WO2024027780A1

WO2024027780A1 - Electronic atomization apparatus, e-liquid quantity measurement method and apparatus, and readable storage medium

Info

Publication number: WO2024027780A1
Application number: PCT/CN2023/110884
Authority: WO
Inventors: 李祥忠; 张幸福; 窦恒恒; 王晓冉
Original assignee: 深圳麦时科技有限公司
Priority date: 2022-08-04
Filing date: 2023-08-03
Publication date: 2024-02-08
Also published as: CN117547061A

Abstract

An electronic atomization apparatus, an e-liquid quantity measurement method and apparatus, and a readable storage medium. The electronic atomization apparatus comprises: a housing (10), an atomizer (20), a measurement electrode (30), and a capacitance measurement module (40); the atomizer (20) is connected to the housing (10), and an e-liquid storage body (21) is provided in the atomizer (20); the measurement electrode (30) is provided in the e-liquid storage body (21) or outside of the e-liquid storage body (21), and the measurement electrode (30) and the housing (10) form a capacitor, wherein the capacitance measurement module (40) is used for measuring a capacitance value of the capacitor and determining the quantity of e-liquid in the e-liquid storage body (21) according to the capacitance value.

Description

Electronic atomization device, e-liquid amount detection method, device and readable storage medium

Related applications

This application claims the priority of the Chinese patent application filed on August 4, 2022, with the application number 2022109331004 and titled "Electronic atomization device, e-liquid amount detection method, device and readable storage medium", which is hereby included. The entire text is incorporated by reference.

Technical field

The present application relates to the field of atomization equipment, and in particular, to an electronic atomization device, an e-liquid amount detection method, a device and a readable storage medium.

Background technique

Atomizer equipment usually includes: power supply, e-liquid storage body and atomizer. During use, the e-liquid stored in the e-liquid storage body will be consumed, so it is often necessary to refill or replace the e-liquid storage body. Therefore, the user wishes to know the amount of e-liquid stored in the e-liquid storage body (the amount of e-liquid).

Contents of the invention

In a first aspect, this application provides an electronic atomization device, including a housing, an atomizer, a detection electrode and a capacitance detection module. The atomizer is connected to the housing, and a smoke oil storage body is provided inside the atomizer. The detection electrode is arranged in the e-liquid storage body or outside the e-liquid storage body, and the detection electrode and the outer casing form a capacitor. The capacitance detection module is used to detect the capacitance value of the capacitor, and determine the amount of e-liquid in the e-liquid storage body according to the capacitance value.

In one embodiment, the capacitance detection module is connected to the detection electrode; the housing is grounded.

In one embodiment, the electronic atomization device further includes a heating element, a first power switch and a second power switch. The heating element is arranged in the e-liquid storage body and is used to atomize the e-liquid in the e-liquid storage body. The first end of the first power switch is connected to the power supply, the second end of the first power switch is connected to one end of the heating element, and the enabling end of the first power switch is connected to the capacitor detection Module connection. The first end of the second power switch is connected to one end of the heating element, the second end is connected to ground, and the enabling end is connected to the capacitance detection module.

In one embodiment, the electronic atomization device further includes: a heating element disposed in the e-liquid storage body for atomizing the e-liquid in the e-liquid storage body; and a third power switch. wherein the first end of the heating element The capacitance detection module is connected to the detection electrode through the heating element; the first end of the heating element is grounded through the third power switch, and the second end of the heating element is connected to the detection electrode. The terminal is connected to the power supply, and the enable terminal of the third power switch is connected to the capacitance detection module.

In one embodiment, the electronic atomization device further includes a fourth power switch, the second end of the heating element is connected to the power supply through the fourth power switch, and the enable end of the fourth power switch is connected to the fourth power switch. The capacitance detection module is connected as described above.

In one embodiment, the detection electrode is arranged along the direction of change of the e-liquid in the e-liquid storage body.

In one embodiment, the capacitance detection module includes: a capacitance detection chip and a processor. One end of the capacitance detection chip is connected to the detection electrode, and the other end is connected to the processor. Wherein, the capacitance detection chip is used to detect the capacitance value of the capacitor, and transmit the capacitance value to the processor, and the processor is used to determine the amount of e-liquid in the e-liquid storage body according to the capacitance value. .

