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WO2016172921A1 - Cigarette électronique et procédé de régulation de température pour élément chauffant associé - Google Patents

Cigarette électronique et procédé de régulation de température pour élément chauffant associé Download PDF

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Publication number
WO2016172921A1
WO2016172921A1 PCT/CN2015/077968 CN2015077968W WO2016172921A1 WO 2016172921 A1 WO2016172921 A1 WO 2016172921A1 CN 2015077968 W CN2015077968 W CN 2015077968W WO 2016172921 A1 WO2016172921 A1 WO 2016172921A1
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WIPO (PCT)
Prior art keywords
heat generating
circuit
temperature
generating component
current
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/CN2015/077968
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English (en)
Chinese (zh)
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WO2016172921A8 (fr
Inventor
向智勇
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.)
Kimree Technology Co Ltd
Original Assignee
Kimree Technology Co Ltd
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Publication date
Application filed by Kimree Technology Co Ltd filed Critical Kimree Technology Co Ltd
Priority to CN201580000077.1A priority Critical patent/CN106572703B/zh
Priority to PCT/CN2015/077968 priority patent/WO2016172921A1/fr
Publication of WO2016172921A1 publication Critical patent/WO2016172921A1/fr
Publication of WO2016172921A8 publication Critical patent/WO2016172921A8/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • A24F40/51—Arrangement of sensors
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • 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 electronic cigarette technology, in particular to an electronic cigarette and a heating element temperature control method thereof.
  • the atomizing heating wire is a heating device for atomizing the smoke oil in the electronic cigarette.
  • the battery supplies power to the atomizing heating wire, the heating wire is energized and heated, and when the temperature rises to the atomizing temperature of the smoke oil, The atomized smoke oil forms a simulated smoke, so that the user has a feeling of sucking the smoke when smoking the electronic cigarette.
  • the heating wire used for atomizing the smoke oil in the electronic cigarette mostly uses a heat-generating alloy, such as a nickel-chromium alloy, an iron-chromium-aluminum alloy, etc., and the heat-generating alloy has good heat resistance and a long service life.
  • a heat-generating alloy such as a nickel-chromium alloy, an iron-chromium-aluminum alloy, etc.
  • the heat-generating alloy has good heat resistance and a long service life.
  • the temperature rises within a certain range during continuous energization. If the temperature of the heating wire is higher than the temperature at which the oil is atomized, the oil will crack and produce The burnt taste affects the taste of smoking. Especially when the remaining amount of electronic cigarette smoke is small, the temperature on the heating wire will rise sharply, which will eventually lead to the adverse consequences of burning the electronic cigarette. Therefore, in the process of working the electronic cigarette, it is necessary to detect the temperature of the heating wire and control the heating temperature.
  • the temperature coefficient of resistance of the heat-generating alloy material used in the existing electronic cigarette is relatively low, taking the nickel-chromium alloy and the iron-chromium-aluminum alloy as an example, the temperature coefficient of resistance of the nickel-chromium alloy is 1.3 ⁇ 10 -6 /° C., iron chromium The temperature coefficient of resistance of aluminum alloy is 0.8 ⁇ 10 -6 /°C.
  • the temperature sensor is directly detected in the electronic cigarette, and the temperature change of the heating wire is directly detected by the temperature sensor, and is output to the microprocessor, so that the microprocessor determines the current temperature of the heating wire. Is it too high, and when its temperature is too high, control the supply voltage of the heating wire to maintain the temperature of the heating wire within a suitable temperature range.
  • this solution requires the addition of a temperature sensor in the electronic cigarette, which increases the volume and design complexity of the internal circuit of the electronic cigarette.
  • the electronic cigarette cannot detect the heat generated by the atomizing heating wire to know the heat.
  • the temperature change of the wire in order to control the temperature of the heating wire when the temperature is too high, there is also a temperature sensor in the electronic cigarette to detect the temperature change of the heating wire to control the temperature of the heating wire, so that the internal circuit of the electronic cigarette Technical problems with increased volume and design complexity.
  • the present invention is directed to the prior art, the electronic cigarette cannot detect the temperature change of the heating wire by detecting the resistance of the heating wire, to control the temperature of the heating wire when the temperature is too high, and to detect by setting a temperature sensor in the electronic cigarette.
  • the temperature change of the heating wire to control the temperature of the heating wire so as to increase the volume and design complexity of the internal circuit of the electronic cigarette, provides an electronic cigarette and a heating element temperature control method thereof, and realizes the heating element in the atomizer
  • the temperature is monitored and controlled, so that the temperature is not too high, and there is no need to add a temperature sensor in the electronic cigarette, and the volume and design complexity of the internal circuit of the electronic cigarette are not increased.
