CN109156898A - A kind of control circuit of electronic cigarette atomizing temperature - Google Patents
A kind of control circuit of electronic cigarette atomizing temperature Download PDFInfo
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- CN109156898A CN109156898A CN201811056646.6A CN201811056646A CN109156898A CN 109156898 A CN109156898 A CN 109156898A CN 201811056646 A CN201811056646 A CN 201811056646A CN 109156898 A CN109156898 A CN 109156898A
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- temperature
- heating wire
- electronic cigarette
- thermistor
- control module
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- Control Of Resistance Heating (AREA)
Abstract
The present invention provides a kind of control circuits of electronic cigarette atomizing temperature, control module receives the voltage value of measuring circuit output, calculate resistance value, the surface temperature of thermistor is learnt by control module, to issue control signal to PWM modulation module, pass through the turn-on time of electric current on PWM modulation module regulation heating silk.The present invention can be realized in the electronic cigarette of small size and be accurately controlled using simple peripheral hardware and circuit design real-time detection to the surface temperature of electronic cigarette heating wire；Pass through the detection and feedback of temperature, the temperature on heating wire surface is controlled, continue working heating wire on the best atomization temperature of tobacco tar, guarantee the usage experience of user, the problems such as preventing the atomization of the too low appearance of temperature insufficient, while avoiding the scald of the excessively high generation of temperature being charred even to user；It ensure that user under any circumstance using all available similar good usage experience.
Description
Technical field
The present invention relates to circuit design field, especially a kind of temperature-control circuit of electronic cigarette.
Background technique
The discovery of tobacco and use are in human society existing several centuries, with the raising and respectively of people's health consciousness
The continuous implementation that state's each department smoking ban enables, more and more people gradually start to abandon smoking or find its substitute, such big
Electronic cigarette comes into being under environment, and popularizes in the world rapidly.
Electronic cigarette common at this stage is divided into two kinds, and one is the portable electronic piece cigarette for copying real cigarette shape, structures
Design comparison is simple, is powered by miniature rechargeable battery, and the microphone in electronic cigarette detects the gas generated when user's smoking movement
Rheology is powered for heating wire, and then atomization smoke oil, generates smog.Another volume is larger, shape and the big phase of common cigarette
Very unlike, internal circuit configuration is more complicated, generally comprises one or more single-chip microcontrollers or dedicated integrated IC, therefore may be implemented
Relative complex function, such as the control etc. to power.
The tobacco tar of electronic cigarette is the important component part of one item, because it contains concentration nicotine component, therefore can be delayed
The Anxiety for solving the smoking cessation of smoker, reaches and effect similar in smoke.Tobacco tar manufacturing process at this stage graduallys mature, in taste
With real smoke is gradually approached in mouthfeel, but it is higher to the temperature requirement of heating, need in heating temperature range as defined in it
It can be made to behave oneself best.
Simulation electronic cigarette is because of the major part that its configuration design and portability are still electronic cigarette market now, but at this stage
Simulation electronic cigarette because of its shape and volumetric constraint, excessive circuit element, the function of realization can not be placed in circuit inside it
Can be more single, at the same it is inaccurate to the control of heating wire, as described above, tobacco tar, to the more demanding of temperature, temperature is too low
The atomization that may cause tobacco tar is insufficient, and excessively high easily lead to of temperature is charred phenomena such as even scalding.Further, since lacking corresponding
Temperature detection feedback mechanism causes electronic cigarette that can not obtain the real-time working condition of heating wire, such as is using preceding heating wire temperature
Degree is close to room temperature, and the temperature of heating wire is likely to be breached several hundred degrees Celsius in normal use process, under both of these case if
It is worthless that circuit, which provides identical input to heating wire,.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of control circuit of electronic cigarette atomizing temperature.The present invention
For the above problem that electronic cigarette at this stage occurs in the design and use stage, a kind of new solution is proposed, it is main real
Existing following two points function:
1. increasing its temperature rapidly when heating wire surface temperature is lower, it is allowed to reach ideal use in a short time
Temperature.
2. controlling the surface temperature of electronic cigarette heating wire in normal use process in preset steady state value.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of control circuit of electronic cigarette atomizing temperature includes heating wire, temperature detecting resistance, PWM modulation module, control module
And measuring circuit.
The temperature detecting resistance is a thermistor, and thermistor surface carries out insulation processing, and thermistor is close to fever
Silk, and be placed in parallel with heating wire, it is powered in circuit by constant-current source.
The measuring circuit is the voltmeter in parallel with temperature detecting resistance, measures, will measure to the pressure drop of temperature detecting resistance
As a result it is output to control module.
The control module receives the voltage value of measuring circuit output, in conjunction with the current value of the DC source output of thermistor
The resistance value of thermistor is calculated, i.e., the current value exported with the voltage value that measuring circuit exports divided by DC source is hindered
Value, the surface temperature of thermistor is learnt by the corresponding relationship of resistance value and temperature in register in control module, thus to
PWM modulation module issues control signal.
