CN101546687A - Hot-cathode gas discharge long life lamp without filament - Google Patents
Hot-cathode gas discharge long life lamp without filament Download PDFInfo
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- CN101546687A CN101546687A CN200810066203A CN200810066203A CN101546687A CN 101546687 A CN101546687 A CN 101546687A CN 200810066203 A CN200810066203 A CN 200810066203A CN 200810066203 A CN200810066203 A CN 200810066203A CN 101546687 A CN101546687 A CN 101546687A
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Abstract
The invention relates to a hot-cathode gas discharge long life lamp without a filament, which consists of a lighting tube 1, a cylindrical main electrode 2, a ferrite core 3, an induction coil 4, a thermistor 5, a starting circuit 6 and a high-frequency electronic ballast module 7. The hot-cathode gas discharge long life lamp without the filament utilizes the thermistor and electromagnetic oven heating principle to perform induction heating on the cylindrical cathode and emit elelctrons, and does not need the filament to save precious metal resources. The hot-cathode gas discharge long life lamp without the filament draws advantages of the conventional cold-cathode and filament electrode fluorescent lamps to make up for self shortages, has small potential drop of the cathode, less sputtering and evaporation loss, no trouble of filament breakage, difficult nigrescence at two ends of the lighting tube, energy saving and environmental protection, simple production process, available and cheap materials and enormous social and economic benefits, can obviously prolong the service life of the lighting tube and improve the photoelectric efficiency, and is suitable for mass production in low cost.
Description
Technical field
The present invention relates to the electric light source field, be specifically related to office building, auditoriums, hotels, hotel eatery, enterprises and institutions' factory floor, office, the daily energy-saving illumination of machine-operated school and average family more particularly, relates to a kind of hot-cathode gas discharge long life lamp without filament.
Background technology
Illumination is the daily production of people, the indispensable part of living, and from original torch, oil lamp, to modern electric light miscellaneous, is accompanied by the progress of human society always and develops.The hair tonic of self-love enlightening understands that electricity consumption comes luminous lighting, has become the main lighting system of modern civilization society after the electric light.And in electric light source miscellaneous, at present such as fluorescent lamp, electricity-saving lamp, high and low pressure mercury lamp, sodium vapor lamp, gaseous discharge lamps such as metal halide lamp are good because of its coloured light, the light efficiency height, and comparative lifetime is grown and is become most widely used general, the electric light source of use amount maximum, small-power electronics ballast energy-saving (fluorescence) lamp generally promoted the use of of the whole world especially in recent years.Its production and use consumption are surprisingly big especially.But traditional gaseous discharge lamp such as present electricity-saving lamp, fluorescent lamp all need encapsulate many coiled filaments electrode of being made by noble metal such as tungsten, molybdenum and complicated technology in glass lamp, on filament, apply electronic emitting material again, want during lamp startup work earlier to filament energising heating.If because of the electric ballast poor performance, the filament heating is insufficient before starting, then under ionic bombardment, electrode material meeting rapid evaporation and consumption, easily cause the lamp tube ends blackout, filament blow, the glass light transmittance significantly descends, make luminous and energy-saving effect variation, fluorescent tube shortens actual life greatly, causes lamp tube service life and integrated electric ballast life seriously not to match, social resources have not only been wasted, and bad lamp abandons and can cause a large amount of electronic wastes, contaminated environment, and this has become the common fault of traditional band filament gas discharge lamp, energy-conservation (fluorescence) lamp.Though whether have the cold-cathode fluorescence lamp of heat filament to come out afterwards again, it needs very high starting resistor, makes drive circuit complicated, cost increases, and its cathode fall is big, and photoelectric conversion efficiency and safety in utilization reduce.In global energy and precious metal material resource scarcity at present, especially under the situation of power supply shortage, at tungsten cathode fluorescent lamp, electricity-saving lamp, the shortcoming and defect that traditional gaseous discharge lamp such as cold-cathode fluorescence lamp exists, improve and innovate, the long-lived electric light source of invention development novel high-efficiency and energy-saving has the huge social economic benefit undoubtedly.
