WO2020140739A1

WO2020140739A1 - Electromagnetic induction heating electronic cigarette

Info

Publication number: WO2020140739A1
Application number: PCT/CN2019/125610
Authority: WO
Inventors: 陈臻昊; 杨勋宇; 蔡尧钟
Original assignee: 深圳因味科技有限公司
Priority date: 2019-01-02
Filing date: 2019-12-16
Publication date: 2020-07-09
Also published as: CN109527658A

Abstract

An electromagnetic induction heating electronic cigarette, comprising a suction action sensing module (20), a cigarette container for inserting a cigarette, an alternating magnetic field generator module (30), a magnetic induction heating body (50) and a processor module (40), the magnetic induction heating body (50) being provided in the cigarette container, the suction action sensing module (20) detecting a user's suction action and feeding back same to the processor module (40), and the processor module (40) controlling the alternating magnetic field generator module (30) to generate an alternating magnetic field, so that the magnetic induction heating body (50) generates heat, so as to heat the cigarette in the cigarette container and generate smoke. The magnetic induction heating body (50) generates an eddy by means of the alternating magnetic field, so that the tobacco is heated uniformly by rapidly raising the temperature to heat the tobacco, the flavor from the tobacco is stable, having a good taste, thereby providing a good user experience.

Description

Electromagnetic induction type heating electronic cigarette

Technical field

The invention relates to the technical field of electronic cigarettes, in particular to an electromagnetic induction heating electronic cigarette.

Background technique

At present, heating and non-burning electronic cigarettes are more and more popular. Heating and non-burning electronic cigarettes heat tobacco through a precision electronic chip, rather than burning tobacco like ordinary cigarettes. The tobacco in cigarettes is at a temperature of more than 600 ℃ Combustion produces fumes containing harmful chemicals. The heating non-burning electronic cigarette heats the tobacco to a temperature below 350°C without burning and without an open flame. Heating at a lower temperature releases the true taste of tobacco. Because tobacco is heated without burning, harmful chemicals are significantly reduced compared to cigarettes.

Most of the heating non-burning electronic cigarettes on the market use ceramic sheets or ring-shaped ceramic heating sleeves as heating sources, which convert electrical energy into thermal energy to heat tobacco. However, when the ceramic heating sheet heats up, the cigarettes are radiated from the center to the surroundings, the heating is uneven, and the tobacco has a poor heating taste. In addition, ceramic heating plates are relatively fragile and easy to break, and the production of ceramic heating plates is more difficult, the cost is also high, and the consistency of product production is poor. The annular ceramic heating sleeve is radiated from the outside to the inside through the heat radiation method, and it is easy to scorch the paper package of cigarettes and produce odor.

Therefore, the existing technology needs to be improved and improved.

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an electromagnetic induction-heated electronic cigarette, which can rapidly heat the tobacco by eddy current generated by the magnetic induction heating body through the alternating magnetic field to heat the tobacco, the tobacco is heated uniformly, and the tobacco emits a stable smell .

To solve the above technical problems, the present invention adopts the following technical solutions:

An electromagnetic induction-heated electronic cigarette includes an inhalation motion induction module, a smoking container for inserting cigarettes, an alternating magnetic field generator module, a magnetic induction heating body and a processor module. The magnetic induction heating body is arranged in the smoking container The inhalation motion sensing module detects the user's suction motion and feeds it back to the processor module. The processor module controls the alternating magnetic field generator module to generate an alternating magnetic field to heat the magnetic induction heating body to heat the smoking container. Smoke and produce smoke.

In the electromagnetic induction heating electronic cigarette, the alternating magnetic field generator module includes a switching unit and an electromagnetic induction unit, and the power supply end of the switching unit is connected to the power supply module of the electromagnetic induction heating electronic cigarette. The control end is connected to the processor module, and the output end of the switch unit is connected to the electromagnetic induction unit.

In the electromagnetic induction heating electronic cigarette, the electromagnetic induction unit includes a first MOS tube, a second MOS tube, a first capacitor, a first voltage regulator tube, a second voltage regulator tube, a first diode, a first Two diodes, an alternating magnetic field generating coil, a first energy storage inductance, a second energy storage inductance, a first resistance, a second resistance, a third resistance and a fourth resistance, the gate of the first MOS tube is connected to the first The negative electrode of a voltage regulator tube and the positive electrode of the second diode are connected to the output terminal of the switching unit through the first resistor, and also connected to the positive electrode of the first voltage regulator tube, the positive electrode of the second voltage regulator tube The source of a MOS tube, the drain of the second MOS tube and one end of the third resistor, the drain of the first MOS tube is connected to the negative electrode of the first diode, one end of the first capacitor and the alternating magnetic field generating coil One end of the switch is also connected to the output end of the switching unit and one end of the first energy storage inductor through the second energy storage inductor, the other end of the first energy storage inductor is connected to the other end of the alternating magnetic field generating coil, the other end of the first capacitor, The source of the second MOS tube and the negative electrode of the second diode, the gate of the second MOS tube is connected to the negative electrode of the second regulator tube, the other end of the third resistor and the positive electrode of the first diode, The output end of the switch unit and one end of the first energy storage inductor are connected through a fourth resistor, and the magnetic induction heating body is inserted into the alternating magnetic field generating coil.

