WO2021184964A1 - Electronic cigarette of which start-up and power adjustment are controlled by means of touch pressure sensor, and control method therefor - Google Patents

Abstract

An electronic cigarette and a control method therefor. The electronic cigarette comprises a housing (1), an atomization device (2), a battery (3) and a control circuit board (4). A central control unit (40) and a touch pressure sensor (41), a power output unit (42) and a system power supply unit (43) which are electrically connected to the central control unit (40) are provided on the control circuit board (4); the central control unit (40) controls the power output unit (42) to adjust the working power of a heating element (21); the touch pressure sensor (41) is used for detecting touch pressure when a user touches the electronic cigarette and transmitting a detected touch pressure detection value to the central control unit (40), so that the user can control the electronic cigarette to be started or adjust power output by applying different touch pressures to the touch pressure sensor (41).

Description

Electronic cigarette controlled to start and adjust power through touch pressure sensor and control method thereof Technical field

The present invention relates to the technical field of electronic cigarettes, and in particular to an electronic cigarette that is controlled to start and regulate power through a touch pressure sensor and a control method thereof.

Background technique

The function of the electronic cigarette is to heat the e-liquid when the user smokes, and the e-liquid becomes smoke after being heated, so that the smoking user can inhale the smoke with the smell of cigarettes. Since the liquid smoke is smoked through heat instead of burning with an open flame, which prevents users from inhaling a large amount of harmful substances produced by the burning of tobacco products due to the burning of an open flame, the use of electronic cigarettes for smoking is widely used.

Existing electronic cigarettes generally include a casing, an atomizing device, a battery, and a control circuit board. The atomizing device stores smoke liquid and is equipped with a heating element for atomizing the smoke liquid. When heating and atomizing, the inside of the atomizing device The smoke liquid penetrates or conducts to the heating element. The existing e-cigarettes are activated when they are activated, or activated by pressing the button, or when smoking, the microphone automatically senses the airflow to activate the e-cigarette and enter the smoking state. This method cannot effectively prevent children or children from smoking. Adults smoke. In addition, the existing electronic cigarettes cannot simply and automatically adjust the amount of smoke according to the user's wishes when smoking.

technical problem

The purpose of the present invention is to overcome the shortcomings of the above-mentioned technology and provide an electronic cigarette that is activated and adjusted by a touch pressure sensor. The touch pressure sensor of the electronic cigarette can detect the magnitude of the touch pressure of the user's finger on The central control unit controls the start of the electronic cigarette, and controls the power output unit to adjust the output power to the heating element to adjust the amount of smoke. Another object of the present invention is to provide a method for controlling the start and power adjustment of an electronic cigarette through a touch pressure sensor.

Technical solutions

The technical solution of the present invention is to control the start and adjust the power of the electronic cigarette through a touch pressure sensor, including a housing, an atomizing device, a battery and a control circuit board, the atomizing device includes a heating element, and the heating element is used for The smoke liquid is heated and atomized into electronic cigarettes. The control circuit board is provided with a central control unit, and a touch pressure sensor, a power output unit and a system power supply unit electrically connected to the central control unit. The outer surface of the touch pressure sensor Exposed on the surface of the housing, the battery supplies power to the central control unit through the system power supply unit, and supplies power to the heating element through the power output unit, and the central control unit controls the power output unit Adjusting the power of the heating element when it is working, the touch pressure sensor is used to detect the touch pressure when the user touches it and transmit the detected touch pressure detection value to the central control unit. When the electronic cigarette is in In the off state, and the touch pressure detection value reaches the first preset touch pressure value or the number of touches per unit time reaches the preset number of times, the central control unit is triggered to start the electronic cigarette and enter the standby state, or when the electronic cigarette is smoking When the state and the touch pressure detection value reaches the second preset touch pressure value, the central control unit is triggered to send a control signal to the power output unit to enable the power output unit to adjust the power of the heating element.

Preferably, the surface of the housing is further provided with a display unit electrically connected to the central control unit, and the display unit is used to display various working parameters and warning information when the electronic cigarette is working.

Preferably, the control circuit board is further provided with a resistance detection unit electrically connected to the heating element and the central control unit and used to detect the resistance of the heating element, and the resistance detection unit detects the heating element in real time. The detection value of the resistance value is fed back to the central control unit, and the central control unit adjusts the power output of the power output unit according to the detection value of the resistance value to keep stable.

