WO2019238064A1 - 一种超声雾化片工作控制电路及超声波电子烟 - Google Patents

一种超声雾化片工作控制电路及超声波电子烟 Download PDF

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Publication number
WO2019238064A1
WO2019238064A1 PCT/CN2019/090913 CN2019090913W WO2019238064A1 WO 2019238064 A1 WO2019238064 A1 WO 2019238064A1 CN 2019090913 W CN2019090913 W CN 2019090913W WO 2019238064 A1 WO2019238064 A1 WO 2019238064A1
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Prior art keywords
circuit
capacitor
resistor
voltage
ultrasonic
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PCT/CN2019/090913
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English (en)
French (fr)
Inventor
刘建福
钟科军
郭小义
黄炜
尹新强
易建华
李胜博
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湖南中烟工业有限责任公司
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Application filed by 湖南中烟工业有限责任公司 filed Critical 湖南中烟工业有限责任公司
Priority to EP19820216.0A priority Critical patent/EP3797611B1/en
Priority to US17/251,764 priority patent/US11980233B2/en
Priority to JP2021517897A priority patent/JP7129562B2/ja
Publication of WO2019238064A1 publication Critical patent/WO2019238064A1/zh

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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
    • A24F40/05—Devices without heating means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators

Definitions

  • the invention particularly relates to a working control circuit of an ultrasonic atomizing sheet and an ultrasonic electronic cigarette.
  • a conventional ultrasonic atomizer working control circuit includes a power supply module 1, a booster circuit 2, a smoking switch 3, a controller 4, a drive circuit 7, and an LC oscillation circuit 5, and the power supply module 1 passes in sequence.
  • the booster circuit 2, the drive circuit 7, and the LC oscillating circuit 5 are electrically connected to the ultrasonic atomizer J
  • the smoke switch 3 is electrically connected to the input terminal of the controller 4
  • the output terminal of the controller 4 is connected to the enable terminal of the booster circuit 2. Electrical connection.
  • the controller 4 detects a potential change at the input terminal, so that the controller 4 controls the boost circuit 2 to work.
  • the voltage output by the power module 1 is boosted to a preset voltage value by the boost circuit 2 and then The constant preset voltage value drives the ultrasonic atomizing sheet to work.
  • the power of the ultrasonic atomizing sheet J needs to be controlled, so that The voltage value output from the booster circuit 2 is small.
  • An object of the present invention is to provide a control circuit for an ultrasonic atomizing sheet and an ultrasonic electronic cigarette in response to the shortcomings of the prior art described above.
  • the ultrasonic atomizing sheet has a fast startup speed, and the ultrasonic atomizing sheet does not dry out or due to excessive operating voltage. Larger and shorter life, stable smoke volume, more energy saving, and good user experience.
  • the technical solutions adopted by the present invention are:
  • An ultrasonic atomizer chip working control circuit includes a power module, a booster circuit, a smoking switch, a controller, a drive circuit, and an LC oscillation circuit.
  • the power module passes the booster circuit, the drive circuit, the LC oscillation circuit, and the ultrasonic atomizer in order.
  • the smoke switch is electrically connected to the input terminal of the controller, and the output terminal of the controller is electrically connected to the enable terminal of the boost circuit; its structural feature is also used to When the interval time is greater than the preset time, the voltage regulator circuit that raises the voltage value sent from the booster circuit to the drive circuit, the output end of the booster circuit is electrically connected to the input end of the drive circuit through the voltage regulator circuit, and the output end of the controller It is electrically connected to the control terminal of the voltage regulating circuit.
  • the voltage output from the booster circuit to the drive circuit is adjusted by the voltage regulating circuit, which can solve the problem that the amount of smoke at the beginning of the ultrasonic electronic cigarette is small due to insufficient power.
  • the controller controls the voltage regulating circuit to work, and the voltage output by the voltage boosting circuit is increased by the voltage regulating circuit, so that the voltage output to the driving circuit is increased. , The output power is increased, thereby increasing the working voltage of the ultrasonic atomizing tablet, so that the ultrasonic atomizing tablet starts fast and emits smoke fast, and solves the problem of ultrasonic electronic cigarettes
  • the time interval of the smoke is relatively long, which causes the problems of small amount of smoke and slow startup speed.
  • the controller controls the voltage regulating circuit to not work, and the voltage output by the booster circuit is directly output to the driving circuit, so that the input voltage of the driving circuit is lower and the output power of the driving circuit is reduced, so that the ultrasonic atomizing sheet is atomized.
  • the smoke is basically the same as when it is just started, the smoke volume is stable, and the user experience is good; at the same time, it is more energy-saving, and the ultrasonic atomizing film will not dry out or shorten the life due to excessive working voltage.
  • the voltage regulating circuit includes a first MOS tube, a first resistor, and a second resistor, a reference level feedback terminal of the boost circuit is grounded through a third resistor, and a voltage output terminal of the boost circuit is connected through a fourth The resistor is electrically connected to the reference level feedback terminal of the boost circuit.
  • the gate of the first MOS tube and one end of the second resistor are electrically connected to the output terminal of the controller.
  • the drain of the first MOS tube is connected to the The voltage output terminal of the voltage circuit is electrically connected, the source of the first MOS tube is connected between the third resistor and the fourth resistor, and the other end of the second resistor is grounded.
