JP2003178668A - Lead-in wire for vessel and vessel - Google Patents
Lead-in wire for vessel and vesselInfo
- Publication number
- JP2003178668A JP2003178668A JP2001375417A JP2001375417A JP2003178668A JP 2003178668 A JP2003178668 A JP 2003178668A JP 2001375417 A JP2001375417 A JP 2001375417A JP 2001375417 A JP2001375417 A JP 2001375417A JP 2003178668 A JP2003178668 A JP 2003178668A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- lead
- sealing
- alloy
- coating layer
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】 本発明は、放電ランプや電
球などの管球を構成する透光性気密容器内に封止される
導入線およびこの導入線を用いた管球に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead wire sealed in a translucent airtight container that constitutes a bulb such as a discharge lamp or a light bulb, and a bulb using the lead wire.
【０００２】[0002]
【従来の技術】 管球、たとえば蛍光ランプは、透光性
気密容器を形成するガラスバルブ内に発光放電媒体とし
てアルゴンなどの希ガスを封入するとともに一対の放電
電極を導入線を介し対向して設けてある。2. Description of the Related Art In a tube, for example, a fluorescent lamp, a rare gas such as argon is enclosed as a light-emission discharge medium in a glass bulb forming a translucent airtight container, and a pair of discharge electrodes are opposed to each other through an introduction line. It is provided.
【０００３】上記導入線は、バルブのガラスと近似した
熱膨張率を有するジュメット線（軟質ガラスに対応）や
コバール線（硬質ガラスに対応）などの封着線部の一端
側にニッケル線やニッケルメッキ金属線などから形成さ
れた内部導入線や冷陰極などの電極からなる内部導体
が、他端側には良導電性を得るため銅被覆層が施された
鉄線などで形成された外部導入線が、それぞれ突き合せ
溶接手段により接続した各部が別部材の３部品で構成さ
れている。（なお、内部導体部と封着線部とを同一線材
あるいは外部導入線部と封着線部とを同一線材とした、
２部品で構成した導入線もある。）
そして、バルブのガラスと気密に封止された封着線に接
続した内部導入線に放電電極が設けられている。（封着
線に直接電極が接続されている場合もある。）また、封
着線に接続しバルブ外に延出した外部導入線が直接に給
電端子部材あるいはホルダや口金の端子部材に接続さ
れ、上記電極へはこの端子部材を介し給電するようにな
っている。The lead-in wire is a nickel wire or a nickel wire at one end of a sealing wire portion such as a Dumet wire (corresponding to soft glass) or a Kovar wire (corresponding to hard glass) having a coefficient of thermal expansion similar to that of glass of a bulb. An internal lead wire made of plated metal wire or an internal conductor consisting of electrodes such as cold cathodes, and an external lead wire made of an iron wire or the like with a copper coating layer on the other end to obtain good conductivity However, each part connected by butt welding means is composed of three parts which are separate members. (Note that the inner conductor portion and the sealing wire portion are the same wire material, or the external introduction wire portion and the sealing wire portion are the same wire material,
There is also an introduction line made up of two parts. ) Then, a discharge electrode is provided on the internal lead-in wire connected to the sealing glass which is hermetically sealed with the glass of the bulb. (In some cases, the electrode may be directly connected to the sealing wire.) Also, the external introduction wire that is connected to the sealing wire and extends outside the valve is directly connected to the power supply terminal member or the holder or the terminal member of the base. Power is supplied to the electrodes through the terminal members.
【０００４】一方、蛍光ランプや電球などの管球は、上
記構成の導入線を用い自動機械により製作されるが、導
入線をガラスバルブやガラスステムと封止する機械で
は、数百本の導入線を収納したホッパーから１本ずつ導
入線を摘み出し供給するように調整されているが、時
折、複数の導入線が同時供給されて不良封止バルブや不
良ステムを発生することがあった。On the other hand, fluorescent lamps, light bulbs and other bulbs are manufactured by an automatic machine using the lead wire having the above-mentioned structure. In a machine that seals the lead wire with a glass bulb or glass stem, hundreds of tubes are introduced. Although it is adjusted so that the introduction lines are picked up and supplied one by one from the hopper that stores the lines, sometimes a plurality of introduction lines are simultaneously supplied and a defective sealing valve or a defective stem is generated.
【０００５】また、封止および排気が終了したバルブ
は、バルブ外に延出した外部導入線を給電端子部材ある
いはホルダや口金に案内や接続するのに先立ち、挿通口
や端子部材の位置や形状に合せて外部導入線のフォーミ
ング（形付け）が行われるが、このフォーミングされた
所定形状から変形してしまうことがあり、外部導入線と
端子部材との位置が合致せず手直しを要するなどのこと
が往々に発生していた。Further, the valve, which has been sealed and evacuated, has the position and shape of the insertion port and the terminal member prior to guiding and connecting the external lead wire extending outside the valve to the power feeding terminal member or the holder or the base. The external lead-in wire is formed (shaped) according to the above, but it may be deformed from this formed predetermined shape, and the position of the external lead-in wire and the terminal member do not match, requiring rework. Things often happened.
【０００６】さらに、バルブと封着線との封止作業の
際、封着線に隣接する外部導入線も加熱により銅表面に
酸化膜を生じることがあり、甚しい酸化膜の場合には外
部導入線と端子部材との溶接やろう付けによる接続に当
り酸化膜を除去する作業を要し、薬品による除去の場合
は後処理に多くの労力を要していた。Furthermore, during the sealing work between the valve and the sealing wire, an external lead wire adjacent to the sealing wire may also generate an oxide film on the copper surface due to heating. The work of removing the oxide film was required for the connection between the lead-in wire and the terminal member by welding or brazing, and in the case of the removal by chemicals, a lot of labor was required for the post-treatment.