Preferably, the second preset touch pressure value is provided with several different preset values, and the power output unit outputs different powers to the heating element.

Preferably, the central control unit includes a first chip, the first chip is provided with 28 pins, wherein the third pin is connected to the power supply signal terminal VDD, the fourth pin is grounded, and the fifth pin is connected to the power supply. The reset signal terminal NRST, the 8th pin is connected to the first voltage signal terminal R-DET of the heating element, the 9th pin is connected to the second voltage signal terminal I-DET of the heating element, and the 12th pin is connected to the microphone signal terminal MIC. The 14th pin is connected to the resistance measurement enable signal terminal R-DET-EN, the 15th pin is connected to the battery voltage signal terminal BATTERY-VOLTAGE, the 16th pin is connected to the red indicator signal terminal LED-RED, the 17th pin is connected to the battery Voltage detection control signal terminal BATTERY-DIV-SW, the 18th pin is connected to the blue indicator signal terminal LED-BLUE, the 19th pin is connected to the green indicator signal terminal LED-GREEN, and the 20th pin is connected to the first program programming The signal terminal SWDIO, the 21st pin is connected to the second programming signal terminal SWCLK, the 23rd pin is connected to the touch pressure data communication negative signal terminal S-, the 23rd pin is connected to the touch pressure data communication positive signal terminal S+, Pin 28 is connected to the power control signal terminal PWM-EN.

Preferably, the touch pressure sensor includes a second chip, and the second chip is provided with four pins, wherein the first pin is connected to the touch pressure data communication negative signal terminal S-, and the second pin is connected to the touch Pressure data communication positive signal terminal S+, the third pin is grounded, and the fourth pin is connected to the power signal terminal VDD. At the same time, a resistor R _{2 is connected between the first pin and the fourth pin, and the second pin is connected to the fourth pin. A resistor R 8} is connected between the pins, _{a filter capacitor C 4 is} also connected to the fourth pin, and the other end of the filter capacitor C _{4 is grounded.}

Preferably, the power output unit includes a first MOS tube and a second MOS tube, both of which include 8 pins, wherein the first, second, sixth, seventh, and eighth pins are combined into a D pole, and the third pin It is the G pole, the 4th and 5th pins are combined into the S pole, the D pole of the second MOS tube is connected to the output voltage signal terminal PWM-OUT of the heating element, and the D pole of the second MOS tube is also connected to the resistor R ₃ Connect the second voltage signal terminal I-DET of the heating element. The second voltage signal terminal I-DET of the heating element is connected in parallel with the resistor R ₃₃ and the capacitor C _{2 and} then grounded. The D pole of the first MOS tube is connected to the resistor R _{11 and} then connected The first voltage signal terminal R-DET of the heating element, the first voltage signal terminal R-DET of the heating element is connected in parallel with the resistor R ₂₄ and the capacitor C _{1 and} then grounded, the D pole of the first MOS tube and the second MOS tube _{A resistor R 5} is also connected between the D poles _{; a resistor R 7} is connected in series between the G pole and the S pole of the second MOS tube, the G pole and the S pole of the first MOS tube are connected in series with a resistor R ₁ , and the second MOS tube The S pole of the tube is directly connected to the S pole of the first MOS tube and connected to the power supply signal BAT+, the G pole of the second MOS tube is connected to the power control signal terminal PWM-EN, and the G pole of the first MOS tube is connected to the resistance measurement enable signal End R-DET-EN.

Preferably, the control circuit board is further provided with a battery voltage detection unit electrically connected to the central control unit, the battery voltage detection unit includes a resistor R ₁₃ connected to the positive terminal BAT+ of the battery, and the other end of the _{resistor R 13 is simultaneously connected} battery voltage detection signal terminal bATTERY-vOLTAGE, one end of the resistor R and the capacitor C _{20 is} an end _9, the capacitance C of the other end _9, the other end of the resistor R ₂₀ is connected to a battery voltage detection control signal terminal bATTERY-DIV-SW.