In one embodiment, the electronic atomization device further includes: a three-axis sensor, and the three-axis sensor is connected to the processor. The three-axis sensor is used to detect the tilt angle of the e-liquid storage body and send the tilt angle to the processor. The processor is also used to determine the e-liquid storage according to the tilt angle. When the e-liquid storage body is in a horizontal state, the amount of e-liquid in the e-liquid storage body is determined based on the capacitance value transmitted by the capacitance detection chip.

In a second aspect, this application also provides a method for detecting the amount of smoke oil, which is applied to the electronic atomization device as mentioned above. The method includes: obtaining a capacitance value of a capacitor, wherein the capacitor is formed by the detection electrode and the housing; and determining the amount of e-liquid in the e-liquid storage body according to the capacitance value.

In one embodiment, determining the amount of e-liquid in the e-liquid storage based on the capacitance value includes: searching in a preset chart based on the capacitance value to determine the e-cigarette corresponding to the capacitance value. The target interval in which the oil amount is located is regarded as the amount of e-liquid in the e-liquid storage body, wherein the preset chart includes the corresponding relationship between the capacitance value and the e-liquid amount in each interval.

In one embodiment, determining the amount of e-liquid in the e-liquid storage body based on the capacitance value further includes: based on the capacitance value, and the relationship between the capacitance value and the amount of e-liquid in the e-liquid storage body. The corresponding relationship between the height of the oil area and the height of the air area in the e-liquid storage body, calculating the height of the e-liquid area in the e-liquid storage body; and obtaining the amount of e-liquid based on the height of the e-liquid area.

In one embodiment, the height of the e-liquid area in the e-liquid storage body is calculated by the following formula:

Among them, h1+h2=H, C represents the capacitance value, ε1 is the dielectric constant of air, ε2 is the dielectric constant of e-liquid, h1 is the height of the e-liquid area of the e-liquid storage body, h2 is the air area in the e-liquid storage body Height, Ry is the radius of the shell, Rx is the radius of the detection electrode, H represents the height of the e-liquid storage body, where the H value is a known fixed value.

In one embodiment, determining the amount of e-liquid in the e-liquid storage body based on the capacitance value includes: based on the current capacitance value, a preset capacitance value when the e-liquid storage body is full of e-liquid, and The preset capacitance value when the e-liquid storage body is full of air is used to calculate the amount of e-liquid in the e-liquid storage body. The formula is:

Among them, Q represents the amount of e-liquid in the e-liquid storage body, C represents the current capacitance value of the capacitor, C _full represents the capacitance value when the e-liquid storage body is full of e-liquid, and C0 represents that the e-liquid storage body is full of e-liquid. capacitance in air.

In a third aspect, this application also provides an e-liquid amount detection device for detecting the e-liquid amount in an electronic atomization device. The electronic atomization device includes a housing, an atomizer, a detection electrode and a capacitance detection module. The detection electrode is arranged in the e-liquid storage body or outside the e-liquid storage body, and the detection electrode and the housing form a capacitor, wherein the device includes a receiving module and a determining module. The receiving module is used to receive the capacitance value of the capacitor sent by the capacitance detection module; the determining module is used to determine the amount of e-liquid in the e-liquid storage body according to the capacitance value.

In a fourth aspect, this application also provides a computer-readable storage medium. The computer-readable storage medium has a computer program stored thereon, and when the computer program is executed by a processor, the steps described in the second aspect are implemented.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the application will become apparent from the description, drawings and claims.

Description of the drawings

In order to more clearly explain the technical solutions in the embodiments of the present application or the traditional technology, the drawings needed to be used in the description of the embodiments or the traditional technology will be briefly introduced below. Obviously, the drawings in the following description are only for the purpose of explaining the embodiments or the technical solutions of the traditional technology. For the embodiments of the application, those of ordinary skill in the art can also obtain other drawings based on the disclosed drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the electronic atomization device in the first embodiment;

Figure 2 is a schematic structural diagram of the electronic atomization device in the second embodiment;

Figure 3 is a schematic structural diagram of the electronic atomization device in the third embodiment;

Figure 4 is a schematic structural diagram of the electronic atomization device in the fourth embodiment;

Figure 5 is a schematic diagram of the connection structure of various internal components of the electronic atomization device in the second embodiment;

Figure 6 is one of the schematic diagrams of the connection structure of the internal components of the electronic atomization device in the third embodiment;

Figure 7 is the second schematic diagram of the connection structure of the internal components of the electronic atomization device in the third embodiment;

Figure 8 is a schematic diagram of the connection structure of various internal components of the electronic atomization device in the fifth embodiment;

Figure 9 is a schematic diagram of the connection structure of various internal components of the electronic atomization device in the sixth embodiment;

Figure 10 is a schematic flow chart of a method for detecting the amount of smoke oil in an embodiment;

Figure 11 is a schematic diagram of the module structure of a device for detecting the amount of e-liquid in an embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

It will be 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 element.

