CN204969478U - Electronic cigarette - Google Patents

Electronic cigarette Download PDF

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Publication number
CN204969478U
CN204969478U CN201520733724.7U CN201520733724U CN204969478U CN 204969478 U CN204969478 U CN 204969478U CN 201520733724 U CN201520733724 U CN 201520733724U CN 204969478 U CN204969478 U CN 204969478U
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CN
China
Prior art keywords
microprocessor
signal
module
voltage
divider resistance
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CN201520733724.7U
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Chinese (zh)
Inventor
朱伟
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深圳瀚星翔科技有限公司
宏图东方科技(深圳)有限公司
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Priority to CN201520733724.7U priority Critical patent/CN204969478U/en
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Publication of CN204969478U publication Critical patent/CN204969478U/en

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Abstract

The utility model discloses an electronic cigarette, including the battery and with the battery is connected is used for the cigarette oil foggers that atomizes, is equipped with the tobacco tar chamber that is used for holding the tobacco tar in the atomizer, electronic cigarette still includes the control assembly who is connected with the battery, control assembly include the microprocessor control module and respectively with tobacco tar detection module, warning module that the microprocessor control module is connected, tobacco tar detection module includes piezoelectric patches Y1 and piezoelectric patches detection circuitry, the piezoelectric patches Y1 be located in the tobacco tar of tobacco tar intracavity, the microprocessor U1 that piezoelectric patches detection circuitry is used for detecting the voltage signal on the piezoelectric patches Y1 and feeds back the microprocessor control module, microprocessor U1 is used for rightly the voltage signal of piezoelectric patches detection circuitry output detects and carries out the AD conversion, converts the voltage signal who detects the content of tobacco tar in the corresponding atomizer into, and passes through the output of warning module.

Description

A kind of electronic cigarette

Technical field

The utility model relates to electronic product, particularly relates to a kind of electronic cigarette.

Background technology

At present, the method that electronic cigarette detects tobacco tar amount mainly contains two kinds, one is that user is when smoking, discovery is taken out not smoke, is had burnt flavor etc., thus judge that tobacco tar oil mass is little, but now there is dry combustion method phenomenon, atomizer Yin Wendu is too high and send gas harmful, the healthy of user can be affected.Another kind of mode observes tobacco tar content by the visual windows of atomizer, but be limited in scope due to visual windows, when tobacco tar is less, intuitive judgment can not go out tobacco tar amount now.

Utility model content

In view of this, be necessary to provide a kind of electronic cigarette understanding the situation of tobacco tar amount in time in fact.

A kind of electronic cigarette, include battery and be connected with described battery for atomizing cigarette oil foggers, the tobacco tar chamber for holding tobacco tar is provided with in atomizer, described electronic cigarette also comprises the Control Component be connected with battery, the tobacco tar detection module that Control Component comprises microprocessor control module and is connected with described microprocessor control module respectively, prompting module, described tobacco tar detection module comprises piezoelectric patches Y1 and piezoelectric patches testing circuit, described piezoelectric patches Y1 is arranged in the tobacco tar in described tobacco tar chamber, described piezoelectric patches testing circuit is for the voltage signal that detects on piezoelectric patches Y1 and feed back to the microprocessor U1 of microprocessor control module, the voltage signal that described microprocessor U1 is used for described piezoelectric patches testing circuit exports detects and carries out A/D conversion, the voltage signal detected is converted to the content of tobacco tar in corresponding atomizer, and exported by described prompting module.

Further, described piezoelectric patches testing circuit also comprises the filter capacitor C13 in parallel with piezoelectric patches Y1.

Further, described prompting module is OLED, LED or buzzer.

Further, described electronic cigarette also comprises the boost module be connected with described microprocessor U1, battery, prompting module, described boost module comprises boost chip U4, dividing potential drop vibration inductance L 2 is connected with between its voltage input end and voltage output end, this voltage input end is also connected with anode, this voltage output end is also connected with the anode of a diode D1, and the negative electrode of this diode D1 is electrically connected with one end of the first divider resistance R24, the other end of the first divider resistance R24 is by the second divider resistance R25 ground connection; First divider resistance R24 is connected with the pressure feedback port end of described boost chip U4 with the tie point of the second divider resistance R25, the GND of described boost chip U4 holds direct ground connection, and the enable input of this boost chip U4 is connected with the enable signal control end of microprocessor U1.

