Oil quantity control method, oil quantity detection assembly and electronic cigarette

Abstract

The invention relates to an oil quantity control method, an oil quantity detection assembly and an electronic cigarette. The tobacco tar quantity control method comprises the steps that the tobacco tar atomization quantity is obtained; when the tobacco tar atomization amount is larger than the preset atomization amount, the current tobacco tar amount is obtained; when the current oil mass is larger than the preset oil mass, the minimum oil supplementing time serves as the target oil supplementing time; otherwise, taking the maximum oil recharging time as the target oil recharging time; and supplementing oil to the electronic cigarette based on the target oil supplementing time. According to the method and the device, after it is detected that the atomization amount of the tobacco tar is larger than the preset atomization amount, the current oil amount can be obtained, and the specific oil supplementing time is determined according to the size relation between the current oil amount and the preset oil amount, so that the to-be-atomized oil amount after oil supplementing is more stable.

Description

Technical Field

[0001] This application relates to the field of oil quantity detection technology, and in particular to an oil quantity control method, an oil quantity detection component, and an electronic cigarette. Background Technology

[0002] Electronic cigarettes are electronic devices that mimic traditional cigarettes, heating a liquid (e-liquid) to produce an aerosol for users to inhale. They include disposable e-cigarettes, pod-based e-cigarettes, and open-system e-cigarettes. Disposable or pod-based e-cigarettes typically use a single-piece e-liquid reservoir to store the e-liquid, ensuring a stable release to the atomizer core. When the reservoir is low on e-liquid, it is replenished via the e-liquid tank. Traditional technology determines the amount of e-liquid consumed by the user by detecting the amount of e-liquid vaporized, and then replenishes the e-liquid according to a preset amount. However, because the e-liquid vaporization rate is an indirect method of detection, the results are not accurate enough. Therefore, this replenishment method leads to inconsistent e-liquid levels after replenishment. Summary of the Invention

[0003] Therefore, it is necessary to provide an oil volume control method, an oil volume detection component, and an electronic cigarette that can maintain a stable oil volume for atomization, in response to the above-mentioned technical problems.

[0004] In a first aspect, this application proposes an e-liquid quantity control method, the method comprising: obtaining the e-liquid atomization quantity; when the e-liquid atomization quantity is greater than a preset atomization quantity, obtaining the current e-liquid quantity; when the current e-liquid quantity is greater than the preset e-liquid quantity, using the minimum refill time as the target refill time; otherwise, using the maximum refill time as the target refill time; and refilling the e-cigarette with e-liquid based on the target refill time.

[0005] In one embodiment, the step of obtaining the e-liquid atomization amount includes: obtaining the inhalation time; and determining the e-liquid atomization amount based on the atomization amount per second and the inhalation time.

[0006] In one embodiment, the method further includes: obtaining a minimum atomization amount and a maximum refill speed; wherein the minimum atomization amount is obtained after a first correction to the e-liquid atomization amount; and determining the minimum refill time based on the minimum atomization amount and the maximum refill speed.

[0007] In one embodiment, the method further includes: obtaining a maximum atomization amount and a minimum refill speed; wherein the maximum atomization amount is obtained after a second correction to the e-liquid atomization amount; and determining the maximum refill time based on the maximum atomization amount and the minimum refill speed.

[0008] Secondly, this application proposes an oil level detection component for detecting the current oil level in the oil level control method described in the first aspect embodiment above. The oil level detection component includes: a detector element embedded in an integrated cotton core; a drive module connected to the detector element; and a controller connected to the signal input terminal of the drive module, wherein the controller sends a PWM control signal to the signal input terminal of the drive module, the drive module sends a detection signal to the detector element under the control of the PWM control signal, the controller's signal detection terminal is connected to the detector element, the controller's signal detection terminal acquires the detection signal, and the controller determines the oil level based on the attenuation of the detection signal.

