JPS59175539A - Manufacture of fluorescent lamp - Google Patents

Abstract

PURPOSE:To reduce the sealing processes by glass first and eliminate fixing by sealing line by integrating a stem disk and spacer in one body and providing an independent small stem. CONSTITUTION:The U-shaped internal bulbs 3, 3' are inserted into the hole on the stem 13 integrating the stem disk and spacer in one body and fixed therein by bonding. A cap 17 is then fixed by bonding only to the one of two opened regions 6' and a tunnel part 7' is formed. A small stem 18 previously provided with an electrode 9 and an exhaust bulb 11 are set into the inserting holes 15, 16 of integrated stem 13, followed by application of glass frit 12 and sealing process. Thereby, a lamp can be manufactured by a single glass frit sealing process, a problem of leak from the sealing line sealing part can be solved by the small size stem and reliability of lamp on the leak can be enhanced.

Description

【発明の詳細な説明】 （技術分野） 本発明は、外管とヌデムによシ形成された放電空間内に
内管を収納し、該内管を放電路とするコンパクトサイズ
のけい光ランプの製造方法に関する。Detailed Description of the Invention (Technical Field) The present invention relates to a compact fluorescent lamp in which an inner tube is housed in a discharge space formed by an outer tube and a tube, and the inner tube serves as a discharge path. Regarding the manufacturing method.

（背景技術〉 近年の省エネルギ化の背景に於いて、光源分野では、高
効率、長寿命という大きな利点をもつけい光ランプの原
理を利用して、低効率、短寿命という致命的な欠点をも
つ白熱電球に代替しうるコンパクトな構造のけい光ラン
プの検討が活発に行なわれている。(Background technology) Against the backdrop of recent energy conservation, in the field of light sources, we have taken advantage of the principles of optical lamps, which have the great advantages of high efficiency and long life, and have overcome the fatal disadvantages of low efficiency and short life. A compact fluorescent lamp that can replace incandescent light bulbs is being actively studied.

このような動向において、本願出願人は、外管とボタン
ステムとで形成される気密空間内に、放電路限定用の複
数本の屈曲内管をヌペーサを介して直列構成し、該内管
の互いの連絡部の内１ケ所のみを上記気密空間に対して
開放すると共に、他の連絡部及び電極が位置する開口端
部を上記気密空間に対して気密的に隔設し、該気密空間
内に放電用ガスを封入したことを特徴とするけい光ラン
プを提案した。In line with this trend, the applicant of the present application constructed a plurality of bent inner tubes for limiting the discharge path in series via a nupacer in an airtight space formed by an outer tube and a button stem, and Only one of the mutual communication parts is open to the airtight space, and the other communication part and the open end where the electrode is located are airtightly separated from the airtight space, and the airtight space is We proposed a fluorescent lamp characterized by a discharge gas filled in the lamp.

第１図及び第２図は上記けい光ランプの一例を示すもの
で、図中１は外管、２はボタンステム、８．８′はＵ字
状に屈曲した内管、４はヌベーサ、５はけい光体、６は
開放部、７はトンネル部、８は内管８，３′をスペーサ
４に固定するだめの接着剤、９ｔＩｉ電極、１０はヌベ
ーサ固定用封入線で先端ヲ曲ケることによりスペーサ４
をボタンステム２上に気密的に位置決め固定する。１１
は排気管である。Figures 1 and 2 show an example of the above-mentioned fluorescent lamp. In the figures, 1 is an outer tube, 2 is a button stem, 8.8' is an inner tube bent into a U-shape, 4 is Nubesa, and 5 is a button stem. phosphor, 6 is an open part, 7 is a tunnel part, 8 is an adhesive for fixing the inner tube 8, 3' to the spacer 4, 9tIi electrode, 10 is an encapsulated wire for fixing the Nubesa and its tip can be bent. Possibly spacer 4
is airtightly positioned and fixed on the button stem 2. 11
is the exhaust pipe.

カカルケい光ランプは、ポタンヌデム２とスペーサ４け
必ずしも気密封着を必要とせず単に載せるだけで１本の
放電路が形成でき、それ故に製造の容易性を実現してい
るものである。The Kakarukei light lamp does not necessarily require hermetic sealing of the potnudem 2 and the spacer 4, and can form a single discharge path simply by placing them thereon, thus realizing ease of manufacture.