Another technical solution of the present invention is a method for controlling the activation and power adjustment of an electronic cigarette through a touch pressure sensor, which includes the following steps:

(1) Parameter initialization, including the initialization of touch pressure sensor parameters, the initialization of startup parameters by the central control unit, and the initialization of output adjustment by the central control unit;

(2) Judge whether the electronic cigarette is on, if yes, go to step (8), if not, go to the next step;

(3) The touch pressure sensor detects whether there is a touch signal, if yes, go to step (5), if not, go to the next step;

(4) Keep the e-cigarette turned off and return to the previous step;

(5) The central control unit reads the touch pressure detection value or the number of touches per unit time;

(6) The central control unit judges whether the touch pressure detection value or the number of touches per unit time has reached the first preset touch pressure value or the preset number of times, if yes, then go to the next step, if not, then return to step (4) );

(7) The electronic cigarette is automatically turned on;

(8) The electronic cigarette enters the smoking state;

(9) The touch pressure sensor detects whether there is a touch signal, if not, go back to the previous step, if yes, go to the next step;

(10) The central control unit reads the touch pressure detection value;

(11) The central control unit judges whether the touch pressure detection value reaches the second preset touch pressure value, if yes, then go to the next step, if not, then return to step (8);

(12) The central control unit controls the power output unit to adjust the output power to the heating element according to a preset method.

Beneficial effect

The user can control the electronic cigarette to start by applying different touch pressures or the number of touches to the touch pressure sensor. This kind of activation by applying different touch pressures or the number of touches requires certain know-how in advance to avoid Children or minors who do not know the know-how use the electronic cigarette of the present invention to smoke. In addition, when smoking, the user applies different touch pressures to the touch pressure sensor, which can also be used to control and adjust the power output to emit different amounts of smoke, so that the amount of smoke can be simply and automatically adjusted according to the user's wishes to satisfy Different needs of users.

Description of the drawings

Figure 1 is a perspective schematic diagram of the electronic cigarette of the present invention;

Figure 2 is a schematic front view of the electronic cigarette of the present invention;

Figure 3 is a block diagram of the functional structure of the electronic cigarette of the present invention;

4 is a circuit connection structure diagram of the first chip of the central control unit of the present invention;

5 is a circuit connection structure diagram of the second chip of the touch pressure sensor of the present invention;

Fig. 6 is a circuit connection structure diagram of the power output unit of the present invention;

Figure 7 is a circuit connection structure diagram of the battery voltage detection unit of the present invention;

Fig. 8 is a flow chart of the control method of the present invention.

The best mode of the present invention

The shutdown state of the electronic cigarette of the present invention means that most of the control circuit is in a dormant state, only the touch pressure sensor is in the detection state and the MCU maintains a minimum judgment state for the touch pressure sensor. The power-on state or the standby state of the electronic cigarette of the present invention means that the control circuit and components of the electronic cigarette are all powered on or in a standby state, and the smoking state of the electronic cigarette of the present invention means that the control circuits are all powered on or are in standby state. Status, and the heating element has been powered on, and the user smokes and emits smoke.

The present invention will be described in further detail below in conjunction with the accompanying drawings:

Example

As shown in Figures 1 and 2, the present invention is an electronic cigarette controlled to start and adjust power through a touch pressure sensor, including a casing 1, an atomizing device 2, a battery 3, and a control circuit board 4. The atomizing device 2 includes a In the heating element 21 that heats and atomizes the e-liquid 6 into electronic cigarette, a touch panel 5 is provided on the surface of the casing 1, and the touch panel 5 is a part of the touch pressure sensor 41.

As shown in FIG. 3, the control circuit board 4 is provided with a central control unit 40, a touch pressure sensor 41, a power output unit 42, and a system power supply unit 43 that are electrically connected to the central control unit 40, and the outer surface of the touch pressure sensor 41 Exposed on the surface of the housing 1, the battery 3 supplies power to the central control unit 40 through the system power supply unit 43, and supplies power to the heating element 21 through the power output unit 42. The central control unit 40 controls the power output unit 42 to adjust the heating element 21 when it is working. Power, the touch pressure sensor 41 is used to detect the magnitude of the touch pressure when the user touches it with the hand and transmit the detected touch pressure detection value to the central control unit 40. When the electronic cigarette of the present invention is in the shutdown state and the touch pressure detection value reaches the first preset touch pressure value or the number of touches per unit time reaches the preset number of times, the central control unit 40 can be triggered to start the electronic cigarette of the present invention Enter the standby state, or when the electronic cigarette of the present invention is in a smoking state and the touch pressure detection value reaches the second preset touch pressure value, the central control unit 40 is triggered to send a control signal to the power output unit 42 to cause the power output unit 42 to generate heat. Element 21 performs power regulation.

