CN107072312A - Whether tobacco tar exhausts in a kind of detection electronic cigarette method and a kind of electronic cigarette - Google Patents

Whether tobacco tar exhausts in a kind of detection electronic cigarette method and a kind of electronic cigarette Download PDF

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Publication number
CN107072312A
CN107072312A CN201580000257.XA CN201580000257A CN107072312A CN 107072312 A CN107072312 A CN 107072312A CN 201580000257 A CN201580000257 A CN 201580000257A CN 107072312 A CN107072312 A CN 107072312A
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China
Prior art keywords
heating wire
electronic cigarette
inch
microprocessor
jian
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CN201580000257.XA
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Chinese (zh)
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CN107072312B (en
Inventor
刘秋明
向智勇
韦志林
丁建军
牛建华
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Liaoning Hongxiang Steel Pipe Co ltd
Kimree Technology Co Ltd
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Liaoning Hongxiang Steel Pipe Co ltd
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Publication of CN107072312A publication Critical patent/CN107072312A/en
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Publication of CN107072312B publication Critical patent/CN107072312B/en
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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
    • A24F40/10—Devices using liquid inhalable precursors

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  • Control Of Resistance Heating (AREA)

Abstract

Whether tobacco tar exhausts in a kind of detection electronic cigarette method and a kind of electronic cigarette, solving electronic cigarette in the prior art can not allow user to know whether tobacco tar will exhaust, and continue to smoke when tobacco tar will exhaust, and causing the technical problem of burning cotton, methods described includes step：S1, when detecting smoking signal, into electronic cigarette be used for be atomized tobacco tar heating wire (2,31,50) power supply so that the heating wire (2,31,50) work；S2, the temperature changing speed for obtaining the heating wire (2,31,50), and when the pace of change is more than preset value, determine that tobacco tar exhausts in the electronic cigarette, and stop as the heating wire (2,31,50) power supply；Realize and use electronic cigarette in user, and tobacco tar, when will exhaust, control electronic cigarette is stopped in time, occurs to avoid burning cotton phenomenon, so as to improve user experience.

Description

Whether tobacco tar exhausts in a kind of detection electronic cigarette method and a kind of electronic cigarette
Specification denomination of invention: a kind of to detect the method and a kind of electronic cigarette technical field that whether tobacco tar exhausts in electronic cigarette
[0001] the present invention relates to the method that whether exhausts of tobacco tar and a kind of electronic cigarettes in electronic cigarette technical field more particularly to a kind of detection electronic cigarette.
Background technique
[0002] electronic cigarette is a kind of relatively conventional simulation cigarette electronic product, is mainly used for smoking cessation and cigarette substitute；The structure of electronic cigarette mainly includes battery component and atomizing component；When the smoking for detecting smoker acts inch, battery component is atomizing component power supply, so that atomizing component is in Jian and opens state；After atomizing component Jian is opened, heating wire fever, tobacco tar, which is heated, evaporates atomization, forms the aerosol of simulated flue gas, so that user be allowed to have a kind of similar feeling smoked in suction inch.
[0003] existing electronic cigarette is sufficient in smoking leading portion inch tobacco tar, thus flue gas pure in mouth feel, but electronic cigarette uses opaque shoe cream room, user can not see the tobacco tar surplus in shoe cream room, and electronic cigarette does not have the prompt of tobacco tar surplus, alarm function yet, leads to smoking back segment, and tobacco tar tails off or exhaust inch, continue to smoke and lead to the case where burning cotton peculiar smell, to bring very bad experience to user.
[0004] that is, existing in the prior art, electronic cigarette can not allow user to know whether tobacco tar will exhaust, and will exhaust inch in tobacco tar and continue to smoke, and lead to the technical issues of burning cotton.
Technical problem
[0005] present invention is for existing in the prior art, electronic cigarette can not allow user to know whether tobacco tar will exhaust, and inch will be exhausted in tobacco tar and continues to smoke, and lead to the technical issues of burning cotton, a kind of method and a kind of electronic cigarette detecting whether tobacco tar exhausts in electronic cigarette is provided, realizes and uses electronic cigarette in user, and tobacco tar will exhaust inch, and inch control electronic cigarette stops working, and occurs to avoid cotton phenomenon is burnt, to improve the user experience.
Solution to the problem
Technical solution
[0006] on the one hand, the present invention provides the method whether tobacco tar in a kind of detection electronic cigarette exhausts, include the following steps [0007] Sl, detecting smoking signal inch, into electronic cigarette for atomization smoke oil heating wire power so that the heating wire work；
[0008] temperature changing speed of S2, the acquisition heating wire, and it is greater than preset value inch in the pace of change, determine that tobacco tar exhausts in the electronic cigarette, and stop being that the heating wire is powered.
[0009] on the other hand, the present invention provides a kind of electronic cigarettes, comprising: detection control circuit for the heating wire of atomization smoke oil, and is the power supply circuit of the detection control circuit and heating wire power supply；
[0010] the detection control circuit is used to detect smoking signal inch, the power supply circuit is controlled to power to the heating wire, so that the heating wire work, and obtain the temperature changing speed of the heating wire, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, and stops being that the heating wire is powered.
Advantageous effect of the invention
Beneficial effect
[0011] due to detecting smoking signal inch, powering into electronic cigarette for the heating wire of atomization smoke oil, so that the heating wire works in the present invention program；In heating wire work inch, the temperature changing speed of the heating wire is obtained, and is greater than preset value inch in the pace of change, determines that tobacco tar exhausts in the electronic cigarette, and stops being that the heating wire is powered.That is, the characteristics of being greater than heating wire specific heat capacity using tobacco tar specific heat capacity (ought have tobacco tar inch tobacco tar that can absorb heating wire and send out heat thermogenetic), so that rate of rise in temperature ratio of the heating wire in unit inch does not have tobacco tar inch slow, by detecting heating wire temperature changing speed, to know whether heating wire has contacted tobacco tar, it to judging whether tobacco tar exhausts in electronic cigarette, and is determining that tobacco tar will exhaust inch, is stopping as heating wire power supply；Efficiently solving electronic cigarette in the prior art can not allow user to know whether tobacco tar will exhaust, and inch will be exhausted in tobacco tar and continues to smoke, and lead to the technical issues of burning cotton, it realizes and uses electronic cigarette in user, and tobacco tar will exhaust inch, and inch control electronic cigarette stops working, and occurs to avoid cotton phenomenon is burnt, to improve the user experience.
