WO2015089711A1 - 电子烟控制电路、电子烟以及电子烟的控制方法 - Google Patents

电子烟控制电路、电子烟以及电子烟的控制方法 Download PDF

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Publication number
WO2015089711A1
WO2015089711A1 PCT/CN2013/089566 CN2013089566W WO2015089711A1 WO 2015089711 A1 WO2015089711 A1 WO 2015089711A1 CN 2013089566 W CN2013089566 W CN 2013089566W WO 2015089711 A1 WO2015089711 A1 WO 2015089711A1
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Prior art keywords
comparison
signal
unit
control
electronic cigarette
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PCT/CN2013/089566
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English (en)
French (fr)
Inventor
刘秋明
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吉瑞高新科技股份有限公司
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Application filed by 吉瑞高新科技股份有限公司 filed Critical 吉瑞高新科技股份有限公司
Priority to CN201380081694.XA priority Critical patent/CN105899093B/zh
Priority to PCT/CN2013/089566 priority patent/WO2015089711A1/zh
Priority to EP13899665.7A priority patent/EP3085256A4/en
Publication of WO2015089711A1 publication Critical patent/WO2015089711A1/zh

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/30—Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors

Definitions

  • the invention relates to the field of daily electronic products, in particular to a control circuit, an electronic cigarette and a control method of the electronic cigarette.
  • the electronic cigarette is composed of an atomizer and a battery rod.
  • the atomizer is provided with an oil storage member storing the smoke oil and a heating element for heating the smoke oil.
  • the battery rod has an air pressure drive switch and a power supply module.
  • the air pressure drive switch senses the pressure created by the air flow, triggering the power supply module to supply power to the heating element, which heats the smoke to form a smoke.
  • the amount of the atomizer smoke and the taste are the same regardless of the size of the smoking force when the user smokes. Therefore, the user cannot fully experience the change in the amount of smoke when the cigarette is smoked and re-extracted, and the taste is single, and it cannot be automatically seasoned according to the smoking habit of the smoker, and thus cannot satisfy the need.
  • the technical problem to be solved by the present invention is to provide an improved control circuit, electronic cigarette and electronic cigarette control method for the defects in the prior art that the user cannot fully experience the change of the smoke taste with the smoking intensity when the real smoke is smoked.
  • a control circuit for controlling an electronic cigarette comprising at least one air flow sensor, a control module, at least two switch units, and a heating element correspondingly connected to each of the switch units, the at least two switch units and the at least An air flow sensor is respectively connected to the control module;
  • the airflow sensor is configured to collect an airflow signal that is inhaled into the electronic cigarette each time and send the airflow signal to the control module, where the control module is configured to perform each of the airflow signals with a preset value. Comparing, and selecting, according to the comparison result, transmitting a turn-on signal to at least one of the at least two switch units, the switch unit being configured to be turned on after receiving the turn-on signal to heat the corresponding heating element
  • the heating element is configured to heat the smoke oil in the corresponding oil storage member to atomize it.
  • control circuit further includes a power supply module, wherein the power supply module is respectively connected to the control module and each of the switch units, and the power supply module is used for the control module, each of the switch units, and Each of the heating elements provides a power supply.
  • power supply module is respectively connected to the control module and each of the switch units, and the power supply module is used for the control module, each of the switch units, and Each of the heating elements provides a power supply.
  • control module is a microprocessor
  • the microprocessor includes a storage unit, a comparison unit, and a control unit
  • the comparison unit is respectively connected to the airflow sensor and the control unit, and the control unit respectively
  • the at least two switch units are connected, and the storage unit is connected to the comparison unit;
  • the storage unit is configured to store the at least two preset values
  • the comparing unit is configured to compare a peak value of the airflow signal with each of the preset values, and select the at least two preset values. And a maximum preset value that is smaller than the peak value, and sends a comparison result signal to the control unit according to the maximum preset value, and the control unit selects to send the conduction signal to the at least according to the comparison result signal.
  • the microprocessor further includes a timing unit, the timing unit is connected to the control unit, and the control unit sends a trigger signal to the timing unit while transmitting the conduction signal, the timing unit After receiving the trigger signal, timing is started, and after the predetermined time is counted, a feedback signal is sent to the control unit, and the control unit sends a shutdown signal to the switch unit in the on state according to the feedback signal, which is in a conducting state.
  • the switching unit receives the closing signal and closes so that the corresponding heating element stops heating.
  • the control module includes at least two comparison control circuits, wherein the input ends of each of the comparison control circuits are respectively connected to the air flow sensor, and the output ends of each of the comparison control circuits are respectively connected with a switch a unit, the at least two comparison control circuits are configured to sequentially increase the preset value, and the airflow signal triggers a comparison control circuit whose preset value is smaller than the airflow signal;
  • each of the comparison control circuits includes a first comparison circuit and a second comparison circuit, a comparison voltage input end of the first comparison circuit is connected to the air flow sensor, and a reference voltage terminal of the first comparison circuit is The preset value is used as a reference voltage, and the reference of the second comparison circuit corresponding to the output of the first comparison circuit having a larger preset value in the adjacent two comparison control circuits and the first comparison circuit having the smaller preset value a voltage terminal is connected; a comparison voltage input end of the second comparison circuit is connected to an output end of the first comparison circuit; and the first comparison circuit is configured to perform the air flow signal separately from each of the preset values Comparing, the output end of the first comparison circuit whose preset value is smaller than the air flow signal outputs a second voltage to the comparison voltage input end of the second comparison circuit.
  • control module further includes at least two delay units, wherein the at least two delay units are respectively connected in one-to-one correspondence between the switch unit and the second comparison circuit, the delay unit And after receiving the ON signal output by the second comparison circuit, providing a conduction signal to the switching unit for a predetermined predetermined time, so that the switching unit is turned on for a predetermined time.
  • control circuit further includes an amplifying unit for amplifying the airflow signal, the amplifying unit being coupled between the airflow sensor and the control module.
  • the switching unit is a MOS tube.
  • the present invention also provides an electronic cigarette comprising the control circuit described above.
  • the electronic cigarette comprises at least two oil storage members for storing different smoke oils, and each of the heating elements is disposed in the oil storage member in one-to-one correspondence.
  • the electronic cigarette comprises at least two atomizers, and the at least two oil reservoirs are respectively disposed in the at least two atomizers.
  • the electronic cigarette comprises an atomizer, and the at least two oil storage members are each disposed in the one atomizer.
  • the electronic cigarette includes at least two air flow sensors, each of the air flow sensors is correspondingly provided with a different working pressure segment, and when the air flow signal located in the working pressure segment is detected, the air flow signal is sent to the Control module.
  • the invention also provides a method for controlling an electronic cigarette, comprising the following steps:
  • the airflow sensor collects the airflow signal in each of the inhaled electronic cigarettes and sends the airflow signal to the control module;
  • the control module compares the airflow signal with a preset value, and selects a transmit conduction signal to at least one of the at least two switch units according to the comparison result, and the switch unit that receives the turn-on signal Conducted to cause the corresponding heating element to heat.
