JPH0138342B2 - - Google Patents
Info
- Publication number
- JPH0138342B2 JPH0138342B2 JP6642081A JP6642081A JPH0138342B2 JP H0138342 B2 JPH0138342 B2 JP H0138342B2 JP 6642081 A JP6642081 A JP 6642081A JP 6642081 A JP6642081 A JP 6642081A JP H0138342 B2 JPH0138342 B2 JP H0138342B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- inner tube
- button stem
- sealed
- filament
- 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
- 238000007789 sealing Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 description 8
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 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
- 230000003287 optical effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/26—Sealing together parts of vessels
- H01J9/265—Sealing together parts of vessels specially adapted for gas-discharge tubes or lamps
- H01J9/266—Sealing together parts of vessels specially adapted for gas-discharge tubes or lamps specially adapted for gas-discharge lamps
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Description
【発明の詳細な説明】
本発明は、外管とボタンステムにより形成され
る放電空間内に、屈曲させた内管を収納した二重
管構造のコンパクトなけい光ランプの製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a compact fluorescent lamp having a double tube structure in which a bent inner tube is housed in a discharge space formed by an outer tube and a button stem.
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、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。 Against the background of energy conservation in recent years, in the field of light sources, we are using the principles of optical lamps, which have the great advantages of high efficiency and long life, to replace incandescent light bulbs, which have the fatal disadvantages of low efficiency and short life. Fluorescent lamps with a transparent and compact structure are being actively studied.
このような動向において、本願出願人は先に第
1図に示すような構成のコンパクトなけい光ラン
プを出願した。すなわち、外管1とボタンステム
2によつて気密に保たれる放電空間3内に、2本
のU字状内管4を収納したけい光ランプであつ
て、U字状内管4の内面にはけい光体5が塗付さ
れており、また、該内管4の一端は電極フイラメ
ント6の周囲に気密に固定され、他の開口端7を
利用して両電極6,6間で放電が行われる。な
お、図中8は点灯装置部、9はねじ口金である。 In line with this trend, the applicant of the present application previously filed an application for a compact fluorescent lamp having a configuration as shown in FIG. That is, it is a fluorescent lamp in which two U-shaped inner tubes 4 are housed in a discharge space 3 that is kept airtight by an outer tube 1 and a button stem 2, and the inner surface of the U-shaped inner tube 4 is A phosphor 5 is coated on the inner tube 4, and one end of the inner tube 4 is hermetically fixed around the electrode filament 6, and the other open end 7 is used to generate a discharge between the electrodes 6, 6. will be held. In addition, in the figure, 8 is a lighting device part, and 9 is a screw cap.
しかし、この種のけい光ランプの製造において
は次の如き問題点があつた。すなわち、一般に、
外管1とボタンステム2は、ガスバーナにて加熱
封着されるが、この封着時の熱負荷が極めて高い
ために、タングステンより成るフイラメント6が
著しく酸化し、完成したランプの特性に悪影響
(始動電圧、ランプ電圧の上昇及びランプ効率、
寿命の低下)を及ぼすという欠点があり、またか
かる欠点を改善するため、封着時にランプ内に
N2、Arなどの不活性ガスを導入する方法もある
が、製造コストの面から良策とは言えなかつた。 However, the following problems arose in the manufacture of this type of fluorescent lamp. That is, in general,
The outer tube 1 and the button stem 2 are heat-sealed using a gas burner, but because the heat load during this sealing is extremely high, the filament 6 made of tungsten is significantly oxidized, which adversely affects the characteristics of the completed lamp. Starting voltage, lamp voltage rise and lamp efficiency,
However, in order to improve this drawback, the inside of the lamp is sealed at the time of sealing.
There is a method of introducing an inert gas such as N 2 or Ar, but this cannot be said to be a good solution due to manufacturing costs.
本発明はかかる点に鑑みなされたもので、その
目的とするところは、フイラメントの酸化が防止
でき、しかも製造が容易なけい光ランプの製造方
法を提供するにある。 The present invention has been made in view of the above, and an object thereof is to provide a method for manufacturing a fluorescent lamp that can prevent filament oxidation and is easy to manufacture.
