JPH08212975A - Bulb type fluorescent lamp - Google Patents

Bulb type fluorescent lamp

Info

Publication number
JPH08212975A
JPH08212975A JP2041295A JP2041295A JPH08212975A JP H08212975 A JPH08212975 A JP H08212975A JP 2041295 A JP2041295 A JP 2041295A JP 2041295 A JP2041295 A JP 2041295A JP H08212975 A JPH08212975 A JP H08212975A
Authority
JP
Japan
Prior art keywords
fluorescent tube
weight
amalgam
case
fluorescent
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.)
Pending
Application number
JP2041295A
Other languages
Japanese (ja)
Inventor
Shiro Iida
史朗 飯田
Takeshi Matsumura
武 松村
Masaru Saito
勝 斉藤
Toshiki Oga
俊喜 尾賀
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 Holdings Corp
Original Assignee
Matsushita Electronics Corp
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 Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP2041295A priority Critical patent/JPH08212975A/en
Publication of JPH08212975A publication Critical patent/JPH08212975A/en
Pending legal-status Critical Current

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  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE: To provide a bulb type fluorescent lamp strong against vibration and shock during transportation with good waterproofness, by providing a fluorescent tube, sealed with rare gas and amalgam in the interior to bridge- connect end parts of a plurality of U-shaped bulbs of specific external diameter with a single discharge path formed, and enveloping the fluorescent tube with a globe and a case. CONSTITUTION: A lamp is provided with a fluorescent tube 1 of sealing 50% Ar, Ne mixed rare gas and amalgam 2 in the interior and bridge-connecting end parts of three U-shaped bulbs, for instance, of 11.0 to 12.5mm external diameter to form a single discharge path. A case 4, built in with a lighting circuit for lighting this fluorescent tube 1, is provided. This fluorescent tube 1 is covered with an envelope comprising a globe 5 and the case 4, and brightness equivalent for 100W with, for instance, 25W power consumption can be obtained. Consequently, the amalgam 2, formed of 55 to 75wt.% Bi, 25 to 45wt.% In and 15 to 2.8wt.% Hg, is sealed in the fluorescent tube 1. This fluorescent lamp is excellent in waterproofness, to endure against vibration and shock during transporting a product.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、電球形蛍光灯に関する
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact fluorescent lamp.

【0002】[0002]

【従来の技術】最近、電球形蛍光灯は、コンパクトでか
つ一般電球100W相当の明るさを備えた高出力のもの
が望まれている。
2. Description of the Related Art Recently, compact fluorescent lamps have been desired that are compact and have high brightness equivalent to 100 W of general electric bulbs.

