JPH0963536A - Electrode for fluorescent lamp, and fluorescent lamp - Google Patents

Electrode for fluorescent lamp, and fluorescent lamp

Info

Publication number
JPH0963536A
JPH0963536A JP22080995A JP22080995A JPH0963536A JP H0963536 A JPH0963536 A JP H0963536A JP 22080995 A JP22080995 A JP 22080995A JP 22080995 A JP22080995 A JP 22080995A JP H0963536 A JPH0963536 A JP H0963536A
Authority
JP
Japan
Prior art keywords
fluorescent lamp
filament
coil
lamp
electrode
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.)
Withdrawn
Application number
JP22080995A
Other languages
Japanese (ja)
Inventor
Hiroshi Imamura
博司 今村
Keisuke Sato
啓介 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP22080995A priority Critical patent/JPH0963536A/en
Publication of JPH0963536A publication Critical patent/JPH0963536A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide an electrode for a fluorescent lamp, that does not reduce the lamp life even when the number of times of lamp blinks is increased, and a fluorescent lamp using the same by reducing the time required for a multiple coil filament and an electron emitting material to reach normal operating temperatures, i.e., sputtering time. SOLUTION: In order to quickly raise the temperature of an electron emitting material, one multiple coil filament 1 is provided with a plurality of most wound parts 12. Also, both end legs 11, 11 of the filament 1 and a leg 11' provided between the most wound parts 12 are pinched by support wires 3, 3' embedded in a stem 2 so as to enhance the vibration resistance of the electron emitting material to prevent the material from dropping. Further, the filament 1 pinched by the support wires 3, 3' is installed in such a way that it surrounds the centerline of the stem so that it can be mounted even in a fine tube lamp.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、蛍光ランプ用電極
及びその電極を用いた蛍光ランプに関するものである。
TECHNICAL FIELD The present invention relates to an electrode for a fluorescent lamp and a fluorescent lamp using the electrode.

【0002】[0002]

【従来の技術】一般に蛍光ランプの寿命は、タングステ
ンの多重コイルフィラメントに被着された電子放射性物
質が、ランプ始動時および点灯時に飛散、蒸発し、消耗
することによって決定される。
2. Description of the Related Art In general, the life of a fluorescent lamp is determined by the fact that the electron emissive material deposited on the tungsten multi-coil filament is scattered, evaporated and consumed at the time of starting and operating the lamp.

【0003】多重コイルフィラメントとしては、ダブル
コイルフィラメントもしくは前記ダブルコイルフィラメ
ントに細線をゆるく巻いた、いわゆるトリプルコイルフ
ィラメント、またはコイルを三重に巻回したブロックコ
イルフィラメントなどが実用化され用いられている。
As the multi-coil filament, a double-coil filament, a so-called triple-coil filament in which a thin wire is loosely wound around the double-coil filament, or a block-coil filament in which a coil is triple-wound, has been put into practical use.

【0004】また、電子放射性物質としては、酸化ジル
コニウムを数wt%含むアルカリ土類金属(バリウム、
ストロンチウム、カルシウム)の複合酸化物が用いられ
ており、近年数々の改良がなされた結果、例えば、FL
10では定格寿命6,000時間、FL20SSでは
8,500時間、FL40SS,FLR40Sでは1
2,000時間が得られている。
As the electron emitting material, alkaline earth metal (barium, containing several wt% of zirconium oxide) is used.
A complex oxide of strontium and calcium) is used, and as a result of various improvements in recent years, for example, FL
10, the rated life is 6,000 hours, FL20SS is 8,500 hours, FL40SS, FLR40S is 1
2,000 hours have been obtained.

【0005】[0005]

【発明が解決しようとする課題】しかし、地球環境問題
が顕在化しつつある昨今、省資源及び環境汚染(ランプ
管内に含まれる水銀の排出)の観点からすれば、上述の
蛍光ランプの定格寿命では、決して満足できるレベルに
達しているとは言えない。
However, from the viewpoint of resource saving and environmental pollution (emission of mercury contained in the lamp tube) in recent years when global environmental problems are becoming apparent, the rated life of the above fluorescent lamp is , I can't say that I have reached a satisfactory level.

