JPH049731Y2 - - Google Patents
Info
- Publication number
- JPH049731Y2 JPH049731Y2 JP19854986U JP19854986U JPH049731Y2 JP H049731 Y2 JPH049731 Y2 JP H049731Y2 JP 19854986 U JP19854986 U JP 19854986U JP 19854986 U JP19854986 U JP 19854986U JP H049731 Y2 JPH049731 Y2 JP H049731Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- lead wire
- shrinkable tube
- cylindrical base
- resistant heat
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 51
- 238000007789 sealing Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 238000012360 testing method Methods 0.000 description 14
- 230000007613 environmental effect Effects 0.000 description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、自動車環境試験装置などに使用され
るリード線付白熱電球に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an incandescent light bulb with a lead wire used in automobile environmental testing equipment and the like.
自動車はいろいろな環境下で使用されるため、
これらの環境を自動車環境試験装置によつて人工
的に作り出し、車体の塗膜などの耐久試験や各種
の性能試験が実施される。この自動車環境試験装
置は、高温の環境を作り出すために、多数の白熱
電球がその内壁に配設されるが、一つの環境試験
装置によつてできるだけ多数の異なつた環境を作
り出すために、散水装置や冷却装置などを同時に
環境試験装置に取付けて汎用性を持たせている。
従つて、自動車環境試験装置に取付けられた白熱
電球は水滴を被りやすく、また、低温試験時には
−30℃もの低温に曝されるなどの過酷な条件下で
使用される。
Because cars are used in a variety of environments,
These environments are artificially created using automotive environmental testing equipment, and durability tests on car body paint films and various performance tests are conducted. This automotive environmental testing device has a large number of incandescent light bulbs installed on its inner wall to create a high-temperature environment, and a water sprinkler system to create as many different environments as possible with one environmental testing device. and a cooling device, etc., are attached to the environmental test equipment at the same time to provide versatility.
Therefore, incandescent light bulbs installed in automotive environmental test equipment are easily covered with water droplets and are used under harsh conditions, such as being exposed to temperatures as low as -30°C during low-temperature tests.
ところで、リード線付の管形白熱電球は、フイ
ラメントコイルと電気的に接続されたリード棒が
管形封体の両端に形成された圧着封止部を気密に
貫通して外方に伸び、圧着封止部に取付けられた
筒状ベース内で、このリード棒にリード線が溶接
され、このリード線が筒状ベースから伸び出して
電源に接続されている。かかる構造のリード線付
白熱電球を自動車環境試験装置に取付けて使用す
るとき、白熱電球が水を被つて水滴が筒状ベース
内に侵入しやすく、このリード棒とリード線の溶
接部分などに水滴が付着すると、ステム部の溶接
部分などが酸化されて断線しやすく、白熱電球の
寿命が著しく短くなつてしまう。また、白熱電球
が低温に曝されたときに、筒状ベース内壁とリー
ド線の小さい隙間に滞留する水が凝固して膨張
し、筒状ベースを破損してしまう恐れがある。 By the way, in a tubular incandescent light bulb with a lead wire, the lead rod, which is electrically connected to the filament coil, passes through the crimp-sealed portions formed at both ends of the tubular enclosure in an airtight manner and extends outward. A lead wire is welded to this lead rod within a cylindrical base attached to the sealing portion, and this lead wire extends from the cylindrical base and is connected to a power source. When an incandescent light bulb with a lead wire having such a structure is installed in an automotive environmental test equipment, the incandescent light bulb is covered with water and water droplets tend to enter the cylindrical base, causing water droplets to form on the welded part between the lead rod and the lead wire. If this occurs, the welded parts of the stem become oxidized and easily break, significantly shortening the life of the incandescent light bulb. Furthermore, when the incandescent light bulb is exposed to low temperatures, water that remains in the small gap between the inner wall of the cylindrical base and the lead wire may solidify and expand, potentially damaging the cylindrical base.
そこで本考案は、水滴がベース内に侵入せず、
リード棒とリード線の溶接部分などにも水滴が付
着することがなくて自動車環境試験装置などに適
したリード線付白熱電球を提供することを目的と
する。
Therefore, the present invention prevents water droplets from entering the base.
