Electronic cigarette and its control method

Abstract

The present invention discloses an electronic cigarette and its control method, belonging to the technical field of simulated smoking. 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 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 to determine the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal; enabling the user of the electronic cigarette to know the amount of smoke per unit time, solving the problem that it is difficult for current electronic cigarette users to accurately control the suction amount; achieving the effect of assisting the user to control suction.

Description

Technical Field

[0001] The present invention relates to the technical field of simulated smoking, and particularly relates to an electronic cigarette and a control method thereof. Background Art

[0002] As a substitute for tobacco products, electronic cigarettes are becoming more and more popular in the market because they are portable to use and have a large amount of smoke to a certain extent.

[0003] Currently, electronic cigarette users mainly judge their daily puffing amount according to their own feelings, so as to further determine whether to continue puffing to control the daily puffing amount. However, the subjective judgment of electronic cigarette users has errors, and even may have large errors, resulting in it being difficult for electronic cigarette users to accurately control the daily puffing amount. Summary of the Invention

[0004] In order to solve the problem that it is difficult for current electronic cigarette users to accurately control the puffing amount, an embodiment of the present invention provides an electronic cigarette and a control method thereof. The technical solution is as follows:

[0005] In a first aspect, an electronic cigarette is provided. The electronic cigarette includes a gas flow detection chip and a processor, wherein:

[0006] 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 are arranged in the smoke outlet channel of the electronic cigarette;

[0007] 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;

[0008] The processor is configured to determine the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal.

[0009] Optionally, the gas flow detection chip includes a first power receiving end, a second power receiving end, and the signal output end, wherein:

[0010] 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;

[0011] The second power receiving end is electrically connected to the battery assembly, and the voltage received by the second power receiving end is supplied to the heating element.

[0012] Optionally, the electronic cigarette further includes a step-down chip. The step-down chip includes a third power receiving end, a power output end, and an enable end, wherein:

[0013] The third power receiving end is connected to the positive electrode of the battery assembly in the electronic cigarette;

[0014] The first power receiving end is electrically connected to the power output end, and the second power receiving end is electrically connected to the power output end;

[0015] The enable end is connected to the enable control pin of the processor.

[0016] Optionally, the electronic cigarette further includes a first resistor, a second resistor, a third resistor, and a voltage stabilizing diode, where:

[0017] The first end of the first resistor is connected to the power output end, the second end of the first resistor is electrically connected to the input end and the output end of the voltage stabilizing diode respectively, and the second end of the first resistor is connected to the first power receiving end through the second resistor;

[0018] The first power receiving end is grounded through the third resistor.

[0019] Optionally, the electronic cigarette further includes a prompting component for prompting the amount of smoke, and the prompting component includes at least one of an LED lamp component, a display screen, a vibration motor, a buzzer, and a voice prompting module;

[0020] The anode of each LED lamp in the LED lamp component is connected to the battery assembly, and the cathode of each LED lamp is connected to an LED lamp control pin of the processor.

[0021] Optionally, the electronic cigarette further includes an electronic switch and an atomizer. The electronic switch includes a control end, a first path end, and a second path end, where:

[0022] The control end of the electronic switch is connected to the output control pin of the processor;

[0023] The first path end is electrically connected to the positive electrode of the battery assembly, and the second path end is electrically connected to the atomizer;

[0024] The processor is configured to control the switch of the electronic switch to control the output power of the atomizer, so as to control the amount of smoke generated by the atomizer.

[0025] Optionally, the electronic cigarette further includes an amplifier. The amplifier includes an inverting input end and an output end, where:

[0026] The inverting input end is connected to the signal output end of the gas flow detection chip;

[0027] The output end is electrically connected to the signal receiving end of the processor.

[0028] 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;

[0029] The output terminal is connected to the signal receiving terminal of the processor through a sixth resistor.

[0030] In a second aspect, a control method for an electronic cigarette is provided. The method is applied to the electronic cigarette involved in the first aspect and any optional implementation manner of the first aspect. The method includes:

[0031] During the atomization operation of the electronic cigarette, obtain the voltage signal output by the gas flow detection chip;

[0032] Determine the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal.

