JPS6336936Y2 - - Google Patents
Info
- Publication number
- JPS6336936Y2 JPS6336936Y2 JP15703782U JP15703782U JPS6336936Y2 JP S6336936 Y2 JPS6336936 Y2 JP S6336936Y2 JP 15703782 U JP15703782 U JP 15703782U JP 15703782 U JP15703782 U JP 15703782U JP S6336936 Y2 JPS6336936 Y2 JP S6336936Y2
- Authority
- JP
- Japan
- Prior art keywords
- filament
- arc tube
- anchor
- built
- ballast
- 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.)
- Expired
Links
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Description
〔考案の技術分野〕
本考案はフイラメントを安定器として外管内に
収容した安定器内蔵形放電灯に関する。
〔考案の技術的背景とその問題点〕
安定器内蔵形放電灯は外管内に発光管と直列に
接続されたフイラメントを収容してあるので、外
部に格別な安定器を必要としない利点がある。
ところで、上記フイラメントは振動による断線
および寿命中における垂れ下がり等を防止するた
めに保持部材としてアンカーが使用される。たと
えば、発光管を取り巻くような形に形成されたフ
イラメントをガラスやセラミクス等の絶縁体に植
設した多数のアンカーで保持したものが知られて
いるが、このものは上記絶縁体および多数のアン
カーによる影を生じやすいとか、部品数が多く組
立工程が複雑である等の欠点がある。これに対し
て、フイラメントを発光管のほぼ長手方向に配置
するとともに、ただ1本のアンカーで保持させる
ようにして上記従来例の欠点の解消を計つたもの
も提案されている。ところが、この改良案ではた
だ1本だけのアンカーにかかる荷重が多数のアン
カーを使用した場合よりも大きいため、振動や衝
撃に対してフイラメントが断線しやすい傾向があ
る。特にこの傾向は発光管を支持し、かつ、フイ
ラメントの一端をも継線支持するサポートワイヤ
の先端を外管トツプ部に係止しないマウント構造
の放電灯において大である。本考案者等はフイラ
メントが断線したものと、断線しなかつたものと
につき仔細に検討した結果、断線はフイラメント
のアンカー保持部の位置に重大な関係があること
が判つた。
〔考案の目的〕
本考案は上記事情を考慮してなされたもので、
フイラメントの断線を防止した安定器内蔵形放電
灯を提供することを目的とする。
〔考案の概要〕
すなわち、本考案は外管トツプ部に先端を係止
しないサポートワイヤを介して発光管を支持する
とともに発光管と直列に接続されたフイラメント
を収容し、フイラメントは発光管のほぼ長手方向
に配置され、かつ、1本のアンカーで保持される
構造の安定器内蔵形放電灯において、上記フイラ
メントはアンカー保持部を境界として一方の長さ
をl1、他方の長さをl2としたとき、
l1:l2=1:1.1〜2
としたことを特徴とする。
〔考案の実施例〕
以下、本考案の詳細を図示の実施例を参照して
説明する。第1図は安定器内蔵形放電灯の1種で
ある210V、160W定格の安定器内蔵形高圧水銀ラ
ンプを示す。図において1は外管、2は内部に希
ガスおよび水銀を封入した全長約60mmの石英ガラ
ス製発光管、3a,3bは主電極、4は始動用補
助電極、5は径が約0.1mmのタングステン線を全
長約35mmの2重コイルに形成したフイラメントを
示す。発光管2はステム6から延長された一対の
サポートワイヤ7a,7bにホルダ8a,8bを
介して支持されている。上記一対のサポートワイ
ヤ7a,7bはそれぞれの先端を外管トツプ部1
aに係止しない形状としている。その理由は、外
管1の内面に必要に応じて設ける蛍光体または拡
散膜等の被膜をサポートワイヤの先端で傷つける
のを避けること、サポートワイヤをできるだけ短
くすることによつて発光管2からの放射光を遮光
して影が生じるのを防止すること、外管トツプ部
1aにサポートワイヤの係止部を形成することに
よるコストアツプを避けること、さらには、比較
的小形のランプにおいては、サポートワイヤ7
a,7bの保持強度はステム6側だけで充分で、
外管トツプ側までわざわざ係止する必要がないか
らである。また、フイラメント5は発光管2と直
列になるように一方の主極3bと一方のサポート
ワイヤ7bとの間に電気的および機械的に接続さ
れ発光管2の長手方向にほぼ沿つて、配置されて
いる。9はフイラメント5を保持するモリブデン
などの難溶融性金属線からなるアンカーで、基端
が発光管2の封止部2aに植設されている。な
お、アンカー線9によるフイラメント5の保持は
第2図に示すように、全長約35mmのフイラメント
5の長さ方向の中心点を避けた点に径約0.3mmの
アンカー9の一端を巻回して保持部9aとし、こ
の保持部9aを境界として短い方のフイラメント
部の長さをl1、長い方のフイラメント部の長さを
l2としたとき、l1が約14mm、l2が約21mmすなわち、
l1:l2=1:1.5
となるように形成されている。
このように構成されたランプは20本につき、そ
れぞれ包装箱に入れてランプが横向きになる方向
で高さ70cmの所から落下試験を行なつたが、1本
もフイラメントの断線は発生しなかつた。
ランプを横向きで試験したのは垂直方向にした
場合よりもフイラメントの断線が発生しやすいこ
とがランプ輪送試験で判つているからであり、ま
た落下高さについても通常のランプ輪送や荷扱い
では70cm程度の高さからの落下に耐えれば実用上
問題ないとされているからである。
次に上記実施例と同種ランプにつき、l1:l2の
比を種々変化させたランプを製作し、落下試験を
行なつた結果を第1表に示す。表の数値はフイラ
メント断線本数/試験全数(各20本)の比率
(%)で示す。
[Technical Field of the Invention] The present invention relates to a discharge lamp with a built-in ballast in which a filament is housed in an outer bulb as a ballast. [Technical background of the invention and its problems] A discharge lamp with a built-in ballast has a filament connected in series with the arc tube inside the outer bulb, so it has the advantage of not requiring a special external ballast. . Incidentally, an anchor is used as a holding member for the filament in order to prevent the filament from breaking due to vibration and from sagging during its life. For example, it is known that a filament formed to surround an arc tube is held by a number of anchors embedded in an insulator such as glass or ceramics; They have drawbacks such as being susceptible to shadows caused by shadows, and having a large number of parts and a complicated assembly process. On the other hand, a method has been proposed in which the filament is arranged substantially in the longitudinal direction of the arc tube and is held by only one anchor, thereby solving the drawbacks of the conventional example. However, in this improved proposal, the load applied to just one anchor is greater than when multiple anchors are used, so the filament tends to break due to vibration or impact. This tendency is particularly strong in discharge lamps having a mount structure in which the tip of a support wire that supports the arc tube and also supports one end of the filament is not secured to the top of the outer tube. The inventors of the present invention carefully examined cases in which the filament was broken and cases in which the filament was not broken, and as a result, it was found that the breakage has a significant relationship with the position of the anchor holding portion of the filament. [Purpose of the invention] This invention was made in consideration of the above circumstances.
The object of the present invention is to provide a discharge lamp with a built-in ballast that prevents filament breakage. [Summary of the invention] That is, the present invention supports the arc tube through a support wire whose tip is not locked at the top of the outer tube, and houses a filament connected in series with the arc tube. In a discharge lamp with a built-in ballast arranged in the longitudinal direction and held by a single anchor, the filament has a length l 1 on one side and a length l 2 on the other side with the anchor holding part as the boundary. It is characterized in that l 1 :l 2 =1:1.1 to 2. [Embodiments of the invention] Details of the invention will be described below with reference to illustrated embodiments. Figure 1 shows a 210V, 160W rated high-pressure mercury lamp with built-in ballast, which is a type of discharge lamp with built-in ballast. In the figure, 1 is an outer tube, 2 is a quartz glass arc tube with a total length of about 60 mm with rare gas and mercury sealed inside, 3a and 3b are main electrodes, 4 is an auxiliary starting electrode, and 5 is a quartz glass arc tube with a diameter of about 0.1 mm. This figure shows a filament made of tungsten wire formed into a double coil with a total length of about 35 mm. The arc tube 2 is supported by a pair of support wires 7a, 7b extending from the stem 6 via holders 8a, 8b. The pair of support wires 7a and 7b have their respective tips connected to the outer tube top portion 1.
It has a shape that does not lock in a. The reason for this is to avoid damaging the coating such as phosphor or diffusion film provided on the inner surface of the outer bulb 1 as necessary with the tip of the support wire, and to make the support wire as short as possible to prevent light from the arc tube 2. To prevent the formation of shadows by blocking the emitted light, to avoid the increase in cost due to the formation of a support wire locking part in the outer tube top part 1a, and furthermore, in a relatively small lamp, the support wire 7
The holding strength of a and 7b is sufficient only on the stem 6 side,
This is because there is no need to take the trouble to lock the top side of the outer tube. Further, the filament 5 is electrically and mechanically connected between one main pole 3b and one support wire 7b so as to be in series with the arc tube 2, and is arranged substantially along the longitudinal direction of the arc tube 2. ing. Reference numeral 9 denotes an anchor made of a hard-to-fusible metal wire such as molybdenum that holds the filament 5, and its base end is implanted in the sealing portion 2a of the arc tube 2. As shown in Fig. 2, the filament 5 is held by the anchor wire 9 by winding one end of the anchor 9, which has a diameter of about 0.3 mm, around a point that avoids the longitudinal center point of the filament 5, which has a total length of about 35 mm. Let the holding part 9a be the boundary, and the length of the shorter filament part is l 1 and the length of the longer filament part is l 1 with this holding part 9a as the boundary.
When l 2 , l 1 is approximately 14 mm and l 2 is approximately 21 mm, that is, l 1 :l 2 =1:1.5. Twenty lamps constructed in this way were placed in a packaging box and subjected to a drop test from a height of 70cm with the lamps facing sideways, but none of the lamps broke the filament. . The reason we tested the lamp horizontally was because it has been shown in lamp wheeling tests that filament breakage is more likely to occur than when the lamp is oriented vertically, and the drop height was also determined compared to normal lamp wheeling and cargo handling. This is because it is said that there is no practical problem as long as it can withstand a fall from a height of about 70 cm. Next, lamps of the same type as in the above example were manufactured with various l 1 :l 2 ratios, and a drop test was conducted. Table 1 shows the results. The values in the table are expressed as the ratio (%) of number of filament breaks/total number of tests (20 each).
【表】
第1表に示す結果から、l1:l2=1:1.1〜2と
すれば、上記実用的基準(落下高さ70cm)を充分
満足することが判る。さらに信頼性を増すために
落下高さを80cmにとるならば、l1:l2=1:1.2〜
1.8にすれば一層好ましい。
次に、第2図において矢印で示すようにアンカ
ー保持部9aを反対方向に移動させ、上記第1表
に示すl1とl2を逆転させる、つまり上記試験では
短かくした側のフイラメント部の長さl1を長くし
てl2とし、一方長くした側のフイラメント部の長
さl2を短かくしてl1とし、上記第1表における場
合と全く同様の落下試験を行なつた結果を第2表
に示す。[Table] From the results shown in Table 1, it can be seen that if l 1 :l 2 =1:1.1 to 2, the above practical standard (drop height 70 cm) is fully satisfied. If we set the drop height to 80cm to further increase reliability, then l 1 :l 2 = 1:1.2~
It is even more preferable to set it to 1.8. Next, the anchor holding part 9a is moved in the opposite direction as shown by the arrow in FIG. 2, and l 1 and l 2 shown in Table 1 above are reversed. The length l1 was lengthened to l2 , while the length l2 of the filament part on the longer side was shortened to l1 , and a drop test was conducted in exactly the same manner as in Table 1 above.The results are shown in Table 1. It is shown in Table 2.
第3図〜第5図は他の実施例を示し、上記第1
図示と同じ安定器内蔵形高圧水銀ランプである
が、マウント(外管内封装物)形状が異なるもの
である。すなわち、第3図示のランプはフイラメ
ント5が主極3aとサポートワイヤ7aとの間に
発光管2の長手方向にほぼ沿つて、かつ、発光管
2と直列に配置され、アンカー9の基端は発光管
2の口金側封止部2bに植設したもの。第4図示
のランプはフイラメント5が主極3aとサポート
ワイヤ7bとの間に発光管2の長手方向にほぼ沿
つて、かつ発光管2と直列に配置され、アンカー
9の基端はステム6に植設された支持線10に接
続固定したもの。第5図示のランプはほぼ第4図
示のものと同じで、ただアンカー9の基端を電気
絶縁物11を介してサポートワイヤ7bに非導電
的に接続した点において相違するものである。
これ等他の実施例のランプにおいても、第1図
示の実施例の場合と同様にl1:l2=1:1.1〜2の
範囲に設定すれば、高さ70cmの落下試験でフイラ
メントの断線は発生しなかつた。
また、上記各実施例と同様の形状で定格が異な
る110V 160W、210V 250W、200V 100W等の各
種安定器内蔵形高圧水銀ランプについても同様の
効果が得られることを確認した。
さらにまた、本考案は安定器内蔵形メタルハラ
イドランプ等の他品種安定器内蔵形放電灯にも適
用できるものである。
〔考案の効果〕
以上詳述した通り本考案は、安定器内蔵形放電
灯においてフイラメントを1本のアンカーで保持
するとともに、上記アンカー保持部を境界として
いずれか一方の長さをl1、他方の長さをl2とした
とき、 l1:l2=1:1.1〜2
としたので、フイラメントは振動や衝撃に対して
実用上充分な強度を有し、断線が防止できる。
3 to 5 show other embodiments, and the above-mentioned
This is the same high-pressure mercury lamp with built-in ballast as shown, but the shape of the mount (outer tube inner enclosure) is different. That is, in the lamp shown in the third figure, the filament 5 is disposed between the main pole 3a and the support wire 7a, substantially along the longitudinal direction of the arc tube 2, and in series with the arc tube 2, and the base end of the anchor 9 is It is implanted in the cap side sealing part 2b of the arc tube 2. In the lamp shown in FIG. 4, the filament 5 is disposed between the main pole 3a and the support wire 7b, substantially along the longitudinal direction of the arc tube 2, and in series with the arc tube 2, and the base end of the anchor 9 is connected to the stem 6. Connected and fixed to the planted support wire 10. The lamp shown in FIG. 5 is substantially the same as that shown in FIG. 4, except that the proximal end of the anchor 9 is non-conductively connected to the support wire 7b via an electrical insulator 11. In the lamps of these other embodiments, if l 1 :l 2 is set in the range of 1:1.1 to 2 as in the case of the first embodiment, the filament will not break in the drop test at a height of 70 cm. did not occur. Furthermore, it was confirmed that similar effects could be obtained with various types of high-pressure mercury lamps with built-in ballasts, such as 110V 160W, 210V 250W, and 200V 100W, which had the same shape as the above examples but had different ratings. Furthermore, the present invention can be applied to other types of discharge lamps with built-in ballasts, such as metal halide lamps with built-in ballasts. [Effects of the invention] As detailed above, the present invention holds the filament with one anchor in a discharge lamp with a built-in ballast, and sets the length of one of the anchor holding parts as a boundary to l 1 and the length of the other. When the length of is l 2 , l 1 :l 2 =1:1.1 to 2, so the filament has practically sufficient strength against vibrations and shocks, and breakage can be prevented.
第1図は本考案の一実施例の断面図、第2図は
同じく要部拡大図、第3図〜第5図は本考案の他
の実施例の正面図である。
1……外管、2……発光管、3a,3b……主
電極、5……フイラメント、7a,7b……サポ
ートワイヤ、9……アンカー、9a……アンカー
保持部。
FIG. 1 is a sectional view of one embodiment of the present invention, FIG. 2 is an enlarged view of the main part, and FIGS. 3 to 5 are front views of other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... Outer tube, 2... Arc tube, 3a, 3b... Main electrode, 5... Filament, 7a, 7b... Support wire, 9... Anchor, 9a... Anchor holding part.
Claims (1)
ートワイヤを介して発光管を支持するとともに発
光管と直列に接続されたフイラメントを収容し、
フイラメントは発光管のほぼ長手方向に配置さ
れ、かつ、1本のアンカーで保持される構造の安
定器内蔵形放電灯において、上記フイラメントは
アンカー保持部を境界としていずれか一方の長さ
をl1、他方の長さをl2としたとき、 l1:l2=1:1.1〜2 としたことを特徴とする安定器内蔵形放電灯。[Claims for Utility Model Registration] A filament is housed in the outer tube that supports the arc tube via a support wire whose tip is not locked to the top of the outer tube and is connected in series with the arc tube,
In a discharge lamp with a built-in ballast in which the filament is arranged approximately in the longitudinal direction of the arc tube and is held by one anchor, the length of the filament is l 1 on either side with the anchor holding part as the boundary. A discharge lamp with a built-in ballast, characterized in that when the length of the other side is l2 , l1 : l2 =1:1.1 to 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15703782U JPS5962665U (en) | 1982-10-19 | 1982-10-19 | Discharge lamp with built-in ballast |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15703782U JPS5962665U (en) | 1982-10-19 | 1982-10-19 | Discharge lamp with built-in ballast |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5962665U JPS5962665U (en) | 1984-04-24 |
JPS6336936Y2 true JPS6336936Y2 (en) | 1988-09-29 |
Family
ID=30346343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15703782U Granted JPS5962665U (en) | 1982-10-19 | 1982-10-19 | Discharge lamp with built-in ballast |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5962665U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011040472A1 (en) | 2009-09-29 | 2011-04-07 | 株式会社日本触媒 | Particulate water absorbent and process for production thereof |
-
1982
- 1982-10-19 JP JP15703782U patent/JPS5962665U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5962665U (en) | 1984-04-24 |
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