CN103517487B

CN103517487B - A kind of LED street lamp of timing automatic pressure regulation/light

Info

Publication number: CN103517487B
Application number: CN201210200175.8A
Authority: CN
Inventors: 黄焕珠
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-18
Filing date: 2012-06-18
Publication date: 2016-10-05
Anticipated expiration: 2032-06-18
Also published as: CN103517487A

Abstract

A kind of LED street lamp of timing automatic pressure regulation (light), its feature is: the circuit structure of LED street lamp is by working main circuit and timer circuit two parts form, LED street lamp from start working the timing setting time to a period of time in, LED street lamp facilitates vehicle and pedestrian to walk on related road with vehement bright illumination operating mode；And in the time period after the timing of timer arrives, then by the partition capacitance in the automatic control circuit excision capacitance-resistance voltage reduction circuit of timer, thus decrease the part operating current of LED street lamp, LED street lamp is allowed to be operated in the operating mode of low-voltage, LED street lamp is made to escape the harm that the extra-high pressure of circuit causes, part electric energy can be saved again, moreover it is possible to ensure the durable for a long time of LED street lamp.

Description

A kind of LED street lamp of timing automatic pressure regulation/light

Technical field

The present invention relates to the LED street lamp of a kind of timing automatic pressure regulation/light.

Background technology

The LED street lamp using in the current road in cities and towns and the stairs port passage in residential building building, its duty is all Starting to light from darkness, until the daybreak of next day, light fixture does not have pressure regulation/light function and always vehement light yellow.When later half When night arrives, the pedestrian in town road and vehicle to run are rare, and in the stairs port passage in residential building building, the people of walking is also Rare.In this situation, LED street lamp is still allowed to always work at vehement bright duty, it is clear that there is no need.And in the second half of the night Time period in, the voltage of circuit raises relatively, and when the voltage sometimes raising is even more than rated value, the voltage of superelevation will make LED street lamp produces light decay, even makes LED street lamp damage.

Content of the invention

The mentality of designing of the present invention is to be configured with work main circuit and timer circuit two in the circuit of LED street lamp Point, when LED street lamp works, first guarantee LED street lamp is in the road traffic busy time, and street lamp irradiates road with vehement bright illumination Face, facilitates vehicle and pedestrian's walking.Equally, before the stairs port passage of residential building also ensures when zero, street lamp is with vehement bright lamp Illuminance irradiates stairs port passage, facilitates resident to walk；And work continuously in LED street lamp and 5 little (determined by setting value) constantly, zero Period in morning has begun to, and the vehicle on traffic route and pedestrian start rareness, and the people that stairs port walks up and down is also rare.In this section In time, vehement bright lamp illuminance is kept obviously to there is no need.It is again to lead in the time period of daybreak next day in zero morning, the electricity of circuit The general above rated value of pressure, if not taking safeguard measure to the operating voltage of LED street lamp, it will bring damage to LED street lamp Bad danger.

The LED street lamp of a kind of timing automatic pressure regulation/light of the present invention, is carried out determining of light period by the timer circuit in lamp When the time set, i.e. LED street lamp sets in the time period that timing count down to from starting working to, is ensured by timer circuit LED street lamp is operated under vehement bright lamp illuminance, facilitates vehicle and pedestrian to walk on road.When the timing counting setting Then, by the automatic control circuit in timer, the operating current of LED street lamp is reduced, decrease the illumination of LED street lamp.This Sample, on the premise of the illumination effects ensureing road is little, it is ensured that LED street lamp escapes the danger that extra-high pressure is brought, also The electric energy of part can be saved.

A kind of LED street lamp of timing automatic pressure regulation/light, the work main circuit that its circuit structure is made up of capacitance-resistance voltage reduction circuit Timer circuit two parts with CD4060 chip composition.Power for operation according to capacitance-resistance voltage reduction circuit is determined by capacitance size Feature, during LED street lamp work, timer timing be between in section, use the capacitance of enough amounts, it is ensured that LED street lamp It is operated in vehement bright operating mode；Worked continuously a timing section setting in LED street lamp, when timing then, by fixed When device automatic control circuit effect, the partition capacitance excision in the capacitance-resistance voltage reduction circuit of LED street lamp, thus reduce LED road The operating current of lamp, reduces the illumination of LED street lamp, it is achieved automatic Regulation/light function.

Brief description

Accompanying drawing is the circuit theory diagrams of the LED street lamp of a kind of timing automatic pressure regulation/light.

Detailed description of the invention

As shown in drawings, the LED street lamp of a kind of timing automatic pressure regulation/light, its circuit structure is by the work of capacitance-resistance voltage reduction circuit Make main circuit and timer circuit two parts of CD4060 composition.The upper partial circuit of circuit shown in accompanying drawing is the electricity of resistance-capacitance depressurization Road, the normally opened contact composition capacitance-resistance voltage reduction circuit of C1, C2 and IC3 in figure.IC3 in circuit is the simulation that model is CD4066 Switch chip, the C1 branch road of the capacitance-resistance voltage reduction circuit that its normally opened contact is switched on or switched off in figure.It is just switched on power supply in LED street lamp When, it by the output circuit output low level signal of figure timer, and is maintained in whole timing, low level signal makes three poles Pipe T is become conducting from cut-off, thus triggers IC3 chip.After IC3 obtains and triggers the signal of telecommunication, the analog switch Guan Bi of IC3, connect C1 branch road in capacitance-resistance voltage reduction circuit in logical figure.At this moment, the capacitance in capacitance-resistance voltage reduction circuit is maximum, the driving electricity of LED street lamp Road, with specified current value supply LED street lamp operating current, allows LED street lamp be operated in vehement bright illumination state；When LED street lamp connects After the timing of continuous work timing device, by the high voltage signal of the 3 pin output lockings of the timer circuit IC3 of figure, act on three Pole pipe T is become cut-off from conducting, and in the capacitance-resistance voltage reduction circuit of figure, contact disconnection is opened in the field of IC2, cuts off in capacitance-resistance voltage reduction circuit Electric capacity C1 branch road, causes the capacitance in capacitance-resistance voltage reduction circuit to reduce.Being known by the electrical characteristic of capacitance-resistance voltage reduction circuit, capacitance-resistance drops After the capacitance of volt circuit reduces, the operating current of LED street lamp can be made to reduce, the illumination fall end of LED street lamp, thus realize LED street lamp automatic Regulation/light function.

As shown in drawings, in accompanying drawing, the lower part of circuit is timer circuit, R2 and C4 composition capacitance-resistance voltage reduction circuit in figure, Alternating current 220V voltage is reduced to about 20V and is given rectifier circuit rectifies by it, L2 and C5 forms compound filter circuit, rectification out Rectified alternating current become smooth direct current, be then sent for mu balanced circuit.IC1 is three terminal voltage regulator circuit, and IC1 selects here 7806, C6 is secondary filtering circuit, it is ensured that 12 pin of the stable dc power supply supply IC2 of high-quality and the working power of IC3.

As shown in drawings, IC2 is the IC chip of timer, and the model of selection is CD4060.12 pin of IC2 are a powering up runback The function pin of position, is just switched on the moment of power supply, being entered horizontal reset and timer counter by 12 pin of IC2 in LED street lamp.Meanwhile, The low level signal of the 3 pin output lockings of IC2, drives triode T to be become conducting from cut-off, drives IC3 analogue relay action, Its normally opened contact IC3 closes, and connects R1, C2 loop, makes C1, C2 parallel connection provide operating current to LED street lamp together, constitutes this electricity The rated current on road, being operated in vehement bright operating mode for LED street lamp provides enough current values, it is ensured that LED street lamp is operated in vehement bright Illumination state；Working continuously one in LED street lamp sets after time counting arrives, and the 3 pin outputs of IC2 are become high electricity from low level Flat, triode T is also become cut-off, IC3 tripping from conducting, and its normally opened contact IC3 disconnects, and cuts off R1, C2 loop, and LED street lamp is only Being supplied to LED luminous plaque operating current by single-circuit electric current, LED street lamp is operated in secretly bright work condition state；You Shi LED road After lamp automatic Regulation/light, lamp socket voltage reduces about 3 volts, makes street lamp escape the harm to street lamp for the extra-high pressure after midnight, makes Street lamp both many power savings are by can be often durable for a long time.

As shown in drawings, in figure, V is piezo-resistance, and its effect is that the impulse overvoltage of protection circuit moment is to LED street lamp Harm.

Claims

1. the LED street lamp of timing automatic pressure regulation/light, it is characterised in that: the circuit structure of LED street lamp by work main circuit and Timer circuit forms；Work main circuit is by capacitance-resistance voltage reduction circuit, rectifier circuit, compound filter circuit and LED luminous plaque electricity Road forms, and capacitance-resistance voltage reduction circuit is made up of the normally opened contact of electric capacity C1, C2 and R1 and IC3, and IC3 is analog switch chip, model Being CD4066, resistance to more than the 400V that is pressed in of C1, C2, timer circuit is by capacitance-resistance voltage reduction circuit, rectification circuit, compound filter electricity Road, three-terminal voltage-stabilizing circuit and CD4060 timer circuit composition, CD4060 timer circuit includes that IC2, described IC2 are timings 12 pin of device IC chip CD4060, IC2 are a powering up the function pin of Self-resetting, and 3 pin of IC2 are by resistance R7 connecting triode T's Base stage, the grounded collector of triode T, the emitter stage of triode T connects analog switch chip IC3, the normally opened contact control of IC3 C1 loop in capacitance-resistance voltage reduction circuit, the input of described work main circuit is connected to civil power 220V, then divides two loops to LED Street lamp transportation work electric current, wherein primary Ioops is composed in parallel by electric capacity C2 and resistance R1, is fixedly connected on the power supply of 220V；Another Loop is then controlled the closed and disconnected of C1 by the normally opened contact of IC3；It is just switched on the moment of power supply in LED street lamp, by the 12 of IC2 Pin enters horizontal reset to its internal circuit and timer counter starts, the ground level signal of the 3 pin output lockings of IC2, drives triode T From cut-off become conducting, drive IC3 analogue relay action, its normally opened contact close, connect electric capacity C1 loop, make electric capacity C1, C2 parallel connection provides operating current, the rated current of structure cost circuits to LED street lamp together, is operated in vehement bright operating mode for LED street lamp There is provided enough current values, it is ensured that LED street lamp is operated in vehement bright illumination state；When LED street lamp works continuously one and sets Between count down to after, IC2 3 pin output low level is become high level, triode T also from conducting become cut-off, IC3 tripping, its Normally opened contact disconnects, and cuts off C1 loop, and LED street lamp is only by the electric current supply LED luminous plaque operating current of single loop C2, LED road Lamp is operated in secretly bright work condition state.