JPH09320546A - External lead structure of tungsten halogen bulb - Google Patents
External lead structure of tungsten halogen bulbInfo
- Publication number
- JPH09320546A JPH09320546A JP15311496A JP15311496A JPH09320546A JP H09320546 A JPH09320546 A JP H09320546A JP 15311496 A JP15311496 A JP 15311496A JP 15311496 A JP15311496 A JP 15311496A JP H09320546 A JPH09320546 A JP H09320546A
- Authority
- JP
- Japan
- Prior art keywords
- sealing
- bulb
- foil
- sealing foil
- halogen bulb
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は封止部における歪みが少
なく、それ故封体の破裂が少なくて安全であり且つその
全長を短くする事の出来る新規なハロゲン電球に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel halogen light bulb which has less distortion in a sealed portion and therefore less rupture of a sealed body and is safe and whose total length can be shortened.
【０００２】[0002]
【従来の技術】従来のハロゲン電球(B')は図９に示すよ
うに、封止部(13')内に埋設した封止用箔(10')の一端に
フィラメント(6')のリード部(21')を、封止用箔(10')の
他端に外部リード棒(11')を溶接し、外部リード棒(11')
を封止部(13')から外方に突出させた形状のものであっ
た。2. Description of the Related Art As shown in FIG. 9, a conventional halogen bulb (B ') has a filament (6') lead at one end of a sealing foil (10 ') embedded in a sealing portion (13'). Part (21 '), by welding the external lead rod (11') to the other end of the sealing foil (10 '), the external lead rod (11')
Had a shape in which it was projected outward from the sealing portion (13 ′).
【０００３】封止用箔(10')を使用する理由は、封止部
(13')内に埋設された封止用箔(10')が封止部(13')に完
全に拘束され、封止部(13')の熱伸縮に合わせて伸縮し
て封体(1')のフィラメント封入部(8')内部と外部とが完
全に気体の出入りが遮断された状態を保つことが出来る
ようにするためである。そのためには外部リード棒(1
1')の先端とリード部(21')の先端との間の距離(L3')
《この部分を密着部分(L3')とする。》は、条件によっ
て異なるもののある程度の長さが必要となり、密着部分
(L3')が短か過ぎると、密着部分(L3')から極く微細なリ
ークが発生し、封体(1')内に空気（主原因は酸素）が侵
入し、その酸素によりフィラメント(6')の断線やフィラ
メント封入部(8')の黒化を引き起こし、ハロゲン電球
(B')としての寿命が著しく短くなるという問題があっ
た。The reason for using the sealing foil (10 ') is that the sealing portion is
The sealing foil (10 ') embedded in (13') is completely constrained by the sealing part (13 '), and expands and contracts in accordance with the thermal expansion and contraction of the sealing part (13') ( This is so that the inside and outside of the filament enclosing portion (8 ') of 1') can be kept in a state in which gas is completely blocked. To do this, use the external lead bar (1
Distance between tip of 1 ') and tip of lead (21') (L3 ')
<< This part is the close contact part (L3 '). 》 Requires a certain length although it depends on the conditions.
If (L3 ') is too short, an extremely fine leak will occur from the close contact part (L3'), and air (mainly oxygen) will enter the enclosure (1 '), and the oxygen will cause filament ( 6 ') disconnection and filament encapsulation (8') blackening, causing halogen bulb
There is a problem that the life as (B ') is significantly shortened.
【０００４】そこで、リーク防止のためには密着部分(L
3')はある程度の長さが必要になり且つ溶接代(M1')(M
2')が必要になるため、封止用箔(10')は全長で(H3')が
要求されることになる。そして、封止部(13')に前記封
止用箔(10')の全体が埋設されるため、封止用箔(10')全
体を埋設するために必要な部分を含めた長さ(P3')が要
求される。その結果、封止部(13')が全体で(P3')と長く
なるためハロゲン電球(B')の全長もその全体で(S3')と
長大なものになる。Therefore, in order to prevent leakage, the close contact portion (L
3 ') requires a certain length and the welding allowance (M1') (M
Since 2 ') is required, the sealing foil (10') is required to have (H3 ') in the entire length. Then, since the whole of the sealing foil (10 ') is embedded in the sealing portion (13'), a length including a portion necessary for embedding the entire sealing foil (10 ') ( P3 ') is required. As a result, the entire length of the sealing portion (13 ′) is (P3 ′), and the entire length of the halogen bulb (B ′) is also large (S3 ′).
【０００５】図１０は、封止部(13')の部分拡大正断面
図であるが、外部リード棒(11')は太い金属棒であるた
め封止部(13')内に埋設されている部分と封止部(13')と
の間には外部リード棒(11')の末端部《即ち、封止用箔
(10')との溶接部分近辺》に至る微細な間隙(K')がどう
しても発生する。間隙(K')は外部と繋がっているので、
当然間隙(K')内には空気が侵入してくる。そして封止用
箔(10')は一般的にはモリブデン製であるため３６０℃
以上に加熱されると酸化が急速に始まる。FIG. 10 is a partially enlarged front sectional view of the sealing part (13 '). Since the external lead rod (11') is a thick metal rod, it is embedded in the sealing part (13 '). The end of the external lead rod (11 ') << that is, the sealing foil
A minute gap (K ') reaching the vicinity of the welded part with (10') is inevitable. Since the gap (K ') is connected to the outside,
Naturally, air enters the gap (K '). And since the sealing foil (10 ') is generally made of molybdenum, the temperature is 360 ° C.
Oxidation begins rapidly when heated above.
