WO2020038183A1 - 具有模拟气压传感器的电子烟及其控制方法 - Google Patents

具有模拟气压传感器的电子烟及其控制方法 Download PDF

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Publication number
WO2020038183A1
WO2020038183A1 PCT/CN2019/097968 CN2019097968W WO2020038183A1 WO 2020038183 A1 WO2020038183 A1 WO 2020038183A1 CN 2019097968 W CN2019097968 W CN 2019097968W WO 2020038183 A1 WO2020038183 A1 WO 2020038183A1
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Prior art keywords
pressure sensor
microcontroller
analog
suction
electronic cigarette
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PCT/CN2019/097968
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English (en)
French (fr)
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林光榕
郑贤彬
张夕勇
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深圳市康泓威科技有限公司
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Publication of WO2020038183A1 publication Critical patent/WO2020038183A1/zh

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    • A24F47/008—

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  • the invention relates to the technical field of electronic cigarettes, in particular to an electronic cigarette with an analog air pressure sensor and a control method thereof.
  • the electronic cigarette has the function of heating the cigarette liquid when the user smokes, and the cigarette liquid becomes smoke after being heated, and the smoking user can inhale the smoke with cigarette flavor. Because the smoke liquid is burned through heat and smoke instead of burning, it prevents users from inhaling a large amount of harmful substances generated by the burning of tobacco products, so electronic cigarettes are widely used for smoking.
  • Existing electronic cigarettes are provided with an air pressure sensor in the intake channel to detect the pressure difference between the inside and outside when the user smokes, that is, the magnitude of the suction force, so that the control circuit adjusts the amount of smoke generated according to the magnitude of the suction force.
  • the control circuit adjusts the amount of smoke generated according to the magnitude of the suction force.
  • the object of the present invention is to provide an electronic cigarette with an analog air pressure sensor.
  • the analog air pressure sensor of the electronic cigarette can detect the magnitude of suction and provide a suction switch signal and a suction analog signal.
  • Another object of the present invention is to provide a control method for an electronic cigarette having an analog air pressure sensor.
  • the technical solution of the present invention is the electronic cigarette with an analog pressure sensor, which includes an atomizer and a battery rod.
  • the atomizer includes a cigarette holder, an atomizing tube, a liquid storage device provided in the atomizing tube, a heating device, and Atomizing channel, the heating device is provided with a heating resistor, the battery rod is provided with a battery, a control circuit board and an air intake channel, and the control circuit board is provided with a micro-control switch and a microcontroller Power control module.
  • the battery supplies power to the power adjustment module and the heating resistor in sequence through a micro-control switch.
  • the microcontroller is provided with a control circuit that is connected to the micro-control switch and the power adjustment module respectively.
  • An analog air pressure sensor is provided to be electrically connected to the microcontroller.
  • the analog air pressure sensor detects the magnitude of suction when the user smokes and converts it into a suction switch signal to the microcontroller.
  • the microcontroller turns on or off according to the suction switch signal
  • the analog pressure sensor detects the magnitude of the suction and converts it into a suction analog signal to the microcontroller. Adjusting the power of the heating resistor analog signal thereby adjusting the size of the amount of smoke, the greater the suction force greater output power, the greater the amount of fumes, suction smaller the contrary.
  • the analog pressure sensor includes four pins, wherein a first pin is connected to the positive electrode of the battery, a second pin is grounded, a first filter capacitor is connected between the first pin and the second pin, and a fourth lead is connected.
  • the third pin is connected to the microcontroller and provides a suction switch signal, and the third pin is connected to the microcontroller and provides a suction analog signal.
  • the third pin is also connected to a second filter capacitor and a second filter. The other end of the capacitor is grounded.
  • a resistance value detection module is also electrically connected to the heating resistor and the microcontroller.
  • the resistance value detection module detects the resistance value of the heating resistance and converts the resistance value into a corresponding electrical signal and transmits it to the microcontroller.
  • the microcontroller stops the heating resistor from working by using a micro-control switch.
  • the analog air pressure sensor is provided at the front end of the battery.
  • a battery protection module and a charging module are further connected to the battery and the microcontroller.
  • a display module is further connected to the microcontroller.
