CN111588094A - Electronic atomization device and control circuit and control method thereof - Google Patents

Abstract

The application provides an electronic atomization device and a control circuit and a control method thereof, and relates to the technical field of electronic atomization. The control circuit comprises an airflow sensor, a power supply capacitor and a control chip, wherein the control chip comprises a logic controller, a unidirectional conduction tube, a switching tube, a power supply pin, an atomization pin and a grounding pin; the logic controller is respectively connected to the first end of the airflow sensor and the first end of the switching tube; the power supply device is connected to a first end of the power supply capacitor and a second end of the switch tube through a power supply pin; the grounding pin is connected to the anode of the unidirectional conduction tube, the second end of the airflow sensor and the second end of the power supply capacitor; the negative electrode of the unidirectional conduction tube is connected to the third end of the switch tube through the atomization pin; the power supply pin and the atomization pin are used for being connected with a power supply module and an atomization module of an external device so as to realize an electronic atomization function. This application is through reducing the quantity of welding lead wire, reduction in production cost and improvement product reliability.

Description

Electronic atomization device, control circuit and control method thereof

technical field

The application belongs to the technical field of electronic atomization, and in particular relates to an electronic atomization device and a control circuit and control method thereof.

Background technique

With the increasing awareness of people's health and environmental protection, more and more users choose to use electronic atomization devices (for example, using electronic cigarettes as a substitute for cigarettes), and the market for electronic atomization devices is also growing. In order to gain an advantage in the fierce market competition, the product quality and production cost of electronic atomization devices are issues that manufacturers need to consider.

At present, in the production process of electronic atomization devices, chip design manufacturers usually assemble control chips, PCB boards and peripheral components into modules for sale, while actual electronic product manufacturers need to combine the modules with the modules. The battery, atomizing wire and casing are assembled to make a complete electronic atomizing device and put it on the market. FIG. 1 shows a schematic diagram of the connection relationship between the control circuit A, the battery S0 and the atomizing wire R0 of the electronic atomization device in the related art. As shown in Figure 1, the control circuit A includes a voltage regulator capacitor C0, an airflow sensor K0 and a control chip A0. In production, it is usually necessary to pass the three pins of the control chip A0 (ie, the VDD pin, the AT pin and the GND pin). Weld the lead wire at the foot) to realize the connection between the control circuit A and the power source S0 and the atomizing wire R0, and then realize the power supply and operation of the electronic atomization device.

However, due to the size limitation of the electronic atomizer device, the PCB board area of the electronic atomizer device is small, and the soldered leads are relatively thin, and manual soldering is usually required. Therefore, the more leads that need to be soldered, the more The higher the production cost and the lower the reliability of product quality. In this way, there are problems of high production cost and low reliability in the production process of the electronic atomization device of the related art.

SUMMARY OF THE INVENTION

The embodiments of the present application provide an electronic atomization device, a control circuit and a control method thereof, which can solve the problems of high production cost and low reliability caused by many leads that need to be welded in the production process of the electronic atomization device in the related art .

In order to achieve the above purpose, in the first aspect, an embodiment of the present application provides a control circuit, including an airflow sensor, a power supply capacitor, and a control chip, where the control chip includes a logic controller, a unidirectional conduction tube and a switch tube, and a power supply pin , atomization pin and ground pin;

Wherein, the logic controller is respectively connected to the first end of the airflow sensor and the first end of the switch tube; the logic controller is connected to the first end of the power supply capacitor through the power supply pin and the second end of the switch tube; the logic controller is connected to the positive electrode of the one-way conduction tube, the second end of the airflow sensor and the second end of the power supply capacitor through the ground pin ; The negative pole of the one-way conducting tube is connected to the third end of the switching tube through the atomizing pin;

Wherein, the power supply pin and the atomization pin of the control chip are used to connect with the power supply module and the atomization module of the peripheral device, so as to realize the electronic atomization function. That is, the control chip is used to control the battery module and the atomization module to form a current path to realize the electronic atomization function.

In a possible implementation manner of the first aspect, the power supply capacitor is used to supply power to the control chip;

The airflow sensor is used to sense airflow intensity through the second end, and output an airflow intensity signal to the logic controller through the first end;

The logic controller is configured to receive the airflow strength signal output from the first end of the airflow sensor, control the on-off state of the switch tube according to the airflow strength signal, and control the switch according to the airflow strength signal Switching frequency and/or conduction duty cycle of the tube to adjust the power of the atomizing module;

Wherein, when the signal strength of the airflow strength signal is less than a preset value, the logic controller controls the switch tube to be in an off state; when the signal strength of the airflow strength signal is greater than or equal to the preset value In the case of , the logic controller controls the switch to be in a conducting state.

In a possible implementation manner of the first aspect, the switch tube is a P-type metal oxide semiconductor (Metal Oxide Semiconductor, MOS) tube; the first end of the switch tube is a gate, and the second end is the source, and the third terminal is the drain.

In another possible implementation manner of the first aspect, the switch tube is an N-type MOS tube; the first end of the switch tube is a gate, the second end is a drain, and the The third terminal is the source.

In a possible implementation manner of the first aspect, the control circuit further includes an indicator light, and the indicator light is used to indicate a use state and/or a power state; wherein, the positive pole of the indicator light is connected to the logic controller , the negative pole of the indicator light is connected to the second end of the airflow sensor.

Further, the indicator light is used to receive the driving signal output by the logic controller, and according to the voltage change of the driving signal, a pulse width modulation (Pulse Width Modulation, PWM) method is used to adjust the brightness of the indicator light and/or flashing mode.

In a second aspect, an embodiment of the present application provides an electronic atomization device, including a power supply module, an atomization module, and the control circuit as described in the first aspect above;

Wherein, the positive pole of the power module is connected to the power pin of the control chip, the negative pole of the power module is connected to the atomization pin of the control chip through the atomization module, and the negative pole of the power module is connected to the atomization pin of the control chip. ground;

Alternatively, the positive electrode of the power supply module is connected to the power supply pin of the control chip through the atomization module, the negative electrode of the power supply module is connected to the atomization pin of the control chip, and the negative electrode of the power supply module is connected to the atomization pin of the control chip. ground.

In a possible implementation manner of the second aspect, the switch tube in the control circuit is a P-type MOS tube; the first end of the switch tube is a gate, and the second end is a source, and the third terminal is a drain;

Wherein, the first end of the switch tube is connected to the logic controller; the second end of the switch tube is connected to the positive pole of the power module through the power supply pin of the control chip; The third end is connected to the negative pole of the power supply module through the atomization pin of the control chip and through the atomization module;

Or, the first end of the switch tube is connected to the logic controller; the second end of the switch tube passes through the power pin of the control chip and the atomization module, and is connected to the power supply module Positive pole; the third end of the switch tube is connected to the negative pole of the power supply module through the atomization pin of the control chip.

In another possible implementation of the second aspect, the switch tube in the control circuit is an N-type MOS tube; the first end of the switch tube is a gate, and the second end is a drain , and the third end is a source;

Wherein, the first end of the switch tube is connected to the logic controller; the second end of the switch tube is connected to the positive pole of the power module through the power supply pin of the control chip; The third end is connected to the negative pole of the power supply module through the atomization pin of the control chip and through the atomization module;

Or, the first end of the switch tube is connected to the logic controller; the second end of the switch tube passes through the power pin of the control chip and the atomization module, and is connected to the power supply module Positive pole; the third end of the switch tube is connected to the negative pole of the power supply module through the atomization pin of the control chip.