【０００６】ハロゲン電球(B')は点灯時高温に曝され、
封止部(13')は時として３６０℃以上になる。その結
果、点灯時の３６０℃以上の熱で封止用箔(10')が外部
リード棒(11')との溶接部分(a')を起点として侵入空気
によって急速に酸化され膨張し、酸化部分の境界におい
て封止部(13')の内面と封止用箔(10')とが剥離される。
そしてこの剥離部分に酸素が供給され次第に酸化が見た
目には貝殻状に成長して密着部分(L3')を侵食し、次第
に密着部分(L3')の幅を短くしていく。特に、外部リー
ド棒(11')と封止用箔(10')との溶接部にはどうしても僅
かな酸化と大きな残留歪みが存在しているため、３６０
℃以上に加熱されると封止用箔(10')の酸化が、前記溶
接部の僅かな酸化が核となって急速に進む。その結果、
残存している歪みとの相乗効果で剥離が進行し、フィラ
メント封入部(8')と外気との間でリークが発生し、前述
のようにフィラメント(6')の断線やフィラメント封入部
(8')の黒化を引き起こすことになる。Halogen bulb (B ') is exposed to high temperature during lighting,
The sealing portion (13 ') sometimes reaches 360 ° C. or higher. As a result, the sealing foil (10 ') was rapidly oxidized and expanded by the invading air from the welded portion (a') with the external lead rod (11 ') as a starting point by the heat of 360 ° C or more during lighting, and was oxidized. The inner surface of the sealing portion (13 ′) and the sealing foil (10 ′) are separated at the boundary between the portions.
Then, when oxygen is supplied to the peeled portion, oxidation is observed, and the appearance grows like a shell to erode the close contact portion (L3 ′), and the width of the close contact portion (L3 ′) is gradually shortened. In particular, since there is inevitably slight oxidation and a large residual strain at the welded portion between the external lead rod (11 ') and the sealing foil (10'), 360
When heated above 0 ° C., the oxidation of the sealing foil (10 ′) rapidly progresses with the slight oxidation of the welded portion serving as the nucleus. as a result,
Peeling progresses due to the synergistic effect with the remaining strain, and a leak occurs between the filament encapsulation part (8 ') and the outside air.
This will cause blackening of (8 ').
【０００７】更に、ピンチ封止時に、太い外部リード棒
(11')によって封止部(13')が変形して大きな歪みがその
部分の内部に形成され且つピンチ封止時の後の冷却時に
双方の膨張係数の違いから外部リード棒(11')との接触
内面に微細なクラックが発生する。たとえ十分な焼鈍を
行ったとしても完全に封止部(13')の歪みを除去する事
が出来ず、前記封止用箔(10')の酸化による膨張がこの
歪みの増大と前記微細クラックの成長を促し、最終的に
封止部(13')が破損すると原因となる事があった。Further, at the time of pinch sealing, a thick external lead bar
(11 ') causes the encapsulation part (13') to deform and a large strain is formed inside the part, and the external lead rod (11 ') due to the difference in expansion coefficient between the two when cooling after pinch encapsulation. Fine cracks are generated on the inner surface in contact with. Even if sufficient annealing is performed, the distortion of the sealing portion (13 ') cannot be completely removed, and the expansion due to the oxidation of the sealing foil (10') increases the distortion and the fine cracks. This may promote the growth of the, and eventually cause damage to the sealing part (13 ').
【０００８】また、外部リード棒(11')の封止部(13')へ
の埋設代はある程度の長さが必要である。前記埋設代が
短いと、外部リード棒(11')に力が加わると封止用箔
(10')から外れると電気的接触不能となると共に場合に
よっては封止部(13')から抜け落ちる事がある。抜け
落ちないまでも封止部(13')に直接外部リード棒(11')の
力が加わって封止部(13')が破損するという問題があっ
た。なお、フィラメント(6)はリード部(21)を含む概念
であり、リード部(21)は図のようにシングルコイル部分
の上に別体の保護コイルを被せたものでもよいし、細い
棒状の内部リード棒をリード部(21)に用い、コイルの端
部を巻着したりする事も可能であるし、前記シングルコ
イルをそのまま封止用箔(10)に溶接してもよい。その
他、種々の方法でリード部(21)を形成する事が出来る事
は言うまでもない。また、以上の点はシングルエンド型
ハロゲン電球においても同様である。Further, the margin for embedding the external lead rod (11 ') in the sealing portion (13') requires a certain length. If the embedding margin is short, the encapsulation foil will be applied when force is applied to the external lead rod (11 ').
If it comes off from (10 '), it may become impossible to make electrical contact and may fall off from the sealing part (13') in some cases. Even if the sealing portion (13 ') does not fall off, the force of the external lead rod (11') is directly applied to the sealing portion (13 ') and the sealing portion (13') is damaged. The filament (6) is a concept including the lead portion (21), and the lead portion (21) may be a single coil portion covered with a separate protective coil as shown in the figure, or may be a thin rod. It is also possible to use an internal lead rod for the lead portion (21) and wind the end of the coil, or the single coil may be directly welded to the sealing foil (10). Needless to say, the lead part (21) can be formed by various methods. The above points also apply to the single-ended halogen bulb.
【０００９】[0009]
【発明が解決しようとする課題】本発明は、封止部の
弱点を除去して封止部の端部からの封止用箔の酸化やク
ラック発生を防止すること、封止部を短くしてハロゲ
ン電球の全長を短くする事をその解決課題とする。SUMMARY OF THE INVENTION According to the present invention, the weak points of the sealing portion are removed to prevent oxidation and cracking of the sealing foil from the end of the sealing portion, and to shorten the sealing portion. The problem to be solved is to shorten the total length of the halogen bulb.