Methods known to the applicant to detect the amount of e-liquid in atomization equipment include e-liquid resistance detection or capacitive detection. Capacitive detection uses two electrodes close to the e-liquid. When the amount of e-liquid is different, the capacitance value between the two electrodes is different. Therefore, the current amount of e-liquid can be determined by the capacitance value, thereby displaying or prompting the e-liquid to the user. quantity function. However, the structure of capacitive detection is more complex.

In one embodiment of the present application, as shown in Figures 1-4, an electronic atomization device is provided, including: a housing 10, an atomizer 20, a detection electrode 30 and a capacitance detection module 40. The atomizer 20 is connected to the housing 10, and an e-liquid storage body 21 is provided inside the atomizer 20. The detection electrode 30 is arranged inside the e-liquid storage body 21 or outside the e-liquid storage body 21 , and the detection electrode 30 and the housing 10 form a capacitor.

As an embodiment, the atomizer 20 is connected to the housing 10, which may include: the atomizer 20 can be fixedly installed in the housing 10. At this time, the detection electrode 30 is also located in the housing 10, and the detection electrode 30 and the housing form a capacitor. In a specific embodiment, a groove is provided on the casing 10, and the e-liquid storage body 21 in the atomizer 20 is disposed in the groove of the casing 10. The remaining parts may not be disposed in the casing. At this time, the detection electrode 30 is also located Inside the housing 10, the detection electrode 30 and the housing form a capacitor. The specific positional relationship between the atomizer 20 and the housing 10 is not limited in this application, as long as the detection electrode 30 and the housing 10 form a capacitor.

The capacitance detection module 40 is used to detect the capacitance value of the capacitor formed by the detection electrode 30 and the housing 10, and determine the amount of e-liquid in the e-liquid storage body 21 according to the capacitance value.

In specific implementations, the atomizer 20 typically also includes a heating element 22 . The heating element 22 is disposed in the e-liquid storage body 21 and is used to atomize the e-liquid in the e-liquid storage body 21 . The heating element 22 is an element included in all electronic atomization devices. In order to enable the capacitance detection module 40 to detect the capacitance value of the capacitor, in one embodiment, as shown in FIGS. 1 and 2 , the capacitance detection module 40 is connected to the detection electrode 30 ; the housing 10 is grounded. The detection electrode 30 and the heating element 22 are independently provided in the electronic atomization device.

In another implementation, as shown in Figures 3 and 4, the first end of the heating element 22 is connected to the detection electrode 30, and the heating element 22 is The second end of the element 22 is connected to the power supply (not shown), and the capacitance detection module 40 is connected to the detection electrode 30 through the heating element 22 . Compared with the embodiment corresponding to Figures 1 and 2, the embodiment corresponding to Figures 3 and 4 can save wiring in the electronic atomization device (in the embodiment corresponding to Figures 1 and 2, the heating element 22 and the detection electrode 30 need to be wired respectively, Figure 3 and 4 only require wiring of the heating element 22).

The medium between the detection electrode 30 and the housing 10 may include e-liquid (when the e-liquid storage body 21 is full of e-liquid), e-liquid and air (when the e-liquid storage body 21 is not full), or air (when the e-liquid storage body 21 is not full). There are three situations (when there is no e-liquid in the oil storage body 21). Since the dielectric constants of e-liquid and air are different, as the e-liquid in the e-liquid storage body 21 decreases, the ratio of e-liquid and air in the e-liquid storage body 21 changes, resulting in a corresponding capacitance value of the capacitor. Variety.

Among them, there is air and e-liquid between the detection electrode 30 and the housing 10, and their respective capacitance calculation formulas are as follows:

Among them: C1 is the capacitance value of the air area in the e-liquid storage body 21; C2 is the capacitance value of the e-liquid area in the e-liquid storage body 21; ε1 is the dielectric constant of the air; ε2 is the dielectric constant of the e-liquid; h1 is the e-liquid. The height of the air in the storage body 21; h2 is the height of the e-liquid in the e-liquid storage body 21; Ry is the radius of the shell assembly; Rx is the radius of the detection electrode.

