CN108201174A

CN108201174A - A kind of design method of electronic cigarette, control method and electronic cigarette

Info

Publication number: CN108201174A
Application number: CN201611169914.6A
Authority: CN
Inventors: 刘秋明; 向智勇; 牛建华; 韦志林
Original assignee: Kimree Technology Co Ltd
Current assignee: Kimree Technology Co Ltd
Priority date: 2016-12-16
Filing date: 2016-12-16
Publication date: 2018-06-26

Abstract

The invention discloses a kind of design methods of electronic cigarette, the electronic cigarette includes heating wire, the first sample resistance and control chip, the heating wire forms smog for atomization smoke oil, for controlling the electric current of the heating wire according to the resistance value of first sample resistance when electronic cigarette is started to work, the design method includes the control chip：S11, the resistance value for determining the heating wire；S12, the resistance value according to the heating wire determine the resistance value of first sample resistance；S13, the determining heating wire and first sample resistance with the control chip are electrically connected respectively, design the electronic cigarette.Correspondingly, the invention also discloses the control methods and electronic cigarette of a kind of electronic cigarette.The present invention expands the use scope of control chip, and greatly simplify the design cycle of electronic cigarette, convenient for manufacture, production efficiency is high and production cost is low by the way that the main circuit of electronic cigarette is integrated on a control chip.

Description

A kind of design method of electronic cigarette, control method and electronic cigarette

Technical field

The present invention relates to a kind of electronic cigarette technical field more particularly to design method of electronic cigarette, control method and electronics Cigarette.

Background technology

Electronic cigarette is a kind of relatively conventional simulation cigarette electronic product, is mainly used for smoking cessation and cigarette substitute；Electronic cigarette Structure mainly include battery component and atomizing component.The atomizing component includes atomization set, the tobacco tar being set in atomization set Adsorption piece and heating wire, the heating wire are fitted with tobacco tar adsorption piece with the tobacco tar for being atomized the tobacco tar adsorption piece absorption, when When detecting the smoking action of smoker, battery component is powered for atomizing component, and atomizing component is made to be in opening；Work as atomization After component is opened, electrothermal wire heating, tobacco tar, which is heated, evaporates atomization, forms the aerosol of simulated flue gas, so as to allow user when inhaling There is a kind of feeling of similar smoking.

Battery, microprocessor, charging management chip, battery protection core are usually provided in the battery component of existing electronic cigarette Piece and transistor switch etc. in R＆D process, select/design first different chips according to the heating wire of unlike material, will Said chip and component are welded on one by one on the circuit board of the good circuit of cloth, then again by burning program to the microprocessor, Described program is finally debugged again, battery component is made to export suitable power, so that atomizing component is atomized out required temperature.Therefore, Number of chips in existing electronic cigarette is more, and when design needs to carry out cumbersome connection, test and adjustment, and design cycle is complicated, Production efficiency is low, and of high cost.In addition, existing electronic cigarette control method makes product yield low, homogeneity of product is poor, user Experience Degree is poor.

Invention content

For the present invention in the prior art, the number of chips in electronic cigarette is more, and design cycle is complicated, production effect The technical issues of rate is low, and of high cost provides a kind of design method of electronic cigarette, control method and electronic cigarette, can will be electric The main circuit of sub- cigarette is integrated on a control chip, expands the use scope of control chip, and greatly simplify electronic cigarette Design cycle, convenient for manufacture, production efficiency is high and production cost is low.

On the one hand, the present invention provides a kind of design method of electronic cigarette, the electronic cigarette includes heating wire, the first sampling Resistance and control chip, the heating wire form smog for atomization smoke oil, and the control chip is used to start work in electronic cigarette The electric current of the heating wire is controlled when making according to the resistance value of first sample resistance, the design method includes following step Suddenly：

S11, the resistance value for determining the heating wire；

S12, the resistance value according to the heating wire determine the resistance value of first sample resistance；

S13, the determining heating wire and first sample resistance with the control chip are electrically connected respectively, designed Go out the electronic cigarette.

On the other hand, the present invention provides a kind of control method of electronic cigarette, the electronic cigarette takes including heating wire, first Sample resistance and control chip, the heating wire for atomization smoke oil formed smog, the resistance value of the heating wire vary with temperature and Variation, first sample resistance are electrically connected with the control chip；

The control method includes：

S21, the resistance value for controlling chip according to first sample resistance, when controlling the electronic cigarette start-up operation The electric current of the heating wire；

S22, the control chip detect actual resistance of the heating wire in real work, and according to the reality Resistance value controls the electric current for flowing through the heating wire, so that the operating temperature control of the heating wire is within a preset range.

On the other hand, the present invention provides a kind of electronic cigarette, including heating wire, the first sample resistance and control chip；

The heating wire forms smog for atomization smoke oil, and first sample resistance is electrically connected with the control chip, The heating wire when control chip is used to control electronic cigarette start-up operation according to the resistance value of first sample resistance Electric current.

One or more technical solution provided by the invention, has at least the following technical effects or advantages：

Since the main circuit of electronic cigarette of the present invention is integrated on a control chip, chip design engineer is in design institute When stating control chip, without considering the material of heating wire, thus compared with the prior art, the use of the control chip can be expanded Range；In addition, Application Engineer is in the design for completing whole branch electronic cigarette circuit, it is only necessary to according to different materials and different mesh Temperature is marked, the heating wire and the first sample resistance of different resistance values is chosen, just completes different design requirements, it is cumbersome without carrying out Connection, test and adjustment, thus the design of electronic cigarette circuit is greatly simplified, convenient for manufacture, production efficiency is high and is produced into This is low；In addition, electronic cigarette control method of the present invention improves the yield of product, good product consistency improves user experience.

Description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.

Fig. 1 is a kind of flow chart of the design method of electronic cigarette provided in an embodiment of the present invention；

Fig. 2 is the electrical block diagram of the first electronic cigarette provided in an embodiment of the present invention；

Fig. 3 is the electrical block diagram of second of electronic cigarette provided in an embodiment of the present invention；

Fig. 4 is the electrical block diagram of the third electronic cigarette provided in an embodiment of the present invention；

Fig. 5 is a kind of flow chart of the control method of electronic cigarette provided in an embodiment of the present invention；

Fig. 6 is the first electronic cigarette internal circuit schematic diagram provided in an embodiment of the present invention；

Fig. 7 is second of electronic cigarette internal circuit schematic diagram provided in an embodiment of the present invention；

Fig. 8 A are that first part's circuit of control chip in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention is former Reason figure；

Fig. 8 B are that the second part circuit of control chip in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention is former Reason figure；

Fig. 9 is the circuit diagram of key-press module in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention；

Figure 10 is the circuit diagram of display module in a kind of electronic cigarette internal circuit provided in an embodiment of the present invention；

Figure 11 is the third electronic cigarette internal circuit schematic diagram provided in an embodiment of the present invention；

Figure 12 is the 4th kind of electronic cigarette internal circuit schematic diagram provided in an embodiment of the present invention.

Specific embodiment

The embodiment of the present invention is by providing a kind of design method of electronic cigarette, for solving electronic cigarette chip in the prior art The technical issues of quantity is more, and design cycle is complicated, and production efficiency is low, and of high cost, can be by the main circuit of electronic cigarette It is integrated on a control chip, the use scope of control chip is expanded, and greatly simplify the design cycle of electronic cigarette, convenient for system It makes, production efficiency is high and production cost is low.

