WO2023134358A1

WO2023134358A1 - Aerosol generation device, control method therefor, control device, and storage medium

Info

Publication number: WO2023134358A1
Application number: PCT/CN2022/138393
Authority: WO
Inventors: 黄鹏飞; 赵书民; 韦力根
Original assignee: 深圳麦时科技有限公司
Priority date: 2022-01-14
Filing date: 2022-12-12
Publication date: 2023-07-20
Also published as: CN114376274B; CN114376274A

Abstract

An aerosol generation device, a control method therefor, a control device, and a storage medium. The aerosol generation device is used for providing an aerosol when sucked by a user, and the aerosol generation device comprises: a heating element (110), which is used for heating an aerosol forming substrate to generate an aerosol; a power supply (120), which is electrically connected to the heating element (110); a detection assembly (130), which is electrically connected to the heating element (110) and the power supply (120); and a control assembly (140), which is used for acquiring an electrical parameter of the detection assembly (130) and identify a sucking action of a user according to the electrical parameter of the detection assembly (130). The aerosol generation device is able to accurately detect a sucking action.

Description

Aerosol generating device and its control method, control device and storage medium

related application

This application claims the priority of the Chinese patent application filed on January 14, 2022 with the application number 202210044755.6, entitled "Aerosol generating device and its control method, control device and storage medium", which is hereby incorporated in its entirety as refer to.

technical field

The present application relates to the technical field of atomization, and in particular to an aerosol generating device, a control method thereof, a control device and a storage medium.

Background technique

With the development of atomization technology, aerosol atomization technology has emerged. The aerosol-forming substrate is heated by a heating element to achieve atomization and generate aerosol. For aerosol-generating devices used by inhalation, the user inhales the aerosol generated by the aerosol-generating device through a puffing action.

Some aerosol generating devices used for suction will be equipped with a recording function for the number of puffs, which can analyze usage habits, determine the remaining amount of aerosol-forming substrates, and so on. At present, a sensor is generally used to detect airflow to detect whether the user has performed a suction action, and counting is performed according to the detection result, but it is necessary to add a special sensor to detect the suction action.

Contents of the invention

Based on this, it is necessary to provide an aerosol generating device capable of accurately detecting a puff action, a control method, a control device, and a storage medium for the above-mentioned technical problems.

An aerosol-generating device for providing an aerosol when inhaled by a user, the aerosol-generating device comprising:

a heating element for heating the aerosol-forming substrate to generate said aerosol;

a power supply, electrically connected to the heating element, for outputting electric energy to the heating element to heat the heating element;

a detection component connected to the heating element and the power supply;

The control component is electrically connected with the detection component, and is used to obtain the electrical parameters of the detection component, and identify the user's puffing action according to the electrical parameters of the detection component.

In one of the embodiments, the detection component is connected between the heating element and the power supply, including: a reference resistor and a detection switch;

The first end of the detection switch is electrically connected to the power supply, the second end of the detection switch is electrically connected to the first end of the reference resistor, and the control end of the detection switch is electrically connected to the control component;

The second end of the reference resistor is electrically connected to the heating element; the electrical parameter is the voltage across the reference resistor;

The control component is used to acquire the first voltage of the first terminal of the reference resistor and the second voltage of the second terminal of the reference resistor, and identify the pumping according to the change of the first voltage and the second voltage Action; it is also used to control the detection switch to be turned on or off, so as to realize the detection mode to be turned on or off.

In one of the embodiments, the control component is used to calculate the puffing state quantity according to the first voltage and the second voltage, and at the current moment the difference between the puffing state quantity and the puffing state quantity at the previous moment When the absolute value of the value is greater than the preset threshold, it is determined that a puffing action occurs at the current moment.

In one of the embodiments, the pumping state quantity is equal to the product of the difference between the first voltage and the second voltage and the second voltage.

In one of the embodiments, the control component is further configured to update the record of the number of puffs when it is determined that a puff action occurs.

In one of the embodiments, the aerosol generating device further includes:

A power switch, the first end of the power switch is connected to the heating element, the second end of the power switch is electrically connected to the power supply, and the control end of the power switch is electrically connected to the control assembly;

The control component is used to send a PWM signal to control the power switch on and off in the heating atomization mode; it is also used to switch and control the power switch or the detection switch to be turned on, so as to realize the heating atomization mode and detection mode switch.

