CN104602421B

CN104602421B - A kind of LED street lamp driver of multifunctional efficient electricity-saving rate long-life

Info

Publication number: CN104602421B
Application number: CN201510082554.5A
Authority: CN
Inventors: 黄焕珠
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-02-15
Filing date: 2015-02-15
Publication date: 2019-03-15
Anticipated expiration: 2035-02-15
Also published as: CN104602421A

Abstract

The LED street lamp driver of multifunctional efficient electricity-saving rate long-life a kind of, built-up circuit are made of electronic transformer circuit, rectifier circuit, thyristor control circuit, constant-current source circuit, voltage regulator circuit, automatic dimming circuit and electron temperature control circuit.A kind of LED street lamp driver of multi-functional high power saving efficiency long-life has timing automatic dimming function；Has the function of constant current source power supply；With electron temperature control function；With semiconductor chilling plate heat sinking function.If making LED street lamp that there is the function of being higher by 25% or more than the electricity-saving rate of common LED street lamp not with an automatic light meter in LED street lamp this driver applications；LED street lamp is set to have the operating temperature of control street lamp in 50 DEG C of functions below；LED street lamp is set to be able to use the function by 50,000 hours.

Description

A kind of LED street lamp driver of multifunctional efficient electricity-saving rate long-life

Technical field

The present invention relates to the LED street lamp drivers of multifunctional efficient electricity-saving rate long-life a kind of.

Background technique

LED is eliminating the street lamp of incandescent lamp kind with the high advantage in its electricity-saving rate at present, and only current LED street lamp is driven Dynamic device, has a single function, lacks timing automatic dimming function, lacks semiconductor chilling plate heat sinking function, makes driver for the road LED When lamp, the fractional energy savings of LED street lamp is not fully enhanced, and the service life of lamp is not grown.

Summary of the invention

The LED street lamp driver of multifunctional efficient electricity-saving rate long-life of the invention a kind of, it is open a kind of multiple functional, it can be fixed When LED street lamp driver with an automatic light meter；Street lamp driver energy semiconductor chilling plate helps heat dissipation；Street lamp driver energy constant-current source supplies The LED street lamp driver of the multifunctional efficient power saving of electricity.If using this driver in LED street lamp, timing function with an automatic light meter Can, it allows street lamp to carry out Power auto-adjustment by the operating condition of traffic route, is a setting time when starting to work such as street lamp to zero Section, in this timing section, street lamp is worked with vehement bright operating condition.After timing setting time counting arrives, street lamp automatically will Function reduces more than half power, under the premise of not influencing road traffic illumination, makes the fractional energy savings of street lamp on energy-efficient basis On save 25% or more electric energy again；LED street lamp driver is radiated using semiconductor chilling plate, and partly with the control of electronics protractor The power of conductor, the temperature of LED street lamp are worked electric at 50 DEG C or less by single spur track moral constant-current supply semiconductor supply cooling piece Source；When LED street lamp temperature is more than 50 DEG C or more, second constant-current supply, the electric current of You Liangzhi constant-current source superposition are automatically engaged Operating current is provided to semiconductor chilling plate, to improve the power of semiconductor chilling plate, effectively controls the work temperature of LED street lamp At 50 DEG C hereinafter, realizing the HATIZ theorem of LED: " when LED operation temperature is 25 DEG C or less, service life is 100,000 hours；25- At 50 DEG C, service life is 50,000 hours.", even if LED street lamp service life reaches 50,000 hours.Such as 12 are used daily by street lamp Hour calculates, then street lamp service life can be made within 50,000 hours to reach 11 years.

The LED street lamp driver of multifunctional efficient electricity-saving rate long-life a kind of, circuit composition is by electronics reduction voltage circuit, whole Current circuit, thyristor control circuit, constant-current source circuit, timing automatic dimming circuit, electron temperature control circuit and semiconductor system Cold radiating circuit composition.

