CN103813593A

CN103813593A - Novel high-energy-saving automatic light adjustment LED (light emitting diode) street lamp

Info

Publication number: CN103813593A
Application number: CN201410057317.9A
Authority: CN
Inventors: 黄焕珠
Original assignee: Shangsi County Dongdong Electronic Science & Technology Co Ltd
Current assignee: Shangsi County Dongdong Electronic Science & Technology Co Ltd
Priority date: 2014-02-19
Filing date: 2014-02-19
Publication date: 2014-05-21

Abstract

Disclosed is a novel high-energy-saving automatic light adjustment LED street lamp. According to the novel high-energy-saving automatic light adjustment LED street lamp, the circuit is composed of a resistance-capacitance step-down circuit, a rectifier circuit, a thyristor controlled circuit, a timer circuit and a luminous panel circuit board. The working process of the street lamp comprises that the LED lamp starts working in a blazing state, and after working continuously for a timed time period, the street lamp automatically halves the power. The novel high-energy-saving automatic light adjustment LED street lamp has the advantages of being capable of saving 50% more electric energy on the basis of energy saving and avoiding damage of ultrahigh voltage of wires at late night, thereby ensuring durability.

Description

The LED street lamp that a kind of Novel high-energy-saving is with an automatic light meter

Technical field

The present invention relates to a kind of Novel high-energy-saving LED street lamp with an automatic light meter.

Background technology

For traffic route or the LED street lamp of stairs port passage at home, be all to lack automatic dimming function at present, street lamp vehement bright working always after work, one comes in the second half of the night people or car when all rare, allow street lamp in the same old way vehement bright be obviously waste on an energy; Two carry out after midnight the line voltage distribution overrate sometimes that raises, and can work the mischief to street lamp.

Summary of the invention

The LED street lamp that a kind of Novel high-energy-saving of the present invention is with an automatic light meter, provide a kind of timing automatic to regulate LED street lamp power functions, LED street lamp is carried out to timing automatic and turn down power, allow LED street lamp be a half by regulating the power of back light to subtract, the advance of its technology is: brightness adjustment control is the electric capacity of the normally opened contact control of a unidirectional thyristor and relay.Utilize the conduction angle aperture control of thyristor, and reduce the half capacitance in capacitance-resistance voltage reduction circuit, realize light modulation and make the power of LED street lamp reduce more than 50% later; The 2nd, by turning down after LED street lamp power, the operating voltage of the LED street lamp 2V left and right that declined before than light modulation, allows LED street lamp escape the harm of circuit extra-high pressure to street lamp after midnight, is conducive to the durable for a long time of LED street lamp.

Timing automatic reduces a LED street lamp for a half-power, and its circuit structure is made up of volt circuit, rectifier circuit, thyristor control circuit, relaxation oscillations circuit, timer circuit and LED luminous plaque capacitance-resistance.

Accompanying drawing explanation

Accompanying drawing is the circuit theory diagrams of a kind of Novel high-energy-saving LED street lamp with an automatic light meter.

Embodiment

As shown in drawings, IC3, C1, C6 and R12 composition capacitance-resistance voltage reduction circuit, it,, some the lower voltage of 220V values, sends to single phase bridge type rectifier circu rectification.C6 is controlled by relay normally open contact IC3, and in the time that IC3 disconnects, forming capacitance-resistance voltage reduction circuit by C1 and R12 provides AC power to rectification circuit; In the time that IC3 is closed, jointly forming capacitance-resistance voltage reduction circuit by C1, C12 and R12 provides AC power to rectification circuit.Choose C1=C6, then regulate R5 appropriate value, will realize LED street lamp with an automatic light meter after, on the basis of LED road lamp energy-saving, save again 50% electric energy.Rectifier circuit is made up of single phase bridge type rectifier circu, and its capacity is selected according to luminous plaque power.

