CN203259822U - Electronic cigarette control circuit with sound prompt function - Google Patents

Abstract

The utility model discloses an electronic cigarette control circuit with a sound prompt function. The electronic cigarette control circuit comprises a cell and a charging/discharging circuit, wherein a negative electrode of the cell is connected to the ground, one end of the charging/discharging circuit is connected with a positive electrode of the cell and the other end is connected with an atomizer or an external direct-current power supply. The electronic cigarette control circuit also comprises a starting switch, a first electronic switch which is serially connected to the charging/discharging circuit, a control unit connecting the starting switch, the positive electrode of the cell, and the charging/discharging circuit, and a sound-producing device connecting the control unit. The electronic cigarette control circuit allows a user to know the working state of an electronic cigarette in a dim place, thereby avoiding dangers caused by faulty operation or neglectfulness; if the cell of the electronic cigarette is fully charged, a corresponding prompt sound is produced to warn the user to cut off a charger as quickly as possible, so the cell of the electronic cigarette is prevented from burning or exploding caused by overcharge; and when the electronic cigarette is running out of charge, a corresponding prompt sound is produced to warn the user to charge the electronic cigarette, the cell of the electronic cigarette is protected from damage caused by over-discharge.

Description

Electronic cigarette control circuit with sound prompt facility

Technical field

The utility model relates to electronic cigarette, relates in particular to a kind of electronic cigarette control circuit with sound prompt facility.

Background technology

Electronic cigarette is unique electronic product that can the cigarette substitute goods on the current market, and " Smoking is harmful to your health " becomes people's general knowledge in common knowledge, uses electronic cigarette to become Tobacco Control and smoking cessation one effective means in worldwide.Yet electronic cigarette is as a kind of electronic product that contacts with the human body zero distance, and its security is not approved all the time.Because its inner rechargeable type poly-lithium battery that uses in use needs charging and discharging repeatedly.As everyone knows, when lithium ion battery uses, produce easily the danger such as blast or burning under improper environment.So electronic cigarette is as a kind of and product human body intimate contact, it is extremely important that its safety and reliability just seems.At present on the market popular electronic cigarette in use, to the unified mode that adopts the signal light prompting of charging and discharging.People learn by the observation signal lamp whether battery is full of.The defective of this kind prompting mode is that electronic cigarette must be placed on the place that people conveniently see.Be placed on the difficult corner of observing such as electronic cigarette, or the user forgets when electronic cigarette is charging that easy generation of battery overcharges, and might cause electronic cigarette to burn when serious or blast.

The utility model content

The utility model is to solve in the prior art, because the user can't see or when forgeing electronic cigarette, make easily electronic cigarette produce the problem that overcharges, proposes a kind of electronic cigarette with voice prompt function.

For solving the problems of the technologies described above, the technical scheme that the utility model proposes is a kind of electronic cigarette control circuit with sound prompt facility of design, comprise the battery of minus earth and discharge and recharge circuit, discharge and recharge circuit one end and connect anode other end connection atomizer or external dc power; And starting switch, start or stop instruction in order to input; The first electronic switch is serially connected in and discharges and recharges in the circuit; Control module connects the anodal of starting switch, battery and discharges and recharges circuit, in order to conducting and the cut-off of controlling the first electronic switch, detects cell voltage, sends control signal when cell voltage is lower than default lower voltage limit or is higher than preset upper limit voltage; Sound-producing device, connection control unit sends the sound according to control signal.

Described control module also connects a light-emitting device.

Described light-emitting device is light emitting diode, and its anode connects the positive pole of battery, and its negative electrode connects control module.

Described starting switch adopts a kind of in touch-switch, microswitch or the toggle switch.

Described sound-producing device is the second electronic switch and the acoustical generator that is connected between anode and the ground, the second electronic switch controling end connection control unit.

Described acoustical generator adopts a kind of in hummer, loudspeaker, the sound chip.

Compared with prior art, the utility model adds sound-producing device in control circuit, makes the user also can understand the duty of electronic cigarette in the situation that eyes can't be seen, thereby avoids faulty operation or the danger that causes because forget.When electronic cigarette in when charging, just send corresponding auditory tone cues if be full of electricity, allow the user cut off as early as possible charger, prevent burning or blast that the electronic cigarette battery overcharges and causes; When the electronic cigarette electric weight is about to exhaust, send equally corresponding auditory tone cues, reminding user charges to product, prevents the battery over-discharge can of electronic cigarette and damages.

Description of drawings

Below in conjunction with drawings and Examples the utility model is made detailed explanation, wherein:

Fig. 1 is the theory diagram of the utility model preferred embodiment;

Fig. 2 is the circuit theory diagrams of the utility model preferred embodiment.

Embodiment

The utility model has disclosed a kind of electronic cigarette control circuit with sound prompt facility, referring to the theory diagram shown in Fig. 1, it comprises the battery of minus earth and discharges and recharges circuit, discharge and recharge circuit one end and connect anode other end connection atomizer or external dc power, and starting switch S1, start or stop instruction in order to input; The first electronic switch Q1 is serially connected in and discharges and recharges in the circuit; Control module connects the anodal of starting switch, battery and discharges and recharges circuit, in order to conducting and the cut-off of controlling the first electronic switch, detects cell voltage, sends control signal when cell voltage is lower than default lower voltage limit or is higher than preset upper limit voltage; Sound-producing device, connection control unit sends the sound according to control signal.It may be noted that, the electronic cigarette that the utility model discloses is divided into two sections, one section control circuit has been installed, when another section installed two sections in atomizer and be combined, (be connected and connect atomizer, and atomizer gets and can atomize after electric by the terminal among Fig. 2+with terminal G by discharging and recharging circuit for control circuit; Two sections separately after, discharge and recharge circuit and can connect external dc power and charge.