[0033] Optionally, after determining the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal, the method further includes:

[0034] Obtain a reference parameter according to the amount of smoke. The reference parameter includes at least one of the amount of smoke, nicotine intake, cumulative puff volume, and cumulative puff count;

[0035] Display the reference parameter by using a prompt component.

[0036] Optionally, after obtaining the reference parameter according to the amount of smoke, the method further includes:

[0037] Compare any reference parameter with the corresponding reasonable usage range;

[0038] When a specific reference parameter is lower than the lower limit value of the corresponding reasonable usage range, increase the output power of the atomizer. The specific reference parameter includes at least one of the amount of smoke and nicotine intake; and / or,

[0039] When any reference parameter is higher than the upper limit value of the corresponding reasonable usage range, decrease the output power of the atomizer.

[0040] The beneficial effects brought by the technical solution provided by the embodiments of the present invention are:

[0041] 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, and the heating element and the temperature sensing element are arranged in the smoke outlet 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 to determine the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal; enabling the user of the electronic cigarette to know the amount of smoke per unit time, solving the problem that it is difficult for current electronic cigarette users to accurately control the suction amount; achieving the effect of assisting the user to control suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0043] Figure 1 It is a schematic connection diagram of some internal components of an electronic cigarette shown in an exemplary embodiment of the present invention;

[0044] Figure 2 It is a schematic diagram of the smoke outlet channel provided in an embodiment of the present invention;

[0045] Figure 3 It is a schematic connection diagram of the gas flow detection chip and the amplifier provided in an embodiment of the present invention;

[0046] Figure 4 It is a schematic connection diagram of the buck chip provided in an embodiment of the present invention;

[0047] Figure 5 It is a schematic diagram of the pins of the processor provided in an embodiment of the present invention;

[0048] Figure 6 It is a schematic connection diagram of the electronic switch Q3 provided in an embodiment of the present invention;

[0049] Figure 7 It is a flowchart of the control method of the electronic cigarette provided in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in detail with reference to the drawings.

[0051] Figure 1It is a schematic diagram of the connection of some internal components of an electronic cigarette shown in an exemplary embodiment of the present invention. As Figure 1 shown, the electronic cigarette includes a gas flow detection chip U6 and a processor U1, where:

[0052] Please refer to Figure 1 and Figure 2 , the gas flow detection chip U6 includes a heating element 11 and a temperature sensing element 12 for sensing the temperature around the heating element 11. The heating element 11 and the temperature sensing element 12 are arranged in the smoke outlet channel 10 of the electronic cigarette; 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 to determine the smoke output volume of the smoke outlet channel 10 per unit time according to the voltage signal, that is, the amount of smoke atomized by the electronic cigarette per unit time.

[0053] Among them, the smoke outlet channel 10 is the channel through which the smoke atomized by the atomizer in the electronic cigarette flows to the outside. The smoke outlet channel 10 communicates with the atomization chamber and the mouthpiece in the electronic cigarette. The gas flow volume per unit time in the smoke outlet channel 10 is the smoke volume, that is, the smoke volume is the total amount of smoke generated by the electronic cigarette per unit time; during the atomization operation of the electronic cigarette, the gas flow detection chip U6 works, and the heating element 11 in the working gas flow detection chip U6 generates heat; when the smoke generated by the atomization chamber flows to the mouthpiece, an air flow is generated, and the air flow will take away the heat around the heating element 11 and change the thermal state distribution around the heating element 11. The temperature around the heating element 11 is negatively correlated with the gas flow velocity (that is, the higher the gas flow velocity, the lower the temperature around the heating element 11); therefore, the gas flow detection chip U6 can determine the gas flow velocity according to the sensing signal of the temperature sensing element 12, and further determine the smoke output volume of the smoke outlet channel 10 per unit time according to the gas flow velocity, and output a voltage signal for indicating the smoke output volume of the smoke outlet channel 10 per unit time from the signal output terminal 63.

[0054] Optionally, the temperature sensing element 12 in the gas flow detection chip U6 can be an NTC (English: Negative Temperature Coefficient) resistor, and the heating element 11 can be a heating wire, a heating sheet, etc. This embodiment does not make specific limitations on this.

