WO2020216198A1

WO2020216198A1 - Electronic cigarette and control method therefor

Info

Publication number: WO2020216198A1
Application number: PCT/CN2020/085750
Authority: WO
Inventors: 邱伟华
Original assignee: 常州市派腾电子技术服务有限公司
Priority date: 2019-04-25
Filing date: 2020-04-21
Publication date: 2020-10-29
Also published as: CN111838755A

Abstract

An electronic cigarette and a control method therefor. The electronic cigarette comprises a gas flow detection chip (U6) and a processor (U1); the gas flow detection chip (U6) comprises a heating element (11) and a temperature sensing element (12) used for sensing the temperature around the heating element (11); the heating element (11) and the temperature sensing element (12) are disposed in an aerosol outlet channel (10) of the electronic cigarette; a signal output end (63) of the gas flow detection chip (U6) is electrically connected to the processor (U1); a voltage signal output from the signal output end (63) is generated according to a sensing signal of the temperature sensing element (12); the processor (U1) is used for determining, according to the voltage signal, the amount of aerosol atomized by the electronic cigarette in a unit time. Thus, a user can learn about the amount of aerosol of the electronic cigarette in a unit time, the current problem of difficulty for an electronic cigarette user to accurately control the inhalation amount is solved, and the effect of assisting the user in controlling the inhalation is achieved.

Description

Electronic cigarette and its control method

Technical field

The invention relates to the technical field of simulated smoking, in particular to an electronic cigarette and a control method thereof.

Background technique

As a substitute for tobacco products, electronic cigarettes are becoming more and more popular in the market due to their portability and large amount of smoke to a certain extent.

Currently, e-cigarette users mainly judge their daily smoking volume based on their own feelings to further determine whether to continue smoking and control the daily smoking volume. However, there are errors in the subjective judgment of e-cigarette users, and may even have large errors, which makes it difficult for e-cigarette users to accurately control the daily puffing volume.

Summary of the invention

In order to understand the current problem of electronic cigarette users that it is difficult to accurately control the amount of smoking, an embodiment of the present invention provides an electronic cigarette and a control method thereof. The technical solution is as follows:

In a first aspect, an electronic cigarette is provided. The electronic cigarette includes a gas flow detection chip and a processor, wherein:

The gas flow detection chip includes a heating element and a temperature sensing element for sensing the temperature around the heating element, and the heating element and the temperature sensing element are arranged in the smoke outlet channel of the electronic cigarette;

The signal output terminal of the gas flow detection chip is electrically connected to the processor, and the voltage signal output from the signal output terminal is generated according to the sensing signal of the temperature sensing element;

The processor is configured to determine the amount of smoke atomized by the electronic cigarette in a unit time according to the voltage signal.

Optionally, the gas flow detection chip includes a first power receiving terminal, a second power receiving terminal, and the signal output terminal, wherein:

The first power receiving end is electrically connected to the battery assembly in the electronic cigarette, and the voltage received by the first power receiving end is used as an internal reference voltage;

The second power receiving end is electrically connected to the battery assembly, and the voltage received by the second power receiving end is provided to the heating element.

Optionally, the electronic cigarette further includes a step-down chip, and the step-down chip includes a third power receiving terminal, a power output terminal, and an enabling terminal, wherein:

The third power receiving end is connected to the positive electrode of the battery assembly in the electronic cigarette;

The first power receiving terminal is electrically connected to the power output terminal, and the second power receiving terminal is electrically connected to the power output terminal;

The enable terminal is connected with the enable control pin of the processor.

Optionally, the electronic cigarette further includes a first resistor, a second resistor, a third resistor, and a voltage regulator tube, wherein:

The first end of the first resistor is connected to the output end of the power supply, the second end of the first resistor is electrically connected to the input end and the output end of the voltage regulator tube, respectively, and the first end of the first resistor The two ends are connected to the first power receiving end through a second resistor;

The first power receiving end is grounded through the third resistor.

Optionally, the electronic cigarette further includes a prompt component for prompting the amount of smoke, and the prompt component includes at least one of an LED light component, a display screen, a vibration motor, a buzzer, and a voice prompt module;

The anode of each LED lamp in the LED lamp assembly is electrically connected with the battery assembly, and the cathode of each LED lamp is connected with one LED lamp control pin of the processor.

