JPH05290817A - Halogen bulb and manufacture of the same - Google Patents

Halogen bulb and manufacture of the same

Info

Publication number
JPH05290817A
JPH05290817A JP4084027A JP8402792A JPH05290817A JP H05290817 A JPH05290817 A JP H05290817A JP 4084027 A JP4084027 A JP 4084027A JP 8402792 A JP8402792 A JP 8402792A JP H05290817 A JPH05290817 A JP H05290817A
Authority
JP
Japan
Prior art keywords
bulb
sealing portion
opening angle
glass bulb
halogen
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
Application number
JP4084027A
Other languages
Japanese (ja)
Inventor
Mikio Matsuda
松田幹男
Tsutomu Watanabe
渡辺力
Yoji Yuge
弓削洋二
Kenji Sakai
坂井健次
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Lighting and Technology Corp
Original Assignee
Toshiba Lighting and Technology Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Lighting and Technology Corp filed Critical Toshiba Lighting and Technology Corp
Priority to JP4084027A priority Critical patent/JPH05290817A/en
Publication of JPH05290817A publication Critical patent/JPH05290817A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Abstract

PURPOSE:To prevent a crack from being generated in the upper portion of a sealing portion by determining an opening angle of the upper portion of the sealing portion based on the gas pressure within a range enough to maintain efficiency of a halogen bulb. CONSTITUTION:A stem is housed inside a cylindrical quartz glass bulb 6 having an exhaust tube 5 formed on the top thereof. The end of the bulb 6 is heated and melted by a burner, to be sealed by a pincher, thus obtaining a sealing portion 6a. An upper opening angle of the sealing portion 6a is set to 90 deg. through 135 deg.. A distance (d) between the top point 6c of the sealing portion, which forms an opening angle (a), and the upper portion 3a of a molybdenum foil 3 is set to about 1mm or longer. A mold 9 is disposed around the bulb 6. Before the sealing portion 6a is solidified, air is exhausted from the exhaust tube 5 so that the inside of the bulb 6 becomes vacuum. Inactive gas and halogen gas are enclosed at 60 through 135kg/cm<2> into the bulb 6.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の目的】[Object of the Invention]

【0002】[0002]

【産業上の利用分野】本発明は、球状バルブを有するハ
ロゲン電球及びその製造方法に係わり、特にこの電球の
封止部構造ないし製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a halogen bulb having a spherical bulb and a method for manufacturing the same, and more particularly to a structure or a method for manufacturing a sealing portion of the bulb.

【0003】[0003]

【従来の技術】従来、この種のハロゲン電球ないしこの
製造方法を第4図に示し説明する。
2. Description of the Related Art Heretofore, this type of halogen bulb and its manufacturing method will be described with reference to FIG.

【0004】まず、フィラメント(1)の両端が張架さ
れた一対の内部導入線(2),(2)の他端にモリブデ
ン箔(3),(3)がそれぞれ溶接されている。さら
に、このモリブデン箔(3),(3)の他端にはコ字状
に形成された外部導入線(4)が上記と同様に溶接にて
接続されて、いわゆるステム(s)を構成している。
First, molybdenum foils (3) and (3) are welded to the other ends of a pair of internal lead-in wires (2) and (2) in which both ends of a filament (1) are stretched. Further, the other ends of the molybdenum foils (3) and (3) are connected to the external lead-in wire (4) formed in a U shape by welding in the same manner as above to form a so-called stem (s). ing.

【0005】このステム(s)を排気管(5)が頂部に
形成された円筒状の石英ガラスバルブ(6)の内部に配
置し、バーナ(7)で上記バルブ(6)の端部を加熱し
て溶融させ、ピンチャー(8)で封止して封止部(6
a)を形成する。
This stem (s) is placed inside a cylindrical quartz glass bulb (6) having an exhaust pipe (5) formed at the top, and a burner (7) heats the end of the bulb (6). Then, it is melted and sealed with a pincher (8) to seal the sealing part (6
a) is formed.

【0006】この後、上記排気管(5)によりバルブ
(6)内部を真空にし、アルゴン等の不活性ガス及びハ
ロゲンガスを封入してこの排気管(5)を封止切りす
る。さらに、コ字状の外部導入線(4)の一部を切り落
とし、2本の外部導入線(4),(4)を形成してハロ
ゲン電球が製造される。
After that, the inside of the valve (6) is evacuated by the exhaust pipe (5), an inert gas such as argon and a halogen gas are filled, and the exhaust pipe (5) is sealed off. Further, a part of the U-shaped external lead-in wire (4) is cut off to form two external lead-in wires (4), (4) to manufacture a halogen bulb.