【０００７】[0007]
【発明が解決しようとする課題】 このような不具合の
発生につき本発明者等が究明したところ、銅被覆層の厚
さと外部導入線の剛性に不具合があることが分かった。
すなわち、従来の外部導入線は、たとえば外径が約０．
４ｍｍで２０〜２５μｍの被覆層厚さの銅メッキした鉄
線（鉄線に対し銅が２０〜２５重量％）が用いられてい
た。When the present inventors investigated the occurrence of such a problem, it was found that there was a problem in the thickness of the copper coating layer and the rigidity of the external lead wire.
That is, a conventional external lead wire has an outer diameter of about 0.
A copper-plated iron wire (20-25% by weight of copper with respect to the iron wire) having a coating layer thickness of 4 mm and a thickness of 20-25 μm was used.
【０００８】そして、上記銅メッキ厚さであると、溶接
時に封着線と外部導入線との溶接部の周りに融点の低い
銅成分のばり状のスプラッシュ（はね）の発生が起こ
り、このはねによるばりが隣接する導入線を引っ掛けて
一度に複数本の導入線を供給したり、過剰の導入線が供
給口を塞ぐなど不良発生の原因となっていた。With the above copper plating thickness, flash-like splashes of a copper component having a low melting point are generated around the welded portion between the sealing wire and the external introduction wire during welding. The burrs caused by splashing caused the occurrence of defects such as hooking adjacent lead wires to supply a plurality of lead wires at one time, and excessive lead wires blocking the feed port.
【０００９】また、鉄線は剛性が低く、特に細線の場合
は他の部材と少々接触しただけでも変形を来し、外部導
入線が位置ずれして自動的に接続されることを阻害して
いた。Further, the iron wire has a low rigidity, and particularly in the case of a thin wire, the wire is deformed even by a slight contact with other members, which prevents the external lead wire from being displaced and being automatically connected. .
【００１０】本発明は上記事情に鑑みなされたもので、
封着線と溶接により接続される外部導入線の材質および
銅被覆層の厚さなどを選ぶことにより、製品の品質と歩
留りの向上およびコストの低減がはかれる導入線および
管球を提供することを目的とする。The present invention has been made in view of the above circumstances.
By selecting the material of the external lead wire connected by welding and the sealing wire and the thickness of the copper clad layer, it is possible to provide the lead wire and the tube that can improve the product quality and yield and reduce the cost. To aim.
【００１１】[0011]
【課題を解決するための手段】 本発明の請求項１に記
載の管球用導入線は、封着線と、この封着線の一端部に
溶接された内部導体と、上記封着線の他端部に溶接され
た、鉄成分を主体とする芯線の表面に被覆層厚さが１〜
５μｍの銅被覆層を形成した外部導入線とを備えたこと
を特徴とする。Means for Solving the Problems The lead-in tube bulb according to claim 1 of the present invention is a sealing wire, an internal conductor welded to one end of the sealing wire, and the sealing wire. The thickness of the coating layer is 1 to the surface of the core wire mainly composed of the iron component, which is welded to the other end.
An external lead wire having a copper coating layer of 5 μm is provided.
【００１２】本発明の請求項１に記載の管球用導入線
は、外部導入線の芯線に被覆した銅被覆層の層厚さを１
〜５μｍと従来の４〜２５％程度の薄さとし銅Ｃｕの使
用量を少なくすることにより、封着線との溶接部の周囲
に発生するスプラッシュ（はね）の低減がはかれた。In the tube lead-in wire according to claim 1 of the present invention, the layer thickness of the copper coating layer covering the core wire of the external lead-in wire is 1 or less.
By reducing the amount of copper Cu, which is about 5 to 5 μm and the conventional thinness of about 4 to 25%, the splash (splash) generated around the welded portion with the sealing wire was reduced.
【００１３】そして、このスプラッシュ（はね）の低減
により、ランプ製造装置においてばりによる導入線相互
のからみがなくなり、円滑な導入線の供給が行える。By reducing the splash, the entanglement between the introduction lines due to flash in the lamp manufacturing apparatus is eliminated, and the introduction line can be smoothly supplied.
【００１４】この外部導入線に被覆された銅被覆層の層
厚さは１〜５μｍの範囲内であればよく、層厚さが１μ
ｍ未満であると導入線とガラスとの封止作業の際の加熱
で大気中にある銅被覆層に酸化を生じることがあったり
電気的接触が低下する虞があり、また、５μｍを超える
と銅の使用量が多くコスト低減への寄与が少なくなり好
ましくなかった。The layer thickness of the copper coating layer coated on the external lead wire may be in the range of 1 to 5 μm, and the layer thickness is 1 μm.
If it is less than m, the copper coating layer in the atmosphere may be oxidized or electrical contact may be deteriorated by heating during the sealing work between the lead-in wire and the glass, and if it exceeds 5 μm. Since the amount of copper used was large and the contribution to cost reduction was small, it was not preferable.
【００１５】また、外部導入線の芯線材料を鉄Ｆｅ成分
を主体とした合金とし、鉄単独や銅単独からなるものに
比べて剛性を高め変形の発生を防ぐようにした。Further, the core wire material of the externally introduced wire is made of an alloy mainly composed of iron Fe component so that the rigidity is increased and the occurrence of deformation is prevented as compared with the case where iron or copper alone is used.
【００１６】この芯線材料の鉄Ｆｅ成分の比率は、４０
〜７０重量％程度で、ニッケルＮｉ、クロムＣｒやコバ
ルトＣｏなどからなる合金で、鉄の成分比が４０重量％
未満で添加するニッケルＮｉ、クロムＣｒやコバルトＣ
ｏなどの割合が増すとコストが高くなり、また、鉄が７
０重量％を超えると、剛性が低く、外部導入線の整形後
に変形を生じ易いなどの不具合がある。The ratio of iron Fe component of this core wire material is 40
About 70% by weight, it is an alloy composed of nickel Ni, chromium Cr, cobalt Co, etc., and the ratio of iron is 40% by weight.