The technical solution of the embodiment of the present invention is in order to solve the above technical problems, general thought is as follows：

An embodiment of the present invention provides a kind of design method of electronic cigarette, the electronic cigarette includes heating wire, the first sampling Resistance and control chip, the heating wire form smog for atomization smoke oil, and the control chip is used to start work in electronic cigarette The electric current of the heating wire is controlled when making according to the resistance value of first sample resistance, the design method includes following step Suddenly：S11, the resistance value for determining the heating wire；S12, the resistance value according to the heating wire determine first sample resistance Resistance value；S13, the determining heating wire and first sample resistance are electrically connected respectively with the control chip, if Count out the electronic cigarette.

As it can be seen that in embodiments of the present invention, by the main circuit of electronic cigarette, such as charge management circuit, regulator circuit, Wei Chu Reason device, battery protecting circuit etc. are integrated on a control chip, and chip design engineer is when designing the control chip, nothing It need to consider the material of heating wire, thus compared with the prior art, the use scope of the control chip can be expanded；In addition, using Engineer is in the design for completing whole branch electronic cigarette circuit, it is only necessary to according to different materials and different target temperatures, choose not It is connected on the control chip with the heating wire of resistance value and the first sample resistance, just designs the electricity for meeting different designs demand Sub- cigarette without each circuit to be carried out to cumbersome connection, test and adjustment, thus greatly simplifies setting for electronic cigarette circuit Meter, convenient for manufacture, production efficiency is high and production cost is low.

In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper It states technical solution to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the application The detailed description of technical solution rather than the restriction to technical scheme, in the absence of conflict, the present invention are implemented Technical characteristic in example and embodiment can be combined with each other.

Embodiment one

It please refers to Fig.1, an embodiment of the present invention provides a kind of design method of electronic cigarette, the electronic cigarette includes electric heating Silk, the first sample resistance and control chip, the heating wire form smog for atomization smoke oil, and the control chip is used in electricity The electric current of the heating wire, the design method packet are controlled when sub- cigarette is started to work according to the resistance value of first sample resistance Include following steps：

S11, the resistance value for determining the heating wire；

It should be noted that the main circuit of electronic cigarette, as charge management circuit, regulator circuit, microprocessor, battery are protected Protection circuit etc. is integrated on the control chip, based on the integrated control chip, is chosen required heating wire and first and is taken Sample resistance is attached, you can required electronic cigarette is provided.When choosing heating wire, electronic cigarette institute is chosen according to design requirement The resistance value of heating wire is needed, to choose corresponding heating wire according to the resistance value.After the resistance value of heating wire is determined, according to electricity The resistance value of heated filament can calculate the resistance value of the first sample resistance, and then choose corresponding first sampling electricity according to the resistance value Resistance.The heating wire of selection and the first sample resistance are connected respectively on integrated control chip, you can design meet demand Electronic cigarette.Using integrated control chip can extend control chip use scope, and choose different resistance values heating wire and First sample resistance is designed, and can greatly simplify the circuit design of electronic cigarette, and convenient for manufacture, production efficiency is high and is produced into This is low.

Further, in specific implementation process, the resistance value of the heating wire is target resistance values, wherein, the mesh Mark resistance value is resistance value of the heating wire in operating target temperature.It is understood that the resistance value of the heating wire can be with Resistance value during for inoperative target temperature, is not specifically limited herein.

It should be noted that the resistance value variation with temperature of heating wire and change, i.e. the resistance value of heating wire and its work Make temperature with one-to-one relationship.When choosing heating wire, pass through the heating wire electricity corresponding in operating target temperature Resistance value determines its target resistance values, and then the resistance value of corresponding first sample resistance is determined according to the target resistance values； Therefore, when electronic cigarette is started to work, the control chip can be controlled according to the resistance value of first sample resistance to be flowed through The electric current of the heating wire flowed through when reaching operating target temperature with the heating wire heating wire electric current it is equal or slightly The electric current of the heating wire is flowed through when reaching operating target temperature more than the heating wire, thus, can not only electronic cigarette be avoided to open Smog temperature overheating during beginning work, and can simplify control chip design.It is understood that it starts to work in electronic cigarette When, the size of the current of electric heating wire is not specifically limited herein.

Further, in specific implementation process, the step S12 is specially：

It according to the resistance value of the heating wire, is calculated using linear function y=kx+b, determines the first sampling electricity The resistance value of resistance, wherein, k and b are constant, and x is the resistance value of heating wire, and y is the resistance value of first sample resistance.

It should be noted that the resistance value of the resistance value of heating wire and the first sample resistance is there are certain functional relation, The functional relation includes but not limited to above-mentioned function y=kx+b, for example, it is also possible to exponential function y=a^x, power function y=x^ A or logarithmic function y=log_aX etc. is calculated, wherein, a is constant, and the value of described a, k and b can be set as needed It is fixed.After the resistance value of heating wire is determined, the resistance value of the first sample resistance can be calculated by certain functional relation, And then corresponding first sample resistance is chosen according to the resistance value.In circuitry processes are designed, according to the different work of electronic cigarette Temperature chooses the heating wire and the first sample resistance of different resistance values, you can the quick circuit for designing electronic cigarette.In a kind of implementation In mode, the step S12 is specially：According to the resistance value of the heating wire, calculated using discrete function y=f (x), Determine the resistance value of first sample resistance, wherein, x is the resistance value of heating wire, and y is the resistance of first sample resistance Value.Wherein, the discrete function y=f (x) can be set as needed, such as can be：Y=x* (multiplying) 10⁴, x values are 0.2nd, 0.25,0.3,0.35 etc., then this is not specifically limited.

Further, the step S12 is specially：According to the resistance value of the heating wire, using lookup table mode, institute is determined The resistance value of the first sample resistance is stated, wherein, the resistance value of the heating wire in table is for discrete type numerical value and with described the The resistance value of one sample resistance corresponds.

Further, in specific implementation process, as shown in Fig. 2, one end of the heating wire 21 and the control chip 22 electrical connections, the other end of the heating wire 21 are electrically connected to positive pole B+.One end ground connection of the first sample resistance R0, The other end of the first sample resistance R0 is only electrically connected with the control chip 22, i.e., is electrically connected with the control chip 22 One end of first sample resistance R0 is only used for providing signal for the control chip 22, preferably avoids in the prior art, leads to When crossing a many devices and being attached, the problems such as numerous and diverse calculating, design and test need to be carried out.

It should be noted that when producing the control chip, then control program is written in the control chip, often The resistance value of the first sample resistance of unit corresponds to the PWM wave that control chip generates certain default duty ratio so that the first sampling The resistance value of resistance is directly proportional to PWM wave or inverse ratio.After the resistance value for determining the first sample resistance, work can be started in electronic cigarette When making, by the resistance value of the first sample resistance, control flows through the electric current of heating wire, and then realizes the work temperature of control heating wire Degree.It is understood that the first sample resistance R0 can be set as to pull-up resistor, one end electricity of the first sample resistance R0 The other end of the positive pole B+, the first sample resistance R0 of the electronic cigarette is connected to only to be electrically connected with the control chip 22 It connects.Therefore, the first sample resistance R0 is set as pull-up resistor or pull down resistor can be set as needed, This is not especially limited.

