WO2015042848A1

WO2015042848A1 - Smoking signal generation method, apparatus and electronic cigarette

Info

Publication number: WO2015042848A1
Application number: PCT/CN2013/084398
Authority: WO
Inventors: 向智勇
Original assignee: 吉瑞高新科技股份有限公司
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2015-04-02

Abstract

Disclosed are a smoking signal generation method, an apparatus and an electronic cigarette. The method comprises the following steps: when airflow passes through a sound production cavity, the sound production cavity vibrating to generate an ultrasonic wave; an acoustoelectric conversion unit arranged on the sound production cavity converting the ultrasonic wave into a voltage signal; and based on the voltage signal, a microprocessor generating a control signal so as to start a process for heating and atomizing cigarette liquid. A beneficial effect of implementing the present invention is: the sound production cavity is independent from other components, and infiltration of the cigarette liquid will not make a smoking signal generation apparatus lose effectiveness; when a user uses an electronic cigarette, the smoking airflow flows through the smoking signal generation apparatus, improving sensitivity and making generation of a smoking signal more accurate and sensitive; and a service life of the electronic cigarette is prolonged.

Description

Smoking signal generating method, device and electronic cigarette

Technical field

The present invention relates to the field of electronic cigarettes, and more particularly to a method and apparatus for generating smoking signals for electronic cigarettes and electronic cigarettes.

Background technique

E-cigarettes are products that heat atomizing the liquid to provide consumers with a substitute for cigarettes.

In the process of using the electronic cigarette, after the smoking signal (ie, the user smokes), the process of heating and atomizing the liquid is started. Therefore, generating a smoking signal is an important step in electronic cigarettes.

The current electronic cigarettes generate smoking signals mainly through two ways: one is to set a smoking sensor (microphone) in the electronic cigarette, the smoking sensor generates a smoking signal according to the airflow change during smoking; the second is to set a button in the electronic cigarette, when A smoking signal is generated when the button is pressed.

Most of the smoking sensors currently installed in electronic cigarettes are film-type capacitive air pressure sensors. When the user smokes, a difference in air pressure is generated across the two films of the sensor capacitor, and the film is bent and deformed, thus changing the capacitance, thereby generating a smoking signal.

However, the film type capacitive air pressure sensor has a high requirement for the cleanliness of the film surface. If the smoke liquid in the electronic cigarette penetrates into the film of the sensor, the sensor will fail due to the lack of cleanliness, and the smoking signal cannot be normally generated. This will affect the user's use and shorten the life of the electronic cigarette.

Summary of the invention

The technical problem to be solved by the present invention is to provide a smoking signal generating method, apparatus and electronic cigarette for the above-mentioned drawbacks of the prior art.

The technical solution adopted by the present invention to solve the technical problem thereof is: construction A smoking signal generating device is applied to an electronic cigarette, the device comprising an audible cavity disposed in the electronic cigarette airflow passage and an acoustic-electric conversion unit disposed on the sounding cavity;

The sounding cavity is configured to generate ultrasonic waves of a specific frequency when an airflow flows;

The acoustic-electrical conversion unit is configured to convert the ultrasonic wave into a voltage signal to generate a smoking signal.

Preferably, The sounding cavity includes a body, an inner hollow extending body formed along the body, a gas inlet provided on the body, and an audible air groove formed on a circumferential side wall of the extending body and A sound hole, the center line of the sounding groove and the center line of the sound hole coincide.

Preferably, the acoustic-electric conversion unit comprises a piezoelectric ceramic sheet.

An electronic cigarette includes: a microprocessor, an utterance cavity located in the electronic cigarette airflow passage, and an acoustic-electric conversion unit disposed on the sounding cavity; the acoustic-electric conversion unit and the microprocessor are electrically connected ;

The sounding cavity is configured to emit ultrasonic waves of a specific frequency when an airflow flows;

The acoustic-electric conversion unit is configured to convert the ultrasonic wave into a voltage signal and transmit the signal to the microprocessor;

The microprocessor is configured to generate a control signal according to the voltage signal to initiate a process of heating and atomizing the liquid.