Nickel Ni, chromium Cr and cobalt C added with less than
The cost increases as the proportion of o, etc. increases, and iron becomes 7
If it exceeds 0% by weight, the rigidity is low and there is a problem such that deformation is likely to occur after shaping the external lead wire.
【００１７】なお、本発明ならびに以下の各発明におい
て、特に指定しない限り用語の定義および技術的意味は
次ぎによる。In the present invention and the following inventions, the definitions and technical meanings of terms are as follows unless otherwise specified.
【００１８】本発明の導入線の材料は、外部導入線を除
き特に規制されないが、封着線は対応するガラスによ
り、軟質ガラスの場合はジュメット線などが、硬質ガラ
スの場合はコバール線などが用いられる。また、内部導
体はニッケル線やニッケルメッキ金属線などからなる内
部導入線あるいは放電電極を形成する棒状、板状、筒状
や塊状の冷陰極などである。The material of the lead wire of the present invention is not particularly limited except for the external lead wire, but the sealing wire is made of corresponding glass, such as Dumet wire for soft glass and Kovar wire for hard glass. Used. In addition, the internal conductor is a rod-shaped, plate-shaped, cylindrical, or lump-shaped cold cathode that forms an internal introduction wire made of a nickel wire or a nickel-plated metal wire or a discharge electrode.
【００１９】本発明の請求項２に記載の管球用導入線
は、封着線と、この封着線の一端部に溶接された内部導
体と、上記封着線の他端部に溶接された、鉄成分を主体
とする芯線の表面に被覆層厚さが１〜５μｍの銅被覆層
を形成するとともに銅被覆層の外側をボレーション処理
した外部導入線とを備えたことを特徴とする。The tube lead-in wire according to claim 2 of the present invention is a sealing wire, an internal conductor welded to one end of the sealing wire, and another end of the sealing wire. In addition, a copper coating layer having a coating layer thickness of 1 to 5 μm is formed on the surface of a core wire mainly composed of an iron component, and the outside of the copper coating layer is subjected to a boration treatment, and an external introduction wire is provided. .
【００２０】上記請求項１に記載したと同様な作用を奏
するとともに、銅被覆層の外側表面を硼砂Ｎａ2 Ｂ4 Ｏ
7 などの薄膜層からなるボレーション処理を施しておけ
ば、封止作業時など加熱の際、外部導入線表面の銅被覆
層の酸化速度を鈍らせ酸化を防ぐことができる。The same effect as described in claim 1 is obtained, and the outer surface of the copper coating layer is borax Na 2 B 4 O.
If a boration treatment consisting of a thin film layer such as 7 is applied, it is possible to prevent the oxidation by slowing down the oxidation rate of the copper coating layer on the surface of the external introduction wire during heating such as sealing operation.
【００２１】この硼砂Ｎａ2 Ｂ4 Ｏ7 は電気的には絶縁
物であるが、膜厚が約０．１〜０．２μｍ程度の極めて
薄いものであり、外部導入線と給電端子部材などとの接
続の際に電気的に障害があれば被接続部分の薄膜層を剥
離したり、温度上昇の低い先端側には初めから薄膜層を
形成しておかないようにしておいてもよい。The borax Na 2 B 4 O 7 is an electrically insulating material, but is extremely thin with a film thickness of about 0.1 to 0.2 μm, and is used as an external lead wire and a power supply terminal member. If there is an electrical failure during the connection, the thin film layer of the connected portion may be peeled off, or the thin film layer may not be formed from the beginning on the tip side where the temperature rise is low.
【００２２】なお、軟質ガラス対応の封着線部にジュメ
ット線が用いられる導入線では、封着線への硼砂Ｎａ2
Ｂ4 Ｏ7 の被膜を形成する際に外部導入線の表面にも同
時にボレーション処理を行うようにしてもよい。In the case of a dumet wire used for the sealing line portion corresponding to soft glass, borax Na 2 is applied to the sealing line.
When the B 4 O 7 coating film is formed, the surface of the external lead-in wire may be subjected to the boration treatment at the same time.
【００２３】本発明の請求項３に記載の管球用導入線
は、上記封着線と内部導体とが単一線であることを特徴
とする。The tube lead-in wire according to claim 3 of the present invention is characterized in that the sealing wire and the internal conductor are a single wire.
【００２４】電極との接続に導電的など何等支障を生じ
ない場合は、内部導体部と封着線部とを一本の線材で共
用することにより、材料数および溶接数を減らすことが
できる。If there is no problem in terms of electrical connection to the connection with the electrodes, the number of materials and the number of welds can be reduced by sharing the internal conductor portion and the sealing wire portion with one wire.
【００２５】本発明の請求項４に記載の管球用導入線
は、外部導入線の芯線がＦｅ−Ｎｉ合金、Ｆｅ−Ｎｉ−
Ｃｒ合金、Ｆｅ−Ｎｉ−Ｃｏ合金、Ｆｅ−Ｍｏ−Ｃｏ−
Ｓｉ合金、Ｆｅ−Ｃｏ合金から選ばれたものであること
を特徴とする。In the tube lead-in wire according to claim 4 of the present invention, the core wire of the external lead-in wire is Fe-Ni alloy, Fe-Ni-.
Cr alloy, Fe-Ni-Co alloy, Fe-Mo-Co-
It is characterized by being selected from Si alloys and Fe-Co alloys.