A control method for an aerosol generating device, the aerosol generating device is used to provide an aerosol when inhaled by a user; the aerosol generating device includes a heating element, a power supply and a detection component, the heating element for heating an aerosol-forming substrate to generate the aerosol; the detection component is electrically connected to the heating element and the power supply;

The control methods include:

Acquiring electrical parameters of the detection component;

The user's puffing action is judged according to the electrical parameters of the detection component.

In one of the embodiments, the detection component is connected between the heating element and the power supply and includes a reference resistor and a detection switch, the first end of the reference resistor is electrically connected to the power supply through the detection switch, The second end of the reference resistor is electrically connected to the heating element; the electrical parameters of the detection component include a first voltage at the first end of the reference resistor and a second voltage at the second end of the reference resistor;

The judging the user's pumping action according to the changes at both ends of the detection component includes:

calculating a pumping state quantity according to the first voltage and the second voltage;

Judging whether the absolute value of the difference between the suction state quantity at the current moment and the suction state quantity at the previous moment is greater than a preset threshold;

If it is greater than, it is determined that a suction action occurs at the current moment.

In one of the embodiments, the control method also includes:

When it is determined that a puff action occurs, the puff count record is updated.

A control device for an aerosol generating device, the aerosol generating device is used to provide an aerosol when inhaled by a user; the aerosol generating device includes a heating element, a power supply and a detection component, the heating element for heating an aerosol-forming substrate to generate the aerosol; the detection component is electrically connected to the heating element and the power supply;

The control device includes:

A parameter acquisition module, configured to acquire electrical parameters of the detection component;

The puffing action judging module is configured to judge the user's puffing action according to the electrical parameters of the detection component.

a detection component electrically connected to the heating element and the power supply;

The controller includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

Acquiring the voltage across the detection component;

The user's suction action is judged according to the changes at both ends of the detection component.

A computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

Obtain the voltage across the detection component;

The above aerosol generating device and its control method, control device and storage medium, the detection component is electrically connected to the power supply and the heating element, because when the temperature of the heating element rises, the resistance value will also increase, which in turn will make the detection component electrically connected to it electrical parameters change. As the heating time of the heating element increases, the heating temperature will tend to be stable, and the resistance of the heating element will also tend to be stable. When the aerosol generating device is inhaled by the user, the heat stored in the heating element will decrease. In turn, the resistance value of the heating element is also reduced. Therefore, according to the electrical parameters of the detection component, it can be judged whether the user has taken a puff, so that the puff action can be accurately detected to achieve accurate counting of puff times, and the cost is reduced. lower.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the traditional technology. Obviously, the accompanying drawings in the following description are only the present invention For some embodiments of the application, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a structural block diagram of an aerosol generating device in an embodiment of the present application.

FIG. 2 is a schematic diagram of a circuit structure of an aerosol generating device in another embodiment of the present application.

Fig. 3 is a schematic diagram of a circuit structure of an aerosol generating device in another embodiment of the present application.

FIG. 4 is a schematic flowchart of a control method for an aerosol generating device in an embodiment of the present application.

Fig. 5 is a structural block diagram of a control device for an aerosol generating device in an embodiment of the present application.

FIG. 6 is a schematic structural diagram of an aerosol generating device in an embodiment of the present application.

Fig. 7 is a schematic structural diagram of an aerosol generating device in another embodiment of the present application.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

It can be understood that the terms "first", "second", etc. used in this application may be used to describe different features herein, but these features are not limited by these terms. These terms only distinguish different characteristics.

It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element, or connected to the other element through an intervening element. In addition, "connection" in the following embodiments should be understood as "electrical connection", "communication connection" and the like if there is transmission of electrical signals or data between the connected objects.

When used herein, the singular forms "a", "an" and "the/the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising/comprising" or "having" etc. specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more The possibility of other features, integers, steps, operations, components, parts or combinations thereof. Meanwhile, the term "and/or" used in this specification includes any and all combinations of the related listed items.