To the brief description of accompanying drawing
Detailed description of the invention
[0012] Fig. 1 is the method flow diagram that whether tobacco tar exhausts in the first detection electronic cigarette provided in an embodiment of the present invention；[0013] Fig. 2 is the method flow diagram that whether tobacco tar exhausts in second provided in an embodiment of the present invention detection electronic cigarette；[0014] Fig. 3 is a kind of circuit structure that heating wire temperature is detected by thermocouple sensor provided in an embodiment of the present invention Schematic diagram；
[0015] Fig. 4 is the method flow diagram that whether tobacco tar exhausts in the third detection electronic cigarette provided in an embodiment of the present invention；[0016] Fig. 5 is a kind of electronic cigarette internal structure block diagram by detection heating wire anode-cathode voltage to detect heating wire temperature change provided in an embodiment of the present invention；
[0017] Fig. 6 is the method flow diagram that whether tobacco tar exhausts in 4th kind provided in an embodiment of the present invention detection electronic cigarette；[0018] Fig. 7 is the first electronic cigarette internal circuit configuration block diagram provided in an embodiment of the present invention；
[0019] Fig. 8 A is a kind of electronic cigarette internal circuit configuration block diagram that heating wire temperature change is detected based on temperature detection sub-circuit provided in an embodiment of the present invention；
[0020] Fig. 8 B is a kind of electronic cigarette internal circuit configuration block diagram that heating wire temperature change is detected based on voltage detecting sub-circuit provided in an embodiment of the present invention；
[0021] Fig. 9 is a kind of microprocessor and its peripheral circuit schematic diagram provided in an embodiment of the present invention；
[0022] Figure 10 is a kind of circuit diagram by partial pressure detection heating wire anode-cathode voltage provided in an embodiment of the present invention；[0023] Figure 11 is linear voltage-stabilizing circuit schematic diagram employed in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention；
[0024] Figure 12 is reset circuit schematic diagram employed in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention；[0025] Figure 13 is Display and Alarm Circuit schematic diagram employed in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention；
[0026] Figure 14 is that Jian employed in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention closes trigger circuit schematic diagram；
[0027] Figure 15 A is the Charge Management sub-circuit schematic diagram of power supply circuit employed in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention；
[0028] Figure 15 B is the external charging sub-circuit schematic diagram of power supply circuit employed in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention；
[0029] Figure 16 is battery voltage detection circuit schematic diagram employed in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention；
[0030] Figure 17 is battery protecting circuit schematic diagram employed in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention. Embodiments of the present invention
[0031] embodiment of the present invention is by providing a kind of method that whether exhausts of tobacco tar in detection electronic cigarette, user can not be allowed to know whether tobacco tar will exhaust for solving electronic cigarette in the prior art, and inch will be exhausted in tobacco tar and continues to smoke, and lead to the technical issues of burning cotton, it realizes in user using electronic cigarette, and tobacco tar will exhaust inch and inch control electronic cigarette stops working, occur to avoid cotton phenomenon is burnt, to improve the user experience.
[0032] technical solution of the embodiment of the present invention is in order to solve the above technical problems, general thought is as follows:
[0033] it the embodiment of the invention provides a kind of method that whether exhausts of tobacco tar in detection electronic cigarette, comprising steps of Sl, detecting smoking signal inch, powers into electronic cigarette for the heating wire of atomization smoke oil, so that the heating wire works；S2, the temperature changing speed for obtaining the heating wire, and it is greater than preset value inch in the pace of change, determine that tobacco tar exhausts in the electronic cigarette, and stop being that the heating wire is powered.
[0034] visible, in embodiments of the present invention, the characteristics of being greater than heating wire specific heat capacity using tobacco tar specific heat capacity (ought have tobacco tar inch tobacco tar that can absorb heating wire and send out heat thermogenetic), so that rate of rise in temperature ratio of the heating wire in unit inch does not have tobacco tar inch slow, by detecting heating wire temperature changing speed, to know whether heating wire has contacted tobacco tar, to judge whether tobacco tar exhausts in electronic cigarette, and determining that tobacco tar will exhaust inch, stop as heating wire power supply；Efficiently solving electronic cigarette in the prior art can not allow user to know whether tobacco tar will exhaust, and inch will be exhausted in tobacco tar and continues to smoke, and lead to the technical issues of burning cotton, it realizes and uses electronic cigarette in user, and tobacco tar will exhaust inch, and inch control electronic cigarette stops working, and occurs to avoid cotton phenomenon is burnt, to improve the user experience.
[0035] for a better understanding of the foregoing technical solution, the above described technique is demenstrated in detail in conjunction with appended figures and specific embodiments, it should be understood that the specific features in the embodiment of the present invention and embodiment are the detailed description to technical scheme, rather than the restriction to technical scheme, in the absence of conflict, the technical characteristic in the embodiment of the present invention and embodiment can be combined with each other.
[0036] embodiment one
[0037] referring to FIG. 1, the embodiment of the invention provides the methods whether tobacco tar in a kind of detection electronic cigarette exhausts, comprising the following steps:
[0038] Sl, detecting smoking signal inch, into electronic cigarette for atomization smoke oil heating wire power so that the heating wire work；
[0039] temperature changing speed of S2, the acquisition heating wire, and it is greater than preset value inch in the pace of change, it determines Tobacco tar exhausts in the electronic cigarette, and stops being that the heating wire is powered.
[0040] specifically, setting heating wire in the specific heat capacity of no adherency tobacco tar inch as A, the specific heat capacity of tobacco tar is B (being greater than A), and when the specific heat capacity for adhering to tobacco tar inch on heating wire is C, wherein C is greater than A and is less than B;From the physical definition of specific heat capacity: unit mass object changes the absorption of unit temperature inch or the interior of release can, that is to say, that the specific heat capacity of substance can directly reflect its temperature changing speed.Can know the current specific heat capacity of heating wire in the present solution, by the temperature changing speed of detection heating wire, then by the temperature changing speed, i.e., known to heating wire whether be stained with tobacco tar.In other words, by judging whether heating wire temperature changing speed is greater than preset value, judge whether the current specific heat capacity of heating wire is approximate in no adherency specific heat capacity of tobacco tar inch with heating wire, it is greater than preset value inch in heating wire temperature changing speed, illustrate that itself specific heat capacity of the current specific heat capacity and heating wire of heating wire (A) is close, and then show there is no the tobacco tar amount of adherency tobacco tar or adherency seldom on heating wire, it can determine that tobacco tar exhausts in the electronic cigarette, and stop being that the heating wire is powered.
[0041] further, in the specific implementation process, the temperature value that inch is carved can be carved and terminated by the starting inch of section between a certain default inch of acquisition, and the temperature change by calculating heating wire between the two temperature values and default inch, please refer to Fig. 2, the electronic cigarette is provided with the Oil Guide component for contacting and be the heating wire fuel feeding with the heating wire, and the heating wire is atomized the tobacco tar on the Oil Guide component to form smog, and the step S2 specifically includes sub-step
[0042] S21, the first temperature value for obtaining the heating wire is carved in the first inch；
[0043] S22, in the heating wire temperature rise to preset second temperature value inch, obtain the heating wire temperature from first temperature value rise to the second temperature value needed between inch, wherein, the second temperature value is less than or equal to the temperature value of Oil Guide component cracking inch；
[0044] S23, based between first temperature value, the second temperature value and the inch, calculate the temperature changing speed of the heating wire, and it is greater than the preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, is that the heating wire is powered to stop.
[0045] it need to be noted that be, in above-mentioned steps S22, the temperature of Oil Guide component cracking inch is the maximum temperature that the Oil Guide component can bear, in a particular application, Oil Guide component can be heated to the temperature of Jian beginning discoloration inch and be set as the value upper limit of the second temperature value, according to the unlike material of Oil Guide component, the temperature of Jian beginning discoloration inch can be different, are not especially limited here.
