WO2017219360A1

WO2017219360A1 - Method for controlling electronic cigarette

Info

Publication number: WO2017219360A1
Application number: PCT/CN2016/087087
Authority: WO
Inventors: 刘秋明; 向智勇; 牛建华; 韦志林
Original assignee: 惠州市吉瑞科技有限公司深圳分公司
Priority date: 2016-06-24
Filing date: 2016-06-24
Publication date: 2017-12-28
Also published as: CN106102493A; CN106102493B

Abstract

Disclosed is a method for controlling an electronic cigarette, comprising the following steps: S1, when a smoking signal is detected, a battery assembly supplies power to an atomizing assembly so that a heating wire of the atomizing assembly atomizes an e-liquid to generate smoke; S2, during a period of time in which the heating wire continues working, when the cumulative energy consumed by the heating wire reaches preset energy, the battery assembly stops supplying power to the atomizing assembly. The method for controlling an electronic cigarette of the present invention has the following beneficial effects: when the cumulative energy consumed by the heating wire in the present invention reaches the preset energy, the battery assembly stops supplying power to the atomizing assembly, and therefore, it can be ensured that the amount of smoke inhaled per puff by a user during smoking is approximately the same and relatively stable, so that the nicotine inhaled per puff by the user is basically the same, thereby improving the control precision of total particulate matter (TPM) per puff, and avoiding taste degradation due to an excessively small amount of smoke or emesis and nausea due to an excessively large amount of smoke. The present invention can also avoid hazardous substances, such as formaldehyde produced by cotton burning.

Description

Electronic cigarette control method

Technical field

[0001] The present invention relates to the field of electronic cigarettes, and in particular, to an electronic cigarette control method.

Background technique

[0002] The structure of a common electronic cigarette mainly includes a battery assembly and an atomizing assembly. The atomization assembly is provided with an oil storage chamber and an atomization core assembly for atomizing the oil in the oil storage chamber, and the atomization core assembly comprises an atomization sleeve and smoke oil adsorbed in the atomization sleeve. And a heating wire, wherein the tobacco oil contains a predetermined concentration of nicotine, and the heating wire is attached to the oil adsorbing member to atomize the smoke oil adsorbed by the oil adsorbing member. When the smoker's smoking action is detected, the battery component supplies power to the atomizing component, so that the atomizing component is in an activated state; when the atomizing component is turned on, the heating wire is heated, and the smoke oil is evaporated by heat to form a simulated smoke. The aerosol gives the user a feeling of smoking similar to smoking.

[0003] In the prior art, electronic cigarettes work as long as the user smokes. Therefore, the amount of nicotine per inhalation is inconsistent, and the amount of smoke per cigarette (TPM) is unstable, so that after the user smokes the preset amount of smoke, the amount of nicotine absorbed by each predetermined number of cigarettes is different, and the nicotine content is different. Too little will affect the taste, too much nicotine will cause vomiting and nausea.

technical problem

The technical problem to be solved by the present invention is to provide an electronic cigarette control method in view of the above drawbacks of the prior art.

Problem solution

Technical solution

[0005] The technical solution adopted by the present invention to solve the technical problem thereof is: constructing an electronic cigarette control method, including

[0006] Sl, detecting a smoking signal 吋, the battery component supplies power to the atomizing component to atomize the heating wire of the atomizing component, and the smoke oil generates smoke;

[0007] S2. During the period in which the heating wire continues to work, when the accumulated energy consumed by the heating wire reaches a preset energy 吋, the battery component stops supplying power to the atomizing component. [0008] In the electronic cigarette control method of the present invention, the step S1 further includes: detecting the temperature of the heating wire, and controlling the temperature of the heating wire when the temperature of the heating wire reaches the first atomizing temperature 吋Within the preset range.

[0009] In the electronic cigarette control method of the present invention, the step S1 further includes: before the temperature of the heating wire reaches the first atomization temperature, the battery component is given by constant voltage or constant power. Atomization component power supply

[0010] In the electronic cigarette control method of the present invention, the preset range is that the first predetermined temperature value fluctuates up and down with the first atomization temperature as a center.

[0011] In the electronic cigarette control method of the present invention, the first preset temperature value is less than 25 °C.

[0012] In the electronic cigarette control method of the present invention, the preset range is not greater than the first atomization temperature.