As shown in FIG. 1 , an aerosol generating device is provided in an embodiment of the present application, and the aerosol generating device is used to provide an aerosol for the user to inhale when inhaled by the user. The aerosol generating device includes a heating element 110 , a power source 120 , a detection component 130 and a control component 140 .

Wherein, the heating element 110 is used to heat the aerosol-forming substrate to generate aerosol; the power supply 120 is electrically connected to the heating element 110, and is used to output electric energy to the heating element 110, so that the heating element 110 is heated; the detection component 130 is connected to the heating element 110 and The power supply 120 is electrically connected; the control component 140 is electrically connected with the detection component 130 and is used to obtain the electrical parameters of the detection component 130 , and identify the user's puffing action according to the electrical parameters of the detection component 130 .

The detection component 130 is electrically connected to the power supply 120 and the heating element 110 . When the temperature of the heating element 110 rises, the resistance value will also increase, which will cause the electrical parameters of the detection component 130 electrically connected to it to change. Since the heating element 110 increases with the heating time, the heating temperature will tend to be stable, and then the resistance value of the heating element 110 will also tend to be stable. When the aerosol generating device is inhaled by the user, the heat stored in the heating element 110 will decrease, which in turn causes the resistance of the heating element 110 to also decrease. Therefore, according to the electrical parameters of the detection component 130 , it can be determined whether the user has taken a puff, thereby accurately detecting the puff action.

In one embodiment, the electrical parameters of the detection component 130 may be resistance value, voltage across terminals, power, current and so on. In the embodiment of the present application, the voltage across the detection component 130 is taken as an example for illustration.

In one embodiment, the control component 140 can control the heating temperature of the heating element 110 by controlling the output power of the power supply 120 to the heating element 110 or the continuous output time, so that the heating element 110 can maintain a stable atomization gas generation temperature. The temperature of the sol. It can be understood that there is another connection path between the power supply 120 and the heating element 110 , and the power supply 120 supplies power to the heating component through this path when no detection is required.

The resistance value of the heating element 110 will change as the temperature changes, and when the temperature rises, the resistance value of the heating element 110 will also increase. The control component 140 can keep the resistance value of the detection component 130 constant by limiting the power-on time of the detection component 130 . Based on the principle of voltage division, the temperature change of the heating element 110 can be reflected by detecting the voltage change at both ends of the component 130 , and it can be determined that the user has inhaled the aerosol generating device when the temperature changes suddenly.

It should be noted that, in FIG. 1 , the specific manner in which the detection component 130 is electrically connected to the heating element 110 and the power source 120 is: the detection component 130 is connected between the heating element 110 and the power source 120 . At this time, the voltage at the end of the detection component 130 connected to the power supply 120 represents the voltage of the power supply 120 , and the voltage at the end of the detection component 130 connected to the heating element 110 depends on the resistance of the heating element 110 and the resistance of the detection component 130 . In some other embodiments, the detection component 130 is electrically connected to the heating element 110 and the power source 120 may also be: the heating element 110 is connected between the detection component 130 and the power source 120 . At this time, although the electrical connection methods are different, the voltage across the detection component 130 still depends on the voltage of the power supply 120 , the resistance of the heating element 110 and the resistance of the detection component 130 . It can be understood that, the heating element 110 and the detection component 130 may also adopt other connection manners capable of forming a voltage dividing structure.

In the above aerosol generating device, the detection component 130 is electrically connected to the power supply 120 and the heating element 110; as the heating time of the heating element 110 increases, the heating temperature will tend to be stable, and then the temperature of the heating element 110 will also tend to be stable; When the aerosol generating device is inhaled by the user, the heat stored in the heating element 110 will decrease, and then the resistance of the heating element 110 will also decrease. Therefore, according to the voltage change at both ends of the detection component 130 , it can be determined whether the user has taken a puff, so that the puff action can be accurately detected to achieve accurate counting of the number of puffs. In addition, since the addition of sensors will increase the cost of the aerosol generating device, the circuit design will be more complicated. However, in the embodiment of the present application, only by setting the detection component 130 between the heating element 110 and the power supply 120, the identification of the suction action can be realized. The circuit design Simple, while reducing the cost of the aerosol generating device.

