CN208030261U - Electronic cigarette control circuit and electronic cigarette - Google Patents
Electronic cigarette control circuit and electronic cigarette Download PDFInfo
- Publication number
- CN208030261U CN208030261U CN201490001617.9U CN201490001617U CN208030261U CN 208030261 U CN208030261 U CN 208030261U CN 201490001617 U CN201490001617 U CN 201490001617U CN 208030261 U CN208030261 U CN 208030261U
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- China
- Prior art keywords
- resistance
- electronic cigarette
- output end
- real
- temperature
- Prior art date
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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
- A24F40/50—Control or monitoring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
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- Secondary Cells (AREA)
- Control Of Resistance Heating (AREA)
Abstract
A kind of electronic cigarette control circuit and electronic cigarette.The electronic cigarette control circuit includes atomizer circuit and battery rod circuit.The atomizer circuit includes heating wire, temperature detecting module and signal amplification module, temperature detecting module is used to detect the real time temperature of heating wire and real time temperature is converted to real-time voltage output, and signal amplification module after amplifying real-time voltage for being transmitted in battery rod circuit.The battery rod circuit includes electronic cigarette battery and microprocessor, microprocessor is connected with signal amplification module, for controlling the power that electronic cigarette battery is heating wire output according to real-time voltage, so that when real-time voltage is less than default value, power increases with the increase of real-time voltage, when real-time voltage is more than or equal to default value, power reduces with the increase of real-time voltage.Heating wire can be avoided to generate noxious material in atomization smoke oil when the temperature is excessively high in this way.
Description
Technical field
The present invention relates to electronic cigarette technical field, more particularly to a kind of electronic cigarette control circuit and electronic cigarette.
Background technology
Electronic cigarette is a kind of novel electronic product, has an identical appearance with common cigarette, and with cigarette phase
With taste, but electronic cigarette is relative to traditional cigarette health more and environmental protection.Electronic cigarette will be contained by atomization core
There is the tobacco juice of nicotine and essence to be atomized into particle output.The tar and other harmful components in common cigarette are free of in electronic cigarette,
Secondhand smoke will not be generated.
Electronic cigarette in the prior art includes suction nozzle, atomizing component and battery bar assembly, and the three is end to end solid successively
It is fixed, and be fixed in electronic cigarette.It is additionally provided with microcontroller and air flow sensor in battery bar assembly.When air flow sensor incudes
After smoking to user, which controls battery bar assembly output voltage to heating wire component, so that the electricity of atomizing component
Filament assembly is atomized the tobacco juice in the atomizing component.
However, since the voltage that battery bar assembly is heating wire output is constant, when the tobacco tar in electronic cigarette is less,
The temperature of heating wire can be caused higher, when the temperature of heating wire is more than certain value, when heating wire atomization smoke oil will produce to people
The toxic substance of body, this is harmful to the health of user, and influences the mouthfeel of electronic cigarette.
Invention content
The present invention provides one kind capable of adjusting heating wire temperature, and then avoids heating wire in atomization smoke oil when the temperature is excessively high
And generate the electronic cigarette control circuit and electronic cigarette of noxious material.
The present invention provides a kind of electronic cigarette circuits, including atomizer circuit and battery rod circuit；
The atomizer circuit includes heating wire, temperature detecting module and signal amplification module, the temperature detecting module
The real time temperature is simultaneously converted to real-time voltage output by real time temperature for detecting the heating wire；The signal amplifies mould
Block is used to after amplifying the real-time voltage be transmitted in the battery rod circuit；
The battery rod circuit includes electronic cigarette battery and microprocessor, and the microprocessor amplifies mould with the signal
Block is connected, for controlling the power that the electronic cigarette battery is heating wire output according to the real-time voltage so that work as institute
When stating real-time voltage less than default value, the power increases with the increase of the real-time voltage, when the real-time voltage
When more than or equal to default value, the power reduces with the increase of the real-time voltage.
The electronic cigarette circuit, wherein the temperature detecting module is thermocouple, thermistor, resistance temperature detection
Device (RTD) or integrated circuit temperature sensor.
