CN205882733U - Automatic outage cell -phone charger - Google Patents
Automatic outage cell -phone charger Download PDFInfo
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- CN205882733U CN205882733U CN201520973268.3U CN201520973268U CN205882733U CN 205882733 U CN205882733 U CN 205882733U CN 201520973268 U CN201520973268 U CN 201520973268U CN 205882733 U CN205882733 U CN 205882733U
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- 239000003990 capacitor Substances 0.000 claims description 36
- 238000004804 winding Methods 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000002269 spontaneous effect Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000009514 concussion Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model provides an automatic outage cell -phone charger, which comprises a housin, the timing button, the power -off protection unit, a display screen, charging circuit and USB connecting wire, the power -off protection unit, charging circuit all locates in the casing, the power -off protection unit includes the controller, the normally open contact of the rela, the time -recorder, the controller is connected with time -recorder and display screen respectively, the timing button is located on the casing, the time -recorder is connected to the timing button, the casing is equipped with the USB interface, charging circuit has the USB connecting wire through USB interface connection, charging circuit is connected with the commercial power through the relay, the relay still is connected with the controller, this kind of automatic outage cell -phone charger can realize the disconnection of charging circuit and commercial power automatically. Can realize the power -off protection of charger, the safety in utilization of intensified charging ware is avoided the long -time work of charger and is damaged or produce potential safety hazard such as spontaneous combustion at the excessive speed. And after the outage, because certain energy -conservation not at continued work, can be realized to the charger.
Description
Technical field
This utility model relates to one and automatically powers off charger for mobile phone.
Background technology
Charger for mobile phone is, by transformator, high voltage is converted into low-voltage, if do not pulled out for a long time, it exists the most always
Work.Charger does not pull out power consumption in the same old way, the power consumption of charger for mobile phone maximum for 308 milliwatts.Charger is in supply socket
Do not pull out, although charger is not switched on mobile phone, but the circuit board of charger internal leads to electricity, also in duty, still
So can consume electricity.
After charger works long hours, charger can generate heat, and the insulating barrier of coil may be melted, and then causes short
Road.And charger is the least, space is not had the most not dispel the heat, no matter overheated or short circuit the most easily causes burning.General mobile phone
At most charging just can be full of for 4 hours, just charger should be dialled, the most do not pull out charger after being full of, it is easy to
The accidents such as initiation fire, blast, accidental shock.
And for user when using charger for mobile phone charging, due to mobile phone charging interval 2-3 to be expended hour,
It is easy to after fully charged, forgets to pull up charger.Particularly with the when of being charged at night, the mobile phone warp of a lot of users
Normal one to fill be exactly one the whole night, and full lattice also will not be taken off.So when using charger for mobile phone, the most do not pull up mobile phone charging
Device, also exists the accident potential such as the biggest fire.
The problems referred to above are the problems should paid attention to and solve in the design and production process of charger for mobile phone.
Utility model content
The purpose of this utility model is to provide one and automatically powers off charger for mobile phone and solve present in prior art long-term
Do not pull out the problem that charger exists the accident potential such as the biggest fire.
Technical solution of the present utility model is:
One automatically powers off charger for mobile phone, including housing, timing button, power-off protection unit, display screen, charging circuit
With USB connecting line, power-off protection unit, charging circuit be all located in housing, power-off protection unit include controller, relay,
Timer, controller is connected to timer and display screen, and timing button is located on housing, timing button connection timer,
Housing is provided with USB interface, and charging circuit is connected by USB interface USB connecting line, and charging circuit is connected by relay city
Electricity, relay is also associated with controller.