  • the voltage output from the booster circuit to the drive circuit is adjusted by the voltage regulating circuit, which can solve the problem that the amount of smoke at the beginning of the ultrasonic electronic cigarette is small due to insufficient power.
  • the working principle of the voltage regulation circuit is as follows:
  • the present invention adjusts the upper resistor, which is the fourth resistor or the first resistor in parallel with the fourth resistor.
  • the total resistance is based on whether the pressure difference between the output voltage of the controller I / O port and Vrf is greater than the Vgs of the first MOS tube, so as to drive the switch of the first MOS tube, so that the first resistance is regulated in parallel with the fourth resistance, or the fourth resistance Separate voltage regulation.
  • the controller When the interval between the two on-times of the smoking switch is greater than the preset time, the controller outputs a low level to the gate of the first MOS tube, the first MOS tube is turned off, and the first resistor is disconnected.
  • the resistance of the fourth resistor is greater than the resistance in parallel with the first resistor, and the sampling level Vrf is unchanged.
  • the output voltage from the boost circuit to the driving circuit is increased, and the output power is increased. It increases the working voltage of the ultrasonic atomizing tablet, so that the ultrasonic atomizing tablet starts fast and emits smoke fast, and solves the problem of the time required to smoke each mouthpiece when the ultrasonic electronic cigarette smokes each mouthpiece. The longer the interval, the smaller the amount of smoke and the slower the start.
  • the controller When the interval time is not greater than the preset time, the ultrasonic atomizing sheet has been preheated, and only a small amount of power is required to generate a large amount of smoke.
  • the controller outputs a high level to the gate of the first MOS tube, the first MOS tube is turned on, and the first resistor is connected in parallel with the fourth resistor, thereby reducing the upper resistance value.
  • the formula shows that the output voltage from the booster circuit to the drive circuit is reduced, and the output power is reduced, so that the smoke atomized by the ultrasonic atomizer is basically the same as when it is just started, the amount of smoke is stable, and the user experience is good; Ultrasonic atomized tablets will not dry out or shorten their life due to excessive working voltage.
  • the voltage regulation scheme of the present invention is suitable for a boost circuit with a low sampling reference level Vrf.
  • Vrf a MOS tube circuit is designed to adjust the upper resistance of the sampling resistor, and the output voltage of the boost circuit is implemented with a simpler circuit. Dynamic adjustment.
  • it further comprises a first filter circuit connected between the voltage output terminal of the booster circuit and the driving circuit.
  • the first filtering circuit is used for filtering noise of a voltage signal output to the driving circuit after being boosted by the boosting circuit.
  • it further comprises a second filter circuit connected between the input terminal of the boosting circuit and the power module.
  • the second filtering circuit is used for filtering noise of the voltage signal output from the power module to the boosting circuit.
  • the first filter circuit includes a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor, and one end of the first capacitor, the second capacitor, the third capacitor, and the fourth capacitor are connected to the Between the voltage output terminal of the voltage circuit and the driving circuit, the other ends of the first capacitor, the second capacitor, the third capacitor, and the fourth capacitor are all grounded.
  • the second filter circuit includes a fifth capacitor, a sixth capacitor, and one end of the fifth capacitor and the sixth capacitor is connected between the input terminal of the boost circuit and the power module, and the fifth capacitor and the sixth capacitor are connected. The other end is grounded.
  • the present invention also provides an ultrasonic electronic cigarette, which is characterized by including the above-mentioned ultrasonic atomizer working control circuit.
  • the ultrasonic atomizing sheet has a fast startup speed, the ultrasonic atomizing sheet will not dry out or shorten the life due to excessive working voltage, the amount of smoke is stable, the energy is more simple, the manufacturing process is simple, and the reduction is reduced. Cost of use and user experience are good.
  • FIG. 1 is a block diagram of a working control circuit of a conventional ultrasonic atomizing sheet.
  • FIG. 2 is a block diagram of a working control circuit of the ultrasonic atomizing sheet of the present invention.
  • FIG. 3 is a specific circuit connection structure diagram of a booster circuit and a voltage regulator circuit according to the present invention.
  • 1 is a power module
  • 2 is a booster circuit
  • 3 is a smoking switch
  • 4 is a controller
  • 5 is an LC oscillating circuit
  • 6 is a voltage regulating circuit
  • 7 is a driving circuit
  • 8 is a first filter circuit
  • 9 is a first Two filter circuits
  • J is the ultrasonic atomizer
  • Q1 is the first MOS tube
  • Q2 is the second MOS tube
  • R1 is the first resistance
  • R2 is the second resistance
  • R3 is the third resistance
  • R4 is the fourth resistance
  • R5 Is the fifth resistor
  • R6 is the sixth resistor
  • R7 is the seventh resistor
  • R8 is the eighth resistor
  • R9 is the ninth resistor
  • C1 is the first capacitor
  • C2 is the second capacitor
  • C3 is the third capacitor
  • C4 is the first resistor.
  • C5 is the fifth capacitor
  • C6 is the sixth capacitor
  • C7 is the seventh capacitor
  • C8 is the eighth capacitor
  • C9 is the ninth capacitor
  • C10 is the tenth capacitor
  • C11 is the eleventh capacitor
  • C12 is the tenth capacitor.
