WO2017067326A1 - Cigarette électronique - Google Patents

Cigarette électronique Download PDF

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Publication number
WO2017067326A1
WO2017067326A1 PCT/CN2016/097683 CN2016097683W WO2017067326A1 WO 2017067326 A1 WO2017067326 A1 WO 2017067326A1 CN 2016097683 W CN2016097683 W CN 2016097683W WO 2017067326 A1 WO2017067326 A1 WO 2017067326A1
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WO
WIPO (PCT)
Prior art keywords
heating wire
electronic cigarette
button
circuit
microprocessor
Prior art date
Application number
PCT/CN2016/097683
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English (en)
Chinese (zh)
Inventor
刘秋明
向智勇
牛建华
韦志林
Original Assignee
惠州市吉瑞科技有限公司深圳分公司
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Publication of WO2017067326A1 publication Critical patent/WO2017067326A1/fr

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/53—Monitoring, e.g. fault detection
    • 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
    • A24F40/60—Devices with integrated user interfaces
    • 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 present invention relates to the field of electronic product technology, and in particular, to an electronic cigarette.
  • Electronic cigarette is a relatively common artificial electronic cigarette product, mainly used for smoking cessation and alternative cigarettes; the structure of electronic cigarette mainly includes battery assembly and atomizing assembly; when detecting the smoking action of the smoker, the battery component is an atomizing component The power supply is such that the atomizing component is in an open state; when the atomizing component is turned on, the heating wire is heated, and the smoke oil is evaporated and atomized by heat to form an aerosol which simulates the smoke, so that the user has a feeling similar to smoking when sucking.
  • a display module and a function button are provided on the battery assembly, and the display module is used to display the voltage and output power of the battery assembly. And information such as the temperature of the heating wire in the atomizing assembly. Due to the small size of the battery component, the area of the display module is limited, and the display module interface can only display part of the information in the above voltage, output power and temperature, and trigger the function button preset within a preset time.
  • the number of times switches the information on the interface of the display module to enable the user to view all the information; in addition, when the electronic cigarette needs to be turned off to lock, the preset number of times is triggered by the function button to lock the electronic cigarette and avoid mistakes. trigger.
  • the existing electronic cigarette receives different button times through a function button to realize the display information switching or locking/unlocking function, but when the user just starts to use the electronic cigarette and is not familiar with the electronic cigarette operation, the function button is The number of triggers will be inaccurate. For example, when the trigger function button is used to switch the display information, it is easy to exceed the preset number of times and the electronic cigarette is locked, which makes the user experience poor.
  • the invention is directed to the prior art, the electronic cigarette receives different key times through the same function button to realize the function of switching or locking/unlocking the display information, which is prone to misoperation, and the user experience is poor.
  • the technical problem provides an electronic cigarette, which realizes that the display information switching and locking/unlocking functions are respectively controlled by two buttons, thereby reducing or avoiding the misoperation when the button function is selected, thereby improving the user experience.
  • the present invention provides an electronic cigarette comprising a battery assembly and an atomizing assembly, the electronic cigarette further comprising a detection control circuit, the battery assembly being provided with a display module, a switching button and a lock button connected to the detection control circuit Wherein the switching button and the lock button are two buttons located at different positions and separated by a preset distance;
  • the switching button is configured to receive a first button operation, and convert the first button operation into a first electrical signal, so that the detection control circuit receives and controls the display module to switch display based on the first electrical signal Working parameter information of the electronic cigarette;
  • the lock button is configured to receive a second button operation, and convert the second button operation into a second electrical signal to cause the detection control circuit to receive and control the function of the electronic cigarette based on the second electrical signal Lock or unlock the status.
  • the battery assembly and the atomization assembly are detachably connected, and an end surface of one end portion of the battery assembly is provided with a connection slot for inserting the atomization assembly, the switching button and the
  • the lock button is located at two ends of the side wall of the battery component, and the distance between the lock button and the connection slot is smaller than the distance between the switch button and the connection slot, and the lock button is further used.
  • the electronic aerosolized smoke oil is controlled when the function of the electronic cigarette is in an unlocked state.
  • the electronic cigarette further includes: a power increase control button and a power reduction control button connected to the detection control circuit;
  • the power increase control button is configured to receive a third button operation, and convert the third button operation into a third electrical signal, so that the detection control circuit receives and controls the electronic cigarette to increase based on the third electrical signal Smoke oil atomization power;
  • the power reduction control button is configured to receive a fourth button operation, convert the fourth button operation into a fourth electrical signal, and cause the detection control circuit to receive and control the electronic cigarette to reduce smoke based on the fourth electrical signal Oil atomization power.
  • the display module, the power increase control button, and the power reduction control button are both located at the same side of the battery component, and are located between the switch button and the lock button;
  • the display module and the power reduction control button are respectively located on both sides of the power increase control button.
  • the atomizing assembly is provided with a heating wire for atomizing the smoke oil
  • the battery assembly is provided with a power supply circuit for supplying power to the detection control circuit and the heating wire
  • the detection control circuit is further configured to: when the function of the electronic cigarette is in an unlocked state, and detect a smoking signal, control the power supply circuit to supply power to the heating wire to operate the heating wire while acquiring the a temperature change rate of the heating wire, and when the change speed is greater than a preset value, determining that the smoke oil in the electronic cigarette is exhausted, thereby stopping power supply to the heating wire, and controlling the output of the display module to remind the user that the smoke oil is exhausted Alarm information.
  • the detection control circuit comprises: a microprocessor and a temperature detecting sub-circuit connected to the microprocessor;
  • the microprocessor is configured to control the power supply circuit to supply power to the heating wire when the function of the electronic cigarette is in an unlocked state and detecting a smoking signal, so that the heating wire works;
  • the temperature detecting sub-circuit is configured to acquire a temperature of the heating wire when the heating wire is in operation
  • the microprocessor is further configured to calculate a temperature change speed of the heating wire based on the temperature, determine that the smoke oil is exhausted in the electronic cigarette when the change speed is greater than a preset value, and control the power supply circuit to stop And supplying power to the heating wire, and controlling the display module to output an alarm message for reminding the user that the smoke oil is exhausted.
  • the detection control circuit comprises: a microprocessor and a voltage detection sub-circuit connected to the microprocessor;
  • the microprocessor is configured to control the power supply circuit to supply power to the heating wire when the function of the electronic cigarette is in an unlocked state and detecting a smoking signal, so that the heating wire works;
  • the voltage detecting sub-circuit is configured to acquire a voltage value of a voltage detecting point in a circuit loop where the heating wire is located when the heating wire is in operation;
  • the microprocessor is further configured to calculate, according to the voltage value, a magnitude of resistance change of the heating wire within a preset time, and obtain a temperature change speed of the heating wire based on the variation amplitude, and the change speed is greater than At a preset value, determining that the smoke oil in the electronic cigarette is exhausted to stop supplying power to the heating wire, and controlling the display module to output an alarm message for reminding the user that the smoke oil is exhausted; wherein the resistance of the heating wire is temperature The change has changed.
