CN209787043U

CN209787043U - atomization intensity adjustable electron cigarette ultrasonic atomization circuit

Info

Publication number: CN209787043U
Application number: CN201920974421.2U
Authority: CN
Inventors: 叶为全; 胡永华; 谢骥
Original assignee: China Tobacco Anhui Industrial Co Ltd
Current assignee: China Tobacco Anhui Industrial Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2019-12-13
Anticipated expiration: 2029-06-26

Abstract

the utility model discloses an electronic cigarette ultrasonic atomization circuit with adjustable atomization strength, including boost circuit, the oscillating circuit who is connected with boost circuit, the bleeder circuit who is connected with oscillating circuit, boost circuit comprises SX1308 boost chip, inductance L2, resistance R6, resistance R7, electric capacity C4, electric capacity C5, electric capacity C6 and diode D3; the oscillating circuit consists of a 555 timer chip, a resistor R1, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a diode D1 and a diode D2; the voltage dividing circuit consists of a CD4066 four-way analog switch, a slide rheostat R2 and a resistor R5. The utility model discloses simple structure, design benefit reasonable, reliable operation, low cost.

Description

atomization intensity adjustable electron cigarette ultrasonic atomization circuit

Technical Field

the utility model relates to an ultrasonic atomization circuit especially relates to an atomizing intensity adjustable electron cigarette ultrasonic atomization circuit, belongs to novel tobacco products technical research field.

background

At present, more than 95% of electronic cigarettes in the market adopt a resistance wire heating mode, the smoke quantity of the mode is large, the cost is low, the technology is mature, however, some compounds generated by heating the smoke oil by a heating type atomizer can have unknown health threats, and meanwhile, the heating type atomizer adopts the resistance wire heating mode, so that when the heating type atomizer is used poorly, the danger of oil splashing, burning and even explosion is easily generated. Ultrasonic atomization electron cigarette receives more and more attention, and the mode that its flue gas produced need not the heating, can reduce harmful substance's content in the flue gas more effectively, and output voltage is generally fixed among the circuit system of current ultrasonic atomization cigarette, and tobacco tar atomization intensity can not be adjusted to lead to the consumer to hardly select suitable smog volume according to the needs of oneself. Therefore, its specific application is greatly limited.

Disclosure of Invention

The utility model discloses an avoid the weak point that above-mentioned prior art exists, provide a simple structure, reliable operation, low cost's atomizing intensity adjustable electron cigarette ultrasonic atomization circuit to can adjust tobacco tar atomizing intensity in due course, thereby satisfy the practical application demand.

The utility model provides a scheme that its technical problem adopted is:

The utility model relates to an atomizing intensity adjustable electron cigarette ultrasonic atomization circuit's characteristics include: the voltage-boosting circuit comprises a voltage-boosting circuit, an oscillating circuit and a voltage-dividing circuit;

The boosting circuit consists of an SX1308 boosting chip, an inductor L2, a resistor R6, a resistor R7, a capacitor C4, a capacitor C5, a capacitor C6 and a diode D3;

the SW pin of the SX1308 boost chip is connected with a power supply VCC through an inductor L2; the SW pin of the SX1308 chip U3 is also connected with the anode of a diode D3; the cathode of the diode D3 is grounded through a capacitor C5; a capacitor C6 is connected in parallel with two ends of the capacitor C5; an IN pin and an EN pin of the SX1308 boost chip are both connected with a power supply VCC; a capacitor C4 is connected between the power supply VCC and the ground terminal; the FB pin of the SX1308 boost chip U3 is respectively connected with one end of a resistor R6 and one end of a resistor R7; the other end of the resistor R6 is grounded through a capacitor C5; the other end of the resistor R7 is grounded;

the oscillating circuit consists of a 555 timer chip, a resistor R1, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a diode D1 and a diode D2;

a VCC pin of the 555 timer chip is respectively connected with a RST pin of the 555 timer chip and the cathode of the diode D3; the VCC pin of the 555 timer chip is also connected with the OUT pin of the 555 timer chip through a resistor R4; the RST pin of the 555 timer chip is connected with the DIS pin of the 555 timer chip through a resistor R1; the DIS pin of the 555 timer chip is also respectively connected with the anode of a diode D1 and the cathode of a diode D2; the cathode of the diode D1 is connected with the THR pin and the TRI pin of the 555 timer chip respectively; the anode of the diode D2 is connected with the cathode of the diode D1 through a resistor R3; a CON pin of the 555 timer chip is grounded through a capacitor C2, and a capacitor C1 is connected between the ground terminal of the capacitor C2 and the cathode of the diode D1;

the voltage dividing circuit consists of a CD4066 four-way analog switch, a slide rheostat R2 and a resistor R5;

