CN101620966A - Cold cathode fluorescence lamp and manufacturing method thereof - Google Patents
Cold cathode fluorescence lamp and manufacturing method thereof Download PDFInfo
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- CN101620966A CN101620966A CN200810131791A CN200810131791A CN101620966A CN 101620966 A CN101620966 A CN 101620966A CN 200810131791 A CN200810131791 A CN 200810131791A CN 200810131791 A CN200810131791 A CN 200810131791A CN 101620966 A CN101620966 A CN 101620966A
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- printing opacity
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Abstract
The invention provides a cold cathode fluorescence lamp and manufacturing method thereof. The cold cathode fluorescence lamp comprises a transparent shell and an electrode; wherein the electrode is arranged at one end of the transparent shell. The manufacturing method includes: an exhaust step, namely the gas existed in the transparent shell is exhausted from the exhaust port of the transparent shell; an aeration step, namely at least one inert gas is aerated into the transparent shell; and an amalgam alloy placing step, namely an amalgam alloy is placed into a gas regulating device in advance and then transferred into the temporary storage area of the transparent shell after the exhaust step.
Description
Technical field
The present invention is about a kind of fluorescent lamp and manufacture method thereof, especially in regard to a kind of cold-cathode fluorescence lamp and manufacture method thereof.
Background technology
Cold-cathode fluorescence lamp is a kind of mercury discharge lamp, after passing through the alternating current of high-frequency and high-voltage, the electronic impact mercury vapor atoms of fluorescent tube inside makes it reach excitation state (Excited State), the mercury atom that is excited can be got back to ground state (Ground State) in the mode of emitting ultraviolet light, and the ultraviolet light that is radiated can further excite the fluorophor in the cold-cathode fluorescence lamp, to produce visible light.
The early stage mode of making mercurous cold-cathode fluorescence lamp is directly liquid mercury to be added in the fluorescent tube, but the method can't be carried out mercury content trace control, and liquid mercury vapour pressure height easily pollutes working equipment and environment, and human body is had sizable harmful effect.And the mode of making mercurous cold-cathode fluorescence lamp at present provides the fluorescent tube with luminous chamber and mercury storing chamber, the mercury piece is placed in this mercury to be put chamber and heats this mercury storing chamber, to discharge mercury to this luminous chamber, seal this luminous chamber and remove this mercury and put chamber.
Yet the step that in the above-mentioned known manufacture method mercury is discharged needs very high heating-up temperature.And mercury emission can only reach 80% at most, and remaining mercury can't utilize again and need abandon, thereby increases cost, also causes the pollution of product and environment.
Summary of the invention
In view of above-mentioned problem, purpose of the present invention can be used low-melting mercury alloy for a kind of cold-cathode fluorescence lamp and manufacture method thereof are provided in technology, improving the mercury emission, and reduces cost and product, environmental pollution.
For reaching above-mentioned purpose, cold-cathode fluorescence lamp of the present invention comprises printing opacity housing and electrode, and this electrode is arranged at an end of this printing opacity housing, and the manufacture method of cold-cathode fluorescence lamp of the present invention, comprise steps of exhausting, the exhaust outlet of this printing opacity housing is discharged the gas that is present in this printing opacity housing certainly; Aeration step charges at least one inert gas in this printing opacity housing; And the mercury alloy placement step, mercury alloy is placed in gas regulating equipment in advance, after steps of exhausting, move to again in the working area of this printing opacity housing.
This mercury alloy is placed in the insulating space of this gas regulating equipment, and is isolated by the baffle plate piston; After this steps of exhausting, this baffle plate piston is removed, allow this mercury alloy fall in this working area of this printing opacity housing.
The fusing point of this mercury alloy is lower than the operating temperature of this steps of exhausting.This steps of exhausting heats this printing opacity housing by firing equipment, makes the gas activation of the inwall that is attached to this printing opacity housing and is discharged from.This gas regulating equipment and this firing equipment can be integrated into same equipment.This inert gas is argon gas or neon.
After this aeration step, method of the present invention also comprises sealing halts suddenly, and envelope is ended this exhaust outlet of this printing opacity housing.This envelope is halted rapid the envelope by the high temperature torch and is ended this exhaust outlet.
After this envelope was halted suddenly, method of the present invention also comprised the mercury release steps, heats this printing opacity housing and makes this mercury alloy disengage mercury vapour, and wherein this mercury release temperature is less than 500 ℃.This mercury release steps heats this printing opacity housing by firing equipment.
Before this mercury release steps, method of the present invention also comprises the step of absorption impurity gas, drive this electrode by High Level AC Voltage, the material sputter that makes this electrode is in the inwall of this printing opacity housing, and wherein this electrode is arranged on this printing opacity housing by electric connection pad and drives indirectly.By this sputtering way, at the inwall formation metal level or the metallic film of contiguous this electrode, the material of this metal level or metallic film comprises nickel (Ni), molybdenum (Mo), niobium (Nb), tungsten (W), iron (Fe) or its alloy.
After this mercury release steps, method of the present invention also comprises and removes step, by the high temperature torch this working area is removed, and makes this printing opacity housing become sealing state.
Preferably, this mercury alloy comprises bismuth (Bi), tin (Sn), zinc (Zn), indium (In), plumbous (Pb) or its combination.For example this mercury alloy is Bi-Sn-Hg alloy, Zn-Hg alloy, Bi-In-Hg alloy or Bi-Pb-Sn-Hg alloy or low-melting amalgam (amalgam).Bi percentage by weight in this mercury alloy is 4.0～60wt%; The Sn percentage by weight is 38～78wt%; The percentage by weight of Hg is 3～20wt%.
For reaching above-mentioned purpose, cold-cathode fluorescence lamp of the present invention comprises the printing opacity housing; Electrode is arranged at an end of this printing opacity housing; And metal level, be arranged at the inwall that this printing opacity housing is close to this electrode, to absorb the foreign gas in this printing opacity housing.This printing opacity housing is preferably canals of stilling.
From the above, employed mercury alloy in the manufacture method of cold-cathode fluorescence lamp of the present invention, its fusing point is not subject to the operating temperature of thermal exhaust step, thus can use low-melting mercury alloy, and improve the mercury emission and avoid causing product and environmental pollution.In addition, mercury alloy of the present invention can be arranged in the gas regulating equipment, so can be after thermal exhaust, and directly mercury alloy is placed in the printing opacity housing and simplifies technology by gas regulating equipment.In addition, the present invention comprises that also the absorption impurity gas step forms metal level (or film) with the material sputter of electrode in the inwall of printing opacity housing, and metal level can absorb and be placed in unwanted foreign gas in the printing opacity housing, and promotes luminous efficiency.
Description of drawings
Figure 1A to Fig. 1 F is the manufacturing process schematic diagram according to a kind of cold-cathode fluorescence lamp of the preferred embodiment of the present invention.
[main element symbol description]
2: cold-cathode fluorescence lamp 211: exhaust outlet
22: electrode 23: fluorophor
21: printing opacity housing 212: inwall
24: metal layer A 2: working area
AC: High Level AC Voltage E2: gas regulating equipment
E21: insulating space E22: baffle plate piston
F2: torch H2, H3: firing equipment
M2: mercury alloy P: electric connection pad
Embodiment
Hereinafter with reference to correlative type, cold-cathode fluorescence lamp and manufacture method thereof according to the preferred embodiment of the present invention are described.
Below with the manufacture method of the cold-cathode fluorescence lamp of Figure 1A to Fig. 1 F explanation preferred embodiment of the present invention.
Shown in Figure 1A, printing opacity housing 21 at first is provided, pair of electrodes 22 is arranged in the printing opacity housing 21, electrode 22 is arranged at the two ends of printing opacity housing 21.Printing opacity housing 21 can be canals of stilling.The material of electrode 22 can comprise nickel (Ni), molybdenum (Mo), niobium (Nb), tungsten (W), iron (Fe) or its alloy, and certainly, the material of electrode 22 also can be other metal or alloy.In addition, also be provided with fluorophor 23 in the printing opacity housing 21, fluorophor 23 is positioned on the inwall of printing opacity housing 21.
The manufacture method of present embodiment comprises steps of exhausting, and it heats this printing opacity housing 21 and discharges gas from the exhaust outlet 211 of this printing opacity housing 21.The exhaust of this steps of exhausting is carried out exhaust by gas regulating equipment E2 to this printing opacity housing 21, and foreign gas can be discharged from exhaust outlet 211.Simultaneously, by firing equipment H2 (for example electric stove) heating printing opacity housing 21 so that be attached to printing opacity housing 21 inwall gas activation and be discharged from.In addition, above-mentioned gas regulating equipment E2 and firing equipment H2 also can be integrated into same equipment.
In the present embodiment, mercury alloy M2 can be placed in the gas regulating equipment E2 in advance, for example is to be placed in the insulating space E21 of gas regulating equipment E2, and is isolated by baffle plate piston E22.
Please refer to shown in Figure 1B, after steps of exhausting, E22 removes with the baffle plate piston, can allow mercury alloy M2 fall in the working area A2 of printing opacity housing 21.Because the mercury alloy M2 of present embodiment is placed in the gas regulating equipment E2 in advance, so mercury alloy M2 directly falls to working area A2 by gas regulating equipment E2, does not need other equipment and step to put mercury alloy M2, thereby can simplify technology.