【0003】従来、電球形蛍光灯を、消費電力25Wで
一般電球100W相当の明るさとした場合、コンパクト
な形状で、蛍光管の全長を長く、かつ、細くしランプ電
流を抑えるため、外径が11.0〜12.5mmの3本
のU字形バルブの端部をブリッジ接続して1本の放電路
を形成した蛍光管が用いられていた。この蛍光管内に
は、400Paでアルゴン50%、ネオン50%の混合
希ガスが封入され、かつ、ビスマスが55重量%〜75
重量%、インジウムが25重量%〜45重量%、水銀が
3.2重量%〜5.5重量%からなるアマルガムが封入
されている。また、蛍光管は点灯回路を内蔵したケース
に設けられている。
Conventionally, when an electric bulb type fluorescent lamp has a power consumption of 25 W and a brightness equivalent to that of a general electric bulb of 100 W, the outer diameter is small in order to suppress the lamp current by making the fluorescent tube long and thin with a compact shape. A fluorescent tube was used in which the ends of three U-shaped bulbs of 11.0 to 12.5 mm were bridge-connected to form one discharge path. A mixed rare gas of argon 50% and neon 50% at 400 Pa is enclosed in the fluorescent tube, and bismuth is 55% by weight to 75%.
%, Indium is 25% to 45% by weight, and mercury is 3.2% to 5.5% by weight. Further, the fluorescent tube is provided in a case having a built-in lighting circuit.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、このよ
うな電球形蛍光灯は、消費電力が高く、また、蛍光管を
グローブで覆い、このグローブとケースとで外囲器を形
成するとアマルガムの温度が上昇し常温雰囲気下での発
光効率が悪くなってしまうため、蛍光管をグローブで覆
うことができなかった。したがって、このようなランプ
では、グローブを用いることができないために、雨等の
水滴がケース内部に進入し、点灯回路に不具合を起こさ
せ短寿命の原因となったり、製品輸送中の振動や衝撃に
よって蛍光管が割れてしまう等の問題があった。
However, such a compact fluorescent lamp consumes high power, and when the fluorescent tube is covered with a globe and an envelope is formed by the globe and the case, the temperature of the amalgam is reduced. The fluorescent tube could not be covered with the globe because the temperature of the fluorescent tube rose and the luminous efficiency in the ambient temperature was deteriorated. Therefore, in such a lamp, since it is not possible to use gloves, water droplets such as rain enter the case, causing a malfunction in the lighting circuit, resulting in a short life, and vibration and shock during product transportation. There was a problem that the fluorescent tube was broken by this.

【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、防水性に優れ、また、製品輸送中の
振動や衝撃によって蛍光管が割れてしまうことのないコ
ンパクトで高出力の電球形蛍光灯を提供するものであ
る。
The present invention has been made in order to solve such a problem, is excellent in waterproof property, and is compact and has a high output so that the fluorescent tube is not broken by vibration or shock during transportation of the product. A compact fluorescent lamp is provided.

【0006】[0006]

【課題を解決するための手段】本発明の電球形蛍光灯
は、内部に希ガスとアマルガムが封入され、かつ外径が
11.0〜12.5mmの3本のU字形バルブの端部を
それぞれブリッジ接続し1本の放電路を形成した蛍光管
と、前記蛍光管を点灯するための点灯回路と、前記点灯
回路を内蔵したケースとを備え、前記蛍光管はグローブ
で覆われ、前記グローブと前記ケースとで外囲器を構成
しており、かつ前記アマルガムは、ビスマス、インジウ
ム、および、水銀からなり、前記ビスマスを55重量%
〜75重量%、前記インジウムを25重量%〜45重量
%、および、前記水銀を1.5重量%〜2.8重量%の
範囲内とした構成を有する。
The bulb-type fluorescent lamp of the present invention has three U-shaped bulbs, each of which has a rare gas and an amalgam enclosed therein and has an outer diameter of 11.0 to 12.5 mm. Each of the fluorescent tubes is bridge-connected to form one discharge path, a lighting circuit for lighting the fluorescent tube, and a case having the lighting circuit built therein. The fluorescent tube is covered with a globe, And the case constitute an envelope, and the amalgam is composed of bismuth, indium and mercury, and contains 55% by weight of the bismuth.
˜75 wt%, indium is 25 wt% to 45 wt%, and mercury is in the range of 1.5 wt% to 2.8 wt%.

【0007】[0007]

【作用】この構成により、蛍光管をグローブとケースと
からなる外囲器で覆うことができるので、防水性に優
れ、また、製品輸送中の振動や衝撃によって蛍光管が割
れてしまうことがない。
With this structure, since the fluorescent tube can be covered with the envelope consisting of the globe and the case, the fluorescent tube is excellent in waterproof property, and the fluorescent tube is not broken by vibration or shock during transportation of the product. .

