CN110200326B - Electronic cigarette power incremental control method and system - Google Patents
Electronic cigarette power incremental control method and system Download PDFInfo
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- CN110200326B CN110200326B CN201910558462.8A CN201910558462A CN110200326B CN 110200326 B CN110200326 B CN 110200326B CN 201910558462 A CN201910558462 A CN 201910558462A CN 110200326 B CN110200326 B CN 110200326B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
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Abstract
A power increment control method of an electronic cigarette is applied to a control system which is connected with an atomizing core on the electronic cigarette, and comprises the following steps: after the atomization core is switched on to work, detecting and acquiring the resistance value of the atomization core; matching the initial corresponding output voltage to the atomizing core according to the resistance value of the atomizing core; counting the continuous accumulated working time of the atomizing core; and controlling and regulating the output voltage to the atomizing core according to the accumulated working time, wherein the output voltage is positively correlated with the accumulated working time. According to the technical scheme, the output voltage of the atomizing core is adjusted, the working power of the atomizing core is correspondingly adjusted, the smoking smoke quantity can be increased in the same smoking time, the electronic cigarette automatically matches the initial power value according to the resistance value of the atomizing core, and the power value can change constantly in the working process, so that the same smoking time is reached, and the smoking smoke quantity is increased.
Description
Technical Field
The invention belongs to the technical field of electronic cigarettes, and relates to an electronic cigarette power incremental control method and a control system for realizing the control method.
Background
The electronic cigarette is also called a virtual cigarette and an electronic atomizer, is mainly used for quitting smoking and replacing cigarettes, has the same appearance as the cigarettes, has the taste similar to the cigarettes, even has much more taste than the common cigarettes, and can also smoke like the cigarettes and have the taste similar to the cigarettes.
The tobacco tar used by the electronic cigarette is produced by taking plant extract, water and edible spice as main raw materials and is generally stored in a tobacco tar bottle. Electronic cigarette generally has cartridge and tobacco rod two parts, the cartridge is also called the atomizer, the atomizer includes the atomizing core, wherein the tobacco cartridge part can save the tobacco tar, and can be through the atomizing core of atomizer with the tobacco tar atomizing, the cartridge is split type design with the tobacco rod generally, the consumer can be according to liking the different cartridge of selection, and in the different cartridge, the resistance of atomizing core is distinguished, current electronic cigarette, the heating power of atomizing core generally all is single, user experience is relatively poor, if atomizing core heating power can not change, be difficult to adapt to different user demands.
The most atomizing core during operation heating power of electron cigarette in the prior art is unchangeable, no matter user's suction size or length of time of breathing in, all is invariable heating power and produces the atomizing, still can inject because of leading oil many times, the user is longer at a smoking time, can the less condition of smog on the contrary, can not simulate when smoking tobacco cigarette, and the suction is big or breathe in for a long time, and the phenomenon that smog volume is big makes user's use experience feel not enough.
Disclosure of Invention
The invention aims to provide a power increasing control method of an electronic cigarette, which solves the technical problems in the prior art and achieves the effect that the longer the inspiration time of a user is, the more smoke is generated by increasing the heating power.
In order to achieve the above object, the present invention is achieved by the following means.
The technical scheme of the invention is an electronic cigarette power incremental control method, which is applied to a control system connected with an atomizing core on an electronic cigarette and comprises the following steps:
after the atomization core is switched on to work, detecting and acquiring the resistance value of the atomization core;
matching the initial corresponding output voltage to the atomizing core according to the resistance value of the atomizing core;
counting the continuous accumulated working time of the atomizing core;
and controlling and regulating the output voltage to the atomizing core according to the accumulated working time, wherein the output voltage is positively correlated with the accumulated working time.
According to the technical scheme, the output voltage of the atomizing core is adjusted, the working power of the atomizing core is correspondingly adjusted, the smoking smoke quantity can be increased in the same smoking time, the electronic cigarette automatically matches the initial power value according to the resistance value of the atomizing core, and the power value can change constantly in the working process, so that the same smoking time is reached, and the smoking smoke quantity is increased.
