JPS62217552A - Discharge lamp - Google Patents
Discharge lampInfo
- Publication number
- JPS62217552A JPS62217552A JP6216686A JP6216686A JPS62217552A JP S62217552 A JPS62217552 A JP S62217552A JP 6216686 A JP6216686 A JP 6216686A JP 6216686 A JP6216686 A JP 6216686A JP S62217552 A JPS62217552 A JP S62217552A
- Authority
- JP
- Japan
- Prior art keywords
- discharge tubes
- discharge
- gap
- tubes
- base
- 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
Links
- 230000006378 damage Effects 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 abstract 4
- 238000010168 coupling process Methods 0.000 abstract 4
- 238000005859 coupling reaction Methods 0.000 abstract 4
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 229920005992 thermoplastic resin Polymers 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は放電灯、特に小型な放電灯に関するものである
。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to discharge lamps, particularly compact discharge lamps.
従来の技術
低圧水銀蒸気放電灯たとえば蛍光灯を小型化するために
、種々の構造が提案されており、一部実用化されている
。その代表的なものに、複数対の放電管を平行に配置し
、放電管が直列になるようすなわち連続したひとつの放
電路が形成されるようにその端部近傍の部分を連通結合
し、かつこれら放電管の一方の端部に口金を取付けたも
のがある（特開昭５５−１３３７４４号公報、特開昭５
８−２５０６１号公報、特開昭６０−１２４３４５号公
報など）。2. Description of the Related Art Various structures have been proposed to miniaturize low-pressure mercury vapor discharge lamps, such as fluorescent lamps, and some of them have been put into practical use. A typical example is to arrange multiple pairs of discharge tubes in parallel, connect the parts near their ends so that the discharge tubes are in series, that is, to form one continuous discharge path, and Some of these discharge tubes have a cap attached to one end (Japanese Unexamined Patent Application Publication No. 133744/1983,
8-25061, JP-A-60-124345, etc.).
発明が解決しようとする問題点
この種放電灯は小型で、放電管をＵ字状にしたり、鞍形
にしたりする場合に比べて、製造が容易で、製造装置も
小型でよいという利点を有するものの、その取扱い時た
とえば照明器具に取付けたり、それから取外したりする
ときに、破損しやすいという問題をもっている。Problems to be Solved by the Invention This type of discharge lamp is small and has the advantage that it is easier to manufacture and requires smaller manufacturing equipment than discharge tubes that are U-shaped or saddle-shaped. However, it has the problem that it is easily damaged when it is handled, for example, when it is attached to or removed from a lighting fixture.
これは、放電管の一方の端部に口金が取付けられている
構造であるため、使用者が照明器具への取付け、それか
らの取外しの際に、放電管部分、特にその口金側とは反
対側の先端部（以下単に先端部という）を握りやすいこ
とと、連結部分が他の部分に比べて比較的強度が低いこ
ととによる。This is a structure in which the cap is attached to one end of the discharge tube, so when the user attaches it to a lighting fixture or removes it, the discharge tube part, especially the side opposite to the cap, This is because the tip (hereinafter simply referred to as the tip) is easy to grip, and the strength of the connecting part is relatively low compared to other parts.
そのため、放電管の先端部側を少し強（握ったりすると
、応力が口金側連結部分に集中して発生し、そこで破損
を生じやすい。ちなみに、発明者らの実験によれば、一
般の蛍光灯用ガラス管を使用し、口金（１１１１で連結
された放電管を等間隙にしてＨａ成した場合、両放電管
の先端部間にそれらを互いに近づける方向の荷重を３〜
５ｋｇ程度印加しただけで、その連結部分が破損してし
まう。この部分の強度は、３０ｋｇ程度の荷重に耐える
ことができれば、実用上十分である。Therefore, if you squeeze the distal end of the discharge tube with a little force, stress will be concentrated on the connecting part on the cap side, which will easily cause damage.By the way, according to the inventors' experiments, ordinary fluorescent lamps When the discharge tubes connected by the caps (1111) are made with equal spacing using glass tubes, a load of 3 to 30% is applied between the tips of both discharge tubes in the direction of bringing them closer together.
If only about 5 kg is applied, the connecting part will be damaged. The strength of this part is practically sufficient if it can withstand a load of about 30 kg.