  • Two capacitors L is the inductor
  • U is the boost chip
  • D is the diode.
  • the ultrasonic atomizer working control circuit in the ultrasonic electronic cigarette includes a power module 1, a boost circuit 2, a smoking switch 3, a controller 4, a driving circuit 7, and an LC oscillation circuit 5, and a power module 1 is electrically connected to the ultrasonic atomizer J in sequence through the boost circuit 2, the drive circuit 7, and the LC oscillation circuit 5, the smoke switch 3 is electrically connected to the input terminal of the controller 4, and the output terminal of the controller 4 is connected to the boost circuit 2
  • the enabling terminal is electrically connected; it also includes a time interval between the two on-times of the smoking switch 3 (the time between the two time when the button is pressed next) is greater than the preset time.
  • the voltage regulating circuit 6 for increasing the voltage value sent from the boosting circuit 2 to the driving circuit 7.
  • the output terminal of the boosting circuit 2 is electrically connected to the input terminal of the driving circuit 7 through the voltage regulating circuit 6, and the output terminal of the controller 4 is connected to The control terminal of the voltage regulating circuit 6 is electrically connected.
  • the voltage regulating circuit 6 includes a first MOS transistor Q1, a first resistor R1, and a second resistor R2.
  • the voltage output terminal of the booster circuit 2 is electrically connected to the input terminal of the drive circuit 7.
  • the booster circuit The reference level feedback terminal of 2 is grounded through a third resistor R3.
  • the voltage output terminal of the boost circuit 2 is electrically connected to the reference level feedback terminal of the boost circuit 2 through a fourth resistor R4.
  • the gate of the first MOS transistor Q1 and One end of the second resistor R2 is electrically connected to the output terminal of the controller 4.
  • the drain of the first MOS tube Q1 is electrically connected to the voltage output terminal of the boost circuit 2 through the first resistor R1.
  • the source of the first MOS tube Q1 Connected between the third resistor R3 and the fourth resistor R4, and the other end of the second resistor R2 is grounded.
  • the power module 1 is composed of a single-cell lithium battery charging and discharging circuit and a protection circuit.
  • the protection circuit has overcharge and overvoltage protection functions, and at the same time prevents the back-end circuit from overcurrent and short circuit.
  • the booster circuit 2 adopts a single-cell lithium battery boosting method to provide a power source of about 30W to the back-end high-frequency LC oscillation circuit 5.
  • the controller 4 realizes the low power consumption and safety protection of the entire circuit board by controlling the indication of the LED lamp and the switch of the MOS tube through a 51-core single-chip microcomputer, and detects the voltage and current changes of the ultrasonic atomizing sheet J in real time to prevent the ultrasonic atomizing sheet J Dry burning and overload, at the same time also provide a PWM signal for the back-end drive circuit 7 and real-time frequency tracking through power detection.
  • the LC oscillating circuit 5 uses a high-frequency double-excited bilateral oscillating circuit.
  • the high-frequency self-excited bilateral oscillation circuit resonates together with the capacitor and the electrostatic capacitance of the ultrasonic atomizer J by the continuous switching of the MOS tube to form a sine wave, thereby effectively driving the ultrasonic atomizer J to oscillate and to smoke Oil atomization.
  • the driving circuit 7 amplifies the two PWM signals provided by the controller 4 through the driving chip, and respectively drives the inductance and capacitance in the back-end high-frequency separately excited bilateral oscillation circuit to resonate with the ultrasonic atomizing sheet J, so that the ultrasonic atomizing sheet J performs full-wave oscillation to achieve atomization effect.
  • the ultrasonic atomizing sheet operation control circuit further includes a first filtering circuit 8 connected between the voltage output terminal of the boosting circuit 2 and the driving circuit 7 for filtering noise of the voltage signal outputted by the boosting circuit 2.
  • the first filter circuit 8 includes a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4. One end of the first capacitor C1, the second capacitor C2, the third capacitor C3, and the fourth capacitor C4 are all Connected between the voltage output terminal of the booster circuit 2 and the driving circuit 7, the other ends of the first capacitor C1, the second capacitor C2, the third capacitor C3, and the fourth capacitor C4 are grounded.
  • the ultrasonic atomizing sheet operation control circuit further includes a second filter circuit 9 connected between the input terminal of the booster circuit 2 and the power supply module 1, for filtering noise of the voltage signal output from the power supply module 1 to the booster circuit 2.
  • the second filter circuit 9 includes a fifth capacitor C5 and a sixth capacitor C6. One end of the fifth capacitor C5 and the sixth capacitor C6 is connected between the input terminal of the booster circuit 2 and the power module 1. The other end of the six capacitor C6 is grounded.
  • the boost circuit 2 includes an inductor L, a diode D, a boost chip U, a second MOS transistor Q2, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a first The seventh capacitor C7, the eighth capacitor C8, the ninth capacitor C9, the tenth capacitor C10, the eleventh capacitor C11, and the twelfth capacitor C12, one end of the second resistor R2 is connected to the enable terminal of the boost chip U. The other end of the two resistors R2 is connected to the controller 4.
  • VIN is the voltage output from the power module 1
  • EN1 is the enable signal from the controller 4
  • VOLTAGE is the voltage regulation signal from the controller 4
  • VOUT is the voltage signal output from the boost circuit 2 to the drive circuit 7.