The capacitance C of the capacitor formed by the detection electrode 30 and the housing 10 (equivalent to C1 and C2 connected in parallel) is:

According to the above calculation formula, it can be seen that when the overall structural size of the e-liquid storage body 21 remains unchanged, the capacitance value C has a corresponding relationship with the height h1 of the air area and the height h2 of the e-liquid area. That is, when the liquid level height of the e-liquid changes, the capacitance value C The value C changes accordingly, so that the current liquid level of the e-liquid can be determined based on the capacitance value C.

As an embodiment, determining the amount of e-liquid in the e-liquid storage body 21 according to the capacitance value may specifically include:

Calculate the height of the e-liquid area in the e-liquid storage body according to the capacitance value and the corresponding relationship between the capacitance value and the height of the e-liquid area and the height of the air area in the e-liquid storage body; and

The amount of e-liquid is obtained according to the height of the e-liquid area.

Specifically, the current capacitance value of the capacitor is detected through the capacitance detection module 40 . For each electronic atomization device, the size of the e-liquid storage body 21 is fixed, that is, the height of the e-liquid storage body is fixed. Assume that the height of the e-liquid storage body is H, and the height of the e-liquid storage body is equal to the sum of the e-liquid height h1 and the air height h2 in the e-liquid storage body, that is, H=h1+h2. The current capacitance value can be transformed into:

In the above formula, only the e-liquid height h1 is unknown. According to the above formula, the e-liquid height can be calculated, that is, the e-liquid storage The amount of e-liquid stored in the body.

As another embodiment, determining the amount of e-liquid in the e-liquid storage body 21 according to the capacitance value may specifically include:

Search the preset chart according to the capacitance value to determine the target interval in which the amount of e-liquid corresponding to the capacitance value is located, and use the target interval as the amount of e-liquid in the e-liquid storage body, wherein the preset Assume that the chart includes the corresponding relationship between the capacitance value and the e-liquid volume in various intervals.

As another embodiment, in order to quickly inform the user of the amount of e-liquid in the e-liquid storage body, two capacitance values can be stored in advance, that is, the first capacitance value when the e-liquid storage body is full of e-liquid and the e-liquid content can be pre-stored. The second capacitance value when the memory bank is completely filled with air. Then a corresponding chart is established according to the first capacitance value and the second capacitance value, that is, multiple intervals are divided between the e-liquid amount corresponding to the first capacitance value and the e-liquid amount corresponding to the second capacitance value. Each interval corresponds to the percentage of e-liquid in the e-liquid storage. As an example, the amount of e-liquid is divided into 5 intervals: 0-20%, 20%-40%, 40%-60%, 60%-80%, 80%-100%, and the two endpoints of each interval are determined. Corresponding capacitance value. During use, according to the current capacitance value of the detection capacitor, the interval where the current capacitance value is located can be determined, thereby determining the interval to which the amount of e-liquid in the current e-liquid storage body belongs.

Calculate the amount of e-liquid in the e-liquid storage body based on the current capacitance value, the preset capacitance value when the e-liquid storage body is full of e-liquid, and the preset capacitance value when the e-liquid storage body is full of air. The formula is as follows:

Among them, Q represents the amount of e-liquid in the e-liquid storage body, C represents the current capacitance value of the capacitor, C _full represents the capacitance value when the e-liquid storage body 21 is full of e-liquid, and C0 represents when the e-liquid storage body 21 is full of air. capacitance value.

In the electronic atomization device provided in this embodiment, a detection electrode is provided in the e-liquid storage body or outside the e-liquid storage body, so that the detection electrode and the outer shell of the electronic atomization device form a capacitor. The capacitance value of the capacitor will change with the difference in the medium between the detection electrode and the casing, that is, the capacitance value will change with the change in the amount of e-liquid and air between the detection electrode and the casing. For example, when the amount of e-liquid decreases, there will be less e-liquid and more air between the detection electrode and the casing. Because the dielectric constants of the e-liquid and air are different, the capacitance value will change accordingly. Therefore, in this application, the shell of the electronic atomization device itself and the detection electrode are used to form a capacitor, and the amount of e-liquid in the e-liquid storage body is detected according to the capacitance value of the capacitor. Compared with the method of setting two electrodes close to the e-liquid, the structure is simpler , the cost is also lower.

