CN204376494U - A kind of electronic cigarette charging control protection electric circuit - Google Patents
A kind of electronic cigarette charging control protection electric circuit Download PDFInfo
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- CN204376494U CN204376494U CN201520101101.8U CN201520101101U CN204376494U CN 204376494 U CN204376494 U CN 204376494U CN 201520101101 U CN201520101101 U CN 201520101101U CN 204376494 U CN204376494 U CN 204376494U
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- electronic cigarette
- resistance
- charging control
- microprocessor
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Abstract
The utility model discloses a kind of electronic cigarette charging control protection electric circuit, comprise microprocessor; Described microprocessor is connected with charging control unit, the detecting unit that charges; Described charging control unit, described charging detecting unit are all connected with electronic cigarette heater; Described charging control unit, microprocessor are all connected with electronic cigarette battery by protected location.The utility model circuit is simple, and circuit cost is low, realizes easily, safe and reliable; Effectively can prevent the danger such as the blast causing battery in the course of work because big current passes through.
Description
Technical field
The utility model relates to a kind of electronic cigarette charging control protection electric circuit.
Background technology
Existing electronic cigarette control circuit is divided into two kinds: one is that circuit does not do any protection, and a kind of is the integrated circuit adding battery protection on circuit.Circuit does not do any protection, has potential safety hazard, circuit is fragile, and battery exists the danger of blast; With the control circuit of integrated circuit, cost is high, and operating current is little, and circuit is very complicated.
Summary of the invention
Technical problem to be solved in the utility model is, not enough for prior art, provides a kind of electronic cigarette charging control protection electric circuit.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of electronic cigarette charging control protection electric circuit, comprises microprocessor; Described microprocessor is connected with charging control unit, the detecting unit that charges; Described charging control unit, described charging detecting unit are all connected with electronic cigarette heater; Described charging control unit, microprocessor are all connected with electronic cigarette battery by protected location.
Described charging control unit comprises two charging controlling resistances, and described two charging controlling resistances are respectively connected with a switching tube; Described two switching tubes series connection; Described microprocessor is all accessed in described two charging controlling resistance one end; Described microprocessor is connected with described switch controlled end.This charging control unit structure is simple, and cost is low.
Described charging detecting unit comprises three and detects resistance and a Detection capacitance, first detects resistance and second detects resistant series, 3rd detects resistance one end access first detects between resistance and the second detection resistance, and the 3rd detects the resistance other end is connected with described microprocessor; Described Detection capacitance one end access the described 3rd detects between resistance and described microprocessor, and the described Detection capacitance other end and described second detects resistance one end and is connected; Described first testing circuit one end access electronic cigarette heater positive input terminal.This charging detecting unit structure is simple, and cost is low.
Described microprocessor is connected with touch-switch one end; Described touch-switch other end access electronic cigarette heater negative input end.Touch-switch can turn on and off the power supply of heater.
When microprocessor does not have battery voltage detection function, microprocessor is connected with battery voltage detection circuit; Described battery voltage detection circuit is connected with described electronic cigarette battery; Battery voltage detection circuit comprises three voltage detection resistances and a voltage detecting electric capacity; First voltage detection resistances is connected with the second voltage detection resistances; Tertiary voltage detects between resistance one end described first voltage detection resistances of access and the second voltage detection resistances; Described tertiary voltage detects the resistance other end and is connected with described microprocessor; Described voltage detecting electric capacity one end is accessed described tertiary voltage and is detected between resistance and described microprocessor; Described voltage detecting electric capacity other end ground connection; Described second voltage detection resistances one end is connected with electronic cigarette battery negative pole; Described first voltage detection resistances one end is connected with protected location.
Compared with prior art, the beneficial effect that the utility model has is: the utility model circuit is simple, and circuit cost is low, realizes easily, safe and reliable; Effectively can prevent the danger such as the blast causing battery in the course of work because big current passes through.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment circuit theory diagrams of the utility model;
Fig. 2 is the another kind of embodiment circuit theory diagrams of the utility model.