Further, described electronic cigarette also comprises the load output control module be connected with described microprocessor U1, battery, described load output control module comprises the first switching tube Q1, the voltage output end ground connection of the first switching tube Q1, the signal control end of the first switching tube Q1 is connected with the signal control end of described microprocessor U1 by a current-limiting resistance R16, and the voltage input end of this first switching tube Q1 is connected with anode through chokes boost inductance L1;

The tie point voltage input end of described first switching tube Q1 is connected with the anode of a diode D2, an afterflow electric capacity C8 is connected with between the negative electrode of diode D2 and ground, 3rd divider resistance R17 is connected with the negative electrode of diode D2 and ground after connecting with the 3rd divider resistance R18 respectively, and the 3rd divider resistance R17 is connected with the voltage signal detection port of described microprocessor U1 with the tie point of the 4th divider resistance R18;

Described load output control module also comprises one the 3rd switching tube Q3, the voltage output end ground connection of the 3rd switching tube Q3, the control end of the 3rd switching tube Q3 is connected with another signal control end of described microprocessor U1 by one first current-limiting resistance R20, and this tie point is by pull down resistor R21 ground connection; The voltage input end of the 3rd switching tube Q3 is connected with the control end of a second switch pipe Q2, the voltage input end of the 3rd switching tube Q3 is also connected with the voltage input end of described second switch pipe Q2 by one second current-limiting resistance R19, and the voltage output end of described second switch pipe Q2 is connected with load output cathode;

Described load output control module also comprises current sampling resistor R23, this current sampling resistor R23 one end is electrically connected with described load, the other end ground connection of current sampling resistor R23, described load is connected with the current signal test side of described microprocessor U1 with the tie point of current sampling resistor R23.

Further, described electronic cigarette also comprises the cell charge protection module be connected with described microprocessor U1, described cell charge protection module prevents overcharge for the protection of battery, described cell charge protection module comprises charging inlet J1, power management chip U3, the power connector end of power management chip U3 is connected with anode, the charging current of power management chip U3 is arranged, monitoring and the pass broken ends of fractured bone are by a current-limiting resistance R15 ground connection, the GND of power management chip U3 holds direct ground connection, the battery of power management chip U3 has been full of the FULL signal detection port of the described microprocessor U1 of end connection, the voltage input end end of power management chip U3 is connected with enable input and the tie point of the two passes through the two current-limiting resistance R14 connected, current-limiting resistance R13 is connected with the positive terminal of described charging inlet J1, the negative terminal of described charging inlet J1 is connected to ground, the positive pole of described charging inlet J1, the 5th divider resistance R11 of two series connection is also connected in parallel between negative terminal, 6th divider resistance R12, 5th divider resistance R11, the tie point of the 6th divider resistance R12 is connected with the INT0 signal detection port of described microprocessor U1, wherein, INT0 signal is charging input wake-up signal, FULL signal is for being full of the signal of telecommunication, microprocessor U1 is according to the INT0 signal detected, whether the value of FULL signal is come has input and whether is full of electricity in decision circuitry.

Further; described cell charge protection module also comprises for indicating charging input wake-up signal and the indicator lamp LED1, the indicator lamp LED2 that are full of the signal of telecommunication respectively; described indicator lamp LED1, indicator lamp LED2 are parallel with one another; the two anode is connected with anode by a pull-up resistor R26, and negative electrode is connected with the LED signal control port of microprocessor U1.

Further, described electronic cigarette also comprises the battery voltage sensing module for preventing battery over-discharge, described cell voltage and detection module comprise two the 7th divider resistance R9 connected, 8th divider resistance R10, 7th divider resistance R9, the tie point of the 8th divider resistance R10 is connected with a detection port of microprocessor U1, the other end of the 7th divider resistance R9 is connected with described anode, and the other end of the 8th divider resistance R10 is connected with another detection port of microprocessor U1, described microprocessor U1 calculates described cell voltage according to the voltage sample situation of described two detection port.

Further, described electronic cigarette also comprises switch module, and described switch module comprises key switch K1, and one end of key switch K1 connects anode by pull-up resistor R27, other end ground connection, pull-up resistor R27 is connected the switching signal test side of microprocessor U1 with the tie point of key switch K1.

Technique scheme at least has following beneficial effect: the utility model utilizes piezoelectric patches Y1 can produce the characteristic of voltage to design testing circuit when applying pressure.Piezoelectric patches Y1 is arranged in the tobacco tar in described tobacco tar chamber, described piezoelectric patches testing circuit is for the voltage signal that detects on piezoelectric patches Y1 and feed back to the microprocessor U1 of microprocessor control module, the voltage signal that described microprocessor U1 is used for described piezoelectric patches testing circuit exports detects and carries out A/D conversion, the voltage signal detected is converted to the content of tobacco tar in corresponding atomizer, and is exported by prompting module.So, just can tobacco tar amount in time in feedback electronic tobacco atomizer, prevent ' dry combustion method ' and produce harmful gas, making electronic cigarette product safer, healthy.