  • step S2 further comprises the following steps:
  • control module is a microprocessor, and at least two preset values are set and stored in a storage unit of the microprocessor;
  • the comparing unit of the microprocessor compares the peak value of the airflow signal with each of the preset values, and selects a maximum preset value of the at least two preset values that is less than the peak value. And sending a comparison result signal to the control unit of the microprocessor according to the maximum preset value;
  • the control unit selectively transmits a conduction signal to one of the at least two switching units according to the comparison result signal, and the switching unit that receives the conduction signal is turned on to heat the corresponding heating element.
  • the control unit sends a trigger signal to the microprocessor while selecting a transmit conduction signal to one of the at least two switch units according to the comparison result signal.
  • a timing unit the timing unit starts timing when receiving the trigger signal, and sends a feedback signal to the control unit after timing the preset time, the control unit sends a shutdown signal to the guide according to the feedback signal A switching unit in the on state, the switching unit being turned off to stop heating of the heating element.
  • step S2 further comprises the following steps:
  • Each of the comparison control circuits of the control module sequentially increases the preset value, and the airflow signal triggers a comparison control circuit whose preset value is smaller than the airflow signal;
  • the comparison control circuit When the comparison control circuit is triggered, the output end of the comparison control circuit outputs the conduction signal to the corresponding switch unit;
  • step S2 the comparison control circuit first sends the conduction signal to the delay unit, and after receiving the conduction signal, the delay unit continuously supplies the guide to the corresponding switch unit within a predetermined time. Pass signal.
  • control circuit, the electronic cigarette and the electronic cigarette control method provided by the invention have the following beneficial effects:
  • the control module provided by the invention controls the corresponding one or more switch units to be turned on according to the air flow signal collected by the air flow pressure sensor, so that the switch
  • the heating element corresponding to the unit heats the smoke oil in different oil storage parts to achieve the purpose of changing the smoke taste and the amount of smoke, and has the beneficial effect of improving the user experience; in addition, smokers with different smoking and smoking tastes can share
  • An electronic cigarette is more convenient in an environment where it is inconvenient to carry more items such as traveling, and it is particularly convenient for families with multiple people smoking.
  • FIG. 1 is a schematic block diagram of a control circuit in an embodiment of the present invention.
  • FIG. 2 is a schematic block diagram of a control module in the first embodiment of the present invention.
  • FIG. 3 is a schematic block diagram of a control circuit in a second embodiment of the present invention.
  • FIG. 4 is a circuit schematic diagram of a control circuit in a second embodiment of the present invention.
  • FIG. 5 is a flow chart showing a method of controlling an electronic cigarette according to an embodiment of the present invention.
  • Fig. 6 is a block diagram showing a specific flow of step S2 of the electronic cigarette control method in an embodiment of the present invention.
  • the innovation of the present invention is that the airflow signal that is actually redrawn and gently pumped by the user can be compared with the preset value, and the corresponding opening is performed.
  • the switch unit connected to different heating elements controls the corresponding heating element of the switch unit to heat the smoke oil in different oil storage parts to achieve the purpose of changing the smoke taste and the amount of smoke.
  • a control circuit for controlling an electronic cigarette includes at least one air flow sensor 10, a control module 20, at least two heating elements 30, at least two switching units 40, and a power supply module 50.
  • the control end of the at least two switch units 40, the air flow sensor 10, and the power supply module 50 are respectively connected to the control module 20.
  • Each of the switch units 40 is connected between each of the heating elements 30 and the power supply module 50 in a one-to-one correspondence.
  • the airflow sensor 10 is configured to collect the airflow signal in each of the inhaled electronic cigarettes and send the airflow signal to the control module 20.
  • the control module 20 is configured to compare each airflow signal with a preset value, and select a transmission guide according to the comparison result.
  • the pass signal is sent to one of the at least two switch units 40 for turning on after receiving the turn-on signal to heat the corresponding heating element 30, and the heating element 30 is for heating the corresponding oil storage member
  • the smoke oil is used to atomize it.
  • the number of the switching unit and the heating element is three.
  • the number of air flow sensors is one.
  • the switch unit 40 can be selected from a common switch circuit.
  • the plurality of switch units 40 in the switch unit 40 can be turned on at the same time, or all of the switch units can be turned on at the same time, so as to achieve the purpose of automatically calling out multiple tastes and changing the amount of smoke.
  • the resistance values in the heating element 30 may be the same or different, and are set as needed, which is not limited herein.
  • the resistance values between the heating elements 30 are different and correspond to different oil storage members.
  • the control circuit controls the electronic cigarette so that the user can control the heating of the heating element 30 in the corresponding oil storage member by adjusting the intensity of each smoking to achieve the corresponding adjustment of the taste of the smoking, and the amount of the smoke can also be automatically adjusted according to the smoking intensity.
  • smokers with different smoking and smoking tastes can share an e-cigarette, which is more convenient in an environment where it is difficult to carry more items such as traveling, especially for families with multiple people smoking. Great convenience .
  • the control module 20 employs a microprocessor.
  • the microprocessor includes an analog to digital conversion unit 21, a storage unit 22, a comparison unit 23, and a control unit 24.
  • the comparison unit 23 is connected to the air flow sensor 10 and the control unit 24, respectively.
  • the control unit 24 is connected to at least two switching units 40, the storage unit 22 is connected to the comparison unit 23, and the analog-to-digital conversion unit 21 is connected to the comparison unit 23.
  • the analog-to-digital conversion unit 21 is configured to convert an analog signal into a digital signal
  • the storage unit 22 is configured to store at least two preset values set in advance
  • the comparison unit 23 is configured to convert the peak value of the airflow signal after conversion into a digital signal
  • the preset value is compared, and a maximum preset value of at least two preset values smaller than a peak value of the airflow signal is selected, and a comparison result signal is sent to the control unit 24 according to the maximum preset value, and the control unit 24 compares the result according to the comparison.
  • the signal selection sends a conduction signal to one of the at least two switching units 40.
  • the microprocessor can further include a timing unit 25, which is connected to the control unit 24, and the control unit 24 sends a trigger signal to the timing unit 25 while transmitting the on signal to the switch unit 40.
  • the timing unit 25 starts timing after receiving the trigger signal, and sends a feedback signal to the control unit 24 after the predetermined time is counted, and the control unit 24 sends a shutdown signal to the switch unit 40 in the on state according to the feedback signal, which is in conduction.
  • the switch unit 40 of the state is turned off after receiving the off signal so that the corresponding heating element 30 stops heating.
  • the timing unit 25 controls the conduction time of the corresponding switch unit 40 each time of smoking by setting a predetermined time, thereby more precisely controlling the amount of smoke per smoking. Moreover, automatically turning off the switch unit 24 after a predetermined time period can also save smoke oil and electric energy to avoid unnecessary waste.
  • the comparison unit 23 receives another airflow signal within the predetermined time, and generates a comparison result signal to be transmitted to the control unit 24, that is, the interval between the two received airflow signals is smaller than the schedule set in the timing unit 25.