  • the working principle of the voltage regulating circuit 6 is as follows:
  • the present invention adjusts the upper resistor, which is the fourth resistor R4 or the first resistor R1 and the fourth resistor. After the total resistance of R4 is connected in parallel, whether the voltage difference between the output voltage of the I / O port of the controller and Vrf is greater than the Vgs of the first MOS tube Q1, so as to drive the switch of the first MOS tube Q1, so that the first resistance R1 and the fourth resistance R4 Voltage regulation in parallel, or the fourth resistor R4 alone.
  • the controller 4 When the interval between the two on-times of the smoking switch 3 is greater than the preset time, the controller 4 outputs a low level to the gate of the first MOS transistor Q1, the first MOS transistor Q1 is turned off, and the first resistor R1 Disconnect, because the resistance of the fourth resistor R4 is greater than the resistance of the fourth resistor R4 in parallel with the first resistor R1, and the sampling level Vrf is unchanged.
  • the output of the boost circuit 2 to the drive The output voltage of the circuit 7 is increased, and the output power is increased, thereby increasing the working voltage of the ultrasonic atomizing sheet J, so that the ultrasonic atomizing sheet J starts fast and emits smoke fast, and solves the problem that ultrasonic electronic cigarettes are sucked in each mouth.
  • smoke there is a problem that the amount of smoke is small and the startup speed is slow because the time interval for smoking each mouth is relatively long.
  • the controller 4 When the interval time is not greater than the preset time, the ultrasonic atomizing sheet J has been preheated, and only a small amount of power is required to generate a large amount of smoke.
  • the controller 4 outputs a high level to the gate of the first MOS transistor Q1, the first MOS transistor Q1 is turned on, and the first resistor R1 and the fourth resistor R4 are connected in parallel, thereby reducing the upper resistance value.
  • the relational expression equal to the resistance ratio shows that the output voltage from the booster circuit 2 to the drive circuit 7 is reduced and the output power is reduced, so that the smoke atomized by the ultrasonic atomizer J is basically consistent with the moment of startup, and the amount of smoke is stable.
  • the user experience is good; at the same time, it is more energy-saving, and the ultrasonic atomizing sheet J will not dry out or shorten its life due to excessive working voltage.
