CN2146835Y

CN2146835Y - Electronic glow starter for metal-halogen light

Info

Publication number: CN2146835Y
Application number: CN 92221343
Authority: CN
Inventors: 王大魁; 王令义
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-22
Filing date: 1992-09-22
Publication date: 1993-11-17
Anticipated expiration: 2002-09-22

Abstract

The utility model relates to a special electronic glow starter for the metal-halogen light which is a semiconductor solid circuit device. The device comprises a silicon bilateral switch pipe or a silicon switch circuit component connected in series with capacitance and resistance, poured in a plastic casing through resin. The device can produce periodic forced shock oscillation voltage. The device has the advantages of low pulse peak and high voltage effective value. The utility model is only required to be connected with a common amperite. The special electronic glow starter for the metal-halogen light overcomes shortcomings of difficult starting up, easy damage of electric appliances, too high temperature rise of the amperite, short service life, etc. Existing in various lighting devices. The special electronic glow starter for the metal-halogen light has the excellent performance.

Description

Electronic glow starter for metal-halogen light

The utility model is a kind of metal halogen lamp electric starter that is used to light the special use of metal-halide gas discharge lamps (band ignitor), belongs to the solid state circuit device of forming with semiconductor element.

Present widely used metal halide lamp firing device has two kinds.A kind of is the ignition device that adopts sodium vapor lamp or dysprosium lamp electronic starter and common ballast composition: it is in the start-up course of lighting a lamp, produce the high-voltage pulse of very narrow (several microsecond), peak value of pulse is very high, greater than 2.5～10KV, but voltage effective value improves few, is not more than the 10V of input voltage.Thereby starter is lighted just relatively difficulty of Metal halogen lamp, and is unreliable, and it is poorer that cold-starting and lighting a lamp is restarted performance.The ignition device that another kind is to use magnetic-leakage type ballast and current limiting capacitance to form: it boosts by the leakage field transformation effect of leakage field ballast, produce a broad pulse (＞1ms), the leakage field pulse voltage of crest voltage not high (800V), the output voltage effective value improves 50～80V.The startability of lighting a lamp is good, but exists other shortcomings, and in the operate as normal behind the starter of lighting a lamp, pulse voltage is transformed into pulse current, and the current waveform factor of light source is very poor, and it is more serious to distort.Therefore cause the temperature rise of ballast too high (＞70～90 ℃), light source, ballast life weak point, easily from putting out, particularly low-power light source is particularly serious.And the cost of this ignition device is very big.

The purpose of this utility model provides a kind of electronic starter, existing good starting characteristic, overcome the shortcoming of above two kinds of ignition devices again, and cost being low, is the most novel electronic starter that is specially adapted for metal halide lamp (band ignitor) total power scope.

The purpose of this utility model is achieved in that in insulation and moulds in the shell, waters the circuit unit of envelope with resin, and circuit is by silicon bidirection switch pipe or bi-directional thyristor switch circuit unit and resonant capacitance, and series resistor is in series and is solid state device.Wherein the circuit of bi-directional thyristor switch circuit unit by the main element bidirectional triode thyristor with at the silicon controlled two ends and connect branch pressure-controlled branch road and forms, the formation of connecting with last divider resistance again after divider resistance and the parallel connection of triggering storage capacitor under the route; And draw one the tunnel at the branch road mid point, series connection two-way trigger tube and triggering current-limiting resistance cause the silicon controlled trigger electrode.Solid state device also is connected in the common ballast output of (or tap on common ballast adds capacitance compensation, waveform correction), the i.e. two ends of light source.The inductance of ballast and resonant capacitance constitute the tandem resonant circuit, under the switching characteristic effect of silicon bidirection switch pipe or reverse-blocking tetrode thyristor circuit unit, produce and periodically be forced to shock oscillation voltage (being forced to resonance), its voltage characteristic is that peak value of pulse is not high, less than 800V, voltage effective value can be higher than supply voltage 50V above (voltage waveform is seen Fig. 4).Series resistor can be regulated shock oscillation voltage.

Output voltage U _o-input voltage U _i〉=50V

That is, when input supply voltage was 200V, the output voltage effective value was more than 250V.The leakage field impulse-voltage characteristics of this characteristic and magnetic-leakage type ballast is similar.This voltage even Metal halogen lamp starts easily, can not damage ballast, light source etc. again.The high voltage pulse of ordinary electronic starter can damage the insulation of electrical equipment.Load of the present utility model distance is also very big, is better than general starter, can reach more than 100 meters, i.e. and ballast, the electric wire line between starter and the light source surpasses 100 meters, and the output voltage decay of this moment is still very little.Therefore facilitate the installation, maintenance of light fixture and electrical equipment.

The utility model is better than magnetic-leakage type ballast ignition device.The voltage switch effect is arranged, promptly after light source is lighted, within the 9ms, stop starter work, be lower than certain value at supply voltage and (as 160～180V) time, also can not work.And the magnetic-leakage type ballast does not have this function.Therefore, the utility model makes current waveform factor by light source smaller or equal to common ballast, and as adding compensation, waveform correction electric capacity, form-factor can be better, and all there are raising in the luminous efficiency of light source and life-span.What the raising of form-factor had also improved light source greatly puts out phenomenon, particularly low-power light source certainly, particularly evident.

Because the utility model, the ballast of adapted ordinary construction has the voltage switch effect again, therefore cuts off the too high shortcoming of ballast-free temperature rise, has improved the useful life and the reliability of ballast and ignition device greatly.

The utility model, circuit is simple, and cost is low, and it is many that whole ignition device cost is reduced.

Because the effect of compensation, waveform correction electric capacity, the power factor (PF) of circuit is very high, can be higher than 0.9.