Summary of the invention
The object of the present invention is to provide a kind of high-efficiency energy-saving long-life electric light source---hot-cathode gas discharge long life lamp without filament, it utilizes high-frequency electromagnetic induction heating (electromagnetic oven) principle, by ingenious design and innovative design to the gas discharge cathode fluorescent tube, utilize the electric ballast driving fluorescent lamp in start-up course, to flow through the high-frequency resonant electric current of induction coil, being opposite to does not have the cylindrical shape of filament negative electrode to carry out induction heating in the electromagnetic field, impel its temperature to raise, heat of emission electronics makes the fluorescent lamp starting the arc, discharge, luminous.Because of its production technology that has merged cold-cathode fluorescence lamp cylindrical shape cathode construction simple, it is with low cost and but heat of emission electronics after the energising heating of filament florescent lamp filament arranged, fluorescent tube starting resistor and cathode fall are reduced, the advantage that efficient improves, overcome the shortcoming and defect of the two, thereby but electric energy conversion and luminous efficiency improved the useful life of significant prolongation fluorescent tube, save noble metal resources such as tungsten, molybdenum, and can significantly reduce environmental pollution.
The object of the present invention is achieved like this, construct a kind of hot-cathode gas discharge long life lamp without filament, see accompanying drawing: it is by the interior glass lamp 1 that is coated with three primary colors high-efficiency fluorescence powder, the cylindrical shape main electrode 2 of lamp tube ends, be positioned over the FERRITE CORE 3 of the interior cross section of cylindrical shape main electrode for " worker " font, be wrapped in the induction coil 4 on the FERRITE CORE, be positioned over the capable CPTC ceramic thermal resistance 5 of cake of cylindrical shape main electrode one end two sides conduction, the start-up circuit module 6 of fluorescent tube outside and high-frequency electronic ballast module 7 are formed.Cylindrical shape main electrode 2 inner at fluorescent tube with induction coil 4 an end and wick column on an electrode leads to client A be electrically connected; A surface electrode of the other end of induction coil 4 and thermistor 5 is electrically connected; Another electrode leads to client B is connected at the fluorescent tube internal electric in another surface electrode of thermistor 5 and the wick column; Two electrode leads to client B of wick column and start-up circuit module 6 are connected in series; Two electrode leads to client A of wick column connect the output of high-frequency electronic ballast module 7, and the input termination civil power of electric ballast module 7 has so just constituted a complete application circuit.
The invention is characterized in, it is to utilize high-frequency electromagnetic induction heating (electromagnetic oven) principle to have the cylindrical metal main electrode of the sub-emitting material of high efficiency thermoelectric (electronics powder) to carry out induction heating to an end coated inner wall, impel its temperature to raise, heat of emission electronics, so common metal or the making of its alloy such as cylindrical shape main electrode 2 available copper, aluminium, nickel, iron, it is as the negative electrode of fluorescent lamp, the heat filament that does not have noble metals such as tungsten, molybdenum to make, thereby production technology is simple, with low cost, the anxiety of no fracture of wire, sturdy and durable.
Feature of the present invention also is, the drum of main electrode 2, electronics powder are coated in the design of inwall and consider, more anti-ion bombardment when making it as negative electrode, cathode substance is little to the lamp tube wall sputter vaporization, and lamp tube ends is difficult for blackout, the light transmittance height, lamp tube service life can phenomenal growth.
Feature of the present invention also is, main electrode 2 is not limited to cylindrical shape, also can be designed to other more excellent complicated shape of performance, and an end of main electrode 2 can also install the amalgam sheet or directly carry out Alloying Treatment with mercury, form amalgam, for fluorescent tube provides the solid-state mercury of stablizing environmental protection source.
Feature of the present invention also is, needed temperature of thermionic emission and heat are the induction coils 4 of utilization and its connected in electrical series in main electrode 2 start-up courses, the high-frequency resonant electric current that flows through in the thermistor 5 makes thermistor heating and in cylindrical shape main electrode 2, the eddy-current heating that induction produces in the FERRITE CORE 3 obtains, the resistance value of choose reasonable thermistor, the operating current value, the material of Curie-point temperature value and FERRITE CORE, parameters such as Curie-point temperature value, thermistor becomes high impedance by Low ESR in the time of can making electrode temperature reach certain value, the FERRITE CORE magnetic permeability descends and loses magnetism, the electric current that flows through induction coil 4 reduces, induction weakens, required electromagnetic induction heating process stopped automatically when fluorescent tube was started, be to keep almost no longer power consumption of start-up circuit in the fluorescent tube operate as normal after the operate as normal by the heat that charged ion bombardment cylinder electrode produces.