【００１０】[0010]
【課題を解決するための手段】『請求項１』に記載のハ
ロゲン電球(A)の外部リード構造の第１例(A1a)《図１参
照》とその変形例(A2a)《図３参照》は「封体(1)に封止
部(13)が形成され、封止部(13)内に封止用箔(10)の一部
が埋設され、その残部(10a)が封止部(13)から外方に突
出しており、封体(1)内に収納されているフィラメント
(6)の端部が封止用箔(10)に接続されている」事を特徴
とする。[Means for Solving the Problems] A first example (A1a) << see FIG. 1 >> of an external lead structure of a halogen light bulb (A) according to claim 1 and its modification (A2a) << see FIG. 3 >>. `` A sealing part (13) is formed in the sealing body (1), a part of the sealing foil (10) is embedded in the sealing part (13), and the remaining part (10a) is the sealing part (10). Filament protruding outward from 13) and contained in the envelope (1)
The end of (6) is connected to the sealing foil (10). "
【００１１】これによれば、封止用箔(10)の埋設部分に
従来のような間隙(K')が形成されることがないため、封
止用箔(10)の封止部(13)内での酸化が発生せず、封止部
(13)との剥離を防止する事が出来る。また、封止用箔(1
0)は通常２０〜３０μｍの薄い平坦な部材であるから封
止部(13)に大きな歪みを生じさせる事がなく、クラック
発生の原因になる事もない。According to this, since the gap (K ') unlike the conventional case is not formed in the embedded portion of the sealing foil (10), the sealing portion (13) of the sealing foil (10) is formed. ) Inside the sealed part
It is possible to prevent peeling from (13). Also, the sealing foil (1
Since 0) is a thin and flat member having a thickness of usually 20 to 30 μm, it does not cause a large strain in the sealing portion (13) and does not cause a crack.
【００１２】更に、封止部(13)から封止用箔(10)の端部
(10a)が直接突出しているので、リーク防止に必要な密
着部分は、封止部(13)の端部からフィラメント(6)の端
部迄の距離(L1)ということになり、従来のハロゲン電球
(B')における外部リード棒(11')の封止部(13')に対する
埋設代(M3')が不要となり、その分だけ封止部(13)を短
くすることが出来る。その結果、ダブルエンド型ハロゲ
ン電球(A1a)の全長(S1a)或いはシングルエンド型ハロゲ
ン電球(A2a)の全長(S2a)が短くなり、アウタバルブ(2)
に収納し易くなる。なお、封止部(13)は図の実線で示す
ように封体(1)の端部に設けてもよいが、仮想線で示す
ように必ずしも端部でなくともよい。この場合、必要に
応じて仮想線で示す部分を後工程で切除する事も出来る
し、そのままにしておいて図８に示すようにステム(4)
の一部或いは全部として使用してもよい。この点は、他
の例でも同様である。このようにダブルエンドタイプの
封体(1)の両端部分(1a)(1b)或いはそのいずれか一方を
残して、或いはシングルエンドタイプの封体(1)の端部
(1c)を残して封体(1)の途中部分をピンチングする場
合、ピンチング時のバーナ炎から封止用箔(10)の突出部
分(10a)を保護することが出来て好都合である。Furthermore, from the sealing portion (13) to the end of the sealing foil (10)
Since (10a) directly projects, the close contact part required for leak prevention is the distance (L1) from the end of the sealing part (13) to the end of the filament (6), which is the same as the conventional halogen. light bulb
The burying margin (M3 ') for the sealing portion (13') of the external lead rod (11 ') in (B') is unnecessary, and the sealing portion (13) can be shortened accordingly. As a result, the total length (S1a) of the double-ended halogen bulb (A1a) or the total length (S2a) of the single-ended halogen bulb (A2a) becomes shorter, and the outer bulb (2)
Easy to store in. The sealing portion (13) may be provided at the end of the sealing body (1) as shown by the solid line in the figure, but it need not necessarily be at the end as shown by the phantom line. In this case, if necessary, the portion indicated by the phantom line can be cut off in a later step, or the stem (4) can be left as it is as shown in FIG.
May be used as part or all of the above. This point is the same in other examples. In this way, leaving both ends (1a) and (1b) of the double-end type envelope (1) or one of them, or the end of the single-end type envelope (1).
When the middle part of the sealing body (1) is pinched while leaving (1c), it is convenient because the protruding part (10a) of the sealing foil (10) can be protected from the burner flame at the time of pinching.
【００１３】『請求項２』に記載のハロゲン電球(A)の
外部リード構造の第２例(A1b)《図２参照》とその変形
例(A2b)《図４参照》は「封体(1)に封止部(13)が形成さ
れ、封止部(13)内に封止用箔(10)の一部が埋設され、そ
の一端部(10a)が封止部(13)から外方に突出しており、
他端部(10b)が封体(1)内に突出していて、封体(1)内に
突出している封止用箔(10)の他端部(10b)に封体(1)内に
収納されているフィラメント(6)の端部が接続されてい
る」事を特徴とするものである。The second example (A1b) << see FIG. 2 >> of the external lead structure of the halogen bulb (A) and the modification (A2b) << see FIG. ) Is formed with a sealing part (13), a part of the sealing foil (10) is embedded in the sealing part (13), and one end (10a) of the sealing foil (10) is outward from the sealing part (13). Protruding into the
The other end (10b) is protruding into the sealing body (1), and the other end (10b) of the sealing foil (10) protruding into the sealing body (1) is inside the sealing body (1). The ends of the contained filaments (6) are connected ".
【００１４】この場合は、封止用箔(10)が封止部(13)の
内外に貫通するように配設されているので、封止部(13)
の全長(P1)(P2)が密着部分(L1)と等しくなり、封止部(1
3)の長さを更に短くする事ができる。その結果、ダブル
エンド型ハロゲン電球(A1b)の全長(S1b)或いはシングル
エンド型ハロゲン電球(A2b)の全長(S2b)が短くなり、ア
ウタバルブ(2)に更に収納し易くなる。In this case, since the sealing foil (10) is disposed so as to penetrate the inside and outside of the sealing portion (13), the sealing portion (13)
The total length (P1) (P2) of the
The length of 3) can be further shortened. As a result, the total length (S1b) of the double-ended halogen bulb (A1b) or the total length (S2b) of the single-ended halogen bulb (A2b) is shortened, and the outer bulb (2) can be more easily stored.
