JP3241706B2 - Bulb-type fluorescent lamp - Google Patents
Bulb-type fluorescent lampInfo
- Publication number
- JP3241706B2 JP3241706B2 JP2000116048A JP2000116048A JP3241706B2 JP 3241706 B2 JP3241706 B2 JP 3241706B2 JP 2000116048 A JP2000116048 A JP 2000116048A JP 2000116048 A JP2000116048 A JP 2000116048A JP 3241706 B2 JP3241706 B2 JP 3241706B2
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent lamp
- bulb
- adhesive
- valve
- fixing plate
- 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 - Lifetime
Links
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、蛍光ランプを接着
剤で接合する電球形蛍光ランプに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact fluorescent lamp in which fluorescent lamps are joined with an adhesive.
【従来の技術】Ｕ字形に屈曲された複数のガラスバルブ
を吹き破りなどによって形成された連通管によって接続
し、両端に電極を配置して構成された蛍光ランプを、円
皿状をなす樹脂製の固定板に充填塗布された接着剤を介
して接合、支持させた構造の電球形蛍光ランプが従来知
られている。2. Description of the Related Art A plurality of glass bulbs bent in a U-shape are connected by a communicating pipe formed by blowing or the like, and a fluorescent lamp constituted by arranging electrodes at both ends is made of a disc-shaped resin-made fluorescent lamp. 2. Description of the Related Art A bulb-type fluorescent lamp having a structure in which the fixing plate is joined and supported via an adhesive filled and applied to the fixing plate is conventionally known.
【０００２】固定板には、点灯回路装置が取付けられ、
さらに、カバー体や口金、必要に応じ透光性グローブが
被せられるものである。[0002] A lighting circuit device is mounted on the fixing plate.
Further, a cover body, a base, and a translucent glove can be put on as required.
【０００３】蛍光ランプを固定板に接合、支持する接着
剤としては弾力性を有するシリコーン系のものが多用さ
れている。このシリコーン系の接着剤は常温で硬化する
が、硬化に時間がかかり生産性が低下する問題があっ
た。そこで、これに代えて加熱硬化する縮合タイプのシ
リコーン系の接着剤や２液混合加熱硬化型のシリコーン
系の接着剤があるが、前者は高価であるため一般量産用
としては後者の接着剤が使用されている。As an adhesive for joining and supporting a fluorescent lamp to a fixing plate, an elastic silicone-based adhesive is often used. Although this silicone-based adhesive cures at room temperature, there is a problem that curing takes time and productivity is reduced. Therefore, instead of this, there is a condensation type silicone adhesive which cures by heating or a two-component heat curing type silicone adhesive. However, the latter is expensive and the latter is generally used for mass production. It is used.
【発明が解決しようとする課題】上記従来の電球形蛍光
ランプは、蛍光ランプが接着剤によって固定板に接合、
支持されるが、この接着剤の塗布充填状態によっては蛍
光ランプを構成する複数のガラスバルブ間に応力が加わ
り、好ましくない状態にあることが分かった。In the above-mentioned conventional bulb-type fluorescent lamp, the fluorescent lamp is bonded to a fixing plate by an adhesive.
Although supported, stress was applied between a plurality of glass bulbs constituting the fluorescent lamp depending on the state of application and filling of the adhesive, and it was found that this was in an undesirable state.
【０００４】図５は、従来の電球形蛍光ランプの接着剤
の塗布充填状態を示す断面図である。８１は円皿状をな
す樹脂製の固定板であり、挿通孔（図示しない。）が穿
孔されている。蛍光ランプはＵ字形に屈曲された３本の
ガラスバルブ１Ａ，１Ｂ，１Ｃから構成されており、こ
のガラスバルブ１Ａ，１Ｂ，１Ｃの各端部が固定板の挿
通孔から挿入されている。接着剤８２は、図５（ｄ），
（ｅ）に示すように複数のバルブ１Ａ，１Ｂ，１Ｃ間と
固定板８１との間の殆どの部分に塗布充填してあった
り、図５（ｆ）に示すように複数のバルブ１Ａ，１Ｂ，
１Ｃ間および中央部内に接着剤８２が塗布充填してあ
る。FIG. 5 is a cross-sectional view showing a state in which an adhesive is applied and filled in a conventional bulb-type fluorescent lamp. Reference numeral 81 denotes a disk-shaped resin fixing plate having an insertion hole (not shown). The fluorescent lamp is composed of three glass bulbs 1A, 1B, 1C bent in a U-shape, and each end of the glass bulbs 1A, 1B, 1C is inserted through an insertion hole of a fixed plate. The adhesive 82 is formed as shown in FIG.