Further, charging circuit includes transformator T1, diode D1, electrochemical capacitor C1, resistance R1, resistance R2, resistance
R3, electric capacity C2, diode D2, diode D3, audion Q1, audion Q2, resistance R4, electrochemical capacitor C3, diode D4, voltage stabilizing
Pipe ZD1, resistance R5, electric capacity C4, diode D5, electrochemical capacitor C5；The positive pole of diode D1 connects has the positive pole of charging circuit to connect
Entering end, the negative pole of diode D1 is connected to one end of the primary side winding of the positive pole of electrochemical capacitor C1, transformator T1, transformator
The other end of the primary side winding of T1 is connected to the positive pole of diode D2, the colelctor electrode of audion Q1, the negative pole of diode D2
Connected the negative pole of diode D1 by electric capacity C2, electric capacity C2 is parallel with resistance R3, and the negative pole of diode D1 divides also by resistance R2
The base stage of other connecting triode Q1, the colelctor electrode of audion Q2, the emitter stage of audion Q1 is connected to become by resistance R4
Feedback one end of winding, the positive pole of electrochemical capacitor C3, the emitter stage of audion Q2, the negative pole of electrochemical capacitor C1 of depressor T1, becomes
The other end of the feedback winding of depressor T1 connects the negative pole having diode D4, and the emitter stage of audion Q1 is also associated with diode D3
Positive pole, the negative pole of diode D3 connects the base stage having audion Q2；The negative pole of electrochemical capacitor C3 connects diode D4's respectively
Positive pole, the positive pole of stabilivolt ZD1, the negative pole of diode D4 passes sequentially through the negative pole that electric capacity C4, resistance R5 connect stabilivolt ZD1,
The negative pole of stabilivolt ZD1 is also associated with the base stage of audion Q1；The feedback winding of the negative pole connection transformer T1 of electrochemical capacitor C1
One end, the negative pole of electrochemical capacitor C1 also by resistance R1 connect charging circuit negative pole incoming end；The secondary of transformator T1 around
One end of group connects the positive pole of diode D5, and the negative pole of diode D5 is connected to the positive pole of electrochemical capacitor C5, charging circuit
Cathode output end, the other end of the vice-side winding of transformator T1 connect respectively the negative pole of electrochemical capacitor C5, charging circuit negative
Pole outfan.
Further, after civil power input, the input current of the positive pole incoming end of charging circuit is whole through diode D1 half-wave
Stream, the negative pole incoming end of charging circuit, after resistance R1, is filtered by electrochemical capacitor C1；It is added in audion Q1's through transformator T1
Colelctor electrode, emitter stage, civil power live wire is added in the base stage of audion Q1 through resistance R2, and resistance R2 provides starting current, audion Q1
Conducting；Made audion Q2 turn on by the feedback winding of transformator T1, force audion Q1 to end, make audion Q1 be in concussion shape
State, the vice-side winding of transformator T1 obtains voltage output.
Further, diode D2, resistance R2, electric capacity C2 form peak absorbing loop and protect audion Q1, diode
D3 feeds back rectification, and resistance R5, electric capacity C4 provide conducting electric current, stabilivolt ZD1 voltage-stabilizing protection audion Q1, three poles for audion Q1
Pipe Q2.
Further, after timing button is pressed, timer starts timing, and when the time of setting arrives, controller is sent out
Power down control signal is sent the connection of charging circuit with civil power to be disconnected to relay, relay.
The beneficial effects of the utility model are: this kind automatically powers off charger for mobile phone, it is possible to be automatically obtained charging circuit with
The disconnection of civil power.It is capable of the power-off protection of charger, the safety in utilization of intensified charging device, it is to avoid the long-time work of charger
Make and the potential safety hazard such as too fast damage or generation spontaneous combustion.And after a loss of power, due to charger not in continuous firing, it is possible to realize one
Fixed is energy-conservation.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment；
Fig. 2 is the connection diagram of charging circuit in embodiment；
1-controller, 2-timer, 3-relay, 4-charging circuit, 5-timing button, 6-display screen.
Detailed description of the invention
Describe preferred embodiment of the present utility model below in conjunction with the accompanying drawings in detail.
Embodiment
One automatically powers off charger for mobile phone, such as Fig. 1, including housing, timing button 5, power-off protection unit, display screen 6,
Charging circuit 4 and USB connecting line, power-off protection unit, charging circuit 4 be all located in housing, and power-off protection unit includes controlling
Device 1, relay 3, timer 2, controller 1 is connected to timer 2 and display screen 6, and timing button 5 is located on housing, meter
Time button 5 connection timer 2, housing is provided with USB interface, and charging circuit 4 is connected by USB interface USB connecting line, charged electrical
Road 4 is connected by relay 3 has civil power, relay 3 to be also associated with controller 1.
Embodiment is by arranging relay 3 between the connection of charging circuit 4 and civil power, and controls to continue by controller 1
Electrical equipment 3 realizes the disconnection after arriving the setting time of charging circuit 4 and civil power.It can be avoided that do not pull out at charger for mobile phone
Work long hours in the case of Xia, and the potential safety hazard existed.
This kind of charger for mobile phone, it is possible to be automatically obtained the disconnection of charging circuit 4 and civil power.It is capable of the power-off of charger
Protection, the safety in utilization of intensified charging device, it is to avoid charger works long hours and the safety such as too fast damage or generation spontaneous combustion is the most hidden
Suffer from.And after a loss of power, due to charger not in continuous firing, it is possible to realize certain energy-conservation.
Automatically power off process particularly as follows: when starting to charge up, after timing button 5 is pressed, timer 2 starts timing,
When the time of setting arrives, controller 1 sends power down control signal to relay 3, and relay 3 is by charging circuit 4 and civil power
Connect and disconnect；The timing of timer 2 is shown by display screen 6.