Accompanying drawing explanation

Fig. 1 is the structural representation of the electronic cigarette of a better embodiment.

Fig. 2 is the functional block diagram of the Control Component of a better embodiment.

Fig. 3 is the microprocessor control module of a better embodiment and the circuit theory diagrams of voltage detection module.

Fig. 4 is the circuit theory diagrams of the tobacco tar detection module of a better embodiment.

Fig. 5 is the circuit theory diagrams of the prompting module of a better embodiment.

Fig. 6 is the circuit theory diagrams of the boost module of a better embodiment.

Fig. 7 is the circuit theory diagrams of the load output control module of a better embodiment.

Fig. 8 is the partial circuit schematic diagram of the battery charging management module of a better embodiment.

Fig. 9 is the indicator lamp partial circuit schematic diagram of the battery charging management module of a better embodiment and the circuit theory diagrams of switch module.

Detailed description of the invention

It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below in conjunction with accompanying drawing, the utility model is described further.

Please refer to Fig. 1 and Fig. 2, electronic cigarette 1 comprises the battery 10 be arranged on for powering in electronic cigarette 1, for the atomizer 20 that tobacco tar is atomized, the tobacco tar chamber 21 for holding tobacco tar is provided with in atomizer 20, described electronic cigarette also comprises the Control Component 30 be connected with battery 10, tobacco tar detection module 32, prompting module 33, boost module 34, load output control module 35, battery charging management module 36, battery voltage sensing module 37, switch module 38 that Control Component 30 comprises microprocessor control module 31 and is connected with described microprocessor control module 31 respectively.

Incorporated by reference to Fig. 1, Fig. 3, Fig. 4, tobacco tar detection module 32 comprises piezoelectric patches Y1 and testing circuit.The utility model utilizes piezoelectric patches Y1 can produce the characteristic of voltage to design testing circuit when applying pressure.Piezoelectric patches Y1 is arranged in the tobacco tar in described tobacco tar chamber, described piezoelectric patches testing circuit is for the voltage signal that detects on piezoelectric patches Y1 and feed back to the microprocessor U1 of microprocessor control module 31, the voltage signal that described microprocessor U1 is used for described piezoelectric patches testing circuit exports detects and carries out A/D conversion, the voltage signal detected is converted to the content of tobacco tar in corresponding atomizer, and is exported by prompting module 33.So, just can tobacco tar amount in time in feedback electronic tobacco atomizer, prevent ' dry combustion method ' and produce harmful gas, making electronic cigarette product safer, healthy.

Preferably, microprocessor U1 can be the single-chip microcomputer that STM8L151, HT46R066 etc. are conventional, and this description is for STM8L151.Described prompting module 33 is OLED, LED or buzzer.Described piezoelectric patches testing circuit is used for one end of piezoelectric patches Y1 to be connected with the B-V signal detection port of described microprocessor U1, and the other end is connected to ground, and piezoelectric patches Y1 two ends are also parallel with a filter capacitor C13.The change of tobacco tar amount can affect the tobacco tar gravity be subject to of piezoelectric patches Y1, thus affect the voltage of piezoelectric patches generation, this voltage feeds back to microprocessor U1 by the B-V signal detection port of microprocessor U1, and filter capacitor C13 energy filtering ripple, improves the accuracy of voltage measurement.Then, microprocessor U1 carries out A/D conversion to the voltage signal detected, the voltage signal detected is converted to the content of tobacco tar in corresponding atomizer and is shown by prompting module 33.In this embodiment, user intuitively recognizes tobacco tar amount by prompting module 33, very easy to use.In addition, user can also preset a tobacco tar amount, when the tobacco tar amount in tobacco tar chamber is less than or equal to this preset value by microprocessor U1, prompting module 33 can send information warning, such as, notifies that user should add tobacco tar immediately, or stop powering to described atomizer, to avoid damaging atomizer.Design like this can better meet the individual demand of consumer to product.

