CN112773001A - Atomizer power self-adaptive circuit, chip, control method and atomization device - Google Patents
Atomizer power self-adaptive circuit, chip, control method and atomization device Download PDFInfo
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- CN112773001A CN112773001A CN202110107961.2A CN202110107961A CN112773001A CN 112773001 A CN112773001 A CN 112773001A CN 202110107961 A CN202110107961 A CN 202110107961A CN 112773001 A CN112773001 A CN 112773001A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/51—Arrangement of sensors
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Abstract
The invention belongs to the technical field of atomizers and discloses an atomizer power self-adaptive circuit, a chip, a control method and an atomization device. The circuit comprises: the air pressure sensing circuit is used for detecting the current air pressure at the suction nozzle end of the electronic cigarette, converting the current air pressure into a pressure electric signal and outputting the pressure electric signal to the control unit; the control unit is used for generating a power control signal according to the pressure electric signal and sending the power control signal to the power regulating circuit; and the power regulating circuit is used for generating a driving electric signal according to the power control signal and driving the atomizing circuit to atomize the tobacco tar according to the driving electric signal. According to the invention, the current suction force of the user to the electronic cigarette is obtained through the circuit, and the power of the atomization circuit is adjusted according to the suction force of the user, so that the smoke output amount is more in line with the requirements of the user, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of atomizers, in particular to an atomizer power self-adaptive circuit, an atomizer power self-adaptive chip, an atomizer power self-adaptive control method and an atomizer.
Background
The atomizer in the electronic cigarette has the function of atomizing tobacco tar, and the tobacco tar on the internal oil guide cotton is evaporated by the heating wire in the atomizer to obtain the smoke. Some novice users may have excessive smoke due to excessive power or insufficient power to meet the user's needs during the use of the electronic cigarette.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an atomizer power self-adaptive circuit, a chip, a control method and an atomizer, and aims to solve the technical problem that the atomizer power control in the prior art cannot be self-adaptive to user requirements.
To achieve the above object, the present invention provides an atomizer power adaptive circuit, comprising: the device comprises an air pressure sensing circuit, a power regulating circuit, a control unit and an atomization circuit; the output end of the air pressure sensing circuit is connected with the input end of the control unit, the control end of the control unit is connected with the input end of the power regulating circuit, and the output end of the power regulating circuit is connected with the input end of the atomization circuit;
the air pressure sensing circuit is used for detecting the current air pressure at the suction nozzle end of the electronic cigarette, converting the current air pressure into a pressure electric signal and outputting the pressure electric signal to the control unit;
the control unit is used for generating a power control signal according to the pressure electric signal and sending the power control signal to the power regulating circuit;
and the power regulating circuit is used for generating a driving electric signal according to the power control signal and driving the atomizing circuit to atomize the tobacco tar according to the driving electric signal.
Optionally, the control unit is further configured to determine a current smoking frequency of the user according to the pressure electric signal;
the control unit is further used for sending a cut-off signal to the power regulating circuit when the current smoking times are larger than a preset smoking threshold value within a first preset time;
and the power regulating circuit is used for generating a shutdown signal according to the cutoff signal and driving the atomization circuit to stop working according to the shutdown signal.
Optionally, the control unit is configured to determine a current suction value according to the pressure electrical signal;
the control unit is also used for judging whether the user completes one smoking action according to the current suction value and recording the current smoking times when the user completes one smoking action.
Optionally, the nebulizer power adaptation circuit further comprises a smoke sensor; the output end of the smoke sensor is connected with the input end of the control unit;
the smoke sensor is used for detecting the current smoke flow generated by the atomization of the atomization circuit and generating a smoke electric signal according to the current smoke flow and outputting the smoke electric signal to the control unit.
Optionally, the control unit is further configured to obtain a current aerosol generation amount of the atomization circuit according to the aerosol electric signal, and send a cut-off signal to the power adjustment circuit when the current aerosol generation amount is greater than a preset aerosol generation amount within a second preset time;
and the power regulating circuit is used for generating a shutdown signal according to the cutoff signal and driving the atomization circuit to stop working according to the shutdown signal.
Optionally, the control unit is further configured to obtain a current aerosol generation amount of the atomization circuit according to the aerosol electric signal, and determine a remaining aerosol generation amount according to the current aerosol generation amount and a preset aerosol generation amount;
the control unit is further used for generating prompt information according to the residual smoke generation amount and sending the prompt information to a display screen of the electronic cigarette so that the display screen can display the prompt information.