[0046] in the specific implementation process, the temperature of the heating wire, the temperature sensing can be detected by temperature sensor Device is thermocouple temperature sensor, and the thermocouple temperature sensor is connected with the end of the heating wire.As shown in figure 3, the thermocouple temperature sensor includes: the first end line 32 and the second end line 33 connecting with the end 311 of heating wire 31;Wherein, the first end line 32 and the second end line 33 use the wire (including alloy wire and non-alloyed silk) of two kinds of unlike materials, such as copper, iron or constantan.In Fig. 3, one end of the other end 312 opposite with end 31 1 of heating wire 31 and electric wire 34 (- as material conducting wire) is connect；The other end of electric wire 34 is connect with anode, and the other end of the second end line 33 is connected to ground, for constituting the current supply circuit of heating wire 31；One end of the separate heating wire 31 of first end line 32 and the second end line 33 is connect with signal amplifier 35, for constituting the temperature detection circuit of heating wire 31.On the one hand, getting smoking signal inch, the microprocessor 36 of electronic cigarette controls the current supply circuit conducting of heating wire 31,31 heating power of heating wire, it is poor in the first end line 32 (such as nickel chromium triangle material) and second end line 33 (such as constantan material) both ends formation temperature, according to thermocouple temperature measurement principle, electromotive force signal is exported in high impedance alloy wire and the cold end of low impedance metal silk；On the other hand, the signal input part of signal amplifier 35 is connect with the cold end of the first end line 32 and the second end line 33, to obtain the electromotive force signal, and it is amplified, further amplified electromotive force signal is sent into the microprocessor 36 of electronic cigarette and is handled, to obtain the current temperature value of heating wire 31.
[0047] in the specific implementation process, the resistance variations amplitude of detection heating wire can be passed through, to obtain its temperature changing speed, the i.e. described step S2 specifically: obtain the voltage value of voltage detecting point in the circuit loop where the heating wire, resistance variations amplitude of the heating wire in default inch is calculated based on the voltage value, and the temperature changing speed of the heating wire is obtained based on the amplitude of variation, and it is greater than preset value inch in the pace of change, determine that tobacco tar exhausts in the electronic cigarette, and stop being that the heating wire is powered；Wherein, the resistance variation with temperature of the heating wire and change.Wherein, the voltage detecting point can be the heating wire end.
[0048] specifically, in this programme, by detection heating wire between default inch (i.e. between unit inch) in voltage value, obtain the resistance variations amplitude of heating wire, so as to knowing the temperature changing speed of heating wire, then the current specific heat capacity of heating wire can be known by the temperature changing speed；Judge whether heating wire resistance variations speed is greater than preset value, judge whether the current specific heat capacity of heating wire is approximate in no adherency specific heat capacity of tobacco tar inch with heating wire, it is greater than preset value inch in resistance variations speed, illustrate that the current specific heat capacity of heating wire is close with heating wire itself specific heat capacity, and then show there is no the tobacco tar amount of adherency tobacco tar or adherency seldom on heating wire, it can determine that tobacco tar exhausts in the electronic cigarette, and stop being that the heating wire is powered. [0049] referring to FIG. 4, the step S2 specifically includes sub-step:
[0050] S24, the first voltage value for obtaining the heating wire end is carved in the first inch, the second voltage value for obtaining the heating wire end is carved in the second inch, wherein second inch is carved the default inch is differed with first inch quarter between；
[0051] S25, calculate based on the first voltage value and the second voltage value resistance variations amplitude of the resistance of the heating wire in the default inch, and the temperature changing speed of the heating wire is obtained based on the amplitude of variation, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, is that the heating wire is powered to stop.
[0052] specific, during heating wire work, with the accumulation between fever inch, the resistance of heating wire is continually changing, from rating formula P=U 2/R: under the premise of the heating power (P)-of heating wire is determined, the voltage (U) of heating wire end rise with the rising of heating wire resistance (R) or with heating wire resistance (R) decline and decline.That is, the variation of heating wire anode-cathode voltage (U) can reflect the variation of heating wire resistance (R), the voltage value at (i.e. the first inch quarter) and end inch quarter (i.e. the second inch quarter) is carved by obtaining the starting inch between the default inch respectively, and the resistance (Rtl) that heating wire is carved in the first inch and the resistance (Rt2) that the second inch is carved are determined based on the two voltage values (i.e. the first voltage value and second voltage value), further determine that heating wire (resistance variations amplitude in 0 are as follows: IRtl-Rt2l/t between the default inch, further, the temperature changing speed of heating wire is known by IRtl-Rt2l/t, and it is greater than preset value inch in the temperature changing speed, illustrate the current specific heat of heating wire Appearance is close with heating wire itself specific heat capacity, and then shows do not have the tobacco tar amount of adherency tobacco tar or adherency seldom on heating wire, can determine that tobacco tar exhausts in the electronic cigarette, and stops being that the heating wire is powered；Wherein, it is not specifically limited here depending on the specific heat capacity characteristic of the preset value foundation heating wire.
[0053] in the specific implementation process, measuring the heating wire anode-cathode voltage obtained may be larger, in order to by obtaining a lesser voltage value, and the biggish voltage in heating wire end is reflected by this lesser voltage value, to reduce voltage measurement difficulty, please refer to Fig. 5, it can be in series in the current supply circuit of the heating wire 50 divider resistance 51 (for dividing), the voltage value of 50 end of heating wire is obtained in the step S2, specifically: obtain the partial pressure value at 51 both ends of divider resistance, and supply voltage based on the current supply circuit and the partial pressure value obtain the voltage value of 50 end of heating wire.Specifically, referring to FIG. 5, being provided with microprocessor 52 and the first Jian being electrically connected with microprocessor 52 and heating wire 50 pass part 53 and the pass the 2nd Jian part 54 in the electronic cigarette ；Wherein, microprocessor 52, the first Jian close part 53 and the heating wire 50 is connected to electronic cigarette battery both ends and forms the first circuit, and the microprocessor 52, the 2nd Jian close part 54, the divider resistance 51 and the heating wire 50 and be connected to electronic cigarette battery both ends formation second servo loop；Inch is opened when the microprocessor 52 controls the pass the first Jian 53 Jian of part, it then controls the 2nd Jian and closes the closing of part 54, so that the heating wire 50 works, inch is opened when the microprocessor 52 controls the pass the 2nd Jian 54 Jian of part, it then controls the first Jian and closes the closing of part 53, to obtain the voltage value of 50 end of heating wire.
[0054] in the specific implementation process, in order to determine electronic cigarette tobacco tar will exhaust inch remind user, please refer to Fig. 6, upon step s 2, the method also includes steps:
[0055] S3, output warning message, to remind user that tobacco tar exhausts；Wherein, the warning message includes text information, voice messaging, vibration information and light information at least one.It is corresponding, display module for showing text information, audio-frequency module, the vibration module for issuing vibration information or the LED light for issuing light information for broadcast voice information can be set in electronic cigarette, wherein, the light information etc. that light information can be different for brightness different light information or color.
[0056] it to sum up, by implementing the application above-mentioned technical proposal, smokes in user, and tobacco tar will exhaust inch, can and inch control electronic cigarette stop working, to avoid burn cotton phenomenon occur, user's tobacco tar can also be reminded to exhaust with inch, to improve the user experience.
