CN201230224Y

CN201230224Y - Automatic power-off apparatus for charger

Info

Publication number: CN201230224Y
Application number: CNU2008201047753U
Authority: CN
Inventors: 祝志强; 袁龙德; 苗竹林
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-21
Filing date: 2008-04-21
Publication date: 2009-04-29
Anticipated expiration: 2018-04-21

Abstract

The utility model relates to an automatic power-off device for a charger, which aims at providing a device for the automatic power-off after the charging of the charger is finished. The automatic power-off device comprises a voltage reduction rectifying relay, a photoelectric detection relay, a current amplification drive relay, a pulse relay and a switch. The automatic power-off device is directly connected with 220V AC commercial power, the AC input end of the charger is connected with the controlled output port of the device, and voltage signals are taken out from the charge full indicator lamp of the charger to access to the information-detecting input port of the device. When the charge-full indicator lamp is lightened up and then the voltage signals are fed back to the device, and the device controls and cuts off the AC input power of the charger. The utility model is simple in structure, saves energy, and is suitable for the common people to use.

Description

A kind of charger auto-power-off device

Affiliated technical field

The utility model is a kind of charger field that relates to, particularly a kind of charger device of outage automatically that can allow.

Background technology

Present all kinds of chargers all are to charge electricity to need artificial going that plug is pulled out the loss that just can stop electricity, and the somebody fails in time to pull out plug after charging, make the limited resources of society produce waste greatly.

Summary of the invention

The purpose of this utility model is to be to provide a kind of device that can allow charger cut off the electricity supply voluntarily after charging electricity, its feature is amplified driving, time pulse relay by step-down rectifier, Photoelectric Detection, electric current, switch disconnects the alternating current input power supplying of charger, thereby plays the energy-conservation effect of outage.

The utility model charging auto-power-off device, after the 220v alternating current is connected in input, the not work of charger because time pulse relay does not have adhesive, this moment, alternating current passed through C1, the R1 step-down, obtain a low-voltage dc voltage after the D1 rectification, when pressing the button, low-voltage dc voltage is added to the time pulse relay trigger end, the counter-rotating that is triggered of the state of time pulse relay, and make the closing of contact, behind the release button, time pulse relay continues to keep attracting state, this moment, charger obtained starting working after the input 220V AC power, output dc voltage charges to battery pack, after battery pack is full of electricity, the full state indicator light lights, the luminous tube that be connected in parallel on the photoelectrical coupler inside at indicator light two ends this moment also has electric current to flow through, and make the phototriode conducting of photoelectrical coupler inside, amplify to drive the existing electric current of base stage at electric current this moment and flow through, this electric current through electric current amplify drive amplify after, the trigger impulse relay, thereby the time pulse relay state is reversed once more, the time pulse relay contact disconnects, and has promptly cut off the alternating current input power supplying of charger, has reached the purpose of auto-power-off energy-saving.

Description of drawings:

Fig. 1 is the structural representation of the utility model device in application

Fig. 2 is the utility model internal circuit diagram

Embodiment

As shown in Figure 1, the utility model (JDQ) directly inserts the 220V electric main, the ac input end of charger is connected to the controlled output port of this device, take out voltage signal from the full state indicator light of charger, receive this Device Testing information input terminal mouth, light existing voltage signal and feed back to this device when being full of indicator light, this device start to control disconnect charger alternating current input power supplying.

As shown in Figure 2, after the 220v alternating current is connected in input, the not work of charger because time pulse relay (MCJ) does not have adhesive, this moment, alternating current passed through C1, the R1 step-down, obtain a low-voltage dc voltage after the D1 rectification, when pressing the button (AN), low-voltage dc voltage is added to time pulse relay (MCJ) trigger end, the counter-rotating that is triggered of the state of time pulse relay (MCJ), and make the closing of contact, behind the release button, time pulse relay (MCJ) continues to keep attracting state, charger this moment (CDQ) has obtained starting working after the input 220V AC power, output dc voltage charges to battery pack (U), after battery pack (U) is full of electricity, full state indicator light (LED) lights, the inner luminous tube of photoelectrical coupler (Q2) that is connected in parallel on indicator light (LED) two ends this moment also has electric current to flow through, and make the inner phototriode conducting of photoelectrical coupler (Q2), amplifying the existing electric current of driving (Q1) base stage at electric current this moment flows through, this electric current is after electric current amplifies driving (Q1) amplification, trigger impulse relay (MCJ), thereby time pulse relay (MCJ) state is reversed once more, time pulse relay (MCJ) contact disconnects, promptly cut off the alternating current input power supplying of charger (CDQ), reached the purpose of auto-power-off energy-saving.

Then play the effect of manually listening worm if press the button (AN) in the utility model device busy process, and owing to used time pulse relay (MCJ), time pulse relay in the course of work (MCJ) does not have electric current to flow through, and increases power consumption in the course of work charger (CDQ).

Claims

1, a kind of novel charger auto-power-off device, it is made of shell and the electronic circuit that is installed in shell, it is characterized in that said electronic circuit comprises the resistance-capacitance depressurization rectifier power source of input AC civil power at least, be connected electric current with the output of resistance-capacitance depressurization rectifier power source and amplify driving tube, amplify the time pulse relay that the driving tube collector electrode is connected with electric current, amplify the photoelectricity coupling circuit that the gas base stage is connected with electric current.

2, according to the described charger auto-power-off device of claim 1, it is characterized in that introducing in the said resistance-capacitance depressurization rectification circuit socket of 220V electric main, the electric capacity that is connected with socket, the resistance that is connected with the electric capacity other end, the rectifier diode that is connected with the resistance other end, the electric current that is connected with the rectifier diode negative pole amplifies driving tube, the photoelectricity coupling circuit that is connected with current drives pipe base stage, with the time pulse relay that the current drives pipe collector is connected, the time pulse relay other end links to each other with the electric main socket other end.