In a possible implementation manner of the second aspect, when the signal strength of the airflow strength signal is less than a preset value, the power module, the atomization module, the power supply capacitor and the one-way conduction tube form a first current the power supply module to charge the power supply capacitor; and the power supply module, the atomization module, the logic controller and the one-way conductive tube form a second current path, so that the power supply module can charge to the power supply capacitor; the logic controller is powered;

And, when the signal strength of the airflow strength signal is greater than or equal to the preset value, the power module, the atomization module and the switch tube form a third current path, so that the atomization module The switching frequency and/or the on-duty ratio of the switch tube to adjust the amount of e-liquid atomization; and the logic controller and the power supply capacitor form a fourth current path, so that the power supply capacitor sends the logic controller to the power supply capacitor. powered by.

In a possible implementation manner of the second aspect, the electronic atomization device further includes a switch module, and the switch module is configured to control the electronic atomization device to activate the switch module according to an operation instruction of the user on the switch module. Toggle between state and disabled state.

In a possible implementation of the second aspect, the electronic atomization device further includes a casing and an electric control board; wherein, the control circuit is provided on the electric control board, and the electric control board accommodates in the casing.

In a third aspect, an embodiment of the present application provides a method for controlling an electronic atomization device, the electronic atomization device includes a logic controller, a switch tube, an airflow sensor, a battery, a capacitor and an atomizer, and the method includes:

The logic controller controls the on-off state of the switch tube according to the airflow intensity signal, the on-off state includes an off state and an on state, and the airflow intensity signal is generated according to the airflow intensity sensed by the airflow sensor ;

When the switch tube is in the off state, the battery charges the capacitor and supplies power to the logic controller;

When the switch tube is in the conducting state, the capacitor discharges to the logic controller, and the atomizer performs the atomization of the e-liquid.

In a possible implementation manner of the third aspect, the logic controller controls the on-off state of the switch tube according to the airflow intensity signal, including:

When the signal strength of the airflow strength signal is less than a preset value, the logic controller controls the switch tube to be in an off state;

When the signal strength of the airflow strength signal is greater than or equal to the preset value, the logic controller controls the switch tube to be in a conducting state.

In a possible implementation manner of the third aspect, the method further includes: the logic controller controls the switching frequency and/or the on-duty ratio of the switch tube according to the airflow intensity signal, so as to adjust the The power of the atomizer.

In a possible implementation manner of the third aspect, the method further includes: the logic controller adjusts the indication in the electronic atomization device by using a pulse width modulation (PWM) method according to the voltage change of the airflow intensity signal The brightness and/or flashing pattern of the light.

In a possible implementation manner of the third aspect, before the logic controller controls the on-off state of the switch tube according to the airflow intensity signal, the method further includes: in response to the user's electronic atomization The opening command of the on-off valve in the device, the on-off valve is closed, so that the electronic atomization device is in an enabled state.

In a possible implementation manner of the third aspect, the switch transistor is a P-type MOS transistor or an N-type MOS transistor.

In a fourth aspect, an embodiment of the present application provides an electronic device, the electronic device includes a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor to realize the above-mentioned first step. The steps of the method of controlling an electronic atomization device of the three aspects.

In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the control electronic atomization device in the above-mentioned first aspect is realized. steps of the method.

In a sixth aspect, an embodiment of the present application provides a computer program product that, when the computer program product runs on a terminal device, enables the terminal device to execute the method for controlling an electronic atomization device according to any one of the first aspects above.

The beneficial effects that the embodiments of the present application have compared with the prior art are:

In the technical solution provided by the embodiments of the present application, by optimizing the control circuit, welding leads at the power supply pin VDD and the atomization pin AT of the control chip, and connecting with the power supply module and the atomization module, the electronic atomization function can be realized . Compared with the use of three welding leads in the related art, the embodiment of the present application can ensure the normal operation and control of the electronic atomization device, and the ground pin GND of the control chip does not need welding leads, so the number of welding leads that need to be drawn out is reduced from three wires. There are two wires, so the embodiment of the present application can not only optimize the layout design of the PCB, but also reduce the production cost caused by the wire bonding, and at the same time, can effectively avoid the failure risk caused by manual operation.

It can be understood that, for the beneficial effects of the foregoing second aspect to the sixth aspect, reference may be made to the relevant descriptions in the foregoing first aspect, and details are not described herein again.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic circuit diagram of an electronic atomization device provided by the related art;

FIG. 2 is one of the schematic diagrams of the control circuit provided by the embodiment of the present application;

3 is the second schematic diagram of the control circuit provided by the embodiment of the present application;

FIG. 4 is the third schematic diagram of the control circuit provided by the embodiment of the present application;

FIG. 5 is the fourth schematic diagram of the control circuit provided by the embodiment of the present application;

6 is a schematic structural diagram of an electronic atomization device provided by an embodiment of the present application;

7 is one of the schematic diagrams of circuit connections of the electronic atomization device provided by the embodiment of the present application;

8 is the second schematic diagram of the circuit connection of the electronic atomization device provided by the embodiment of the present application;

9 is the third schematic diagram of the circuit connection of the electronic atomization device provided by the embodiment of the present application;

10 is the fourth schematic diagram of the circuit connection of the electronic atomization device provided by the embodiment of the present application;

11 is the fifth schematic diagram of the circuit connection of the electronic atomization device provided by the embodiment of the present application;

12 is a schematic flowchart of a method for controlling an electronic atomization device provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

Aiming at the technical problems of high production cost and low reliability due to many leads that need to be welded in the current electronic atomization device production process, the embodiments of the present application provide a control circuit and an electronic atomization device including the control circuit and a method for controlling an electronic atomization device, by optimizing the control circuit, the number of welding leads in the control circuit of the electronic atomization device is reduced from three to two without affecting the use effect of the electronic atomization device. The production cost is greatly reduced, and the reliability of the electronic atomization device is guaranteed at the same time.

The control circuit, the electronic atomization device and the method for controlling the electronic atomization device provided by the present application will be described in detail below with reference to the accompanying drawings with specific embodiments. It should be noted that since the following control circuit, electronic atomization device and method for controlling the electronic atomization device are based on the same concept, the same or similar concepts or processes may not be repeated in some embodiments.

Control circuit

FIG. 2 shows a circuit diagram of a control circuit provided by an embodiment of the present application. As shown in FIG. 2 , the control circuit 1 includes an airflow sensor 11 , a power supply capacitor 12 and a control chip 13 .

In the embodiment of the present application, the control chip 13 includes a logic controller M1, a unidirectional conduction transistor D1 and a switch transistor K1. The control chip 13 also includes a power pin VDD (ie, the power pin of the chip), an atomization pin AT (ie, the output pin of the chip), and a ground pin GND (ie, the ground pin of the chip).

