JPH087848A - Incandescent light bulb - Google Patents
Incandescent light bulbInfo
- Publication number
- JPH087848A JPH087848A JP6135627A JP13562794A JPH087848A JP H087848 A JPH087848 A JP H087848A JP 6135627 A JP6135627 A JP 6135627A JP 13562794 A JP13562794 A JP 13562794A JP H087848 A JPH087848 A JP H087848A
- Authority
- JP
- Japan
- Prior art keywords
- glass tube
- thin plate
- molybdenum
- molybdenum thin
- lead wire
- 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
Landscapes
- Resistance Heating (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
(57)【要約】
【目的】 モリブデン薄板シール構造の白熱電球に関す
るもので、多湿な状態で点灯しても、水分によりモリブ
デン薄板やモリブデン線が酸化され難い白熱電球の具体
構成を提供する。
【構成】 石英ガラス管１内に挿入されたフィラメント
６の端部リード線５をモリブデン薄板３に接続し、その
モリブデン薄板３にモリブデンよりなる外部リード線４
を接続し、端部にガラス管部７が残存するように前記モ
リブデン薄板３の部分で前記石英ガラス管１を押し潰し
て、前記フィラメント６を前記ガラス管１内に封入し、
端部に残存する前記ガラス管部７にパラフィン材８を、
耐熱性の弾性変形可能なシリコーンゴム９により封じ込
めたことを特徴とする。
(57) [Summary] [Object] The present invention relates to an incandescent light bulb having a sealed molybdenum thin plate structure, and provides a specific configuration of the incandescent light bulb in which the molybdenum thin plate and the molybdenum wire are difficult to be oxidized by moisture even when the lamp is lit in a humid condition. [Structure] An end lead wire 5 of a filament 6 inserted in a quartz glass tube 1 is connected to a molybdenum thin plate 3, and the molybdenum thin plate 3 is provided with an external lead wire 4 made of molybdenum.
, The quartz glass tube 1 is crushed by the portion of the molybdenum thin plate 3 so that the glass tube portion 7 remains at the end, and the filament 6 is enclosed in the glass tube 1.
Paraffin material 8 is added to the glass tube portion 7 remaining at the end,
It is characterized in that it is enclosed by a heat-resistant elastically deformable silicone rubber 9.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、モリブデン薄板シール
構造の白熱電球に関し、モリブデン薄板が空気、水分に
より酸化されるのを防止する構成に特徴を有するもの
で、特に冷蔵庫の霜取り用の熱源として最適な白熱電球
の具体構成を提供するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incandescent lamp having a molybdenum thin plate sealing structure, which is characterized by a structure for preventing the molybdenum thin plate from being oxidized by air and moisture, and particularly as a heat source for defrosting a refrigerator. It is intended to provide an optimal incandescent light bulb configuration.
【０００２】[0002]
【従来の技術】モリブデン薄板シール構造の白熱電球
は、石英ガラス管内に挿入されたタングステンフィラメ
ントの端部リード線をモリブデン薄板に接続し、そのモ
リブデン薄板にモリブデンよりなる外部リード線を接続
し、前記モリブデン薄板の部分で前記石英ガラス管を押
し潰して、前記フィラメントを前記ガラス管内に封入し
ている。2. Description of the Related Art An incandescent lamp having a molybdenum thin plate sealing structure is constructed by connecting an end lead wire of a tungsten filament inserted in a quartz glass tube to a molybdenum thin plate and connecting an outer lead wire made of molybdenum to the molybdenum thin plate. The quartz glass tube is crushed by the portion of the molybdenum thin plate, and the filament is enclosed in the glass tube.
