CN220545839U

CN220545839U - Aerosol generating device

Info

Publication number: CN220545839U
Application number: CN202320604231.8U
Authority: CN
Inventors: 曾文; 贺景松; 许聪; 王帅志; 徐中立; 李永海
Original assignee: Shenzhen FirstUnion Technology Co Ltd
Current assignee: Shenzhen FirstUnion Technology Co Ltd
Priority date: 2023-03-18
Filing date: 2023-03-18
Publication date: 2024-03-01
Anticipated expiration: 2033-03-18

Abstract

The present application provides an aerosol-generating device comprising a housing; a heating assembly for directly or indirectly heating an aerosol-generating article received within the housing; the air pump is provided with an air inlet hole and an air outlet hole; the air inlet hole is in fluid communication with the air inlet, and the air outlet hole is in fluid communication with the heating assembly; the bracket comprises a first accommodating cavity and an airflow channel formed on the bracket; one end of the air flow channel extends into the first accommodating cavity, and the other end of the air flow channel is in fluid communication with the heating component; the air pump is at least partially accommodated in the first accommodating cavity, and the air outlet hole is arranged near one end of the air flow channel. According to the air pump assembly, the air can be actively supplied to the heating component through the air pump assembled on the support, so that air inlet of the aerosol generating device is controllable, the aerosol generating device is facilitated to generate the aerosol quantity required by a user, and the suction experience of the user is improved.

Description

Aerosol generating device

Technical Field

The application relates to the technical field of electronic atomization, in particular to an aerosol generating device.

Background

Smoking articles such as cigarettes and cigars burn tobacco during use to produce smoke. Attempts have been made to provide alternatives to these tobacco-burning articles by creating products that release compounds without burning. An example of such a product is a so-called heated non-combustible product, which releases a compound by heating tobacco rather than burning tobacco.

An aerosol-generating device comprises an air heater operable to heat air flowing therethrough to form high temperature air, and to cause the high temperature air to enter an aerosol-generating article and to bake the aerosol-generating article during contact with the article to produce a volatile substance which forms a volatile aerosol.

The aerosol-generating device has a problem in that the air intake through the air inlet is not controllable.

Disclosure of Invention

The application provides an aerosol generating device, and aims to solve the problem that air inlet through an air inlet is uncontrollable in the existing aerosol generating device.

In one aspect the present application provides an aerosol-generating device comprising:

a housing having an opening and an air inlet; at least a portion of the aerosol-generating article is removably received within the housing through the opening;

a heating assembly for directly or indirectly heating the aerosol-generating article received within the housing;

the air pump is provided with an air inlet hole and an air outlet hole; the air inlet aperture is in fluid communication with the air inlet and the air outlet aperture is in fluid communication with the heating assembly;

a detection device configured to detect an operating parameter of the aerosol-generating device to generate an electrical signal;

a controller configured to acquire an electrical signal generated by the detection device;

the electric signal is used for controlling the air pump to work, so that the air pump compresses air flowing in from the air inlet hole and then discharges the compressed air through the air outlet so as to increase the air inflow of the heating component.

the bracket comprises a first accommodating cavity and an air flow channel formed on the bracket; one end of the air flow channel extends into the first accommodating cavity, and the other end of the air flow channel is in fluid communication with the heating component;

the air pump is at least partially accommodated in the first accommodating cavity, and the air outlet hole is arranged close to one end of the air flow channel.

The aerosol generating device that this application provided through the air pump of assembly to the support, can be initiatively towards heating element supply air for aerosol generating device's inlet air is controllable, does benefit to aerosol generating device and produces the required aerosol volume of user, has promoted user's suction experience. Meanwhile, the characteristic of fast air flow is utilized, so that the flow speed of aerosol generated by the heated aerosol generating product is fast, the resistance generated by the aerosol generating product is counteracted, the suction resistance of a user is greatly reduced, and the suction relaxed feeling is improved.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures are not to scale, unless expressly stated otherwise.