Preferably, The electronic cigarette further includes a sleeve; the sleeve is provided with a through hole, the through hole is continuous with the air flow passage, and the airflow flows through the through hole and the air inlet to the extension body to generate the ultrasonic wave .

Preferably, the microprocessor is configured to compare the voltage signal with a preset voltage threshold, and if the comparison result is that the voltage signal is greater than a preset voltage threshold, generating a control signal to Start the process of heating and atomizing the liquid.

Preferably, the electronic cigarette further comprises: a power supply battery, a heating wire and a switch circuit; wherein the power supply battery is connected to the microprocessor; and the switch circuit is respectively connected to the power supply battery, the microprocessor and the heating wire;

The power supply battery is configured to store electrical energy and provide a supply voltage;

The switch circuit is configured to be turned on according to a control signal of the microprocessor to enable the power supply battery to supply power to the heating wire Start the process of heating and atomizing the liquid.

A smoking signal generating method includes the following steps:

When the airflow passes through the sounding cavity, the sounding cavity vibrates to generate ultrasonic waves;

An acoustic-electric conversion unit disposed on the sound-emitting cavity converts the ultrasonic wave into a voltage signal;

The microprocessor generates a control signal based on the voltage signal to initiate a process of heating the atomization of the liquid.

Preferably, the process for the microprocessor to generate a control signal according to the voltage signal to initiate the heating and atomization of the liquid smoke comprises:

The microprocessor compares the voltage signal with a set voltage threshold, and if the voltage signal is greater than the set voltage threshold, it is determined that a smoking signal is generated; if it is determined that a smoking signal is generated, the microprocessor outputs The control signal initiates the process of heating and atomizing the liquid.

The smoking signal generating method, device and electronic cigarette embodying the invention have the following beneficial effects: the sounding cavity and other components (such as a microprocessor, a power supply circuit, a battery, etc.) are independent, and the penetration of the liquid smoke does not cause smoking. The signal generating device fails; and the smoking airflow (before atomization) when the user uses the electronic cigarette flows through the smoking signal generating device, which enhances the sensitivity, makes the smoking signal generation more accurate and sensitive, and prolongs the service life of the electronic cigarette.

DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a structural diagram of a smoking signal generating apparatus according to an embodiment of the present invention;

Figure 2 is a structural view of an electronic cigarette according to a first preferred embodiment of the present invention;

Figure 3 is a structural view of an electronic cigarette according to a second preferred embodiment of the present invention;

4 is a schematic structural view of a sounding cavity according to an embodiment of the present invention;

Figure 5 is a schematic structural view of an electronic cigarette according to a second preferred embodiment of the present invention;

Figure 6 is a cross-sectional view of the electronic cigarette shown in Figure 5;

Figure 7 is a circuit diagram of an electronic cigarette according to an embodiment of the present invention;

Fig. 8 is a flow chart showing a method of generating a smoking signal according to an embodiment of the present invention.

detailed description

For a better understanding of the technical features, objects and effects of the present invention, the embodiments of the present invention are described in detail with reference to the accompanying drawings.

See Figure 1 It is a structural diagram of a smoking signal generating device of an embodiment of the present invention. The smoking signal generating device of the embodiment of the invention is applied to an electronic cigarette. The device comprises an audible cavity 1 located in the electronic cigarette airflow passage and is arranged in the sounding cavity 1 On the sound and electricity conversion unit 2 . Specifically, the acoustic-electric conversion unit 2 may be disposed on an outer surface or an inner surface of the sounding cavity 1. Further, a hole for accommodating the electroacoustic conversion unit 2 may be formed in the sounding chamber 1.

The sounding chamber 1 includes an air inlet through which the airflow generated by the user smokes through the sounding chamber 1 .

When there is airflow through the sounding cavity 1, the sounding cavity 1 generates ultrasonic waves of a specific frequency (for example, 20000HZ or more); The conversion unit 2 converts the ultrasonic waves into voltage signals to generate a smoking signal.

Sounding cavity 1 of an embodiment of the invention 1 It can be of any shape, and it is only required to generate ultrasonic waves when the smoking airflow generated by the user smokes. It should be understood that in an embodiment of the invention, ultrasonic waves are generated as the airflow flows through the sounding cavity 1.