【００１５】[0015]
【実施例】以下、図面に示す実施例に従って本発明を詳
細に説明する。本発明のハロゲン電球(A)の第１実施例
(A1a)は、図１に示すようなダブルエンドタイプのもの
で、石英ガラス製の封体(1)の両端に実線で示すように
封止部(13)が形成され、或いは仮想線で示すように封体
(1)の一部に封止部(13)が形成されている。封体(1)のフ
ィラメント封入部(8)の内部にはフィラメント(6)が張設
されている。フィラメント(6)はダブルコイルのタング
ステン製で、両端にフィラメント(6)のシングルコイル
部にコイルを被せたリード部(21)が形成されており、前
記リード部(21)が封止用箔(10)の埋設端に溶接されてい
る。図示しないが、フィラメント(6)の適所に渦巻き状
に形成された１乃至複数のサポートを巻設し、前記サポ
ートの外周縁の一部を、封体(1)を内側に凹ましたサポ
ート固着部に埋設固定するようにしてもよい。勿論、前
記リード部(21)の形状は前記形状に限られるものでなく
フィラメント(6)のシングルコイル部分をそのまま封止
用箔(10)の埋設端に溶接してもよいし、棒状の内部リー
ド棒（図示せず）を介して封止用箔(10)に接続してもよ
い。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. First embodiment of halogen bulb (A) of the present invention
(A1a) is a double-end type as shown in FIG. 1, in which a sealing portion (13) is formed at both ends of a quartz glass sealing body (1) as shown by solid lines, or as shown by imaginary lines. Like a envelope
A sealing part (13) is formed in a part of (1). A filament (6) is stretched inside the filament enclosing portion (8) of the envelope (1). The filament (6) is made of a double coil tungsten, and a lead portion (21) is formed on both ends of the filament (6) by covering the single coil portion of the filament with the coil, and the lead portion (21) is a sealing foil ( It is welded to the buried end of 10). Although not shown, one or a plurality of supports formed in a spiral shape are wound around the filament (6) in a suitable position, and a part of the outer peripheral edge of the support is recessed in the sealing body (1). It may be fixed by being embedded in the. Of course, the shape of the lead portion (21) is not limited to the above shape, and the single coil portion of the filament (6) may be directly welded to the embedded end of the sealing foil (10), or the rod-shaped inside It may be connected to the sealing foil (10) via a lead rod (not shown).
【００１６】封止用箔(10)は２０〜３０μｍの薄いモリ
ブデン製のもので、その一部が封体(1)に形成された封
止部(13)内に埋設され、その残部が封止部(13)から外方
に突出している。従って、封止部(13)の端部からリード
部(21)の端部迄の間の距離(L1)は封止用箔(10)のみが埋
設されている事になる。この部分を密着部分(L1)とす
る。従って、この密着部分(L1)については封止用箔(10)
と封止部(13)とが完全に密着して間隙(K')が生じない。
図中、(M1)は封止用箔(10)とリード部(21)との溶接代で
あり、(H1)は封止用箔(10)の全長であり、(P1)は封止部
(13)の全長である。The sealing foil (10) is made of thin molybdenum having a thickness of 20 to 30 μm, a part of which is embedded in the sealing part (13) formed in the sealing body (1) and the rest is sealed. It projects outward from the stop (13). Therefore, the distance (L1) from the end of the sealing portion (13) to the end of the lead portion (21) is such that only the sealing foil (10) is embedded. This part is called the contact part (L1). Therefore, about this adhesion part (L1), the sealing foil (10)
The sealing part (13) and the sealing part (13) are completely in close contact with each other, and no gap (K ') is generated.
In the figure, (M1) is the welding allowance of the sealing foil (10) and the lead portion (21), (H1) is the total length of the sealing foil (10), and (P1) is the sealing portion.
It is the total length of (13).
【００１７】ここで、図９に示す従来例のハロゲン電球
(B')と比較した場合、従来例のハロゲン電球(B')の密着
部分(L3')と本発明のハロゲン電球(A1a)『(A2a)の場合
も同様』の密着部分(L1)とが等しいとした場合、従来例
の外部リード棒(11')の封止部(13')への挿入代(M3')が
不要となり、本発明の封止部(13)の全長(P1)は従来例の
封止部(13')に比べて挿入代(M3')だけ短くする事が出来
る。即ち、(P1)＝(P3')−(M3')となる。そして、その結
果、本発明のハロゲン電球(A1a)は従来例に比べてその
全長が(M3')の２倍だけ短くなる。即ち、(S1a)＝(S3')
−(M3')×２となる。そして、従来例のような間隙(K')
が発生しないので、封止用箔(10)の封止部(13)内での封
止部(13)内での酸化を防ぐ事が出来、且つ封止部(13)に
も大きな歪みが生じないので、貝殻状の剥離の発生させ
る事なく封止部(13)の破損を防ぐ事が出来る。Here, a conventional halogen bulb shown in FIG. 9 is used.
When compared with (B '), the contact portion (L3') of the halogen bulb of the conventional example (B ') and the halogen bulb (A1a) of the present invention (also in the case of (A2a)) the contact portion (L1) If they are equal, the insertion allowance (M3 ') to the sealing portion (13') of the external lead rod (11 ') of the conventional example becomes unnecessary, and the entire length of the sealing portion (13) of the present invention (P1). Can be shortened by the insertion margin (M3 ') as compared with the sealing portion (13') of the conventional example. That is, (P1) = (P3 ')-(M3'). As a result, the halogen bulb (A1a) of the present invention has a total length shorter than that of the conventional example by twice as much as (M3 '). That is, (S1a) = (S3 ')
− (M3 ′) × 2. And the gap (K ') as in the conventional example
Since it does not occur, it is possible to prevent oxidation in the sealing part (13) of the sealing foil (10) in the sealing part (13), and also large distortion in the sealing part (13). Since it does not occur, damage to the sealing portion (13) can be prevented without causing shell-like peeling.