【0007】[0007]

【発明が解決しようとする課題】この製造方法と同様な
方法にて球状の石英ガラスバルブを使用すると、バルブ
内に封入されるアルゴン等の不活性ガス及びハロゲンガ
スのガス圧が高いためなどにより、封止部(6)の上側
(6b)の内部導入線(2),(2)付近からクラック
が発生することが多い。
When a spherical quartz glass bulb is used in the same manner as this manufacturing method, the gas pressure of the inert gas such as argon and the halogen gas filled in the bulb is high, and the like. In many cases, cracks are generated near the internal introduction lines (2) and (2) on the upper side (6b) of the sealing portion (6).

【0008】さらに調査した結果、モリブデン箔
(3),(3)の先端(3a),(3a)から上記封止
部(6)の上側(6b)までの距離ないし封止部(6)
の上側(6b)の開き角度(a)が密接に関係があるこ
とが分かってきた。
As a result of further investigation, the distance from the tips (3a), (3a) of the molybdenum foils (3), (3) to the upper side (6b) of the sealing portion (6) or the sealing portion (6).
It has been found that the opening angle (a) of the upper side (6b) of the is closely related.

【0009】本発明は上記事情に鑑みなされたものであ
り、上記封止部の上側のクラックを防止した球状バルブ
を有するハロゲン電球及びその製造方法を提供すること
を目的とする。
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a halogen bulb having a spherical bulb that prevents cracks on the upper side of the sealing portion and a method for manufacturing the same.

【0010】[0010]

【課題を解決するための手段】本願発明では、第一の発
明として、フィラメントが配置されたほぼ球状の石英ガ
ラスバルブと、このガラスバルブの一端に形成されたモ
リブデン箔を内蔵する封止部の上側の開き角度(a)が
90゜ないし135゜である開き角度と、上記封止部の
上側の開き角度の頂点と上記モリブデン箔の上端までの
距離(d)が1mm以上である距離と、上記ガラスバル
ブに封入されるガス圧が60ないし135(kg/cm
2)であるガス圧とを具備することを特徴とする。
According to a first aspect of the present invention, a substantially spherical quartz glass bulb in which a filament is arranged and a sealing portion containing a molybdenum foil formed at one end of the glass bulb are incorporated. An opening angle having an opening angle (a) of 90 ° to 135 ° on the upper side, and a distance (d) from the apex of the opening angle of the upper side of the sealing portion to the upper end of the molybdenum foil being 1 mm or more, The gas pressure enclosed in the glass bulb is 60 to 135 (kg / cm
2) which is a gas pressure.

【0011】また、第二の発明として、フィラメントを
張架した一対の内部導入線を外部導入線が接続されたモ
リブデン箔に接続してなるステムを組み立てる工程と、
このステムを排気管が接続された円筒状の石英ガラスバ
ルブの内部に配置する工程と、このガラスバルブを軟化
させて封止部を形成する工程と、このガラスバルブを軟
化させて球状バルブにモールドする工程と、このガラス
バルブ内部に上記封止部が固まらない前に封入ガスをガ
ス圧60ないし135(kg/cm2)で封入する工程
とを有することを特徴とする。
As a second invention, a step of assembling a stem formed by connecting a pair of internal lead wires in which filaments are stretched to a molybdenum foil to which external lead wires are connected,
The step of placing this stem inside a cylindrical quartz glass bulb to which an exhaust pipe is connected, the step of softening this glass bulb to form a sealing part, and the step of softening this glass bulb and molding it into a spherical bulb And a step of enclosing the enclosed gas at a gas pressure of 60 to 135 (kg / cm 2) before the sealing portion is solidified inside the glass bulb.

【0012】さらにまた、第三の発明として、第一の発
明においてハロゲン電球を構成している上記石英ガラス
バルブの肉厚は、約1mmであることを特徴とする。
Furthermore, as a third aspect of the present invention, in the first aspect of the present invention, the quartz glass bulb constituting the halogen bulb has a wall thickness of about 1 mm.

【0013】[0013]

【作用】第一の発明では、封止部の上側の開き角度と、
ガラスバルブに封入されるガス圧と、封止部の上側の開
き角度の頂点とモリブデン箔の上端までの距離をハロゲ
ン電球の効率を維持できる範囲で、ガス圧をベースに上
記開き角度を決定したので、実用範囲で封止部のクラッ
クの発生はない。
In the first invention, the opening angle of the upper side of the sealing portion,
The opening angle was determined based on the gas pressure in the glass bulb and the distance between the top of the opening angle of the sealing part and the top of the molybdenum foil within the range that can maintain the efficiency of the halogen bulb. Therefore, cracking of the sealing portion does not occur in the practical range.