  • the voltage detection point is a heating wire end
  • the voltage detecting sub-circuit includes:
  • a voltage dividing module connected to the microprocessor and the end of the heating wire for converting the voltage value into a readable voltage, so that the microprocessor calculates the heating wire based on the readable voltage
  • a magnitude of a resistance change in a preset time, and a temperature change speed of the heating wire is obtained based on the variation width, and when the change speed is greater than a preset value, determining that the smoke in the electronic cigarette is exhausted to stop Supplying the heating wire, and controlling the display module to output an alarm message prompting the user to exhaust the smoke;
  • the readable voltage is a voltage that the microprocessor can recognize.
  • the detection control circuit further includes: a first switch component connected to the microprocessor; the microprocessor is configured to control the first switch component to be turned on or off to control the power supply circuit Said heating wire power supply or stop power supply;
  • the voltage detecting sub-circuit further includes: a second switching component connected to the microprocessor; the microprocessor is configured to control the second switching component to be turned on or off to control the voltage detecting sub-circuit detection Obtaining the voltage value or stopping detecting the voltage value.
  • the first switching component and the second switching component are both field effect transistors
  • the drain of the first switching device is connected to the heating wire, the source of the first switching device is grounded, and the microprocessor is connected to the gate of the first switching device for controlling the first a switch member is turned on or off to control the power supply circuit to supply power to the heating wire or to stop power supply;
  • the voltage dividing module includes a first resistor, a second resistor and a first capacitor, one end of the first resistor is connected to the heating wire, and the other end of the first resistor is opposite to the second resistor a capacitor and the microprocessor are connected, the second resistor and the other end of the first capacitor are connected and grounded;
  • a drain of the second switching device is connected to the heating wire and the first resistor, a source of the second switching component is grounded, and the microprocessor is connected to a gate of the second switching component, And configured to control the second switching component to be turned on or off to control the voltage dividing module to acquire and convert the voltage value into a readable voltage or stop acquiring the voltage value.
  • the electronic cigarette is set in the existing electronic cigarette structure composed of the atomizing component and the battery component.
  • a detection control circuit, and a display module, a switch button and a lock button connected to the detection control circuit are disposed in the battery assembly; wherein the switch button and the lock button are located at two different positions And separating a button of a preset distance;
  • the switching button is configured to receive a first button operation, and convert the first button operation into a first electrical signal, so that the detection control circuit receives and is based on the first Signaling the display module to switch display operation parameter information of the electronic cigarette;
  • the lock button is configured to receive a second button operation, and convert the second button operation into a second electrical signal to enable the detecting
  • the control circuit receives and controls the function of the electronic cigarette in a locked or unlocked state based on the second electrical signal.
  • the function button for controlling the switching of the display information and the function button for controlling the function of locking/unlocking the electronic cigarette on the battery component of the electronic cigarette, the existing electronic cigarette is effectively solved by the same
  • the function button receives different key times to realize the display information switching or locking/unlocking function, which is prone to misoperation, and the technical problem of poor user experience reduces or avoids the misoperation of the button function selection, thereby improving the user's use. Experience.
  • FIG. 1 is a structural block diagram of an electronic cigarette according to an embodiment of the present invention.
  • FIG. 2 is a first perspective view of a battery assembly of an electronic cigarette according to an embodiment of the present invention
  • FIG. 3 is a second perspective view of a battery assembly of an electronic cigarette according to an embodiment of the present invention.
  • FIG. 4 is a flow chart of a method for detecting whether smoke oil in an electronic cigarette is exhausted according to an embodiment of the present invention
  • FIG. 5 is a flow chart of a second method for detecting whether smoke oil in an electronic cigarette is exhausted according to an embodiment of the present invention
  • thermocouple sensor 6 is a circuit structural diagram of detecting a temperature of a heating wire by a thermocouple sensor according to an embodiment of the present invention
  • FIG. 7 is a flowchart of a third method for detecting whether smoke oil is exhausted in an electronic cigarette according to an embodiment of the present invention.
  • FIG. 8 is a block diagram of an internal structure of an electronic cigarette for detecting a temperature change of a heating wire by detecting a voltage of an end portion of a heating wire according to an embodiment of the present invention
  • FIG. 9 is a flowchart of a fourth method for detecting whether smoke oil in an electronic cigarette is exhausted according to an embodiment of the present invention.
  • FIG. 10 is a structural block diagram of an internal circuit of a first electronic cigarette according to an embodiment of the present invention.
  • 11A is a block diagram showing an internal circuit structure of an electronic cigarette for detecting a temperature change of a heating wire based on a temperature detecting sub-circuit according to an embodiment of the present invention
  • 11B is a structural block diagram of an internal circuit of an electronic cigarette for detecting a temperature change of a heating wire based on a voltage detecting sub-circuit according to an embodiment of the present invention
  • FIG. 12 is a schematic diagram of a microprocessor and its peripheral circuits according to an embodiment of the present invention.
  • FIG. 13 is a schematic circuit diagram of detecting a voltage of an end portion of a heating wire by a partial pressure according to an embodiment of the present invention
  • FIG. 14 is a schematic diagram of a linear voltage regulator circuit used in an internal circuit of an electronic cigarette according to an embodiment of the present invention.
  • FIG. 15 is a schematic diagram of a reset circuit used in an internal circuit of an electronic cigarette according to an embodiment of the present invention.
  • 16 is a schematic diagram of a display alarm circuit used in an internal circuit of an electronic cigarette according to an embodiment of the present invention.
  • FIG. 17 is a schematic diagram of a switch trigger circuit used in an internal circuit of an electronic cigarette according to an embodiment of the present invention.
  • FIG. 18A is a schematic diagram of a charging management sub-circuit of a power supply circuit used in an internal circuit of an electronic cigarette according to an embodiment of the present invention.
  • FIG. 18B is a schematic diagram of an external charging sub-circuit of a power supply circuit used in an internal circuit of an electronic cigarette according to an embodiment of the present invention.
  • FIG. 19 is a schematic diagram of a battery voltage detecting circuit used in an internal circuit of an electronic cigarette according to the present invention.