【００１８】図２は、第１実施例(A1b)の変形例で、封
止用箔(10)が封止部(13)の内外に貫通している例であ
る。フィラメント(6)のリード部(21)は、封止用箔(10)
の内側突出端に溶接されている。この場合は、封止部(1
3)の全長にわたって封止用箔(10)に密着するので封止部
(13)の全長(P1)＝密着部分(L1)となり、より封止部(13)
の全長を短くする事が出来、ハロゲン電球(A1b)の全長
(S1b)を短くする事が出来る。また、封止用箔(10)が封
止部(13)の内外に貫通しているので、フィラメント(6)
のリード部(21)の封止用箔(10)との溶接部分が封止部(1
3)内に埋設されず、それ故封止部(13)のフィラメント封
入部(8)側部分において封止部(13)に歪みやクラックが
発生せず、封止部(13)での破損がより少なくなる。しか
も、封止部(13)全体が封止効果を持つため封止部(13)を
最小の長さにする事が出来る。FIG. 2 shows a modified example of the first embodiment (A1b), in which the sealing foil (10) penetrates inside and outside the sealing portion (13). The lead portion (21) of the filament (6) is a sealing foil (10).
Is welded to the inner protruding end of the. In this case, the sealing part (1
Since it adheres to the sealing foil (10) over the entire length of 3), the sealing part
Total length of (13) (P1) = close contact part (L1), more sealing part (13)
The total length of the halogen bulb (A1b) can be shortened.
(S1b) can be shortened. Further, since the sealing foil (10) penetrates inside and outside the sealing part (13), the filament (6)
The welded part of the lead part (21) with the sealing foil (10) is
3) Since it is not embedded in the sealing part (13), therefore, the sealing part (13) is not distorted or cracked at the filament enclosing part (8) side part of the sealing part (13), and the sealing part (13) is damaged. Will be less. Moreover, since the entire sealing portion (13) has a sealing effect, the sealing portion (13) can have a minimum length.
【００１９】図３は本発明にかかるハロゲン電球(A)の
第２実施例(A2a)で、シングルエンド型の場合である。
この場合も封止用箔(10)の一部が封止部(13)内に埋設さ
れ、残部が外部に突出している。そして、一対の内部リ
ード棒(21a)の一端が封止用箔(10)の埋設端に溶接され
ており、他端にフィラメント(6)が架設されている。こ
れにより、前述同様貝殻状剥離の発生を防止して封止部
(13)の破損を防ぐ事が出来る。FIG. 3 shows a second embodiment (A2a) of the halogen bulb (A) according to the present invention, which is a single end type.
Also in this case, a part of the sealing foil (10) is embedded in the sealing part (13), and the remaining part projects to the outside. Then, one end of the pair of inner lead rods (21a) is welded to the embedded end of the sealing foil (10), and the filament (6) is installed at the other end. This prevents the occurrence of shell-like peeling as described above and prevents the sealing part.
It is possible to prevent the damage of (13).
【００２０】図４は本発明にかかる第２実施例のシング
ルエンド型ハロゲン電球(A2a)の変形例(A2b)で、図２同
様封止用箔(10)を封止部(13)の内外に貫通させてある。
この場合も、前記同様封止部(13)の長さ(P2)が短くな
り、従ってハロゲン電球(A2b)の全長(S2b)も短くなる。
そして、前述同様封止部(13)のフィラメント封入部(8)
側部分において封止部(13)に歪みやクラックが発生せ
ず、封止部(13)での破損がより少なくなる。しかも、封
止部(13)全体が封止効果を持つため封止部(13)を最小の
長さにする事が出来る。FIG. 4 shows a modified example (A2b) of the single-ended halogen bulb (A2a) of the second embodiment according to the present invention, in which the sealing foil (10) is placed inside and outside the sealing portion (13) as in FIG. Have been penetrated.
In this case as well, the length (P2) of the sealing portion (13) is shortened as described above, and thus the total length (S2b) of the halogen bulb (A2b) is also shortened.
And, the filament enclosing part (8) of the sealing part (13) as described above.
No distortion or crack is generated in the sealing portion (13) in the side portion, and the damage in the sealing portion (13) is reduced. Moreover, since the entire sealing portion (13) has a sealing effect, the sealing portion (13) can have a minimum length.