As mentioned above, the user controls the electronic cigarette to start by applying different touch pressures or the number of touches to the touch pressure sensor. This kind of activation by applying different touch pressures or the number of touches requires certain know-how in advance. Under normal circumstances, children or minors do not understand the trick, so that children or minors can be prevented from smoking using the electronic cigarette of the present invention. In addition, the second preset touch pressure value can be set with several different preset values, so that the power output unit 42 can output different powers to the heating element 21. For example, the greater the detected touch pressure detection value, the greater the output power to the heating element 21, and the greater the power, the more smoke the atomizing device 2 emits. That is, the greater the touch pressure the user exerts on the touch pressure sensor, the more the amount of smoke sucked out, so that the amount of smoke can be easily and automatically adjusted according to the user's wishes, so as to meet the different needs of users for the amount of smoke.

As shown in Figures 2 and 3, the surface of the housing 1 is also provided with a display unit 44 electrically connected to the central control unit 40, and the display unit 44 is used to display various operating parameters and warning information when the electronic cigarette is working.

As shown in Figure 3, the control circuit board 4 is also provided with a resistance detection unit 45 electrically connected to the heating element 21 and the central control unit 40 and used to detect the resistance of the heating element 21. When the user smokes, the resistance detection unit 45 The resistance value of the heating element detected in real time is fed back to the central control unit 40. The central control unit 40 can also adjust the power output unit 43 according to the resistance value detection value, and the power output unit 43 maintains a stable power output for the heating element 21. During the smoking process of the electronic cigarette, the resistance of the heating element generally changes with temperature changes, and the resistance changes and the power also changes, so the amount of smoke inhaled will change, and the amount of smoke will be unstable. In order to maintain the stability of the amount of smoke during smoking, the central control unit 40 can adjust the power output according to the detection value of the resistance value to ensure that the power output is stable.

As shown in FIG. 4, the central control unit 40 includes a first chip MCU. The first chip MCU has 28 pins. Among them, the third pin is connected to the power supply signal terminal VDD. The voltage of the power supply signal terminal VDD is generally 2.5V. The 4th pin is grounded, the 5th pin is connected to the power-on reset signal terminal NRST, the 8th pin is connected to the first voltage signal terminal R-DET of the heating element, and the 9th pin is connected to the second voltage signal terminal I- of the heating element. DET, the 12th pin is connected to the microphone signal terminal MIC, the 14th pin is connected to the resistance measurement enable signal terminal R-DET-EN, the 15th pin is connected to the battery voltage signal terminal BATTERY-VOLTAGE, the 16th pin is connected to the red indicator Light signal terminal LED-RED, the 17th pin is connected to the battery voltage detection control signal terminal BATTERY-DIV-SW, the 18th pin is connected to the blue indicator signal terminal LED-BLUE, and the 19th pin is connected to the green indicator signal terminal LED -GREEN, the 20th pin is connected to the first programming signal terminal SWDIO, the 21st pin is connected to the second programming signal terminal SWCLK, the 23rd pin is connected to the touch pressure data communication negative signal terminal S-, the 23rd pin The pin is connected to the positive signal terminal S+ of touch pressure data communication, and the 28th pin is connected to the power control signal terminal PWM-EN. Above, the power-on reset signal terminal NRST is used to reset the relevant parameters when the chip is powered on, and the microphone signal terminal MIC is used to receive the switch signal of the inhalation airflow induced by the microphone when smoking, so as to trigger the output power of the power output unit to start smoking, and the heating element The first voltage signal terminal R-DET and the second voltage signal terminal I-DET are used to receive the voltage or resistance signal of the heating element, the touch pressure data communication negative signal terminal S-, the touch pressure data communication positive signal terminal S+ It is used to receive the detection signal of the touch pressure sensor, and the power control signal terminal PWM-EN is used to send a power adjustment signal to the power output unit. Above, the power-on reset signal terminal NRST is used to reset the relevant parameters when the chip is powered on, and the microphone signal terminal MIC is used to receive the switch signal of the inhalation airflow induced by the microphone when smoking, so as to trigger the output power of the power output unit to start smoking, and the heating element The first voltage signal terminal R-DET and the second voltage signal terminal I-DET are used to receive the voltage or resistance signal of the heating element, the touch pressure data communication negative signal terminal S-, the touch pressure data communication positive signal terminal S+ It is used to receive the detection signal of the touch pressure sensor, and the power control signal terminal PWM-EN is used to send a power adjustment signal to the power output unit.