[0057] embodiment two
[0058] based on the same inventive concept, referring to FIG. 7, the present invention also provides a kind of electronic cigarettes, comprising: detection control circuit 1, it for the heating wire 2 of atomization smoke oil, and is the power supply circuit 3 of the detection control circuit 1 and the power supply of the heating wire 2;
[0059] the detection control circuit 1 is used to detect smoking signal inch, the power supply circuit 3 is controlled to power to the heating wire 2, so that the heating wire 2 works, and obtain the temperature changing speed of the heating wire, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, and stops being that the heating wire is powered.
[0060] in the specific implementation process, Fig. 8 A, the temperature detection sub-circuit 11 that the detection control circuit 1 includes: microprocessor 10 and connect with the microprocessor 10 are please referred to；The microprocessor 10 is used to detect smoking signal inch, controls the power supply circuit 3 and power to the heating wire 2, so that the heating wire 2 works；The temperature detection sub-circuit 11 is used to obtain the temperature of the heating wire 2 in the heating wire 2 work inch；It is described micro- Processor 10 is also used to the temperature changing speed based on heating wire 2 described in the temperature computation, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, and controls the power supply circuit 3 and stop being that the heating wire 2 is powered.Wherein, the temperature that temperature sensor detects the heating wire 2 can be used in temperature detection sub-circuit 11, and the temperature sensor is thermocouple temperature sensor, and the thermocouple temperature sensor is connected with the end of the heating wire, as shown in figure 3, no longer repeating one by one here.
[0061] in the specific implementation process, Fig. 8 B, the voltage detecting sub-circuit 12 that the detection control circuit 1 includes: microprocessor 10 and connect with the microprocessor 10 are please referred to；
[0062] microprocessor 10 is used to detect smoking signal inch, controls the power supply circuit 3 and powers to the heating wire 2, so that the heating wire 2 works；
[0063] voltage value of voltage detecting point (such as heating wire end) in the circuit loop where the voltage detecting sub-circuit 12 is used to obtain the heating wire 2 in the heating wire 2 work inch；
[0064] microprocessor 10 is also used to calculate resistance variations amplitude of the heating wire 2 in default inch based on the voltage value, and the temperature changing speed of the heating wire 2 is obtained based on the amplitude of variation, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, and controls the power supply circuit 3 and stop being that the heating wire 2 is powered；Wherein, the resistance variation with temperature of the heating wire 2 and change.
It [0065] further, is heating wire end inch in the voltage detecting point, the voltage detecting sub-circuit 12 includes: referring still to Fig. 8 B
[0066] division module 121 being connect with the microprocessor 10 and 2 end of the heating wire, it can read voltage for being converted to the voltage value, so that the microprocessor 10 calculates resistance variations amplitude of the heating wire 2 in default inch based on the readable voltage, and the temperature changing speed of the heating wire 2 is obtained based on the amplitude of variation, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, is that the heating wire 2 is powered to stop；Wherein, it is described can read voltage be the voltage that can identify of the microprocessor 10.
[0067] further, referring still to Fig. 8 B, the detection control circuit 1 further include: the first Jian connecting with the microprocessor 10 closes part 13;The microprocessor 10, which closes part 13 for controlling the first Jian, leads on-off Jian, power with to control the power supply circuit 3 to the heating wire 2 or stops powering；
[0068] the voltage detecting sub-circuit 12 further include: the 2nd Jian connecting with the microprocessor 10 closes part 122;The microprocessor 10 leads on-off Jian for controlling the pass the 2nd Jian part 122, and to control, the detection of voltage detecting sub-circuit 12 obtains the voltage value or stopping detects the voltage value. [0069] in the specific implementation process, it is field-effect tube that the first Jian, which closes part 13 and the pass the 2nd Jian part 122,；The drain electrode that first Jian closes part 13 is connect with the heating wire 2, first Jian closes the source electrode ground connection of part 13, the microprocessor 10 is connect with the first Jian grid for closing part 13, part 13 is closed for controlling the first Jian and leads on-off Jian, power with to control the power supply circuit 3 to the heating wire 2 or stops powering；The division module 121 includes first resistor, second resistance and first capacitor, one end of the first resistor is connect with the heating wire 2, the other end of the first resistor is connect with the second resistance, the first capacitor and the microprocessor, and the second resistance is connected and is grounded with the other end of the first capacitor；The drain electrode that 2nd Jian closes part 122 is connect with the heating wire 2 and the first resistor, 2nd Jian closes the source electrode ground connection of part 122, the microprocessor 10 is connect with the 2nd Jian grid for closing part 122, part 122 is closed for controlling the 2nd Jian and leads on-off Jian, obtains to control the division module 121 and the voltage value is converted to and read voltage or can stop obtaining the voltage value.
[0070] by taking a kind of specific internal circuit of electronic cigarette as an example, please refer to Fig. 9 and Figure 10, heating wire 2, the first Jian close part 13 in single-chip microcontroller STM32F030K6, Fig. 8 B in Fig. 8 B in 10 corresponding diagram 9 of microprocessor and the 2nd Jian closes part 122 and respectively corresponds heating wire L, field-effect tube and Q2 in Figure 10;Letter in Fig. 9 and Figure 10 on terminals indicates transmitted signal identification, is marked with multiple terminals of identical signal identification to be connection relationship, foretell at another sunset, other physical circuit figures equally follow this rule in the present embodiment.In conjunction with Fig. 9 and Figure 10, the 0+ of heating wire L (generally 0.3 Europe or so) terminates anode B+, the end 0- of heating wire L is connect with the drain electrode of field-effect tube Q1, the source electrode of field-effect tube Q1 is grounded, No. 14 ends pin PB0 of single-chip microcontroller STM32F030K6 are connect with the grid of field-effect tube Q1, on-off Jian is led to control Q1 for sending the PWM wave signal for being identified as DRIV, so that the current supply circuit for controlling heating wire L leads on-off Jian.
[0071] further, first resistor, second resistance and the first capacitor of the division module 121 in Fig. 8 B respectively correspond resistance R38, resistance R39 and capacitor C22 in Fig. 10.One end of resistance R38 is connect with the end 0- of heating wire L, and the other end of resistance R38 is connect with No. 8 ends pin PA2 of resistance R39, capacitor C22 and single-chip microcontroller STM32F030K6, and resistance R39 is connected and is grounded with the other end of capacitor C22.The drain electrode of field-effect tube Q2 is connect with the end 0- of heating wire L and resistance R38, the source electrode of field-effect tube Q2 is grounded, No. 15 ends pin PB1 of single-chip microcontroller STM32F030K6 are connect with the grid of field-effect tube Q2, on-off Jian is led for controlling field-effect tube Q2, to control the voltage value that the division module that is made of resistance R38, R39 and capacitor C22 obtains the end heating wire 0-, and it the voltage value is converted into single-chip microcontroller STM32F030K6 can read voltage or stop obtaining the voltage value.This It is due to the model according to microprocessor, its voltage value that can be identified may be limited, such as in Fig. 9 and specific implementation circuit shown in Fig. 10, single-chip microcontroller STM32F030K6 can read lower than the voltage value of 3V, however electronic cigarette battery is usually 4.2V or so to the supply voltage of heating wire L, i.e. in the normal situation of battery capacity, the 0- terminal voltage value of heating wire L is 3V or more, by the way that the division module is arranged in this programme, to allow the microprocessor to read the voltage value for being lower than 3V by division module, and read the voltage value at the end heating wire 0- indirectly by this lower voltage value.