【０００３】しかし、外部リード線と石英ガラスとの界
面には、微小な隙間が形成されるため、点灯時にこの微
小な隙間から侵入した空気や水分によりモリブデンから
なる外部リード線およびモリブデン薄板が酸化劣化しや
すいという問題があった。また、この微小な隙間から侵
入した空気や水分によりモリブデンからなる外部リード
線とモリブデン薄板の酸化膨脹により封口部の石英ガラ
スが破損するという問題があった。そこで、従来におい
ては、低融点ガラスを外部リード線と石英ガラスとの界
面に形成されていた微小な隙間に充填していた。However, since a minute gap is formed at the interface between the external lead wire and the silica glass, the external lead wire made of molybdenum and the molybdenum thin plate are oxidized by the air and moisture that have entered through the minute gap at the time of lighting. There was a problem that it was easy to deteriorate. Further, there is a problem that the quartz glass in the sealing portion is damaged due to the oxidative expansion of the external lead wire made of molybdenum and the molybdenum thin plate due to the air and the water entering through the minute gap. Therefore, conventionally, a low melting point glass has been filled in a minute gap formed at the interface between the external lead wire and the quartz glass.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、モリブ
デンと石英ガラスの熱膨脹係数差は約１０倍あり、外部
リード線と石英ガラスとの界面に形成されてた微小な隙
間に充填した低融点ガラスには多数のヒビが生じるため
に、高温多湿な環境下や長期間の間には、モリブデンか
らなる外部リード線とモリブデン薄板が酸化劣化し、ひ
いては封口部の石英ガラスが破損するという問題が依然
として存在していた。本発明は、高温多湿な環境下や長
時間の使用の間にも、外部リード線やモリブデン薄板の
酸化劣化の少ない白熱電球を提供することを目的とす
る。However, the difference in coefficient of thermal expansion between molybdenum and quartz glass is about 10 times, and low melting point glass filled in a minute gap formed at the interface between the external lead wire and quartz glass Since many cracks occur, the external lead wire made of molybdenum and the molybdenum thin plate are oxidatively deteriorated in a hot and humid environment or for a long period of time, and there is still a problem that the quartz glass in the sealing part is damaged. Was there. It is an object of the present invention to provide an incandescent light bulb with less oxidative deterioration of external lead wires and molybdenum thin plates even in a hot and humid environment or during long-term use.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するた
め、本発明の白熱電球は、ガラス管内に挿入されたフィ
ラメントの端部リード線をモリブデン薄板に接続し、そ
のモリブデン薄板に外部リード線を接続し、端部にガラ
ス管部が残存するように前記モリブデン薄板の部分で前
記ガラス管を押し潰して、前記フィラメントを前記ガラ
ス管内に封入し、端部に残存する前記ガラス管部に、パ
ラフィン材を充填したことを特徴とする。In order to achieve this object, an incandescent lamp of the present invention is to connect an end lead wire of a filament inserted in a glass tube to a molybdenum thin plate, and connect the molybdenum thin plate with an external lead wire. Connect, crush the glass tube with the portion of the molybdenum thin plate so that the glass tube portion remains at the end, encapsulate the filament in the glass tube, the glass tube portion remaining at the end, paraffin It is characterized by being filled with material.
【０００６】[0006]
【作用】上記構成の白熱電球は、モリブデン薄板や外部
リード線が加熱され水分により酸化しやすい状態の点灯
時には、フィラメントの熱でパラフィン材が溶融状態と
なり、空気と水分をより完全な形で遮断し、モリブデン
からなる外部リード線とモリブデン薄板の酸化劣化を阻
止するものである。[Function] The incandescent light bulb with the above-mentioned structure, when the molybdenum thin plate or the external lead wire is heated and is easily oxidized by moisture, the paraffin material is melted by the heat of the filament and shuts off air and moisture in a more complete form. However, the outer lead wire made of molybdenum and the molybdenum thin plate are prevented from oxidative deterioration.