  • the present invention provides an electronic cigarette including a heat generating component, a power supply circuit, and a voltage adjusting circuit;
  • the heat generating component is used for atomizing the smoke oil, and the resistance value of the heat generating component becomes larger as the temperature increases;
  • the power supply circuit is configured to supply power to the heat generating component
  • the voltage adjustment circuit is configured to detect a resistance value of the heat generating component to obtain a current temperature of the heat generating component, and adjust the current temperature when the current temperature is greater than a first preset value or less than a second preset value a supply voltage of the heat generating component to maintain a heating temperature of the heat generating component within a preset temperature range;
  • the material of the heat generating component is in weight percentage, and includes:
  • the temperature coefficient of resistance of the heat generating member is 0.3 ⁇ 10 ⁇ 3 /° C. to 3 ⁇ 10 ⁇ 3 /° C.
  • the heat generating component further comprises: 2% to 3.5% of molybdenum by weight percentage.
  • the heat generating component specifically includes:
  • the heat generating component specifically includes:
  • the heat generating component specifically includes:
  • the heat generating component specifically includes:
  • the heat generating component is in the form of a filament or a sheet.
  • the heat generating component is specifically wire-shaped and has a diameter of 0.08 mm to 0.4 mm.
  • the voltage adjustment circuit includes:
  • a voltage current sampling sub-circuit for detecting a current supply voltage and a current supply current of the heat generating component
  • a microprocessor connected to the voltage current sampling sub-circuit, configured to acquire a resistance value of the heat generating component based on the current power supply voltage and a current power supply current, and obtain a current temperature of the heat generating component based on the resistance value, And issuing a control signal when the current temperature is greater than the first preset value or less than the second preset value;
  • a driving sub-circuit connected to the microprocessor, configured to adjust a power supply voltage of the heat generating component based on the control signal, so that a heat generation temperature of the heat generating component is maintained within the preset temperature range.
  • the driving sub-circuit is specifically configured to generate a first driving signal and a second driving signal based on the control signal; the voltage adjusting circuit further includes:
  • the microprocessor is further configured to determine, after acquiring the current temperature of the heat generating component, whether a current temperature of the heat generating component is greater than the first preset value or less than the second preset value, and The control signal is sent when the current temperature is greater than the first preset value or less than the second preset value; the driving sub-circuit is configured to start the oscillation switch sub-circuit starting operation based on the first driving signal Causing the oscillating switch sub-circuit to charge and store energy, while the driving sub-circuit is configured to stop the synchronous commutator circuit from operating based on the second driving signal; the driving sub-circuit is further configured to be in the oscillating After the switch sub-circuit is charged and stored, the oscillation switch sub-circuit is driven to stop according to the first driving signal, so that the oscillation switch sub-circuit is discharged to the synchronous commutator circuit, and the driving sub-circuit is further Driving the synchronous commutator circuit to start operation based on the second driving signal, so that the
  • the current supply voltage of the heat generating component is specifically: the driving sub circuit drives the oscillation switch subcircuit and the ground based on a pulse width modulation signal of a first duty ratio output by the microprocessor The voltage obtained by the synchronous commutator circuit;
  • the control signal is specifically a pulse width modulation signal of a second duty ratio output by the microprocessor, wherein the first duty ratio is different from the second duty ratio.
  • the present invention also provides a method for controlling temperature of an electronic cigarette heating element, comprising the steps of:
  • step S1 is specifically:
  • the material for the heat generating member for atomizing the tobacco oil used in the electronic cigarette of the present invention includes, by weight, 0.02% to 0.08% of carbon, 0.05% to 1% of silicon, and 1% to 2%.
  • the electronic cigarette further includes a power supply circuit for The heating element is powered when the user smokes to detect, so that the heat generating member is heated, and in the process, the resistance value of the heat generating member becomes larger as the temperature increases;
  • the electronic cigarette is further a voltage adjustment circuit for detecting a resistance value of the heat generating component to obtain a current temperature of the heat generating component, and adjusting the current temperature when the current temperature is greater than a first preset value or less than a second preset value
  • the power supply voltage of the heat generating component is such that the heat generation temperature of the heat generating component is maintained within a
  • FIG. 1 is a block diagram showing the circuit structure of a first type of electronic cigarette according to an embodiment of the present invention
  • FIG. 2a is a schematic structural view of a wire-shaped heat generating component according to an embodiment of the present invention.
  • FIG. 2b is a schematic structural view of a wire-shaped heat generating component and a smoke oil adsorbing member according to an embodiment of the present invention
  • FIG. 3 is a block diagram showing a circuit structure of a second electronic cigarette according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a microprocessor and a peripheral circuit thereof of a voltage adjustment circuit according to an embodiment of the present invention
  • FIG. 5 is a partial circuit schematic diagram of a voltage adjustment circuit according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a battery protection circuit of an electronic cigarette according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a method for controlling temperature of an electronic cigarette heating element according to an embodiment of the present invention.