In the electromagnetic induction heating electronic cigarette, the first MOS tube and the second MOS tube are P-channel field effect tubes.

In the electromagnetic induction heating electronic cigarette, the switch unit includes a third MOS tube, a fourth MOS tube, a fifth resistor, a sixth resistor, a third diode, and a second capacitor, and the third MOS tube The source of the switch is the power supply end of the switch unit, which is connected to the power supply module, the negative electrode of the third diode and the end of the second capacitor. The drain of the third MOS tube is the output end of the switching unit, which is connected to the anode of the third diode, the other end of the second capacitor, one end of the first energy storage inductor and one end of the first resistor, the sixth One end of the resistor is the control end of the switch unit, which is connected to the processor module, the other end of the sixth resistor is connected to the gate of the fourth MOS tube, and the source of the fourth MOS tube is grounded.

In the electromagnetic induction heating electronic cigarette, the third MOS tube is a P-channel field effect tube, and the fourth MOS tube is an N-channel field effect tube.

The electromagnetic induction heating electronic cigarette further includes a human-machine interaction module for receiving user input instructions, and the human-machine interaction module is connected to the processor module.

In the electromagnetic induction heating electronic cigarette, the processor module includes a microprocessor, and the I2C_SCL/P04, P22, and P23 pins of the microprocessor are connected to a suction motion sensing module, and the OSCOUT/ of the microprocessor The P32 pin is connected to the human-computer interaction module, the P13 pin of the microprocessor is connected to the control end of the switch unit, and the SPI_SCK/P15 pin of the microprocessor is connected to the power supply module.

Compared with the prior art, the electromagnetic induction heating electronic cigarette provided by the present invention includes an inhalation motion induction module, a smoking container for inserting cigarettes, an alternating magnetic field generator module, a magnetic induction heating body and a processor module. A magnetic induction heating element is provided in the smoking container, and the inhalation action sensing module detects the user's smoking action and feeds it back to the processor module. The processor module controls the alternating magnetic field generator module to generate an alternating magnetic field to cause magnetic induction The heating element heats up to heat the cigarettes in the smoking container and generates smoke. The alternating magnetic field causes the magnetic induction heating element to generate eddy currents. The method of rapidly heating the tobacco is heated, so that the tobacco is heated uniformly, the tobacco emits a stable smoke taste, and the mouthfeel is better. User experience.

BRIEF DESCRIPTION

FIG. 1 is a structural block diagram of an electromagnetic induction heating electronic cigarette provided by the present invention.

2 is a circuit diagram of an electromagnetic induction unit of an electromagnetic induction type heating electronic cigarette provided by the present invention.

3 is a circuit diagram of a switch unit of an electromagnetic induction type heating electronic cigarette provided by the present invention.

4 is a circuit diagram of a processor module of an electromagnetic induction heating electronic cigarette provided by the present invention.

detailed description

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

Referring to FIG. 1, the electromagnetic induction heating electronic cigarette provided by the present invention includes a power module 10, an inhalation motion induction module 20, a smoking container (not shown), an alternating magnetic field generator module 30, a processor module 40 and magnetic induction Heating element 50, the power module 10 is connected to the suction motion sensing module 20, the alternating magnetic field generator module 30, the processor module 40, the suction motion sensing module 20, the smoking container, the alternating magnetic field generator module 30 are all Device 40 is connected, the magnetic induction heating element 50 is located in the smoking container 30.