Feature of the present invention is that also load coil 4 also can be around the outside of cylindrical shape main electrode, and the motion of charged particle can also be quickened in the electromagnetic field of high frequency of its generation, helps the low pressure of fluorescent tube to start fast.
Feature of the present invention also is, postpone in the PTC in the general fluorescent lamp start circuit, and outside start-up circuit only needs a high-frequency resonant electric capacity, and circuit is simple, and the reliability height be particularly suited for U-shaped structure fluorescent lamp, but reduced volume reduces cost.
Feature of the present invention also is, can satisfy under the temperature required condition of main electrode 2 thermionic emission, the heat heated cathode that can only produce with thermistor is saved induction coil and FERRITE CORE, perhaps only passes through high-frequency current electromagnetic induction heating negative electrode with induction coil and FERRITE CORE, save thermistor, its cathode construction is further simplified, and electrode size reduces, and is more suitable for the novel high-efficiency and energy-saving fluorescent lamp slimline and adopts, production cost reduces, and the fluorescent tube light efficiency improves.
Feature of the present invention also is, as long as high-frequency electronic ballast can be operated in more than tens KHz, just can realize high-frequency induction heating, so it is less demanding to circuit of electronic ballast, adaptability is strong, and existing electric ballast technology and product can be used for reference and quote, and research and development of products expense and risk are low, invest little instant effect, be fit to apply fast.
Hot-cathode gas discharge long life lamp without filament of the present invention and existing tungsten filament heated cathode fluorescent lamp; traditional gaseous discharge lamp such as electricity-saving lamp and cold-cathode fluorescence lamp is compared; because its negative electrode adopts copper cheap and easy to get; aluminium; nickel; the metal material of anti-ion bombardment such as iron and sputter is made; shape is designed to cylindrical shape again; at one end coated inner wall has the sub-emitting material of high efficiency thermoelectric (electronics powder); heat by CPTC thermistor and the radio-frequency induction coil target that has FERRITE CORE in the start-up course; to realize thermionic emission; thereby make the fluorescent tube starting resistor low; cathode fall is little; the loss of electronic emitting material sputter vaporization is few; lamp tube ends is difficult for blackout; glass light transmission and photoelectric conversion efficiency height; the anxiety of not having fracture of wire again; so fluorescent tube can prolong actual life greatly, can be complementary with the life-span of integrated electric ballast, really accomplish high-efficiency long-life and make the best use of everything; can reduce electronic waste, help protecting environment.And the fluorescent lamp heat filament that do not have noble metals such as tungsten, molybdenum to make, thereby production technology and equipment are simple, with low cost, sturdy and durable.So this patent product has effectively overcome the shortcoming and defect of existing product, has the tangible market competitiveness and economic results in society.
Description of drawings
The present invention has only a width of cloth accompanying drawing
Embodiment
The invention will be further described below in conjunction with accompanying drawing and a hot-cathode gas discharge long life lamp without filament embodiment.
According to method of the present invention, can make about 8 millimeters an of internal diameter, 0.2 millimeter of wall thickness with the thin-walled copper tube, be about 20 millimeters cylindrical shape main electrode 2, about 8 millimeters of maximum outside diameter is inserted at the middle part, is about 10 millimeters, the cross section is I-shaped FERRITE CORE 3, is wound with induction coil 4 on it.Magnetic core 3 is divided into two chambers to cylinder electrode, and the chamber inner wall coating sub-emitting material of high efficiency thermoelectric (electronics powder) at one end is from the other end about 7 millimeters of the diameter of packing into, the patty CPTC ceramic thermal resistance 5 that thickness is 4 millimeters.Its surface electrode is electrically connected with an end of induction coil 4, and another surface electrode is welded on the lead-out wire B of tube glass stem stem by seal wire.Main electrode 2 is electrically connected with the other end of induction coil 4, and is welded to by seal wire on another root lead-out wire A of glass stem, constitutes a complete wick.Fluorescent tube 1 can adopt interior through 10 millimeter, 1.3 millimeters of wall thickness, the T5 type thin glass tube that length is 500 millimeters, traditional processing technology according to fluorescent lamp cleans, dusting, roasted tube, seal, operation such as exhaust, inflation, make a pin can with the complete high-efficiency long-life fluorescent tube more than the conventional fluorescent compatible power 20W.