  • the control unit 24 sends a trigger signal to the timing unit 25, which is cleared after receiving the trigger signal, and restarts the timing, and is timing. After a predetermined time, a feedback signal is sent to the control unit 24. After receiving the feedback signal, the control unit 24 sends a shutdown signal to the switch unit 40 in the on state to turn it off.
  • the control unit 24 sends a shutdown signal to the switching unit 40 in the on state to turn it off, and simultaneously sends a conduction signal to the subsequent reception.
  • the comparison result signal corresponding to the switching unit 40 is turned on. And also sends a trigger signal to the timing unit 25, the timing unit 25 clears and restarts the timing, sends a feedback signal to the control unit 24 after a predetermined time, and the control unit 24 sends a shutdown signal to the switch unit 40 in the on state. Make it off.
  • the control module 20 may include at least two comparison control circuits 20a.
  • the input ends of each comparison control circuit 20a are respectively connected to the air flow sensor 10, and the output ends of each comparison control circuit 20a are respectively connected to a switch unit 40.
  • the at least two preset values are respectively set in the at least two comparison control circuits 20a, and the at least two preset values are sequentially increased.
  • the air flow signal triggers the comparison control circuit 20a whose preset value is smaller than the air flow signal.
  • the output of the comparison control circuit 20a outputs an on signal to the control terminal of the switching unit 40.
  • each comparison control circuit 20a includes a first comparison circuit U2 and a second comparison circuit U3.
  • the first comparison circuit U2 and the second comparison circuit U3 each include a comparison voltage input terminal, a reference voltage terminal, and an output terminal.
  • First comparison circuit U2 and second comparison circuit U3 The working principle is: when the voltage of the comparison voltage input terminal is higher than the voltage of the reference voltage terminal, the output terminal outputs a voltage.
  • First comparison circuit U2, second comparison circuit U3 All are operational amplifiers. And a voltage dividing resistor is connected to the reference voltage terminal and the comparison voltage input terminal of each operational amplifier.
  • the first comparison circuit U2 and the second comparison circuit U3 can be understood. It can also be implemented in other ways, such as chips or microcontrollers.
  • the comparison voltage input terminal of the first comparison circuit U2 is connected to the air flow sensor 10, and the first comparison circuit U2
  • the reference voltage terminal takes a preset value as the reference voltage of the first comparison circuit U2.
  • the reference voltage terminal of the second comparison circuit U3 corresponding to U2 is connected.
  • 'adjacent' refers to the adjacent when the at least two comparison control circuits 20a are sorted by the size of a preset value.
  • Second comparison circuit U3 The comparison voltage input terminal is connected to the output end of the first comparison circuit U2, and the reference voltage terminal of the second comparison circuit U3 is connected to the voltage divider resistor and grounded.
  • First comparison circuit U2 The flow signals are respectively compared with each preset value, and the output end of the first comparison circuit U2 whose preset value is smaller than the air flow signal outputs a second voltage to the comparison voltage input end
  • the second comparison circuit U3 When only one of the first comparison circuits U2 has a preset value smaller than the airflow signal, the second comparison circuit U3 The output of the output outputs an on signal to the corresponding switch unit 40. When the preset value of one or more first comparison circuits U2 is smaller than the airflow signal, the first comparison circuit U2 is smaller than the airflow signal at all preset values.
  • the second comparison circuit U3 corresponding to the first comparison circuit U2 having the relatively largest preset value outputs the ON signal to the corresponding switch unit 40, and the second comparison circuit U3 corresponding to the remaining first comparison circuit U2.
  • the second voltage of the output of the first comparison circuit U2 connected to the reference voltage terminal of the second comparison circuit U3, respectively, is suppressed to be turned off.
  • control module 20 may further include at least two delay units 200, each delay unit 200. It is connected between each of the second comparison circuit U3 and the switch unit 40 corresponding to the second comparison circuit U3.
  • the delay unit 200 is configured to receive the second comparison circuit U3 When the signal is turned on, the corresponding switching unit 40 is continuously increased in the predetermined time, so that the switching unit 40 is turned on for the predetermined time period, and the switching unit 40 is completed after the predetermined time is over. Automatically closed, the corresponding heating element 30 stops heating.
  • an amplifying unit U1 is further disposed between the air flow sensor 10 and each of the first comparing circuits U2.
  • the amplification unit U1 It is used to amplify the airflow signal detected by the airflow sensor 10, and then send the amplified airflow signal to each of the first comparison circuits U2.
  • First amplification unit U1 An operational amplifier can be used, but other conventional amplifying circuits can of course be used.
  • the switching unit 40 may be a common switching circuit composed of a MOS transistor or a triode.
  • the present invention also provides an electronic cigarette comprising the control circuit of any of the above embodiments.
  • the atomizer of the electronic cigarette is provided with at least two oil storage members for storing different smoke oils, and at least two heating elements of the control circuit 30 They are installed in the oil reservoir in a one-to-one correspondence, and the electronic cigarette has only one air flow sensor 10.
  • the air flow sensor 10 is disposed at an air inlet of the electronic cigarette.
  • the electronic cigarette may further comprise at least two atomizers, at least two heating elements of the control circuit 30 They are respectively disposed in the at least two atomizers one by one.
  • the number of the air flow sensors 10 is at least two, preferably three. Each air flow sensor 10 Different working pressure segments are set separately. When the airflow sensor 10 senses the airflow signal corresponding to the working pressure section, the airflow sensor sends the airflow signal to the control module 20.
  • the present invention also provides a method for controlling an electronic cigarette. As shown in FIG. 4, in the first embodiment of the control method, the following steps are included:
  • the airflow sensor 10 collects the airflow signal in each of the inhaled electronic cigarettes and sends the airflow signal to the control module 20;
  • the control module 20 compares the airflow signal with a preset value, and selects a transmit conduction signal to at least one of the at least two switch units 40 according to the comparison result, and the switch unit 40 that receives the turn-on signal is turned on. In order to heat the corresponding heating element 30.
  • the airflow signal is a voltage signal generated by the airflow sensor 10 according to the airflow change
  • the preset value is a voltage value correspondingly set according to the airflow signal
  • step S2 includes the following steps:
  • the control module 20 is a microprocessor, and the analog-to-digital conversion unit 21 of the microprocessor converts the airflow signal in the form of an analog signal into an airflow signal in the form of a digital signal, preset at least two different preset values, and the at least two The preset values are stored in the storage unit 22 of the microprocessor;
  • the comparison unit 23 of the microprocessor compares the peak value of the airflow signal converted to the digital signal with each preset value, and selects a maximum preset value of the at least two preset values that is less than the peak value, and according to The maximum preset value sends a comparison result signal to the control unit 24 of the microprocessor;
  • the control unit 24 selects a transmission ON signal to one of the at least two switching units 40 according to the comparison result signal, and the switching unit 40 that receives the conduction signal is turned on to heat the corresponding heating element 30.
  • step S2.3 the control unit 24 selects a transmission ON signal to one of the at least two switching units 40 according to the comparison result signal, and transmits a trigger signal to the timing unit 25 of the microprocessor.