  • the voltage regulation scheme of the present invention is suitable for a booster circuit 2 with a low sampling reference level Vrf. Utilizing the constant Vrf characteristic, a MOS tube circuit is designed to adjust the upper resistance of the sampling resistor, and the booster circuit 2 is implemented with a simpler circuit. Dynamic adjustment of output voltage.

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Abstract

一种超声雾化片工作控制电路及超声波电子烟，其中工作控制电路包括电源模块(1)、升压电路(2)、抽烟开关(3)、控制器(4)、驱动电路(7)和LC振荡电路(5)；升压电路(2)的输出端还通过调压电路(6)与驱动电路(7)连接；调压电路(6)包括第一MOS管、第一电阻和第二电阻，升压电路(2)的参考电平反馈端通过第三电阻接地，升压电路(2)的电压输出端通过第四电阻与升压电路的参考电平反馈端连接，第一MOS管的栅极和第二电阻的一端均与控制器(4)的输出端连接，第一MOS管的漏极通过第一电阻与升压电路(2)的电压输出端连接，第一MOS管的源极接在第三电阻与第四电阻之间，第二电阻的另一端接地。超声雾化片启动速度快，使用寿命长，烟雾量稳定，使用成本低，用户体验好。

Description

一种超声雾化片工作控制电路及超声波电子烟 技术领域
本发明特别涉及一种超声雾化片工作控制电路及超声波电子烟。
背景技术
如图1所示，现有的一种超声雾化片工作控制电路包括电源模块1、升压电路2、抽烟开关3、控制器4、驱动电路7和LC振荡电路5，电源模块1依次通过升压电路2、驱动电路7、LC振荡电路5与超声雾化片J电连接，抽烟开关3与控制器4的输入端电连接，控制器4的输出端与升压电路2的使能端电连接。当按下抽烟开关3时，控制器4检测到输入端的电位变化，从而控制器4控制升压电路2工作，电源模块1输出的电压经升压电路2升压至预设电压值，然后以该恒定的预设电压值驱动超声雾化片工作。
为避免抽烟开关3多次连续导通时超声雾化片J出现干烧的现象，同时为防止超声雾化片J因工作电压过大而寿命缩短，需要控制超声雾化片J的功率，从而升压电路2输出的电压值较小。
由于超声雾化片J过冷以及烟油长时间堆积等问题，在长时间不抽烟后启动电子烟时，需要较大的功率才能使超声雾化片J上的烟油迅速雾化。因而，在现有升压电路2输出的电压值较小的条件下，当抽烟开关3相邻两次导通时刻之间的间隔时间大于预设时间时，超声雾化片J的启动速度慢，当应用在电子烟上时，具体的表现就是吸烟时前几口烟雾量较小，烟雾量不稳定，用户体验差。
发明内容
现有超声雾化片工作控制电路中，升压电路输出的电压值为恒定值且升压电路输出的电压值较小，从而超声雾化片启动速度慢，吸烟时前几口烟雾量较小，烟雾量不稳定，用户体验差。本发明的目的在于，针对上述现有技术的不足，提供一种超声雾化片工作控制电路及超声波电子烟，超声雾化片启动速度快，超声雾化片不会干烧或因工作电压过大而缩短寿命，烟雾量稳定，更加节能，用户体验好。
为解决上述技术问题，本发明所采用的技术方案是：
一种超声雾化片工作控制电路，包括电源模块、升压电路、抽烟开关、控制器、驱动电路和LC振荡电路，电源模块依次通过升压电路、驱动电路、LC振荡电路与超声雾化片电连接，抽烟开关与控制器的输入端电连接，控制器的输出端与升压电路的使能端电连接；其结构特点是还包括用于在抽烟开关相邻两次导通时刻之间的间隔时间大于预设时间时调高升压电路输送至驱动电路的电压值 的调压电路，升压电路的输出端通过该调压电路与驱动电路的输入端电连接，控制器的输出端与调压电路的控制端电连接。
借由上述结构，利用调压电路调整升压电路输出至驱动电路的电压，可以解决超声波电子烟因为功率不足导致在启动之初烟雾量小的问题。
当抽烟开关相邻两次导通时刻之间的间隔时间大于预设时间时，控制器控制调压电路工作，升压电路输出的电压通过调压电路调高，从而输出至驱动电路的电压提高，输出功率加大，从而调高了超声雾化片的工作电压，使超声雾化片启动速度快、出烟速度快，解决了超声波电子烟在抽吸每口烟雾时，由于抽吸每口烟雾的时间间隔比较长而产生烟雾量少、启动速度慢的问题。
当间隔时间不大于预设时间时，超声雾化片已经经过预热，只需要较小功率就可以产生较大的烟雾量。此时，控制器控制调压电路不工作，升压电路输出的电压直接输出至驱动电路，从而驱动电路的输入电压较低，驱动电路的输出功率降低，从而使得超声雾化片雾化出来的烟雾与刚启动时基本保持一致，烟雾量稳定，用户体验好；同时更加节能，超声雾化片不会干烧或因工作电压过大而缩短寿命。
作为一种优选方式，所述调压电路包括第一MOS管、第一电阻和第二电阻，升压电路的参考电平反馈端通过第三电阻接地，升压电路的电压输出端通过第四电阻与升压电路的参考电平反馈端电连接，第一MOS管的栅极和第二电阻的一端均与控制器的输出端电连接，第一MOS管的漏极通过第一电阻与升压电路的电压输出端电连接，第一MOS管的源极接在第三电阻与第四电阻之间，第二电阻的另一端接地。
借由上述结构，利用调压电路调整升压电路输出至驱动电路的电压，可以解决超声波电子烟因为功率不足导致在启动之初烟雾量小的问题。调压电路的工作原理如下：
由于升压电路参考电平反馈端输出的反馈电压参考值Vrf较小(接近零伏)，所以本发明对上电阻进行调节，上电阻为第四电阻或第一电阻与第四电阻并联后的总电阻，利用控制器I/O口输出电压和Vrf的压差是否大于第一MOS管的Vgs,从而驱动第一MOS管开关，使第一电阻与第四电阻并联调压、或者第四电阻单独调压。
当抽烟开关相邻两次导通时刻之间的间隔时间大于预设时间时，控制器输出低电平至第一MOS管的栅极，第一MOS管截止，第一电阻断开连接，由于第四电阻的阻值大于其与第一电阻并联的阻值，且取样电平Vrf不变，根据电压比等于电阻比的关系式得知升压电路输出至驱动电路的输出电压提高，输出功率加大，从而调高了超声雾化片的工作电压，使超声雾化片启动速度快、出烟速度快， 解决了超声波电子烟在抽吸每口烟雾时，由于抽吸每口烟雾的时间间隔比较长而产生烟雾量少、启动速度慢的问题。