In an embodiment of the present invention, the positively correlating the operating time and the output voltage includes:
the output voltage is in direct proportion to the accumulated working time;
and after the accumulated working time reaches a preset time value, controlling the output voltage to keep unchanged.
In an embodiment of the present invention, each time the accumulated operating time increases by an interval time value, the output voltage is controlled to increase by a fixed ratio of the output voltage corresponding to the initial operating time, and when the accumulated operating time reaches the preset time value, the output voltage is controlled to be unchanged.
In an embodiment of the technical solution, the method further includes:
and after the atomization core stops working, clearing the accumulated working time.
Another technical solution of the present invention is an electronic cigarette power incremental control system, connected to an atomizing core, including:
the impedance detection circuit is used for detecting the resistance value of the atomization core after the atomization core is switched on to work;
the control circuit is used for acquiring the resistance value of the atomization core, matching the initial output voltage according to the resistance value, sending a control signal to the voltage regulation circuit, and counting the accumulated working time of the atomization core;
the voltage regulating circuit is used for regulating and outputting voltage to the atomizing core after receiving the control signal of the control circuit;
wherein the output voltage is positively correlated with the accumulated operating time.
In one embodiment of the technical solution, the control circuit is respectively connected with the impedance detection circuit and the voltage regulation circuit; the impedance detection circuit is respectively connected with the atomizing cores; the voltage regulating circuit is also connected with a power supply;
the voltage regulating circuit comprises an MOS tube voltage regulating circuit and an MOS tube driving circuit, the MOS tube voltage regulating circuit is connected with the power supply, the power supply is regulated to generate output voltage for the atomizing core, and the MOS tube driving circuit is connected with the control circuit, receives the control signal of the control circuit and drives the MOS tube voltage regulating circuit to regulate the output voltage.
IN an embodiment of the technical scheme, the MOS tube driving circuit comprises an MOS tube driving chip U11, the MOS tube voltage regulating circuit comprises three MOS tubes Q4, Q5 and Q6, an input end IN of the MOS tube driving chip U11 receives a PWM1H signal of a control circuit, a control output pin HG1 of the MOS tube driving chip is connected with grids of the MOS tubes Q4 and Q5 at the same time, the MOS tubes Q4 and Q5 are connected IN parallel, a drain electrode of the MOS tube driving chip is connected with a power supply at the same time, a source electrode of the MOS tube driving chip is connected with an output end VOUT serving as output voltage and connected with an atomizing core, a control output pin L G1 of the MOS tube driving chip is connected with a grid electrode of the MOS tube Q6, a drain electrode of the MOS tube Q6 is connected.
In an embodiment of the technical solution, the sources of the MOS transistors Q4 and Q5 pass through the inductor L2 and then serve as the output terminal VOUT for outputting voltage, and the output terminal VOUT also passes through four capacitors C29, C30, C31, and C39 connected in parallel and then is grounded.
IN an embodiment of the technical solution, the impedance detection circuit includes an impedance measurement chip U13, a signal input pin IN + of the impedance measurement chip U13 is connected to an output voltage of the voltage regulation circuit, the signal input pin IN-is connected to the output voltage of the voltage regulation circuit through a current limiting resistor R42 and a current limiting resistor R43 which are connected IN parallel, and an output terminal OUT of the signal input pin IN-is connected to the control circuit through a resistor R47.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and the drawings in the following description are only directed to some embodiments, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a step diagram showing a power increment control method according to embodiment 1 of the present application.
Fig. 2 shows a processing flow chart of a power increment control method according to embodiment 1 of the present application.
Fig. 3 shows a schematic block diagram of the structure of an electronic cigarette in embodiment 2 of the present application.
Fig. 4 shows a circuit diagram of a power circuit key module of an electronic cigarette according to embodiment 2 of the present application.
Figure 5 shows a circuit diagram of an impedance detection circuit of an electronic cigarette of embodiment 2 of the present application.
Figure 6 shows a circuit diagram of a control circuit of the electronic cigarette of embodiment 2 of the present application.
Fig. 7 is a circuit diagram showing a MOS transistor drive circuit of an electronic cigarette according to embodiment 2 of the present application.
