WO2021197456A1

WO2021197456A1 - Ultrasonic electronic cigarette control circuit and control method, and ultrasonic electronic cigarette

Info

Publication number: WO2021197456A1
Application number: PCT/CN2021/085178
Authority: WO
Inventors: 刘建福; 钟科军; 郭小义; 尹新强; 易建华; 邹佐雄; 周永权
Original assignee: 湖南中烟工业有限责任公司
Priority date: 2020-04-03
Filing date: 2021-04-02
Publication date: 2021-10-07

Abstract

An ultrasonic electronic cigarette control circuit and control method, and an ultrasonic electronic cigarette. The control circuit comprises a power supply (1), a start unit (2), and a controller (3). The power supply (1) is connected to an ultrasonic atomization sheet (4) by means of the controller (3), and the start unit (2) is connected to the controller (3). The control circuit further comprises a timing module (5) electrically connected to the controller (3). The start unit (2) comprises a manual switch (201) and a pneumatic switch (202). The timing module (5) is configured to start timing when the manual switch (201) is turned on. The controller (3) is configured to: after the manual switch (201) is turned on, control the timing module (5) to start timing and control the ultrasonic atomization sheet (4) to work at first power; when the pneumatic switch (202) is turned on within time t1, control the ultrasonic atomization sheet (4) to work at second power; and otherwise, control the ultrasonic atomization sheet (4) to stop working. The pneumatic switch (202) is turned on when gas flows through a gas path of the electronic cigarette. The control circuit is provided with twin start switches, and can thus avoid accidental triggering and save electric energy, so that the e-liquid atomization effect is the best, it is less likely to inhale e-liquid particles, and the amount of smoke is large. The control circuit is compatible with a variety of smoking modes, and improves the user experience.

Description

Ultrasonic electronic cigarette control circuit and control method, and ultrasonic electronic cigarette

Technical field

The invention belongs to the technical field of electronic cigarettes, and particularly relates to an ultrasonic electronic cigarette control circuit and control method, and an ultrasonic electronic cigarette.

Background technique

The existing ultrasonic electronic cigarette control circuit includes a power supply, a starting unit, and a controller. The power supply is electrically connected to the ultrasonic atomizing sheet through the controller, and the starting unit is electrically connected to the input port of the controller. When the controller receives the start working signal of the starting unit, the controller controls the operation of the ultrasonic atomizing sheet. In a specific structure, the controller includes a microprocessor, a booster module, and a high-frequency oscillation module. The power supply, the microprocessor, the booster module, the high-frequency oscillation module, and the ultrasonic atomizer are electrically connected in sequence, and the startup unit is electrically connected to the The input terminal of the microprocessor is electrically connected. When the microprocessor receives the start working signal of the starting unit, the microprocessor outputs the PWM wave to the boost module. After the voltage signal output by the microprocessor is boosted by the boost module, it controls the high-frequency oscillation module to generate an oscillation signal and drive The ultrasonic atomization sheet oscillates.

In the prior art, the activation unit is generally one of a manual switch or a pneumatic switch. When the manual switch is turned on or the user initiates a suction action, the ultrasonic atomizing sheet starts to work.

The existing ultrasonic electronic cigarette control circuit has the following disadvantages:

First, when the activation unit is a manual switch, if the manual switch is turned on, the controller controls the ultrasonic atomizer to work all the time. At this time, if you do not smoke (such as accidentally triggering an electronic cigarette, etc.), it will not only cause unnecessary The e-liquid will continue to flow to the ultrasonic atomizing film due to the continuous high frequency oscillation of the ultrasonic atomizing film, and finally the ultrasonic atomizing film will be soaked in e-liquid, so that the e-liquid is easy to inhale the next time you smoke. Particles, and the amount of smoke is small.

Second, when the activation unit is a pneumatic switch (microphone), only when the user sends out a suction action, that is, when the pneumatic switch detects airflow, the controller will control the ultrasonic atomizer to work, so the ultrasonic atomizer is effective for the smoke oil. Atomization will have a certain lag effect, the amount of smoke at the beginning of the suction is small, and the user experience is poor.