[0055] 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 electronic cigarette user can know the amount of smoke per unit time, and solves the problem that it is difficult for the current electronic cigarette user to accurately control the suction amount; achieves the effect of assisting the user to control the suction.

[0056] Optionally, as Figure 3As shown, 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, where: The first power receiving terminal 62 is electrically connected to the battery component in the electronic cigarette, and the voltage received by the first power receiving terminal 62 serves as the internal reference voltage; The second power receiving terminal 64 is electrically connected to the battery component, and the voltage received by the second power receiving terminal 64 is supplied to the heating element 11. Optionally, the second power receiving terminal 64 is grounded through a capacitor C9.

[0057] 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 the UP- pin. 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.

[0058] Optionally, the electronic cigarette further includes a step-down chip U5, as Figure 4 shown. The step-down chip U5 includes a third power receiving terminal 41, a power output terminal 42, and an enable terminal 43, where: The third power receiving terminal 41 is connected to the positive pole of the battery component VCC_BAT; 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 Figure 4 and Figure 5 , the enable terminal 43 is connected to the enable control pin 22 of the processor U1 and is grounded through a resistor R41. Among them, the step-down chip U5 steps down the 5V voltage provided by the battery component to 2.8V, and a stable 2.8V voltage is output from the power output terminal 42.

[0059] Optionally, the third power receiving terminal 41 is grounded through a capacitor C15, the power output terminal 42 is grounded through a capacitor C14, the ground pin of the step-down chip U5 ( Figure 4 shown as the GND pin) is grounded, the bypass pin of the step-down chip U5 ( Figure 4 shown as the BP pin) is grounded; The enable terminal 43 is grounded through a resistor R41.

[0060] 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 diode U8, where: 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 terminal 81 and the output terminal 82 of the voltage regulator diode U8 respectively, the second end of the first resistor R33 is connected to the first power receiving terminal 62 through the second resistor R29; The first power receiving terminal 62 is grounded through the third resistor R31.

[0061] Optionally, the 2.8V voltage output from the power output terminal 42 of the step-down chip U5 is supplied to the input terminal 81 of the voltage regulator U8 through the first resistor R33. The output terminal 82 of the voltage regulator U8 outputs a stable 2.5V voltage. The 2.5V voltage output by the voltage regulator U8 is divided by the second resistor R29 and the third resistor R31 and supplied to the first power receiving terminal 62 of the gas flow detection chip U6 as an internal reference voltage.

[0062] It should be noted that: Please refer to Figure 3 and Figure 4 , the 2.8V voltage output from 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 step-down 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 step-down chip U5 is electrically connected to the fourth power receiving terminal 73 of the amplifier U7.

[0063] Optionally, still referring to Figure 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, where: the inverting input terminal 71 is connected to the signal output terminal 63 of the gas flow detection chip U6, and the inverting input terminal 71 is grounded through a capacitor C10; the output terminal 72 is 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 2.8V voltage. Among them, the amplifier U7 amplifies the voltage signal output from 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 gas flow rate in the smoke outlet channel 10 per unit time based on the voltage signal received by the signal receiving terminal 23 to obtain the smoke amount.

[0064] 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 output terminal 72 through a capacitor C16; the output terminal 72 is connected to the signal receiving terminal 23 of the processor U1 through a 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 electrically connected to the signal receiving terminal 23 of the processor U1 and grounded through a capacitor C17.

[0065] After the electronic cigarette determines the smoke amount in the smoke outlet channel per unit time, it can help the electronic cigarette user control the puffing in at least one of the following ways:

[0066] First, the electronic cigarette further includes a prompting component for prompting the amount of smoke in the smoke outlet channel per unit time. The prompting component includes at least one of an LED lamp component, a display screen, a vibration motor, a buzzer, and a voice prompting module. By using the prompting component to display the amount of smoke, the user of the electronic cigarette can accurately know it, so that the user can control his own suction. For example, the electronic cigarette can directly display the amount of smoke in the smoke outlet channel per unit time by using the display screen, or use the voice prompting module to voice broadcast the amount of smoke in the smoke outlet channel per unit time.

