CN204497726U

CN204497726U - A kind of smart jack circuit

Info

Publication number: CN204497726U
Application number: CN201520258225.7U
Authority: CN
Inventors: 卓天真
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-19
Filing date: 2015-04-19
Publication date: 2015-07-22
Anticipated expiration: 2025-04-19

Abstract

The utility model discloses a kind of smart jack circuit, comprise chip U1, resistance R1, potentiometer RP1, diode D1, bidirectional triode thyristor VS and relay K.The utility model smart jack circuit can realize the automatic cut-off power when the outside bearing power connected exceedes set point, after because of excess load power-off, detect once every a few minutes, interval time is determined by the value of resistance R3 and electric capacity C4, drops to after setting, can restore electricity again until load, very convenient and practical, and circuit structure is simple, cost is lower, is applicable to promoting the use of.

Description

A kind of smart jack circuit

Technical field

The utility model relates to a kind of socket, specifically a kind of smart jack circuit.

Background technology

Along with popularizing of present electric equipment, to industrial and agricultural production, Defence business, science and technology brings revolutionary change, accelerate the development of society, people have stepped into Electrification Age, also make the quality of life of people obtain significantly to improve, also more and more these electric equipments are be unable to do without, along with the development of science and technology, the precision of electric equipment also improves gradually, there occurs earth-shaking change, people also get more and more for the demand of socket, but a lot of people does not know that socket has bearing power to limit, once bearing power exceedes the rated power of socket, great potential safety hazard can be produced, easy breaking out of fire accident, existing a lot of socket can when exceeding rated power automatic cut-off power, but but can not automatically reset.

Utility model content

The purpose of this utility model is the smart jack circuit providing the intelligent power-off of a kind of energy and reset, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme:

A kind of smart jack circuit, comprises chip U1, resistance R1, potentiometer RP1, diode D1, bidirectional triode thyristor VS and relay K, described chip U1 pin 1 is connection transformer T coil L2 respectively, potentiometer RP1, electric capacity C1, triode VT1 emitter, electric capacity C3, electric capacity C4, electric capacity C5, diode D4 positive pole, 220V alternating current one end and relay K contact switch K-1, chip U1 pin 5 connects the electric capacity C3 other end, chip U1 pin 3 contact resistance R2, the resistance R2 other end connects the G pole of bidirectional triode thyristor VS, A2 pole contact resistance R4 and the relay K coil respectively of bidirectional triode thyristor VS, the relay K coil other end connects electric capacity C6 respectively, resistance R3, the 220V alternating current other end and relay K contact switch K-2, described chip U1 pin 2 connects electric capacity C2 respectively, resistance R1 and triode VT1 collector electrode, chip U1 pin 4 connects chip U1 pin 8 respectively, resistance R1, resistance R5, the electric capacity C5 other end and diode D3 negative pole, diode D3 positive pole connects diode D4 negative pole and the electric capacity C6 other end respectively, and described chip U1 pin 6 connects chip U1 pin 7 respectively, the electric capacity C4 other end and the resistance R5 other end, the described resistance R4 other end connects electric capacity C7, the electric capacity C7 other end connects T1 pole and the electric capacity C2 other end of bidirectional triode thyristor VS respectively, and described triode VT1 base stage connects diode D2 positive pole, and diode D2 negative pole is the contact resistance R3 other end respectively, the electric capacity C1 other end and diode D1 negative pole, diode D1 positive pole connects potentiometer RP1 slide plate, the potentiometer RP1 other end connection transformer T coil L2 other end, transformer T coil L1 one end connects the relay K contact switch K-2 other end, transformer T coil L1 other end gang socket M, the socket M other end connects the relay K contact switch K-1 other end.

As the utility model further scheme: described chip U1 model is NE555.

