WO2023142835A1

WO2023142835A1 - Atomizer and aerosol generating device

Info

Publication number: WO2023142835A1
Application number: PCT/CN2022/142270
Authority: WO
Inventors: 邱伟华
Original assignee: 深圳市卓尔悦电子科技有限公司
Priority date: 2022-01-25
Filing date: 2022-12-27
Publication date: 2023-08-03
Also published as: CN217309186U

Abstract

An atomizer and an aerosol generating device. By forming an auxiliary air channel (3) that is communicated with an air inlet hole (4) and a vapor outlet (15) on a liquid storage member (1), when a vent hole (25) and/or an air guide channel (16) of the atomizer are blocked by a viscous aerosol forming substrate, external air can be directly guided to the vapor outlet (15) through the air inlet hole (4) and the auxiliary air channel (3) under the action of negative pressure formed by vaping of a user, such that a pneumatic switch (84) can sense a change in air flow or air pressure to trigger the aerosol generating device to start working. Then, heat generated after an atomization core (21) is energized can heat the viscous aerosol forming substrate, such that the fluidity of the viscous aerosol forming substrate is improved to release the phenomenon of blocking the vent hole (25) and/or the air guide channel (16), and prevent unsmooth airflow circulation caused by the fact that a viscous aerosol forming substrate having poor fluidity can easily block the vent hole (25) of the atomization core, thereby causing a microphone switch to be difficult to be triggered and started to affect the normal use of the aerosol generating device.

Description

Nebulizer and aerosol generating device

technical field

The utility model belongs to the technical field of simulated smoking, and particularly relates to an atomizer and an aerosol generating device.

Background technique

The aerosol generating device is a relatively common simulated smoking product, which mainly includes an atomizer and a power supply device. The power supply device supplies power to the atomizing core in the atomizer. The sol-forming matrix is heated and atomized to form smoke, and the user inhales the smoke to achieve the effect of simulating smoking.

At present, the aerosol generating device that starts to work by sensing the airflow through the microphone switch is generally provided with a vent hole on the atomizing core that communicates with the smoke outlet and the induction air cavity. Under the action of the negative pressure formed by the user's suction, the external air is introduced into the smoke outlet through the air intake hole, the induction air cavity and the ventilation hole, so that the microphone switch is triggered and starts to work when it senses the change of air flow or air pressure. However, viscous aerosols with poor fluidity form a matrix, which can easily block the ventilation holes of the atomizing core, resulting in poor air flow, making it difficult to activate the microphone switch, and affecting the normal use of the aerosol generating device.

Utility model content

Based on the above-mentioned problems in the prior art, one of the purposes of the embodiments of the present invention is to provide an atomizer to solve the problem that the viscous aerosol-forming matrix in the prior art easily blocks the passage of the atomizing core. Air holes lead to poor air flow, which makes it difficult for the microphone switch to be triggered and activated.

In order to achieve the above purpose, the technical solution adopted by the utility model is: provide an atomizer for an aerosol generating device, the atomizer includes:

The liquid storage part is internally provided with a liquid storage cavity for storing aerosol-forming substrates, and the liquid storage part is provided with a smoke outlet and an air guide channel communicated with the smoke outlet;

The atomization assembly is used to atomize the aerosol-forming substrate provided by the liquid storage chamber, the atomization assembly includes an atomization core arranged in the liquid storage part, and the atomization core is provided with a The vent hole between the air guide channel and the air inlet hole of the aerosol generating device; and

An auxiliary air passage is arranged on the liquid storage part, the air outlet port of the auxiliary air passage is connected to the smoke outlet, and the air inlet port of the auxiliary air passage is connected to the air inlet;

Wherein, when the ventilation hole and/or the air guide channel are blocked, the external air can be led to the smoke outlet through the auxiliary air channel, so that the air flow can trigger the pneumatic switch of the aerosol generating device Start working.

Further, the ventilation hole and the air guide channel constitute a main airway, and the suction resistance of the main airway is smaller than that of the auxiliary airway.