Optionally, the air pressure sensing circuit includes a sensing bridge, an amplifying unit, a comparing unit and a filtering unit; the output end of the sensing bridge is connected with the input end of the amplifying unit, the output end of the amplifying unit is connected with the input end of the comparing unit, and the output end of the comparing unit is connected with one end of the filtering unit and one input end of the control unit;
the sensing bridge is used for detecting the current air pressure at the suction nozzle end of the electronic cigarette, converting the current air pressure into bridge signals and respectively inputting the bridge signals into the amplifiers in the amplifying unit;
the amplifying unit is used for respectively amplifying the bridge signals and outputting the amplified bridge signals to the comparing unit;
the comparison unit is used for comparing the amplified bridge signals and outputting pressure electric signals according to the comparison result;
and the filtering unit is used for filtering the pressure electric signal and outputting the filtered pressure electric signal to the control unit.
In addition, in order to achieve the above object, the present invention further provides a chip, where the chip includes the atomizer power adaptive circuit as described above, and the chip is a system-on-chip.
In addition, in order to achieve the above object, the present invention also provides a control method of a nebulizer power adaptive circuit, the control method being based on the nebulizer power adaptive circuit as described above, the control method including:
the air pressure sensing circuit detects the current air pressure at the suction nozzle end of the electronic cigarette, converts the current air pressure into a pressure electric signal and outputs the pressure electric signal to the control unit;
the control unit generates a power control signal according to the pressure electric signal and sends the power control signal to a power regulating circuit;
and the power regulating circuit generates a driving electric signal according to the power control signal and drives the atomizing circuit to atomize the tobacco tar according to the driving electric signal.
In addition, in order to achieve the above object, the present invention further provides an atomization device, which includes the atomizer power adaptive circuit as described above.
The present invention provides the circuit described above, including: the air pressure sensing circuit is used for detecting the current air pressure at the suction nozzle end of the electronic cigarette, converting the current air pressure into a pressure electric signal and outputting the pressure electric signal to the control unit; the control unit is used for generating a power control signal according to the pressure electric signal and sending the power control signal to the power regulating circuit; and the power regulating circuit is used for generating a driving electric signal according to the power control signal and driving the atomizing circuit to atomize the tobacco tar according to the driving electric signal. According to the invention, the current suction force of the user to the electronic cigarette is obtained through the circuit, and the power of the atomization circuit is adjusted according to the suction force of the user, so that the smoke output amount is more in line with the requirements of the user, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a first embodiment of a power adaptive circuit for an atomizer according to the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the atomizer power adaptive circuit according to the present invention;
FIG. 3 is a schematic diagram of an air pressure sensing circuit according to a third embodiment of the atomizer power adaptive circuit of the present invention;
FIG. 4 is a schematic circuit diagram of an air pressure sensing circuit according to a third embodiment of the atomizer power adaptive circuit of the present invention;
fig. 5 is a schematic flow chart of a first embodiment of a power adaptive circuit control method for an atomizer according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | |
204 | |
|
| 200 | Air pressure sensing circuit | R1～R12 | First to |
|
| 300 | Power regulating circuit | A1～A2 | First to |
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| 400 | Atomization circuit | | Ground connection | |
| 500 | Smoke sensor | C | Capacitor with a |
|
| 201 | Sensing bridge | V | |
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| 201 | Amplification unit | A3 | Comparator with a |
|
| 203 | Filter unit |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An embodiment of the present invention provides an atomizer power adaptive circuit, and fig. 1 is a schematic structural diagram of a first embodiment of the atomizer power adaptive circuit according to the present invention.
In this embodiment, the circuit includes: the air pressure sensing circuit 200, the power regulating circuit 300, the control unit 100 and the atomization circuit 400; the output end of the air pressure sensing circuit 200 is connected to the input end of the control unit 100, the control end of the control unit 100 is connected to the input end of the power regulating circuit 300, and the output end of the power regulating circuit 300 is connected to the input end of the atomization circuit 400.
It should be noted that the power adaptive circuit of the atomizer in this embodiment is suitable for an electronic cigarette, and the circuit may be integrated in a System On Chip (System On Chip), the control unit 100 stores a control program in advance, and the control program may generate different power control electrical signals according to the current air pressure, the current smoke concentration, or the current total smoke generation amount, so that the atomization circuit may atomize according to the different power control signals.