[0072] it should be noted, the drain electrode of field-effect tube Q1 is directly connect with the end 0- of heating wire L, the drain electrode of field-effect tube Q2 is connect by the end 0- of resistance R41 and heating wire L with certain resistance value (such as 3 Europe), in the case where Q1 and Q2 is connected with inch, the electric current exported from the end 0- of heating wire L can flow to ground directly from Q1, and 2 branch of this inch Q does not work.Therefore, in the present solution, control logic for Q1 and Q2 are as follows: when single-chip microcontroller ST M32F030K6 control field-effect tube Q1 Jian opens inch, then field-effect tube Q2 closing is controlled, so that heating wire L works；Inch is opened when single-chip microcontroller STM32F030K6 controls field-effect tube Q2 Jian, then field-effect tube Q1 closing is controlled, to obtain the voltage value of the end heating wire L.Road in device r
[0073] in the specific implementation process, referring still to Fig. 8 B, the electronic cigarette further include: the linear voltage-stabilizing circuit 4 being connect with the power supply circuit 3 and the microprocessor 10, the operating voltage provided for adjusting the power supply circuit 3 to the microprocessor 10 so that adjust after stable operating voltage the microprocessor 10 rated operational voltage.Specifically, as shown in figure 11, for linear voltage-stabilizing circuit schematic diagram employed in a kind of electronic cigarette internal circuit, in conjunction with Fig. 9 and Figure 11, the rated operational voltage of single-chip microcontroller STM32F030K6 is 3V in Fig. 9, battery positive voltage is input in voltage-stablizer TLV70430 through voltage-stabiliser tube D5 in Figure 11, the voltage greater than 3V that electronic cigarette battery exports to be adjusted, and the vdd voltage for exporting stable 3V gives microprocessor (i.e. No. 1 pin vdd terminal of single-chip microcontroller STM32F030K6 shown in Fig. 9), to provide the operating voltage that it can be made to work normally for microprocessor.
[0074] in the specific implementation process, referring still to Fig. 8 B, the electronic cigarette further include: the reset circuit 5 being connect with the microprocessor 10, for detecting the internal operating voltages of the microprocessor 10, and it is lower than the first predeterminated voltage inch, 10 output reset signal of Xiang Suoshu microprocessor in the internal operating voltages.Specifically, it is reset circuit schematic diagram employed in a kind of electronic cigarette internal circuit, in conjunction with Fig. 9 and Figure 12 as shown in Figure 12, No. 1 pin vdd terminal of the input terminal Vin and single-chip microcontroller STM32F030K6 of the reset circuit are connect, output end vo utIt is connect with No. 4 ends pin NRST of single-chip microcontroller STM32F030K6, reset circuit detection obtains single-chip microcontroller S The vdd voltage of TM32F030K6, and it is lower than 2.2V inch in vdd voltage, reset signal (such as low level signal) is issued to No. 4 ends pin NRST of single-chip microcontroller STM32F030K6, makes microprocessor reset, it is out of control to avoid microprocessor.
[0075] in the specific implementation process, referring still to Fig. 8 B, the electronic cigarette further include: the warning circuit 6 being connect with the microprocessor 10;The microprocessor 10 is used for the tobacco tar in determining the electronic cigarette and exhausts inch, and Xiang Suoshu warning circuit 6 exports alert data；The warning circuit 6 is used to be based on the alert data, warning message is exported, to remind user that tobacco tar exhausts；Wherein, the warning message includes text information, voice messaging, vibration information and light information at least one.It is corresponding, display module for showing text information, audio-frequency module, the vibration module for issuing vibration information or the LED light for issuing light information for broadcast voice information can be set in electronic cigarette, wherein, the light information etc. that light information can be different for brightness different light information or color.
[0076] in a specific embodiment, the warning circuit 6 is to export warning message for showing, the warning circuit 6 includes: the display screen connecting with the microprocessor 10, the wake-up sub-circuit connecting with the microprocessor 10 and the display screen；The microprocessor 10 is used for the tobacco tar in determining the electronic cigarette and exhausts inch, exports wake up trigger signal to the wake-up sub-circuit, with inch to display screen output for showing the alert data of output；The wake-up sub-circuit is used for after receiving the wake up trigger signal, wakes up the display screen；The display screen shows the text information exported to remind user's tobacco tar to exhaust based on the alert data upon awakening.Specifically, as shown in figure 13, for Display and Alarm Circuit schematic diagram employed in a kind of electronic cigarette internal circuit, in conjunction with Fig. 9 and Figure 13, the warning circuit includes the Organic Electricity laser display screen OLED and wake-up sub-circuit connected to it of 96x16 dot matrix, the wake-up sub-circuit includes PNP type triode Q3, NPN type triode Q4 and P-channel field-effect transistor (PEFT) pipe Q5, the base stage of triode Q3 is connect with No. 21 ends pin PA11 of single-chip microcontroller STM32F030K6, emitter and input vdd voltage, the connection of No. 8 pins of collector and display screen, the base stage of triode Q4 is connect with the collector of triode Q3, emitter ground connection, collector and battery positive electricity Pressure side B+ connection, the grid of field-effect tube Q5 is by the way that resistance R51 is connect with battery positive voltage end B+, source electrode is directly connect with battery positive voltage end B+, draining connect with No. 5 pin VBAT (operating voltage input terminal) of display screen.
[0077] working principle of this Display and Alarm Circuit are as follows: in the case where electronic cigarette tobacco tar abundance, single-chip microcontroller STM32F0 30K6 exports high level signal to the base stage of triode Q3 by No. 21 ends pin PA11, so that triode Q3, Q4 and field-effect tube Q5 are off state, display screen power-off；When microprocessor determines that electronic cigarette tobacco tar will Exhaust inch, wake up trigger signal (such as low level signal) is exported to the base stage of triode Q3 by No. 21 ends pin PA11, this inch triode Q3 conducting, so that triode Q4, field-effect tube Q5 are sequentially turned on, and be powered on for display screen.It is powered in inch in need to display screen, powers off display screen woth no need to inch, to realize the effect of power saving.In addition, referring still to Fig. 9 and Figure 13, No. 10 ends pin SCL of display screen and No. 11 ends pin SDA are connect with No. 19 ends pin PA9 of single-chip microcontroller STM32F030K6 and No. 20 ends pin PA10 respectively, that is, single-chip microcontroller STM32F030K6 passes through No. 19 ends pin PA9 and No. 20 ends pin PA10 to display screen write-in for showing the alert data of output, so that display screen shows the text information exported to remind user's tobacco tar to exhaust based on the alert data upon awakening.