Further, in specific implementation process, the step S11 is specially：

The material that selection resistance value is varied with temperature and changed is as heating wire, according to the temperature and resistance of the heating wire The supply voltage of the incidence relation of value, the operating target temperature of the heating wire and the electronic cigarette, determines the heating wire Resistance value.

It should be noted that the material that the material of heating wire can choose resistance value variation with temperature and change, makes electric heating The resistance value of silk has corresponding associate feature with operating temperature.In the resistance value for choosing heating wire, according to design requirement, i.e., It is chosen according to the supply voltage of the operating target temperature of heating wire, the material of heating wire and electronic cigarette.For example, required design Electronic cigarette heating wire steady operation when atomization temperature, i.e., the operating target temperature of heating wire be 280 DEG C, the material of heating wire Matter is titanium, and the supply voltage of electronic cigarette is 4.2V, then can according to needed for these design requirements calculate electronic cigarette heating wire Resistance value.It is understood that the temperature of the heating wire can be in some preset range during the heating wire steady operation Interior, i.e., described operating target temperature can be a preset range value；Correspondingly, the heating wire 21 resistance value selection with this The corresponding resistance value of preset range value of operating target temperature.

Further, in specific implementation process, the step S12 is further included：

Determine the resistance value of the second sample resistance, and by one end of determining second sample resistance only and the control Chip is electrically connected, the other end ground connection of second sample resistance, so that the control chip is according to second sample resistance Resistance value control the heating wire from beginning to warm up the duration needed for operating target temperature.

It should be noted that the design of the second sample resistance can be also added in electronic cigarette, as shown in figure 3, the second sampling electricity The one end for hindering R01 is electrically connected with control chip 22, the other end ground connection of the second sample resistance R01.Pass through setting the second sampling electricity R01 is hindered, control chip 22 is according to the resistance value of the second sample resistance R01, and control heating wire reaches pre- when electronic cigarette is started to work If the size of current or voltage before temperature, time length during electronic cigarette being controlled to work from room temperature to preset temperature, wherein, in advance If temperature is the operating target temperature of heating wire.For example, the operating target temperature of heating wire is 280 DEG C, taken no second In the existing electronic cigarette circuit of sample resistance, heating wire can be quickly from being quickly heated to 280 DEG C from room temperature, and the present invention passes through setting Second sample resistance, controllable heating wire are heated to 280 DEG C of duration from room temperature, such as make the existing electronic cigarette of heating time length ratio slightly late 2 seconds.By the control to heating duration, heating wire temperature change can be made to be unlikely to too fast, mouthfeel when user uses is more preferable, carries High user experience.

Further, in specific implementation process, as shown in figure 3, the step S12 is further included：

Determine the resistance value of third sample resistance R02, and by one end of the determining third sample resistance R02 only and institute It states control chip 22 to be electrically connected, the other end ground connection of the third sample resistance R02, so as to electronic cigarette charging when institute State the size that control chip 22 controls charging current according to the resistance value of the third sample resistance R02.Therefore, in design process In, different third sample resistance R02 is selected according to the demand setting to charging current.For example, it is desired to select 1A Charging current or 2A charging current when, select the third sample resistance R02 of different resistance values, thus design efficiency Height, speed are fast and at low cost.It is understood that can also the third sample resistance R02 be arranged to pull-up resistor, i.e. institute The one end for stating third sample resistance R02 is electrically connected with the control chip 22, and the other end of the third sample resistance R02 is electrically connected It is connected to the positive pole B+ of electronic cigarette.

It determines correcting circuit 23, and the determining correcting circuit 23 is electrically connected with the control chip 22, so that electric The correcting circuit 23 calculates controlled quentity controlled variable, institute according to the actual work temperature of heating wire with operating target temperature difference during sub- cigarette work State control chip 22 controls heating wire 21 to work according to the controlled quentity controlled variable, so that the temperature of heating wire 21 is more steadily in default In the range of.Thus, it is located at outside the control chip 22 by setting the correcting circuit 23, so as to design difference as needed Correcting circuit 23.

Further, in specific implementation process, as shown in figure 4, the control chip 22 includes control module 41, voltage stabilizing 42 and first divider resistance R04 of circuit module；

The first divider resistance R04 is connect with the first sample resistance R0, and the first divider resistance R04's deviates from One end of the first sample resistance R0 is connected with the output pin of the voltage stabilizing circuit module 42, the voltage stabilizing circuit module 42 Input pin is electrically connected with the positive pole B+ of the electronic cigarette, and the first sample resistance R0's deviates from first divider resistance One end ground connection of R04, the other end and the first divider resistance R04 and the control module 22 of the first sample resistance R0 Electrical connection.In addition, one end of the heating wire 21 and the control module 22 are electrically connected, the other end of the heating wire 21 and institute State positive pole B+ electrical connections.

It should be noted that it is integrated with control module, voltage stabilizing circuit module and the first divider resistance in control chip.Its In, control module controls the electric current for flowing through heating wire, and the first divider resistance divides the power supply of electronic cigarette, voltage stabilizing The power supply that circuit module will be greater than 3V is adjusted, and with the stable 3V voltages of output, module is powered in order to control.

To sum up, by implementing the application above-mentioned technical proposal, the main circuit of electronic cigarette can be integrated in one It controls on chip, expands the use scope of control chip, and greatly simplify the design cycle of electronic cigarette, convenient for manufacture, production effect Rate is high and production cost is low.

Embodiment two

It based on same inventive concept, please refers to Fig.2 and Fig. 5, the present invention also provides a kind of control method of electronic cigarette, institutes It states electronic cigarette and includes heating wire, the first sample resistance and control chip, the heating wire forms smog for atomization smoke oil, described The resistance value of heating wire is varied with temperature and is changed, and first sample resistance is electrically connected with control chip；

The control method includes：

S22, the control chip detect actual resistance of the heating wire in real work, and according to the reality Resistance value controls the electric current for flowing through the heating wire, so that the operating temperature control of the electronic cigarette is within a preset range.

It should be noted that using the control chip integrated in embodiment one, the heating wire and the first sample resistance chosen Electronic cigarette is designed, makes the main circuit of the control integrated chip electronic cigarette in the electronic cigarette, to expand being applicable in for control chip Range, heating wire and the first sample resistance choose different resistance values to meet different designs demand, so as to make the electronic cigarette designed The operating temperature of heating wire can be controlled.When electronic cigarette is started to work, according to the resistance value of the first sample resistance, control Chip controls flow through the electric current of heating wire.Since the resistance value of heating wire changes with the variation of operating temperature, in heating wire work After work, control chip obtains the actual work temperature of heating wire by detecting actual resistance of the heating wire in real work, And then the electric current of heating wire is flowed through by control, realize that by smog temperature, i.e. the operating temperature of heating wire is controlled in preset range It is interior.It is understood that actual resistance of the heating wire in real work can be by the heating wire both ends Potential difference size is characterized.

Further, in specific implementation process, the electronic cigarette further includes second be electrically connected with the control chip Sample resistance, the control method further include：

The control chip controls the heating wire from beginning to warm up work according to the resistance value of second sample resistance Make the duration needed for target temperature.