【００２１】図５は、第１実施例(A1a)にかかるハロゲ
ン電球(A)を立てて一般白熱電球用のアウタバルブ(2)内
に設置した場合である。アウタバルブ(2)の螺子筒部取
付部(7)の内側にはステム(4)が一体的に取り付けてあ
り、外面側には従来のナス型一般白熱電球と同じサイズ
の螺子筒部(5)が接着されている。螺子筒部(5)の中央に
絶縁物(16)を介して配設された中央接点(17)と一方のス
テム側リード棒(14)とが接続され、前記螺子筒部(5)に
は他方のステム側リード棒(14)が接続されている。これ
により、従来のナス型一般白熱電球用ソケットにそのま
ま装着する事ができる。アウタバルブ(2)内の雰囲気は
特に限定されず、不活性ガスによる不活性雰囲気として
もよいし、加圧或いは減圧状態としてもよいし、又は空
気を充填してもよい。なお、アウターバルブ(2)内は点
灯中高温になり、しかも空気が内部に充満していてもモ
リブデン製の封止用箔(10)の封止部(13)内での酸化はな
い。故に、アウターバルブ(2)に取り付けたステム(4)の
排気管（図示せず）が不要のため（従来では、アウター
バルブ(2)内を不活性ガスで満たさねばならず、それゆ
え排気管が必要であった。）、製造方法が簡単になり、
コストダウンに繋がる。FIG. 5 shows a case where the halogen bulb (A) according to the first embodiment (A1a) is set up and installed in the outer bulb (2) for a general incandescent bulb. The stem (4) is integrally attached to the inner side of the screw tube mounting part (7) of the outer bulb (2), and the screw tube part (5) of the same size as the conventional eggplant type general incandescent light bulb is attached to the outer surface side. Are glued together. A central contact (17) arranged at the center of the screw cylinder part (5) via an insulator (16) and one stem side lead rod (14) are connected, and the screw cylinder part (5) is The other stem side lead rod (14) is connected. As a result, it can be directly attached to the conventional eggplant-type general incandescent bulb socket. The atmosphere in the outer valve (2) is not particularly limited, and may be an inert atmosphere with an inert gas, may be pressurized or depressurized, or may be filled with air. It should be noted that the temperature inside the outer bulb (2) becomes high during lighting, and even if the inside is filled with air, there is no oxidation in the sealing portion (13) of the molybdenum sealing foil (10). Therefore, the exhaust pipe (not shown) of the stem (4) attached to the outer valve (2) is unnecessary (in the past, the outer valve (2) had to be filled with an inert gas, and therefore the exhaust pipe). Was required.), The manufacturing method was simplified,
It leads to cost reduction.
【００２２】アウタバルブ(2)の材質はガラスでもよい
し樹脂でもよい。また、透明体でもよいし磨りガラス状
の半透明でもよい。また表面に凹凸を設けるなど、その
形状は特に限定されるものでなく前述のナス型を始めバ
ラエティに富んだ各種のものを採用する事ができる。The material of the outer bulb (2) may be glass or resin. Further, it may be a transparent body or a translucent ground glass. Further, the shape thereof is not particularly limited, for example, unevenness is provided on the surface, and various types such as the eggplant type described above can be adopted.
【００２３】前記ハロゲン電球(A1a)の封止用箔(10)の
外部延出部分(10a)は、前記ステム(4)から導出された一
対のリード棒(14)に溶接にて一体的に取り付けられてお
り、ハロゲン電球(A1a)(A1b)の保持の補強のために、リ
ード棒(14)に取着した保持具(9)にて封止部(13)を挟持
している。The outer extending portion (10a) of the sealing foil (10) of the halogen bulb (A1a) is integrally welded to the pair of lead rods (14) led out from the stem (4). It is attached, and in order to reinforce the holding of the halogen bulbs (A1a) (A1b), the sealing part (13) is held by the holding tool (9) attached to the lead rod (14).
【００２４】また、図５のようにハロゲン電球(A1a)の
周囲を囲繞するように防爆用部材(12)を配設してもよ
い。防爆用部材(12)は、例えば細いワイヤを編んだ筒状
網やパンチングメタルやラス網を筒状に丸めたものなど
が考えられる。この防爆用部材(12)は、一方のリード棒
(14)に直接又は間接的に固着されている。これによれ
ば、インナバルブであるハロゲン電球(A1a)がたとえ何
らかの理由で破裂したとしても防爆用部材(12)でその破
片の飛散を防止出来、破裂による２次的事故を防止する
事が出来る。Further, as shown in FIG. 5, an explosion-proof member (12) may be arranged so as to surround the halogen bulb (A1a). The explosion-proof member (12) may be, for example, a tubular net made by knitting a thin wire, a punching metal or a lath net rolled into a tubular shape. This explosion-proof member (12) is a lead rod on one side.
It is fixed to (14) directly or indirectly. According to this, even if the halogen bulb (A1a), which is the inner bulb, bursts for some reason, the explosion-proof member (12) can prevent the fragments from scattering and a secondary accident due to the bursting can be prevented.
【００２５】防爆用部材(12)の他の例としては図６のよ
うに封止部(13)全体を保護するような部材や、封止部(1
3)の全体及びフィラメント封入部(8)の両端の曲面部分
に塗着されたコーティング（図示せず）によって形成し
てもよい。以上は他のハロゲン電球(A1b)(A2a)(A2b)の
場合も同様である。As another example of the explosion-proof member (12), a member for protecting the entire sealing portion (13) as shown in FIG. 6 or the sealing portion (1
It may be formed by a coating (not shown) applied to the whole of 3) and the curved surface portions at both ends of the filament enclosing portion (8). The above is the same for the other halogen bulbs (A1b) (A2a) (A2b).
【００２６】また、図５のようなナス型のアウタバルブ
(2)の代わりに、図６のようなリフレクタ型のアウタバ
ルブ(2)を用い、ハロゲン電球(A1a)を横にして配設した
例である。勿論、ハロゲン電球(A1a)を立てて使用する
事も可能である事は言うまでもないし、ナス型アウタバ
ルブ(2)において、ハロゲン電球(A1a)を横にして使用す
る事も勿論可能である。その他、パー（シールドビー
ム）型を始め、色々な従来の白熱電球のアウターバルブ
(2)内に配置する事ができるものである。本発明にかか
るハロゲン電球(A1a)は前述のように従来例と比べて全
長が短いので、アウタバルブ(2)に立てて収納する事も
出来るし、横に収納する事も簡単である。この点はハロ
ゲン電球(A1b)(A2a)(A2b)も同様である。An eggplant type outer valve as shown in FIG.