The electronic cigarette circuit, wherein the temperature detecting module is specially RTD；The battery rod circuit includes just
The cathode output end of pole output end and ground connection；
The signal amplification module specifically includes the first operational amplifier and the second operation amplifier with low biasing temperature drift
Device, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance and
First zener diode；
The in-phase input end of first operational amplifier and one end of the RTD, the first resistor one end, described
One end of second resistance is connected, cathode output end, the electric heating of the other end of the first resistor and the battery rod circuit
One end of silk is connected, and the other end of the second resistance is connected with the output end of first operational amplifier, and the RTD's is another
The other end of one end and the heating wire is grounded, and the RTD and the heating wire are mutually close, so that the RTD can
Detect the temperature of the heating wire；
The inverting input of first operational amplifier is connected with one end of the 3rd resistor, also electric with the described 4th
One end of resistance is connected, the other end ground connection of the 3rd resistor, the other end and first operation amplifier of the 4th resistance
The output end of device is connected；
The in-phase input end of the second operational amplifier is connected with the output end of first operational amplifier, and reverse phase is defeated
Enter end with one end of the 5th resistance, the 6th resistance, the 7th resistance to be connected, the other end and the battery of the 5th resistance
The cathode output end of bar circuit is connected, the other end ground connection of the 6th resistance, the other end of the 7th resistance and described the
The output end of two operational amplifiers is connected；
Cathode of the output end of the second operational amplifier with first zener diode, the microprocessor phase
Even, the anode of first zener diode is connected with one end of the 8th resistance, the other end ground connection of the 8th resistance；
The anode of first operational amplifier and the positive power source terminal of second operational amplifier with the battery rod circuit
Output end is connected, and negative power end is grounded.
The electronic cigarette circuit, wherein the temperature detecting module is specially negative temperature coefficient (NTC) thermistor,
The battery rod circuit includes cathode output end and the cathode output end of ground connection；
The signal amplification module specifically include third operational amplifier, adjustable resistance, resistance one, resistance two, resistance three,
Resistance four, resistance five, resistance six, the second zener diode；
The one end of the both ends of the adjustable resistance respectively with one end of the resistance one, the resistance two is connected, the electricity
The other end of resistance one is connected with the cathode output end of the battery rod circuit, the other end ground connection of the resistance two；
The cathode output end of one end of the heating wire and the battery rod circuit, other end ground connection；
The in-phase input end of the third operational amplifier is connected with one end of the NTC thermistor, the resistance three,
The other end of the NTC thermistor is connected with the cathode output end of the battery rod circuit, another termination of the resistance three
Ground；And the NTC thermistor and the heating wire are mutually close, so that the NTC thermistor is able to detect that the electricity
The temperature of heated filament；
The inverting input of the third operational amplifier is connected with one end of the resistance four, resistance five, the resistance
Four other end ground connection, the other end of the resistance five are connected with the output end of the third operational amplifier；
The output end of third operational amplifier is also connected with the cathode of the microprocessor, second zener diode；
The anode of second zener diode is connected with one end of the resistance six, the other end ground connection of the resistance six；
The positive power source terminal of the third operational amplifier is connected with the cathode output end of the battery rod circuit, negative power end
Ground connection.
The electronic cigarette circuit, wherein the battery rod circuit includes electronic cigarette battery, switch, microprocessor, field effect
Ying Guan, cathode output end, cathode output end, the first divider resistance and the second divider resistance；
The anode of the electronic cigarette battery is connected with the cathode output end, cathode ground connection；The poles G of the field-effect tube with
The microprocessor is connected, and the poles D are connected with the cathode output end, and the poles S are connected with the cathode of the electronic cigarette battery；
One end of first divider resistance is extremely connected with the D of the field-effect tube, the other end and the microprocessor, institute
The one end for stating the second divider resistance is connected；The other end of second divider resistance is connected with the anode of the electronic cigarette battery；
The switch is connected with the microprocessor, described when the microprocessor detects that the switch is triggered
Microprocessor is according to the voltage control of the real-time voltage and first divider resistance both ends from the signal amplification module
The conduction ratio between the poles D of the field-effect tube and the poles S is made, to control between the cathode output end and the cathode output end
The power of output.
The electronic cigarette circuit, wherein the battery rod circuit further includes the first capacitance, third zener diode；
The microprocessor is connected with the cathode of one end of first capacitance, the third zener diode, and described
The other end of one capacitance is grounded, and the anode of the third zener diode is connected with the anode of the electronic cigarette.
The electronic cigarette circuit, wherein the battery rod circuit further includes current-limiting resistance；
One end of the current-limiting resistance is extremely connected with the D of the field-effect tube, and the other end is connected with the microprocessor.
The electronic cigarette circuit, wherein the microprocessor by chip SN8P27113AA, MC32P21 or
HT46R01 is realized.
The present invention also provides a kind of electronic cigarettes, including above-mentioned electronic cigarette control circuit.
The present invention also provides a kind of electronic cigarette atomizing control methods, including：
The real time temperature of heating wire in temperature detecting module detection electronic cigarette is simultaneously converted to the real time temperature in real time
Voltage is sent to voltage control module；
The voltage control module compares the real-time voltage with default value；
The battery that the voltage control module adjusts the electronic cigarette according to comparing result is the work(of heating wire output
Rate, wherein when the real-time voltage is less than default value, the voltage control module controls the power with described real-time
The increase of voltage and increase；When the real-time voltage is more than or equal to default value, the power is with the real-time voltage
Increase and reduces.