Detailed description of the invention

Attached drawing is a kind of circuit diagram of the LED street lamp driver of multifunctional efficient electricity-saving rate long-life.

Specific embodiment

As shown in the picture, D1, D2, R1, R2, R3, C1 form electronic transformer circuit, and R1 is adjustable resistance, passes through adjusting The value of R1 makes input AC 220V voltage become required alternating current output voltage values, for voltage needed for next stage circuit；B is single The alternating voltage that electronic transformer exports is become the DC voltage supply next stage circuit of pulsation by phase full-wave rectifier circuit Operating voltage.

As shown in the picture, D4, R4, R5, R6, C2, C3 form thyristor phase-shift control circuit, by DC voltage control about 40V range supplies LED street lamp operating voltage.

As shown in the picture, IC1, R7, C5 and IC2, R8, C6 are two groups of independent constant-current power supply circuits, appropriate by selecting R7 or R8 value, can be obtained required Constant Electric Current source value, and by the work electricity of two groups of constant-current supply parallel connections supply LED street lamps Source.In two groups of constant-current sources, wherein one group of IC2 constant-current source is controlled by the normally opened contact IC6 of relay, when LED street lamp just starts work Make to terminate to stop to set period of time, street lamp is worked with vehement bright operating condition；After setting time is count down to, the normally opened contact of relay Tripping IC2 branch, Dan You IC1 branch rood constant-current source supply LED lighting board working power, realize automatic dimming function.

As shown in the picture, IC3, IC4, C10 form voltage regulator circuit, and IC3, IC4 are the three terminal regulators of model 7812, are adopted It is to increase output current value with the purpose being connected in parallel, to meet the power requirement of next stage circuit.

IC5 is model CD4060 chip, and 9,10,11 feet form timing constant, select value appropriate, Ji Keman The required setting time of foot.R9, C8 of 12 feet of IC5 are electrifying self-resetting circuits, and when IC5 obtains electricity, 12 feet are inputting one just Pulse resets IC5 chip, and exports low level in 3 feet of IC5, and the triode T1 of positive-negative-positive is driven to become being connected from ending, Relay IC6 is acted after triode T1 conducting, and normally opened contact IC6 is attracted, and continuous current source IC2 branch is connected, by two perseverances Current source circuit IC1, IC2 superimposed current value provides operating current to LED lighting board.

After LED street lamp starts to obtain electricity work, the timer of automatic voltage regulating circuit carries out accumulative timing, timing to be waited When counting down to, IC5 output end 3 becomes high level from low level, and triode T1 becomes ending from being connected, relay IC6 tripping, Normally opened contact IC6 disconnects IC2 branch, only supplies working power from the constant current source of IC1 branch to LED lighting board.Meanwhile The 3 end output high level voltages of IC5 are sent to 11 feet, force the internal oscillator circuit failure of oscillation of IC5, and failure of oscillation is maintained to pass Until lamp.

As shown in the picture, IC8, T2, R13, R14, R15, R16, C9 and IC7 form electron temperature control circuit, utilize silicon The every temperature of triode emission junction voltage temperature coefficient rises 1 DEG C, and transmitting junction voltage can decline the characteristic of 2.5V, operational amplifier LM324 is connected into same phase direct current amplification form, and temperature is higher, and triode T2 pressure drop is smaller, the homophase input voltage of operational amplifier Lower, output voltage is also lower.Temperature-control circuit moral output voltage is sent to the 2 of IC7,6 feet.IC7 be model 555 when Base circuit chip, when the voltage of 2,6 feet of IC7 is greater than 2U_CCWhen/3,3 foot of output of IC7 is low level；When the voltage of 2,6 feet is low In U_CCWhen/3,3 foot of output of IC7 is high level.The work that the voltage change control IC11 of 3 feet is exported using IC7, to control The watt level of semiconductor chilling plate IC12 reaches the function of control LED operation temperature.