The air pressure sensing circuit 200 is configured to detect a current air pressure at a mouthpiece end of the electronic cigarette, convert the current air pressure into a pressure electrical signal, and output the pressure electrical signal to the control unit 100.
It should be noted that the air pressure sensor 200 may be a patch type pressure sensing circuit, and the pressure sensing circuit is suitable for smaller electronic devices, occupies a small space, and is convenient for layout.
It will be appreciated that as the user inhales on the mouthpiece end of the e-cigarette, the flow rate of gas in the mouthpiece is changed, with the consequent change in the pressure of the gas in the mouthpiece, and hence the degree of suction applied to the mouthpiece by the user can be reflected by the pressure; further, a detection end of the air pressure sensing circuit 200 is disposed in the mouthpiece, and the detection end is used for converting the pressure into an electrical signal and outputting the electrical signal to the control unit for analysis.
The control unit 100 is configured to generate a power control signal according to the pressure electrical signal, and send the power control signal to the power adjusting circuit 300.
It should be noted that the control unit 100 stores a control program in advance, and can obtain a corresponding air pressure value according to the pressure electrical signal, where the air pressure value may reflect a current suction value applied to the electronic cigarette by a user. The control unit 100 obtains a target power corresponding to a current air pressure value according to a pre-stored air pressure value-power curve, and generates a corresponding power control signal according to the target power, so as to control the power adjusting circuit 300 to perform corresponding power output on the atomizing circuit 400.
It should be understood that the pressure value-power curve is obtained through experiments, and the pressure value and the power curve are in a linear relation in a preset pressure value interval. When the air pressure value corresponding to the suction force applied by the user is smaller than the lowest value of the preset air pressure value interval, not outputting power; and when the suction force applied by the user is greater than the highest value of the preset air pressure value interval, outputting power corresponding to the highest value.
The power adjusting circuit 300 is configured to generate a driving electrical signal according to the power control signal, and drive the atomizing circuit 400 to atomize the tobacco tar according to the driving electrical signal.
It should be appreciated that the atomization circuit 400 has different atomization efficiencies for the tobacco smoke at different powers, such as: when the power received by the atomization circuit 400 is high, the atomization efficiency is high, and the smoke generated by atomizing the tobacco tar is large. When the power received by the atomization circuit 400 is low, the atomization efficiency is low, and the smoke generated by atomizing the tobacco tar is small.
In specific implementation, a user applies a certain suction force to the cigarette holder, the control unit determines target power corresponding to current air pressure according to an air pressure value-power curve in a pre-stored control program, and then atomization is performed according to the target power.
According to the embodiment of the invention, the air pressure value corresponding to the suction force applied by the user to the cigarette holder of the electronic cigarette is detected through the atomizer power self-adaptive circuit, and the output power is determined according to the air pressure value, so that the atomization circuit carries out corresponding atomization, and the problem of absorbing labor caused by overhigh smoke amount or enough suction force and low atomizer power due to overhigh suction force of the user is solved.
Referring to fig. 2, fig. 2 is a schematic diagram of a second embodiment of the atomizer power adaptive circuit according to the present invention shown in fig. 2; based on the above embodiments, a second embodiment of the atomizer power adaptation circuit of the present invention is presented.
The atomizer power adaptation circuit further comprises a smoke sensor 500; the output of the smoke sensor is connected to the input of the control unit 100.
The smoke sensor 500 is configured to detect a current smoke flow generated by the atomization circuit through atomization, and generate a smoke electrical signal according to the current smoke flow and output the smoke electrical signal to the control unit 100.
It should be noted that the smoke can be discharged from the cigarette holder only when the user applies the suction force, so the detection end of the smoke sensor 500 is installed between the part of the atomization circuit 400 generating the smoke and the passage of the cigarette holder, and is used for detecting the current smoke flow passing through the detection end of the smoke sensor 500, and the total smoke amount corresponding to the current smoke flow is also the smoke amount inhaled into the mouth of the user.
The control unit 100 is further configured to obtain a current aerosol generation amount of the atomization circuit 400 according to the aerosol electric signal, and send a stop signal to the power adjustment circuit 300 when the current aerosol generation amount is greater than a preset aerosol generation amount within a second preset time.