[0013] In the electronic cigarette control method of the present invention, the detecting the heating wire temperature comprises: obtaining a voltage value of a voltage detecting point in a circuit loop where the heating wire is located, and acquiring the voltage based on the voltage value The electric resistance of the heating wire is obtained by taking the temperature of the heating wire based on the resistance of the heating wire and the pre-existing resistance temperature relationship of the heating wire, wherein the resistance of the heating wire changes with temperature.

[0014] In the electronic cigarette control method of the present invention, the voltage detection point is a heating wire end.

[0015] In the electronic cigarette control method of the present invention, a voltage dividing module is connected in series in the power supply circuit of the heating wire, and the voltage value of the voltage detecting point in the circuit loop where the heating wire is located includes:

[0016] acquiring a voltage dividing value at both ends of the voltage dividing resistor in the voltage dividing module, and acquiring a voltage value of the end of the heating wire based on a power supply voltage of the power supply circuit and the voltage dividing value.

[0017] In the electronic cigarette control method of the present invention, the electronic cigarette is provided with a microprocessor and a first switch and a second switch electrically connected to the microprocessor and the heating wire. The microprocessor, the first switch and the heating wire are connected to two ends of the power supply circuit to form a first loop, the microprocessor, the second switch, and the a voltage dividing resistor in the voltage module and the heating wire are connected to both ends of the power supply circuit to form a second loop;

[0018] when the microprocessor controls the first switch, the second switch is controlled to be closed to operate the heating wire, and when the microprocessor controls the first The second closing member is controlled to close the first closing member to obtain the voltage value of the end of the heating wire. [0019] In the electronic cigarette control method of the present invention, the detecting the heating wire temperature comprises: detecting the temperature of the heating wire by a temperature sensor.

[0020] In the electronic cigarette control method of the present invention, the temperature sensor is a thermocouple temperature sensor, and the thermocouple temperature sensor is connected to an end of the heating wire.

[0021] In the electronic cigarette control method of the present invention, the calculation of the accumulated energy consumed by the heating wire includes: detecting the actual voltage and the real resistance on the heating wire, and calculating according to the actual voltage and the real resistance The actual power on the heating wire is the accumulated energy consumed by the actual power of the day.

[0022] In the electronic cigarette control method of the present invention, the detecting the actual electrical resistance on the heating wire comprises: [0023] obtaining a voltage value of a voltage detecting point in a circuit loop where the heating wire is located, based on The voltage value obtains the resistance of the heating wire,

[0024] Alternatively,

[0025] detecting an actual temperature of the heating wire, and obtaining an actual resistance of the heating wire based on the actual temperature and a pre-existing resistance temperature relationship table of the heating wire, wherein the resistance of the heating wire changes with temperature Variety.

In the electronic cigarette control method of the present invention, the step S2 further includes: if the smoking room reaches the first preset time, the battery component stops supplying power to the atomizing component.

[0027] In the electronic cigarette control method of the present invention, the first preset time is 3 s.

[0028] In the electronic cigarette control method of the present invention, the atomizing assembly is provided with a smoke oil adsorbing member for adsorbing the smoke oil, and the heating wire is attached to the smoke oil adsorbing member to atomize The smoke oil in the smoke oil adsorbing member, the first atomization temperature is lower than a melting point/flaming point temperature of the smoke oil adsorbing member.

In the electronic cigarette control method of the present invention, the difference between the first atomization temperature and the melting point/flaming point temperature of the smoke adsorbing member is between 10 ° C and 50 ° C.

In the electronic cigarette control method of the present invention, the material of the smoke adsorbing member is cotton, and the difference between the first atomizing temperature and the burning point of the cotton is 10 ° C or more.

[0031] In the electronic cigarette control method of the present invention, the first atomization temperature is greater than 100 °C.

[0032] In the electronic cigarette control method of the present invention, in each smoking process, the preset energy of the first execution step S2吋 is greater than the preset energy of the non-first execution step S2吋, wherein the user smokes two cigarettes each time. The interval between the turns is less than the preset interval, and the two cigarettes belong to the same smoking process.

[0033] In the electronic cigarette control method of the present invention, step S1 further includes: detecting the temperature of the heating wire, The preset energy is set according to the heating wire temperature.