As shown in FIG. 2 , the logic controller M1 is connected to the first end a ₁ of the airflow sensor 11 through the pin SW of the control chip 13 . The logic controller M1 is connected to the first end b ₁ of the switch tube K1 . The logic controller M1 is connected to the first terminal c ₁ of the power supply capacitor 12 (eg, the upper plate of the capacitor) and the second terminal b ₂ of the switch tube K1 through the power supply pin VDD. The logic controller M1 is connected to the positive electrode of the unidirectional conduction tube D1, the second end a2 of the airflow sensor 11 and the _second end c2 of the power supply capacitor ₁₂ (eg, the lower plate of the capacitor) through the ground pin GND. The negative electrode of the one-way conduction tube D1 is connected to the third end b ₃ of the switch tube K1 through the atomization pin AT of the control chip 13 .

Among them, the power supply pin VDD and the atomization pin AT of the control chip 13 are respectively used to connect with peripheral modules (such as the power supply module and the atomization module) to realize the electronic atomization function (the electronic cigarette function is used as an example for description below). ). That is, the control chip is used to control the battery module and the atomization module to form a current path to realize the electronic atomization function. It should be noted that the specific connection relationship between the control chip 13 and the peripheral module will be described in detail in the following embodiments of the electronic atomization device, and will not be repeated here.

In the design of the traditional electronic atomization device shown in FIG. 1 , the ground pin GND needs to be welded with a connecting lead to be connected to the negative electrode of the battery S0, while in the control circuit provided by the embodiment of the present application, the ground pin GND does not need to be welded. Connect the leads, so as to realize the design of reducing the number of welding leads from three to two.

2 , the working principle of the control circuit provided by the embodiment of the present application is described by analyzing the flow direction of the signal flow between the various modules in the control circuit.

As shown in FIG. 2, the power supply capacitor 12 and the logic controller M1 may form a current path. In the case of forming a current path, the power supply capacitor 12 can supply power to the logic controller M1 by discharging.

It should be noted that the power supply capacitor 12 needs to be pre-charged (for example, by the power supply module of the peripheral device), so as to supply power to the logic controller M1 when the power supply capacitor 12 and the logic controller M1 form a current path, that is, when the power supply capacitor 12 and the logic controller M1 form a current path During the smoking process of the user, the power supply capacitor 12 can supply power to the logic controller M1. The charging process and discharging process of the power supply capacitor 12 will be described in detail below, and will not be repeated here.

As shown in FIG. 2 , the power supply capacitor 12 , the switch tube K1 and the one-way conduction tube D1 can also form a current path. In the case of forming a current path (that is, the switch tube K1 is in a conducting state), the power supply capacitor 12 and the unidirectional conduction tube D1 can form a bootstrap circuit.

Optionally, in the embodiment of the present application, the power supply capacitor 12 may include one or more capacitors, or may include any other device with charging and discharging functions, which may be determined according to actual use requirements, which is not limited in the embodiment of the present application.

Optionally, in the embodiment of the present application, the one-way conduction tube D1 may include a diode, or may be any other device with a one-way conduction function, which may be determined according to actual use requirements, which is not limited in the embodiment of the present application.

In the embodiment of the present application, the one-way conducting tube D1 has the following technical effects: the circuit is turned on when the user is not smoking, so that the battery module charges the power supply capacitor 12, and the discharge loop of the power supply capacitor 12 is restricted during the smoking process of the user, so that the The power supply capacitor 12 completely supplies power to the control chip 13 .

It should be noted that, compared with the capacitor C0 in the control circuit of the related art shown in FIG. 1 , which acts as a voltage regulator, in the embodiment of the present application, by setting the unidirectional conducting tube D1 in the control circuit, the power supply capacitor can be supplied by the power supply capacitor when the user smokes. 12 is for the purpose of supplying power to the control chip 13 , thus ensuring that the electronic atomization function can still be normally achieved in the case of changing the three welding leads to two welding leads in the embodiment of the present application.

Referring to FIG. 2 again, the airflow sensor 11 can sense the airflow intensity through the _second end a2, and then the airflow sensor 11 can convert the airflow intensity into an airflow intensity signal, and then output the airflow intensity signal to the logic controller M1 through the _first end a1. .

It can be understood that when the user smokes through the _second end a2 of the airflow sensor 11, the airflow sensor 11 can sense the airflow intensity through the _second end a2.

In the embodiment of the present application, during the smoking process of the user, the airflow sensor 11 can be used to detect the presence or absence and size of the airflow, and convert it into a level signal and output it to the control chip 13 . The airflow sensor 11 may also be referred to as a microphone switch, a pneumatic switch or a microphone sensor.

Referring to FIG. 2 again, the logic controller M1 is used to receive the airflow intensity signal output by the _first end a1 of the airflow sensor 11, control the on-off state of the switch tube K1 according to the airflow intensity signal, and control the switch tube K1 according to the airflow intensity signal. switching frequency and/or on-duty cycle to adjust the power of the atomizing module.

The on-off state of the switch tube K1 includes an on-state and an off-state. The switching frequency of the switch tube K1 may refer to the number of times the switch tube K1 is turned on within a certain period of time. The on-duty ratio of the switch tube K1 may refer to the ratio of the on-time to the total time in one pulse cycle.

Exemplarily, when the signal strength of the airflow strength signal is less than the preset value (corresponding to the situation when the user does not smoke), the logic controller M1 controls the switch tube K1 to be in an off state. And, when the signal strength of the airflow strength signal is greater than or equal to the preset value (corresponding to the user smoking), the logic controller M1 controls the switch tube K1 to be in an on state.

The foregoing preset value may be set according to an actual situation, which is not limited in this embodiment of the present application.

Optionally, in the embodiment of the present application, the above-mentioned switch tube K1 may be a MOS tube, or may be any other transistor that meets actual use requirements. For example, the switch tube K1 may be a junction field effect transistor. Specifically, it may be set according to actual usage requirements, which is not limited in this embodiment of the present application.

It can be understood that, in the control circuit provided by the embodiment of the present application, the switch tube K1 can play a switching role. On the one hand, when the signal strength of the airflow strength signal is less than the preset value, that is, when the user is not smoking, the switch tube K1 is in an off state, which is equivalent to the switch being in an off state. On the other hand, when the signal strength of the airflow strength signal is greater than or equal to the preset value, that is, when the user is smoking, the switch tube K1 is in a conducting state, which is equivalent to the switch being in a closed state. In short, the logic controller M1 can control the switch tube K1 to open when the user is not smoking, and to close when the user is smoking.

Specifically, the logic controller M1 is used for receiving the smoking signal transmitted by the airflow sensor 11, and after processing and modulating the smoking signal, it drives the switch tube K1, so that the switch tube K1 is turned on, so that the atomizing wire in the atomizing module is heated Atomized smoke oil.

In the embodiment of the present application, the switch transistor K1 may be a P-type MOS transistor or an N-type MOS transistor. The switch tube K1 is different, and the connection relationship of the control circuit is different, which will be described below.

The first case: the switch tube K1 is a P-type MOS tube

FIG. 3 shows a schematic diagram of the control circuit in the case that the switch tube K1 is a P-type MOS tube. Referring to FIG. 3 , the switch tube K1 is a P-type MOS tube, the first end b ₁ of the switch tube K1 is the gate, the second end b ₂ is the source, and the third end b ₃ is the drain.