Fig. 1 is a schematic view of an aerosol-generating device provided in an embodiment of the present application;

fig. 2 is a schematic view of an aerosol-generating article provided in an embodiment of the present application received within an aerosol-generating device;

fig. 3 is a schematic cross-sectional view of an aerosol-generating device provided in an embodiment of the present application;

fig. 4 is another schematic cross-sectional view of an aerosol-generating device provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a heating assembly provided in an embodiment of the present application;

FIG. 6 is an exploded schematic view of a heating assembly provided by an embodiment of the present application;

FIG. 7 is a schematic cross-sectional view of a substrate in a heating assembly provided in an embodiment of the present application;

FIG. 8 is a schematic view of a heating element in a heating assembly provided in an embodiment of the present application;

FIG. 9 is a schematic view of another thermal conductor in a heating assembly provided in an embodiment of the present application;

FIG. 10 is a schematic illustration of a heating profile of a heating element provided in an embodiment of the present application;

FIG. 11 is a schematic view of a stent provided in an embodiment of the present application;

FIG. 12 is another schematic view of a stent provided in an embodiment of the present application;

fig. 13 is a schematic diagram of a control method of an aerosol-generating device according to an embodiment of the present application;

fig. 14 is a schematic diagram of a control process of an aerosol-generating device according to an embodiment of the present application.

Detailed Description

In order to facilitate an understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and the like are used in this specification for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application in this description is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

Fig. 1-4 are diagrams illustrating an aerosol-generating device 100 according to an embodiment of the present application, comprising:

the housing 10 has an accommodating space therein for accommodating the heating element 11, the battery cell 12, the circuit 13, and the like. The housing 10 has opposite proximal and distal ends, the proximal end being provided with an opening 101, and the aerosol-generating article 20 containing the smokable material or aerosol-forming substrate being removably received within the housing 10 through the opening 101. The distal end is provided with an air inlet, i.e. the opening 101 is spaced from the air inlet. In a preferred implementation, the aerosol-generating device 100 is provided with an interface 102 at the distal end of the housing 10 through which interface 102 external air may enter the housing 10, i.e. the interface 102 defines an air inlet.

In further implementation, a sliding cover is provided at the upper end of the housing 10, and the sliding cover can open or close the opening 101. The opening 101 or a clamping member is further provided near the opening 101 to clamp or hold the aerosol-generating article 20; in a preferred embodiment, the holder is in contact with the surface of the aerosol-generating article 20 to form a seal when holding the aerosol-generating article 20, and thus can provide a sealing effect to the opening 101, i.e. external air cannot flow in through the opening 101, thereby facilitating accurate control of the amount of air taken in the air flow channel C (described below).

The heating chamber a communicates with the opening 101. At least part of the aerosol-generating article 20 is removably received in the heating chamber a through the opening 101.

A heating assembly 11 for heating the aerosol-generating article 20 received in the heating chamber a to generate an aerosol.

The electrical core 12 provides electrical power for operating the aerosol-generating device 100. For example, the electrical cell 12 may provide electrical power to heat the heating assembly 11. Further, the battery 12 may provide the electrical power needed to operate other elements provided in the aerosol-generating device 100.

The battery 12 may be a rechargeable battery, such as by recharging the battery 12 through the interface 102; the cells 12 may also be disposable batteries. The cells 12 may be, but are not limited to, lithium iron phosphate (LiFePO 4) batteries. For example, the cell 12 may be a lithium cobalt oxide (LiCoO 2) battery or a lithium titanate battery.

The circuit 13 may control the overall operation of the aerosol-generating device 100. The circuit 13 controls not only the operation of the battery 12 and the heating assembly 11, but also the operation of other elements in the aerosol-generating device 100. For example: the circuit 13 acquires the electric signal generated by the detection means and controls the operation of the air pump 14 based on the electric signal.

Fig. 5-8 are diagrams illustrating a heating assembly 11 according to an embodiment of the present application, wherein the heating assembly 11 includes a substrate 111, a heater 112, and a heat conductor 113.

The base 111 is configured in a tubular structure. Specifically, the base 111 includes a first end and a second end, and a surface extending between the first end and the second end. The base 111 may be cylindrical, prismatic or other cylindrical, preferably cylindrical.