  • FIG. 20 is a schematic diagram of a battery protection circuit used in an internal circuit of an electronic cigarette 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 receives different key times through the same function button to realize the switching or locking/unlocking function of the display information, which is prone to misoperation and makes the user
  • the poor technical experience has realized that the display information switching and locking/unlocking functions are controlled by two buttons respectively, which reduces or avoids the misoperation when the button function is selected, and improves the user experience.
  • Embodiments of the present invention provide an electronic cigarette including a battery assembly and an atomizing assembly, the electronic cigarette including a detection control circuit, the battery assembly being provided with a display module connected to the detection control circuit, and cutting Changing a button and a lock button; wherein the switch button and the lock button are two buttons located at different positions and separated by a preset distance; the switch button is configured to receive a first button operation, and the Converting to a first electrical signal by a button operation, so that the detection control circuit receives and controls, according to the first electrical signal, the display module to switch display operating parameter information of the electronic cigarette; the lock button is used for receiving The second button operation and converting the second button operation into a second electrical signal to cause the detection control circuit to receive and control the function of the electronic cigarette to be in a locked or unlocked state based on the second electrical signal.
  • the existing electronic cigarette is effectively solved by separately setting the function button for controlling the switching of the display information and the function button for controlling the function of locking/unlocking the electronic cigarette on the battery component of the electronic cigarette.
  • the same function button receives different key times to realize the display information switching or locking/unlocking function, which is prone to technical problems caused by misoperation, resulting in poor user experience, reducing or avoiding misoperations when the button function is selected, and improving the user. Use experience.
  • an embodiment of the present invention provides an electronic cigarette including a battery assembly 1 and an atomization assembly 2 .
  • the electronic cigarette includes a detection control circuit 10 , and the battery assembly 1 is disposed to be connected to the detection control circuit 10 .
  • the detection control circuit 10 can be disposed in the battery assembly 10 (as shown in FIG.
  • the button 13 is two buttons located at different positions and separated by a preset distance; the preset distance depends on the specific length of the battery assembly 1 and is smaller than the length of the battery assembly 1, for example, the battery assembly 1 has a length of 8 cm, and the switch button 12 and the lock button 13 are spaced 6 cm apart; of course, some other function buttons, such as power control buttons, may be provided between the switch button 12 and the lock button 13.
  • the switch button 12 is configured to receive a first button operation and convert the first button operation into a first electrical signal to cause the detection control circuit 10 to receive and control the display module 11 to switch the display based on the first electrical signal
  • the working parameter information of the electronic cigarette includes: a voltage of the battery component, an output power, and a temperature, a resistance, and the like of the heating wire of the atomizing component; specifically, the display module 11 currently displays the first interface
  • the information is: when the switch button 12 receives the M (such as 3) button triggering operation, the detection control circuit 10 controls the display module 11 to switch to display the second interface information, and the first interface information and the second interface information may not be at all The same or part of the same, and both of which contain part of the working parameter information, for example, the first interface information includes: voltage of the battery component, output power, and resistance information of the heating wire, and the second interface information includes: a battery The output power of the component, the temperature of the heating wire and the resistance information.
  • the lock button 13 is configured to receive a second button operation and convert the second button operation into a second electrical signal to cause the detection control circuit 10 to receive and control the function of the electronic cigarette based on the second electrical signal to be locked Or unlock the status.
  • the other buttons or trigger modules on the electronic cigarette except the lock button 13 are disabled, and the electronic cigarette cannot be atomized by the smoke; only the lock button 13 is effectively triggered and unlocked again.
  • the electronic cigarette can atomize the smoke oil, and the lock button 13 is also used to control the electronic aerosolized smoke oil when the function of the electronic cigarette is in an unlocked state.
  • the lock button 13 receives the N (such as 5) button triggering operation, the function of the control control circuit 10 to control the electronic cigarette is changed from locked to unlocked or unlocked to unlocked state, and at the same time, the lock is locked.
  • the machine button 13 can also be used as an atomization control switch of the electronic cigarette.
  • the lock button 13 triggers an operation every time a P (less than N, such as 1) button is received, and the detection control circuit 10 controls the fog.
  • the heating wire in the component 2 atomizes the smoke oil or stops the atomization of the smoke oil; in addition, when the function of the electronic cigarette is in the unlocked state, and within a preset time (such as 1 min), the lock button 13 does not receive the button trigger operation. At this time, the detection control circuit 10 automatically controls the electronic cigarette to be in a locked state.
  • the battery assembly 1 and the atomization assembly 2 are detachably connected.
  • the end surface of the one end portion 10-1 of the battery assembly 1 is provided with a connection slot 14 for inserting the atomization assembly 2.
  • the switch button 12 and the lock button 13 are respectively located at two ends of the outer peripheral side wall of the battery assembly 1, and the distance between the lock button 13 and the connection slot 14 is smaller than the switch button 12 and the connection plug.
  • the distance between the slots 14 can be understood as: when the battery assembly 1 and the atomizing assembly 2 are assembled together, the lock button 13 is disposed at one end of the battery assembly 1 near the atomizing assembly 2, and the switching button 12 is disposed at the battery assembly 1.
  • the nozzle of the electronic cigarette is usually disposed in the atomization assembly 2 away from the battery assembly 1
  • the finger is usually clamped between the battery component 1 and the atomizing component 2, and the lock button 13 can be conveniently controlled at this time, thereby controlling the electronic cigarette to atomize the smoke or stop the atomization of the smoke oil. At the same time, it can also avoid accidentally triggering other function buttons.
  • an information exchange between the electronic cigarette and the external electronic device is provided on the end surface of the other end portion 10 - 2 of the battery assembly 1 opposite to the end portion 10 - 1 .
  • the electronic cigarette further includes: a power increase control button 17 and a power reduction control button 18 connected to the detection control circuit 10.
  • the power increase control button 17 is configured to receive a third button operation, and convert the third button operation into a third electrical signal, so that the detection control circuit 10 receives and controls the electronic cigarette based on the third electrical signal.
  • the power reduction control button 18 is configured to receive a fourth button operation, and convert the fourth button operation into a fourth electrical signal to cause the detection control circuit 10 to receive and based on the fourth electrical signal Controlling the electronic cigarette reduces the atomization power of the smoke oil.
  • the display module 11, the power increase control button 17 and the power reduction control button 18 are located on the same side of the battery pack 1 and are located between the switch button 12 and the lock button 13; the display module 11 and the power reduction control button 18 are respectively located on both sides of the power increase control button 17.
  • the size and spacing of the various function buttons on the battery assembly 1 are set according to the specific length of the battery assembly 1 and the button requirements of the user's finger, and are not specifically limited herein.