Description of drawings:

Fig. 1,2, the 3rd, the utility model adopts outline drawing, structure chart and the circuit diagram of the metal halide lamp electronic starter of silicon bidirection switch pipe.Wherein (2) are resonant capacitance C1; (3) be series resistor R1; (5) be silicon bidirection switch pipe SIADC.These elements include in the frame of broken lines of Fig. 3.They and pin (7) are reinstated resin and are watered and be enclosed in the box (8).(1) is ballast B; (4) be Metal halogen lamp pipe L; (6) be compensation, waveform correction capacitor C _P

Fig. 4 is that the utility model produces, and is applied to the starting voltage waveform U of lamp tube ends _o, voltage pulse output is superimposed upon input voltage U _iOn.

Fig. 5,6, the 7th, the utility model adopts outline drawing, structure chart and the circuit diagram of the metal halide lamp electronic starter of bi-directional thyristor switch circuit unit.Wherein (2) are resonant capacitor C1 in frame of broken lines; (3) be series resistor R1; (9) be bidirectional triode thyristor SCR; (10) be two-way trigger tube ST; (11) be to go up divider resistance R2; (12) be to trigger capacitor C 2; (13) be following divider resistance R3; (14) be to trigger current-limiting resistance R4.They and pin go between (7) together, water with resin to be enclosed in the box (8), and (1) is ballast B; (4) be Metal halogen lamp pipe L; (6) be compensation, waveform correction capacitor C _p

As Fig. 3, the utility model directly is connected across the two ends of light source, after energized, and when supply voltage is higher than the switch valve threshold voltage, circuit start, at this moment, resonant capacitance C produces and periodically is forced to shock oscillation voltage under the on-off action of silicon bidirection switch pipe.The peak value of pulse of its voltage and pulsewidth depend on the inductance value and the resonance capacitance of ballast.General peak value is no more than 800V, and its effective value is higher than (parameter can be adjusted) between supply voltage 50～80V, output voltage U _oSee Fig. 4.After fluorescent tube was lighted, lamp tube ends voltage descended rapidly, and the silicon bidirection switch pipe turn-offs because of voltage reduces, and circuit quits work, and the utility model is closed (promptly deactivating) automatically within 9ms in half cycle.Series resistor R1 is to protect silicon bidirection switch pipe (or controllable silicon), surge impact electric current in the regulating and controlling circuit.The circuit of Fig. 7 and Fig. 3 are roughly the same, and function equates; Just the SIADC silicon bidirection switch pipe among Fig. 3 is changed, replace with reverse-blocking tetrode thyristor circuit unit (comprising R2, R3, R4, C2, ST and six elements of SCR).Wherein R2, R3 are divider resistances, the voltage branch at SCR bidirectional triode thyristor two ends is depressed on the ST two-way trigger tube, when partial pressure value surpasses the ST threshold voltage (this moment, the SCR both end voltage was equivalent to the threshold voltage of SIADC), trigger tube ST conducting, trigger the controllable silicon SCR conducting, circuit working.The effect of C2 electric capacity provides trigger current.By regulating the resistance of R2, R3, cooperate with trigger tube ST threshold values, with regard to the operating voltage threshold values of adjustable abridged edition circuit.

The operating voltage threshold values=(R2+R3)/R3 ］ U _ST(two-way trigger tube threshold voltage)

Implement 1:

Press each components and parts in the empty frame of Fig. 3, be resonant capacitance C1(2), series resistor R1(3) with silicon bidirection switch pipe SIADC(5) requirement of connecting is welded on the circuit board shown in Figure 2, the pin (7) of burn-oning waters with resin and is enclosed in the box (8), promptly constitutes the metal halogen lamp electric starter that the utility model adopts the silicon bidirection switch pipe.

Implement 2:

Press each components and parts in the empty frame of Fig. 7, be resonant capacitance C1(2), series resistor R1(3) connect with the bi-directional thyristor switch electric appliance component, the bi-directional thyristor switch circuit unit is by bidirectional triode thyristor SCR(9) with at the silicon controlled two ends and the branch pressure-controlled branch road that connects forms divider resistance R3(13 under the route) with triggering storage capacitor C2(12) after the parallel connection again with last divider resistance R2(11) connect; And draw one the tunnel at the branch road mid point, series connection two-way trigger tube ST(10) and triggering current-limiting resistance R4(14), cause the trigger electrode of controllable silicon SCR (9).Components and parts are welded on the circuit board shown in Figure 6 by circuit requirement, the pin of burn-oning lead-in wire (7), behind debugging operating voltage threshold values, water together with resin and to be enclosed in the box (8), promptly constitute the metal halogen lamp electric starter that the utility model adopts the bi-directional thyristor switch circuit unit.

Claims

1, the electronic starter of a kind of metal-halide gas discharge lamps (band ignitor) is moulded in the shell in insulation, waters the circuit unit of envelope with resin.It is characterized in that: circuit is by silicon bidirection switch pipe (5) or bi-directional thyristor switch circuit unit, and being in series with resonant capacitance C1 (2), series resistor R1 (3) is solid state device.

2, metal-halide gas discharge lamps electronic starter according to claim 1, it is characterized in that: the circuit of bi-directional thyristor switch circuit unit is by main element bidirectional triode thyristor SCR(9) with at the controllable silicon two ends and the branch pressure-controlled branch road that connects form, divider resistance R3(13 under the route) with triggering storage capacitor C2(12) in parallel after, again with last divider resistance R2(11) formation of connecting; And the mid point at branch road draws one the tunnel, series connection two-way trigger tube ST(10) and trigger current-limiting resistance R4(14), cause the silicon controlled trigger electrode.