The electronic cigarette control method, wherein the voltage control module includes being connected with the temperature detecting module
Microprocessor, field-effect tube, positive polarity output end and voltage cathode output end, the electronic cigarette battery anode with it is described
Positive polarity output end is connected, and the poles G of the field-effect tube are connected with the microprocessor, the poles D and the cathode output end phase
Even, the poles S are connected with the cathode of the electronic cigarette battery；
The battery that the voltage control module adjusts the electronic cigarette according to comparing result is the work(of heating wire output
Rate specifically includes：
The microprocessor adjusts the conduction ratio between the poles D of the field-effect tube and the poles S according to comparing result.
As can be seen from the above technical solutions, the present invention has the following advantages：
The present invention electronic cigarette in, due to equipped with temperature detecting module come detect heating wire real time temperature and by this in real time
Temperature transition is output after real-time voltage to microprocessor so that microprocessor can control electronic cigarette electricity according to the real-time voltage
Pond is the power of heating wire output so that when the real-time voltage is less than default value, the power is with the real-time electricity
The increase of pressure and increase, when the real-time voltage be more than or equal to default value when, the power with the real-time voltage increasing
Reduce greatly, this way it is possible to avoid the temperature of heating wire is excessively high, and then avoids generating noxious material when heating wire atomization smoke oil,
Improve the user experience of electronic cigarette.
Description of the drawings
Fig. 1 is the frame diagram of one embodiment of electronic cigarette circuit in the present invention；
Fig. 2 be the present invention electronic cigarette circuit in battery rod circuit one embodiment structural schematic diagram；
Fig. 3 be the present invention electronic cigarette circuit in atomizer circuit one embodiment structural schematic diagram；
Fig. 4 be the present invention electronic cigarette circuit in atomizer circuit another embodiment structural schematic diagram
Fig. 5 is the flow chart of one embodiment of the electronic cigarette atomizing control method of the present invention.
Specific implementation mode
The invention discloses a kind of electronic cigarette control circuit and electronic cigarettes, can adjust heating wire temperature, and then avoid
Heating wire generates noxious material in atomization smoke oil when the temperature is excessively high.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is the frame diagram of one embodiment of electronic cigarette circuit in the present invention.Shown in the present embodiment
Electronic cigarette circuit includes atomizer circuit and battery rod circuit.
The atomizer circuit includes heating wire 1, temperature detecting module 2 and signal amplification module 3, the temperature detection mould
Block 2 is used to detect the real time temperature of the heating wire 1 and the real time temperature is converted to real-time voltage output；The signal is put
Big module 3 is used to after amplifying the real-time voltage be transmitted in the battery rod circuit.
The battery rod circuit includes electronic cigarette battery 5 and microprocessor 4, and the microprocessor 4 is put with the signal
Big module 3 is connected, and is the power that the heating wire 1 exports for controlling the electronic cigarette battery 5 according to the real-time voltage, makes
When the proper real-time voltage is less than default value, the power increases with the increase of the real-time voltage, when the reality
When voltage be more than or equal to default value when, the power reduces with the increase of the real-time voltage.
In the present embodiment, due to detecting the real time temperature of heating wire equipped with temperature detecting module and turning the real time temperature
Output is to microprocessor after being changed to real-time voltage so that it is electricity that microprocessor can control electronic cigarette battery according to the real-time voltage
Heated filament output power so that when the real-time voltage be less than default value when, the power with the real-time voltage increasing
Increase greatly, when the real-time voltage is more than or equal to default value, the power subtracts with the increase of the real-time voltage
It is small, this way it is possible to avoid the temperature of heating wire is excessively high, and then avoids generating noxious material when heating wire atomization smoke oil, improve
The user experience of electronic cigarette.
Preferably, in the present embodiment, the temperature detecting module 2 can be thermocouple, thermistor, resistance temperature detection
Any one in device (Resistance Temperature Detector, RTD) and integrated circuit temperature sensor.
Preferably, the microprocessor 4 is realized by chip SN8P27113AA, other chips also can be used certainly, such as
MC32P21 or HT46R01, is specifically not construed as limiting in the present embodiment.
The concrete structure of the electronic cigarette circuit in the present invention is described in further detail below.It should be clear that,
It is below to each module in the electronic cigarette circuit in the present invention for example, and being not construed as limiting.
Referring to Fig. 2, structural representations of the Fig. 2 for one embodiment of battery rod circuit in the electronic cigarette circuit of the present invention
Figure.As shown in Fig. 2, the battery rod circuit includes electronic cigarette battery BT, switch K1, microprocessor U1, field-effect tube Q1, anode
Output end OUT+, cathode output end OUT-, the first divider resistance R10 and the second divider resistance R11.