The PWM modulation module is connected between heating wire and the anode of battery, receives the control provided from control module
Signal, if the surface temperature for the heating wire that control module measures is higher than setting value, adjusting PWM modulation module reduces heating wire
The turn-on time of upper electric current, it is on the contrary then increase turn-on time, if surveyed surface temperature is equal with setting value, maintain current conducting
Time.
The heating wire selects manganin or zinc-nickel material that resistance is made, and is powered in electronic cigarette by rechargeable battery,
It generates heat at work, so that the heated atomization of electronic cigarette tobacco tar.
The method have the advantage is capable of generated heat using simple peripheral hardware and circuit design real-time detection to electronic cigarette
The surface temperature of silk, realizes in the electronic cigarette of small size and is accurately controlled；By the detection and feedback of temperature, to fever silk table
The temperature in face is controlled, and is continued working heating wire on the best atomization temperature of tobacco tar, is guaranteed the usage experience of user.It is anti-
Only the atomization of the too low appearance of temperature is insufficient, while avoiding being charred or even asking the scald etc. of user for the excessively high generation of temperature
Topic；Electronic cigarette is used in first time or after a long time placement, heating wire temperature near room temperature, system can be fast when user uses at this time
Speed is that heating wire power supply makes its temperature rise to normal working temperature, ensure that user is close using can get under any circumstance
Good usage experience.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention, and wherein I is constant-current source, and GND is ground connection.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
A kind of control circuit of electronic cigarette atomizing temperature includes heating wire, temperature detecting resistance, PWM modulation module, control module
And measuring circuit.
The temperature detecting resistance is a thermistor, and thermistor surface carries out insulation processing, and thermistor is close to fever
Silk, and be placed in parallel with heating wire, it is powered in circuit by current source.
The measuring circuit is the voltmeter in parallel with temperature detecting resistance, measures, will measure to the pressure drop of temperature detecting resistance
As a result it is output to control module.
The control module receives the voltage value of measuring circuit output, in conjunction with the current value of the DC source output of thermistor
The resistance value of thermistor is calculated, i.e., the current value exported with the voltage value that measuring circuit exports divided by DC source is hindered
Value, the surface temperature of thermistor is learnt by the corresponding relationship of resistance value and temperature in register in control module, thus to
PWM modulation module issues control signal.
The PWM modulation module is connected between heating wire and the anode of battery, receives the control provided from control module
Signal, if the surface temperature for the heating wire that control module measures is higher than setting value, adjusting PWM modulation module reduces heating wire
The turn-on time of upper electric current, it is on the contrary then increase turn-on time, if surveyed surface temperature is equal with setting value, maintain current conducting
Time.
The heating wire selects the materials such as manganin, zinc-nickel that resistance original part is made, and the resistance value of this kind of material becomes with temperature
Change minimum, be typically considered to fixed value resistance, powered in electronic cigarette by rechargeable battery, when normal work generates heat, so that electronic cigarette
The heated atomization of tobacco tar.
Fig. 1 is the structural diagram of the present invention, as shown in Figure 1, circuit mainly includes following sections: DC voltage source supplies
Temperature detecting resistance, PWM modulation module, control module and the corresponding measuring circuit of electric heating wire, current source supply.Electricity at present
Sub- cigarette leans on heating wire heating tobacco tar to be allowed to be atomized, to make user obtain experiencing with similar in smoking, therefore the atomization of tobacco tar is
The tobacco tar atomization temperature of most important link common electronic cigarette at this stage is chosen usually at 300 DEG C or so in electronic cigarette work
The electronic cigarette tobacco tar of certain brand learns that the best atomization temperature of the tobacco tar is T DEG C ± 3% by inquiring its service manual, wherein T
For the atomization temperature of tobacco tar.
Heating wire, which is immersed in tobacco tar, contacts heating wire adequately with tobacco tar, is portable and be used multiple times
Consider, electronic cigarette is usually powered by chargeable small battery, therefore should have corresponding power management and DC-DC in circuit
Module has no displaying due to unrelated with present subject matter in attached drawing of the present invention, with voltage source DC summary.
In order to learn the real time temperature of heating wire, elongated thermistor R made of a thermo-sensitive material is close to send out
Heated filament is placed, and carries out insulation processing to thermistor, prevents measurement error caused by thermistor R and heating wire short circuit, simultaneously
Place corrosion of the electronic cigarette tobacco tar to thermistor.Thermistor can be to obtain corresponding RT control in type selecting at manufacturer
Table, i.e., under the conditions of different temperature resistance value and temperature contrast relationship one by one.The thermistor is by constant current source power supply, power supply electricity
It flows minimum, that is, guarantees the electric current passed through to the influence very little (can ignore substantially) of thermistor R own temperature, since tobacco tar is
The good conductor of heat, while thermistor R is close to heating wire and places, thermistor itself is made into slender type shape, therefore can be with
The surface temperature of resistance R is thought very close or even identical with the surface temperature of heating wire.