In certain embodiments, as shown in Figure 5, prompting module 33 is OLED display module, comprise OLED display screen, this OLED display screen has eight pins, its first pin is connected with anode B+, 8th pin is connected to ground, second pin is connected to the divider resistance R4 of two series connection, the tie point of divider resistance R5, the other end of described divider resistance R4 is connected to ground, the other end of described divider resistance R5 is connected with a 12V power supply, and so, the voltage of divider resistance R4 is the starting resistor for OLED display screen provides.3rd pin of OLED display screen is connected to ground by a filter capacitor C3, 4th pin is connected to ground by a current-limiting resistance R6, for regulating the brightness of OLED screen, 5th pin is connected with SDA signal (digital and analogue signals) control port of described microprocessor U1, and be connected with anode B+ by a pull-up resistor R7, 6th pin is connected with SCL signal (clock signal) control port of described microprocessor U1, and be connected with anode B+ by a pull-up resistor R8, pull-up resistor R7, pull-up resistor R8 is respectively digital and analogue signals and clock signal provides necessary upper pull-up voltage.7th pin of OLED display screen is connected with RST-oled signal (reset signal) control port of described microprocessor U1, and described microprocessor U1 can control the duty of OLED display module.

Electronic cigarette 1 also comprises the boost module 34 for prompting module 33 power supply, and described supply module 34 comprises boost chip U4, and it can be MT3608, CP2121 etc., and the present embodiment selects MT3608.As shown in Figure 6, Vin end (voltage input end) of boost chip U4 and SW holds and to be connected with dividing potential drop between (voltage output end) and to vibrate inductance L 2, this Vin end is also connected with anode B+, this SW end is also connected with the anode of a diode D1, and the negative electrode of this diode D1 is electrically connected with one end of the first divider resistance R24, the other end of the first divider resistance R24 is by the second divider resistance R25 ground connection; First divider resistance R24 holds (pressure feedback port) to be connected with the tie point of the second divider resistance R25 with the FB of described boost chip U4, the GND of described boost chip U4 holds direct ground connection, and the enable input (EN1 end) of this boost chip U4 is connected with EN0 signal (enable signal) control end of microprocessor U1.

This module work principle is as follows: battery is powered to boost chip U4, and the EN0 signal control end output enable signal EN0 of microprocessor U1 is to control the duty (start or stop) of boost chip U4.After boost chip U4 starts, dividing potential drop vibration inductance L 2 can be boosted by chokes, and the magnitude of voltage that the FB end of this boost chip U4 can detect according to feedback adjusts output voltage, and to make output voltage meet the requirements of 12V, and diode D1 can prevent electric current reverse.Preferably, between anode B+ and ground, be also connected with a filter capacitor C11, and the output of supply module is also connected with a filter capacitor C12.

The load output control module 35 of this electronic cigarette 1 for Voltage Cortrol that battery is provided to the voltage needed for load; and by feeding back the duty of this load output control module 35 so that this microprocessor U1 turns off output circuit in time to described microprocessor U1, realizing circuit is protected.

In certain embodiments, as shown in Figure 7, described load output control module 35 comprises the first switching tube Q1, the voltage output end ground connection of the first switching tube Q1, the signal control end of the first switching tube Q1 is connected with the signal control end of described microprocessor U1 by a current-limiting resistance R16, and the voltage input end of this first switching tube Q1 is connected with anode B+ through chokes boost inductance L1; The tie point voltage input end of described first switching tube Q1 is connected with the anode of a diode D2, an afterflow electric capacity C8 is connected with between the negative electrode of diode D2 and ground, 3rd divider resistance R17 is connected with the negative electrode of diode D2 and ground after connecting with the 4th divider resistance R18 respectively, and the 3rd divider resistance R17 is connected with the voltage signal detection port of described microprocessor U1 with the tie point of the 4th divider resistance R18; Described load output control module also comprises one the 3rd switching tube Q3, the voltage output end ground connection of the 3rd switching tube Q3, the control end of the 3rd switching tube Q3 is connected with another signal control end of described microprocessor U1 by one first current-limiting resistance R20, and this tie point is by pull down resistor R21 ground connection; The voltage input end of the 3rd switching tube Q3 is connected with the control end of a second switch pipe Q2, the voltage input end of the 3rd switching tube Q3 is also connected with the voltage input end of described second switch pipe Q2 by one second current-limiting resistance R19, and the voltage output end of described second switch pipe Q2 is connected with load output cathode; Described load output control module also comprises current sampling resistor R23, this current sampling resistor R23 one end is electrically connected with described load, the other end ground connection of current sampling resistor R23, described load is connected with the current signal test side of described microprocessor U1 with the tie point of current sampling resistor R23.