As shown in FIG. 2 , in one embodiment, the detection component 130 is connected between the heating element 110 and the power source 120 . The detection component 130 includes: a reference resistor RS and a detection switch Q1. Wherein, the first end of the detection switch Q1 is electrically connected to the power supply, the second end of the detection switch Q1 is electrically connected to the first end of the reference resistor RS, and the control end of the detection switch Q1 is electrically connected to the control component 140; the second end of the reference resistor RS Both ends are electrically connected to the heating element 110 . The control component 140 is used to obtain the first voltage V1 of the first terminal of the reference resistor RS and the second voltage V2 of the second terminal of the reference resistor RS, and identify the pumping action according to the changes of the first voltage V1 and the second voltage V2; The component 140 is also used to control the detection switch Q1 to be turned on or off, so as to enable or disable the detection mode.

Wherein, the voltage output by the power supply 120 is VS. In this embodiment, the electrical parameters of the detection component 130 include the voltage across the reference resistor RS. When detection is required, the control component 140 controls the detection switch Q1 to be turned on. At this time, the power supply 120 provides electric energy to the reference resistor RS and the heating element 110 connected in series; the control component 140 obtains the voltage across the reference resistor RS during this process, that is, A voltage V1 and a second voltage V2, and the first voltage V1 is the output voltage of the power supply 120, so the first voltage V1 will be maintained in a relatively stable voltage range, while the second voltage V2 will be affected by the resistance of the heating element 110 The influence of the change; when the first voltage V1 is not abnormal, the second voltage V2 can be used to characterize the resistance of the heating element 110 . Therefore, through the changes of the first voltage V1 and the second voltage V2, it can be recognized whether a pumping action occurs. In one embodiment, the control component 140 acquires multiple groups of the first voltage V1 and the second voltage V2 in the detection mode, and averages the respective maximum and minimum values of the first voltage V1 and the second voltage V2 after screening out Finally, the average value of the first voltage V1 and the average value of the second voltage V2 are used to judge whether the suction action occurs, thereby reducing the detection error and improving the accuracy of recognition.

In one embodiment, if the internal resistance of the detection switch Q1 is not much different from the resistance value of the heating element 110 . The detection switch Q1 forms a series voltage divider with the reference resistor RS and the heating element. When the resistance value of the heating element 110 changes, the first voltage V1 will also change abruptly. At this time, the first voltage V1 and the second voltage V1 are used to extract When the suction action is recognized, the accuracy of the recognition can still be guaranteed.

When the detection mode needs to be turned off, the control component 140 controls the detection switch Q1 to be turned off, cutting off the branch where the reference resistor RS is located. At this time, the power supply 120 supplies power to the heating element 110 through another branch.

In an embodiment, the detection switch Q1 may be an electronic switch such as a triode, a MOS transistor, and an IGBT.

In one embodiment, the electrical parameter of the detection component 130 may also be the resistance value of the reference resistor RS, the power of the reference resistor RS or the current flowing through the reference resistor RS.

In one embodiment, the control component 140 controls the detection switch Q1 to be turned on for a preset time according to a preset period; the detection switch Q1 is turned off when the on-time of the detection switch Q1 reaches a preset time; the control component 140 obtains the first A voltage V1 and a second voltage V2. Exemplarily, the preset period may be 10 ms, and the preset duration may be 250 μs.

In one embodiment, the control component 140 is used to calculate the puff state quantity according to the first voltage V1 and the second voltage V2, and the absolute value of the difference between the puff state quantity at the current moment and the puff state quantity at the previous moment is greater than A suction action is determined to occur at a preset threshold.