The substrate 111 is made of a high heat conductive material, for example, a metal or ceramic material with good heat conductive effect. The base 111 is provided therein with a partition 111a, the partition 111a being integrally formed with the base 111, and the partition 111a being provided with a plurality of micropores 111b arranged in an array. The partition 111a partitions the inner space of the substrate 111 into a first chamber a (i.e., a heating chamber a) and a second chamber B, which are in fluid communication through the micro-holes 111B. When the aerosol-generating article 20 is received in the heating chamber a through the opening 101, the partition 111a is in contact with the end of the aerosol-generating article 20 to support the aerosol-generating article 20. The high thermal conductivity of the separator 111a also enables heating of the end of the aerosol-generating article 20 to balance the effects of heating and baking the aerosol-generating article 20 for better pumping.

The heater 112 is configured to receive electrical power provided by the electrical cell 12 to generate the heat required to heat the aerosol-generating article 20.

One end of the heater 112 is disposed near the first end of the base 111, and the other end of the heater 112 is disposed near the second end of the base 111, i.e., the heater 112 spans the first chamber a and the second chamber B. In this way, a portion of the heat generated by the heater 112 can directly heat the aerosol-generating article 20 received in the heating chamber a through the substrate 111; another portion of the heat generated by the heater 112 may heat the air of the second chamber B through the substrate 111 to form hot air, which enters the aerosol-generating article 20 through the micro-holes 111B, so that the aerosol-generating article 20 may be baked sufficiently and uniformly. From the above, it can be seen that air from the second end of the substrate 111 flows into the heating element 11, where it is heated to form hot air, which then flows into the aerosol-generating article 20. In this way, the product can be baked quickly and efficiently on the one hand, and the energy supply to the heating assembly 11 can be reduced on the other hand.

In one example, as shown in fig. 8, the heater 112 includes an insulating substrate 112a, a heating element 112b formed on the insulating substrate 112a, and an electrode 112c having one end electrically connected to the heating element 112b and the other end electrically connected to the cell 12.

An insulating substrate 112a is attached to the outer surface of the base 111. The insulating substrate 112a may be made of an electrically insulating material such as a polyimide film, a polytetrafluoroethylene film, or the like.

The heating element 112b is preferably a resistive heating element, and the resistive heating element is made of a metal material with suitable resistance, a metal alloy, graphite, carbon, conductive ceramic, or other composite material of a ceramic material and a metal material. Suitable metals or alloy materials include at least one of nickel, cobalt, zirconium, titanium, nickel alloys, cobalt alloys, zirconium alloys, titanium alloys, nichrome, nickel-iron alloys, iron-chromium-aluminum alloys, iron-manganese-aluminum alloys, or stainless steel, among others.

In the example of fig. 8, the heating element 112b is a resistive heating mesh, wound from a sheet-like or mesh-like substrate. The wound heating element 112b is not a closed tubular shape in the circumferential direction, but a tubular shape having a side opening (not shown) in the length direction. Of course, it is also possible that the wound heating element 112b forms a closed tubular shape in the circumferential direction.

In further implementations, the heating element 112b may also be wrapped around the periphery of the heating element 112b with an electrically insulating material to retain the heating element 112b to the substrate 111.

In yet further implementations, a temperature sensor may be provided at the periphery of the heating element 112b to detect temperature information of the heating element 112b, so that the circuit 13 may control heating of the heating element 112b based on the temperature information. Similar to the foregoing, the temperature sensor may be wrapped with an electrically insulating material around its periphery to retain the temperature sensor on the substrate 111.

In other examples, heater 112 may also include electromagnetic induction heating elements, infrared heating elements, or the like.

The heat conductor 113 is at least partially housed in the second chamber B, and the heat conductor 113 is kept in contact with the inner surface of the base 111. The heat conductor 113 is also made of a material with high heat conductivity, such as metal or ceramic, which has good heat conductivity. In a specific example, a material of high thermal conductivity such as beryllium copper may be used. In this way, part of the heat generated by the heater 112 can heat the air of the second chamber B through the base 111 and the heat conductor 113 to form hot air.