問題点を解決するための手段
本発明は、複数対の放電管を直列になるよう隣接する端
部近傍を交互に連結し、その一方の端部側に口金を取付
けた放電灯であって、口金側端部近傍にて連結されてい
る放電管同士の間隙を、その先端部側の間隙より広くし
ている。Means for Solving the Problems The present invention provides a discharge lamp in which a plurality of pairs of discharge tubes are connected alternately in the vicinity of adjacent ends so as to be connected in series, and a cap is attached to one of the ends. The gap between the discharge tubes connected near the end on the base side is made wider than the gap on the tip side.
作 用
このように、口金側端部近傍で連結されている放電管同
士の間隙を上述の寸法関係としているため、両放電管の
先端部を互いに近づける方向の力に対し、機械的強度が
いちじるしく増大する。Function In this way, since the gaps between the discharge tubes connected near the end on the mouthpiece side have the above-mentioned dimensional relationship, the mechanical strength is significantly improved against the force in the direction that brings the tips of both discharge tubes closer to each other. increase
実施例
以下、本発明の一実施例の蛍光灯について、図面を用い
て説明する。EXAMPLE Hereinafter, a fluorescent lamp according to an example of the present invention will be described with reference to the drawings.
第１図はこの実施例の一部破断側面図、第２図は第１図
をその右方向から見た一部破断側面図、第３図は斜視図
、第４図は底面図、第５図はこの実施例における放電管
の連結状態を示す放電管底面図、第６図は同じく口金部
分を破断して示す平面図である。Fig. 1 is a partially cutaway side view of this embodiment, Fig. 2 is a partially cutaway side view of Fig. 1 seen from the right side, Fig. 3 is a perspective view, Fig. 4 is a bottom view, and Fig. 5 is a partially cutaway side view of this embodiment. The figure is a bottom view of the discharge tubes showing the connected state of the discharge tubes in this embodiment, and FIG. 6 is a plan view showing the base portion cut away.
第１図〜第３図において、１〜４は長さ９１〜１１８Ｍ
、外径１６．７ｎａ、内径１５ｍｍのガラス製放電管で
、それぞれの一端にはステムが封着されており、他端は
直接封止されている。放電管１〜４のうち、放電管］、
２については、第２図および第５図に示すように、その
ステム部分に電極５．６がそれぞれ取付けられている。In Figures 1 to 3, 1 to 4 are lengths of 91 to 118M.
, a glass discharge tube with an outer diameter of 16.7 na and an inner diameter of 15 mm, each having a stem sealed at one end and the other end directly sealed. Among discharge tubes 1 to 4, discharge tube],
2, as shown in FIGS. 2 and 5, electrodes 5 and 6 are respectively attached to the stem portion thereof.
電極５．６は通常使用されている蛍光灯の電極と同様の
構造のものである。The electrodes 5.6 have a structure similar to the electrodes of commonly used fluorescent lamps.
放電管１〜４はほぼ四辺形の頂点位置に配設されている
。そして、放電管ｌと同４との間隙、放電管２と同３と
の間隙は実質的に一定であり、放電管３，４については
、そのステム側の端部の間隙が先端部の間隙に比べて広
くなるようそれぞれが互いに連結されている。The discharge tubes 1 to 4 are arranged at approximately the apex positions of a quadrilateral. The gap between the discharge tubes 1 and 4 and the gap between the discharge tubes 2 and 3 are substantially constant, and for the discharge tubes 3 and 4, the gap between the ends on the stem side is equal to the gap between the tips. They are connected to each other so that they are wider than the
放電管１．２は放電路の両端に位置するものであり、第
５図に示すように、両者は直接には連結されていない。The discharge tubes 1.2 are located at both ends of the discharge path, and as shown in FIG. 5, the two are not directly connected.
放電管１と同４とは、第２図に示すように、先端部近傍
に設けられている連結部７て結合され、また、放電管２
，３も同様に、第５図に示すように、先端部近傍で連結
部８によって連結され、連通している。さらに、放電管
３と同４とは、第１図に示すように、ステム側端部の近
傍（−設けられている連結部９によって連結され、連通
している。これら放電管１〜４および連通部７〜９を通
して電極５，６間に放電路が形成される。なお、連結部
７〜９における連通孔の内径は４〜６ｍｍである。As shown in FIG. 2, the discharge tube 1 and the discharge tube 4 are connected by a connecting portion 7 provided near the tip.