以下、本発明を第2図乃至第4図に示す実施例
に基づき説明する。図中10はガラス製の外管
で、11はガラス管をU字状に屈曲させた内管で
あつて、該内管11の内壁にはけい光体12が塗
付され焼成されている。13はセラミツク等の無
機材料から成るスペーサであつて、両端部に上記
内管11の開口端11aが嵌る外径のガイドリン
グ14を、中央部にピン挿入孔15を有し、ガイ
ドリング14の中心には後述の電極部が挿通可能
な挿通孔16があけられている。17は円盤状の
ボタンステムであつて、中心に排気管18を有
し、上記スペーサ13の電極部挿通孔16及びピ
ン挿入孔15に対応する位置に、それぞれ封着管
19及び固定ピン20が設けられている。21は
フイラメント22、ガラス片23、リード線24
から成る電極部で、フイラメント22は適当な電
子放射物質が塗付されたタングステンから成り、
ボタンステム17及び外管10と同材質のガラス
片23に封入固定されたリード線24に装着され
ている。ここで、封着管19の形成は、ボタンス
テム17の適所を周知の吹き破り法により吹き破
り、先端をカツトして形成するか、あるいはボタ
ンステム17の適所に孔を明け、該孔周縁にガラ
ス管を突き合わせて溶着することにより形成す
る。ボタンステム17の外面に突出形成された封
着管19の形状は円筒状であり、封着時の熱負荷
を小さくするために肉厚は比較的薄いことが好ま
しく、また、封着を容易にする(ボタンステム1
7への封着時の熱の影響を小さくする)ために、
ある程度の長さを必要とする。第5図に本実施例
の形状・寸法を示す。同図において封着管19の
内径dは6〜7mm、肉厚tは0.8〜1.5mm、長さl
は5〜10mmである。 The present invention will be explained below based on the embodiments shown in FIGS. 2 to 4. In the figure, numeral 10 is an outer tube made of glass, and numeral 11 is an inner tube made of a glass tube bent into a U-shape.The inner wall of the inner tube 11 is coated with a phosphor 12 and fired. Reference numeral 13 denotes a spacer made of an inorganic material such as ceramic, and has a guide ring 14 at both ends with an outer diameter into which the open end 11a of the inner tube 11 fits, and a pin insertion hole 15 in the center. An insertion hole 16 is provided in the center, into which an electrode portion to be described later can be inserted. Reference numeral 17 denotes a disc-shaped button stem, which has an exhaust pipe 18 in the center, and a sealed pipe 19 and a fixing pin 20 at positions corresponding to the electrode part insertion hole 16 and pin insertion hole 15 of the spacer 13, respectively. It is provided. 21 is a filament 22, a glass piece 23, and a lead wire 24
The filament 22 is made of tungsten coated with a suitable electron emitting material,
It is attached to a lead wire 24 sealed and fixed to a glass piece 23 made of the same material as the button stem 17 and the outer tube 10. Here, the sealed tube 19 can be formed by blowing off a suitable part of the button stem 17 using a well-known blow-off method and cutting off the tip, or by making a hole at a suitable position of the button stem 17 and forming a hole around the hole. It is formed by butting and welding glass tubes together. The shape of the sealing tube 19 protruding from the outer surface of the button stem 17 is cylindrical, and the wall thickness is preferably relatively thin in order to reduce the heat load during sealing. (button stem 1
In order to reduce the effect of heat during sealing to 7),
Requires a certain length. FIG. 5 shows the shape and dimensions of this example. In the figure, the sealed tube 19 has an inner diameter d of 6 to 7 mm, a wall thickness t of 0.8 to 1.5 mm, and a length l.
is 5 to 10 mm.
次に製造方法を説明する。先ず、それぞれの内
管11の一方の開口端11aをスペーサ13のガ
イドリング14に嵌め、加熱硬化型の耐熱性無機
接着剤Aを使用して接着し、バーナにて速やかに
接着剤Aを硬化させることにより、内管11をス
ペーサ13に固定する。そして、ボタンステム1
7に設けた固定ピン20をスペーサ13のピン挿
入孔15に挿入し、第3図に示すようにピン20
の先端を折り曲げることにより、内管11と一体
になつたスペーサ13をボタンステム17に固定
する。このときスペーサ13の電極部挿通孔16
とボタンステム17の封着管19とは合致させて
おく。次に、ボタンステム17と外管10をバー
ナにて封着する。この時点では酸化の懸念のある
電極部21は、まだ内管11内に挿入されていな
いので、封着の熱負荷は大でよい。しかる後、電
極部21を封着管19よりスペーサ13の挿通孔
16を通して内管11内に挿入し、封着管19と
ガラス片23をバーナにて加熱封着する。かかる
封着の熱負荷は、フイラメント22を酸化させな
い程度の小さなもので充分である。そして最後
に、封着の完了したランプ内を排気するために、
排気管18を排気系(図示せず)に接続してラン
プ内を真空に排気し、フイラメント22に塗付し
た電子放射物質の活性化処理を行ない、所定量の
水銀と不活性ガスを封入した後、排気管18をチ
ツプオフし、第4図に示すようなランプに完成さ
せる。 Next, the manufacturing method will be explained. First, one open end 11a of each inner tube 11 is fitted into the guide ring 14 of the spacer 13 and bonded using a heat-curable heat-resistant inorganic adhesive A, and the adhesive A is quickly cured with a burner. By doing so, the inner tube 11 is fixed to the spacer 13. And button stem 1
7 is inserted into the pin insertion hole 15 of the spacer 13, and the pin 20 is inserted as shown in FIG.