[0078] in the specific implementation process, referring still to Fig. 8 B, the power supply circuit 3 has the functional module to external equipment charge, the electronic cigarette further includes that the Jian connecting with the microprocessor 10 closes trigger circuit 7, it include: that the first triggering Jian closes 71, for receiving trigger action inch, it indicates to detect the first trigger signal that smoking acts to the microprocessor 10 output, so that the microprocessor 10 is based on first trigger signal control power supply circuit 3 and powers to the heating wire 2；Second triggering Jian closes 72, for receiving trigger action inch, the second trigger signal for indicating to increase smoking power is exported to the microprocessor 10, so that the microprocessor 10, which controls the power supply circuit 3 based on second trigger signal, increases output power to the heating wire 2；Third triggers Jian and closes 73, for receiving trigger action inch, the third trigger signal for indicating to reduce smoking power is exported to the microprocessor 10, so that the microprocessor 10, which controls the power supply circuit 3 based on the third trigger signal, reduces output power to the heating wire 2；4th triggering Jian closes 74, for receiving trigger action inch, the 4th trigger signal to external equipment charge is indicated to the microprocessor 10 output, so that the microprocessor 10 is based on the 4th trigger signal and controls the power supply circuit 3 to external equipment charge
[0079] specific, please refer to Figure 14, trigger circuit schematic diagram is closed for Jian employed in a kind of electronic cigarette internal circuit, the first triggering Jian in Fig. 8 B closes 71, second triggering Jian closes 72, the pass 73 third triggering Jian and the 4th triggering Jian close the Jian that 74 respectively correspond in Figure 14 and close (S1-S4), it is parallel with one another to close (S1-S4) by Jian in Figure 14, and respectively with No. 30 ends pin PB7 of single-chip microcontroller STM32F030K6, No. 27 ends pin PB4, No. 28 ends pin PB5 are connected with No. 26 ends pin PB3, and Jian OFF signal KEY is transmitted to single-chip microcontroller STM32F030K6 respectively, KE Y+, KEY- And KEY_0.Wherein, trigger action inch is received when Jian closes SI, indicates to detect the level signal (such as high level signal) that smoking acts to single-chip microcontroller STM32F030 K6 output, so that the microprocessor The current supply circuit that conducting heating wire L is controlled based on the high level signal does not receive trigger action inch when Jian closes S1, and high level signal is not detected in No. 30 ends pin PB7 of microprocessor, and controls the current supply circuit of disconnected Jian heating wire L；Trigger action inch is received when Jian closes S2, the level signal (such as high level signal) for indicating to increase smoking power is exported to single-chip microcontroller STM32F030K6, so that single-chip microcontroller STM32F030K6 adjusts the duty ratio of the PWM wave for controlling field-effect tube Q1 conducting based on the high level signal, to increase the output power to heating wire L, trigger action inch is not received when Jian closes S2, high level signal is not detected in No. 27 ends pin PB4 of microprocessor, and keeps the duty ratio for controlling the PWM wave that field-effect tube Q1 is connected constant；Trigger action inch is received when Jian closes S3, the level signal (such as low level signal) for indicating to reduce smoking power is exported to single-chip microcontroller STM32F030K6, so that single-chip microcontroller STM32F030K6 adjusts the duty ratio of the PWM wave for controlling field-effect tube Q1 conducting based on the low level signal, to reduce the output power to heating wire L, trigger action inch is not received when Jian closes S3, low level signal is not detected in No. 28 ends pin PB5 of single-chip microcontroller STM32F030K6, and keep the duty ratio for controlling the PWM wave that field-effect tube Q1 is connected constant；Trigger action inch is received when Jian closes S4, the level signal (such as high level signal) to external equipment charge is indicated to single-chip microcontroller STM32F030K6 output, so that power supply circuit of the single-chip microcontroller STM32F030K6 based on high level signal control electronic cigarette is to external equipment charge, trigger action inch is not received when Jian closes S4, high level signal is not detected in No. 26 ends pin PB3 of single-chip microcontroller STM32F030K6, and the power supply circuit for controlling electronic cigarette stops to external equipment charge in the specific implementation process, referring still to Fig. 8 B, the power supply circuit 3 includes: sequentially connected internal charging interface 31, Charge Management sub-circuit 32, battery 33 and externally charging Circuit 34;The internal charging interface 31 obtains electric energy for connecting with external power supply；The Charge Management sub-circuit 32 is also connect with the microprocessor 10, for the battery charging management signal based on the microprocessor 10, carries out Charge Management to the battery 33；The external charging sub-circuit 34 is also connect with the microprocessor 10, for the external charging control signal based on the microprocessor 10, is charged to external equipment.Further, the external charging sub-circuit 34 includes: that the 3rd Jian connecting with the microprocessor 10 closes part, the 4th Jian that part and the battery 33 are connect, which is closed, with the 3rd Jian closes part, the boost module that part is connect with the battery 33, and the external charging interface for connecting and being used to connect with external devices with the boost module 343 are closed by the 4th Jian；3rd Jian closes part and is used to obtain the external charging control signal inch conducting, so that the 4th Jian closes part conducting, and then makes the boost module and the cell communication；The boost module rises cell voltage Pressure, and the voltage after boosting is conveyed to external equipment by the external charging interface.
It [0081] is power supply circuit schematic diagram employed in a kind of electronic cigarette internal circuit specifically, please referring to Figure 15 A and Figure 15 B, the circuit in Figure 15 A is connected with the circuit in Figure 15 B by terminals Um.P1 interface (the internal charging interface 31 in corresponding diagram 8B) is the USB interface that outer bound pair electronic cigarette charges in Figure 15 A, No. 1 pin of P1 is connect with battery charging management chip AP5056,6, No. 7 pins of AP5056 are connect with No. 3 ends pin PF1 of single-chip microcontroller in Fig. 9 and No. 2 ends pin PF0 respectively, for receiving the battery charging management signal of single-chip microcontroller transmission, management is charged the battery.Specifically, when need to battery charge inch, single-chip microcontroller exports low level signal to No. 7 pins of AP5056 by No. 2 ends pin PF0 and exports high level signal to No. 6 pins of AP 5056 by No. 3 ends pin PF1, so that electronic cigarette battery is in the state in charging；Opposite, when battery charging complete inch, single-chip microcontroller exports high level signal to No. 7 pins of AP5056 by No. 2 ends pin PF0 and exports low level signal to No. 6 pins of AP5056 by No. 3 ends pin PF1, so that electronic cigarette battery is in the state of charging complete.Figure 15 B shows a kind of schematic diagram of the external charging sub-circuit of electronic cigarette, the voltage signal of battery positive voltage output end B+ output, after capacitor C19 and C20 are filtered, it is input in the boost module based on current mode boost converter MT3608 and carries out boosting processing, by the cell voltage (such as 4V) of electronic cigarette boost to electronic equipment (such as mobile phone) charging needed for 5V voltage, and by P2 interface (concretely USB interface) export.Further, in order to realize the management to the external charge function of electronic cigarette, as shown in fig. 15b, externally charging sub-circuit includes: the field-effect tube Q6 being series in the current supply circuit of booster converter MT3608, base stage and single-chip microcontroller STM32F030K6 connection and the triode Q7 that the grid of collector and Q6 connect.In conjunction with Fig. 9, Figure 14 and Figure 15 B, trigger signal inch is received when Jian closes S4, single-chip microcontroller exports high level signal to the base stage of triode Q7 by No. 13 ends pin PA7, so that triode Q7 and field-effect tube Q6 are both turned on, and then it is powered on boost module, and power by P2 interface to the external world.Accordingly, in order to realize during charging to electronic cigarette battery, electronic cigarette battery is forbidden to power to external equipment, charging the battery inch, single-chip microcontroller STM32F030K6 exports low level signal to the base stage of triode Q7 by No. 13 ends pin PA7, so that triode Q7 and field-effect tube Q6 are in off state, so that MT3608 can not work.