【００２６】鉄Ｆｅ−ニッケルＮｉ合金としては、Ｆｅ
６４重量％−Ｎｉ３６重量％のアンバー、Ｆｅ５８重量
％−Ｎｉ４２重量％のＮＳＤやＦｅ４８重量％−Ｎｉ５
２重量％のＴＮＧなどがある。また、Ｆｅ５２重量％−
Ｎｉ４２重量％−Ｃｒ６重量％合金、Ｆｅ５４重量％−
Ｎｉ２９重量％−Ｃｏ１７重量％合金などを用いること
ができる。As an iron Fe-nickel Ni alloy, Fe
64 wt% -Ni 36 wt% Amber, Fe 58 wt% -Ni 42 wt% NSD and Fe 48 wt% -Ni5
2% by weight of TNG and the like. Fe52 wt%-
Ni 42 wt% -Cr 6 wt% alloy, Fe 54 wt%-
An alloy of Ni 29 wt% -Co 17 wt% can be used.
【００２７】これは、対応するガラス材質や価格などに
応じ上記芯線用金属材料中から選ぶことによって、上記
請求項１ないし３の作用を奏する。According to the corresponding glass material, price, etc., this is selected from the above-mentioned core metal materials, whereby the effects of the above-mentioned claims 1 to 3 are achieved.
【００２８】また、この芯線材料は鉄Ｆｅ成分を主体と
した合金で、鉄成分の比率は、４０〜７０重量％程度、
好ましくは４８〜６４重量％程度である。Further, this core material is an alloy mainly composed of iron Fe component, and the ratio of iron component is about 40 to 70% by weight,
It is preferably about 48 to 64% by weight.
【００２９】本発明の請求項５に記載の管球は、透光性
気密容器と、この容器の封止部に封着線部分が封着され
た上記請求項１ないし４いずれか一記載の管球用導入線
と、上記容器内の内部導体部に接続された電極とを具備
していることを特徴とする。The tube according to claim 5 of the present invention is the translucent airtight container, and the sealing wire portion is sealed to the sealing part of the container according to any one of claims 1 to 4. It is characterized in that it is provided with a lead-in wire for a bulb and an electrode connected to an internal conductor portion in the container.
【００３０】上記請求項１ないし４に記載の作用を奏す
る導入線を用いた管球は、銅量を減らすとともにばりの
少ない導入線を用いることにより、管球製造時の歩留り
向上およびコストの低減がはかれる。In the tube using the lead wire having the effects described in claims 1 to 4, the lead amount is improved and the cost is reduced at the time of manufacturing the tube by reducing the amount of copper and using the lead wire with less flash. Be peeled off.
【００３１】この発明の透光性気密容器とは、軟質ガラ
スや硬質ガラスあるいはセラミックスなどからなるバル
ブおよびこのバルブに封止されて気密容器を一体的に形
成するステムなどをいう。また、導入線をバルブやステ
ムに封止する手段は圧潰型封止（ピンチシール、ボタン
ステムなど）、焼き細め封止などその手段は問わない。The translucent airtight container of the present invention refers to a valve made of soft glass, hard glass or ceramics, and a stem sealed with the valve to integrally form the airtight container. The means for sealing the lead-in wire to the valve or stem may be crush type sealing (pinch seal, button stem, etc.) or fine sealing.
【００３２】また、管球としては、蛍光ランプ、紫外線
放射ランプや希ガス発光ランプなどの放電ランプあるい
は電球など広い範囲のものに適用できるものである。ま
た、蛍光ランプなどの放電ランプの場合は金属板、金属
棒や金属塊からなる冷陰極やフィラメントが電極とな
り、電球の場合はフィラメントが電極と呼び変えられ
る。Further, the bulb can be applied to a wide range of things such as a discharge lamp such as a fluorescent lamp, an ultraviolet radiation lamp and a rare gas light emitting lamp or an electric bulb. Further, in the case of a discharge lamp such as a fluorescent lamp, a cold cathode or a filament made of a metal plate, a metal rod or a metal block serves as an electrode, and in the case of a light bulb, the filament is referred to as an electrode.
【００３３】また、外部導入線が接続される対象はホル
ダや口金の端子部材あるいは各種機器の給電用端子部材
があり、接続手段は溶接、半田などのろう付け、ねじな
どによる圧着により行うことができる。The object to which the external lead-in wire is connected is a terminal member of a holder or a base or a power supply terminal member of various devices, and the connecting means may be welding, brazing of solder or the like, or crimping with a screw or the like. it can.
【００３４】さらに、導入線の各線材は管球の構造、目
的、形式、定格、負荷、用途、価格などに応じて適宜選
択して決めればよい。Further, each wire of the lead-in wire may be appropriately selected and determined according to the structure, purpose, type, rating, load, application, price of the tube.
【００３５】[0035]
【発明の実施の形態】以下、本発明の実施の形態を図１
および図２を参照して説明する。図１（ａ）、（ｂ）は
それぞれ別構成の導入線の一部縦断正面図、図２は液晶
表示装置のバックライトに用いられる直管形蛍光ランプ
の一部切欠正面図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
The description will be made with reference to FIG. 1 (a) and 1 (b) are partially cutaway front views of lead wires having different configurations, and FIG. 2 is a partially cutaway front view of a straight tube fluorescent lamp used for a backlight of a liquid crystal display device.
【００３６】図１（ａ）において、１Ａは導入線で、中
央のジュメット線（軟質ガラスに対応）やコバール線
（硬質ガラスに対応）からなる封着線２の一端側にはニ
ッケルＮｉやニッケルメッキ金属線などの内部導入線３
となる内部導体が、また、他端側には外部導入線４が接
続して構成されている。In FIG. 1 (a), 1A is a lead-in wire, and nickel Ni or nickel is provided on one end side of a sealing wire 2 composed of a Dumet wire (corresponding to soft glass) and a Kovar wire (corresponding to hard glass) in the center. Internal lead-in wire 3 such as plated metal wire
And an external lead-in wire 4 is connected to the other end side.
