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WO2016062167A1 - 温控电子烟及其温度控制方法 - Google Patents

温控电子烟及其温度控制方法 Download PDF

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Publication number
WO2016062167A1
WO2016062167A1 PCT/CN2015/088819 CN2015088819W WO2016062167A1 WO 2016062167 A1 WO2016062167 A1 WO 2016062167A1 CN 2015088819 W CN2015088819 W CN 2015088819W WO 2016062167 A1 WO2016062167 A1 WO 2016062167A1
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WO
WIPO (PCT)
Prior art keywords
temperature
heating wire
electronic cigarette
liquid
resistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/088819
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English (en)
French (fr)
Inventor
林光榕
郑贤彬
胡新弟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US15/325,725 priority Critical patent/US9955735B2/en
Priority to ES15852565T priority patent/ES2764283T3/es
Priority to JP2017501272A priority patent/JP6389317B2/ja
Priority to EP15852565.9A priority patent/EP3210480B1/en
Priority to PL15852565T priority patent/PL3210480T3/pl
Priority to DK15852565.9T priority patent/DK3210480T3/da
Publication of WO2016062167A1 publication Critical patent/WO2016062167A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/06—Inhaling appliances shaped like cigars, cigarettes or pipes
    • 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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • 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
    • A24F40/57—Temperature control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/023—Industrial applications
    • H05B1/0244—Heating of fluids
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/04—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised
    • A61M11/041—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters
    • A61M11/042—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters electrical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3368—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/82—Internal energy supply devices
    • A61M2205/8206—Internal energy supply devices battery-operated
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids

Definitions

  • the present invention relates to the field of electronic cigarette technology, and more particularly to a temperature-controlled electronic cigarette and a temperature control method for the temperature-controlled electronic cigarette.
  • E-cigarettes usually use the heat atomization of the liquid smoke through the atomizer to emit smoke for use by smokers. As people pay more attention to their health, people are aware of the harm of tobacco to people's health. Therefore, electronic cigarettes gradually It is widely used instead of cigarettes.
  • the object of the present invention is to provide a temperature-controlled electronic cigarette for overcoming the deficiencies of the above technology, and the temperature-controlled electronic cigarette can realize the function of monitoring the temperature of the heating element and its lead wire, and realizing the anti-dry burning protection for the electronic cigarette.
  • a temperature-controlled electronic cigarette comprising a casing, a liquid storage device disposed in the casing, an atomizing component, a power source, and a circuit control board with a smoking switch SW, which is improved
  • the atomizing component comprises a heating element and a lead wire thereof, and the material of the heating element and the lead wire thereof is a heat sensitive material whose resistance value changes with temperature and changes in proportion
  • the control board includes a power management module, and the power management module can determine the temperature represented by the heating element and its lead by continuously detecting the resistance value of the heating element and the lead, and issue a corresponding control signal to control the heating element and Its lead and power supply are switched on and off.
  • the power management module includes a chip U1, a transistor Q4, a MOS transistor M1, a resistor R3, a resistor R5, and a resistor R6, wherein
  • the chip U1 has a plurality of pins, including a first pin being a switch signal KEY1 end, a fourth pin being a power signal BT+ end, a ninth pin being a control signal HOT end, and a thirteenth pin being a ground end,
  • the sixteenth pin is the detection signal FB terminal;
  • One end of the smoking switch SW is grounded, and the other end is connected to the KEY1 end;
  • resistor R3 One end of the resistor R3 is connected to the HOT end, and the other end is connected to the base of the transistor Q4; the emitter of the transistor Q4 is grounded, and a resistor R4 is disposed between the base and the emitter.
  • the collector of the transistor Q4 is connected to the gate of the MOS transistor M1 and one end of the resistor R5, and the other end of the resistor R5 is commonly connected to the source of the MOS transistor M1 to the BT+ terminal;
  • the drain of the MOS transistor is an F+ terminal, and one end of the heating element and its lead is connected to the F+ terminal, and the other end is grounded; one end of the resistor R6 is grounded, and the other end is common to the drain of the MOS transistor. Connected to the FB terminal.
  • the power management module further includes a resistor R7 and a capacitor C1.
  • One end of the resistor R7 is connected to the FB end, the other end is connected to one end of the capacitor C1 and grounded, and the other end of the capacitor C1 is connected to the BT+. On the end.
  • the power management module further includes resistors R1, R2, LEDs D1, D2, the chip U1 further has a fifth pin and a sixth pin, and the fifth pin is connected to one end of the resistor R1 The other end of the resistor R1 is connected to one end of the light emitting diode D1, the sixth pin is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to one end of the light emitting diode D2, the light emitting diode D1 The other end and the other end of the LED D2 are grounded; when the power management module detects the heating element and its lead normal temperature signal, the U1 fifth pin is energized to cause D1 to indicate normal smoking status. When the power management module detects the abnormal temperature signal of the heating element and its lead and cuts off the power supply of the heating element and its lead, the U1 sixth pin is energized to cause the D2 to indicate the electronic cigarette dry burning fault state.
  • the material of one or both of the heat generating body and its lead is a heat sensitive material having a positive temperature coefficient.