Embodiment
As shown in Figure 1, the utility model one embodiment comprises microprocessor; Described microprocessor is connected with charging control unit, the detecting unit that charges; Described charging control unit, described charging detecting unit are all connected with electronic cigarette heater; Described charging control unit, microprocessor are all connected with electronic cigarette battery BT1 by protected location.Described charging control unit comprises two charging controlling resistances R4, R5, and described two charging controlling resistances are respectively connected with switching tube Q1, a Q2; Described two switching tubes Q1, Q2 series connection; Described microprocessor is all accessed in described two charging controlling resistance one end; Described microprocessor is connected with described switching tube Q1, Q2 control end, and switching tube Q1 one end is connected with electronic cigarette heater positive input terminal; Switching tube Q2 one end is connected with PTC.Charging detecting unit comprises three and detects resistance and a Detection capacitance C2, first detects resistance R1 and second detects resistance R8 series connection, 3rd detects resistance R7 one end access first detects between resistance and the second detection resistance, and the 3rd detects the resistance other end is connected with described microprocessor; Described Detection capacitance C2 one end access the described 3rd detects between resistance and described microprocessor, and the described Detection capacitance other end and described second detects resistance one end and is connected; Described first testing circuit one end access electronic cigarette heater positive input terminal CH+.
Described microprocessor is connected with touch-switch S1 one end; Described touch-switch S1 other end access electronic cigarette heater negative input end CH-.
As Fig. 2, when microprocessor does not have battery voltage detection function, microprocessor is connected with battery voltage detection circuit; Battery voltage detection circuit comprises three voltage detection resistances and a voltage detecting electric capacity C3; First voltage detection resistances R2 connects with the second voltage detection resistances R6; Tertiary voltage detects between resistance R3 one end described first voltage detection resistances of access and the second voltage detection resistances; Described tertiary voltage detects the resistance other end and is connected with described microprocessor; Described voltage detecting electric capacity one end is accessed described tertiary voltage and is detected between resistance and described microprocessor; Described voltage detecting electric capacity other end ground connection; Described second voltage detection resistances one end is connected with electronic cigarette battery negative pole; Described first voltage detection resistances one end is connected with protected location.
Protected location of the present utility model is PTC.
Microprocessor is also connected to display, for showing operating state when smoking and charge.
The workflow of smoking: pin S1, microprocessor outputs signal, and switching tube Q1 and Q2 opens, and cell voltage electric current is through PTC, Q1 and Q2, and CH+, CH-export.
Charging workflow: CH+ received by charger, CH-, after microprocessor receives the charging signals that charging detecting circuit sends here, microprocessor exports charging signals, switching tube Q1 and Q2 opens, and electric current and voltage is input to battery through CH+, CH-, Q1, Q2, PTC.
The workflow of circuit protection is as follows:
Short-circuit protection: when whole control circuit or heating wire have short circuit, when causing the electric current flowing through PTC to exceed the dangerous currents of setting, the resistance of PTC will become large, output current is diminished, and last turn-off current, after trouble shooting, PTC reverts to small resistor state, and circuit recovers normal work;
Over-charge protective: in charging process, microprocessor is receiving after battery that battery voltage detection circuit sends here is full of signal, and turn off Q1 and Q2, battery does not recharge, and prevents cell voltage from overcharging.After trouble shooting, PTC reverts to small resistor state, and circuit recovers normal work;
Large current charge is protected: in charging process, and when the electric current flowing through PTC exceedes the dangerous currents of setting, the resistance of PTC will become large, and input current is diminished, and last turn-off current, prevents cell damage.After trouble shooting, PTC reverts to small resistor state, and circuit recovers normal work.
Claims (7)
1. an electronic cigarette charging control protection electric circuit, is characterized in that, comprise microprocessor; Described microprocessor is connected with charging control unit, the detecting unit that charges; Described charging control unit, described charging detecting unit are all connected with electronic cigarette heater; Described charging control unit, microprocessor are all connected with electronic cigarette battery by protected location.
2. electronic cigarette charging control protection electric circuit according to claim 1, is characterized in that, described charging control unit comprises two charging controlling resistances, and described two charging controlling resistances are respectively connected with a switching tube; Described two switching tubes series connection; Described microprocessor is all accessed in described two charging controlling resistance one end; Described microprocessor is connected with described switch controlled end.