Exemplarily, when the signal strength of the airflow strength signal is greater than or equal to the preset value, that is, when the user is smoking, the switch tube K1 is in a conducting state (equivalent to the switch being closed), and the switch tube K1 may allow a larger Current flows from the second terminal b ₂ (source) to the third terminal b ₃ (drain).

The second case: the switch tube K1 is an N-type MOS tube

FIG. 4 shows a schematic diagram of the control circuit in the case that the switch tube K1 is an N-type MOS tube. Referring to FIG. 4 , the switch tube K1 is an N-type MOS tube, the first end b ₁ of the switch tube K1 is the gate, the second end b ₂ is the drain, and the third end b ₃ is the source.

Exemplarily, when the signal strength of the airflow strength signal is greater than or equal to the preset value, that is, when the user is smoking, the switch tube K1 is in a conducting state (equivalent to the switch being closed), and the switch tube K1 can allow a larger Current flows from the second terminal b ₂ (drain) to the third terminal b ₃ (source).

In a possible implementation manner, with reference to FIG. 2 , as shown in FIG. 5 , the control circuit 1 may further include an indicator light L1 , and the positive pole of the indicator light L1 is connected to the logic controller M1 through the pin LED of the control chip 13 . ; The negative pole of the indicator light M1 is connected to the second end c ₂ of the power supply capacitor 12 and the second end a ₂ of the airflow sensor 11 .

Among them, the indicator light L1 can be driven by the control chip 13 to indicate the smoking status or state of the user when using the electronic atomization device, and can also indicate the power status of the electronic atomization device, or can simultaneously indicate the use state of the electronic atomization device. (For example, smoking state) and power state, which may be specifically determined according to actual usage requirements, which are not limited in the embodiments of the present application.

Optionally, in the embodiment of the present application, the indicator light L1 can be used to receive the driving signal output by the logic controller M1, and according to the voltage change of the driving signal, the brightness and/or flashing light of the indicator light can be adjusted by means of pulse width modulation PWM. Way.

In this way, the brightness of the indicator light can be changed according to the smoking intensity of the user, which truly simulates the lighting state of the cigarette when the user is smoking.

In addition, the user can observe the flashing mode of the indicator light to know whether the power of the electronic atomization device is sufficient. For example, if the indicator light shows green, it indicates that the current power of the electronic atomization device is sufficient; if the indicator light shows red, it indicates that the current power of the electronic atomization device is insufficient.

In the embodiment of the present application, the above-mentioned indicator light L1 may be a light emitting diode (Light Emitting Diode, LED), and of course, it may be any other light emitting device that meets the actual use requirements, which can be specifically determined according to the actual use requirements, which is not limited in the embodiments of the present application .

In the control circuit provided by the embodiments of the present application, by optimizing the control circuit, the lead wire that originally needs to be connected to the negative electrode of the battery does not need to be drawn out of the control circuit without affecting the use effect of the electronic atomization device, so the number of welding wires is reduced from three. To two (the lead at the ground pin GND is omitted), the production cost is greatly reduced, and the reliability of the product is guaranteed at the same time.

Electronic atomization device

2 , as shown in FIG. 6 , an embodiment of the present application further provides an electronic atomization device, the electronic atomization device includes the control circuit 1 introduced in the above embodiment, and the electronic atomization device further includes a power module 2 and a Atomization module 3.

Optionally, in the embodiment of the present application, the electronic atomization device may be a heating atomization device, such as an electronic cigarette, or an inhalation energy bar, or may be any other possible electronic atomization device, which can be specifically based on actual use requirements. It is determined that the embodiments of the present application are not limited.

For the convenience of description and understanding, the electronic atomization device provided by the embodiment of the present application is exemplarily described below by taking the electronic atomization device as an electronic cigarette as an example.

In the embodiment of the present application, the above-mentioned power module 2 may be a lithium battery, or may be any other battery that meets the actual use requirements, which may be determined according to the actual use requirements, which is not limited in the embodiments of the present application. The above-mentioned atomization module 3 (also referred to as atomizer) may include atomization wire (also referred to as load heating wire) and e-liquid; in actual implementation, when current passes through the atomization wire, the atomization wire heats up, Then atomized e-liquid.

As shown in FIG. 6 , the power module 2 and the atomization module 3 are connected to each other, and both are connected to the control circuit 1 . In actual implementation, when the user smokes, that is, when the switch K1 in the control circuit 1 is turned on, the control circuit 1, the power supply module 2 and the atomization module 3 can form a current path to realize the electronic atomization function. .

In a possible implementation, as shown in FIG. 7 , the positive pole of the power supply module 2 is connected to the power supply pin VDD of the control chip 13 , and the negative pole of the power supply module 2 is connected to the atomization lead of the control chip 13 through the atomization module 3 . Pin AT, and the negative pole of the power module 2 is grounded.

In another possible implementation, as shown in FIG. 8 , the positive pole of the power supply module 2 is connected to the power supply pin VDD of the control chip 13 through the atomization module 3 , and the negative pole of the power supply module 2 is connected to the atomization of the control chip 13 Pin AT, and the negative pole of the power module 2 is grounded.

In the embodiment of the present application, the power supply pin VDD of the control chip and the atomization pin AT are welded with leads and connected to the power supply module and the atomization module, so as to meet the use requirements of the electronic atomization device. Compared with the prior art, in the electronic atomization device provided by the embodiment of the present application, it is not necessary to weld a lead between the ground pin GND of the control chip and the battery module.

It should be noted that the connection relationships between the control circuit 1 and the power supply module 2 and the atomization module 3 are all illustrative examples. It is understood that, in actual implementation, the electronic atomization device provided in the embodiment of the present application may also include other Possible implementations, for example, the connection relationship between the control circuit 1 and the power supply module 2 and the atomization module 3 in actual production can be determined according to the specific selection of the switch tube, which can be determined according to the actual use requirements, and the embodiments of this application are not limited. .

The electronic atomization device provided by the embodiment of the present application can realize the electronic atomization function by using two welding leads to connect the control circuit of the electronic atomization device, the battery module and the atomization module. Compared with the use of three welding leads in the related art, the number of welding leads in the electronic atomizing device provided by the present application is reduced from three to two, which greatly reduces the production cost while ensuring the reliability of the electronic atomizing device.

The circuit paths formed in the electronic atomizing device are described below for the scenarios where the user is not smoking and the scenario where the user is smoking.

User not smoking scene

When the signal strength of the airflow strength signal is less than the preset value, that is, when the user does not smoke (or stops smoking), the switch tube K1 is in an off state (equivalent to the switch being turned off), the power module 2, the atomization module 3 and the switch tube K1 do not form a current path.

When the user is not smoking, the power supply module 2 , the atomization module 3 , the power supply capacitor 12 and the one-way conduction tube D1 form a first current path, so that the power supply module 2 charges the power supply capacitor 12 .

In addition, when the user is not smoking, the power module 2, the atomization module 3, the logic controller M1 and the one-way conducting tube D1 form a second current path, so that the power module 2 supplies power to the logic controller M1.