, 3 are similarly connected and communicated by a connecting portion 8 near their tips, as shown in FIG. Furthermore, as shown in FIG. A discharge path is formed between the electrodes 5 and 6 through the communication parts 7 to 9. The inner diameter of the communication hole in the connection parts 7 to 9 is 4 to 6 mm.
放電管１〜４および連結部７〜９の内壁面には、第１図
および第２図に示すように、蛍光体膜１０が連続して形
成されており、管内には水銀と稀ガスが封入されている
。As shown in FIGS. 1 and 2, a phosphor film 10 is continuously formed on the inner wall surfaces of the discharge tubes 1 to 4 and the connecting portions 7 to 9, and mercury and rare gas are contained in the tubes. It is enclosed.
１１は耐熱性合成樹脂製の口金で、基部１２と外観が楕
円柱状のプラグ部１３とからなる。基部１２には放電管
１〜４の間隔とほぼ同間隔に、かつその外径より直径が
若干大きい４個の透孔が設けられている。基部１２は、
放電管１〜４のステム側端部が対応する透孔にそれぞれ
挿通されて、取付けられている。Reference numeral 11 denotes a cap made of heat-resistant synthetic resin, which is composed of a base portion 12 and a plug portion 13 having an elliptical columnar appearance. The base 12 is provided with four through holes at approximately the same intervals as the intervals between the discharge tubes 1 to 4 and having a diameter slightly larger than the outer diameter thereof. The base 12 is
The stem-side ends of the discharge tubes 1 to 4 are inserted and attached to corresponding through holes, respectively.
第６図はこの取付状態を示しており、放電ｔ１゜２のス
テム側端部は一般の蛍光灯の口金接着用の熱硬化性樹脂
接着剤２２で、また放電管３，４のステム側は熱可塑性
樹脂接着剤２３によって、口金基部１２が接着されてい
る。すなわち、電極５゜６を備え、点灯中特に他より温
度か高くなる放電管１．２については、主としてその端
部の放電管３．４とは反対側部分に熱硬化性樹脂接着剤
２２が付与されており、また、電極をもたない放電管３
．４については、主としてその端部の放電管Ｉ。FIG. 6 shows this installation state, where the end of the discharge tube t1゜2 on the stem side is coated with a thermosetting resin adhesive 22 for bonding the base of a general fluorescent lamp, and the stem side of the discharge tubes 3 and 4 is The cap base 12 is bonded with a thermoplastic resin adhesive 23. That is, for the discharge tube 1.2, which is equipped with an electrode 5.6 and whose temperature becomes higher than others during lighting, the thermosetting resin adhesive 22 is mainly applied to the end portion of the discharge tube 1.2 on the opposite side from the discharge tube 3.4. A discharge tube 3 which is provided with electrodes and also has no electrodes
．． 4, mainly the discharge tube I at its end.
２個部分に熱可塑性樹脂接着剤２３が付与されている。A thermoplastic resin adhesive 23 is applied to the two parts.
熱硬化性樹脂接着剤２２としては放電管１，２を強固に
口金１１と接着するもの、たとえばフェノール系樹脂接
着剤を使用することができる。また、熱可塑性樹脂接着
剤２３としては、点灯中、放電管１〜４の熱変形を妨げ
ない程度の熱可塑性を示すものであれば、その種類を問
わない。−例として市販のポリアミド樹脂接着剤がある
。プラグ部１３の側面部分には、第４図に示すように、
照明器具への係止用突起１４．１５と、定格の異なる照
明器具への取付けを防止するための誤使用防止溝１６．
１７とが設けられている。また、プラグ部１３の端面に
はビン１８．１９と同２０゜２１とが植設されており、
放電管１．２の電極５゜６とそれぞれ接続されている。As the thermosetting resin adhesive 22, one that firmly adheres the discharge tubes 1 and 2 to the base 11, such as a phenolic resin adhesive, can be used. Further, the thermoplastic resin adhesive 23 may be of any type as long as it exhibits thermoplasticity to the extent that it does not prevent thermal deformation of the discharge tubes 1 to 4 during lighting. - Examples include commercially available polyamide resin adhesives. As shown in FIG. 4, on the side surface of the plug part 13,
Protrusions 14.15 for locking onto lighting equipment, and grooves 16 to prevent misuse to prevent installation on lighting equipment with different ratings.
17 are provided. Further, on the end face of the plug part 13, a bottle 18, 19 and a pin 20° 21 are installed.
They are respectively connected to the electrodes 5.6 of the discharge tubes 1.2.