Most portions between the plurality of valves 1A, 1B, 1C and the fixed plate 81 are coated and filled as shown in FIG. 5E, or the plurality of valves 1A, 1B are formed as shown in FIG. ,
An adhesive 82 is applied and filled between 1C and the central portion.
【０００５】すなわち、シリコーン系接着剤を用いて蛍
光ランプを固定板に接合する場合、熱風あるいは雰囲気
温度を１００〜２００℃にして接着剤を加熱し、硬化さ
れるが、この加熱によって膨脹した接着剤が冷却される
と接着剤が収縮するため、蛍光ランプを構成する複数の
ガラスバルブ同士を内側に押圧する応力が生じる。この
応力は、熱加工により残存歪みの多いガラスバルブの屈
曲部や連通管にまで及び、特に両端が他のバルブと連通
管を介して接続されている逃げの少ない中間のバルブの
屈曲部や連通管に応力が加わると、屈曲部には約１００
ｋｇｆ／ｃｍ2以上の応力が加わることがあり、この部
分に破壊を起こすことがあった。That is, when a fluorescent lamp is bonded to a fixing plate using a silicone-based adhesive, the adhesive is heated and cured by setting the temperature to 100 to 200 ° C. by hot air or the atmosphere. When the agent is cooled, the adhesive contracts, so that a stress is generated that presses the plurality of glass bulbs constituting the fluorescent lamp inward. This stress extends to the bent part and the communicating pipe of the glass bulb with much residual distortion due to thermal processing, and especially the bent part and the communicating part of the middle valve with little escape connected at both ends through the communicating pipe with other bulbs. When stress is applied to the tube, about 100
In some cases, a stress of kgf / cm 2 or more was applied, and this portion was sometimes broken.
【０００６】本発明は、上記問題点に鑑みなされたもの
であり、複数のバルブを接続して構成された蛍光ランプ
を接着剤によって固定板に接続しても、応力が発生しに
くく、ガラスバルブの破壊を抑制した電球形蛍光ランプ
を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems. Even when a fluorescent lamp formed by connecting a plurality of bulbs is connected to a fixing plate by an adhesive, stress is hardly generated, and a glass bulb is provided. It is an object of the present invention to provide a bulb-type fluorescent lamp in which destruction of the lamp is suppressed.
【課題を解決するための手段】請求項１の電球形蛍光ラ
ンプは、Ｕ字形に屈曲された複数本のバルブを有し、こ
のバルブの非屈曲側の各端部が円環状に配設されるよう
にバルブ同士が連通管によって接続されるとともに両端
に電極が配置された蛍光ランプと；この蛍光ランプのバ
ルブ各端部が挿通される挿通孔を備えた固定板と；この
固定板に挿通された蛍光ランプのバルブ各端部のうち隣
接する端部同士の間にバルブ端部全周には被着されない
状態で独立して充填されて蛍光ランプのバルブ端部と固
定板とを接合する接着剤と；この固定板に支持された点
灯回路と；点灯回路を覆って固定板に被せられたカバー
と；このカバーに取付けられた口金と；を具備している
ことを特徴とする。According to a first aspect of the present invention, there is provided a bulb-type fluorescent lamp having a plurality of bulbs bent in a U-shape, and each end of the bulb on a non-bending side is arranged in an annular shape. Lamp in which the bulbs are connected to each other by a communication pipe and electrodes are arranged at both ends, a fixing plate having an insertion hole through which each end of the bulb of the fluorescent lamp is inserted, and a fixing plate inserted through the fixing plate Is not attached to the entire periphery of the bulb end between adjacent ends of the bulbs of the fluorescent lamp.
An adhesive that is independently filled in a state and joins the bulb end of the fluorescent lamp and the fixing plate; a lighting circuit supported by the fixing plate; a cover that covers the lighting circuit and covers the fixing plate; And a base attached to the cover.
【０００７】請求項１の電球形蛍光ランプによれば、接
着剤の充填状態が最適化されているので、接着剤の収縮
に伴ってバルブを内側に収縮させるように加わる応力が
少なくなり、バルブの破壊を抑制することができる。According to the bulb-type fluorescent lamp of the first aspect, since the filling state of the adhesive is optimized, the stress applied to shrink the bulb inward with the contraction of the adhesive is reduced, and the bulb is reduced. Can be suppressed.