しかしながら、第２図よシ明らかなように、前記ランプ
は、気密空間を形成するだめに、円板状のヌテム２と各
封入線１０及び排気管１１の気密封着並びに外管１とボ
タンヌテム２の気密封着にガラスフリット臣を用いてい
る。そのだめ、ガラスフリットによる気密封着工程は都
合２回行なわなければならず、作業時間が非常に長くな
る欠点があった。また、電極９やスペーサ４を取付ける
ことを目的に、ガラスフリット封着後に封入線１０の曲
げ加工を行うために封着部に無理な力が加わシ、封入線
１０が不安定になったり、最悪の場合ガラスフリットと
封入線１０の接合部にリークが生じ、このリークによる
ランプ不点灯不良率は、約８％にも達していた。However, as is clear from FIG. 2, in order to form an airtight space, the lamp has a disc-shaped nut 2, each of the encapsulating wires 10, and an exhaust pipe 11 hermetically sealed, and the outer tube 1 and the button nut 2. Glass frit is used for airtight sealing. Unfortunately, the hermetic sealing process using the glass frit must be performed twice in total, resulting in a disadvantage that the working time is extremely long. Furthermore, in order to attach the electrode 9 and the spacer 4, the encapsulating wire 10 is bent after glass frit sealing, which may cause undue force to be applied to the sealed portion, which may cause the encapsulating wire 10 to become unstable. In the worst case, leakage occurred at the joint between the glass frit and the encapsulating wire 10, and the failure rate of the lamp due to this leakage reached about 8%.

（発明の目的） 本発明は上記問題点を改善するだめになされたもので、
その目的とするところは、ガラヌフリ。(Object of the invention) The present invention has been made to improve the above problems.
Its purpose is Garanufuri.

トによる気密封着工程を少なくすると共に、封入線によ
る固定をなくしたけい光ランプの製会方法を提供するに
ある。To provide a method for manufacturing a fluorescent lamp, which reduces the number of hermetic sealing steps using wires and eliminates the need for fixing using an encapsulating wire.

（発明の開示） 前述のランプが２回のガラスフリット封着を必要とする
理由は、 ■　スペーサを固定する封入線は予めヌテム円板に封着
固定されている必要がある。(Disclosure of the Invention) The reason why the above-mentioned lamp requires glass frit sealing twice is as follows: (1) The sealing wire for fixing the spacer must be sealed and fixed to the Nutem disk in advance.

■　電極を取付ける封入線は予めヌデム円板に封着固定
されている必要がある。■ The encapsulated wire to which the electrode is attached must be sealed and fixed to the Nudem disk in advance.

■　ヌデム円板−封入線、排気管封着時とボタンヌデム
ー外管封着時のガラスフリットの塗布。■ Application of glass frit when sealing the Nudemu disk-enclosed wire and exhaust pipe and the outer tube of the Button Nudemu.

という８点であシ、かかるランプ製法上の制約を除去す
べく構造検討を重ねだ結果、上記■、■についてはスデ
ム円板とスペーサを一体化構造とすることにより解決で
き、まだ上記■、■に関しては封入線の２次加工による
リーク発生の懸念があったが、■についてはヌデム円板
−スペーサ一体化によシスペーサ固定用封入線は必要と
なくなシリークの問題は自動的に解決し、■に関しては
電極部をユニ、トとして扱うという発想を取入れ、つせ
シ、電極を予め独立した小ステムに取付けた後ガラスフ
リット到着を行うという方法により解決することができ
だ。However, as a result of repeated structural studies in order to remove the constraints on the lamp manufacturing method, we were able to solve the above problems (■) and (2) by making the Sudem disk and the spacer into an integrated structure. Regarding ■, there was a concern about leakage occurring due to secondary processing of the encapsulation wire, but regarding ■, the problem of leakage was automatically solved as the encapsulation wire for fixing the system spacer was not required by integrating the Nudem disk and spacer. , ■ can be solved by adopting the idea of treating the electrode part as a unit, and by attaching the electrode to an independent small stem in advance, and then arriving at the glass frit.

以下に図面を参照して本発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.

第８図に於いて［３はヌデム円板とスペーサｆ　一体化
したもの（以下一体型ヌテムと称する）の展開図であっ
て、６つのＵ字管挿入穴１４．２つの後述する小ステム
１８を挿入する挿入孔１５、排気管１１を挿入する挿入
孔１６及び２つの開放部６′を有する。In FIG. 8, 3 is a developed view of a Nudem disc and a spacer f integrated (hereinafter referred to as an integrated Nudem), with six U-shaped tube insertion holes 14, two small stems 18, which will be described later. It has an insertion hole 15 into which the exhaust pipe 11 is inserted, an insertion hole 16 into which the exhaust pipe 11 is inserted, and two openings 6'.