3. electronic cigarette charging control protection electric circuit according to claim 2, it is characterized in that, described charging detecting unit comprises three and detects resistance and a Detection capacitance, first detects resistance and second detects resistant series, 3rd detects resistance one end access first detects between resistance and the second detection resistance, and the 3rd detects the resistance other end is connected with described microprocessor; Described Detection capacitance one end access the described 3rd detects between resistance and described microprocessor, and the described Detection capacitance other end and described second detects resistance one end and is connected; Described first testing circuit one end access electronic cigarette heater positive input terminal.
4. electronic cigarette charging control protection electric circuit according to claim 3, it is characterized in that, described microprocessor is connected with touch-switch one end; Described touch-switch other end access electronic cigarette heater negative input end.
5., according to the electronic cigarette charging control protection electric circuit one of Claims 1 to 4 Suo Shu, it is characterized in that, described microprocessor is connected with battery voltage detection circuit; Described battery voltage detection circuit is connected with described electronic cigarette battery.
6. electronic cigarette charging control protection electric circuit according to claim 5, it is characterized in that, battery voltage detection circuit comprises three voltage detection resistances and a voltage detecting electric capacity; First voltage detection resistances is connected with the second voltage detection resistances; Tertiary voltage detects between resistance one end described first voltage detection resistances of access and the second voltage detection resistances; Described tertiary voltage detects the resistance other end and is connected with described microprocessor; Described voltage detecting electric capacity one end is accessed described tertiary voltage and is detected between resistance and described microprocessor; Described voltage detecting electric capacity other end ground connection; Described second voltage detection resistances one end is connected with electronic cigarette battery negative pole; Described first voltage detection resistances one end is connected with protected location.
7. electronic cigarette charging control protection electric circuit according to claim 6, it is characterized in that, described protected location is PTC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101101.8U CN204376494U (en) | 2015-02-12 | 2015-02-12 | A kind of electronic cigarette charging control protection electric circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101101.8U CN204376494U (en) | 2015-02-12 | 2015-02-12 | A kind of electronic cigarette charging control protection electric circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204376494U true CN204376494U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520101101.8U Active CN204376494U (en) | 2015-02-12 | 2015-02-12 | A kind of electronic cigarette charging control protection electric circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3661007A1 (en) * | 2018-11-28 | 2020-06-03 | Shenzhen Innokin Technology Co., Ltd. | Low voltage charging control and protection circuit for electronic cigarette and method of charging the electronic cigarette using the circuit |
| CN111669982A (en) * | 2018-02-02 | 2020-09-15 | 日本烟草产业株式会社 | Power supply unit for aspirated component generation device, and method for selecting resistance value of known resistance in power supply unit for aspirated component generation device |
-
2015
- 2015-02-12 CN CN201520101101.8U patent/CN204376494U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111669982A (en) * | 2018-02-02 | 2020-09-15 | 日本烟草产业株式会社 | Power supply unit for aspirated component generation device, and method for selecting resistance value of known resistance in power supply unit for aspirated component generation device |
| EP3738454A4 (en) * | 2018-02-02 | 2021-05-19 | Japan Tobacco Inc. | Power source unit for inhalation component generation device, and method for selecting electric resistance for known resistor in power source unit for inhalation component generation device |
| TWI768748B (en) * | 2018-02-02 | 2022-06-21 | 日商日本煙草產業股份有限公司 | Power source unit for taster ingredient generator and method for selecting resistance value of known power source in power supply unit of taster ingredient generator |
| EP3661007A1 (en) * | 2018-11-28 | 2020-06-03 | Shenzhen Innokin Technology Co., Ltd. | Low voltage charging control and protection circuit for electronic cigarette and method of charging the electronic cigarette using the circuit |
| US11342764B2 (en) | 2018-11-28 | 2022-05-24 | Shenzhen Innokin Technology Co., Ltd. | Low voltage charging control and protection circuit for electronic cigarette and method of charging the electronic cigarette using the circuit |
| US11923708B2 (en) | 2018-11-28 | 2024-03-05 | Shenzhen Innokin Technology Co., Ltd. | Low voltage charging control and protection circuit for electronic cigarette and method of charging the electronic cigarette using the circuit |
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| C14 | Grant of patent or utility model | ||
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