CN2244250Y - Energy saving fluorescent desk lamp - Google Patents

Abstract

The utility model relates to an energy saving fluorescent desk lamp for illuminating families, which is composed of the specially designed direct current fluorescent lamp tube of the double lamp filaments electrode with a metal protecting belt, and a controller and a polarity-reversing switch which are matched with the direct current fluorescent lamp tube. The lamp tube of the florescent lamp is the long lamp tube shaped of which the ratio of the length L and the tube diameter phi is larger than 15, and the structure of the lamp filament electrode has no the difference of the cathode and the anode, and the polarity-reversing switch ensures that when the switch is circulated once, the cathode and the anode of the florescent lamp are exchanged once. Therefore, the characteristics are that the device substantially eliminates the electrophoresis, and has no the electromagnetic radiation and the stroboscopic effect, with safety, energy saving and long service life, and the device is the new generation ideal light source of the family illumination.

Description

A kind of energy-conservation fluorescent desk lamp

Relate to a kind of energy-conservation fluorescent desk lamp that domestic lighting is used.

All there is stroboscopic in various degree in existing desk lamp, and is serious as the stroboscopic that exchanges fluorescent desk lamp; The stroboscopic of incandescent desk lamp a little less than, but still have stroboscopic, and because be thermal light source, luminous efficiency is too low, bulb life is short.Modern scientific research proves that the stroboscopic of above-mentioned lighting source all can bring harm such as visual fatigue, eyesight decline and antimigraine to people, even causes symptoms such as intelligence decline, tachycardia to occur.Recently the electric energy-saving desk lamp of output has just been eliminated the vision stroboscopic, and because of it is operated in the high frequency state, electromagnetic interference has limited its range of application.

The purpose of this utility model is to eliminate basically contaminated environment such as the stroboscopic effect of lighting source and electron radiation interference and influence the undesirable element of health, and a kind of energy-saving safe direct current fluorescent desk lamp that does not have stroboscopic, electromagnetic-radiation-free interference is provided.

The utility model is to implement like this: higher direct voltage behind rectifying and wave-filtering is directly lighted fluorescent lamp (to save step-down transformer) for adaptive alternating current 110V of family or 220V, specialized designs a kind of big direct current pressure drop (the long pipe type DC fluorescent lamp pipe of 80V～120V), i.e. ratio＞15 of this fluorescent tube length L and caliber Φ are arranged." electrophoretic effect " that produces when overcoming long fluorescent tube by direct current; yin, yang the two poles of the earth of this fluorescent tube are designed to identical in structure K filament and P filament (promptly filamentray structure no longer includes the difference of anode and cathode in fact), and at filament two lead-in wires near respectively being welded with strip metal protection strip on the filament position.Again, for thoroughly overcome " electrophoretic effect " that long lamp tube type fluorescent tube produces and the life-span of improving fluorescent tube under the DC operation state, also specialized designs every switch once just make the anode and cathode sexual intercourse of fluorescent tube change once polarity reversing switch.

Provide the new specific embodiment of this practicality in detail below in conjunction with accompanying drawing.

Fig. 1. DC fluorescent lamp tubular construction schematic diagram.

Fig. 2. filament and stem stem structural representation.

Fig. 3. the polarity reversing switch electrical schematic diagram.

Fig. 4. the controller circuitry schematic diagram.

Wherein: 1.K filament (f ₂f ₃); 2.P filament (f ₄f ₅); 3. glass-tube; 4. fluorescent material; 5. DC fluorescent lamp pipe; 6. metal coating band; 7. heater lead; 8. blast pipe; 9. stem stem; 10. polarity reversing switch; 11. controller.

The utility model mainly is made up of DC fluorescent lamp pipe 5, suitable with it controller 11 and polarity reversing switch 10 3 parts.As shown in Figure 1, DC fluorescent lamp pipe 5 be by two identical in structure K filaments 1 and P filament 2 be sealed in be pumped into high vacuum and be filled with inert gas and the glass-tube of small amount of mercury 3 in constitute, fluorescent tube length L and caliber Φ than L/ Φ＞15, and scribble rare-earth trichromatic fluorescent powder 4 on glass-tube 3 inwalls, be filled with the krypton-argon mist of air pressure in the glass-tube 3 at 200Pa～300Pa, the krypton-argon gas ratio is determined by the required pressure drop of fluorescent tube, usually krypton gas accounts for 50%, in structure, guarantee on inflation kind and the pressure that fluorescent tube 5 has big pressure drop and DC tube pressure drop to change more among a small circle in, as variation less than ± 5V.The profile of fluorescent tube 5 can be made straight pipe type and various compact as required, as two D types, U or π type etc.