The inhalation motion sensing module 20 can be implemented by an airflow sensing sensor, and when an inhalation motion is detected, a signal is fed back to the processor module 40. The power module 10 is used to provide the required voltage for the inhalation motion sensing module 20, the alternating magnetic field generator module 30 and the processor module 40. The inhalation motion sensing module 20 detects the user's suction motion and feeds it back to the processor module 40. The processor module 40 controls the alternating magnetic field generator module 30 to be turned on, so that the alternating magnetic field generator module generates an alternating magnetic field, and the magnetic induction heating element heats up to heat the smoke oil stored in the smoking container. Substance and convert it into a smoke state that can be inhaled by people. In the present invention, the processor module 40 controls the alternating magnetic field generator module 30 to generate an alternating magnetic field to cause the eddy current of the magnetic induction heating body 50 to rapidly heat up and heat the cigarettes in the smoking container and generate smoke. The alternating magnetic field heats the magnetic induction The body generates eddy current and rapidly heats up the heating method, so that the tobacco is heated evenly, the tobacco emits a stable smell, and the taste is good, thereby having a better user experience.

In specific implementation, the alternating magnetic field generator module 30 may have multiple implementations. The present invention provides an application embodiment to describe the circuit structure and working mode of the alternating magnetic field generator module 30 in detail, but it should not be understood. In order to restrict the implementation of this new type.

2 and FIG. 3 together, in the electromagnetic induction heating electronic cigarette of the present invention, the alternating magnetic field generator module 30 includes a switch unit 301 and an electromagnetic induction unit 302, and the power supply end of the switch unit 301 is connected In the power supply module 10, the control end of the switch unit 301 is connected to the processor module, and the output end of the switch unit 301 is connected to the electromagnetic induction unit 302.

The electromagnetic induction unit 302 includes the electromagnetic induction unit including a first MOS transistor Q1, a second MOS transistor Q2, a first capacitor C1, a first voltage regulator D1, a second voltage regulator D2, and a first diode D3 , A second diode D4, an alternating magnetic field generating coil L1, a first energy storage inductor L2, a second energy storage inductor L3, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4.

When the gate of the first MOS transistor Q1 and the second MOS transistor Q2P channel field effect transistor is low, the MOS transistor is turned on. The magnetic induction heating element can be made of stainless iron sheet to be a magnetic induction heating element as a heating core component; the magnetic induction heating element can also be other metal conductors or other alloy metal conductors. The present invention is preferably a pure iron sheet or pure iron wire (or other pure metal). The resistance of the pure iron sheet or pure iron wire is very small, the eddy current generated is large, and the thermal effect of the current can make the temperature of the iron (or other metal) reach very high High, or even the melting point of iron (or other metals), so that the iron melts, so that only a low driving voltage is required to cause the temperature of the magnetic induction heating element to be around 350°C.

The gate of the first MOS transistor Q1 is connected to the negative electrode of the first regulator D1 and the positive electrode of the second diode D4, and is connected to the output terminal of the switching unit through the first resistor R1, and is also connected to the second resistor R2 The anode of a voltage regulator D1, the anode of a second voltage regulator D2, the source of the first MOS transistor Q1, the drain of the second MOS transistor Q2 and one end of the third resistor R3, the drain of the first MOS transistor Q1 Connect the negative electrode of the first diode D3, one end of the first capacitor and one end of the alternating magnetic field generating coil L1, and also connect the output end of the switching unit and one end of the first energy storage inductor L2 through the second energy storage inductor L3 , The other end of the first energy storage inductor L2 is connected to the other end of the alternating magnetic field generating coil L1, the other end of the first capacitor, the source of the second MOS transistor Q2, and the cathode of the second diode D4. The gate of the MOS transistor Q2 is connected to the negative electrode of the second regulator tube D2, the other end of the third resistor R3 and the positive electrode of the first diode D3, and is also connected to the output terminal of the switching unit and the first energy storage through the fourth resistor R4 At one end of the inductor L2, the magnetic induction heating element is inserted into the alternating magnetic field generating coil L1, and the alternating magnetic field generating coil L1 generates an alternating magnetic field to cause the magnetic induction heating element to generate heat.

In this embodiment, the first capacitor C1 is a resonant capacitor and forms a resonant circuit with the alternating magnetic field generating coil L1. The first capacitor is continuously charged and discharged to cause the alternating magnetic field generating coil L1 to generate a changing magnetic field, thereby causing magnetic induction heating The body quickly heats up and heats up. The first energy storage inductance L2 and the second energy storage inductance L3 are used as supplements of electrical energy to ensure that the alternating magnetic field generating coil L1 is stable and reliable.

Referring to FIG. 4, the switch unit 301 includes a third MOS transistor Q3, a fourth MOS transistor Q4, a fifth resistor R5, a sixth resistor R6, a third diode D5, and a second capacitor C2. The third MOS transistor Q3 is a P-channel field effect transistor, and the fourth MOS transistor Q4 is an N-channel field effect transistor. When the gate of the third MOS transistor Q3 is low, the MOS transistor is turned on, and when the gate of the fourth MOS transistor Q4 is When it is extremely high, the MOS tube is turned on.

