CN106255263A

CN106255263A - A kind of novel COB street lamp

Info

Publication number: CN106255263A
Application number: CN201610651857.9A
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: 2016-08-08
Filing date: 2016-08-08
Publication date: 2016-12-21

Abstract

A kind of novel COB street lamp, changes traditional parallel, uses the method for attachment of a road series connection, such series wiring, it is possible to reduce the work total current of COB street lamp；Can reduce the caloric value during work of COB street lamp, make the operating temperature of COB street lamp be maintained at less than 50 DEG C, making COB street lamp can be to reach 50,000 hours with the life-span；The electric energy loss brought by thermal losses electric energy can be reduced, so that COB street lamp saves the electric energy of about 50% than common like product.

Description

A kind of novel COB street lamp

Technical field

The present invention relates to a kind of novel COB street lamp.

Background technology

Current COB street lamp, power is big, and when being formed large power road lamp by single COB, uses the electricity of parallel connection Road connected mode, when the power of street lamp is the biggest, COB number in parallel is the most, and the work total current causing street lamp is big, because hot Amount is changed into heat energy by electric current, and during so operating current is big, the caloric value of street lamp is the biggest, and the electric energy of loss is the most, street lamp Spoilage just high.

Summary of the invention

A kind of novel COB street lamp of the present invention, discloses the Novel connection connection circuit of a kind of COB street lamp, this method of attachment, makes The work total current of street lamp is with the rated current of single COB for value, decreases n-1 the magnitude of current, and the caloric value of street lamp also subtracts Having lacked n-1 caloric value, the lamp temperature raising degree of street lamp is maintained at less than 50 DEG C；Consumption rate is than common COB road lamp energy-saving 50%, road The serviceability ratio of lamp can reach 50,000 hours.

A kind of novel COB street lamp, its circuit forms by rectification circuit, pulse-width modulation circuit, capacitance-resistance voltage reduction circuit, pulse Translation circuit, timer circuit and COB circuit for lamp composition.

Accompanying drawing explanation

Accompanying drawing is the circuit theory diagrams of a kind of novel COB street lamp.

Detailed description of the invention

As shown in drawings, A1 is one-way commutation heap, alternating current 220V is become unidirectional current, then becomes through electric capacity C1 filtering Unidirectional current supply the pulse conversion circuit B, described pulse conversion circuit B of about 300V are the pulse transformings of FERRITE CORE always Device, selects suitable no-load voltage ratio coefficient, can meet required magnitude of voltage.Pulse transformer translation circuit B is by pulse-width modulation circuit Control, described pulse-width modulation circuit is made up of IC1 and peripheral circuit, and its outfan V3 controls pulse transformer translation circuit B Work, as long as selecting frequency more than 120Hz, then COB street lamp just loses stroboscopic phenomenon.

As shown in drawings, R1, C3 are capacitance-resistance voltage reduction circuits, and rectification given by the alternating current that alternating current 220V is become about 12V Circuit A2, A2 become alternating current into unidirectional current, filter through inductance L, then through both-end manostat D7 voltage stabilizing, output 12V's is straight The working power of stream electricity supply IC1, IC2 circuit.

As shown in drawings, IC2 and peripheral circuit composition timer circuit, 12 feet of IC2 are timing Enable Pins, obtain at IC2 The moment of power supply, 12 foot one positive pulse signal of input of IC2, IC2 internal circuit resets, and timer counter starts, now IC2 3 foot output low levels, drive positive-negative-positive audion T from cut-off become conducting, relay J adhesive, its normally opened electric shock J close, Connection the 2 of IC1,6 feet are connected with the right-hand member of R3.

As shown in drawings, IC1 is pulse-width modulation circuit, and the model of IC1 is time base circuit 555 chip, by R2, d1, d2, R3, J, C9 component frequency is fixed, the pulse-width modulation circuit of adjustable pulse width, and its modulation is just with the normally opened contact J of relay and normally closed The Guan Bi of contact J determines pulsewidth.When the normally opened contact J of relay closes, the right-hand member of R3 is connected with the 2 of IC1,6 feet, this Time IC1 the dutycycle of 3 feet outputs big, the voltage of effect pulse transformer B output is high, and COB street lamp is operated in vehement bright operating mode In；When the normally-closed contact J of relay closes, the left end of R3 is connected with the 2 of IC1,6 ends, accounting for of the now 3 foot outputs of IC1 Empty ratio is little, and the voltage of effect pulse transformer B output is low, and COB street lamp is operated in the brightest operating mode, it is achieved merit with an automatic light meter Energy.

As shown in drawings, B and V3 forms pulse conversion circuit, and B is pulse transformer, selects suitable no-load voltage ratio coefficient, i.e. The running voltage needs of COB can be met；V3 is field effect transistor, and its work is controlled by the 3 foot output voltage signals of IC1.

As shown in drawings, D2, D3 ... D6 forms COB street lamp circuit, changes traditional parallel, uses a road string The method of attachment of connection, such series wiring, it is possible to reduce the work total current of COB street lamp；Can reduce when COB street lamp works Caloric value, makes the operating temperature of COB street lamp be maintained at less than 50 DEG C, and making COB street lamp can be to reach 50,000 hours with the life-span；Permissible Reduce the electric energy loss brought by thermal losses electric energy, so that COB street lamp saves the electric energy of about 50% than common like product.

As shown in drawings, V is varistor, plays transient overvoltage protective effect in circuit；R1, C3 are resistance-capacitance depressurization electricity Road, send commutator A2 rectification after in circuit alternating current 220V being reduced some volts；C4 is filter capacitor；D7 is both-end voltage stabilizing Pipe；D9 is fly-wheel diode.

Claims

1. a novel COB street lamp, it is characterised in that: street lamp uses pulse-width modulation circuit, timing automatic light adjusting circuit, DC/ The COB circuit composition of DC translation circuit and road series connection；Described pulse-width modulation circuit selects model to be time base circuit 555 IC1 and peripheral circuit composition, the 2 of IC1,6 foot inputs are controlled by normally opened, the normally-closed contact J of relay；When normally opened contact J closes During conjunction, the pulse duty cycle of output is big, and COB street lamp obtains high voltage and is operated in vehement bright operating mode；When normally-closed contact J closes Time, the pulse duty cycle of output is little, and COB street lamp obtains low-voltage and is operated in the brightest operating mode；Use timing automatic light modulation The work of circuit control relay, when making COB street lamp just start working, with vehement bright operating mode work；Set in work one continuously The operating mode that after counting down to, conversion is the brightest automatically of fixing time works, thus realizes automatic dimming function；Described DC/DC translation circuit It is made up of pulse transformer circuit, selects suitable no-load voltage ratio, the magnitude of voltage needed for COB street lamp can be met；Described COB electricity Road, single COB, when forming large power road lamp, use the mode of connection of a road series connection, as such, it is possible to reduce the work of COB street lamp Make total current；The caloric value during work of COB street lamp can be reduced, make the operating temperature of COB street lamp be maintained at less than 50 DEG C, make COB street lamp can be to reach 50,000 hours with the life-span；The electric energy loss brought by thermal losses electric energy can be reduced, so that COB road Lamp saves the electric energy of about 50% than common like product.