Fig. 8 is a circuit diagram showing a MOS transistor voltage regulator circuit of an electronic cigarette according to embodiment 2 of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In addition, technical solutions between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the scope of the disclosure of the present invention.
In the following description, suffixes such as "module", "part", "assembly", or "unit" are used only for the convenience of explanation of the present invention, and do not have a specific meaning per se. And thus may be used mixedly.
The present invention will be described in further detail below with reference to specific embodiments and drawings.
As shown in fig. 1 to 2, an embodiment of the present application is an electronic cigarette power incremental control method, which is applied to an electronic cigarette control system to control the working power of an atomizing core, and includes the following steps:
s1, detecting and acquiring the resistance value of the atomization core after the atomization core is switched on to work;
the atomization core is a tobacco tar atomization component of the electronic cigarette, is connected with a battery, starts to work after the atomization core is powered on, has a fixed resistance value, and has a resistance value range of 0.06-5 omega and a corresponding heating power range of 2-95 w.
S2, matching the initial corresponding output voltage to the atomizing core according to the resistance value of the atomizing core;
after obtaining the resistance value of the atomizing core, matching an initial output voltage to the atomizing core to start the operation of the atomizing core, the initial output voltage being usually preset, for example, the atomizing core is required to operate at a power value P, and according to the obtained resistance value R of the atomizing core, according to the formula P UI U2The initial output voltage U, where U is the voltage across the atomizing core and I is the current flowing through the atomizing core, is determined and determined by the magnitude of the output voltage.
S3, counting the continuous accumulated working time of the atomizing core;
when the atomizing core is switched on to work, the current continuous accumulated working time is counted, one mode is that whether the atomizing core works or not can be confirmed by detecting whether the working current or the working voltage of the atomizing core exists or not, the accumulated working time is continuous working time after one switching-on, and when the current or the voltage stops, the operation is finished, and the next switching-on work is waited.
S4, controlling and adjusting the output voltage to the atomizing core according to the accumulated working time, wherein the output voltage is in positive correlation with the accumulated working time;
when smoking, in order to prolong the inspiration time and increase the power of the atomizing core at the same time in one inspiration, the atomization device generates more smoke effect, and controls and adjusts the increase of the output voltage according to the accumulated working time of the atomizing core, wherein the output voltage and the accumulated working time are in direct proportion; and after the accumulated working time reaches a preset time value, controlling the output voltage to keep unchanged.
In this embodiment, when the accumulated operating time increases by 0.5 second every time, the output voltage is controlled to increase by 2% of the output voltage corresponding to the initial time, and when the accumulated operating time reaches 8 seconds, the output voltage is controlled to be unchanged, that is, the output voltage can increase by 32% at most. In other embodiments, the interval time and the increasing value of the output voltage can be adjusted and selected according to needs.
S5, clearing the accumulated working time after the atomization core stops working;
and after the atomization core stops working, clearing the last accumulated working time, and waiting for the next reconnection work.
As shown in fig. 3, the second embodiment is an electronic cigarette, which includes an atomizing core 1, a battery assembly 2 and a power increment control system for controlling the work of the atomizing core, wherein the power increment control system includes a control circuit 3, an impedance detection circuit 4, a voltage regulation circuit 5 and a power supply circuit 6, the battery assembly provides power for the atomizing core and the control system, the control circuit is respectively connected with the impedance detection circuit and the voltage regulation circuit, and the impedance detection circuit is connected with the atomizing core; the voltage regulating circuit is also connected with the power supply circuit.
As shown in fig. 4, the power circuit is configured to process the output power of the battery assembly, convert the output power into different voltages, and supply the voltages to other components, and the power circuit further includes a key module configured to switch on and off the power supply of the electronic cigarette, as shown in fig. 4, the power circuit of the embodiment is a circuit diagram of the key module.
As shown IN fig. 5, the impedance detection circuit is used for detecting the resistance value of the atomizing core after the atomizing core is connected to work, the impedance detection circuit comprises an impedance measurement chip U13, a signal input pin IN + of the impedance measurement chip U13 is connected to the output voltage VOUT of the voltage regulation circuit, the signal input pin IN-is connected to the output voltage VOUT of the voltage regulation circuit after passing through two current limiting resistors R42 and R43 which are connected IN parallel, and the signal input pin IN-is also connected to the electrical connection terminal F + of the atomizing core.