Further, the air hole and the air guide channel constitute a main airway, and the air flow cross-sectional area of the main airway is larger than the air flow cross-sectional area of the auxiliary airway, so that the suction resistance of the main airway is smaller than that of the auxiliary airway. The resistance to draw of the auxiliary airway.

Further, the vent hole and the air guide channel constitute a main airway, the length of the main airway is shorter than the length of the auxiliary airway, so that the suction resistance of the main airway is smaller than that of the auxiliary airway suction resistance.

Further, an auxiliary air groove is recessed on the outer side wall of the liquid storage part, and the atomizer also includes a sleeve sleeved on the outer side wall of the liquid storage part, and the inner side wall of the sleeve is connected to the The auxiliary air groove surrounds and forms the auxiliary air channel.

Further, the atomizing core is a ceramic atomizing core, and the ceramic atomizing core is provided with the air hole.

Further, the liquid storage part includes a cartridge case with the liquid storage cavity formed inside, a top cover arranged at the top of the cartridge case, and a cartridge seat provided at the bottom end of the cartridge case, and the top cover is provided with There is the smoke outlet, the atomizing core is arranged in the cartridge case, the air guide channel is provided on the cartridge case, and the air guide port communicating with the air hole is provided on the cartridge seat .

Further, the atomization assembly also includes an atomization chamber supported and fixed on the cartridge seat, and an air pipe connecting the atomization chamber and the smoke outlet, and the atomization core is housed in In the atomization chamber, the lumen of the air pipe constitutes the air guide channel, and the atomization chamber is provided with a liquid inlet hole communicating with the liquid storage chamber.

Based on the above-mentioned problems in the prior art, the second object of the embodiments of the present invention is to provide an aerosol generating device with an atomizer in any of the above-mentioned solutions.

In order to achieve the above object, the technical solution adopted by the utility model is to provide an aerosol generating device, comprising the atomizer and a power supply device for supplying power to the atomizer.

Further, the power supply device includes a casing, a battery arranged in the casing, a sealing seat arranged in the casing and a pneumatic switch arranged on the sealing seat, and the air inlet hole is arranged in the casing Above; when the atomizer is assembled in the top opening of the casing, the part of the casing outside the sealing seat and the battery defines a sealed air chamber, and the air chamber communicates with the Vent and the air intake.

Compared with the prior art, the above one or more technical solutions in the embodiment of the utility model have at least one of the following beneficial effects:

In the atomizer and aerosol generating device in the embodiment of the utility model, by setting the auxiliary air passage connecting the air inlet and the smoke outlet on the liquid storage part, when the air hole and/or the air guide channel of the atomizer are When the viscous aerosol forms a matrix blockage, under the negative pressure formed by the user’s suction, the external air can be directly drained to the smoke outlet through the air intake hole and the auxiliary air channel, so that the pneumatic switch can sense the change of air flow or air pressure. The change triggers the aerosol generating device to start working. Then, the heat generated after the atomizing core is energized can heat the viscous aerosol-forming matrix, improve the fluidity of the viscous aerosol-forming matrix, and achieve the effect of unblocking and/or air guiding channels, so that the airflow It can directly flow into the user's mouth through the ventilation hole, the air guide channel and the smoke outlet. In this way, when the main airway is not blocked, the airflow is mainly led to the smoke outlet through the main airway, and the pneumatic switch in the aerosol generating device can sense the change of air flow or air pressure, and trigger the aerosol generating device to start working .

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the practical For some novel embodiments, those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is a schematic cross-sectional structure diagram of an atomizer provided by an embodiment of the present invention;

Figure 2 is an exploded view of the atomizer provided by the embodiment of the present invention;

Fig. 3 is a schematic cross-sectional structure diagram of the aerosol generating device provided by the embodiment of the present invention;

Fig. 4 is another sectional structural schematic diagram of the aerosol generating device provided by the embodiment of the present invention;

Fig. 5 is an exploded view of the aerosol generating device provided by the embodiment of the present invention.