【０００８】請求項２は、請求項１記載の電球形蛍光ラ
ンプにおいて、接着剤と蛍光ランプのバルブ端部との接
触は、蛍光ランプのバルブ各端部がなす円環の内側に比
べて外側が多くなるように接着剤が充填されていること
を特徴とする。[0008] Claim 2 is the self-ballasted fluorescent lamp according to claim 1, contact between the valve end of the adhesive and fluorescent lamps, in comparison with the inside of the ring formed by the valve at each end of the fluorescent lamp outer Characterized by being filled with an adhesive so as to increase the
【０００９】請求項２の電球形蛍光ランプによれば、接
着剤が蛍光ランプのバルブ各端部がなす円環の内側に比
べて外側が多くなるように充填されているので、バルブ
を内側に収縮させるように加わる応力を一層少なくする
ことができる。According to the bulb-type fluorescent lamp of the second aspect, since the adhesive is filled so that the outside is larger than the inside of the ring formed by each end of the bulb of the fluorescent lamp, the bulb is placed inside. The stress applied to cause contraction can be further reduced.
【００１０】請求項３は、請求項１または２記載の電球
形蛍光ランプにおいて、接着剤は、加熱硬化形のシリコ
ーン接着剤であることを特徴とする。 請求項３の電球
形蛍光ランプによれば、接着剤をさほど時間をかけるこ
となく容易に硬化させることができ、生産性の低下を抑
制することができる。According to a third aspect of the present invention, in the bulb-type fluorescent lamp according to the first or second aspect, the adhesive is a heat-curable silicone adhesive. According to the bulb-type fluorescent lamp of the third aspect, the adhesive can be easily cured without taking much time, and a decrease in productivity can be suppressed.
【発明の実施の形態】以下、本発明の一実施形態を図１
ないし図４を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIG.
【００１１】図１ないし図４は本発明の電球形蛍光ラン
プの一実施形態を示し、図１（ａ）〜（ｅ）はＵ字形の
バルブ１をたとえば円環状に３本連通して配設した蛍光
ランプＬ２の製造過程の概略を順を追って示す説明図、
図２はこの蛍光ランプＬ２の正面図、図３はこの蛍光ラ
ンプＬ２の発光管の一端部を示し、図４（ａ）〜（ｃ）
は断面図である。FIGS. 1 to 4 show an embodiment of a bulb-type fluorescent lamp according to the present invention. FIGS. 1A to 1E show three U-shaped bulbs 1, for example, which are connected in an annular shape. Explanatory drawing which shows the outline of the manufacturing process of the fluorescent lamp L2 in order.
FIG. 2 is a front view of the fluorescent lamp L2, and FIG. 3 shows one end of an arc tube of the fluorescent lamp L2, and FIGS. 4 (a) to 4 (c).
Is a sectional view.
【００１２】なお、図中、図１ないし図４と同一部分に
は同一の符号を付してその説明は省略する。In the drawings, the same parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof will be omitted.
【００１３】上記図２に示す電球形蛍光ランプＬ３に用
いる発光管Ｌ２の製造過程の概略を図１を参照して順を
追って説明する。まず、図１（ａ）に示すようにＵ字形
に屈曲されるとともに内面にアルミナ保護膜および蛍光
体膜が形成されたガラスバルブ１Ａ，１Ｂ，１Ｃおよび
細管４を３本と、ビードマウント３を２個用意する。The outline of the manufacturing process of the arc tube L2 used for the bulb-type fluorescent lamp L3 shown in FIG. 2 will be described step by step with reference to FIG. First, as shown in FIG. 1 (a), three glass bulbs 1A, 1B, 1C and three thin tubes 4 which are bent in a U-shape and have an alumina protective film and a phosphor film formed on the inner surface, and a bead mount 3 are formed. Prepare two.
【００１４】つぎに、図１（ｂ）に示すように２本のガ
ラスバルブ１Ａ，１Ｃの両端部内にビードマウント３と
細管４を別個に配設してこの両端部を加熱し、ガラスが
軟化溶融してきたらピンチャーで押圧してピンチシール
（封止）部２Ｃ，２Ｄを形成する。また、残る１本のガ
ラスバルブ１Ｂの一方には細管４を配設してピンチシー
ル（封止）部２Ｄを形成する。なお、これら各ピンチシ
ール（封止）部２Ｄ，…には細管４部分の内壁に突出し
た縮径部４２が形成してあり、この縮径部４２の最小間
隔（内径）ｓは原形細管４の内径ｄの３０〜９０％に縮
径されている。また、残る他方の端部はマウントや細管
を配設せずに、ピンチシール（封止）または他の封止手
段、ここではピンチシール（封止）部２Ｅが形成されて
いる。Next, as shown in FIG. 1 (b), a bead mount 3 and a thin tube 4 are separately provided in both ends of two glass bulbs 1A and 1C, and both ends are heated to soften the glass. After melting, it is pressed with a pincher to form pinch seal (sealing) portions 2C and 2D. A thin tube 4 is provided on one of the remaining glass bulbs 1B to form a pinch seal (sealing) portion 2D. Each of the pinch seals (sealing portions) 2D,... Has a reduced diameter portion 42 protruding from the inner wall of the thin tube 4, and the minimum interval (inner diameter) s of the reduced diameter portion 42 is equal to that of the original thin tube 4. Is reduced to 30 to 90% of the inner diameter d. On the other end, a pinch seal (sealing) or other sealing means, here, a pinch seal (sealing) portion 2E is formed without disposing a mount or a thin tube.