The mercury alloy M2 of present embodiment comprises bismuth (Bi), tin (Sn), zinc (Zn), indium (In), plumbous (Pb) or its combination, for example be Bi-Sn-Hg alloy, Zn-Hg alloy, Bi-In-Hg alloy or Bi-Pb-Sn-Hg alloy, certainly, other have low-melting amalgam (amalgam) and also can be applicable to present embodiment.With mercury alloy Bi-Sn-Hg is example, and the percentage by weight of Bi is about 4.0～60wt%; The percentage by weight of Sn is about 38～78wt%; The percentage by weight of Hg is about 3～20wt%, and the mercury release temperature is less than 500 ℃.The employed mercury alloy of present embodiment can have than low melting point, and promptly the fusing point of mercury alloy can be lower than the operating temperature of steps of exhausting.
The manufacture method of present embodiment also comprises aeration step, and it charges at least one inert gas in the printing opacity housing 21.In the present embodiment, aeration step charges into inert gas (for example argon gas and neon) in the printing opacity housing 21 by gas regulating equipment E2 (also having aerification function); Certainly, aeration step also can be inflated by other chargers.Inert gas can form plasma under the driving of high-frequency and high-voltage alternating current.
Shown in Fig. 1 C, the manufacture method of present embodiment also comprises sealing halts suddenly, and its envelope is ended the exhaust outlet 211 of printing opacity housing 21.End exhaust outlet 211 in this by high temperature torch F2 envelope.
Shown in Fig. 1 D, the manufacture method of present embodiment also comprises the step of absorption impurity gas, it drives two electrodes 22 by High Level AC Voltage AC, wherein electrode 22 is to be arranged on the printing opacity housing 21 and to drive indirectly by electric connection pad P, makes the inwall 212 of the material sputter of electrode 22 in printing opacity housing 21.By sputter, can form metal level 24 (or metallic film) at the inwall 212 of adjacent electrode 22, and its material is identical with at least a portion material of this electrode 22.In the present embodiment, the material of metal level 24 can comprise nickel (Ni), molybdenum (Mo), niobium (Nb), tungsten (W), iron (Fe) or its alloy.Metal level 24 is the activated metal layer, can combine with unwanted foreign gas in the printing opacity housing 21, to improve luminous efficiency.The inner impurity of fluorescent tube is reduced to a certain degree in advance, can does not excite the back not combine, effective mercury is reduced, and reduce impurity to combine and be deposited on and make the luminous efficiency attenuating on the fluorophor with mercury at follow-up mercury with mercury.
Shown in Fig. 1 E, after the absorption impurity gas step, manufacture method of the present invention also comprises the mercury release steps, and its heating printing opacity housing 21 disengages the mercury element of mercury alloy M2 and forms mercury vapour.In the present embodiment, the mercury release steps is by firing equipment H3 heating printing opacity housing 21, and firing equipment H3 for example is electric stove, can be same equipment with firing equipment H2 also.After heating, the gasification of the mercury element of mercury alloy M2 also migrates to zone between two electrodes 22.Because the fusing point of the employed mercury alloy M2 of present embodiment is lower, so do not need the operating temperature of higher temperatures to heat, also need implement mercury and drive step, thereby can reduce cost and use equipment, and simplify technology.
Shown in Fig. 1 F, after the mercury release steps, manufacture method of the present invention comprises also and removes step that it removes working area A2.Working area A2 is removed by high temperature torch F2 in this, and make 21 one-tenth sealing states of printing opacity housing.
Be depicted as a kind of cold-cathode fluorescence lamp 2 of the preferred embodiment of the present invention as Fig. 1 F, it comprises printing opacity housing 21, electrode 22 and metal level 24, because said elements is specified in, so repeat no more in this.
In sum, employed mercury alloy is low-melting mercury alloy in the manufacture method of cold-cathode fluorescence lamp of the present invention, and its fusing point is lower than the heating operation temperature of steps of exhausting, and can improve the mercury emission, to avoid product and environmental pollution.In addition, mercury alloy of the present invention can be arranged in the gas regulating equipment, so can be after exhaust, and directly be placed in the printing opacity housing and simplify technology by gas regulating equipment.In addition, the present invention comprises that also the absorption impurity gas step forms metal level (or film) with the material sputter of electrode in the inwall of printing opacity housing, and metal level can absorb and be placed in unwanted foreign gas in the printing opacity housing, and promotes luminous efficiency.
The above only is the character of giving an example, but not is restriction character.Anyly do not break away from spirit of the present invention and category, and, all should be included in the claim its equivalent modifications of carrying out or change.
