JPS6362062B2 - - Google Patents
Info
- Publication number
- JPS6362062B2 JPS6362062B2 JP462282A JP462282A JPS6362062B2 JP S6362062 B2 JPS6362062 B2 JP S6362062B2 JP 462282 A JP462282 A JP 462282A JP 462282 A JP462282 A JP 462282A JP S6362062 B2 JPS6362062 B2 JP S6362062B2
- Authority
- JP
- Japan
- Prior art keywords
- glass tube
- stem
- frit
- distance
- 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
- 239000011521 glass Substances 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H01J61/361—Seals between parts of vessel
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
【発明の詳細な説明】
この発明はガラス管の端部にステムをフリツト
によつて固着し、内部を気密空間とした放電灯に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a discharge lamp in which a stem is fixed to the end of a glass tube with a frit, and the interior thereof is an airtight space.
この種放電灯の代表例として、第１図に示すよ
うな内部に放電路を規制する内筒を設けた片口金
型の螢光ランプがある。即ち、図において、１は
内面に光拡散層２を形成した一端部１１が開口の
ガラス管、３はこのガラス管１の端部１１に、端
部１１の開口を塞ぐようにフリツト４によつて固
着された、例えばクロム―鉄合金のようなガラス
管１の膨張係数に近い膨張係数を有する金属板製
のステム、５はこのステム３に封着された２個の
電極、６はこの電極５の一方を一端が内包し上記
ステム３に気密態様に固着され、他端を開放し内
面に螢光体層６６を形成したガラス製の内筒、そ
してこの内筒６は電極５間に生起される放電を内
筒６の開放端を経由したＵ形に規制する。７は上
記ガラス管１の端部１１に固着されたケース体で
あつて、内部に安定器、スタータ等の電気部品
（いずれも図示せず）を収納するとともに、先端
にその電気部品に電気的に接続され白熱電球用ソ
ケツトに直接ねじ込むことが可能な口金８を有し
ている。 A representative example of this type of discharge lamp is a single-end type fluorescent lamp having an inner tube for regulating a discharge path, as shown in FIG. That is, in the figure, 1 is a glass tube with a light diffusing layer 2 formed on the inner surface and an open end 11, and 3 is a glass tube 1 with a frit 4 attached to the end 11 of the glass tube 1 so as to close the opening of the end 11. A stem made of a metal plate, such as a chromium-iron alloy, having an expansion coefficient close to that of the glass tube 1, 5 is two electrodes sealed to this stem 3, and 6 is this electrode. 5, one end thereof is fixed to the stem 3 in an airtight manner, the other end is open, and a phosphor layer 66 is formed on the inner surface, and this inner cylinder 6 is formed between the electrodes 5. The discharge is regulated in a U-shape via the open end of the inner cylinder 6. Reference numeral 7 denotes a case body fixed to the end portion 11 of the glass tube 1, which houses electrical parts such as a ballast and a starter (none of which are shown), and has an electrical connection to the electrical parts at the tip. It has a base 8 which is connected to the lamp and can be directly screwed into an incandescent lamp socket.
しかるに、上記のように構成された螢光ランプ
においては、第２図のようにガラス管１とステム
３との固着は、ステム３面の、ガラス管１端部１
１の端面１２が当接する箇所に予めフリツト４を
塗着させておき、そのフリツト４上にガラス管１
端面１２を当接させ、加熱し、固着させたもので
ある。つまりガラス管１端面１２とステム３面と
の間に介在されるフリツト４によつて、ガラス管
１とステム３の両者の物理的固定を図るととも
に、ガラス管１内部の気密を維持している。その
ため、螢光ランプ等のガラス管１は通常１mm以下
の薄い肉厚で形成されているため、ガラス管１の
端面１２が良好な平滑面に仕上げられていない
と、フリツト４がガラス管１とステム３との間に
均一に介在されなくなる不都合が生じ、固着強度
が弱くなり、熱応力等が加わるとフリツト４の剥
離を招き気密を確実に維持できなくなる欠点があ
つた。 However, in the fluorescent lamp constructed as described above, as shown in FIG.
A frit 4 is applied in advance to the area where the end surface 12 of the glass tube 1 contacts, and the glass tube 1 is placed on the frit 4.
The end surfaces 12 are brought into contact with each other, heated, and fixed. In other words, by the frit 4 interposed between the end surface 12 of the glass tube 1 and the surface of the stem 3, both the glass tube 1 and the stem 3 are physically fixed, and the airtightness inside the glass tube 1 is maintained. . Therefore, since the glass tube 1 of a fluorescent lamp or the like is usually formed with a thin wall thickness of 1 mm or less, if the end surface 12 of the glass tube 1 is not finished with a good smooth surface, the frit 4 may There was a problem that the frit 4 was not evenly interposed between the frit 3 and the stem 3, the adhesion strength was weakened, and when thermal stress etc. were applied, the frit 4 would peel off, making it impossible to maintain airtightness reliably.