【0006】ところで、蛍光ランプの点灯寿命は、点灯
中よりもランプ始動時に、前記の電子放射性物質の消耗
が激しいため、点滅回数が多ければ寿命が短くなる。一
般的に、1回の点滅で30分乃至1時間30分程度寿命
が短くなると言われている。
By the way, the life of the fluorescent lamp is shortened when the number of times of blinking is large, because the electron emissive material is consumed more at the time of starting the lamp than during the lighting. Generally, it is said that one blinking shortens the life by about 30 minutes to 1 hour and 30 minutes.

【0007】この原因は、蛍光ランプ両端に装着されて
いる多重コイルフィラメントが、ある程度の熱容量を持
っているために、電子放射性物質が正常な熱電子放出の
動作温度になるまでの間、高い電極降下電圧によるイオ
ン衝撃を受け、いわゆるスパッタにより、その電子放射
性物質が飛散、消耗するためである。もちろん、多重コ
イルフィラメントもスパッタによりダメージを受け、最
悪の場合、断線に至る。
This is because the multi-coil filaments attached to both ends of the fluorescent lamp have a certain amount of heat capacity, so that the high emissivity of the electron emissive material is maintained until the normal operating temperature for thermionic emission is reached. This is because the electron emissive material is scattered and consumed by so-called sputtering due to ion bombardment due to the drop voltage. Of course, the multi-coil filament is also damaged by the spatter, and in the worst case, the wire breaks.

【0008】飛散した電子放射性物質及びコイルは、管
壁黒化、光束低下などを引き起こし、これもまた、ラン
プ寿命短縮の要因となる。
The scattered electron emissive material and the coil cause blackening of the tube wall, reduction of luminous flux, etc., which also causes a shortening of the lamp life.

【0009】本発明は、上記問題点を解決するためにな
されたもので、その目的とするところは、多重コイルフ
ィラメント及び電子放射性物質が正常な動作温度になる
までの時間を短くし、すなわち、スパッタ時間を短縮し
て、点滅回数が増してもランプ寿命が短くならない蛍光
ランプ用電極及びその電極を用いた蛍光ランプを提供す
ることにある。
The present invention has been made to solve the above problems, and an object of the present invention is to shorten the time required for the multi-coil filament and the electron emitting material to reach a normal operating temperature, that is, An object of the present invention is to provide an electrode for a fluorescent lamp and a fluorescent lamp using the electrode, in which the life of the lamp is not shortened even if the number of blinks is increased by shortening the sputtering time.

【0010】[0010]

【課題を解決するための手段】上記課題を解決するため
本発明は、電子放射性物質の温度を速やかに上昇させる
ために、1本の多重コイルフィラメントに複数の最多巻
部を設けたことを特徴とするものである。
In order to solve the above-mentioned problems, the present invention is characterized in that one multi-coil filament is provided with a plurality of maximum winding portions in order to quickly raise the temperature of the electron emissive material. It is what

【0011】また、複数の最多巻部を有する多重コイル
フィラメントの両端脚部と最多巻部間に設けた脚部と
を、ステムに埋設されたそれぞれの支持線にピンチ固着
したことにより、電子放射性物質の耐震性を向上させ、
その脱落を防止するものである。
Further, the both end legs of the multi-coil filament having a plurality of most windings and the legs provided between the most windings are pinched and fixed to the respective support wires embedded in the stem, so that the electron emissivity is increased. Improve the earthquake resistance of the material,
It is intended to prevent the falling.

【0012】さらに、支持線にピンチ固着された複数の
最多巻部を有する多重コイルフィラメントを、ステム中
心線を囲むように配置したことにより、細管ランプにも
装着可能とするものである。
Further, the multi-coil filament having a plurality of maximum winding portions pinch-fixed to the support wire is arranged so as to surround the stem center line, so that it can be mounted on a thin tube lamp.

【0013】[0013]

【発明の実施の形態】以下、本発明の実施の形態を詳細
に説明する。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below.

【0014】(実施形態1)図5は、蛍光ランプの電極
部分の典型的な従来構造を示すものである。図におい
て、1は多重コイルフィラメントで、その脚部11,1
1は、ガラスステム2に埋設された支持線3,3にピン
チ固着されている。
(Embodiment 1) FIG. 5 shows a typical conventional structure of an electrode portion of a fluorescent lamp. In the figure, 1 is a multi-coil filament, and its leg parts 11, 1
1 is pinch-fixed to support wires 3 and 3 embedded in a glass stem 2.

