CN2173486Y

CN2173486Y - Electronic starter for fluorescent lamp

Info

Publication number: CN2173486Y
Application number: CN 93244932
Authority: CN
Inventors: 陈云根
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-12
Filing date: 1993-11-12
Publication date: 1994-08-03
Anticipated expiration: 2003-11-12

Abstract

The utility model relates to an electronic starter for a fluorescent lamp. At present, both ends of fluorescent lamps started by mechanical starters after used for some time turn black. Thus, the service life of the lamps is influenced. The starting circuit of the electronic starter for a fluorescent lamp of the utility model is composed of a rectification voltage stabilizing circuit (3), a self protection circuit (4), a timing circuit (5) and a starting circuit (6). After switched on, the starting circuit (6) begins to work and lightens the lamp when the starting circuit (6) receives signals generated from the timing circuit (5). The utility model has the characteristics of low failure rate, wide working voltage range, long service life of the lamp, etc.

Description

Electronic starter for fluorescent lamp

The utility model relates to a kind of electronic starter for fluorescent lamp.

The working method of present common inductance type ballast fluorescent lamp is: a starter is being controlled the starter of fluorescent tube, the operating current of ballast restriction fluorescent tube, and the high pressure that produces in the build-up of luminance process is lighted fluorescent lamp.Approach daylight because of its power consumptive province, luminous efficiency height, temperature rise are low, photochromic and be widely used, but owing to reasons such as its failure rate height, fluorescent tube useful life is short have limited popularizing of fluorescent lamp, use amount is far away from incandescent lamp.Common inductance type ballast fluorescent lamp is when work, the working temperature of filament is higher, filament emitting electrons near (a), (c) two ends is many, and the stage casing is few to the filament emitting electrons at (b), (d) two ends, thereby the filament temperature near (a), (c) two ends is obviously raise, filament temperature near (b), (d) two ends is low, and the filament working temperature is just very inhomogeneous like this, can be subjected to very big influence the useful life of filament and emitting substance.After using a period of time, stain just appears in lamp tube ends, and is extended to black astragal gradually, has a strong impact on the life-span of fluorescent tube.And the fault of fluorescent lamp mainly is to be starter, the starter of common inductance type ballast fluorescent lamp is the mechanical type starter, this starter is when fluorescent lamp is worked, the electric current that flows through raises its two flexure strip temperature, the high pressure that disconnect to produce and light fluorescent tube, so the material of the quality of starter and flexure strip, quality, manufacturing process have very big relation.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art and provides a kind of failure rate of fluorescent lamp that makes low, a kind of electronic type starter device of fluorescent tube long service life.

The utility model is realized in the following manner.

The circuit of the starter wiring board (2) of this electronic starter for fluorescent lamp comprises regulator rectifier circuit (3), opens striking circuit (6), self-protection circuit (4) and timing circuit (5) are formed; wherein the output of the input of self-protection circuit (4) and striking circuit (6) and regulator rectifier circuit (3) joins; self-protection circuit (4) exports timing circuit (5) to; timing circuit (5) exports striking circuit (6) to, and striking circuit (6) exports fluorescent tube to.

By capacitor C 6, C7, relay K S, resistance R 4, R5,7 pin of IC, capacitor C 8, the normal open switch KS1 of C9 and relay, KS2, normally closed switch KS3, KS4 forms starting circuit (6), wherein capacitor C 7, relay K S, resistance R 5 is series loops, the contact mutually of capacitor C 7 and resistance R 5 is connected on 4 pin of IC, capacitor C 6, after resistance R 4 parallel connections, be connected between 7 pin of the contact mutually of relay K S and resistance R 5 and IC, relay normally open K switch S1, KS2 is connected on the jack (a) at fluorescent lamp two ends respectively, (b) and (c), (d) between, capacitor C 8, C9 respectively with relay normally closed switch KS3, after the KS4 parallel connection, be connected on the jack (b) of fluorescent lamp, (d) between.

Self-protection circuit (4) is made up of 2 pin of resistance R 1, capacitor C 1, diode D2 and IC; wherein R1 is connected between 2 pin and 1 pin of IC; capacitor C 1 is connected between 4 pin and 2 pin of IC, and one of diode D2 terminates at 2 pin of IC, and the other end links to each other with the contact mutually of resistance R 2 and capacitor C 2.

Timing circuit (5) is made up of resistance R 3 and capacitor C 3, after resistance R 3 and capacitor C 3 series connection, is connected between 3 pin and 1 pin of IC.

The utility model is compared with existing starter for fluorescent, have fault low, make characteristics such as fluorescent tube long service life, operating voltage range are wide, simple in structure, low cost of manufacture.

The embodiment that provides below by accompanying drawing comes that the utility model will be further described.

Fig. 1 is the profile of the utility model shell.