The pumping state quantity is a physical quantity used to characterize the voltage change at both ends of the reference resistor RS. The preset threshold value is a reference value reflecting the change of the voltage at both ends of the reference resistor RS when no pumping action occurs and the heating element 110 is in a heating state. If the determination of the pumping action is performed directly through the first voltage V1 and the second voltage V2, there may be a large error; and due to the power of the power supply 120 or other reasons, there may be abnormal changes in the first voltage V1 and the second voltage V2, Therefore, the pumping state quantity can be calculated according to the first voltage V1 and the second voltage V2, and the absolute value of the difference between the current moment and the previous moment is calculated. If the absolute value of the difference between the pumping state quantity is greater than the preset The threshold value determines that a suction action occurs at the current moment. Exemplarily, the pumping state quantity may be the difference between the first voltage V1 and the second voltage V2, or the rate of change of the difference between the first voltage V1 and the second voltage V2. It can be understood that the current moment and the last moment refer to two consecutive detected moments, which do not necessarily have continuity in time. Exemplarily, the preset threshold may be 0.08.

In one embodiment, the pumping state quantity is equal to the product of the difference between the first voltage V1 and the second voltage V2 and the second voltage V2. Exemplarily, assuming that the pumping state quantity is K, then K=V2(V1-V2).

Table 1 shows in an embodiment, within a puffing period, the puffing state quantity K calculated by the MCU according to the collected first voltage V1 and the second voltage V2, and the puffing state at two adjacent moments The absolute value of the difference in quantity ⊿K changes with time.

Table 1

Specifically, when no pumping action occurs, ⊿K is stable below a preset reference value, such as 0.01. And after a pumping action, the resistance value of the heating element will gradually increase back to the steady-state value with heating, during which ⊿K may remain higher than the preset reference value. Therefore, after it is determined that the puffing action occurs, it needs to be recognized that ⊿K is lower than the preset reference value and then rises to exceed the preset threshold again before it is determined that the puffing action is occurring again. For example, at t=3 in Table 1, ⊿K exceeds the preset threshold of 0.08, and it is determined that a suction action has occurred at this time; but at t=4, ⊿K is still greater than the preset threshold of 0.08, but at this time the heating element The resistance value is constantly changing, and it cannot be determined that the second puffing action has occurred. It should be judged that the puffing action has occurred again when ⊿K exceeds the preset threshold of 0.08 after time t=7.

In one embodiment, the control component 140 is further configured to update the record of the number of puffs when it is determined that a puff occurs.

When the control component 140 determines that a puff action occurs, it adds 1 to the number of puffs, and updates the record of the number of puffs.

As shown in FIG. 3 , in one embodiment, the aerosol generating device further includes a power switch Q2. The first end of the power switch Q2 is connected to the heating element 110, the second end of the power switch Q2 is electrically connected to the power supply 120, and the control end of the power switch Q2 is electrically connected to the control assembly 140; the control assembly 140 is used for heating and atomizing mode The PWM signal is sent to control the on-off of the power switch Q2; it is also used to switch and control the power switch Q2 or the detection switch Q1 to be turned on, so as to realize the switching between the heating atomization mode and the detection mode.

The control component 140 controls the on-off of the power switch Q2 by sending a PWM signal, so as to realize the power control of the heating element 110 , that is, to realize the temperature control of the heating element 110 . When the aerosol generating device is turned on or triggered to be heated, the control component 140 outputs a PWM signal to the power switch Q2 to control its on or off, so as to adjust the power output to the heating element 110 to achieve temperature control, specifically , the temperature control can be controlled according to the preset temperature curve. When it is necessary to switch to the detection mode to detect the suction action, the control component 140 controls the power switch Q2 to turn off, and controls the detection switch Q1 to turn on; after the detection is completed, the control component 140 controls the detection switch Q1 to turn off, and continues to generate PWM signals Control the work of the power switch Q2.

This embodiment can flexibly switch between the detection mode and the heating atomization mode, so as to avoid affecting the normal operation of the aerosol generating device due to detection.

As shown in Figure 4, the embodiment of the present application also provides a control method for an aerosol generating device, which is described by taking a control component applied to an aerosol generating device as an example, and the control method includes:

Step 410, obtaining electrical parameters of the detection component;

Step 420, judging the user's puffing action according to the electrical parameters of the detection component.

In one embodiment, the detection assembly is connected between the heating element and the power supply, the detection assembly includes a reference resistor and a detection switch, the first end of the reference resistor is electrically connected to the power supply through the detection switch, and the second end of the reference resistor is electrically connected to the heating element ; The voltage at both ends of the detection component includes a first voltage at the first end of the reference resistor and a second voltage at the second end of the reference resistor.