The anode of the electronic cigarette battery BT is connected with the cathode output end OUT+, cathode ground connection；The field-effect tube
The poles G of Q1 are connected with the microprocessor U1, and the poles D are connected with the cathode output end OUT-, the poles S and the electronic cigarette battery
The cathode of BT is connected.
One end of the first divider resistance R10 is extremely connected with the D of the field-effect tube Q1, the other end and the microprocessor
Device U1, one end of the second divider resistance R11 are connected；The other end of the second divider resistance R11 and electronic cigarette electricity
The anode of pond BT is connected.
The switch K1 is connected with the microprocessor U1, when the microprocessor U1 detects that the switch K1 is triggered
When, the microprocessor U1 according to from the signal amplification module the real-time voltage and the first divider resistance R10
The voltage at both ends controls the conduction ratio between the poles D and the poles S of the field-effect tube Q1, to control the cathode output end OUT+
The power exported between the cathode output end OUT-.
Specifically, in the present embodiment, switch K1 includes three interfaces, two of which interface respectively with the electronic cigarette battery
The anode of BT is connected with cathode, another interface is connected with the microprocessor U1.
Preferably, the battery rod circuit further includes the first capacitance C1, third zener diode D3.The microprocessor U1
It is connected with the cathode of one end of the first capacitance C1, the third zener diode D3, the other end of the first capacitance C1
The anode of ground connection, the third zener diode D3 is connected with the anode of the electronic cigarette.
The specific workflow of battery rod circuit shown in Fig. 2 is described in detail below：
Since two interfaces of switch K1 are connected with the anode and cathode of the electronic cigarette battery BT respectively, another interface
It is connected with " 2 " pin of the microprocessor U1.Cathode output end OUT+ and cathode output end OUT- is electric with atomizer respectively
Road is connected, and when switch K1 is triggered, microprocessor U1 controls electronic cigarette battery BT is defeated by cathode output end OUT+ and cathode
Outlet OUT- powers for atomizer circuit.
There are many modes that switch K1 is triggered.For concrete example, electronic cigarette is equipped with physical button, when user will inhale
When eating electronic cigarette, triggered by pressing the physical button；Alternatively, being equipped with air flow sensor in electronic cigarette, electricity is sucked in user
When sub- cigarette, the air pressure in electronic cigarette will produce variation, and then the thin-film capacitor of air flow sensor is caused to deform upon, when the film
The deformation quantity of capacitance triggers the switch K1 when reaching threshold value.Certainly, other modes can also carry out trigger switch in practice
K1, this is not restricted.
Specifically, when switch K1 is triggered, the anode and cathode of switch K1 and electronic cigarette battery BT be respectively connected with two
It is connected between a interface so that the signal that switch K1 is fed back to " 2 " pin of microprocessor U1 becomes high level from low level.
" 8 " pin of the microprocessor U1 is connected with signal amplification module, the reality sent for receiving the signal amplification module
When voltage." 3 " pin of the microprocessor U1 is connected with one end of the first divider resistance R10, for detecting the first partial pressure
The voltage at the both ends resistance R10, and cathode output end OUT+ is calculated according to the voltage at the both ends the first divider resistance R10 and is born
Output voltage between the output end OUT- of pole.
When the real-time voltage is less than default value, with the increase of the real-time voltage, microprocessor U1 need to increase anode
The temperature of heating wire is transferred to a higher suitable temperature by the voltage between output end OUT+ and cathode output end OUT-
Degree.It is micro- with the increase of the real-time voltage to avoid the temperature of heating wire excessively high when the real-time voltage is more than default value
Processor U1 need to reduce the voltage between cathode output end OUT+ and cathode output end OUT-, and the temperature of heating wire is transferred to one
A lower suitable temperature.
Specifically, when " 2 " pin of microprocessor U1 receives high level, microprocessor U1 is according to the first partial pressure
The voltage at the both ends resistance R10 calculates the output voltage between current cathode output end OUT+ and cathode output end OUT-, so
A pulse width is exported afterwards and modulates (Pulse Width Modulation, PWM) impulse wave, to control the D of field-effect tube Q1
Conduction ratio between pole and the poles S, adjusts the voltage of cathode output end OUT+ and cathode output end OUT- outputs, and then adjusts anode
The power exported between output end OUT+ and cathode output end OUT-.
When being connected between the poles D and the poles S of the field-effect tube Q1, the internal resistance between the poles D and the poles S is definite value, electric current
The poles D and the poles S are flowed through, a potential difference can be formed, which feeds back to microprocessor U1 through current-limiting resistance.Work as field-effect tube
When short circuit or overcurrent occur for the poles D of Q1 and the poles S, microprocessor U1 can detect that the potential difference is more than preset value, and close field
Effect pipe Q1 realizes overcurrent and short-circuit protection.Meanwhile current-limiting resistance prevents the electric current for flowing into microprocessor U1 excessive and burns
Microprocessor U1.