The smoking signal generating device of the embodiment of the present invention is composed of the sounding cavity 1 and the acoustic electricity conversion unit 2, which is higher than that in the prior art. The film type capacitive air pressure sensor (microphone) has higher sensitivity, and does not cause the smoking signal to be generated normally due to the contamination of the liquid smoke, thereby improving the user experience and prolonging the service life of the electronic cigarette.

See Figure 2 A structural view of an electronic cigarette according to a first preferred embodiment of the present invention. In the first preferred embodiment of the present invention, the electronic cigarette is an integrated electronic cigarette, that is, the battery rod and the atomizer of the electronic cigarette are integrally formed.

The electronic cigarette of the first preferred embodiment of the present invention comprises: a sleeve 4, an acoustic chamber 1, an acoustic-electric conversion unit 2, and a microprocessor 3. casing 4 includes a receiving space for accommodating the sounding chamber 1. The acoustic-electric conversion unit 2 and the microprocessor 3 are both disposed in the sleeve 4. The electro-acoustic conversion unit 2 is disposed on the sounding cavity 1 and the acoustic-electric conversion unit 2 It is also electrically connected to the microprocessor 3.

The electronic cigarette of the first preferred embodiment of the present invention includes an audible cavity 1 which is audible when there is airflow through the audible cavity 1 Generating an ultrasonic wave of a specific frequency; the acoustic-electrical conversion unit 2 converts the ultrasonic wave of the specific frequency into a voltage signal (ie, generates a smoking signal) and transmits it to the microprocessor 3; the microprocessor 3 The voltage signal is compared with a preset voltage threshold, and based on the comparison result, it is determined whether a smoking signal is generated. Specifically, if the microprocessor 3 The received voltage signal is greater than the set voltage threshold, that is, the smoking signal is determined; if it is determined that the smoking signal is generated, the microprocessor 3 outputs a control signal to start the process of heating and atomizing the liquid.

In a first preferred embodiment of the invention, the acoustic-electrical conversion unit 2 Includes piezoelectric ceramic sheets. When the electronic cigarette user smokes, the airflow generated by the smoking action flows through the sounding chamber 1 , and the sound chamber 1 An ultrasonic wave of a specific frequency is generated; when the generated ultrasonic wave vibrates the piezoelectric ceramic piece, the piezoelectric ceramic piece generates a voltage signal, that is, the piezoelectric ceramic piece converts the ultrasonic wave into a voltage signal.

It should be understood that in order to enable the airflow generated by the user to smoke into the air inlet of the sounding cavity 1, the sleeve of the electronic cigarette 4 The through hole should be correspondingly arranged, and the through hole is electrically connected to the air inlet of the sounding cavity 1, that is, the airflow flowing from the through hole can flow into the sounding cavity 1 through the air inlet to make the sounding cavity Vibration generates ultrasonic waves.

The size of the piezoelectric ceramic piece can be determined as the resonance frequency according to the sounding frequency of the sounding cavity 1.

The microprocessor 3 of the embodiment of the present invention may be a single chip microcomputer, an MCU or an ASIC chip or the like.

Referring to FIG. 2, the electronic cigarette according to the first preferred embodiment of the present invention further includes a power supply battery 5, a heating wire 6 and a switch circuit disposed in the sleeve 4. 7 . The power supply battery 5 is used to store electrical energy and supply voltage. The switch circuit 7 is used to control the on or off of the power supply circuit of the power supply battery 5 to the heating wire according to the control signal of the microprocessor 3. Electric heating wire 6 Used for heating to atomize smoke liquid. The power supply battery 5 is connected to the microprocessor 3; the switch circuit 7 is connected to the power supply battery 5, the microprocessor 3, and the heating wire 7, respectively.

In the first preferred embodiment of the present invention, the microprocessor 3 outputs a control signal to cause the process of heating and atomizing the liquid to start. The control switch circuit 7 is turned on, so that the power supply battery 5 is turned on to the power supply circuit of the heating wire 6. After the power supply circuit is turned on, the heating wire 6 is supplied with heat to generate heat, so that the liquid smoke is heated and atomized.

