CN2329136Y - Electron integrated startor for day-light lamp - Google Patents

Abstract

The utility model discloses an integrated starter for a fluorescent lamp. The utility model is characterized in that the utility model is composed of an integrated support casing, a left lamp, a right lamp, and an electronic circuit. The utility model is characterized in that an RC single end start-up circuit which is matched with a protection circuit is added in the electronic circuit, and thus the lamps can stop working when an abnormal situation such as air leakage, ageing, failure, etc. is occurred, circuit overheating and short circuit are prevented, the start efficiency can be improved simultaneously, the service life of the fluorescent lamp is extended, and the entire support has beautiful and elegant appearance.

Description

A kind of electronic integral fluorescent start device

The utility model relates to a kind of electronic starting device, is a kind of electronic integral fluorescent start device specifically, belongs to the household electrical appliance class.

The fluorescent start device of more use has iron-core coil formula ballast on the market at present, and its shortcoming is that volume is big, and easily heating is big to the fluorescent tube infringement; Also have some electric ballasts to appear on the market, reducing heating, guard lamp tube side face has had some improvement, but still exists volume big, and the life-span is short, is difficult to start aging problems such as light pipe.

It is little that the purpose of this utility model provides a kind of volume, life-span length, protectiveness, the electronic integral fluorescent start device that startability is good.

The purpose of this utility model is achieved in that electronic integral fluorescent start device; mainly by bracket shell, be distributed in the left and right lamp socket at support two ends and form with the electronic circuit that left and right sides lamp socket links; electronic circuit mainly comprises bridge rectifier 1, capacitor filter 2, master oscillator circuit 4, tube circuit 5, the protective circuit 6 that is arranged in order; to start and defencive function in order realizing better, also to be associated with the single-ended start-up circuit 3 of RC that uses with protective circuit 6 couplings between the device circuit 4 at capacitor filter 2 and main swinging.

Because the utility model has added the single-ended start-up circuit part of RC in circuit; making can be more smooth and easy and effective in the fluorescent tube start-up course; and at lamp tube air leaking; aging; abnormal conditions such as inefficacy can make the fluorescent tube break-off with protective circuit 6 coupling and avoid circuit overheated or cause short circuit phenomenon, play protective effect better.

Below in conjunction with accompanying drawing the utility model is described in detail:

Fig. 1 is an electronic integral fluorescent start device circuit block diagram;

Fig. 2 is an electronic integral fluorescent start device schematic circuit;

Fig. 3 is the single-ended startup circuit of RC separated in electronic integral fluorescent start device and the schematic circuit of protective circuit coupling work.

The square frame of the band numeral of being cut apart by lines among each square frame among Fig. 1 and Fig. 2 one by one Corresponding. The single-ended startup circuit 3 of RC mainly comprises the divider resistance that is cascaded Be connected with resistance R 5 between R2, R3, R3 and the R4 and form branch road, the R3 two ends also Be associated with one and can control the capacitor C 7 that controllable silicon T3 works, the friendship of R3, R4, R5 Also have a lead and holding circuit 6 to link the resistance R 2 and the R3 that are cascaded on the point Available one equivalent resistance replaces, and using the purpose of R2 and R3 mainly is in order to reduce product The product cost, adopting equivalent resistance still is the scope of the utility model protection.

Circuit block-diagram flow process principle is as follows:

The alternating current 220V power supply behind bridge-type rectification circuit 1 again through capacitor filter 2 shapes Become pulsating dc voltage, this direct current voltage is divided into two-way, and one the tunnel sends into that RC is single-ended to be opened Moving circuit 3 makes the startup circuit produce the startup electric current and removes to trigger master oscillator circuit 4; In addition One the tunnel directly goes to 4 power supplies of master oscillator circuit, and the effect of master oscillator is with direct current Power source transition becomes 30KC to the high-frequency ac power of 50KC, and exports the fluorescent tube electricity to Road 5 makes fluorescent lamp luminous. The collocation of such circuit structure makes the fluorescent tube can be rapid Start, and the high pressure that can avoid general iron core type ballast when starting, to produce, increase The service life of fluorescent tube. Tube circuit 5 outputs one sampling circuit is given under the normal condition Holding circuit 6, this sampling undertension produces so that holding circuit is moved, when fluorescent tube leaks When the abnormal conditions such as gas, aging, inefficacy took place, sampling voltage will raise, and orders about The holding circuit action forces master oscillator circuit 4 to stop shaking, and stops to carry to tube circuit For high frequency electric, suspend lamp works, reach the purpose of protection. After this, as long as use Family power cutoff switch is changed the daylight fluorescent tube, closed power switch again, and circuit again can Again normal operation.