  • the timing unit 25 starts timing when receiving the trigger signal, and sends a feedback signal to the control unit 24 after timing the preset time.
  • the control unit 24 sends a shutdown signal to the switch unit 40 in the on state according to the feedback signal, the switch unit 40. Closing causes the heating element 30 to stop heating.
  • step S2 may further include the following steps:
  • the preset value of each of the comparison control circuit 20a of the control module 20 is sequentially increased, and the airflow signal triggers the comparison control circuit 20a whose preset value is smaller than the airflow signal;
  • the comparison control circuit 20a When the comparison control circuit 20a is triggered, the output end of the comparison control circuit 20a outputs an on signal to the corresponding switch unit 40, so that the heating element 30 in the corresponding oil reservoir is heated;
  • comparison control circuit 20a When more than one comparison control circuit 20a is triggered, all of the triggered comparison control circuits 20a are sorted according to the magnitude of the preset value, and the comparison control circuit 20a of the adjacent two comparison control circuits 20a having a relatively large preset value is suppressed.
  • the comparison control circuit 20a having a relatively small preset value is turned off, and the comparison control circuit 20a having the largest preset value outputs the on-signal.
  • the comparison control circuit 20a having the largest preset value outputs an ON signal to the control terminal of the switch unit 40, and the remaining comparison control circuits 20a are respectively turned off by the comparison control circuit 20a whose preset value is higher than and close to itself.
  • the output terminal of the second comparison circuit U3 of the comparison control circuit 20a outputs an on signal.
  • the first comparison circuit U2 corresponding to the largest preset value corresponds to the first
  • the second comparison circuit U3 outputs an on signal to the control terminal of the switch unit 40, and the second comparison circuit U3 corresponding to the remaining first comparison circuit U2 is respectively connected to the first comparison circuit U2 connected to the reference voltage terminal of the second comparison circuit U3. The second voltage of the output is suppressed and thus turned off.
  • step S23 the second comparison circuit U3 first transmits the on signal to the delay unit 200, and the delay unit 200 After receiving the turn-on signal, the turn-on signal is continuously supplied to the corresponding switch unit 40 for a predetermined time.
  • the switching unit 40 is turned on during the period in which the on signal is received, and when the on signal is not received, the switch unit 40 Auto off.
  • control module 20 of the present invention controls the corresponding heating element 30 based on the airflow signal collected by the airflow sensor 10.
  • the heat is generated so that the smoke oil in the corresponding oil storage member is atomized to achieve the purpose of changing the smoke taste by smoking.
  • control module 20 can further control the heating element 30.
