JPH0441565Y2 - - Google Patents
Info
- Publication number
- JPH0441565Y2 JPH0441565Y2 JP8936087U JP8936087U JPH0441565Y2 JP H0441565 Y2 JPH0441565 Y2 JP H0441565Y2 JP 8936087 U JP8936087 U JP 8936087U JP 8936087 U JP8936087 U JP 8936087U JP H0441565 Y2 JPH0441565 Y2 JP H0441565Y2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- lead
- wire
- main body
- discharge lamp
- 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
- 238000003466 welding Methods 0.000 claims description 7
- 239000011521 glass Substances 0.000 description 12
- 239000011324 bead Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
Description
【考案の詳細な説明】
〓産業上の利用分野〓
本考案は冷陰極の蛍光灯など冷陰極放電灯に使
用される電極の構造に関するものである。[Detailed Description of the Invention] Field of Industrial Application The present invention relates to the structure of electrodes used in cold cathode discharge lamps such as cold cathode fluorescent lamps.
〓従来の技術〓
従来のこの種の電極の構造を示すものが第３図
であり、ガラスビーズ２が取付けられた導入線１
に板状の二枚の電極２３を前記導入線１を挟むよ
うにして図中に溶接記号で示したように複数箇所
をスポツト溶接で接続するもので、このとき前記
電極２３には水銀とゲツタとが予めに添付されて
いるものであり、以上のように組立てたものを第
４図に示すようにガラス管４の両端に前記ガラス
ビーズ２で封着することで目的とする冷陰極放電
灯を形成するものである。〓Prior art〓 Fig. 3 shows the structure of a conventional electrode of this kind, in which a lead-in wire 1 to which a glass bead 2 is attached is shown.
Two plate-shaped electrodes 23 are placed on both sides of the lead-in wire 1, and multiple locations are connected by spot welding as shown by welding symbols in the figure. At this time, the electrodes 23 are free of mercury and getters. It is attached in advance, and the object assembled as described above is sealed with the glass beads 2 at both ends of the glass tube 4 as shown in FIG. 4 to form the intended cold cathode discharge lamp. It is something to do.
〓考案が解決しようとする問題点〓
しかしながら、前記に説明した従来の構造の電
極２３は、
板状の二枚の電極２３を棒状の導入線１を挟
むようにスポツト溶接を行うものであるので、
作業時の安定性に欠け取付位置曲りなど不良を
生じやすいと云う生産上の問題点を生ずるもの
であり、
更に、前記電極２３を二枚使用して表面積を
増加させているものの、依然として電極２３の
単位面積当たりの電流密度は高く、この理由に
よりガラス管４壁の黒化が進行し寿命が短い問
題点などを生ずるものであつた。Problems to be Solved by the Invention However, in the conventional structure of the electrode 23 described above, the two plate-shaped electrodes 23 are spot-welded so that the rod-shaped lead-in wire 1 is sandwiched between them. ,
This causes problems in production, such as lack of stability during work and the tendency to cause defects such as bending of the mounting position.Furthermore, although two electrodes 23 are used to increase the surface area, the electrodes 23 are still The current density per unit area of the glass tube is high, and for this reason, the blackening of the walls of the glass tube progresses, resulting in problems such as a short life span.
〓問題点を解決するための手段〓
本考案は前記従来の電極構造に生ずる問題点を
解決するための具体的手段として、冷陰極放電灯
の管内両端部に導入線に接続されて配設されゲツ
タ保持も兼ねる電極において、前記電極は前記導
入線の外径に嵌合する有底管状の導入線接続部
と、この導入線接続部より大きい径の円筒状とさ
れた本体部と、前記導入線接続部と前記本体部と
を接続するロート状部とからなり、前記ゲツタは
前記本体部の内径に嵌合するリング状に形成され
カシメ或いはスポツト溶接により係着手段により
係着されていることを特徴とする冷陰極放電灯用
の電極を提供することで、組立作業が容易で且つ
表面積の大きい電極として、前記従来の問題点を
解決するものである。〓Means for Solving the Problems〓 The present invention is a concrete means for solving the problems that occur in the conventional electrode structure as described above. In the electrode that also serves as a getter retainer, the electrode includes a bottomed tubular lead-in wire connecting portion that fits around the outer diameter of the lead-in wire, a cylindrical body portion having a diameter larger than the lead-in wire connecting portion, and a main body portion that has a diameter larger than the lead-in wire connecting portion; It consists of a funnel-shaped part that connects a wire connection part and the main body part, and the getter is formed in a ring shape that fits into the inner diameter of the main body part, and is fixed by a fastening means by caulking or spot welding. By providing an electrode for a cold cathode discharge lamp characterized by the following, the above-mentioned conventional problems can be solved by providing an electrode that is easy to assemble and has a large surface area.
〓実施例〓
つぎに、本考案を図に示す一実施例に基づいて
詳細に説明する。〓Example〓 Next, the present invention will be explained in detail based on an example shown in the drawings.