【００１５】そして、これらピンチシール（封止）部２
Ｃ，２Ｄ，２Ｅの形成直後にピンチシール（封止）部２
Ｄ，２Ｅの近傍のガラス部分を局部的に加熱しておくと
ともに細管４よりブローイングして、この加熱溶融した
ガラスを吹き破らせ開口させるとともにこの開口部に突
出部２Ｔを形成する。The pinch seal (sealing) portion 2
Immediately after the formation of C, 2D and 2E, a pinch seal (sealing) portion 2
The glass portions near D and 2E are locally heated and blown from the thin tube 4 to blow out the heated and melted glass to form an opening, and a projection 2T is formed in the opening.
【００１６】つぎに、図１（ｃ）に示すようにガラスバ
ルブ１Ａと１Ｂとの突出部２Ｔ，２Ｔを突き合わせて加
熱し両者を融合させて気密に接続し連通管２Ｒを形成
し、さらにガラスバルブ１Ｂの他方の突出部２Ｔとガラ
スバルブ１Ｃの突出部２Ｔとを突き合わせて加熱し両者
を融合させて同様に連通管２Ｒを形成して、図１（ｄ）
に示すように各ガラスバルブ１Ａ，１Ｂ，１Ｃが円環状
となるように配設する。Next, as shown in FIG. 1 (c), the protruding portions 2T, 2T of the glass bulbs 1A, 1B are abutted and heated to fuse the two and airtightly connected to form a communication tube 2R. The other protruding portion 2T of the bulb 1B and the protruding portion 2T of the glass bulb 1C are abutted and heated to fuse them to form a communication tube 2R in the same manner, and FIG.
The glass bulbs 1A, 1B, 1C are arranged in a ring shape as shown in FIG.
【００１７】つぎに、この一体化したガラスバルブ１
Ａ，１Ｂ，１Ｃのうち、内壁に縮径部４２を形成したた
とえばバルブ１Ｂの細管４内に粒状の水銀構体６を収容
して、この細管４の突出した先端をできる限り短く封切
する。そして、残りの開口している１〜２本の細管４を
排気マシンの排気ヘッドに接続し、連通している各ガラ
スバルブ１Ａ，１Ｂ，１Ｃの内部を排気し、通常の通り
ガス洗浄などを行った後所定の希ガスを所定圧封入して
排気ヘッドに接続している細管４を封切して、発光管Ｌ
２が得られる。Next, the integrated glass bulb 1
Of the tubes A, 1B, and 1C, the granular mercury structure 6 is accommodated in, for example, the thin tube 4 of the valve 1B having the reduced diameter portion 42 formed on the inner wall, and the protruding tip of the thin tube 4 is sealed as short as possible. The remaining one or two thin tubes 4 are connected to the exhaust head of an exhaust machine, and the insides of the communicating glass valves 1A, 1B, 1C are exhausted, and gas cleaning is performed as usual. After the operation, a predetermined rare gas is sealed at a predetermined pressure, the thin tube 4 connected to the exhaust head is sealed, and the light emitting tube L
2 is obtained.
【００１８】なお、上記排気作業は１本の細管４によっ
ても行えるので、水銀構体６を収容していない残りの細
管４は予め封切してあってもよい。Since the above evacuation operation can be performed by one thin tube 4, the remaining thin tubes 4 not containing the mercury structure 6 may be sealed in advance.
【００１９】そして、上記３本のガラスバルブ１Ａ，１
Ｂ，１Ｃを一体化した発光管Ｌ２は、図（ｅ）に示すよ
うにガラスバルブ１Ａ，１Ｂ，１Ｃ部分が接着剤８２を
介しＰＢＴ樹脂からなる円皿状の固定板８１に接合して
支持される。また、この固定板８１には、点灯回路装置
８３が取付けられ、さらに、カバー体８４や口金８５、
必要に応じ透光性グローブ８６が被せられ、図２に示す
電球形蛍光ランプＬ３として完成する。The above three glass bulbs 1A, 1
As shown in FIG. 5E, the arc tube L2 integrated with B and 1C has the glass bulbs 1A, 1B and 1C joined to a disc-shaped fixing plate 81 made of PBT resin via an adhesive 82 and supported. Is done. A lighting circuit device 83 is attached to the fixing plate 81, and a cover body 84, a base 85,
If necessary, a translucent globe 86 is put on the globe 86 to complete the bulb-type fluorescent lamp L3 shown in FIG.