【0014】また、第二の発明では、ガラスバルブ内部
にガスを封入するに際し、上記封止部が固まらない前に
封入ガスをガス圧60ないし135(kg/cm2)と
しているので、封止部の上側の開き角度を適宜制御する
ことができる。
Further, in the second invention, when the gas is sealed in the glass bulb, the gas pressure is 60 to 135 (kg / cm 2) before the sealing part is solidified. The opening angle on the upper side of the can be appropriately controlled.

【0015】また、第三の発明では、上記ガラスバルブ
の肉厚を約1mmにしているので、上記封止部の上側の
開き角度が制御しやすくなる。
Further, in the third invention, since the thickness of the glass bulb is about 1 mm, the opening angle of the upper side of the sealing portion can be easily controlled.

【0016】[0016]

【実施例】以下、本願発明の一実施例を第1図ないしを
第3図を参照して説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

【0017】まず、フィラメント(1)の両端が張架さ
れた一対の内部導入線(2),(2)の他端にモリブデ
ン箔(3),(3)がそれぞれ溶接されている。さらに
このモリブデン箔(3),(3)の他端にはコ字状に形
成された外部導入線(4)が上記と同様に溶接にて接続
されて、いわゆるステム(s)を構成している。
First, molybdenum foils (3) and (3) are welded to the other ends of the pair of internal lead-in wires (2) and (2) in which both ends of the filament (1) are stretched. Further, the other end of each of the molybdenum foils (3) and (3) is connected to the external lead-in wire (4) formed in a U shape by welding in the same manner as above to form a so-called stem (s). There is.

【0018】このステムを排気管(5)が頂部に形成さ
れた、円筒状で肉厚がほぼ1mmの石英ガラスバルブ
(6)の内部に配置し、バーナ(7)でこのバルブ
(6)の端部を加熱して溶融させ、ピンチャー(8)で
封止して、封止部(6a)を形成する。この封止部(6
a)の上側(6b)の開き角度(a)が鋭角である場合
にはクラックが発生しやすい。また、開き角度(a)を
形成する封止部の頂点(6c)とモリブデン箔(3)の
上部(3a)との距離(d)は約1mm以上がクラック
発生しにくい。
This stem is placed inside a cylindrical quartz glass bulb (6) having an exhaust pipe (5) formed at the top and having a wall thickness of approximately 1 mm, and a burner (7) is provided for this bulb (6). The end portion is heated and melted, and sealed with a pincher (8) to form a sealed portion (6a). This sealing part (6
When the opening angle (a) on the upper side (6b) of a) is an acute angle, cracks are likely to occur. Further, when the distance (d) between the apex (6c) of the sealing portion forming the opening angle (a) and the upper portion (3a) of the molybdenum foil (3) is about 1 mm or more, cracking is unlikely to occur.

【0019】この後、内面が球状のモールド(9)を上
記バルブ(6)外周に配置し、上記封止部(6a)が固
まらない前に、上記排気管(5)からバルブ(6)内部
を真空にし、アルゴン等の不活性ガス及びハロゲンガス
を60ないし135(kg/cm2)で封入し、この排
気管(5)を封止切りする。そして、コ字状の外部導入
線(4)の一部を切り落とし、2本の外部導入線
(4),(4)を形成して球状バルブを有するハロゲン
電球が製造される。
After that, a mold (9) having a spherical inner surface is arranged on the outer periphery of the valve (6), and before the sealing portion (6a) is solidified, the exhaust pipe (5) to the inside of the valve (6). Is evacuated, an inert gas such as argon and a halogen gas are sealed at 60 to 135 (kg / cm 2), and the exhaust pipe (5) is cut off. Then, a part of the U-shaped external introduction line (4) is cut off to form two external introduction lines (4) and (4) to manufacture a halogen bulb having a spherical bulb.

【0020】つぎに、上記封止部(6a)の上側(6
b)の開き角度(a)とバルブ(6)内部に封入するア
ルゴン等の不活性ガス及びハロゲンガスのガス圧との関
係によりクラックの発生限界を実験した(開き角度
(a)を形成する封止部の頂点(6c)とモリブデン箔
(3)の上部(3a)との距離(d)は約1mm)。
Next, above the sealing portion (6a) (6
The crack generation limit was tested by the relationship between the opening angle (a) in (b) and the gas pressure of an inert gas such as argon and a halogen gas sealed in the valve (6) (sealing forming the opening angle (a)). The distance (d) between the apex (6c) of the stop and the upper part (3a) of the molybdenum foil (3) is about 1 mm.