【０００７】[0007]
【実施例】以下本発明の実施例について、図面を参照し
ながら説明する。図１は本発明に係わる白熱電球の一実
施例の要部を示す一部切欠側面図であり、１は石英ガラ
ス管よりなる封体であり、その中には一端の端部リード
線５がモリブデン薄板３に接続されたフィラメント６が
挿入されており、このモリブデン薄板３には、電球外部
側に接続される外部リード線４が接続されている。この
外部リード線４はモリブデン薄板３との接続部分近傍は
モリブデンで構成され、途中よりニツケル線となってい
る。そして前記モリブデン薄板３および外部リード線４
のモリブデン部分で前記ガラス管１を押し潰し、前記フ
ィラメント６をガラス管１内に封入している。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway side view showing an essential part of an embodiment of an incandescent lamp according to the present invention. Reference numeral 1 is a sealing body made of a quartz glass tube in which an end lead wire 5 at one end is provided. The filament 6 connected to the molybdenum thin plate 3 is inserted, and the molybdenum thin plate 3 is connected to the external lead wire 4 connected to the outside of the light bulb. The external lead wire 4 is made of molybdenum in the vicinity of the connection portion with the molybdenum thin plate 3, and is a nickel wire from the middle. And the molybdenum thin plate 3 and the external lead wire 4
The glass tube 1 is crushed by the molybdenum portion of the above, and the filament 6 is enclosed in the glass tube 1.
【０００８】以上の構成は、従来のこの種白熱電球と同
一である。本実施例の特徴は、前記の押し潰した封口部
分２の端部に一部ガラス管部７が残存するように押し潰
し、そして、その端部に残存するガラス管部７にパラフ
ィン材８を充填し、そのパラフィン材８を耐熱性で、弾
性のあるシリコーンゴム９で前記ガラス管部７に封じ込
めた点にある。なお、この封口部２の端部に残存するガ
ラス管部７の底面は、球曲面状に形成されており、パラ
フィン材８を充填する際に空気泡がこの底面部に付着す
ることが軽減されるように構成されている。The above construction is the same as the conventional incandescent lamp of this kind. The feature of this embodiment is that the crushed sealing portion 2 is crushed so that a part of the glass tube portion 7 remains at the end portion, and the paraffin material 8 is applied to the glass tube portion 7 remaining at the end portion. The point is that the paraffin material 8 is filled and sealed in the glass tube portion 7 with a heat-resistant and elastic silicone rubber 9. The bottom surface of the glass tube portion 7 remaining at the end portion of the sealing portion 2 is formed into a spherical curved surface, and air bubbles are prevented from adhering to the bottom portion when the paraffin material 8 is filled. Is configured to.
【０００９】以上のように構成された白熱電球は、モリ
ブデン薄板や外部リード線のモリブデン部が加熱され空
気や水分により酸化しやすい状態の点灯時には、フィラ
メントの熱でパラフィン材が溶融し、空気と水分を遮断
し、モリブデンからなる外部リード線とモリブデン薄板
の酸化劣化を阻止するものである。In the incandescent light bulb constructed as described above, when the molybdenum thin plate or the molybdenum portion of the external lead wire is heated and easily oxidized by air or moisture, the paraffin material is melted by the heat of the filament and becomes It blocks moisture and prevents oxidative deterioration of the molybdenum external lead wire and molybdenum thin plate.
【００１０】従って、この白熱電球を冷蔵庫の霜取り用
熱源として利用した場合、霜取り動作時に点灯される
と、フィラメント６の熱でパラフィン材８が溶融し、高
温で酸化しやすいモリブデンからなる外部リード線４と
モリブデン薄板３の酸化防止を果たしている。また、点
灯時のフィラメント６の熱でパラフィン材８の溶融膨脹
を弾性変形可能なシリコーンゴム９により封じ込めるこ
とにより、図２に示すようにシリコーンゴム９が変形し
てその流出を防いでいる。Therefore, when this incandescent lamp is used as a heat source for defrosting a refrigerator, the paraffin material 8 is melted by the heat of the filament 6 when it is turned on during the defrosting operation, and the external lead wire made of molybdenum, which is easily oxidized at high temperature. 4 and the molybdenum thin plate 3 are protected against oxidation. Further, the expansion of the paraffin material 8 due to the heat of the filament 6 at the time of lighting is contained by the elastically deformable silicone rubber 9, so that the silicone rubber 9 is deformed as shown in FIG. 2 and its outflow is prevented.