Optionally, the electronic cigarette further includes an electronic switch and an atomizer, and the electronic switch includes a control end, a first passage end, and a second passage end, wherein:

The control terminal of the electronic switch is connected with the output control pin of the processor;

The first passage end is electrically connected to the positive electrode of the battery assembly, and the second passage end is electrically connected to the atomizer;

The processor is used to control the switch of the electronic switch to control the output power of the atomizer, thereby controlling the amount of smoke generated by the atomizer.

Optionally, the electronic cigarette further includes an amplifier, and the amplifier includes an inverting input terminal and an output terminal, wherein:

The inverting input terminal is connected to the signal output terminal of the gas flow detection chip;

The output terminal is electrically connected with the signal receiving terminal of the processor.

Optionally, the inverting input terminal is grounded through a fourth resistor, the inverting input terminal is connected to the output terminal through a fifth resistor, and the inverting input terminal is connected to the output terminal through a capacitor;

The output terminal is connected to the signal receiving terminal of the processor through a sixth resistor.

In a second aspect, an electronic cigarette control method is provided. The method is applied to the electronic cigarette according to the first aspect and any optional implementation of the first aspect, and the method includes:

In the process of atomizing the electronic cigarette, acquiring the voltage signal output by the gas flow detection chip;

The amount of smoke atomized by the electronic cigarette per unit time is determined according to the voltage signal.

Optionally, after determining the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal, the method further includes:

Obtaining a reference parameter according to the amount of smoke, where the reference parameter includes at least one of the amount of smoke, nicotine intake, cumulative puff, and cumulative number of puffs;

The prompt component is used to display the reference parameter.

Optionally, after obtaining the reference parameter according to the amount of smoke, the method further includes:

Compare any reference parameter with the corresponding reasonable use range;

When the specific reference parameter is lower than the lower limit of the corresponding reasonable use range, the output power of the atomizer is increased, and the specific reference parameter includes at least one of smoke amount and nicotine intake; and/or,

When any reference parameter is higher than the upper limit of the corresponding reasonable use range, the output power of the atomizer is reduced.

The beneficial effects brought about by the technical solutions provided by the embodiments of the present invention are:

By providing an electronic cigarette, the electronic cigarette includes a gas flow detection chip and a processor, wherein: the gas flow detection chip includes a heating element and a temperature sensing element for sensing the temperature around the heating element, the heating element and the temperature sensing element Set in the smoke exit channel of the electronic cigarette; the signal output end of the gas flow detection chip is electrically connected to the processor, and the voltage signal output from the signal output end is generated according to the sensing signal of the temperature sensing element; the processor is used for The voltage signal determines the amount of smoke that the e-cigarette atomizes in a unit of time; enables e-cigarette users to know the amount of smoke per unit of time, which solves the problem of current e-cigarette users that it is difficult to accurately control the amount of smoking; it assists users in controlling their smoking Effect.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings may be obtained based on these drawings without creative work.

Fig. 1 is a schematic diagram showing the connection of some components in an electronic cigarette according to an exemplary embodiment of the present invention;

Figure 2 is a schematic diagram of a smoke exit passage provided in an embodiment of the present invention;

3 is a schematic diagram of the connection of the gas flow detection chip and the amplifier provided in an embodiment of the present invention;

4 is a schematic diagram of the connection of a step-down chip provided in an embodiment of the present invention;

5 is a schematic diagram of the pins of a processor provided in an embodiment of the present invention;

6 is a schematic diagram of the connection of the electronic switch Q3 provided in an embodiment of the present invention;

Fig. 7 is a method flowchart of an electronic cigarette control method provided in an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram showing the connection of some components in an electronic cigarette according to an exemplary embodiment of the present invention. As shown in Figure 1, the electronic cigarette includes a gas flow detection chip U6 and a processor U1, where:

1 and 2, the gas flow detection chip U6 includes a heating element 11 and a temperature sensing element 12 for sensing the surrounding temperature of the heating element 11. The heating element 11 and the temperature sensing element 12 are arranged in the smoke of the electronic cigarette In channel 10; the signal output terminal 63 of the gas flow detection chip U6 is electrically connected to the processor U1, and the voltage signal output from the signal output terminal 63 is generated according to the sensing signal of the temperature sensing element 12; the processor U1 is used for The voltage signal determines the amount of smoke produced by the smoke channel 10 per unit time, that is, the amount of smoke atomized by the electronic cigarette per unit time.