Advantageous effects of the invention

Beneficial effect

[0034] The electronic cigarette control method embodying the present invention has the following beneficial effects: In the present invention, the accumulated energy consumed by the heating wire reaches a preset energy 吋, and the battery assembly stops supplying power to the atomizing component, thereby ensuring that each cigarette smokes. The amount of smoke is substantially the same, and is relatively stable, so that the nicotine to be used by the user is the same, and the precision of controlling the amount of smoke per cigarette is increased to avoid vomiting and nausea due to excessive smog or excessive smog; and further, the present invention It can also avoid burning harmful substances such as formaldehyde. Brief description of the drawing

DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below, and obviously, in the following description The drawings are merely examples of the invention, and those skilled in the art can also obtain other drawings based on the drawings provided without any inventive work.

1 is a flow chart of an electronic cigarette control method of the present invention;

2 is a block diagram showing an internal circuit structure of an electronic cigarette according to the present invention;

3 is a block diagram showing the internal circuit structure of the electronic cigarette provided by the first embodiment;

4 is a schematic diagram of a circuit principle of a specific embodiment corresponding to FIG. 3 according to the present invention;

5 is a block diagram showing an internal circuit structure of an electronic cigarette according to a second embodiment;

6 is a schematic diagram of a microprocessor and its peripheral circuits provided by the second embodiment;

7 is a circuit schematic diagram of detecting a voltage at an end of a heating wire by a partial pressure according to a second embodiment.

Embodiments of the invention

[0043] In order to more clearly understand the technical features, objects and advantages of the present invention, the specific embodiments of the present invention are described in detail with reference to the accompanying drawings.

[0044] The present invention provides an electronic cigarette control method, which solves the technical problem that the amount of smoke per mouth in the prior art is unstable, and realizes that the accumulated energy consumed in the heating wire reaches a preset energy. The battery component stops supplying power to the atomizing component, ensuring that the amount of smoke smoked by each cigarette is substantially the same and relatively stable. The invention makes the nicotine consumption of the user the same, and improves the precision of controlling the amount of smoke per cigarette to avoid Reduced mouthfeel due to too little smoke or vomiting and nausea due to excessive smoke.

[0045] The method of the present invention is described below in connection with a specific electronic cigarette structure. Referring to Figure 1, there is shown a flow chart of the electronic cigarette control method of the present invention. As shown in Fig. 2, the electronic cigarette includes an atomizing assembly for storing and atomizing the smoke oil and a battery assembly for supplying power to the atomizing assembly. The atomizing assembly includes a heating wire 2. The battery pack includes a detection control circuit 1, a power supply circuit 3, and a power supply circuit 3 for supplying power to the detection control circuit 1 and the heating wire 2.

[0046] The electronic cigarette control method of the present invention includes:

[0047] Sl, detecting a smoking signal, the battery assembly supplies power to the atomizing component to cause the atomizing component of the atomizing component to atomize the smoke oil to generate smoke; in the specific embodiment, the detection control circuit 1 detects the smoking signal and controls the power supply circuit. 3 supplies power to the heating wire 2.

[0048] S2. During the period in which the heating wire continues to work, when the accumulated energy consumed by the heating wire reaches a preset energy 吋, the battery component stops supplying power to the atomizing component. In the specific embodiment, the detection control circuit 1 is configured to calculate the accumulated energy consumed by the heating wire, and the accumulated energy consumed by the heating wire reaches a preset energy. The control power supply circuit 3 stops supplying power to the heating wire 2.

[0049] wherein, the calculation of the accumulated energy consumed by the heating wire in step S2 comprises: detecting an actual voltage and an actual 吋 resistance on the heating wire, and calculating an actual enthalpy on the heating wire according to the actual 吋 voltage and the real 吋 resistance Power, using the actual power to obtain the accumulated energy consumed for the daytime integration. Here, detecting the real resistance on the heating wire includes:

[0050] realizing the voltage value of the voltage detection point in the circuit loop where the heating wire is located, obtaining the resistance of the heating wire based on the voltage value; or detecting the actual temperature of the heating wire, based on the actual temperature and The resistance temperature relationship table of the pre-stored heating wire obtains the real resistance of the heating wire, wherein the resistance value of the heating wire changes with temperature.