User smoking scene

When the signal strength of the airflow strength signal is greater than or equal to the preset value, that is, when the user is smoking, the switch tube K1 is in a conducting state (equivalent to the switch being closed), and the switch tube K1 can allow a larger current to flow from the second The end b ₂ flows to the third end b ₃ .

When the user is smoking, the power module 2, the atomization module 3 and the switch tube K1 form a third current path, so that the atomization module 3 adjusts the smoke oil mist according to the switching frequency and/or the conduction duty cycle of the switch tube K1 Quantification.

In addition, when the user is smoking, the logic controller M1 and the power supply capacitor 12 form a fourth current path, so that the power supply capacitor 12 supplies power to the logic controller M1.

Specifically, when the user is smoking, the power supply capacitor 12 supplies power to the logic controller M1, and the logic controller M1 receives the smoking signal transmitted by the airflow sensor 11, and drives the switch tube K1 after processing and modulation, so that the switch tube K1 is turned on. The voltage of the battery module 2 is applied to both ends of the atomization module 3, so that the atomization wire in the atomization module 3 is heated to atomize the e-liquid.

In the embodiment of the present application, when different switch tubes are used in the control circuit 1, the connection relationship between the control circuit 1 and the power supply module 2 and the atomization module 3 may include various possible implementations. The following first embodiment (wherein the switch tube K1 is a P-type MOS tube) and the second embodiment (wherein the switch tube K1 is an N-type MOS tube) will be described below in conjunction with the accompanying drawings, in the battery module 2 and the atomization module. 3. In the case of connecting with the above-mentioned control circuit 1, the specific connection relationship and working principle of the electronic atomization device.

The first embodiment: the switch tube K1 is a P-type MOS tube

The switch tube K1 in the control circuit 1 is a P-type MOS tube; wherein, the _first end b1 of the switch tube (K1) is the gate (marked with G), and the _second end b2 is the source (marked with S), And the _third terminal b3 is the drain (marked with D).

FIG. 9 shows a schematic diagram of a circuit connection of an electronic atomization device when a P-type MOS transistor is used in the control circuit provided by the present application. As shown in FIG. 9, the gate G of the switch tube K1 is connected to the logic controller M1. The source S of the switch tube K1 is connected to the positive pole of the power supply module 2 through the power supply pin VDD of the control chip 13 . The drain D of the switch tube K1 is connected to the negative electrode of the power module 2 through the atomization pin AT of the control chip 13 and through the atomization module 3 . In addition, the negative electrode of the power supply module 2 is grounded.

In addition, for the case where the switch tube K1 is a P-type MOS tube, the electronic atomization device also includes the following circuit connection relationship (not shown in the figure): the gate of the switch tube K1 is connected to the logic controller M1; the switch tube K1 The source of the control chip 13 is connected to the positive pole of the power supply module 2 through the power supply pin VDD of the control chip 13 and the atomization module 3; the drain of the switch tube K1 is connected to the power supply module 2 through the atomization pin AT of the control chip 13. negative pole; and, the negative pole of the power module 2 is grounded.

9 , taking the switch tube K1 as an example of a P-type MOS tube, the working process of the electronic atomization device is generally described when the battery module 2 and the atomization module 3 are connected to the above-mentioned control circuit 1 .

(1) When the user is not smoking, the positive electrode of the battery module 2 is connected to the upper plate of the power supply capacitor 12, and the lower plate of the power supply capacitor 12 is connected to the battery module 2 through the one-way conduit D1 and the atomization module 3. on the negative pole, so that the battery module 2 charges the power supply capacitor 12 . The voltage difference between the upper and lower plates of the power supply capacitor 12 is approximately equal to the voltage value of the battery module 2 . It should be noted that in this case, the atomizing wire in the atomizing module 3 is used as a wire, and will not atomize the e-liquid.

At the same time, the battery module 2 supplies power to the logic controller M1 in the control circuit 1, periodically detects the signal condition on the airflow sensor 11, and waits for the instruction of the user's smoking action.

(2) When the user is smoking, the airflow sensor 11 detects the airflow, and converts it into a level signal and transmits it to the logic controller M1 in the control chip 13. The logic controller M1 controls the switch tube K1 to close. At this time, the battery The module 2 and the atomization module 3 form a current loop, and the atomization module 3 starts to generate heat and atomize the e-liquid to form an atomization effect. During this process, the logic controller M1 can control the on-off time of the atomizing wire in the atomization module by means of PWM adjustment according to the smoking intensity of the user, so as to adjust the atomization amount of the e-liquid.

Although the battery module 2 cannot continue to supply power to the logic controller M1 in the control chip 13 at this time, due to the existence of the diode D1, after the switch tube K1 is closed, the potential difference between the upper and lower plates of the power supply capacitor 12 is still equal to the battery At this time, the power supply capacitor 12 replaces the battery module 2 to supply power to the logic controller M1 in the control core 13 to maintain the normal function of the logic controller M1 during smoking.

(3) After the user ends the smoking action, the switch tube K1 is turned off. At this time, the battery module 2 supplies power to the logic controller M1 again, and at the same time recharges the power supply capacitor 12. This charging process is very fast, even if the user takes two smoking actions time. The interval is short, and the charging of the power supply capacitor 12 can also be guaranteed to be completed.

Therefore, the embodiments of the present application can realize the normal power supply and operation of the electronic atomization device after the number of welding leads of the control circuit (ie, the control chip) is reduced from three wires to two wires.

Second embodiment: the switch tube K1 is an N-type MOS tube

The switch tube K1 in the control circuit 1 is an N-type MOS tube; wherein, the _first end b1 of the switch tube (K1) is the gate G, the _second end b2 is the drain D, and the _third end b3 is the source pole S.

FIG. 10 shows a schematic diagram of the circuit connection of the electronic atomization device when an N-type MOS transistor is used in the control circuit provided by the present application. As shown in FIG. 10 , the gate G of the switch tube K1 is connected to the logic controller M1 . The drain D of the switch tube K1 is connected to the positive pole of the power supply module 2 through the power supply pin VDD of the control chip 13 and through the atomization module 3 . The source S of the switch tube K1 is connected to the negative electrode of the power module 2 through the atomization pin AT of the control chip 13 . In addition, the negative electrode of the power supply module 2 is grounded.

In addition, for the case where the switch tube K1 is an N-type MOS tube, the electronic atomization device further includes the following circuit connection relationship: the gate G of the switch tube K1 is connected to the logic controller M1; the drain D of the switch tube K1 is connected to the source. S passes through the power supply pin VDD of the control chip 13 and is directly connected to the positive pole of the power supply module 2; negative pole; and, the negative pole of the power module 2 is grounded.

10 , taking the switch tube K1 as an N-type MOS tube as an example, the working process of the electronic atomization device is generally described when the battery module 2 and the atomization module 3 are connected to the above-mentioned control circuit 1 .

(1) When the user is not smoking, the positive electrode of the battery module 2 is connected to the upper electrode plate of the power supply capacitor 12 through the atomization module 3, and the lower electrode plate of the power supply capacitor 12 is connected through the one-way conduction tube D1 in the control chip 13. to the negative pole of the battery module 2 , so that the battery module 2 charges the power supply capacitor 12 . The voltage difference between the upper and lower plates of the power supply capacitor 12 is approximately equal to the voltage value of the battery module 2 . It should be noted that in this case, the atomizing wire in the atomizing module 3 is used as a wire, and will not atomize the e-liquid.

