CN204696948U

CN204696948U - A kind of voltage-statilizing socket circuit

Info

Publication number: CN204696948U
Application number: CN201520346115.6U
Authority: CN
Inventors: 不公告发明人
Original assignee: Permanent Electronic Science And Technology Co Ltd Of Suzhou Welfare
Current assignee: Permanent Electronic Science And Technology Co Ltd Of Suzhou Welfare
Priority date: 2015-05-26
Filing date: 2015-05-26
Publication date: 2015-10-07
Anticipated expiration: 2025-05-26

Abstract

The utility model discloses a kind of voltage-statilizing socket circuit, comprise chip U1, chip U2, rectifier bridge Q, transformer T, fuse FU and relay K 1.The utility model voltage-statilizing socket circuit line voltage too high and too low time (higher than 240V or lower than 170V) can both by voltage stabilization at about 220V, and circuit structure is simple, cost is low, and volume is little, only need be integrated in common socket, be applicable to very much promoting the use of.

Description

A kind of voltage-statilizing socket circuit

Technical field

The utility model relates to a kind of socket, specifically a kind of voltage-statilizing socket circuit.

Background technology

The current mountain area remote in China and rural area; line voltage extremely unstable, and voltage is generally on the low side, and some line voltages only have about 120V; in such electrical network; household electrical appliance all normally cannot use and can damage appliance life greatly, though market there is more pressurizer, use effect and not so well; and price is higher; volume is comparatively large, the effect that present market has a lot of smart jack can play over-and under-voltage automatically to protect, but seldom has the socket of band voltage stabilizing function.

Utility model content

The purpose of this utility model is to provide the voltage-statilizing socket circuit that a kind of structure is simple, cost is low, 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 voltage-statilizing socket circuit, comprise chip U1, chip U2, rectifier bridge Q, transformer T, fuse FU and relay K 1, described fuse FU one end connects 220V alternating current one end, the fuse FU other end is gang socket B one end and transformer T coil L1 one end respectively, the transformer T coil L1 other end is connection transformer T coil L2 respectively, relay K 1 contact K1-1 pin 1 and the 220V alternating current other end, the described socket B other end connects relay K 1 contact K1-1 pin 3, relay K 1 contact K1-1 pin 2 connects relay K 2 contact K2-1 pin 3, relay K 2 contact K2-1 pin 1 is the connection transformer T coil L2 other end and transformer T coil L3 respectively, the transformer T coil L3 other end connects relay K 2 contact K2-1 pin 2, transformer T coil L4 two ends are connected respectively rectifier bridge Q pin 1 and pin 3, rectifier bridge Q pin 4 connects electric capacity C1 respectively, potentiometer RP1, potentiometer RP1 slide plate, potentiometer RP2, potentiometer RP2 slide plate, diode D3 positive pole, chip U2 pin 4, resistance R6 and triode VT2 emitter ground connection, triode VT2 base stage is the contact resistance R6 other end and resistance R5 respectively, the resistance R5 other end connects chip U2 pin 1, described triode VT2 collector electrode connects relay K 2 coil and diode D2 positive pole respectively, diode D2 negative pole connects the relay K 2 coil other end respectively, relay K 1 coil, diode D1 negative pole, chip U2 pin 8, ground capacity C2 and chip U1 pin 3, the relay K 1 coil other end connects diode D1 positive pole and triode VT1 collector electrode respectively, triode VT1 grounded emitter, triode VT1 base stage connects chip U2 pin 7 by resistance R4, chip U2 pin 2 is contact resistance R2 and the potentiometer RP2 other end respectively, chip U2 pin 3 connects chip U2 pin 5 respectively, resistance R3 and diode D3 negative pole, chip U2 pin 6 is contact resistance R1 and the potentiometer RP1 other end respectively, described chip U1 pin 2 ground connection, chip U1 pin 1 is the contact resistance R1 other end respectively, the resistance R2 other end, the resistance R3 other end, rectifier bridge Q pin 2 and the electric capacity C1 other end.

As further program of the utility model: described chip U1 model is 7805.

As the utility model further scheme: described chip U2 model is NE556.