First capacitance C1 is microprocessor U1 filtering, and microprocessor U1 can be also used for the electricity that the first capacitance C1 of detection goes out
Pressure to detect the function of the voltage of electronic cigarette battery BT, and then realizes low-voltage detection function.Third zener diode D3 is for preventing
Only microprocessor U1 reverse phases are powered.
Referring to Fig. 3, structural representations of the Fig. 3 for one embodiment of atomizer circuit in the electronic cigarette circuit of the present invention
Figure.As shown in figure 3, in the present embodiment, the temperature detecting module is specially RTD.
The signal amplification module is specifically included to be put with low the first operational amplifier U1 for biasing temperature drift and the second operation
Big device U2, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th
Resistance R7, the 8th resistance R8 and the first zener diode D1；
The in-phase input end of the first operational amplifier U1 and one end of the RTD, the first resistor R1 one end,
One end of the second resistance R2 is connected, the cathode output end of the other end of the first resistor R1 and the battery rod circuit,
One end of the heating wire is connected, the output end phase of the other end of the second resistance R2 and the first operational amplifier U1
Even, the other end of the other end of the RTD and the heating wire is grounded, and the RTD and the heating wire are mutually close, so that
Obtain the temperature that the RTD is able to detect that the heating wire；
The inverting input of the first operational amplifier U1 is connected with one end of the 3rd resistor R3, also with described
One end of four resistance R4 is connected, the other end ground connection of the 3rd resistor R3, the other end of the 4th resistance R4 and described the
The output end of one operational amplifier U1 is connected；
The in-phase input end of the second operational amplifier U2 is connected with the output end of the first operational amplifier U1, instead
Phase input terminal is connected with one end of the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, and the 5th resistance R5's is another
End is connected with the cathode output end of the battery rod circuit, the other end ground connection of the 6th resistance R6, the 7th resistance R7
The other end be connected with the output end of the second operational amplifier U2；
Cathode, the microprocessor of the output end of the second operational amplifier U2 and the first zener diode D1
It is connected, the anode of the first zener diode D1 is connected with one end of the 8th resistance R8, and the 8th resistance R8's is another
One end is grounded；
The positive power source terminal of the first operational amplifier U1 and second operational amplifier U2 with the battery rod circuit
Cathode output end is connected, and negative power end is grounded.
The specific workflow of atomizer circuit shown in Fig. 3 is described in detail below：
When atomizer circuit is connected with battery rod circuit, the cathode output end and cathode output end of battery rod circuit are distinguished
It is connected with the both ends of heating wire, to power to heating wire so that heating wire being capable of atomization smoke oil.RTD it is mutually close with heating wire but
It does not contact, the temperature for detecting heating wire.The resistance of RTD changes with the variation of the resistance of heating wire so that the both ends RTD
Voltage can reflect the Current Temperatures of heating wire.
In the first operational amplifier of control source U1 at the both ends RTD, after amplifying via the first operational amplifier U1 again
Into in second operational amplifier U2, carries out second and amplify.Wherein, 3rd resistor R3 and the 4th resistance R4 is for controlling the
The amplification factor of one operational amplifier U1, the 6th resistance R6 and the 7th resistance R7 are used to control the amplification of second operational amplifier U2
Multiple.The output end of second operational amplifier U2 is connected with microprocessor, and the voltage of RTD is inputted after second is amplified
To microprocessor.
In the present embodiment, the voltage at the both ends RTD is amplified by two operational amplifiers, enables to heating wire
Temperature when changing in identical range, the voltage change range bigger of corresponding input microprocessor, and then can be to electric heating
The temperature of silk is more accurately adjusted.
Referring to Fig. 4, structural representations of the Fig. 4 for another embodiment of atomizer circuit in the electronic cigarette circuit of the present invention
Figure.As shown in figure 4, in the present embodiment, the temperature detecting module is specially negative temperature coefficient (NTC) thermistor, the electricity
Pond bar circuit includes cathode output end and the cathode output end of ground connection.
The signal amplification module specifically includes third operational amplifier U3, adjustable resistance RF, one R21 of resistance, resistance two
R22, three R23 of resistance, four R24 of resistance, five R25 of resistance, six R26 of resistance, the second zener diode D2.
The one end of the both ends of the adjustable resistance respectively with one end of one R21 of the resistance, two R22 of the resistance is connected,
The other end of one R21 of the resistance is connected with the cathode output end of the battery rod circuit, another termination of two R22 of the resistance
Ground.