【００１１】[0011]
【発明の効果】以上のように本発明は、封口部の端部に
存在するガラス管部にパラフィン材を充填、封じ込めた
ことにより、耐酸化性が向上し、高温多湿な環境下でも
使用できる優れた白熱電球を実現できるものである。INDUSTRIAL APPLICABILITY As described above, according to the present invention, the glass tube portion existing at the end of the sealing portion is filled with and sealed with the paraffin material, so that the oxidation resistance is improved and it can be used even in a hot and humid environment. It is possible to realize an excellent incandescent light bulb.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の実施例における白熱電球の非点灯状態
の要部を示す一部切欠側面図FIG. 1 is a partially cutaway side view showing a main part of an incandescent light bulb in a non-lighted state according to an embodiment of the present invention.
【図２】同実施例における白熱電球の点灯状態の要部を
示す一部切欠側面図FIG. 2 is a partially cutaway side view showing a main part of an incandescent light bulb in a lighting state according to the embodiment.
１ 石英ガラス管 ３ モリブデン薄板 ４ 外部リード線 ６ フィラメント ８ パラフィン材 ９ シリコーンゴム 1 Quartz glass tube 3 Molybdenum thin plate 4 External lead wire 6 Filament 8 Paraffin material 9 Silicone rubber
Claims (3)
部リード線をモリブデン薄板に接続し、そのモリブデン
薄板に外部リード線を接続し、端部にガラス管部が残存
するように前記モリブデン薄板の部分で前記ガラス管を
押し潰して、前記フィラメントを前記ガラス管内に封入
し、端部に残存する前記ガラス管部にパラフィン材を封
じ込めたことを特徴とする白熱電球。1. An end lead wire of a filament inserted in a glass tube is connected to a molybdenum thin plate, an external lead wire is connected to the molybdenum thin plate, and the molybdenum thin plate of the molybdenum thin plate is connected so that the glass tube portion remains at the end. An incandescent light bulb characterized in that the glass tube is crushed at a portion, the filament is enclosed in the glass tube, and a paraffin material is enclosed in the glass tube portion remaining at the end.
を弾性変形可能なシリコーンゴムにより封じ込めたこと
を特徴とする請求項１に記載の白熱電球。2. The incandescent lamp according to claim 1, wherein the paraffin material of the glass tube portion remaining at the end is enclosed by elastically deformable silicone rubber.
に構成されていることを特徴とする請求項１に記載の白
熱電球。3. The incandescent light bulb according to claim 1, wherein the bottom surface of the glass tube portion existing at the end portion is formed into a spherical curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13562794A JP3259523B2 (en) | 1994-06-17 | 1994-06-17 | Incandescent light bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13562794A JP3259523B2 (en) | 1994-06-17 | 1994-06-17 | Incandescent light bulb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH087848A true JPH087848A (en) | 1996-01-12 |
| JP3259523B2 JP3259523B2 (en) | 2002-02-25 |
Family
ID=15156230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13562794A Expired - Fee Related JP3259523B2 (en) | 1994-06-17 | 1994-06-17 | Incandescent light bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3259523B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997040521A1 (en) * | 1996-04-24 | 1997-10-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electric lamp |
-
1994
- 1994-06-17 JP JP13562794A patent/JP3259523B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997040521A1 (en) * | 1996-04-24 | 1997-10-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electric lamp |
| US6005336A (en) * | 1996-04-24 | 1999-12-21 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Electric vehicle lamp with inserted insulation plug |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3259523B2 (en) | 2002-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |