CN201975637U

CN201975637U - Household power failure alarming and electric appliance protecting power supply socket

Info

Publication number: CN201975637U
Application number: CN2010205238761U
Authority: CN
Inventors: 吴敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-10
Filing date: 2010-09-10
Publication date: 2011-09-14
Anticipated expiration: 2020-09-10

Abstract

The utility model relates to a household failure alarming and electric appliance protecting power supply socket, which comprises an optical coupling power supply stopping signal transmission circuit, a power failure informing trigger and delay power supply control circuit, a power failure voice informing circuit and a power supply circuit, wherein one output end of an optical coupling IC1 is connected with a pin 4 and a pin 8 of an R4 and an IC2, the collector of a triode VT1, an LED (Light-emitting diode) 1, a horn and an SA simultaneously, and the other output end of the optical coupling IC1 is directly connected with a pin 2 of the IC2. When the household failure alarming and electric appliance protecting power supply socket is arranged on a household AC (Alternating Current) circuit, and when the circuit is subject to power failure, a voice alarming signal of 'please attention, power is failed' is timely given out to remind a user to make necessary protection measures to certain electric appliances; and when power is on after the power failure, no power is immediately supplied by a power supply socket, but the power is normally supplied by the power supply socket after being delayed for about six minutes, so that the condition that certain electric appliances can be damaged due to the temporary power failure and then the immediate power on is avoided.

Description

Family expenses have a power failure and report to the police and the electric prospection supply socket

Technical field

The utility model relates to a kind of electronic circuit, a kind of power failure warning and electric prospection supply socket that is used on the domestic power supply circuit.

Background technology

The situation of sending a telegram here immediately again behind temporary transient the power failure in the electrical network happens occasionally, and this situation may cause bigger infringement to some electrical equipment such as refrigerator, air-conditionings.Therefore, design a kind of family expenses power failure and report to the police and the electric prospection supply socket,, have not yet to see the report of family expenses power failure warning and electric prospection supply socket to protect some household electrical appliance.

Summary of the invention

The utility model is intended to propose a kind of family expenses power failure warning and the electric prospection supply socket that can protect household electrical appliance.

This family expenses have a power failure and report to the police and the electric prospection supply socket comprises that optical coupling stops sending the electrical signal transfer circuit, has a power failure to notify and trigger and time-delay power supply control system circuit, power failure voice notify circuit and power circuit.Optical coupling stops sending the electrical signal transfer circuit to be made up of capacity voltage dropping circuit, bridge rectifier, filter circuit of pressure-stabilizing and optically coupled circuit.The rectification of the bridge rectifier that the 220V AC power is formed through decompression capacitor C1 step-down with by VD1～VD4, and after the filter circuit of pressure-stabilizing voltage stabilizing of DW1 and C2, C3 composition, the D.C. regulated power supply of output 12V, the signal that this stabilized voltage power supply has a power failure and powers as circuit, be delivered to triggering and the time-delay power-supplying circuit of notifying that have a power failure by an optical coupler 4N25, as its control signal.The positive pole of bridge rectifier output is except that with C2 directly links to each other, also by R1 while and voltage-stabiliser tube DW1, capacitor C 2, C3, the end of R2 links to each other, the other end of R2 links to each other with the input of photoelectrical coupler IC1, the negative pole while and the earth connection E of bridge rectifier output, capacitor C 2, C3, another input of the other end of voltage-stabiliser tube DW1 and photoelectrical coupler IC1 links to each other, output of photoelectrical coupler IC1 simultaneously and R4,4 pin of IC2,8 pin, the collector electrode of triode VT1, LED 1, loudspeaker and SA link to each other, another output of photoelectrical coupler IC1 is except that with 2 pin of IC2 directly are connected, also by R3 simultaneously and capacitor C 4, C5,1 pin of IC2, the coil of relay K, diode VD5, voltage-stabiliser tube DW2, the Vss of IC3, the negative pole of the emitter of triode VT3 and 6V power supply links to each other.

