JPH0785846A - Tubular bulb - Google Patents
Tubular bulbInfo
- Publication number
- JPH0785846A JPH0785846A JP22705393A JP22705393A JPH0785846A JP H0785846 A JPH0785846 A JP H0785846A JP 22705393 A JP22705393 A JP 22705393A JP 22705393 A JP22705393 A JP 22705393A JP H0785846 A JPH0785846 A JP H0785846A
- Authority
- JP
- Japan
- Prior art keywords
- bulb
- foil
- lead
- gap
- outer conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims abstract description 35
- 239000011888 foil Substances 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims abstract description 5
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229940112669 cuprous oxide Drugs 0.000 claims abstract description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 abstract description 9
- 229910052736 halogen Inorganic materials 0.000 description 10
- 150000002367 halogens Chemical class 0.000 description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 7
- 229910052750 molybdenum Inorganic materials 0.000 description 6
- 239000011733 molybdenum Substances 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 239000000020 Nitrocellulose Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- MLFHJEHSLIIPHL-UHFFFAOYSA-N isoamyl acetate Chemical compound CC(C)CCOC(C)=O MLFHJEHSLIIPHL-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001220 nitrocellulos Polymers 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229940117955 isoamyl acetate Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は照明用や赤外線用等に使
用されるハロゲン電球等の管球に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bulb such as a halogen bulb used for illumination or infrared rays.
【０００２】[0002]
【従来の技術】従来、照明用や赤外線用などに使用され
るハロゲン電球は、石英ガラス製の直管形バルブの両端
部に封着体としてモリブデン導入箔をそれぞれ埋設して
ピンチ封止されている。この導入箔の一端部には内導体
が接続されており、バルブ内に導入され両内導体間にタ
ングステンフィラメントが張架されている。また、導入
箔の他端部には例えばモリブデン線からなる外導体が接
続されバルブ外に導出されており、バルブ内にはアルゴ
ンなどの不活性ガスとともに所要のハロゲンが封入され
ている。2. Description of the Related Art Conventionally, halogen bulbs used for illumination and infrared rays are pinched and sealed by burying molybdenum introducing foils as sealing bodies at both ends of a straight tube type bulb made of quartz glass. There is. An inner conductor is connected to one end of the introduction foil, and is introduced into the bulb and a tungsten filament is stretched between the inner conductors. In addition, an outer conductor made of, for example, molybdenum wire is connected to the other end of the introduction foil and is led out of the valve, and a required halogen is enclosed in the valve together with an inert gas such as argon.
【０００３】[0003]
【発明が解決しようとする課題】このようなハロゲン電
球では、モリブデン導入箔を封止して封止部を形成す
る。このとき、極薄肉厚の導入箔は封止部に気密封着さ
れるが、外径の大きい外導体は石英ガラスより熱膨張率
が大きいので、ピンチ後の冷却過程において、石英ガラ
スより外導体の方がより大きく収縮し、両者の間に微小
の隙間が発生する。In such a halogen bulb, a molybdenum introducing foil is sealed to form a sealing portion. At this time, the introduction foil having an extremely thin thickness is airtightly adhered to the sealing portion, but since the outer conductor having a large outer diameter has a higher coefficient of thermal expansion than the quartz glass, the outer conductor is made more than the quartz glass in the cooling process after the pinch. Contracts more greatly, and a minute gap is generated between the two.
【０００４】このようなハロゲン電球を点灯すると封止
部が高温となり、封止部の外導体の外周部分にできた隙
間に侵入し存在する空気によって導入箔が徐々に酸化
し、ついには気密性が失われ、電球は不点灯となるとい
う問題があった。When such a halogen bulb is lit, the temperature of the sealing portion becomes high, and the air introduced into the gap formed in the outer periphery of the outer conductor of the sealing portion gradually oxidizes the introduction foil, and finally the airtightness is improved. There is a problem that the light bulb is lost and the light bulb goes out.
【０００５】本発明はこのような問題を解決するために
なされたもので、封止部と外導体との隙間に侵入した空
気によって導入箔が酸化することのない管球を提供する
ことである。The present invention has been made to solve such a problem, and an object thereof is to provide a bulb in which the introduction foil is not oxidized by the air that has entered the gap between the sealing portion and the outer conductor. .
【０００６】[0006]
【課題を解決するための手段】本発明の管球は、バルブ
内に発光部材が収容され、前記バルブの端部に、導入箔
とこの導入箔に一端部が接続され他端部に前記発光部材
が接続された内導体と、前記導入箔に一端部が接続され
他端部が前記バルブ外に導出された外導体からなる導入
導体が封止された封止部を有する管球であって、前記封
止部と前記外導体との隙間部分に酸化珪素と酸化アルミ
と酸化第１銅の化合物とを主体とする充填材が充填され
ており、前記充填材の熱膨張係数が６×１０-7／℃〜１
２×１０ -7／℃で、ヤング率が７０〜８０ＧＰａである
構成を有する。The bulb of the present invention is a valve.