  • the embodiment of the present invention provides an electronic cigarette for solving the problem that the electronic cigarette cannot detect the temperature change of the heat generating component by detecting the resistance of the heat generating component in the prior art, so as to control the temperature of the heat generating component when the temperature is too high, and A temperature sensor is arranged in the smoke to detect the temperature change of the heat generating component, so as to control the temperature of the heat generating component, so that the volume of the internal circuit of the electronic cigarette and the design complexity increase, and the heating element is detected when the heat generating component of the atomizer is heated.
  • the heating resistor is used to monitor and control its temperature, so that its temperature is not too high, and there is no need to add a temperature sensor to the electronic cigarette, and the technical effect of the volume and design complexity of the internal circuit of the electronic cigarette is not increased.
  • An embodiment of the present invention provides an electronic cigarette including a heat generating component, a power supply circuit, and a voltage adjusting circuit; the heat generating component is used for atomizing the smoke oil, and the resistance value of the heat generating component becomes larger as the temperature increases;
  • the power supply circuit is configured to supply power to the heat generating component;
  • the voltage adjusting circuit is configured to detect a resistance value of the heat generating component to obtain a current temperature of the heat generating component, and the current temperature is greater than the first preset When the value is less than the second preset value, adjusting the power supply voltage of the heat generating component to maintain the heat generation temperature of the heat generating component within a preset temperature range;
  • the heat generating component is made of a weight percentage, including : 0.02% to 0.08% carbon, 0.05% to 1% silicon, 1% to 2% manganese, 0.015% to 0.045% phosphorus, 0.01% to 0.03% sulfur, 16.5% to 20% chromium, 8.5 % to 15% nickel, and
  • a heat-generating component of a specific material is used (the constituent materials thereof include, by weight percentage, 0.02% to 0.08% carbon, 0.05% to 1% silicon, and 1% to 2% manganese). , 0.015% to 0.045% phosphorus, 0.01% to 0.03% sulfur, 16.5% to 20% chromium, 8.5% to 15% nickel, and iron), the temperature coefficient of resistance is large, so that the heating element is energized and heated In the process, the heating resistance changes significantly with the change of temperature, and the temperature change of the heating element can be obtained by obtaining the heating resistance of the heating element through the voltage adjusting circuit, and the temperature of the heating element is controlled based on the temperature change.
  • Appropriate temperature range effectively solve the problem that the electronic cigarette in the prior art cannot pass the detection of the resistance of the heating wire Knowing the temperature change of the heating wire to control the temperature of the heating wire when its temperature is too high, and detecting the temperature change of the heating wire by setting a temperature sensor in the electronic cigarette to control the temperature of the heating wire, so that the volume of the internal circuit of the electronic cigarette is
  • the technical problem of increasing design complexity is achieved by detecting the heating resistance of the heating element when the atomizing device heating element (such as heating wire) is heated, so as to monitor and control its temperature, so that the temperature is not too high, and it is not necessary Adding a temperature sensor to the electronic cigarette does not increase the technical effect of the volume and design complexity of the internal circuit of the electronic cigarette.
  • an embodiment of the present invention provides an electronic cigarette, including a heat generating component 1, a power supply circuit 2, and a voltage adjusting circuit 3;
  • the heat generating component 1 is used for atomizing the smoke oil, and the resistance value of the heat generating component 1 becomes larger as the temperature increases;
  • the power supply circuit 2 is used to supply power to the heat generating component 1;
  • the voltage adjustment circuit 3 is configured to detect the resistance value of the heat generating component 1 to obtain the current temperature of the heat generating component 1, and adjust the power supply of the heat generating component 1 when the current temperature is greater than the first preset value or less than the second preset value.
  • the voltage is such that the heat generation temperature of the heat generating component 1 is maintained within a preset temperature range; for example, the optimum temperature of the smoke oil atomization is 200 ° C to 270 ° C, when the current temperature of the heat generating component 1 is greater than 270 ° C or less than 200 ° C
  • the voltage adjusting circuit 3 adjusts the power supply voltage of the heat generating element 1 so that the heat generation temperature of the heat generating element 1 is maintained within a temperature range of 200 ° C to 270 ° C.
  • the heat generating element 1 is usually an alloy material, and it must have certain heat resistance, plasticity, weldability, toughness, and the like due to the specific use of the heat generating element 1 in the electronic cigarette.