In the example of fig. 5-8, the thermal conductor 113 is configured as a cylindrical structure with a spiral curve in cross section. The heat conductor 113 has gaps 113a arranged in a uniform and orderly manner, and the gaps 113a facilitate rapid heating of the air flowing in from the second end of the base 111. It will be appreciated that in other examples, it is possible that the thermally conductive body 113 is configured in a radial columnar structure. For example, as shown in fig. 9, the radial heat conductor 113 has gaps 113a arranged in a uniform and orderly manner, and also has through holes 113b, and the air flowing in from the second end of the base 111 is facilitated to be rapidly heated by the gaps 113a and the through holes 113 b. Of course, in another example, it is also possible that the heat conductor 113 is configured in a columnar structure in a honeycomb shape.

It is noted that in other examples it is also possible that the heat conductor 113 is not provided, i.e. that the heating element directly heats the aerosol-generating article 20. Alternatively, it is also possible to heat the aerosol-generating article 20 by means of hot air only, i.e. the heating element indirectly heats the aerosol-generating article 20; for example: it is also possible that a heating element is provided in the heat conductor 113, which heats the air flowing through the heat conductor 113 and then heats the aerosol-generating article 20 with hot air.

As shown in fig. 10, generally, the temperature profile of the heating assembly 11 over time includes a warm-up phase, and a pumping phase.

In the warming stage, the temperature of the heating assembly 11 is raised from the initial temperature T0 (or ambient temperature) to the maximum operating temperature T1. In general, T1 may be 150℃to 400 ℃.

In the incubation phase, the temperature of the heating element 11 is maintained at the preset target temperature T1 for a period of time such that the smokable material or aerosol-forming substrate in the aerosol-generating article 20 is sufficiently preheated, enhancing the user's smokable mouthfeel.

The duration of the heating stage is t 0-t 2, the duration of the heat preservation stage is t 2-t 3, and t 0-t 3 is the preheating time of the heating component 11. Generally, the preheating time of the heating element 11 is 5 seconds to 30 seconds.

During the pumping phase, the temperature of the heating assembly 11 is reduced from a maximum operating temperature T1 to a desired operating temperature T2, the desired operating temperature T2 being the optimal temperature for the smokable material or aerosol-forming substrate to generate an aerosol. In general, T2 may be 150℃to 350 ℃. At this stage, the temperature of the heating assembly 11 is generally maintained at the desired operating temperature T2 or fluctuates up and down at the desired operating temperature T2, and T4 to T5 are the holding times.

Note that the heating curve of the heating element 11 is not limited to the case of fig. 10. In other examples, it is also possible that the heating profile of the heating assembly 11 has only a warm-up phase and a pumping phase.

The heat insulating member 16 is disposed at the periphery of the heating assembly 11 to reduce heat transfer from the heating assembly 11 to the housing 10, so as to avoid the problem of burning hands of a user due to an excessively high surface temperature of the housing 10. In a preferred embodiment, the thermal insulation member 16 has inner and outer tubes disposed in a radial direction, with a sealed space formed between the inner and outer tubes, and the sealed space can be evacuated, filled with a gas, and a thermal insulation material, etc. Gases include, but are not limited to, inert gases, air, carbon dioxide, and the like, and insulating materials include, but are not limited to, aerogel, mica sheets, mica tubes, alumina microporous ceramics, cordierite, rock wool board, or rock wool felt, and the like, of low thermal conductivity.

As shown in fig. 11 to 12, the bracket 17 includes a first receiving chamber 171, a second receiving chamber 172, and an air flow passage C.

The first receiving cavity 171 is provided on the front surface of the bracket 17, and the second receiving cavity 172 is provided on the rear surface of the bracket 17, i.e., the first receiving cavity 171 and the second receiving cavity 172 are provided on two opposite surfaces. In this way, the detection means and the air pump 14 are arranged along the thickness direction of the housing, and the space for aerosol generation is reasonably utilized. One end of the air flow channel C extends into the first receiving chamber 171, and the other end of the air flow channel C is in fluid communication with the heating assembly 11. The second receiving chamber 172 is in fluid communication with the airflow channel C.