【0008】[0008]

【実施例】図1および図2に示すように、本発明の一実
施例の電球形蛍光灯は、外径が11.0〜12.5mm
の3本のU字形バルブの端部をそれぞれブリッジ接続し
て1本の放電路を形成した蛍光管1を有している。また
蛍光管1の肉厚は1mmである。蛍光管1の外形寸法
は、幅40mm、奥行き50mm、高さ75mmで、電
極管距離は387mmである。蛍光管1の両端部には電
極(図示せず)が設けられている。蛍光管1内には蛍光
管1内に400Paのアルゴン50%、ネオン50%の
混合希ガスとアマルガム2とが封入されている。この封
入されたアマルガム2は、ビスマス、インジウム、およ
び、水銀からなり、ビスマスを55重量%〜75重量
%、インジウムを25重量%〜45重量%、水銀を1.
5重量%〜2.8重量%の範囲内でそれぞれ含んでい
る。蛍光管1はその両端部がホルダ6に固定支持されて
いる。このホルダ6は点灯回路3を内蔵するケース4に
設けられ、かつ蛍光管1はグローブ5で覆われており、
このグローブ5とケース4とで外囲器7が形成されてい
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, the bulb-type fluorescent lamp of one embodiment of the present invention has an outer diameter of 11.0 to 12.5 mm.
3 has a fluorescent tube 1 in which the ends of the three U-shaped bulbs are bridge-connected to form one discharge path. The thickness of the fluorescent tube 1 is 1 mm. The external dimensions of the fluorescent tube 1 are a width of 40 mm, a depth of 50 mm, a height of 75 mm, and an electrode tube distance is 387 mm. Electrodes (not shown) are provided at both ends of the fluorescent tube 1. The fluorescent tube 1 is filled with 400 Pa of 50% argon and 50% neon mixed rare gas and the amalgam 2 in the fluorescent tube 1. The encapsulated amalgam 2 is composed of bismuth, indium, and mercury. 55 wt% to 75 wt% of bismuth, 25 wt% to 45 wt% of indium, and 1.
It is contained in the range of 5% by weight to 2.8% by weight, respectively. Both ends of the fluorescent tube 1 are fixedly supported by a holder 6. This holder 6 is provided in a case 4 containing the lighting circuit 3, and the fluorescent tube 1 is covered with a globe 5.
An envelope 7 is formed by the globe 5 and the case 4.

【0009】[0009]

【表1】 [Table 1]

【0010】表1は、外径寸法が10.0mm〜13.
0mmの蛍光管の消費電力を25Wとしたときの光束お
よびこれら蛍光管のコンパクト性について示している。
In Table 1, the outer diameter dimension is 10.0 mm to 13. mm.
It shows the luminous flux and the compactness of these fluorescent tubes when the power consumption of a 0 mm fluorescent tube is 25 W.

【0011】表1から明らかなように、外径が12.5
mmを越えたものでは、内容積が従来の蛍光管よりも大
きくなるため、蛍光管自体が大きくなり器具との適合性
が悪くなり、電球形蛍光灯本体も大きくなってしまう。
また、蛍光管の外径が11.0mm未満であると蛍光管
の発光面積が減少してしまい高出力化が困難となる。こ
のようなことから蛍光管の外径は11.0〜12.5m
mが良いことが確認できた。
As is apparent from Table 1, the outer diameter is 12.5.
If the size exceeds mm, the internal volume becomes larger than that of the conventional fluorescent tube, so that the fluorescent tube itself becomes large, the compatibility with the equipment deteriorates, and the bulb-shaped fluorescent lamp body also becomes large.
Further, when the outer diameter of the fluorescent tube is less than 11.0 mm, the light emitting area of the fluorescent tube is reduced and it becomes difficult to achieve high output. Therefore, the outer diameter of the fluorescent tube is 11.0 to 12.5 m.
It was confirmed that m was good.