一体型ス１ム１３の周縁はテーパ状に加工されている。The peripheral edge of the integrated slim 13 is processed into a tapered shape.

かかる構成のランプの組立てはまず、けい光体５を塗布
、焼成したＵ字状内管（材質はソーダ石灰ガラス）　８
　、８’を一体型ヌテム（材質はフオルステライト）［
３上の所定の挿入穴１４に接着固定する。To assemble a lamp with such a configuration, first, a U-shaped inner tube (made of soda lime glass) is coated with a phosphor 5 and fired.
, 8' is made of integrated nutem (material is forsterite) [
3 and fixed in a predetermined insertion hole 14 with adhesive.

次に２つの開放部６′のうち１ケ所のみにギヤー７プ（
材質はフォルステライト）１７を接着固定しトンネル部
７′を形成させる。このキャップ１７を付加することに
より両電極間で唯一の放電系路をとることが可能となシ
、正常な放電を行うことができる。接着固定には加熱硬
化型の耐熱性無機接着剤（材料は住友化学スミセラムＳ
−１ｏＢ−８）８を用いた。Next, gear 7 (
The material is forsterite) 17 is adhesively fixed to form a tunnel portion 7'. By adding this cap 17, it is possible to establish a unique discharge path between both electrodes, and normal discharge can be performed. For adhesive fixation, heat-curing heat-resistant inorganic adhesive (material: Sumitomo Chemical Sumiceram S)
-1oB-8)8 was used.

而して、組立ての完了したランプ内部ユニットを、第４
図に示すように外管（材質はソーダ石灰ガラス）１′に
セットする。外管１′の開口端は一体型ヌテムＩ３周縁
のテーパに対応してブローイング成型きれている。次に
、予め電極９を取付けた小ステム（材質は鉛ガラス）１
８及び排気管（材質は鉛ガラス）　１１を一体型ヌテム
ロの所定の挿入孔■５、１６にセットする。各部品のセ
ットが完了すれば、第４図に示すような倒立状態でガラ
スフリット（材料は日本電気硝子社製８６４１２）　１
２を塗布し、所定の温度プロフィールで焼成、封着を行
なう。最後に封着の完了したランプに通常の排気ガス封
入を行ない、第５図に示すように本ランプは完成する。Then, the completed lamp internal unit is placed in the fourth
As shown in the figure, set it in the outer tube (made of soda lime glass) 1'. The open end of the outer tube 1' is finished by blow molding to correspond to the taper of the peripheral edge of the integral Nutem I3. Next, a small stem (made of lead glass) 1 with an electrode 9 attached in advance
8 and the exhaust pipe (made of lead glass) 11 are set in the predetermined insertion holes 5 and 16 of the integrated Nutemuro. Once each part has been set, place the glass frit (material is 86412 manufactured by Nippon Electric Glass Co., Ltd.) 1 in an inverted position as shown in Figure 4.
2 is applied, baked and sealed at a predetermined temperature profile. Finally, the sealed lamp is filled with normal exhaust gas, and the lamp is completed as shown in FIG.

なお、上述のランプ部品の材質及び材料は一例であって
このものだけに限定されるものではない。Note that the above-mentioned materials and materials for the lamp components are merely examples, and are not limited to these.

（発明の効果う ■　従来２回のガラスフリット封着工程を必要とした製
造方法に対し、ヌデム円板とヌベー号を一体化構造とし
たことにより、１回のガラスフリット封着てランプを製
造できるようになり、その分の時間、約１００分が短縮
され生産性が向上した。(Effects of the invention) Compared to the conventional manufacturing method that required two glass frit sealing processes, by integrating the Nudem disk and Nuvei, it is now possible to manufacture a lamp by sealing the glass frit in one process. This reduced the amount of time required by approximately 100 minutes and improved productivity.

■　一体型ヌデムによシヌベーサ固定用封入線が省略で
きたことと、小ステムによシ封入線封着後の２次加工を
行う必要がなくなったために封入線封着部からのリーク
の問題が解決され、ランプのリークに対する信頼性が飛
躍的に向上した。■ The integrated Nudem eliminates the need for an encapsulation wire for fixing the Sinubesa, and the small stem eliminates the need for secondary processing after sealing the encapsulation line, which eliminates the problem of leakage from the encapsulation line sealing part. This problem has been solved and reliability against lamp leaks has been dramatically improved.