At the same time, the battery module 2 supplies power to the logic controller M1 in the control circuit 1, periodically detects the signal condition on the airflow sensor 11, and waits for the instruction of the user's smoking action.

(2) When the user is smoking, the airflow sensor 11 detects the airflow, and converts it into a level signal and transmits it to the logic controller M1 in the control chip 13. The logic controller M1 controls the switch tube K1 to close. At this time, the battery The module 2 and the atomization module 3 form a current loop, and the atomization module 3 starts to generate heat and atomize the e-liquid to form an atomization effect. During this process, the logic controller M1 can control the on-off time of the atomizing wire by means of PWM adjustment according to the smoking intensity of the user, so as to adjust the atomization amount of the e-liquid.

Although the battery module 2 cannot continue to supply power to the logic controller M1 in the control chip 13 at this time, due to the existence of the diode D1, after the switch tube K1 is closed, the potential difference between the upper and lower plates of the power supply capacitor 12 is still equal to the battery At this time, the power supply capacitor 12 replaces the battery module 2 to supply power to the logic controller M1 in the control core 13 to maintain the normal function of the logic controller M1 during smoking.

(3) After the user ends the smoking action, the switch tube K1 is turned off. At this time, the battery module 2 supplies power to the logic controller M1 again, and at the same time recharges the power supply capacitor 12. This charging process is very fast, even if the user takes two smoking actions time. The interval is short, and the charging of the power supply capacitor 12 can also be guaranteed to be completed.

Therefore, the embodiments of the present application can realize the normal power supply and operation of the electronic atomization device after the number of welding leads of the control circuit (ie, the control chip) is reduced from three wires to two wires.

In a possible implementation, the electronic atomization device provided in the embodiment of the present application may further include a switch module, and the switch module is configured to control the electronic atomization device to be in an enabled state and a disabled state according to a user's operation instruction on the switch module switch between.

Exemplarily, with reference to FIG. 7 , as shown in FIG. 11 , the electronic atomization device further includes a switch module 4 , which is disposed between the power supply pin VDD of the control chip 13 and the positive pole of the power supply 2 .

Of course, the switch module may also be disposed in any other position in the electronic atomization device that meets the actual use requirements, which may be specifically determined according to the actual use requirements, which are not limited in the embodiments of the present application.

Optionally, in the embodiment of the present application, the above-mentioned switch module may be a key switch, a touch switch, or a lip sensor switch, or any other switch that meets the actual use requirements, which may be determined according to the actual use requirements. The embodiments of the present application are not limited.

Exemplarily, taking the switch module as a touch switch as an example, if the user wants to smoke, the user can first touch the touch switch on the electronic atomization device to trigger the electronic atomization function to be turned on, and then the user can use the electronic atomization device. The device achieves the purpose of smoking. Further, if the user does not smoke, the user can touch the touch switch on the electronic atomization device again to trigger the electronic atomization function to be turned off. Alternatively, the electronic atomization device may be automatically turned off when it is detected that the user does not smoke for a predetermined period of time. In this way, the use safety of the electronic atomization device can be guaranteed.

In a possible implementation, the electronic atomization device provided in the embodiment of the present application further includes a casing and an electric control board. Wherein, the control circuit 1 is arranged on the electric control board, and the electric control board is accommodated in the casing.

In the embodiment of the present application, on the premise that the normal operation and control of the electronic atomization device can be ensured, the control chip of the electronic atomization device does not need to be directly connected to the two poles of the battery at the same time, that is, the GND pin of the control chip does not need to be welded. The number of welding leads that need to be drawn is reduced from three wires to two wires, which can not only optimize the layout design of the PCB, but also reduce the production cost caused by the welding wires, and at the same time, it can effectively avoid the risk of failure caused by manual operation.

It should be noted that each of the accompanying drawings (eg, FIG. 7 , FIG. 8 , etc.) in the above-mentioned embodiments of the present application are all illustrated in conjunction with the above-mentioned FIG. 2 . During specific implementation, each accompanying drawing may also be combined with any other accompanying drawings that can be combined. Figure implementation, for example, FIG. 7 and FIG. 8 can also be implemented in conjunction with FIG. 5 .

It should also be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned functions can be allocated as required. It is completed by different functional units and modules, that is, the internal structure of the device is divided into different functional units or modules, so as to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated in one processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit, and the above-mentioned integrated units may adopt hardware. It can also be realized in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application.

Method for controlling electronic atomization device

Embodiments of the present application further provide a method for controlling an electronic atomizing device, and the method for controlling an electronic atomizing device can be applied to the electronic atomizing device described in the above embodiments. The electronic atomization device includes a logic controller, a switch tube, an airflow sensor, a battery, a capacitor and an atomizer.

It should be noted that the executive body of the method for controlling an electronic atomization device provided by the embodiments of the present application may be the above-mentioned electronic atomization device, or may be a device in the electronic atomization device that can implement the method for controlling the electronic atomization device. The functional modules and/or functional entities (for example, logic controllers) may be specifically determined according to actual usage requirements, which are not limited in the embodiments of the present application. The following takes the logic controller as an example to illustrate the method for controlling the electronic atomization device provided by the embodiment of the present application.

FIG. 12 shows a schematic flowchart of a method for controlling an electronic atomization device provided by an embodiment of the present application. As shown in FIG. 12 , the method for controlling the electronic atomization device includes the following S101-S103.

S101, the logic controller controls the on-off state of the switch tube in the electronic atomization device according to the airflow intensity signal.

Wherein, the above-mentioned on-off state includes off-state and on-state. The above-mentioned airflow intensity signal is generated by the logic controller according to the airflow intensity sensed by the airflow sensor.

S102, when the switch tube is in an off state, the battery charges the capacitor and supplies power to the logic controller.

S103 , when the switch tube is in an on state, the capacitor discharges to the logic controller, and the atomizer atomizes the e-liquid.

Wherein, in this embodiment of the present application, the foregoing S102 and S103 may be selectively executed.

Optionally, in the embodiment of the present application, the above-mentioned switch transistor may be a P-type MOS transistor, or may be an N-type MOS transistor. Of course, the switch tube can also be any other transistor that meets the actual use requirements, which can be specifically determined according to the actual use requirements, which is not limited in the embodiment of the present application.

In the embodiment of the present application, when the switch tube is in the off state, that is, when the user does not smoke (or stops smoking), the battery in the electronic atomization device can not only charge the capacitor, but also supply power to the logic controller , so that the logic controller can periodically detect the instruction of the user's smoking action. In addition, when the switch tube is in an on state, that is, when the user is smoking, the capacitor will discharge to the logic controller, and the atomizer in the electronic atomizer device atomizes the e-liquid.

The method for controlling an electronic atomization device provided by the embodiment of the present application is applied to the above-mentioned improved electronic atomization device (that is, using two welding leads), so that the battery can be used to charge the power supply capacitor when the user is not smoking, and when the user is not smoking When the user is smoking, the power supply capacitor supplies power to the electronic atomization device, and realizes the function of atomization of smoke oil. Compared with the solution in the related art in which three welding leads are used and a battery is used to supply power to the logic controller, the embodiment of the present application can reduce production costs and improve product reliability.