[0051] Considering that there is energy residue in the continuous smoking of the electronic cigarette, each time the smoking signal is detected, the starting temperature of the heating wire and the surrounding ambient temperature are not constant, but there is a certain increase, especially in the case of After the first smoking, the starting temperature of the heating wire is generally low, and the starting temperature of the heating wire in the subsequent smoking process will be relatively high, so it is preferable to ensure the effect of energy residue as much as possible to ensure each smoke smoke. The amount of the first step is the same as the preset energy of the first step S2吋, and the interval between the two cigarettes per user is less than the preset time.吋, the two cigarettes belong to the same smoking process; that is, each time the user smokes, the battery component in the first cigarette provides more energy to the heating wire than the second mouth. It can be understood that when the distance between the two cigarettes is longer, that is, greater than the preset inter-turn, it is determined that the two cigarettes are not the same smoking process. For example, suppose the default time is 60s, and when the user takes the interval between the Nth and the N+1 cigarettes for more than 60s, the Nth cigarette is different from the N+1 cigarette. The smoking process.

[0052] Further preferably, according to experiments or experience, different preset energy can be set according to different starting temperatures of the heating wire, and a mapping table is established, and each time step S1 is performed, the first detection is performed. The heating wire temperature sets the preset energy in the next step S2 according to the heating wire temperature. In the mapping table, the starting temperature of the heating wire temperature is negatively correlated with the preset energy, that is, the lower the starting temperature of the heating wire temperature, the more preset energy is needed to atomize to obtain the same smoke, the temperature of the heating wire The higher the starting temperature, the less preset energy is needed to atomize the same smoke.

[0053] wherein the atomizing assembly is provided with a smoke adsorbing member for adsorbing the smoke oil, and the heating wire is attached to the smoke adsorbing member to atomize the smoke oil in the smoke adsorbing member. Since the temperature of the atomized smoke oil of the heating wire is in a large interval, if the temperature is too low, the atomization is insufficient, and if the temperature is too high, the cotton is burned to generate harmful substances such as formaldehyde. Therefore, preferably, the step S1 of the present invention further comprises: detecting the heating wire temperature, and controlling the temperature of the heating wire to be within a preset range when the temperature of the heating wire reaches the first atomizing temperature. In the embodiment, the first atomization temperature is 300 ° C, and the first atomization temperature can be set as needed, and the numerical value thereof is not specifically limited herein.

[0054] The preset range may select to fluctuate the first preset temperature value up and down with the first atomization temperature as a center.

For example, the first preset temperature value is less than 25 °C. The preset range may also be selected to be no greater than the first atomization temperature.

[0055] wherein the first atomization temperature is less than a melting point/flaming point temperature of the smoke oil adsorbing member. Generally, the first atomization temperature is greater than 100 °C. Considering that the temperature is higher, it is easier to detect the temperature change, and it is ensured that the cotton is not burned. Preferably, the difference between the first atomization temperature and the melting point/flaming point temperature of the smoke adsorbing member is between 10 ° C and 50. Between °C. If the material of the oil adsorbing member is cotton, the first atomizing temperature is set to be more than 10 ° C from the flash point of the cotton. [0056] In addition, before the temperature of the heating wire reaches the first atomization temperature, the battery component can supply power to the atomizing component in a constant voltage or constant power manner, thereby better ensuring the stability of the amount of smoke. , improved user experience.

[0057] The present invention can provide two specific implementation methods for detecting the temperature of the heating wire as described above.

The first method is to directly detect the temperature by using a temperature detecting circuit, and the second method is to indirectly obtain the real temperature by detecting the actual resistance of the heating wire.

[0058] Considering that the calculation of the energy consumed by the heating filaments in the step S2 also requires the detection of the actual voltage and the real resistance on the heating wire, the second method is preferably employed. Of course, if the first method is used to directly obtain the temperature, the detecting the actual resistance on the heating wire in step S2 can be obtained based on detecting the temperature of the heating wire, specifically: detecting the actual temperature of the heating wire, based on The actual temperature difference between the actual temperature and the pre-existing heating wire is obtained by taking the actual resistance of the heating wire, wherein the resistance of the heating wire changes with temperature.

[0059] Two methods for detecting the temperature of the heating wire are respectively described below through two embodiments.

[0060] The first method for detecting the temperature of the heating wire used in the first embodiment is: detecting the temperature of the heating wire by a temperature sensor.