Summary of the invention

The purpose of the present invention is to provide an ultrasonic electronic cigarette control circuit and a control method, an ultrasonic electronic cigarette, and an ultrasonic electronic cigarette with a dual-start switch, which can avoid false triggering, save power, and make smoke oil mist. The chemical effect is better, the smoke oil particles are not easy to be inhaled, and the amount of smoke is large.

In order to solve the above technical problems, the technical solutions adopted by the present invention are:

An ultrasonic electronic cigarette control circuit, including a power supply, a starting unit, and a controller. The power supply is electrically connected to the ultrasonic atomizing sheet through the controller, and the starting unit is electrically connected to the input end of the controller; the feature is that it also includes electrical connection to the controller The timing module; the starting unit includes a manual switch and a pneumatic switch; where:

Timing module: used to start timing when the manual switch is turned on and send the timing duration t ₁ to the controller;

Controller: used to control the timing module to start timing after the manual switch is turned on, and control the ultrasonic atomizer to work at the first power; and determine whether the pneumatic switch is turned on after the manual switch is turned on, when the pneumatic switch is at time t _{If it} is connected within 1, control the ultrasonic atomizer to work at the second power; otherwise, control the ultrasonic atomizer to stop working; among them, t ₁ ≤ t ₀ ; t ₀ is the preset value, and the preset value is set to ultrasonic fog The maximum working time of the chip at the first power; the first power ≠ the second power.

In the present invention, the pneumatic switch is turned on when there is an air flow passing through the electronic cigarette gas path.

With the above structure, the starting unit in the present invention has two control switches (a manual switch and a pneumatic switch, the manual switch is a key switch, etc., and the pneumatic switch is a microphone, etc.). When the user manually turns on the manual switch, the controller receives the manual switch activation signal and issues an instruction to make the ultrasonic atomizer work at the first power immediately, that is, when the user does not smoke, the ultrasonic atomizer atomizes the e-liquid in advance Produce smoke, reduce the oil bubble phenomenon of the ultrasonic atomizer at the beginning of suction, and prevent users from inhaling smoke oil particles. _{Thereafter, if the user smokes within the preset time t 0} after the manual switch is turned on (the controller detects that the pneumatic switch is turned on at this time), the controller controls the ultrasonic atomizer to work at the second power to atomize the e-liquid; _{If the user does not make a smoking action within the preset time t 0} after the manual switch is turned on (the controller detects that the pneumatic switch is turned off at this time), the controller controls the ultrasonic atomizer to stop working immediately, increasing the beginning of smoking The amount of smoke is high, and it avoids waste of electric energy due to the useless work of the ultrasonic atomizer (that is, air vibration).

In a preferred solution, the first power is less than the second power, that is, the ultrasonic atomizing sheet is activated with a lower power. Since it is uncertain whether there is a user smoking, low-power startup can reduce power consumption. After the pneumatic switch is turned on, it can quickly enter a stable working state. The controller then controls the ultrasonic atomizer to increase the working power and work according to the normal power to meet the user's demand for smoke.

In another preferred solution, the first power is greater than the second power, that is, the ultrasonic atomizing sheet is activated with a higher power. The high-power start can make the ultrasonic atomizer enter the working state at the fastest speed, because the smoke oil is soaked on the surface of the ultrasonic atomizer for a long time, the composition in the smoke oil will be deposited on the surface of the ultrasonic atomizer, so it needs to be connected to the ultrasonic atomizer. When the manual switch is turned on, the high power starts to break through the deposited composition of this layer to prepare for the subsequent rapid atomization of smoke. In the stable working state after the pneumatic switch is turned on, the controller then controls the ultrasonic atomizer to reduce the working power and work according to the normal power to meet the user's pursuit of smoke.

Further, the controller is also used for controlling the ultrasonic atomizing sheet to work at the second power when it is detected that the pneumatic switch is turned on after controlling the ultrasonic atomizing sheet to stop working.