  • Nickel is an excellent corrosion-resistant material and an important alloying element. Nickel can form austenite elements in the heating alloy. Chromium acts as an alloying element in the heating alloy, which promotes the contradictory movement inside it to favor corrosion corrosion.
  • chromium increases the electrode potential of the iron-based solid solution, chromium absorbs iron electrons to passivate iron, and nickel plays a role in the heat-generating alloy after being combined with chromium; carbon is an element that stabilizes austenite, and The degree of action is very large (about 30 times that of nickel), and the affinity of carbon and chromium is very large, forming a series of complicated carbonization with chromium.
  • the material can effectively improve the strength and corrosion resistance of the heating alloy; silicon can significantly improve the elastic limit, yield point and tensile strength of the heating alloy, and combine silicon and molybdenum and chromium to improve the corrosion resistance and oxidation resistance of the heating alloy.
  • the role of the heating alloy can also improve the heat resistance; in addition, phosphorus and sulfur are essential harmful impurities in some alloys, such as phosphorus will cause the alloy to appear "cold brittleness", sulfur will cause the alloy to appear "hot brittleness" "Because the reduction of the content of both will increase the cost of the process, usually not completely eliminated in the specific implementation process, can only reduce the content as low as possible within a certain range, or by adding other elements to alleviate the two The negative effects of manganese; manganese can weaken and eliminate the adverse effects of sulfur.
  • the effect of manganese on austenite is similar to that of nickel, but the effect of manganese is not on the formation of austenite, but on the reduction of the critical quenching rate of the heat-generating alloy. It increases the stability of austenite, inhibits the decomposition of austenite, maintains the austenite formed at high temperature to normal temperature and improves the hardenability of the alloy.
  • Gold has good wear resistance and other physical properties; Iron is an essential element of many alloys. The elements constituting the above alloys each have their roles and uses (or drawbacks). In order for the heat-generating alloy to finally achieve a specific application performance, the content of each element must satisfy a certain ratio.
  • the material of the heat-generating member 1 In weight percent, including: 0.02% to 0.08% carbon (C), 0.05% to 1% silicon (Si), 1% to 2% manganese (Mn), 0.015% to 0.045% phosphorus (P) , 0.01% to 0.03% of sulfur (S), 16.5% to 20% of chromium (Cr), 8.5% to 15% of nickel (Ni), and iron (Fe).
  • the components of the heat generating component 1 have the following conditions:
  • the heat generating component 1 specifically includes: 0.02% to 0.08% of carbon, 0.05% to 1% of silicon, 1% to 2% of manganese, 0.015% to 0.045% of phosphorus, 0.01% to 0.03% of sulfur, and 16.5%. ⁇ 18.1% of chromium, 8.5% to 15% of nickel, and iron which gives the entire heat-generating member 1 a weight percentage of 100%.
  • the heat generating component 1 specifically includes: 0.02% to 0.08% of carbon, 0.05% to 1% of silicon, 1% to 2% of manganese, 0.015% to 0.045% of phosphorus, 0.01% to 0.03% of sulfur, and 16.5%. ⁇ 20% of chromium, 10.5% to 14.5% of nickel, and iron which gives the entire heat-generating member 1 a weight percentage of 100%.
  • the heat generating component 1 further includes other materials, such as 2% to 3.5% of molybdenum (Mo), which can significantly improve the hardenability and heat strength of the alloy, prevent temper brittleness, and increase the remaining Magnetic and coercive, at this time the content of iron (Fe) can make the weight ratio of the composition as a whole 100%.
  • the heat generating component 1 includes: 0.02% to 0.08% of carbon, 0.05% to 1% of silicon, 1% to 2% of manganese, 0.015% to 0.045% of phosphorus, 0.01% to 0.03% of sulfur, and 16.5%.
  • the heat generating component 1 specifically includes: 0.02% to 0.08% of carbon, 0.05% to 1% of silicon, 1% to 2% of manganese, 0.015% to 0.045% of phosphorus, 0.01% to 0.03% of sulfur, and 16.5%.
  • the temperature coefficient of resistance of the heat generating member 1 is about 1.1 ⁇ 10 -3 / ° C.
  • the temperature coefficient of resistance of the heat generating member 1 is between 0.3 ° C 10 and 350 ° C, which is 0.3 ⁇ 10 -3 / ° C to 3 ⁇ 10 -3 / ° C, so that the heating element 1 has a significant change in the heating resistance of the heat generating element 1 during the temperature rise.
  • the heat generating element 1 obtained by the above material ratio has good heat resistance, plasticity, weldability, toughness, and the like, and the heat generating element 1 may be in the form of a filament or a sheet.
  • the diameter thereof is set to be 0.08 mm to 0.4 mm, because the toughness and hardness of the heat generating component 1 in this embodiment are better than the conventional nickel-chromium alloy and the iron-chromium-alloy alloy, and the wire is assembled.