This family expenses power failure warning and electric prospection supply socket are installed on the AC power of family expenses 220V; compositions such as 4N25, NE555 and R4, C4 and VT1 and relay K have a power failure to notify and trigger and the time-delay power-supplying circuit, and wherein NE555 and R4, C4 form the monostable time delay circuit.Under the situation of normal power supply, owing to optical coupler 4N25 is powered normally, inner lumination of light emitting diode, the phototriode to inside transmits power supply signal, makes the phototriode conducting.By the 6V dc supply by phototriode add to NE555 2. the voltage on the pin for greater than V _DD/ 3 high level.At this moment monostable circuit is in stable state, the 3. pin output low level of NE555, and the subsequent conditioning circuit that is connected with it is not worked because of no working power.

This family expenses have a power failure and report to the police and the electric prospection supply socket, and after power supply had a power failure, the light-emitting diode among the 4N25 stopped luminously because of the power supply of losing the job, and the phototriode of inside ends.At this moment, the 2. pin of NE555 is lower than V because of phototriode by becoming _DD/ 3 low level, monostable circuit is triggered and overturns, and its 3. pin becomes high level.This high level is near supply voltage 6V, and adding to relay driving tube VT1 makes its conducting on the one hand, relay K energising back adhesive, and its normally-closed contact K1-1 will stop to send the power supply circuits of electrical signal transfer circuit to cut off, and make control circuit enter the time-delay state of a control; Pass through the current limliting of R5, the voltage stabilizing of DW2 on the other hand, 6V voltage is become 3.5V, to adapt to the notify need of work of circuit HFC520 of voice.3.5V working power directly add on the one hand the power end V of HFC520 _DDAdd to its trigger end 0SC on the other hand again by R6, making has a power failure, and the circuit of notifying sends the voice signal of " note that the power supply failed ", and amplifies the back by VT2, VT3 and emitted by loud speaker.

This family expenses have a power failure and report to the police and the electric prospection supply socket, and after power supply entered power down mode, monostable circuit disconnected K1-1 by driving the adhesive of relay K.Meanwhile, the time-delay power-supplying circuit also enters the time-delay state, and the time-delay power-supplying circuit also enters the time-delay state, and the length of delay time determines by T=1.1R4C4, these family expenses have a power failure report to the police and the electric prospection supply socket on about 6 minutes.If power up power supply in back 6 minutes of power failure, then the temporary stable state because of monostable circuit does not finish, and the contact K1-1 of relay fails closure, and supply socket can not restore electricity.

The beneficial effects of the utility model are: can overcome the infringement that may cause some electrical equipment such as refrigerator, air-conditionings when sending a telegram here immediately again behind temporary transient the power failure in the electrical network, can protect these class household electrical appliance effectively.

Description of drawings

Accompanying drawing is the structure principle chart of this family expenses power failure warning and electric prospection supply socket.

Embodiment

As shown in the figure, this family expenses have a power failure and report to the police and the electric prospection supply socket comprises that optical coupling stops sending the telecommunications transfer circuit, has a power failure to notify and trigger and time-delay power supply control system circuit, power failure voice notify circuit and power circuit.Optical coupling stops sending the electrical signal transfer circuit to be made up of capacity voltage dropping circuit, bridge rectifier, filter circuit of pressure-stabilizing and optically coupled circuit.The rectification of the bridge rectifier that the 220V AC power is formed through decompression capacitor C1 step-down with by VD1～VD4, and after the filter circuit of pressure-stabilizing voltage stabilizing of DW1 and C2, C3 composition, the D.C. regulated power supply of output 12V, the signal that this stabilized voltage power supply has a power failure and powers as circuit, be delivered to triggering and the time-delay power-supplying circuit of notifying that have a power failure by an optical coupler 4N25, as its control signal.

This family expenses have a power failure and report to the police and the electric prospection supply socket, and after power supply had a power failure, the light-emitting diode among the 4N25 stopped luminously because of the power supply of losing the job, and the phototriode of inside ends.At this moment, the 2. pin of NE555 is lower than V because of phototriode by becoming _DD/ 3 low level, monostable circuit is triggered and overturns, and its 3. pin becomes high level.This high level is near supply voltage 6V, and adding to relay driving tube VT1 makes its conducting on the one hand, relay K energising back adhesive, and its normally-closed contact K1-1 will stop to send the power supply circuits of electrical signal transfer circuit to cut off, and make control circuit enter the time-delay state of a control; Pass through the current limliting of R5, the voltage stabilizing of DW2 on the other hand, 6V voltage is become 3.5V, to adapt to the notify need of work of circuit HFC520 of voice.3.5V working power directly add on the one hand the power end V of HFC520 _DDAdd to its trigger end OSC on the other hand again by R6, making has a power failure, and the circuit of notifying sends the voice signal of " note that the power supply failed ", and amplifies the back by VT2, VT3 and emitted by loud speaker.