Preferably, first switching tube Q1 is the switch MOS pipe of N-type, its source ground, grid is connected with the PWM2 signal control end of described microprocessor U1 by a current-limiting resistance R16, the drain electrode of this first switching tube Q1 is connected with anode B+ through chokes boost inductance L1, and the PWM2 signal control end of described microprocessor U1 produces pwm signal to control the break-make of this first switching tube Q1.The drain electrode of described first switching tube Q1 and the tie point of chokes boost inductance L1 are also connected for the anode of the diode D2 preventing electric current back with one, are connected with an afterflow electric capacity C8 between the negative electrode of diode D2 and ground.This diode D2 is preferably Schottky diode, and its forward voltage drop is low, reduces energy loss.This afterflow electric capacity C8 is also parallel with divider resistance R17, the divider resistance R18 of two series connection, the tie point of divider resistance R17, divider resistance R18 is connected with the AD1 signal detection port of described microprocessor U1, the other end of described divider resistance R18 is connected to ground, and described microprocessor U1 calculates circuit voltage according to the situation of the magnitude of voltage of AD1 signal feedback and divider resistance R17, divider resistance R18.The switch Q3 of described load output control module 35 is the switch triode of N-type, its grounded emitter, its base stage is connected with the PWM0 signal control end of described microprocessor U1 by one first current-limiting resistance R20, its colelctor electrode is directly connected with the grid of second switch pipe Q2, second switch pipe Q2 is P type metal-oxide-semiconductor, the colelctor electrode of the 3rd switching tube Q3 is also connected with the source electrode of this second switch pipe Q2 by one second current-limiting resistance R19, the drain electrode of this second switch pipe Q2 is connected with load output cathode, described microprocessor U1 controls second switch pipe Q2 by the pwm signal that PWM0 signal control end exports, the break-make of switch Q3.Described load output control module 35 also comprises the current sampling resistor R23 of one and described load in series, the other end ground connection of current sampling resistor R23, described load is connected with the Iout-AD signal detection end of described microprocessor U1 with the tie point of current sampling resistor R23, and described microprocessor U1 calculates load current according to the magnitude of voltage situation of Iout-AD signal feedback.

Preferably, anode B+ is also connected with a filter capacitor C7 over the ground.A divider resistance R18 filter capacitor C9 in parallel.

Preferably, the tie point of the PWM0 signal control end of the first current-limiting resistance R20 and microprocessor U1 is also connected with a pull down resistor R21, pull down resistor R21 other end ground connection, is subject to radiation interference with the pwm signal preventing the PWM0 signal control end of microprocessor U1 from exporting.

Preferably, the tie point of described load and current sampling resistor R23 is also connected with a resistance R22, one end one electric capacity C10 of current sampling resistor R23 ground connection and being connected with the other end of resistance R22, so, resistance R22 and electric capacity C10 constitutes RC filter circuit, acquired magnitude of voltage feeds back in microprocessor U1 again by current sampling resistor R23 after this RC filter circuit filtering, to improve the accuracy of detected value, microprocessor U1 calculates load current according to the voltage condition detected, then carries out Current Control to this load output control module 35.

Load output control module 35 operation principle is as follows:

First microprocessor U1 learns the duty of load according to the load voltage situation of AD1 signal feedback and the load current condition of Iout-AD signal feedback;

When the load required voltage detected is higher than cell voltage, the pwm signal of the PWM2 signal control end output of microprocessor U1 controls the break-make of the first switching tube Q1, chokes boost inductance L1 chokes boost, when microprocessor U1 according to the voltage signal of AD1 signal feedback calculate the magnitude of voltage after boosting meet the demand of load time, PWM0 signal conduction the 3rd switching tube Q3 that microprocessor U1 exports and second switch pipe Q2, thus powering load;

When load required voltage being detected lower than cell voltage, the pwm signal that the PWM2 signal control end of microprocessor U1 exports is low level, close the first switching tube Q1, the pwm signal of the PWM0 signal control end output of microprocessor U1 controls the switch of the 3rd switching tube Q3 and second switch pipe Q2, thus the voltage of the output of chokes boost inductance L1 is reduced, when microprocessor U1 according to the voltage signal of AD1 signal feedback calculate the magnitude of voltage after step-down meet the demand of load time, then powering load.