Referring to FIG. 3, the detection control circuit 1 includes a microprocessor 10 and a temperature detecting sub-circuit 11 connected to the microprocessor 10. The microprocessor 10 is configured to control the power supply circuit 3 to supply or de-energize the heating wire 2; the temperature detecting sub-circuit 11 is configured to obtain the temperature of the heating wire 2 and send it to the microprocessor. 10.

[0062] The temperature detecting sub-circuit 11 may employ a temperature sensor, the temperature sensor is a thermocouple temperature sensor, and the thermocouple temperature sensor is connected to an end of the heating wire 2. As shown in FIG. 4, the thermocouple temperature sensor includes: a first end line 22 and a second end line 23 connected to the end portion 211 of the heating wire 2; wherein the first end line 22 and the second end line 23 are of two types. Wires of different materials (including alloy wire and non-alloy wire), such as copper, iron or constantan. In FIG. 4, the other end portion 212 of the heating wire 2 opposite to the end portion 211 is connected to one end of the electron beam 24 (which may be a conductive material); the other end of the electron beam 24 is connected to the positive electrode of the battery, and the second end line 23 is The other end is connected to the ground for forming a power supply circuit of the heating wire 2; the end of the first end wire 22 and the second end wire 23 remote from the heating wire 2 is connected to the signal amplifier 25 for forming a temperature detecting circuit of the heating wire 2. . On the one hand, after obtaining the smoking signal, the microprocessor 10 of the electronic cigarette controls the hair The power supply circuit of the hot wire 2 is turned on, and the heating wire 2 is energized and heated, and a temperature difference is formed between the first end line 22 (such as nickel-chromium material) and the second end line 23 (such as a constant copper material), according to the thermocouple temperature measurement principle. And outputting an electromotive force signal at a cold end of the high-resistance alloy wire and the low-resistance wire; on the other hand, a signal input end of the signal amplifier 25 is connected to the other end of the first end line 22 and the second end line 23 to obtain an electromotive force signal, And amplifying the same, and further sending the amplified electromotive force signal into the microprocessor 10 of the electronic cigarette for processing to obtain the current temperature value of the heating wire 2.

[0063] After detecting the actual temperature of the heating wire based on the method, on the one hand, the output voltage or the output power of the electronic cigarette can be adjusted according to the actual temperature, and when the actual temperature exceeds the maximum value of the preset range, Decrease the output voltage or output power of the electronic cigarette until the actual temperature is within the preset range; when the actual temperature is below the minimum value of the preset range, the output voltage or output power of the electronic cigarette is increased until the actual temperature is reached. Within the preset range. On the other hand, the actual resistance of the heating wire can be obtained according to the resistance temperature relationship table based on the actual temperature and the pre-stored heating wire, and then based on the actual resistance and the detected actual voltage of the heating wire (this part) The implementation will be explained in detail in the second embodiment), and the cumulative energy consumed by the heating wire is calculated.

[0064] The second embodiment adopts a second method for detecting the temperature of the heating wire: the voltage value of the voltage detection point in the circuit loop where the heating wire is located is obtained, and the heating wire is obtained based on the voltage value. The resistor obtains the temperature of the heating wire based on a resistance relationship between the resistance of the heating wire and a pre-stored heating wire, wherein the resistance of the heating wire changes with temperature.

[0065] Since the resistance of the heating wire is constantly changing during the operation of the heating wire, the resistance of the heating wire is constantly changing. The power calculation formula P=U 2/R shows: the voltage at the end of the heating wire (U) ) rises as the filament resistance (R) rises or decreases as the filament resistance (R) decreases. That is to say, the end voltage (U) of the heating wire can reflect the heating wire resistance (R), so the heating wire resistance (R) can be calculated by realizing the voltage value, and then the resistance temperature relationship table is obtained. The temperature corresponding to the specific heating wire resistance (R) can be determined.

Referring to FIG. 5, in the circuit implementation, the detection control circuit 1 includes: a microprocessor 10 and a voltage detecting sub-circuit 12 connected to the microprocessor 10. The voltage detecting sub-circuit 12 is configured to obtain the voltage value of the voltage detecting point (such as the end of the heating wire) in the circuit loop where it is located, and send it to the microprocessor 10; the microprocessor 10 is also used to The voltage value obtains the resistance of the heating wire, based on the heating wire The resistance temperature and the pre-existing resistance temperature relationship table of the heating wire obtain the temperature of the heating wire.

