CN2237261Y

CN2237261Y - Electronic flash warning lamp

Info

Publication number: CN2237261Y
Application number: CN 94240840
Authority: CN
Inventors: 于建民
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-05
Filing date: 1994-07-05
Publication date: 1996-10-09
Anticipated expiration: 2004-07-05

Abstract

The utility model provides an electronic flash warning lamp, which is composed of a warning lamp, diodes, a thyristor, a resistance, a capacitance, a potentiometer, etc. A biphase rectifier is composed of the diodes for the work of the thyristor and other components, and the utility model can keep one half of current all the time, filaments are in a semibright state, the other half of current is used for lighting the filaments fully, and the utility model can glitter. The utility model has the advantages of small volume, few component, low cost, simple manufacture, long service life, etc.

Description

The electronic flash warning light

The utility model relates to a kind of electronics lighting control technology, specifically a kind of electronic flash warning light.

Along with rapid economic development, the communication of China has entered a new developing stage, constantly building of highway, urban water supply, power supply, telecommunications, the continuous increase of circuit facility, the safety warning lamp of using all for us has at present proposed new requirement, particularly some enterprises and shop are at many neon lights of roadside making and settlement, color lamp, billboard, serious disturbance the effect of warning of all kinds of warning lights, the accident of being directed at happens occasionally, past people designed many Flash lamps and lanternses and replaces the present ordinary lamp and lantern that uses to do safety warning usefulness, but because the life-span of light fixture itself, volume, reason such as cost and service condition, and can not widespread use, its main cause one, be the contact, owing to generally have the contact flasher circuit to be easy to generate spark and the ablation contact, so the life-span is limited; Two, be transformer, the transformer of using always in the general circuit can not be with using in the open so can not all seal because volume is big; Three, be the flashlamp used in the general circuit be go out entirely and complete bright between flash of light, be generally about 60 Ω during the filament resistance cold conditions of general bulb, complete bright then be about 800 Ω when hot, differ nearly 14 times, to bright entirely, when promptly filament was from the difference variation of normal temperature to 2000 degree, filament will afford tens times rush of current by cool attitude, thereby cause filament usually in flash of light, to blow, influenced normal use.

The purpose of this utility model provides a kind of contactless, the Flash lamps and lanterns that the 200V voltage of long service life is directly powered, electronic flash warning light.

The purpose of this utility model realizes by following purpose, utilize diode to carry out full-wave rectification, make warning light remain half electric current for thyristor and other element work, and make it be in half bright state, and make its full intense flash with second half electric current, therefore promptly reduced the impact of electric current to filament, prolong the serviceable life of filament, can save transformer, relay and so on device again, reduce volume and reduce cost, therefore can be widely used in safety installations such as railway, highway communication, working-yard.

Figure of description is circuit theory diagrams of the present utility model;

Describe in detail below with reference to Figure of description warning light of the present utility model being done.

The employed former device of electronic flash warning light of the present utility model comprises warning lamp ZD, diode D ₁-D ₃, resistance R ₁, R ₂, capacitor C, thyristor T and potentiometer W etc., ZD one end and 220V power for illumination live wire join, the other end and D ₂Anodal, D ₁Negative pole also meets D ₂Negative pole and D ₃The anode phase of negative pole, T also meets D ₃Positive pole serial connection R ₁, between C and the ground wire, R ₂Be connected to D ₃Negative pole and R ₁Two ends, W two fixed junctures and C also connect, and the moving contact and the T control utmost point join 220V ground wire and D ₁The negative pole of positive pole, T negative electrode, W and C also connects.

Electronic flash warning light of the present utility model, its principle of work are AC power D when negative half period ₁Conducting, filament are secretly bright, are loaded with half conducting electric current on the filament, and electric current passes through D during positive half cycle ₂R ₂To the electric capacity charging, because R ₂Hindrance function, the voltage on the capacitor C can not be once sufficient, waits several all after dates, and the voltage abundance on the capacitor C through the W dividing potential drop, triggers controllable silicon T conducting, adds positive half cycle voltage to filament, and filament is bright entirely, after the controllable silicon T conducting, because R ₁Less than R ₂Charging current on the capacitor C is less than discharge current, and the voltage on the C descends, and drops to a certain degree, because effect at the zero point of AC current, controllable silicon ends, and at this moment electric current returns to half again on the filament, and filament is secretly bright, and then charge to electric capacity, the warning lamp that goes round and begins again moves with regard to a bright back light, adjusts W and can change the capacitor charge and discharge number of times, promptly changes flashing rate.

All kinds of flash lamps of electronic flash warning lamp of the present utility model and prior art mutually More simple in structure than having, volume is little, and cost is low, is easy to make, and is easy to install, The advantages such as long service life have good value for applications.

Claims

1, electronic flash warning light comprises warning lamp ZD, diode D ₁, D ₂, D ₃, resistance R ₁, R ₂, capacitor C, intergranular pipe T and potentiometer W, it is characterized in that ZD one end and power for illumination live wire join the other end and D ₂Anodal, D ₁Negative pole also meets D ₂Negative pole and D ₃Negative pole, the anode phase of T also meets D ₃Positive pole serial connection R ₁, between C and the ground wire, R ₂Be connected to D ₃Negative pole and R ₁Two ends, W two fixed junctures and C also connect, and the moving contact and the T control utmost point join ground wire and D ₁The negative pole of positive pole, T anode, W and C also connects.