As shown in Figure 5, the touch pressure sensor includes a second chip U ₂ , the second chip U _{2 is} provided with four pins, of which the first pin is connected to the negative signal terminal S- for touch pressure data communication, and the second pin Connect the touch pressure data communication positive signal terminal S+, the third pin is grounded, and the fourth pin is connected to the power signal terminal VDD. At the same time, a resistor R ₂ is connected between the first pin and the fourth pin, and the second pin _{A resistor R 8} is connected to the fourth pin, _{a filter capacitor C 4 is} also connected to the fourth pin, and the other end of the filter capacitor C _{4 is grounded.} The second chip U ₂ transmits the touch pressure detection signal to the first chip MCU through the touch pressure data communication negative signal terminal S- and the touch pressure data communication positive signal terminal S+.

As shown in Figure 6, the power output unit includes a first MOS tube Q ₁ and a second MOS tube Q ₂ , both of which include 8 pins, of which the first, second, sixth, seventh, and eighth pins are combined into D poles. , The third pin is the G pole, the fourth and fifth pins are combined into the S pole, _{the D pole of the second MOS tube Q 2} is connected to the output voltage signal terminal PWM-OUT of the heating element, and the D pole of the _{second MOS tube Q 2} At the same time, the resistor R _{3 is} connected to the second voltage signal terminal I-DET of the heating element. The second voltage signal terminal I-DET of the heating element is connected in parallel with the resistor R ₃₃ and the capacitor C _{2 and} then grounded. The D pole of the first MOS tube is connected The resistor R _{11 is} connected to the first voltage signal terminal R-DET of the heating element, and the first voltage signal terminal R-DET of the heating element is connected in parallel with the resistor R ₂₄ and the capacitor C _{1 and} then grounded. The D pole of the first MOS transistor Q _{1 is connected to the} R ₅ is also connected to a resistor between the second electrode ₂ MOS transistor Q D; a second MOS transistor Q G ₂ and S poles is connected in series between the resistor R _7, a first MOS transistor Q G ₁ and S poles of The resistor R _{1 is} connected in series, the S pole of the second MOS transistor Q ₂ is directly connected to the S pole of the first MOS transistor Q1 and is connected to the battery positive signal BAT+, and _{the G pole of the second MOS transistor Q 2} is connected to the power control signal terminal PWM- EN, the G pole of the first MOS transistor Q ₁ is connected to the resistance measurement enable signal terminal R-DET-EN. The first chip MCU of the central control unit can input the power control signal to the power output unit through the power control signal terminal PWM-EN.

As shown in Figures 3 and 7, the control circuit board 4 is also provided with a battery voltage detection unit 46 electrically connected to the central control unit 40. The battery voltage detection unit 46 includes a resistor R ₁₃ connected to the positive terminal BAT+ of the battery, and a resistor R ₁₃ while the other end is connected to the battery voltage detection signal terminal bATTERY-vOLTAGE, the other end of the resistor R and the capacitor C _{20 is} one end of an end ₉ of the capacitor C ₉ to the other end of resistor R ₂₀ is connected to a battery voltage detection control signal terminal BATTERY- DIV-SW. The battery voltage detection unit 46 is used to detect the battery voltage change. After the electronic cigarette is used for a long time, the battery voltage will decrease. The voltage decrease will cause the battery power output to decrease, resulting in a decrease in the amount of smoke when smoking. The voltage change maintains the stability of the output power.