【0012】外径が11.0〜12.5mmの3本のU
字形バルブの端部をブリッジ接続して1本の放電路を形
成した蛍光管1を、グローブ5とケース4とからなる外
囲器7で覆い、消費電力25Wで100W相当の明るさ
を得るために、従来用いていたアマルガム、すなわち、
ビスマスが55重量%〜75重量%、インジウムが25
重量%〜45重量%、水銀が3.2重量%〜5.5重量
%では、常温雰囲気下点灯時、アマルガムの温度は約1
30℃に達するため発光効率は著しく低下してしまう。
Three U having an outer diameter of 11.0 to 12.5 mm
In order to obtain a brightness equivalent to 100 W with a power consumption of 25 W, the fluorescent tube 1 in which one end of the letter-shaped bulb is bridge-connected to form one discharge path is covered with the envelope 7 including the globe 5 and the case 4. In addition, the amalgam that has been used in the past, that is,
55% to 75% by weight of bismuth and 25% of indium
When the weight ratio is 45% by weight and the mercury content is 3.2% by weight to 5.5% by weight, the amalgam temperature is about 1 when the lamp is lit in a normal temperature atmosphere.
Since the temperature reaches 30 ° C., the luminous efficiency is significantly reduced.

【0013】発明者は、この問題について種々検討した
結果、蛍光管1内にビスマスが55重量%〜75重量
%、インジウムが25重量%〜45重量%、水銀が1.
5重量%〜2.8重量%のアマルガム2を封入すること
によって、蛍光管の大きさを従来のものから変更するこ
とがなく、かつグローブとケースとからなる外囲器で蛍
光管を覆っても発光効率が低下することのない高出力の
電球形蛍光灯が得られることを見い出した。
As a result of various studies on this problem, the inventor has found that the fluorescent tube 1 contains 55 wt% to 75 wt% bismuth, 25 wt% to 45 wt% indium, and 1.
By encapsulating 5% by weight to 2.8% by weight of amalgam 2, the size of the fluorescent tube is not changed from the conventional one, and the fluorescent tube is covered with an envelope including a globe and a case. It was also found that a high-power bulb-type fluorescent lamp can be obtained without lowering the luminous efficiency.

【0014】上記した本発明の一実施例の電球形蛍光灯
(以下、本発明品という)と、蛍光管1内に400Pa
のアルゴン50%、ネオン50%の混合希ガスと、ビス
マスが55重量%〜75重量%、インジウムが25重量
%〜45重量%、水銀が3.2重量%〜5.5重量%の
アマルガムを封入した従来の電球形蛍光灯(以下、従来
品)とを製作し、それぞれの周囲温度特性の比較を行っ
た。その結果を図3に示す。
The light bulb type fluorescent lamp of one embodiment of the present invention described above (hereinafter referred to as the present invention product) and 400 Pa in the fluorescent tube 1.
50% argon, 50% neon mixed noble gas, bismuth 55 wt% to 75 wt%, indium 25 wt% to 45 wt%, mercury 3.2 wt% to 5.5 wt% amalgam. A conventional compact bulb-shaped fluorescent lamp (hereinafter referred to as a conventional product) that was enclosed was manufactured, and the ambient temperature characteristics of each were compared. The result is shown in FIG.

【0015】図3から明らかなように、従来のアマルガ
ムを用いた電球形蛍光灯(曲線B)は周囲温度が5〜1
0℃で光束はピークとなり常温(25℃)では約5%低
下し、そして高温となるとともにさらに光束は低下して
いるのに対し、本発明品(曲線A)は、常温で光束はピ
ークとなり、高温側でも従来品に比べて高光束を維持し
ている。
As is apparent from FIG. 3, the conventional bulb-shaped fluorescent lamp using amalgam (curve B) has an ambient temperature of 5-1.
The luminous flux peaks at 0 ° C. and decreases by about 5% at room temperature (25 ° C.), and the luminous flux further decreases as the temperature rises, whereas in the product of the present invention (curve A), the luminous flux peaks at room temperature. Even at high temperatures, it maintains a high luminous flux compared to conventional products.