[0067] Since the voltage of the end of the heating wire obtained by the measurement may be large, it is possible to reduce the voltage measurement difficulty by obtaining a smaller voltage value to reflect a larger voltage at the end of the starting wire. Therefore, a voltage dividing module for dividing the voltage may be connected in series in the power supply circuit of the heating wire, and the voltage value of the voltage detecting point in the circuit loop where the heating wire is located includes: obtaining a point in the voltage dividing module a voltage dividing value across the voltage resistor, and obtaining a voltage value of the end of the heating wire based on a power supply voltage of the power supply circuit and the voltage dividing value.

Referring to FIG. 5, in the voltage detection point being the heating wire end portion, the voltage detecting sub-circuit 12 includes: a second switching member 122 and a voltage dividing module 121. A voltage dividing module 121 and a second switching member 122 are connected in series between the microprocessor 10 and the end of the heating wire 2. The voltage dividing module 121 is configured to convert the voltage value into a readable voltage, so that the microprocessor 10 calculates the resistance of the heating wire 2 based on the readable voltage; wherein the readable voltage is the The voltage that the microprocessor 10 is able to recognize. The second shutoff member 122 is for turning on or off under the control of the microprocessor 10 to control the voltage detecting sub-circuit 12 to detect the voltage value or stop detecting the voltage value. The detection control circuit 1 further includes a first switch member 13 connected to the microprocessor 10; the microprocessor 10 is configured to control the first switch member 13 to be turned on or off. That is, the power supply circuit 3 is controlled to supply power to the heating wire 2 or to stop power supply.

[0069] It can be seen that the microprocessor 10, the first switch member 13 and the heating wire 2 are connected to the two ends of the power supply circuit 3 to form a first loop, and the microprocessor 10 and the second switch member 122, the voltage dividing module 121 and the heating wire 2 are connected to the two ends of the power supply circuit 3 to form a second circuit; when the microprocessor 10 controls the first switching element 13 to start, control the second The closing member 122 is closed to operate the heating wire 2, and when the microprocessor 10 controls the second closing member 122 to open, the first closing member 13 is controlled to be closed to obtain The voltage value at the end of the heating wire 2 is described.

[0070] In a specific implementation process, the first soffing member 13 and the second soffing member 122 are both N-channel field effect transistors; the drain of the first soffing member 13 and the heating wire 2, the source of the first switch 13 is grounded, and the microprocessor 10 is connected to the gate of the first switch 13 for controlling the first switch 13 to be turned on or Breaking, to control the power supply circuit 3 to supply power to the heating wire 2 or to stop power supply; the voltage dividing module 121 includes a first resistor, a second resistor, and a first capacitor, one end of the first resistor and the The heating wire 2 is connected, the other end of the first resistor is connected to the second resistor, the first capacitor and the microprocessor, and the second resistor is connected to the other end of the first capacitor and grounded ; The second The drain of the gate 122 is connected to the heating wire 2 and the first resistor, the source of the second gate 122 is grounded, and the microprocessor 10 and the second gate 122 are A gate connection is configured to control the second switch member 122 to be turned on or off to control the voltage dividing module 121 to acquire and convert the voltage value into a readable voltage or stop acquiring the voltage value.

[0071] Taking a specific internal circuit of an electronic cigarette as an example, please refer to FIG. 6 and FIG. 7. The microprocessor 10 in FIG. 5 corresponds to the single chip STM32F030K6 in FIG. 6, the heating wire 2 in FIG. The closing member 13 and the second closing member 122 correspond to the heating wire L, the field effect tube and the Q2 in Fig. 7, respectively; the letters on the terminals in Fig. 6 and Fig. 7 indicate the transmitted signal identification, marked with the same signal identification. A plurality of terminals are in a connection relationship. In addition, other specific circuit diagrams in this embodiment also follow this rule. Referring to Fig. 6 and Fig. 7, the heating wire L (generally about 0.3 ohms) of 0+ is connected to the battery positive electrode B+, and the 0-terminal of the heating wire L is connected to the drain of the field effect transistor Q1, and the source of the field effect transistor Q1. Grounding, the PB0 end of the No. 14 pin of the STM32F030K6 is connected to the gate of the FET Q1, and is used to transmit the PWM wave signal labeled DRIV to control the Q1 to be turned on or off, thereby controlling the power supply loop of the heating wire L to be turned on. Or broken.