【００３７】たとえば、上記封着線２は、硬質ガラスと
封止されるニッケルＮｉ約２８重量％−コバルトＣｏ約
１７重量％−鉄Ｆｅ残部の合金からなるコバール線で、
直径約０．５ｍｍ、長さ約２ｍｍ、熱膨脹率（３０〜４
００℃）が４５〜５１×１０ -7 ／℃ -1 のものからな
る。For example, the sealing wire 2 is made of hard glass.
Sealed nickel Ni about 28 wt% -Cobalt Co about
17% by weight-a Kovar wire made of an alloy of iron-Fe balance,
Diameter about 0.5mm, length about 2mm, coefficient of thermal expansion (30-4
00 ° C) is 45 to 51 × 10 -7/ ° C-1From things
It
【００３８】また、内部導入線３は、直径約０．７ｍ
ｍ、長さ約７ｍｍのニッケルＮｉ線やニッケルメッキ金
属線などからなる。The internal lead-in wire 3 has a diameter of about 0.7 m.
m, a nickel Ni wire or a nickel-plated metal wire having a length of about 7 mm.
【００３９】また、外部導入線４は、鉄Ｆｅ約５８重量
％−ニッケルＮｉ約４２重量％の合金からなる芯線４Ａ
の周囲外側表面に層厚さが約３μｍの銅被覆層４Ｂを形
成した直径約０．４ｍｍ、長さ約２０ｍｍのものからな
る。The external lead-in wire 4 is a core wire 4A made of an alloy of about 58% by weight of iron Fe and about 42% by weight of nickel Ni.
A copper clad layer 4B having a layer thickness of about 3 μm is formed on the outer surface of the periphery of, and has a diameter of about 0.4 mm and a length of about 20 mm.
【００４０】この外部導入線４部分は、外径を所定寸法
に仕上げた芯線４Ａの外側表面に所定層厚の銅Ｃｕをめ
っきしたり、あるいは所定寸法より大径の芯線４Ａに銅
Ｃｕスリーブを被せ圧延することによって所定径と層厚
さの銅被覆層４Ｂを得ることができる。In this external lead-in wire 4, the outer surface of the core wire 4A whose outer diameter is finished to a predetermined dimension is plated with copper Cu having a predetermined layer thickness, or the core wire 4A having a diameter larger than the predetermined dimension is provided with a copper Cu sleeve. By covering and rolling, the copper coating layer 4B having a predetermined diameter and layer thickness can be obtained.
【００４１】そして、上記導入線１Ａの製造は、封着線
２の一端面に内部導入線３の端面を、また、他端面に外
部導入線４の端面を突き合せ、溶接電流を流して接続を
行うことができる。また、最終工程で水素雰囲気におい
て還元され製品となる。In order to manufacture the above-mentioned lead-in wire 1A, one end face of the sealing wire 2 is brought into contact with the end face of the inner lead-in wire 3 and the other end face is brought into contact with the end face of the external lead-in wire 4, and a welding current is passed to connect them. It can be performed. Further, in the final step, the product is reduced in a hydrogen atmosphere.
【００４２】また、図１（ｂ）は、図１（ａ）において
封着線２の一端側に内部導体として内部導入線３に変え
てニッケルＮｉ製のスリーブからなる外径約１．０ｍ
ｍ、内径約０．８ｍｍ、長さ約３ｍｍの放電ランプ用の
ホロー電極５を突き合せ溶接して形成した導入線１Ｂで
ある。Further, FIG. 1B shows an outer diameter of about 1.0 m made of a nickel Ni sleeve in place of the internal lead-in wire 3 as an internal conductor on one end side of the sealing wire 2 in FIG. 1A.
It is a lead-in wire 1B formed by butt-welding a hollow electrode 5 for a discharge lamp having a diameter of m, an inner diameter of about 0.8 mm and a length of about 3 mm.
【００４３】そして、上記導入線１Ａまたは１Ｂは図２
に示すバックライト用蛍光ランプＬの透光性気密容器を
形成するガラス管バルブ６の両端部に封止られる。図２
において、バルブ６は外径が約２ｍｍ、内径が約１．８
ｍｍ、全長が約４０ｍｍのホウケイ酸ガラスなどの硬質
ガラスからなり、たとえば上記導入線１Ｂの電極５，
５，の先端を対向させた状態で両端部に配置し、封着線
２部を加熱溶融して気密に封止した封止部６１，６１を
有する。The introduction line 1A or 1B is shown in FIG.
It is sealed at both ends of the glass tube bulb 6 forming the light-transmitting airtight container of the fluorescent lamp L for backlight shown in FIG. Figure 2
In, the valve 6 has an outer diameter of about 2 mm and an inner diameter of about 1.8.
mm, a hard glass such as borosilicate glass having a total length of about 40 mm.
There are sealing parts 61, 61 which are arranged at both ends in a state where the tips of the parts 5 and 5 are opposed to each other, and 2 parts of the sealing wire are heated and melted to hermetically seal.
【００４４】また、このバルブ６の内面には蛍光体膜７
が形成されているとともに内部にアルゴンＡｒなどの希
ガスと必要に応じて水銀が封入してある。Further, a phosphor film 7 is formed on the inner surface of the bulb 6.
Is formed, and a rare gas such as argon Ar and mercury are enclosed therein if necessary.
【００４５】そして、バルブ６端部の封止部６１，６１
から延出した外部導入線４が、たとえばバックライト装
置の光源として直接に装置の給電端子部材と接続するよ
う、あるいはホルダや口金構造に合せ所定形状に整形さ
れ、必要に応じホルダや口金が取着されて蛍光ランプＬ
を完成する。The sealing portions 61, 61 at the ends of the valve 6 are
The external lead-in wire 4 extending from the device is shaped, for example, as a light source of a backlight device so as to be directly connected to a power supply terminal member of the device, or shaped into a predetermined shape according to the structure of the holder and the cap, and the holder and the cap are removed as necessary. Wearing a fluorescent lamp L
To complete.