As an embodiment, based on the embodiment shown in Figures 1 and 2, in order to avoid being affected by the operation of the heating element 22 during the process of testing the e-liquid amount, referring to Figure 5, the electronic atomization device also includes: a first Power switch 50 and second power switch 60 . The first end of the first power switch 50 is connected to the power supply, the second end of the first power switch 50 is connected to the second end of the heating element 22, and the enabling end of the first power switch 50 is connected to the capacitance detection module 30; Power switch 60 The first end of the second power switch 60 is connected to the first end of the heating element 22 , the second end of the second power switch 60 is connected to ground, and the enable end of the second power switch 60 is connected to the capacitance detection module 30 .

In this embodiment, two power switches are provided: a first power switch 50 and a second power switch 60. The first power switch 50 is located between the atomizer 20 and the power supply. Specifically, one end of the first power switch 50 is connected to the power supply. connection, and the other end is connected to the second end of the heating element 22. The heating element 22 is also connected to ground via a second power switch 60 . The enable terminals (ie control terminals) of the first power switch 50 and the second power switch 60 are respectively connected to the capacitance detection module 30 . When obtaining the capacitance value of the capacitor, the capacitance detection module 30 sends a disconnection instruction to the enable terminals of the first power switch 50 and the second power switch 60 , and disconnects the connection between the power supply and the heating element 22 through the first power switch 50 . connection, and the connection between the heating element 22 and ground is disconnected through the second power switch 60 . In this way, when obtaining the capacitance value of the capacitor, the capacitance detection module 30 detects the capacitance value of the detection electrode 30 , thereby obtaining the capacitance value of the capacitor composed of the detection electrode 30 and the housing 10 .

As an embodiment, based on the embodiment shown in FIG. 3 and FIG. 4 , referring to FIG. 6 , the electronic atomization device further includes: a third power switch 70 . One end of the heating element 22 is connected to the ground through the third power switch 70 , the other end of the heating element 22 is connected to the power supply, and the enable end of the third power switch 70 is connected to the capacitance detection module 40 .

In this embodiment, the third power switch 70 is disposed between the heating element 22 and the ground, and the enable end of the third power switch 70 is connected to the capacitance detection module 40 . In this way, when testing the capacitance, the capacitance detection module 40 controls the third power switch 70 to be turned off, so that the heating element 22 does not work, thereby preventing the heating element 22 from affecting the measurement of the capacitance value. At this time, the capacitance detection module 40 detects the capacitance value of the detection electrode 30 to obtain the capacitance value of the capacitor composed of the detection electrode 30 and the housing 10 .

In specific implementation, based on the embodiments shown in Figures 3 and 4, the electronic atomization device can also be provided with two power switches. As shown in Figure 7, the electronic atomization device includes a third power switch 70 and a fourth power switch 80. , wherein the first end of the heating element 22 is connected to ground through the third power switch 70 , and the second end is connected to the power source through the fourth power switch 80 . The enable terminal of the fourth power switch is connected to the capacitance detection module.

Based on the above embodiment, it should be noted that in order to ensure the accuracy of the detection results, in this embodiment, the detection electrode 30 is arranged along the direction of change of the e-liquid in the e-liquid storage body 21, that is, the length direction of the detection electrode 30 is in line with the e-liquid storage body 21. The horizontal direction of the e-liquid in 21 is vertical.

Based on the above embodiments, as shown in Figures 8 and 9, the capacitance detection module 40 includes: a capacitance detection chip 41 and a processor 42. One end of the capacitance detection chip 41 is connected to the detection electrode 30, and the other end is connected to the processor 42; wherein, The capacitance detection chip 41 is used to detect the capacitance value of the capacitor and transmit the capacitance value to the processor 42. The processor 42 is used to determine the amount of e-liquid in the e-liquid storage body 21 according to the capacitance value. In this embodiment, the processor 42 is adaptively connected to the enable end of the corresponding power switch, as shown in Figures 8 and 9.

Based on the above embodiments, the electronic atomization device further includes:

A three-axis sensor (not shown), the three-axis sensor is connected to the processor 42;

The three-axis sensor is used to detect the tilt angle of the e-liquid storage body 21 and send the tilt angle to the processor 42. The processor 42 is also used to detect the chip based on the capacitance when it is determined that the e-liquid storage body 21 is in a horizontal state based on the tilt angle. The capacitance value transmitted by 41 determines the amount of e-liquid in the e-liquid storage body 21 .

In order to ensure the accuracy of the detection results, the electronic atomization device of this embodiment also includes a three-axis sensor. The three-axis sensor can detect the tilt angle of the e-liquid storage body 21. When the e-liquid storage body 21 is in a horizontal state (that is, the detection electrode 30 perpendicular to the liquid level of the e-liquid in the e-liquid storage body 21) to detect the capacitance value to avoid the problem of inaccurate capacitance detection results when the electronic atomizer device is at an inclined angle.