  • the atomization assembly further comprises a liquid guiding member for discharging the liquid smoke in the liquid storage device, and the heating element is a heating wire that is in close contact with the liquid guiding member.
  • the invention also discloses a temperature control method for temperature-controlled electronic cigarette, by which the temperature control of the internal heating element of the electronic cigarette is realized, and the problem that the heating element is dry-burned during the smokeless liquid and the temperature is too high is prevented.
  • the method includes the following steps:
  • the smoking switch SW When the user starts smoking, the smoking switch SW is turned on, and the control chip U1 sends a control signal to the HOT terminal according to the KEY1 signal, so that the MOS transistor M1 turns on the power of the heating wire R, and then U1 starts to read the temperature electrical signal of the FB terminal;
  • the heating wire R atomizes the smoke liquid. During this process, the temperature of the heating wire R is relatively stable, and the resistance value thereof does not change substantially. The temperature change rate of the chip U1 reading FB end does not change. The control signal sent by U1 at the HOT terminal does not change and can be smoked normally;
  • the chip U1 reads the temperature electric signal of the FB terminal changes, and the chip U1 controls the HOT terminal to cut off the power output of the MOS tube M1 to the heating wire R, so that smoking cannot be performed, and the temperature of the heating wire R starts to decrease;
  • the U1 detects the temperature of the FB end even if the user turns on the power again after turning on the smoking switch SW. The signal is still abnormal and the power is cut off quickly;
  • the heating wire R When the temperature of the heating wire R drops below the set threshold of 210 ° C and the smoke liquid is added, the heating wire R returns to the normal resistance value.
  • U1 turns on the heating wire power supply, and the heating wire normally atomizes the liquid smoke. U1 detects that the temperature electrical signal of the FB terminal is normal, and the power supply remains open.
  • the present invention also discloses another temperature control method for temperature-controlled electronic cigarette, by which the temperature control of the internal heating element of the electronic cigarette is realized, and the heating element is dry-burned during the smokeless liquid, thereby causing the temperature to be too high.
  • the method includes the following steps:
  • the smoking switch SW When the user starts smoking, the smoking switch SW is turned on, and the control chip U1 sends a control signal to the HOT terminal according to the KEY1 signal, so that the MOS transistor M1 turns on the power of the heating wire R, and then U1 starts to read the temperature electrical signal of the FB terminal;
  • the heating wire R atomizes the smoke liquid.
  • the temperature of the heating wire R is relatively stable, and the resistance value thereof does not change substantially.
  • the temperature change rate of the chip U1 reading FB end is lower than that. The rate of temperature change, the control signal sent by U1 at the HOT end does not change, and can be smoked normally;
  • the surface of the heating wire R is dry and the temperature rises sharply. Since the heating wire R is a heat sensitive material having a positive temperature coefficient, the resistance of the heating wire is rapidly increased. At this time, the temperature change rate of the chip U1 reading FB terminal is higher than the set temperature change rate, and the chip U1 controls the HOT terminal to cut off the power output of the MOS tube M1 to the heating wire R, so that smoking cannot be performed, and the temperature of the heating wire R starts to decrease. ;
  • the U1 detects the FB end even if the user turns on the power again after turning on the smoking switch SW. The rate of temperature change is still higher than the set rate of temperature change and the power is quickly turned off;
  • the circuit of the chip U1, the transistor Q4, and the MOS transistor M1 is connected to detect the resistance value of the heating element and its lead, that is, the resistance R, and the temperature change is detected by the change of the resistance value. Therefore, the present invention can well realize the temperature control of the internal heating element of the electronic cigarette, and can well prevent the problem that the heating element is dry and the temperature is too high during the smokeless liquid; and the circuit is simple and does not affect the electronic cigarette.
  • the influence of the volume composition is very suitable for the function of protecting the human health and the electronic cigarette inside the electronic cigarette.
  • the temperature control method of the present invention limits the temperature of the heating element below the threshold without affecting Prevent the temperature of the heating element from being too high while using it normally.
  • FIG. 3 is a schematic structural view of a temperature-controlled electronic cigarette according to the present invention.
  • FIG. 4 is a circuit schematic diagram of a temperature-controlled electronic cigarette of the present invention.
  • Figure 5 is a temperature change table of the temperature-controlled electronic cigarette heating wire of the present invention.
  • Figure 6 is a graph showing the temperature change of the temperature-controlled electronic cigarette heating wire of the present invention.
  • Figure 7 is a comparison table of resistance changes of the heating wire and the conventional heating wire of the present invention.
  • Figure 8 is a graph showing the comparison of the resistance changes of the heating wire and the conventional heating wire of the present invention.
  • FIG. 9 is a flow chart of a temperature control method for a temperature-controlled electronic cigarette according to the present invention.
  • the invention discloses a temperature-controlled electronic cigarette.
  • the temperature-controlled electronic cigarette comprises a casing 10, a liquid storage device 101 housed in the casing 10, an atomizing component (not shown), and a power source. 102, and a circuit control board 103 with a smoking switch SW, wherein the atomizing assembly comprises a heating wire and a lead thereof (the heating wire and the lead wire are integrally formed in FIG. 3, reference numeral 20), and the atomizing assembly further includes a storage unit
  • the liquid guiding material in the liquid device is exported, and the heating element is a heating wire that is in close contact with the liquid guiding member.