  • the heating element 1 is used, the deformation of the heating wire does not occur, and the normal operation of the heating element 1 is preferably ensured.
  • the heat generating component 1 is a device provided with a spiral atomizing portion, and the end portion of the atomizing portion is provided with two a connecting end (11, 12) connected to the power supply module, and in combination with FIG. 2b, the atomizing portion is used for contacting the smoke adsorbing member 13 (for example, an oil absorbing cotton sleeve wound from a cotton material) to make the oil
  • the smoke adsorbing member 13 for example, an oil absorbing cotton sleeve wound from a cotton material
  • the original power supply voltage of the power supply device (such as a battery) in the power supply circuit 2 is small (for example, 4.2V), in order to be able to quickly detect after the user is detected to smoke and the battery is electrically connected to the heat generating component 1.
  • the heat generating element 1 is heated so that the temperature of the heat generating element 1 rises rapidly to the temperature water required for atomizing the smoke oil
  • the present embodiment provides a specific voltage adjustment circuit 3, which can be used in the process of boosting without causing burnt cotton (ie, the heat generation temperature of the heat generating component 1 is maintained within a preset temperature range). To provide the heating element 1 with as much heating power as possible.
  • the voltage adjustment circuit 3 includes: a voltage current sampling sub-circuit 31 for detecting the current supply voltage of the heat generating component 1 and the current supply current; and a microprocessor 32 connected to the voltage current sampling sub-circuit 31, And acquiring a resistance value of the heat generating component 1 based on the current power supply voltage and the current power supply current, and acquiring a current temperature of the heat generating component 1 based on the resistance value, and when the current temperature is greater than the first preset value Or less than the second preset value, issuing a control signal; a driving sub-circuit 33 connected to the microprocessor 32 for adjusting the power supply voltage of the heat generating component 1 based on the control signal to cause the heat of the heat generating component 1 to be generated The temperature is maintained within the preset temperature range.
  • the driving sub-circuit 33 is specifically configured to emit the first driving signal and the second driving signal based on the control signal, still refer to FIG.
  • the voltage adjusting circuit 3 further includes: an oscillation switch sub-circuit 34 connected to the driving sub-circuit 33 and a synchronous commutating sub-circuit 35, and the oscillation switching sub-circuit 34 receives and starts or stops working based on the first driving signal, and the synchronous commutator The circuit 35 receives and starts or stops the operation based on the second driving signal; the microprocessor 32 is further configured to determine whether the current temperature of the heat generating component 1 is greater than the first preset value after acquiring the current temperature of the heat generating component 1.
  • the driving sub-circuit 33 is configured to be based on the The first driving signal drives the oscillation switch sub-circuit 34 to start operation to charge the oscillation switch sub-circuit 34 while simultaneously driving the synchronous commutator based on the second driving signal The circuit 35 is stopped.
  • the driving sub-circuit 33 is further configured to drive the oscillation switch sub-circuit 34 to stop operating based on the first driving signal after the charging and switching sub-circuit 34 is charged and stored, so that the oscillation switching sub-circuit 34 is synchronously rectified.
  • the sub-circuit 35 is discharged while simultaneously driving the synchronous commutator circuit 3 based on the second drive signal 5 starts the operation so that the synchronous commutator circuit 35 synchronously rectifies the discharge current of the oscillation switch sub-circuit 34, and supplies power to the heat generating element 1 based on the synchronously rectified voltage.
  • the current supply voltage of the heat generating component 1 is specifically obtained by driving the oscillation switch sub-circuit 34 and the synchronous commutator circuit 35 based on the pulse width modulation signal of the first duty ratio output by the microprocessor 32.
  • the control signal is specifically a pulse width modulation signal of a second duty ratio output by the microprocessor 32, wherein the first duty ratio is different from the second duty ratio.
  • the embodiment of the present application further provides a schematic diagram of a specific voltage adjustment circuit of the electronic cigarette, and FIG. 4 and FIG. 5 together constitute a voltage adjustment circuit 3, and the model number of the STM32F030 is shown in FIG.
  • the processor U8 and its peripheral circuits correspond to the microprocessor 32 of FIG. 3.
  • the driver U1 of the model LM5106 in FIG. 5 and its peripheral circuits correspond to the driving sub-circuit 33 of FIG. 3, and the inductor L1 of FIG. 5 and the MOS of the model RU30E60M2.
  • the circuit composed of the device such as the tube Q1 corresponds to the oscillation switch sub-circuit 34 in FIG.
  • the circuit composed of the device such as the MOS tube Q2 of the model RU30E60M2 in FIG. 5 corresponds to the synchronous commutator circuit 35 in FIG. 3, and the resistor in FIG.