Wherein, each reference sign in the figure:

1-liquid storage part; 11-cartridge case; 12-top cover; 13-cartridge seat; 131-air guide port; 14-liquid storage chamber; 15-cigarette outlet; 16-air guide channel;

2-Atomization component; 21-Atomization core; 22-Atomization chamber; 23-Aeration pipe;

3-auxiliary airway; 4-intake hole; 5-auxiliary air groove; 6-main airway; 7-kit;

8-power supply device; 81-shell; 82-battery; 83-sealing seat; 84-pneumatic switch; 85-air cavity.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that when an element is referred to as being “connected to” or “disposed on” another element, it may be directly on the other element or be 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.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined. "Plurality" means one or more than one, unless otherwise clearly and specifically defined.

In describing the present invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, not all referring to the same embodiments. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

Please refer to Fig. 1 to Fig. 5 together, now the atomizer provided by the embodiment of the utility model will be described. The atomizer provided by the embodiment of the utility model is suitable for an aerosol generating device, and the aerosol generating device includes an atomizer and a power supply device 8 electrically connected to the atomizer. When in use, the power supply device 8 is used to provide electric energy to the atomizer, and the atomizer is electrically driven to heat and atomize the aerosol-forming substrate stored in the atomizer for the user to inhale to achieve the effect of simulating smoking.

Please further refer to Fig. 1 and Fig. 2. The atomizer provided by the embodiment of the present invention includes a liquid storage part 1, an atomization assembly 2 and an auxiliary air channel 3 arranged on the liquid storage part 1. The inside of the liquid storage part 1 A liquid storage cavity 14 is provided for storing the aerosol-forming substrate. The liquid storage part 1 is provided with a smoke outlet 15 and an air guide channel 16 respectively, and the air guide channel 16 communicates with the smoke outlet 15 . The atomization assembly 2 can atomize the aerosol-forming substrate provided by the liquid storage chamber 14. The atomization assembly 2 includes an atomization core 21 arranged in the liquid storage part 1, and the atomization core 21 is provided with an airflow or smoke passage. The air hole 25 communicates with the air guide channel 16 and the air inlet 4 of the aerosol generating device. Then, when the atomizer is working, under the negative pressure formed by the user’s suction, the external air is introduced into the aerosol generating device through the air inlet 4, and the pneumatic switch 84 in the aerosol generating device senses the change of the air flow or air pressure, thereby Trigger the aerosol generating device to start working. After the atomizing core 21 is powered on, the aerosol forming substrate can be heated and atomized. , The smoke outlet 15 flows into the mouth of the user for the user to smoke.

When the aerosol-forming substrate is a viscous liquid, because the viscous aerosol-forming substrate has poor fluidity, especially when the viscous aerosol-forming substrate is cold, it usually adheres to the vent of the atomizing core 21 in the form of paste. On the hole wall of the air hole 25, it is easy to block the air hole 25 of the atomizing core 21 and cause the air flow to be unsmooth, thereby causing the pneumatic switch 84 in the aerosol generating device to be unable to sense the change of air flow or air pressure, so that the aerosol generating device cannot Start working. Please refer to Fig. 1 and Fig. 2 in combination. In order to solve the problem that the air hole 25 of the atomizing core 21 is easily blocked by the cooled viscous aerosol forming matrix, an auxiliary air channel 3 is set on the liquid storage part 1, and the auxiliary air channel The air outlet port of 3 communicates with the smoke outlet 15, and communicates the air inlet port of the auxiliary air passage 3 with the air inlet 4. When the ventilation hole 25 and/or the air guide channel 16 are blocked by the viscous aerosol-forming matrix, the external air can be directly drained to the Smoke outlet 15, then the pneumatic switch 84 in the aerosol generating device can sense the change of air flow or air pressure, and trigger the aerosol generating device to start working. After the aerosol generating device starts to work, the heat generated by the electrification of the atomizing core 21 can heat the viscous aerosol-forming substrate attached and blocked in the air hole 25 and/or the air guide channel 16, so that the viscous aerosol The fluidity of the sol-forming matrix becomes better and the phenomenon of blocking the vent hole 25 and/or the air guide channel 16 is removed, so that the air introduced into the aerosol generating device is mixed with the smoke formed by atomization and directly passes through the vent hole 25 and the air guide channel 16 , The smoke outlet 15 flows into the mouth of the user for the user to smoke. It should be noted that, in some of these embodiments, under the negative pressure formed by the user’s suction, the main air channel 6 formed by the vent hole 25 and the air guide channel 16 guides the gas flow in a straight line, while the auxiliary air channel 3 is Guide the gas flow in a tortuous path, so that when the main air passage 6 is not blocked, the air flow is mainly led to the smoke outlet 15 through the main air passage 6, and the pneumatic switch 84 in the aerosol generating device can sense the air flow or air pressure. change, and trigger the aerosol generating device to start working. When the main airway 6 is blocked, the air flow is mainly led to the smoke outlet 15 through the auxiliary airway 3, and the pneumatic switch 84 in the aerosol generating device can sense the change of the air flow or air pressure, and trigger the aerosol generating device. Start working.