  • the heating wire of the heating wire and the lead wire 20 is made of a heat sensitive material whose resistance value changes with temperature and changes in a certain proportion.
  • the circuit control board 103 includes a power management module 104, and the power management module 104 is When the smoking switch SW is turned on, the temperature represented by the heating wire can be continuously detected to determine the temperature represented by the heating switch SW, and a corresponding control signal is issued to control the on and off of the heating wire and the power source.
  • FIG. 4 the heating wire shown in FIG. 3 is the resistor R in FIG. 4, which is collectively referred to as a heating wire R for convenience of understanding and explanation.
  • the power management module 104 further includes a chip U1, a transistor Q4, a MOS transistor M1, a resistor R3, a resistor R5, and a resistor R6, wherein:
  • the chip U1 has a plurality of pins. As can be seen in FIG. 4, the chip U1 has a total of 16 pins, which are sequentially referred to as first to sixteenth pins in order, and the first pin is a switch.
  • the signal KEY1 terminal and the fourth pin are the power signal BT+ terminal, the ninth pin is the control signal HOT terminal, the thirteenth pin is the ground terminal, and the sixteenth pin is the detection signal FB terminal;
  • One end of the smoking switch SW is grounded, and the other end is connected to the KEY1 end;
  • resistor R3 One end of the resistor R3 is connected to the HOT end, and the other end is connected to the base of the transistor Q4; the emitter of the transistor Q4 is grounded, and a resistor R4 is disposed between the base and the emitter.
  • the collector of the transistor Q4 is connected to the gate of the MOS transistor M1 and one end of the resistor R5, and the other end of the resistor R5 is commonly connected to the source of the MOS transistor M1 to the BT+ terminal;
  • the drain of the MOS transistor is the F+ terminal, one end of the heating wire R is connected to the F+ terminal, the other end is grounded, one end of the resistor R6 is grounded, and the other end is connected to the drain of the MOS tube to the FB. end.
  • the power management module further includes a resistor R7 and a capacitor C1.
  • One end of the resistor R7 is connected to the FB end, the other end is connected to one end of the capacitor C1 and grounded, and the other end of the capacitor C1 is connected to the BT+ end.
  • the power management module further includes resistors R1, R2, LEDs D1, D2, the chip U1 further has a fifth pin and a sixth pin, and the fifth pin is connected to the resistor R1.
  • One end of the resistor R1 is connected to one end of the light emitting diode D1
  • the sixth pin is connected to one end of the resistor R2
  • the other end of the resistor R2 is connected to one end of the light emitting diode D2, the light emitting diode
  • the other end of the D1 and the other end of the LED D2 are grounded; when the power management module detects the heating wire normal temperature signal, the U1 fifth pin is energized to cause the D1 to illuminate to indicate a normal smoking state, when When the power management module detects the abnormal temperature signal of the heating wire R and cuts off the power supply of the heating wire R, the U1 sixth pin is energized to cause the D2 to indicate the electronic cigarette dry burning fault state.
  • the method for controlling the temperature of the electronic cigarette includes the following steps:
  • the smoking switch SW When the user starts smoking, the smoking switch SW is turned on, and the control chip U1 sends a control signal to the HOT terminal according to the KEY1 signal, so that the MOS transistor M1 turns on the power of the heating wire R, and then U1 starts to read the temperature electrical signal of the FB terminal.
  • the diode D1 When the diode D1 emits light;
  • the heating wire R atomizes the smoke liquid.
  • the temperature of the heating wire R is relatively stable, and the resistance value thereof does not change substantially.
  • the temperature electric signal of the chip U1 reading the FB end does not change.
  • the control signal sent by U1 at the HOT terminal does not change, and can be smoked normally.
  • the diode D1 continues to emit light to indicate a normal state. Referring to FIG. 5, the temperature of the surface of the heating wire R during normal smoking, the temperature of the surface of the heating wire R rises slowly with the smoking time, and the temperature of the surface of the heating wire R is 141 ° C at the 8th minute; As shown in Fig. 8, at this time, the resistance of the heating wire R is substantially constant, and the resistance of the heating wire R of the present invention is increased from 2.85 ⁇ to only 2.9 ⁇ .
  • the heating wire R is a heat sensitive material having a positive temperature coefficient, refer to FIG. 7 and FIG. 8, the resistance of the heating wire quickly becomes larger.
  • the threshold temperature of the heating wire R is set to 210 ° C, and the resistance value of the heating wire R has been increased to 3.05 ⁇ .
  • the temperature electric signal of the chip U1 reads the FB end changes, and the chip U1 controls the HOT.
  • the U1 detects the temperature of the FB end even if the user turns on the power again after turning on the smoking switch SW. The signal is still abnormal and the power is cut off quickly, and the diode D2 illuminates to indicate the fault condition.
  • the heating wire R When the temperature of the heating wire R drops below the set threshold of 210 ° C and the smoke liquid is added, the heating wire R returns to the normal resistance value.