当间隔时间不大于预设时间时，超声雾化片已经经过预热，只需要较小功率就可以产生较大的烟雾量。此时，控制器输出高电平至第一MOS管的栅极，第一MOS管导通，第一电阻与第四电阻并联，从而降低了上电阻阻值，根据电压比等于电阻比的关系式得知升压电路输出至驱动电路的输出电压降低，输出功率降低，从而使得超声雾化片雾化出来的烟雾与刚启动时基本保持一致，烟雾量稳定，用户体验好；同时更加节能，超声雾化片不会干烧或因工作电压过大而缩短寿命。
本发明所述电压调节方案适用于取样参考电平Vrf较低的升压电路，利用Vrf恒定的特点，设计MOS管电路去调节取样电阻的上电阻，用较简单的电路实现升压电路输出电压的动态调节。
进一步地，还包括接在升压电路电压输出端与驱动电路之间的第一滤波电路。
第一滤波电路用于滤除经升压电路升压后输出至驱动电路的电压信号的噪声。
进一步地，还包括接在升压电路输入端与电源模块之间的第二滤波电路。
第二滤波电路用于滤除电源模块输出至升压电路的电压信号的噪声。
作为一种优选方式，所述第一滤波电路包括第一电容、第二电容、第三电容、第四电容，第一电容、第二电容、第三电容、第四电容的一端均接在升压电路电压输出端与驱动电路之间，第一电容、第二电容、第三电容、第四电容的另一端均接地。
作为一种优选方式，所述第二滤波电路包括第五电容、第六电容，第五电容、第六电容的一端接在升压电路输入端与电源模块之间，第五电容、第六电容的另一端接地。
基于同一个发明构思，本发明还提供了一种超声波电子烟，其特征在于，包括所述的超声雾化片工作控制电路。
与现有技术相比，本发明中，超声雾化片启动速度快，超声雾化片不会干烧或因工作电压过大而缩短寿命，烟雾量稳定，更加节能，制作工艺简单，降低了使用成本，用户体验好。
附图说明
图1为现有超声雾化片工作控制电路方框图。
图2为本发明超声雾化片工作控制电路方框图。
图3为本发明升压电路和调压电路具体电路连接结构图。
其中，1为电源模块，2为升压电路，3为抽烟开关，4为控制器，5为LC振荡电路，6为调压电路，7为驱动电路，8为第一滤波电路，9为第二滤波电路，J为超声雾化片，Q1为第一MOS管，Q2为第二MOS管，R1为第一电阻，R2为第二电阻，R3为第三电阻，R4为第四电阻，R5为第五电阻，R6为第六电阻，R7为第七电阻，R8为第八电阻，R9为第九电阻，C1为第一电容，C2为第二电容，C3为第三电容，C4为第四电容，C5为第五电容，C6为第六电容，C7为第七电容，C8为第八电容，C9为第九电容，C10为第十电容，C11为第十一电容，C12为第十二电容，L为电感，U为升压芯片，D为二极管。
具体实施方式
如图2和图3所示，超声波电子烟中的超声雾化片工作控制电路包括电源模块1、升压电路2、抽烟开关3、控制器4、驱动电路7和LC振荡电路5，电源模块1依次通过升压电路2、驱动电路7、LC振荡电路5与超声雾化片J电连接，抽烟开关3与控制器4的输入端电连接，控制器4的输出端与升压电路2的使能端电连接；还包括用于在抽烟开关3相邻两次导通时刻之间的间隔时间(本实施例中为相邻两次按按键时刻之间的间隔时间)大于预设时间时调高升压电路2输送至驱动电路7的电压值的调压电路6，升压电路2的输出端通过该调压电路6与驱动电路7的输入端电连接，控制器4的输出端与调压电路6的控制端电连接。
如图3所示，所述调压电路6包括第一MOS管Q1、第一电阻R1和第二电阻R2，升压电路2的电压输出端与驱动电路7的输入端电连接，升压电路2的参考电平反馈端通过第三电阻R3接地，升压电路2的电压输出端通过第四电阻R4与升压电路2的参考电平反馈端电连接，第一MOS管Q1的栅极和第二电阻R2的一端均与控制器4的输出端电连接，第一MOS管Q1的漏极通过第一电阻R1与升压电路2的电压输出端电连接，第一MOS管Q1的源极接在第三电阻R3与第四电阻R4之间，第二电阻R2的另一端接地。
电源模块1由单节锂电池充放电路和保护电路组成，保护电路具有过充电和过压保护功能，同时防止后端电路过流及短路。升压电路2采用单节锂电池升压的方式，为后端高频LC振荡电路5提供大约30W功率的电源。
控制器4通过51内核单片机控制LED灯的指示及MOS管的开关来实现整个电路板的低功耗和安全保护，并且实时检测超声雾化片J的电压电流变化情况，防止超声雾化片J干烧及过载，同时也为后端驱动电路7提供PWM信号和通过功率检测实现实时追频。
本实施例中，LC振荡电路5采用高频他激式双边振荡电路。高频它激式双边振荡电路是通过MOS管的不断开关使电感和电容以及超声雾化片J本身的静 电容一起产生谐振，形成正弦波，从而有效的驱动超声雾化片J振荡，将烟油雾化。
驱动电路7通过驱动芯片对控制器4提供的两路PWM信号进行放大后，来分别驱动后端高频他激式双边振荡电路中的电感电容与超声雾化片J谐振，使超声雾化片J进行全波振荡，达到雾化效果。
超声雾化片工作控制电路还包括接在升压电路2电压输出端与驱动电路7之间的第一滤波电路8，用于滤除经升压电路2升压后输出的电压信号的噪声。所述第一滤波电路8包括第一电容C1、第二电容C2、第三电容C3、第四电容C4，第一电容C1、第二电容C2、第三电容C3、第四电容C4的一端均接在升压电路2电压输出端与驱动电路7之间，第一电容C1、第二电容C2、第三电容C3、第四电容C4的另一端均接地。
超声雾化片工作控制电路还包括接在升压电路2输入端与电源模块1之间的第二滤波电路9，用于滤除电源模块1输出至升压电路2的电压信号的噪声。所述第二滤波电路9包括第五电容C5、第六电容C6，第五电容C5、第六电容C6的一端接在升压电路2输入端与电源模块1之间，第五电容C5、第六电容C6的另一端接地。
所述升压电路2包括电感L、二极管D、升压芯片U、第二MOS管Q2、第五电阻R5、第六电阻R6、第七电阻R7、第八电阻R8、第九电阻R9、第七电容C7、第八电容C8、第九电容C9、第十电容C10、第十一电容C11和第十二电容C12，其中第二电阻R2的一端与升压芯片U的使能端相连，第二电阻R2的另一端与控制器4相连。其中，VIN为来自电源模块1的电压输出；EN1为来自控制器4的使能信号；VOLTAGE为来自控制器4的调压信号；VOUT为升压电路2输出至驱动电路7的电压信号。
本发明中，调压电路6的工作原理如下：
由于升压电路2参考电平反馈端输出的反馈电压参考值Vrf较小(接近零伏)，所以本发明对上电阻进行调节，上电阻为第四电阻R4或第一电阻R1与第四电阻R4并联后的总电阻，利用控制器4I/O口输出电压和Vrf的压差是否大于第一MOS管Q1的Vgs,从而驱动第一MOS管Q1开关，使第一电阻R1与第四电阻R4并联调压、或者第四电阻R4单独调压。