【0021】その結果を第3図に示す。これによると、
開き角度(a)が鋭角の場合には耐圧が約58(kg/
cm2)と低く、この電球の寿命が短くまた効率が低く
なることがわかった。また開き角度(a)が130゜を
越える形状のものは製造が困難である。
The results are shown in FIG. according to this,
When the opening angle (a) is an acute angle, the pressure resistance is approximately 58 (kg /
It was found that this bulb has a short life and efficiency. Also, it is difficult to manufacture a product having an opening angle (a) of more than 130 °.

【0022】したがって、バルブ(6)内部に封入する
不活性ガス及びハロゲンガスのガス圧が60(kg/c
m2)以上でかつ開き角度(a)が130゜以下の球状
のガラスバルブを有するハロゲン電球がクラックを生じ
ないものである。
Therefore, the gas pressure of the inert gas and the halogen gas sealed inside the valve (6) is 60 (kg / c).
A halogen light bulb having a spherical glass bulb having an opening angle (a) of m2) or more and an opening angle (a) of 130 ° or less does not crack.

【0023】[0023]

【発明の効果】本願の第一の発明の効果としては、封止
部の上側の開き角度と、ガラスバルブに封入されるガス
圧と、封止部の上側の開き角度の頂点とモリブデン箔の
上部までの距離をハロゲン電球の効率を維持できる範囲
で、ガス圧をベースに上記開き角度を決定したので、実
用範囲で封止部のクラックの発生はない。
As the effects of the first invention of the present application, the opening angle above the sealing portion, the gas pressure sealed in the glass bulb, the apex of the opening angle above the sealing portion and the molybdenum foil Since the opening angle is determined based on the gas pressure within the range where the efficiency of the halogen bulb can be maintained up to the distance to the upper portion, cracking of the sealing portion does not occur in the practical range.

【0024】また、第二の発明では、ガラスバルブ内部
にガスを封入するに際し、上記封止部が固まらない前に
封入ガスをガス圧60ないし135(kg/cm2)と
しているので、封止部の上側の開き角度を適宜制御する
ことができる。
In the second aspect of the invention, when the gas is sealed in the glass bulb, the gas pressure is 60 to 135 (kg / cm 2) before the sealing part is solidified. The opening angle on the upper side of the can be appropriately controlled.

【0025】また、第三の発明では、上記ガラスバルブ
の肉厚を約1mmにしているので、上記封止部の上側の
開き角度が制御しやすくなる。
Further, in the third invention, since the thickness of the glass bulb is about 1 mm, the opening angle of the upper side of the sealing portion can be easily controlled.

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

【図1】本発明の一実施例を示すハロゲン電球の縦断
面。
FIG. 1 is a vertical cross section of a halogen bulb according to an embodiment of the present invention.

【図2】本発明のハロゲン電球の製造方法を示し、
(イ)はモールド及びガラスバルブの縦断面。(ロ)は
封止部の成形後のハロゲン電球の縦断面。
FIG. 2 shows a method for manufacturing a halogen bulb of the present invention,
(A) is a vertical section of the mold and glass bulb. (B) is a vertical cross section of the halogen bulb after the molding of the sealing portion.

【図3】封止部の上側の開き角度とバルブ内部に封入す
るアルゴン等の不活性ガス及びハロゲンガスのガス圧と
の関係によりクラックの発生限界を実験したときの結果
を示す図。
FIG. 3 is a diagram showing the results of an experiment on the limit of crack generation based on the relationship between the opening angle on the upper side of the sealing portion and the gas pressures of an inert gas such as argon and a halogen gas sealed in the valve.

【図4】従来のハロゲン電球の製造方法を示し、(イ)
はステム及びガラスバルブの縦断面図、(ロ)は封止部
の成形前の工程を示すモールド及びガラスバルブの縦断
面、(ハ)は封止部の成形後の工程を示すモールド及び
ガラスバルブの縦断面、(ニ)は封止部の成形後のハロ
ゲン電球の縦断面。
FIG. 4 shows a conventional method for manufacturing a halogen bulb, (a)
Is a vertical cross-sectional view of the stem and the glass bulb, (b) is a vertical cross-section of the mold and the glass bulb showing the process before the molding of the sealing portion, and (c) is a mold and the glass bulb showing the process after the molding of the sealing portion. (D) is a vertical section of the halogen bulb after the molding of the sealing part.