  • U1 turns on the heating wire power supply, and the heating wire normally atomizes the liquid smoke.
  • U1 detects that the temperature electrical signal of the FB terminal is normal, the power supply remains operative, and the diode D1 illuminates to indicate the normal state.
  • Another temperature control method is: on the basis of the above method, after U1 detects the temperature electrical signal at the FB end, the comparison judgment is not performed according to the set temperature threshold 210 ° C, but is set according to the setting.
  • the temperature change rate is determined, for example, the temperature change rate is set to 40 ° C / sec. When the temperature change rate exceeds this value, U1 will cut off the power output of the MOS tube M1 to the heating wire R, and smoking cannot be performed.
  • the heating wire R is a conventional heating wire, and the lead material at both ends of the heating wire is changed to a heat sensitive material whose resistance value changes with temperature and changes proportionally. Since the lead wire is connected to the heating wire, the temperature of the heating wire can be quickly transmitted to the lead wire, that is, the lead wire can sense the temperature of the heating wire, so that the wire using the heat-sensitive resistor can replace the heating wire having the heat-sensitive resistance of the previous embodiment.
  • the materials of the heating wire R and the lead thereof are changed to a heat sensitive material whose resistance value changes with temperature and changes in a proportional ratio.
  • the turning on and off of the smoking switch SW can be manually controlled.
  • the switch button is pressed, the smoking switch SW is turned on, the switch button is pressed again, and the smoking switch SW is pressed.
  • Disconnected; it can also be implemented by means of a built-in pressure sensor inside the electronic cigarette.
  • the pressure sensor detects the pressure change inside the electronic cigarette to automatically control the opening and closing of the smoking switch SW.
  • the on/off of the smoking switch SW of the present invention can also be implemented by other means, and need not be described here.