It should be noted that resistance value of the control chip according to the second sample resistance, by the way that heating wire is controlled to start to work When electric current, time length during electronic cigarette being controlled to work from room temperature to preset temperature, wherein, preset temperature is heating wire Operating target temperature.For example, the operating target temperature of heating wire is 280 DEG C, in existing electronic cigarette circuit, heating wire can be fast Speed from being quickly heated to 280 DEG C from room temperature, and the control chip in the present invention can be controlled by the second sample resistance heating wire from Room temperature is heated to 280 DEG C of duration, such as makes the existing electronic cigarette of heating time length ratio slightly 2 seconds evenings.It, can by the control to heating duration Heating wire temperature change is made to be unlikely to too fast, mouthfeel when user uses is more preferable, improves user experience.

Further, in specific implementation process, as shown in figure 4, the electronic cigarette further includes and the control chip 22 The third sample resistance R02 of electrical connection, the control method further include：

When charging to the electronic cigarette, the control chip 22 is controlled according to the resistance value of the third sample resistance R02 The size of charging current.Wherein, in the present embodiment, the resistance value of the third sample resistance R02 is sampled by the third Resistance R02 anode-cathode voltage sizes are characterized.During charging, the charging pins CHG of the control chip 22 is electrically connected with external power supply It connects, can charge to the power supply BAT of the electronic cigarette.

Further, in specific implementation process, as shown in figure 4, the electronic cigarette further includes and the control chip 22 The correcting circuit 23 of electrical connection, the control method further include：

The correcting circuit 23 is poor according to the actual work temperature and operating target temperature of heating wire 21 when electronic cigarette works Controlled quentity controlled variable is calculated, control chip controls heating wire 21 to work according to the controlled quentity controlled variable, so that the temperature of heating wire 21 is in default In the range of.By setting the correcting circuit 23, to increase the stability of electronic cigarette integrated circuit system.

In the present embodiment, the correcting circuit 23 includes the first capacitance C01, the second capacitance C02 and loop compensation resistance R03, the first capacitance C01 connect with the loop compensation resistance R03, and the first capacitance C01's mends away from the loop The one end for repaying resistance R03 is connected with the control chip 22, and the loop compensation resistance R03 is far from the first capacitance C01's One end is grounded；One end ground connection of the second capacitance C02, the other end of the second capacitance C02 and the first capacitance C01 are remote One end electrical connection from the loop compensation resistance R03.Wherein, control module 41, voltage stabilizing are provided in the control chip 22 Circuit module 42, detection circuit 43 and application condition circuit 44, the detection circuit 43 are used for 21 end of heating wire Voltage is detected, and testing result is exported to the application condition circuit 44；The application condition circuit 44 is used to examine The voltage Us and goal-selling voltage value U0 that slowdown monitoring circuit conveying comes is compared, actual work temperature and target is obtained Temperature difference；The controlled quentity controlled variable control heating wire 21 that the control module 41 is exported according to the correcting circuit 23 works.

Further, in specific implementation process, as shown in figure 4, the electronic cigarette further includes the equal and control chip 22 connected tobacco control switch K1, the first lbd display unit 24 and the second lbd display units 25, institute Control method is stated to further include：

Continuous trigger tobacco control switchs K15 times in 3 seconds, and first lbd display unit 24 shows electronics Cigarette battery allowance, second lbd display unit 25 dodge 3 times, then lock machine；

Under lock machine pattern, continuous trigger tobacco control switchs K15 times in 3 seconds, second diode displaying Unit 25 dodges 5 times, into standby mode.

In stand-by mode, when electronic cigarette supply voltage is less than the first preset value, the tobacco control switch K1 is by tactile During hair, the control chip 22 controls second lbd display unit 25 to dodge 10 times and controls at the heating wire 21 In off working state.In the present embodiment, first preset value is 3.47V, first lbd display unit 24 Including LED1 to LED4, second lbd display unit 25 includes LED5.It is understood that the number of the LED Amount is set as needed, is not specifically limited herein.

To sum up, by implementing the application above-mentioned technical proposal, the electronic cigarette designed can be used to realize to electric heating The control of silk operating temperature, improves the yield of product, and good product consistency improves user experience.

Embodiment three

It based on same inventive concept, please refers to Fig.2, the present invention also provides a kind of electronic cigarette, including heating wire 21, first Sample resistance R0 and control chip 22；

The heating wire 21, which is electrically connected with the control chip and is used for atomization smoke oil, forms smog, the control chip 22 The electric current of the heating wire 21 during for controlling electronic cigarette start-up operation according to the resistance value of the first sample resistance R0.Specifically Ground, in the present embodiment, one end ground connection of the first sample resistance R0, the other end and the institute of the first sample resistance R0 State the input pin electrical connection of control chip 22.It is understood that the first sample resistance R0 may be arranged as pull-up electricity Resistance, i.e., one end of described first sample resistance R0 are electrically connected to the other end of positive pole B+, the first sample resistance R0 only It is electrically connected with the input pin of the control chip 22.

It should be noted that the electronic cigarette in the embodiment of the present invention is designed by the design method of above-described embodiment one Out.Wherein, control integrated chip has the main circuit in existing electronic cigarette, can expand the use scope of control chip, Heating wire and the first sample resistance are by the design requirement of choosing different resistance values to meet different, so as to make the electricity designed Heated filament is convenient for manufacture, and production efficiency is high, and production cost is low.Moreover, the heating wire in the present embodiment can be to the work of heating wire Temperature is controlled.When electronic cigarette is started to work, according to the resistance value of the first sample resistance, control chip controls flow through heating wire Electric current.Since the resistance value of heating wire changes with the variation of operating temperature, after heating wire work, control chip passes through inspection Actual resistance of the heating wire in real work is surveyed, obtains the actual work temperature of heating wire, and then electricity is flowed through by control The electric current of heated filament is realized the operating temperature control of heating wire within a preset range.Therefore, using the electronic cigarette of the present embodiment into Row control improves the yield of product, and good product consistency improves user experience.

The first divider resistance R04 is connect with the first sample resistance R0, and the first divider resistance R04's deviates from One end of the first sample resistance R0 is connected with the output pin of the voltage stabilizing circuit module 42, the input of the regulator circuit 42 Foot is electrically connected with the power supply B+ of the electronic cigarette, the first sample resistance R0 away from the one of the first divider resistance R04 End ground connection, the other end of the first sample resistance R0 are electrically connected with the first divider resistance R04 and the control module 41. In addition, one end of the heating wire 21 and the control module 41 are electrically connected, the other end and the power supply of the heating wire 21 Anode B+ is electrically connected.

Further, in specific implementation process, as shown in fig. 6, the control module 41 includes control unit 61, first Resistance R43, second resistance R41,3rd resistor R42, the 4th resistance R38, the 5th resistance R39, capacitance C22, the first field-effect tube Q8 and the second field-effect tube Q9；

The first field-effect tube Q8 drain electrode respectively with one end of the heating wire 21, the 4th resistance R38 one End electrical connection, the other end and described control unit 61 of the 4th resistance R38 are electrically connected, one end of the capacitance C22 and institute It states control unit 61 to be electrically connected, the other end ground connection of the capacitance C22, the 5th resistance R39 is in parallel with the capacitance C22； The source electrode ground connection of the first field-effect tube Q8, the grid of the first field-effect tube Q8 respectively with described control unit 61, institute State one end electrical connection of 3rd resistor R42, the other end ground connection of the 3rd resistor R42；

The drain electrode of the second field-effect tube Q9 is electrically connected with one end of the second resistance R41, the second resistance R41 The other end and the heating wire 21 one end electrical connection, the second field-effect tube Q9 source electrode ground connection, it is described second effect Should one end respectively with described control unit 61, the first resistor R43 of grid of pipe Q9 be electrically connected, the first resistor R43 The other end ground connection.