Based on the same inventive concept, embodiments of the present application also provide a method for detecting the amount of e-liquid based on the above-mentioned electronic atomization device. The solution to the problem provided by this method is similar to the solution recorded in the above-mentioned electronic atomization device. Therefore, the specific limitations in the embodiments of one or more e-liquid volume detection methods provided below can be found in the above article. The limitations of electronic atomization devices will not be repeated here.

In one embodiment, as shown in Figure 10, a method for detecting the amount of smoke oil is provided, including:

Step S100, obtain the capacitance value of the capacitor, wherein the capacitor is formed by a detection electrode and a shell;

Specifically, this method can be applied to the electronic atomization device described in any of the above embodiments. In this embodiment, the capacitance value of the capacitor is first obtained, where the capacitance is formed by the detection electrode and the casing as described in any of the above embodiments. The specific structure of the electronic atomization device will not be described again here.

Step S200: Determine the amount of e-liquid in the e-liquid storage body according to the capacitance value.

After obtaining the capacitance value, the processor can determine the amount of e-liquid in the e-liquid storage based on the detected capacitance value. Specifically, as a first implementation, determining the amount of e-liquid in the e-liquid storage body according to the capacitance value includes:

Search the preset chart according to the capacitance value to determine the target interval in which the e-liquid amount corresponding to the capacitance value is located, and use the target interval as the e-liquid amount in the e-liquid storage body, wherein the preset Assume that the chart includes the corresponding relationship between the capacitance value and the e-liquid volume in various intervals.

In order to quickly inform the user of the amount of e-liquid in the e-liquid storage body, two capacitance values can also be stored in advance, that is, the first capacitance value when the e-liquid storage body is full of e-liquid, and the first capacitance value when the e-liquid storage body is full of air. the second capacitance value. Then a corresponding chart is established based on the first capacitance value and the second capacitance value, that is, the amount of e-liquid corresponding to the two capacitance values is divided into multiple intervals, and each interval corresponds to the percentage of e-liquid in the e-liquid storage body. As an example, the amount of e-liquid is divided into 5 intervals: 0-20%, 20%-40%, 40%-60%, 60%-80%, 80%-100%, and the two endpoints of each interval are determined. Corresponding capacitance value. During use, according to the current capacitance value of the detected capacitor, the interval in which the current capacitance value is located can be determined, thereby determining the interval to which the amount of e-liquid in the current e-liquid storage body belongs.

As a second implementation manner, determining the amount of e-liquid in the e-liquid storage body according to the capacitance value further includes:

Calculate the height of the e-liquid area in the e-liquid storage body according to the capacitance value and the corresponding relationship between the capacitance value and the height of the e-liquid area in the e-liquid storage body and the height of the air area in the e-liquid storage body;

Specifically, the size of the e-liquid storage body in a certain electronic atomization device is fixed, that is, the height of the e-liquid storage body is fixed. Assume that the height of the e-liquid storage body is H, and the height of the e-liquid storage body is equal to the sum of the e-liquid height h1 and the air height h2 in the e-liquid storage body, that is, H=h1+h2. The current capacitance value C can be:

Among them, ε1 is the dielectric constant of air; ε2 is the dielectric constant of e-liquid; h1 is the height of e-liquid in the e-liquid storage body; h2 is the height of the air in the e-liquid storage body; Ry is the radius of the shell component; Rx is the electrode radius.

In the above formula, only the e-liquid height h1 is unknown. According to the above formula, the e-liquid height can be calculated, that is, the amount of e-liquid stored in the body. This embodiment can relatively accurately inform the user of the amount of e-liquid in the e-liquid storage body.

As a third implementation, determining the amount of e-liquid in the e-liquid storage body based on the capacitance value may specifically include:

Calculate the amount of e-liquid in the e-liquid storage body based on the current capacitance value, the preset capacitance value when the e-liquid storage body is full of e-liquid, and the preset capacitance value when the e-liquid storage body is full of air.

Among them, Q represents the amount of e-liquid in the e-liquid storage body, C represents the current capacitance value of the capacitor, C _full represents the capacitance value when the e-liquid storage body 21 is full of e-liquid, and C0 represents the capacitance value when the e-liquid storage body 21 is filled with air. The calculation method of this embodiment is relatively simple, but the accuracy is between the above-mentioned first embodiment and the second embodiment.