With the above structure, when the user _{smokes after exceeding the preset value t 0} , the pneumatic switch is turned on, and the ultrasonic atomizing sheet starts to work again, and the e-liquid is atomized to produce smoke, which can improve the atomization efficiency of the e-liquid, and also It can improve the safety of the user and eliminate the potential danger caused by the continuous operation of the ultrasonic atomizing film caused by the manual switch being triggered by mistake.

Further, the controller is also used to directly control the start and stop of the ultrasonic atomizing sheet according to the on-off state of the pneumatic switch when the manual switch is not turned on. That is, when the pneumatic switch is turned on, the controller controls the ultrasonic atomization sheet to work, otherwise, the ultrasonic atomization sheet does not work.

When the user does not operate the manual switch and directly smokes, the controller receives the signal from the pneumatic switch and controls the ultrasonic atomizer to work, and the atomizer atomizes the e-liquid to produce smoke. At this time, in order to eliminate the hysteresis effect of the ultrasonic atomization sheet on the atomization of e-liquid, increase the amount of smoke at the beginning of inhalation, and further improve the user experience, in another preferred solution of the present invention, when the pneumatic switch is turned on , The ultrasonic atomizing sheet works at the maximum power, and the user does not need to operate the manual switch at this time, and the operation is more convenient. Therefore, the ultrasonic electronic cigarette of the present invention can be used in a variety of ways, which can improve the convenience of use and avoid false triggering. .

As a preferred manner, the first power is less than the second power; the first power is 8W-15W, and the second power is 18W-25W.

As another preferred manner, the first power is greater than the second power; the first power is 18W-35W, and the second power is 8W-15W.

As a preferred mode, the controller includes a microprocessor, a booster module, and a high-frequency oscillation module. The power supply is electrically connected through the microprocessor, the booster module, the high-frequency oscillation module and the ultrasonic atomizer in sequence, and the start unit is connected to the The input terminal of the microprocessor is electrically connected, and the timing module is electrically connected with the microprocessor.

Based on the same inventive concept, the present invention also provides an ultrasonic electronic cigarette control method, including the following steps:

Judge whether the manual switch is turned on, if yes, the ultrasonic atomizer will work at the first power; if the pneumatic switch _{is turned on within time t 1} , the ultrasonic atomizer will work at the second power; otherwise, the ultrasonic atomizer will be controlled to stop In the work, t ₁ ≤ t ₀ , t ₀ is a preset value, and the preset value is set as the maximum working time of the ultrasonic atomizer working at the first power; the first power ≠ the second power.

Further, after the ultrasonic atomization sheet stops working, if the pneumatic switch is turned on, the ultrasonic atomization sheet operates at the second power.

Further, when the manual switch is not turned on, the start and stop of the ultrasonic atomizing sheet are directly controlled according to the on-off state of the pneumatic switch. That is, when the pneumatic switch is turned on, the ultrasonic atomizer is controlled to work, otherwise, the ultrasonic atomizer does not work.

Based on the same inventive concept, the present invention also provides an ultrasonic electronic cigarette, which is characterized by including the above-mentioned ultrasonic electronic cigarette control circuit.

Compared with the prior art, the present invention is equipped with a dual-start switch, which can avoid false triggering, save electric energy, and make the e-liquid atomization effect best, not easy to ingest e-liquid particles, and large amount of smoke; it is compatible with a variety of smokers. Ways to enhance the user experience.

Description of the drawings

Fig. 1 is a schematic diagram of the structure of the ultrasonic electronic cigarette control circuit of the present invention.

Figure 2 is a flow chart of the ultrasonic electronic cigarette control method of the present invention.

Among them, 1 is a power supply, 2 is a start unit, 201 is a manual switch, 202 is a pneumatic switch, 3 is a controller, 301 is a microprocessor, 302 is a boost module, 303 is a high-frequency oscillation module, and 4 is an ultrasonic atomizer Pieces, 5 is the timing module.