In one embodiment, the step of judging the user's pumping action according to the changes at both ends of the detection component includes:

calculating the pumping state quantity according to the first voltage and the second voltage;

In one embodiment, the pumping state quantity is equal to the product of the difference between the first voltage and the second voltage and the second voltage.

In one embodiment, the control method also includes:

For the specific limitations of the control method used for the aerosol generating device, please refer to the above definition for the aerosol generating device, and details will not be repeated here.

It should be understood that although the various steps in the flow chart of FIG. 4 are displayed sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in FIG. 4 may include multiple steps or stages, these steps or stages are not necessarily executed at the same time, but may be executed at different times, and the execution order of these steps or stages is also It is not necessarily performed sequentially, but may be performed alternately or alternately with other steps or at least a part of steps or stages in other steps.

In one embodiment, as shown in FIG. 5 , a control device 500 for an aerosol generating device is provided, the control device comprising:

A parameter acquisition module 510, configured to acquire electrical parameters of the detection component;

The puffing action judging module 520 is configured to judge the user's puffing action according to the electrical parameters of the detection component.

In one embodiment, the suction action judging module 520 includes:

a calculation unit, configured to calculate the pumping state quantity according to the first voltage and the second voltage;

A judging unit, configured to judge whether the absolute value of the difference between the suction state quantity at the current moment and the suction state quantity at the previous moment is greater than a preset threshold;

The puff determination unit is configured to determine that a puff action occurs at the current moment when the absolute value of the difference between the puff state quantity at the current moment and the puff state quantity at the previous moment is greater than a preset threshold.

In one embodiment, the control device also includes:

The counting module is used to update the record of the number of puffs when it is determined that a puff occurs.

For the specific limitations of the control device used for the aerosol generating device, please refer to the above-mentioned definition of the aerosol generating device, which will not be repeated here. Each module in the above-mentioned control device can be fully or partially realized by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.

In one embodiment, there is provided an aerosol-generating device for providing an aerosol when inhaled by a user; said aerosol-generating device comprising:

a power supply electrically connected to the heating element;

Acquiring electrical parameters of the detection component;

In one embodiment, the following steps are also implemented when the processor executes the computer program:

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

Acquiring electrical parameters of the detection component;

In one embodiment, when the computer program is executed by the processor, the following steps are also implemented:

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above-mentioned embodiments can be completed by instructing related hardware through computer programs, and the computer programs can be stored in a non-volatile computer-readable memory In the medium, when the computer program is executed, it may include the processes of the embodiments of the above-mentioned methods. Wherein, any references to memory, storage, database or other media used in the various embodiments provided in the present application may include at least one of non-volatile memory and volatile memory. Non-volatile memory may include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

As shown in Figure 6, in one embodiment, the aerosol generating device can be a heat-not-burn electronic cigarette, and the aerosol-forming substrate can be a solid aerosol-forming substrate 200, by inserting the solid aerosol-forming substrate 200 into the aerosol In the generating device, heating generates an aerosol for inhalation by a user.

As shown in Figure 7, in one embodiment, the aerosol generating device can use a liquid aerosol-forming substrate for atomization, the aerosol generating device is provided with a liquid storage chamber 150 for containing the aerosol-forming substrate, and the heating element passes through The aerosol-forming substrate in the liquid storage chamber is heated to generate an aerosol for inhalation by the user.

In the description of this specification, descriptions referring to the terms "some embodiments", "other embodiments", "ideal embodiments" and the like mean that specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in this specification. In at least one embodiment or example of the application. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above-mentioned embodiments only represent several implementation modes of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the patent for the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims

An aerosol-generating device for providing an aerosol when inhaled by a user, the aerosol-generating device comprising:

a heating element for heating the aerosol-forming substrate to generate said aerosol;

a power supply, electrically connected to the heating element, for outputting electric energy to the heating element to heat the heating element;

a detection component electrically connected to the heating element and the power supply;

The control component is electrically connected with the detection component, and is used for obtaining the electrical parameters of the detection component, and judging the user's puffing action according to the change of the electrical parameters of the detection component.
The aerosol generating device according to claim 1, wherein the detection component is connected between the heating element and the power supply for voltage division with the heating element, and the detection component includes: a reference resistor and a detection switch ;