[0009] In one embodiment, the driving module includes: a first switching transistor and a second switching transistor, the gates of the first switching transistor and the second switching transistor are both connected to the signal output terminal of the controller and used to receive the PWM control signal, the drain of the first switching transistor is connected to the drain of the second switching transistor and used to output the detection signal, the source of the first switching transistor is grounded, and the source of the second switching transistor is used to receive the operating voltage.

[0010] In one embodiment, the driving module further includes a first capacitor, one end of which is connected to the drain of the first switching transistor, and the other end of which is connected to the probe.

[0011] In one embodiment, the driving module further includes a second capacitor, one end of which is connected to the source of the second switching transistor, and the other end of which is grounded.

[0012] In one embodiment, the probe is a nickel wire.

[0013] Thirdly, this application also proposes an electronic cigarette, including the oil level detection component described in the first aspect embodiment above.

[0014] The aforementioned e-liquid control method, e-liquid detection component, and e-cigarette, when detecting that the e-liquid atomization volume exceeds the preset atomization volume, indicate that the detected e-liquid consumption has reached the preset amount. At this point, it is necessary to obtain the current e-liquid volume to determine the replenishment amount. If the current e-liquid volume exceeds the preset e-liquid volume, it indicates that there is a large amount of e-liquid remaining. In this case, the minimum replenishment time is used as the target replenishment time to prevent over-replenishment. Otherwise, it indicates that there is a small amount of e-liquid remaining. In this case, the maximum replenishment time is used as the target replenishment time to prevent under-replenishment. This application, after detecting that the e-liquid atomization volume exceeds the preset atomization volume, also obtains the current e-liquid volume and determines the specific replenishment time based on the relationship between the current e-liquid volume and the preset e-liquid volume, thereby making the e-liquid volume to be atomized after replenishment more stable. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a flowchart illustrating the oil quantity control method in one embodiment;

[0017] Figure 2 This is a flowchart illustrating the process of determining the amount of e-liquid atomization in one embodiment;

[0018] Figure 3 This is a flowchart illustrating the process of determining the minimum refueling time in one embodiment;

[0019] Figure 4 This is a flowchart illustrating the process of determining the maximum refueling time in one embodiment;

[0020] Figure 5 This is a schematic diagram of the oil level detection component in one embodiment;

[0021] Figure 6 This is a circuit diagram of the driving module in one embodiment.

[0022] Explanation of reference numerals in the attached figures:

[0023] Detector 210, drive module 220, controller 230. Detailed Implementation

[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be more thorough and complete.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0027] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. Furthermore, in the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if there is an exchange of electrical signals or data between the connected objects.

[0028] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0029] In one embodiment, such as Figure 1 As shown, this application proposes an oil quantity control method, including but not limited to the following steps:

[0030] Step S110: Obtain the amount of e-liquid atomized.

[0031] Specifically, in this embodiment, when controlling the amount of e-liquid, the atomization amount is first obtained. The atomization amount reflects the e-liquid consumption of the e-cigarette under current usage conditions. The atomization amount can be monitored by sensors (such as flow sensors) installed inside the e-cigarette. By monitoring the flow rate of vapor generated during the atomization process in real time, and by integrating the flow rate over a period of time or calculating according to a specific algorithm, the atomization amount of the e-liquid is obtained.

[0032] Step S120: When the e-liquid atomization amount is greater than the preset atomization amount, obtain the current e-liquid volume.

[0033] Specifically, when the e-liquid atomization volume exceeds the preset atomization volume, it indicates that the e-liquid atomization volume monitoring has determined that the user has inhaled too much e-liquid, and there may be a shortage of e-liquid. In this case, it is necessary to obtain the current e-liquid volume for further judgment. The current e-liquid volume can be detected by the existing e-liquid volume detection sensor.

[0034] Step S130: Is the current oil level greater than the preset oil level?

[0035] Specifically, after obtaining the current fuel level, it is compared with the pre-stored preset fuel level to determine whether the current fuel level is greater than the preset fuel level.

