WO2016062168A1 - Cigarette électronique à régulation de température et prévention de combustion à sec et son procédé de régulation de température - Google Patents

Cigarette électronique à régulation de température et prévention de combustion à sec et son procédé de régulation de température Download PDF

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Publication number
WO2016062168A1
WO2016062168A1 PCT/CN2015/088821 CN2015088821W WO2016062168A1 WO 2016062168 A1 WO2016062168 A1 WO 2016062168A1 CN 2015088821 W CN2015088821 W CN 2015088821W WO 2016062168 A1 WO2016062168 A1 WO 2016062168A1
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Prior art keywords
temperature
heating element
electronic cigarette
resistor
signal
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PCT/CN2015/088821
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English (en)
Chinese (zh)
Inventor
林光榕
郑贤彬
刘宁生
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林光榕
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Publication of WO2016062168A1 publication Critical patent/WO2016062168A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature

Definitions

  • the invention relates to the field of electronic cigarette technology, in particular to a temperature-controlled anti-dry electronic cigarette and a temperature control method thereof.
  • the existing electronic cigarette generally comprises a suction housing and a liquid storage device, an atomization assembly, a power supply and a circuit control board which are arranged in the housing, and no anti-dry protection unit is provided.
  • the existing electronic cigarettes after the liquid smoke is used up, it is necessary to manually add the liquid smoke or replace the liquid storage device, so that the use can continue. When the liquid smoke in the liquid storage device is used up, the user does not add the liquid liquid or replace the liquid storage in time.
  • the circuit controlled by the circuit board continues to work, so that the heating unit in the atomizing assembly is dry-burned due to a sudden increase in temperature due to lack of smoke liquid, thereby generating harmful gas and burnt smell to be inhaled into the human body, which is harmful.
  • Human health, in addition to the rapid heat generated to the rest of the electronic cigarette is also easy to burn electronic cigarettes or burn human skin.
  • the object of the present invention is to provide a temperature-controlled anti-dry electronic cigarette with anti-dry protection function and a temperature control method thereof, so that the smoke liquid in the electronic cigarette liquid storage device is used up and the user does not dry when continuing to smoke. Burning phenomenon.
  • the technical solution of the present invention is the temperature-controlled anti-dry electronic cigarette, comprising a casing and a liquid storage device disposed in the casing, an atomization component provided with an atomization cavity and a heating body, a power source, and a cigarette switch
  • the circuit control board is special in that the circuit control board is provided with a power management module and a temperature sensing unit, and the temperature sensing unit includes a temperature sensor that senses a temperature signal in the atomization chamber and converts it into The temperature electrical signal is transmitted to the power management module, and the power management module determines and processes the control signal to generate a control electrical signal to control the on and off of the heating element and the power source.
  • the temperature sensor is a thermal resistance type temperature sensor.
  • the temperature sensor is a thermocouple type temperature sensor.
  • the temperature sensing unit is integrated in the power management module.
  • the power management module comprises 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 positive BT+ terminal, 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+ end, and one end of the heating element R is connected to the F+ end, and the other end is grounded;
  • One end of the resistor R6 is grounded, and the other end is connected to the drain F+ end of the MOS transistor.
  • the temperature sensing unit further includes a resistor R8 and a capacitor C2.
  • the resistor R8 is connected in series with the capacitor C2, one end is connected to the FB end, and the other end is grounded; the temperature sensor R9 is connected to the BT+ end at one end. The other end is 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 light emitting diode D2 are grounded; when the power management module detects the normal temperature signal of the atomizing chamber, the U1 fifth pin is energized to cause the D1 to emit a light indicating a normal smoking state, when the power source When the management module detects the abnormal temperature signal of the atomization chamber and cuts off the power supply of the heating element R, the U1 sixth pin is energized to cause the D2 to indicate the electronic cigarette dry burning failure state.
  • the atomization assembly further comprises a liquid guiding member for exporting the liquid smoke in the liquid storage device, wherein the heating element is a heating wire that is in close contact with the liquid guiding member.
  • the temperature sensor is fixedly disposed in the atomization chamber.
  • the liquid storage device and the atomizing component are set in the atomizing rod
  • the power source and the circuit control board are set in the battery rod
  • the temperature sensor is disposed at one end of the battery rod and protrudes the end surface, when the atomizing rod and the atomizing rod When the battery rod is in place, the temperature sensor projects into the atomization chamber.
  • the invention discloses a temperature control method for temperature-controlled anti-dry burning electronic cigarette, and the temperature control of the internal heating element R of the electronic cigarette is realized by the control method, and the heating of the heating element R during the smokeless liquid is prevented, resulting in temperature overheating High problem, specifically, 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 at the HOT end according to the KEY1 signal, so that the MOS tube M1 turns on the power of the heating element R, and the temperature sensor senses the temperature of the atomizing chamber, U1 starts. Reading the temperature electrical signal of the FB terminal;