【0015】図1は、本発明に係る実施形態1の電極部
分の構造を示すもので、多重コイルフィラメント1に
は、複数の最多巻部12,12が形成されている。脚部
11,11は、従来構造と同じく、ガラスステム2に埋
設された支持線3,3にピンチ固着されている。なお、
電子放射性物質は、脚部11,11を除くフィラメント
全域に被着されている。また、多重コイルフィラメント
1は、点灯回路の互換性を満たすために、上記従来構造
と略同一の電気特性を持たせてある。
FIG. 1 shows the structure of an electrode portion according to the first embodiment of the present invention. The multiple coil filament 1 is formed with a plurality of maximum winding portions 12, 12. The leg portions 11 and 11 are pinch-fixed to the support wires 3 and 3 embedded in the glass stem 2 as in the conventional structure. In addition,
The electron emissive material is deposited on the entire area of the filament except the legs 11, 11. In addition, the multi-coil filament 1 has substantially the same electrical characteristics as those of the conventional structure in order to satisfy the compatibility of the lighting circuit.

【0016】本発明に係る複数の最多巻部12の内径及
びピッチは、従来のそれより小さく設計されており、同
じ点灯回路で始動させると、コイル密度の高い最多巻部
12の温度上昇が早くなるので、図2に示すように、電
子放射性物質の動作温度、すなわち、エミッション開始
温度に達するまでの時間が短縮される。しかも、最多巻
部12を複数設けているので、エミッション開始温度に
達する部分の存在確率が増す。その結果、スパッタが少
なくなり、イオン衝撃によるコイル及び電子放射性物質
のダメージが緩和される。
The inner diameters and the pitches of the plurality of most winding portions 12 according to the present invention are designed to be smaller than those of the conventional one, and when starting with the same lighting circuit, the temperature of the most winding portion 12 having a high coil density rises quickly. Therefore, as shown in FIG. 2, the time required to reach the operating temperature of the electron emissive material, that is, the emission start temperature is shortened. Moreover, since the maximum number of winding portions 12 is plural, the probability of existence of the portion reaching the emission start temperature increases. As a result, the amount of spatter is reduced, and damage to the coil and the electron emissive material due to ion bombardment is reduced.

【0017】10秒点灯/50秒消灯の短期点滅寿命試
験の結果は、下記の通りである。なお、試験に用いたラ
ンプはFL40SSで、安定器は専用インバータ安定器
を使用した。また、下記数字は、10本のランプが不点
灯に至るまでの平均点滅回数である。
The results of the short-term blinking life test of 10 seconds on / 50 seconds off are as follows. The lamp used in the test was FL40SS, and the ballast used was a dedicated inverter ballast. Further, the following numbers are the average number of times of blinking until the 10 lamps are turned off.

【0018】 本発明の電極……43,300回 従来例の電極……16,500回 このように、本発明に係る電極を用いた場合、従来の
2.5倍以上の点滅寿命が得られることがわかった。ま
た、多重コイルフィラメントとしては、前述のダブルコ
イルフィラメント、トリプルコイルフィラメント及びブ
ロックコイルフィラメントが本発明に適用できるので、
本発明の適用範囲は広いと言える。
The electrode of the present invention: 43,300 times The electrode of the conventional example: 16,500 times As described above, when the electrode according to the present invention is used, a blinking life of 2.5 times or more that of the conventional one can be obtained. I understand. Further, as the multiple coil filament, since the above-mentioned double coil filament, triple coil filament and block coil filament can be applied to the present invention,
It can be said that the application range of the present invention is wide.

【0019】なお、この実施形態では、最多巻部12が
2つの例を述べたが、3つ以上形成できることは言うま
でもない。
In this embodiment, the example in which the maximum number of winding portions 12 is two has been described, but it goes without saying that three or more winding portions can be formed.

【0020】(実施形態2)本発明に係る電極は、相対
的に多重コイルフィラメント全長が長くなるので、コイ
ルの振動が大きくなる傾向がある。本実施形態は、この
コイルの振動を防止するために、図3に示すように、複
数の最多巻部12,12を有する多重コイルフィラメン
ト1の両端脚部11,11と、最多巻部12,12の間
に設けた脚部11’とを、それぞれの支持線3,3,
3’にピンチ固着したものである。
(Embodiment 2) In the electrode according to the present invention, since the total length of the multi-coil filament is relatively long, the vibration of the coil tends to be large. In order to prevent the vibration of the coil, the present embodiment, as shown in FIG. 3, has both end legs 11 and 11 of the multi-coil filament 1 having a plurality of most winding parts 12, 12 and the most winding part 12, The leg 11 ′ provided between 12 and the supporting lines 3, 3,
It is pinched to 3 '.