Compared with the prior art, the atomizer provided by the embodiment of the present invention, by setting the auxiliary air channel 3 connecting the air inlet 4 and the smoke outlet 15 on the liquid storage part 1, when the air hole 25 of the atomizer And/or when the air guide channel 16 is blocked by a viscous aerosol-forming matrix, the external air can be directly led to the smoke outlet 15 through the air inlet 4 and the auxiliary air channel 3 under the negative pressure formed by the user’s suction , the pneumatic switch 84 in the aerosol generating device can sense the change of air flow or air pressure, and trigger the aerosol generating device to start working. Next, the heat generated after the atomizing core 21 is electrified can heat the viscous aerosol-forming substrate, so that the fluidity of the viscous aerosol-forming substrate becomes better and the phenomenon of blocking and/or the air guide channel 16 is removed, The airflow can directly flow into the user's mouth through the vent hole 25, the air guide channel 16, and the smoke outlet 15. In this way, when the main air passage 6 is not blocked, the air flow is mainly led to the smoke outlet 15 through the main air passage 6, and the pneumatic switch 84 in the aerosol generating device can sense the change of the air flow or air pressure, and trigger the aerosol The generator starts working.

In some of these embodiments, the suction resistance of the air guide channel 16 is smaller than that of the auxiliary air channel 3, so that the air flow can The main air channel 6 formed by the vent hole 25 and the air guide channel 16 is preferentially drained to the smoke outlet 15, and the pneumatic switch 84 in the aerosol generating device can sense the change of air flow or air pressure, and trigger the generation of aerosol The device starts working normally. It can be understood that please refer to FIG. 1 . In some other embodiments, in order to make the air flow better preferentially flow to the smoke outlet 15 through the main air channel 6 formed by the air hole 25 and the air guide channel 16 , the air guide The suction resistance of the main airway 6 formed by the channel 16 and the air guiding channel 16 is smaller than that of the auxiliary airway 3 . It should be noted that a plurality of auxiliary air channels 3 can be arranged on the liquid storage part 1 to enhance the sensitivity of the pneumatic switch 84 in the aerosol generating device to sense changes in air flow or air pressure.

In some of these embodiments, the cross-sectional area of the air flow of the air guide channel 16 is greater than the air flow cross-sectional area of the auxiliary air channel 3 , so that the suction resistance of the air guide channel 16 is smaller than that of the auxiliary air channel 3 . In this way, when the vent hole 25 and/or the air guide channel 16 are not blocked by the viscous aerosol-forming matrix, the airflow is preferentially led to the smoke outlet 15 through the main air channel 6 formed by the vent hole 25 and the air guide channel 16 , and enable the pneumatic switch 84 in the aerosol generating device to sense changes in air flow or air pressure, and trigger the aerosol generating device to start working normally. It can be understood that please refer to FIG. 1 . In some other embodiments, in order to make the air flow better preferentially flow to the smoke outlet 15 through the main air channel 6 formed by the air hole 25 and the air guide channel 16 , the air guide The air flow cross-sectional area of the main air channel 6 formed by the channel 16 and the air guide channel 16 is larger than the air flow cross-sectional area of the auxiliary air channel 3 , so that the suction resistance of the main air channel 6 is smaller than that of the auxiliary air channel 3 .