The IN1 pin of the CD4066 four-way analog switch is connected with the OUT pin of the 555 timer chip; the S1 pin and the VDD pin of the CD4066 four-way bidirectional analog switch are both grounded through a resistor R5; the slide sheet of the slide rheostat R2 is connected with the negative electrode of a diode D3 in the booster circuit, and a terminal at one end of the slide rheostat R2 is grounded through a resistor R5; the VSS pin of the CD4066 four-way analog switch is grounded.

compared with the prior art, the utility model has the advantages that:

the utility model discloses a 555 timer constitutes the oscillation, simple structure, and the output is stable, and the low price makes the output voltage of oscillation adjustable through bleeder circuit simultaneously, and has guaranteed that the oscillation frequency is unchangeable.

drawings

fig. 1 is a block diagram of the circuit of the present invention;

fig. 2 is a schematic circuit diagram of the present invention;

Reference numbers in the figures: a boost circuit, B oscillation circuit, C bleeder circuit.

Detailed Description

in this embodiment, as shown in fig. 1, an electronic cigarette ultrasonic atomization circuit with adjustable atomization intensity includes: the circuit comprises a direct current booster circuit A based on an SX1308 chip U3, an oscillation circuit B based on a 555 timer U1 and a voltage division circuit C formed by a CD4066 four-way analog switch U2;

As shown in fig. 2, the boost circuit a is composed of an SX1308 boost chip U3, an inductor L2, a resistor R6, a resistor R7, a capacitor C4, a capacitor C5, a capacitor C6, and a diode D3;

An SW pin of the SX1308 boost chip U3 is connected with a power supply VCC through an inductor L2; the SW pin of the SX1308 chip U3 is also connected with the anode of the diode D3; the cathode of the diode D3 is grounded through a capacitor C5; a capacitor C6 is connected in parallel with two ends of the capacitor C5; an IN pin and an EN pin of the SX1308 boosting chip U3 are both connected with a power supply VCC; a capacitor C4 is connected between the power supply VCC and the ground terminal; an FB pin of the SX1308 boosting chip U3 is connected with one end of a resistor R6 and one end of a resistor R7 respectively; the other end of the resistor R6 is grounded through a capacitor C5; the other end of the resistor R7 is grounded; the GND pin of the SX1308 chip U3 is grounded;

as shown in fig. 2, the oscillation circuit B is composed of a 555 timer chip U1, a resistor R1, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a diode D1, and a diode D2;

a VCC pin of the 555 timer chip U1 is respectively connected with a RST pin of the 555 timer chip U1 and the cathode of the diode D3; the VCC pin of the 555 timer chip U1 is also connected with the OUT pin of the 555 timer chip U1 through a resistor R4; the RST pin of the 555 timer chip U1 is connected with the DIS pin of the 555 timer chip U1 through a resistor R1; the DIS pin of the 555 timer chip U1 is also connected with the anode of the diode D1 and the cathode of the diode D2 respectively; the cathode of the diode D1 is connected with the THR pin and the TRI pin of the 555 timer chip U1 respectively; the anode of the diode D2 is connected with the cathode of the diode D1 through a resistor R3; a CON pin of the 555 timer chip U1 is grounded through a capacitor C2, and a capacitor C1 is connected between the grounding end of the capacitor C2 and the cathode of the diode D1; the GND pin of the 555 timer chip U1 is grounded;

As shown in fig. 2, the voltage divider circuit C is composed of a CD4066 four-way analog switch U2, a slide rheostat R2 and a resistor R5;

the IN1 pin of the CD4066 four-way analog switch U2 is connected with the OUT pin of the 555 timer chip U1; the S1 pin and the VDD pin of the CD4066 four-way analog switch U2 are both grounded through a resistor R5; the slide sheet of the slide rheostat R2 is connected with the negative electrode of a diode D3 in the booster circuit A, and the terminal at one end of the slide rheostat R2 is grounded through a resistor R5; the VSS pin of the CD4066 quad bi-directional analog switch U2 is grounded.

The utility model discloses a theory of operation is: firstly, a DC booster circuit A is adopted to boost the power supply voltage and provide the boosted power supply voltage for an oscillating circuit B, an oscillating signal generated by the oscillating circuit B is transmitted to a CD4066 four-way analog switch U2 to control the on-off of the switch, and meanwhile, a DC voltage division formed by a slide rheostat R2 and a fixed value resistor R5 is transmitted to an input port of a CD4066 four-way analog switch U2. The amplitude of the high-frequency oscillation signal obtained in this way is the same as the magnitude of the direct-current voltage division, and the frequency is the same as the frequency of the oscillation signal, so that the adjustment of the slide rheostat R2 only changes the amplitude of the output voltage and does not influence the frequency.