The first end of the detection switch is electrically connected to the power supply, the second end of the detection switch is electrically connected to the first end of the reference resistor, and the control end of the detection switch is electrically connected to the control component;

The second end of the reference resistor is electrically connected to the heating element;

The electrical parameter is a voltage across the reference resistor, and the control component is configured to acquire a first voltage at a first terminal of the reference resistor and a second voltage at a second terminal of the reference resistor, and according to the The change of the first voltage and the second voltage identifies the pumping action; it is also used to control the detection switch to be turned on or off, so as to realize the detection mode to be turned on or off.
The aerosol generating device according to claim 2, wherein the control component is used to calculate the puff state quantity according to the first voltage and the second voltage, and compare the puff state quantity at the current moment with the puff state quantity at the previous moment. When the absolute value of the difference in suction state quantity is greater than a preset threshold, it is determined that a puff action occurs at the current moment.
The aerosol generating device according to claim 3, wherein the puff state quantity is equal to a product of a difference between the first voltage and the second voltage and the second voltage.
The aerosol generating device according to claim 3, wherein the control component is further configured to update the record of the number of puffs when it is determined that a puff has occurred.
The aerosol-generating device according to any one of claims 2 to 5, wherein the aerosol-generating device further comprises:

A power switch, the first end of the power switch is connected to the heating element, the second end of the power switch is electrically connected to the power supply, and the control end of the power switch is electrically connected to the control assembly;

The control component is used to send a PWM signal to control the power switch to be turned on and off in the heating atomization mode; it is also used to switch and control the power switch or the detection switch to be turned on, so as to realize the heating atomization mode and the switch between the detection modes described above.
A control method for an aerosol generating device, the aerosol generating device is used to provide an aerosol when inhaled by a user; the aerosol generating device includes a heating element, a power supply and a detection component, the heating element for heating an aerosol-forming substrate to generate the aerosol; the detection component is electrically connected to the heating element and the power supply;

The control methods include:

Acquiring electrical parameters of the detection component;

The user's puffing action is judged according to the electrical parameters of the detection component.
The control method according to claim 7, wherein the detection component is connected between the heating element and the power supply, and includes a reference resistor and a detection switch, and the first end of the reference resistor is electrically connected through the detection switch. Connect the power supply, the second end of the reference resistor is electrically connected to the heating element; the electrical parameters of the detection component include the first voltage at the first end of the reference resistor and the first voltage at the second end of the reference resistor Two voltages;

The judging the user's pumping action according to the changes at both ends of the detection component includes:

calculating a pumping state quantity according to the first voltage and the second voltage;

Judging whether the absolute value of the difference between the suction state quantity at the current moment and the suction state quantity at the previous moment is greater than a preset threshold;

If it is greater than, it is determined that a suction action occurs at the current moment.
The control method according to claim 8, wherein the pumping state quantity is equal to a product of a difference between the first voltage and the second voltage and the second voltage.
The control method according to claim 8, wherein the control method further comprises:

When it is determined that a puff action occurs, the puff count record is updated.
A control device for an aerosol generating device, the aerosol generating device is used to provide an aerosol when inhaled by a user; the aerosol generating device includes a heating element, a power supply and a detection component, the heating element for heating an aerosol-forming substrate to generate the aerosol; the detection component is electrically connected to the heating element and the power supply;

The control device includes:

A parameter acquisition module, configured to acquire electrical parameters of the detection component;

The puffing action judging module is configured to judge the user's puffing action according to the electrical parameters of the detection component.
An aerosol-generating device for providing an aerosol when inhaled by a user, the aerosol-generating device comprising:

a heating element for heating the aerosol-forming substrate to generate said aerosol;

a power supply, electrically connected to the heating element, for outputting electric energy to the heating element to heat the heating element;

a detection component electrically connected to the heating element and the power supply;

The controller includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the method according to any one of claims 7 to 10 when executing the computer program.
A computer-readable storage medium on which a computer program is stored, wherein the computer program implements the steps of the method according to any one of claims 7 to 10 when executed by a processor.