A light emitting member is housed inside, and an introduction foil is provided at the end of the bulb.
And one end portion of which is connected to the introduction foil, and the other end portion of which is the light emitting member.
Is connected to the inner conductor and one end is connected to the introduction foil.
Introducing the other end consisting of an outer conductor led out of the valve
A tube having a sealing portion in which a conductor is sealed, the
Silicon oxide and aluminum oxide are placed in the gap between the stopper and the outer conductor.
And a filling material mainly containing a compound of cuprous oxide
And the thermal expansion coefficient of the filler is 6 × 10-7/ ° C ~ 1
2 x 10 -7Young's modulus is 70 to 80 GPa at / ° C.
Have a configuration.
【０００７】[0007]
【作用】かかる構成により、ピンチ封止後、バルブの封
止部と外導体との間に発生する隙間に空気が侵入するの
を防止し、導入箔が空気にふれて酸化するのを保護す
る。また、ランプを消灯したとき、ランプが冷えて充填
材が収縮し、充填材に割れが発生するのを防止する。With this structure, after the pinch sealing, air is prevented from entering the gap formed between the sealing portion of the valve and the outer conductor, and the introduction foil is protected from being oxidized by being touched by the air. . Further, when the lamp is turned off, the lamp is cooled and the filling material is prevented from contracting and the filling material is prevented from cracking.
【０００８】[0008]
【実施例】以下、本発明の実施例について図面を用いて
説明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００９】本発明の一実施例であるハロゲン電球は図
１および図２に示すように、透明石英ガラスからなる直
管形バルブ１内にはアルゴンなどの不活性ガスとともに
所要のハロゲンが封入されており、両端部はピンチ封止
されて封止部２が形成されている。封止部２内にはモリ
ブデン導入箔３が封止され、これらモリブデン導入箔３
の一端部にはそれぞれタングステン等の高融点金属線か
らなる内導体４が接続され、バルブ１内に導入されてい
る。内導体４間にタングステンフィラメント５がアンカ
で張架されている。また、モリブデン導入箔３の他端部
にはそれぞれ外導体６が接続され封止部２からバルブ１
外へ導出されている。封止部２内の外導体６の外周部分
に熱膨張率差のため形成された微小な隙間７には、充填
材８が充填されている。隙間７はバルブ１の封止工程に
おいて、バルブ１内に導入導体、すなわち導入箔３、内
導体４、外導体６を配設してピンチ封止するとき、軟化
状態にあった石英ガラスが次第に冷却する過程におい
て、外導体６であるモリブデンの熱膨張率が石英ガラス
のそれよりも大きいため、封止部２よりも外導体６がよ
り大きく収縮し、この差が隙間７となる。このようにし
て形成された隙間７を図２に示す。このような隙間は普
通１０分の１〜２ミリメートル位で、外導体６に沿って
延在し、バルブ１外に連通している。As shown in FIGS. 1 and 2, a halogen bulb according to one embodiment of the present invention has a straight-tube bulb 1 made of transparent quartz glass and a required halogen enclosed together with an inert gas such as argon. Both ends are pinch-sealed to form the sealing portion 2. A molybdenum introducing foil 3 is sealed in the sealing portion 2, and these molybdenum introducing foils 3 are sealed.
An inner conductor 4 made of a high melting point metal wire such as tungsten is connected to one end of each of the two and is introduced into the valve 1. A tungsten filament 5 is stretched between the inner conductors 4 with anchors. In addition, the outer conductor 6 is connected to the other end of the molybdenum introducing foil 3, and the sealing portion 2 to the valve 1 are connected.
It has been outsourced. A filling material 8 is filled in the minute gap 7 formed in the outer peripheral portion of the outer conductor 6 in the sealing portion 2 due to the difference in thermal expansion coefficient. In the step of sealing the bulb 1, the gap 7 is provided with the introduction conductor, that is, the introduction foil 3, the inner conductor 4, and the outer conductor 6 in the bulb 1 for pinch-sealing, and the quartz glass in the softened state is gradually removed. In the process of cooling, since the coefficient of thermal expansion of molybdenum, which is the outer conductor 6, is larger than that of quartz glass, the outer conductor 6 contracts more than the sealing portion 2, and the difference becomes the gap 7. The gap 7 thus formed is shown in FIG. Such a gap is usually about 1/10 to 2 mm, extends along the outer conductor 6, and communicates with the outside of the valve 1.