The absorption action of the user occurs after the generation of the smoke, and one absorption action of the user can absorb the currently generated smoke amount, so that the current smoke generation amount can be obtained according to the relation between the current smoke flow rate and the time. The second preset time may be set to an overall required time for one normal smoking, for example: the second preset time is set to be five minutes, the preset smoke generation amount is the smoke amount generated by 10g of tar, and in five minutes, the user takes in the smoke amount generated by 10g of tar, namely, a cut-off signal is generated.
The power adjusting circuit 300 is configured to generate a shutdown signal according to the cutoff signal, and drive the atomization circuit 400 to stop working according to the shutdown signal.
It will be readily appreciated that the power conditioning circuit 300 may be implemented to directly disable power output to disable the aerosolization circuit 400.
The control unit 100 is further configured to obtain a current aerosol generation amount of the atomization circuit 400 according to the aerosol electric signal, and determine a remaining aerosol generation amount according to the current aerosol generation amount and a preset aerosol generation amount.
It is easy to understand that, because the amount of smoke that can be generated by an electronic cigarette cartridge is limited, the cartridge needs to be replaced after being consumed, the preset smoke generation amount can be the amount of smoke that can be generated by one cartridge, and the remaining smoke generation amount that can be generated by one cartridge is determined according to the current smoke generation amount.
The control unit 100 is further configured to generate prompt information according to the residual smoke generation amount, and send the prompt information to a display screen of the electronic cigarette, so that the display screen displays the prompt information.
It should be understood that the electronic cigarette is usually provided with devices such as a display screen to remind the residual capacity of the electronic cigarette, and the residual smoke volume of the user can be displayed through the display screen, so that the effect of reminding the user is achieved, and the phenomenon that the atomization circuit is burnt due to excessive smoking or untimely replacement of a smoke bomb by the user is prevented.
In specific implementation, the control unit can also obtain the stored user preset smoke quantity, and the smoke sensor obtains the real-time smoke quantity of the atomizer, converts the real-time smoke quantity into a current signal and sends the current signal to the control unit; when the real-time smoke amount is not equal to the preset smoke amount, the control unit outputs a control signal to the power regulating circuit, the power regulating circuit performs power regulation according to the control signal and outputs a driving current to the atomizing circuit so as to regulate the current output power of the atomizing circuit and achieve the effect of controlling the output smoke amount.
The embodiment acquires the generated smoke amount through the smoke sensor, determines the current power control according to the smoke amount and the suction of a user, enables the smoke amount to meet the requirements of the user, stops the atomization of the atomization circuit when reaching the preset amount, limits the inhalation amount of the user, prevents addiction, and is beneficial to the user to supervise the user.
Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of an air pressure sensing circuit according to a third embodiment of the atomizer power adaptive circuit of the present invention; fig. 4 is a schematic circuit diagram of an air pressure sensing circuit according to a third embodiment of the atomizer power adaptive circuit of the present invention. Based on the above embodiments, a third embodiment of the atomizer power adaptive circuit of the present invention is presented.
The control unit 100 is further configured to determine a current smoking frequency of the user according to the pressure electric signal; the control unit 100 is further configured to send a cut-off signal to the power adjusting circuit when the current smoking frequency is greater than a preset smoking threshold within a first preset time.
It should be noted that the first preset time may be set to five minutes, the preset smoking threshold may be set to 10 times, and ten times of smoking within five minutes is reached, that is, a cutoff signal occurs.
The power regulating circuit 300 is configured to generate a shutdown signal according to the cutoff signal, and drive the atomization circuit to stop working according to the shutdown signal.
Further, the control unit 100 is configured to determine a current suction value according to the pressure electrical signal.
The control unit 100 is further configured to determine whether the user has finished a smoking action according to the current smoking value, and record the current smoking times when the user has finished a smoking action.
It should be noted that, when the user performs a smoking action, the pressure value will rise to a certain value and then fall, and the smoking action frequency of the user is determined according to the number of peak values in the current smoking value-time curve.
Further, the air pressure sensing circuit includes a sensing bridge 201, an amplifying unit 202, a comparing unit 204 and a filtering unit 203; the output end of the sensing bridge 201 is connected to the input end of the amplifying unit 202, the output end of the amplifying unit 202 is connected to the input end of the comparing unit 204, and the output end of the comparing unit 204 is connected to one end of the filtering unit and one input end of the control unit 100.