In addition, one end of the first sample resistance R0 and control unit 61 are electrically connected, the first sample resistance R0's is another End ground connection；One end of first divider resistance R04 and the first sample resistance R0 series connection, the first divider resistance R04's is another The voltage stabilizing circuit module 42 of one end and electronic cigarette is electrically connected.

Wherein, the 4th resistance R38, the 5th resistance R39, capacitance C22 form bleeder circuit unit 62 in control module 41. When the voltage that the bleeder circuit unit 62 is mainly used at the o- of connecting pin is more than 3V, control unit 61 can also read the electricity at this Pressure value.

It should be noted that after heating wire work, according to the resistance value of the first sample resistance R0, control unit 61 exports Standard duty ratio is connected the first field-effect tube Q8, is heated heating wire 21；In the real work for detecting the heating wire 21 During temperature, the first field-effect tube Q8 is turned off, the second field-effect tube Q9 is connected, to detect the real work of the heating wire 21 Voltage and real work electric current.Wherein, the real work voltage of heating wire is by detecting the voltage value of 21 one end of heating wire, and base It is calculated in the voltage of the positive pole B+ of electronic cigarette, the real work electric current of heating wire is by detecting second resistance R41 mono- The voltage value at end, and the resistance value based on second resistance R41 is calculated.In the real work voltage and reality for obtaining heating wire 21 After the operating current of border, resistance value of the heating wire 21 in real work is calculated, and according to the heating wire temperature pre-established Degree and the mapping table of resistance value, obtain the actual work temperature of the heating wire 21, and then by the actual work temperature It is compared with preset targeted operating temperature, by adjusting the duty ratio of output to the heating wire 21, makes the heating wire 21 actual work temperature control is within a preset range.It is understood that in the present embodiment, the first sample resistance R0 Resistance value size characterized by the voltage swing of the first sample resistance R0 ends, described control unit 61 to first sample The voltage of resistance R0 ends carries out analog-to-digital conversion to obtain the voltage value of the first sample resistance R0 ends.

Further, in specific implementation process, as shown in fig. 7, the electronic cigarette further includes the second sample resistance R01, One end ground connection of the second sample resistance R01, the other end of the second sample resistance R01 and the input of control unit 61 Foot is electrically connected, and described control unit 61 controls the heating wire 21 from the beginning of according to the resistance value of the second sample resistance R01 It is heated to the duration needed for operating target temperature.In the present embodiment, the resistance value size of the second sample resistance R01 passes through The voltage swing of second sample resistance R01 ends is characterized, and described control unit 61 is to the electricity of the second sample resistance R01 ends Pressure carries out analog-to-digital conversion to obtain the voltage value of the second sample resistance R01 ends.

It should be noted that by setting the second sample resistance R01, control unit 61 is according to the second sample resistance R01's Resistance value, time length when control electronic cigarette works from room temperature to preset temperature, wherein, preset temperature is the work of heating wire Make target temperature.For example, the operating target temperature of heating wire is 280 DEG C, in the existing electronic cigarette electricity of no second sample resistance Lu Zhong, heating wire can be quickly from being quickly heated to 280 DEG C from room temperature, and the present invention can control by setting the second sample resistance Heating wire is heated to 280 DEG C of duration from room temperature, such as makes the existing electronic cigarette of heating time length ratio slightly 2 seconds evenings.By to heating duration Control, heating wire temperature change can be made to be unlikely to too fast, mouthfeel when user uses is more preferable, improves user experience.

Further, in specific implementation process, as shown in figure 4, the electronic cigarette further includes and the control chip 22 Connected third sample resistance R02, when charging to the electronic cigarette, the control chip 22 is according to the third sample resistance The size of the resistance value control charging current of R02.Wherein, in the present embodiment, the resistance value of the third sample resistance R02 is led to The third sample resistance R02 anode-cathode voltage sizes are crossed to be characterized.Wherein, it is provided with charging module in the control chip 22 40 and control module 41, the charging module 40 be electrically connected with the control module 41 and charging pins CHG.It is described during charging The charging pins CHG of control chip is electrically connected with external power supply, can be charged to the electronic cigarette power supply BAT.

Further, in specific implementation process, continue as shown in figure 4, the electronic cigarette further includes and the control core The connected correcting circuit 23 of piece 22, the correcting circuit 23 is according to the actual work temperature and work of heating wire 21 when electronic cigarette works Make target temperature difference and calculate controlled quentity controlled variable, the control chip 22 controls heating wire 21 to work according to the controlled quentity controlled variable.Pass through setting The correcting circuit 23, to increase the stability and reliability of electronic cigarette integrated circuit system.

In the present embodiment, the correcting circuit 23 includes the first capacitance C01, the second capacitance C02 and loop compensation resistance R03, the first capacitance C01 are connected in series with the loop compensation resistance R03, and the first capacitance C01's deviates from the ring One end of road compensation resistance R03 is connected with the control chip 22, and the loop compensation resistance R03 is far from first capacitance One end ground connection of C01；One end ground connection of the second capacitance C02, the other end and first capacitance of the second capacitance C02 One end electrical connections of the C01 far from the loop compensation resistance R03.Wherein, it is described control chip 22 in be provided with control module 41, Voltage stabilizing circuit module 42, detection circuit 43 and application condition circuit 44, the detection circuit 43 are used for 21 end of heating wire The voltage in portion is detected, and testing result is exported to the application condition circuit 44；The application condition circuit 44 is used for The voltage Us and goal-selling voltage value U0 that detection circuit conveying comes is compared, actual work temperature and work is obtained Target temperature is poor；The controlled quentity controlled variable control heating wire 21 that the control module 41 is exported according to the correcting circuit 23 works.

Further, in one preferred embodiment, as shown in figs. 8 a and 8b, control chip 22 further includes charging valve Manage circuit module 81, booster circuit module 82, voltage stabilizing circuit module 83, reset circuit module 84, battery voltage detection circuit mould Block 85 and battery protecting circuit module 86.Wherein, the model that control unit U10 is produced with group of STMicw Electronics The circuit structure of the microprocessor of STM32F030K6 is identical, and therefore, details are not described herein for control unit U10 internal structures.Electronics Cigarette further includes charging USB interface P1, key-press module and display module.

Wherein, charging USB interface P1 charges for outer bound pair electronic cigarette, including five interfaces, interface 2, interface 3 It is used for interface 4 to electronic cigarette write-in program, interface 5 is grounded, and interface 1 passes through 81 electricity of resistance R27 and charge management circuit module Connection.Charge management circuit module 81 includes charge management circuit unit U7 and resistance R32, wherein, the charge management circuit The electricity of the charging management chip for the model AP5056 that the circuit of unit U7 is produced with Wuxi Chipown Microelectronics Co., Ltd. Line structure is identical, and therefore, details are not described herein for the internal structure of the charge management circuit unit U7.One end of resistance R32 and The PROG pins connection of charge management circuit unit U7, the other end ground connection of resistance R32, the BAT of charge management circuit unit U7 Pin connects the positive pole B+ of electronic cigarette.In electronic cigarette charging process, the CHGING pins of charge management circuit unit U7 For low level, DONE pins are high level；After electronic cigarette completes charging, the CHGING pins of charge management circuit unit U7 are High level, DONE pins are low level.