当抽烟开关3相邻两次导通时刻之间的间隔时间大于预设时间时，控制器4输出低电平至第一MOS管Q1的栅极，第一MOS管Q1截止，第一电阻R1断开连接，由于第四电阻R4的阻值大于其与第一电阻R1并联的阻值，且取样电平Vrf不变，根据电压比等于电阻比的关系式得知升压电路2输出至驱动电路7的输出电压提高，输出功率加大，从而调高了超声雾化片J的工作电压，使超声 雾化片J启动速度快、出烟速度快，解决了超声波电子烟在抽吸每口烟雾时，由于抽吸每口烟雾的时间间隔比较长而产生烟雾量少、启动速度慢的问题。
当间隔时间不大于预设时间时，超声雾化片J已经经过预热，只需要较小功率就可以产生较大的烟雾量。此时，控制器4输出高电平至第一MOS管Q1的栅极，第一MOS管Q1导通，第一电阻R1与第四电阻R4并联，从而降低了上电阻阻值，根据电压比等于电阻比的关系式得知升压电路2输出至驱动电路7的输出电压降低，输出功率降低，从而使得超声雾化片J雾化出来的烟雾与刚启动时基本保持一致，烟雾量稳定，用户体验好；同时更加节能，超声雾化片J不会干烧或因工作电压过大而缩短寿命。
本发明所述电压调节方案适用于取样参考电平Vrf较低的升压电路2，利用Vrf恒定的特点，设计MOS管电路去调节取样电阻的上电阻，用较简单的电路实现升压电路2输出电压的动态调节。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是局限性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本发明的保护范围之内。

Claims (7)

  1. 一种超声雾化片工作控制电路，包括电源模块(1)、升压电路(2)、抽烟开关(3)、控制器(4)、驱动电路(7)和LC振荡电路(5)，电源模块(1)依次通过升压电路(2)、驱动电路(7)、LC振荡电路(5)与超声雾化片(J)电连接，抽烟开关(3)与控制器(4)的输入端电连接，控制器(4)的输出端与升压电路(2)的使能端电连接；其特征在于，还包括用于在抽烟开关(3)相邻两次导通时刻之间的间隔时间大于预设时间时调高升压电路(2)输送至驱动电路(7)的电压值的调压电路(6)，升压电路(2)的输出端通过该调压电路(6)与驱动电路(7)的输入端电连接，控制器(4)的输出端与调压电路(6)的控制端电连接。
  2. 如权利要求1所述的超声雾化片工作控制电路，其特征在于，所述调压电路(6)包括第一MOS管(Q1)、第一电阻(R1)和第二电阻(R2)，升压电路(2)的参考电平反馈端通过第三电阻(R3)接地，升压电路(2)的电压输出端通过第四电阻(R4)与升压电路(2)的参考电平反馈端电连接，第一MOS管(Q1)的栅极和第二电阻(R2)的一端均与控制器(4)的输出端电连接，第一MOS管(Q1)的漏极通过第一电阻(R1)与升压电路(2)的电压输出端电连接，第一MOS管(Q1)的源极接在第三电阻(R3)与第四电阻(R4)之间，第二电阻(R2)的另一端接地。
  3. 如权利要求1所述的超声雾化片工作控制电路，其特征在于，还包括接在升压电路(2)电压输出端与驱动电路(7)之间的第一滤波电路(8)。
  4. 如权利要求1所述的超声雾化片工作控制电路，其特征在于，还包括接在升压电路(2)输入端与电源模块(1)之间的第二滤波电路(9)。
  5. 如权利要求3所述的超声雾化片工作控制电路，其特征在于，所述第一滤波电路(8)包括第一电容(C1)、第二电容(C2)、第三电容(C3)、第四电容(C4)，第一电容(C1)、第二电容(C2)、第三电容(C3)、第四电容(C4)的一端均接在升压电路(2)电压输出端与驱动电路(7)之间，第一电容(C1)、第二电容(C2)、第三电容(C3)、第四电容(C4)的另一端均接地。
  6. 如权利要求4所述的超声雾化片工作控制电路，其特征在于，所述第二滤波电路(9)包括第五电容(C5)、第六电容(C6)，第五电容(C5)、第六电容(C6)的一端接在升压电路(2)输入端与电源模块(1)之间，第五电容(C5)、第六电容(C6)的另一端接地。
  7. 一种超声波电子烟，其特征在于，包括如权利要求1至6任一项所述的超声雾化片工作控制电路。
PCT/CN2019/090913 2018-06-14 2019-06-12 一种超声雾化片工作控制电路及超声波电子烟 WO2019238064A1 (zh)

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US11700882B2 (en) 2019-12-15 2023-07-18 Shaheen Innovations Holding Limited Hookah device
US11878112B2 (en) 2019-12-15 2024-01-23 Shaheen Innovations Holding Limited Mist inhaler devices
US11944120B2 (en) 2019-12-15 2024-04-02 Shaheen Innovations Holding Limited Ultrasonic mist inhaler with capillary retainer
US11944121B2 (en) 2019-12-15 2024-04-02 Shaheen Innovations Holding Limited Ultrasonic mist inhaler with capillary element
KR20220138405A (ko) * 2019-12-15 2022-10-12 샤힌 이노베이션즈 홀딩 리미티드 물담배 장치
US11911559B2 (en) 2019-12-15 2024-02-27 Shaheen Innovations Holding Limited Ultrasonic mist inhaler
US11666713B2 (en) 2019-12-15 2023-06-06 Shaheen Innovations Holding Limited Mist inhaler devices
US11672928B2 (en) 2019-12-15 2023-06-13 Shaheen Innovations Holding Limited Mist inhaler devices