  • the duration of heating more precisely control the amount of smoke generated per cigarette, according to the smoking habits and preferences of various smokers, more reasonable allocation of smoke per cigarette can make the best smoking effect, it can also save smoke Oil and electricity prevent the user from forgetting to turn off the electronic cigarette so that the electronic cigarette is always working.

Abstract

一种电子烟控制电路、电子烟以及电子烟的控制方法，电子烟控制电路用于控制电子烟，包括至少一个气流传感器（10）、控制模块（20）、至少两个开关单元（40）以及与每一开关单元（40）对应连接的加热元件（30），至少两个开关单元（40）以及至少一个气流传感器（10）分别与控制模块（20）连接；气流传感器（10）用于采集每次吸入电子烟内的气流信号并将气流信号发送给控制模块（20）,控制模块（20）用于将每次的气流信号与预设值进行比较，并根据比较结果选择发送导通信号给至少两个开关单元（40）中的至少一个开关单元（40），开关单元（40）用于在收到导通信号后导通以使得对应的加热元件（30）加热，加热元件（30）用于加热对应储油件中的烟油以使其雾化。本发明具有可以根据吸烟力度改变吸烟口味，提高用户体验的有益效果。

Description

[根据细则37.2由ISA制定的发明名称]　电子烟控制电路、电子烟以及电子烟的控制方法 技术领域
本发明涉及日用电子产品领域，尤其涉及一种控制电路、电子烟以及电子烟的控制方法。
背景技术
现有技术中，电子烟是由雾化器和电池杆组成。其中雾化器内设置有存储有烟油的储油件以及用于加热烟油的加热元件。当加热元件发热时储油件中的烟油会挥发雾化，变成烟雾从吸嘴处输出，达到抽烟效果。电池杆内有一个空气压力驱动开关和一个供电模块。当抽烟时空气压力驱动开关感应到空气流通形成的压力，触发该供电模块给加热元件供电，该加热元件加热烟油形成烟雾。
由于上述技术中，用户在吸烟时无论吸烟力度的大小如何，雾化器烟雾量的多少和口味都一样。因此，用户不能完全体验到抽真烟时轻抽和重抽时的烟雾量的变化，口味单一，不能自动根据吸烟者的抽烟习性进行调味，因而不能满足需要。
发明内容
本发明要解决的技术问题在于，针对现有技术中用户不能完全体验到抽真烟时烟雾口味随抽烟力度而改变的缺陷，提供一种改进的控制电路、电子烟以及电子烟的控制方法。
本发明解决技术问题采用的技术方案是：提供 一种控制电路，用于控制电子烟，包括至少一个气流传感器、控制模块、至少两个开关单元以及与每一所述开关单元对应连接的加热元件，所述至少两个开关单元以及所述至少一个气流传感器分别与所述控制模块连接；
所述气流传感器用于采集每次吸入所述电子烟内的气流信号并将所述气流信号发送给所述控制模块，所述控制模块用于将每次的所述气流信号与预设值进行比较，并根据比较结果选择发送导通信号给所述至少两个开关单元中的至少一个开关单元，所述开关单元用于在收到所述导通信号后导通以使得对应的加热元件加热，所述加热元件用于加热对应储油件中的烟油以使其雾化。
优选地，所述控制电路还包括供电模块，所述供电模块分别与所述控制模块以及每一所述开关单元连接，所述供电模块用于为所述控制模块、每一所述开关单元以及每一所述加热元件提供供电电源。
优选地，所述控制模块为微处理器，所述微处理器包括存储单元、比较单元以及控制单元，所述比较单元分别与所述气流传感器以及所述控制单元连接，所述控制单元分别与所述至少两个开关单元连接，所述存储单元与所述比较单元连接；
所述存储单元用于存储所述至少两个预设值，所述比较单元用于将所述气流信号的峰值与每一所述预设值进行比较，选择出所述至少两个预设值中小于所述峰值的最大预设值，并根据该最大预设值发送一个比较结果信号给所述控制单元，所述控制单元根据所述比较结果信号选择发送所述导通信号给所述至少两个开关单元中的一个开关单元。
优选地，所述微处理器还包括计时单元，所述计时单元与所述控制单元连接，所述控制单元发送所述导通信号的同时发送一个触发信号给所述计时单元，所述计时单元收到触发信号后开始计时，并在计时预定时间后发送反馈信号给所述控制单元，所述控制单元根据所述反馈信号发送关闭信号给该处于导通状态的开关单元，该处于导通状态的开关单元接收到所述关闭信号后关闭使得对应的加热元件停止加热。
优选地，所述控制模块包括至少两路比较控制电路，每一所述比较控制电路的输入端分别与所述气流传感器连接，每一所述比较控制电路的输出端分别对应连接有一所述开关单元，所述至少两路比较控制电路设置依次增加的所述预设值，所述气流信号触发预设值小于所述气流信号的比较控制电路；
在一路所述比较控制电路被触发时，该所述比较控制电路的输出端输出所述导通信号；
在一路以上的比较控制电路被触发时，所有被触发的比较控制电路按预设值的大小排序，相邻两个比较控制电路中，预设值相对较大的比较控制电路抑制预设值相对较小的比较控制电路使其关闭，预设值最大的所述比较控制电路输出所述导通信号。
优选地，每一所述比较控制电路包括第一比较电路和第二比较电路，所述第一比较电路的比较电压输入端与所述气流传感器连接，所述第一比较电路的基准电压端以所述预设值作为基准电压，相邻两个比较控制电路中的预设值较大的第一比较电路的输出端与预设值较小的第一比较电路对应的第二比较电路的基准电压端连接；所述第二比较电路的比较电压输入端与所述第一比较电路的输出端连接；所述第一比较电路用于将所述气流信号分别与每一所述预设值进行比较，预设值小于该气流信号的所述第一比较电路的输出端输出一个第二电压给所述第二比较电路的比较电压输入端。
优选地，所述控制模块还包括至少两个延时单元，所述至少两个延时单元分别一一对应地连接在所述开关单元与所述第二比较电路之间，所述延时单元用于在收到所述第二比较电路输出的导通信号后，在持续地预定时间内向所述开关单元提供导通信号使得所述开关单元在持续的预定时间内导通。
优选地，所述控制电路还包括用于将所述气流信号放大的放大单元，所述放大单元连接在所述气流传感器与所述控制模块之间。
优选地，所述开关单元为MOS管。
本发明还提供了一种电子烟，所述电子烟包括上述所述的控制电路。
优选地，所述电子烟包括至少两个用于储存不同烟油的储油件，每一所述加热元件一一对应地设置在所述储油件中。
优选地，所述电子烟包括至少两个雾化器，所述至少两个储油件分别设置在所述至少两个雾化器中。
优选地，所述电子烟包括一个雾化器，所述至少两个储油件均设置在所述一个雾化器中。
优选地，所述电子烟包括至少两个气流传感器，每一所述气流传感器对应设置有不同的工作压力段，并在检测到位于该工作压力段的气流信号时，发送该气流信号给所述控制模块。
本发明还提供了一种电子烟的控制方法，包括如下步骤：
S1 ：气流传感器采集每次吸入电子烟内的气流信号并将所述气流信号发送给控制模块；
S2 ：所述控制模块将所述气流信号与预设值进行比较，并根据比较结果选择发送导通信号给至少两个开关单元中的至少一个开关单元，该收到所述导通信号的开关单元导通以使得对应的加热元件加热。
优选地，所述步骤S2进一步包括如下步骤：
S2.1 ：所述控制模块为微处理器，设置至少两个预设值并存储在所述微处理器的存储单元中；
S2.2 ：所述微处理器的比较单元将所述气流信号的峰值与分别与每一所述预设值进行比较，选择出所述至少两个预设值中的小于该峰值的最大预设值，并根据该最大预设值发送一个比较结果信号给所述微处理器的控制单元；
S2.3 ：所述控制单元根据所述比较结果信号选择发送导通信号给至少两个开关单元中的一个开关单元，该收到所述导通信号的开关单元导通以使得对应的加热元件加热。
优选地，在所述步骤S2.3中，所述控制单元根据所述比较结果信号选择发送导通信号给至少两个开关单元中的一个开关单元的同时，发送触发信号给所述微处理器的计时单元，所述计时单元收到所述触发信号时开始计时，并在计时预设时间后发送反馈信号给所述控制单元，所述控制单元根据所述反馈信号发送关闭信号给该处于导通状态的开关单元，该开关单元关闭使得所述加热元件停止加热。