See Figure 3 for A structural view of an electronic cigarette according to a second preferred embodiment of the present invention. In a second preferred embodiment of the invention, the electronic cigarette comprises a detachably connected battery rod 11 and an atomizer 12.

The atomizer 12 of the electronic cigarette according to the second preferred embodiment of the present invention includes: an atomizing sleeve 21 and a heating wire disposed in the atomizing sleeve 21 .

The battery rod 11 of the electronic cigarette according to the second preferred embodiment of the present invention comprises: a battery sleeve 41, an audible cavity 1 , and an acoustic-electric conversion unit 2 And microprocessor 3. The battery cannula 41 includes a receiving space for accommodating the sounding cavity 1. The acoustic-electric conversion unit 2 and the microprocessor 3 are both disposed in the battery cannula 41. Acoustoelectric conversion unit 2 is disposed on the sounding cavity 1, and the acoustic-electrical conversion unit 2 is also electrically connected to the microprocessor 3.

It should be understood that the battery cannula 41 and the atomizing cannula 21 can be collectively referred to as a cannula.

In addition, the battery rod 11 further includes a power supply battery 5 disposed in the battery casing 41, a switch circuit 7 and a connection heating wire. The power supply interface 8 of 7 , wherein the power supply interface 8 is connected to the switch circuit 7 . When the atomizer 12 is connected to the battery rod 11, the two ends of the power supply interface 8 are also respectively connected to the heating wire of the atomizer 12. Connected at both ends.

An electronic cigarette battery rod according to a second preferred embodiment of the present invention includes an audible cavity 1 for audible cavity 1 when an airflow flows through the audible cavity 1 Generating an ultrasonic wave of a specific frequency; the acoustic-electrical conversion unit 2 converts the ultrasonic wave of the specific frequency into a voltage signal and transmits it to the microprocessor 3; the microprocessor 3 The voltage signal is compared with the set voltage threshold, and whether or not the smoking signal is generated is determined based on the comparison result. Specifically, if the microprocessor 3 The received voltage signal is greater than the set voltage threshold, that is, it is determined to generate a smoking signal; if it is determined that the smoking signal is generated, the microprocessor 3 outputs a control signal to start the process of heating and atomizing the liquid. Microprocessor 3 The output control signal causes the process of heating and atomizing the liquid to start, and the microprocessor 3 controls the switching circuit 7 to be turned on, so that the power supply battery 5 is turned on to the power supply circuit of the heating wire 6. After the power supply circuit is turned on, the heating wire 6 It is heated by electricity, so that the liquid is heated and atomized.

It should be understood that in the embodiment of the present invention, the sounding cavity 1 and the acoustic-electric conversion unit 2 may also be disposed on the atomizing sleeve 21 In the above, only when the atomizer and the battery rod are connected, the acoustic-electrical conversion unit 2 is connected to the microprocessor 3, and the above-mentioned realization of the smoking signal can be realized. When the sound chamber 1 and the sound and electricity conversion unit 2 are disposed in the atomization sleeve In the case of 21, the functions of the respective parts are the same as those of the battery casing 41, and will not be described here.

It should be understood that in order to enable the airflow generated by the user to smoke into the air inlet of the sounding chamber 1, the battery sleeve 41 or the atomizing sleeve of the electronic cigarette 21 should be correspondingly provided with a through hole, and the through hole is electrically connected with the air inlet of the sounding cavity 1, that is, the airflow flowing from the through hole can flow into the sounding cavity 1 through the air inlet to make the sounding cavity The body vibrates to generate ultrasonic waves.

4 is a schematic structural view of a sounding cavity according to an embodiment of the present invention. The sounding cavity 1 includes a body 404 along the body 404 An inner hollow extension 405 formed by the reduced diameter, an air inlet 401 disposed on the body 404, and an audible air groove 402 and a sound hole 403 formed on the circumferential side wall of the extension body 405 . The center line of the sounding groove 402 coincides with the center line of the sounding hole 403 (i.e., the center line of the sounding groove 402 and the center line of the sounding hole 403 are the same horizontal line, and the horizontal line and the sounding cavity 1 The central axes are parallel). When the airflow flows from the air inlet 401 into the inner hollow extension 405 When vibrating to generate ultrasonic waves. Specifically, how to generate ultrasonic waves is a technique commonly used by those skilled in the art (for example, the principle of ultrasonic generation of a dog flute, a whistle, etc.), as long as it is a cavity structure that can generate ultrasonic waves, and thus will not be described in detail herein.