[0036] Step S140: Set the minimum refueling time as the target refueling time.

[0037] Specifically, when the current e-liquid level is greater than the preset level, it indicates that less e-liquid has been consumed and a larger amount remains. In this case, the minimum refill time is used as the target refill time. The minimum refill time is the preset minimum refill time, which can be determined through prior experimentation or calculation. For example, a mapping relationship between e-liquid level and refill time can be established based on empirical data, and the refill time can be quickly determined by looking up a table; alternatively, the required refill time can be calculated based on the ratio of the current e-liquid level to the total e-liquid level.

[0038] Step S150: The maximum refueling time is taken as the target refueling time.

[0039] Specifically, when the current e-liquid level is less than or equal to the preset level, it indicates that a significant amount of e-liquid has been consumed, leaving a small amount remaining. In this case, the maximum refill time is used as the target refill time. The maximum refill time is the preset maximum refill time, which can be determined through prior testing or calculated.

[0040] Step S160: Refill the e-cigarette with e-liquid based on the target refill time.

[0041] Specifically, after determining the target refill time, the e-cigarette's refill module is controlled to refill the e-liquid. The refill module includes a micro pump, solenoid valve, etc., which can deliver e-liquid from the spare e-liquid tank to the integrated cotton pack under the action of the refill signal, thereby achieving automatic refilling.

[0042] The aforementioned e-liquid control method, when detecting that the e-liquid atomization amount exceeds the preset atomization amount, indicates that the detected e-liquid consumption has reached the preset amount. At this point, it is necessary to obtain the current e-liquid amount to determine the replenishment amount. If the current e-liquid amount exceeds the preset amount, it indicates that there is a large amount of e-liquid remaining. In this case, the minimum replenishment time is used as the target replenishment time to prevent over-replenishment. Otherwise, it indicates that there is a small amount of e-liquid remaining. In this case, the maximum replenishment time is used as the target replenishment time to prevent under-replenishment. This application, after detecting that the e-liquid atomization amount exceeds the preset atomization amount, will also obtain the current e-liquid amount and determine the specific replenishment time based on the relationship between the current e-liquid amount and the preset e-liquid amount, thereby making the e-liquid amount to be atomized more stable after replenishment.

[0043] In one embodiment, such as Figure 2 As shown, step S110, the step of obtaining the e-liquid atomization amount, includes:

[0044] Step S111: Obtain the aspiration time.

[0045] Specifically, in this embodiment, when determining the amount of e-liquid atomized, the inhalation time is first obtained. The inhalation time is the total inhalation time obtained by counting the e-cigarette when it is fully filled with e-liquid. In some embodiments, the inhalation time can be calculated from the recorded time T for each inhalation by the user and the total number of inhalations n. In this case, the inhalation time can be expressed as ΣTn.

[0046] Step S112: Determine the amount of e-liquid atomized based on the amount of atomization per second and the inhalation time.

[0047] Specifically, after obtaining the vaping time, the e-liquid atomization amount is calculated by combining it with the e-cigarette's vaporization rate per second (VPS). VPS can be a preset value or calculated based on the user's vaping habits. In some embodiments, the VPS TP at a set power level can be calculated from the vaporization amount of the e-cigarette during a preset vaping time (e.g., 20 seconds). After obtaining the VPS TP and vaping time ΣTn, the product of TP and ΣTn is calculated to obtain the e-liquid atomization amount, which can then be expressed as TP*ΣTn. It is understood that due to different user vaping habits, the atomization amount per vaping session will vary. Therefore, a correction factor can be introduced to adjust the e-liquid atomization amount, with the correction factor ranging from 80% to 120%.

[0048] In one embodiment, such as Figure 3 As shown, the fuel quantity control method also includes:

[0049] Step S141: Obtain the minimum atomization amount and the maximum refueling speed.