Compared with prior art, the beneficial effects of the utility model are: the utility model smart jack circuit can realize the automatic cut-off power when the outside bearing power connected exceedes set point, after because of excess load power-off, detect once every a few minutes, interval time is determined by the value of resistance R3 and electric capacity C4, drop to after setting until load, can restore electricity again, very convenient and practical, and also circuit structure is simple, cost is lower, is applicable to promoting the use of.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of smart jack circuit.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1, in the utility model embodiment, a kind of smart jack circuit, comprises chip U1, resistance R1, potentiometer RP1, diode D1, bidirectional triode thyristor VS and relay K, chip U1 pin 1 is connection transformer T coil L2 respectively, potentiometer RP1, electric capacity C1, triode VT1 emitter, electric capacity C3, electric capacity C4, electric capacity C5, diode D4 positive pole, 220V alternating current one end and relay K contact switch K-1, chip U1 pin 5 connects the electric capacity C3 other end, chip U1 pin 3 contact resistance R2, the resistance R2 other end connects the G pole of bidirectional triode thyristor VS, A2 pole contact resistance R4 and the relay K coil respectively of bidirectional triode thyristor VS, the relay K coil other end connects electric capacity C6 respectively, resistance R3, the 220V alternating current other end and relay K contact switch K-2, chip U1 pin 2 connect electric capacity C2 respectively, resistance R1 and triode VT1 collector electrode, chip U1 pin 4 connects chip U1 pin 8 respectively, resistance R1, resistance R5, the electric capacity C5 other end and diode D3 negative pole, diode D3 positive pole connects diode D4 negative pole and the electric capacity C6 other end respectively, and chip U1 pin 6 connects chip U1 pin 7 respectively, the electric capacity C4 other end and the resistance R5 other end, the resistance R4 other end connects electric capacity C7, the electric capacity C7 other end connects T1 pole and the electric capacity C2 other end of bidirectional triode thyristor VS respectively, and triode VT1 base stage connects diode D2 positive pole, and diode D2 negative pole is the contact resistance R3 other end respectively, the electric capacity C1 other end and diode D1 negative pole, diode D1 positive pole connects potentiometer RP1 slide plate, the potentiometer RP1 other end connection transformer T coil L2 other end, transformer T coil L1 one end connects the relay K contact switch K-2 other end, transformer T coil L1 other end gang socket M, the socket M other end connects the relay K contact switch K-1 other end.

Chip U1 model is NE555.

Operation principle of the present utility model is: the utility model circuit comprises cutting load testing circuit, electronic switch, monostable timing circuit and control relay circuit, cutting load testing electricity routing transformer T, diode D1, electric capacity C1 and potentiometer RP1 forms, in order to the load condition of testing circuit, electronic switch comprises diode D2, triode VT1 and R1, its examined signal controlling, by chip U1 and resistance R3, the timing of the monostable timing circuit of the composition such as electric capacity C4 is t=1.1*R3*C4, when electricity consumption overloads, voltage stabilizing didoe D1 punctures, triode VT1 saturation conduction, chip U1 pin 2 current potential is that set occurs low level, the high level that chip U1 pin 3 exports makes controllable silicon VS conducting, relay K adhesive, contact K-1, K-2 disconnects, cut off alternating current 220V power supply, after timing, chip U1 output low level, corresponding K discharges, contact K-1, K-2 closes, power supply is connected, detect again, the utility model smart jack circuit can realize the automatic cut-off power when load exceedes, drop to after setting until load, can restore electricity again.

Claims

1. a smart jack circuit, comprises chip U1, resistance R1, potentiometer RP1, diode D1, bidirectional triode thyristor VS and relay K, is characterized in that, described chip U1 pin 1 is connection transformer T coil L2 respectively, potentiometer RP1, electric capacity C1, triode VT1 emitter, electric capacity C3, electric capacity C4, electric capacity C5, diode D4 positive pole, 220V alternating current one end and relay K contact switch K-1, chip U1 pin 5 connects the electric capacity C3 other end, chip U1 pin 3 contact resistance R2, the resistance R2 other end connects the G pole of bidirectional triode thyristor VS, A2 pole contact resistance R4 and the relay K coil respectively of bidirectional triode thyristor VS, the relay K coil other end connects electric capacity C6 respectively, resistance R3, the 220V alternating current other end and relay K contact switch K-2, described chip U1 pin 2 connects electric capacity C2 respectively, resistance R1 and triode VT1 collector electrode, chip U1 pin 4 connects chip U1 pin 8 respectively, resistance R1, resistance R5, the electric capacity C5 other end and diode D3 negative pole, diode D3 positive pole connects diode D4 negative pole and the electric capacity C6 other end respectively, and described chip U1 pin 6 connects chip U1 pin 7 respectively, the electric capacity C4 other end and the resistance R5 other end, the described resistance R4 other end connects electric capacity C7, the electric capacity C7 other end connects T1 pole and the electric capacity C2 other end of bidirectional triode thyristor VS respectively, and described triode VT1 base stage connects diode D2 positive pole, and diode D2 negative pole is the contact resistance R3 other end respectively, the electric capacity C1 other end and diode D1 negative pole, diode D1 positive pole connects potentiometer RP1 slide plate, the potentiometer RP1 other end connection transformer T coil L2 other end, transformer T coil L1 one end connects the relay K contact switch K-2 other end, transformer T coil L1 other end gang socket M, the socket M other end connects the relay K contact switch K-1 other end.

2. smart jack circuit according to claim 1, is characterized in that, described chip U1 model is NE555.