The output voltage Vout of the boosting circuit a composed of SX1308 and the boost chip U3 is Vref × (1+ R6/R7), where Vref is the feedback voltage 0.6V, and R7 is preferably 10K Ω.

the oscillating circuit B consisting of the 555 timer cannot change suddenly due to the voltage on the C1 when the oscillating circuit B is just powered on, namely the initial levels of the TRI pin and the THR pin are low levels, the 555 timer is set, and the output OUT pin is high level. The C1 charges the voltage through R1 and D1, the potentials of the TRI pin and the THR pin rise, when the potentials rise to 2Vcc/3, the trigger is reset, and the output level OUT pin is at a low level at the moment. The capacitor C1 discharges through discharge tubes in the R3, the D2 and the 555, so that the potentials of the TRI pin and the THR pin are reduced, when the potentials of the TRI pin and the THR pin are reduced to Vcc/3, the trigger is set again, and the OUT pin is inverted to be at a high level. The capacitor C1 was discharged through R3 for the following time periods: tPL ═ R3 × C1 × 1n2 ≈ 0.7 × R3 × C1; when the discharge of the C1 is finished, the Vcc will charge the capacitor C1 through R1, and the time required for the potential of the TRI pin and the THR pin to rise from Vcc/3 to 2Vcc/3 is as follows: tPH ═ R1 × C1 × 1n2 ≈ 0.7 × R1 × C1; when the potentials of the TRI pin and the THR pin rise to 2Vcc/3, the trigger is turned over again, and a periodic square wave is obtained at the output end in such a way, wherein the frequency of the periodic square wave is as follows: 1/(tPL + tPH) ≈ 1.43/[ (R1+ R3) × C1 ].

The voltage division circuit C receives the frequency from the oscillating circuit and the magnitude of the direct current division to form a signal with corresponding amplitude and frequency.

Claims

1. the utility model provides an atomizing intensity adjustable electron cigarette ultrasonic atomization circuit which characterized in that includes: a booster circuit (A), an oscillation circuit (B) and a voltage dividing circuit (C);

The boosting circuit (A) is composed of an SX1308 boosting chip (U3), an inductor L2, a resistor R6, a resistor R7, a capacitor C4, a capacitor C5, a capacitor C6 and a diode D3;

The SW pin of the SX1308 boost chip (U3) is connected with a power supply VCC through an inductor L2; the SW pin of the SX1308 chip (U3) is also connected with the anode of a diode D3; the cathode of the diode D3 is grounded through a capacitor C5; a capacitor C6 is connected in parallel with two ends of the capacitor C5; an IN pin and an EN pin of the SX1308 boost chip (U3) are both connected with a power supply VCC; a capacitor C4 is connected between the power supply VCC and the ground terminal; an FB pin of the SX1308 boost chip (U3) is respectively connected with one end of a resistor R6 and one end of a resistor R7; the other end of the resistor R6 is grounded through a capacitor C5; the other end of the resistor R7 is grounded;

The oscillating circuit (B) consists of a 555 timer chip (U1), a resistor R1, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a diode D1 and a diode D2;

A VCC pin of the 555 timer chip (U1) is respectively connected with a RST pin of the 555 timer chip and a cathode of the diode D3; the VCC pin of the 555 timer chip (U1) is also connected with the OUT pin of the 555 timer chip through a resistor R4; the RST pin of the 555 timer chip (U1) is connected with the DIS pin of the 555 timer chip through a resistor R1; the DIS pin of the 555 timer chip (U1) is also respectively connected with the anode of a diode D1 and the cathode of the diode D2; the cathode of the diode D1 is respectively connected with the THR pin and the TRI pin of the 555 timer chip (U1); the anode of the diode D2 is connected with the cathode of the diode D1 through a resistor R3; a CON pin of the 555 timer chip (U1) is grounded through a capacitor C2, and a capacitor C1 is connected between the ground terminal of the capacitor C2 and the cathode of the diode D1;

The voltage dividing circuit (C) consists of a CD4066 four-way analog switch (U2), a slide rheostat R2 and a resistor R5;

the IN1 pin of the CD4066 four-way analog switch (U2) is connected with the OUT pin of the 555 timer chip (U1); the S1 pin and the VDD pin of the CD4066 four-way analog switch (U2) are both grounded through a resistor R5; the slide sheet of the slide rheostat R2 is connected with the negative electrode of a diode D3 in the booster circuit (A), and the terminal at one end of the slide rheostat R2 is grounded through a resistor R5; the VSS pin of the CD4066 four-way analog switch (U2) is grounded.