  • a circuit composed of R2, a capacitor C6, and a capacitor C7 corresponds to the voltage-current sampling sub-circuit 31 of FIG.
  • the same two or more pins or terminals are connected in FIGS. 4 and 5, for example, the pin 12-PA6 of the microprocessor U8 of FIG. 4 for outputting a PWM signal, and the driver U1 of FIG.
  • the pin 8-IN for receiving the PWM signal is connected.
  • the terminal B+ indicates the positive pole of the battery in the power supply circuit
  • the terminal VOT is the voltage sampling point
  • the terminal VCT For the current sampling point
  • the heating element 1 is connected between the terminals VO+ and VO-.
  • the working principle of the circuit shown in FIG. 4 and FIG. 5 is: when the electronic cigarette detects the user's smoking action, the microprocessor U8 sends a signal to the signal receiving pin 8-IN of the driver U1 through the signal output pin 12-PA6. a duty cycle pulse width modulation signal (referred to as PWM), so that the driver U1 drives the device such as the inductor L1, the MOS transistor Q1 and the MOS transistor Q2, and adjusts the original output voltage of the battery to pass the adjusted voltage. Connected to the terminal VO+ and VO- to connect the heating element 1 to supply power.
  • PWM duty cycle pulse width modulation signal
  • the microprocessor U8 obtains the current supply voltage of the heat generating component 1 through the pins 7-PA1 and the pins 8-PA2 respectively connected to the voltage sampling point VOT and the current sampling point VCT.
  • the current supply current is calculated, and the current heating resistance of the heat generating component 1 is calculated based on the current power supply voltage and the current power supply current, and a correspondence table of the heat generating resistor and the heat generating temperature of the heat generating component 1 is stored in the microprocessor U8, and the heat generating component 1 is The optimal temperature range of the atomized smoke oil can be obtained based on the calculated current heating resistance of the heat generating component 1 and the current heating temperature is determined.
  • the microprocessor U8 performs voltage output to the heat generating component 1 by the PWM control driver U1 of the first duty ratio, and if the result is determined If not, the microprocessor U8 adjusts the control signal output to the driver U1, and outputs the PWM of the second duty cycle to the driver U1 to drive the driver U1 based on the second duty cycle PWM drive inductance L1, MOS transistor Q1 and MOS.
  • the device such as the tube Q2 operates to adjust the supply voltage to the heat generating member 1.
  • the driver U1 drives the device such as the inductor L1, the MOS transistor Q1 and the MOS transistor Q2 based on the PWM control signal from the microprocessor U8 (such as the PWM of the first duty ratio or the second duty ratio), the driver U1 respectively
  • the first driving signal and the second driving signal are sent through the pin 10-LO and the pin 3-HO output, the pin 10-LO of the driver U1 is connected to the gate of the MOS transistor Q1, and the pin 3-HO and the MOS transistor Q2
  • the gate is connected; when receiving the PWM control signal, the driver U1 first drives the MOS transistor Q1 to be turned on by the first driving signal, and drives the MOS transistor Q2 to be turned off by the second driving signal, so that the inductor L1 oscillates, thereby charging and storing After the charging and energy storage of the inductor L1 is completed, the driver U1 drives the MOS transistor Q1 to be turned off by the first driving signal, and drives the MOS transistor Q2 to be turned on by the second driving signal.
  • the inductor L1 is discharged and is performed by the MOS transistor Q2. Rectification to obtain a stable DC voltage, and finally to the MOS transistor Q3 of model AON7423, through the pin 14-PB0 of the microprocessor U8 output control signal VO_EN through the transistor Q4 control MOS tube Q3 on and off, to achieve the heating element 1 output voltage control to achieve The heat generation temperature of the heat generating member 1 is maintained within the preset temperature range.
  • the optimum temperature of the atomized smoke oil is 200 ° C ⁇ 270 ° C
  • the temperature of the heating element 1 is lower than 200 ° C
  • adjust the duty cycle of the PWM signal output by the microprocessor U8 the PWM signal through the pin 12-PA6 Passed to the pin 8-IN of the LM5106, the LM5106 transmits the signal to the oscillation switch sub-circuit through the pin 10-LO to boost the voltage.
  • the operating temperature of the electronic cigarette heat-generating component 1 exceeds 270 °C, it can be adjusted.
  • the duty ratio of the PWM signal outputted by the microprocessor U8 is stepped down to ensure that the smoke oil is always at a good atomization temperature.
  • the micro controller U8 detects that the temperature of the heat generating element 1 rises sharply. The alarm signal will be sent, and the micro controller U8 controls the MOS tube Q3 to be disconnected, which can avoid the occurrence of burning of charcoal and burning of cotton.