[0067] In this application, taking the electronic cigarette using the LED lamp component as the prompting component as an example, the number of lit LED lamps in the LED lamp component can be controlled to prompt the amount of smoke in the smoke outlet channel per unit time. The specific implementation can be: calculating the quotient of the amount of smoke and the reference amount to obtain a first value; if the first value is less than the number of LED lamps in the LED lamp component, then light the number of LED lamps in the LED lamp component corresponding to the first value; if the first value reaches the number of LED lamps in the LED lamp component, then control all the LED lamps in the LED lamp component to be lit. Among them, the reference amount can be set by developers or customized by users. The reference amount is the amount of smoke represented by each LED lamp.

[0068] Taking the reference amount of 10mg as an example, if the amount of smoke determined by the processor is 10mg, then light 1 LED lamp; if the amount of smoke determined by the processor is 25mg, then light 2 LED lamps.

[0069] Optionally, the LED lamp component only includes an LED indicator light, and the brightness of the LED indicator light is used to prompt the amount of smoke of the electronic cigarette; the LED indicator light includes multiple brightness levels, and each brightness level corresponds to a value range of the amount of smoke. The specific implementation can be: obtaining the amount of smoke in the smoke outlet channel per unit time; determining the brightness level corresponding to the value range where the amount of smoke is located; controlling the LED lamp to be lit according to the brightness level. Optionally, the brightness of the LED indicator light is positively correlated with the amount of smoke in the smoke outlet channel per unit time. The difference between the upper limit value and the lower limit value of the value range corresponding to each brightness level is a second value. The second value can be set by developers or customized by users. For example, developers can determine it according to the quotient of the maximum amount of smoke that the electronic cigarette can atomize per unit time and the number of brightness levels. For example, the second value can be 10mg.

[0070] Second, the electronic cigarette further includes a prompting component for prompting the nicotine intake per unit time. The electronic cigarette can determine the nicotine intake per unit time according to the amount of smoke in the smoke outlet channel per unit time and the nicotine content in the e-liquid in the electronic cigarette. Among them, the implementation of using the prompting component to prompt the nicotine content can refer to the implementation of prompting the amount of smoke in the smoke outlet channel per unit time, which will not be elaborated here.

[0071] Thirdly, the electronic cigarette also counts the cumulative number of puffs and / or the cumulative puff volume within the current statistical period. 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 cumulative number of puffs or the cumulative puff volume within the statistical period is displayed using a prompting component. For the specific implementation, reference can be made to the realization of prompting the smoke volume in the smoke outlet channel per unit time, which will not be elaborated here.

[0072] Among them, in this application, the electronic cigarette can determine the airflow change in the smoke outlet channel based on the voltage signal of the gas flow detection chip, and determine whether the user of the electronic cigarette takes a puff according to the airflow change. The cumulative number of puffs of the electronic cigarette user within each statistical period is counted. For example, when the electronic cigarette detects that the airflow in the smoke outlet channel changes from none to some, it determines that the user of the electronic cigarette takes a puff and updates the cumulative number of puffs. The electronic cigarette can also determine whether the user of the electronic cigarette takes a puff according to the smoke volume per unit time. For example, if the smoke volume in any unit time is greater than a predetermined value (for example, a value equal to or close to 0), and the smoke volume in the previous unit time is less than or equal to the predetermined value, it is determined that the user of the electronic cigarette takes a puff. In this application, the electronic cigarette can also obtain the cumulative puff volume within the current statistical period by counting the total smoke volume in each unit time within the current statistical period.

[0073] Fourthly, a display screen is provided on the electronic cigarette, and reference parameters are prompted using the display screen. The reference parameters include at least one of the smoke volume in the smoke outlet channel per unit time, the cumulative number of puffs within the statistical period, the nicotine intake, and the cumulative puff volume.

[0074] Optionally, an alarm threshold can be set for each reference parameter. When any of the above reference parameters reaches the corresponding alarm threshold, the user can be prompted of excessive puffing by controlling the vibration of the motor or controlling the buzzer to alarm.

[0075] In actual implementation, any one or more of the above four methods can be used for prompting, so that the user of the electronic cigarette can better control puffing.