In the normal course of work, power supply is heating wire power supply, and heating wire generates heat and is atomized tobacco tar, while DC source
Low current power supply, the heat fever that resistance R is transmitted by heating wire are provided for thermistor R, voltmeter measures thermistor R
Pressure drop, be sent to control module, while control module exchanges the current value of the DC source for R power supply for, can calculate and learn heat
The resistance value of quick resistance R at this time, by the RT table of comparisons it can be learnt that the temperature of thermistor at this time, is known, temperature-sensitive by explanation above
The temperature of resistance is regarded as the surface temperature of heating wire at this time.
Since the best atomization temperature of tobacco tar is T DEG C ± 3%, so in normal use process, if control module
The temperature of the thermistor R of acquisition is lower than this temperature range, then issues control signal from control module to PWM modulation module, adjust
The duty ratio of PWM waveform is saved, increases turn-on time, heating wire is made to heat up；Similarly, if the temperature of thermistor is higher than above-mentioned temperature
Turn-on time is then reduced in section accordingly；If the temperature of thermistor is in this interval range, when maintaining corresponding conducting
Between, maintain it in preferable operating temperature.
If the electronic cigarette temperature placed for a long time has fallen to room temperature, user using when control module detect temperature-sensitive
The temperature of resistance R differs larger with optimum temperature, i.e., sends to pwm control circuit and signal, turn-on time greatly increase
So that temperature rises to optimal use temperature to heating wire within a short period of time.In lasting use process, due to control module pair
The continuous detection of thermistor R temperature, so that the surface temperature of heating wire is controlled always in the range of optimal use temperature.
Claims (2)
1. a kind of control circuit of electronic cigarette atomizing temperature, it is characterised in that:
The control circuit of the electronic cigarette atomizing temperature, comprising heating wire, temperature detecting resistance, PWM modulation module, control module and
Measuring circuit；
The temperature detecting resistance is a thermistor, and thermistor surface carries out insulation processing, and thermistor is close to heating wire, and
It is placed in parallel with heating wire, is powered in circuit by constant-current source；
The measuring circuit is the voltmeter in parallel with temperature detecting resistance, is measured to the pressure drop of temperature detecting resistance, by measurement result
It is output to control module；
The control module receives the voltage value of measuring circuit output, calculates in conjunction with the current value of the DC source output of thermistor
The resistance value of thermistor out, i.e., the current value exported with the voltage value that measuring circuit exports divided by DC source obtain resistance value, lead to
The corresponding relationship for crossing resistance value and temperature in control module in register learns the surface temperature of thermistor, thus to PWM tune
Molding block issues control signal；
The PWM modulation module is connected between heating wire and the anode of battery, receives the control signal provided from control module,
If the surface temperature for the heating wire that control module measures is higher than setting value, adjusts PWM modulation module reduction heating wire and power on
The turn-on time of stream, it is on the contrary then increase turn-on time, if surveyed surface temperature is equal with setting value, when maintaining current conducting
Between.
2. the control circuit of electronic cigarette atomizing temperature according to claim 1, it is characterised in that:
The heating wire selects manganin or zinc-nickel material that resistance is made, and is powered in electronic cigarette by rechargeable battery, in work
Fever when making, so that the heated atomization of electronic cigarette tobacco tar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056646.6A CN109156898A (en) | 2018-09-11 | 2018-09-11 | A kind of control circuit of electronic cigarette atomizing temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056646.6A CN109156898A (en) | 2018-09-11 | 2018-09-11 | A kind of control circuit of electronic cigarette atomizing temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109156898A true CN109156898A (en) | 2019-01-08 |
Family
ID=64894887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811056646.6A Pending CN109156898A (en) | 2018-09-11 | 2018-09-11 | A kind of control circuit of electronic cigarette atomizing temperature |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110025048A (en) * | 2019-04-03 | 2019-07-19 | 深圳市合元科技有限公司 | The releasing control method of electric heating Smoke-generating System and volatile compound |