【００２０】そして、上記発光管Ｌ２の、ガラスバルブ
１Ｂの端部のピンチシール（封止）部２Ｄは、図３に拡
大して示す構成をなしている。バルブ１端部の細管４内
に配設された粒状の水銀構体６は、原形細管４の内径よ
り小さいが、ピンチシール（封止）部２Ｄ内に位置する
細管４部分の一部内壁を縮径してこの水銀構体６の大き
さより小さい間隔となるよう突出形成した縮径部４２を
水銀構体６の移動規制部としているので、細管４の透孔
４１を介しての移動が阻止される。The pinch seal (sealing) portion 2D at the end of the glass bulb 1B of the arc tube L2 has a configuration enlarged in FIG. The granular mercury structure 6 disposed in the thin tube 4 at the end of the valve 1 is smaller than the inner diameter of the original thin tube 4, but partially shrinks the inner wall of the thin tube 4 located in the pinch seal (sealing) portion 2D. Since the reduced diameter portion 42 formed so as to protrude so as to have an interval smaller than the size of the mercury structure 6 is used as the movement restricting portion of the mercury structure 6, movement of the thin tube 4 through the through hole 41 is prevented.
【００２１】したがって、水銀Ｈｇ蒸気は細管４の透孔
４１を通過し連通しているバルブ１内へと拡散していく
が、水銀構体６自体は縮径部４２によってバルブ１内へ
の侵入が阻止される結果、水銀構体６がバルブ１内を移
動して異音を発したり、この移動により蛍光体被膜１５
を剥がして傷を付けたりあるいはバルブ１内面に止まり
影を作って発光管Ｌ３の外観を低下する等のことがな
い。Therefore, the mercury Hg vapor diffuses into the valve 1 which passes through the through hole 41 of the thin tube 4 and communicates therewith, but the mercury structure 6 itself enters the valve 1 by the reduced diameter portion 42. As a result, the mercury structure 6 moves inside the bulb 1 to generate abnormal noise, and the movement causes the phosphor coating 15 to move.
Of the light emitting tube L3 by peeling off the surface of the light emitting tube L3 and damaging the inner surface of the bulb 1 to form a shadow.
【００２２】本実施形態の特徴は、ガラスバルブ１Ａ，
１Ｂ，１Ｃを固定板８１に接合する接着剤８２の塗布充
填状態にある。The feature of this embodiment is that the glass bulb 1A,
An adhesive 82 for joining 1B and 1C to the fixing plate 81 is in an applied and filled state.
【００２３】発光管Ｌ２は、円皿状をなす固定板８１に
接着剤８２を介し接合して支持されるが、接着剤８２の
塗布充填状態によってはガラスバルブ１Ａ，１Ｂ，１Ｃ
に応力が加わり好ましくない状態にあることが分かっ
た。The arc tube L2 is supported by being joined to a fixing plate 81 having a disk shape via an adhesive 82. Depending on the state of application and filling of the adhesive 82, the glass bulbs 1A, 1B, 1C are provided.
It was found that stress was applied to the steel sheet and it was in an undesirable state.
【００２４】すなわち、この接着剤８２を介してガラス
バルブ１Ａ，１Ｂ，１Ｃを固定板８１に接合させる場
合、固定板８１に穿孔した挿通孔（図示しない。）に挿
入されたバルブ端部を接着剤８２を介し接合する形態
は、図４（ａ）〜（ｃ）に示すような塗布充填状態とす
ると、図５（ｄ）〜（ｆ）に示すような従来の接着剤８
２の塗布充填状態よりも応力が少なくなることが分かっ
た。That is, when the glass bulbs 1A, 1B, and 1C are joined to the fixing plate 81 via the adhesive 82, the bulb ends inserted into insertion holes (not shown) formed in the fixing plate 81 are adhered. 4A to 4C, the conventional bonding agent 8 shown in FIGS. 5D to 5F is used for bonding via the agent 82.
It was found that the stress was lower than in the state of coating and filling of No. 2.
