CN202217877U

CN202217877U - Multifunctional timing energy-saving security power socket

Info

Publication number: CN202217877U
Application number: CN2011201349609U
Authority: CN
Inventors: 吴敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2012-05-09
Anticipated expiration: 2021-04-29

Abstract

A multifunctional timing energy-saving security power socket comprises a timing control circuit, a safety control circuit and a power supply circuit. The multifunctional timing energy-saving security power socket has a multistage timing control function, a user can set a timing time according to needs, wherein the time range is divided into multi stages and adjustable from 3 minutes to 120 minutes. And the multifunctional timing energy-saving security power socket also comprises a short circuit, electric leakage and anti-electric shock protection circuit, once an accident such as the short circuit, the electric leakage and the electric shock occurs, the protection circuit can cut off the power immediately to perform protection. Therefore, the multifunctional timing energy-saving security power socket can play roles in timing energy saving, protecting personal safety, and preventing fire hazards when installed on a household AC (Alternating Current) circuit.

Description

The energy-conservation security supply socket of multi-functional timing

Technical field

The utility model relates to a kind of electronic circuit, and a kind of have regularly energy-conservation, as to have short circuit, electric leakage, an electrocution-proof protection effect energy-conservation security supply socket of multi-functional timing.

Background technology

The Along with people's growth in the living standard; Electric equipments such as television set, DVD, sound equipment constantly get among the family, and these household electrical appliance are under the situation that adopts remote-control closedown, and the idling consumption that accumulative total produces is very important; The also easy initiation fire of the long-time standby of household electrical appliance; In addition, because of also easy initiation fire of short circuit, electric leakage and human casualty accident, therefore; Design the energy-conservation security supply socket of a kind of multi-functional timing, to reach regularly energy-conservation, protect personal safety, to prevent the purpose that fire takes place.Do not see at present the report that the energy-conservation security supply socket of similar multi-functional timing is arranged as yet.

Summary of the invention

The utility model is intended to propose a kind of energy-conservation, as to have short circuit, electric leakage, electrocution-proof protection effect energy-conservation security supply socket of multi-functional timing that has regularly.The energy-conservation security supply socket of this multi-functional timing mainly is made up of timing control circuit and safety control circuit and power circuit.The positive pole of bridge rectifier output also links to each other with the 8. pin of voltage-stabiliser tube DW, resistance R 10, capacitor C 5, resistance R 13, VT5 and NE555 through resistance R 5 except that with filter capacitor C4 directly links to each other.The negative pole of bridge rectifier output links to each other with the emitter of filter capacitor C4, voltage-stabiliser tube DW, indicator light LED and triode VT4 simultaneously.The collector electrode of triode VT4 links to each other with 2 pin of resistance R 13 and NE555 simultaneously.One end of 220V AC power links to each other with a socket end wherein through relay K 1-2, coil L1, and the other end of 220V AC power links to each other with the other end of socket through relay K 1-1, coil L2.The end of coil L3 links to each other with the base stage of capacitor C 2 and triode VT1 simultaneously, and the other end of coil L3 links to each other with capacitor C 2, C3, resistance R 3, R4, R6 and diode VD5 simultaneously.The collector electrode of triode VT1 links to each other with the base stage of triode VT2 through resistance R 8.The collector electrode of triode VT2 links to each other with the base stage of triode VT3 through resistance R 11, and the collector electrode of triode VT3 links to each other with 4 pin of NE555.

The energy-conservation security supply socket of this multi-functional timing; It is provided with multistage timing controlled function; Time range from 3 minutes to 120 minutes the many retainings of branch adjustable, regularly adjust between below a that resistance is connected on VT5, b, after each timing resistor series connection; Divide retaining to regulate with band switch, timing circuit can cut off AC power after accomplishing regularly.The monostable circuit of being made up of NE555 and VT5, Rab and C6 is as timing control circuit, and the timing controlled time is by VT5, Rab and C6 decision.FET VT5 and Rab form a constant-current source circuit, and for timing capacitor C6 provides constant charging current, it is constant that the sort circuit structure can make charging current remain, and timing is more accurate.The size of constant-current source circuit output current through changing the resistance of Rab, can change the size of charging current by the resistance decision of Rab, has also just changed timing.The capacity of charging capacitor C6 selects lessly, and its electric leakage can be ignored, and the mode through constant current charge makes the timing accuracy of timing circuit that full guarantee arranged.

The energy-conservation security supply socket of this multi-functional timing when the needs timing, at first chooses timing through the selection of time switch, then presses start button SB1, and at this moment circuit obtains dc supply and gets into operating state.The power supply of 12V adds to C5 in the moment of start, and according to the characteristic of electric capacity, this powers up the base stage that the impulse current that is produced can add to VT4 suddenly, makes VT4 produce the conducting of moment and the pulse that produces a negative sense at its collector electrode.This negative-going pulse triggers monostable circuit and makes its upset, the 3 pin output high level of NE555, and relay K energising adhesive, with the circuit self-locking, circuit gets into timing process through contact K1-1.In the timing process, power supply charges to C6 through VT5, and when C6 charged to 2VDD/3, this voltage made the monostable circuit upset through 6 pin, and 3 pin become low level, and relay discharges, and power supply circuits are broken off.