Particularly, the single-ended startup circuit of RC the work principle as follows:

Direct voltage+the EC that forms after rectification, the filtering divides the voltage that is pressed in A point formation 30V-50V through R2, R3, R4, and A point current potential produces the emitter junction of electric current through R5, R9 and T3, and R11 provides base current to controllable silicon T3, makes the T3 pipe be in magnifying state.Owing to the strong positive feedback effect of magnet oscillator circuit 4 forms self-oscillation, effect rapidly, reliable.After the circuit starting of oscillation work, capacitor C 7 is charged by A point telecommunications, the about 30V-35V of C7 both end voltage, and the A point is anodal.Controllable silicon T1 Triggerless under the normal condition and be in cut-off state, A point current potential is remained between the 30V-35V, does not influence the work of master oscillator circuit.When lamp tube air leaking, inefficacy, abnormal conditions such as aging, the electric current of master oscillator can increase, after taking a sample, produce triggering signal, make controllable silicon T1 triggering and conducting, A point current potential can bust be " 0 " current potential, makes the positive terminal ground connection of capacitor C 7, charging voltage on the C7 forms a negative pressure, be added between controllable silicon T3 base stage and the emitter through R9, force T3 to end, the pierce circuit failure of oscillation.+ EC forms silicon controlled through R2, R3, T1 and keeps electric current, vises the A point voltage for " 0 ", and start-up circuit can't be provided, even the negative voltage discharge on the C7 finishes, main oscillations still can't start work, thereby reaches the purpose of protection.

This electronic integral fluorescent start device also has the little characteristics of volume; can be the circuit two parts that distribute; it is bridge rectifier 1; capacitor filter 2; the single-ended start-up circuit 3 of R, C, master oscillator circuit 4 are a part; tube circuit 5, protective circuit 6 are another part, and these two parts can be installed in respectively in the left and right lamp socket, and linking with lead therebetween gets final product.Like this, promptly can guarantee operating efficiency, reach heat radiation again, and can dwindle the volume of support, each device and lamp bracket are integrated, appearance looks elegant is generous.

Embodiment: tube stand is made with the thin pellet in a shotgun cartridge of plastic-blasting, the left and right lamp socket at two ends is moulded with heat-resisting, flame retardant plastics, be provided with louvre, the circuit that is assemblied in the lamp socket is complied with the above-mentioned two large divisions of being divided into, element connects with accompanying drawing 2 and matches, wherein R2, R3 be about 43K Ω (kilo-ohm) R5 be about 330K Ω (kilo-ohm), R4 be about 13K Ω (kilo-ohm), C7 is about 10 μ F (microfarad), and all the other components and parts are numerical value and the connection in the universal circuit.Promptly can be made into the integral fluorescent lamp starting drive.

Claims (2)

1, a kind of electronic integral fluorescent start device; mainly by bracket shell, be distributed in the left and right lamp socket at bracket shell two ends and form with the electronic circuit that left and right lamp socket links; electronic circuit mainly comprises bridge rectifier (1), capacitor filter (2), master oscillator circuit (4), tube circuit (5), the protective circuit (6) that is arranged in order, and it is characterized in that: also be associated with the single-ended start-up circuit of R C (3) that uses with protective circuit (6) coupling between capacitor filter (2) and master oscillator circuit (4).

2, a kind of electronic integral fluorescent start device according to claim 1; it is characterized in that: the single-ended start-up circuit of RC mainly comprises divider resistance R2, R3, the R4 that is cascaded; be connected with resistance R 5 between R3 and the R4 and form branch road; the R5 two ends are parallel with the capacitor C 7 of may command controllable silicon T3 work, also have a lead and protective circuit (6) to link on the intersection point of R3, R4, R5.

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