Connect high-frequency electronic ballast module 7 and start-up circuit module 6 (it can be simplified to a series connection high-frequency resonant capacitor) for this fluorescent tube, input is connected the 220V electric main, in the fluorescent lamp starting stage, the high-frequency resonant electric current that flows through the series resonant tank that is made of the resonant capacitance in wick main electrode 2, induction coil 4, thermistor 5, the start-up circuit 6 can carry out high-frequency induction heating to cylindrical shape main electrode 2, the main electrode temperature is raise, impel electronics powder heat of emission electronics, the gasification ionization of mercury source, the fluorescent tube starting the arc, discharge, luminous.After fluorescent tube main electrode 2 reached stabilized operating temperature very soon, thermistor became high impedance by Low ESR automatically, and the electric current in the induction coil of series connection with it almost reduces to zero, and start-up circuit is deactivated automatically, no longer power consumption.Though this lamp does not have filament, adopted electromagnetic induction heating cathode emission electronics, so its cathode fall is little, the photoelectric conversion efficiency height.And be coated with in columnar structured and the electronics powder, not only can effectively reduce sputter, the evaporating loss of cathode substance, can avoid the early stage blackout of lamp tube ends to make degradation drawback under the glass light transmittance again, can reach more than 3 times of filament electrode gaseous discharge lamp life-span of band in the tradition its useful life, light efficiency improves more than 20%, thereby has realized the purpose of high-efficiency energy-saving long-life.
Claims (9)
1, a kind of hot-cathode gas discharge long life lamp without filament, see accompanying drawing, it is by the interior glass lamp 1 that is coated with fluorescent material, the cylindrical shape main electrode 2 of lamp tube ends, be positioned over the FERRITE CORE 3 in the cylindrical shape main electrode, be wrapped in the coil 4 on the magnetic core, be positioned over the patty CPTC ceramic thermal resistance 5 of cylindrical shape main electrode one end two sides conduction, the start-up circuit module 6 of fluorescent tube outside and high-frequency electronic ballast module 7 are formed, cylindrical shape main electrode 2 inner at fluorescent tube with induction coil 4 an end and wick column on an electrode leads to client A be electrically connected, a surface electrode of the other end of induction coil 4 and thermistor 5 is electrically connected, another electrode leads to client B is connected at the fluorescent tube internal electric in another surface electrode of thermistor 5 and the wick column, two electrode leads to client B of wick column and start-up circuit module 6 are connected in series, two electrode leads to client A of wick column connect the output of high-frequency electronic ballast module 7, and the input termination civil power of ballast module 7.
2, hot-cathode gas discharge long life lamp without filament according to claim 1, it is characterized in that, it is to utilize high-frequency electromagnetic induction heating (electromagnetic oven) principle to have the cylindrical metal main electrode of the sub-emitting material of high efficiency thermoelectric (electronics powder) to carry out induction heating to an end coated inner wall, impel its temperature to raise, heat of emission electronics, so cylindrical shape main electrode 2 available copper, aluminium, nickel, common metal or the making of its alloy such as iron, it is as the negative electrode of fluorescent lamp, there is not tungsten, the heat filament that noble metals such as molybdenum are made, thereby production technology is simple, with low cost, the anxiety of no fracture of wire, sturdy and durable.
3, hot-cathode gas discharge long life lamp without filament according to claim 1, its feature also is, the drum of main electrode 2, the electronics powder is coated in the design of inwall and considers, more anti-ion bombardment when making it as negative electrode, cathode substance is little to the lamp tube wall sputter vaporization, and lamp tube ends is difficult for blackout, the light transmittance height, lamp tube service life can phenomenal growth.