【0021】このように、多重コイルフィラメント1の
中間部を支持線3’によって固定したことにより、コイ
ルの振動が防止され、その結果、電子放射性物質の耐震
性の向上が図れ、電子放射性物質の脱落が防止できた。
電子放射性物質の脱落防止効果は高く、JISで定めら
れた点灯寿命試験では、FL40SSで、従来の電極を
装着したものより、約1.5倍の点灯寿命が得られた。
By thus fixing the intermediate portion of the multi-coil filament 1 by the support wire 3 ', the vibration of the coil is prevented, and as a result, the seismic resistance of the electron emissive material can be improved and the emissive material of the electron emissive material can be improved. It was possible to prevent falling off.
The effect of preventing the emissive substance from falling off is high, and in the lighting life test defined by JIS, the lighting life of FL40SS was about 1.5 times longer than that of the case where the conventional electrode was mounted.

【0022】(実施形態3)実施形態2で述べたよう
に、本発明に係る電極は、相対的に多重コイルフィラメ
ント全長が長くなるので、ガラス管径の小さいランプに
は、物理的に電極が挿入できないという問題がある。
(Embodiment 3) As described in Embodiment 2, the electrode according to the present invention has a relatively long total length of the multi-coil filament. There is a problem that it cannot be inserted.

【0023】この実施形態は、この問題を改善するため
に、図4(a),(b)に示すように、3本の支持線
3,3,3’にピンチ固着された複数の最多巻部12,
12を有する多重コイルフィラメント1を、ステム2の
中心線を囲むように配置することにより、実質的にコイ
ルサイズを小さくし、細管ランプにも装着可能となるよ
うにしたものである。なお、図4(a)に示すものは、
最多巻部12が2つの場合、図4(b)は3つの場合の
例である。
In order to ameliorate this problem, this embodiment has a plurality of maximum number of windings pinched to three supporting wires 3, 3, 3 ', as shown in FIGS. 4 (a) and 4 (b). Part 12,
By arranging the multi-coil filament 1 having 12 so as to surround the center line of the stem 2, the coil size can be substantially reduced, and the filament can be mounted on a thin tube lamp. In addition, what is shown in FIG.
FIG. 4B shows an example in which the maximum number of winding portions 12 is two, and FIG.

【0024】[0024]

【発明の効果】本発明は上記のように、1本の多重コイ
ルフィラメントに複数の最多巻部を設けたので、コイル
密度の高い最多巻部の温度上昇が早くなる結果、電子放
射性物質の動作温度、すなわちエミッション開始温度に
達するまでの時間が短縮され、スパッタが少なくなり、
イオン衝撃によるコイル及び電子放射性物質のダメージ
を緩和できると共に、最多巻部を複数設けたので、ダメ
ージ少なく始動する確率が増す蛍光ランプ用電極を提供
できた。
As described above, according to the present invention, since a plurality of multi-winding portions are provided in one multi-coil filament, the temperature of the multi-winding portion having a high coil density rises quickly, and as a result, the operation of the electron emissive material is increased. Temperature, that is, the time to reach the emission start temperature is shortened, spatter is reduced,
It is possible to reduce the damage to the coil and the electron emissive substance due to ion bombardment, and since the maximum number of windings is provided, it is possible to provide an electrode for a fluorescent lamp that increases the probability of starting with less damage.

【0025】また、複数の最多巻部を有する多重コイル
フィラメントの両端脚部と最多巻部間に設けた脚部と
を、ステムに埋設されたそれぞれの支持線にピンチ固着
したことにより、多重コイルフィラメントの振動を防
ぎ、電子放射性物質の耐震性を向上させ、その脱落を防
止することができる。その結果、従来の2.5倍以上の
点滅寿命を持つ、寿命の長い蛍光ランプを得ることがで
きた。
Further, the both ends of the multi-coil filament having a plurality of multi-winding parts and the legs provided between the multi-winding parts are pinch-fixed to the respective support wires embedded in the stem, whereby the multi-coil is formed. It is possible to prevent the vibration of the filament, improve the earthquake resistance of the electron emissive material, and prevent it from falling off. As a result, it was possible to obtain a fluorescent lamp with a long life, which has a flashing life that is 2.5 times longer than that of conventional fluorescent lamps.