Optionally, in the embodiment of the present application, the above-mentioned controlling the on-off state of the switch tube in the electronic atomization device according to the airflow intensity signal (the above-mentioned S101 ) may specifically include the following S101A and S101B.

S101A, when the signal strength of the airflow strength signal is less than a preset value, the logic controller controls the switch tube to be in an off state.

If the signal strength of the airflow strength signal is less than the preset value, it means that the user is not smoking, and the switch tube is in an off state at this time, and further, the battery in the electronic atomization device charges the capacitor.

S101B, when the signal strength of the airflow strength signal is greater than or equal to a preset value, the logic controller controls the switch tube to be in an on state.

If the signal strength of the airflow strength signal is greater than or equal to the preset value, it means that the user is smoking. At this time, the control switch tube is in an on state. Further, the capacitor in the electronic atomization device supplies power to the logic controller, and the electronic atomization device is powered on. After the atomizer in the device is heated, the smoke oil is atomized to realize the electronic atomization function.

Optionally, in the embodiment of the present application, the method for controlling the electronic atomization device provided by the embodiment of the present application may further include the following S104.

S104 , the logic controller controls the switching frequency and/or the on-duty ratio of the switch tube according to the airflow intensity signal, so as to adjust the power of the atomizer.

The switching frequency of the switch tube may refer to the number of times the switch tube is turned on within a certain period of time. The on-duty ratio of the switch tube can refer to the ratio of the on-time to the total time in one pulse cycle.

In the embodiment of the present application, the on-off time of the atomizing wire in the atomizer can be controlled by means of PWM adjustment according to the smoking intensity of the user, so as to adjust the power of the atomizer, thereby controlling the e-liquid atomization of the electronic atomization device quantity.

Optionally, in the embodiment of the present application, the method for controlling the electronic atomization device provided by the embodiment of the present application may further include the following S105.

S105, the logic controller adopts a PWM method to adjust the brightness and/or flashing method of the indicator light in the electronic atomization device according to the voltage change of the airflow intensity signal.

For a specific description of how to adjust the brightness and/or flashing mode of the indicator light in the electronic atomization device, reference may be made to the detailed description of adjusting the brightness and/or flashing mode in the above control circuit embodiment, which will not be repeated here.

Optionally, in the embodiment of the present application, before the electronic atomizing device senses the airflow intensity ( S101 ), the method for controlling the electronic atomizing device provided in the embodiment of the present application may further include the following S106 .

S106 , in response to the user's turn-on instruction for the switch control in the electronic atomization device, the switch valve is closed, so that the electronic atomization device is in an enabled state.

In the embodiment of the present application, after the user triggers the activation of the electronic atomization device, the electronic atomization device can sense the airflow, so as to ensure the safety of the electronic atomization device in use.

The on/off valve may be a key switch, a touch switch, or any other switch that meets actual use requirements, which may be specifically determined according to actual use requirements, which are not limited in the embodiments of the present application.

For a specific description of how to activate the electronic atomization device, reference may be made to the detailed description of using a switch module to trigger the activation of the electronic atomization device in the above-mentioned embodiment of the electronic atomization device, which will not be repeated here.

It should be understood that the size of the sequence numbers of the steps in the above embodiments does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should be noted that the execution process and other contents of the above method embodiments are based on the same concept as the device embodiments of the present application, and the specific functions and technical effects brought by them can be found in the device embodiments section, which will not be repeated here.

As shown in FIG. 13 , an embodiment of the present application further provides an electronic device, the electronic device includes: at least one processor 60 , a memory 61 , and a memory 61 that is stored in the memory 61 and can run on the at least one processor 60 . The computer program 62, when the processor 60 executes the computer program 62, implements the steps in any of the foregoing method embodiments.

Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps in the foregoing method embodiments can be implemented.

The embodiments of the present application provide a computer program product, when the computer program product runs on an electronic device, the steps in the foregoing method embodiments can be implemented when the electronic device executes.

If the above-mentioned integrated units are implemented in the form of software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can be implemented by the present application, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When executed by the processor, the steps of the foregoing method embodiments may be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form, and the like. The computer-readable medium may include at least: any entity or device capable of carrying the computer program code to the photographing device/terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory ( RAM, Random Access Memory), electrical carrier signals, telecommunication signals, and software distribution media. For example, U disk, mobile hard disk, disk or CD, etc. In some jurisdictions, under legislation and patent practice, computer readable media may not be electrical carrier signals and telecommunications signals.

In the foregoing embodiments, the description of each embodiment has its own emphasis. For parts that are not described or described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In the embodiments provided in this application, it should be understood that the disclosed apparatus/electronic device and method may be implemented in other manners. For example, the apparatus/electronic device embodiments described above are only illustrative, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components May be combined or may be integrated into another system, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described above as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

It is to be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described feature, integer, step, operation, element and/or component, but does not exclude one or more other The presence or addition of features, integers, steps, operations, elements, components and/or sets thereof.

It will also be understood that, as used in this specification and the appended claims, the term "and/or" refers to and including any and all possible combinations of one or more of the associated listed items.

As used in the specification of this application and the appended claims, the term "if" may be contextually interpreted as "when" or "once" or "in response to determining" or "in response to detecting ". Similarly, the phrases "if it is determined" or "if the [described condition or event] is detected" may be interpreted, depending on the context, to mean "once it is determined" or "in response to the determination" or "once the [described condition or event] is detected. ]" or "in response to detection of the [described condition or event]".

In addition, in the description of the specification of the present application and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the description, and should not be construed as indicating or implying relative importance.

References in this specification to "one embodiment" or "some embodiments" and the like mean that a particular feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically emphasized otherwise. The terms "including", "including", "having" and their variants mean "including but not limited to" unless specifically emphasized otherwise.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that: it can still be used for the above-mentioned implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the application, and should be included in the within the scope of protection of this application.

Claims (16)