Booster circuit module 82 includes booster circuit unit U8, inductance L2, diode D4, resistance R28 and resistance R31.Its In, the boost chip of the model MT3608 of the circuit of booster circuit unit U8 and the production of Xi'an space flight Min Xin Science and Technology Ltd.s Circuit structure it is identical, therefore, details are not described herein for the circuit structure of booster circuit unit U8.Booster circuit module 82 passes through field Effect pipe Q6 connects the power supply B+ of electronic cigarette with triode Q7.The power supply B+ of the source electrode connection electronic cigarette of field-effect tube Q6, field effect Should the grid of pipe Q6 connected with the collector of triode Q7, the base stage of triode Q7 accesses power supply 5V_EN by resistance R33, three The emitter ground connection of pole pipe Q7, the VIN to drain respectively with one end of inductance L2, booster circuit unit U8 of field-effect tube Q6 draw Foot, the connection of EN pins；Anode of the other end of inductance L2 respectively with the SW pins of booster circuit unit U8, inductance D4 connects, electricity The cathode of sense D4 is connected with one end of resistance R28, the other end of resistance R28 FB pins, the electricity with booster circuit unit U8 respectively Hinder one end connection of R31, the other end ground connection of resistance R31.In addition, the output pin and USB interface of the booster circuit module 82 P2 connections, the booster circuit module 82 are used for the boost in voltage less than 5V to 5V.When charging the battery, triode The base stage of Q7 is low level signal, and field-effect tube Q6 and triode Q7 are closed, and when charging to the external world, the base stage of triode Q7 is High level signal, field-effect tube Q6 and triode Q7 conductings, charge to the external world by USB interface P2.

Voltage stabilizing circuit module 83 includes regulator circuit unit U9 and diode D5.The anode connection power supply B+ of diode D5, The Vin pins of the cathode connection regulator circuit unit U9 of diode D5, the Vout pins connection power supply of regulator circuit unit U9 VDD.The supply voltage that the voltage stabilizing circuit module 83 is used to will be greater than 3V is adjusted, with the vdd voltage of the stable 3V of output. Wherein, the voltage stabilizing chip circuit for the model TLV70430 that the circuit structure of regulator circuit unit U9 is produced with Texas Instruments Structure is identical.Therefore, details are not described herein for the circuit structure of regulator circuit unit U9.

Reset circuit module 84 includes reset circuit unit U11 and resistance R40.The vin pins point of reset circuit unit U11 Do not connected with one end of voltage VDD, resistance R40, the other end of resistance R40 respectively with the vout pins of reset circuit unit U11, The NRST pins connection of control unit U10, the vss pins ground connection of reset circuit unit U11.The reset circuit module 84 is used for When voltage at VDD is less than 2.2V, low level is exported, resets control unit U10, it is out of control to avoid control unit U10.Its In, the reset electricity for the model NC/BL8506-22 that the reset circuit unit U11 is produced with Shanghai Belling Co., Ltd. Road chip circuit structure is identical, and therefore, details are not described herein for internal circuit structure.

Battery voltage detection circuit module 85 includes resistance R44, resistance R45 and capacitance C25.One end connection of resistance R44 One end of the other end connection resistance R45 of positive pole B+, resistance R44, the other end ground connection of resistance R45, capacitance C25 and resistance R45 is in parallel.The battery voltage detection circuit module 85 is used for when supply voltage is less than 3.3V, and control power supply cannot be to electric heating Silk power supply.

Battery protecting circuit module 86 includes battery protecting circuit unit U12, resistance R52, resistance R53, capacitance C33 and field Effect pipe Q12.One end connection positive pole B+ of resistance R52, the other end of resistance R52 respectively with one end of capacitance C33, battery Protect the VDD pins connection of circuit unit U12, the other end connection power cathode B- of capacitance C33；One end connection of resistance R53 The VM pins of battery protecting circuit unit U12, the other end ground connection of resistance R53；The grounded drain of field-effect tube Q12, field-effect The DO pins of the grid connection chip U12 of source electrode connection the power cathode B-, field-effect tube Q12 of pipe Q12.The battery protection electricity Road module 86 is used to protect battery supply.Wherein, the circuit structure of battery protecting circuit unit U12 and U.S. upper U.S. (MITSUMI) circuit structure of the battery protection chip of the model MM3280 of company's production is identical, and therefore, circuit structure exists This is repeated no more.

As shown in figure 9, key-press module includes switch S1, switch S2, switch S3, switch S4, resistance R47, resistance R48, electricity Hinder R49 and resistance R50.Switch S1 one end connect respectively one end of resistance R47, control unit U10 KEY pins, resistance R47 The other end connection voltage VDD, switch S1 the other end ground connection；One end of switch S2 connects one end of resistance R48, control respectively The KEY+ pins of unit U10, the other end connection voltage VDD of resistance R48, the other end for switching S2 are grounded；Switch one end of S3 One end of resistance R49, the KEY- pins of control unit U10 are connected respectively, and the other end connection voltage VDD of resistance R48 switchs S3 The other end ground connection；Switch S4 one end connect respectively one end of resistance R50, control unit U10 KEY_0 pins, resistance R50 The other end connection voltage VDD, switch S4 the other end ground connection.Wherein, switch S1 is switched for tobacco control, and switch S2 is power Control switch is reduced, switch S3 increases control switch for power, and switch S4 is external charging control switch.

As shown in Figure 10, display module includes chip OLED1, triode Q13, field-effect tube Q10 and triode Q11. The VBAT pins of the source electrode connection chip OLED1 of drain electrode connection the power supply B+, field-effect tube Q10 of effect pipe Q10, chip OLED1 Grid pass through the collector of resistance R54 connecting triodes Q13, the emitter ground connection of triode Q13, the base stage of triode Q13 Pass through the VDD pins of resistance R57 connection chips OLED1；The base stage of triode Q11 passes through resistance R55 connection OLEDPW, triode The VDD pins of the collector connection chip OLED1 of emitter the connection VDD, triode Q11 of Q11.The SCL pins of chip OLED1 It is used to that data be written with SDA pins.The display module is when being waken up, the base stage input low level signal of triode Q11, and three Pole pipe Q13, field-effect tube Q10 and triode Q11 conductings, to realize power saving.Display module is used to show driving power and electric heating The actual temperature of silk.