This is an example in which a reflector type outer bulb (2) as shown in FIG. 6 is used instead of (2) and the halogen bulb (A1a) is arranged sideways. Of course, it goes without saying that the halogen bulb (A1a) can be set up and used, and it is of course possible to use the halogen bulb (A1a) sideways in the eggplant type outer bulb (2). In addition, the outer bulb of various conventional incandescent bulbs, including the par (shield beam) type
It can be placed in (2). Since the halogen bulb (A1a) according to the present invention has a shorter overall length as compared with the conventional example as described above, it can be stored upright on the outer bulb (2) or can be stored sideways. This point also applies to the halogen bulbs (A1b) (A2a) (A2b).
【００２７】図７はシングルエンド型ハロゲン電球(A2
a)を細長いアウタバルブ(2)に収納し、ハロゲン電球(A2
a)の頭部をバネ部材(3)で固定した例である。勿論、ナ
ス型のアウタバルブ(2)やシールドビーム型アウタバル
ブ(2a)にシングルエンド型ハロゲン電球(A2a)(A2b)を収
納する事も可能である。なお、図７において、(15)はハ
ロゲン電球(A2a)『(A2b)の場合も同様』を取り付けるた
めのセラミックマウントであり、(16)は防爆用のヒュー
ズである。FIG. 7 shows a single-ended halogen bulb (A2
a) in the slender outer bulb (2), and then the halogen bulb (A2
This is an example in which the head of a) is fixed by a spring member (3). Of course, it is also possible to store the single-ended halogen bulbs (A2a) (A2b) in the eggplant type outer bulb (2) and the shield beam type outer bulb (2a). In FIG. 7, (15) is a ceramic mount for mounting a halogen bulb (A2a) "same in case of (A2b)", and (16) is an explosion-proof fuse.
【００２８】図８は、図１のダブルエンドタイプのハロ
ゲン電球(A1a)の封体(1)の両端(1a)(1b)を残して用いた
例である。勿論、図の場合端部(1a)を切除したものを使
用する事も可能である。FIG. 8 shows an example in which both ends (1a) and (1b) of the double-end type halogen bulb (A1a) shown in FIG. 1 are left. Of course, in the case of the figure, it is also possible to use the one with the end portion (1a) cut off.
【００２９】[0029]
【発明の効果】本発明のハロゲン電球によれば、封止部
内にその一部が埋設され封止用箔が封止部から外方に突
出しているので、封止部の端部から封止用箔の埋設部分
が封止部に完全に密着して、従来のような間隙が形成さ
れず、その結果封止用箔に熱がかかっても封止用箔の酸
化が発生せず、封止部との剥離が生じない。その結果、
封止部におけるリークを防止する事が出来、ハロゲン電
球の長寿命化を達成出来る。また、封止用箔は薄い平坦
な部材であるから、封止部との密着部分に大きな歪みを
生じさせる事がなく、クラック発生の原因になる事もな
い。更に、従来のハロゲン電球のように外部リード棒の
封止部に対する埋設代が不要となるので、その分だけ封
止部を短くすることが出来、ハロゲン電球の全長をより
短くする事が出来る。また、封止部に封止用箔を貫通さ
せる場合には、封止部全長が封止効果を発揮するので、
封止部の全長を最も短くする事が出来るだけでなく、封
止部に発生するクラックや歪みも最小限にする事か出
来、封止部での破損を極めて少なくする事が出来る。ま
た、封止用箔は、封止部内で酸化するというような事が
ないので、そのままで使用する場合は勿論、アウタバル
ブ内に収納して使用する場合でもアウタバルブ内の雰囲
気を特に不活性雰囲気や減圧状態にする必要がなく、自
由に富んだ形状のアウタバルブを選択し得る。According to the halogen bulb of the present invention, since a part of the halogen bulb is embedded in the sealing portion and the sealing foil projects outward from the sealing portion, the sealing is performed from the end of the sealing portion. The embedded portion of the sealing foil completely adheres to the sealing portion, and a gap unlike the conventional case is not formed. As a result, even if the sealing foil is heated, the sealing foil is not oxidized and the sealing is prevented. No peeling from the stop. as a result,
It is possible to prevent leaks in the sealing part and achieve a long life of the halogen bulb. Further, since the sealing foil is a thin and flat member, it does not cause a large distortion in the contact portion with the sealing portion and does not cause a crack. Further, unlike the conventional halogen bulb, there is no need to bury the external lead rod in the sealing portion, so that the sealing portion can be shortened accordingly, and the total length of the halogen bulb can be further shortened. Further, when the sealing foil is passed through the sealing portion, the entire sealing portion exerts a sealing effect,
Not only can the overall length of the sealing portion be minimized, but also cracks and distortions that occur in the sealing portion can be minimized, and damage to the sealing portion can be extremely reduced. In addition, since the sealing foil does not oxidize in the sealing portion, the atmosphere inside the outer valve is particularly inert when it is used as it is or stored in the outer valve. It is not necessary to reduce the pressure, and an outer valve with a freely rich shape can be selected.
【図１】本発明にかかるダブルエンド型ハロゲン電球の
第１実施例の正断面図FIG. 1 is a front sectional view of a first embodiment of a double-ended halogen light bulb according to the present invention.
【図２】図１の変形例の正断面図FIG. 2 is a front sectional view of a modified example of FIG.
【図３】本発明にかかるシングルエンド型ハロゲン電球
の正断面図FIG. 3 is a front sectional view of a single-ended halogen light bulb according to the present invention.
【図４】本発明にかかるシングルエンド型ハロゲン電球
の他の例の正断面図FIG. 4 is a front sectional view of another example of the single-ended halogen light bulb according to the present invention.
【図５】本発明のダブルエンド型ハロゲン電球をナス型
アウタバルブに収納した場合の一部切欠斜視図FIG. 5 is a partially cutaway perspective view of the double-ended halogen bulb of the present invention housed in an eggplant-shaped outer bulb.
