CN105449801A - Power-off protection-type mobile phone charger - Google Patents
Power-off protection-type mobile phone charger Download PDFInfo
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- CN105449801A CN105449801A CN201510850926.4A CN201510850926A CN105449801A CN 105449801 A CN105449801 A CN 105449801A CN 201510850926 A CN201510850926 A CN 201510850926A CN 105449801 A CN105449801 A CN 105449801A
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Abstract
The invention provides a power-off protection-type mobile phone charger, which comprises a shell, a touch unit, a power-off protection unit, a charge circuit and a USB connecting line, wherein the power-off protection unit and the charge circuit are arranged in the shell; the shell is provided with a USB interface; the charge circuit is connected with the USB connecting line through the USB interface; the power-off protection unit comprises a controller, a relay and a timer; the charge circuit is connected with a commercial power through the relay; the relay is also connected with the controller; the controller is connected with the timer; and the touch unit is arranged on the shell and is connected with the controller. According to the power-off protection-type mobile phone charger, disconnection of the charge circuit and the commercial power can be automatically achieved; power-off protection of the charger can be achieved; the use security of the charger is strengthened; potential safety hazards of over-quick damage or spontaneous combustion and the like caused by long-term working of the charger are avoided; and a certain energy-saving effect can be achieved due to the fact that the charger does not continuously work after a power failure.
Description
Technical field
The present invention relates to a kind of power-off protection type charger for mobile phone.
Background technology
Charger for mobile phone converts high voltage to low-voltage by transformer, if do not pulled out for a long time, it is just working always.Charger does not pull out power consumption in the same old way, and what the power consumption of charger for mobile phone was maximum is 308 milliwatts.Charger does not pull out in supply socket, although charger does not connect mobile phone, the circuit board of charger internal leads to electricity, also in running order, still can consumes power.
After charger works long hours, charger can generate heat, and the insulating barrier of coil may be melted, and then causes short circuit.And charger is very little, space is not had not dispel the heat yet, no matter overheated or short circuit all easily causes burning.General mobile phone charges at most and just can be full of for 4 hours, just charger should be dialled, not pull out charger for a long time, be easy to the accidents such as initiation fire, blast, accidental shock after being full of.
And for user when using charger for mobile phone charging, because the mobile phone charging interval will expend 2-3 hour usually, being easy to after being full of electricity, forgetting and pull up charger.Especially for when carrying out at night charging, often one to fill be exactly one the whole night for the mobile phone of a lot of user, and full lattice also can not be taken off.Like this when using charger for mobile phone, not pulling up charger for mobile phone for a long time, there is the accident potential such as very large fire.
The problems referred to above should be paid attention to and the problem solved in the design and production process of charger for mobile phone.
Summary of the invention
The object of this invention is to provide a kind of power-off protection type charger for mobile phone and solve the long-term problem of not pulling out the accident potential such as the very large fire of charger existence existed in prior art.
Technical solution of the present invention is:
A kind of power-off protection type charger for mobile phone; comprise housing, touch control unit, power-off protection unit, charging circuit and USB connecting line; power-off protection unit, charging circuit are all located in housing; housing is provided with USB interface; charging circuit is connected with USB connecting line by USB interface; power-off protection unit comprises controller, relay, timer; charging circuit is connected with civil power by relay; relay is also connected with controller; controller is connected with timer; touch control unit is located on housing, touch control unit connection control device.
Further, charging circuit comprises diode D1, transformer T1, resistance R1, resistance R2, resistance R3, triode Q1, electric capacity C1, voltage-stabiliser tube ZD1, resistance R4, electrochemical capacitor C2, resistance R5, diode D2, the positive pole of diode D3, diode D1 connects the electrode input end of charging circuit, and the negative pole of diode D1 is connected to one end of the former limit winding of transformer T1, one end of resistance R1, the other end of the former limit winding of transformer T1 is connected with the collector electrode of triode Q1, and the other end of resistance R1 is connected to the base stage of triode Q1, one end of electric capacity C1, the negative pole of voltage-stabiliser tube ZD1, the other end of electric capacity C1 is connected with one end of the feedback winding of transformer T1 by resistance R4, the negative pole of diode D3, the other end of the feedback winding of transformer T1 is connected to the positive pole of electrochemical capacitor C2, the emitter of triode Q1, the other end of the feedback winding of transformer T1 is also connected with the base stage of triode Q1 by resistance R2, the other end of the feedback winding of transformer T1 is also connected with the negative input of charging circuit by resistance R3, the other end of the feedback winding of transformer T1 also connects the positive pole of diode D3 respectively by resistance R5, the positive pole of voltage-stabiliser tube ZD1, the negative pole of electrochemical capacitor C2, one end of the vice-side winding of transformer T1 is connected with the cathode output end of charging circuit, and the other end of the vice-side winding of transformer T1 is connected with the negative pole of diode D2, and the positive pole of diode D2 is connected with the cathode output end of charging circuit.