[0072] Further, the first resistor, the second resistor and the first capacitor of the voltage dividing module 121 in FIG. 5 correspond to the resistor R38, the resistor R39 and the capacitor C22 in FIG. 7, respectively. One end of the resistor R38 is connected to the 0-end of the heating wire L, and the other end of the resistor R38 is connected to the resistor R39, the capacitor C22, and the No. 8 pin PA2 of the single chip STM32F030K6, and the other end of the resistor R39 and the capacitor C22 are connected and grounded. The drain of the FET Q2 is connected to the 0-end of the heating wire L and the resistor R38, and the source of the FET Q2 is grounded. The PB1 end of the pin 15 of the STM32F030K6 is connected to the gate of the FET Q2, The control field effect transistor Q2 is turned on or off, to control the voltage dividing module composed of the resistors R38, R39 and the capacitor C22 to obtain the voltage value of the 0-end of the heating wire, and convert the voltage value into the readable voltage of the single chip STM32F030K6 or stop. Obtain the voltage value. This is because the voltage value that can be recognized according to the type of the microprocessor may be limited. For example, in the specific implementation circuit shown in FIG. 6 and FIG. 7, the single chip STM32F030K6 can read the voltage value lower than 3V, but the electronic cigarette The supply voltage of the battery to the heating wire L is usually about 4.2V, that is, in the case of normal battery power, the 0-terminal voltage value of the heating wire L is 3V or more. In this solution, the voltage dividing module is set to make the micro The processor can read a voltage value lower than 3V through the voltage dividing module, and indirectly read the voltage value of the 0-end of the heating wire through the lower voltage value.

[0073] It should be noted that the drain of the field effect transistor Q1 is directly connected to the 0-end of the heating wire L, and the field effect transistor Q2 The drain is connected to the 0-end of the heating wire L through a resistor R41 having a certain resistance value (for example, 3 ohms). When Q1 and Q2 are simultaneously turned on, the current output from the 0- terminal of the heating wire L is directly Flowing from Q1 to ground, this 吋Q 2 branch does not work. Therefore, in this scheme, the control logic for Q1 and Q2 is: When the single-chip microcomputer ST M32F030K6 controls the FET Q1幵, the control FET Q2 is turned off to make the heating wire L work; when the single chip STM32F030K6 controls the field effect When the tube Q2 is turned on, the control field effect transistor Q1 is turned off to obtain the voltage value of the end portion of the heating wire L.

[0074] In summary, the electronic cigarette control method embodying the present invention has the following beneficial effects: In the present invention, the accumulated energy consumed by the heating wire reaches a preset energy 吋, and the battery assembly stops supplying power to the atomizing component, thereby ensuring that each The amount of smoke smoked by the cigarette smoke is about the same, and is relatively stable, so that the user can use the same amount of nicotine to increase the accuracy of controlling the amount of smoke per cigarette, so as to avoid the odor caused by excessive smoke or vomiting due to excessive smoke; Further, the present invention can also avoid the generation of harmful substances such as formaldehyde by burning cotton.

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. The specific embodiments described above are merely illustrative and not restrictive. The skilled person is able to make various forms within the scope of the present invention without departing from the spirit and scope of the invention as claimed.

Claims

Claim

An electronic cigarette control method, comprising the steps of:

51. After detecting the smoking signal, the battery component supplies power to the atomizing component to cause the atomizing component of the atomizing component to atomize the smoke oil to generate smoke;

52. During the period of continuous operation of the heating wire, when the accumulated energy consumed by the heating wire reaches a preset energy 吋, the battery component stops supplying power to the atomizing component.

The electronic cigarette control method according to claim 1, wherein the step S1 further comprises: detecting the temperature of the heating wire, and controlling the temperature of the heating wire when the temperature of the heating wire reaches the first atomizing temperature 吋It is within the preset range.

The electronic cigarette control method according to claim 2, wherein the step S1 further comprises: before the temperature of the heating wire reaches the first atomizing temperature, the battery component is in a constant voltage or constant power manner. Power the atomizing assembly.