FIG. 5 is a schematic structural view of an electronic cigarette according to a second preferred embodiment of the present invention. See Figure 5 In this embodiment, the electronic cigarette includes a detachably connected battery rod (not shown) and an atomizer (not shown). The atomizer includes a nozzle 200; the battery rod includes a battery sleeve 41, and a lamp cap 300 , sound chamber 1 and acoustic conversion unit 2 . Both the sounding chamber 1 and the acoustic-electrical conversion unit 2 are disposed in the battery cannula 41.

6 is a cross-sectional view of the electronic cigarette shown in FIG. 5. The sounding chamber 1 includes an air inlet 401, an audible air groove 402, and a sound hole 403 and ontology 404. The body 404 is embedded in the battery cannula 41. An inner hollow extension (not shown) is formed along the body diameter reduction. Sounding trough 402 and sound hole 403 It is opened on the 405 circumferential side wall of the extension body. The center line of the audible air groove 402 coincides with the center line of the sound hole 403. The audible air reservoir 402 includes a ramp 4021. Bevel 4021 Tilting toward the central axis of the sounding cavity 1, that is, the first end 4022 to the second end 4023 of the inclined surface 4021 are gradually inclined toward the central axis of the sounding cavity 1, and the first end 4022 is away from the body. At one end of the 404, the second end 4023 is near one end of the body 404. It should be understood that the sounding cavity 1 of the embodiment of the present invention It is disposed on the air flow passage of the electronic cigarette battery casing. The air flow passage is formed by: providing a through hole in the battery sleeve when the user is from the suction nozzle 200 When the smoking action is started, the external airflow enters through the through hole, thereby forming an air flow passage. When the user smokes, the airflow over the airflow passage can enter the inner hollow extension from the through hole and the air inlet. When the airflow enters the extension, the bevel is made 4021 Vibration occurred. Referring to Fig. 5, the acoustic-electric conversion unit 2 is disposed on the outer side wall of the sounding cavity. In addition, the acoustic-electric conversion unit 2 can also be disposed on the inner side wall of the sounding cavity.

In addition, the sounding cavity shown in Figure 6 can also be placed in the atomizing sleeve, just to meet the setting of the airflow channel.

It should be understood that the sounding cavity shown in Fig. 6 is equally applicable to the first preferred embodiment of the present invention and the smoking signal generating device. When Figure 6 The sounding cavity is suitable for the first preferred embodiment, as long as the sounding cavity is disposed on the airflow passage when the electronic cigarette is smoked, that is, the sounding cavity can be disposed on the airflow passage of the sleeve. Acoustoelectric conversion unit 2 It is placed on the sounding cavity and connected to the microprocessor.

7 is a circuit diagram of an electronic cigarette according to an embodiment of the present invention. The model number of the microprocessor 3 is SN8P2711. Acoustoelectric conversion unit 2 Includes piezoelectric ceramic sheets. The switching circuit 7 includes a MOS transistor Q1. The piezoceramic piece is connected to the second pin of the microprocessor 3. MOS tube Q1 source connected to the power supply battery 5 The negative electrode and the gate are connected to the fourth pin of the microprocessor 3, and the drain is connected to one end of the heating wire 6; the other end of the heating wire 6 is connected to the positive electrode of the power supply battery 5.

The MOS transistor Q1 in the embodiment of the present invention can also be replaced with a triode, a transistor, a thyristor or the like to achieve the same function.

In addition, the circuit of the electronic cigarette according to the embodiment of the present invention further includes a light emitting diode D1 for displaying the working state of the electronic cigarette, and a Zener diode for voltage stabilization. D2 and resistor R8. Wherein, the first pin of the microprocessor 3 is connected to the cathode of the Zener diode D2; the anode of the Zener diode D2 is connected to the anode of the power supply battery 5; the light emitting diode D1 One end of the anode is connected to the resistor R7, the other end of the resistor R7 is connected to the anode of the power supply battery 5; the cathode of the light-emitting diode D1 is connected to the fifth pin of the microprocessor 3; the microprocessor 3 The third pin is connected to one end of the resistor R8 and the drain of the MOS transistor Q1; the other end of the resistor R8 is connected to the anode of the power supply battery 5.