In the preferred embodiment, control module also connects a light-emitting device.

Referring to Fig. 2, light-emitting device is light emitting diode, and its anode connects the positive pole of battery, and its negative electrode connects control module.Light emitting diode can be two D1 and D2, and the anode of D1 and D2 meets the anodal Vcc of battery, and negative electrode connects thepin 8 that meets respectively control module (chip U2), and negative electrode connects thepin 4 that meets respectively control module (chip U2).

Starting switch S1 adopts a kind of in touch-switch, microswitch or the toggle switch.Adopt touch-switch in the preferred embodiment, user's finger touches starting switch, the starting switch conducting, and control circuit is started working.

In the preferred embodiment, sound-producing device is the second electronic switch Q2 and the acoustical generator B1 that is connected between anode and the ground, the second electronic switch controling end connection control unit.

In the preferred embodiment, acoustical generator B1 adopts a kind of in hummer, loudspeaker, the sound chip.

The below describes the course of work of the utility model preferred embodiment in detail take the circuit shown in Fig. 2 as example:

During electronic cigarette work, controller is coordinated control to whole system, and whole system adopts centrally connected power supply, comes energy reserve with battery.When the user smokes, finger rides on the starting switch S1, the S1 conducting, the signal input part (pin 1) of control module (chip U2) is connected to ground, U2 at first detects the voltage of (namely checking power end pin 7) to battery, when cell voltage is higher than default lower voltage limit and allows to smoke, U2 is byoutput port pin 3 output low levels, control the first electronic switch Q1 conducting, terminal+and terminal G between voltage is arranged, atomizer must be established the atomizing of beginning by cable,pin 8 and thepin 4 of U2 are low level simultaneously, D1 and D2 electrified light emitting are with the sight of Reality simulation smoking.Energy shortage when battery reserve, when the voltage ofU2 pin 7 is lower than default lower voltage limit and does not allow to smoke, thepin 8 of U2 and the voltage ofpin 4 are pulse waveform, D1 and D2 flashing are reported to the police, theuniversal port 9 of U2 is low level, the second electronic switch Q2 conducting, acoustical generator sounding alarm, the prompting user battery electric quantity is not enough, needs charging to use.When the user did not smoke, finger left S1, the S1 cut-off, and the pin 1 of U2 is high level, and control module quits work, and thepin 2 of U2,pin 4,pin 8,pin 9 are all high level, Q1, Q2 cut-off, atomizer quits work, and D2, D1 stop luminous.Q1, Q2 adopt metal-oxide-semiconductor in preferred embodiment.

When battery is charged, the external dc power splicing ear+and terminal G, U2 at first detects the voltage of external dc powers (charger) byuniversal port pin 2, and (pin 2 of U2 also can connect external dc power by divider resistance, such as Fig. 2, terminal+and terminal G between be connected inseries resistance R 4 and R2,pin 2 is received on the tie point of R4 and R2), when requiring such as the voltage conforms of charger, drive the Q1 conducting bypin 3, direct supply charges to battery by Q1, make simultaneously pilot lamp D1 and D2 flicker 5 times, make simultaneously sound-producing device SPEAKER sound the connection of reminding user charger well; If the employed charger of user does not meet system requirements, then make pilot lamp D1 and D2 continue fast flicker, make simultaneously sound-producing device send continuous warning tones, the warning user uses illegal charger, please disconnects at once charger.When the user uses the charger that meets system requirements that battery is charged, intermittently the electric weight of battery VCC is detected at charging process middle controller U2, in case detecting battery electric quantity is full of, when the voltage ofU2 pin 7 is higher than preset upper limit voltage, then begin timing, if the user does not still disconnect charger after battery is full of electric 30 minutes, thenU2 pin 4,8,9 is low level, make the sound-producing device reminding user battery of sounding be full of electricity, need disconnect as early as possible charger, damage battery or produce dangerous to prevent from overcharging.

Above embodiment is only for illustrating non-providing constraints.Anyly do not break away from the application's spirit and category, and to its equivalent modifications of carrying out or change, all should be contained among the application's the claim scope.

Claims (6)

1. the electronic cigarette control circuit with sound prompt facility comprises the battery of minus earth and discharges and recharges circuit, discharges and recharges circuit one end and connects anode other end connection atomizer or external dc power, it is characterized in that, also comprises:

Starting switch (S1) starts or stops instruction in order to input;

The first electronic switch (Q1) is serially connected in and discharges and recharges in the circuit;

Control module connects the anodal of starting switch, battery and discharges and recharges circuit, in order to conducting and the cut-off of controlling the first electronic switch, detects cell voltage, sends control signal when cell voltage is lower than default lower voltage limit or is higher than preset upper limit voltage;

Sound-producing device, connection control unit sends the sound according to control signal.

2. the electronic cigarette control circuit with sound prompt facility as claimed in claim 1, it is characterized in that: described control module also connects a light-emitting device.

3. the electronic cigarette control circuit with sound prompt facility as claimed in claim 2, it is characterized in that: described light-emitting device is light emitting diode, and its anode connects the positive pole of battery, and its negative electrode connects control module.

4. the electronic cigarette control circuit with sound prompt facility as claimed in claim 1 is characterized in that: described starting switch (S1) adopts a kind of in touch-switch, microswitch or the toggle switch.

5. the electronic cigarette control circuit with sound prompt facility as claimed in claim 1, it is characterized in that: described sound-producing device is the second electronic switch (Q2) and the acoustical generator (B1) that is connected between anode and the ground, the second electronic switch controling end connection control unit.

6. the electronic cigarette control circuit with sound prompt facility as claimed in claim 5 is characterized in that: described acoustical generator (B1) adopts a kind of in hummer, loudspeaker, the sound chip.

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