Further, after civil power input, after diode D1 halfwave rectifier, enter transformer T1, and be added on the collector electrode of triode Q1 by the former limit winding of transformer T1, simultaneously, one part of current is added in triode Q1 base stage by resistance R1, triode Q1 conducting, electric current flows through the former limit winding of transformer T1, now the flux change of transformer T1 magnetic core makes the feedback winding of transformer T1 and vice-side winding induce voltage, the voltage reversal of the feedback winding of transformer T1 is added in the base stage of triode Q1, triode Q1 is ended, iterative cycles like this, the vice-side winding of transformer T1 just induces voltage, then the vice-side winding of transformer T1 exports after diode D2 halfwave rectifier.
Further, when touch control unit is touched, controller is sent a signal to, controller transmits control signal and carries out timing to timer, when setting-up time arrives, controller sends power down control signal to relay, and the connection of charging circuit and civil power disconnects by relay.
The invention has the beneficial effects as follows: this kind of power-off protection type charger for mobile phone, can realize the disconnection of charging circuit and civil power automatically.The power-off protection of charger can be realized, the safety in utilization of intensified charging device, avoid charger to work long hours and the potential safety hazard such as too fast damage or generation spontaneous combustion.And after a loss of power, because charger is not in continuous firing, can realize certain energy-conservation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the connection diagram of charging circuit in embodiment;
1-controller, 2-timer, 3-relay, 4-charging circuit, 5-touch control unit.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Embodiment
A kind of power-off protection type charger for mobile phone; as Fig. 1; comprise housing, touch control unit 5, power-off protection unit, charging circuit 4 and USB connecting line; power-off protection unit, charging circuit 4 are all located in housing; housing is provided with USB interface; charging circuit 4 is connected with USB connecting line by USB interface; power-off protection unit comprises controller 1, relay 3, timer 2; charging circuit 4 is connected with civil power by relay 3; relay 3 is also connected with controller 1; controller 1 is connected with timer 2, and touch control unit 5 is located on housing, touch control unit 5 connection control device 1.
Embodiment by arranging relay 3 between the connection of charging circuit 4 and civil power, and is carried out control relay 3 by controller 1 and is realized charging circuit 4 and the disconnection of civil power after arriving setting-up time.Can avoid working long hours when charger for mobile phone is not pulled up for a long time, and the potential safety hazard existed.
This kind of power-off protection type charger for mobile phone, can realize the disconnection of charging circuit 4 and civil power automatically.The power-off protection of charger can be realized, the safety in utilization of intensified charging device, avoid charger to work long hours and the potential safety hazard such as too fast damage or generation spontaneous combustion.And after a loss of power, because charger is not in continuous firing, can realize certain energy-conservation.
Auto-breaking process is specially: when starting to charge, when touch control unit 5 is touched, send a signal to controller 1, controller 1 transmits control signal and carries out timing to timer 2, when setting-up time arrives, controller 1 sends power down control signal to relay 3, and the connection of charging circuit 4 with civil power disconnects by relay 3.
As Fig. 2, charging circuit 4 comprises diode D1, transformer T1, resistance R1, resistance R2, resistance R3, triode Q1, electric capacity C1, voltage-stabiliser tube ZD1, resistance R4, electrochemical capacitor C2, resistance R5, diode D2, the positive pole of diode D3, diode D1 connects the electrode input end of charging circuit 4, and the negative pole of diode D1 is connected to one end of the former limit winding of transformer T1, one end of resistance R1, the other end of the former limit winding of transformer T1 is connected with the collector electrode of triode Q1, and the other end of resistance R1 is connected to the base stage of triode Q1, one end of electric capacity C1, the negative pole of voltage-stabiliser tube ZD1, the other end of electric capacity C1 is connected with one end of the feedback winding of transformer T1 by resistance R4, the negative pole of diode D3, the other end of the feedback winding of transformer T1 is connected to the positive pole of electrochemical capacitor C2, the emitter of triode Q1, the other end of the feedback winding of transformer T1 is also connected with the base stage of triode Q1 by resistance R2, the other end of the feedback winding of transformer T1 is also connected with the negative input of charging circuit 4 by resistance R3, the other end of the feedback winding of transformer T1 also connects the positive pole of diode D3 respectively by resistance R5, the positive pole of voltage-stabiliser tube ZD1, the negative pole of electrochemical capacitor C2, one end of the vice-side winding of transformer T1 is connected with the cathode output end of charging circuit 4, and the other end of the vice-side winding of transformer T1 is connected with the negative pole of diode D2, and the positive pole of diode D2 is connected with the cathode output end of charging circuit 4.
After civil power input, after diode D1 halfwave rectifier, enter transformer T1, and be added on the collector electrode of triode Q1 by the former limit winding of transformer T1, simultaneously, one part of current is added in triode Q1 base stage by resistance R1, triode Q1 conducting, electric current flows through the former limit winding of transformer T1, now the flux change of transformer T1 magnetic core makes the feedback winding of transformer T1 and vice-side winding induce voltage, the voltage reversal of the feedback winding of transformer T1 is added in the base stage of triode Q1, triode Q1 is ended, iterative cycles like this, the vice-side winding of transformer T1 just induces voltage, then the vice-side winding of transformer T1 exports after diode D2 halfwave rectifier.