[0050] Specifically, in this embodiment, the minimum refill time is calculated in real time. When determining the minimum refill time, the minimum atomization amount and maximum refill speed are first obtained. The minimum atomization amount is obtained after applying a first correction to the e-liquid atomization amount. In some embodiments, the minimum atomization amount TPMmin = TP * ΣTn * Kmin, where Kmin is the first atomization amount correction factor, and its value ranges from 80% to 90%. In this case, the minimum atomization amount is the product of the first atomization amount correction factor and the e-liquid atomization amount. The maximum refill speed is the maximum refill speed of the e-liquid pump. In some embodiments, the maximum refill speed is R * KMmax, where R is the rated flow rate of the e-liquid pump, and KMmax is the first refill correction factor, and its value ranges from 110% to 120%.

[0051] Step S142: Determine the minimum refueling time based on the minimum atomization amount and the maximum refueling speed.

[0052] Specifically, after obtaining the minimum atomization volume and the maximum replenishment speed, the quotient of the minimum atomization volume and the maximum replenishment speed is calculated and used as the minimum replenishment time. At this point, the minimum replenishment time t1 = TP * ΣTn * Kmin / R * KMmax. In this embodiment, when the current e-liquid volume is detected to be greater than the preset e-liquid volume, to ensure the stability of the e-liquid level, the replenishment volume needs to be less than the atomization volume. Therefore, the minimum replenishment time is calculated based on the corrected minimum atomization volume and maximum replenishment speed, thereby estimating the replenishment volume at the minimum level to prevent excessive e-liquid volume after replenishment, exceeding the e-liquid level, and thus maintaining the stability of the e-liquid level.

[0053] In one embodiment, such as Figure 4 As shown, the fuel quantity control method also includes:

[0054] Step S151: Obtain the maximum atomization amount and minimum refueling speed.

[0055] Specifically, in this embodiment, the maximum refill time is calculated in real time. To determine the maximum refill time, the maximum atomization volume and minimum refill speed are first obtained. The maximum atomization volume is obtained after applying a second correction to the e-liquid atomization volume. In some embodiments, the maximum atomization volume TPMmax = TP * ΣTn * Kmax, where Kmax is the second atomization volume correction factor, and its value ranges from 110% to 120%. In this case, the maximum atomization volume is the product of the second atomization volume correction factor and the e-liquid atomization volume. The minimum refill speed is the minimum refill speed of the e-liquid pump. In some embodiments, the minimum refill speed is R * KMmin, where R is the rated flow rate of the e-liquid pump, and KMmin is the second refill correction factor, and its value ranges from 70% to 95%.

[0056] Step S152: Determine the maximum refueling time based on the maximum atomization amount and the minimum refueling speed.

[0057] Specifically, after obtaining the maximum atomization volume and minimum replenishment speed, the quotient of the maximum atomization volume and minimum replenishment speed is calculated and used as the maximum replenishment time. At this point, the maximum replenishment time t2 = TP * ΣTn * Kmax / R * KMmin. In this embodiment, when the current e-liquid volume is detected to be less than or equal to the preset e-liquid volume, to ensure the stability of the e-liquid level, the replenishment volume needs to be greater than the atomization volume. Therefore, the replenishment time is calculated based on the corrected maximum atomization volume and minimum replenishment speed, thereby estimating the replenishment volume at the maximum level to prevent the e-liquid volume after replenishment from being too low and falling below the e-liquid level, thus maintaining the stability of the e-liquid level.

[0058] In one embodiment, this application also provides an oil quantity detection component for detecting the current oil quantity in the oil quantity control method of the above embodiments.

