CN2607713Y - Ballast for high-frequency fast starting single-electrode fluorescent lamp set - Google Patents

Abstract

The utility model relates to a ballast for the high frequency quick start mono-pole fluorescent light, which generates a 70-80 KHz high frequency electric field and allows the prior fluorescent light to connect with the ballast in parallel after the four poles on both ends serially connected; moreover, the light tube whose lamp wire is broken can be still used as long as the tube does not leak air. As long as the total power does not exceed the permissible rated power of the inversion oscillator, only two wires are required to connect the ballast and the fluorescent light. The utility model has the features of small size, quick construction, low cost, comfortable visual effect, energy efficiency and long lifetime.

Description

High frequency starts single electrode fluorescent lamp group ballast fast

Technical field the utility model relates to a kind of fluorescent lighting decoration electric ballast, especially can connect the effective plain conductor single electrode of existing straight type both-end bipolar electrode conventional fluorescent lamps in groups that high frequency starts use fast, the high frequency that ballast also only uses with two lead single electrodes series connection between the one pole fluorescent lamp group of having connected starts single electrode fluorescent lamp group ballast fast.

Background technology is present; known electronic ballast for fluorescent lamps is by separation filter; rectifier; over-voltage over-current protection circuit; the synchrolock frequency circuit; the inversion oscillator; electronic devices and components such as main output loading inductance and electric capacity are formed; be referred to as high frequency and start " non-preheating type " fast although also have; even also have with two or one with three electronic ballast for fluorescent lamps; but four pins that all are every tubes are four electrodes all will be connected respectively with ballast; in the illumination construction; will a large amount of numerous and diverse connection leads appear; sometimes to special engineering; bring the technical indicator of constructional difficulties or restriction engineering; because a large amount of numerous and diverse connection leads bring the potential safety hazard of many constructions; although each in addition switch is taked the measure of some preheat starting circuits, all the burn-out life in the fluorescent tube is caused loss.

Summary of the invention is in order to overcome those problems that existing electronic ballast for fluorescent lamps is mentioned in background technology, a kind of high frequency of the present utility model starts single electrode fluorescent lamp group ballast fast, this ballast not only has all advantages of electronic ballast for fluoresent lamp, and can low cost solve existing electric ballast existence deficiency again, the high frequency that ballast also only uses with two lead single electrode series connection between the one pole fluorescent lamp group of having connected starts single electrode fluorescent lamp group ballast fast, and the fluorescent tube that broken of filament, as long as air tight still series connection wherein continues to use, and can be used for decorating the flicker illumination as neon light.

The technical scheme that its technical problem that solves the utility model adopts is that the capacitor C 3 in the electronic-circuit diagram of existing general electric ballast changes 10n100V into by general 22n100V, again resistance R 9 is changed into about 240K about by general 330K, again with L2 among the main output loading inductance T2 respectively with capacitor C 7 and C8.Inductance parameters is modulated to about 0.7mH by 1.4mH, and the capacitance that will start capacitor C 7 and C8 again changes 4.7n1600V into, is equipped with corresponding accelerating circuit.Only this produces abundant high order harmonic and high-frequency electric field (70-80KHz) in the high-frequency inverter of this electric ballast, the ionization fast under the effect of high-frequency electric field of mixing mercury vapour in the fluorescent lamp group each fluorescent tube, produce glow discharge, thereby the high frequency that has played high real meaning starts the high frequency startup effect fast of single electrode fluorescent lamp group ballast fast.

The new beneficial effect of this practicality is in the use of fluorescent lamp, minimum loss is caused in the more existing electronic ballast for fluorescent lamps of electrode in the fluorescent tube, filament in the fluorescent tube has used this ballast to eliminate the hidden danger that filament has broken, the fluorescent tube of filament even if broken, as long as air tightly still can use, as long as gross power is no more than the rated power that the inversion oscillator is passed through, can be connected in series in groups by the direct single electrode of many fluorescent tubes, connecting line between ballast and the fluorescent lamp group is reduced to only two, accelerated speed of application greatly, and reduced engineering cost, improved coefficient of safety.Especially make the use of closing in ultrathin advertising lamp box.