The air pump 14 is disposed near the distal end of the housing 10. The air pump 14 is at least partially accommodated in the first accommodating chamber 171. The air pump 14 can seal one end of the air flow passage C. In a preferred embodiment, the air pump 14 and the first receiving chamber 171 are further provided with a sealing member 18 for sealing the air-tight end of the air flow channel C (the clamping member seals when clamping the aerosol-generating article 20), thereby facilitating accurate control of the air intake of the air flow channel C.

The air pump 14 has an air inlet hole and an air outlet hole. The intake aperture of the air pump 14 is in fluid communication with the air inlet. The air outlet hole of the air pump 14 is arranged near one end of the air flow channel C, and the air outlet hole of the air pump 14 can partially extend into the air flow channel C; so configured, the air pump 14 is facilitated to supply air to the heating assembly 11. The detection device is at least partially received in the second receiving cavity 172.

The air pump 14 is configured to start or stop operation under the control of the circuit 13, for example, a controller. The air pump 14 may be substantially non-communicating between the air inlet and the air flow passage C when the operation is not started, i.e., the air flowing in from the air inlet cannot be delivered into the air flow passage C, or only a small amount of air can be delivered into the air flow passage C; of course, communication between the air inlet and the air flow channel C is also possible. When the air pump 14 is started to operate, air flowing into the air pump 14 from the air inlet can be compressed and delivered into the air flow passage C through the air outlet hole of the air pump 14, thereby increasing the amount of intake air of the air flow passage C.

The air pump 14 is preferably a micro air pump, and the volume of the micro air pump is as follows: 22+ -2 mm long by 20+ -2 mm wide by 4+ -1 mm high.

The miniature air pump can adopt one of diaphragm type, electromagnetic type, impeller type, piston type and piezoelectric ceramic driving type. Preferably, the miniature air pump adopts a piezoelectric ceramic driving miniature air pump.

In one implementation, a piezoceramic driven micro air pump includes a piezoceramic transducer plate. After the piezoelectric ceramic transduction piece is electrified and works, radial stretching movement and axial stretching movement are carried out simultaneously, and the radial stretching movement and the axial stretching movement are repeated simultaneously, so that the size of the pump cavity is changed, when the piezoelectric ceramic transduction piece is arched outwards, namely the volume of the pump cavity is increased, the air inlet valve is opened, the air outlet valve is closed, and outside air enters the pump cavity through a pump body connecting gap; when the piezoelectric ceramic transduction piece is arched inwards, namely the volume of the pump cavity is reduced, gas is compressed, the pressure of the pump cavity is increased, the air inlet valve is closed, the air outlet valve is opened, and the gas entering the pump cavity is discharged through the air outlet cavity pump nozzle in the pump upper cover. By repeating the regular high-frequency movement in this way, the output of the gas with certain pressure and flow is realized.

The detection means is configured to detect an operating parameter of the aerosol-generating device to generate an electrical signal. Operating parameters include, but are not limited to, air pressure variation, heating temperature, heating time, and the like.

In an example, the controller is configured to control the air pump 14 to start operating to expel aerosol generated by the aerosol-generating article 20 out of the housing 10 after controlling the heating assembly 11 to start heating, until controlling the heating assembly 11 to enter the pumping phase, i.e. controlling the heating assembly 11 to be in the warming phase.

When the air pump 14 delivers outside air to the air flow passage C, the air of the air flow passage C will be delivered to the heating assembly 11, and the heated air formed in the second chamber B will enter the aerosol-generating article 20 through the micro-holes 111B, thereby discharging the heated aerosol out of the housing 10.

Since the aerosol generated by heating the aerosol-generating article 20 prior to the suction phase contains a relatively high water content; if the aerosol containing more water is sucked by the user, the user is easy to cause burning pain, and especially the burning pain is more obvious when the user sucks the first mouth. Therefore, by controlling the air pump 14 to start working after the heating component 11 starts heating and before the heating component 11 enters the sucking stage, the aerosol generated by heating is discharged out of the shell 10, so that the problem that a user feels that the aerosol temperature is higher when sucking the first mouth, and the burning sensation is caused can be effectively avoided, and the sucking experience of the user is further improved.