The two ends of the atomizing core are respectively connected with a power connection end F + and a power connection end F-, when the atomizing core works, the output voltage VOUT passes through the current limiting resistors R42 and R43, and the atomizing core forms a current path to the ground, and because the current limiting resistors R42 and R43 are connected IN parallel, the two ends after being connected IN parallel are respectively connected with two signal input pins IN + and IN-of the impedance measurement chip U13, namely, the voltage difference between the two signal input pins IN + and IN-is the voltage at the two ends of the current limiting resistors R42 and R43, and the resistance value of the atomizing core can be detected by detecting the voltage at the two ends of the current limiting resistors R42 and R43.
The output pin OUT of the impedance measurement chip U13 is connected with the processor CPU of the control circuit in FIG. 6 through the resistor R47, and transmits the RES ADC1 signal of the band stop value information to the processor CPU of the control circuit.
As shown in fig. 6, the control circuit is configured to obtain the resistance value of the atomizing core, match the initial output voltage according to the resistance value, send a control signal to the voltage regulating circuit, and count the accumulated working time of the atomizing core. The control circuit comprises a processor CPU, a PA1 pin of the processor CPU receives the resistance value of the atomizing core from the impedance measurement chip U13, matches with an initial output circuit VOUT, and sends out a PWM1H pulse signal through a PA9 pin to control the voltage output of the voltage regulating circuit. Meanwhile, the control circuit starts to count the accumulated working time of the atomizing core according to the electrifying trigger signal of the power circuit.
As shown in fig. 7 and 8, the voltage regulating circuit is used for regulating the output voltage to the atomizing core after receiving the control signal of the control circuit. The voltage regulating circuit comprises an MOS tube voltage regulating circuit 6 and an MOS tube driving circuit 7, wherein the MOS tube driving circuit comprises an MOS tube driving chip U11, and the MOS tube voltage regulating circuit comprises three MOS tubes Q4, Q5 and Q6.
An input pin IN of the MOS tube driving chip U11 receives a PWM1H signal of a processor CPU of the control circuit, a control output pin HG1 of the MOS tube driving chip is simultaneously connected with grids of MOS tubes Q4 and Q5, a MOS tube Q4 is connected with a MOS tube Q5 IN parallel, a drain electrode of the MOS tube Q4 is simultaneously connected with a power output end VBAT of the power circuit, a MOS tube Q4 is connected with a source electrode of a MOS tube Q5 IN parallel, a control output pin L G1 of the MOS tube driving chip is connected with a grid electrode of the MOS tube Q6, a drain electrode of the MOS tube Q6 is simultaneously connected with source electrodes of the MOS tube Q4 and the MOS tube Q5, and a source electrode of the.
Sources of the MOS transistors Q4 and Q5 pass through the inductor L and then are connected to the atomizing core as an output voltage VOUT, and the output voltage VOUT passes through four capacitors C29, C30, C31, and C39 connected in parallel and then is grounded to realize voltage stabilization filtering of the output voltage VOUT.
The control process that the electron cigarette power of this embodiment increases progressively is, work on atomizing core, impedance measurement chip U13 can detect the resistance of atomizing core, through its output pin OUT with RES ADC1 signal transmission to control circuit's treater CPU of band elimination value information, treater CPU matches the initial operating voltage of atomizing core according to the resistance size automatically, and through PWM1H pulse signal control MOS drive chip, MOS drive chip output HG1 signal and L G1 signal control three MOS pipe Q4, Q5, the grid operating voltage of Q6, thereby utilize the initial output voltage VOUT of three MOS pipe control.
When the accumulated working time is increased by 0.5 second every time, the CPU controls the MOS tube driving chip through the PWM1H pulse signal, the MOS tube driving chip outputs HG1 signals and L G1 signals to control the grid working voltage of three MOS tubes Q4, Q5 and Q6, the output voltage VOUT is increased by 2% of the output voltage corresponding to the initial time, the time change of the output voltage VOUT along with the accumulated working time can be achieved, and after the accumulated working time exceeds 8 seconds, the PWM1H pulse signal is controlled to be stable, the output voltage VOUT is kept stable and unchanged, namely, the output voltage VOUT can be increased by 32% at most.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.