The cathode output end of one end of the heating wire and the battery rod circuit, other end ground connection.
The in-phase input end of the third operational amplifier U3 and one end of the NTC thermistor, three R23 of the resistance
It is connected, the other end of the NTC thermistor is connected with the cathode output end of the battery rod circuit, three R23's of the resistance
The other end is grounded；And the NTC thermistor and the heating wire are mutually close, so that the NTC thermistor can detect
To the temperature of the heating wire.
The inverting input of the third operational amplifier U3 is connected with one end of four R24 of the resistance, five R25 of resistance,
The other end of four R24 of the resistance is grounded, the output end of the other end of five R25 of the resistance and the third operational amplifier U3
It is connected.
The output end of third operational amplifier U3 also with the microprocessor, the cathode of the second zener diode D2
It is connected；The anode of the second zener diode D2 is connected with one end of six R26 of the resistance, and six R26's of the resistance is another
End ground connection.
The positive power source terminal of the third operational amplifier U3 is connected with the cathode output end of the battery rod circuit, negative supply
End ground connection.
The specific workflow of atomizer circuit shown in Fig. 4 is described in detail below：
When atomizer circuit is connected with battery rod circuit, the cathode output end and cathode output end of battery rod circuit are distinguished
It is connected with the both ends of heating wire, to power to heating wire so that heating wire being capable of atomization smoke oil.NTC thermistor and heating wire
It is mutually close but do not contact, the temperature for detecting heating wire.The temperature of NTC thermistor with the variation of the resistance of heating wire and
Variation so that the voltage at NTC thermistor both ends can reflect the Current Temperatures of heating wire.
In the present embodiment, temperature detecting module is NTC thermistor, the temperature of the NTC thermistor and the relationship of power
It is nonlinear.It can be adjusted by the resistance value to adjustable resistance, so that when NTC thermistor is in some temperature
When both ends voltage can correspond to preset voltage values.
In the control source third operational amplifier U3 at NTC thermistor both ends, amplify via third operational amplifier U3
Later.Wherein, four R24 of resistance and five R25 of resistance is used to control the amplification factor of third operational amplifier U3.Third operation amplifier
The output end of device U3 is connected with microprocessor, is input to microprocessor by the voltage of NTC thermistors is amplified.
The application also provides a kind of electronic cigarette, which includes electronic cigarette circuit, which includes atomizer
Circuit and battery rod circuit；
The atomizer circuit includes heating wire, temperature detecting module and signal amplification module, the temperature detecting module
The real time temperature is simultaneously converted to real-time voltage output by real time temperature for detecting the heating wire；The signal amplifies mould
Block is used to after amplifying the real-time voltage be transmitted in the battery rod circuit；
The battery rod circuit includes electronic cigarette battery and microprocessor, and the microprocessor amplifies mould with the signal
Block is connected, for controlling the power that the electronic cigarette battery is heating wire output according to the real-time voltage so that work as institute
When stating real-time voltage less than default value, the power increases with the increase of the real-time voltage, when the real-time voltage
When more than or equal to default value, the power reduces with the increase of the real-time voltage.
The concrete structure of the electronic cigarette circuit can be found in the concrete structure of electronic cigarette circuit described above, due to the electronics
The structure of cigarette circuit is identical as the structure of electronic cigarette circuit described above, thus also has the same effect.
Above in the embodiment of the present invention electronic cigarette circuit and electronic cigarette be described, below to the embodiment of the present invention
In electronic cigarette atomizing control method be described.Referring to Fig. 5, one of electronic cigarette atomizing control method implementation in the present invention
Example include：
501, temperature detecting module detects the real time temperature of the heating wire in electronic cigarette and is converted to the real time temperature
Real-time voltage is sent to voltage control module；
In the present embodiment, temperature detecting module can be specifically thermocouple, thermistor, RTD, Integrated Circuit Temperature sensing
Device or other temperature detecting modules, this is not restricted.
Heating wire in electronic cigarette is for the tobacco tar in Atmized electronic cigarrette to generate smog.The heating wire and electronic cigarette battery
Electrical connection, when electronic cigarette works, electronic cigarette battery is powered for heating wire so that heating wire starts to generate heat, and then starts to be atomized
Tobacco tar.Can include harmful substance in generated smog when the temperature of heating wire is more than certain value.Therefore, temperature detection mould
Block detects the temperature of heating wire in real time, and is that voltage is sent to voltage control module by the temperature transition of the heating wire.This implementation
In example, the voltage control module is for controlling the power that electronic cigarette battery is exported by heating wire.