In a specific implementation, the air pump 14 may be controlled to stop operating when the amount of air delivered into the heating assembly 11 by the air pump 14 is controlled to reach a preset amount, or when the operating time of the air pump 14 reaches a preset time. That is, the air pump 14 can be controlled to stop the operation as long as the aerosol containing a large amount of water can be discharged outside the housing 10. If the maximum flow rate of the air pump 14 is sufficient to expel the aerosol containing a relatively high water content out of the housing 10, the air pump 14 may be controlled to operate to pump an external air into the heating assembly 11 once. Typically, the air pump 14 is operated for about 5 to 7 seconds to discharge the aerosol containing a large amount of water out of the housing 10.

In a specific example, the controller is configured to acquire temperature information of the heating assembly 11 after controlling the heating assembly 11 to start heating; when the temperature of the heating assembly 11 reaches a preset temperature, the air pump 14 is controlled to start operating to discharge the aerosol generated by the aerosol-generating article 20 out of the housing 10.

In this specific example, the detection means includes a temperature sensor for detecting temperature information of the heating assembly 11. The controller acquires temperature information of the heating component detected by the temperature sensor; when the temperature of the heating assembly 11 reaches a preset temperature, the air pump 14 is controlled to start working.

Wherein the preset temperature is less than the maximum operating temperature T1 of the heating element 11, i.e. before the temperature of the heating element 11 reaches T1, the air pump 14 is controlled to start to operate so as to deliver the external air into the heating element 11, thereby discharging the heated aerosol out of the housing 10.

In another specific example, the controller is configured to time the heating time of the heating assembly 11 after controlling the heating assembly 11 to start heating; when the heating time of the heating assembly 11 reaches a preset time, the air pump 14 is controlled to start to operate so as to discharge the aerosol generated from the aerosol-generating article 20 out of the housing 10.

In this particular example, the detection means comprise a timer for timing the heating time of the heating assembly 11. The controller acquires the timing time of the timer; when the counted time of the timer reaches the preset time, the air pump 14 is controlled to start working.

Wherein the preset time is less than the duration of the temperature rise of the heating assembly 11 from the initial temperature to the maximum operating temperature. I.e. before the time point t2, the air pump 14 is controlled to start operating to deliver outside air into the heating assembly 11, thereby discharging the heated aerosol generated outside the housing 10.

Further, it is assumed that at time T10 in fig. 10, the heating temperature T10 of the heating assembly 11 is such that most of the moisture in the aerosol-generating article 20 has evaporated, so that near time T10, the air pump 14 is controlled to be activated to expel the aerosol generated by the aerosol-generating article 20 out of the housing 10. This avoids the problem of exhausting heated aerosol out of the housing 10 adjacent the inhalation phase, resulting in a small amount of aerosol perceived by the smoker when inhaling the first mouth, reducing the inhalation experience. In general, T10 may be from 80℃to 200 ℃.

After the heating assembly 11 enters the pumping stage, the air pump 14 is in a stopped state. The controller may acquire the electric signal generated by the detecting means, and control the air pump 14 to start or stop operating according to the electric signal generated by the detecting means.

Specifically, if the aerosol-generating article 20 is drawn, hot air in the second chamber B will flow into the aerosol-generating article 20 and air of the airflow channel C will be drawn into the second chamber B, such that the airflow channel C forms a negative pressure.

As shown in fig. 4, the detection means comprise a suction sensor 15, for example a barometric pressure sensor, a so-called microphone. The suction sensor 15 is configured to detect a change in air pressure in the air flow channel C and feed back the change in air pressure to the circuit 13 by an electrical signal. Based on this:

in another example, the puff sensor 15 generates a first electrical signal when the aerosol-generating article 20 is smoked; the controller is configured to control the air pump 14 to operate according to the first electric signal such that the air pump 14 compresses the air flowing in from the air inlet hole of the air pump 14 and then discharges the compressed air through the air outlet of the air pump 14 to increase the intake air amount of the heating assembly 11.

Thus, when the user draws in the aerosol-generating article 20, air is actively replenished into the air flow channel C by controlling the air pump 14 to activate, so that there is sufficient air to bake when heating the aerosol-generating article 20.