【0016】次に封入ガスについて、同様のランプ仕様
でアルゴンとネオンの混合比率をかえて試験を行った。
Next, the enclosed gas was tested under the same lamp specifications while changing the mixing ratio of argon and neon.

【0017】[0017]

【表2】 [Table 2]

【0018】表2は消費電力を25Wとしたときのラン
プ電流と6000時間点灯後の光束減退率(6000時
間の光束/100時間の光束×100)を示したもので
ある。表2に示すようにアルゴンに対するネオンの混合
比率を上げるとランプ電流が抑えられ、ランプの発熱を
抑制することができるが、ネオンの混合比率が50%を
こえると光束減退率が60%を下回る。一般に電球形蛍
光灯の定格寿命は6000時間で、ランプが不点に至る
か、あるいは光束減退率が60%を下回った時点を寿命
とみなす。したがって、アルゴンに対するネオンの混合
比率は0%〜50%がよい。またガス圧については、3
00Pa未満では光束減退特性が悪化し、600Paを
こえると光束が低下し、本発明の目的である高出力化が
困難となるため、封入希ガス圧は300Pa〜600P
aがよい。
Table 2 shows the lamp current when the power consumption is set to 25 W and the luminous flux decline rate after lighting for 6000 hours (luminous flux of 6000 hours / luminous flux of 100 hours × 100). As shown in Table 2, when the mixing ratio of neon to argon is increased, the lamp current is suppressed and the heat generation of the lamp can be suppressed, but when the mixing ratio of neon exceeds 50%, the luminous flux decline rate is less than 60%. . Generally, a bulb-type fluorescent lamp has a rated life of 6000 hours, and the time when the lamp reaches a spot or the luminous flux decline rate falls below 60% is regarded as the life. Therefore, the mixing ratio of neon to argon is preferably 0% to 50%. Regarding gas pressure, 3
If the pressure is less than 00 Pa, the luminous flux deteriorating property is deteriorated, and if it exceeds 600 Pa, the luminous flux is lowered, and it is difficult to achieve high output, which is the object of the present invention. Therefore, the enclosed rare gas pressure is 300 Pa to 600 P.
a is good.

【0019】次にアマルガム2の混合比率について説明
する。本実施例の電球形蛍光灯は、アマルガム2の構成
として、ビスマスが69.3重量%、インジウムが2
8.5重量%、水銀2.2%が特性面および組成ばらつ
きの面から最も望ましいが、ビスマスが55重量%〜7
5重量%、インジウムが25重量%〜45重量%、水銀
が1.5重量%〜2.8重量%の範囲であれば、実用上
問題ないことがランプ試験の結果からわかった。
Next, the mixing ratio of the amalgam 2 will be described. In the compact fluorescent lamp of the present embodiment, the amalgam 2 has 69.3 wt% bismuth and 2 indium.
8.5% by weight and 2.2% of mercury are most desirable in terms of characteristics and compositional variations, but bismuth is 55% by weight to 7%.
It was found from the results of the lamp test that there was no problem in practical use within the range of 5% by weight, 25% by weight to 45% by weight of indium, and 1.5% by weight to 2.8% by weight of mercury.

【0020】また、水銀の比率については1.5%未満
になると水銀蒸気圧が上がらずに、電源投入から光束が
安定するまでの立ち上がり時間に長時間を要すという不
具合が起こり、また2.8%を越えると消費電力を20
W以上の場合常温での光束が低下することがわかった。
したがって、水銀の比率については1.5%〜2.8%
が好ましい。
Further, when the ratio of mercury is less than 1.5%, the mercury vapor pressure does not rise, and it takes a long time for the rise time from power-on to the stabilization of the luminous flux. If it exceeds 8%, power consumption will be 20
It was found that the luminous flux at room temperature is lowered when W or more.
Therefore, the ratio of mercury is 1.5% to 2.8%.
Is preferred.