  • FIG. 6 is a battery protection circuit of the electronic cigarette in the present scheme, and the battery is protected by an IC of the type MM3280, and the MM3280 series IC adopts a high-voltage CMOS manufacturing process for overcharging the lithium battery/polymer battery for two times. It can protect against over-discharge and discharge over-current.
  • CMOS manufacturing process for overcharging the lithium battery/polymer battery for two times. It can protect against over-discharge and discharge over-current.
  • a heat-generating member of a specific material (the constituent materials thereof comprises, in weight percentage, 0.02% to 0.08% carbon, 0.05% to 1% silicon, 1% to 2% manganese, 0.015) % ⁇ 0.045% phosphorus, 0.01% ⁇ 0.03% sulfur, 16.5% ⁇ 20% chromium, 8.5% ⁇ 15% nickel, and iron), the temperature coefficient of resistance is large, so that the heating element is energized and heated.
  • the heating resistance changes significantly with the change of temperature, and the temperature change of the heating element can be obtained by obtaining the heating resistance of the heating element through the voltage adjusting circuit, and the temperature of the heating element is controlled to be appropriate based on the temperature change.
  • the electronic cigarette cannot detect the temperature of the heating wire by detecting the resistance of the heating wire to control the temperature of the heating wire when the temperature is too high, and by setting a temperature sensor in the electronic cigarette.
  • the atomizer heating When heating (such as heating wire), the heating resistance of the heating element is detected to monitor and control its temperature, so that the temperature is not too high, and there is no need to add a temperature sensor in the electronic cigarette, and the inside of the electronic cigarette is not increased.
  • the technical effect of the size and design complexity of the circuit is effectively solved; in the prior art, the electronic cigarette cannot detect the temperature of the heating wire by detecting the resistance of the heating wire to control the temperature of the heating wire when the temperature is too high, and by setting a temperature sensor in the electronic cigarette.
  • the heat-resistant component has high corrosion resistance and high-temperature strength, and the high-temperature resistance can reach 1200° C. to 1300° C., and the chemical property is relatively stable, and is not easily corroded by the smoke oil and does not pollute. Smoke oil.
  • An austenitic crystal structure is formed inside the heat generating member to improve alloy properties such as plasticity, weldability and toughness, because the toughness and hardness are better than those of the conventional nickel-chromium alloy and the iron-chromium-aluminum alloy, in the case of assembling the heat generating member. , there will be no deformation of the heating element, which better guarantees the normal operation of the heating element.
  • the embodiment of the present invention further provides a temperature control method for the electronic cigarette heating element 1 , including the steps of:
  • step S1 is specifically:
  • the heat generating component 1 for atomizing the smoke oil of the electronic cigarette detecting the current power supply voltage and the current power supply current of the heat generating component 1 and acquiring the heat based on the current power supply voltage and the current power supply current
  • the resistance value of the component 1 and the current temperature of the heat generating component 1 is obtained based on the resistance value.
  • the electronic cigarette heating element temperature control method is applied to the electronic cigarette, and therefore, one or more embodiments of the method are the same as the one or more embodiments of the electronic cigarette, and are no longer one by one. I will go into details.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)
  • Control Of Temperature (AREA)

Abstract

L'invention concerne une cigarette électronique et un procédé de régulation de température pour un élément chauffant associé. La cigarette électronique comprend: un élément chauffant (1) utilisé pour vaporiser un liquide et présentant une valeur de résistance qui augmente à mesure que la température augmente; un circuit d'alimentation (2) utilisé pour alimenter l'élément chauffant (1); et un circuit de réglage de tension (3) utilisé pour détecter la valeur de résistance de l'élément chauffant (1) pour acquérir la température actuelle de l'élément chauffant (1). Le circuit de réglage de tension (3) est en outre utilisé pour : lorsque la température actuelle est supérieure à une première valeur prédéfinie ou est inférieure à une seconde valeur prédéfinie, régler une tension d'alimentation de l'élément chauffant (1) pour maintenir une température de chauffage de l'élément chauffant (1) dans une plage de température prédéfinie. Un effet technique selon lequel lorsque l'élément chauffant (1) est en train d'être chauffé, une résistance de chauffage de l'élément chauffant (1) est détectée pour contrôler et réguler la température de l'élément chauffant (1) afin de maintenir la température de l'élément chauffant (1) dans une plage de température appropriée est mis en œuvre.