The sensing bridge 201 is configured to detect a current air pressure at a mouthpiece end of the electronic cigarette, convert the current air pressure into bridge signals, and input the bridge signals to the amplifiers in the amplifying unit 202, respectively.
Referring to fig. 4, the sensing bridge 201 includes first to fourth resistors R1 to R4, and the amplifying unit 202 includes fifth to ninth resistors R5 to R9, a first amplifier a1 and a second amplifier a 2; a first end of the first resistor R1 is connected with a second end of a second resistor R2 and a non-inverting input end of the first amplifier A1; a second end of the first resistor R1 is connected to a second end of the third resistor R3 and to ground; a first end of the third resistor R3 is connected with a second end of a fourth resistor R4 and a non-inverting input end of the second amplifier A2; the first end of the second resistor R2 is connected with the first end of the fourth resistor R4 and is connected to a power supply voltage.
It is easy to understand that, in the sensing bridge 201, the first resistor R1 is a voltage dependent resistor, and the resistance of the first resistor R1 changes with the change of the pressure, so that the level of the connection point of the first resistor R1 and the second resistor R2 in the bridge is different from the level of the connection point of the fourth resistor R4 and the third resistor R3.
The amplifying units 202 are configured to amplify the bridge signals respectively, and output the amplified bridge signals to the comparing unit 204.
A non-inverting input terminal of the first amplifier a1 is connected to a second terminal of the second resistor R2, an inverting input terminal of the first amplifier a1 is connected to a first terminal of a fifth resistor R5 and a first terminal of a sixth resistor R6, and a second terminal of the sixth resistor R6 is connected to an output terminal of the first amplifier a1 and a first terminal of the eighth resistor R8; the non-inverting input terminal of the second amplifier A2 is connected to the second terminal of the fourth resistor R4, and the inverting input terminal of the second amplifier A2 is connected to the second terminal of the fifth resistor R5 and the first terminal of the seventh resistor R7; the second end of the seventh resistor R7 is connected to the output terminal of the second amplifier a2 and the first end of the ninth resistor R9.
Each amplifier in the amplifying unit 202 amplifies the level of each of the upper and lower bridges, and inputs the amplified level to the comparator a3 for comparison.
The comparing unit 204 is configured to compare the amplified bridge signal, and output a pressure electrical signal according to a comparison result.
The comparing unit 204 includes tenth to twelfth resistors R10 to R12 and a comparator A3, wherein an inverting input terminal of the comparator A3 is connected to a first terminal of an eleventh resistor R11 and a second terminal of the eighth resistor R8, a non-inverting input terminal of the comparator A3 is connected to a second terminal of the ninth resistor R9 and a first terminal of the tenth resistor R10, a second terminal of the tenth resistor R10 is connected to a voltage terminal, an output terminal of the comparator A3 is connected to a first terminal of a twelfth resistor R12 and a second terminal of the eleventh resistor R11, a second terminal of the twelfth resistor R12 is connected to a first terminal of a capacitor C, and a second terminal of the capacitor C is grounded.
The filtering unit 203 is configured to filter the pressure electrical signal, and output the filtered pressure electrical signal to the control unit 100.
It should be noted that, through comparison of the comparator a3, a differential pressure signal is obtained, which can reflect the current pressure change and is output to the control unit 100 through the filtering action of the capacitor C.
According to the embodiment of the invention, the air pressure value corresponding to the suction force applied by the user to the cigarette holder of the electronic cigarette is detected through the atomizer power self-adaptive circuit, and the output power is determined according to the air pressure value, so that the atomization circuit carries out corresponding atomization, and the problem of absorbing labor caused by overhigh smoke amount or enough suction force and low atomizer power due to overhigh suction force of the user is solved.
Referring to fig. 5, fig. 5 is a schematic flow chart of a first embodiment of a power adaptive circuit control method for an atomizer according to the present invention.
In this embodiment, the circuit includes: the air pressure sensing circuit 200, the power regulating circuit 300, the control unit 100 and the atomization circuit 400; the output end of the air pressure sensing circuit 200 is connected to the input end of the control unit 100, the control end of the control unit 100 is connected to the input end of the power regulating circuit 300, and the output end of the power regulating circuit 300 is connected to the input end of the atomization circuit 400.
It should be noted that the power adaptive circuit of the atomizer in this embodiment is suitable for an electronic cigarette, and the circuit may be integrated in a System On Chip (System On Chip), the control unit 100 stores a control program in advance, and the control program may generate different power control electrical signals according to the current air pressure, the current smoke concentration, or the current total smoke generation amount, so that the atomization circuit may atomize according to the different power control signals.