【００４６】この蛍光ランプＬは、両端の外部導入線
４，４が給電端子部材に接続され、点灯回路装置（図示
しない。）を介し給電するとそれぞれの外部導入線４−
封着線２を経て両電極５，５に電圧が印加され、電極
５，５間に放電が生起して、ランプＬが発光する。そし
て、この蛍光ランプＬは、従来構造のランプと同様な発
光特性を呈することができる。In this fluorescent lamp L, external lead-in wires 4 and 4 at both ends are connected to a power supply terminal member, and when power is fed through a lighting circuit device (not shown), each external lead-in wire 4-.
A voltage is applied to both electrodes 5 and 5 through the sealing wire 2, a discharge occurs between the electrodes 5 and 5, and the lamp L emits light. The fluorescent lamp L can exhibit the same light emitting characteristics as the conventional lamp.
【００４７】本発明の導入線１は、外部導入線４の芯線
４Ａに被覆した銅被覆層４Ｂの層厚さを約３μｍと従来
の１３〜１５％程度の薄さとし銅の使用量を少なくした
ので、コバール線からなる封着線２との溶接時に最も融
点の低い銅の溶融量が減った結果、溶接部の周囲に発生
するスプラッシュ（はね）が低減できた。In the lead-in wire 1 of the present invention, the thickness of the copper coating layer 4B covering the core wire 4A of the external lead-in wire 4 is about 3 μm, which is about 13 to 15% of the conventional thickness, and the amount of copper used is reduced. Therefore, as a result of the decrease in the melting amount of copper having the lowest melting point during welding with the sealing wire 2 made of Kovar wire, the splash (splash) generated around the welded portion could be reduced.
【００４８】このスプラッシュ（はね）の低減により、
ランプ製造装置においてばりによる導入線１，…相互が
引っ掛かることによるからみがなくなり、円滑な導入線
１，…の供給ができるので、ランプ製造の歩留りの向上
がはかれる。By reducing the splash,
In the lamp manufacturing apparatus, there is no entanglement due to the burrs catching each other on the introduction lines 1, ..., and the introduction lines 1, ... Can be smoothly supplied, so that the yield of lamp production can be improved.
【００４９】また、この種導入線１において、材料的に
高価である銅の使用量を低減できることは導入線１のコ
ストを下げることができる。（なお、この導入線１の１
本当りの銅使用量は僅かであるが、何百万本となれば大
きな量となる。）
また、この導入線１の外部導入線４の銅被覆層４Ｂの層
厚さを約３μｍとしたが、この程度の層厚さであっても
良好な導電性を呈し、給電端子部材などの他の部材との
間でもって接触不良とはならず良好な接続が行え、確実
な電気的接続がなされた。Further, in the seed lead wire 1, the amount of copper, which is expensive in terms of material, can be reduced, so that the cost of the lead wire 1 can be reduced. (In addition, 1 of this introduction line 1
The amount of copper used per wire is small, but if it reaches millions, it will be a large amount. Although the thickness of the copper coating layer 4B of the external lead-in wire 4 of the lead-in wire 1 is set to about 3 μm, good conductivity is exhibited even with such a layer thickness, and the power supply terminal member, etc. A good connection was made without contact failure with other members, and reliable electrical connection was made.
【００５０】本発明者等の実験によれば、上記外部導入
線４に被覆された銅被覆層４Ｂの層厚さは１〜５μｍの
範囲内であればよく、層厚さが１μｍ未満であると導入
線１とガラスとの封止作業の際の加熱で大気中にある銅
被覆層４Ｂに酸化を生じることがあったり電気的接触が
低下する虞があり、また、５μｍを超えると銅の使用量
が多くコスト低減への寄与が少なくなり好ましくない。According to experiments conducted by the present inventors, the copper coating layer 4B coated on the external lead-in wire 4 may have a layer thickness in the range of 1 to 5 μm, and the layer thickness is less than 1 μm. There is a possibility that the copper coating layer 4B in the atmosphere may be oxidized by heating during the sealing work between the lead wire 1 and the glass, and electrical contact may be deteriorated. It is not preferable because the amount used is large and the contribution to cost reduction is small.
【００５１】さらに、導入線１とガラスとの封止作業時
に外部導入線４の温度がさらに高まるものでは、外部導
入線４の銅被覆層４Ｂの表面に、さらに、水分のない硼
砂Ｎａ2 Ｂ4 Ｏ7 の薄膜層８、いわゆるボレーション処
理層を施しておいてもよい。Further, if the temperature of the external introducing wire 4 is further increased during the work of sealing the introducing wire 1 and the glass, the surface of the copper coating layer 4B of the external introducing wire 4 is further hydrated with borax Na 2 B without moisture. A thin film layer 8 of 4 O 7 , a so-called boration layer may be provided.
【００５２】すなわち、銅被覆層４Ｂの外側表面の硼砂
Ｎａ2 Ｂ4 Ｏ7 の薄膜層８は、封止作業時など加熱の
際、外部導入線４表面の銅被覆層４Ｂの酸化速度を鈍ら
せ過度の酸化を防ぐことができる。That is, the thin film layer 8 of borax Na 2 B 4 O 7 on the outer surface of the copper coating layer 4B slows the oxidation rate of the copper coating layer 4B on the surface of the external lead-in wire 4 during heating such as sealing operation. Excessive oxidation can be prevented.