PCT/CN2015/077968 2015-04-30 2015-04-30 Cigarette électronique et procédé de régulation de température pour élément chauffant associé Ceased WO2016172921A1 (fr)

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CN201580000077.1A CN106572703B (zh) 2015-04-30 2015-04-30 一种电子烟及其发热件温度控制方法
PCT/CN2015/077968 WO2016172921A1 (fr) 2015-04-30 2015-04-30 Cigarette électronique et procédé de régulation de température pour élément chauffant associé

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PCT/CN2015/077968 WO2016172921A1 (fr) 2015-04-30 2015-04-30 Cigarette électronique et procédé de régulation de température pour élément chauffant associé

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CN114838506A (zh) * 2022-05-06 2022-08-02 珠海格力电器股份有限公司 一种防冻及防干烧装置、热水器及其控制方法
CN115736364A (zh) * 2022-11-09 2023-03-07 思摩尔国际控股有限公司 发热结构及电子雾化装置
CN116019262A (zh) * 2023-03-08 2023-04-28 松山湖材料实验室 电子烟及电子烟的多孔碳雾化芯的控温方法
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US11752283B2 (en) 2013-12-23 2023-09-12 Juul Labs, Inc. Vaporization device systems and methods
US10667560B2 (en) 2013-12-23 2020-06-02 Juul Labs, Inc. Vaporizer apparatus
US10912331B2 (en) 2013-12-23 2021-02-09 Juul Labs, Inc. Vaporization device systems and methods
US10512282B2 (en) 2014-12-05 2019-12-24 Juul Labs, Inc. Calibrated dose control
US10405582B2 (en) 2016-03-10 2019-09-10 Pax Labs, Inc. Vaporization device with lip sensing
USD929036S1 (en) 2016-06-16 2021-08-24 Pax Labs, Inc. Vaporizer cartridge and device assembly
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CN106373500B (zh) * 2016-11-04 2023-05-30 上海控易电子科技有限公司 一种液晶显示屏
CN106373500A (zh) * 2016-11-04 2017-02-01 上海控易电子科技有限公司 一种液晶显示屏
CN106820275A (zh) * 2017-03-22 2017-06-13 颐中（青岛）实业有限公司 一种可适配多种发热丝的温控电子烟
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CN110891808A (zh) * 2017-09-26 2020-03-17 韩国烟草人参公社 供给到气溶胶生成装置的加热器的电池的电力的控制方法及其气溶胶生成装置
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CN111655056A (zh) * 2018-01-26 2020-09-11 日本烟草产业株式会社 气溶胶生成装置以及气溶胶生成装置的制造方法
CN111655056B (zh) * 2018-01-26 2024-06-07 日本烟草产业株式会社 气溶胶生成装置、使气溶胶生成装置工作的方法以及计算机可读存储介质
WO2020000152A1 (fr) * 2018-06-25 2020-01-02 深圳市丽福科技有限责任公司 Système de régulation de température d'une cigarette électronique
RU2763689C1 (ru) * 2018-07-23 2021-12-30 Чайна Тобэкко Хубэй Индастриал Корпорейшн Лимитед Способ контроля температуры нагревательного устройства в электронагреваемой курительной системе и электронагреваемая курительная система
CN111487467A (zh) * 2019-01-29 2020-08-04 常州市派腾电子技术服务有限公司 发热件初始阻值的获取方法和装置
CN111487467B (zh) * 2019-01-29 2022-06-28 常州市派腾电子技术服务有限公司 发热件初始阻值的获取方法和装置
CN110742315B (zh) * 2019-05-16 2024-01-19 厦门蜂涛陶瓷有限公司 电子烟加热器及陶瓷发热体的加热控制方法和装置
CN110742315A (zh) * 2019-05-16 2020-02-04 厦门蜂涛陶瓷有限公司 电子烟加热器及陶瓷发热体的加热控制方法和装置
CN110025052B (zh) * 2019-05-20 2022-04-05 深圳市美深威科技有限公司 雾化器的电压控制方法、装置和电子烟
CN110025052A (zh) * 2019-05-20 2019-07-19 深圳市美深威科技有限公司 雾化器的电压控制方法、装置和电子烟
WO2022127830A1 (fr) * 2020-12-17 2022-06-23 深圳市合元科技有限公司 Dispositif de chauffage destiné à être utilisé dans un dispositif de génération d'aérosol, et dispositif de génération d'aérosol
CN114838506B (zh) * 2022-05-06 2024-06-14 珠海格力电器股份有限公司 一种防冻及防干烧装置、热水器及其控制方法
CN114838506A (zh) * 2022-05-06 2022-08-02 珠海格力电器股份有限公司 一种防冻及防干烧装置、热水器及其控制方法
CN115736364A (zh) * 2022-11-09 2023-03-07 思摩尔国际控股有限公司 发热结构及电子雾化装置
CN116019262A (zh) * 2023-03-08 2023-04-28 松山湖材料实验室 电子烟及电子烟的多孔碳雾化芯的控温方法

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