Step S10: the air pressure sensing circuit detects the current air pressure at the suction nozzle end of the electronic cigarette, converts the current air pressure into a pressure electric signal and outputs the pressure electric signal to the control unit.
It should be noted that the air pressure sensor 200 may be a patch type pressure sensing circuit, and the pressure sensing circuit is suitable for smaller electronic devices, occupies a small space, and is convenient for layout.
It will be appreciated that as the user inhales on the mouthpiece end of the e-cigarette, the flow rate of gas in the mouthpiece is changed, with the consequent change in the pressure of the gas in the mouthpiece, and hence the degree of suction applied to the mouthpiece by the user can be reflected by the pressure; further, a detection end of the air pressure sensing circuit 200 is disposed in the mouthpiece, and the detection end is used for converting the pressure into an electrical signal and outputting the electrical signal to the control unit for analysis.
Step S20: the control unit generates a power control signal according to the pressure electric signal and sends the power control signal to the power regulating circuit.
It should be noted that the control unit 100 stores a control program in advance, and can obtain a corresponding air pressure value according to the pressure electrical signal, where the air pressure value may reflect a current suction value applied to the electronic cigarette by a user. The control unit 100 obtains a target power corresponding to a current air pressure value according to a pre-stored air pressure value-power curve, and generates a corresponding power control signal according to the target power, so as to control the power adjusting circuit 300 to perform corresponding power output on the atomizing circuit 400.
It should be understood that the pressure value-power curve is obtained through experiments, and the pressure value and the power curve are in a linear relation in a preset pressure value interval. When the air pressure value corresponding to the suction force applied by the user is smaller than the lowest value of the preset air pressure value interval, not outputting power; and when the suction force applied by the user is greater than the highest value of the preset air pressure value interval, outputting power corresponding to the highest value.
Step S30: the power adjusting circuit 300 generates a driving electrical signal according to the power control signal, and drives the atomization circuit 400 to atomize the tobacco tar according to the driving electrical signal.
It should be appreciated that the atomization circuit 400 has different atomization efficiencies for the tobacco smoke at different powers, such as: when the power received by the atomization circuit 400 is high, the atomization efficiency is high, and the smoke generated by atomizing the tobacco tar is large. When the power received by the atomization circuit 400 is low, the atomization efficiency is low, and the smoke generated by atomizing the tobacco tar is small.
In specific implementation, a user applies a certain suction force to the cigarette holder, the control unit determines target power corresponding to current air pressure according to an air pressure value-power curve in a pre-stored control program, and then atomization is performed according to the target power.
According to the embodiment of the invention, the air pressure value corresponding to the suction force applied by the user to the cigarette holder of the electronic cigarette is detected through the atomizer power self-adaptive circuit, and the output power is determined according to the air pressure value, so that the atomization circuit carries out corresponding atomization, and the problem of absorbing labor caused by overhigh smoke amount or enough suction force and low atomizer power due to overhigh suction force of the user is solved.
In addition, in order to achieve the above object, the present invention further provides an atomization device, which includes the atomizer power adaptive circuit as described above.
The atomization device may be an electronic cigarette.
Since the atomization device adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
In addition, in order to achieve the above object, the present invention further provides a chip, where the chip includes the atomizer power adaptive circuit as described above, and the chip is a system-on-chip.
Since the chip adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and are not described in detail herein.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, technical details that are not elaborated in this embodiment may be referred to a power adaptive circuit of the nebulizer provided in any embodiment of the present invention, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A nebulizer power adaptation circuit, the circuit comprising: the device comprises an air pressure sensing circuit, a power regulating circuit, a control unit and an atomization circuit; the output end of the air pressure sensing circuit is connected with the input end of the control unit, the control end of the control unit is connected with the input end of the power regulating circuit, and the output end of the power regulating circuit is connected with the input end of the atomization circuit;
the air pressure sensing circuit is used for detecting the current air pressure at the suction nozzle end of the electronic cigarette, converting the current air pressure into a pressure electric signal and outputting the pressure electric signal to the control unit;
the control unit is used for generating a power control signal according to the pressure electric signal and sending the power control signal to the power regulating circuit;
and the power regulating circuit is used for generating a driving electric signal according to the power control signal and driving the atomizing circuit to atomize the tobacco tar according to the driving electric signal.