Claims (3)
1. An electronic cigarette power incremental control system, comprising:
the impedance detection circuit is used for detecting the resistance value of the atomization core after the atomization core is switched on to work;
the control circuit is used for acquiring the resistance value of the atomization core, matching the initial output voltage according to the resistance value, sending a control signal to the voltage regulation circuit, and counting the accumulated working time of the atomization core;
the voltage regulating circuit is used for regulating and outputting voltage to the atomizing core after receiving the control signal of the control circuit; the output voltage and the accumulated working time are in a direct proportional relation, the output voltage is controlled to increase a fixed ratio of the initial output voltage when the accumulated working time is increased by an interval time value, and the output voltage is controlled to be kept unchanged after the accumulated working time reaches a preset time value;
the control circuit is respectively connected with the impedance detection circuit and the voltage regulation circuit; the impedance detection circuit is connected with the atomizing core; the voltage regulating circuit is also connected with a power supply;
the voltage regulating circuit comprises an MOS tube voltage regulating circuit and an MOS tube driving circuit, the MOS tube voltage regulating circuit is connected with the power supply and used for generating output voltage to the atomizing core after the power supply is regulated, and the MOS tube driving circuit is connected with the control circuit and used for receiving a control signal of the control circuit and driving the MOS tube voltage regulating circuit to regulate the output voltage;
the MOS tube driving circuit comprises an MOS tube driving chip U11, the MOS tube voltage regulating circuit comprises three MOS tubes Q4, Q5 and Q6, an input end IN of the MOS tube driving chip U11 receives a PWM1H signal of a control circuit, a control output pin HG1 of the MOS tube driving chip is connected with grids of the MOS tubes Q4 and Q5 at the same time, the MOS tubes Q4 and Q5 are connected IN parallel, drains of the MOS tubes Q4 and Q5 are connected with a power supply at the same time, a source of the MOS tube driving chip is connected with an output end VOUT serving as an output voltage and connected with an atomizing core, a control output pin L G1 of the MOS tube driving chip is connected with the grid of the MOS tube Q6, the drain of the MOS tube Q6 is connected;
the sources of the MOS transistors Q4 and Q5 pass through the inductor L2 and then serve as the output terminal VOUT for the output voltage, and the output terminal VOUT is grounded through four capacitors C29, C30, C31 and C39 connected in parallel.
2. The electronic cigarette power increment control system of claim 1, wherein the impedance detection circuit comprises an impedance measurement chip U13, a signal input pin IN + of the impedance measurement chip U13 is connected to the output voltage of the voltage regulation circuit, the signal input pin IN-is connected to the output voltage of the voltage regulation circuit through a current limiting resistor R42 and a current limiting resistor R43 which are connected IN parallel, and an output end OUT of the impedance measurement chip is connected to the control circuit through a resistor R47.
3. An electronic cigarette comprising an electronic cigarette power incremental control system as claimed in any one of claims 1 to 2.
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| CN110973711A (en) * | 2019-12-25 | 2020-04-10 | 深圳市吉迩科技有限公司 | Suction data display method and device and aerosol generating equipment |
| CN111449292A (en) * | 2020-05-26 | 2020-07-28 | 深圳市吉迩科技有限公司 | Aerosol generating device, aerosol generating system, and aerosol generating method |
| CN112586808A (en) * | 2020-12-01 | 2021-04-02 | 深圳市吉迩科技有限公司 | Atomizing core heating method and system and aerosol generating device |
| CN115129106B (en) * | 2022-08-31 | 2023-11-21 | 深圳市倍轻松科技股份有限公司 | Heating circuit, control method, chip, electronic equipment and massager |
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| CN109875132A (en) * | 2019-04-23 | 2019-06-14 | 深圳市吉迩科技有限公司 | A kind of electronic cigarette adaptive power control method and its device |
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| CN110200326A (en) | 2019-09-06 |
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