  • the embodiment further provides a method for detecting whether the smoke oil in the electronic cigarette is exhausted, and is used for solving the problem that when the function of the electronic cigarette is in an unlocked state and the atomizable oil can be atomized,
  • the smoke does not allow the user to know whether the smoke oil is about to be exhausted, and continues to smoke when the smoke oil is about to be exhausted, resulting in technical problems of burning the cotton.
  • the method includes the following steps:
  • S2 Obtain a temperature change speed of the heating wire, and when the change speed is greater than a preset value, determine that the smoke oil in the electronic cigarette is exhausted, and stop supplying power to the heating wire.
  • the specific heat capacity of the heating wire when the smoke oil is not adhered is A
  • the specific heat capacity of the smoke oil is B ( Greater than A)
  • the specific heat capacity is C, where C is greater than A and less than B; from the physical definition of the specific heat capacity, it is known that the internal energy absorbed or released by the unit mass object changes at the unit temperature, that is, It is said that the specific heat capacity of a substance directly reflects the rate of temperature change.
  • the current specific heat capacity of the heating wire can be known by the temperature change rate, and it is known whether the heating wire adheres to the smoke oil.
  • the temperature change rate of the heating wire is greater than a preset value, that is, whether the current specific heat capacity of the heating wire is similar to the specific heat capacity of the heating wire when the smoke oil is not adhered, and when the heating wire temperature change speed is greater than a preset value, It is indicated that the current specific heat capacity of the heating wire is similar to the heat capacity (A) of the heating wire itself, which indicates that the amount of smoke oil adhered to the heating wire is not adhered or the amount of the smoked oil is small, and the smoke oil in the electronic cigarette can be determined to be exhausted and stopped. Powering the heating wire.
  • a preset value that is, whether the current specific heat capacity of the heating wire is similar to the specific heat capacity of the heating wire when the smoke oil is not adhered, and when the heating wire temperature change speed is greater than a preset value
  • the temperature values of the start time and the end time of a certain preset time period may be obtained, and the temperature changes of the heating wire are calculated by using the two temperature values and the preset time, please refer to FIG. 5
  • the electronic cigarette is provided with an oil guiding member that contacts the heating wire and supplies oil to the heating wire, and the heating wire atomizes the oil on the oil guiding member to form a smoke, and the step S2 is specific Includes substeps:
  • the temperature at which the oil guiding member is cracked is the maximum temperature that the oil guiding member can withstand, and in a specific application, the temperature of the oil guiding member can be heated to the temperature at which the color change begins.
  • the upper limit of the value of the second temperature value may be determined according to different materials of the oil guiding member, and the temperature at which the color change starts may be different, and is not specifically limited herein.
  • the temperature of the heating wire may be detected by a temperature sensor, which is a thermocouple temperature sensor, and the thermocouple temperature sensor is connected to an end of the heating wire.
  • the thermocouple temperature sensor includes a first end line 6 connected to an end portion 611 of the heating wire 61. 2 and the second end line 63; wherein the first end line 62 and the second end line 63 are made of two different kinds of wires (including alloy wires and non-alloy wires), such as copper, iron or constantan.
  • wires including alloy wires and non-alloy wires
  • the other end portion 612 of the heating wire 61 opposite to the end portion 611 is connected to one end of the electron beam 64 (usually a material wire); the other end of the electron beam 64 is connected to the positive electrode of the battery, and the second end line 63 is The other end is connected to the ground for forming a power supply circuit of the heating wire 61; the end of the first end wire 62 and the second end wire 63 remote from the heating wire 61 is connected to the signal amplifier 65 for forming a temperature detecting circuit of the heating wire 61.
  • the microprocessor 66 of the electronic cigarette controls the power supply circuit of the heating wire 61 to be turned on, and the heating wire 61 is energized and heated, at the first end line 62 (such as nickel-chromium material) and the second end line 63.
  • the electromotive force signal is output at the cold end of the high-resistance alloy wire and the low-resistance wire; on the other hand, the signal input end of the signal amplifier 65 is first The cold end of the end line 62 and the second end line 63 are connected to obtain the electromotive force signal, and is amplified, and further the amplified electromotive force signal is sent to the microprocessor 66 of the electronic cigarette for processing to obtain the heating wire.
  • the current temperature value of 61 is a temperature value of 61.
  • the temperature change rate of the heating wire can be obtained by detecting the magnitude of the resistance change of the heating wire, that is, the step S2 is specifically: obtaining the voltage value of the voltage detecting point in the circuit loop where the heating wire is located, based on Calculating a magnitude of resistance change of the heating wire in a preset time, and obtaining a temperature change speed of the heating wire based on the variation amplitude, and determining the electron when the changing speed is greater than a preset value
  • the smoke oil in the smoke is exhausted and the supply of the heating wire is stopped; wherein the resistance of the heating wire changes with temperature.
  • the voltage detection point may be the end of the heating wire.
  • the resistance change amplitude of the heating wire is obtained, so that the temperature change speed of the heating wire can be known, and then the temperature change is obtained.
  • the speed can know the current specific heat capacity of the heating wire; determine whether the heating wire resistance change speed is greater than the preset value, that is, whether the current specific heat capacity of the heating wire is similar to the specific heat capacity of the heating wire when the smoke oil is not adhered, and the resistance change speed is greater than the preset
  • the value indicates that the current specific heat capacity of the heating wire is similar to the heat capacity of the heating wire itself, and thus indicates that the amount of smoke oil adhered to the heating wire is not adhered or the amount of the smoked oil is small, and the smoke oil in the electronic cigarette can be determined to be exhausted. Stop supplying power to the heating wire.
  • step S2 specifically includes the sub-steps:
  • the voltage (U) at the end of the heating wire rises as the heating wire resistance (R) rises or decreases as the heating wire resistance (R) decreases. That is to say, the change of the end voltage (U) of the heating wire can reflect the change of the heating wire resistance (R), and the starting time (ie, the first time) and the ending time (ie, the first time) of the preset time are respectively acquired.
  • the voltage value at the second time), and based on the two voltage values (ie, the first voltage value and the second voltage value), the resistance (Rt1) of the heating wire at the first moment and the resistance (Rt2) at the second moment are determined, and further determined.
  • the amplitude of the resistance change of the heating wire in the predetermined time (t) is:
  • the temperature change speed of the heating wire is known by
  • the temperature change speed is at the temperature
  • the voltage of the end of the heating wire obtained by the measurement may be large, in order to obtain a smaller voltage value, and to reflect the larger voltage at the end of the hot wire by the smaller voltage value,
  • a voltage dividing resistor 81 (for voltage division) may be connected in series in the power supply circuit of the heating wire 80 in the atomizing assembly, and the voltage at the end of the heating wire 80 is obtained in the step S2.