【００２５】図４（ａ）に示すものは、円周状に配置さ
れた複数のバルブ１Ａ，１Ｂ，１Ｃ間と固定板８１との
間に接着剤８２がバルブ端部全周には被着されない状態
で独立して塗布充填してある。また、図４（ｂ）に示す
ものは、各バルブ１Ａ，１Ｂ，１Ｃの外周部分と固定板
８１との間に多量におよび各バルブ１Ａ，１Ｂ，１Ｃの
内側にスポット的に接着剤８２（この内側の接着剤８２
は設けなくてもよい。）が塗布充填してある。また、図
４（ｃ）に示すものは、複数のバルブ１Ａ，１Ｂ，１Ｃ
の外側部分と固定板８１との間に連続して接着剤８２が
塗布充填してある。FIG. 4A shows an adhesive 82 between a plurality of circumferentially arranged valves 1A, 1B, 1C and a fixing plate 81, which is applied to the entire periphery of the valve end. State not to be
In it is then independently applied filling. 4 (b) shows a large amount of the adhesive 82 (see FIG. 4 (b)) between the outer peripheral portions of the valves 1A, 1B, 1C and the fixed plate 81 and inside the valves 1A, 1B, 1C. This inner adhesive 82
May not be provided. ) Is applied and filled. FIG. 4C shows a plurality of valves 1A, 1B, 1C.
An adhesive 82 is continuously applied and filled between the outer portion of the fixing member 81 and the fixing plate 81.
【００２６】そして、図４（ａ）〜（ｃ）に示すように
接着剤８２を充填塗布することで、複数のガラスバルブ
同士を内側に押圧する応力が低減される。また、バルブ
１Ａ，１Ｂ，１Ｃの内側中央部に比べ外側が多く接触す
るようにしたことにより、接着剤８２硬化後にバルブ１
Ａ，１Ｂ，１Ｃを内側に収縮させる応力がさらに低減さ
れ、バルブ１Ａ，１Ｂ，１Ｃのガラス破壊を防止でき
る。特に、この実施の形態のように複数本のバルブを連
設させたものにおいて効果がある。Then, as shown in FIGS. 4 (a) to 4 (c), by filling and applying the adhesive 82, the stress of pressing a plurality of glass bulbs inward is reduced. In addition, since the outside of the valve 1A, 1B, and 1C contacts more than the center of the inside, the valve 1 after the adhesive 82 is cured.
The stress that causes A, 1B, and 1C to contract inward is further reduced, and glass breakage of the bulbs 1A, 1B, and 1C can be prevented. In particular, there is an effect in the case where a plurality of valves are connected in series as in this embodiment.
【００２７】因みに、外径が約１０．１ｍｍ、内径が約
８．５ｍｍのバルブ１の一端部内に一対のリード線を有
するビードマウント３を、また、他端部内に外径が約
３．８ｍｍ内径ｄが約２．７ｍｍの細管４を配置してお
いてピンチシール（封止）を行ないシール（封止）部２
Ｃ〜２Ｆを形成した場合、シール（封止）部２Ｅ内の細
管４の透孔４１内径が約２．４ｍｍで内壁から突出した
移動規制用の縮径部４２の先端部間間隔ｓが約１．５ｍ
ｍとなり、外径約２．２ｍｍの水銀構体６のバルブ１内
への侵入を阻止することができるとともに細管根元強度
を向上させることができた。Incidentally, a bead mount 3 having a pair of lead wires is provided in one end of the bulb 1 having an outer diameter of about 10.1 mm and an inner diameter of about 8.5 mm, and an outer diameter of about 3.8 mm is provided in the other end. A thin tube 4 having an inner diameter d of about 2.7 mm is arranged, and a pinch seal (sealing) is performed to perform a sealing (sealing) portion 2.
In the case where C to 2F are formed, the inner diameter of the through-hole 41 of the thin tube 4 in the seal (sealing) portion 2E is about 2.4 mm, and the distance s between the distal end portions of the reduced diameter portion 42 for movement restriction projecting from the inner wall is about 1.5m
m, so that the intrusion of the mercury structure 6 having an outer diameter of about 2.2 mm into the bulb 1 was able to be prevented, and the capillary root strength was able to be improved.
【００２８】また、シール（封止）部２Ｄ内の縮径部４
２の内径が絶対値で０．８ｍｍ以上の範囲内であれば、
通常の蛍光ランプ製作の排気工程において所定の真空度
や希ガスの封入が行え、排気コンダクタンスの問題もな
く、縮径部の肉溜りによる歪み発生がなく細管根元強度
が弱くなることもなく、また、既存の粒径の水銀構体６
を用いることができ、完成した発光管Ｌ３は始動電圧や
ランプ電圧の上昇が小さく、寿命中の光束低下の少ない
長寿命の電球形蛍光ランプＬ３を提供することができ
る。The reduced diameter portion 4 in the seal (sealing) portion 2D
If the inner diameter of 2 is within the range of 0.8 mm or more in absolute value,
A predetermined degree of vacuum or a rare gas can be charged in the evacuation process of ordinary fluorescent lamp production, there is no problem of evacuation conductance, no distortion occurs due to the accumulation of thin portion of the reduced diameter portion, and the thin tube root strength is not weakened. , An existing particle size mercury structure 6
Can be used, and the completed arc tube L3 can provide a long-life bulb-type fluorescent lamp L3 with a small increase in starting voltage and lamp voltage and little decrease in luminous flux during the life.