【0021】次に本発明の他の実施例である電球形蛍光
灯について説明する。本発明の他の実施例である電球形
蛍光灯は上記実施例で用いたアマルガム2の代わりに、
インジウムが10重量%〜30重量%、鉛が30重量%
〜50重量%、錫が30重量%〜50重量%、水銀が3
重量%〜12重量%としたアマルガムを用いたものであ
り、上記実施例と同様な効果を得ることができる。な
お、他の構成は上記実施例と同様である。
Next, a compact fluorescent lamp which is another embodiment of the present invention will be described. A compact fluorescent lamp according to another embodiment of the present invention is the same as the amalgam 2 used in the above embodiment.
10% to 30% by weight of indium and 30% by weight of lead
~ 50% by weight, tin 30% to 50% by weight, mercury 3%
Since the amalgam is used in an amount of 12% by weight to 12% by weight, it is possible to obtain the same effect as that of the above-mentioned embodiment. The other structure is the same as that of the above embodiment.

【0022】本発明の他の実施例の電球形蛍光灯の周囲
温度特性を図3の曲線Cに示す。図3から明らかなよう
に、本実施例のものは、上記の曲線Aと同様、常温で光
束はピークとなり、高温側でも従来品(曲線B)と比べ
て高光束を維持していることがわかる。
The ambient temperature characteristic of the compact fluorescent lamp of another embodiment of the present invention is shown by the curve C in FIG. As is clear from FIG. 3, in the case of the present embodiment, the light flux has a peak at room temperature as in the case of the above-mentioned curve A, and maintains a high light flux on the high temperature side as compared with the conventional product (curve B). Recognize.

【0023】封入ガスの組成および封入圧力については
上記した本発明の一実施例の場合と同様である。
The composition of the enclosed gas and the enclosed pressure are the same as in the above-described embodiment of the present invention.

【0024】アマルガムの混合比率についてはインジウ
ムが19.2重量%、鉛が38.4重量%、錫が38.
4重量%、水銀2.2%が特性面および組成ばらつきの
面から最も望ましいがインジウムが10重量%〜30重
量%、鉛が30重量%〜50重量%、錫が30重量%〜
50重量%、水銀が3重量%〜12重量%の範囲であれ
は、実用上問題ないことがランプ試験の結果からわかっ
た。
Regarding the mixing ratio of amalgam, indium is 19.2% by weight, lead is 38.4% by weight, and tin is 38.
4% by weight and 2.2% of mercury are most desirable in terms of characteristics and compositional variations, but indium is 10% by weight to 30% by weight, lead is 30% by weight to 50% by weight, and tin is 30% by weight.
From the results of the lamp test, it was found that there was no problem in practical use within the range of 50% by weight and the range of 3% by weight to 12% by weight of mercury.

【0025】水銀の比率については3%未満になると水
銀蒸気圧が上がらずに、電源投入から光束が安定するま
での立ち上がり時間に長時間を要すという不具合が起こ
り、また12%を越えると消費電力を20W以上の場合
常温での光束が低下することがわかった。したがって、
水銀の比率は3重量%〜12重量%が好ましい。
When the ratio of mercury is less than 3%, the mercury vapor pressure does not rise, and it takes a long time to rise until the luminous flux stabilizes. It was found that the luminous flux at room temperature decreases when the power is 20 W or more. Therefore,
The ratio of mercury is preferably 3% by weight to 12% by weight.

【0026】また、上記各実施例において、使用するグ
ローブの表面に拡散膜、例えば蛍光体等を塗布すること
によって、各方向に対して均一な配光特性を得ることも
できる。
Further, in each of the above-mentioned embodiments, by applying a diffusion film such as a phosphor on the surface of the globe to be used, it is possible to obtain a uniform light distribution characteristic in each direction.