Claims (21)
1, a kind of manufacture method of cold-cathode fluorescence lamp, this cold-cathode fluorescence lamp comprises printing opacity housing and electrode, and this electrode is arranged at an end of this printing opacity housing, and the step of this method comprises:
Steps of exhausting, the exhaust outlet of this printing opacity housing is discharged the gas that is present in this printing opacity housing certainly;
Aeration step charges at least one inert gas in this printing opacity housing; And
The mercury alloy placement step is placed in gas regulating equipment in advance with mercury alloy, moves in the working area of this printing opacity housing after steps of exhausting again.
2, manufacture method as claimed in claim 1, wherein this mercury alloy is placed in the insulating space of this gas regulating equipment, and is isolated by the baffle plate piston;
After this steps of exhausting, this baffle plate piston is removed, allow this mercury alloy fall in this working area of this printing opacity housing.
3, manufacture method as claimed in claim 1 or 2, wherein the fusing point of this mercury alloy is lower than the operating temperature of this steps of exhausting.
4, manufacture method as claimed in claim 1 or 2, wherein this steps of exhausting heats this printing opacity housing by firing equipment, makes the gas activation that is attached to wall within this printing opacity housing and is discharged from.
5, manufacture method as claimed in claim 4, wherein this gas regulating equipment and this firing equipment are integrated into same equipment.
6, manufacture method as claimed in claim 1 or 2, wherein this inert gas is argon gas or neon.
7, manufacture method as claimed in claim 1 or 2, wherein after this aeration step, it also comprises sealing halts suddenly, ends this exhaust outlet of this printing opacity housing with envelope.
8, manufacture method as claimed in claim 7, wherein this envelope is halted rapid only this exhaust outlet of high temperature torch envelope that passes through.
9, manufacture method as claimed in claim 7, wherein after this envelope was halted suddenly, it also comprised the mercury release steps, heats this printing opacity housing and makes this mercury alloy disengage mercury vapour.
10, manufacture method as claimed in claim 9, wherein this mercury temperature of disengaging is less than 500 ℃.
11, manufacture method as claimed in claim 9, wherein this mercury release steps heats this printing opacity housing by firing equipment.
12, manufacture method as claimed in claim 9, wherein before this mercury release steps, it also comprises the step of absorption impurity gas, drives this electrode by High Level AC Voltage, the material sputter that makes this electrode is in the inwall of this printing opacity housing.
13, manufacture method as claimed in claim 12 wherein forms metal level or metallic film by this sputter process at the inwall that is close to this electrode, and the material of this metal level or metallic film comprises nickel, molybdenum, niobium, tungsten, iron or its alloy.
14, manufacture method as claimed in claim 12, wherein this electrode is arranged on this printing opacity housing by electric connection pad and drives indirectly.
15, as claim 9 or 12 described manufacture methods, wherein after this mercury release steps, it also comprises and removes step, by the high temperature torch this working area is removed, and makes this printing opacity housing become sealing state.
16, manufacture method as claimed in claim 1, wherein this mercury alloy comprises bismuth, tin, zinc, indium, lead or its combination.
17, manufacture method as claimed in claim 1, wherein this mercury alloy is Bi-Sn-Hg alloy, Zn-Hg alloy, Bi-In-Hg alloy or Bi-Pb-Sn-Hg alloy or low-melting amalgam.
18, manufacture method as claimed in claim 17, wherein the Bi percentage by weight in this mercury alloy is 4.0～60wt%; The Sn percentage by weight is 38～78wt%; The percentage by weight of Hg is 3～20wt%.
19, a kind of cold-cathode fluorescence lamp, with as claim 1, arbitrary described method is made in 2,16,17,18.
20, a kind of cold-cathode fluorescence lamp comprises:
The printing opacity housing;
Electrode is arranged at an end of this printing opacity housing; And
Metal level is arranged at the inwall that this printing opacity housing is close to this electrode, to absorb the foreign gas in this printing opacity housing.
21, cold-cathode fluorescence lamp as claimed in claim 20, wherein the material of this electrode and metal level comprises nickel, molybdenum, niobium, tungsten, iron or its alloy respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810131791A CN101620966A (en) | 2008-06-30 | 2008-06-30 | Cold cathode fluorescence lamp and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810131791A CN101620966A (en) | 2008-06-30 | 2008-06-30 | Cold cathode fluorescence lamp and manufacturing method thereof |
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| CN101620966A true CN101620966A (en) | 2010-01-06 |
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| CN200810131791A Pending CN101620966A (en) | 2008-06-30 | 2008-06-30 | Cold cathode fluorescence lamp and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154575A (en) * | 2010-02-11 | 2011-08-17 | 上海宝临防爆电器有限公司 | Amalgam for electrodeless lamp |
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2008
- 2008-06-30 CN CN200810131791A patent/CN101620966A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154575A (en) * | 2010-02-11 | 2011-08-17 | 上海宝临防爆电器有限公司 | Amalgam for electrodeless lamp |
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Open date: 20100106 |