■　従来の構成では、７ペーサが若干でも浮き上がった
場合正規の放電路をとらないいわゆる短絡放電を生じる
危険性があったが、一体型ヌテムでは根本的にそのよう
な現象はない。■ In the conventional configuration, if the 7-pacer were to float even slightly, there was a risk of causing a so-called short-circuit discharge in which the normal discharge path was not taken, but with the integrated Nutem, there is fundamentally no such phenomenon.

なお、一体型ヌデムの周縁と外管の開口端との接合部を
テーパ状に構成すれば、一体型ヌテムと外管の位置決め
に何らの治具も必要とせず、製造上極めて都合がよいと
いう付加的効果もある。Furthermore, if the joint between the peripheral edge of the integrated Nudem and the open end of the outer tube is configured in a tapered shape, no jig is required for positioning the integrated Nudem and the outer tube, which is extremely convenient for manufacturing. There are also additional effects.

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

第１図は従来例の斜視図、第２図は同上の放電路に沿っ
て展開した断面図、第８図は本発明に係る内管とヌテム
の組立てを示す断面図、第４図は本発明に係るランプの
組立てを示す断面図、第５図は本発明に係る放電路に沿
って展開した断面図である。 特許出願人 松下電工株式会社 代理人弁理士　　竹　元　敏　丸 （ほか２名〕 第１図 第２図 第３図 手　続−？ｃｒｉ？　正置（自発補正）昭用５９年　３
月２９日 特許庁長官　殿 １、事件の表示 ８％口５８年　特許側　第０４９３５’３号２、発明の
名称 けい光ランプの製造方法 ３、補正をする者 事件との関係　　特許出願人 住　所　　　　　大阪ノ打門真市大字門真１０４８番地
名　称（５８３）松下電工株式会社 代表者　　　　　　小　　　林　　　　　　郁４、代理
人 住　　所　　　　　大阪府門真市大字門真１０４８番地
違う。」と補正する。 （２）明細書の第７頁第２行目のｒｓ６４１２ＪをｒＬ
ｓ６４１２Ｊと補正する。Fig. 1 is a perspective view of the conventional example, Fig. 2 is a cross-sectional view developed along the same discharge path, Fig. 8 is a cross-sectional view showing the assembly of the inner tube and Nutem according to the present invention, and Fig. 4 is the present invention. FIG. 5 is a sectional view showing the assembly of the lamp according to the invention, and FIG. 5 is a sectional view developed along the discharge path according to the invention. Patent Applicant Matsushita Electric Works Co., Ltd. Representative Patent Attorney Toshimaru Takemoto (and 2 others) Figure 1 Figure 2 Figure 3 Procedure -?cri? Orthoposition (voluntary amendment) 1977 3
May 29th, Commissioner of the Patent Office, Mr. 1, Indication of the case: 8%, 58 years, Patent side No. 04935'3, 2, Name of the invention, Process for manufacturing fluorescent lamps 3, Person making the amendment, Relationship with the case, Address of patent applicant. 1048 Oaza Kadoma, Kadoma City, Osaka Name (583) Matsushita Electric Works Co., Ltd. Representative: Iku Kobayashi 4, Agent address: 1048 Oaza Kadoma, Kadoma City, Osaka Prefecture. ” he corrected. (2) rs6412J on page 7, line 2 of the specification is rL
Correct as s6412J.

Claims (1)

【特許請求の範囲】[Claims] （１）１対の小ヌテム挿入孔と排気管挿入孔と複数対の
内管抑大穴とを有する一体型ステムの上記内管挿込穴に
屈曲内管の両開口端を押入すると共に接着固定した後、
予め電極を取着せる１対の小メテムを上記両車ステム挿
入孔に、排気管を排気管挿入孔にそれぞれ挿入すると共
に、上記一体型メテムの周縁と外管の開口端を接合せし
め、上記各挿入孔部及び接合部をガラス７リツトで気密
封着し、しかる後一体型ヌテムと外管とで形成される気
密空間内を真空排気して成るけい光ランプの製造方法。(1) Both open ends of the bent inner tube are pushed into the inner tube insertion hole of the integrated stem, which has a pair of small Nutem insertion holes, an exhaust pipe insertion hole, and multiple pairs of inner tube suppression holes, and are fixed with adhesive. After that,
A pair of small metems with electrodes attached in advance are inserted into the stem insertion holes of both vehicles, and an exhaust pipe is inserted into the exhaust pipe insertion holes, and the periphery of the integrated metem and the open end of the outer tube are joined to each other. A method for manufacturing a fluorescent lamp, in which the insertion hole and the joint are hermetically sealed with a glass tube, and then the airtight space formed by the integrated Nutem and the outer tube is evacuated.