The smoke outlet channel 10 is a channel through which the smoke atomized by the atomizer in the electronic cigarette flows to the outside. The smoke outlet channel 10 is connected to the atomization cavity and the cigarette holder in the electronic cigarette, and the air flow rate of the smoke outlet channel 10 per unit time Is the amount of smoke, that is, the amount of smoke is the total amount of smoke produced by the electronic cigarette in a unit time; the gas flow detection chip U6 works during the atomization of the electronic cigarette, and the gas flow detection chip U6 in the working state heats up The element 11 generates heat; when the smoke generated by the atomization cavity flows to the cigarette holder, an airflow is generated. The airflow will take away the heat around the heating element 11 and change the thermal distribution around the heating element 11. The temperature around the heating element 11 is negatively related to the gas flow rate ( That is, the higher the gas flow rate, the lower the temperature around the heating element 11); therefore, the gas flow detection chip U6 can determine the air flow velocity according to the sensing signal of the temperature sensor 12, and then further determine the smoke outlet channel 10 according to the air flow velocity. The amount of smoke in a unit time is output from the signal output terminal 63 to indicate a voltage signal indicating the amount of smoke in the smoke channel 10 in a unit time.

Optionally, the temperature sensing element 12 in the gas flow detection chip U6 may be an NTC (English: Negative Temperature Coefficient) resistor, and the heating element 11 may be a heating wire, a heating sheet, etc., which is not specifically limited in this embodiment.

In summary, the processor in the electronic cigarette provided by the embodiment of the present invention can determine the amount of smoke atomized by the electronic cigarette per unit time, so that the user of the electronic cigarette can know the amount of smoke per unit time, which solves the problem of the current electronic cigarette users It is difficult to accurately control the amount of suction; the effect of assisting the user in controlling the suction is achieved.

Optionally, as shown in FIG. 3, the gas flow detection chip U6 includes a first power receiving terminal 62, a second power receiving terminal 64, and a signal output terminal 63, wherein: the first power receiving terminal 62 and the battery assembly in the electronic cigarette Connected, the voltage received by the first power receiving terminal 62 is used as the internal reference voltage; the second power receiving terminal 64 is electrically connected to the battery assembly, and the voltage received by the second power receiving terminal 64 is provided to the heating element 11. Optionally, the second power receiving end 64 is grounded through a capacitor C9.

Optionally, the first power receiving terminal 62 is the DWN- pin of the gas flow detection chip U6, the second power receiving terminal 64 is the HTR1 pin of the gas flow detection chip U6, and the signal output terminal 63 of the gas flow detection chip U6 is UP-pin of gas flow detection chip U6. Optionally, the DWN+ pin of the gas flow detection chip U6 is connected to its UP+ pin, the HTR2 pin is grounded, and the NC pin is grounded.

Optionally, the electronic cigarette further includes a step-down chip U5. As shown in FIG. 4, the step-down chip U5 includes a third power receiving terminal 41, a power output terminal 42, and an enabling terminal 43, wherein: the third power receiving terminal 41 and The positive pole of the battery assembly VCC_BAT is connected; the first power receiving terminal 62 is electrically connected to the power output terminal 42, and the second power receiving terminal 64 is electrically connected to the power output terminal 42; please refer to FIG. 4 and FIG. 5, the enable terminal 43 and the processing The enable control pin 22 of the device U1 is connected and grounded through the resistor R41. Among them, the step-down chip U5 steps down the 5V voltage provided by the battery assembly to 2.8V, and the power output terminal 42 outputs a stable 2.8V voltage.

Optionally, the third power receiving terminal 41 is grounded through the capacitor C15, the power output terminal 42 is grounded through the capacitor C14, the ground pin of the step-down chip U5 (the GND pin shown in Figure 4) is grounded, and the ground pin of the step-down chip U5 is grounded. The bypass pin (the BP pin shown in Figure 4) is grounded; the enable terminal 43 is grounded through a resistor R41.