Compared with prior art, the beneficial effects of the utility model are: the utility model voltage-statilizing socket circuit line voltage too high and too low time (higher than 240V or lower than 170V) can both by voltage stabilization at about 220V, and circuit structure is simple, cost is low, volume is little, only need be integrated in common socket, be applicable to very much promoting the use of.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of voltage-statilizing socket 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 voltage-statilizing socket circuit, comprise chip U1, chip U2, rectifier bridge Q, transformer T, fuse FU and relay K 1, fuse FU one end connects 220V alternating current one end, the fuse FU other end is gang socket B one end and transformer T coil L1 one end respectively, the transformer T coil L1 other end is connection transformer T coil L2 respectively, relay K 1 contact K1-1 pin 1 and the 220V alternating current other end, the socket B other end connects relay K 1 contact K1-1 pin 3, relay K 1 contact K1-1 pin 2 connects relay K 2 contact K2-1 pin 3, relay K 2 contact K2-1 pin 1 is the connection transformer T coil L2 other end and transformer T coil L3 respectively, the transformer T coil L3 other end connects relay K 2 contact K2-1 pin 2, transformer T coil L4 two ends are connected respectively rectifier bridge Q pin 1 and pin 3, rectifier bridge Q pin 4 connects electric capacity C1 respectively, potentiometer RP1, potentiometer RP1 slide plate, potentiometer RP2, potentiometer RP2 slide plate, diode D3 positive pole, chip U2 pin 4, resistance R6 and triode VT2 emitter ground connection, triode VT2 base stage is the contact resistance R6 other end and resistance R5 respectively, the resistance R5 other end connects chip U2 pin 1, triode VT2 collector electrode connects relay K 2 coil and diode D2 positive pole respectively, diode D2 negative pole connects the relay K 2 coil other end respectively, relay K 1 coil, diode D1 negative pole, chip U2 pin 8, ground capacity C2 and chip U1 pin 3, the relay K 1 coil other end connects diode D1 positive pole and triode VT1 collector electrode respectively, triode VT1 grounded emitter, triode VT1 base stage connects chip U2 pin 7 by resistance R4, chip U2 pin 2 is contact resistance R2 and the potentiometer RP2 other end respectively, chip U2 pin 3 connects chip U2 pin 5 respectively, resistance R3 and diode D3 negative pole, chip U2 pin 6 is contact resistance R1 and the potentiometer RP1 other end respectively, chip U1 pin 2 ground connection, chip U1 pin 1 is the contact resistance R1 other end respectively, the resistance R2 other end, the resistance R3 other end, rectifier bridge Q pin 2 and the electric capacity C1 other end.

Chip U1 model is 7805.

Chip U2 model is NE556.

Operation principle of the present utility model is: when 220 alternating current line voltages are normal, because chip U2 pin 3 place voltage is always 3V, chip U2 pin 2 and pin 6 place voltage are all greater than 3V, therefore chip U2 output low level, when line voltage declines, the voltage of chip U2 pin 5 and pin 6 also declines thereupon, when chip U2 pin 6 voltage drop is to during lower than 3V, chip U1 exports high level, makes triode VT1 saturation conduction, relay K 1 adhesive, by transformer T pressure regulation to stable;

Otherwise, if when voltage raises, chip U2 pin 2 voltage also increases, when chip U2 pin 2 voltage is higher than 3V, chip U2 output low level, VT2 ends, and relay K 2 discharges, by transformer T pressure regulation to stable; When line voltage continues to raise, chip U2 pin 6 voltage is higher than 3V, and chip U2 output low level, VT1 ends, and K1 discharges, by transformer T pressure regulation to stable.

Claims

1. a voltage-statilizing socket circuit, comprise chip U1, chip U2, rectifier bridge Q, transformer T, fuse FU and relay K 1, it is characterized in that, described fuse FU one end connects 220V alternating current one end, the fuse FU other end is gang socket B one end and transformer T coil L1 one end respectively, the transformer T coil L1 other end is connection transformer T coil L2 respectively, relay K 1 contact K1-1 pin 1 and the 220V alternating current other end, the described socket B other end connects relay K 1 contact K1-1 pin 3, relay K 1 contact K1-1 pin 2 connects relay K 2 contact K2-1 pin 3, relay K 2 contact K2-1 pin 1 is the connection transformer T coil L2 other end and transformer T coil L3 respectively, the transformer T coil L3 other end connects relay K 2 contact K2-1 pin 2, transformer T coil L4 two ends are connected respectively rectifier bridge Q pin 1 and pin 3, rectifier bridge Q pin 4 connects electric capacity C1 respectively, potentiometer RP1, potentiometer RP1 slide plate, potentiometer RP2, potentiometer RP2 slide plate, diode D3 positive pole, chip U2 pin 4, resistance R6 and triode VT2 emitter ground connection, triode VT2 base stage is the contact resistance R6 other end and resistance R5 respectively, the resistance R5 other end connects chip U2 pin 1, described triode VT2 collector electrode connects relay K 2 coil and diode D2 positive pole respectively, diode D2 negative pole connects the relay K 2 coil other end respectively, relay K 1 coil, diode D1 negative pole, chip U2 pin 8, ground capacity C2 and chip U1 pin 3, the relay K 1 coil other end connects diode D1 positive pole and triode VT1 collector electrode respectively, triode VT1 grounded emitter, triode VT1 base stage connects chip U2 pin 7 by resistance R4, chip U2 pin 2 is contact resistance R2 and the potentiometer RP2 other end respectively, chip U2 pin 3 connects chip U2 pin 5 respectively, resistance R3 and diode D3 negative pole, chip U2 pin 6 is contact resistance R1 and the potentiometer RP1 other end respectively, described chip U1 pin 2 ground connection, chip U1 pin 1 is the contact resistance R1 other end respectively, the resistance R2 other end, the resistance R3 other end, rectifier bridge Q pin 2 and the electric capacity C1 other end.

2. voltage-statilizing socket circuit according to claim 1, is characterized in that, described chip U1 model is 7805.

3. voltage-statilizing socket circuit according to claim 1, is characterized in that, described chip U2 model is NE556.