Microprocessor U1 also can according to state load output control module 35 feed back AD1, Iout-AD signal judging circuit in whether there is the situations such as overcurrent, short circuit, open circuit so that microprocessor U1 turns off output circuit in time, realizing circuit protect

As shown in Figure 8; the battery charging management module 36 of this electronic cigarette 1 prevents overcharge for the protection of battery; comprise charging inlet J1 (being preferably MICROUSB interface), power management chip U3; described power management chip U3 can be TP4056; its inside is integrated with charging overvoltage protection; overcurrent protection, charged state/full power state display, the functions such as charging overheat protector.BAT end (power connector end) of power management chip U3 is connected with anode B+, (charging current is arranged the PROG end of power management chip U3, monitoring and the pass broken ends of fractured bone) by a current-limiting resistance R15 ground connection, the GND of power management chip U3 holds direct ground connection, the STDBY of power management chip U3 holds (battery has been full of end) mouth to connect the FULL signal detection port of described microprocessor U1, Vcc (voltage input end) end of power management chip U3 is connected with CE end (enable input) and the tie point of the two passes through the two current-limiting resistance R14 connected, current-limiting resistance R13 is connected with the positive terminal of described charging inlet J1, the negative terminal of described charging inlet J1 is connected to ground, the positive pole of described charging inlet J1, the 5th divider resistance R11 of two series connection is also connected in parallel between negative terminal, 6th divider resistance R12, 5th divider resistance R11, the tie point of the 6th divider resistance R12 is connected with the INT0 signal detection port of described microprocessor U1.

Wherein, INT0 signal is charging input wake-up signal, and FULL signal is for being full of the signal of telecommunication, and microprocessor U1 comes whether have input in decision circuitry and whether be full of electricity according to the value of the INT0 signal detected, FULL signal.

Preferably, the output of charging inlet J1 is parallel with filter capacitor C5, and the output of this cell charge protection module is also connected with filter capacitor C6 between anode B+ and ground.

Preferably; described cell charge protection module also comprises for indicating charging input wake-up signal and the indicator lamp LED1, the indicator lamp LED2 that are full of the signal of telecommunication respectively; indicator lamp LED1, indicator lamp LED2 are parallel with one another; the two anode is connected with anode B+ by a pull-up resistor R26, and negative electrode is connected with the LED signal control port of microprocessor U1.

Battery charging management module 36 operation principle is as follows: external power source inputs from charging inlet J1, after electric capacity C5 filtering, current-limiting resistance R13, current-limiting resistance R14 current limliting, flow into the input pin Vin of charging management chip U3 and enable pin CE, and after through charging management chip U3 linear-charging management after be input to battery; 5th divider resistance R11, the 6th divider resistance R12 will be input to the INT0 signal detection port of microprocessor U1 after input voltage dividing potential drop, to input wake-up signal as charging, now microprocessor U1 can light by control LED1; When battery is full of electricity, the STDBY pin voltage of charging management chip U3 is dragged down by charging management chip U3, be close to 0V, thus make FULL signal become low level using as being full of the signal of telecommunication from high level, can light by control LED2 after microprocessor U1 detects this signal.

The battery voltage sensing module 37 of electronic cigarette 1 is for detecting battery voltage value, and for preventing battery over-discharge, when the cell voltage detected is lower than predeterminated voltage, control circuit stops load supplying by microprocessor U1.As shown in Figure 3, described battery voltage sensing module 37 comprises the 7th divider resistance R9, the 8th divider resistance R10 of two series connection, the tie point of the 7th divider resistance R9, the 8th divider resistance R10 is connected with the detection port PB6 of microprocessor U1, the other end of the 7th divider resistance R9 is connected with described anode B+, the other end of the 8th divider resistance R10 is connected with the detection port PB5 of microprocessor U1, and described microprocessor U1 calculates described cell voltage according to the voltage sample situation of described two detection port.

Electronic cigarette 1 also comprises switch module 38, as shown in Figure 9, described switch module 38 comprises key switch K1, one end of key switch K1 connects anode B+ by pull-up resistor R27, other end ground connection, and pull-up resistor R27 is connected the KEY1 signal detection end of microprocessor U1 with the tie point of key switch K1, key switch K1 is preferably touch-switch or airflow sensor switch, after pressing this case switch, microprocessor U1 detects KEY1 signal (switching signal), thus starts smoking function.

In addition, for microprocessor U1, need reference voltage as reference when sampling, feedback, therefore for the microprocessor U1 that inside does not contain reference voltage, also need a reference voltage unit.As shown in Figure 3, reference voltage unit comprises a benchmark voltage stabilizing chip U2, be preferably controllable accurate source of stable pressure TL431, its negative electrode is connected with anode B+ by a current-limiting resistance R3, its anode connects a control port PB3 of microprocessor U1, and it accesses a control port PD0 of microprocessor U1 after being connected with negative electrode with reference to pole, it is also connected to a filter capacitor C2 with reference between pole and anode, so, reference voltage unit can provide the reference voltage of a 2.5V for microprocessor U1.