  • the microcontroller is provided with a parameter setting unit, and the parameters set in advance by the parameter setting unit include a switch preset value, a minimum suction preset value, a suction gear preset value, and a maximum standby time. default value.
  • Another technical solution of the present invention is a control method for an electronic cigarette with an analog pressure sensor, which includes the following steps:
  • suction switch preset value minimum suction preset value, suction gear preset value, maximum standby time preset value
  • the simulated air pressure sensor detects the suction force when smoking in the intake channel, and converts it into a suction switch signal and transmits it to the microcontroller;
  • the microcontroller judges whether the suction force reaches the preset value of the switch according to the suction switch signal. If it is, it goes to the next step; if not, it returns to the previous step;
  • the analog air pressure sensor detects the suction force when smoking in the intake channel, and converts the suction analog signal to the microcontroller;
  • the microcontroller judges whether the suction reaches the minimum suction preset value according to the suction simulation signal, if it is, it goes to the next step; if not, it returns to the previous step;
  • the microcontroller further analyzes which gear position the suction analog signal is in the preset value of the suction position
  • the microcontroller adjusts the power of the power control module to output the power of the corresponding gear to the heating resistor according to the gear of the suction analog signal;
  • the microcontroller determines whether the standby time exceeds the maximum standby time preset value. If it is, it proceeds to the next step. If not, it returns to step (5).
  • Equipped with an analog air pressure sensor it can detect the magnitude of suction and provide a suction switch signal and a suction simulation signal for the microcontroller. Not only can the amount of smoke during smoking be adjusted according to the suction, but it can also automatically detect whether the suction has reached the switch value for switching on. Or disconnect the micro-control switch, so that when the user smokes and stops smoking for a long time, the electronic cigarette is automatically started and automatically dormant to save power and improve the battery life and service life.
  • FIG. 1 is a cross-sectional view of an electronic cigarette having an analog pressure sensor according to the present invention
  • FIG. 2 is a functional block diagram of a control circuit of the present invention
  • FIG. 3 is a circuit connection structure diagram of the analog air pressure sensor of the present invention.
  • FIG. 4 is a flowchart of a control method for an electronic cigarette having an analog air pressure sensor according to the present invention.
  • an electronic cigarette having an analog pressure sensor includes an atomizer A and a battery rod B.
  • the atomizer A includes a cigarette holder 1, an atomizing tube 2, and a liquid storage device provided in the atomizing tube 2. 3.
  • Heating device and atomizing channel (not shown in the figure).
  • the heating device includes heating resistor 4.
  • the battery rod B is provided with the battery 5, the control circuit board 6 and the air inlet channel 7.
  • the air inlet channel 7 is provided with simulated air pressure.
  • the control circuit board 6 is provided with a micro-control switch, a microcontroller, and a power adjustment module.
  • the battery 5 supplies power to the power adjustment module and the heating resistor in order through the micro-control switch.
  • the battery 5 will also supply power to the analog pressure sensor 8 and some functional modules of the microcontroller (the power supply circuit is not marked in the drawing) so that the user can wake up the electronic cigarette to work through the analog pressure sensor when smoking.
  • the microcontroller is electrically connected to the power adjustment module.
  • An analog air pressure sensor 8 is electrically connected to the microcontroller in the air intake channel 7. The analog air pressure sensor 8 detects the magnitude of the suction when the user smokes and converts it into a suction switch signal for micro control.
  • the suction switch signal includes two signals of high level signal and low level signal.
  • the analog air pressure sensor 8 first detects whether the suction force reaches a preset value of the switch, such as whether it belongs to a high level signal, so that the microcontroller is turned on or off. When the micro-control switch is turned on, the micro-controller turns on or off the micro-control switch according to a suction switch signal.
  • the analog pressure sensor simultaneously detects the magnitude of the suction force and converts it into a suction analog signal to the microcontroller.
  • the suction analog signal can reflect the value of the suction power.
  • the microcontroller adjusts the power of the heating resistor according to the suction analog signal to adjust the amount of smoke. The greater the suction power, the greater the output power and the greater the amount of smoke generated. The smaller the suction power, the other way around.