As shown in FIG. 8, the control method of the present invention for controlling the activation and power adjustment of an electronic cigarette through a touch pressure sensor includes the following steps:

(1) Parameter initialization or initial setting, including the initialization of touch pressure sensor parameters, the initialization of startup parameters by the central control unit MCU, and the initialization of output power adjustment by the central control unit MCU;

(2) Judge whether the electronic cigarette is on, if yes, go to step (8), if not, go to the next step;

(3) The touch pressure sensor detects whether there is a touch signal, if yes, go to step (5), if not, go to the next step;

(4) Keep the e-cigarette turned off and return to the previous step;

(5) The central control unit reads the touch pressure detection value or the number of touches per unit time;

(6) The central control unit judges whether the touch pressure detection value or the number of touches per unit time has reached the first preset touch pressure value or the preset number of times, if yes, then go to the next step, if not, then return to step (4) );

(7) The electronic cigarette is automatically turned on;

(8) The electronic cigarette enters the smoking state;

(9) The touch pressure sensor detects whether there is a touch signal, if not, go back to the previous step, if yes, go to the next step;

(10) The central control unit reads the touch pressure detection value;

(11) The central control unit judges whether the touch pressure detection value reaches the second preset touch pressure value, if yes, then go to the next step, if not, then return to step (8);

(12) The central control unit controls the power output unit to adjust the output power to the heating element according to a preset method.

Industrial applicability

The foregoing descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims (9)