The spacer 13, which is integrated with the inner tube 11, is fixed to the button stem 17 by bending the tip of the button stem 17. At this time, the electrode part insertion hole 16 of the spacer 13
and the sealed tube 19 of the button stem 17 are made to match. Next, the button stem 17 and the outer tube 10 are sealed together using a burner. At this point, the electrode portion 21, which is susceptible to oxidation, has not yet been inserted into the inner tube 11, so the heat load for sealing may be large. Thereafter, the electrode part 21 is inserted into the inner tube 11 from the sealing tube 19 through the insertion hole 16 of the spacer 13, and the sealing tube 19 and the glass piece 23 are heat-sealed with a burner. It is sufficient that the heat load for such sealing is small enough to not oxidize the filament 22. Finally, in order to exhaust the inside of the lamp after sealing is completed,
The exhaust pipe 18 was connected to an exhaust system (not shown) to evacuate the inside of the lamp, the electron emitting material applied to the filament 22 was activated, and a predetermined amount of mercury and inert gas was sealed. After that, the exhaust pipe 18 is chipped off to complete the lamp as shown in FIG.
なお、第4図に示す矢印は放電路を示し、フイ
ラメント22→内管11→内管11の開口端→外
管10の空間→内管11の開口端→内管11→フ
イラメント22となる。 Note that the arrow shown in FIG. 4 indicates a discharge path, which is filament 22 → inner tube 11 → open end of inner tube 11 → space of outer tube 10 → open end of inner tube 11 → inner tube 11 → filament 22.
本発明は上記のように、極めて高い熱負荷で外
管10とボタンステム17を封着した後、フイラ
メント22を有する電極部21を内管11内に挿
入し、小さい熱負荷で封着するものであるため、
外管10とボタンステム17との封着は速やかに
行なえ、しかもフイラメントの酸化を防止でき安
定した性能を有するけい光ランプを提供できた。 As described above, the present invention seals the outer tube 10 and button stem 17 under an extremely high heat load, then inserts the electrode section 21 having the filament 22 into the inner tube 11 and seals them under a small heat load. Therefore,
The outer tube 10 and the button stem 17 can be quickly sealed together, and oxidation of the filament can be prevented, thereby providing a fluorescent lamp with stable performance.
なお、上記実施例のようにフイラメント22を
縦型に配置すれば、ランプ内への電極部21の挿
入が容易になると云つた付加的効果を有する。 It should be noted that if the filament 22 is arranged vertically as in the above embodiment, there is an additional effect that the electrode portion 21 can be easily inserted into the lamp.
第1図は従来のけい光ランプを示す斜視図、第
2図は本発明に係るけい光ランプの分解斜視図、
第3図は同上のランプの放電路に従う展開断面
図、第4図は同上のランプの斜視図、第5図は同
上の封着管の形状・寸法を示す断面図である。
FIG. 1 is a perspective view showing a conventional fluorescent lamp, FIG. 2 is an exploded perspective view of a fluorescent lamp according to the present invention,
FIG. 3 is a developed cross-sectional view of the lamp according to the discharge path, FIG. 4 is a perspective view of the lamp, and FIG. 5 is a cross-sectional view showing the shape and dimensions of the sealed tube.
Claims (1)
間内に屈曲せる内管を収納し、該内管を放電路と
する二重管構造のけい光ランプの製造において、
上記外管ボタンステムとを加熱封着した後、フイ
ラメントを有する電極部を、予めボタンステムの
外面に突出形成した薄肉円筒状の封着管より内管
内に挿入し、該封着管を加熱封着したことを特徴
とするけい光ランプの製造方法。1. In manufacturing a fluorescent lamp with a double tube structure in which a bendable inner tube is housed in a discharge space formed by an outer tube and a button stem, and the inner tube serves as a discharge path,
After heat-sealing the outer tube and the button stem, the electrode portion having the filament is inserted into the inner tube through a thin-walled cylindrical sealed tube formed in advance to protrude from the outer surface of the button stem, and the sealed tube is heat-sealed. A method for manufacturing a fluorescent lamp characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6642081A JPS57180849A (en) | 1981-04-30 | 1981-04-30 | Manufacture of fluorescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6642081A JPS57180849A (en) | 1981-04-30 | 1981-04-30 | Manufacture of fluorescent lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57180849A JPS57180849A (en) | 1982-11-08 |
JPH0138342B2 true JPH0138342B2 (en) | 1989-08-14 |
Family
ID=13315278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6642081A Granted JPS57180849A (en) | 1981-04-30 | 1981-04-30 | Manufacture of fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57180849A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100416738C (en) * | 2003-08-08 | 2008-09-03 | 福州协特来照明有限公司 | Method for manufacturing shielded needle core column |
-
1981
- 1981-04-30 JP JP6642081A patent/JPS57180849A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57180849A (en) | 1982-11-08 |
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