To provide an incandescent light bulb with a lead wire, which does not allow water droplets to adhere to the welded part between the lead rod and the lead wire, and is suitable for an automobile environmental test device.
本考案のリード線付白熱電球は、フイラメント
コイルが管軸に沿つて配置された管形封体の両端
に形成された圧着封止部を気密に貫通して外方に
伸び、フイラメントコイルと電気的に接続された
リード棒と、このリード棒と接続された被覆部付
リード線と、前記圧着封止部の先端縁からリード
線の被覆部にかけて覆う第１の耐熱性熱収縮チユ
ーブと、一端部に前記圧着封止部が嵌め込まれて
接着され、他端部から前記第１の耐熱性熱収縮チ
ユーブが突出するように取付けられた筒状ベース
と、この筒状ベースの他端部から前記第１の耐熱
性熱収縮チユーブにかけて覆う第２の耐熱性熱収
縮チユーブとよりなることを特徴とするものであ
る。
In the incandescent light bulb with a lead wire of the present invention, the filament coil extends outward through airtight crimp seals formed at both ends of a tubular enclosure disposed along the tube axis, and the filament coil and electrical a lead rod connected to the lead wire; a lead wire with a sheathing portion connected to the lead rod; a first heat-resistant heat-shrinkable tube that covers from the tip edge of the crimp sealing portion to the sheathing portion of the lead wire; a cylindrical base in which the crimp sealing part is fitted and bonded, and the first heat-resistant heat-shrinkable tube is attached so as to protrude from the other end; It is characterized by comprising a second heat-resistant heat-shrinkable tube that covers the first heat-resistant heat-shrinkable tube.
すなわち、先ず、筒状ベース内でリード棒およ
び被覆部付リード線とを両者の溶接部分を含めて
第１の耐熱性熱収縮チユーブで覆い、更に、筒状
ベースと、筒状ベースから突出した第１の耐熱性
熱収縮チユーブとを第２の耐熱性熱収縮チユーブ
で覆うようにしたので、水滴は筒状ベース内に侵
入せず、とりわけリード棒と被覆部付リード線と
の溶接部分に水滴が付着することを完全に防止す
ることができる。 That is, first, the lead rod and the lead wire with the sheathed portion, including the welded portions thereof, were covered with a first heat-resistant heat-shrinkable tube within the cylindrical base, and then the cylindrical base and the lead wire with the sheathed portion protruding from the cylindrical base were covered with a first heat-resistant heat-shrinkable tube. Since the first heat-resistant heat-shrinkable tube is covered with the second heat-resistant heat-shrinkable tube, water droplets do not enter into the cylindrical base, especially at the welded part between the lead rod and the covered lead wire. It is possible to completely prevent water droplets from adhering.
以下に図面に示す実施例に基いて本考案を具体
的に説明する。
The present invention will be specifically described below based on embodiments shown in the drawings.
図面は、定格が200V，2KWのリード線付白熱
電球の片側の腰部断面図であるが、石英ガラスか
らなる管形封体１の両端に偏平な圧着封止部１ａ
が形成されている。封体１の管軸に沿つてフイラ
メントコイル２が配置され、フイラメントコイル
２の端部が、圧着封止部１ａに気密に埋設された
モリブデン箔３に溶接されている。そして、リー
ド棒４の端部もモリブデン箔３に溶接され、圧着
封止部１ａから外方に伸びている。圧着封止部１
ａは、セラミツク製の筒状ベース７の一端側７ａ
に嵌め込まれ、接着剤７１にて固定されている。
従つて、一端側７ａからは筒状ベース７内部に水
が侵入しないようになつている。リード棒４の先
端は、シリコンゴムの被覆部５で被覆されたリー
ド線６の一端と溶接されており、リード線６の終
端は電源に接続される。 The drawing is a cross-sectional view of one side of the waist of an incandescent light bulb with a lead wire rated at 200V and 2KW, and shows flat crimp sealing parts 1a at both ends of a tubular sealing body 1 made of quartz glass.
is formed. A filament coil 2 is arranged along the tube axis of the sealing body 1, and the end of the filament coil 2 is welded to a molybdenum foil 3 that is hermetically embedded in the crimp sealing part 1a. The end of the lead rod 4 is also welded to the molybdenum foil 3 and extends outward from the crimp sealing portion 1a. Crimp sealing part 1
a is one end side 7a of the ceramic cylindrical base 7;
It is fitted in and fixed with adhesive 71.