An electronic cigarette controlled to start and adjust power through a touch pressure sensor, comprising a casing, an atomizing device, a battery, and a control circuit board. The atomizing device includes a heating element, and the heating element is used to heat and atomize the smoke liquid into The electronic cigarette is characterized in that: the control circuit board is provided with a central control unit, a touch pressure sensor, a power output unit, and a system power supply unit electrically connected to the central control unit, and the outer surface of the touch pressure sensor is exposed. On the surface of the housing, the battery supplies power to the central control unit through the system power supply unit, and supplies power to the heating element through the power output unit, and the central control unit controls the power output unit to regulate heat generation The power when the component is working, the touch pressure sensor is used to detect the touch pressure when the user touches it and transmit the detected touch pressure detection value to the central control unit, when the electronic cigarette is in the off state , And when the touch pressure detection value reaches the first preset touch pressure value or the number of touches per unit time reaches the preset number of times, the central control unit is triggered to start the electronic cigarette and enter the standby state, or when the electronic cigarette is in a smoking state and When the touch pressure detection value reaches the second preset touch pressure value, the central control unit is triggered to send a control signal to the power output unit so that the power output unit adjusts the power of the heating element. The electronic cigarette controlled to start and adjust power through a touch pressure sensor according to claim 1, wherein the surface of the housing is further provided with a display unit electrically connected to the central control unit, and the display unit is used for displaying Various working parameters and warning messages when the electronic cigarette is working. The electronic cigarette controlled to start and adjust the power through the touch pressure sensor according to claim 1, characterized in that: the control circuit board is also provided with electrical connection with the heating element and the central control unit and used for detecting the resistance of the heating element A resistance value detection unit that feeds back the resistance value detection value of the heating element detected in real time to the central control unit, and the central control unit adjusts the power output unit according to the resistance value detection value The power output remains stable. The electronic cigarette controlled to start and adjust power through a touch pressure sensor according to claim 1, wherein the second preset touch pressure value is provided with a plurality of different preset values, and the power output unit is paired with The heating elements output different powers. The electronic cigarette controlled to start and adjust power through a touch pressure sensor according to claim 1, wherein the central control unit includes a first chip, and the first chip is provided with 28 pins, of which the third The pin is connected to the power supply signal terminal VDD, the 4th pin is grounded, the 5th pin is connected to the power-on reset signal terminal NRST, the 8th pin is connected to the first voltage signal terminal R-DET of the heating element, and the 9th pin is connected to the heating element The second voltage signal terminal I-DET, the 12th pin is connected to the microphone signal terminal MIC, the 14th pin is connected to the resistance measurement enable signal terminal R-DET-EN, the 15th pin is connected to the battery voltage signal terminal BATTERY-VOLTAGE , The 16th pin is connected to the red indicator signal terminal LED-RED, the 17th pin is connected to the battery voltage detection control signal terminal BATTERY-DIV-SW, the 18th pin is connected to the blue indicator signal terminal LED-BLUE, the 19th pin The pin is connected to the green indicator signal terminal LED-GREEN, the 20th pin is connected to the first programming signal terminal SWDIO, the 21st pin is connected to the second programming signal terminal SWCLK, and the 23rd pin is connected to the touch pressure data communication negative The signal terminal S-, the 23rd pin is connected to the touch pressure data communication positive signal terminal S+, and the 28th pin is connected to the power control signal terminal PWM-EN. The electronic cigarette controlled to start and adjust power through a touch pressure sensor according to claim 1, wherein the touch pressure sensor includes a second chip, and the second chip is provided with four pins, wherein the first The pin is connected to the touch pressure data communication negative signal terminal S-, the second pin is connected to the touch pressure data communication positive signal terminal S+, the third pin is grounded, and the fourth pin is connected to the power signal terminal VDD. At the same time, the first pin A resistor R ₂ is connected between pin and pin 4, a resistor R _{8 is connected between pin 2 and pin 4} , a filter capacitor C _{4 is} connected to pin 4 at the same time, and the other end of filter capacitor C 4 is grounded . The electronic cigarette controlled to start and adjust power through a touch pressure sensor according to claim 1, wherein the power output unit includes a first MOS tube and a second MOS tube, both of which include 8 pins, wherein Pins 1, 2, 6, 7, and 8 are combined into D poles, the 3rd pin is G poles, 4 and 5 pins are combined into S poles, and the D pole of the second MOS tube is connected to the output of the heating element Voltage signal terminal PWM-OUT, the D pole of the second MOS tube is also connected to the resistor R _{3 and} then connected to the second voltage signal terminal I-DET of the heating element, and the second voltage signal terminal I-DET of the heating element is connected in parallel with the resistor R ₃₃ and the capacitor C _{2 are} grounded, the D pole of the first MOS tube is connected to the resistor R _{11 and} then connected to the first voltage signal terminal R-DET of the heating element, and the first voltage signal terminal R-DET of the heating element is connected in parallel with the resistor R ₂₄ and the capacitor C _{1 are grounded, a resistor R 5} is also connected between the D pole of the first MOS tube and the D pole of the second MOS tube; a resistor R is connected in series between the G pole and the S pole of the second MOS tube _7. The G pole and S pole of the first MOS tube are connected in series with a resistor R ₁ , the S pole of the second MOS tube is directly connected to the S pole of the first MOS tube and connected to the power supply signal BAT+, and the G pole of the second MOS tube is connected The power control signal terminal PWM-EN, the G pole of the first MOS tube is connected to the resistance measurement enable signal terminal R-DET-EN. The electronic cigarette controlled to start and adjust power through a touch pressure sensor according to claim 1, wherein the control circuit board is further provided with a battery voltage detection unit electrically connected to the central control unit, and the battery voltage detection unit is electrically connected to the central control unit. unit comprising simultaneously connecting the battery voltage detection signal terminal bATTERY-vOLTAGE, the resistor R and one end of the capacitor C _{20 is} an end _9, the capacitance C other end ₉ and the positive terminal BAT + _13, the other end of the resistor R ₁₃ is the resistance R connected to the battery, The other end of the resistor R ₂₀ is connected to the battery voltage detection control signal terminal BATTERY-DIV-SW. A control method for an electronic cigarette controlled to start and adjust power through a touch pressure sensor according to any one of claims 1-8, characterized in that it comprises the following steps: (1) Parameter initialization, including the initialization of touch pressure sensor parameters, the initialization of startup parameters by the central control unit, and the initialization of output adjustment by the central control unit; (2) Judge whether the electronic cigarette is on, if yes, go to step (8), if not, go to the next step; (3) The touch pressure sensor detects whether there is a touch signal, if yes, go to step (5), if not, go to the next step; (4) Keep the e-cigarette turned off and return to the previous step; (5) The central control unit reads the touch pressure detection value or the number of touches per unit time; (6) The central control unit judges whether the touch pressure detection value or the number of touches per unit time has reached the first preset touch pressure value or the preset number of times, if yes, then go to the next step, if not, then return to step (4) ); (7) The electronic cigarette is automatically turned on; (8) The electronic cigarette enters the smoking state; (9) The touch pressure sensor detects whether there is a touch signal, if not, go back to the previous step, if yes, go to the next step; (10) The central control unit reads the touch pressure detection value; (11) The central control unit judges whether the touch pressure detection value reaches the second preset touch pressure value, if yes, then go to the next step, if not, then return to step (8); (12) The central control unit controls the power output unit to adjust the output power to the heating element according to a preset method.