  • the above-mentioned circuit structure and temperature control method of the invention can well realize the control of the temperature of the heating wire R in the electronic cigarette, and can well prevent the heating wire R from being burnt when the atomizing component is smoked, and the temperature is too high to burn out the electron.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Control Of Resistance Heating (AREA)
  • Control Of Temperature (AREA)

Abstract

一种温控电子烟及其温度控制方法，温控电子烟包括壳体（10）、装于壳体（10）内的储液装置（101）、雾化组件、电源（102）、以及带有吸烟开关的电路控制板（103），雾化组件包括发热体及其引线，该发热体及其引线的材质为阻值可随温度变化并且成一定比例变化的热敏性材料，电路控制板（103）包括电源管理模块（104），该电源管理模块（104）在吸烟开关接通时可通过连续检测所述发热体及其引线的阻值来判断其所代表的温度，并发出相应控制信号以切断发热体及其引用的电源（102），能实现电子烟温度控制，防止电子烟在无烟液或烟液不足时发热体干烧而导致有害气体被吸入人体发生危害人体健康的问题。

Description

温控电子烟及其温度控制方法 技术领域
本发明涉及电子烟技术领域，更具体的说，本发明涉及一种温控电子烟以及该温控电子烟的温度控制方法。
 背景技术
电子烟通常是将烟液经过雾化器的加热雾化而发出烟雾供吸烟者使用，随着人们对身体健康的关注度上升，人们都意识到了烟草对于人们身体的危害，因此，电子烟逐渐代替香烟得到广泛使用。
现有的电子烟，在烟液用完后都需要手动添加烟液或更换储液装置，才能够继续使用，当烟液用完或余量很少时，如果不添加烟液或不更换储液装置就继续使用，则不仅可能会烧坏电子烟，造成电子烟报废，而且会使电子烟在无烟液或烟液不足时，发热体极易发生干烧而导致有害气体及焦味物质被吸入人体发生危害人体健康的的问题。参照图1、图2所示，为常规的电子烟分别在正常吸烟及无烟液吸烟时发热丝表面的温度随时间变化的表格与曲线图，在图中可以看出，当无烟液时，发热丝表面的温度会急剧上升，易烧坏电子烟及危害人体健康。
 技术问题
本发明的目的在于为克服上述技术的不足而提供一种温控电子烟，该温控电子烟可实现对发热体及其引线温度的监控，对电子烟实现防干烧保护的功能。
 技术解决方案
本发明的技术方案是这样实现的，一种温控电子烟，包括壳体、套装于壳体内的储液装置、雾化组件、电源、以及带有吸烟开关SW的电路控制板，其改进之处在于：所述雾化组件包括一发热体及其引线，该发热体及其引线两者或两者之一的材质为阻值可随温度变化并且成一定比例变化的热敏性材料，所述电路控制板包括电源管理模块，该电源管理模块在吸烟开关SW接通时可通过连续检测所述发热体及其引线的阻值来判断其所代表的温度，并发出相应控制信号以控制发热体及其引线与电源的通断。
优选地，所述电源管理模块包括一芯片U1、三极管Q4、MOS管M1、电阻R3、电阻R5、电阻R6，其中
所述芯片U1具有多个引脚，包括第一引脚为开关信号KEY1端、第四引脚为电源信号BT+端、第九引脚为控制信号HOT端、第十三引脚为接地端、第十六引脚为检测信号FB端；
所述吸烟开关SW的一端接地，另一端则连接在所述KEY1端上；
所述电阻R3的一端连接在所述HOT端上，另一端连接至所述三极管Q4的基极上；所述三极管Q4的发射极接地，且基极与发射极之间设有电阻R4，所述三极管Q4的集电极分别连接至所述MOS管M1的栅极和电阻R5的一端，所述电阻R5的另一端与所述MOS管M1的源极共同连接至所述BT+端；
所述MOS管的漏极即为F+端，所述发热体及其引线的一端连接在F+端上，另一端接地；所述电阻R6的一端接地，另一端与所述MOS管的漏极共同连接至所述FB端。
优选地，所述电源管理模块还包括电阻R7、电容C1，所述电阻R7一端连接至所述FB端，另一端与所述电容C1一端连接并接地，所述电容C1的另一端连接在BT+端上。
优选地，所述电源管理模块还包括电阻R1、R2、发光二极管D1、D2，所述芯片U1上还具有第五引脚和第六引脚，所述第五引脚连接至电阻R1的一端，所述电阻R1的另一端连接至发光二极管D1的一端,所述第六引脚连接至所述电阻R2的一端，电阻R2的另一端连接至发光二极管D2的一端，所述发光二极管D1的另一端和所述发光二极管D2的另一端均接地；当所述电源管理模块检测到发热体及其引线正常温度信号时，所述U1第五引脚通电使D1发光指示正常吸烟状态，当所述电源管理模块检测到发热体及其引线不正常温度信号并切断发热体及其引线的电源时，所述U1第六引脚通电使D2发光指示电子烟干烧故障状态。
优选地，所述发热体及其引线两者或两者之一的材质为具有正温度系数的热敏性材料。
优选地，所述雾化组件还包括将储液装置里的烟液输导出来的导液件，所述发热体为紧贴于导液件上的发热丝。
本发明还公开了一种温控电子烟的温度控制方法，通过该控制方法实现对电子烟内部发热体的温度控制，防止了在无烟液时发热体干烧而导致温度过高的问题，具体的，该方法包括以下的步骤：
A、用户在没有吸烟时，吸烟开关SW断开，电源切断，整个电路控制板断电不工作；