Optionally, please refer to Figure 3. The electronic cigarette further includes a first resistor R33, a second resistor R29, a third resistor R31 and a voltage regulator tube U8, wherein: the first end of the first resistor R33 is connected to the power output terminal 42 , The second end of the first resistor R33 is electrically connected to the input end 81 and the output end 82 of the voltage regulator tube U8, respectively, and the second end of the first resistor R33 is connected to the first power receiving end 62 through the second resistor R29; A power receiving terminal 62 is grounded through the third resistor R31.

Optionally, the 2.8V voltage output by the power output terminal 42 of the step-down chip U5 is provided to the input terminal 81 of the Zener tube U8 through the first resistor R33, and the output terminal 82 of the Zener tube U8 outputs a stable 2.5V voltage. The 2.5V voltage output by the pressure tube U8 is supplied to the first power receiving end 62 of the gas flow detection chip U6 as an internal reference voltage through the partial pressure of the second resistor R29 and the third resistor R31.

It should be noted that: please refer to Figure 3 and Figure 4, the 2.8V voltage output by the power output terminal 42 of the step-down chip U5 also supplies power to the gas flow detection chip U6 and/or the amplifier U7. Specifically, the power output terminal 42 of the buck chip U5 is electrically connected to the second power receiving terminal 64 of the gas flow detection chip U6, and the power output terminal 42 of the buck chip U5 is electrically connected to the fourth power receiving terminal 73 of the amplifier U7.

Optionally, still referring to FIG. 3, the electronic cigarette further includes an amplifier U7. The amplifier U7 includes an inverting input terminal 71, an output terminal 72 and a fourth power receiving terminal 73, wherein: the inverting input terminal 71 and the gas flow detection chip U6 The signal output terminal 63 is connected, the inverting input terminal 71 is grounded through the capacitor C10; the output terminal 72 is electrically connected to the signal receiving terminal of the processor U1, and the fourth power receiving terminal 73 is electrically connected to the power output terminal 42 of the step-down chip U5 to Receive a voltage of 2.8V. Among them, the amplifier U7 amplifies the voltage signal output by the signal output terminal 63 of the gas flow detection chip U6 and provides it to the signal receiving terminal 23 of the processor U1. The processor U1 determines the smoke channel according to the voltage signal received by the signal receiving terminal 23 10 The amount of smoke in the air flow per unit time is obtained.

Optionally, the fourth power receiving terminal 73 is grounded through a capacitor C18, the inverting input terminal 71 is grounded through a fourth resistor R35, the inverting input terminal 71 is connected to the output terminal 72 through a fifth resistor R34, and the inverting input terminal 71 is connected to The capacitor C16 is connected to the output terminal 72; the output terminal 72 is connected to the signal receiving terminal 23 of the processor U1 through the sixth resistor R36, one end of the sixth resistor R36 is electrically connected to the output terminal 72, and the other end of the sixth resistor R36 is connected to The signal receiving end 23 of the processor U1 is connected and grounded through a capacitor C17.

After the e-cigarette determines the amount of smoke in the smoke channel per unit time, it can help e-cigarette users to control their smoking in at least one of the following ways:

In the first type, the electronic cigarette also includes a prompt component for prompting the amount of smoke in the smoke outlet channel per unit time, and the prompt component includes at least one of an LED light component, a display screen, a vibration motor, a buzzer, and a voice prompt module In this way, by using the prompt component to display the amount of smoke, the user of the electronic cigarette can accurately know, so that the user can control his own puffing. For example, the electronic cigarette can use the display screen to directly display the amount of smoke in the smoke channel per unit time, or use the voice prompt module to voice broadcast the amount of smoke in the smoke channel per unit time.

In this application, an electronic cigarette is illustrated by using an LED lamp assembly as a reminder assembly, which can control the number of LED lights in the LED lamp assembly to indicate the amount of smoke in the smoke channel per unit time. The specific implementation may be: calculating the quotient of the smoke amount and the reference amount to obtain the first value; if the first value is less than the number of LED lights in the LED lamp assembly, then lighting the LED lights of the first number in the LED lamp assembly; if When the first value reaches the number of LED lamps in the LED lamp assembly, all LED lamps in the LED lamp assembly are controlled to light up. Among them, the reference quantity can be set by the developer or customized by the user. The reference quantity is the amount of smoke represented by each LED light.