Such as Fig. 2, charging circuit 4 include transformator T1, diode D1, electrochemical capacitor C1, resistance R1, resistance R2, resistance R3,
Electric capacity C2, diode D2, diode D3, audion Q1, audion Q2, resistance R4, electrochemical capacitor C3, diode D4, stabilivolt
ZD1, resistance R5, electric capacity C4, diode D5, electrochemical capacitor C5；The positive pole of diode D1 connects has the positive pole of charging circuit 4 to access
End, the negative pole of diode D1 is connected to one end of the primary side winding of the positive pole of electrochemical capacitor C1, transformator T1, transformator T1
The other end of primary side winding be connected to the positive pole of diode D2, the colelctor electrode of audion Q1, the negative pole of diode D2 leads to
Crossing the negative pole that electric capacity C2 connects diode D1, electric capacity C2 is parallel with resistance R3, and the negative pole of diode D1 is also by resistance R2 respectively
The base stage of connecting triode Q1, the colelctor electrode of audion Q2, the emitter stage of audion Q1 is connected to transformation by resistance R4
Feedback one end of winding, the positive pole of electrochemical capacitor C3, the emitter stage of audion Q2, the negative pole of electrochemical capacitor C1 of device T1, transformation
The other end of the feedback winding of device T1 connects the negative pole having diode D4, and the emitter stage of audion Q1 is also associated with diode D3's
Positive pole, the negative pole of diode D3 connects the base stage having audion Q2；The negative pole of electrochemical capacitor C3 is just connecting diode D4 respectively
Pole, the positive pole of stabilivolt ZD1, the negative pole of diode D4 passes sequentially through the negative pole that electric capacity C4, resistance R5 connect stabilivolt ZD1, surely
The negative pole of pressure pipe ZD1 is also associated with the base stage of audion Q1；The feedback winding of the negative pole connection transformer T1 of electrochemical capacitor C1
One end, the negative pole of electrochemical capacitor C1 connects the negative pole incoming end of charging circuit 4 also by resistance R1；The vice-side winding of transformator T1
One end connect the positive pole of diode D5, the negative pole of diode D5 is connected to the positive pole of electrochemical capacitor C5, charging circuit 4
Cathode output end, the other end of the vice-side winding of transformator T1 connects the negative pole of electrochemical capacitor C5, the negative pole of charging circuit 4 respectively
Outfan.
After civil power input, the input current of the positive pole incoming end of charging circuit 4 is through diode D1 halfwave rectifier, charged electrical
The negative pole incoming end on road 4, after resistance R1, is filtered by electrochemical capacitor C1.Through transformator T1 be added in audion Q1 colelctor electrode,
Emitter stage, civil power live wire is added in the base stage of audion Q1 through resistance R2, and resistance R2 provides starting current, and audion Q1 turns on；By
The feedback winding of transformator T1 makes audion Q2 turn on, and forces audion Q1 to end, and makes audion Q1 be in concussion state, transformation
The vice-side winding of device T1 obtains voltage output.
Diode D2, resistance R2, electric capacity C2 form peak absorbing loop and protect audion Q1, but audion Q1 is turned off
Time, it is responsible for the induced voltage on absorbing coil, thus prevents high pressure to be added to cause punch through on audion Q1.Audion Q1 is used for
Control the switching between primary side winding and the civil power of transformator T1.When the primary side winding ceaselessly break-make of transformator T1, will
In transformator T1, form the magnetic field of change, thus in the vice-side winding of transformator T1, produce induced voltage.
Diode D3 feeds back rectification, and resistance R5, electric capacity C4 provide conducting electric current for audion Q1, and stabilivolt ZD1 voltage stabilizing is protected
Protect audion Q1, audion Q2.
The resistance R4 that audion Q1 connects uses 10 Ω resistance, for current sampling resistor, becomes voltage after electric current is sampled,
This voltage, after diode D3, adds in the base stage of audion Q2.When sampling voltage is approximately greater than 1.4V, i.e. audion Q1 electric current
During more than 0.14A, audion Q2 turns on, thus is dragged down by the base voltage of audion Q1, thus the colelctor electrode of audion Q1 is electric
Stream reduces, and forms constant current structure, thus limits the electric current of switch, prevent electric current excessive and burn, by audion Q1
Big electric current is limited in about 140mA.