In another embodiment, as shown in figure 11, control chip 22 includes charge management circuit unit U1, battery is protected Protection circuit unit U2, control unit U3, field-effect tube Q1 and field-effect tube Q2.Electronic cigarette further include USB interface P1, switch K1 and Battery capacity display module, the heating wire (not shown) of electronic cigarette are connected between connecting pin o+ and connecting pin o-.It is described Battery capacity display module include smoking lamp LED5, electricity display lamp LED1, electricity display lamp LED2, electricity display lamp LED3 and Electricity display lamp LED4.Wherein, the VCC of the VCC pin of charge management circuit unit U1 and CE pins respectively with USB interface P1 draws Foot connects, the BAT pins connection positive pole B+ of charge management circuit unit U1, the PROG pins of charge management circuit unit U1 It is electrically connected with third sample resistance R02, by setting third sample resistance R02 sizes, required charging current can be set；Battery The VM pins ground connection of circuit unit U2 is protected, VDD pins are born by resistance R2 connection positive pole B+, GND pin connection power supply Pole B-；The PB0/AN0 pins of control unit U3 pass through the drain electrode of resistance R6 connection field-effect tube Q1, the source electrode company of field-effect tube Q1 Power supply B+ is met, and passes through the grid of resistance R4 connection field-effect tube Q2, the OS of the grid connection control unit U3 of field-effect tube Q1 Pin；The drain electrode of source electrode connection the power supply B+, field-effect tube Q2 of field-effect tube Q2 pass through resistance R7 connection control units U3's PA5/AN4 pins.In addition, the PA2 pins of one end connection control unit U3 of switch K1, the other end for switching K1 are grounded.First One end ground connection of sample resistance R0, the other end of the first sample resistance R0 are connected with the PA6/AN5 pins of control unit U3. In the present embodiment, control unit U3 controls the opening and closing of field-effect tube Q1 by OS pins, so as to control heating wire Work, more specifically, in the present embodiment, when switch K1 is triggered, described control unit U3 controls the field-effect tube Q1 Keying, and the electric current of the heating wire is flowed through according to the control of the size of the first sample resistance R0 resistance values.In order to detect electricity Temperature when heated filament works, when the PB1/AN1 pins of control unit U3 export low level, field-effect tube Q2 is connected, at this time OS Pin exports high level, and field-effect tube Q1 is closed, and so as to detect the voltage at B+ and 0+, heating wire is calculated by the voltage of detection Resistance value at this moment, and then the operating temperature of heating wire is calculated, it is controlled so as to the temperature to heating wire.It is described Control chip is the unique chips of the electronic cigarette, i.e., described electronic cigarette only has a chips.Wherein, in the present embodiment In, the model of the circuit structure of the charge management circuit unit U1 and Wuxi Chipown Microelectronics Co., Ltd.'s production The circuit structure of the charging management chip of AP5056 is identical；The circuit structure of the battery protecting circuit unit U2 and the match micro- electricity of core The circuit structure of the battery protection chip of the model XB5353A of sub- Co., Ltd's production is identical；The electricity of described control unit U3 The circuit structure of the control chip of model HT66F004 of the line structure with closing safe semiconductor (China) Co., Ltd production is identical.

In another embodiment again, as shown in figure 12, the embodiment and the circuit structure of the electronic cigarette shown in Figure 11 It is similar, include control chip 22, the difference is that：The electronic cigarette of the present embodiment is further included (not to be shown with heating wire in figure Go out) with the transistor switch that is connected of control chip 22, it is described to control chip by controlling the break-make of the transistor switch To control the electric current of the heating wire, specifically, in the present embodiment, the transistor switch be field-effect tube Q1, the electricity Heated filament is connected between connecting pin o+ and connecting pin o-；And field-effect tube Q1 need not be set in the control chip of the present embodiment, i.e., Field-effect tube Q1 is placed in outside the control chip 22, is not integrated on a chips with control chip 22.It therefore, can be preferable The heat generated when the field-effect tube Q1 is worked distributes, and avoids temperature excessively high.

In conclusion since the main circuit of electronic cigarette of the present invention is integrated on a control chip, chip design engineering Teacher without considering the material of heating wire, thus compared with the prior art, can expand the control when designing the control chip The use scope of chip；In addition, Application Engineer is in the design for completing whole branch electronic cigarette circuit, it is only necessary to according to different materials With different target temperatures, the heating wire and the first sample resistance of different resistance values are chosen, just completes different design requirements, without Cumbersome connection, test and adjustment are carried out, thus greatly simplifies the design of electronic cigarette circuit, convenient for manufacture, production efficiency High and production cost is low；In addition, electronic cigarette control method of the present invention improves the yield of product, good product consistency improves User experience.

It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program Product.Therefore, the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware can be used in the present invention Apply the form of example.Moreover, the computer for wherein including computer usable program code in one or more can be used in the present invention The computer program production that usable storage medium is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) The form of product.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps are performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of design method of electronic cigarette, which is characterized in that the electronic cigarette includes heating wire, the first sample resistance and control Chip, the heating wire form smog for atomization smoke oil, and the control chip is used for when electronic cigarette is started to work according to institute The resistance value for stating the first sample resistance controls the electric current of the heating wire, and the design method includes the following steps：

S11, the resistance value for determining the heating wire；

S13, the determining heating wire and first sample resistance with the control chip are electrically connected respectively, design institute State electronic cigarette.

2. the design method of electronic cigarette as described in claim 1, which is characterized in that the resistance value of the heating wire is target electricity Resistance value, wherein, the target resistance values are resistance value of the heating wire in operating target temperature.

3. the design method of electronic cigarette as described in claim 1, which is characterized in that the step S12 is specially：

It according to the resistance value of the heating wire, is calculated using function y=f (x), determines the resistance of first sample resistance Value, wherein, x is the resistance value of heating wire, and y is the resistance value of first sample resistance.

4. the design method of electronic cigarette as claimed in claim 3, which is characterized in that the step S12 is more specifically：

According to the resistance value of the heating wire, using linear function y=kx+b, exponential function y=a^x, power function y=x^a or Person's logarithmic function y=log_aX is calculated, and determines the resistance value of first sample resistance, wherein, a, b and k are constant.

5. the design method of electronic cigarette as claimed in claim 3, which is characterized in that the step S12 is more specifically：

It according to the resistance value of the heating wire, is calculated using discrete function y=f (x), determines first sample resistance Resistance value.

6. the design method of electronic cigarette as described in claim 1, which is characterized in that the step S12 is specially：According to described The resistance value of heating wire using lookup table mode, determines the resistance value of first sample resistance, wherein, the electricity in table The resistance value of heated filament is corresponded for discrete type numerical value and with the resistance value of first sample resistance.

7. the design method of electronic cigarette as described in claim 1, which is characterized in that in the step S13, first sampling Resistance is pull-up resistor, and one end of first sample resistance is electrically connected to the positive pole of the electronic cigarette, and described first takes The other end of sample resistance is only electrically connected with the control chip.

8. the design method of electronic cigarette as described in claim 1, which is characterized in that in the step S13, first sampling One end ground connection of resistance, the other end of first sample resistance are only electrically connected with the control chip.

9. the design method of electronic cigarette as described in claim 1, which is characterized in that the step S11 is specially：

The resistance value material that varies with temperature and change is chosen as heating wire, according to the temperature of the heating wire and resistance value The supply voltage of incidence relation, the operating target temperature of the heating wire and the electronic cigarette determines the resistance of the heating wire Value.

10. the design method of electronic cigarette as described in claim 1, which is characterized in that the step S12 is further included：

Determine the resistance value of the second sample resistance, and by one end of determining second sample resistance only and the control chip Electrical connection, the other end ground connection of second sample resistance, so that electricity of the control chip according to second sample resistance Resistance value controls the heating wire from beginning to warm up the duration needed for operating target temperature.

11. the design method of electronic cigarette as described in claim 1, which is characterized in that the step S12 is further included：

Determine the resistance value of third sample resistance, and by one end of the determining third sample resistance only and the control chip Electrical connection, the third sample resistance the other end ground connection so that when charge to the electronic cigarette it is described control chip according to The size of the resistance value control charging current of the third sample resistance.