Because the mode of heating the aerosol-generating article 20 after heating the air is adopted, the characteristic of fast air flow is utilized, so that the aerosol generated by the heated aerosol-generating article 20 flows fast, the resistance generated by the aerosol-generating article 20 is counteracted, the suction resistance of a user is greatly reduced, and the suction relaxed feeling is improved. In addition, the portion of the heat source that heats the aerosol-generating article 20 is a stream of hot air, and the flow of air within the aerosol-generating article 20 is relatively uniform, so there is no temperature gradient difference in the heating of the various regions of the aerosol-generating article 20, and the heating of the aerosol-components generated by the heating is more uniform.

On the other hand, since the holder is capable of forming a sealing effect against the opening 101 when holding the aerosol-generating article 20; when the air pump 14 is deactivated, little external air flows into the aerosol-generating article 20, thereby causing the aerosol-generating article 20 to heat up and form natural fumes in a low-oxygen environment. When the aerosol-generating article 20 is being smoked, the air pump 14 is activated and pumps a certain amount of air into the air flow channel C, thereby reducing the resistance to the inhalation by the user, allowing the user to inhale the aerosol very smoothly, and enhancing the user's experience of smoking.

In this example, the operating parameters of the air pump 14 may be self-configurable, and the air flow (air outlet) of the air pump 14 into the heating assembly 11 may be controlled. By selecting the air pump 14 with appropriate specification parameters, sufficient air can be used for baking when heating the aerosol-generating article 20, which is beneficial to the aerosol-generating device 100 to generate the aerosol quantity required by the user, and the suction experience of the user is improved.

In further implementations, the puff sensor 15 generates a second electrical signal when the aerosol-generating article 20 is stopped from being smoked; the controller is configured to control the air pump 14 to stop operating based on the second electrical signal.

When the user does not suck the aerosol-generating article 20 or stops sucking, the air pump 14 delivers air to the air flow channel C, enabling the pressure of the air flow channel C to be made consistent with the outside. At this time, the suction sensor 15 may sense the change in the air pressure in the air flow channel C, and thus feedback the second electric signal to the controller. Based on the second electric signal, the controller controls the air pump 14 to stop operating.

Based on the foregoing aerosol-generating device 100, as shown in fig. 13, the present application further provides a control method of an aerosol-generating device, the method comprising the steps of:

s11, acquiring an electric signal generated by the detection device;

and S12, controlling the air pump 14 to work according to the electric signal generated by the detection device, so that after the air pump 14 compresses the air flowing in from the air inlet hole of the air pump 14, the air is discharged through the air outlet of the air pump 14 to increase the air inflow of the heating assembly 11.

In one example, the detection device includes a suction sensor;

the method comprises the following steps:

controlling the air pump 14 to start working according to the first electric signal generated by the suction sensor; the air pump 14 is controlled to stop operating according to the second electric signal generated by the suction sensor.

As a specific example, when the heating assembly 11 is controlled to be in the pumping stage, the air pump 14 may be controlled to start or stop operation according to an electric signal generated by the pumping sensor. I.e. the aerosol-generating article 20 is drawn in, the air pump 14 is controlled to start working; when the aerosol-generating article 20 is stopped from being sucked, the air pump 14 is controlled to stop working.

In an example, the method includes:

the air output of the air pump 14 is controlled based on the first electric signal generated by the suction sensor.

In an example, the method includes:

when the heating assembly 11 is controlled to be in the temperature raising stage, the air pump 14 is controlled to operate so as to discharge the aerosol generated from the aerosol-generating article 20 out of the housing 10.

In an example, the detecting means further comprises a temperature sensor for detecting temperature information of the heating assembly;

the method comprises the following steps:

after the heating assembly 11 is controlled to start heating, acquiring temperature information of the heating assembly 11 detected by the temperature sensor; when the temperature of the heating assembly 11 reaches a preset temperature, the air pump 14 is controlled to start working.

In an example, the detection device further comprises a timer for timing a heating time of the heating assembly;

the method comprises the following steps:

after controlling the heating assembly 11 to start heating, acquiring the timing time of the timer; when the counted time of the timer reaches the first preset time, the air pump 14 is controlled to start working.