Detailed ways

As shown in Fig. 1, the ultrasonic electronic cigarette control circuit in the ultrasonic electronic cigarette of the present invention includes a power source 1, a starting unit 2 and a controller 3. The power source 1 is electrically connected to the ultrasonic atomizing sheet 4 through the controller 3, and the starting unit 2 is The input end of the device 3 is electrically connected; it also includes a timing module 5 electrically connected to the controller 3; the starting unit 2 includes a manual switch 201 and a pneumatic switch 202; wherein:

Power 1: Used to supply power to the controller 3.

Timing module 5: used to start timing when the manual switch 201 is turned on and send the timing duration t ₁ to the controller 3;

Controller 3: used to control the timing module 5 to start timing after the manual switch 201 is turned on and control the ultrasonic atomizing sheet 4 to work at the first power; used to determine whether the pneumatic switch 202 is turned on after the manual switch 201 is turned on, when When the pneumatic switch 202 is turned on within the _{time t 1} _{(t 1} ≤ t ₀ ), it controls the ultrasonic atomization sheet 4 to work at the second power; otherwise, it controls the ultrasonic atomization sheet 4 to stop working; where t ₀ is the preset value and Is the maximum working time of the ultrasonic atomizer 4 at the first power; the first power is less than or greater than the second power;

Pneumatic switch 202: used to switch on when there is air flow in the electronic cigarette gas path.

Specifically, the controller 3 includes a microprocessor 301, a booster module 302, and a high-frequency oscillation module 303. The power source 1 passes through the microprocessor 301, the booster module 302, the high-frequency oscillation module 303, and the ultrasonic atomizer 4 in sequence. Electrically connected, the starting unit 2 is electrically connected to the input end of the microprocessor 301, and the timing module 5 is electrically connected to the microprocessor 301. When the microprocessor 301 receives the start working signal of the starting unit 2, the microprocessor 301 outputs the PWM wave to the boost module 302, and the voltage signal output by the microprocessor 301 is boosted by the boost module 302 to control the high frequency oscillation The module 303 generates an oscillating signal to drive the ultrasonic atomization sheet 4 to oscillate.

The starting unit 2 in the present invention has two control switches (a manual switch 201 and a pneumatic switch 202, the manual switch 201 is a key switch, etc., and the pneumatic switch 202 is a microphone, etc.). When the user manually turns on the manual switch 201, the controller 3 receives the activation signal of the manual switch 201, and issues an instruction to make the ultrasonic atomizing sheet 4 work at the first power immediately, that is, when the user has not smoked, the ultrasonic atomizing sheet 4 Atomize the e-liquid in advance to generate smoke, reduce the phenomenon of oil foaming of the ultrasonic atomizing sheet 4 at the beginning of inhalation, avoid inhaling e-liquid particles, and at the same time, the amount of smoke is large and full. _{After that, if the user smokes within the preset time t 0} after the manual switch 201 is turned on (at this time, the controller 3 detects that the pneumatic switch 202 is turned on), the controller 3 controls the ultrasonic atomizing sheet 4 to work at the second power, Atomized e-liquid; if the user _{does not make a smoking action within the preset time t 0} after the manual switch 201 is turned on (at this time, the controller 3 detects that the pneumatic switch 202 is turned off), the controller 3 controls the ultrasonic atomizing sheet 4 Stop the work immediately to avoid wasting electric energy due to the useless work of the ultrasonic atomizing sheet 4. For example, t ₀ = (0.5s-3s), if the manual switch 201 is pressed for more than 3s, and the controller 3 receives or cannot detect the start signal of the pneumatic switch 202, the ultrasonic atomizer 4 immediately stops working; if Within 3s after the manual switch 201 is pressed, the controller 3 receives or detects the signal activated by the pneumatic switch 202, and the ultrasonic atomizer sheet 4 immediately enters the working state driven by the second power.