As shown in drawings, D1 is unidirectional thyristor, and capacity is selected according to load.The trigger pulse width of unidirectional thyristor is controlled by single crystals brake tube VT and peripheral resistance R 4, R5, C3, changes the value of R4, R5, C3, can change the ON time of unidirectional thyristor D1 within the cycle, thereby changes the brightness of LED street lamp.

Inductance L and capacitor C 2 that unidirectional thyristor output connects form compound filter circuit, and it becomes the Rectified alternating current of thyristor D1 output into smoother direct current and supplies with LED lamp string.

As shown in drawings, VT, R2, R3, R4, R5 and C3 composition relaxation oscillator circuit, under the constant prerequisite of R2, R3, R4, by changing the value of adjustable resistance R5, can change the frequency of oscillation of relaxation oscillator, thereby change the conduction aperture of unidirectional thyristor D1.

As shown in drawings, IC1 and peripheral circuit form the timer circuit of Novel high-energy-saving LED street lamp with an automatic light meter, the model of IC1 is CD4060, R6, C4 are electrifying self-resetting circuit, before self-resetting circuit, there is three terminal regulator circuit, it carries out filtering by filter capacitor C5 the Rectified alternating current of relaxation oscillation electrical equipment, then supplies with timer circuit working power through voltage stabilizing value of pressurizer output.Obtain electricity moment at LED street lamp, IC1's self-resetting circuit is resetted and timer counter starts, the now 3 end output low levels of IC1, cause the triode T of positive-negative-positive to become conducting from cut-off, relay IC3 adhesive, its normally opened contact IC3 closure, connects C6 loop, now, circuit provides operating current with rated value to luminous plaque.

R7, R8, the C5 of IC1 peripheral circuit form long timing circuit, choose the value of R7, R8, C5 and pass through the effect of switching push button A, can the timing timing of 4-6 hour.

As shown in drawings, luminous plaque is made up of LED lamp string, and its positive pole is connected on the output of compound filter circuit, and negative pole is received the negative pole of rectifier.The power decision that the string of luminous plaque quantity are exported by unidirectional thyristor D1.

A kind of novel high joint LED street lamp with an automatic light meter, through practical application and test, when choosing C1=C12, regulate the value of R5, just can make LED street lamp timing time then, automatically the power of LED street lamp is reduced to half, and the brightness of LED street lamp does not affect the normal illumination of road, is a kind of LED street lamp being worthy of popularization.

Claims

1. a Novel high-energy-saving LED street lamp with an automatic light meter, its special card is: the circuit of Novel high-energy-saving LED street lamp with an automatic light meter is made up of capacitance-resistance voltage reduction circuit, rectification circuit, unidirectional thyristor control circuit, timer circuit and luminous plaque.

2. a kind of Novel high-energy-saving according to claim 1 LED street lamp with an automatic light meter, is characterized in that: capacitance-resistance voltage reduction circuit is made up of C1, C6 and R12, and C6 is controlled by the electric shock IC3 that often opens of relay.

3. a kind of Novel high-energy-saving according to claim 1 LED street lamp with an automatic light meter, is characterized in that: rectification circuit is made up of single phase bridge type rectifier circu, and capacity is selected according to ED street lamp power.

4. a kind of Novel high-energy-saving according to claim 1 LED street lamp with an automatic light meter, is characterized in that: the operating current of unidirectional thyristor control circuit control luminous plaque, capacity is selected by luminous plaque power.

5. a kind of Novel high-energy-saving according to claim 1 LED street lamp with an automatic light meter, is characterized in that: timer circuit is made up of IC1, and its model is CD4060 chip, and timing can be set 4-6 hour, and 3 ends of IC1 connect positive-negative-positive triode.

6. a kind of Novel high-energy-saving according to claim 5 LED street lamp with an automatic light meter, is characterized in that: the LED lamp string of luminous plaque, and its positive pole is serially connected in composite filter output, and negative pole is received the negative pole of rectification circuit.