[0076] For each LED lamp in the LED lamp assembly involved in this application, the anode of the LED lamp 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 controls the lighting and extinguishing of the LED lamp through the output level of the LED lamp control pin connected to the LED lamp.

[0077] Fifthly, limit thresholds 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 developers or customized by users according to their own smoking cessation needs. Among them, to avoid excessive smoke volume from damaging human health, such as causing users to be overly excited, dizzy, etc., developers can set the limit threshold corresponding to the smoke volume. Since the nicotine tolerance of each user is different, the average value of the minimum smoke volume that damages human health can be statistically calculated as the limit threshold corresponding to the smoke volume. For example, it can be 20mg.

[0078] 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 path terminal 32, and a second path terminal 33, where: the control terminal 31 of the electronic switch Q3 is connected to the output control pin 24 of the processor U1; the first path terminal 32 is electrically connected to the positive electrode VCC_BAT of the battery assembly, and the second path terminal 33 is electrically connected to the atomizer; the processor U1 is used to control the switch of the electronic switch Q3 to control the output power of the atomizer, thereby controlling the amount of smoke generated 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 length of the conduction time of the electronic switch Q3 determines the voltage magnitude provided to the atomizer, thereby changing the output power of the atomizer and realizing the adjustment of the smoke volume.

[0079] Please refer to Figure 7 , which shows the method flowchart of the control method of the electronic cigarette provided by an embodiment of the present invention. The control method of this electronic cigarette is applied to the above-mentioned electronic cigarette. The control method of this electronic cigarette may include:

[0080] Step 710, during the atomization operation of the electronic cigarette, obtain the voltage signal output by the gas flow detection chip.

[0081] Step 720, determine the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal.

[0082] In summary, the method provided by the embodiment of the present invention, by obtaining the voltage signal output by the gas flow detection chip during the atomization operation of the electronic cigarette; determining the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal; enables the user of the electronic cigarette to know the amount of smoke per unit time, enhances the smoking experience of smokers, and solves the problem that it is difficult for current electronic cigarette users to accurately control the suction volume; achieves the effect of assisting users in controlling suction.

[0083] Optionally, a reference parameter is obtained according to the amount of smoke, and the reference parameter includes at least one of the amount of smoke, nicotine intake, cumulative puff volume, and cumulative number of puffs; and the reference parameter is displayed by a prompt component.

[0084] Optionally, after step 720, any reference parameter is compared with a corresponding reasonable usage range; when a specific reference parameter is lower than the lower limit value of the corresponding reasonable usage range, the output power of the atomizer is increased, and the specific reference parameter includes at least one of the amount of smoke and nicotine intake; and / or when any reference parameter is higher than the upper limit value of the corresponding reasonable usage range, the output power of the atomizer is decreased.

[0085] Among them, the reasonable usage range corresponding to each reference parameter can be set by developers or customized by users.

[0086] When the amount of smoke generated per unit time is lower than the lower limit value of the corresponding reasonable usage range, the usage experience of the electronic cigarette is poor and it is difficult to meet the puffing needs of electronic cigarette users; when the nicotine intake per unit time is lower than the lower limit value of the corresponding reasonable usage range, the usage experience of the electronic cigarette is poor and it is difficult to meet the puffing needs of electronic cigarette users.

[0087] When any reference parameter is higher than the upper limit value of the corresponding reasonable usage range, the electronic cigarette user puffs excessively, and the electronic cigarette user reduces the output power of the atomizer to assist in reducing the puffing volume of the electronic cigarette user.

[0088] An embodiment of the present invention further provides a computer-readable storage medium, in which one or more instructions are stored, and when the one or more instructions are executed by a processor in the electronic cigarette, the control method of the electronic cigarette involved in any of the above embodiments is implemented.

[0089] 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, and the memory is used to store program instructions. The processor can implement the control method of the electronic cigarette involved in any of the above embodiments by executing the program instructions.

[0090] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or the number of indicated technical features. Thus, the features defined by "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0091] Those of ordinary skill in the art can understand that all or part of the steps to implement the above embodiments can be completed by hardware, or can be completed by instructing relevant hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned storage medium can be a read-only memory, a disk, an optical disc, etc.