  • the analog pressure sensor includes four pins, where the first pin 1-VIN is connected to the battery positive BAT +, the second pin 2-GND is grounded, and the first pin 1-VIN and the second pin 2
  • a first filter capacitor C20 is connected between -GND
  • a fourth pin 4-ON is connected to the microcontroller and provides a suction switch signal
  • a third pin 3-R is connected to the microcontroller and provides a suction analog signal
  • the third pin 3-R is simultaneously connected with a second filter capacitor C21, and the other end of the second filter capacitor C21 is grounded.
  • the electronic cigarette of the present invention with an analog pressure sensor is further provided with a resistance value detection module electrically connected to the heating resistor and a microcontroller.
  • the resistance value detection module detects the resistance value of the heating resistance and converts it into a corresponding electrical signal. Passed to the microcontroller, when the electrical signal is greater than the resistance preset value, the microcontroller controls the heating resistor to stop working through the micro-control switch.
  • the electronic cigarette of the present invention has an analog air pressure sensor.
  • the analog air pressure sensor is provided at the front end of the battery so as to quickly sense the suction force of the user when smoking.
  • the electronic cigarette having an analog pressure sensor of the present invention is further provided with a battery protection module and a charging module connected to the battery and the microcontroller, so as to prevent the battery from using excessive current, excessive temperature, Problems such as battery failure or damage caused by high charging voltage.
  • the electronic cigarette of the present invention with an analog air pressure sensor is further provided with a display module and a microcontroller, so that a user can observe the working state of the electronic cigarette.
  • the electronic cigarette of the present invention has an analog pressure sensor.
  • the microcontroller has a parameter setting unit (not shown in the figure).