【0026】さらに、支持線にピンチ固着された複数の
最多巻部を有する多重コイルフィラメントを、ステム中
心線を囲むように配置したことにより、細管ランプにも
装着可能となり、本発明の適用範囲を広げることができ
た。
Furthermore, by arranging the multiple coil filaments having a plurality of maximum winding portions pinched and fixed to the support wire so as to surround the stem center line, it becomes possible to mount the thin tube lamp, and the application range of the present invention is applied. I was able to spread it.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る実施形態1の電極部分を示す正面
図である。
FIG. 1 is a front view showing an electrode portion of a first embodiment according to the present invention.

【図2】フィラメント温度の特性を示す図である。FIG. 2 is a diagram showing characteristics of filament temperature.

【図3】本発明に係る実施形態2の電極部分を示す正面
図である。
FIG. 3 is a front view showing an electrode portion of a second embodiment according to the present invention.

【図4】本発明に係る実施形態3の電極部分を示す上面
図である。
FIG. 4 is a top view showing an electrode portion of a third embodiment according to the present invention.

【図5】従来例の電極部分の構造を示す正面図である。FIG. 5 is a front view showing a structure of an electrode portion of a conventional example.

【符号の説明】[Explanation of symbols]

1 多重コイルフィラメント 2 ガラスステム 3 支持線 11 脚部 12 最多巻部 1 Multiple Coil Filament 2 Glass Stem 3 Support Wire 11 Leg 12 Maximum Winding

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 1本の多重コイルフィラメントに複数の
最多巻部を設けたことを特徴とする蛍光ランプ用電極。
1. An electrode for a fluorescent lamp, wherein one multi-coil filament is provided with a plurality of most winding portions.
【請求項2】 請求項1記載の電極を備えた蛍光ランプ
であって、前記複数の最多巻部を有する多重コイルフィ
ラメントの両端脚部と最多巻部間に設けた脚部とを、ス
テムに埋設されたそれぞれの支持線にピンチ固着したこ
とを特徴とする蛍光ランプ。
2. A fluorescent lamp provided with the electrode according to claim 1, wherein both end legs of the multi-coil filament having the plurality of most winding portions and a leg portion provided between the most winding portions are provided on a stem. A fluorescent lamp characterized by being pinched to each embedded support line.
【請求項3】 前記多重コイルフィラメントを、前記ス
テムの中心線を囲むように配置したことを特徴とする請
求項2記載の蛍光ランプ。
3. The fluorescent lamp according to claim 2, wherein the multi-coil filaments are arranged so as to surround a center line of the stem.
JP22080995A 1995-08-29 1995-08-29 Electrode for fluorescent lamp, and fluorescent lamp Withdrawn JPH0963536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22080995A JPH0963536A (en) 1995-08-29 1995-08-29 Electrode for fluorescent lamp, and fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22080995A JPH0963536A (en) 1995-08-29 1995-08-29 Electrode for fluorescent lamp, and fluorescent lamp

Publications (1)

Publication Number Publication Date
JPH0963536A true JPH0963536A (en) 1997-03-07

Family

ID=16756907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22080995A Withdrawn JPH0963536A (en) 1995-08-29 1995-08-29 Electrode for fluorescent lamp, and fluorescent lamp

Country Status (1)

Country Link
JP (1) JPH0963536A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906151B1 (en) * 2008-01-29 2009-07-03 주식회사 새한텅스텐 A filament for electrode of hot cathode fluorescent lamp and the method manufacturing thereof
CN102983057A (en) * 2012-11-29 2013-03-20 常州兰喆仪器仪表有限公司 Glass gas light emitting diode electrode structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906151B1 (en) * 2008-01-29 2009-07-03 주식회사 새한텅스텐 A filament for electrode of hot cathode fluorescent lamp and the method manufacturing thereof
CN102983057A (en) * 2012-11-29 2013-03-20 常州兰喆仪器仪表有限公司 Glass gas light emitting diode electrode structure

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