The above is detailed description of the invention of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some amendments, these amendments are also considered as protection domain of the present utility model.

Claims (9)

1. an electronic cigarette, include battery and be connected with described battery for atomizing cigarette oil foggers, the tobacco tar chamber for holding tobacco tar is provided with in atomizer, it is characterized in that, described electronic cigarette also comprises the Control Component be connected with battery, the tobacco tar detection module that Control Component comprises microprocessor control module and is connected with described microprocessor control module respectively, prompting module, described tobacco tar detection module comprises piezoelectric patches Y1 and piezoelectric patches testing circuit, described piezoelectric patches Y1 is arranged in the tobacco tar in described tobacco tar chamber, described piezoelectric patches testing circuit is for the voltage signal that detects on piezoelectric patches Y1 and feed back to the microprocessor U1 of microprocessor control module, the voltage signal that described microprocessor U1 is used for described piezoelectric patches testing circuit exports detects and carries out A/D conversion, the voltage signal detected is converted to the content of tobacco tar in corresponding atomizer, and exported by described prompting module.
2. electronic cigarette as claimed in claim 1, it is characterized in that, described piezoelectric patches testing circuit also comprises the filter capacitor C13 in parallel with piezoelectric patches Y1.
3. electronic cigarette as claimed in claim 1, it is characterized in that, described prompting module is OLED, LED or buzzer.
4. electronic cigarette as claimed in claim 1, it is characterized in that, described electronic cigarette also comprises and described microprocessor U1, battery, the boost module that prompting module connects, described boost module comprises boost chip U4, be connected with dividing potential drop between boost chip U4 voltage input end and voltage output end to vibrate inductance L 2, this voltage input end is also connected with anode, this voltage output end is also connected with the anode of a diode D1, and the negative electrode of this diode D1 is electrically connected with one end of the first divider resistance R24, the other end of the first divider resistance R24 is by the second divider resistance R25 ground connection, first divider resistance R24 is connected with the pressure feedback port end of described boost chip U4 with the tie point of the second divider resistance R25, the GND of described boost chip U4 holds direct ground connection, and the enable input of this boost chip U4 is connected with the enable signal control end of microprocessor U1.
5. electronic cigarette as claimed in claim 1, it is characterized in that, described electronic cigarette also comprises the load output control module be connected with described microprocessor U1, battery respectively, described load output control module comprises the first switching tube Q1, the voltage output end ground connection of the first switching tube Q1, the signal control end of the first switching tube Q1 is connected with the signal control end of described microprocessor U1 by a current-limiting resistance R16, and the voltage input end of this first switching tube Q1 is connected with anode through chokes boost inductance L1;
The tie point voltage input end of described first switching tube Q1 is connected with the anode of a diode D2, an afterflow electric capacity C8 is connected with between the negative electrode of diode D2 and ground, 3rd divider resistance R17 is connected with the negative electrode of diode D2 and ground after connecting with the 4th divider resistance R18 respectively, and the 3rd divider resistance R17 is connected with the voltage signal detection port of described microprocessor U1 with the tie point of the 4th divider resistance R18;
Described load output control module also comprises one the 3rd switching tube Q3, the voltage output end ground connection of the 3rd switching tube Q3, the control end of the 3rd switching tube Q3 is connected with another signal control end of described microprocessor U1 by one first current-limiting resistance R20, and this tie point is by pull down resistor R21 ground connection; The voltage input end of the 3rd switching tube Q3 is connected with the control end of a second switch pipe Q2, the voltage input end of the 3rd switching tube Q3 is also connected with the voltage input end of described second switch pipe Q2 by one second current-limiting resistance R19, and the voltage output end of described second switch pipe Q2 is connected with load output cathode;
Described load output control module also comprises current sampling resistor R23, this current sampling resistor R23 one end is electrically connected with load, the other end ground connection of current sampling resistor R23, load is connected with the current signal test side of described microprocessor U1 with the tie point of current sampling resistor R23.