In the embodiment provided by this application, a detection electrode is provided inside the e-liquid storage body or outside the e-liquid storage body, so that the detection electrode and the outer shell of the electronic atomization device form a capacitor. The capacitance value of the capacitor will change as the medium between the detection electrode and the casing changes, that is, the capacitance value will change as the amount of e-liquid and air between the detection electrode and the casing changes. For example, the amount of e-liquid becomes less, There is less e-liquid and more air between the detection electrode and the shell. Because the dielectric constants of the e-liquid and air are different, the capacitance value will change accordingly. Therefore, in this application, the shell of the electronic atomization device itself and the detection electrode are used to form a capacitor, and the amount of e-liquid in the e-liquid storage body is detected according to the capacitance value of the capacitor. Compared with the method of setting two electrodes close to the e-liquid, the structure is simpler. The cost is also lower.

It should be understood that although the steps in the flowcharts involved in the above-mentioned embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated in this article, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Furthermore, at least some of the steps in the flowcharts involved in the above-mentioned embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be combined with other steps or steps in other steps. At least part of the steps or phases are performed in turns or alternately.

In one embodiment, as shown in Figure 11, an e-liquid amount detection device is provided, which includes:

The receiving module 110 is used to receive the capacitance value of the capacitor sent by the capacitance detection module, wherein the capacitor is formed by the detection electrode and the shell of the electronic atomization device;

The determination module 120 is used to determine the amount of e-liquid in the e-liquid storage body according to the capacitance value.

Each module in the above-mentioned oil quantity detection device can be realized in whole or in part by software, hardware and combinations thereof. Each of the above modules may be embedded in or independent of the processor of the computer device in the form of hardware, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above embodiments of the e-liquid amount detection method are implemented.

The above-mentioned electronic atomization device, e-liquid amount detection method and device, and readable storage medium are provided with detection electrodes in the e-liquid storage body or outside the e-liquid storage body, so that the detection electrodes and the shell of the electronic atomization device form a capacitor. The capacitance value of the capacitor will change as the medium between the detection electrode and the casing changes, that is, the capacitance value will change as the amount of e-liquid and air between the detection electrode and the casing changes. For example, the amount of e-liquid becomes less, There is less e-liquid and more air between the detection electrode and the shell. Because the dielectric constants of the e-liquid and air are different, the capacitance value will change accordingly. Therefore, in this application, the shell of the electronic atomization device itself and the detection electrode are used to form a capacitor, and the amount of e-liquid in the e-liquid storage body is detected based on the capacitance value of the capacitor. The structure is simple and the cost is low.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage. In the media, when executed, the computer program may include the processes of the above method embodiments. Any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetic variable memory (Magnetoresistive memory) Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (Phase Change Memory, PCM), graphene memory, etc. Volatile memory may include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration but not limitation, RAM can be in various forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM). The databases involved in the various embodiments provided in this application may include At least one of a relational database and a non-relational database. Non-relational databases may include blockchain-based distributed databases, etc., but are not limited thereto. The processors involved in the various embodiments provided in this application may be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to this.

The technical features of the above embodiments can be combined in any way. To simplify the description, 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, all possible combinations should be used. It is considered to be within the scope of this manual.

The above-described embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

An electronic atomization device, including:

Housing, atomizer, detection electrode and capacitance detection module;

The atomizer is connected to the housing, and a smoke oil storage body is provided inside the atomizer;

The detection electrode is arranged in the e-liquid storage body or outside the e-liquid storage body, and the detection electrode and the outer casing form a capacitor;

Wherein, the capacitance detection module is used to detect the capacitance value of the capacitor, and determine the amount of e-liquid in the e-liquid storage body according to the capacitance value.
The electronic atomization device according to claim 1, wherein the capacitance detection module is connected to the detection electrode; and the housing is grounded.
The electronic atomization device according to claim 2, wherein the electronic atomization device further includes:

Heating element, the heating element is arranged in the e-liquid storage body and is used to atomize the e-liquid in the e-liquid storage body;

a first power switch and a second power switch;

The first end of the first power switch is connected to the power supply, the second end of the first power switch is connected to one end of the heating element, and the enabling end of the first power switch is connected to the capacitor detection module connection;

The first end of the second power switch is connected to the other end of the heating element, the second end of the second power switch is connected to ground, and the enabling end of the second power switch is connected to the capacitance detection module.
The electronic atomization device according to claim 1, wherein the electronic atomization device further includes:

A heating element is provided in the e-liquid storage body and used to atomize the e-liquid in the e-liquid storage body; and