  • the parameters set by the parameter setting unit include preset values of switches and minimum suction force. Preset value, suction gear preset value and maximum standby time preset value.
  • the method for controlling an electronic cigarette with an analog pressure sensor includes the following steps:
  • suction switch preset value minimum suction preset value, suction gear preset value, maximum standby time preset value
  • the simulated air pressure sensor detects the suction force when smoking in the intake channel, and converts it into a suction switch signal and transmits it to the microcontroller;
  • the microcontroller judges whether the suction force reaches the preset value of the switch according to the suction switch signal. If it is, it goes to the next step; if not, it returns to the previous step;
  • the analog air pressure sensor detects the suction force when smoking in the intake channel, and converts the suction analog signal to the microcontroller;
  • the microcontroller judges whether the suction reaches the minimum suction preset value according to the suction simulation signal, if it is, it goes to the next step; if not, it returns to the previous step;
  • the microcontroller further analyzes which gear position the suction analog signal is in the preset value of the suction position
  • the microcontroller adjusts the power of the power control module to output the power of the corresponding gear to the heating resistor according to the gear of the suction analog signal;
  • the microcontroller determines whether the standby time exceeds the maximum standby time preset value. If it is, it proceeds to the next step. If not, it returns to step (5).

Abstract

本发明涉及具有模拟气压传感器的电子烟及其控制方法，该电子烟设有模拟气压传感器，模拟气压传感器在用户吸烟时检测吸力的大小并转化成吸力开关信号给微控制器，微控制器根据吸力开关信号接通或断开所述微控制开关，模拟气压传感器检测吸力的大小并转化成吸力模拟信号给微控制器，微控制器根据吸力模拟信号调节发热电阻的功率从而调节烟雾量的大小，吸力越大则输出功率越大，产生的烟雾量也越大，吸力越小则反之；其有益效果是，该电子烟具有模拟气压传感器，不仅可以根据吸力调节烟雾量的大小，还可以根据吸力自动启动及休眠电子烟以节省电能，提高电池使用时间和寿命。

Description

具有模拟气压传感器的电子烟及其控制方法 技术领域
本发明涉及一种电子烟具的技术领域，特别涉及一种具有模拟气压传感器的电子烟及其控制方法。
 背景技术
电子烟，其作用是用户吸烟时将烟液进行加热，烟液受热后变成烟雾，吸烟用户得以吸入具有香烟味道的烟雾。由于烟液是通过发热冒烟而不是明火燃烧，避免了用户吸入烟草制品因明火燃烧产生的大量有害物质，故使用电子烟进行吸烟得到广泛使用。
现有的电子烟，在进气通道中设有气压传感器用于检测用户吸烟时内外压差即吸力的大小，以便控制电路根据吸力大小来调节烟雾量产生的大小，其缺点在于，当电子烟用户在吸烟过程中，不能根据吸力大小判断是否需要进入吸烟状态或待机状态，以及是否需要进入休眠状态，以致电子烟电池耗电量大，电池使用时间和使用寿命缩短。