【００５３】この硼砂Ｎａ2 Ｂ4 Ｏ7 は電気的には絶縁
物であるが、薄膜層８の層厚が約０．１〜０．２μｍ程
度の極めて薄いものであり、外部導入線４と給電端子部
材などとの接続の際に電気的に障害があれば被接続部分
の薄膜層８を剥離したり、温度上昇の低い先端側には初
めから薄膜層８を形成しておかないようにしておいても
よい。また、この硼砂Ｎａ2 Ｂ4 Ｏ7 の薄膜層８は、酸
化物被膜に比べて剥離が容易で、剥離後に腐蝕などを生
じる虞も少ない。This borax Na 2 B 4 O 7 is an electrically insulating material, but the thin film layer 8 is extremely thin with a thickness of about 0.1 to 0.2 μm. If there is an electrical failure when connecting to a power supply terminal member, etc., peel off the thin film layer 8 in the connected portion, and do not form the thin film layer 8 from the beginning on the tip side where the temperature rise is low. You may keep it. Further, the thin film layer 8 of borax Na 2 B 4 O 7 can be peeled off easily as compared with the oxide film, and there is less risk of corrosion or the like after peeling.
【００５４】なお、軟質ガラス対応の封着線部にジュメ
ット線が用いられる導入線では、封着線への硼砂Ｎａ2
Ｂ4 Ｏ7 の被膜を形成する際に外部導入線の表面にも同
時にボレーション処理を行うようにしてもよい。Incidentally, in the case of a lead wire in which a Dumet wire is used for the sealing wire portion corresponding to soft glass, borax Na 2 to the sealing wire is used.
When the B 4 O 7 coating film is formed, the surface of the external lead-in wire may be subjected to the boration treatment at the same time.
【００５５】そして、上記蛍光ランプＬは、従来構造の
ランプと同様な発光特性を呈するとともに、外部導入線
４の芯線を鉄Ｆｅ−ニッケルＮｉの合金としたことによ
り鉄Ｆｅ単独の材料より剛性が高く給電端子部材に接続
するため整形した後、外部導入線４が何等かの原因で他
の部材に少々の力で接触しても元の形に戻り接続不良の
発生を低減できる。The fluorescent lamp L exhibits the same light emission characteristics as the conventional structure, and the core wire of the external lead-in wire 4 is made of an iron Fe-nickel Ni alloy, so that the fluorescent lamp L has a rigidity higher than that of iron iron alone. Even if the external lead-in wire 4 comes into contact with another member with a small force for some reason after being shaped to be connected to the power supply terminal member at a high level, the original shape is restored and the occurrence of connection failure can be reduced.
【００５６】なお、本発明は上記実施の形態に限るもの
ではなく、たとえば、導入線の各部材は管球の構造、目
的、形式、定格、負荷、用途、価格などに応じて適宜選
択して決めればよい。The present invention is not limited to the above-mentioned embodiment. For example, each member of the lead-in wire is appropriately selected according to the structure, purpose, type, rating, load, use, price of the tube. Just decide.
【００５７】また、導入線が封止される気密容器はガラ
スからなるバルブやステムであって、１個の容器に封止
される本数は１本に限らず複数本であってもよい。The airtight container for sealing the introduction line is a valve or stem made of glass, and the number of containers sealed in one container is not limited to one but may be plural.
【００５８】また、管球としては、蛍光ランプ、紫外線
放射ランプや希ガス発光ランプなどの放電ランプあるい
は電球などひろい範囲のものに適用できるものであり、
ホルダや口金の有無は問わない。The bulb can be applied to a wide range of discharge lamps such as fluorescent lamps, ultraviolet radiation lamps and rare gas light emitting lamps, and light bulbs.
It does not matter whether there is a holder or a base.
【００５９】[0059]
【発明の効果】請求項１の発明によれば、鉄合金を用い
剛性を高めて変形を低減するとともに芯線に被覆した銅
被覆層の層厚さを薄くし銅の使用量を少なくして溶接部
に発生するスプラッシュ（はね）を防止した、品質と管
球製造の歩留りの向上およびコストの低減がはかれるな
ど種々の利点を有する外部導入線を備えた導入線を提供
できる。According to the first aspect of the present invention, welding is performed by using an iron alloy to increase rigidity and reduce deformation and reduce the thickness of the copper coating layer coated on the core wire to reduce the amount of copper used. It is possible to provide a lead wire provided with an external lead wire which has various advantages such as preventing splash (splash) generated in a portion, improving quality and yield of tube manufacturing, and reducing cost.
【００６０】請求項２の発明によれば、酸化の虞がある
外部導入線をボレーション処理しておくことにより上記
請求項１に記載したと同様の効果を奏する。According to the second aspect of the invention, the same effect as described in the first aspect can be obtained by performing the volatilization treatment on the externally introduced wire which is likely to be oxidized.
【００６１】請求項３の発明によれば、内部導体部と封
着線部とを一本の導入線で共用できる場合は、材料数お
よび溶接数を減らしコストの低減がはかれた導入線を提
供できる。According to the third aspect of the present invention, when the inner conductor portion and the sealing wire portion can be shared by one lead wire, the lead wire can be manufactured by reducing the number of materials and the number of welds to reduce the cost. Can be provided.
【００６２】請求項４の発明によれば、対応するガラス
材質や価格などに応じ芯線用材料を各種鉄合金から選ぶ
ことによって、上記請求項１ないし３の効果を奏する。According to the invention of claim 4, the core wire material is selected from various iron alloys according to the corresponding glass material, price, etc., and the effects of claims 1 to 3 are achieved.
【００６３】請求項５の発明によれば、上記請求項１な
いし４に記載の効果を奏する導入線を用いたので、管球
製造時の歩留り向上およびコストの低減がはかれた管球
を提供できる。According to the invention of claim 5, since the introduction line having the effects of the above-mentioned claims 1 to 4 is used, there is provided a tube having an improved yield and a reduced cost in manufacturing the tube. it can.