Therefore, water is prevented from entering into the cylindrical base 7 from the one end side 7a. The tip of the lead rod 4 is welded to one end of a lead wire 6 covered with a silicone rubber coating 5, and the terminal end of the lead wire 6 is connected to a power source.
次に、圧着封止部１ａの先端縁から、筒状ベー
ス７の他端側７ｂから突出している被覆部５にか
けてシリコン樹脂製の第１の耐熱性熱収縮チユー
ブ８が被せられ、加熱されて収縮し、液密状態で
これらを覆つている。従つて、リード線６とリー
ド棒４の溶接部分もこの第１の耐熱性熱収縮チユ
ーブ８で覆われている。そして、筒状ベース７の
他端側７ｂから第１の耐熱性熱収縮チユーブ８に
かけて、同じくシリコン樹脂からなる第２の耐熱
性熱収縮チユーブ９が被せられ、加熱されて収縮
し、液密状態でこれらを覆つている。 Next, a first heat-resistant heat-shrinkable tube 8 made of silicone resin is placed over the tip edge of the crimp-sealed portion 1a and the covering portion 5 protruding from the other end side 7b of the cylindrical base 7, and heated. It contracts and covers them in a fluid-tight manner. Therefore, the welded portion between the lead wire 6 and the lead rod 4 is also covered with this first heat-resistant heat-shrinkable tube 8. Then, a second heat-resistant heat-shrinkable tube 9 made of silicone resin is placed over the other end 7b of the cylindrical base 7 and the first heat-resistant heat-shrinkable tube 8, and is heated and shrunk to form a liquid-tight state. covers these.
しかして、かかる構成のリード線付白熱電球を
自動車環境試験装置に取付けて使用すれば、この
白熱電球は水を被る。しかし、リード線６とリー
ド棒４の溶接部分が第１の耐熱性熱収縮チユーブ
８で液密状態で覆われているので、酸化しやすい
金属部分に水滴は付着しない。また、第１の耐熱
性熱収縮チユーブ８と筒状ベース７の内壁との間
に、どうしても僅かな隙間ができるが、筒状ベー
ス７の他端側７ｂから第１の耐熱性熱収縮チユー
ブ８にかけて、同じくシリコン樹脂からなる第２
の耐熱性熱収縮チユーブ９が被せられ、液密状態
でこれらを覆つているので、筒状ベース７内に水
は侵入せず、小さい隙間に滞留する水が低温試験
時に凝固して膨張し、ベースを破損する危険が防
止出来るのみでなく、リード線６とリード棒４の
溶接部分も、より確実に水滴から保護される。更
には、これらのチユーブ８，９は耐熱性の高いも
のであるため、高温試験時にも十分な耐久性を有
する。従つて、過酷な条件下で使用されるにもか
かわらず、寿命の長いリード線付白熱電球とする
ことができる。 However, if an incandescent light bulb with a lead wire having such a configuration is used by being attached to an automobile environmental testing device, the incandescent light bulb will be exposed to water. However, since the welded portion between the lead wire 6 and the lead rod 4 is covered in a liquid-tight manner with the first heat-resistant heat-shrinkable tube 8, water droplets do not adhere to the metal portion that is easily oxidized. Also, although there is inevitably a slight gap between the first heat-resistant heat-shrinkable tube 8 and the inner wall of the cylindrical base 7, the first heat-resistant heat-shrinkable tube 8 is inserted from the other end side 7b of the cylindrical base 7. Then, a second layer also made of silicone resin is applied.
Since the heat-resistant heat-shrinkable tube 9 is placed over these tubes in a liquid-tight manner, water does not enter the cylindrical base 7, and the water that remains in the small gap solidifies and expands during the low-temperature test. Not only can the risk of damaging the base be prevented, but also the welded portion between the lead wire 6 and the lead rod 4 can be more reliably protected from water droplets. Furthermore, since these tubes 8 and 9 have high heat resistance, they have sufficient durability even during high temperature tests. Therefore, the incandescent light bulb with a lead wire can have a long life even though it is used under harsh conditions.