[0092] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electronic cigarette, characterized in that, The electronic cigarette comprises a gas flow detection chip, a processor and a prompt component, wherein: The gas flow detection chip comprises 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; During the atomization process of the electronic cigarette, the gas flow detection chip works, and the heating element in the working state of the gas flow detection chip generates heat; when the smoke generated by the atomization chamber flows to the mouthpiece, an airflow is generated, and the airflow takes away the heat around the heating element and changes the thermal distribution around the heating element. The temperature around the heating element is negatively correlated with the gas flow rate. The gas flow detection chip determines the airflow velocity according to the sensing signal of the temperature sensing element, and further determines the amount of smoke output from the smoke outlet channel per unit time according to the airflow velocity, and outputs a voltage signal indicating the amount of smoke output from the smoke outlet channel per unit time from the signal output end; The processor is used to determine the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal, The prompt component is used to prompt the smoke volume of the smoke outlet channel per unit time or to prompt the nicotine intake per unit time or to display the cumulative number of puffs or the cumulative puff volume in a statistical period; 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 to the battery assembly, and the cathode of each LED lamp is connected to an LED lamp control pin of the processor.

2. The electronic cigarette according to claim 1, characterized in that The gas flow detection chip comprises a first power receiving end, a second power receiving end and the signal output end, 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.

3. The electronic cigarette according to claim 2, characterized in that, The electronic cigarette further includes a step-down chip, which includes a third power supply receiving terminal, a power supply 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 end is electrically connected to the power output end, and the second power receiving end is electrically connected to the power output end; The enable terminal is connected to an enable control pin of the processor.

4. The electronic cigarette according to claim 3, characterized in that, 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 power output end, 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 second end of the first resistor is connected to the first power receiving end through the second resistor; The first power receiving end is grounded through the third resistor.

5. The electronic cigarette according to claim 1, characterized in that, The electronic cigarette further comprises an electronic switch and an atomizer, wherein the electronic switch comprises a control end, a first passage end, and a second passage end, wherein: The control end of the electronic switch is connected to 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 on / off of the electronic switch to control the output power of the atomizer, thereby controlling the amount of smoke generated by the atomizer.

6. The electronic cigarette according to claim 1, characterized in that, The electronic cigarette further comprises an amplifier, wherein 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 end is electrically connected to a signal receiving end of the processor.

7. The electronic cigarette according to claim 6, characterized in that: 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 end is connected to the signal receiving end of the processor through a sixth resistor.

8. A control method for an electronic cigarette, characterized in that, The method is applied to the electronic cigarette according to any one of claims 1 to 7, and the method comprises: During the atomization process of the electronic cigarette, a voltage signal output by the gas flow detection chip is obtained; Determining the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal specifically includes: the gas flow detection chip works during the atomization process of the electronic cigarette, and the heating element in the gas flow detection chip in the working state generates heat; when the smoke generated by the atomization chamber flows to the mouthpiece, an airflow is generated, and the airflow takes away the heat around the heating element and changes the thermal distribution around the heating element, and the temperature around the heating element is negatively correlated with the gas flow rate, and the gas flow detection chip determines the airflow velocity according to the sensing signal of the temperature sensing element, and further determines the amount of smoke output of the smoke outlet channel per unit time according to the airflow velocity, and outputs a voltage signal indicating the amount of smoke output of the smoke outlet channel per unit time from the signal output end; After determining the amount of smoke atomized by the electronic cigarette per unit time according to the voltage signal, the method further includes: Acquire a reference parameter according to the smoke volume, the reference parameter comprising at least one of the smoke volume, nicotine intake, cumulative puff volume, and cumulative number of puffs; The reference parameters are displayed using a prompt component.

9. The method according to claim 8, wherein After obtaining the reference parameter according to the smoke volume, the method further includes: Compare any reference parameter with the corresponding reasonable use range; When a specific reference parameter is lower than a lower limit of a corresponding reasonable use range, increasing the output power of the atomizer, wherein the specific reference parameter includes at least one of smoke volume 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.

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