この発明は上記欠点に鑑みてなされたもので、
金属板製ステムの周縁とガラス管とを気密に固着
したものにおいて、ステム周縁に鉤状したガラス
管受部を設け、ガラス管端面からの距離がフリツ
ト面までよりステム基面までの方が大となるよう
にし、ガラス管とステムとの固着強度の向上が図
れ、フリツトの剥離を抑え気密を長時間に亘り確
実に維持できる放電灯を提供することを目的とす
る。 This invention was made in view of the above drawbacks.
In a case where the periphery of a metal plate stem and a glass tube are airtightly fixed, a hook-shaped glass tube holder is provided on the periphery of the stem, and the distance from the glass tube end face is greater to the stem base than to the frit surface. To provide a discharge lamp which can improve the adhesion strength between a glass tube and a stem, suppress peeling of a frit, and reliably maintain airtightness over a long period of time.
以下この発明を第３図に基づき説明する。 This invention will be explained below based on FIG.
第３図はこの発明の放電灯の要部断面図であ
る。図において、９はガラス管受部で、クロム11
〜14％、残部を鉄とした金属板製のステム３の周
縁部よりガラス管１の内径に対応して直角に折曲
され、先端部にＵ字状した曲成部９１を有する鉤
状を呈している。つまり、このガラス管受部９の
先端が自由端となる一方の側部９２の高さより、
ステム基面３１に連設される他方の側部９３の高
さが大となるように形成されている。そしてガラ
ス管受部９の曲成部９１に嵌装されたガラス管端
部１１の周囲にはフリツト４が充填されている。 FIG. 3 is a sectional view of essential parts of the discharge lamp of the present invention. In the figure, 9 is the glass tube holder, and chrome 11
~14%, the stem 3 is made of a metal plate with the remainder made of iron, and the stem 3 is bent at a right angle from the peripheral edge to correspond to the inner diameter of the glass tube 1, and has a hook shape with a U-shaped bent part 91 at the tip. It is showing. In other words, from the height of one side 92 where the tip of this glass tube holder 9 is the free end,
The other side portion 93 connected to the stem base surface 31 is formed to have a large height. The frit 4 is filled around the glass tube end portion 11 fitted into the bent portion 91 of the glass tube receiving portion 9.
この発明はかかる構成において、ガラス管端部
面１２からフリツト４の上面までの距離(h)より、
ガラス管端面１２からステム基面３１までの距離
(H)が大となるようにしたものである。なお図示以
外の他の部分は第１図と同様である。 In this invention, in such a configuration, from the distance (h) from the glass tube end surface 12 to the upper surface of the frit 4,
Distance from glass tube end surface 12 to stem base surface 31
(H) is made to be large. Note that other parts other than those shown are the same as those in FIG. 1.
このように構成させることにより、ガラス管端
面１２に加えてガラス管１の両側面部にもフリツ
ト４を介在させ得る。つまり、ガラス管１とフリ
ツト４との接触面積を増加させ得、しかもガラス
管１を封着した後のランプ製造工程における温度
変化によつて生ずる応力に対して、ステム３、ガ
ラス管１およびフリツト４が一体的に変形するた
め、ガラス管１とステム３に局部的な力が加わら
ず、さらにステム基面３１のガラス管受部９の側
部９３との連設部が、変形しようとする力を吸収
し緩衝するため、フリツト４の剥離が抑止され
る。したがつて封着部の気密性が損なわれること
は無くなる。しかしながら、ガラス管端面１２か
らフリツト４上面までの距離(h)とステム基面３１
までの距離(H)がｈ≧Ｈとなると、ステム３が変形
しようとする力がフリツト４を介して直接ガラス
管１に加わることになり、時としてガラス管１を
破壊させる問題が起る。 With this configuration, the frit 4 can be interposed not only on the end surface 12 of the glass tube but also on both side surfaces of the glass tube 1. In other words, the contact area between the glass tube 1 and the frit 4 can be increased, and the stem 3, the glass tube 1, and the frit can be protected against stress caused by temperature changes in the lamp manufacturing process after the glass tube 1 is sealed. 4 are deformed integrally, no local force is applied to the glass tube 1 and the stem 3, and furthermore, the portion of the stem base surface 31 connected to the side portion 93 of the glass tube receiving portion 9 tends to deform. Since the force is absorbed and buffered, peeling of the frit 4 is suppressed. Therefore, the airtightness of the sealed portion will not be impaired. However, the distance (h) from the glass tube end surface 12 to the top surface of the frit 4 and the stem base surface 31
When the distance (H) between the two ends is h≧H, the force that tends to deform the stem 3 is applied directly to the glass tube 1 via the frit 4, which sometimes causes the glass tube 1 to break.