6. electronic cigarette as claimed in claim 1, it is characterized in that, described electronic cigarette also comprises the cell charge protection module be connected with described microprocessor U1, described cell charge protection module prevents overcharge for the protection of battery, described cell charge protection module comprises charging inlet J1, power management chip U3, the power connector end of power management chip U3 is connected with anode, the charging current of power management chip U3 is arranged, monitoring and the pass broken ends of fractured bone are by a current-limiting resistance R15 ground connection, the GND of power management chip U3 holds direct ground connection, the battery of power management chip U3 has been full of the FULL signal detection port of the described microprocessor U1 of end connection, the voltage input end of power management chip U3 is connected with enable input and the tie point of the two passes through the two current-limiting resistance R14 connected, current-limiting resistance R13 is connected with the positive terminal of described charging inlet J1, the negative terminal of described charging inlet J1 is connected to ground, the positive pole of described charging inlet J1, the 5th divider resistance R11 of two series connection is also connected in parallel between negative terminal, 6th divider resistance R12, 5th divider resistance R11, the tie point of the 6th divider resistance R12 is connected with the INT0 signal detection port of described microprocessor U1, wherein, INT0 signal is charging input wake-up signal, FULL signal is for being full of the signal of telecommunication, microprocessor U1 is according to the INT0 signal detected, whether the value of FULL signal is come has input and whether is full of electricity in decision circuitry.
7. electronic cigarette as claimed in claim 6; it is characterized in that; described cell charge protection module also comprises for indicating charging input wake-up signal and the indicator lamp LED1, the indicator lamp LED2 that are full of the signal of telecommunication respectively; described indicator lamp LED1, indicator lamp LED2 are parallel with one another; the two anode is connected with anode by a pull-up resistor R26, and negative electrode is connected with the LED signal control port of microprocessor U1.
8. electronic cigarette as claimed in claim 1, it is characterized in that, described electronic cigarette also comprises the battery voltage sensing module for preventing battery over-discharge, described cell voltage and detection module comprise two the 7th divider resistance R9 connected, 8th divider resistance R10, 7th divider resistance R9, the tie point of the 8th divider resistance R10 is connected with a detection port of microprocessor U1, the other end of the 7th divider resistance R9 is connected with described anode, and the other end of the 8th divider resistance R10 is connected with another detection port of microprocessor U1, described microprocessor U1 calculates described cell voltage according to the voltage sample situation of described two detection port.
9. electronic cigarette as claimed in claim 1, it is characterized in that, described electronic cigarette also comprises switch module, described switch module comprises key switch K1, one end of key switch K1 connects anode by pull-up resistor R27, other end ground connection, pull-up resistor R27 is connected the switching signal test side of microprocessor U1 with the tie point of key switch K1.
CN201520733724.7U 2015-09-21 2015-09-21 Electronic cigarette CN204969478U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105651825A (en) * 2016-03-09 2016-06-08 深圳市赛尔美电子科技有限公司 Method for intelligently recognizing material characteristics of atomizing core
CN106410897A (en) * 2016-10-12 2017-02-15 常州市派腾电子技术服务有限公司 Electronic cigarette and power supply structure thereof
CN107959477A (en) * 2017-12-05 2018-04-24 上海电机学院 A kind of piezoelectric ultrasonic atomizer oscillating circuit
CN108451039A (en) * 2018-03-30 2018-08-28 常州市派腾电子技术服务有限公司 Electronic cigarette control device, method, electronic cigarette and computer storage media
WO2019205914A1 (en) * 2018-04-23 2019-10-31 常州市派腾电子技术服务有限公司 Atomization circuit and electronic cigarette
TWI707516B (en) * 2017-03-06 2020-10-11 日商日本煙草產業股份有限公司 Battery unit, flavor inhaler, method and program for controlling the battery unit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105651825A (en) * 2016-03-09 2016-06-08 深圳市赛尔美电子科技有限公司 Method for intelligently recognizing material characteristics of atomizing core
CN106410897A (en) * 2016-10-12 2017-02-15 常州市派腾电子技术服务有限公司 Electronic cigarette and power supply structure thereof
CN106410897B (en) * 2016-10-12 2019-02-15 常州市派腾电子技术服务有限公司 Electronic cigarette and its power supply architecture
TWI707516B (en) * 2017-03-06 2020-10-11 日商日本煙草產業股份有限公司 Battery unit, flavor inhaler, method and program for controlling the battery unit
CN107959477A (en) * 2017-12-05 2018-04-24 上海电机学院 A kind of piezoelectric ultrasonic atomizer oscillating circuit
CN108451039A (en) * 2018-03-30 2018-08-28 常州市派腾电子技术服务有限公司 Electronic cigarette control device, method, electronic cigarette and computer storage media
WO2019205914A1 (en) * 2018-04-23 2019-10-31 常州市派腾电子技术服务有限公司 Atomization circuit and electronic cigarette

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