In a preferred solution, the first power is less than the second power (for example, the first power is 8W-15W, and the second power is 18W-25W), that is, the ultrasonic atomizing sheet 4 is activated with a lower power. Since it is uncertain whether there is a user smoking, low-power startup can reduce power consumption. After the pneumatic switch 202 is turned on, the stable working state can be quickly entered, and the controller 3 then controls the ultrasonic atomizing sheet 4 to increase the working power and work according to the normal power, so as to meet the user's pursuit of smoke.

In another preferred solution, the first power is greater than the second power (for example, the first power is 18W-35W, and the second power is 8W-15W), that is, the ultrasonic atomizing sheet 4 is activated with a higher power. The high-power start can make the ultrasonic atomization sheet 4 enter the working state at the fastest speed, because the smoke oil is soaked on the surface of the ultrasonic atomization sheet 4 for a long time, and the composition in the smoke oil will be deposited on the surface of the ultrasonic atomization sheet 4, so When the manual switch 201 is turned on, it is necessary to start to break through the deposited composition of this layer with high power to prepare for the subsequent rapid atomization of smoke. In the stable working state after the pneumatic switch 202 is turned on, the controller 3 then controls the ultrasonic atomizer 4 to reduce the working power and work according to the normal power, so as to meet the user's pursuit of smoke.

The controller 3 is also used to control the ultrasonic atomizing sheet 4 to work at the second power when it is detected that the pneumatic switch 202 is turned on after the ultrasonic atomizing sheet 4 stops working. When the user smokes after exceeding the preset value t ₀ , the pneumatic switch 202 is turned on, and the ultrasonic atomizer 4 starts to work again to atomize the e-liquid to produce smoke, which can improve the atomization efficiency of the e-liquid and the user's use It is safe to avoid the hidden safety hazard caused by the operation of the ultrasonic atomizing sheet 4 caused by the manual switch 201 being triggered by mistake.

The controller 3 is also used to directly control whether the ultrasonic atomization sheet 4 works according to the on-off state of the pneumatic switch 202 when the manual switch 201 is not turned on. If the user does not operate the manual switch 201 and directly smokes, the controller 3 receives the signal from the pneumatic switch 202 and controls the ultrasonic atomizer 4 to work, and the ultrasonic atomizer atomizes the e-liquid to produce smoke. At this time, the ultrasonic atomization sheet works directly at the maximum power. To a certain extent, this method solves the problems of a certain hysteresis when atomizing e-liquid in the prior art, large particles and poor taste at the beginning of smoking, and the user does not need to operate the manual switch 201, which is more convenient. Therefore, the ultrasonic electronic cigarette of the present invention can be used in multiple ways, which can improve the convenience of use and avoid false triggering.

As shown in Figure 2, the ultrasonic electronic cigarette control method of the present invention includes the following steps:

Step A, the manual switch 201 is turned on;

Step B: After the controller 3 receives the signal that the manual switch 201 is turned on, it controls the timing module 5 to start timing. At the same time, the controller 3 controls the ultrasonic atomizer 4 to work at the first power; simultaneously, the controller 3 determines a pneumatic switch 202 is turned on, when the switch 202 is turned on for the pneumatic t _1, the control ultrasonic atomization work piece 4 to a second power; otherwise control the ultrasonic atomization sheet 4 is stopped; T ₁ ≤t ₀ .

In the step B, when the controller 3 detects that the pneumatic switch 202 is turned on after controlling the ultrasonic atomizing sheet 4 to stop working, it controls the ultrasonic atomizing sheet 4 to operate at the second power.

When the manual switch 201 is not turned on, the controller 3 directly controls the start and stop of the ultrasonic atomizer 4 according to the on-off state of the pneumatic switch 202 (that is, when the pneumatic switch is turned on, the controller 3 controls the ultrasonic atomizer to work, otherwise, Ultrasonic nebulizer does not work). The direct activation mode of the manual switch 201 is similar to the prior art, and is not shown in the flow chart, but it does not affect the understanding and implementation of the present invention by those skilled in the art.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present invention, many forms can be made without departing from the purpose of the present invention and the protection scope of the claims, and these all fall within the protection scope of the present invention.