Referring to Figure 7, the microprocessor 3 outputs a control signal to start the process of heating and atomizing the liquid, which is the microprocessor 3. The MOS transistor Q1 in the switching circuit 7 is turned on by controlling the fourth pin to be high.

Specifically, in the working process, when the microprocessor 3 receives the voltage signal of the piezoelectric ceramic piece, the voltage signal and the preset The voltage threshold is compared. If the received voltage signal is greater than the set voltage threshold, the control MOS transistor Q1 is turned on to turn on the power supply circuit of the heating wire 6. After the power supply circuit is turned on, the heating wire 6 It is heated by electricity, so that the liquid is heated and atomized.

During the power supply process, the microprocessor 3 controls the MOS transistor Q1 by controlling the fourth pin to output a stable duty cycle PWM pulse. The switching is performed to adjust the output voltage to adjust the driving mode of the heating wire 6. And during the power supply process, the microprocessor 3 Short-circuit protection can be achieved by detecting the voltage change at the ninth pin. The specific implementation process is as follows: if a short circuit occurs, the voltage detected by the ninth pin will be abrupt (voltage rise), and the microprocessor 3 sets the fourth pin to a low level, so that The MOS transistor Q1 is turned off, thereby stopping the power supply and achieving short-circuit protection. During the power supply process, the LED D1 can indicate the working state, and realize the fade display of smoking and stoppage. The specific implementation is that the microprocessor 3 By controlling the voltage of the fifth leg, the luminous intensity of the light emitting diode is different, thereby indicating that the electronic cigarette is in a normal working state or in an abnormal working state, and the abnormal working state includes: short circuit, battery low voltage, etc.; or, by controlling the fifth The output voltage of the foot is continuously increased or decreased to realize the light emitting diode The continuous change in the brightness of D1 allows for fade-in and fade-out effects when smoking or stopping.

In addition, during the power supply process, if the microprocessor 3 When the level of the second pin is at a high level (or low voltage) for a certain period of time, it means that there is always a smoking signal during this time (that is, the voltage transmitted by the piezoelectric ceramic piece is always higher than the preset voltage threshold). ), that is, this period of time has been smoking, at this time, the microprocessor 3 controllable MOS tube Q1 The deadline is to avoid accidents such as sending a hot mouth for a long time in a smoking state to achieve long-suck protection. In an embodiment of the invention, this period of time can be set to control the length of time allowed for a single smoking.

During the power supply process, the microprocessor 3 The voltage of the power supply process can also be detected by the voltage of the third pin, so that when the voltage is higher than the preset value, the fourth pin is controlled to turn off the MOS transistor Q1 to achieve overvoltage protection.

It should be understood that Figure 7 of the present invention The circuit shown is applicable to the electronic cigarette of the first preferred embodiment and also to the electronic cigarette of the second preferred embodiment.

8 is a flow chart of a smoking signal generating method according to an embodiment of the present invention. The method includes the following steps:

Step S101: When the airflow passes through the sounding cavity 1, the sounding cavity 1 vibrates to generate ultrasonic waves.

Step S102: The acoustic-electrical conversion unit 2 disposed on the sounding cavity 1 converts the ultrasonic wave into a voltage signal.

Step S103: The microprocessor 3 generates a control signal according to the voltage signal to start the process of heating and atomizing the liquid.

Specifically, the microprocessor 3 Comparing the voltage signal with the set voltage threshold, if the received voltage signal is greater than the set voltage threshold, it is determined that a smoking signal is generated; if it is determined that a smoking signal is generated, the microprocessor 3 The output control signal initiates the process of heating and atomizing the liquid.