【００１０】充填材８は酸化珪素と酸化アルミと酸化第
１銅の化合物を主体とするもので、充填材８の熱膨張係
数が６×１０-7／℃〜１２×１０-7／℃で、ヤング率が
７０〜８０ＧＰａである。The filler 8 is mainly composed of a compound of silicon oxide, aluminum oxide and cuprous oxide, and has a coefficient of thermal expansion of 6 × 10 -7 / ° C. to 12 × 10 -7 / ° C. , Young's modulus is 70 to 80 GPa.
【００１１】なお、このような充填材８を得るには、酸
化珪素(SiO2)７０〜８０％、酸化アルミ(Al2O3)１０〜
１５％、酸化第１銅５〜１５％、および添加剤として酸
化バナジウム(V2O5)、または酸化カルシュウム(CaO)、
または酸化亜鉛を数％加えたものを混合して、１５００
〜１６００℃で加熱溶融し、ガラス状の固形物を作成
し、しかるのち粉砕して粉末ガラスとする。この粉末ガ
ラスと酢酸イソアミルに１％前後のニトロセルローズを
混合したバインダーを混合してスラリーとする。そし
て、このスラリーを外導体６の封止部２からの導出点に
滴下する。すると、スラリーは毛管現象によって隙間７
内に侵入し充満する。そして、１００℃程度で乾燥した
後、３００℃前後の温度で加熱し、ニトロセルローズを
追い出す。このようにして、充填材は焼成される。その
後、充填材の軟化温度まで昇温し、充填材を非結晶性充
填材とする。In order to obtain such a filler 8, silicon oxide (SiO 2 ) 70 to 80% and aluminum oxide (Al 2 O 3 ) 10 to 10% are used.
15%, cuprous oxide 5 to 15%, and vanadium oxide (V 2 O 5 ) or calcium oxide (CaO) as an additive,
Or mix with a few% zinc oxide and mix 1500
It is heated and melted at ˜1600 ° C. to prepare a glassy solid, which is then crushed to obtain powder glass. This powdered glass and a binder prepared by mixing about 1% of nitrocellulose with isoamyl acetate are mixed to form a slurry. Then, this slurry is dripped at the lead-out point of the outer conductor 6 from the sealing portion 2. Then, the slurry has a gap 7 due to the capillary phenomenon.
Invades inside and fills. Then, after drying at about 100 ° C., the nitrocellulose is driven out by heating at a temperature of about 300 ° C. In this way, the filler is fired. Then, the temperature is raised to the softening temperature of the filler to make the filler an amorphous filler.
【００１２】このハロゲン電球を点灯すると、その動作
熱が封止部２に伝わり、充填された充填材８が加熱され
る。その温度が充填材８の融点を越えなければ、充填材
８は溶融しない状態で外導体６の外周部分の隙間７を埋
め、封止部内の導入箔３および外導体６を気密に保ち、
導入箔３および外導体６の酸化を防止する作用がある。When this halogen bulb is lit, its operating heat is transmitted to the sealing portion 2 and the filled filling material 8 is heated. If the temperature does not exceed the melting point of the filler 8, the filler 8 does not melt and fills the gap 7 in the outer peripheral portion of the outer conductor 6 to keep the introduction foil 3 and the outer conductor 6 in the sealed portion airtight.
It has a function of preventing the introduction foil 3 and the outer conductor 6 from being oxidized.
【００１３】なお、上記実施例の寿命２０００時間のハ
ロゲン電球と、充填材８を用いていない従来の構成のハ
ロゲン電球（以下、従来品）とを用いて実験を行った。
封止部温度４５０℃の雰囲気中で比較試験を行ったとこ
ろ、本実施例のものは２０００時間を経過しても、導入
箔３の表面の酸化は全く認められなかった。これに対
し、充填材８のない従来品は同条件において、２００〜
４００時間経過しただけで導入箔３が酸化して気密性を
失い全数断線したのが確認できた。さらに、封止部温度
５００℃の雰囲気中で比較試験を行ったところ、充填材
８を有する本実施例のものは１０００時間を経過して
も、導入箔３の表面に酸化が生じたもや、封止部２にク
ラックが生じたものは全く確認されなかった。これに対
し、従来品は同条件において、５０〜１００時間経過し
ただけで導入箔３が酸化して気密性を失い全数が断線し
たのが確認できた。Experiments were carried out using the halogen bulb having a life of 2000 hours of the above-mentioned embodiment and a halogen bulb of a conventional structure which does not use the filling material 8 (hereinafter, conventional product).