| CN111418908A (en) * | 2020-03-16 | 2020-07-17 | 深圳市吉迩科技有限公司 | Aerosol generating device, generating system and aerosol generating method |
| WO2021047423A1 (en) * | 2019-09-12 | 2021-03-18 | 深圳麦时科技有限公司 | Electronic cigarette device and heating method therefor, and computer storage medium |
| CN112841755A (en) * | 2021-03-09 | 2021-05-28 | 云南中烟工业有限责任公司 | Heating element heating program regulating method and method for improving flue gas release uniformity |
| CN113907421A (en) * | 2021-08-31 | 2022-01-11 | 深圳麦时科技有限公司 | Heating assembly, electronic atomization device and control method of heating assembly |
| CN113907423A (en) * | 2021-08-31 | 2022-01-11 | 深圳麦时科技有限公司 | Heating assembly, electronic atomization device and control method of heating assembly |
| CN113907422A (en) * | 2021-08-31 | 2022-01-11 | 深圳麦时科技有限公司 | Heating assembly, electronic atomization device and control method of heating assembly |
| CN114009847A (en) * | 2021-11-24 | 2022-02-08 | 海南摩尔兄弟科技有限公司 | Control unit for electronic atomization device, electronic atomization device and control method |
| CN114145508A (en) * | 2021-12-24 | 2022-03-08 | 湖南省拓联精密科技有限公司 | Temperature control method and device for electronic cigarette, electronic cigarette and medium |
| CN114376275A (en) * | 2022-01-14 | 2022-04-22 | 深圳麦时科技有限公司 | Aerosol generating device, control method and control device thereof, and storage medium |
| CN113907422B (en) * | 2021-08-31 | 2024-07-05 | 深圳麦时科技有限公司 | Heating assembly, electronic atomizing device and control method of heating assembly |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110025048A (en) * | 2019-04-03 | 2019-07-19 | 深圳市合元科技有限公司 | The releasing control method of electric heating Smoke-generating System and volatile compound |
| WO2021047423A1 (en) * | 2019-09-12 | 2021-03-18 | 深圳麦时科技有限公司 | Electronic cigarette device and heating method therefor, and computer storage medium |
| CN111418908A (en) * | 2020-03-16 | 2020-07-17 | 深圳市吉迩科技有限公司 | Aerosol generating device, generating system and aerosol generating method |
| CN112841755B (en) * | 2021-03-09 | 2022-07-19 | 云南中烟工业有限责任公司 | Heating element heating program regulating and controlling method and method for improving flue gas release uniformity |
| CN112841755A (en) * | 2021-03-09 | 2021-05-28 | 云南中烟工业有限责任公司 | Heating element heating program regulating method and method for improving flue gas release uniformity |
| CN113907423B (en) * | 2021-08-31 | 2023-10-20 | 深圳麦时科技有限公司 | Heating assembly, electronic atomizing device and control method of heating assembly |
| CN113907422A (en) * | 2021-08-31 | 2022-01-11 | 深圳麦时科技有限公司 | Heating assembly, electronic atomization device and control method of heating assembly |
| CN113907423A (en) * | 2021-08-31 | 2022-01-11 | 深圳麦时科技有限公司 | Heating assembly, electronic atomization device and control method of heating assembly |
| WO2023029866A1 (en) * | 2021-08-31 | 2023-03-09 | 深圳麦时科技有限公司 | Heating assembly, electronic atomization device and control method for heating assembly |
| CN113907421A (en) * | 2021-08-31 | 2022-01-11 | 深圳麦时科技有限公司 | Heating assembly, electronic atomization device and control method of heating assembly |
| CN113907421B (en) * | 2021-08-31 | 2024-06-18 | 深圳麦时科技有限公司 | Heating assembly, electronic atomizing device and control method of heating assembly |
| CN113907422B (en) * | 2021-08-31 | 2024-07-05 | 深圳麦时科技有限公司 | Heating assembly, electronic atomizing device and control method of heating assembly |
| CN114009847A (en) * | 2021-11-24 | 2022-02-08 | 海南摩尔兄弟科技有限公司 | Control unit for electronic atomization device, electronic atomization device and control method |
| CN114009847B (en) * | 2021-11-24 | 2024-04-05 | 海南摩尔兄弟科技有限公司 | Control unit for electronic atomizing device, electronic atomizing device and control method |
| CN114145508A (en) * | 2021-12-24 | 2022-03-08 | 湖南省拓联精密科技有限公司 | Temperature control method and device for electronic cigarette, electronic cigarette and medium |
| CN114145508B (en) * | 2021-12-24 | 2024-01-16 | 湖南省英洛康科技有限公司 | Temperature control method and device of electronic cigarette, electronic cigarette and medium |
| CN114376275A (en) * | 2022-01-14 | 2022-04-22 | 深圳麦时科技有限公司 | Aerosol generating device, control method and control device thereof, and storage medium |
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Effective date of registration: 20220601 Address after: B201, zero one square, Xi'an Software Park, 72 Keji 2nd Road, high tech Zone, Xi'an City, Shaanxi Province, 710000 Applicant after: Tuoer Microelectronics Co.,Ltd. Address before: 710073 No. 2, Taibai South Road, Yanta District, Xi'an City, Shaanxi Province Applicant before: XIDIAN University |
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Application publication date: 20190108 |