  • the heating element R atomizes the smoke liquid, and the temperature of the heating element R to the atomization chamber is relatively stable, and the temperature sensor can receive the heat generation body in the atomization chamber.
  • the relatively stable temperature signal, the chip U1 reads the temperature electric signal of the FB end does not change, the control signal sent by the U1 at the HOT end does not change, the power supply of the heating element R continues to be connected, and can normally smoke;
  • the heating element R When the smokeless liquid or the smoke liquid in the atomization assembly is scarce, the heating element R is dry, the temperature in the atomization chamber rises sharply, and the temperature signal sent by the temperature sensor to the heating element in the atomization chamber is also sharply strengthened.
  • the chip U1 reads the temperature electrical signal of the FB terminal and judges that it changes. The chip U1 controls the HOT terminal to cut off the power output of the MOS tube M1 to the heating element R, and thus cannot When smoking is performed, the temperature of the atomization chamber begins to decrease;
  • the U1 detects the temperature of the FB end through the temperature sensor even if the user turns on the power again after turning on the smoking switch SW. The electrical signal is still abnormal and the power is cut off quickly;
  • the atomization chamber When the temperature of the atomization chamber drops below the set threshold and the smoke liquid is added, the atomization chamber returns to the normal temperature.
  • U1 turns on the heating element power supply, and the heating element normally atomizes the smoke liquid, U1 passes The temperature sensor detects that the temperature electrical signal at the FB terminal is normal and the power supply remains on.
  • the invention discloses a temperature control method for temperature-controlled anti-drying electronic cigarette, and the temperature control of the internal heating element R of the electronic cigarette is realized by the control method, and the temperature of the heating element R is dry and prevented during the smokeless liquid. Too high a problem, specifically, 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 at the HOT end according to the KEY1 signal, so that the MOS tube M1 turns on the power of the heating element R, and the temperature sensor senses the temperature of the atomizing chamber, U1 starts. Reading the temperature electrical signal of the FB terminal;
  • the heating element R atomizes the smoke liquid, and the temperature of the heating element R to the atomization chamber is relatively stable.
  • the temperature sensor can receive the stable heat generated by the heating body.
  • the temperature signal, the temperature change rate of the chip U1 reading FB end is lower than the set temperature change rate, the control signal sent by U1 at the HOT end does not change, and the power supply of the heating element R continues to be turned on, and can normally smoke;
  • the heating element R When the smokeless liquid or the smoke liquid in the atomization unit is scarce, the heating element R is dry, the temperature of the surface of the heating element rises sharply, and the temperature signal sent by the temperature sensor to the heating element in the atomizing chamber is also sharply strengthened.
  • the temperature change rate of the atomization chamber exceeds the temperature change rate set by U1, the chip U1 controls the HOT terminal to cut off the power output of the MOS tube M1 to the heating element R, and smoking cannot be performed, and the temperature of the atomization chamber starts to decrease;
  • the U1 detects the FB through the temperature sensor even if the user turns on the power again after turning on the smoking switch SW.
  • the temperature change rate of the terminal is still higher than the set temperature change rate and the power supply is quickly cut off;
  • the atomization chamber returns to the normal temperature.
  • U1 turns on the heating body power supply, and the heating element normally atomizes the liquid smoke.
  • U1 detects that the temperature change rate of the FB terminal is normal through the temperature sensor, and the power supply remains on.
  • the invention has the advantages of the temperature-controlled anti-dry electronic cigarette and the temperature control method thereof: the electronic cigarette is provided with a temperature sensing unit to sense the temperature signal in the atomization chamber, and the heating element in the atomization assembly continues to work due to the lack of smoke liquid When the temperature rises sharply, the power management module can make a judgment and cut off the power supply in time to prevent the heating body from being dry-burned, thereby preventing harmful gas and burnt smell from being inhaled into the human body and endangering human health, and preventing the electronic cigarette from being burnt or burned. human body.
  • FIG. 1 is a schematic view showing the structure of an embodiment of the present invention.
  • Figure 2 is a schematic view showing the structure of another embodiment of the present invention.
  • FIG. 3 is a circuit diagram of a power management module according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a circuit of a temperature sensing unit according to an embodiment of the present invention.
  • Fig. 5 is a graph showing changes in temperature of a heating wire according to an embodiment of the present invention.
  • a temperature-controlled anti-dry electronic cigarette includes a housing 1 and a liquid storage device 2 disposed in the housing 1 , and is provided with atomization chamber 3 and atomization of the heating wire 4 .
  • the component, the power supply 5 and the circuit control board 6 with the smoking switch SW, the circuit control board 6 is provided with a power management module 7, a temperature sensing unit 8, and the temperature sensing unit 8 includes a temperature sensor 81 disposed in the atomization chamber 3.
  • the temperature sensing unit 8 senses the temperature signal in the atomization chamber 3 and converts it into a temperature electrical signal and transmits it to the power management module 7.
  • the power management module 7 determines and processes the control to generate a control electrical signal to control the heating wire 4 and