【００２９】なお、上記実施の形態に示す蛍光ランプと
しての発光管Ｌ２は、細管４内に水銀構体６を収容した
が、細管４内に水銀構体６を収容せず、バルブ内やマウ
ントに水銀を配設したランプであっても差支えない。The light emitting tube L2 as a fluorescent lamp shown in the above embodiment accommodates the mercury structure 6 in the thin tube 4, but does not store the mercury structure 6 in the thin tube 4, but the mercury structure in the bulb or the mount. The lamps provided with may be used.
【００３０】また、ピンチシール（封止）部２Ｄにおけ
る細管４根元部の封着不足によるリークの防止や細管４
根元部の強度向上が図れ、発光管Ｌ２や電球形ランプＬ
３の取扱時あるいは口金取着時等に細管４に起因する不
良を低減できる等の作用効果を奏する。Further, it is possible to prevent leakage due to insufficient sealing at the root of the thin tube 4 in the pinch seal (sealing) portion 2D and to prevent the thin tube 4 from being leaked.
The strength of the base can be improved, and the arc tube L2 and bulb-shaped lamp L
This has the effect of reducing defects caused by the thin tube 4 when handling or attaching the base 3 or the like.
【００３１】本実施形態の電球形蛍光ランプＬ３は、照
明装置に装着されて点灯される。この照明装置は取付
具、電源接続機構、グローブやセード等の制光体および
ランプホルダやソケット等が取付けられている。そし
て、電球形蛍光ランプＬ３はランプホルダに支持されて
いるとともに、口金部が通常のＥ形ソケットに装着され
て、電球の代替えとして高効率と長寿命が得られる。The bulb-type fluorescent lamp L3 of the present embodiment is mounted on a lighting device and turned on. This lighting device is provided with a fixture, a power connection mechanism, a light control body such as a globe or a shade, a lamp holder, a socket, and the like. The bulb-type fluorescent lamp L3 is supported by the lamp holder, and the base is attached to a normal E-shaped socket, so that high efficiency and long life can be obtained as a substitute for the bulb.
【００３２】なお、この照明装置の形態は、各種蛍光ラ
ンプの形状、目的や適用に応じて変化できることはいう
までもない。It is needless to say that the form of the lighting device can be changed according to the shape, purpose and application of various fluorescent lamps.
【発明の効果】請求項１の電球形蛍光ランプによれば、
接着剤の充填状態が最適化されているので、接着剤の収
縮に伴ってバルブを内側に収縮させるように加わる応力
が少なくなり、バルブの破壊を抑制することができる。According to the first aspect of the present invention, there is provided a bulb-type fluorescent lamp.
Since the filling state of the adhesive is optimized, the stress applied to contract the valve inward with the contraction of the adhesive is reduced, and the destruction of the valve can be suppressed.
【００３３】請求項２の電球形蛍光ランプによれば、接
着剤が蛍光ランプのバルブ各端部がなす円環の内側に比
べて外側が多くなるように充填されているので、バルブ
を内側に収縮させるように加わる応力を一層少なくする
ことができる。According to self-ballasted fluorescent lamp of claim 2, since the adhesive is filled so much outside than on the inside of the ring formed by the valve at each end of the fluorescent lamp, the bulb inside The stress applied to cause contraction can be further reduced.
【００３４】請求項３の電球形蛍光ランプによれば、接
着剤をさほど時間をかけることなく容易に硬化させるこ
とができ、生産性の低下を抑制することができる。According to the bulb-type fluorescent lamp of the third aspect, the adhesive can be easily cured without taking much time, and a decrease in productivity can be suppressed.
【図１】本発明の一実施形態である電球形蛍光ランプの
蛍光ランプの製造過程を示す説明図。FIG. 1 is an explanatory view showing a manufacturing process of a fluorescent lamp of a compact fluorescent lamp according to an embodiment of the present invention.
【図２】図１の電球形蛍光ランプの正面図。FIG. 2 is a front view of the compact fluorescent lamp of FIG. 1;
【図３】図１の電球形蛍光ランプの蛍光ランプの一端部
を示す拡大断面図。FIG. 3 is an enlarged cross-sectional view showing one end of the fluorescent lamp of the compact fluorescent lamp of FIG. 1;
【図４】図１の電球形蛍光ランプの接着剤の塗布充填状
態を示す断面図。FIG. 4 is a cross-sectional view showing a state in which an adhesive is applied and filled in the compact fluorescent lamp of FIG. 1;
【図５】従来の電球形蛍光ランプの接着剤の塗布充填状
態を示す断面図。FIG. 5 is a cross-sectional view showing a state in which a conventional light-bulb-shaped fluorescent lamp is applied and filled with an adhesive.