Description of drawings further specifies the utility model below in conjunction with drawings and Examples.Fig. 1 is the new circuit diagram of this practicality.F1 in Fig. 1; the 2A fuse; the VR1.390V piezo-resistance, C12.C16 filter capacitor, L1 filter inductance; the D1.D2.D3.D4.IN4007 rectifier diode; the C1.33uF400V electrochemical capacitor, C2.470P250V electric capacity, PTR1.0.9A250V is from recovering dangerous resistance; R2.820K resistance R 9240KD12.D5.D6.D7.D8.D9.D10.D13.D14.D15FR107 high speed diode; the D11.D16 bidirectional trigger diode, Q1.Q2.13005 switch triode, Q3 controllable silicon; the 2:5 coil of T1.W1.W2.W3 diplopore magnetic core coiling; C5.C6.100N400V electric capacity, C7.C8.4.7n1600V electric capacity R3.R8.22 Ohmic resistance, R5; R7; 0.33 Ohmic resistance, the R4.R6.6.2 Ohmic resistance, T2.L2.E-E magnetic core 0.18 enamelled wire stereotyped writing and around; head closes the tail branch; L=0.7mH, L3 are the different abnormal protections of 0.35 enamelled wire, six circle secondaries, R1.5.1K resistance; R11.2.2K resistance; R10.820K resistance, C11.47uF50V electrochemical capacitor, C18.4.7uF16V electrochemical capacitor.

This ballast at first carries out protection from transients by insurance and piezo-resistance to voltage at the input of power supply; subsequently again through the anti-electromagnetic interference of (EMI) filter; the output of rectifier is connected to from recovering insurance resistance; because the sawtooth waveforms vibration that RC is R9.240K.C3.10n100V and bidirectional trigger diode to be formed; its frequency of oscillation is by the time decision of RC; the capacitance-resistance parameter is in case determine; frequency of oscillation is also relatively stable; remove to trigger the inversion oscillator with this frequency, make the genlocing of inversion oscillator frequency of oscillation on the frequency multiplication of this frequency.The inversion oscillator is owing to the positive feedback vibration that is the degree of depth, so waveform is the non-sine type.Because therefore the fundamental frequency of oscillator is locked on its frequency multiplication by above-mentioned RC sawtooth waveforms vibration synchronous triggering, high-frequency electric field is about (70-80KHz).

Embodiment is carried out designing and producing of printed substrate by the parameter of each position electronic component of being given in figure and the explanation, all electronic components are pressed the figure firm welding, at last that coiling is good inductance coil L2 device is on the magnetic core of E-E28, according to the load gross power of fluorescent lamp group of terminal, as being that the fluorescent lamp connection in series-parallel inductance value of four 20W is 0 among the figure.7mH inserts preferably that homemade " " board 8793 and 8796 fluorescent lamp special tests are debugged various inductance parameters with instrument to blue or green intelligence.

Claims (4)

1, a kind of high frequency starts single electrode fluorescent lamp group ballast fast, be electrically connected in the illumination and decoration use in the fluorescent lamp group with existing both-end four electrodes, it is characterized in that: the high frequency of generation 70-80KHz high-frequency electric field starts single electrode fluorescent lamp group ballast fast and existing both-end four electrode fluorescence lamp groups only need be carried out the access of single electrode series and parallel.

2, high frequency according to claim 1 starts single electrode fluorescent lamp group ballast fast, it is characterized in that: the fluorescent tube that filament has broken, as long as air tight, still available two leads are cascaded and continue normal the use.

3, high frequency according to claim 1 starts single electrode fluorescent lamp group ballast fast, it is characterized in that: as long as gross power is no more than the rated power that the inversion oscillator is allowed, can directly be connected in series use in groups by many lamps.

4, high frequency according to claim 1 starts single electrode fluorescent lamp group ballast fast, it is characterized in that: high frequency starts single electrode fluorescent lamp group ballast fast and is connected lead with the fluorescent lamp group and can subtracts and minimumly only be two.