502, the voltage control module compares the real-time voltage and default value；
There is default value in voltage control module in advance, when which is that the temperature of heating wire reaches ceiling temperature
The voltage value that the ceiling temperature is converted by temperature detecting module.Voltage control module exports temperature detecting module real-time
Whether voltage reaches ceiling temperature compared with the default value, with the temperature of real-time confirmation heating wire.It is noted that this implementation
Ceiling temperature in example will produce the temperature of harmful substance when being not necessarily heating wire atomization smoke oil, can also be the smog of generation
Mouthfeel is best and not will produce a temperature of harmful substance.
503, the voltage control module adjusts the battery of the electronic cigarette according to comparing result and is exported for the heating wire
Power, wherein when the real-time voltage is less than default value, the voltage control module controls the power with described
The increase of real-time voltage and increase；When the real-time voltage is more than or equal to default value, the power is with the real-time electricity
The increase of pressure and reduce.
When real-time voltage is less than default value namely the temperature of heating wire is also not up to temperature upper limit.So with really
When voltage increase, voltage control module increases the power that is exported by heating wire of electronic cigarette battery, so that the temperature of heating wire
Reach ceiling temperature as early as possible.When real-time voltage is more than or equal to default value namely the temperature of heating wire has reached or surpasses
The excess temperature upper limit.So with the increase of real-time voltage, voltage control module reduces what electronic cigarette battery was exported by heating wire
Power, so that the temperature of heating wire maintains reach the standard grade temperature or ceiling temperature or so.
In the present embodiment, due to detecting the real time temperature of heating wire equipped with temperature detecting module and turning the real time temperature
Output is to voltage control module after being changed to real-time voltage so that voltage control module device can control electronics according to the real-time voltage
Cigarette battery is the power of heating wire output so that when the real-time voltage is less than default value, the power is with the reality
When voltage increase and increase, when the real-time voltage be more than or equal to default value when, the power is with the real-time voltage
Increase and reduce, this way it is possible to avoid the temperature of heating wire is excessively high, and then avoid generating Toxic when heating wire atomization smoke oil
Matter improves the user experience of electronic cigarette.
Preferably, in the present embodiment, the voltage control module includes the microprocessor being connected with the temperature detecting module
Device, field-effect tube, positive polarity output end and voltage cathode output end, anode and the positive polarity of the electronic cigarette battery
Output end be connected, the poles G of the field-effect tube are connected with the microprocessor, and the poles D are connected with the cathode output end, the poles S and
The cathode of the electronic cigarette battery is connected.
In the step 503, the battery that the voltage control module adjusts the electronic cigarette according to comparing result is described
The power of heating wire output specifically includes：
The microprocessor adjusts the conduction ratio between the poles D of the field-effect tube and the poles S according to comparing result.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (9)
1. a kind of electronic cigarette control circuit, which is characterized in that including atomizer circuit and battery rod circuit；
The atomizer circuit includes heating wire, temperature detecting module and signal amplification module, and the temperature detecting module is used for
It detects the real time temperature of the heating wire and the real time temperature is converted into real-time voltage output；The signal amplification module is used
It is transmitted in the battery rod circuit after amplifying the real-time voltage；
The battery rod circuit includes electronic cigarette battery and microprocessor, the microprocessor and the signal amplification module phase
Even, for controlling the power that the electronic cigarette battery is heating wire output according to the real-time voltage so that when the reality
When voltage be less than default value when, the power increases with the increase of the real-time voltage, when the real-time voltage is more than
When equal to default value, the power reduces with the increase of the real-time voltage.
2. electronic cigarette control circuit according to claim 1, which is characterized in that
The temperature detecting module is thermocouple, thermistor, resistance temperature detector or integrated circuit temperature sensor.
3. electronic cigarette control circuit according to claim 1, which is characterized in that the temperature detecting module is specially resistance
Temperature detector；The battery rod circuit includes cathode output end and the cathode output end of ground connection；
The signal amplification module specifically includes the first operational amplifier and second operational amplifier, the with low biasing temperature drift
One resistance, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance and first are steady
Press diode；
The in-phase input end of first operational amplifier and one end of the resistance temperature detector, the first resistor one
End, one end of the second resistance are connected, the cathode output end of the other end of the first resistor and the battery rod circuit, institute
The one end for stating heating wire is connected, and the other end of the second resistance is connected with the output end of first operational amplifier, described
The other end of the other end of resistance temperature detector and the heating wire is grounded, and the resistance temperature detector and the electricity
Heated filament is mutually close, so that the resistance temperature detector is able to detect that the temperature of the heating wire；
The inverting input of first operational amplifier is connected with one end of the 3rd resistor, also with the 4th resistance
One end is connected, the other end ground connection of the 3rd resistor, the other end and first operational amplifier of the 4th resistance
Output end is connected；
The in-phase input end of the second operational amplifier is connected with the output end of first operational amplifier, inverting input
It is connected with one end of the 5th resistance, the 6th resistance, the 7th resistance, the other end and the battery rod electricity of the 5th resistance
The cathode output end on road is connected, and the other end ground connection of the 6th resistance, the other end of the 7th resistance is transported with described second
The output end for calculating amplifier is connected；
The output end of the second operational amplifier is connected with the cathode of first zener diode, the microprocessor, institute
The anode for stating the first zener diode is connected with one end of the 8th resistance, the other end ground connection of the 8th resistance；
First operational amplifier and the positive power source terminal of second operational amplifier are exported with the anode of the battery rod circuit
End is connected, and negative power end is grounded.