4, hot-cathode gas discharge long life lamp without filament according to claim 1, its feature also is, main electrode 2 is not limited to cylindrical shape, also can be designed to other more excellent complicated shape of performance, one end of main electrode 2 can also install the amalgam sheet or directly carry out Alloying Treatment with mercury, form amalgam, for fluorescent tube provides the solid-state mercury of stablizing environmental protection source.
5, hot-cathode gas discharge long life lamp without filament according to claim 1, its feature also is, needed temperature of thermionic emission and heat are the induction coils 4 of utilization and its connected in electrical series in main electrode 2 start-up courses, the high-frequency resonant electric current that flows through in the thermistor 5 makes thermistor heating and in cylindrical shape main electrode 2, the eddy-current heating that induction produces in the FERRITE CORE 3 obtains, the resistance value of choose reasonable thermistor, the operating current value, the material of Curie-point temperature value and FERRITE CORE, parameters such as Curie-point temperature value, thermistor becomes high impedance by Low ESR in the time of can making electrode temperature reach certain value, the FERRITE CORE magnetic permeability descends and loses magnetism, the electric current that flows through induction coil 4 reduces, induction weakens, required electromagnetic induction heating process stopped automatically when fluorescent tube was started, be to keep almost no longer power consumption of start-up circuit in the fluorescent tube operate as normal after the operate as normal by the heat that charged ion bombardment cylinder electrode produces.
6, hot-cathode gas discharge long life lamp without filament according to claim 1, its feature also is, load coil 4 also can be around the outside of cylindrical shape main electrode, and the motion of charged particle can also be quickened in the electromagnetic field of high frequency of its generation, helps the low pressure of fluorescent tube to start fast.
7, hot-cathode gas discharge long life lamp without filament according to claim 1, its feature also is, postpone in the PTC in the general fluorescent lamp start circuit, outside start-up circuit only needs a high-frequency resonant electric capacity, circuit is simple, and the reliability height is particularly suited for U-shaped structure fluorescent lamp, but reduced volume reduces cost.
8, hot-cathode gas discharge long life lamp without filament according to claim 1, its feature also is, can satisfy under the temperature required condition of main electrode 2 thermionic emission, the heat heated cathode that can only produce with thermistor, save induction coil and FERRITE CORE, perhaps only pass through high-frequency current electromagnetic induction heating negative electrode with induction coil and FERRITE CORE, save thermistor, its cathode construction is further simplified, electrode size reduces, be more suitable for the novel high-efficiency and energy-saving fluorescent lamp slimline and adopt, production cost reduces, and the fluorescent tube light efficiency improves.
9, hot-cathode gas discharge long life lamp without filament according to claim 1, its feature also is, as long as high-frequency electronic ballast can be operated in more than tens KHZ, just can realize high-frequency induction heating, so less demanding to circuit of electronic ballast, adaptability is strong, existing electric ballast technology and product can be used for reference and quote, research and development of products expense and risk are low, invest little instant effect, are fit to apply fast.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810066203A CN101546687A (en) | 2008-03-28 | 2008-03-28 | Hot-cathode gas discharge long life lamp without filament |
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| CN200810066203A CN101546687A (en) | 2008-03-28 | 2008-03-28 | Hot-cathode gas discharge long life lamp without filament |
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| CN101546687A true CN101546687A (en) | 2009-09-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868109A (en) * | 2010-06-23 | 2010-10-20 | 芜湖风云能源科技有限公司 | Amalgam temperature control device for electrodeless lamp |
| CN102194647A (en) * | 2010-03-19 | 2011-09-21 | 尹梦寒 | Double-end electromagnetic high intensity discharge (HID) |
-
2008
- 2008-03-28 CN CN200810066203A patent/CN101546687A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102194647A (en) * | 2010-03-19 | 2011-09-21 | 尹梦寒 | Double-end electromagnetic high intensity discharge (HID) |
| CN102194647B (en) * | 2010-03-19 | 2015-10-07 | 尹梦寒 | Double-end electromagnetism HID lamp |
| CN101868109A (en) * | 2010-06-23 | 2010-10-20 | 芜湖风云能源科技有限公司 | Amalgam temperature control device for electrodeless lamp |
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Open date: 20090930 |