The third power switch,

Wherein, the first end of the heating element is connected to the detection electrode, and the capacitance detection module is connected to the detection electrode through the heating element; the first end of the heating element is also connected through the third The power switch is grounded, the second end of the heating element is connected to the power supply, and the enabling end of the third power switch is connected to the capacitance detection module.
The electronic atomization device according to claim 4, wherein the electronic atomization device further includes a fourth power switch, the second end of the heating element is connected to a power supply through the fourth power switch, the fourth power switch The enable end of the switch is connected to the capacitance detection module.
The electronic atomization device according to claim 1, wherein the detection electrode is arranged along the direction of change of the e-liquid in the e-liquid storage body.
The electronic atomization device according to claim 1, wherein the capacitance detection module includes: a capacitance detection chip and a processor,

One end of the capacitance detection chip is connected to the detection electrode, and the other end is connected to the processor;

Wherein, the capacitance detection chip is used to detect the capacitance value of the capacitor, and transmit the capacitance value to the processor, and the processor is used to determine the amount of e-liquid in the e-liquid storage body according to the capacitance value.
The electronic atomization device according to claim 7, wherein the electronic atomization device further includes:

A three-axis sensor, the three-axis sensor is connected to the processor;

The three-axis sensor is used to detect the tilt angle of the e-liquid storage body and send the tilt angle to the processor. The processor is also used to determine the e-liquid storage according to the tilt angle. When the e-liquid storage body is in a horizontal state, the amount of e-liquid in the e-liquid storage body is determined based on the capacitance value transmitted by the capacitance detection chip.
A method for detecting the amount of smoke oil, the method is applied to the electronic atomization device according to any one of claims 1 to 8, the method includes:

Obtaining a capacitance value of a capacitor, wherein the capacitor is formed by the detection electrode and the housing; and

The amount of e-liquid in the e-liquid storage body is determined according to the capacitance value.
The method according to claim 9, wherein determining the amount of e-liquid in the e-liquid storage body according to the capacitance value includes:

Search the preset chart according to the capacitance value to determine the target interval in which the amount of e-liquid corresponding to the capacitance value is located, and use the target interval as the amount of e-liquid in the e-liquid storage body, wherein the preset Assume that the chart includes the corresponding relationship between the capacitance value and the e-liquid volume in various intervals.
The method according to claim 9, wherein determining the amount of e-liquid in the e-liquid storage body according to the capacitance value includes:

According to the capacitance value and the corresponding relationship between the capacitance value and the height of the e-liquid area in the e-liquid storage body and the height of the air area in the e-liquid storage body, the e-liquid in the e-liquid storage body is calculated. area height; and

The amount of e-liquid is obtained according to the height of the e-liquid area.
The method according to claim 11, wherein the height of the e-liquid area in the e-liquid storage body is calculated by the following formula:

Among them, h1+h2=H, C represents the capacitance value, ε1 is the dielectric constant of air, ε2 is the dielectric constant of e-liquid, h1 is the height of the e-liquid area in the e-liquid storage body, h2 is the air in the e-liquid storage body Area height, Ry is the radius of the shell, Rx is the radius of the detection electrode, H represents the height of the e-liquid storage body, where the H value is a known fixed value.
The method according to claim 9, wherein determining the amount of e-liquid in the e-liquid storage body according to the capacitance value includes:

Calculate the amount of e-liquid in the e-liquid storage body based on the current capacitance value, the preset capacitance value when the e-liquid storage body is full of e-liquid, and the preset capacitance value when the e-liquid storage body is full of air. The formula is: :

Among them, Q represents the amount of e-liquid in the e-liquid storage body, C represents the current capacitance value of the capacitor, C full represents the capacitance value when the e-liquid storage body is full of e-liquid, and C0 represents that the e-liquid storage body is full of e-liquid. capacitance in air.
An e-liquid amount detection device used to detect the e-liquid amount in an electronic atomization device. The electronic atomization device includes a shell, an atomizer, a detection electrode and a capacitance detection module. The detection electrode is arranged on the cigarette. In the oil storage body or outside the e-liquid storage body, the detection electrode and the outer shell form a capacitor, wherein the e-liquid amount detection device includes:

A receiving module, configured to receive the capacitance value of the capacitor sent by the capacitance detection module; and

Determining module, used to determine the amount of e-liquid in the e-liquid storage body according to the capacitance value.
A computer-readable storage medium with a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of the method described in any one of claims 9 to 13 are implemented.