  • the power supply 5 is turned on and off.
  • the temperature sensor 81 is a resistive temperature sensor.
  • thermocouple type temperature sensor can be a thermocouple type temperature sensor.
  • temperature sensing unit 8 described above can be integrated into the power management module 7.
  • the temperature-controlled anti-dry electronic cigarette of the embodiment of the present invention the smoking switch SW is disposed in the power management module 7, and the power management module 7 further includes a chip U1 and a triode. Q4, MOS transistor M1, resistor R3, resistor R5, 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 positive BT+ terminal, 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, 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 provided between the base and the emitter, and the transistor Q4 is The collector is respectively 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 tube is the F+ end, and one end of the heating wire R is connected to the F+ end, and the other end is grounded;
  • One end of the resistor R6 is grounded, and the other end is connected to the drain F+ end of the MOS transistor.
  • the temperature sensing unit further includes a resistor R8 and a capacitor C2. After the resistor R8 is connected in series with the capacitor C2, one end is connected to the FB end, and the other end is grounded. One end of the temperature sensor R9 is connected to the BT+ end, and the other end is connected 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+. On the end.
  • the power management module further includes resistors R1 and R2, and LEDs D1 and 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
  • the other end of the resistor R2 is connected to one end of the light emitting diode D2
  • the other end of the light emitting diode D1 and the light emitting diode D2 The other end is grounded; when the power management module detects the normal temperature signal of the atomizing chamber, the fifth pin of U1 is energized to make the D1 light indicate the normal smoking state, when the power management module detects the abnormal temperature signal of the atomizing chamber and cuts off the heat.
  • the sixth pin of U1 is energized to cause D2 to indicate that the electronic cigarette is dry and faulty.
  • the atomization assembly of the embodiment of the invention further comprises a liquid guiding member for discharging the liquid smoke in the liquid storage device, and the heating wire is closely attached to the liquid guiding member.
  • a temperature-controlled anti-dry electronic cigarette according to an embodiment of the present invention: the temperature sensor 81 (ie, R9) is fixedly disposed in the atomization chamber 3 .
  • a temperature-controlled anti-dry electronic cigarette according to another embodiment of the present invention: the liquid storage device 2, the atomizing component is set in the atomizing rod 9, the power source 5, and the circuit control board 6 are set in the battery In the rod 10, a temperature sensor 81 (i.e., R9) is disposed at one end of the battery rod 10, and when the atomizing rod 9 is connected to the battery rod 10, the temperature sensor 81 projects into the atomizing chamber 3.
  • a temperature sensor 81 i.e., R9
  • the temperature control method 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 at the HOT end according to the KEY1 signal, so that the MOS tube M1 turns on the power of the heating wire R, and the temperature sensor 81 (ie, R9) senses the atomization.
  • the temperature of the cavity 3, U1 begins to read the temperature electrical signal of the FB terminal, at which time the diode D1 emits light;
  • the heating wire R atomizes the smoke liquid, and the temperature of the heating wire to the atomization chamber 3 is relatively stable, and the temperature sensor 81 can sense the stability of the atomization chamber 3 in the process.
  • the temperature signal, the chip U1 reads the temperature electrical signal of the FB terminal does not change, the control signal sent by the U1 at the HOT terminal does not change, can normally smoke, and the diode D1 continues to emit light to indicate a normal state;
  • the heating wire R is dry and the temperature of the surface thereof rises sharply, and the temperature signal sensed by the temperature sensor 81 in the atomization chamber is also sharply strengthened.
  • the threshold temperature in the atomization chamber 3 is set to 210 ° C.
  • the chip U1 reads the temperature electrical signal of the FB terminal and judges that it changes.
  • the chip U1 controls the HOT terminal to cut off the MOS tube M1 to the heating wire R.
  • the user detects that the U1 is detected by the temperature sensor 81 even if the user turns on the power again after turning on the smoking switch SW.
  • the temperature electrical signal at the FB terminal is still abnormal and the power supply is quickly cut off, and the diode D2 emits light to indicate a fault state;
  • 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 temperature.
  • the U1 turns on the heating wire R and the power source, and the heating wire is normally atomized. Liquid, U1 detects that the temperature electrical signal of the FB terminal is normal through the temperature sensor, the power supply remains on, and the diode D1 emits light 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 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, and the switch is pressed again.
  • the button and the smoking switch SW are disconnected; the pressure sensor can be built in 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 herein.
  • the above-mentioned circuit structure and temperature control method of the invention can well realize the control of the temperature of the heating wire inside the electronic cigarette, and the dry burning phenomenon of the heating wire in the smokeless liquid of the atomizing component is well prevented, and the overheating of the temperature is solved.
  • E-cigarettes and problems that cause harmful gases and burnt substances to be inhaled into the human body and endanger human health can well realize the control of the temperature of the heating wire inside the electronic cigarette, and the dry burning phenomenon of the heating wire in the smokeless liquid of the atomizing component, and the overheating of the temperature is solved.