Claims

1. a family expenses power failure is reported to the police and the electric prospection supply socket; it is characterized in that integrated circuit stops sending the telecommunications transfer circuit by optical coupling; having a power failure notifies triggers and time-delay power supply control system circuit; the power failure voice compositions such as circuit and power circuit of notifying; its feature also comprises: the positive pole of bridge rectifier output is except that with C2 directly links to each other; also by R1 while and voltage-stabiliser tube DW1; capacitor C 2; C3; the end of R2 links to each other; the other end of R2 links to each other with the input of photoelectrical coupler IC1; the negative pole while and the earth connection E of bridge rectifier output; capacitor C 2; C3; another input of the other end of voltage-stabiliser tube DW1 and photoelectrical coupler IC1 links to each other; output of photoelectrical coupler IC1 simultaneously and R4; 4 pin of IC2; 8 pin; the collector electrode of triode VT1; LED 1; loudspeaker and SA link to each other; another output of photoelectrical coupler IC1 is except that with 2 pin of IC2 directly are connected, also by R3 simultaneously and capacitor C 4; C5; 1 pin of IC2; the coil of relay K; diode VD5; voltage-stabiliser tube DW2; the Vss of IC3; the negative pole of the emitter of triode VT3 and 6V power supply links to each other.

2. family expenses as claimed in claim 1 have a power failure and report to the police and the electric prospection supply socket; it is characterized in that optical coupling stops sending the electrical signal transfer circuit to be made up of capacity voltage dropping circuit, bridge rectifier, filter circuit of pressure-stabilizing and optically coupled circuit; form bridge rectifier by decompression capacitor C1 and rectification two utmost point VD1～VD4, form filter circuit of pressure-stabilizing by DW1 and C2, C3.

3. family expenses as claimed in claim 1 have a power failure and report to the police and the electric prospection supply socket; an input that it is characterized in that photoelectrical coupler IC1 links to each other with resistance R 2; another input links to each other with capacitor C 2, C3; the notify collector electrode of 4 pin, 8 pin and triode VT1 of IC circuit 3 of output of described photoelectrical coupler IC1 and resistance R 4, voice links to each other, and notify 2 pin of IC circuit 3 of another output and R3, voice link to each other.

4. family expenses as claimed in claim 1 have a power failure and report to the police and the electric prospection supply socket; it is characterized in that IC1; IC2 and R4; compositions such as C4 and VT1 and relay K have a power failure to notify and trigger and the time-delay power-supplying circuit; wherein IC2 and R4; C4 forms the monostable time delay circuit; described monostable time delay circuit; R4; the end while of C4 and 6 pin of IC2; 7 pin link to each other; the other end of R4 respectively with 4 pin of IC2; 8 pin link to each other, the other end of C4 simultaneously respectively with 1 pin of IC2; C5; one end of relay K coil and diode VD5; voltage-stabiliser tube DW2; the notify Vss of IC circuit 3 of voice; the emitter of triode VT3 links to each other.

5. family expenses as claimed in claim 1 have a power failure and report to the police and the electric prospection supply socket, it is characterized in that two outputs of optical coupler IC1, one with IC2 the 2. pin link to each other, another while and IC2 the 4., the 8. pin link to each other.

6. family expenses as claimed in claim 1 have a power failure and report to the police and the electric prospection supply socket; it is characterized in that IC2 the 3. pin directly link to each other on the one hand with the base stage of the driving tube VT1 of relay K, remove on the other hand and pass through behind the current-limiting resistance R5 and the notify power end V of IC circuit 3 of voice _DDAnd beyond TRIG links to each other, also add to the notify trigger end OSC of IC circuit 3 of voice simultaneously by R6.

7. family expenses as claimed in claim 1 have a power failure and report to the police and the electric prospection supply socket, it is characterized in that the notify output O/P of IC circuit 3 of voice links to each other with the base stage of power amplification triode VT2, and the emitter of triode VT2 links to each other with the base stage of triode VT3.