[0082] another sunset is foretold, referring still to Fig. 9 and Figure 15 A, No. 4 of the 2-4 pin of PI interface and single-chip microcontroller STM32F030K6, No. 24, No. 23 pins connect, can be used for single-chip microcontroller STM32F030K6 programming program.
[0083] in the specific implementation process, referring still to Fig. 8 B, the electronic cigarette further include: connect with the power supply circuit 3 The battery voltage detection circuit 8 connect is lower than the second predeterminated voltage inch for detecting the voltage of battery in the power supply circuit 3, and in cell voltage, controls the power supply circuit 3 and stop powering to the heating wire 2.Specifically, please referring to Figure 16, the battery voltage detection circuit being made of resistance R44, R45 and capacitor C25, when the voltage of battery is less than 3.3V inch, control battery cannot power to heating wire.
[0084] in the specific implementation process, referring still to Fig. 8 B, the electronic cigarette further include: with the battery protecting circuit 9 that battery both ends are connect in the power supply circuit 3, be used to carry out overcharge, overdischarge or short-circuit protection to the battery.Specifically; please refer to Figure 17; battery protecting circuit includes battery protection integrated chip MM3280 and field-effect tube Q8; No. 5 pin vdd terminals of MM3280 are connect with battery positive voltage output end B+, No. 6 ends pin VSS are connect with Negative battery voltage output end B-, whether are abnormal (such as overcharge, overdischarge or short circuit) for detecting battery；No. 1 end pin DO of MM3280 is connect with the grid of field-effect tube Q8, for being abnormal inch control field-effect tube Q8 conducting in detection battery, to protect to battery.
[0085] in conclusion the electronic cigarette in application scheme is smoked in user, and tobacco tar will exhaust inch, can and inch control electronic cigarette stop working, occur to avoid cotton phenomenon is burnt, user's tobacco tar can also be reminded to exhaust with inch, to improve the user experience.In addition, the electronic cigarette is also equipped with to external electronic device the functions such as charge, be managed and protect to battery, functional diversities and performance stabilization, there is good practicability.
[0086] as described above, above-mentioned electronic cigarette is for implementing the method that whether tobacco tar exhausts in above-mentioned detection electronic cigarette, so one or more embodiments of the electronic cigarette are identical as one or more embodiments of the above method, just no longer repeat one by one herein.
[0087] it should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program product.Therefore, the form of complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the present invention.Moreover, it wherein includes computer-usable storage medium (the including but not limited to magnetic disk storage, CD-R 0 of computer usable program code that the present invention, which can be used in one or more,M, optical memory etc.) on the form of computer program product implemented.
[0088] these computer program instructions also can be loaded onto a computer or other programmable data processing device, so that series of operation steps are executed on a computer or other programmable device to generate computer implemented processing, thus the step of instruction executed on a computer or other programmable device is provided for realizing the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.
[0089] although preferred embodiments of the present invention have been described, once a person skilled in the art knows basic wounds The property made concept, then additional changes and modifications can be made to these embodiments.So it includes preferred embodiment and all change and modification for falling into the scope of the invention that the following claims are intended to be interpreted as.
Obviously, those skilled in the art various changes and modifications can be made to the invention without departing from the spirit and scope of the present invention.If then the present invention is also intended to include these modifications and variations in this way, these modifications and changes of the present invention is within the scope of the claims of the present invention and its equivalent technology.

Claims (1)

  1. Claims
    The method that whether tobacco tar exhausts in a kind of [claim 1] detection electronic cigarette, which is characterized in that include the following steps
    51, it is detecting smoking signal inch, is powering into electronic cigarette for the heating wire of atomization smoke oil, so that the heating wire works；
    52, the temperature changing speed of the heating wire is obtained, and is greater than preset value inch in the pace of change, determines that tobacco tar exhausts in the electronic cigarette, and stops being that the heating wire is powered.
    [claim 2] detects the method that whether tobacco tar exhausts in electronic cigarette as described in claim 1, it is characterised in that
    , the electronic cigarette is provided with the Oil Guide component for contacting and be the heating wire fuel feeding with the heating wire, and the heating wire is atomized the tobacco tar on the Oil Guide component to form smog, and the step S2 specifically includes sub-step:
    521, the first temperature value of the acquisition heating wire is carved in the first inch；
    522, preset second temperature value inch is risen in the heating wire temperature, obtain the heating wire temperature from first temperature value rise to the second temperature value needed between inch, wherein, the second temperature value is less than or equal to the temperature value of Oil Guide component cracking inch；
    523, based between first temperature value, the second temperature value and the inch, calculate the temperature changing speed of the heating wire, and it is greater than the preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, is that the heating wire is powered to stop.
    [claim 3] detects the method that whether tobacco tar exhausts in electronic cigarette as described in claim 1, it is characterised in that
    The step S2 specifically: detect the temperature of the heating wire by temperature sensor, to obtain the temperature changing speed of the heating wire, and be greater than preset value inch when the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, and stops being that the heating wire is powered.
    [claim 4] detects the method that whether tobacco tar exhausts in electronic cigarette as claimed in claim 3, it is characterised in that
    , the temperature sensor is thermocouple temperature sensor, and the thermocouple temperature sensor is connected with the end of the heating wire.
    [claim 5] detects the method that whether tobacco tar exhausts in electronic cigarette as described in claim 1, it is characterised in that
    , upon step s 2, the method also includes steps:
    53, warning message is exported, to remind user that tobacco tar exhausts；Wherein, the warning message includes Text information, voice messaging, vibration information and light information at least one.
    The method that whether tobacco tar exhausts in detection electronic cigarette as described in claim 1, it is characterised in that
    , the step S2 specifically:
    Obtain the voltage value of voltage detecting point in the circuit loop where the heating wire, resistance variations amplitude of the heating wire in default inch is calculated based on the voltage value, and the temperature changing speed of the heating wire is obtained based on the amplitude of variation, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, and stops being that the heating wire is powered；Wherein, the resistance variation with temperature of the heating wire and change.
    The method that whether tobacco tar exhausts in detection electronic cigarette as claimed in claim 6, which is characterized in that the voltage detecting point is heating wire end.
    The method that whether tobacco tar exhausts in detection electronic cigarette as claimed in claim 7, which is characterized in that it is in series with divider resistance in the current supply circuit of the heating wire, the voltage value of the heating wire end is obtained in the step S2, specifically:
    The partial pressure value at the divider resistance both ends is obtained, and the supply voltage based on the current supply circuit and the partial pressure value obtain the voltage value of the heating wire end.
    The method that whether tobacco tar exhausts in detection electronic cigarette as claimed in claim 8, which is characterized in that be provided with microprocessor in the electronic cigarette and the first Jian being electrically connected with the microprocessor and the heating wire closes part and the 2nd Jian closes part；Wherein, the microprocessor, the first Jian close part and the heating wire is connected to electronic cigarette battery both ends and forms the first circuit, and the microprocessor, the 2nd Jian close part, the divider resistance and the heating wire and be connected to electronic cigarette battery both ends formation second servo loop；
    Inch is opened when the microprocessor controls the pass the first Jian part Jian, it then controls the 2nd Jian and closes part closing, so that the heating wire work, inch is opened when the microprocessor controls the pass the 2nd Jian part Jian, it then controls the first Jian and closes part closing, the method that whether tobacco tar exhausts in electronic cigarette is detected as claimed in claim 7 to obtain the voltage value of the heating wire end, which is characterized in that the step S2 specifically includes sub-step:
    S24, the first voltage value for obtaining the heating wire end is carved in the first inch, obtain at the second inch quarter Take the second voltage value of the heating wire end, wherein the second inch quarter is differed with first inch quarter between the default inch；
    S25, resistance variations amplitude of the resistance of the heating wire in the default inch is calculated based on the first voltage value and the second voltage value, and the temperature changing speed of the heating wire is obtained based on the amplitude of variation, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, is that the heating wire is powered to stop.