Abstract

La présente invention concerne une cigarette électronique à régulation de température et prévention de combustion à sec, ainsi que son procédé de régulation de température, la cigarette électronique comportant un boîtier (1) et un dispositif de stockage de liquide (2) inséré à l'intérieur du boîtier (1), un ensemble d'atomisation pourvu d'une cavité d'atomisation (3) et d'un corps émetteur de chaleur (4), une source d'alimentation (5) et une carte de commande de circuit (6) pourvue d'un interrupteur d'inhalation de vapeur. La carte de commande de circuit (6) est pourvue d'un module de gestion de source d'alimentation (7) et d'une unité de détection de température (8), l'unité de détection de température (8) comportant un capteur de température (81) et pouvant détecter un signal de température à l'intérieur de la cavité d'atomisation (3) et convertir le signal de température en un signal électrique de température destiné à être envoyé au module de gestion de source d'alimentation (7),celui-ci (7) jugeant et traitant le signal électrique de température, puis générant un signal électrique de commande pour commander la connexion/déconnexion du corps émetteur de chaleur (4) et de la source d'alimentation (5). La cigarette électronique à régulation de température et prévention de combustion à sec utilise le capteur de température (81) pour détecter la température à l'intérieur de la cavité d'atomisation (3), impose une régulation et offre les effets avantageux de prévenir une combustion à sec du corps émetteur de chaleur (4), à l'intérieur de l'ensemble d'atomisation, et d'empêcher que des gaz nocifs et une odeur de brûlé ne soient inhalés dans le corps et ne mettent en danger la santé corporelle.
PCT/CN2015/088821 2014-10-24 2015-09-02 Cigarette électronique à régulation de température et prévention de combustion à sec et son procédé de régulation de température WO2016062168A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410574214.XA CN104319732B (zh) 2014-10-24 2014-10-24 温控防干烧电子烟及其温度控制方法
CN201410574214.X 2014-10-24

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