  • the value is specifically: obtaining a voltage dividing value across the voltage dividing resistor 81, and obtaining a voltage value of the end portion of the heating wire 80 based on the power supply voltage of the power supply circuit and the divided voltage value.
  • FIG. 8 A voltage dividing resistor 81 (for voltage division) may be connected in series in the power supply circuit of the heating wire 80 in the atomizing assembly, and the voltage at the end of the heating wire 80 is obtained in the step S2.
  • the value is specifically: obtaining a voltage dividing value across the voltage dividing resistor 81, and obtaining a voltage value of the end portion
  • the electronic cigarette is provided with a microprocessor 82 and a first switch member 83 and a second switch member 84 electrically connected to the microprocessor 82 and the heating wire 80; wherein, the microprocessor 82
  • the first switch member 83 and the heating wire 80 are connected to the two ends of the electronic cigarette battery to form a first loop
  • the microprocessor 82, the second switch member 84, the voltage dividing resistor 81 and the heating wire 80 are connected to the electronic cigarette battery.
  • the second loop is formed at the end; when the microprocessor 82 controls the first switch member 83 to be turned on, the second switch member 84 is controlled to be turned off to operate the heating wire 80.
  • the microprocessor 82 controls the second switch member 84 to be turned on, Then, the first switching member 83 is controlled to be turned off to obtain the voltage value at the end of the heating wire 80.
  • step S2 in order to remind the user when it is determined that the electronic cigarette smoke is about to run out, please refer to FIG. 9.
  • step S2 the method further includes the steps of:
  • a display module for displaying text information, an audio module for broadcasting voice information, a vibration module for emitting vibration information, or an LED lamp for emitting light information may be disposed in the electronic cigarette, wherein the light information may be Light information with different brightness or different light information.
  • the electronic cigarette when the user smokes and the smoke oil is about to be exhausted, the electronic cigarette can be controlled to stop working in time to avoid the occurrence of the burning phenomenon, and at the same time, the user can be reminded that the smoke oil is exhausted, thereby improving the user's use.
  • the electronic cigarette when the user smokes and the smoke oil is about to be exhausted, the electronic cigarette can be controlled to stop working in time to avoid the occurrence of the burning phenomenon, and at the same time, the user can be reminded that the smoke oil is exhausted, thereby improving the user's use.
  • the present invention further provides an electronic cigarette.
  • the electronic aerosolizing component 2 is provided with a heating wire 21 for atomizing the smoke oil.
  • the battery assembly 1 is provided with a power supply circuit 19 for detecting the control circuit 10 and the heating wire 21;
  • the detection control circuit 10 is further configured to control the power supply circuit 19 to supply power to the heating wire 21 when the function of the electronic cigarette is in an unlocked state and the smoking signal is detected, so that the heating wire 21 operates while acquiring the temperature change of the heating wire 21. Speed, and when the change speed is greater than a preset value, determining that the smoke oil in the electronic cigarette is exhausted, thereby stopping power supply to the heating wire 21, and controlling the display module 11 to output an alarm message prompting the user that the smoke oil is exhausted.
  • the detection control circuit 10 includes: a microprocessor 101 and a temperature detecting sub-circuit 102 connected to the microprocessor 101; the microprocessor 101 is configured to unlock the function of the electronic cigarette When the state is detected and the smoking signal is detected, the power supply circuit 19 is controlled to supply power to the heating wire 21 to operate the heating wire 21; the temperature detecting sub-circuit 102 is configured to acquire the temperature of the heating wire 21 when the heating wire 21 is in operation; the microprocessor 101 And a method for calculating a temperature change speed of the heating wire 21 based on the temperature, and determining that the smoke oil is exhausted in the electronic cigarette when the change speed is greater than a preset value, and controlling the power supply circuit 19 to stop The heating wire 21 is powered, and the control display module 11 outputs an alarm message to remind the user that the smoke oil is exhausted.
  • the temperature detecting sub-circuit 102 can detect the temperature of the heating wire 21 by using a temperature sensor, which is a thermocouple temperature sensor, and the thermocouple temperature sensor is connected to the end of the heating wire, as shown in FIG. I will not repeat them here.
  • the detection control circuit 10 includes: a microprocessor 101 and a voltage detection sub-circuit 103 connected to the microprocessor 101;
  • the microprocessor 101 is configured to control the power supply circuit 19 to supply power to the heating wire 21 when the function of the electronic cigarette is in an unlocked state and the smoking signal is detected, so that the heating wire 21 operates;
  • the voltage detecting sub-circuit 103 is configured to obtain a voltage value of a voltage detecting point (such as a heating wire end) in a circuit loop where the heating wire 21 is located when the heating wire 21 is operated;
  • the microprocessor 101 is further configured to calculate a resistance change amplitude of the heating wire 21 within a preset time based on the voltage value, and acquire a temperature change speed of the heating wire 21 based on the variation amplitude, and the change speed is greater than a preset
  • the value is determined, it is determined that the smoke oil in the electronic cigarette is exhausted, and the power supply circuit 19 is controlled to stop supplying power to the heating wire 21, and the display display module 11 outputs an alarm message for reminding the user that the smoke oil is exhausted; wherein the resistance of the heating wire 21 is related to temperature Change and change.
  • the voltage detecting sub-circuit 103 when the voltage detection point is the end of the heating wire, the voltage detecting sub-circuit 103 includes:
  • a voltage dividing module 1031 connected to the end of the microprocessor 101 and the heating wire 21 for converting the voltage value into a readable voltage, so that the microprocessor 101 calculates the heating wire 21 based on the readable voltage
  • the magnitude of the resistance change in the time, and the temperature change speed of the heating wire 21 is obtained based on the magnitude of the change, and when the change speed is greater than the preset value, determining that the smoke oil in the electronic cigarette is exhausted to stop the heating wire 21
  • the power supply, and the control display module 11 outputs an alarm message prompting the user to exhaust the smoke oil; wherein the readable voltage is a voltage that the microprocessor 101 can recognize.
  • the detection control circuit 10 further includes: a first switching device 104 connected to the microprocessor 101; the microprocessor 101 is configured to control the first switching device 104 to be turned on or off to control the power supply circuit 19 supplying power to the heating wire 21 or stopping the power supply;
  • the voltage detecting sub-circuit 103 further includes: a second switching component 1032 connected to the microprocessor 101; the microprocessor 101 is configured to control the second switching component 1032 to be turned on or off to control the voltage detecting sub-circuit 103 to detect and acquire The voltage value or stop detecting the voltage value.