B、用户开始吸烟时，接通吸烟开关SW，控制芯片U1根据KEY1信号在HOT端发出控制信号，使得MOS管M1接通发热丝R的电源，然后U1开始读取FB端的温度电信号；
C、雾化组件内有烟液时，发热丝R则雾化烟液，此过程中发热丝R的温度较为稳定，其阻值基本不变化，芯片U1读取FB端的温度变化率没有变化，U1在HOT端发出的控制信号不变化，可以正常吸烟；
D、雾化组件内无烟液或者烟液稀少时，发热丝R表面干烧，温度急剧上升，由于发热丝R采用的是具有正温度系数的热敏性材料，发热丝的阻值迅速变大，此时芯片U1读取FB端的温度电信号发生变化，芯片U1控制HOT端切断MOS管M1对发热丝R的电源输出，则不能进行吸烟，发热丝R的温度则开始降低；
E、当发热丝R的温度尚未降低至设定阀值210℃或雾化组件未添加烟液时，用户即使再次吸烟因接通吸烟开关SW而接通电源后，U1检测到FB端的温度电信号仍不正常而迅速切断电源；
F、当发热丝R的温度降低至设定阀值210℃以下以及添加了烟液时，发热丝R恢复正常阻值，当用户吸烟时U1接通发热丝电源，发热丝正常雾化烟液，U1检测到FB端的温度电信号正常，电源保持可接通。
另外，本发明还公开了另一种温控电子烟的温度控制方法，通过该控制方法实现对电子烟内部发热体的温度控制，防止了在无烟液时发热体干烧而导致温度过高的问题，具体的，该方法包括以下的步骤：
A、用户在没有吸烟时，温控电子烟的吸烟开关SW断开，电源切断，整个电路控制板断电不工作；
B、用户开始吸烟时，接通吸烟开关SW，控制芯片U1根据KEY1信号在HOT端发出控制信号，使得MOS管M1接通发热丝R的电源，然后U1开始读取FB端的温度电信号；
C、雾化组件内有烟液时，发热丝R则雾化烟液，此过程中发热丝R的温度较为稳定，其阻值基本不变化，芯片U1读取FB端的温度变化率低于设定的温度变化率，U1在HOT端发出的控制信号不变化，可以正常吸烟；
D、雾化组件内无烟液或者烟液稀少时，发热丝R表面干烧，温度急剧上升，由于发热丝R采用的是具有正温度系数的热敏性材料，发热丝的阻值迅速变大，此时芯片U1读取FB端的温度变化率高于设定的温度变化率，芯片U1控制HOT端切断MOS管M1对发热丝R的电源输出，则不能进行吸烟，发热丝R的温度则开始降低；
E、当发热丝R的温度变化率尚未降低至设定的温度变化率或雾化组件未添加烟液时，用户即使再次吸烟因接通吸烟开关SW而接通电源后，U1检测到FB端的温度变化率仍高于设定的温度变化率而迅速切断电源；
F、当发热丝R的温度变化率降低至设定温度变化率以下以及添加了烟液时，发热丝R恢复正常阻值，当用户吸烟时U1接通发热丝电源，发热丝正常雾化烟液，U1检测到FB端的温度变化率正常，电源保持可接通。
 有益效果
本发明通过上述的电路的结构，通过芯片U1、三极管Q4、以及MOS管M1的电路连接结构，检测发热体及其引线即电阻R的阻值，通过阻值的变化实现其温度变化的检测，因此，本发明能够很好的实现电子烟内部发热体温度的控制，很好的防止了在无烟液时发热体干烧而导致温度过高的问题；并且其电路简单，不会对电子烟的体积构成影响，非常适用在电子烟内部，对人体健康及电子烟实现了保护的功能；另外，本发明的此种温控控制方法，将发热体的温度限定在阀值以下，在不影响正常使用的同时防止发热体的温度过高。
 附图说明
图1为现有技术中电子烟发热丝的温度变化表格；
图2为现有技术中电子烟发热丝的温度变化曲线图；
图3为本发明的温控电子烟的结构示意图；
图4为本发明的温控电子烟的电路原理图；
图5为本发明温控电子烟发热丝的温度变化表格；
图6为本发明温控电子烟发热丝的温度变化曲线图；
图7为本发明发热丝和常规发热丝的阻值变化对比表格；
图8为本发明发热丝和常规发热丝的阻值变化对比曲线图；
图9为本发明的温控电子烟的温度控制方法流程图。
 本发明的最佳实施方式
本发明揭示了一种温控电子烟，结合图3所示，该温控电子烟包括壳体10、套装于壳体10内的储液装置101、雾化组件（图中未示）、电源102、以及带有吸烟开关SW的电路控制板103，其中，雾化组件包括一发热丝及其引线(图3中发热丝与引线为一整体，标号为20)，雾化组件还包括将储液装置里的烟液输导出来的导液件，所述的发热体为紧贴于导液件上的发热丝。本实施例中，发热丝及其引线20的发热丝的材质为阻值可随温度变化并且成一定正比例变化的热敏性材料，所述电路控制板103包括电源管理模块104，该电源管理模块104在吸烟开关SW接通时可通过连续检测所述发热丝的阻值来判断其所代表的温度，并发出相应控制信号以控制发热丝与电源的通断。结合图3、图4，图3中所示的发热丝即为图4中的电阻R，为便于理解与说明，下文统一称为发热丝R。
较为详细的，参照图4所示，电源管理模块104还包括一芯片U1、三极管Q4、MOS管M1、电阻R3、电阻R5、电阻R6，其中：
所述芯片U1具有多个引脚，在图4中可以看出，芯片U1具有总共16个引脚，按照顺序标号依次称为第一引脚至第十六引脚，第一引脚为开关信号KEY1端、第四引脚为电源信号BT+端、第九引脚为控制信号HOT端、第十三引脚为接地端、第十六引脚为检测信号FB端；
所述吸烟开关SW的一端接地，另一端则连接在所述KEY1端上；
所述电阻R3的一端连接在所述HOT端上，另一端连接至所述三极管Q4的基极上；所述三极管Q4的发射极接地，且基极与发射极之间设有电阻R4，所述三极管Q4的集电极分别连接至所述MOS管M1的栅极和电阻R5的一端，所述电阻R5的另一端与所述MOS管M1的源极共同连接至所述BT+端；