Claims

An ultrasonic electronic cigarette control circuit, comprising a power supply (1), a starting unit (2) and a controller (3), the power supply (1) is electrically connected to the controller (3); the controller (3) is connected to the ultrasonic The atomizing sheet (4) and the starting unit (2) are electrically connected; it is characterized in that the controller (3) is electrically connected with the timing module (5); the starting unit (2) includes a manual switch (201) and a pneumatic Switch (202); where:

Timing module (5): used to start timing when the manual switch (201) is turned on, and send the timing duration t 1 to the controller (3);

Controller (3): used to control the timing module (5) to start timing after the manual switch (201) is turned on, and control the ultrasonic atomizer (4) to work at the first power, and turn on the manual switch (201) Then judge whether the pneumatic switch (202) is turned on, if the pneumatic switch (202) is turned on within the time t 1 , then the ultrasonic atomizer (4) is controlled to work at the second power; otherwise, the ultrasonic atomizer (4) is controlled to stop Work; where t 1 ≤ t 0 , t 0 is a preset value, and the preset value is set to the maximum working time of the ultrasonic atomizer (4) working at the first power; the first power ≠ the second power.
The ultrasonic electronic cigarette control circuit according to claim 1, characterized in that, after the ultrasonic atomization sheet (4) stops working, if the controller (3) detects that the pneumatic switch (202) is turned on, the controller (3) The ultrasonic atomization sheet (4) is controlled to work at the second power.
The ultrasonic electronic cigarette control circuit of claim 1, wherein the controller (3) is also used to directly control the on-off state of the pneumatic switch (202) when the manual switch (201) is not turned on The ultrasonic atomization sheet (4) starts and stops; preferably, when the pneumatic switch (202) is turned on, the ultrasonic atomization sheet works with maximum power.
The ultrasonic electronic cigarette control circuit of claim 1, wherein the first power is less than the second power; the first power is 8W-15W, and the second power is 18W-25W.
The ultrasonic electronic cigarette control circuit of claim 1, wherein the first power is greater than the second power; the first power is 38W-35W, and the second power is 18W-25W.
The ultrasonic electronic cigarette control circuit according to any one of claims 1 to 5, wherein the controller (3) includes a microprocessor (301), a boost module (302), and a high-frequency oscillation module (303). ), the power supply (1) is electrically connected through the microprocessor (301), the boost module (302), the high frequency oscillation module (303) and the ultrasonic atomizer (4) in turn, the start unit (2), the timing module (5) ) Are electrically connected to the microprocessor (301).
A method for controlling an ultrasonic electronic cigarette using the ultrasonic electronic cigarette control circuit according to any one of claims 1 to 6, characterized in that it comprises:

Judge whether the manual switch (201) is turned on, if yes, the ultrasonic atomizing sheet (4) works with the first power; if the pneumatic switch (202) is turned on within the time t 1 , the ultrasonic atomizing sheet (4) is turned on The second power work; otherwise, the ultrasonic atomizer (4) is controlled to stop working; where t 1 ≤ t 0 , t 0 is the preset value, and the preset value is set to the ultrasonic atomizer (4) at the first power The maximum working duration of work; the first power ≠ the second power.
The ultrasonic electronic cigarette control method according to claim 7, characterized in that, after the ultrasonic atomization sheet (4) stops working, if the pneumatic switch (202) is turned on, the ultrasonic atomization sheet (4) operates at the second power ; Preferably, the second power is the maximum working power of the ultrasonic atomization sheet.
The ultrasonic electronic cigarette control method according to claim 7, characterized in that, when the manual switch (201) is not turned on, the start and stop of the ultrasonic atomization sheet (4) is controlled according to the on-off state of the pneumatic switch (202); preferably Ground, when the pneumatic switch (202) is turned on, the ultrasonic atomizing sheet works with maximum power.
An ultrasonic electronic cigarette, characterized by comprising the ultrasonic electronic cigarette control circuit according to any one of claims 1 to 6.