CN2347335Y - Multi-sensing high voltage sodium lamp ballast - Google Patents

Abstract

The utility model provides a ballast used on a high voltage sodium lamp, a mercury lamp and other gas discharge lamps. The utility model is characterized in that when supply voltage changes between 210V to 260V, the brightness of a lamp is constant, and the energy conservation of street lamps and the prolongation of the service life of a lamp can be realized. Multiple sensing mode is adopted by the utility model, a second inductor L1 and a third inductor L2 can be controlled by a relay to realize real time switching on or switch off according to different network voltage. The equal luminance at different voltage of a road lamp can be realized, and the utility model has the advantages of simple structure and reliable performance. Combined package of the second inductor L1, the third inductor L2 and a main inductor can be realized, and individual package of the second inductor L1, the third inductor L2 and the main inductor can be also realized. The utility model is an ideal product for the energy conservation and the service life extension of the existing street lamps, and the utility model is also a new product to replace a ballast of the existing street lamp.

Description

The multi-sensing high-voltage sodium lamp ballast

The utility model relates to high-voltage gas discharging light, as high-pressure sodium lamp, mercury lamp, etc. the ballast of metal halide lamp.

Single inductance type ballast of adopting of past night of street lamp work because the voltage ripple of power network scope at 210V--250V, makes the street lamp actual power loss change between 1 times to 1.9 times.The first half of the night, street lamp was in rated power work because line voltage is low, and owing to the voltage height, the street lamp actual power loss is that 1.7--1.9 times of lighting tube brightness of rated power improves nearly one times after midnight.Lost of life 2--3 times, and this moment is not high owing to the few illuminating effect utilization of pedestrian, wastes very big.The purpose of this utility model provides a kind of no matter how line voltage changes the constant sense formula ballast of street lamp brightness, to reduce street lamp power consumption after midnight, the life-span of prolonging lamp tube.

The purpose of this utility model is achieved in that the size by the automatic detection of grid voltage of voltage check device drops into one or two inductance reducing the power consumption of street lamp automatically according to setting, prolonging lamp tube useful life.

Accompanying drawing 1 is a circuit structure diagram of the present utility model, and it is made up of three parts, and wherein first is original single high-pressure sodium lamp system of feeling, and inductance L, trigger S and fluorescent tube N are arranged.Second portion is that core of the present invention is made up of contact K1, the K2 that inductance L 1, L2 and relay J 1, J2 control; Third part is a control section, is used for according to the height control J1 of voltage and the action of J2.Its circuit structure is the inductive bank of forming to the one or more inductance L 1 of series connection, L2 between the power supply before the system that former inductance L and trigger S high-pressure sodium lamp are formed, and inductance L 1, L2 two ends are parallel with K switch 1, K2 by relay control respectively.Its operation principle is: by the DC power supply that C1, C1, D1, D2,2CW1 form, the voltage sample circuit that R1, R2, D3, C3, R4 form can take out the height of supply voltage, delivers to the in-phase input end of comparator B1, B2 respectively.B1, B2 inverting input respectively with A, B 2 points of the dividing point of forming by R5, R6, R7.When supply voltage is higher than 230V, be higher than the potential comparator B1 output high level that A order by the voltage of R4 output and make the J1 action, the K1 of J1 control is disconnected, L1 is connected between power supply and the L, increase inductance value, feasiblely reduce by lamp tube current.When supply voltage was higher than 240V, the voltage of being exported by R4 was higher than the B point, and voltage comparator B 2 output high level make the J2 action, and the K2 of J2 control is disconnected, and L2 is connected between power supply and the L, increase inductance value again.Because K1, K2 be normally closed, when supply voltage during less than 230V relay be failure to actuate K1, K2 with L1, L2 two terminal shortcircuits, L1, L2 are inoperative.Respectively L1 and L2 being connected in series to when supply voltage is higher than 230V makes lamp tube current not rise with voltage in the loop.Thereby lighting tube brightness is constant when realizing voltage rising after midnight, realizes energy-conservation and purpose prolonging lamp tube service life.

The present invention can be with second and the independent production and assembly of third part for satisfying original road lamp energy-saving, and the front end that is added in existing high-pressure sodium lamp is realized the energy-conservation of existing street lamp and lengthened the life.For the tight high-voltage sodium lamp ballast of new life can with second and third part and L assemble production jointly, realize the update of product.

Multi-sensing ballast of the present invention.Not only be useful for high-pressure sodium lamp, and be useful for the gas discharge luminous lighting lamp of useful ballast ballast.

Claims (4)

1: two senses of being made up of inductance L, L1, L2 and relay J 1, J2 and resistance R 1--R8 and capacitor C 1--C3 and diode D1--D3 comparator B1, B2 etc. or feel the high-voltage sodium lamp ballast more and it is characterized in that: inductance L 1, L2 are connected between inductance L and the power supply, are parallel with K1, K2 by relay control respectively at inductance L 1, L2 two ends;

2: it is characterized in that according to the described device of claim 1: L and L1, L2 not only can encapsulate separately but also can unite encapsulation;

3: it is characterized in that according to the described device of claim 1: the inductance between L and the power supply can be one or more;

4: it is characterized in that according to the described device of claim 1: affiliated product is useful for the sense formula ballast of all gas discharge lamp.

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