Taking the reference amount of 10 mg as an example, if the amount of smoke determined by the processor is 10 mg, 1 LED light is turned on; if the amount of smoke determined by the processor is 25 mg, 2 LED lights are turned on.

Optionally, the LED light assembly includes only one LED indicator, and the brightness of the LED indicator is used to indicate the amount of smoke of the electronic cigarette; the LED indicator includes a plurality of brightness levels, each of which corresponds to the amount of smoke A range of values. The specific implementation may be: obtaining the amount of smoke in the smoke channel per unit time; determining the brightness level corresponding to the value interval of the amount of smoke; controlling the LED light to light up according to the brightness level. Optionally, the brightness of the LED indicator is positively correlated with the amount of smoke in the smoke outlet channel per unit time, and the difference between the upper limit and the lower limit of the value interval corresponding to each brightness level is the second value, The second value can be set by the developer or customized by the user. For example, the developer can determine the quotient of the maximum amount of smoke that an e-cigarette can atomize per unit time and the number of brightness levels. For example, the second value can be 10mg.

Second, the electronic cigarette also includes a reminder component for reminding the nicotine intake per unit time. The e-cigarette can determine the nicotine intake per unit time based on the amount of smoke in the smoke outlet channel per unit time and the nicotine content in the e-cigarette liquid. Among them, the realization of prompting the nicotine content by the prompting component can refer to the realization of prompting the amount of smoke in the smoke exit channel per unit time, which will not be repeated here.

Third, e-cigarettes also count the cumulative number of puffs and/or cumulative puffs in the current statistical period. Among them, the statistical period can be set by the developer or customized by the user. For example, the statistical period can be one day or one week; the prompt component is used to display the cumulative number of puffs or cumulative puffs in the statistical period. For details, please refer to the prompt for smoking The realization of the amount of smoke in the channel per unit time will not be repeated here.

Among them, the electronic cigarette in this application can determine the airflow change in the smoke channel according to the voltage signal of the gas flow detection chip, and determine whether the e-cigarette user smokes once according to the airflow change; count the number of puffs of the electronic cigarette user in each statistical period Get the cumulative number of suction ports in the statistical period. For example, when the electronic cigarette detects that the airflow in the smoke outlet channel is from zero to time, it is determined that the user of the electronic cigarette takes a puff and the cumulative number of puffs is updated. The e-cigarette can also determine whether the e-cigarette user smokes once according to the amount of smoke per unit time; for example, if the amount of smoke in any unit time is greater than a predetermined value (for example, a value equal to or close to 0), and the previous unit If the amount of smoke within a period of time is less than or equal to the predetermined value, the e-cigarette user is determined to take a puff; in this application, the e-cigarette can also obtain the cumulative amount of smoke in the statistical period by counting the total amount of smoke in each unit time in the current statistical period. Suction.

The fourth type is to set up a display screen on the electronic cigarette, and use the display screen to prompt reference parameters. The reference parameters include the amount of smoke in the smoke outlet channel per unit time, the cumulative number of puffs in the statistical period, the nicotine intake, and the cumulative smoking At least one of the suction capacity.

Optionally, an alarm threshold can be set for each reference parameter; when any of the above reference parameters reaches the corresponding alarm threshold, the motor can be controlled to vibrate or the buzzer can be controlled to alarm to remind the user of excessive suction.

In actual implementation, any one or more of the above four methods can be used to prompt, so that the user of the electronic cigarette can better control the smoking.

The anode of each LED lamp in the LED lamp assembly involved in this application is electrically connected to the battery assembly, and the cathode of each LED lamp is connected to the LED lamp control pin of the processor; the processor is connected to the LED lamp through the LED The output level of the lamp control pin is used to control the on and off of the LED lamp.

Fifth, the limit threshold can be set for each reference parameter. When any reference parameter reaches the corresponding limit threshold, the electronic cigarette reduces the output power of the atomizer; the limit threshold corresponding to each reference parameter can be set by the developer, It can also be customized by users according to their own smoking cessation needs. Among them, in order to prevent excessive smoke from damaging human health, such as causing users to be over-excited, dizzy, etc., developers can set the limit threshold corresponding to the smoke volume. As each user's tolerance to nicotine is different, it can be counted as harmful to human health. The average value of the minimum amount of smoke is used as the limit threshold corresponding to the amount of smoke, for example, it may be 20 mg.