The energy-conservation security supply socket of this multi-functional timing also is provided with short circuit, electric leakage and electrocution-proof protection circuit, in case be short-circuited, leak electricity and the electric shock situation, cuts off the electricity supply immediately and protects.The ZCT that anticreep and protection against electric shock part is made up of L1～L3 and form by the control circuit that VT1～VT3 etc. forms.Under normal circumstances, L1 equates with the electric current that L2 passes through in the ZCT, is cancelled out each other by the magnetic induction that coil produces, and does not have induced current to produce among the L3.Therefore, VT1 is by ending VT2, and VT2 is by again VT3 being ended.The VT3 collector electrode is output as high level, and this high level adds to reset terminal 4 pin of NE555, and the monostable trigger-action circuit reset response is disengaged, and monostable circuit is in normal operating conditions.Under circuit is in definition status, if electric leakage takes place or when getting an electric shock, ZCT is disequilibrium immediately; Can produce induced voltage among the L3, the positive half cycle of this induced voltage adds to the base stage of VT1, makes VT1 conducting immediately; And making the VT2 conducting, the conducting of VT2 makes the VT3 conducting again.In low level, monostable circuit is forced and resets with the reset terminal 4 pin clampers of NE555 in the conducting of VT3.3 pin become low level discharges relay, has cut off power supply through K1-1 and K1-2, has eliminated accident.In the L3 of ZCT circuit, the effect of R6, VD5, R4, R3 is the static bias voltage that an about 0.42V is provided for VT1, so as VT1 conducting in time when taking place to get an electric shock, the protective effect of accelerating circuit.

The beneficial effect of the utility model is: the energy-conservation security supply socket of this multi-functional timing; It is provided with multistage timing controlled function, time range from 3 minutes to 120 minutes the many retainings of branch adjustable, can control operating time of electrical appliance easily; When eliminating electric equipment standby such as television set, sound equipment, DVD to the consumption of electric energy; Reach energy-conservation purpose, in addition also be provided with short circuit, electric leakage and electrocution-proof protection circuit, in case be short-circuited, leak electricity and the electric shock situation; Cut off the electricity supply immediately and protect, can prevent the generation of fire and human casualty accident.

Description of drawings

Accompanying drawing is the structure principle chart of the energy-conservation security supply socket of this multi-functional timing.

Embodiment

As shown in the figure, the energy-conservation security supply socket of this multi-functional timing mainly is made up of timing control circuit and safety control circuit and power circuit.

Claims

1. energy-conservation security supply socket of multi-functional timing; It is characterized in that whole circuit mainly is made up of timing control circuit, safety control circuit and power circuit three parts; It is characterized in that positive pole that it also comprises the bridge rectifier output is except that with filter capacitor C4 directly links to each other; Also link to each other with 8 pin of voltage-stabiliser tube DW, resistance R 10, capacitor C 5, resistance R 13, VT5 and NE555 through resistance R 5; The negative pole of bridge rectifier output links to each other with the emitter of filter capacitor C4, voltage-stabiliser tube DW, indicator light LED and triode VT4 simultaneously; The collector electrode of triode VT4 links to each other with 2 pin of resistance R 13 and NE555 simultaneously; One end of 220V AC power links to each other with a socket end wherein through relay K 1-2, coil L1, and the other end of 220V AC power links to each other with the other end of socket through relay K 1-1, coil L2, and the end of coil L3 links to each other with the base stage of capacitor C 2 and triode VT1 simultaneously; The other end of coil L3 links to each other with capacitor C 2, C3, resistance R 3, R4, R6 and diode VD5 simultaneously; The collector electrode of triode VT1 links to each other with the base stage of triode VT2 through resistance R 8, and the collector electrode of triode VT2 links to each other with the base stage of triode VT3 through resistance R 11, and the collector electrode of triode VT3 links to each other with 4 pin of NE555.

2. the energy-conservation security supply socket of multi-functional timing as claimed in claim 1 is characterized in that it also comprises to be provided with multistage timing controlled function that time range is adjustable to retaining more than 120 minutes from 3 minutes; Regularly adjust between below a that resistance is connected on VT5, b; After each timing resistor series connection, divide retaining to regulate with band switch, timing circuit can cut off AC power after accomplishing regularly; The monostable circuit of being made up of NE555 and VT5, Rab and C6 is as timing control circuit; The timing controlled time, FET VT5 and Rab formed a constant-current source circuit, for timing capacitor C6 provides constant charging current by VT5, Rab and C6 decision.

3. the energy-conservation security supply socket of multi-functional timing as claimed in claim 1; It is characterized in that it also comprises is provided with short circuit, electric leakage and electrocution-proof protection circuit; In case be short-circuited, leak electricity and the electric shock situation; Cut off the electricity supply immediately and protect, the ZCT that anticreep and protection against electric shock part is made up of L1～L3 and form by the control circuit that VT1～VT3 forms.