Fig. 2 is a circuit frame principle figure of the present utility model.

Fig. 3 is a circuit diagram of the present utility model.

Among Fig. 1, (1) expression shell; (2) expression starter wiring board.

Among Fig. 2, (3) expression regulator rectifier circuit; (4) expression self-protection circuit; (5) expression timing circuit; (6) expression starting circuit;

Referring to Fig. 2; power supply is after regulator rectifier circuit (3) voltage stabilizing; import self-protection circuit (4) and starting circuit (6) respectively, timing circuit (4) is exported a signal to starting circuit (6) after delaying time, and fluorescent tube was lighted in i.e. starting after starting circuit (6) was received this triggering signal.

Referring to Fig. 3, the energized K switch, two groups of filaments of fluorescent tube RR form the loop through normally closed switch KS3, the KS4 of relay K S, and filament begins heating.The control power supply is taken from Inductive ballast L two ends, and the direct voltage behind the rectifying and voltage-stabilizing of being made up of D1, R6, KS, R5, DW1, C5 is 555 o'clock basic integrated packages for the IC(model) 4 pin and 8 pin.R2, C2 make 3 pin of IC place high potential at the instantaneous trigger IC of power connection, and the discharge tube of IC7 pin is ended, and KS does not have the adhesive condition and not adhesive.When R3, C3 time-delay discharge made the IC3 pin put electronegative potential, the high pressure of the circuit moment generation of being made up of 7 pin, DW2, C7, the KS of R5, R4, IC made the KS adhesive, and by the adhesive of keeping KS by the electric current of R6, KS, R5, DW1, D1.After the KS adhesive, the high pressure spot that normally closed switch KS3, KS4 disconnection produces is lit a lamp and is managed RR, normal open switch KS1, KS2 closure, the filament at fluorescent tube RR two ends is by short circuit, a whole like this filament all participates in emitting electrons, and the temperature of filament is also more even, can be owing to the filament local temperature is too high, form black astragal, thereby prolonged the life-span of fluorescent tube.Because the power supply of starter has adopted the electronic regulation circuit, so the fluctuation of voltage is little to its influence, generally all can work between 170V～250V.Brownout or fluorescent tube are aging and can not light the time, the instantaneous dead electricity of circuit, and KS discharges, and KS3, KS4 closure enter the second starter state, light until fluorescent tube.Behind the starter several times, the self-protection circuit that 2 pin of R1, D2, C1 and IC are formed is worked, and makes 2 pin of IC place electronegative potential; C3 can not charge and IC is no longer resetted, so KS can not adhesive, the filament of fluorescent tube is in heated condition forever; do not lighted, got rid of up to fault.

Claims

1, a kind of electronic starter for fluorescent lamp; this electronic starter for fluorescent lamp is made up of shell (1) and starter wiring board (2); the circuit of its starter wiring board (2) comprises regulator rectifier circuit (3); it is characterized in that it also comprises starting circuit (6), self-protection circuit (4) and timing circuit (5); wherein the input of self-protection circuit (4) and starting circuit (5) and regulator rectifier circuit (3) output join; self-protection circuit (4) exports timing circuit (5) to; timing circuit (5) exports starting circuit (6) to, and starting circuit exports fluorescent tube to.

2, electronic starter for fluorescent lamp according to claim 1, it is characterized in that starting circuit (6) is by capacitor C 6, C7, relay K S, resistance R 4, R5,7 pin of IC, capacitor C 8, the normal open switch KS1 of C9 and relay, KS2, normally closed switch KS3, KS4 forms, wherein capacitor C 7, relay K S, resistance R 5 is series loops, the contact mutually of capacitor C 7 and resistance R 5 is connected on 4 pin of IC, capacitor C 6, after resistance R 4 parallel connections, be connected between 7 pin of the contact mutually of relay K S and resistance R 5 and IC, relay normally open K switch S1, KS2 is connected on the jack (a) at fluorescent lamp two ends respectively, (b) and (c), (d) between, capacitor C 8, C9 respectively with relay normally closed switch KS3, after the KS4 parallel connection, be connected on the jack (b) of fluorescent lamp, (d) between.

3, electronic starter for fluorescent lamp according to claim 1; it is characterized in that self-protection circuit (4) is made up of 2 pin of resistance R 1, capacitor C 1, diode D2 and IC; wherein R1 is connected between 2 pin and 1 pin of IC; capacitor C 1 is connected between 4 pin and 2 pin of IC; one of diode D2 terminates at 2 pin of IC, and the other end links to each other with the contact mutually of resistance R 2 and capacitor C 2.

4, electronic starter for fluorescent lamp according to claim 1 is characterized in that timing circuit (5) is made up of resistance R 3 and capacitor C 3, after resistance R 3 and capacitor C 3 series connection, is connected between 3 pin and 1 pin of IC.