Optionally, please refer to Figure 6. The electronic cigarette further includes an electronic switch Q3 and an atomizer (not shown in the figure). The electronic switch Q3 includes a control terminal 31, a first passage end 32, and a second passage end 33, wherein: The control terminal 31 of the electronic switch Q3 is connected to the output control pin 24 of the processor U1; the first channel terminal 32 is electrically connected to the positive electrode VCC_BAT of the battery assembly, and the second channel terminal 33 is electrically connected to the atomizer; the processor U1, Used to control the switch of the electronic switch Q3 to control the output power of the atomizer, thereby controlling the amount of smoke produced by the atomizer. Specifically, the processor U1 outputs a PWM signal from the output control pin 24 to control the conduction time of the electronic switch Q3. The conduction time of the electronic switch Q3 determines the voltage supplied to the atomizer, thereby changing the atomization. The output power of the device realizes the adjustment of the amount of smoke.

Please refer to FIG. 7, which shows a method flowchart of an electronic cigarette control method provided by an embodiment of the present invention. The electronic cigarette control method is applied to the above electronic cigarette, and the electronic cigarette control method may include:

Step 710: Obtain a voltage signal output by the gas flow detection chip during the atomization process of the electronic cigarette.

Step 720: Determine the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal.

In summary, the method provided by the embodiment of the present invention obtains the voltage signal output by the gas flow detection chip during the atomization process of the electronic cigarette; according to the voltage signal, it is determined that the electronic cigarette is atomized per unit time The amount of smoke: Allows e-cigarette users to know the amount of smoke per unit time, enhances the smoker’s smoking experience, and solves the current problem that e-cigarette users are difficult to accurately control the amount of smoking; it achieves the effect of assisting users to control their smoking.

Optionally, a reference parameter is obtained according to the amount of smoke, where the reference parameter includes at least one of the amount of smoke, nicotine intake, cumulative puffing amount, and cumulative puffing number; the reference parameter is displayed using a prompt component.

Optionally, after step 720, compare any reference parameter with the corresponding reasonable use range; when the specific reference parameter is lower than the lower limit of the corresponding reasonable use range, increase the output power of the atomizer, and the specific reference parameter Including at least one of the amount of smoke and nicotine intake; and/or, when any reference parameter is higher than the upper limit of the corresponding reasonable use range, the output power of the atomizer is reduced.

Among them, the reasonable use range corresponding to each reference parameter can be set by the developer or customized by the user.

When the amount of smoke produced per unit time is lower than the lower limit of the corresponding reasonable use range, the experience of e-cigarette use is poor, and it is difficult to meet the smoking needs of e-cigarette users; the nicotine intake per unit time is lower than Corresponding to the lower limit of the reasonable use range, the e-cigarette has a poor user experience, and it is difficult to meet the smoking needs of e-cigarette users.

When any reference parameter is higher than the upper limit of the corresponding reasonable use range, the e-cigarette user smokes too much, and the e-cigarette user reduces the output power of the atomizer to assist in reducing the e-cigarette user's smoking volume.

An embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores one or more instructions, and the one or more instructions are implemented when executed by a processor in an electronic cigarette The electronic cigarette control method involved in any of the above embodiments.

The electronic cigarette in the present invention may include a processor and a memory, the processor is used to execute computer program instructions to complete various processes and methods of the processor, the memory is used to store program instructions, the processor can be implemented by executing the program instructions The electronic cigarette control method involved in any of the above embodiments.

The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the defined "first" and "second" features may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

Those of ordinary skill in the art can understand that all or part of the steps in the foregoing embodiments can be implemented by hardware, or by a program instructing relevant hardware to be completed. The program can be stored in a computer-readable storage medium. The storage medium mentioned can be a read-only memory, a magnetic disk or an optical disk, etc.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection of the present invention. Within range.