As shown in the picture, IC12 is semiconductor chilling plate, be mounted on by lampshade, light-emitting LED plate, electronic temperature controller and In the seal chamber of the face composition that feels cold of semiconductor chilling plate, the face of feeling cold of semiconductor chilling plate distributes cold energy when work, distributes The heat that LED is distributed is neutralized in seal chamber reaches heat dissipation effect；And the heating surface of semiconductor chilling plate is mounted on and is connected with lamp housing Place, when work, just pass through lamp housing and radiate to space.

As shown in the picture, V is varistor, plays overvoltage protection in circuit.

Claims

1. the LED street lamp driver of multifunctional efficient electricity-saving rate long-life a kind of, circuit composition is by electronic transformer circuit, whole Flow device circuit, thyristor control circuit, constant-current source circuit, voltage regulator circuit, automatic dimming circuit, electron temperature control circuit and Semiconductor chilling plate circuit composition, it is characterised in that: electronic transformer is by bidirectional thyristor D2, bilateral diode D1 and periphery electricity Road composition, R1 is adjustable resistance, and the input terminal of electronic transformer is electrically connected with city, and output end is connect with rectifier circuit, is passed through The resistance value for adjusting R1, alternating voltage needed for electronic transformer output can be made；Thyristor control circuit by unidirectional thyristor and Peripheral circuit composition, resistance R6 are adjustable resistance, change the value of R6, i.e., the conductive aperture of controllable unidirectional thyristor D4, output Required voltage value；Constant-current source circuit is made of three terminal regulator IC1, IC2, resistance R7, R8, capacitor C5, C6, by IC1, R7, C5 and IC2, R8, C6 constitute two groups of independent constant-current power supply circuits, and two groups of constant-current source circuits are in parallel, supply the work of LED street lamp Power supply, wherein IC2 constant-current source is controlled by the normally opened contact of relay IC6；Voltage regulator circuit is by three terminal regulator IC3, IC4, capacitor C10 composition, IC3, IC4 are automatic dimming circuit, electron temperature control circuit and semiconductor chilling plate circuit using being connected in parallel Operating voltage is provided；Automatic dimming circuit is by light modulation special chip IC 5, resistance R9, R10, R11, R12, capacitor C8, C11, two poles Pipe D5, D6, triode T1 and relay IC6 composition, the model CD4060 of IC5 dim 9,10,11 feet of special chip IC 5 Timing constant is formed, 12 feet of IC5 external R9, C8 are electrifying self-resetting circuits, when IC5 obtains electricity, 12 feet input one A positive pulse signal resets IC5 chip, and exports low level in 3 feet of IC5, and the triode T1 of positive-negative-positive is driven to be become by cut-off For conducting, relay IC6 is acted after triode T1 conducting, and normally opened contact IC6 is attracted, and connects constant-current source IC2 branch, You Liangzhi Constant-current source circuit IC1, IC2 superimposed current value provides operating current to LED lighting board, after LED street lamp starts to obtain electricity work, from The timer of dynamic regulating circuit carries out accumulative timing, and when waiting timings to count down to, 3 foot of IC5 output end is become from low level High level, triode T1 become ending from being connected, relay IC6 tripping, and normally opened contact IC6 disconnects IC2 branch, only by IC1 The constant current of branch supplies working power to LED lighting board, realizes with an automatic light meter；Electron temperature control circuit is by silicon triode T2 and operational amplifier IC8 and peripheral circuit composition, the model of IC8 is LM324, and temperature is higher, and the pressure drop of triode T2 is smaller, The homophase input voltage of operational amplifier is lower, and output voltage is also lower, and the output voltage of temperature-control circuit is sent to IC7's 2,6 foot, IC7 are the when base counting chips of model 555, and the work of the voltage change control relay IC11 of 3 feet is exported using IC7 Make, to control the watt level of semiconductor chilling plate IC12, reaches the function that control LED function makees temperature.