【0027】以上のように本発明の電球形蛍光灯は、内
部に400Paのアルゴン50%、ネオン50%の混合
希ガスとアマルガムが封入され、かつ外径が11.0〜
12.5mmの3本のU字形バルブの端部をそれぞれブ
リッジ接続し1本の放電路を形成した蛍光管1と、この
蛍光管1を点灯するための点灯回路3と、点灯回路3を
内蔵したケース4とを備え、蛍光管1はグローブ5で覆
われ、グローブ5とケース4とで外囲器7を構成してお
り、かつアマルガム2は、ビスマス、インジウム、およ
び、水銀からなり、ビスマスを55重量%〜75重量
%、インジウムを25重量%〜45重量%、および、水
銀を1.5重量%〜2.8重量%の範囲内とした構成を
有しているので、蛍光管、ホルダー、ケースを新しい寸
法のものに交換する必要がないので従来のものを流用す
ることができ、また、グローブを設けることができ、こ
のグローブとケースとで外囲器を形成できるので、防水
性に優れ、また、製品輸送中の振動や衝撃によって蛍光
管が割れてしまうことのないコンパクトで高出力の電球
形蛍光灯を提供することができるものである。
As described above, the bulb-type fluorescent lamp of the present invention is filled with a mixed rare gas of 400 Pa of argon 50% and neon 50% and amalgam, and has an outer diameter of 11.0 to.
Built-in fluorescent tube 1 in which the ends of three 12.5 mm U-shaped bulbs are bridge-connected to form one discharge path, a lighting circuit 3 for lighting the fluorescent tube 1, and a lighting circuit 3 The fluorescent tube 1 is covered with a globe 5, and the globe 5 and the case 4 constitute an envelope 7. The amalgam 2 is made of bismuth, indium, and mercury. Of 55% by weight to 75% by weight, indium of 25% by weight to 45% by weight, and mercury of 1.5% by weight to 2.8% by weight. Since it is not necessary to replace the holder and case with new ones, the existing one can be reused, and a glove can be provided, and since the envelope can be formed with this glove and case, it is waterproof Excellent and also made Due to vibration or impact during transportation is capable of providing self-ballasted fluorescent lamp of higher output compact never cracked fluorescent tube.

【0028】[0028]

【発明の効果】以上説明したように、本発明は、防水性
に優れ、また、製品輸送中の振動や衝撃によって蛍光管
が割れてしまうことのないコンパクトで高出力の電球形
蛍光灯を提供することができるものである。
As described above, the present invention provides a compact and high-power bulb-type fluorescent lamp which is excellent in waterproofness and does not break the fluorescent tube due to vibration or shock during product transportation. Is what you can do.

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

【図1】本発明の一実施例である電球形蛍光灯の一部切
欠正面図
FIG. 1 is a partially cutaway front view of a compact fluorescent lamp according to an embodiment of the present invention.

【図2】同じく電球形蛍光灯の蛍光管の正面図および側
面図
FIG. 2 is a front view and a side view of a fluorescent tube of a compact fluorescent lamp.

【図3】同じく電球形蛍光灯の周囲温度特性[Figure 3] Ambient temperature characteristics of a compact fluorescent lamp

【符号の説明】[Explanation of symbols]

1 蛍光管 2 アマルガム 3 点灯回路 4 ケース 5 グローブ 7 外囲器 1 Fluorescent Tube 2 Amalgam 3 Lighting Circuit 4 Case 5 Globe 7 Enclosure