The source of the third MOS transistor Q3 is the power supply terminal of the switch unit, which is connected to the power supply module, the negative electrode of the third diode D5 and one end of the second capacitor C2, and is also connected to the third MOS transistor Q3 through the fifth resistor R5 The gate and the drain of the fourth MOS transistor Q4, the drain of the third MOS transistor Q3 is the output terminal of the switching unit, which is connected to the anode of the third diode D5, the other end of the second capacitor C2, the first storage One end of the energy inductance L2 and one end of the first resistor R1, one end of the sixth resistor R6 is the control end of the switching unit, which is connected to the processor module, and the other end of the sixth resistor R6 is connected to the gate of the fourth MOS transistor Q4 , The source of the fourth MOS transistor Q4 is grounded.

Please continue to refer to FIG. 1. The electromagnetic induction heating electronic cigarette of the present invention further includes a human-computer interaction module 60 for receiving user input instructions. The human-computer interaction module 60 is connected to the processor module 40. The human-computer interaction module 60 may use buttons. When the button is pressed for a long time, the electromagnetic induction-heated electronic cigarette enters a standby mode. When the inhalation motion sensing module 20 detects the user's smoking action, the processor module 40 starts to work.

Please refer to FIG. 4 together. The processor module 40 includes a microprocessor U1. The NRST/P30 pin of the microprocessor is connected to the power module through a pull-up resistor. The I2C_SCL/P04 and P22 pins of the microprocessor U1 1. The P23 pin is connected to the suction motion sensing module 20, the OSCOUT/P32 pin of the microprocessor U1 is connected to the human-computer interaction module 60, the P13 pin of the microprocessor U1 is connected to the control end of the switch unit 301, and the SPI_SCK/ of the microprocessor U1 Pin 15 is connected to the power module 10.

Wherein, the microprocessor U1 may use an integrated chip with a model of MCU8051. Of course, the processor module 40 may also use other chips with corresponding functions and their peripheral circuits. The microprocessor U1 has a built-in intelligent algorithm that responds to the operation of input and output interactive modules. The microprocessor U1 is the control core of the multi-mode electronic cigarette, which is responsible for data processing, and activates different working modes of the electronic cigarette atomizer by detecting buttons or other operations (such as the air pressure of the smoking action), and the microprocessor U1 controls the atomization The magnitude of the drive current of the generator is used to control the magnetic field strength of the alternating magnetic field generator module 30 to produce the alternating magnetic field, and the working time of the alternating magnetic field generator module 30; the atomizer unit generates different concentrations of smoke.

When the P13 pin of the microprocessor U1 outputs a high-level signal, the fourth MOS transistor Q4 is turned on, so that the gate of the third MOS transistor Q3 is pulled low to be turned on, and the output of the switching unit at this time The terminal is at a low level, so that the first MOS transistor Q1 and the second MOS transistor Q2 are turned on. At this time, the resonant circuit formed by the first capacitor C1 and the alternating magnetic field generating coil L1 generates an alternating magnetic field, so that it is located in the alternating magnetic field. The magnetic induction heating body in the generating coil L1 generates an induction current (ie, eddy current) and heats up to heat the cigarette and/or cigarette oil in the smoking container and generate smoke.

Further, in the electromagnetic induction-heated electronic cigarette of the present invention, an NTC sensor may be provided in the smoking container to detect the temperature of the magnetic induction heating body in real time and feed it back to the microprocessor, which controls the fourth MOS tube Q4 On and off state.

In an embodiment of the present invention, the alternating magnetic field generating coil L1 can be embedded on the side wall of the smoking container, so that the middle of the alternating magnetic field generating coil L1 can be inserted into the cigarette, and the magnetic induction heating body can also be It is installed in the cigarette, and the cigarette is inserted into the alternating magnetic field generating coil L1, and the cigarette is also heated to generate smoke. The circuit structure of the alternating magnetic field generator module of the present invention and the shape and installation position of the magnetic induction heating body can be long. This kind of equivalent transformation is not illustrated here.

In summary, the present invention uses the alternating magnetic field generator module designed by the ZVS principle (Zero Voltage Switch) to make the eddy current generated by the magnetic induction heating body quickly heat up and heat the tobacco. The tobacco is heated uniformly, and the tobacco emits a stable smell. There is a better user experience, and this method can be applied to various electronic cigarettes, medical equipment and other fields.