【符号の説明】[Explanation of symbols]

1…フィラメント、2…内部導入線、3…モリブデン
箔、3a…上部、4…外部導入線、5…排気管、6…石
英ガラスバルブ、6a…封止部、6b…上側、6c…頂
点、7…バーナ、8…ピンチャー、9…モールド、a…
開き角度、d…開き角度を形成する封止部の頂点とモリ
ブデン箔の上部までの距離、s…ステム。
1 ... Filament, 2 ... Internal lead-in wire, 3 ... Molybdenum foil, 3a ... Upper part, 4 ... External lead-in wire, 5 ... Exhaust pipe, 6 ... Quartz glass bulb, 6a ... Sealing part, 6b ... Upper side, 6c ... Apex, 7 ... Burner, 8 ... Pincher, 9 ... Mold, a ...
Opening angle, d ... Distance between the apex of the sealing part forming the opening angle and the top of the molybdenum foil, s ... Stem.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 坂井健次 東京都港区三田1丁目4番28号 東芝ライ テック株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenji Sakai 1-4-2-4 Mita, Minato-ku, Tokyo Inside Toshiba Lighting & Technology Corporation

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】フィラメントが配置されたほぼ球状の石英
ガラスバルブと、 このガラスバルブの一端に形成されたモリブデン箔を内
蔵する封止部の上側の開き角度(a)が90゜ないし1
35゜である開き角度と、 上記封止部の上側の開き角度の頂点と上記モリブデン箔
の上端までの距離(d)が1mm以上である距離と、 上記ガラスバルブに封入されるガス圧が60ないし13
5(kg/cm2)であるガス圧と、を具備することを
特徴とするハロゲン電球。
1. A substantially spherical quartz glass bulb in which filaments are arranged, and an opening angle (a) on the upper side of a sealing portion containing a molybdenum foil formed at one end of the glass bulb is 90 ° to 1 °.
The opening angle is 35 °, the distance (d) from the top of the opening angle of the sealing portion to the upper end of the molybdenum foil is 1 mm or more, and the gas pressure sealed in the glass bulb is 60. Through 13
A halogen light bulb, comprising: a gas pressure of 5 (kg / cm2).
【請求項2】フィラメントを張架した一対の内部導入線
を外部導入線が接続されたモリブデン箔に接続してなる
ステムを組み立てる工程と、 このステムを排気管が接続された円筒状の石英ガラスバ
ルブの内部に配置する工程と、 このガラスバルブを軟化させて封止部を形成する工程
と、 このガラスバルブを軟化させて球状バルブにモールドす
る工程と、 このガラスバルブ内部に上記封止部が固まらない前に封
入ガスをガス圧60ないし135(kg/cm2)で封
入する工程と、を有することを特徴とするハロゲン電球
の製造方法。
2. A process of assembling a stem, which comprises connecting a pair of internal lead wires, each of which is formed by stretching a filament, to a molybdenum foil to which an external lead wire is connected, and a cylindrical quartz glass to which the exhaust pipe is connected. The step of arranging inside the bulb, the step of softening this glass bulb to form a sealing portion, the step of softening this glass bulb and molding it into a spherical bulb, and the above-mentioned sealing portion inside this glass bulb. A process for producing a halogen light bulb, comprising the step of enclosing an enclosed gas at a gas pressure of 60 to 135 (kg / cm2) before it solidifies.
【請求項3】上記石英ガラスバルブの肉厚は、約1mm
であることを特徴とする請求項第1項記載のハロゲン電
球。
3. The thickness of the quartz glass bulb is about 1 mm.
The halogen light bulb according to claim 1, wherein
JP4084027A 1992-04-06 1992-04-06 Halogen bulb and manufacture of the same Pending JPH05290817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4084027A JPH05290817A (en) 1992-04-06 1992-04-06 Halogen bulb and manufacture of the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4084027A JPH05290817A (en) 1992-04-06 1992-04-06 Halogen bulb and manufacture of the same

Publications (1)

Publication Number Publication Date
JPH05290817A true JPH05290817A (en) 1993-11-05

Family

ID=13819073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4084027A Pending JPH05290817A (en) 1992-04-06 1992-04-06 Halogen bulb and manufacture of the same

Country Status (1)

Country Link
JP (1) JPH05290817A (en)

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