In some of these embodiments, the air hole 25 and the air guide channel 16 constitute the main airway 6, and the length of the main airway 6 is less than the length of the auxiliary airway 3, so that the suction resistance of the main airway 6 is smaller than that of the auxiliary airway 3. suction resistance. In this way, when the vent hole 25 and/or the air guide channel 16 are not blocked by the viscous aerosol-forming matrix, the airflow is preferentially led to the smoke outlet 15 through the main air channel 6 formed by the vent hole 25 and the air guide channel 16 , and enable the pneumatic switch 84 in the aerosol generating device to sense changes in air flow or air pressure, and trigger the aerosol generating device to start working normally.

Please refer to FIG. 1 and FIG. 2 in conjunction. In some embodiments, the outer wall of the liquid storage part 1 is recessed with an auxiliary air groove 5, and the atomizer also includes a kit sleeved on the outer wall of the liquid storage part 1. 7. The inner side wall of the kit 7 is surrounded by the auxiliary air groove 5 to form the auxiliary air channel 3 . Understandably, in some other embodiments, the auxiliary air channel 3 may also be directly provided on the liquid storage element 1 . In some other embodiments, an auxiliary air groove 5 can also be recessed on the outer side wall of the liquid storage part 1, and the auxiliary air groove 5 is provided on the inner side wall of the sleeve 7 corresponding to the auxiliary air groove 5. The auxiliary air groove 5 and the auxiliary air groove 5 on the liquid storage part 1 are surrounded to form the auxiliary air channel 3 .

Please refer to FIG. 1 and FIG. 2 together. In some embodiments, the atomizing core 21 may be, but not limited to, a ceramic atomizing core 21 , and the ceramic atomizing core 21 is provided with a ventilation hole 25 . Furthermore, the ceramic atomizing core 21 is arranged in a columnar shape, and a vent hole 25 is provided through the ceramic atomizing core 21 along its axial direction, so that when the vent hole 25 is not blocked, the air flow or smoke can only pass through the vent hole 25 is drained to the air guide channel 16.

Please refer to FIG. 1 and FIG. 2 in conjunction. In some embodiments, the liquid storage part 1 includes a cartridge case 11 with a liquid storage chamber 14 formed inside, a top cover 12 disposed on the top of the cartridge case 11 and a bottom cover disposed on the bottom of the cartridge case 11. The cartridge seat 13 at the end, the top cover 12 is provided with a smoke outlet 15, the cartridge case 11 is provided with an auxiliary air groove 5 or an auxiliary air channel 3, the atomizing core 21 is set in the cartridge case 11, and the cartridge case 11 is provided with The air guide channel 16 communicating with the smoke outlet 15 and the air hole 25 , the cartridge holder 13 is provided with an air guide port 131 communicating with the air hole 25 , and the air guide port 131 communicates with the air intake hole 4 . It should be noted that the air intake hole 4 can be set on the pod seat 13 of the liquid storage part 1, and the pneumatic switch 84 is correspondingly provided on the pod seat 13 of the liquid storage part 1, so that the external air can pass through the air intake hole. 4 When introduced into the nebulizer, the pneumatic switch 84 in the nebulizer can sense the change of air flow or air pressure, and trigger the aerosol generating device to start working normally. Of course, please refer to Fig. 3 and Fig. 4 in combination, in some other embodiments, the air inlet 4 can also be arranged on the seat of the power supply device 8, and then the pneumatic switch 84 is correspondingly arranged in the power supply device 8, so that the external air When introduced into the power supply device 8 through the air inlet 4, the pneumatic switch 84 in the power supply device 8 can sense the change of the air flow or air pressure, and trigger the aerosol generating device to start working normally. When an air cavity 85 is formed inside the power supply device 8, the air guide port 131 and the air intake hole 4 are communicated through the air cavity 85; Under the action of the negative pressure formed by the user’s suction, the external air flows through the air inlet 4, the air cavity 85, the air guide port 131, and the main air channel 6 (the air flow channel composed of the air hole 25 and the air guide channel 16) to the smoke outlet. port 15, when the air flow flows through the air cavity 85, the pneumatic switch 84 on the sealing seat 83 can sense the change of the air flow or air pressure, and trigger the aerosol generating device to start working normally. When the vent hole 25 and/or the air guide channel 16 are blocked by the viscous aerosol-forming matrix, the external air passes through the air intake hole 4, the air cavity 85, and the auxiliary air channel 3 under the action of the negative pressure formed by the user’s suction. Drainage to the smoke outlet 15, when the air flow flows through the air cavity 85, the pneumatic switch 84 on the sealing seat 83 can sense the change of the air flow or air pressure, and trigger the aerosol generating device to start working normally.