At the same time, in the electromagnetic induction heating electronic cigarette of the present invention, the magnetic induction heating body does not need to pass current, so the magnetic induction heating body has a long service life, the characteristics of the magnetic induction heating body are stable, the service life of the electronic smoking set is extended, and the consumer is better satisfied Needs, better meet consumer needs, improve market competitiveness.

It can be understood that, for those of ordinary skill in the art, equivalent replacements or changes can be made according to the technical solutions and inventive concepts of the present invention, and all such changes or replacements should fall within the protection scope of the appended claims of the present invention.

Claims

An electromagnetic induction-heated electronic cigarette includes an inhalation action induction module and a smoking container for inserting cigarettes. The utility model is characterized in that it also includes an alternating magnetic field generator module, a magnetic induction heating body and a processor module. The magnetic induction heating body Set in the smoking container, the inhalation action sensing module detects the user's suction action and feeds it back to the processor module. The processor module controls the alternating magnetic field generator module to generate an alternating magnetic field, causing the magnetic induction heating element to generate heat To heat the cigarettes in the smoking container and produce smoke.
The electromagnetic induction heating electronic cigarette according to claim 1, wherein the alternating magnetic field generator module includes a switching unit and an electromagnetic induction unit, and the power supply end of the switching unit is connected to the power supply of the electromagnetic induction heating electronic cigarette Module, the control end of the switch unit is connected to the processor module, and the output end of the switch unit is connected to the electromagnetic induction unit.
The electromagnetic induction heating electronic cigarette according to claim 2, wherein the electromagnetic induction unit comprises a first MOS tube, a second MOS tube, a first capacitor, a first voltage regulator tube, a second voltage regulator tube, The first diode, the second diode, the alternating magnetic field generating coil, the first energy storage inductor, the second energy storage inductor, the first resistance, the second resistance, the third resistance, and the fourth resistance, the first The gate of the MOS tube is connected to the negative electrode of the first regulator tube and the positive electrode of the second diode, and is connected to the output terminal of the switching unit through the first resistor, and is also connected to the positive electrode of the first regulator tube and the second through the second resistor The anode of the voltage stabilizing tube, the source of the first MOS tube, the drain of the second MOS tube and one end of the third resistor, the drain of the first MOS tube is connected to the negative electrode of the first diode and the first capacitor One end and one end of the alternating magnetic field generating coil are also connected to the output end of the switching unit and one end of the first energy storage inductor through the second energy storage inductor, and the other end of the first energy storage inductor is connected to the other end of the alternating magnetic field generation coil, The other end of the first capacitor, the source of the second MOS tube and the negative electrode of the second diode, the gate of the second MOS tube is connected to the negative electrode of the second regulator tube, the other end of the third resistor and the first The anode of the diode is also connected to the output end of the switch unit and one end of the first energy storage inductor through a fourth resistor, and the magnetic induction heating body is inserted into the alternating magnetic field generating coil.
The electromagnetic induction heating electronic cigarette according to claim 3, wherein the first MOS tube and the second MOS tube have P-channel field effect tubes.
The electromagnetic induction heating electronic cigarette according to claim 3, wherein the switch unit includes a third MOS tube, a fourth MOS tube, a fifth resistor, a sixth resistor, a third diode, and a second capacitor , The source of the third MOS tube is the power supply end of the switch unit, it is connected to the power supply module, the negative electrode of the third diode and one end of the second capacitor, and is also connected to the gate of the third MOS tube and the The drain of the four MOS tubes, the drain of the third MOS tube is the output terminal of the switching unit, which is connected to the anode of the third diode, the other terminal of the second capacitor, one terminal of the first energy storage inductor and the first resistor One end of the sixth resistor is the control end of the switch unit, which is connected to the processor module, the other end of the sixth resistor is connected to the gate of the fourth MOS tube, and the source of the fourth MOS tube is grounded.
The electromagnetic induction heating electronic cigarette according to claim 5, wherein the third MOS tube is a P-channel field effect tube, and the fourth MOS tube is an N-channel field effect tube.
The electromagnetic induction heating electronic cigarette according to claim 5, further comprising a man-machine interaction module for receiving user input instructions, the man-machine interaction module being connected to the processor module.
The electromagnetic induction heating electronic cigarette according to claim 7, wherein the processor module includes a microprocessor, and the I2C_SCL/P04, P22, and P23 pins of the microprocessor are connected to the suction motion sensing module, The OSCOUT/P32 pin of the microprocessor is connected to the human-computer interaction module, the P13 pin of the microprocessor is connected to the control end of the switch unit, and the SPI_SCK/P15 pin of the microprocessor is connected to the power supply module.