所述MOS管的漏极即为F+端，发热丝R的一端连接在F+端上，另一端接地所述电阻R6的一端接地，另一端与所述MOS管的漏极共同连接至所述FB端。
另外，电源管理模块还包括电阻R7、电容C1，所述电阻R7一端连接至所述FB端，另一端与所述电容C1一端连接并接地，所述电容C1的另一端连接在BT+端上。
继续结合图4所示，电源管理模块还包括电阻R1、R2、发光二极管D1、D2，所述芯片U1上还具有第五引脚和第六引脚，所述第五引脚连接至电阻R1的一端，所述电阻R1的另一端连接至发光二极管D1的一端,所述第六引脚连接至所述电阻R2的一端，电阻R2的另一端连接至发光二极管D2的一端，所述发光二极管D1的另一端和所述发光二极管D2的另一端均接地；当所述电源管理模块检测到发热丝正常温度信号时，所述U1第五引脚通电使D1发光指示正常吸烟状态，当所述电源管理模块检测到发热丝R不正常温度信号并切断发热丝R的电源时，所述U1第六引脚通电使D2发光指示电子烟干烧故障状态。
结合上述图4所示的电路连接结构，并参照图5、图6所示，我们对本发明的此种温控电子烟的工作过程进行详细的描述，具体的，该温控电子烟的工作过程，即电子烟的温度控制方法包括以下的步骤：
A、用户在没有吸烟时，吸烟开关SW断开，电源切断，整个电路控制板断电不工作。
B、用户开始吸烟时，接通吸烟开关SW，控制芯片U1根据KEY1信号在HOT端发出控制信号，使得MOS管M1接通发热丝R的电源，然后U1开始读取FB端的温度电信号，此时二极管D1发光；
C、雾化组件内有烟液时，发热丝R则雾化烟液，此过程中发热丝R的温度较为稳定，其阻值基本不变化，芯片U1读取FB端的温度电信号没有变化，U1在HOT端发出的控制信号不变化，可以正常吸烟，二极管D1继续发光指示正常状态。可参照图5中，正常吸烟时发热丝R表面的温度，随着吸烟时间，发热丝R表面的温度缓慢上升，在第8分钟时，发热丝R表面的温度为141℃；结合图7、图8所示，此时，发热丝R的阻值基本不变，本发明的发热丝R的阻值从2.85Ω仅增加到2.9Ω。
D、雾化组件内无烟液或者烟液稀少时，发热丝R表面干烧，温度急剧上升，而本实施例由于发热丝R采用的是具有正温度系数的热敏性材料，参照图7、图8，发热丝的阻值迅速变大。在本实施例中，设定发热丝R的阀值温度为210℃，发热丝R的阻值已经增加到3.05Ω，此时，芯片U1读取FB端的温度电信号发生变化，芯片U1控制HOT端切断MOS管M1对发热丝R的电源输出，则不能进行吸烟，二极管D2发光指示故障状态，发热丝R的温度则开始降低。
E、当发热丝R的温度尚未降低至设定阀值210℃或雾化组件未添加烟液时，用户即使再次吸烟因接通吸烟开关SW而接通电源后，U1检测到FB端的温度电信号仍不正常而迅速切断电源，二极管D2发光指示故障状态。
F、当发热丝R的温度降低至设定阀值210℃以下以及添加了烟液时，发热丝R恢复正常阻值，当用户吸烟时U1接通发热丝电源，发热丝正常雾化烟液，U1检测到FB端的温度电信号正常，电源保持可接通，二极管D1发光指示正常状态。
本发明实施例的另一温度控制方法是：在上述方法的基础上，U1检测到FB端的温度电信号以后，不是按照设定的温度阀值210℃来进行比较判断，而是按照设定的温度变化率来进行判断，例如设定温度变化率为40℃/秒，当温度变化率超过此值时，U1将切断MOS管M1对发热丝R的电源输出，则不能进行吸烟。
 本发明的实施方式
本发明的另一实施例是：在上述实施例的基础上，所述发热丝R为常规发热丝，将发热丝两端的引线材质改为阻值可随温度变化并且成一定正比例变化的热敏性材料，由于引线与发热丝相连，发热丝的温度能迅速传导给引线，即引线可感应到发热丝的温度，因此采用热敏性电阻的引线可以替代前一实施例具有热敏性电阻的发热丝。
此外，本发明的另一实施例：此实施例中，在上述两个实施例的基础上，发热丝R及其引线的材质均改为阻值可随温度变化并且呈一定正比例变化的热敏性材料，采用此种方案即可替代上述两个实施例的技术方案，可以达到同等的技术效果。
在上述的步骤A和步骤B中，吸烟开关SW的接通与断开可通过手动控制，当用户需要吸烟时，按下开关按钮，吸烟开关SW接通，再次按下开关按钮，吸烟开关SW断开；也可在电子烟内部内置压力传感器的方式来实现，用户需要吸烟时，通过压力传感器检测电子烟内部的压力变化，以自动控制吸烟开关SW的通断。应当说明的是，本发明吸烟开关SW的通断也可通过其他方式实现，此处无需一一赘述。
本发明的上述电路结构及温度控制方法能够很好实现电子烟内部发热丝R温度的控制，很好地防止了在雾化组件无烟液时发热丝R干烧而导致温度过高烧坏电子烟以及导致有害气体及焦味物质被吸入人体发生危害人体健康的的问题；并且其电路结构并不复杂，不会对电子烟的体积构成影响，非常适用在电子烟内部。
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。
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Claims (8)

  1. 一种温控电子烟，包括壳体、套装于壳体内的储液装置、雾化组件、电源、以及带有吸烟开关SW的电路控制板，其特征在于：所述雾化组件包括一发热体及其引线，该发热体及其引线两者或两者之一的材质为阻值可随温度变化并且成一定比例变化的热敏性材料，所述电路控制板包括电源管理模块，该电源管理模块在吸烟开关SW接通时可通过连续检测所述发热体及其引线的阻值来判断其所代表的温度，并发出相应控制信号以控制发热体及其引线与电源的通断。