Please refer to FIG. 1 and FIG. 2 in conjunction. In some embodiments, the atomization assembly 2 further includes an atomization chamber 22 supported and fixed on the cartridge seat 13 , and a communication channel between the atomization chamber 22 and the smoke outlet 15 . The air pipe 23 and the atomizing core 21 are accommodated in the atomizing chamber 22 , the lumen of the vent pipe 23 constitutes the air guide channel 16 , and the atomizing chamber 22 is provided with a liquid inlet hole 26 connected to the liquid storage chamber 14 . Then the aerosol-forming substrate in the liquid storage chamber 14 can be replenished into the atomization chamber 22 through the liquid inlet hole 26, so that the atomization core 21 in the atomization chamber 22 can be heated and atomized to form smoke. It should be noted that, in some of these embodiments, the atomization chamber 22 is arranged in a cylindrical shape, and the ceramic atomization core 21 is also arranged in a columnar shape. When the atomization core 21 is accommodated in the atomization chamber 22, the A liquid-absorbing member 24 is provided between the outer wall and the inner wall of the atomizing chamber 22, and only a vent hole 25 is provided on the ceramic atomizing core 21 along its axial direction, so that when the vent hole 25 is not blocked, the Air flow or smoke can only be conducted through the ventilation hole 25 to the air guide channel 16 . It can be understood that the liquid absorbing member 24 may be, but not limited to, a liquid absorbing cotton sleeve sheathed on the outside of the ceramic atomizing core 21 .

Please refer to Fig. 3 to Fig. 5, the embodiment of the present utility model also provides an aerosol generating device, the aerosol generating device includes the atomizer provided by any of the above embodiments and a power supply device 8 for supplying power to the atomizer . Since the aerosol generating device has all the technical features of the atomizer provided in any of the above-mentioned embodiments, it has the same technical effect as the above-mentioned atomizer.

Please refer to FIG. 3 and FIG. 4 in conjunction. In some embodiments, the power supply device 8 includes a housing 81, a battery 82 disposed in the housing 81, a sealing seat 83 disposed in the housing 81, and a pneumatic valve disposed on the sealing seat 83. The switch 84 and the air inlet 4 are arranged on the shell 81; when the atomizer is assembled in the top opening of the shell 81, the part of the shell 81 outside the sealing seat 83 and the battery 82 defines a closed air cavity 85, and the air The chamber 85 communicates with the air hole 25 and the air inlet 4 . When the vent hole 25 and/or the air guide channel 16 are not blocked by the viscous aerosol-forming matrix, the external air passes through the air inlet 4, the air cavity 85, and the air guide port 131 under the action of the negative pressure formed by the user’s suction. 1. The main air passage 6 (ventilation hole 25 and air guide channel 16) is drained to the smoke outlet 15. When the air flow flows through the air cavity 85, the pneumatic switch 84 on the sealing seat 83 can sense the change of the air flow or air pressure. change, and trigger the aerosol generating device to start working normally. When the vent hole 25 and/or the air guide channel 16 are blocked by the viscous aerosol-forming matrix, the external air passes through the air intake hole 4, the air cavity 85, and the auxiliary air channel 3 under the action of the negative pressure formed by the user’s suction. Drainage to the smoke outlet 15, when the air flow flows through the air cavity 85, the pneumatic switch 84 on the sealing seat 83 can sense the change of the air flow or air pressure, and trigger the aerosol generating device to start working normally. It should be noted that the above-mentioned pneumatic switch 84 may be but not limited to a microphone switch. Please refer to FIG. 5 , in some other embodiments, the casing 7 and the shell 81 are integrally formed. Understandably, please refer to FIG. 3 and FIG. 4 in conjunction. In some other embodiments, when the air inlet 4 is provided on the housing 81 , the housing 81 can also be placed on the outside of the cartridge case 11 of the liquid storage part 1 , so that the inner side wall of the housing 81 and the auxiliary air groove 5 on the cartridge case 11 are surrounded to form the auxiliary air channel 3 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims

An atomizer for an aerosol generating device, characterized in that the atomizer comprises:

The liquid storage part is provided with a liquid storage chamber for storing the aerosol-forming substrate inside, and the liquid storage part is provided with a smoke outlet and an air guide channel communicating with the smoke outlet;

The atomization assembly is used to atomize the aerosol-forming substrate provided by the liquid storage chamber, the atomization assembly includes an atomization core arranged in the liquid storage part, and the atomization core is provided with a The vent hole between the air guide channel and the air inlet hole of the aerosol generating device; and

An auxiliary air passage is arranged on the liquid storage part, the air outlet port of the auxiliary air passage is connected to the smoke outlet, and the air inlet port of the auxiliary air passage is connected to the air inlet;

Wherein, when the ventilation hole and/or the air guide channel are blocked, the external air can be led to the smoke outlet through the auxiliary air channel, so that the air flow can trigger the pneumatic switch of the aerosol generating device Start working.
The nebulizer according to claim 1, wherein the air hole and the air guide channel constitute a main airway, and the suction resistance of the main airway is smaller than that of the auxiliary airway.
The nebulizer according to claim 1, wherein the air hole and the air guide channel form a main air channel, and the air flow cross-sectional area of the main air channel is larger than the air flow cross-sectional area of the auxiliary air channel , so that the suction resistance of the main airway is smaller than the suction resistance of the auxiliary airway.
The atomizer according to claim 1, wherein the air hole and the air guide channel form a main air channel, and the length of the main air channel is shorter than the length of the auxiliary air channel, so that the The resistance to draw of the primary airway is smaller than the resistance to draw of the auxiliary airway.
The atomizer according to any one of claims 1 to 4, wherein an auxiliary air groove is recessed on the outer wall of the liquid storage part, and the atomizer also includes a A casing on the outer wall of the component, and the inner wall of the casing is surrounded by the auxiliary air groove to form the auxiliary air channel.
The atomizer according to any one of claims 1 to 4, characterized in that, the atomizing core is a ceramic atomizing core, and the ceramic atomizing core is provided with the air hole.
The atomizer according to any one of claims 1 to 4, wherein the liquid storage part includes a cartridge case with the liquid storage cavity formed inside, a top cover and a device at the top of the cartridge case. The cartridge seat at the bottom end of the cartridge case, the top cover is provided with the smoke outlet, the atomizing core is arranged in the cartridge case, the air guide channel is provided on the cartridge case, The pod seat is provided with an air guide port communicating with the air hole.
The atomizer according to claim 7, wherein the atomization assembly further includes an atomization chamber supported and fixed on the cartridge seat, and the atomization chamber communicates with the smoke outlet The air tube, the atomization core is accommodated in the atomization chamber, the lumen of the air pipe constitutes the air guide channel, and the atomization chamber is provided with a liquid inlet that communicates with the liquid storage chamber. hole.
An aerosol generating device, comprising an atomizer and a power supply device for supplying power to the atomizer, characterized in that the atomizer is the atomizer according to any one of claims 1 to 8 .
The aerosol generating device according to claim 9, wherein the power supply device comprises a housing, a battery disposed in the housing, a sealing seat disposed in the housing, and a sealing seat disposed on the sealing seat. Pneumatic switch, the air intake hole is arranged on the shell; when the atomizer is assembled in the top opening of the shell, the part of the shell outside the sealing seat and the battery is defined An airtight air chamber is formed, and the air chamber communicates with the vent hole and the air inlet hole.