1. A control circuit (1), characterized in that, comprising an airflow sensor (11), a power supply capacitor (12) and a control chip (13), the control chip (13) comprising a logic controller (M1), a one-way guide Pass tube (D1), switch tube (K1), power supply pin (VDD), atomization pin (AT) and ground pin (GND); Wherein, the logic controller (M1) is respectively connected to the first end (a 1 ) of the airflow sensor (11) and the first end (b ₁ ) of the switch tube (K1) _; the logic controller (M1) is connected to the first end (c ₁ ) of the power supply capacitor (12) and the second end (b ₂ ) of the switch tube (K1) through the power supply pin (VDD); the logic The controller (M1) is connected to the positive electrode of the one-way conducting tube (D1), the second end (a ₂ ) of the airflow sensor (11) and the power supply capacitor ( 12) the second end (c ₂ ); the negative electrode of the one-way conducting tube (D1) is connected to the third end (b ₃ ) of the switching tube (K1) through the atomizing pin (AT) ; Wherein, the power supply pin (VDD) and the atomization pin (AT) of the control chip (13) are used to connect with the power supply module and the atomization module of the peripheral device, so as to realize the electronic atomization function. 2. The control circuit according to claim 1, wherein, The power supply capacitor (12) is used to supply power to the control chip (13); the airflow sensor (11) is used to sense the airflow intensity through the second end (a ₂ ), and the air flow sensor ( 11 ) is used to sense the airflow intensity through the first end (a ₁ ). The logic controller (M1) outputs an airflow intensity signal; the logic controller (M1) is configured to receive the airflow intensity signal output by the first end (a ₁ ) of the airflow sensor (11), according to the airflow The strength signal controls the on-off state of the switch tube (K1), and controls the switching frequency and/or conduction duty cycle of the switch tube (K1) according to the airflow strength signal, so as to adjust the atomization module. power; Wherein, when the signal strength of the airflow strength signal is less than a preset value, the logic controller (M1) controls the switch tube (K1) to be in an off state; when the signal strength of the airflow strength signal is greater than or When the value is equal to the preset value, the logic controller (M1) controls the switch tube (K1) to be in a conducting state. 3. The control circuit according to claim 2, wherein the switch tube (K1) is a P-type metal oxide semiconductor MOS tube; the first end (b ₁ ) of the switch tube (K1) is a gate, the second terminal (b ₂ ) is a source, and the third terminal (b ₃ ) is a drain; Alternatively, the switch tube (K1) is an N-type MOS tube; the first end (b ₁ ) of the switch tube (K1) is a gate, the second end (b ₂ ) is a drain, and The third terminal (b ₃ ) is a source electrode. 4. The control circuit according to any one of claims 1 to 3, wherein the control circuit further comprises an indicator light (L1), and the indicator light (L1) is used to indicate a use state and/or a power state; Wherein, the positive pole of the indicator light (L1) is connected to the logic controller (M1), and the negative pole of the indicator light (L1) is connected to the second end (c ₂ ) of the power supply capacitor (12). 5. The control circuit according to claim 4, characterized in that, the indicator light (L1) is used for receiving the driving signal output by the logic controller (M1), and according to the voltage change of the driving signal, using The brightness and/or flashing mode of the indicator light (L1) is adjusted by means of pulse width modulation (PWM). 6. An electronic atomization device, characterized in that, comprising a power module (2), an atomization module (3) and the control circuit (1) according to any one of claims 1 to 5; Wherein, the positive pole of the power supply module (2) is connected to the power supply pin (VDD) of the control chip (13), and the negative pole of the power supply module (2) is connected to the the atomizing pin (AT) of the control chip (13), and the negative electrode of the power supply module (2) is grounded; Alternatively, the positive pole of the power supply module (2) is connected to the power supply pin (VDD) of the control chip (13) through the atomization module (3), and the negative pole of the power supply module (2) is connected to the The atomizing pin (AT) of the control chip (13) is controlled, and the negative electrode of the power supply module (2) is grounded. 7. The electronic atomization device according to claim 6, wherein the switch tube (K1) in the control circuit (1) is a P-type MOS tube, and the first switch tube (K1) The terminal (b ₁ ) is the gate, the second terminal (b ₂ ) is the source, and the third terminal (b ₃ ) is the drain; or, the switch tube ( K1 ) is an N-type MOS tube , the first end (b ₁ ) of the switch tube (K1) is the gate, the second end (b ₂ ) is the drain, and the third end (b ₃ ) is the source; Wherein, the first end (b ₁ ) of the switch tube (K1) is connected to the logic controller (M1); the second end (b ₂ ) of the switch tube (K1) passes through the control chip (13) The power supply pin (VDD) is connected to the positive pole of the power supply module (2); the third end (b ₃ ) of the switch tube (K1) passes through the atomization pin (AT) of the control chip (13) And through the atomization module (3), it is connected to the negative pole of the power supply module (2); Alternatively, the first end (b ₁ ) of the switch tube (K1) is connected to the logic controller (M1); the second end (b ₂ ) of the switch tube (K1) passes through the control chip (13) ) of the power supply pin (VDD) and through the atomization module (3), connected to the positive pole of the power supply module (2); the third end (b ₃ ) of the switch tube (K1) passes through the control The atomization pin (AT) of the chip (13) is connected to the negative electrode of the power module (2). 8. The electronic atomization device according to claim 6, characterized in that, when the signal strength of the airflow strength signal is less than a preset value, the power module (2), the atomization module (3), The power supply capacitor (12) and the one-way conducting tube (D1) form a first current path, so that the power supply module (2) charges the power supply capacitor (12); and the power supply module (2), the atomizer The module (3), the logic controller (M1) and the one-way conducting tube (D1) form a second current path, so that the power supply module (2) supplies power to the logic controller (M1); When the signal strength of the airflow strength signal is greater than or equal to the preset value, the power module (2), the atomization module (3) and the switch tube (K1) form a third current path, so that a third current path is formed. The atomization module (3) adjusts the amount of e-liquid atomization according to the switching frequency and/or the on-duty ratio of the switch tube (K1); and the logic controller (M1) and the power supply capacitor ( 12) A fourth current path is formed, so that the power supply capacitor (12) supplies power to the logic controller (M1). 9. The electronic atomization device according to claim 6, characterized in that, the electronic atomization device further comprises a switch module (4), and the switch module (4) is used to adjust the switch module (4) according to the user's control of the switch module (4). ) to control the electronic atomization device to switch between an enabled state and a disabled state. 10. The electronic atomization device according to any one of claims 6 to 9, wherein the electronic atomization device further comprises a housing and an electric control board; Wherein, the control circuit (1) is arranged on the electric control board, and the electric control board is accommodated in the casing. 11. A method for controlling an electronic atomization device, the electronic atomization device comprising a logic controller, a switch tube, an airflow sensor, a battery, a capacitor and an atomizer, wherein the method comprises: The logic controller controls the on-off state of the switch tube according to the airflow intensity signal, the on-off state includes an off state and an on state, and the airflow intensity signal is generated according to the airflow intensity sensed by the airflow sensor ; When the switch tube is in the off state, the battery charges the capacitor and supplies power to the logic controller; When the switch tube is in the conducting state, the capacitor discharges to the logic controller, and the atomizer performs the atomization of the e-liquid. 12. The method of claim 11, wherein the logic controller controls the on-off state of the switch tube according to the airflow intensity signal, comprising: When the signal strength of the airflow strength signal is less than a preset value, the logic controller controls the switch tube to be in an off state; When the signal strength of the airflow strength signal is greater than or equal to the preset value, the logic controller controls the switch tube to be in a conducting state. 13. The method of claim 12, further comprising: The logic controller controls the switching frequency and/or the on-duty ratio of the switch tube according to the airflow intensity signal, so as to adjust the power of the atomizer. 14. The method of claim 11, further comprising: The logic controller adopts a pulse width modulation (PWM) method to adjust the brightness and/or flashing mode of the indicator light in the electronic atomization device according to the voltage change of the airflow intensity signal. 15. The method according to any one of claims 11 to 14, wherein before the logic controller controls the on-off state of the switch tube according to the airflow intensity signal, the method further comprises: In response to a user's instruction to open the switch valve in the electronic atomization device, the switch valve is closed, so that the electronic atomization device is in an enabled state. 16. The method according to any one of claims 11 to 14, wherein the switch transistor is a P-type metal oxide semiconductor MOS transistor or an N-type MOS transistor.

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