  2. 根据权利要求1所述的温控电子烟，其特征在于：所述电源管理模块还包括一芯片U1、三极管Q4、MOS管M1、电阻R3、电阻R5、电阻R6，其中 所述芯片U1具有多个引脚，包括第一引脚为开关信号KEY1端、第四引脚为电源信号BT+端、第九引脚为控制信号HOT端、第十三引脚为接地端、第十六引脚为检测信号FB端；
    所述吸烟开关SW的一端接地，另一端则连接在所述KEY1端上；
    所述电阻R3的一端连接在所述HOT端上，另一端连接至所述三极管Q4的基极上；所述三极管Q4的发射极接地，且基极与发射极之间设有电阻R4，所述三极管Q4的集电极分别连接至所述MOS管M1的栅极和电阻R5的一端，所述电阻R5的另一端与所述MOS管M1的源极共同连接至所述BT+端；
    所述MOS管的漏极即为F+端，所述发热体及其引线的一端连接在F+端上，另一端接地；所述电阻R6的一端接地，另一端与所述MOS管的漏极共同连接至所述FB端。
  3. 根据权利要求2所述的温控电子烟，其特征在于：所述电源管理模块还包括电阻R7、电容C1，所述电阻R7一端连接至所述FB端，另一端与所述电容C1一端连接并接地，所述电容C1的另一端连接在BT+端上。
  4. 根据权利要求3所述的温控电子烟，其特征在于：所述电源管理模块还包括电阻R1、R2、发光二极管D1、D2，所述芯片U1上还具有第五引脚和第六引脚，所述第五引脚连接至电阻R1的一端，所述电阻R1的另一端连接至发光二极管D1的一端,所述第六引脚连接至所述电阻R2的一端，电阻R2的另一端连接至发光二极管D2的一端，所述发光二极管D1的另一端和所述发光二极管D2的另一端均接地；当所述电源管理模块检测到发热体及其引线正常温度信号时，所述U1第五引脚通电使D1发光指示正常吸烟状态，当所述电源管理模块检测到发热体及其引线不正常温度信号并切断发热体及其引线的电源时，所述U1第六引脚通电使D2发光指示电子烟干烧故障状态。
  5. 根据权利要求1-4所述的任一温控电子烟，其特征在于：所述发热体及其引线两者或两者之一的材质为具有正温度系数的热敏性材料。
  6. 根据权利要求5所述的温控电子烟，其特征在于：所述雾化组件还包括将储液装置里的烟液输导出来的导液件，所述发热体为紧贴于导液件上的发热丝。
  7. 一种温控电子烟的温度控制方法，其特征在于：该方法包括以下的步骤：
    A、用户在没有吸烟时，温控电子烟的吸烟开关SW断开，电源切断，整个电路控制板断电不工作；
    B、用户开始吸烟时，接通吸烟开关SW，控制芯片U1根据KEY1信号在HOT端发出控制信号，使得MOS管M1接通发热丝R的电源，然后U1开始读取FB端的温度电信号；
    C、雾化组件内有烟液时，发热丝R则雾化烟液，此过程中发热丝R的温度较为稳定，其阻值基本不变化，芯片U1读取FB端的温度电信号没有变化，U1在HOT端发出的控制信号不变化，可以正常吸烟；
    D、雾化组件内无烟液或者烟液稀少时，发热丝R表面干烧，温度急剧上升，由于发热丝R采用的是具有正温度系数的热敏性材料，发热丝的阻值迅速变大，此时芯片U1读取FB端的温度电信号发生变化，芯片U1控制HOT端切断MOS管M1对发热丝R的电源输出，则不能进行吸烟，发热丝R的温度则开始降低；
    E、当发热丝R的温度尚未降低至设定阀值210℃或雾化组件未添加烟液时，用户即使再次吸烟因接通吸烟开关SW而接通电源后，U1检测到FB端的温度电信号仍不正常而迅速切断电源；
    F、当发热丝R的温度降低至设定阀值210℃以下以及添加了烟液时，发热丝R恢复正常阻值，当用户吸烟时U1接通发热丝电源，发热丝正常雾化烟液，U1检测到FB端的温度电信号正常，电源保持可接通。
  8. 一种温控电子烟的温度控制方法，其特征在于：该方法包括以下的步骤：
    A、用户在没有吸烟时，温控电子烟的吸烟开关SW断开，电源切断，整个电路控制板断电不工作；
    B、用户开始吸烟时，接通吸烟开关SW，控制芯片U1根据KEY1信号在HOT端发出控制信号，使得MOS管M1接通发热丝R的电源，然后U1开始读取FB端的温度电信号；
    C、雾化组件内有烟液时，发热丝R则雾化烟液，此过程中发热丝R的温度较为稳定，其阻值基本不变化，芯片U1读取FB端的温度变化率低于设定的温度变化率，U1在HOT端发出的控制信号不变化，可以正常吸烟；
    D、雾化组件内无烟液或者烟液稀少时，发热丝R表面干烧，温度急剧上升，由于发热丝R采用的是具有正温度系数的热敏性材料，发热丝的阻值迅速变大，此时芯片U1读取FB端的温度变化率高于设定的温度变化率，芯片U1控制HOT端切断MOS管M1对发热丝R的电源输出，则不能进行吸烟，发热丝R的温度则开始降低；
    E、当发热丝R的温度变化率尚未降低至设定的温度变化率或雾化组件未添加烟液时，用户即使再次吸烟因接通吸烟开关SW而接通电源后，U1检测到FB端的温度变化率仍高于设定的温度变化率而迅速切断电源；
    F、当发热丝R的温度变化率降低至设定温度变化率以下以及添加了烟液时，发热丝R恢复正常阻值，当用户吸烟时U1接通发热丝电源，发热丝正常雾化烟液，U1检测到FB端的温度变化率正常，电源保持可接通。
PCT/CN2015/088819 2014-10-24 2015-09-02 温控电子烟及其温度控制方法 Ceased WO2016062167A1 (zh)

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