【図６】本発明のダブルエンド型ハロゲン電球をシール
ドビーム型アウタバルブに収納した場合の一部切欠斜視
図FIG. 6 is a partially cutaway perspective view of the double-ended halogen bulb of the present invention housed in a shield beam outer bulb.
【図７】本発明のシングルエンド型ハロゲン電球を細長
いアウタバルブに収納した場合の断面図FIG. 7 is a sectional view of the single-ended halogen bulb of the present invention housed in an elongated outer bulb.
【図８】本発明の封体の両端部分を残したダブルエンド
型ハロゲン電球を細長いアウタバルブに収納した場合の
断面図FIG. 8 is a cross-sectional view of a double-ended halogen bulb in which both end portions of the envelope of the present invention are left, stored in an elongated outer bulb.
【図９】従来のハロゲン電球の断面図FIG. 9 is a sectional view of a conventional halogen bulb.
【図１０】図８の封止部の拡大断面図10 is an enlarged cross-sectional view of the sealing portion of FIG.
(A)…ハロゲン電球 (A1a)(A1b)…ダブルエンド型ハロゲン電球の第１実施例
とその他の例 (A2a)(A2b)…シングルエンド型ハロゲン電球の第２実施
例とその他の例 (L1)…密着部分 (H1)…封止用箔の全長 (P1)…封止部全体の長さ (S1a)(S1b)(S2a)(S2b)…ハロゲン電球の全長 (1)…封体 (2)…アウタバルブ (3)…バネ部材 (4)…ステム (5)…螺子筒部 (6)…フィラメント (7)…螺子筒部取付部 (8)…フィラメント封入部 (9)…保持具 (10)…封止用箔 (11)…外部リード棒 (12)…防爆部材 (13)…封止部 (14)…リード棒(A) ... Halogen light bulb (A1a) (A1b) ... First embodiment of double-ended halogen light bulb and other examples (A2a) (A2b) ... Second embodiment of single-ended halogen light bulb and other examples (L1) ) ... Adhesive part (H1) ... Entire foil length (P1) ... Entire portion length (S1a) (S1b) (S2a) (S2b) ... Halogen bulb total length (1) ... Enclosure (2 )… Outer valve (3)… Spring member (4)… Stem (5)… Screw cylinder (6)… Filament (7)… Screw cylinder mounting part (8)… Filament enclosing part (9)… Holder (10) )… Encapsulation foil (11)… External lead rod (12)… Explosion-proof member (13)… Encapsulation part (14)… Lead rod
Claims (2)
内に封止用箔の一部が埋設され、その残部が封止部から
外方に突出しており、封体内に収納されているフィラメ
ントの端部が封止用箔に接続されている事を特徴とする
ハロゲン電球。1. A sealing part is formed in a sealing body, a part of a sealing foil is embedded in the sealing part, and the remaining part of the sealing foil projects outward from the sealing part and is stored in the sealing body. A halogen bulb characterized in that the end of the filament is connected to the sealing foil.
内にその一部が埋設され、その一端部が封止部から外方
に突出しており、その他端部が封体内に突出していて、
封体内に突出している封止用箔の他端部に封体内に収納
されているフィラメントの端部が接続されている事を特
徴とするハロゲン電球。2. A sealing part is formed on the sealing body, a part of which is embedded in the sealing part, one end of which projects outward from the sealing part, and the other end of which projects into the sealing body. hand,
A halogen light bulb characterized in that an end of a filament contained in the envelope is connected to the other end of a sealing foil protruding into the envelope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15311496A JP4194122B2 (en) | 1996-05-23 | 1996-05-23 | External lead structure of halogen bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15311496A JP4194122B2 (en) | 1996-05-23 | 1996-05-23 | External lead structure of halogen bulb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09320546A true JPH09320546A (en) | 1997-12-12 |
| JP4194122B2 JP4194122B2 (en) | 2008-12-10 |
Family
ID=15555284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15311496A Expired - Lifetime JP4194122B2 (en) | 1996-05-23 | 1996-05-23 | External lead structure of halogen bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4194122B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1563524A2 (en) * | 2002-11-07 | 2005-08-17 | Advanced Lighting Technologies, Inc. | Oxidation-protected metallic foil in methods |
| CN101419900A (en) * | 2007-10-24 | 2009-04-29 | 哈利盛东芝照明公司 | Halogen lamp |
| WO2010000327A1 (en) * | 2008-07-04 | 2010-01-07 | Osram Gesellschaft mit beschränkter Haftung | Electric lamp and method for producing an electric lamp |
| US8277274B2 (en) | 2002-11-07 | 2012-10-02 | Advanced Lighting Technologies, Inc. | Apparatus and methods for use of refractory abhesives in protection of metallic foils and leads |
-
1996
- 1996-05-23 JP JP15311496A patent/JP4194122B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1563524A2 (en) * | 2002-11-07 | 2005-08-17 | Advanced Lighting Technologies, Inc. | Oxidation-protected metallic foil in methods |
| EP1563524A4 (en) * | 2002-11-07 | 2008-12-10 | Advanced Lighting Tech Inc | Oxidation-protected metallic foil in methods |
| US8264147B2 (en) | 2002-11-07 | 2012-09-11 | Advanced Lighting Technologies, Inc. | Oxidation-protected metallic foil and methods |
| US8277274B2 (en) | 2002-11-07 | 2012-10-02 | Advanced Lighting Technologies, Inc. | Apparatus and methods for use of refractory abhesives in protection of metallic foils and leads |
| CN101419900A (en) * | 2007-10-24 | 2009-04-29 | 哈利盛东芝照明公司 | Halogen lamp |
| WO2010000327A1 (en) * | 2008-07-04 | 2010-01-07 | Osram Gesellschaft mit beschränkter Haftung | Electric lamp and method for producing an electric lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4194122B2 (en) | 2008-12-10 |
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