When a comparative test was conducted in an atmosphere of a sealing portion temperature of 450 ° C., no oxidization was observed on the surface of the introduction foil 3 in this example even after 2000 hours. On the other hand, the conventional product without the filler 8 is 200 to
It was confirmed that the introduction foil 3 was oxidized, lost airtightness, and was completely broken after 400 hours had passed. Furthermore, when a comparative test was performed in an atmosphere at a sealing portion temperature of 500 ° C., it was found that the surface of the introduction foil 3 was oxidized in the case of the example having the filler 8 even after 1000 hours. No cracks were found in the sealing portion 2 at all. On the other hand, in the conventional product, under the same conditions, it was confirmed that the introduction foils 3 were oxidized and lost airtightness and all were broken after only 50 to 100 hours had elapsed.
【００１４】[0014]
【発明の効果】以上説明したように、本発明の管球は、
バルブの封止部と外導体との間に発生する隙間に空気が
侵入するのを防止し、導入箔が空気にふれて酸化するの
を保護することができ、また、ランプを消灯したとき、
ランプが冷えて充填材が収縮し、充填材に割れが発生す
るのを防止することができるため、長寿命とすることが
できる。As described above, the tube of the present invention is
It is possible to prevent air from entering the gap generated between the bulb sealing part and the outer conductor, and to protect the introduction foil from being oxidized by being exposed to air, and when the lamp is turned off,
Since it is possible to prevent the lamp from cooling and the filler from shrinking and the filler from cracking, it is possible to prolong the life of the lamp.
【図１】本発明一実施例である管球の断面図FIG. 1 is a sectional view of a tube according to an embodiment of the present invention.
【図２】同じく要部拡大断面図[FIG. 2] Similarly, an enlarged cross-sectional view of the main part
１ バルブ ２ 封止部 ３ 導入箔 ４ 内導体 ５ フィラメント ６ 外導体 ７ 隙間 ８ 充填材 1 Valve 2 Sealing Part 3 Introduction Foil 4 Inner Conductor 5 Filament 6 Outer Conductor 7 Gap 8 Filling Material
Claims (1)
ルブの端部に、導入箔とこの導入箔に一端部が接続され
他端部に前記発光部材が接続された内導体と、前記導入
箔に一端部が接続され他端部が前記バルブ外に導出され
た外導体からなる導入導体が封止された封止部を有する
管球であって、前記封止部と前記外導体との隙間部分に
酸化珪素と酸化アルミと酸化第１銅の化合物とを主体と
する充填材が充填されており、前記充填材の熱膨張係数
が６×１０-7／℃〜１２×１０-7／℃で、ヤング率が７
０〜８０ＧＰａであることを特徴とする管球。1. A light emitting member is housed in the bulb, an introducing foil is provided at an end of the bulb, an inner conductor having one end connected to the introducing foil and the light emitting member connected at the other end, and the introducing member. A tube having a sealing portion in which one end is connected to a foil and the other end is sealed with an introduction conductor made of an outer conductor led out of the valve, the sealing portion and the outer conductor being The gap is filled with a filler mainly containing a compound of silicon oxide, aluminum oxide and cuprous oxide, and the thermal expansion coefficient of the filler is 6 × 10 −7 / ° C. to 12 × 10 −7 / Young's modulus is 7 at ℃
A tube characterized by being 0 to 80 GPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5227053A JP3040284B2 (en) | 1993-09-13 | 1993-09-13 | Tube ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5227053A JP3040284B2 (en) | 1993-09-13 | 1993-09-13 | Tube ball |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0785846A true JPH0785846A (en) | 1995-03-31 |
| JP3040284B2 JP3040284B2 (en) | 2000-05-15 |
Family
ID=16854795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5227053A Expired - Fee Related JP3040284B2 (en) | 1993-09-13 | 1993-09-13 | Tube ball |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3040284B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6573656B2 (en) | 2000-07-14 | 2003-06-03 | Matsushita Electric Industrial Co., Ltd. | High-pressure discharge lamp and method for producing the same |
| US7391146B2 (en) | 2002-12-20 | 2008-06-24 | Koninklijke Philips Electronics N.V. | Halogen incandescent lamp |
-
1993
- 1993-09-13 JP JP5227053A patent/JP3040284B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6573656B2 (en) | 2000-07-14 | 2003-06-03 | Matsushita Electric Industrial Co., Ltd. | High-pressure discharge lamp and method for producing the same |
| US7391146B2 (en) | 2002-12-20 | 2008-06-24 | Koninklijke Philips Electronics N.V. | Halogen incandescent lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3040284B2 (en) | 2000-05-15 |
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