 技术问题
本发明的目的是提供一种具有模拟气压传感器的电子烟，该电子烟的模拟气压传感器可以检测吸力大小并提供吸力开关信号和吸力模拟信号。本发明的另一目的是提供一种具有模拟气压传感器的电子烟的控制方法。
 技术解决方案
本发明的技术解决方案是所述具有模拟气压传感器的电子烟，包括雾化器和电池杆，所述雾化器包括烟嘴、雾化管、雾化管内设有的储液装置、发热装置和雾化通道，所述发热装置内设有发热电阻，所述电池杆内设有电池、控制电路板和进气通道，其特征在于：所述控制电路板上设有微控制开关、微控制器、功率调节模块，所述电池通过微控制开关依次为功率调节模块和发热电阻供电，所述微控制器设有控制电路分别与所述微控制开关、功率调节模块连接，所述进气通道内设有模拟气压传感器与所述微控制器电连接，所述模拟气压传感器在用户吸烟时检测吸力的大小并转化成吸力开关信号给微控制器，微控制器根据吸力开关信号接通或断开所述微控制开关，所述模拟气压传感器检测吸力的大小并转化成吸力模拟信号给微控制器，微控制器根据吸力模拟信号调节发热电阻的功率从而调节烟雾量的大小，吸力越大则输出功率越大，产生的烟雾量也越大，吸力越小则反之。
优选地，所述模拟气压传感器包括四个引脚，其中第一引脚连接电池正极，第二引脚接地，第一引脚与第二引脚之间连接有第一滤波电容，第四引脚连接所述微控制器并为其提供吸力开关信号，所述第三引脚连接所述微控制器并为其提供吸力模拟信号，第三引脚同时连接有第二滤波电容，第二滤波电容另一端接地。
优选地，还设有阻值检测模块与所述发热电阻及微控制器电连接，所述阻值检测模块检测发热电阻的阻值并转换成相应的电信号传给微控制器，当电信号大于所述阻值预设值时，所述微控制器通过微控制开关控制使发热电阻停止工作。
优选地，所述模拟气压传感器设于所述电池的前端。
优选地，还设有电池保护模块、充电模块与所述电池及微控制器连接。
优选地，还设有显示模块与所述微控制器连接。
优选地，所述微控制器内设有参数设定单元，所述参数设定单元预先设定的参数包括开关预设值、最低吸力预设值、吸力档位预设值和最长待机时间预设值。
本发明的另一技术方案是，一种具有模拟气压传感器的电子烟的控制方法，包括以下步骤：
（1）在微控制器里预先设定：吸力开关预设值、最低吸力预设值、吸力档位预设值、最长待机时间预设值；
（2）模拟气压传感器检测进气通道内吸烟时的吸力，并转为吸力开关信号传给微控制器；
（3）微控制器根据吸力开关信号判断吸力是否达到开关预设值，如果是，则进入下一步，如果否，则返回上一步；
（4）接通微控制开关，功率控制模块通电，进入吸烟工作状态；
（5）模拟气压传感器检测进气通道内吸烟时的吸力，并转为吸力模拟信号传给微控制器；
（6）微控制器根据吸力模拟信号判断吸力是否达到最低吸力预设值，如果是，则进入下一步，如果否，则返回上一步；
（7）微控制器进一步分析吸力模拟信号处于吸力档位预设值的第几档档位；
（8）微控制器根据吸力模拟信号的档位，调节功率控制模块输出相应档位的功率给发热电阻；
（9）发热电阻产生相应档位的烟雾量；
（10）一口吸烟结束后无吸力，功率控制模块无输出，等待下一口吸烟，进入待机状态；
（11）微控制器判断待机时间是否超过最长待机时间预设值，如果是，则进入下一步，如果否，则返回步骤（5）；
（12）进入休眠状态，返回步骤（2）。
 有益效果
该具有模拟气压传感器的电子烟
设有模拟气压传感器，可以检测吸力大小并为微控制器提供吸力开关信号与吸力模拟信号，不仅可以根据吸力调节吸烟时烟雾量的大小，也可以根据吸力自动检测吸力是否达到开关值以便接通或断开微控制开关，这样便于用户吸烟及停止吸烟较长时间时，使电子烟自动启动及自动休眠以节省电能，提高电池的使用时间和使用寿命。
 附图说明
图1是本发明具有模拟气压传感器的电子烟的剖视图；
图2是本发明控制电路功能结构框图；
图3是本发明模拟气压传感器的电路连接结构图；
图4是本发明具有模拟气压传感器的电子烟的控制方法流程图。
 本发明的最佳实施方式
本发明下面将结合附图作进一步详述：
如图1所示，本发明具有模拟气压传感器的电子烟，包括雾化器A和电池杆B，雾化器A包括烟嘴1、雾化管2、雾化管2内设有的储液装置3、发热装置和雾化通道(图中未标示)，发热装置包括发热电阻4，电池杆B内设有电池5、控制电路板6和进气通道7，进气通道7内设有模拟气压传感器8。
如图1、图2所示，控制电路板6上设有微控制开关、微控制器、功率调节模块，电池5通过微控制开关依次为功率调节模块和发热电阻供电，电子烟休眠时，电池5还会给模拟气压传感器8和微控制器部分功能模块供电（附图未标示供电电路）以便用户吸烟时通过模拟气压传感器唤醒电子烟进行工作。微控制器与功率调节模块电连接，进气通道7内设有模拟气压传感器8与微控制器电连接，该模拟气压传感器8在用户吸烟时检测吸力的大小并转化成吸力开关信号给微控制器，该吸力开关信号包括高电平信号和低电平信号两种信号，模拟气压传感器8首先检测吸力是否达到开关预设值，比如是否属于高电平信号，以便微控制器接通或断开所述微控制开关，微控制器根据吸力开关信号接通或断开所述微控制开关。所述模拟气压传感器同时检测吸力的大小并转化成吸力模拟信号给微控制器，该吸力模拟信号可反映吸力的大小数值，微控制器根据吸力模拟信号调节发热电阻的功率从而调节烟雾量的大小，吸力越大则输出功率越大，产生的烟雾量也越大，吸力越小则反之。