Claims

An electronic cigarette, characterized in that the electronic cigarette includes a gas flow detection chip and a processor, wherein:

The gas flow detection chip includes a heating element and a temperature sensing element for sensing the temperature around the heating element, and the heating element and the temperature sensing element are arranged in the smoke outlet channel of the electronic cigarette;

The signal output terminal of the gas flow detection chip is electrically connected to the processor, and the voltage signal output from the signal output terminal is generated according to the sensing signal of the temperature sensing element;

The processor is configured to determine the amount of smoke atomized by the electronic cigarette in a unit time according to the voltage signal.
The electronic cigarette according to claim 1, wherein the gas flow detection chip comprises a first power receiving terminal, a second power receiving terminal and the signal output terminal, wherein:

The first power receiving end is electrically connected to the battery assembly in the electronic cigarette, and the voltage received by the first power receiving end is used as an internal reference voltage;

The second power receiving end is electrically connected to the battery assembly, and the voltage received by the second power receiving end is provided to the heating element.
The electronic cigarette according to claim 2, wherein the electronic cigarette further comprises a step-down chip, and the step-down chip includes a third power receiving terminal, a power output terminal, and an enabling terminal, wherein:

The third power receiving end is connected to the positive electrode of the battery assembly in the electronic cigarette;

The first power receiving terminal is electrically connected to the power output terminal, and the second power receiving terminal is electrically connected to the power output terminal;

The enable terminal is connected with the enable control pin of the processor.
The electronic cigarette according to claim 3, wherein the electronic cigarette further comprises a first resistor, a second resistor, a third resistor, and a voltage regulator tube, wherein:

The first end of the first resistor is connected to the output end of the power supply, the second end of the first resistor is electrically connected to the input end and the output end of the voltage regulator tube, respectively, and the first end of the first resistor The two ends are connected to the first power receiving end through a second resistor;

The first power receiving end is grounded through the third resistor.
The electronic cigarette according to claim 1, wherein the electronic cigarette further comprises a prompt component for prompting the amount of smoke, and the prompt component includes an LED light component, a display screen, a vibration motor, a buzzer, At least one of the voice prompt modules;

The anode of each LED lamp in the LED lamp assembly is electrically connected with the battery assembly, and the cathode of each LED lamp is connected with one LED lamp control pin of the processor.
The electronic cigarette according to claim 1, wherein the electronic cigarette further comprises an electronic switch and an atomizer, and the electronic switch comprises a control end, a first passage end, and a second passage end, wherein:

The control terminal of the electronic switch is connected with the output control pin of the processor;

The first passage end is electrically connected to the positive electrode of the battery assembly, and the second passage end is electrically connected to the atomizer;

The processor is used to control the switch of the electronic switch to control the output power of the atomizer, thereby controlling the amount of smoke generated by the atomizer.
The electronic cigarette according to claim 1, wherein the electronic cigarette further comprises an amplifier, and the amplifier comprises an inverting input terminal and an output terminal, wherein:

The inverting input terminal is connected to the signal output terminal of the gas flow detection chip;

The output terminal is electrically connected with the signal receiving terminal of the processor.
The electronic cigarette according to claim 7, wherein:

The inverting input terminal is grounded through a fourth resistor, the inverting input terminal is connected to the output terminal through a fifth resistor, and the inverting input terminal is connected to the output terminal through a capacitor;

The output terminal is connected to the signal receiving terminal of the processor through a sixth resistor.
An electronic cigarette control method, wherein the method is applied to the electronic cigarette according to any one of claims 1 to 8, and the method comprises:

In the process of atomizing the electronic cigarette, acquiring the voltage signal output by the gas flow detection chip;

The amount of smoke atomized by the electronic cigarette per unit time is determined according to the voltage signal.
The method according to claim 9, wherein after determining the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal, the method further comprises:

Obtaining a reference parameter according to the amount of smoke, where the reference parameter includes at least one of the amount of smoke, nicotine intake, cumulative puff, and cumulative number of puffs;

The prompt component is used to display the reference parameter.
The method according to claim 10, characterized in that, after obtaining the reference parameter according to the amount of smoke, the method further comprises:

Compare any reference parameter with the corresponding reasonable use range;

When the specific reference parameter is lower than the lower limit of the corresponding reasonable use range, the output power of the atomizer is increased, and the specific reference parameter includes at least one of smoke amount and nicotine intake; and/or,

When any reference parameter is higher than the upper limit of the corresponding reasonable use range, the output power of the atomizer is reduced.