【図１】 図（ａ）、（ｂ）は、それぞれ本発明の実施
の形態の導入線の一部を縦断して示す正面図である。1A and 1B are front views each showing a part of a lead-in wire according to an embodiment of the present invention in a longitudinal section.
【図２】 本発明の実施の形態の液晶表示装置のバック
ライトに用いられる直管形蛍光ランプを示す一部切欠正
面図である。FIG. 2 is a partially cutaway front view showing a straight tube fluorescent lamp used for the backlight of the liquid crystal display device according to the embodiment of the present invention.
Ｌ：管球（蛍光ランプ）、１Ａ，１Ｂ：導入線、２：封
着線、３：内部導体（内部導入線）、４：外部導入線、
４Ａ：芯線、４Ｂ：銅被覆層、５：電極、６：透光性気
密容器（ガラスバルブ）、８：ボレーション処理（層）L: tube (fluorescent lamp), 1A, 1B: lead-in wire, 2: sealing wire, 3: internal conductor (internal lead-in wire), 4: external lead-in wire,
4A: core wire, 4B: copper coating layer, 5: electrode, 6: translucent airtight container (glass bulb), 8: boration treatment (layer)
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 5C035 GG07 GG09 5C043 AA07 AA13 AA14 AA15 CC08 DD17 EA11 EA13 EA16 EB11 EC02 5C235 GG07 GG09 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 5C035 GG07 GG09 5C043 AA07 AA13 AA14 AA15 CC08 DD17 EA11 EA13 EA16 EB11 EC02 5C235 GG07 GG09
Claims (5)
れた内部導体と；上記封着線の他端部に溶接された、鉄
成分を主体とする芯線の表面に層厚さが１〜５μｍの銅
被覆層を形成した外部導入線と；を備えたことを特徴と
する管球用導入線。1. A sealing wire; an internal conductor welded to one end of the sealing wire; a layer thickness on the surface of a core wire mainly composed of an iron component, welded to the other end of the sealing wire. An external introduction line having a copper coating layer having a size of 1 to 5 μm;
れた内部導体と；上記封着線の他端部に溶接された、鉄
成分を主体とする芯線の表面に層厚さが１〜５μｍの銅
被覆層を形成するとともに銅被覆層の外側をボレーショ
ン処理した外部導入線と；を備えたことを特徴とする管
球用導入線。2. A sealing wire; an internal conductor welded to one end of the sealing wire; a layer thickness on the surface of a core wire mainly composed of an iron component, welded to the other end of the sealing wire. An external introduction line formed by forming a copper coating layer having a size of 1 to 5 μm and boring the outside of the copper coating layer;
ことを特徴とする請求項１または２記載の管球用導入
線。3. The lead-in wire for a tube according to claim 1, wherein the sealing wire and the inner conductor are a single wire.
金、Ｆｅ−Ｎｉ−Ｃｒ合金、Ｆｅ−Ｎｉ−Ｃｏ合金、Ｆ
ｅ−Ｍｏ−Ｃｏ−Ｓｉ合金、Ｆｅ−Ｃｏ合金から選ばれ
たものであることを特徴とする請求項１ないし３いずれ
か一記載の管球用導入線。4. The core wire of the externally introduced wire is a Fe—Ni alloy, a Fe—Ni—Cr alloy, a Fe—Ni—Co alloy, or an F alloy.
The tube lead-in wire according to any one of claims 1 to 3, which is selected from an e-Mo-Co-Si alloy and an Fe-Co alloy.
封着線部分が封着された上記請求項１ないし４のいずれ
か一記載の管球用導入線と；上記容器内の内部導体部に
接続された電極と；を具備していることを特徴とする管
球。5. A translucent airtight container; a tube lead-in wire according to any one of claims 1 to 4, wherein a sealing wire portion is sealed in a sealing portion of the container; And an electrode connected to the inner conductor part of the tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001375417A JP2003178668A (en) | 2001-12-10 | 2001-12-10 | Lead-in wire for vessel and vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001375417A JP2003178668A (en) | 2001-12-10 | 2001-12-10 | Lead-in wire for vessel and vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003178668A true JP2003178668A (en) | 2003-06-27 |
Family
ID=19183798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001375417A Pending JP2003178668A (en) | 2001-12-10 | 2001-12-10 | Lead-in wire for vessel and vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003178668A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006140129A (en) * | 2004-10-13 | 2006-06-01 | Toshiba Lighting & Technology Corp | Electrode member, lead wire for sealing, and cold cathode fluorescent lamp |
| JP2008509529A (en) * | 2004-08-04 | 2008-03-27 | フェデラル−モーグル コーポレイション | Barium silica glass lamp with thermally balanced lead wires |
| KR100966312B1 (en) | 2003-09-03 | 2010-06-28 | 니폰 츠나바이토 가부시키가이샤 | Lamp for fish-luring and fish-luring lamp device |
| JP2015185419A (en) * | 2014-03-25 | 2015-10-22 | 東芝ライテック株式会社 | Incandescent lamp |
-
2001
- 2001-12-10 JP JP2001375417A patent/JP2003178668A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100966312B1 (en) | 2003-09-03 | 2010-06-28 | 니폰 츠나바이토 가부시키가이샤 | Lamp for fish-luring and fish-luring lamp device |
| JP2008509529A (en) * | 2004-08-04 | 2008-03-27 | フェデラル−モーグル コーポレイション | Barium silica glass lamp with thermally balanced lead wires |
| JP2006140129A (en) * | 2004-10-13 | 2006-06-01 | Toshiba Lighting & Technology Corp | Electrode member, lead wire for sealing, and cold cathode fluorescent lamp |
| JP2015185419A (en) * | 2014-03-25 | 2015-10-22 | 東芝ライテック株式会社 | Incandescent lamp |
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