[0059] In one embodiment, such as Figure 5As shown, the oil level detection component includes: a detector 210, a drive module 220, and a controller 230. The detector 210 is embedded in an integrated cotton core. The signal output terminal of the drive module 220 is connected to the detector 210. The signal output terminal of the controller 230 is connected to the signal input terminal of the drive module 220. The controller 230 is used to send a PWM (Pulse-Width Modulation) control signal to the signal input terminal of the drive module 220. The drive module 220 is used to send a detection signal to the detector 210 under the control of the PWM control signal. The signal detection terminal of the controller 230 is connected to the detector 210. The signal detection terminal of the controller 230 is used to acquire the detection signal. The controller 230 is used to determine the oil level based on the detection signal.

[0060] Specifically, the detector 210 is embedded in the integrated cotton and directly contacts it. The detector 210 is a conductor capable of conducting electrical signals. When the e-liquid in the integrated cotton comes into contact with the detector 210, it absorbs the signal energy of the detection signal on the detector 210, thus attenuating the detection signal. In some embodiments, the detector 210 is made of a metallic material, such as copper, aluminum, or nickel. In some embodiments, the detector 210 can be configured as a filamentous, mesh-like, or sheet-like structure. In some embodiments, the detector 210 is a nickel wire. In some embodiments, the detector 210 includes two nickel wires, one end of which is connected together and connected to the signal output terminal of the drive module 220. The other ends of the two nickel wires are respectively embedded in the integrated cotton; for example, the two nickel wires are inserted and fixed from opposite corners of the integrated cotton.

[0061] The signal input terminal of the drive module 220 is connected to the signal output terminal of the controller 230, and the signal output terminal of the drive module 220 is connected to the probe 210. The drive module 220 is used to generate a corresponding probe signal based on the received PWM control signal, and it can be composed of multiple electronic components (such as resistors, capacitors, and transistors). The drive module 220 is used to convert the PWM signal into an AC probe signal; the drive module 220 is also used to amplify the signal power to give the probe signal sufficient signal energy; the drive module 220 is also used to achieve electrical isolation between the controller 230 and the probe 210, preventing electrical interference (such as electrostatic discharge, electromagnetic interference, etc.) from the probe 210 side from being transmitted to the controller 230, thus protecting the controller 230 from damage.

[0062] The controller 230 can be a microcontroller 230 (MCU) or an application-specific integrated circuit (ASIC), which integrates a processor, memory, input / output interfaces, and other modules. The signal output terminal of the controller 230 sends a PWM control signal to the signal input terminal of the drive module 220. The signal detection terminal of the controller 230 is connected to the detector 210 to collect the detection signal generated by the detector 210. The detection signal reflects the result of the interaction between the detector 210 and the oil in the integrated cotton, and contains information about the amount of oil. The controller 230 processes and analyzes the collected detection signal, and uses a pre-stored algorithm to determine the amount of oil in the integrated cotton based on the attenuation of the detection signal, thereby completing the oil quantity detection. In some embodiments, the signal frequency of the PWM control signal output by the controller 230 is 50Hz, and correspondingly, the signal frequency of the detection signal converted by the drive module 220 is also 50Hz.

[0063] The aforementioned e-liquid detection component sends a PWM control signal to the drive module 220 via the controller 230. The drive module 220 generates a corresponding detection signal based on the PWM control signal and sends it to the detector 210. The detector 210 is embedded in the integrated cotton. The e-liquid in the integrated cotton absorbs the signal energy of the detection signal, causing the detection signal to attenuate. The attenuated signal is collected by the signal detection terminal of the controller 230, thus obtaining the detection signal. By analyzing the degree of attenuation of the detection signal, the controller 230 can determine the amount of e-liquid in the integrated cotton. The e-liquid detection component of this application can complete e-liquid detection by simply setting the detector 210 and the drive module 220. Compared with detection methods using capacitive and high-precision sensors, the detection structure of this application is simpler, lower in cost, and more suitable for disposable electronic cigarettes.