2. The nebulizer power adaptation circuit of claim 1, wherein the control unit is further configured to determine a current number of puffs for the user from the pressure electrical signal;
the control unit is further used for sending a cut-off signal to the power regulating circuit when the current smoking times are larger than a preset smoking threshold value within a first preset time;
and the power regulating circuit is used for generating a shutdown signal according to the cutoff signal and driving the atomization circuit to stop working according to the shutdown signal.
3. The nebulizer power adaptation circuit of claim 2, wherein the control unit is configured to determine a current suction value from the pressure electrical signal;
the control unit is also used for judging whether the user completes one smoking action according to the current suction value and recording the current smoking times when the user completes one smoking action.
4. The nebulizer power adaptation circuit of claim 1, wherein the nebulizer power adaptation circuit further comprises a smoke sensor; the output end of the smoke sensor is connected with the input end of the control unit;
the smoke sensor is used for detecting the current smoke flow generated by the atomization of the atomization circuit and generating a smoke electric signal according to the current smoke flow and outputting the smoke electric signal to the control unit.
5. The atomizer power adaptive circuit according to claim 4, wherein said control unit is further configured to obtain a current aerosol generation amount of said atomizer circuit according to said electrical aerosol signal, and send a cutoff signal to said power adjusting circuit when the current aerosol generation amount is greater than a preset aerosol generation amount within a second preset time;
and the power regulating circuit is used for generating a shutdown signal according to the cutoff signal and driving the atomization circuit to stop working according to the shutdown signal.
6. The atomizer power adaptive circuit according to claim 5, wherein said control unit is further configured to obtain a current aerosol generation amount of said atomizer circuit according to said electrical aerosol signal, and determine a remaining aerosol generation amount according to said current aerosol generation amount and a preset aerosol generation amount;
the control unit is further used for generating prompt information according to the residual smoke generation amount and sending the prompt information to a display screen of the electronic cigarette so that the display screen can display the prompt information.
7. The nebulizer power adaptive circuit according to any one of claims 1 to 6, wherein the air pressure sensing circuit comprises a sensing bridge, an amplifying unit, a comparing unit and a filtering unit; the output end of the sensing bridge is connected with the input end of the amplifying unit, the output end of the amplifying unit is connected with the input end of the comparing unit, and the output end of the comparing unit is connected with one end of the filtering unit and one input end of the control unit;
the sensing bridge is used for detecting the current air pressure at the suction nozzle end of the electronic cigarette, converting the current air pressure into bridge signals and respectively inputting the bridge signals into the amplifiers in the amplifying unit;
the amplifying unit is used for respectively amplifying the bridge signals and outputting the amplified bridge signals to the comparing unit;
the comparison unit is used for comparing the amplified bridge signals and outputting pressure electric signals according to the comparison result;
and the filtering unit is used for filtering the pressure electric signal and outputting the filtered pressure electric signal to the control unit.
8. A chip comprising the nebulizer power adaptation circuit according to any one of claims 1 to 7, wherein the chip is a system-on-chip.
9. A nebulizer power adaptation circuit control method, based on the nebulizer power adaptation circuit according to any one of claims 1 to 7, comprising:
the air pressure sensing circuit detects the current air pressure at the suction nozzle end of the electronic cigarette, converts the current air pressure into a pressure electric signal and outputs the pressure electric signal to the control unit;
the control unit generates a power control signal according to the pressure electric signal and sends the power control signal to a power regulating circuit;
and the power regulating circuit generates a driving electric signal according to the power control signal and drives the atomizing circuit to atomize the tobacco tar according to the driving electric signal.
10. An atomisation device comprising an atomiser power adaptation circuit as claimed in any one of claims 1 to 7.
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| CN202110107961.2A CN112773001A (en) | 2021-01-26 | 2021-01-26 | Atomizer power self-adaptive circuit, chip, control method and atomization device |
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| CN202110107961.2A CN112773001A (en) | 2021-01-26 | 2021-01-26 | Atomizer power self-adaptive circuit, chip, control method and atomization device |
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| CN112773001A true CN112773001A (en) | 2021-05-11 |
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| CN202110107961.2A Pending CN112773001A (en) | 2021-01-26 | 2021-01-26 | Atomizer power self-adaptive circuit, chip, control method and atomization device |
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Application publication date: 20210511 |