The induced voltage rectified diode D3 rectification of the feedback winding of transformator T1, is formed anti-after electrochemical capacitor C3 filtering
Feedthrough voltage.Feedback voltage, after stabilivolt ZD1, adds to the base stage of audion Q1.When output voltage is the highest, then feedback electricity
Pressing the most negative, after bearing to a certain extent, stabilivolt ZD1 is breakdown, thus the base potential of audion Q1 is dragged down, and this will lead
Cause the conducting that audion Q1 disconnects or postpones switch, thus control energy input in transformator T1, the most just control defeated
Go out the rising of voltage, it is achieved that the function of voltage stabilizing output.
Transformator T1 feedback winding connect resistance R5 with series connection electric capacity C4, then be positive feedback branch, from feedback around
Group is taken out induced voltage, is added in the base stage of audion Q1, to maintain vibration.
The vice-side winding of transformator T1, exports the voltage of 6V after diode D5 rectification, electrochemical capacitor C5 filtering.
Claims (2)
1. one kind automatically powers off charger for mobile phone, it is characterised in that: include housing, timing button, power-off protection unit, display
Screen, charging circuit and USB connecting line, power-off protection unit, charging circuit be all located in housing, and power-off protection unit includes controlling
Device, relay, timer, controller is connected to timer and display screen, and timing button is located on housing, and timing button is even
Connecing timer, housing is provided with USB interface, and charging circuit is connected by USB interface USB connecting line, and charging circuit passes through relay
Device connects has civil power, relay to be also associated with controller.
Automatically power off charger for mobile phone the most as claimed in claim 1, it is characterised in that: charging circuit include transformator T1, two
Pole pipe D1, electrochemical capacitor C1, resistance R1, resistance R2, resistance R3, electric capacity C2, diode D2, diode D3, audion Q1, three poles
Pipe Q2, resistance R4, electrochemical capacitor C3, diode D4, stabilivolt ZD1, resistance R5, electric capacity C4, diode D5, electrochemical capacitor C5；
The positive pole of diode D1 connects the positive pole incoming end having charging circuit, and the negative pole of diode D1 is connected to electrochemical capacitor C1's
Positive pole, one end of primary side winding of transformator T1, the other end of the primary side winding of transformator T1 is connected to diode D2's
Positive pole, the colelctor electrode of audion Q1, the negative pole of diode D2 connects the negative pole of diode D1 by electric capacity C2, and electric capacity C2 is parallel with
Resistance R3, the negative pole of diode D1 is also by resistance the R2 base stage of connecting triode Q1, the colelctor electrode of audion Q2, three poles respectively
The emitter stage of pipe Q1 by resistance R4 be connected to transformator T1 feedback one end of winding, the positive pole of electrochemical capacitor C3, three
The emitter stage of pole pipe Q2, the negative pole of electrochemical capacitor C1, the other end of the feedback winding of transformator T1 connects bearing of diode D4
Pole, the emitter stage of audion Q1 is also associated with the positive pole of diode D3, and the negative pole of diode D3 connects the base stage having audion Q2；
The negative pole of electrochemical capacitor C3 connects the positive pole of diode D4, the positive pole of stabilivolt ZD1 respectively, and the negative pole of diode D4 passes sequentially through
Electric capacity C4, resistance R5 connect the negative pole of stabilivolt ZD1, and the negative pole of stabilivolt ZD1 is also associated with the base stage of audion Q1；Electrolysis electricity
Holding one end of the feedback winding of the negative pole connection transformer T1 of C1, the negative pole of electrochemical capacitor C1 connects charged electrical also by resistance R1
The negative pole incoming end on road；One end of the vice-side winding of transformator T1 connects the positive pole of diode D5, and the negative pole of diode D5 is respectively
Connecting the cathode output end having the positive pole of electrochemical capacitor C5, charging circuit, the other end of the vice-side winding of transformator T1 connects respectively
Connect the cathode output end of the negative pole of electrochemical capacitor C5, charging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973268.3U CN205882733U (en) | 2015-11-30 | 2015-11-30 | Automatic outage cell -phone charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973268.3U CN205882733U (en) | 2015-11-30 | 2015-11-30 | Automatic outage cell -phone charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205882733U true CN205882733U (en) | 2017-01-11 |
Family
ID=57687884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520973268.3U Active CN205882733U (en) | 2015-11-30 | 2015-11-30 | Automatic outage cell -phone charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205882733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449749A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | APO (Automatic Power Off) phone charger |
| CN107895979A (en) * | 2017-11-22 | 2018-04-10 | 汪孝 | A kind of intelligent mobile phone charger |
-
2015
- 2015-11-30 CN CN201520973268.3U patent/CN205882733U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449749A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | APO (Automatic Power Off) phone charger |
| CN107895979A (en) * | 2017-11-22 | 2018-04-10 | 汪孝 | A kind of intelligent mobile phone charger |
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