The smoking signal generating device, method and electronic cigarette according to the embodiments of the present invention have the following advantages: the sounding cavity and other components (such as a microprocessor, a power supply circuit, a battery, etc.) are independent, and the penetration of the liquid smoke does not cause a smoking signal. The generating device fails; and the smoking airflow (before atomization) when the user uses the electronic cigarette flows through the smoking signal generating device, which enhances the sensitivity and makes the smoking signal generation more accurate and sensitive.

The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive, and those skilled in the art In the light of the present invention, many forms may be made without departing from the spirit and scope of the invention as claimed.

Claims

A smoking signal generating device is applied to an electronic cigarette, characterized in that the device comprises an utterance cavity located in the electronic cigarette airflow passage and an acoustic-electric conversion unit disposed on the sounding cavity;

The sounding cavity is configured to generate ultrasonic waves of a specific frequency when an airflow flows;

The acoustic-electrical conversion unit is configured to convert the ultrasonic wave into a voltage signal to generate a smoking signal.
According to claim 1 The smoking signal generating device, wherein the sounding cavity includes a body, an inner hollow extending body formed along a diameter of the body, an air inlet provided on the body, and the opening An audible air groove and a sounding hole on the circumferential side wall of the extension body, the center line of the sounding air groove and the center line of the sounding hole coincide.
A smoking signal generating apparatus according to claim 1, wherein said acoustic-electric conversion unit comprises a piezoelectric ceramic sheet.
An electronic cigarette, comprising: a microprocessor, an utterance cavity located in the electronic cigarette airflow passage, and an acoustic-electric conversion unit disposed on the sound-emitting cavity; the acoustic-electric conversion unit and the micro Processor electrical connection;

The sounding cavity is configured to emit ultrasonic waves of a specific frequency when an airflow flows;

The acoustic-electric conversion unit is configured to convert the ultrasonic wave into a voltage signal and transmit the signal to the microprocessor;

The microprocessor is configured to generate a control signal according to the voltage signal

Start the process of heating and atomizing the liquid.
According to claim 4 The electronic cigarette, characterized in that the sounding cavity comprises a body, an inner hollow extending body formed along the body, a gas inlet provided on the body, and an extension body The sounding air groove and the sounding hole on the circumferential side wall, the center line of the sounding air groove and the center line of the sounding hole coincide.
According to claim 5 The electronic cigarette, characterized in that the electronic cigarette further comprises a sleeve; the sleeve is provided with a through hole, the through hole penetrates with the air flow passage, and the air flow passes through the through hole and the air inlet The ultrasonic waves are generated by flowing into the extension.
The electronic cigarette according to claim 4, wherein the acoustic-electric conversion unit comprises a piezoelectric ceramic sheet.
The electronic cigarette according to claim 4, wherein The microprocessor is configured to compare the voltage signal with a preset voltage threshold. If the comparison result is that the voltage signal is greater than a preset voltage threshold, a control signal is generated to initiate a process of heating and atomizing the liquid.
According to claim 4 The electronic cigarette is characterized in that: the electronic cigarette further comprises: a power supply battery, a heating wire and a switch circuit; wherein the power supply battery and the microprocessor are connected; the switch circuit is respectively connected with the power supply battery, the microprocessor and the electric heater Wire connection

The power supply battery is configured to store electrical energy and provide a supply voltage;

The switch circuit is configured to be turned on according to a control signal of the microprocessor to enable the power supply battery to supply power to the heating wire Start the process of heating and atomizing the liquid.
A smoking signal generating method, comprising the steps of:

When the airflow passes through the sounding cavity, the sounding cavity vibrates to generate ultrasonic waves;

An acoustic-electric conversion unit disposed on the sound-emitting cavity converts the ultrasonic wave into a voltage signal;

The microprocessor generates a control signal based on the voltage signal to initiate a process of heating the atomization of the liquid.
The smoking signal generating method according to claim 10, wherein said microprocessor generates a control signal based on said voltage signal The process of starting the heating and atomization of the liquid liquid specifically includes:

The microprocessor compares the voltage signal with a set voltage threshold, and if the voltage signal is greater than the set voltage threshold, it is determined that a smoking signal is generated; if it is determined that a smoking signal is generated, the microprocessor outputs The control signal initiates the process of heating and atomizing the liquid.