The electronic cigarette control method according to claim 2 or 3, wherein the preset range is a first preset temperature value that fluctuates up and down with the first atomization temperature as a center.

The electronic cigarette control method according to claim 4, wherein the first preset temperature value is less than 25 °C.

The electronic cigarette control method according to claim 2 or 3, wherein the preset range is not greater than the first atomization temperature.

The electronic cigarette control method according to claim 2 or 3, wherein the detecting the temperature of the heating wire comprises: calculating a voltage value of a voltage detecting point in a circuit loop where the heating wire is located, based on the voltage The value obtains the electric resistance of the heating wire, and the temperature of the heating wire is obtained based on the resistance of the heating wire and the resistance temperature relationship table of the pre-existing heating wire, wherein the resistance value of the heating wire changes with temperature.

The electronic cigarette control method according to claim 7, wherein the voltage detecting point is a heating wire end.

The electronic cigarette control method according to claim 8, wherein a voltage dividing module is connected in series in the power supply circuit of the heating wire, and the voltage value of the voltage detecting point in the circuit loop in which the heating wire is located includes: Obtaining a voltage dividing value at both ends of the voltage dividing resistor in the voltage dividing module, and acquiring a voltage value of the end of the heating wire based on a power supply voltage of the power supply circuit and the partial voltage value.

The electronic cigarette control method according to claim 9, wherein the electronic cigarette is provided with a microprocessor and a first switch member and a second switch electrically connected to the microprocessor and the heating wire. a first circuit, wherein the microprocessor, the first switch and the heating wire are connected to two ends of the power supply circuit, the microprocessor, the second switch, the a voltage dividing resistor in the voltage dividing module and the heating wire are connected to both ends of the power supply circuit to form a second loop;

When the microprocessor controls the first switch, the second switch is controlled to be closed to operate the heating wire, and when the microprocessor controls the second switch And the electronic cigarette control method according to claim 2 or 3, wherein the first control device is closed to obtain the voltage value of the end of the heating wire, and the electronic cigarette control method according to claim 2 or 3, wherein Detecting the temperature of the heating wire includes: detecting the temperature of the heating wire by a temperature sensor. The electronic cigarette control method according to claim 1, wherein the calculation of the accumulated energy consumed by the heating wire comprises: detecting an actual voltage and an actual electrical resistance on the heating wire, according to the actual voltage and the actual voltage The resistance is calculated to obtain the actual power on the heating wire, and the accumulated energy is obtained by integrating the real power with the turn-to-turn.

The electronic cigarette control method according to claim 12, wherein the detecting the actual electrical resistance on the heating wire comprises:

Obtaining a voltage value of a voltage detection point in a circuit loop where the heating wire is located, and obtaining a resistance of the heating wire based on the voltage value,

Or,

The actual temperature of the heating wire is detected, and the actual resistance of the heating wire is obtained based on the actual temperature and the pre-existing resistance temperature relationship table of the heating wire, wherein the resistance of the heating wire changes with temperature.

The electronic cigarette control method according to claim 1, wherein the step S2 further comprises: if the smoking room reaches the first predetermined time, the battery component stops supplying the atomizing component Electricity.

[Claim 15] The electronic cigarette control method according to claim 14, wherein the first preset time is 3s.

[Claim 16] The electronic cigarette control method according to claim 1, wherein the atomizing assembly is provided with a smoke adsorbing member for adsorbing smoke oil, the heating wire and the smoke adsorbing member Abutting to atomize the smoke oil in the smoke oil adsorbing member, the first atomization temperature is lower than a melting point/flaming point temperature of the smoke oil adsorbing member.

[Claim 17] The electronic cigarette control method according to claim 16, wherein a difference between the first atomization temperature and a melting point/flaming point temperature of the smoke adsorbing member is 10 ° C to 50 ° Between C.

[Embodiment 18] The electronic cigarette control method according to claim 16, wherein the first atomization temperature is greater than 100 °C.

[Claim 19] The electronic cigarette control method according to claim 1, wherein, in each smoking process, the preset energy of step S2 is performed for the first time is greater than the preset energy of the non-first execution step S2, wherein The interval between the two cigarettes per user is less than the preset interval, and the two cigarettes belong to the same smoking process.

[Claim 20] The electronic cigarette control method according to claim 1, wherein the step S1 further includes