この実施例の蛍光灯は、上述したように放電管１〜４と
連結部７〜９とによって連続した放電路が形成されてい
るので、点灯装置に接続すると、一般の蛍光灯同様に電
極５，６間に放電が発生する。放電電流は放電管１．連
結部７．放電管４゜連続部９．放電管３．連続部８およ
び放電管２を通って流れ、蛍光灯が点灯する。As described above, the fluorescent lamp of this embodiment has a continuous discharge path formed by the discharge tubes 1 to 4 and the connecting parts 7 to 9, so when it is connected to a lighting device, the electrode 5 , 6, a discharge occurs. The discharge current is discharge tube 1. Connecting portion 7. Discharge tube 4° continuous part 9. Discharge tube 3. It flows through the continuous section 8 and the discharge tube 2, and the fluorescent lamp lights up.
この実施例において、放電管３，４の口金１１取付部分
側の間隙を先端部側の間隙よりも広くしているため、放
電管３，４の先端部分にそれらを互いに近づける方向に
荷重を加えても、連結部９が破損するおそれがきわめて
少ない。In this embodiment, since the gap on the side where the base 11 of the discharge tubes 3 and 4 is attached is wider than the gap on the tip side, a load is applied to the tips of the discharge tubes 3 and 4 in a direction that brings them closer together. Even if the connecting portion 9 is damaged, there is very little risk of the connecting portion 9 being damaged.
具体的には、放電管３，４の口金側端部の間隙をＧ、先
端部の間隙をｇとし、連通孔９の孔の中心より放電管３
，４の先端部端面までの高さをＬとしたとき、Ｇ／ｇ≦
１２．Ｇ／Ｌ≦０．０２の範囲内であれば、上記方向の
荷重を加えても、それに十分耐えることができる。すな
わち、通常の使用状態において安全と考えられる荷重３
０ｋｇを超える４０〜４５ｋｇの荷重を先端部間に加え
ても、放電管３．４やその連結部９がもつ弾性で変形し
て先端部同士が当接するので、連結部分にのみ応力が集
中するということがなくなり、連結部分が破損するおそ
れが解消される。なお、蛍光灯としての美観上や製造上
の容易さの観点から、Ｇ／ｇの下限値は１．６、Ｇ／Ｌ
の下限値はｏ、ｏｏｓであることが望ましい。Specifically, the gap between the cap side ends of the discharge tubes 3 and 4 is G, and the gap between the tips is g, and the discharge tube 3 is
, 4, when the height to the end surface of the tip part is L, G/g≦
12. As long as G/L≦0.02, even if a load is applied in the above direction, it can sufficiently withstand it. In other words, the load 3 that is considered safe under normal use conditions
Even if a load of 40 to 45 kg exceeding 0 kg is applied between the tips, the elasticity of the discharge tube 3.4 and its connecting portion 9 deforms and the tips come into contact with each other, so stress is concentrated only on the connecting portion. This eliminates the risk of damage to the connecting parts. In addition, from the viewpoint of aesthetics as a fluorescent lamp and ease of manufacture, the lower limit of G/g is 1.6, G/L.
It is desirable that the lower limit of is o, oos.
さらに、この実施例においては、口金１１の透孔の直径
が放電管１〜４の外径より大きく、かつ、放電管３，４
側を熱可塑性樹脂接着剤２３で取付けているため、点灯
中に温度上昇に伴い放電管１゜４、同２，３が熱膨張し
て変形し、それらのステム側端部の間隔が開いても、口
金１１の透孔部分の間隙（図示せず）、さらには熱可塑
性樹脂接着剤２３の塑性により吸収され、この変形が放
電管１〜４に過大な内部応力を発生させ、破壊につなが
るというおそれはない。Furthermore, in this embodiment, the diameter of the through hole of the cap 11 is larger than the outer diameter of the discharge tubes 1 to 4, and
Since the sides are attached with thermoplastic resin adhesive 23, as the temperature rises during lighting, discharge tubes 1°4, 2, and 3 thermally expand and deform, causing the gap between their stem side ends to widen. This deformation is also absorbed by the gap (not shown) in the through-hole portion of the cap 11 and the plasticity of the thermoplastic resin adhesive 23, and this deformation generates excessive internal stress in the discharge tubes 1 to 4, leading to destruction. There is no fear that this will happen.