  • the first switching component 104 and the second switching component 1032 are all the field effect transistors; the drain of the first switching component 104 is connected to the heating wire 21, the source of the first switching component 104 is grounded, and the microprocessor
  • the first switch member 104 is connected to the gate of the first switch member 104 for controlling the first switch member 104 to be turned on or off to control the power supply circuit 19 to supply or stop the power supply to the heating wire 21;
  • the voltage dividing module 1031 includes a first resistor, a second resistor and a first capacitor, one end of the first resistor is connected to the heating wire 21, and the other end of the first resistor is connected to the second resistor, the first capacitor and the microprocessor, The second resistor is connected to the other end of the first capacitor and grounded; the drain of the second switch member 1032 is connected to the heating wire 21 and the first resistor, and the source of the second switch member 1032 is grounded, the microprocessor 101 Connected to the gate of the second switching device 1032 for controlling the second switching device 10
  • the microprocessor 101 in FIG. 11B corresponds to the single chip STM32F030K6 in FIG. 12, the heating wire 21 in FIG. 11B, the first switching device 104 and the second
  • the switch member 1032 corresponds to the heating wire L and the field effect transistors Q1 and Q2 in Fig. 13, respectively; the letters on the terminals in Fig. 12 and Fig. 13 indicate that the transmitted signal identification and the plurality of terminals marked with the same signal are connected. Relationship, in addition, other specific circuit diagrams in this embodiment also follow this rule.
  • the O+ terminal of the heating wire L (generally about 0.3 ohms) is connected to the positive electrode B+ of the battery, the O- terminal of the heating wire L is connected to the drain of the field effect transistor Q1, and the source of the FET Q1 is grounded.
  • the PB0 end of the No. 14 pin of the STM32F030K6 is connected to the gate of the FET Q1, and is used for transmitting the PWM wave signal identified as DRIV to control the Q1 to be turned on or off, thereby controlling the power supply loop of the heating wire L to be turned on or disconnect.
  • first resistor, the second resistor, and the first capacitor of the voltage dividing module 1031 in FIG. 11B correspond to the resistor R38, the resistor R39, and the capacitor C22 in FIG. 13, respectively.
  • One end of the resistor R38 is connected to the O- terminal of the heating wire L
  • the other end of the resistor R38 is connected to the resistor R39, the capacitor C22, and the No. 8 pin PA2 end of the single chip STM32F030K6, and the other end of the resistor R39 and the capacitor C22 are connected and grounded.
  • the drain of the FET Q2 is connected to the O- terminal of the heating wire L and the resistor R38, and the source of the FET Q2 is grounded.
  • the PB1 end of the pin 15 of the STM32F030K6 is connected to the gate of the FET Q2 for
  • the control field effect transistor Q2 is turned on or off to control the voltage dividing module composed of the resistors R38, R39 and the capacitor C22 to obtain the voltage value of the O- terminal of the heating wire, and convert the voltage value into the readable voltage of the single chip STM32F030K6 or stop. Obtain the voltage value. This is because the voltage value that can be recognized according to the type of the microprocessor may be limited. For example, in the specific implementation circuit shown in FIG. 12 and FIG.
  • the single chip STM32F030K6 can read the voltage value lower than 3V, but the electronic cigarette
  • the supply voltage of the battery to the heating wire L is usually about 4.2V, that is, when the battery power is normal, the O-terminal voltage value of the heating wire L is 3V or more.
  • the voltage dividing module is set to make the micro The processor can read a voltage value lower than 3V through the voltage dividing module, and indirectly read the voltage value of the O- terminal of the heating wire through the lower voltage value.
  • the drain of the field effect transistor Q1 is directly connected to the O- terminal of the heating wire L, and the drain of the field effect transistor Q2 passes through the resistor R41 having a certain resistance value (for example, 3 ohms) and the O- of the heating wire L.
  • the terminal connection when Q1 and Q2 are simultaneously turned on, the current output from the O-terminal of the heating wire L flows directly from Q1 to the ground, and the Q2 branch does not function at this time.
  • the control logic for Q1 and Q2 is: when the single-chip microcomputer STM32F030K6 controls the field effect transistor Q1 to be turned on, the control field effect transistor Q2 is turned off to make the heating wire L work; when the single chip microcomputer STM32F030K6 controls the field effect transistor Q2 When it is turned on, the FET Q1 is turned off to obtain the voltage value of the end of the heating wire L.
  • the electronic cigarette further includes: a linear regulator circuit 3 connected to the power supply circuit 19 and the microprocessor 101 for adjusting the work provided by the power supply circuit 19 to the microprocessor 101.
  • the voltage is such that the regulated operating voltage is stabilized at the rated operating voltage of the microprocessor 101.
  • FIG. 14 it is a schematic diagram of a linear voltage regulator circuit used in an internal circuit of an electronic cigarette. Referring to FIG. 12 and FIG. 14 , the rated operating voltage of the single chip STM32F030K6 in FIG. 12 is 3V, in FIG. 14 .
  • the positive voltage of the battery is input to the voltage regulator TLV70430 through the voltage regulator D5 to adjust the voltage of the electronic cigarette battery output greater than 3V, and output a stable 3V VDD voltage to the microprocessor (ie, the single chip STM32F030K6 shown in FIG. 12)
  • the No. 1 pin is at the VDD terminal) to provide the microprocessor with an operating voltage that allows it to operate normally.
  • the electronic cigarette further includes: a reset circuit 4 connected to the microprocessor 101, configured to detect an internal working voltage of the microprocessor 101, and the internal working voltage is low. At the first predetermined voltage, a reset signal is output to the microprocessor 101.
  • FIG. 15 it is a schematic diagram of a reset circuit used in an internal circuit of the electronic cigarette. Referring to FIG. 12 and FIG. 15 , the input terminal Vin of the reset circuit is connected to the VDD terminal of the No. 1 pin of the single chip STM32F030K6.
  • the output terminal Vout is connected to the NRST terminal of the 4th pin of the single chip STM32F030K6, and the reset circuit detects and acquires the single chip STM32.
  • the electronic cigarette further includes: an alarm circuit 5 connected to the microprocessor 101; and the microprocessor 101 is configured to notify the alarm when the smoke is exhausted in the electronic cigarette.
  • the circuit 5 outputs alarm data; the alarm circuit 5 is configured to output alarm information based on the alarm data to remind the user that the smoke oil is exhausted; wherein the alarm information includes text information, voice information, vibration information, and light information, at least One.