In an example, the method includes:

when the amount of air delivered by the air pump 14 into the heating assembly 11 reaches a preset amount, or when the operation time of the air pump 14 reaches a second preset time, the air pump 14 is controlled to stop operating.

Fig. 14 is a schematic diagram of a control process of an aerosol-generating device according to an embodiment of the present application. The control process of the aerosol-generating device comprises the steps of:

s31, after the aerosol-generating article 20 is inserted into the heating chamber a, controlling the heating assembly 11 to start heating;

s32, timing the preheating time of the heating assembly 11;

s33, determining whether the preheating time of the heating assembly 11 reaches the preset time threshold, that is, is greater than or equal to the preset time threshold?

S34, if the preheating time of the heating assembly 11 reaches a preset time threshold, controlling the air pump 14 to start working so as to discharge the aerosol containing more water out of the shell 10; otherwise, continuing to execute the step S32 (step S35);

s36, controlling the heating assembly 11 to enter a suction stage;

s37, determining whether the aerosol-generating article 20 is being smoked?

S38, if the aerosol-generating product 20 is sucked, controlling the air pump 14 to work, so that the air pump 14 compresses the air flowing in from the air inlet of the air pump 14 and then discharges the air through the air outlet of the air pump 14 to increase the air inflow of the heating assembly 11; otherwise, continuing to execute the step S37 (step S39);

s40, then, it is further determined whether the aerosol-generating article 20 is stopped from being smoked, i.e. the user does not smoke the aerosol-generating article 20 or stops smoking?

S41, if the user does not suck the aerosol-generating article 20 or stops sucking, controlling the air pump 14 to stop working; otherwise, the process continues to step S38 (step S42).

It should be noted that the description and drawings of the present application show preferred embodiments of the present application, but the present application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations on the content of the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope described in the present specification; further, modifications and variations of the present utility model may occur to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be within the scope of the appended claims.

Claims

1. An aerosol-generating device, comprising:

2. An aerosol-generating device according to claim 1, wherein the heating assembly comprises:

a tubular substrate including a first end, a second end opposite the first end; at least a portion of the aerosol-generating article is removably received within the tubular substrate through the opening;

a heater formed on a surface of the tubular substrate;

a heat conductor at least partially housed within the tubular base; the heat conductor has a gap or through hole for air to pass through.

3. An aerosol-generating device according to claim 2, wherein one end of the heater is disposed adjacent the first end and the other end of the heater is disposed adjacent the second end.

4. An aerosol-generating device according to claim 2, wherein a partition is provided within the tubular substrate, the partition dividing the interior space of the substrate into a first chamber and a second chamber in fluid communication, at least part of the aerosol-generating article being removably received in the first chamber through the opening; is at least partially received in the second chamber.

5. An aerosol-generating device according to claim 4, wherein the separator has a plurality of micro-holes arranged in an array.

6. An aerosol-generating device according to claim 2, wherein the thermally conductive body is configured as a cylindrical structure having a spiral curve in cross section, or as a radial cylindrical structure.

7. An aerosol-generating device according to claim 1, wherein the holder further comprises a second receiving cavity in fluid communication with the airflow channel, the detection device being at least partially received in the second receiving cavity.

8. An aerosol-generating device according to claim 7, wherein the detection means and the air pump are arranged along a thickness direction of the housing.

9. An aerosol-generating device according to claim 1, further comprising a seal disposed between the air pump and the first receiving cavity to hermetically seal one end of the airflow passage.

10. An aerosol-generating device according to claim 1, wherein the opening is provided at a proximal end of the housing and the air pump is provided at a distal end of the housing.

11. An aerosol-generating device according to claim 1, further comprising a clip disposed proximate the opening; the grip is configured to form a seal in contact with a surface of the aerosol-generating article when the aerosol-generating article is gripped.

12. An aerosol-generating device, comprising:

the electric signal is used for controlling the air pump to work, so that the air pump compresses air flowing in from the air inlet hole and then discharges the air through the air outlet hole so as to increase the air inflow of the heating component.