4. electronic cigarette control circuit according to claim 1, which is characterized in that the temperature detecting module is specially subzero temperature
Coefficient resistance is spent, the battery rod circuit includes cathode output end and the cathode output end of ground connection；
The signal amplification module specifically includes third operational amplifier, adjustable resistance, resistance one, resistance two, resistance three, resistance
Four, resistance five, resistance six, the second zener diode；
The one end of the both ends of the adjustable resistance respectively with one end of the resistance one, the resistance two is connected, the resistance one
The other end be connected with the cathode output end of the battery rod circuit, the other end of the resistance two ground connection；
The cathode output end of one end of the heating wire and the battery rod circuit, other end ground connection；
The in-phase input end of the third operational amplifier and one end of the negative tempperature coefficient thermistor, the resistance three-phase
Even, the other end of the negative tempperature coefficient thermistor is connected with the cathode output end of the battery rod circuit, the resistance three
The other end ground connection；And the negative tempperature coefficient thermistor and the heating wire are mutually close, so that the negative temperature coefficient
Thermistor is able to detect that the temperature of the heating wire；
The inverting input of the third operational amplifier is connected with one end of the resistance four, resistance five, the resistance four
The other end is grounded, and the other end of the resistance five is connected with the output end of the third operational amplifier；
The output end of third operational amplifier is also connected with the cathode of the microprocessor, second zener diode；It is described
The anode of second zener diode is connected with one end of the resistance six, the other end ground connection of the resistance six；
The positive power source terminal of the third operational amplifier is connected with the cathode output end of the battery rod circuit, negative supply termination
Ground.
5. electronic cigarette control circuit according to claim 1, which is characterized in that the battery rod circuit includes electronic cigarette electricity
Pond, switch, microprocessor, field-effect tube, cathode output end, cathode output end, the first divider resistance and the second divider resistance；
The anode of the electronic cigarette battery is connected with the cathode output end, cathode ground connection；The poles G of the field-effect tube with it is described
Microprocessor is connected, and the poles D are connected with the cathode output end, and the poles S are connected with the cathode of the electronic cigarette battery；
One end of first divider resistance is extremely connected with the D of the field-effect tube, the other end and the microprocessor, described the
One end of two divider resistances is connected；The other end of second divider resistance is connected with the anode of the electronic cigarette battery；
The switch is connected with the microprocessor, when the microprocessor detects that the switch is triggered, micro- place
It manages device and institute is controlled according to the voltage of the real-time voltage and first divider resistance both ends from the signal amplification module
The conduction ratio between the poles D of field-effect tube and the poles S is stated, is exported between the cathode output end and the cathode output end with controlling
Power.
6. electronic cigarette control circuit according to claim 5, which is characterized in that the battery rod circuit further includes the first electricity
Hold, third zener diode；
The microprocessor is connected with the cathode of one end of first capacitance, the third zener diode, first electricity
The other end of appearance is grounded, and the anode of the third zener diode is connected with the anode of the electronic cigarette.
7. electronic cigarette control circuit according to claim 5, which is characterized in that the battery rod circuit further includes current limliting electricity
Resistance；
One end of the current-limiting resistance is extremely connected with the D of the field-effect tube, and the other end is connected with the microprocessor.
8. according to claim electronic cigarette control circuit according to any one of claims 1 to 5, which is characterized in that described
Microprocessor is realized by chip SN8P27113AA, MC32P21 or HT46R01.
9. a kind of electronic cigarette, including such as claim 1 to 8 any one of them electronic cigarette control circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/095305 WO2016106493A1 (en) | 2014-12-29 | 2014-12-29 | Electronic cigarette control circuit, electronic cigarette, and electronic cigarette atomization control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208030261U true CN208030261U (en) | 2018-11-02 |
Family
ID=56283783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201490001617.9U Expired - Fee Related CN208030261U (en) | 2014-12-29 | 2014-12-29 | Electronic cigarette control circuit and electronic cigarette |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208030261U (en) |
| WO (1) | WO2016106493A1 (en) |
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| WO2016106493A1 (en) | 2016-07-07 |
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