[0064] In one embodiment, such as Figure 2 As shown, the drive module 220 includes a first switch Q1A and a second switch Q1B. The gates of both the first switch Q1A and the second switch Q1B are connected to the signal output terminal of the controller 230 and are used to receive PWM control signals. The drain of the first switch Q1A is connected to the drain of the second switch Q1B and is used to output a detection signal. The source of the first switch Q1A is grounded, and the source of the second switch Q1B is used to receive the operating voltage.

[0065] Specifically, in this embodiment, the drive module 220 performs signal conversion using two switching transistors. Both the first switching transistor Q1A and the second switching transistor Q1B are MOS transistors; Q1A is an NMOS transistor, and Q1B is a PMOS transistor. The gates of both transistors are connected to the signal output terminal of the controller 230, i.e., the PWM port in the figure, to receive the PWM control signal output by the controller 230. The drain of the first switching transistor Q1A is connected to the drain of the second switching transistor Q1B; this connection point is the output terminal of the detection signal, i.e., the POUT port in the figure. The source of the first switching transistor Q1A is grounded, while the source of the second switching transistor Q1B is connected to the operating voltage source, providing the necessary power to the entire drive module 220. Within one PWM cycle, by controlling the on and off times of the first switching transistor Q1A and the second switching transistor Q1B, a detection signal with specific waveforms and parameters can be generated at their drain connection point. For example, when the first switch Q1A is on and the second switch Q1B is off, the output is close to ground potential; when the first switch Q1A is off and the second switch Q1B is on, the output is close to the operating voltage. By continuously switching the states of the two switches, a square wave-like detection signal can be output, the frequency and duty cycle of which are determined by the PWM control signal.

[0066] In one embodiment, such as Figure 6 As shown, the drive module 220 also includes a first capacitor C1, one end of which is connected to the drain of the first switching transistor Q1A, and the other end of which is connected to the detector 210. By setting the first capacitor C1, the DC signal can be isolated and the waveform of the detection signal can be smoothed.

[0067] In one embodiment, such as Figure 6 As shown, the drive module 220 also includes a second capacitor C2, one end of which is connected to the source of the second switching transistor Q1B, and the other end of which is grounded. Specifically, by setting the second capacitor C2, power supply noise can be removed, the power supply voltage can be stabilized, thereby reducing the switching losses of the switching transistor and suppressing voltage spikes.

[0068] In one embodiment, such as Figure 6 As shown, the drive module 220 also includes: a first resistor R1, one end of which is used to receive the working voltage, and the other end of which is connected to one end of the second capacitor C2. The first resistor R1 is used to limit the current flowing into the second capacitor C2 and is used to protect the circuit.

[0069] In one embodiment, such as Figure 6 As shown, the driving module 220 also includes a second resistor R2, one end of which is connected to the other end of the first capacitor C1, and the other end of which is connected to the probe 210.

[0070] In one embodiment, such as Figure 6 As shown, the drive module 220 also includes a third resistor R3. One end of the third resistor R3 is connected to the source of the second switch Q1B, and the other end of the third resistor R3 is connected to the gate of the second switch Q1B. The third resistor R3 is used to provide a suitable bias voltage to the gate of the second switch Q1B to improve the conduction characteristics and stability of the switch.

[0071] In one embodiment, such as Figure 6 As shown, the drive module 220 also includes a fourth resistor R4. One end of the fourth resistor R4 is connected to the other end of the first capacitor C1, and the other end of the fourth resistor R4 is connected to the signal input terminal of the controller 230, i.e., the ADC_POUT port in the figure. The fourth resistor R4 is used to divide and adjust the detection signal so that the detection signal meets the input requirements of the controller 230.

[0072] In one embodiment, such as Figure 6 As shown, the drive module 220 also includes a fifth resistor R5, one end of which is connected to the other end of the first capacitor C1, and the other end of which is grounded. When the circuit is powered off or the switching transistor is turned off, the fifth resistor R5 can provide a discharge path for the first capacitor C1, allowing the charge in the capacitor to be released quickly and preventing residual charge on the capacitor from affecting the circuit.