  • a display module for displaying text information, an audio module for broadcasting voice information, a vibration module for emitting vibration information, or an LED lamp for emitting light information may be disposed in the electronic cigarette, wherein the light information may be Light information with different brightness or different light information.
  • the alarm circuit 5 is specifically configured to display the output alarm information, that is, the alarm circuit 5 in FIG. 11B is specifically the display module 11 in FIG. 1 , and the alarm circuit 5 includes: a display screen connected to the microprocessor 101. a wake-up sub-circuit connected to the microprocessor 101 and the display screen; the microprocessor 101 is configured to output a wake-up trigger signal to the wake-up sub-circuit while determining that the smoke is exhausted in the electronic cigarette, while simultaneously displaying the The screen output is used for displaying the output alarm data; the wake-up sub-circuit is configured to wake up the display screen after receiving the wake-up trigger signal; the display screen displays an output based on the alarm data to remind the user after waking up Text message that smoke oil is exhausted.
  • FIG. 16 it is a schematic diagram of a display alarm circuit used in an internal circuit of an electronic cigarette.
  • the alarm circuit comprises a 96 ⁇ 16 dot matrix organic electro-laser display OLED and
  • the wake-up sub-circuit connected thereto includes a PNP type transistor Q3, an NPN type transistor Q4 and a P-channel field effect transistor Q5.
  • the base of the transistor Q3 is connected with the 21st pin PA11 of the single chip STM32F030K6, the emitter and the input.
  • the VDD voltage and the collector are connected to the 8th pin of the display.
  • the base of the transistor Q4 is connected to the collector of the tertiary tube Q3, the emitter is grounded, the collector is connected to the positive voltage terminal of the battery B+, and the gate of the field effect transistor Q5 is connected.
  • the pole is connected to the battery positive voltage terminal B+ through the resistor R51, the source is directly connected to the battery positive voltage terminal B+, and the drain is connected to the 5th pin VBAT (operating voltage input terminal) of the display screen.
  • the working principle of the display alarm circuit is as follows: in the case that the electronic cigarette smoke is sufficient, the single chip STM32F030K6 outputs a high level signal to the base of the third stage tube Q3 through the PA11 end of the 21st pin, so that the triode Q3, Q4 and FET Q5 are both off and the display is powered off.
  • the wake-up trigger signal is output to the base of the tertiary tube Q3 through the PA11 end of the 21st pin. (such as low-level signal), at this time, the transistor Q3 is turned on, and then the transistor Q4 and the field effect transistor Q5 are turned on in turn, and the display screen is energized.
  • the display is energized when necessary, and the display is powered off when it is not needed, thereby achieving a power saving effect.
  • the SCL end of the 10th pin and the SDA end of the 11th pin of the display are respectively connected with the PA9 end of the 19th pin of the STM32F030K6 and the PA10 end of the 20th pin, that is to say,
  • the single chip STM32F030K6 writes the alarm data for displaying the output to the display through the PA9 end of the 19th pin and the PA10 end of the 20th pin, so that the display screen displays the output based on the alarm data after waking up to remind the user of the fuel consumption. Text information.
  • the electronic cigarette further includes a switch trigger circuit 6 connected to the microprocessor 101, including: a switch button 12, a lock button 13, a power increase control button 17, and a power reduction control.
  • Button 18 Specifically, please refer to FIG. 17, which is a schematic diagram of a switch trigger circuit used in an internal circuit of an electronic cigarette.
  • the switch button 12, the lock button 13, the power increase control button 17, and the power reduction control button 18 in FIG. 11B respectively Corresponding to the switches (S1-S4) in Fig. 17, the switches (S1-S4) in Fig.
  • the switch S1 when the switch S1 receives the M (such as 3) button triggering operation, outputs a level signal (such as a high level signal) indicating that the display information is switched to the single chip STM32F030K6, so that the single chip STM32F030K6 controls the display based on the high level signal.
  • the screen OLED switches display interface information.
  • the microprocessor's 30th pin PB7 end does not detect a high level signal, and controls the display OLED to continuously display the original interface information;
  • S2 When receiving the triggering action, S2 outputs a level signal (such as a high level signal) indicating that the smoking power is increased to the single chip microcomputer STM32F030K6, so that the single chip microcomputer STM32F030K6 adjusts the PWM for controlling the conduction of the field effect transistor Q1 based on the high level signal.
  • the duty ratio of the wave to increase the output power to the heating wire L.
  • the duty cycle of the PWM wave that is turned on by the effect transistor Q1 is unchanged; when the switch S3 receives the triggering action, a level signal (such as a low level signal) indicating that the smoking power is reduced is output to the single chip microcomputer STM32F030K6 to The microcontroller STM32F030K6 P is adjusted based on low-level signal for controlling the FET Q1 is turned on The duty ratio of the WM wave is to reduce the output power to the heating wire L.
  • the switch S3 does not receive the triggering action, the low-level signal is not detected at the PB5 end of the No. 28 pin of the STM32F030K6, and is kept for control.
  • the duty cycle of the PWM wave that is turned on by the FET Q1 is unchanged; when the switch S4 receives the N (such as 5) key presses, the output to the STM32F030K6 indicates that the control electronic cigarette function is changed from locked to unlocked or unlocked. It becomes a locked level signal (such as a high level signal), so that the single chip STM32F030K6 controls the electronic cigarette to be unlocked or locked based on the high level signal, and at the same time, the switch S4 can also be used as an atomization control switch of the electronic cigarette.
  • N such as 5
  • the switch S4 triggers the operation every time the P (less than N, such as 1) button is received, and outputs a level signal indicating that the heating wire 21 is atomized or the atomized smoke is stopped to the single chip STM32F030K6 ( Such as a low level signal), so that the single chip STM32F030K6 controls the heating wire 21 to atomize the smoke oil or stop the atomizing smoke oil based on the low level signal; in addition, when the electronic cigarette function is in the unlocked state and at a preset time (such as 1 min) Within When the S4 key is not received trigger operation, automatic control of the microcontroller STM32F030K6 electronic cigarette in the locked state.
  • a preset time such as 1 min
  • the power supply circuit 19 includes: an internal charging interface 191, a charging management sub-circuit 192, a battery 193, and an external charging sub-circuit 194 connected in sequence; the internal charging interface 191 is used for Connected to an external power source and obtains electrical energy; the charge management sub-circuit 192 is also coupled to the microprocessor 101 for charging management of the battery 193 based on the battery charge management signal of the microprocessor 101; the external charging sub-circuit 194 is also micro- The processor 101 is coupled to charge an external device based on an external charging control signal of the microprocessor 101.