优选地，所述步骤S2进一步包括如下步骤：
所述控制模块的每一路比较控制电路的分别依次增加地设置所述预设值，所述气流信号触发预设值小于所述气流信号的比较控制电路；
在一路所述比较控制电路被触发时，该所述比较控制电路的输出端输出所述导通信号给对应的开关单元；
在一路以上的比较控制电路被触发时，所有被触发的比较控制电路按预设值的大小排序，相邻两个比较控制电路中，预设值相对较大的比较控制电路抑制预设值相对较小的比较控制电路使其关闭，预设值最大的所述比较控制电路输出所述导通信号。
优选地，在步骤S2中，所述比较控制电路将所述导通信号先发送给延时单元，所述延时单元接收该导通信号后，在预定时间内向对应的开关单元持续提供该导通信号。
实施本发明提供的控制电路、电子烟以及电子烟的控制方法具有以下有益效果：本发明提供的控制模块根据气流压强传感器采集的气流信号控制相应的一个或多个开关单元导通，使得该开关单元对应的加热元件加热不同储油件里的烟油，以达到抽烟力度改变烟雾口味以及烟雾量的目的，具有提高用户体验的有益效果；此外，抽烟力度和吸烟口味不同的吸烟者可以实现共用一根电子烟，其在外出旅游等不方便携带较多物品的环境中便利性较为明显，特别给具有多人吸烟的家庭带来较大便利。
附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图 1 是本发明一实施例中的控制电路的原理框图；
图 2 是本发明第一实施例中的控制模块的原理框图；
图 3 是本发明第二实施例中的控制电路的原理框图；
图 4 是本发明第二实施例中的控制电路的电路原理图
图 5 是本发明一实施例中的电子烟的控制方法的流程框图；
图 6 是本发明一实施例中的电子烟的控制方法的步骤 S2 的具体流程框图。
具体实施方式
为了解决现有技术中 用户不能完全体验到抽真烟时烟雾口味及烟雾量随抽烟力度而改变的缺陷，本发明的创新点在于，可以根据用户实际重抽和轻抽的气流信号与预设值进行比较，对应开启连接在不同加热元件的开关单元，控制该开关单元对应的加热元件加热不同储油件里的烟油，以达到抽烟力度改变烟雾口味及烟雾量的目的。
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
如图1所示，一种控制电路，用于控制电子烟，其包括至少一个气流传感器10、控制模块20、至少两个加热元件30、至少两个开关单元40以及供电模块50。该至少两个开关单元40的控制端、气流传感器10以及供电模块50分别与该控制模块20连接。每一开关单元40分别一一对应地连接在每一加热元件30与供电模块50之间。
气流传感器10用于采集每次吸入电子烟内的气流信号并将气流信号发送给控制模块20，控制模块20用于将每次的气流信号与预设值进行比较，并根据比较结果选择发送导通信号给至少两个开关单元40中的一个开关单元40，开关单元40用于在收到导通信号后导通以使得对应的加热元件30加热，加热元件30用于加热对应储油件中的烟油以使其雾化。在本实施例中开关单元以及加热元件的个数均为3个。气流传感器的个数为1个。开关单元40可以选用常用开关电路即可。当然，在其它实施例中，所述开关单元40中的多个开关单元40可以同时导通，或者全部开关单元也可以同时导通，以实现自动调出多种味道及改变烟雾量的目的。所述加热元件30中的电阻值可以相同，也可以不同，其根据需要进行设置，在此不作限定。例如，在本实施例中，所述加热元件30之间的电阻值不同，且对应不同的储油件。
该控制电路控制电子烟使得用户可通过调整每次抽烟的力度来控制对应储油件中的加热元件30发热以达到相应调整吸烟的口味，所述烟雾量也能自动根据吸烟力度进行调整，因而能够提高用户体验，使得该电子烟更加接近真烟 ；此外，抽烟力度和吸烟口味不同的吸烟者可以实现共用一根电子烟，其在外出旅游等不方便携带较多物品的环境中便利性较为明显，特别给具有多人吸烟的家庭带来较大便利 。
在第一实施例中，该控制模块20采用微处理器。如图2所示，该微处理器包括模数转换单元21、存储单元22、比较单元23以及控制单元24。比较单元23分别与气流传感器10以及控制单元24连接，控制单元24分别与至少两个开关单元40连接，存储单元22与比较单元23连接，模数转换单元21与比较单元23连接。
模数转换单元21用于将模拟信号转换为数字信号，存储单元22用于存储预先设置的至少两个预设值，比较单元23用于将转换为数字信号后的气流信号的峰值与每一预设值进行比较，选择出至少两个预设值中小于该气流信号的峰值的最大预设值，并根据该最大预设值发送一个比较结果信号给控制单元24，控制单元24根据比较结果信号选择发送导通信号给至少两个开关单元40中的一个开关单元40。
可以理解地，该微处理器还可以包括一个计时单元25，该计时单元25与控制单元24连接，控制单元24在发送导通信号给开关单元40的同时发送一个触发信号给该计时单元25，计时单元25收到触发信号后开始计时，并在计时预定时间后发送反馈信号给控制单元24，控制单元24根据该反馈信号发送关闭信号给该处于导通状态的开关单元40，该处于导通状态的开关单元40接收到关闭信号后关闭使得对应的加热元件30停止加热。
该计时单元25通过设定预定时间从而控制每次吸烟时对应开关单元40的导通时间，进而更加精确地控制每次吸烟时的烟雾量。并且，在持续预定时间后自动关闭该开关单元24还可以节约烟油和电能，以免造成不必要的浪费。
当该比较单元23在该预定时间以内接收到另一个气流信号，并产生一个比较结果信号传递给控制单元24，也即是两次收到气流信号的间隔小于在计时单元25中设定的预定时间时：
如果该后收到比较结果信号与前一次的比较结果信号相同，控制单元24发送一个触发信号给计时单元25，该计时单元25收到该触发信号后清零，并重新开始计时，并在计时预定时间后发送反馈信号给该控制单元24，控制单元24收到反馈信号后再发送关闭信号给处于导通状态的开关单元40使其关闭。
如果该后收到的比较结果信号与前一次的比较结果信号不同，控制单元24发送一个关闭信号给处于导通状态的开关单元40使其关闭，同时发送一个导通信号给与该后收到的比较结果信号对应的开关单元40使其导通。并且还发送一个触发信号给计时单元25，该计时单元25清零并重新开始计时，计时预定时间后发送一个反馈信号给控制单元24，控制单元24发送关闭信号给处于导通状态的开关单元40使其关闭。
在第二实施例中，如图 3 所示，控制模块 20 可以包括至少两路比较控制电路 20a ， 每一比较控制电路20a的输入端分别与气流传感器10连接，每一比较控制电路20a的输出端分别对应与一开关单元40连接。该至少两个预设值分别设置在至少两路比较控制电路20a中，并且该至少两个预设值是依次升高的。该气流信号触发预设值小于气流信号的比较控制电路20a。在只有一路比较控制电路20a被触发时，该比较控制电路20a的输出端输出导通信号给开关单元40的控制端。当一路以上的比较控制电路20a被触发时，所有被触发的比较控制电路20a按预设值的大小排序，相邻两个比较控制电路20a中，预设值相对较大的比较控制电路20a抑制预设值相对较小的比较控制电路20a使其关闭，预设值最大的比较控制电路20a输出导通信号。
进一步地，如图 4 所示，每一比较控制电路 20a 包括第一比较电路 U2 和第二比较电路 U3 。第一比较电路 U2 以及第二比较电路 U3 均分别包括比较电压输入端、基准电压端以及输出端。第一比较电路 U2 以及第二比较电路 U3 的工作原理为：当比较电压输入端的电压高于基准电压端的电压时，输出端输出一个电压。第一比较电路 U2 、第二比较电路 U3 均为运算放大器。并且每一运算放大器的基准电压端和比较电压输入端均连接有一个分压电阻。当然可以理解地，该第一比较电路 U2 以及第二比较电路 U3 也可以采用其他方式实现，如芯片或者单片机等。