なお、ガラス管受部９の曲成部９１の形状は、
上記実施例のようにＵ字形に限定されることはな
く、Ｖ字形あるいはリング状のものでも同等の効
果が期待できるものである。 The shape of the bent portion 91 of the glass tube holder 9 is as follows:
It is not limited to a U-shape as in the above embodiment, but a V-shape or a ring-shape can also be used to achieve the same effect.
なお、また上記実施例においては、ガラス管１
内に放電路を規制する内筒６を有する片口金型の
螢光ランプについて説明したが、内筒６以外の放
電路規制体を配設したもの、あるいは両口金型の
螢光ランプ、または螢光灯以外の他の放電灯等に
この発明を適用することは何ら妨げられない。 Furthermore, in the above embodiment, the glass tube 1
Although we have described a single-end type fluorescent lamp having an inner cylinder 6 for regulating the discharge path, it is also possible to use a double-end type fluorescent lamp with a discharge path regulator other than the inner cylinder 6, or a fluorescent lamp with a double-end type. There is nothing in the way of applying the present invention to discharge lamps other than light lamps.
以上説明したようにこの発明は、金属板製のス
テムをガラス管とをフリツトによつて気密に固着
したものにおいて、ステム周縁に鉤状したガラス
管受部を設け、ガラス管端面からの距離がフリツ
ト面よりステム基面までの距離が大となるように
したので、ガラス管とステムとの固着強度が向上
し、フリツトの剥離を抑えることができる。した
がつて、ガラス管内の気密を長時間に亘り確実に
維持できる効果を奏する。 As explained above, the present invention has a stem made of a metal plate and a glass tube that are airtightly fixed to each other by a frit. Since the distance from the frit surface to the stem base surface is longer than that, the adhesion strength between the glass tube and the stem is improved, and separation of the frit can be suppressed. Therefore, it is possible to reliably maintain airtightness within the glass tube for a long time.
第１図は従来の螢光ランプの一実施例を示す斜
視図、第２図は同じくガラス管とステムとの固着
態様を示す要部拡大断面図、第３図はこの発明の
一実施例を示す要部拡大断面図である。
図中、１はガラス管、３はステム、４はフリツ
ト、１１はガラス管端部、１２はガラス管端面、
９はガラス管受部、３１はステム基面、９１は曲
成部、９２，９３は側部、なお、各図中同一符号
は同一または相当部分を示す。
FIG. 1 is a perspective view showing an embodiment of a conventional fluorescent lamp, FIG. 2 is an enlarged sectional view of the main part showing how the glass tube and stem are fixed, and FIG. 3 is a perspective view showing an embodiment of the present invention. FIG. In the figure, 1 is a glass tube, 3 is a stem, 4 is a frit, 11 is a glass tube end, 12 is a glass tube end surface,
9 is a glass tube holder, 31 is a stem base, 91 is a curved portion, and 92 and 93 are side portions. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
受部を設け、このガラス管受部内にフリツトを充
填し、ステムとガラス管とを気密に固着したもの
において、ガラス管受部を鉤状とし、ガラス管端
面からフリツト面までの距離よりガラス管端面か
らステム基面までの距離が大となるようにしたこ
とを特徴とする放電灯。1 A glass tube holder is provided around the periphery of a stem formed of a metal plate, and the glass tube holder is filled with frit to secure the stem and the glass tube airtightly, and the glass tube holder is hook-shaped. A discharge lamp characterized in that the distance from the end face of the glass tube to the base of the stem is greater than the distance from the end face of the glass tube to the frit face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP462282A JPS58121543A (en) | 1982-01-14 | 1982-01-14 | Electric discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP462282A JPS58121543A (en) | 1982-01-14 | 1982-01-14 | Electric discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58121543A JPS58121543A (en) | 1983-07-19 |
| JPS6362062B2 true JPS6362062B2 (en) | 1988-12-01 |
Family
ID=11589147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP462282A Granted JPS58121543A (en) | 1982-01-14 | 1982-01-14 | Electric discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58121543A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63246127A (en) * | 1987-04-02 | 1988-10-13 | 松下電器産業株式会社 | Hose of electric cleaner |
| JPH043649U (en) * | 1990-04-26 | 1992-01-14 |
-
1982
- 1982-01-14 JP JP462282A patent/JPS58121543A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63246127A (en) * | 1987-04-02 | 1988-10-13 | 松下電器産業株式会社 | Hose of electric cleaner |
| JPH043649U (en) * | 1990-04-26 | 1992-01-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58121543A (en) | 1983-07-19 |
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