  • the external charging sub-circuit 194 includes: a third switching component connected to the microprocessor 101, and a fourth switching component connected to the third switching component and the battery 193, and the battery 193 is connected through the fourth switching component.
  • a boosting module, and an external charging interface connected to the boosting module and configured to be connected to an external device;
  • the third switching component is configured to be turned on when the external charging control signal is acquired, so that the fourth switch The device is turned on to further connect the boosting module to the battery;
  • the boosting module boosts the battery voltage, and the boosted voltage is transmitted to the external device through the external charging interface.
  • FIG. 18A and FIG. 18B are schematic diagrams of a power supply circuit used in an internal circuit of an electronic cigarette.
  • the circuit in FIG. 18A and the circuit in FIG. 18B are connected through a terminal Um.
  • the P1 interface (corresponding to the internal charging interface 191 in FIG. 11B) is a USB interface for externally charging the electronic cigarette, and the No. 1 pin of the P1 is connected to the battery charging management chip AP5056, and the pins 6 and 7 of the AP5056 are connected.
  • the PF1 terminal of the No. 3 pin of the single-chip microcomputer is connected with the PF0 terminal of the No.
  • the MCU when the battery needs to be charged, the MCU outputs a low-level signal to the No. 7 pin of the AP5056 through the PF0 pin of the No. 2 pin, and outputs a high-power signal to the No. 6 pin of the AP5056 through the PF1 end of the No. 3 pin.
  • Flat signal so that the electronic cigarette battery is in the state of charging; in contrast, when the battery is fully charged, the MCU outputs a high level signal to the No. 7 pin of the AP5056 through the PF0 end of the No. 2 pin, and passes through the No. 3 pin.
  • FIG. 18B is a schematic diagram of an external charging sub-circuit of an electronic cigarette.
  • the voltage signal outputted by the battery positive voltage output terminal B+ is filtered by the capacitors C19 and C20, and then input to the current mode boost converter MT3608.
  • the main boost module performs boost processing to boost the battery voltage of the electronic cigarette (such as 4V) to the 5V voltage required for charging of a general electronic device (such as a mobile phone), and outputs it through a P2 interface (specifically, a USB interface). .
  • the external charging sub-circuit includes: a field effect transistor Q6 connected in series with the power supply loop of the boost converter MT3608, and a base connected to the single chip STM32F030K6 and set A transistor Q7 whose electrode is connected to the gate of Q6.
  • the single chip when receiving the external power supply indication signal, the single chip outputs a high level signal to the base of the transistor Q7 through the PA7 end of the 13th pin, so that the transistor Q7 and the FET Q6 are both turned on.
  • the boost module is powered on and supplies power to the outside through the P2 interface.
  • the electronic cigarette battery is prohibited from supplying power to the external device.
  • the single chip STM32F030K6 outputs a low voltage to the base of the transistor Q7 through the PA7 end of the 13th pin.
  • the signal is flat so that the transistor Q7 and the field effect transistor Q6 are both off, so that the MT3608 is inoperable.
  • the 2-4 pin of the P1 interface is connected to the pins 4, 24, and 23 of the STM32F030K6, which can be used to program the STM32F030K6.
  • the electronic cigarette further includes: a battery voltage detecting circuit 7 connected to the power supply circuit 19, configured to detect the voltage of the battery in the power supply circuit 19, and the battery voltage is lower than the second When the voltage is preset, the control power supply circuit 19 stops supplying power to the heating wire 21.
  • the battery voltage detecting circuit composed of the resistors R44, R45 and the capacitor C25 controls the battery to supply power to the heating wire when the voltage of the battery is less than 3.3V.
  • the electronic cigarette further includes: a power supply with the power supply circuit 19
  • a battery protection circuit 8 connected at both ends of the pool is used for overcharging, overdischarging or short circuit protection of the battery.
  • the battery protection circuit includes a battery protection integrated chip MM3280 and a FET Q8, the MM end of the MM3280 pin VDD is connected to the battery positive voltage output terminal B+, the 6th pin VSS terminal and the battery negative voltage.
  • the output terminal B-connection is used to detect whether the battery is abnormal (such as overcharge, overdischarge or short circuit); the DO end of the No. 1 pin of the MM3280 is connected to the gate of the FET Q8 for detecting abnormality of the battery.
  • the control field effect transistor Q8 is turned on to protect the battery.
  • the electronic cigarette in the solution of the present application can control the electronic cigarette to stop working in time when the user smokes, and the smoke oil is about to be exhausted, so as to prevent the occurrence of the burning of the cotton, and also remind the user that the exhausted oil is exhausted, thereby improving User experience.
  • the electronic cigarette also has the functions of charging an external electronic device, managing and protecting the battery, and having various functions and stable performance, and has good practicability.
  • the electronic cigarette in the third embodiment is used to implement the method for detecting whether the smoke oil in the electronic cigarette is exhausted in the second embodiment. Therefore, one or more embodiments of the electronic cigarette and one or more of the above methods are used. The embodiments are the same and will not be described again here.

Abstract

L'invention concerne une cigarette électronique qui résout le problème technique lié à l'apparition rapide d'une erreur d'actionnement lorsqu'une cigarette électronique existante met en œuvre une commutation des informations affichées ou un verrouillage/déverrouillage de fonction par une même touche de fonction en recevant différentes pressions. La cigarette électronique comprend un circuit de commande de détection (10), un ensemble batterie (1) de la cigarette électronique est pourvu d'un module d'affichage (11), d'une touche de commutation (12), et d'une touche de verrouillage de machine (13) qui sont connectés au circuit de commande de détection (10). La touche de commutation (12) et la touche de verrouillage de machine (13) sont deux touches situées à différentes positions sur un intervalle de distance prédéfini. La touche de commutation (12) reçoit un premier actionnement de touche et le convertit en un premier signal électrique, de sorte que le circuit de commande de détection (10) commande, sur la base du premier signal électrique, le module d'affichage (11) afin qu'il commute pour afficher des informations de paramètre d'actionnement de la cigarette électronique. La touche de verrouillage de machine (13) reçoit un second actionnement de touche et le convertit en un second signal électrique, de sorte que le circuit de commande de détection (10) commande, sur la base du second signal électrique, la fonction cigarette électronique pour qu'elle soit à l'état verrouillé ou déverrouillé, de sorte que la commutation d'affichage et le verrouillage/déverrouillage de fonction soient commandés à l'aide de deux touches, et que les erreurs d'actionnement soient réduites.
PCT/CN2016/097683 2015-10-21 2016-08-31 Cigarette électronique WO2017067326A1 (fr)

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CN201520826240.7U CN205214209U (zh) 2015-10-21 2015-10-21 一种电子烟

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