───────────────────────────────────────────────────── フロントページの続き (72)発明者 尾賀 俊喜 大阪府高槻市幸町1番1号 松下電子工業 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiki Oga 1-1 Sachimachi, Takatsuki City, Osaka Prefecture Matsushita Electronics Industrial Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 内部に希ガスとアマルガムが封入され、
かつ外径が11.0〜12.5mmの3本のU字形バル
ブの端部をそれぞれブリッジ接続し1本の放電路を形成
した蛍光管と、前記蛍光管を点灯するための点灯回路
と、前記点灯回路を内蔵したケースとを備え、前記蛍光
管はグローブで覆われ、前記グローブと前記ケースとで
外囲器を構成しており、かつ前記アマルガムは、ビスマ
ス、インジウム、および、水銀からなり、前記ビスマス
を55重量%〜75重量%、前記インジウムを25重量
%〜45重量%、および、前記水銀を1.5重量%〜
2.8重量%の範囲内としたことを特徴とする電球形蛍
光灯。
1. A rare gas and an amalgam are enclosed inside,
And a fluorescent tube in which the ends of three U-shaped bulbs each having an outer diameter of 11.0 to 12.5 mm are bridge-connected to form one discharge path, and a lighting circuit for lighting the fluorescent tube. A case in which the lighting circuit is built in, the fluorescent tube is covered with a globe, the globe and the case constitute an envelope, and the amalgam is made of bismuth, indium, and mercury. 55 wt% to 75 wt% of bismuth, 25 wt% to 45 wt% of indium, and 1.5 wt% of mercury.
A compact fluorescent lamp characterized in that the content is within the range of 2.8% by weight.
【請求項2】 アマルガムが、インジウム、鉛、錫、お
よび、水銀からなり、前記インジウムを10重量%〜3
0重量%、前記鉛を30重量%〜50重量%、前記錫を
30重量%〜50重量%、および、前記水銀を3重量%
〜12重量%の範囲内としたことを特徴とする請求項1
記載の電球形蛍光灯。
2. The amalgam is composed of indium, lead, tin and mercury, and the indium is contained in an amount of 10% by weight to 3%.
0 wt%, the lead is 30 wt% to 50 wt%, the tin is 30 wt% to 50 wt%, and the mercury is 3 wt%.
It is set within the range of up to 12% by weight.
The described bulb-shaped fluorescent lamp.
JP2041295A 1995-02-08 1995-02-08 Bulb type fluorescent lamp Pending JPH08212975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2041295A JPH08212975A (en) 1995-02-08 1995-02-08 Bulb type fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2041295A JPH08212975A (en) 1995-02-08 1995-02-08 Bulb type fluorescent lamp

Publications (1)

Publication Number Publication Date
JPH08212975A true JPH08212975A (en) 1996-08-20

Family

ID=12026334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2041295A Pending JPH08212975A (en) 1995-02-08 1995-02-08 Bulb type fluorescent lamp

Country Status (1)

Country Link
JP (1) JPH08212975A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100381668B1 (en) * 2001-05-04 2003-05-01 김영환 Light lamp shock absorber
WO2003083895A1 (en) * 2002-03-29 2003-10-09 Matsushita Electric Industrial Co., Ltd. Light emitting tube and low-pressure mercury lamp
CN101446401B (en) 2007-11-27 2012-02-29 Nec照明株式会社 Fluorescent lamp with built-in lighting circuit and manufacturing method thereof
CN103489748A (en) * 2013-09-27 2014-01-01 何志明 Low-pressure mercury electric-discharge lamp and ultraviolet disinfection and sterilization device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100381668B1 (en) * 2001-05-04 2003-05-01 김영환 Light lamp shock absorber
WO2003083895A1 (en) * 2002-03-29 2003-10-09 Matsushita Electric Industrial Co., Ltd. Light emitting tube and low-pressure mercury lamp
US7298088B2 (en) 2002-03-29 2007-11-20 Matsushita Electric Industrial Co., Ltd. Arc tube and low-pressure mercury lamp
CN101446401B (en) 2007-11-27 2012-02-29 Nec照明株式会社 Fluorescent lamp with built-in lighting circuit and manufacturing method thereof
CN103489748A (en) * 2013-09-27 2014-01-01 何志明 Low-pressure mercury electric-discharge lamp and ultraviolet disinfection and sterilization device
WO2015043091A1 (en) * 2013-09-27 2015-04-02 何志明 Low-pressure mercury discharge lamp and ultraviolet disinfection and sterilization apparatus

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