Claims (4)
1. a power-off protection type charger for mobile phone; it is characterized in that: comprise housing, touch control unit, power-off protection unit, charging circuit and USB connecting line; power-off protection unit, charging circuit are all located in housing; housing is provided with USB interface; charging circuit is connected with USB connecting line by USB interface; power-off protection unit comprises controller, relay, timer; charging circuit is connected with civil power by relay; relay is also connected with controller; controller is connected with timer; touch control unit is located on housing, touch control unit connection control device.
2. power-off protection type charger for mobile phone as claimed in claim 1, is characterized in that: charging circuit comprises diode D1, transformer T1, resistance R1, resistance R2, resistance R3, triode Q1, electric capacity C1, voltage-stabiliser tube ZD1, resistance R4, electrochemical capacitor C2, resistance R5, diode D2, the positive pole of diode D3, diode D1 connects the electrode input end of charging circuit, and the negative pole of diode D1 is connected to one end of the former limit winding of transformer T1, one end of resistance R1, the other end of the former limit winding of transformer T1 is connected with the collector electrode of triode Q1, and the other end of resistance R1 is connected to the base stage of triode Q1, one end of electric capacity C1, the negative pole of voltage-stabiliser tube ZD1, the other end of electric capacity C1 is connected with one end of the feedback winding of transformer T1 by resistance R4, the negative pole of diode D3, the other end of the feedback winding of transformer T1 is connected to the positive pole of electrochemical capacitor C2, the emitter of triode Q1, the other end of the feedback winding of transformer T1 is also connected with the base stage of triode Q1 by resistance R2, the other end of the feedback winding of transformer T1 is also connected with the negative input of charging circuit by resistance R3, the other end of the feedback winding of transformer T1 also connects the positive pole of diode D3 respectively by resistance R5, the positive pole of voltage-stabiliser tube ZD1, the negative pole of electrochemical capacitor C2, one end of the vice-side winding of transformer T1 is connected with the cathode output end of charging circuit, and the other end of the vice-side winding of transformer T1 is connected with the negative pole of diode D2, and the positive pole of diode D2 is connected with the cathode output end of charging circuit.
3. power-off protection type charger for mobile phone as claimed in claim 2, it is characterized in that: after civil power input, after diode D1 halfwave rectifier, enter transformer T1, and be added on the collector electrode of triode Q1 by the former limit winding of transformer T1, simultaneously, one part of current is added in triode Q1 base stage by resistance R1, triode Q1 conducting, electric current flows through the former limit winding of transformer T1, now the flux change of transformer T1 magnetic core makes the feedback winding of transformer T1 and vice-side winding induce voltage, the voltage reversal of the feedback winding of transformer T1 is added in the base stage of triode Q1, triode Q1 is ended, iterative cycles like this, the vice-side winding of transformer T1 just induces voltage, then the vice-side winding of transformer T1 exports after diode D2 halfwave rectifier.
4. the power-off protection type charger for mobile phone as described in any one of claim 1-3; it is characterized in that: when touch control unit is touched; send a signal to controller; controller transmits control signal and carries out timing to timer; when setting-up time arrives; controller sends power down control signal to relay, and the connection of charging circuit and civil power disconnects by relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850926.4A CN105449801A (en) | 2015-11-30 | 2015-11-30 | Power-off protection-type mobile phone charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850926.4A CN105449801A (en) | 2015-11-30 | 2015-11-30 | Power-off protection-type mobile phone charger |
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| Publication Number | Publication Date |
|---|---|
| CN105449801A true CN105449801A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510850926.4A Pending CN105449801A (en) | 2015-11-30 | 2015-11-30 | Power-off protection-type mobile phone charger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107773347A (en) * | 2017-11-16 | 2018-03-09 | 绵阳市建诚电子有限公司 | A kind of multifunctional electro-heating hand warmer based on power-off protection |
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| CN104348231A (en) * | 2014-11-05 | 2015-02-11 | 王志 | Mobile phone lithium battery emergency charger |
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| CN204793467U (en) * | 2015-07-27 | 2015-11-18 | 宁夏源浩科技服务有限公司 | Intelligent energy -conserving socket of timing |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201019916Y (en) * | 2007-03-08 | 2008-02-13 | 张倩捷 | Infrared ray detection guide stick for blind person and mating charger thereof |
| CN101141073A (en) * | 2007-04-16 | 2008-03-12 | 徐群强 | Multifunctional mobile phone charger for holding power generation |
| CN102163866A (en) * | 2011-05-11 | 2011-08-24 | 袁传森 | Mobile phone battery charger capable of timing |
| CN202797513U (en) * | 2012-10-10 | 2013-03-13 | 山东索尔电子科技有限公司 | Cell phone charging socket |
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| CN107773347A (en) * | 2017-11-16 | 2018-03-09 | 绵阳市建诚电子有限公司 | A kind of multifunctional electro-heating hand warmer based on power-off protection |
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Application publication date: 20160330 |
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