第一比较电路 U2 的比较电压输入端与气流传感器 10 连接，第一比较电路 U2 的基准电压端以预设值作为第一比较电路 U2 的基准电压。相邻两个比较控制电路 20a 中的预设值较大的第一比较电路 U2 的输出端与预设值较小的第一比较电路 U2 对应的第二比较电路 U3 的基准电压端连接。本文中的'相邻'指的是将该至少两个比较控制电路 20a 按预设值的大小进行排序时的相邻。第二比较电路 U3 的比较电压输入端与第一比较电路 U2 的输出端连接，第二比较电路 U3 的基准电压端接分压电阻后接地。第一比较电路 U2 将流信号分别与每一预设值进行比较，预设值小于该气流信号的第一比较电路 U2 的输出端输出一个第二电压给第二比较电路 U3 的比较电压输入端。
当只有一个第一比较电路 U2 的预设值小于气流信号时，该第二比较电路 U3 的输出端输出导通信号给对应的开关单元 40 。当一个以上的第一比较电路 U2 的预设值小于气流信号时，在所有预设值小于气流信号的第一比较电路 U2 中，预设值相对最大的第一比较电路 U2 对应的第二比较电路 U3 输出导通信号给对应的开关单元 40 ，其余第一比较电路 U2 对应的第二比较电路 U3 分别被与该第二比较电路 U3 的基准电压端连接的第一比较电路 U2 的输出的第二电压抑制从而关闭。
作为本实施例的优选方案，控制模块 20 还可以包括至少两个延时单元 200 ，每一延时单元 200 连接在每一第二比较电路 U3 以及该第二比较电路 U3 对应的开关单元 40 之间。延时单元 200 用于在其收到第二比较电路 U3 的导通信号时，在预定时间内给对应的开关单元 40 持续提高该导通信号，使得开关单元 40 在该持续的预定时间内导通，该预定时间结束后该开关单元 40 自动关闭，对应的加热元件 30 停止加热。
优选地，在气流传感器 10 与每一第一比较电路 U2 之间还设置有一个放大单元 U1 。该放大单元 U1 用于将气流传感器 10 检测到的气流信号放大，然后将放大后的气流信号分别发送给每一第一比较电路 U2 。第一放大单元 U1 可以采用运算放大器，当然也可以采用其他常规放大电路。
在本实施中，开关单元 40 可以为 MOS 管或三极管等组成的常见开关电路。
本发明还提供了一种电子烟，该电子烟包括上述任一实施例中的控制电路。所述电子烟的雾化器中设置有至少两个用于储存不同烟油的储油件，控制电路的至少两个加热元件 30 分别一一对应地安装在该储油件中，并且该电子烟只有一个气流传感器 10 。气流传感器 10 设置在所述电子烟的进气口处。
或者，该电子烟还可以包括至少两个雾化器，该控制电路的至少两个加热元件 30 分别一一对应地设置在该至少两个雾化器中。并且，该气流传感器 10 的个数为至少两个，优选为三个。每个气流传感器 10 分别设置有不同的工作压力段。当该气流传感器 10 感应到对应工作压力段的气流信号时，该气流传感器发 10 送该气流信号给控制模块 20 。
本发明还提供了一种电子烟的控制方法，如图 4 所示，该控制方法的第一实施例中，包括以下步骤：
S1 ：气流传感器10采集每次吸入电子烟内的气流信号并将气流信号发送给控制模块20；
S2 ：控制模块20将气流信号与预设值进行比较，并根据比较结果选择发送导通信号给至少两个开关单元40中的至少一个开关单元40，该收到导通信号的开关单元40导通以使得对应的加热元件30加热。
在本发明的所述实施例中，所述气流信号为气流传感器10根据气流变化产生的电压信号，所述预设值为根据气流信号对应设置的电压值。
进一步地，如图4所示，步骤S2包括如下步骤：
S2.1 ：控制模块20为微处理器，微处理器的模数转换单元21将模拟信号形式的气流信号转化为数字信号形式的气流信号，预设至少两个不同的预设值，并将该至少两个预设值存储在微处理器的存储单元22中；
S2.2 ：微处理器的比较单元23将转为数字信号后的气流信号的峰值分别与每一预设值进行比较，选择出至少两个预设值中的小于该峰值的最大预设值，并根据该最大预设值发送一个比较结果信号给微处理器的控制单元24；
S2.3 ：控制单元24根据比较结果信号选择发送导通信号给至少两个开关单元40中的一个开关单元40，该收到导通信号的开关单元40导通以使得对应的加热元件30加热。
并且在步骤S2.3中，控制单元24根据比较结果信号选择发送导通信号给至少两个开关单元40中的一个开关单元40的同时，发送触发信号给微处理器的计时单元25。计时单元25收到触发信号时开始计时，并在计时预设时间后发送反馈信号给控制单元24，控制单元24根据反馈信号发送关闭信号给该处于导通状态的开关单元40，该开关单元40关闭使得加热元件30停止加热。
或者，采用第二实施例中的控制模块20时，该步骤S2可以进一步包括以下步骤：
控制模块20的每一路比较控制电路20a的预设值分别依次升高，气流信号触发预设值小于气流信号的比较控制电路20a；
在一路比较控制电路20a被触发时，该比较控制电路20a的输出端输出导通信号给对应的开关单元40，使得对应储油件中的加热元件30发热；
在一路以上的比较控制电路20a被触发时，所有被触发的比较控制电路20a按预设值的大小排序，相邻两个比较控制电路20a中，预设值相对较大的比较控制电路20a抑制预设值相对较小的比较控制电路20a使其关闭，预设值最大的比较控制电路20a输出所述导通信号。预设值最大的比较控制电路20a输出导通信号给开关单元40的控制端，其余比较控制电路20a分别被该预设值高于且相近本身的比较控制电路20a关闭。
进一步地，当只有一个比较控制电路20a的第一比较电路U2的预设值小于气流信号时，该比较控制电路20a的第二比较电路U3的输出端输出导通信号。当一个以上的所述第一比较电路U2的预设值小于气流信号时，在所有预设值小于气流信号的第一比较电路U2中，预设值相对最大的第一比较电路U2对应的第二比较电路U3输出导通信号给开关单元40的控制端，其余第一比较电路U2对应的第二比较电路U3分别被与该第二比较电路U3的基准电压端连接的第一比较电路U2的输出的第二电压抑制从而关闭。
在步骤 S23 中，第二比较电路 U3 先将导通信号先发送给延时单元 200 ，延时单元 200 接收该导通信号后，在预定时间内向对应的开关单元 40 持续提供该导通信号。开关单元 40 在接收到导通信号的时间段里导通，当没有接收到导通信号时，该开关单元 40 自动关闭。
综上所述，本发明的控制模块 20 根据气流传感器 10 采集的气流信号控制对应的发热元件 30 发热，以使得对应 储油件里的烟油雾化，以达到抽烟力度改变烟雾口味的目的。进一步地，该控制模块 20 还可以进一步控制加热元件 30 加热的持续时间，更精确地控制每次吸烟的烟雾产生量，根据各种吸烟人群的吸烟习惯以及喜好，更加合理配置每次吸烟的烟雾量可以使得吸烟效果达到最佳，其还可以节约烟油和电能，防止用户忘记关闭电子烟使得电子烟一直处于工作状态。
应当理解的是，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (19)

  1. 一种控制电路，用于控制电子烟，其特征在于，包括至少一个气流传感器（10）、控制模块（20）、至少两个开关单元（40）以及与每一所述开关单元（40）对应连接的加热元件（30），所述至少两个开关单元（40）以及所述至少一个气流传感器（10）分别与所述控制模块（20）连接； 所述气流传感器（10）用于采集每次吸入所述电子烟内的气流信号并将所述气流信号发送给所述控制模块（20），所述控制模块（20）用于将每次的所述气流信号与预设值进行比较，并根据比较结果选择发送导通信号给所述至少两个开关单元（40）中的至少一个开关单元（40），所述开关单元（40）用于在收到所述导通信号后导通以使得对应的加热元件（30）加热，所述加热元件（30）用于加热对应储油件中的烟油以使其雾化。