上工己実施例では放電管１〜４として直管状のものを使
用した場合について述べたが、この形状の放電管に限る
ものでなく、外方向へ湾曲させた形状、たとえば前記四
辺形の対角線に沿って外方向へ湾曲させた形状であって
も、同等の効果を得ることができる。また、上記実施例
では２対の放電管を使用した場合について述べたが、３
対以上の放電管を使用した場合についても、本発明が適
用されることはいうまでもないことである。In the above-mentioned embodiments, straight tube-shaped discharge tubes are used as the discharge tubes 1 to 4. However, the discharge tubes are not limited to this shape, and may have an outwardly curved shape, for example, the diagonal of the quadrilateral. Even if the shape is curved outward along the same direction, the same effect can be obtained. In addition, although the above embodiment describes the case where two pairs of discharge tubes are used, three pairs of discharge tubes are used.
It goes without saying that the present invention is also applicable to cases where a pair or more discharge tubes are used.
発明の効果
本発明の放電灯によれば、複数対の放電管のうち口金側
端部近傍で連結された放電管同士の間隙を、口金を取付
けた端部側が先端部側よりも広くしているため、放電管
側に大きな力を加えても破損するおそれがなく、照明器
具への取付け、それからの取外しを安全に行なうことが
できる。Effects of the Invention According to the discharge lamp of the present invention, the gap between the plurality of pairs of discharge tubes connected near the ends on the base side is made wider on the end side where the base is attached than on the tip side. Therefore, there is no risk of damage even if a large force is applied to the discharge tube side, and it can be safely installed and removed from a lighting fixture.
第１図は本発明にかかる放電灯の実施例の一部破断側面
図、第２図は第１図をその右方向から見た一部破断側面
図、第３図は斜視図、第４図は底面図、第５図はこの実
施例における放電管の連結状態を示す放電管底面図、第
６図は同じく口金部分を破断して示す平面図である。
１〜４・・・・・・・・・放電管、７〜９・・・・・・
・・・連結部、１１ ・・・・・・・・・口金。
代理人の氏名 弁理士 中尾敏男 ほか１名／−４−一
一炊電管
７〜９− 連結部
Ｕ−一一口全
１１図 第２図
３′
第３図
？
第４図
１’／ １５
第５図
第６図1 is a partially cutaway side view of an embodiment of a discharge lamp according to the present invention, FIG. 2 is a partially cutaway side view of FIG. 1 seen from the right side, FIG. 3 is a perspective view, and FIG. 4 is a bottom view, FIG. 5 is a bottom view of the discharge tube showing the connected state of the discharge tubes in this embodiment, and FIG. 6 is a plan view showing the base portion broken away. 1-4...Discharge tube, 7-9...
・・・Connection part, 11 ・・・・・・・・・Base. Name of agent Patent attorney Toshio Nakao and 1 other person/-4-11 cooking tubes 7 to 9- Connecting part U-11 in total Figure 2 Figure 3' Figure 3? Figure 4 1'/15 Figure 5 Figure 6
Claims (1)
て放電路が形成され、かつ前記複数対の放電管の一方の
端部側に口金が取付けられている放電灯であって、前記
放電管のうち前記口金側端部近傍にて連結されている放
電管同士の、前記口金を取り付けている端部側間隙が、
それとは反対の端部側の間隙より広いことを特徴とする
放電灯。A discharge lamp in which adjacent end portions of a plurality of pairs of discharge tubes are alternately connected and connected to form a discharge path, and a cap is attached to one end side of the plurality of pairs of discharge tubes, A gap on the end side where the cap is attached between discharge tubes that are connected near the end on the cap side among the discharge tubes,
A discharge lamp characterized in that the gap is wider than the gap at the opposite end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6216686A JPS62217552A (en) | 1986-03-19 | 1986-03-19 | Discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6216686A JPS62217552A (en) | 1986-03-19 | 1986-03-19 | Discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62217552A true JPS62217552A (en) | 1987-09-25 |
Family
ID=13192264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6216686A Pending JPS62217552A (en) | 1986-03-19 | 1986-03-19 | Discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62217552A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55133744A (en) * | 1979-04-03 | 1980-10-17 | Philips Nv | Low voltage mercury vapor discharge lamp |
-
1986
- 1986-03-19 JP JP6216686A patent/JPS62217552A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55133744A (en) * | 1979-04-03 | 1980-10-17 | Philips Nv | Low voltage mercury vapor discharge lamp |
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