[0073] In one embodiment, such as Figure 6 As shown, the driving module 220 consists of five resistors, two capacitors, and two MOSFETs, thereby generating the detection signal. This embodiment features a simple circuit structure and low component cost, making it more suitable for disposable electronic cigarettes.

[0074] In one embodiment, this application also proposes an electronic cigarette that includes the oil level detection component described in the above embodiments.

[0075] In one embodiment, the electronic cigarette further includes an atomizing chamber, a secondary e-liquid tank, and an e-liquid pump. The atomizing chamber contains an integrated e-liquid unit, and a detector 210 is embedded in the integrated e-liquid unit. The secondary e-liquid tank is an additional e-liquid storage component that can increase the e-cigarette's battery life. The e-liquid pump is connected to the secondary e-liquid tank and is used to inject the e-liquid from the secondary e-liquid tank into the integrated e-liquid unit, thereby replenishing the e-liquid unit.

[0076] In one embodiment, the electronic cigarette is also used to perform the oil volume control method in the above embodiments.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," and "specific embodiment" refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for controlling oil quantity, characterized in that, The method includes: Obtain the amount of e-liquid atomized; When the e-liquid atomization amount is greater than the preset atomization amount, the current e-liquid volume is obtained; When the current fuel level is greater than the preset fuel level, the minimum refueling time is used as the target refueling time; otherwise, the maximum refueling time is used as the target refueling time. The e-cigarette is refilled based on the target refill time.

2. The oil quantity control method according to claim 1, characterized in that, The step of obtaining the e-liquid atomization amount includes: Obtain the suction time; The amount of e-liquid atomized is determined based on the amount of atomization per second and the inhalation time.

3. The oil quantity control method according to claim 1, characterized in that, The method further includes: The minimum atomization amount and the maximum e-liquid replenishment speed are obtained; wherein, the minimum atomization amount is obtained after a first correction to the e-liquid atomization amount; The minimum refueling time is determined based on the minimum atomization amount and the maximum refueling speed.

4. The oil quantity control method according to claim 1, characterized in that, The method further includes: The maximum atomization amount and the minimum replenishment speed are obtained; wherein, the maximum atomization amount is obtained after a second correction to the atomization amount of the e-liquid; The maximum refueling time is determined based on the maximum atomization amount and the minimum refueling speed.

5. An oil level detection component, characterized in that, For detecting the current oil quantity in the oil quantity control method according to any one of claims 1 to 4; the oil quantity detection component includes: The detector is used to be embedded in the integrated cotton. The drive module, wherein the signal output terminal of the drive module is connected to the detector; The controller has its signal output terminal connected to the signal input terminal of the drive module. The controller sends a PWM control signal to the signal input terminal of the drive module. The drive module sends a detection signal to the detector under the control of the PWM control signal. The controller's signal detection terminal is connected to the detector. The controller's signal detection terminal is used to acquire the detection signal. The controller determines the oil quantity based on the attenuation of the detection signal.

6. The oil quantity detection component according to claim 5, characterized in that, The driving module includes a first switching transistor and a second switching transistor. The gates of both the first and second switching transistors are connected to the signal output terminal of the controller and are used to receive the PWM control signal. The drain of the first switching transistor is connected to the drain of the second switching transistor and is used to output the detection signal. The source of the first switching transistor is grounded, and the source of the second switching transistor is used to receive the operating voltage.

7. The oil quantity detection component according to claim 6, characterized in that, The driving module further includes: a first capacitor, one end of which is connected to the drain of the first switching transistor, and the other end of which is connected to the probe.

8. The oil level detection component according to claim 6, characterized in that, The driving module further includes a second capacitor, one end of which is connected to the source of the second switching transistor, and the other end of which is grounded.

9. The oil level detection component according to claim 5, characterized in that, The detector is a nickel wire.

10. An electronic cigarette, characterized in that, Includes the oil level detection component as described in any one of claims 5 to 9.

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