US11571022B2 (en) 2019-12-15 2023-02-07 Shaheen Innovations Holding Limited Nicotine delivery device
US11832646B2 (en) 2019-12-15 2023-12-05 Shaheen Innovations Holding Limited Nicotine delivery device with identification arrangement
US11589610B2 (en) 2019-12-15 2023-02-28 Shaheen Innovations Holding Limited Nicotine delivery device having a mist generator device and a driver device
US11602165B2 (en) 2019-12-15 2023-03-14 Shaheen Innovations Holding Limited Nicotine delivery device having a mist generator device and a driver device
US11819054B2 (en) 2019-12-15 2023-11-21 Shaheen Innovations Holding Limited Nicotine delivery device with airflow arrangement
US11819607B2 (en) 2019-12-15 2023-11-21 Shaheen Innovations Holding Limited Mist inhaler devices
US11785985B2 (en) 2019-12-15 2023-10-17 Shaheen Innovations Holding Limited Hookah device
KR102576901B1 (ko) * 2019-12-15 2023-09-13 샤힌 이노베이션즈 홀딩 리미티드 물담배 장치
US11660406B2 (en) 2019-12-15 2023-05-30 Shaheen Innovations Holding Limited Mist inhaler devices
US11744963B2 (en) 2019-12-15 2023-09-05 Shaheen Innovations Holding Limited Mist inhaler devices
US11730191B2 (en) 2019-12-15 2023-08-22 Shaheen Innovations Holding Limited Hookah device
US11730899B2 (en) 2019-12-15 2023-08-22 Shaheen Innovations Holding Limited Mist inhaler devices
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KR102634333B1 (ko) 2020-04-06 2024-02-07 샤힌 이노베이션즈 홀딩 리미티드 니코틴 전달장치
KR20220138406A (ko) * 2020-04-06 2022-10-12 샤힌 이노베이션즈 홀딩 리미티드 미스트 흡입장치
KR102535652B1 (ko) 2020-04-06 2023-05-30 샤힌 이노베이션즈 홀딩 리미티드 미스트 흡입장치
JP2023502157A (ja) * 2020-04-06 2023-01-20 シャヒーン イノベーションズ ホールディング リミテッド ニコチンデリバリー装置
KR20230060539A (ko) * 2020-04-06 2023-05-04 샤힌 이노베이션즈 홀딩 리미티드 니코틴 전달장치
KR102576418B1 (ko) * 2020-04-06 2023-09-12 샤힌 이노베이션즈 홀딩 리미티드 물담배 장치
KR20220138404A (ko) * 2020-04-06 2022-10-12 샤힌 이노베이션즈 홀딩 리미티드 물담배 장치
AU2021398578B2 (en) * 2020-04-06 2023-02-23 Shaheen Innovations Holding Limited A hookah device
JP7245396B2 (ja) 2020-04-06 2023-03-23 シャヒーン イノベーションズ ホールディング リミテッド ニコチンデリバリー装置
KR102525377B1 (ko) 2020-04-06 2023-04-26 샤힌 이노베이션즈 홀딩 리미티드 니코틴 전달장치
KR20220134032A (ko) * 2020-04-06 2022-10-05 샤힌 이노베이션즈 홀딩 리미티드 니코틴 전달장치
JP2023502155A (ja) * 2020-04-06 2023-01-20 シャヒーン イノベーションズ ホールディング リミテッド 水タバコ装置
JP7313567B2 (ja) 2020-04-06 2023-07-24 シャヒーン イノベーションズ ホールディング リミテッド 水タバコ装置
WO2022129911A1 (en) * 2020-12-15 2022-06-23 Shaheen Innovations Holding Limited A hookah device
WO2022129906A1 (en) * 2020-12-15 2022-06-23 Shaheen Innovations Holding Limited A nicotine delivery device
JP7459281B2 (ja) 2021-03-25 2024-04-01 ケーティー アンド ジー コーポレイション エアロゾル生成装置及びその動作方法
US11665483B1 (en) 2021-12-15 2023-05-30 Shaheen Innovations Holding Limited Apparatus for transmitting ultrasonic waves

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