The detailed structure of above-mentioned filament 1 and filament 2 as shown in Figure 2; as the stem stem 9 that supports usefulness heater lead 7 and filament are therebetween consolidated frame; also all be welded with L shaped metal coating band 6 on filament one end of heater lead 7 simultaneously, this metal coating band 6 is in the plane substantially with helical heater.Consider be beneficial to collect that filaments sputter comes out easily at the impurity of fluorescent tube 5 two ends blackening etc., the radial dimension that the yardstick of this boundary belt 6 on Width should be a bit larger tham helical heater 1 or 2, the temperature of width is excessive then when negative electrode is made in influence filament.Above-mentioned metal coating band 6 is strip or filaments made from metallic nickel or its alloy.

Guarantee DC fluorescent lamp pipe 5 starters and the DC stabilization state controller 11 of work down, can be electronic starting formula control circuit (as shown in Figure 4) or mechanical delay switch glow starting type control circuit, technical should guarantee with the DC fluorescent lamp pipe 5 of corresponding specification suitable.The electronic starting controller of being made up of rectifying and voltage-stabilizing, electronics current stabilization and oscillating circuit (circuit) 11 is specifically by four rectifying tube D1～D ₄, multiple tube BG ₁, BG ₂, diode D ₅, voltage-stabiliser tube Z ₁And resistance R ₁, capacitor C ₁Carry out rectifying and voltage-stabilizing, require its output dc voltage to be higher than fluorescent tube pressure drop 10～15V, and improve harmonic current; Transistor BG ₃, light-emitting diode Z ₂And Z ₃And bulb W and resistance R ₂Formed the DC voltage-stabilizing electric current that guarantees DC fluorescent lamp pipe 5; Transistor BG ₄, diode D ₆, light-emitting diode Z ₂, transformer B and capacitor C ₂, C ₃, C ₄And resistance R ₃Form oscillating circuit, to guarantee hot and the fluorescent lamp starter of giving of filament, in case fluorescent tube direct current conducting work, vibration stops voluntarily.Above-mentioned transformer B is provided with elementary winding L ₁With two groups of secondary winding L ₂, L ₃, L ₂Two cutter F being electrically connected with polarity reversing switch 10 of an end A ₂, F ₃Join L ₂The other end and elementary winding L ₁Be in series, and with transistor BG ₄Collector electrode link to each other and winding L ₃Two ends and two cutter F of polarity reversing switch 10 ₄, F ₅Join, wherein F ₄Cutter and transistor BG ₃Collector electrode link to each other.

Above-mentioned polarity reversing switch 10 with controller 11 configurations, come down to four blade three throw switches, structurally should choose knob type or button type usually, structurally class is two-layer about in the of same as knob type respectively is the band switch (drawing among the figure) that two cuttves three are thrown, and clockwise direction coaxial (synchronously) rotates.

In sum, the utility model has the advantages that apparently, be characterized in eliminating Electrophoresis, no stroboscopic and electromagnetic radiation, energy-saving safe, long service life, desk lamp, Wall lamps etc. all can use, and are the perfect light sources of domestic lighting of new generation.

Claims (3)

1. relate to a kind of energy-conservation fluorescent desk lamp that domestic lighting is used, it is made up of lampshade, lamp socket, switch [10], fluorescent tube [5] and controller [11], it is characterized in that:

A. above-mentioned fluorescent tube is a direct current fluorescent tube [5], be all to be welded with L shaped metal coating band [6] on filament one end by two identical in structure K filaments [1] and P filament [2], heater lead [7] and to be sealed in the glass-tube [3] of being pumped into high vacuum and being filled with inert gas and small amount of mercury again to constitute, fluorescent tube length L and caliber than L/ Φ＞15, and scribble rare-earth trichromatic fluorescent powder [4] on glass-tube [3] inwall, be filled with the krypton-argon mist of air pressure in the glass-tube [3] at 200Pa～300Pa;

B. the electronic starting controller of forming by rectifying and voltage-stabilizing, electronics current stabilization and oscillating circuit three parts with the suitable controller [11] of DC fluorescent lamp pipe [5] [11], and suitable with the two electrode K filaments [1] and P filament [2] the reversal polarity reversing switch [10] once of every switch first order fluorescence fluorescent tube [5];

C. above-mentioned switch [10] is a polarity reversing switch that four blade three is thrown.

2. fluorescent desk lamp according to claim 1 is characterized in that above-mentioned metal coating band [6] is strip or the filament made from metallic nickel or its alloy.

3. fluorescent desk lamp according to claim 1, the profile that it is characterized in that above-mentioned DC fluorescent lamp pipe [5] can be straight pipe type and various compact, as two D types, U type or π type.

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