  2. 根据权利要求1所述的控制电路，其特征在于，所述控制电路还包括供电模块（50），所述供电模块（50）分别与所述控制模块（20）以及每一所述开关单元（40）连接，所述供电模块（50）用于为所述控制模块（20）、每一所述开关单元（40）以及每一所述加热元件（30）提供供电电源。
  3. 根据权利要求2所述的控制电路，其特征在于，所述控制模块（20）为微处理器，所述微处理器包括存储单元（22）、比较单元（23）以及控制单元（24），所述比较单元（23）分别与所述气流传感器（10）以及所述控制单元（24）连接，所述控制单元（24）分别与所述至少两个开关单元（40）连接，所述存储单元（22）与所述比较单元（23）连接； 所述存储单元（22）用于存储至少两个预设值，所述比较单元（23）用于将所述气流信号的峰值与每一所述预设值进行比较，选择出所述至少两个预设值中小于所述峰值的最大预设值，并根据该最大预设值发送一个比较结果信号给所述控制单元（24），所述控制单元（24）根据所述比较结果信号选择发送所述导通信号给所述至少两个开关单元（40）中的一个开关单元（40）。
  4. 根据权利要求3所述的控制电路，其特征在于，所述微处理器还包括计时单元（25），所述计时单元（25）与所述控制单元（24）连接，所述控制单元（24）发送所述导通信号的同时发送一个触发信号给所述计时单元（25），所述计时单元（25）收到触发信号后开始计时，并在计时预定时间后发送反馈信号给所述控制单元（24），所述控制单元（24）根据所述反馈信号发送关闭信号给该处于导通状态的开关单元（40），该处于导通状态的开关单元（40）接收到所述关闭信号后关闭使得对应的加热元件（30）停止加热。
  5. 根据权利要求1所述的控制电路，其特征在于，所述控制模块（20）包括至少两路比较控制电路（20a），每一所述比较控制电路（20a）的输入端分别与所述气流传感器（10）连接，每一所述比较控制电路（20a）的输出端分别对应连接有一所述开关单元（40），所述至少两路比较控制电路（20a）设置依次增加的所述预设值，所述气流信号触发预设值小于所述气流信号的比较控制电路（20a）；
    在一路所述比较控制电路（20a）被触发时，该所述比较控制电路（20a）的输出端输出所述导通信号；
    在一路以上的比较控制电路（20a）被触发时，所有被触发的比较控制电路（20a）按预设值的大小排序，相邻两个比较控制电路（20a）中，预设值相对较大的比较控制电路（20a）抑制预设值相对较小的比较控制电路（20a）使其关闭，预设值最大的所述比较控制电路（20a）输出所述导通信号。
  6. 根据权利要求5所述的控制电路，其特征在于，每一所述比较控制电路（20a）包括第一比较电路（U2）和第二比较电路（U3），所述第一比较电路（U2）的比较电压输入端与所述气流传感器（10）连接，所述第一比较电路（U2）的基准电压端以所述预设值作为基准电压，相邻两个比较控制电路（20a）中的预设值较大的第一比较电路（U2）的输出端与预设值较小的第一比较电路（U2）对应的第二比较电路（U3）的基准电压端连接；所述第二比较电路（U3）的比较电压输入端与所述第一比较电路（U2）的输出端连接；所述第一比较电路（U2）用于将所述气流信号分别与每一所述预设值进行比较，预设值小于该气流信号的所述第一比较电路（U2）的输出端输出一个第二电压给所述第二比较电路（U3）的比较电压输入端。
  7. 根据权利要求6所述的控制电路，其特征在于，所述控制模块（20）还包括至少两个延时单元（200），所述至少两个延时单元（200）分别一一对应地连接在所述开关单元（40）与所述第二比较电路（U3）之间，所述延时单元（200）用于在收到所述第二比较电路(U3）输出的导通信号后，在持续地预定时间内向所述开关单元（40）提供导通信号使得所述开关单元（40）在持续的预定时间内导通。
  8. 根据权利要求7所述的控制电路，其特征在于，所述控制电路还包括用于将所述气流信号放大的放大单元（U1），所述放大单元（U1）连接在所述气流传感器（10)与所述控制模块(20)之间。
  9. 根据权利要求8所述的控制电路，其特征在于，所述开关单元(40)为MOS管（Q1）。
  10. 一种电子烟，其特征在于，所述电子烟包括如权利要求1所述的控制电路。
  11. 根据权利要求10所述的电子烟，其特征在于，所述电子烟包括至少两个用于储存不同烟油的储油件，每一所述加热元件（30）一一对应地设置在所述储油件中。
  12. 根据权利要求 11所述的电子烟，其特征在于，所述电子烟包括至少两个雾化器，所述至少两个储油件分别设置在所述至少两个雾化器中。
  13. 根据权利要求11所述的电子烟，其特征在于，所述电子烟包括一个雾化器，所述至少两个储油件均设置在所述一个雾化器中。
  14. 根据权利要求12所述的电子烟，其特征在于，所述电子烟包括至少两个气流传感器（10），每一所述气流传感器（10）对应设置有不同的工作压力段，并在检测到位于该工作压力段的气流信号时，发送该气流信号给所述控制模块（20）。
  15. 一种电子烟的控制方法，其特征在于，包括如下步骤：
    S1 ：气流传感器（10）采集每次吸入电子烟内的气流信号并将所述气流信号发送给控制模块（20）；
    S2 ：所述控制模块（20）将所述气流信号与预设值进行比较，并根据比较结果选择发送导通信号给至少两个开关单元（40）中的至少一个开关单元（40），收到所述导通信号的开关单元（40）导通以使得对应的加热元件（30）加热。
  16. 根据权利要求15所述的电子烟的控制方法，其特征在于，所述步骤S2进一步包括如下步骤：
    S2.1 ：所述控制模块（20）为微处理器，设置至少两个预设值并存储在所述微处理器的存储单元（22）中；
    S2.2 ：所述微处理器的比较单元（23）将所述气流信号的峰值与分别与每一所述预设值进行比较，选择出所述至少两个预设值中的小于该峰值的最大预设值，并根据该最大预设值发送一个比较结果信号给所述微处理器的控制单元（24）；
    S2.3 ：所述控制单元（24）根据所述比较结果信号选择发送导通信号给至少两个开关单元（40）中的一个开关单元（40），该收到所述导通信号的开关单元（40）导通以使得对应的加热元件（30）加热。
  17. 根据权利要求16所述的电子烟的控制方法，其特征在于，在所述步骤S2.3中，所述控制单元（24）根据所述比较结果信号选择发送导通信号给至少两个开关单元（40）中的一个开关单元（40）的同时，发送触发信号给所述微处理器的计时单元（25），所述计时单元（25）收到所述触发信号时开始计时，并在计时预设时间后发送反馈信号给所述控制单元（24），所述控制单元（24）根据所述反馈信号发送关闭信号给该处于导通状态的开关单元(40)，该开关单元（40）关闭使得所述加热元件（30）停止加热。
  18. 根据权利要求15所述的电子烟的控制方法，其特征在于，所述步骤S2进一步包括如下步骤：
    所述控制模块（20）的每一路比较控制电路（20a）分别依次增加地设置所述预设值，所述气流信号触发预设值小于所述气流信号的比较控制电路（20a）；
    在一路所述比较控制电路被触发（20a）时，该所述比较控制电路（20a）的输出端输出所述导通信号给对应的开关单元（40）；
    在一路以上的比较控制电路（20a）被触发时，所有被触发的比较控制电路（20a）按预设值的大小排序，相邻两个比较控制电路（20a）中，预设值相对较大的比较控制电路（20a）抑制预设值相对较小的比较控制电路（20a）使其关闭，预设值最大的所述比较控制电路（20a）输出所述导通信号。
  19. 根据权利18所述的电子烟的控制方法，其特征在于，在步骤S2中，所述比较控制电路（20a）将所述导通信号先发送给延时单元（200），所述延时单元（200）接收该导通信号后，在预定时间内向对应的开关单元（40）持续提供该导通信号。
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