如图3所示，模拟气压传感器包括四个引脚，其中第一引脚1-VIN连接电池正极BAT+，第二引脚2-GND接地，第一引脚1-VIN与第二引脚2-GND之间连接有第一滤波电容C20，第四引脚4-ON连接微控制器并为其提供吸力开关信号，第三引脚3-R连接微控制器并为其提供吸力模拟信号，第三引脚3-R同时连接有第二滤波电容C21，第二滤波电容C21另一端接地。
如图2所示，本发明具有模拟气压传感器的电子烟，还设有阻值检测模块与发热电阻及微控制器电连接，阻值检测模块检测发热电阻的阻值并转换成相应的电信号传给微控制器，当电信号大于阻值预设值时，微控制器通过微控制开关控制使发热电阻停止工作。
如图2所示，本发明具有模拟气压传感器的电子烟，模拟气压传感器设于电池的前端，以便较快感应到用户吸烟时的吸力。
如图2所示，本发明具有模拟气压传感器的电子烟，还设有电池保护模块、充电模块与所述电池及微控制器连接，这样可以防止电池在使用中电流过大、温度过高、充电电压过高等造成的电池故障或损坏等问题。
如图2所示，本发明具有模拟气压传感器的电子烟，还设有显示模块与微控制器连接，以便用户观察电子烟的工作状态。
如图2所示，本发明具有模拟气压传感器的电子烟，微控制器内设有参数设定单元（图中未示），参数设定单元预先设定的参数包括开关预设值、最低吸力预设值、吸力档位预设值和最长待机时间预设值。
如图4所示，本发明具有模拟气压传感器的电子烟的控制方法，包括以下步骤：
（1）在微控制器里预先设定：吸力开关预设值、最低吸力预设值、吸力档位预设值、最长待机时间预设值；
（2）模拟气压传感器检测进气通道内吸烟时的吸力，并转为吸力开关信号传给微控制器；
（3）微控制器根据吸力开关信号判断吸力是否达到开关预设值，如果是，则进入下一步，如果否，则返回上一步；
（4）接通微控制开关，功率控制模块通电，进入吸烟工作状态；
（5）模拟气压传感器检测进气通道内吸烟时的吸力，并转为吸力模拟信号传给微控制器；
（6）微控制器根据吸力模拟信号判断吸力是否达到最低吸力预设值，如果是，则进入下一步，如果否，则返回上一步；
（7）微控制器进一步分析吸力模拟信号处于吸力档位预设值的第几档档位；
（8）微控制器根据吸力模拟信号的档位，调节功率控制模块输出相应档位的功率给发热电阻；
（9）发热电阻产生相应档位的烟雾量；
（10）一口吸烟结束后无吸力，功率控制模块无输出，等待下一口吸烟，进入待机状态；
（11）微控制器判断待机时间是否超过最长待机时间预设值，如果是，则进入下一步，如果否，则返回步骤（5）；
（12）进入休眠状态，返回步骤（2）。
 工业实用性
以上所描述的仅为本发明的较佳实施例，上述具体实施例不是对本发明的限制。在本发明的技术思想范畴内，可以出现各种变形及修改，凡本领域的普通技术人员根据以上描述所做的润饰、修改或等同替换，均属于本发明所保护的范围。

Claims (7)

  1. 一种具有模拟气压传感器的电子烟，包括雾化器和电池杆，所述雾化器包括烟嘴、雾化管、雾化管内设有的储液装置、发热装置和雾化通道，所述发热装置内设有发热电阻，所述电池杆内设有电池、控制电路板和进气通道，其特征在于：所述控制电路板上设有微控制开关、微控制器、功率调节模块，所述电池通过微控制开关依次为功率调节模块和发热电阻供电，所述微控制器设有控制电路分别与所述微控制开关、功率调节模块连接，所述进气通道内设有模拟气压传感器与所述微控制器电连接，所述模拟气压传感器在用户吸烟时检测吸力的大小并转化成吸力开关信号给微控制器，微控制器根据吸力开关信号接通或断开所述微控制开关，所述模拟气压传感器检测吸力的大小并转化成吸力模拟信号给微控制器，微控制器根据吸力模拟信号调节发热电阻的功率从而调节烟雾量的大小，吸力越大则输出功率越大，产生的烟雾量也越大，吸力越小则反之。
  2. 根据权利要求1所述具有模拟气压传感器的电子烟，其特征在于：所述模拟气压传感器包括四个引脚，其中第一引脚连接电池正极，第二引脚接地，第一引脚与第二引脚之间连接有第一滤波电容，第四引脚连接所述微控制器并为其提供吸力开关信号，所述第三引脚连接所述微控制器并为其提供吸力模拟信号，第三引脚同时连接有第二滤波电容，第二滤波电容另一端接地。
  3. 根据权利要求1所述具有模拟气压传感器的电子烟，其特征在于：还设有阻值检测模块与所述发热电阻及微控制器电连接，所述阻值检测模块检测发热电阻的阻值并转换成相应的电信号传给微控制器，当电信号大于所述阻值预设值时，所述微控制器通过微控制开关控制使发热电阻停止工作。
  4. 根据权利要求1所述具有模拟气压传感器的电子烟，其特征在于：所述模拟气压传感器设于所述电池的前端。
  5. 根据权利要求1所述具有模拟气压传感器的电子烟，其特征在于：还设有电池保护模块、充电模块与所述电池及微控制器连接。
  6. 根据权利要求1所述具有模拟气压传感器的电子烟，其特征在于：还设有显示模块与所述微控制器连接。
  7. 根据权利要求1所述具有模拟气压传感器的电子烟，其特征在于：所述微控制器内设有参数设定单元，所述参数设定单元预先设定的参数包括开关预设值、最低吸力预设值、吸力档位预设值和最长待机时间预设值。
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