    [claim 11] a kind of electronic cigarette characterized by comprising detection control circuit for the heating wire of atomization smoke oil, and is the power supply circuit of the detection control circuit and heating wire power supply；The detection control circuit is used to detect smoking signal inch, the power supply circuit is controlled to power to the heating wire, so that the heating wire work, and obtain the temperature changing speed of the heating wire, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, and stops being that the heating wire is powered.
    [claim 12] electronic cigarette as claimed in claim 11, which is characterized in that the detection control circuit includes: microprocessor and the temperature detection sub-circuit connecting with the microprocessor；
    The microprocessor is used to detect smoking signal inch, controls the power supply circuit and power to the heating wire, so that the heating wire works；
    The temperature detection sub-circuit, which is used to obtain microprocessor described in the temperature of the heating wire in heating wire work inch, is also used to the temperature changing speed based on heating wire described in the temperature computation, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, and controls the power supply circuit and stop being that the heating wire is powered.
    [claim 13] electronic cigarette as claimed in claim 11, which is characterized in that the detection control circuit includes: microprocessor and the voltage detecting sub-circuit connecting with the microprocessor；
    The microprocessor is used to detect smoking signal inch, controls the power supply circuit and power to the heating wire, so that the heating wire works；
    Voltage value of the voltage detecting sub-circuit for voltage detecting point in the circuit loop where obtaining the heating wire in heating wire work inch；
    The microprocessor is also used to be calculated the heating wire based on the voltage value and preset in inch Resistance variations amplitude, and the temperature changing speed of the heating wire is obtained based on the amplitude of variation, and be greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, is that the heating wire is powered to stop；Wherein, the resistance variation with temperature of the heating wire and change.
    [claim 14] electronic cigarette as claimed in claim 13, which is characterized in that the voltage detecting point is heating wire end, and the voltage detecting sub-circuit includes:
    The division module being connect with the microprocessor and the heating wire end, it can read voltage for being converted to the voltage value, so that the microprocessor calculates resistance variations amplitude of the heating wire in default inch based on the readable voltage, and the temperature changing speed of the heating wire is obtained based on the amplitude of variation, and it is greater than preset value inch in the pace of change, it determines that tobacco tar exhausts in the electronic cigarette, is that the heating wire is powered to stop；Wherein, it is described can read voltage be the voltage that can identify of the microprocessor.
    [claim 15] electronic cigarette as claimed in claim 14, which is characterized in that the detection control circuit further include: the first Jian connecting with the microprocessor closes part；The microprocessor, which closes part for controlling the first Jian, leads on-off Jian, power with to control the power supply circuit to the heating wire or stops powering；
    The voltage detecting sub-circuit further include: the 2nd Jian connecting with the microprocessor closes part；The microprocessor leads on-off Jian for controlling the pass the 2nd Jian part, and to control, the voltage detecting sub-circuit detection obtains the voltage value or stopping detects the voltage value.
    [claim 16] electronic cigarette as claimed in claim 15, which is characterized in that it is field-effect tube that the first Jian, which closes part and the pass the 2nd Jian part,；
    The drain electrode that first Jian closes part is connect with the heating wire, first Jian closes the source electrode ground connection of part, the microprocessor is connect with the first Jian grid for closing part, part is closed for controlling the first Jian and leads on-off Jian, power with to control the power supply circuit to the heating wire or stops powering；
    The division module includes first resistor, second resistance and first capacitor, one end of the first resistor is connect with the heating wire, the other end of the first resistor is connect with the second resistance, the first capacitor and the microprocessor, the second resistance and the first capacitor The other end is connected and is grounded；
    The drain electrode that 2nd Jian closes part is connect with the heating wire and the first resistor, 2nd Jian closes the source electrode ground connection of part, the microprocessor is connect with the 2nd Jian grid for closing part, part is closed for controlling the 2nd Jian and leads on-off Jian, obtains to control the division module and the voltage value is converted to and read voltage or can stop obtaining the voltage value.
    [claim 17] electronic cigarette as described in claim 12 or 13, which is characterized in that the electronic cigarette further include: the warning circuit being connect with the microprocessor；
    The microprocessor is used for the tobacco tar in determining the electronic cigarette and exhausts inch, and Xiang Suoshu warning circuit exports alert data；
    The warning circuit is used to be based on the alert data, warning message is exported, to remind user that tobacco tar exhausts；Wherein, the warning message includes text information, voice messaging, vibration information and light information at least one.
    [claim 18] electronic cigarette as claimed in claim 17, it is characterized in that, the warning circuit is specifically used for display output warning message, the warning circuit includes: the display screen connecting with the microprocessor, the wake-up sub-circuit connecting with the microprocessor and the display screen；
    The microprocessor is used for the tobacco tar in determining the electronic cigarette and exhausts inch, exports wake up trigger signal to the wake-up sub-circuit, with inch to display screen output for showing the alert data of output；
    The wake-up sub-circuit is used for after receiving the wake up trigger signal, wakes up the display screen；The display screen shows the text information exported to remind user's tobacco tar to exhaust based on the alert data upon awakening.
    [claim 19] electronic cigarette as described in claim 12 or 13, it is characterized in that, the power supply circuit has the functional module to external equipment charge, and the electronic cigarette further includes that the Jian connecting with the microprocessor closes trigger circuit, comprising:
    First triggering Jian is closed, for receiving trigger action inch, it indicates to detect the first trigger signal that smoking acts to microprocessor output, so that the microprocessor is based on first trigger signal control power supply circuit and powers to the heating wire；
    Second triggering Jian is closed, and for receiving trigger action inch, the output of Xiang Suoshu microprocessor is indicated Increase the second trigger signal of smoking power, so that the microprocessor, which controls the power supply circuit based on second trigger signal, increases output power to the heating wire；
    Third triggers Jian and closes, for receiving trigger action inch, the third trigger signal for indicating to reduce smoking power is exported to the microprocessor, so that the microprocessor, which controls the power supply circuit based on the third trigger signal, reduces output power to the heating wire；
    4th triggering Jian is closed, and for receiving trigger action inch, the output of Xiang Suoshu microprocessor indicates the 4th trigger signal to external equipment charge, so that the microprocessor is based on the 4th trigger signal and controls the power supply circuit to external equipment charge.
    [claim 20] electronic cigarette as described in claim 12 or 13, it is characterized in that, the power supply circuit includes: sequentially connected internal charging interface, Charge Management sub-circuit, battery and externally internal charging interface described in charging sub-circuit is used to connect with external power supply, and obtains electric energy；
    The Charge Management sub-circuit is also connect with the microprocessor, for the battery charging management signal based on the microprocessor, carries out Charge Management to the battery；The external charging sub-circuit is also connect with the microprocessor, for the external charging control signal based on the microprocessor, is charged to external equipment.
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