以上説明したように、本考案のリード線付白熱
電球は、第１の耐熱性熱収縮チユーブで圧着封止
部の先端縁からリード線の被覆部にかけて覆い、
リード線とリード棒との溶接部分を液密状態にす
るとともに、第２の耐熱性熱収縮チユーブで筒状
ベースの他端部から第１の耐熱性熱収縮チユーブ
にかけて覆い、筒状ベースの内部を液密状態にし
たので、水滴がベース内に侵入せず、リード棒と
リード線の溶接部分などが水滴から確実に保護さ
れる。従つて、水を被りやすく、温度差が非常に
大きい過酷な条件下で使用される自動車環境試験
装置などに適したリード線付白熱電球とすること
ができる。
As explained above, the incandescent light bulb with a lead wire of the present invention covers from the tip edge of the crimp sealing part to the covering part of the lead wire with the first heat-resistant heat-shrinkable tube,
The welded part between the lead wire and the lead rod is made liquid-tight, and the second heat-resistant heat-shrinkable tube is covered from the other end of the cylindrical base to the first heat-resistant heat-shrinkable tube, and the inside of the cylindrical base is sealed. Since it is made liquid-tight, water droplets do not enter the base, and the welded parts of the lead rod and lead wire are reliably protected from water droplets. Therefore, it is possible to obtain an incandescent light bulb with a lead wire suitable for use in automobile environmental test equipment, etc., which are used under severe conditions where the bulb is easily exposed to water and has very large temperature differences.
図面は本考案実施例の要部断面図である。
１……封体、１ａ……圧着封止部、２……フイ
ラメントコイル、３……モリブデン箔、４……リ
ード棒、５……被覆部、６……リード線、７……
筒状ベース、７１……接着剤、８……第１の耐熱
性熱収縮チユーブ、９……第２の耐熱性熱収縮チ
ユーブ。
The drawing is a sectional view of a main part of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Sealing body, 1a... Crimp sealing part, 2... Filament coil, 3... Molybdenum foil, 4... Lead rod, 5... Covering part, 6... Lead wire, 7...
Cylindrical base, 71...Adhesive, 8...First heat-resistant heat-shrink tube, 9...Second heat-resistant heat-shrink tube.
Claims (1)
管形封体の両端に形成された圧着封止部を気密に
貫通して外方に伸び、フイラメントコイルと電気
的に接続されたリード棒と、このリード棒と接続
された被覆部付リード線と、前記圧着封止部の先
端縁からリード線の被覆部にかけて覆う第１の耐
熱性熱収縮チユーブと、一端部に前記圧着封止部
が嵌め込まれて接着され、他端部から前記第１の
耐熱性熱収縮チユーブが突出するように取付けら
れた筒状ベースと、この筒状ベースの他端部から
前記第１の耐熱性熱収縮チユーブにかけて覆う第
２の耐熱性熱収縮チユーブとよりなることを特徴
とするリード線付白熱電球。 The filament coil extends outward through the crimp seals formed at both ends of the tubular seal disposed along the tube axis, and the lead rod is electrically connected to the filament coil. A lead wire with a sheath connected to the lead rod, a first heat-resistant heat-shrinkable tube that covers from the tip edge of the crimp sealing part to the sheathing part of the lead wire, and the crimp sealing part is fitted into one end of the tube. a cylindrical base attached such that the first heat-resistant heat-shrinkable tube protrudes from the other end; and a cylindrical base that extends from the other end of the cylindrical base to the first heat-resistant heat-shrinkable tube. An incandescent light bulb with a lead wire, comprising a second heat-resistant heat-shrinkable tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19854986U JPH049731Y2 (en) | 1986-12-26 | 1986-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19854986U JPH049731Y2 (en) | 1986-12-26 | 1986-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63105261U JPS63105261U (en) | 1988-07-07 |
| JPH049731Y2 true JPH049731Y2 (en) | 1992-03-11 |
Family
ID=31159340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19854986U Expired JPH049731Y2 (en) | 1986-12-26 | 1986-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH049731Y2 (en) |
-
1986
- 1986-12-26 JP JP19854986U patent/JPH049731Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63105261U (en) | 1988-07-07 |
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