尚、理解を容易にするために従来例と同じ部分
には同じ符号を付して説明し、重複する部分では
一部その説明を省略する。 In order to facilitate understanding, the same parts as those in the conventional example will be described with the same reference numerals, and some overlapping parts will not be explained.
第１図、第２図に符号１で示すものは従来例と
同様にガラスビーズ２が取付けられた導入線であ
り、この導入線１には更に電極３が取付けられる
が、該電極３は本考案により、前記導入線１が略
嵌合する内径の有底管状とされた導入線嵌合部３
ａと、ガラス管４に対して適宜な寸法とされ前記
導入線嵌合部３ａより大きな径を持つ円筒状の本
体部３ｂと、前記導入線嵌合部３ａと前記本体部
３ｂとを接続するロート状部３ｃとが鉄板の絞加
工などで一体加工され例えばニツケル鍍金など施
されて形成されたものである。尚、前記ロート状
部３ｃには貫通する開口部３ｄが設けられてこの
電極３が放電を行うときに内面側も関与するよう
にされている。 The reference numeral 1 in FIGS. 1 and 2 is a lead-in wire to which glass beads 2 are attached as in the conventional example, and an electrode 3 is further attached to this lead-in wire 1. By design, the lead-in wire fitting part 3 has a bottomed tube shape with an inner diameter into which the lead-in wire 1 approximately fits.
a, a cylindrical main body part 3b having an appropriate size with respect to the glass tube 4 and a larger diameter than the lead-in wire fitting part 3a, and the lead-in wire fitting part 3a and the main body part 3b are connected. The funnel-shaped portion 3c is integrally formed by drawing an iron plate, and is then plated with nickel, for example. Incidentally, the funnel-shaped portion 3c is provided with a penetrating opening 3d so that when the electrode 3 performs discharge, the inner surface side also participates.
次いでゲツタ５について説明を行えば、例えば
従来例のものと同様に前記電極３にゲツタ処理を
行うことでも目的は達せられるものではあるが、
本考案により前記電極３の本体部３ｂの内径に嵌
合する外径を持つ別体のリング状に形成したゲツ
タ５としてあり、前記本体部３ｂに挿入した後に
カシメなど適宜な係着手段で係着するようにして
ある。 Next, the getter 5 will be explained. Although the purpose can be achieved by performing a getter treatment on the electrode 3 as in the conventional example, for example,
According to the present invention, the getter 5 is formed in a separate ring shape with an outer diameter that fits into the inner diameter of the main body 3b of the electrode 3, and is engaged by an appropriate fastening means such as caulking after being inserted into the main body 3b. It's meant to be worn.
前記説明のように形成された各部品を組立てる
ときには、まず前記本体部３ｂにゲツタ５を前記
説明のようにして係着しておき、次いで前記導入
線１を導入線嵌合部３ａに挿入することで電極３
は正確な取付位置に設定されるものとなるので、
第１図中に溶接記号で示す位置でスポツト溶接を
行えば取付位置のズレなど生ずること無く容易に
組立が可能である。尚、上記説明の作業時におい
て、ゲツタ５が別体とされたことで放電管として
組立てられた後の性能に大きく影響する前記電極
３の油脂類による汚染に対しゲツタ５が別体とさ
れたことで強力な洗浄剤を使用した洗浄などをゲ
ツタ作用を損ずること無く行うことが可能であ
り、また第２図に示すように例えばガラス管４の
内容量（長さ）に応じて適宜にゲツタ５の取付け
る数を調整することも可能である。 When assembling the parts formed as described above, first the getter 5 is engaged with the main body portion 3b as described above, and then the lead-in wire 1 is inserted into the lead-in wire fitting portion 3a. Therefore electrode 3
will be set at the correct mounting position,
If spot welding is performed at the positions indicated by the welding symbols in FIG. 1, assembly can be easily performed without any misalignment of the mounting position. In addition, during the work described above, the getter 5 was made a separate body to prevent contamination of the electrode 3 with oils and fats, which greatly affects the performance after being assembled as a discharge tube. This makes it possible to perform cleaning using a strong cleaning agent without impairing the getter action, and as shown in FIG. It is also possible to adjust the number of 5 attached.
尚、ガラスビーズ２をガラス管４に溶着するな
ど以下の工程は従来例と同様であるのでここでの
詳細な説明は省略する。 Note that the following steps, such as welding the glass beads 2 to the glass tube 4, are the same as those of the conventional example, so a detailed explanation will be omitted here.
〓作用〓
この様に略円筒状に電極３を形成したことで従
来の板状であり直径方向に二枚の電極に比較し
て、 π／２＝1.57倍 に表面積が増加したこと
となり、よつて単位面積当たりの電流密度は、
１／1.57＝63.7％ に低下するものとなる。〓Effect〓 By forming the electrode 3 in a substantially cylindrical shape in this way, the surface area is increased by π/2 = 1.57 times compared to the conventional plate-shaped electrode with two electrodes in the diametrical direction. Therefore, the current density per unit area is
This results in a decrease of 1/1.57=63.7%.
〓考案の効果〓
以上に説明したように本考案により、冷陰極放
電灯用の電極を、導入線の外径に略嵌合する有底
管状の導入線接続部と、この導入線接続部より大
きい径の円筒状とされた本体部と、前記導入線接
続部と前記本体部とを接続するロート状部とから
成る構造としたことで、前記導入線接続部に前記
導入線を挿入するだけで所定の取付位置に正しく
設定できるものとして、この種放電灯の組立作業
を容易とすると共に製品にも品質のバラツキなど
を生じないようにしてコストダウンと品質向上に
優れた効果を奏し、電極を全体が略円筒状の形状
としたことで電極の表面積を増加させて単位面積
当たりの電流密度を低下させ放電灯ガラス管壁の
黒化を防止して寿命の延長させると云う極めて優
れた効果を併せて奏するものである。〓Effect of the invention〓 As explained above, according to the present invention, an electrode for a cold cathode discharge lamp can be connected to a bottomed tube-shaped lead-in wire connecting portion that approximately fits on the outer diameter of the lead-in wire, and from this lead-in wire connecting portion. With the structure consisting of a cylindrical main body with a large diameter and a funnel-shaped part that connects the lead-in wire connection part and the main body, the lead-in wire can be simply inserted into the lead-in wire connection part. As a device that can be set correctly in a predetermined mounting position, it not only simplifies the assembly work of this type of discharge lamp, but also prevents variations in product quality, which has an excellent effect on cost reduction and quality improvement. By making the entire electrode almost cylindrical in shape, the surface area of the electrode is increased, the current density per unit area is reduced, and the blackening of the glass tube wall of the discharge lamp is prevented, resulting in an extremely excellent effect of extending the service life. It is played together.
第１図は本考案に係る冷陰極放電灯の電極の一
実施例を分解した要部で示す斜視図、第２図は同
じ実施例の断面図、第３図は従来例を分解して示
す斜視図、第４図は同じく断面図である。
１……導入線、２……ガラスビーズ、３……電
極、３ａ……導入線嵌合部、３ｂ……本体部、３
ｃ……ロート部、３ｄ……開口部、４……ガラス
管、５……ゲツタ。
Fig. 1 is an exploded perspective view showing essential parts of an embodiment of the cold cathode discharge lamp electrode according to the present invention, Fig. 2 is a sectional view of the same embodiment, and Fig. 3 is an exploded view of a conventional example. The perspective view and FIG. 4 are also sectional views. DESCRIPTION OF SYMBOLS 1... Lead-in wire, 2... Glass beads, 3... Electrode, 3a... Lead-in wire fitting part, 3b... Main body part, 3
c...Funnel part, 3d...Opening part, 4...Glass tube, 5...Getta.
Claims (1)
れて配設されゲツタ保持も兼ねる電極におい
て、前記電極は前記導入線の外径に嵌合する有
底管状の導入線接続部と、この導入線接続部よ
り大きい径の円筒状とした本体部と、前記導入
線接続部と前記本体部とを接続するロート状部
とからなり、前記ゲツタは前記本体部の内径に
嵌合するリング状に形成されカシメ或いはスポ
ツト溶接により係着されていることを特徴とす
る冷陰極放電灯用の電極。 (2) 前記ロート状部には表面側と内面側を貫通す
る開口部が設けられていることを特徴とする実
用新案登録請求の範囲第(1)項記載の冷陰極放電
灯用の電極。[Claims for Utility Model Registration] (1) In an electrode that is connected to both ends of the tube of a cold cathode discharge lamp and that also serves as a getter retainer, the electrode has an electrode that fits on the outer diameter of the lead-in wire. It consists of a bottom tubular lead-in wire connection part, a cylindrical body part having a diameter larger than that of the lead-in wire connection part, and a funnel-shaped part that connects the lead-in wire connection part and the main body part, and the getter is An electrode for a cold cathode discharge lamp, characterized in that it is formed into a ring shape that fits into the inner diameter of a main body and is secured by caulking or spot welding. (2) The electrode for a cold cathode discharge lamp according to claim 1, wherein the funnel-shaped portion is provided with an opening that passes through the front surface and the inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8936087U JPH0441565Y2 (en) | 1987-06-10 | 1987-06-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8936087U JPH0441565Y2 (en) | 1987-06-10 | 1987-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63198160U JPS63198160U (en) | 1988-12-20 |
| JPH0441565Y2 true JPH0441565Y2 (en) | 1992-09-30 |
Family
ID=30948282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8936087U Expired JPH0441565Y2 (en) | 1987-06-10 | 1987-06-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441565Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4650562B2 (en) * | 2008-12-03 | 2011-03-16 | ウシオ電機株式会社 | Short arc type discharge lamp |
-
1987
- 1987-06-10 JP JP8936087U patent/JPH0441565Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63198160U (en) | 1988-12-20 |
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