１Ａ，１Ｂ，１Ｃ…Ｕ字形バルブ ２Ｒ…連通管 ８１…固定板 ８２…接着剤 ８３…点灯回路 ８４…カバー ８５…口金 Ｌ２…蛍光ランプ Ｌ３…電球形蛍光ランプ 1A, 1B, 1C: U-shaped bulb 2R: Communication tube 81: Fixing plate 82: Adhesive 83: Lighting circuit 84: Cover 85: Base L2: Fluorescent lamp L3: Light bulb fluorescent lamp
───────────────────────────────────────────────────── フロントページの続き (72)発明者 星井 宏和 東京都品川区東品川四丁目３番１号東芝 ライテック株式 会社内 (56)参考文献 特開 平10−40724（ＪＰ，Ａ) 特開 平10−50258（ＪＰ，Ａ) 特開 平３−101047（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01J 61/30 - 61/34 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hirokazu Hoshii 4-3-1 Higashishinagawa, Shinagawa-ku, Tokyo Toshiba Lighting & Technology Corporation (56) References JP-A-10-40724 (JP, A) JP-A Heisei 10-50258 (JP, A) JP-A-3-101047 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) H01J 61/30-61/34
Claims (3)
し、このバルブの非屈曲側の各端部が円環状に配設され
るようにバルブ同士が連通管によって接続されるととも
に両端に電極が配置された蛍光ランプと； この蛍光ランプのバルブ各端部が挿通される挿通孔を備
えた固定板と； この固定板に挿通された蛍光ランプのバルブ各端部のう
ち隣接する端部同士の間にバルブ端部全周には被着され
ない状態で独立して充填されて蛍光ランプのバルブ端部
と固定板とを接合する接着剤と； この固定板に支持された点灯回路と； 点灯回路を覆って固定板に被せられたカバーと； このカバーに取付けられた口金と； を具備していることを特徴とする電球形蛍光ランプ。1. A valve having a plurality of valves bent in a U-shape, the valves being connected to each other by a communication pipe so that each end on the non-bent side of the valve is disposed in an annular shape. A fixed plate having an insertion hole through which each end of the bulb of the fluorescent lamp is inserted; and an adjacent end of each end of the bulb of the fluorescent lamp inserted through the fixed plate. Is attached to the entire circumference of the valve end
Filled independently with no state with the valve end of the fluorescent lamp and the fixed plate and the adhesive for bonding the; the fixed and the lighting circuit is supported on the plate; and a cover which is placed over the fixed plate to cover the lighting circuit And a base attached to the cover.
は、蛍光ランプのバルブ各端部がなす円環の内側に比べ
て外側が多くなるように接着剤が充填されていることを
特徴とする請求項１記載の電球形蛍光ランプ。Wherein contact between the valve end of the adhesive and the fluorescent lamp, that the adhesive so much outside than on the inside of the ring formed by the valve each end of the fluorescent lamp is filled The bulb-type fluorescent lamp according to claim 1.
であることを特徴とする請求項１または２記載の電球形
蛍光ランプ。3. The compact fluorescent lamp according to claim 1, wherein the adhesive is a heat-curable silicone adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000116048A JP3241706B2 (en) | 1998-03-31 | 2000-04-18 | Bulb-type fluorescent lamp |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10-86134 | 1998-03-31 | ||
| JP8613498 | 1998-03-31 | ||
| JP2000116048A JP3241706B2 (en) | 1998-03-31 | 2000-04-18 | Bulb-type fluorescent lamp |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33994098A Division JPH11345592A (en) | 1998-03-31 | 1998-11-30 | Low pressure mercury vapor discharge lamp and lighting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000331645A JP2000331645A (en) | 2000-11-30 |
| JP3241706B2 true JP3241706B2 (en) | 2001-12-25 |
Family
ID=26427289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000116048A Expired - Lifetime JP3241706B2 (en) | 1998-03-31 | 2000-04-18 | Bulb-type fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3241706B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213371A (en) * | 2010-04-09 | 2011-10-12 | 亿光电子工业股份有限公司 | Lamp structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008059952A (en) * | 2006-08-31 | 2008-03-13 | Toshiba Lighting & Technology Corp | Lamp device and lighting system |
-
2000
- 2000-04-18 JP JP2000116048A patent/JP3241706B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213371A (en) * | 2010-04-09 | 2011-10-12 | 亿光电子工业股份有限公司 | Lamp structure |
| CN102213371B (en) * | 2010-04-09 | 2013-01-16 | 亿光电子工业股份有限公司 | Lamp structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000331645A (en) | 2000-11-30 |
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