12. the design method of electronic cigarette as described in claim 1, which is characterized in that the step S12 is further included：

It determines correcting circuit, and the determining correcting circuit is electrically connected with the control chip, so that during electronic cigarette work The correcting circuit calculates controlled quentity controlled variable, the control chip root according to the actual work temperature of heating wire with operating target temperature difference According to controlled quentity controlled variable control heating wire work.

13. the design method of electronic cigarette as described in claim 1, which is characterized in that it is described control chip include control module, Voltage stabilizing circuit module and the first divider resistance；

First divider resistance is connect with first sample resistance, and first divider resistance is sampled away from described first One end of resistance is connected with the output pin of the voltage stabilizing circuit module, the electricity of the input pin of the regulator circuit and the electronic cigarette Source is electrically connected, and first sample resistance is grounded away from one end of first divider resistance, first sample resistance The other end is electrically connected with first divider resistance and the control module.

14. a kind of control method of electronic cigarette, which is characterized in that the electronic cigarette includes heating wire, the first sample resistance and control Coremaking piece, the heating wire form smog for atomization smoke oil, and the resistance value of the heating wire varies with temperature and change, and described the One sample resistance is electrically connected with the control chip；

The control method includes：

S21, the control chip are according to the resistance value of first sample resistance, described in when controlling the electronic cigarette to start to work The electric current of heating wire；

S22, the control chip detect actual resistance of the heating wire in real work, and according to the actual resistance Value controls the electric current for flowing through the heating wire, so that the operating temperature control of the heating wire is within a preset range.

15. the control method of electronic cigarette as claimed in claim 14, which is characterized in that the electronic cigarette further includes and the control Second sample resistance of coremaking piece electrical connection, the control method further include：

The control chip controls the heating wire from beginning to warm up to the mesh that works according to the resistance value of second sample resistance Mark the duration needed for temperature.

16. the control method of electronic cigarette as claimed in claim 14, which is characterized in that the electronic cigarette further includes and the control The third sample resistance of coremaking piece electrical connection, the control method further include：

When charging to the electronic cigarette, the control chip controls charging current according to the resistance value of the third sample resistance Size.

17. the control method of electronic cigarette as claimed in claim 14, which is characterized in that the electronic cigarette further includes and the control The correcting circuit of coremaking piece electrical connection, the control method further include：

The correcting circuit is calculated with operating target temperature difference according to the actual work temperature of heating wire and is controlled when electronic cigarette works Amount, control chip control heating wire work according to the controlled quentity controlled variable.

18. the control method of electronic cigarette as claimed in claim 14, which is characterized in that the electronic cigarette further include it is equal with it is described Tobacco control switch, the first lbd display unit and the second lbd display unit of chip electrical connection are controlled, The control method further includes：

Continuous trigger tobacco control switchs 5 times in 3 seconds, and first lbd display unit is shown more than electronic cigarette battery Amount, second lbd display unit dodge 3 times, then lock machine；

Under lock machine pattern, continuous trigger tobacco control switchs 5 times in 3 seconds, and second lbd display unit dodges 5 It is secondary, into standby mode.

19. the control method of electronic cigarette as claimed in claim 18, which is characterized in that in stand-by mode, when electronic cigarette electricity Source voltage is less than the first preset value, and when the tobacco control switchs toggled, second shines described in the control chip controls Diode display unit dodges 10 times and the heating wire is controlled to be in off working state.

20. a kind of electronic cigarette, which is characterized in that including heating wire, the first sample resistance and control chip；

The heating wire forms smog for atomization smoke oil, and first sample resistance is electrically connected with the control chip, described Chip is controlled to be used for the electric current according to the heating wire during control electronic cigarette start-up operation of the resistance value of first sample resistance.

21. electronic cigarette as claimed in claim 20, which is characterized in that one end ground connection of first sample resistance, described the Input pin of the other end of one sample resistance only with the control chip is electrically connected.

22. electronic cigarette as claimed in claim 20, which is characterized in that one end of first sample resistance is electrically connected to electronics The positive pole of cigarette, the other end of first sample resistance are only electrically connected with the input pin for controlling chip.

23. electronic cigarette as claimed in claim 20, which is characterized in that the control chip includes control module, regulator circuit Module and the first divider resistance；

First divider resistance is connect with first sample resistance, and first divider resistance is sampled away from described first One end of resistance is connected with the output pin of the voltage stabilizing circuit module, the electricity of the input pin of the regulator circuit and the electronic cigarette Source be electrically connected, first sample resistance away from one end of first divider resistance ground connection, the control module with it is described Heating wire is connected.

24. electronic cigarette as claimed in claim 20, which is characterized in that the electronic cigarette further includes the second sample resistance, described One end ground connection of second sample resistance, the other end of second sample resistance are only electrically connected with the input pin for controlling chip It connects, the control chip is additionally operable to control the heating wire from beginning to warm up work according to the resistance value of second sample resistance Make the duration needed for target temperature.

25. electronic cigarette as claimed in claim 23, which is characterized in that the control module include control unit, first resistor, Second resistance, 3rd resistor, the 4th resistance, the 5th resistance, capacitance, the first field-effect tube and the second field-effect tube；

The one end of the drain electrode of first field-effect tube respectively with one end of the heating wire, the 4th resistance is electrically connected, institute State the other end of the 4th resistance and described control unit electrical connection, one end of the capacitance and described control unit electrical connection, institute The other end ground connection of capacitance is stated, the 5th resistance is in parallel with the capacitance；The source electrode ground connection of first field-effect tube is described The one end of the grid of first field-effect tube respectively with described control unit, the 3rd resistor is electrically connected, the 3rd resistor The other end is grounded；

The drain electrode of second field-effect tube is electrically connected with one end of the second resistance, the other end of the second resistance and institute State one end electrical connection of heating wire, the source electrode ground connection of second field-effect tube, the grid of second field-effect tube respectively with One end electrical connection of described control unit, the first resistor, the other end ground connection of the first resistor.

26. electronic cigarette as claimed in claim 20, which is characterized in that the control chip is unique one of the electronic cigarette Chip.

27. electronic cigarette as claimed in claim 20, which is characterized in that shown electronic cigarette further includes and the heating wire and described The transistor switch of chip electrical connection is controlled, the control chip is described to control by controlling the break-make of the transistor switch The electric current of heating wire.

28. electronic cigarette as claimed in claim 20, which is characterized in that the electronic cigarette further includes third sample resistance, described One end ground connection of third sample resistance, the other end of the third sample resistance are only electrically connected with the control chip, the control Coremaking piece is additionally operable to when external charger charges to the electronic cigarette, is filled according to the control of the resistance value of the third sample resistance The size of electric current.

29. electronic cigarette as claimed in claim 20, which is characterized in that the electronic cigarette is further included to be electrically connected with the control chip The correcting circuit connect, the correcting circuit are used for when electronic cigarette works according to the actual work temperature and target of heating wire Temperature difference calculates controlled quentity controlled variable, and control chip controls heating wire work according to the controlled quentity controlled variable.

30. electronic cigarette as claimed in claim 29, which is characterized in that the correcting circuit includes the first capacitance, the second capacitance And loop compensation resistance, first capacitance are connected in series with the loop compensation resistance, deviating from for first capacitance is described One end of loop compensation resistance is connected with the control chip, a termination of the loop compensation resistance far from first capacitance Ground；One end ground connection of second capacitance, the other end of second capacitance is with first capacitance far from the loop compensation One end electrical connection of resistance.