JPH051592B2 - - Google Patents
Info
- Publication number
- JPH051592B2 JPH051592B2 JP7154185A JP7154185A JPH051592B2 JP H051592 B2 JPH051592 B2 JP H051592B2 JP 7154185 A JP7154185 A JP 7154185A JP 7154185 A JP7154185 A JP 7154185A JP H051592 B2 JPH051592 B2 JP H051592B2
- Authority
- JP
- Japan
- Prior art keywords
- arc tube
- ceramic resistor
- starting circuit
- thermally responsive
- discharge lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000919 ceramic Substances 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 239000007858 starting material Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 1
- 210000001503 joint Anatomy 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 229910001507 metal halide Inorganic materials 0.000 description 4
- 150000005309 metal halides Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 108091027981 Response element Proteins 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はメタルハライドランプ等の金属蒸気放
電灯に関し、特に内部に板状の抵抗体を有する金
属蒸気放電灯に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a metal vapor discharge lamp such as a metal halide lamp, and more particularly to a metal vapor discharge lamp having a plate-shaped resistor inside.
セラミツク板の間にタングステン等の高融点金
属抵抗体をはさみ込んだいわゆる板状セラミツク
抵抗体を金属蒸気放電灯の外管内部に封入するこ
とは、特開昭56−73856号公報などで知られてお
り、この場合セラミツク抵抗体はグローランプよ
り成る始動回路の限流抵抗として用いられてい
る。即ち、第２図に示すように外管１内に電気導
体を兼ねた枠線３，３′を介して発光管２を固定
支持し、またグローランプ５とセラミツク抵抗体
４を始動回路として外管１内に内蔵する。７はバ
イメタルのような熱応動素子で、やはり外管１内
に設けられ、発光管２が点灯するとその熱により
熱応動素子７は動作し、始動回路を電源から切離
すようにしている。
It is known from JP-A-56-73856 that a so-called plate-shaped ceramic resistor, in which a high melting point metal resistor such as tungsten is sandwiched between ceramic plates, is sealed inside the outer bulb of a metal vapor discharge lamp. In this case, the ceramic resistor is used as a current-limiting resistor in a starting circuit consisting of a glow lamp. That is, as shown in FIG. 2, the luminous tube 2 is fixedly supported within the outer tube 1 via the frame lines 3, 3' which also serve as electrical conductors, and the glow lamp 5 and ceramic resistor 4 are externally connected as a starting circuit. It is built into the tube 1. Reference numeral 7 denotes a thermally responsive element such as a bimetal, which is also provided within the outer tube 1, and when the arc tube 2 is lit, the thermally responsive element 7 is operated by the heat, thereby disconnecting the starting circuit from the power source.
しかしながら、前記した従来装置では第３図に
示すようにセラミツク抵抗体４の電極と熱応動素
子７を接続するための端子線８，８′との接合部
Ａは発光管２側を向かざるを得ない。接合部Ａは
通常銀などの金属のロウ材により接合が行われて
おり、発光管２からの輻射熱によりセラミツク抵
抗体４を発光管２側表面の温度は400℃にも達す
るためにこの高温が接合部Ａに加えられると、接
合部Ａが熱により剥離したり、セラミツク抵抗体
４の特性に悪影響を与えたりした。このため、第
４図に示すように熱応動素子７を発光管２と反対
側に配設し、接合部Ａを発光管２と反対側に向か
せたものが提案されたが、熱応動素子７は発光管
２の熱によつて動作するものであり、発光管２が
点灯して始動回路を切離すべき時になつても熱応
動素子７が動作せず、始動回路の動作時間を長く
してその寿命を短かくしてしまうという問題があ
つた。
However, in the conventional device described above, the joint A between the terminal wires 8 and 8' for connecting the electrode of the ceramic resistor 4 and the thermally responsive element 7 must face the arc tube 2 side, as shown in FIG. I don't get it. The joint A is usually joined with a brazing filler metal such as silver, and the radiant heat from the arc tube 2 causes the ceramic resistor 4 to heat up because the temperature on the surface of the arc tube 2 reaches 400°C. When added to the joint A, the joint A peeled off due to heat and the characteristics of the ceramic resistor 4 were adversely affected. For this reason, it has been proposed that the thermally responsive element 7 is disposed on the opposite side of the arc tube 2 and the joint A is directed to the opposite side of the arc tube 2, as shown in FIG. 7 is operated by the heat of the arc tube 2, and even when the arc tube 2 lights up and the starting circuit should be disconnected, the thermally responsive element 7 does not operate, prolonging the operating time of the starting circuit. The problem was that this shortened its lifespan.
本発明は上記の問題点を解決するために成され
たものであり、セラミツク抵抗体の特性損傷や接
合剥離を防止することができるとともに始動回路
の寿命を長くすることができる金属蒸気放電灯を
得ることを目的とする。 The present invention has been made to solve the above problems, and provides a metal vapor discharge lamp that can prevent property damage and bond separation of ceramic resistors and extend the life of the starting circuit. The purpose is to obtain.
本発明は、外管内に発光管とセラミツク抵抗体
を含む始動回路とこの始動回路を発光管の点灯中
に電源から切離す熱応動素子とを有する金属蒸気
放電灯において、セラミツク抵抗体に端子線を介
して接続される熱応動素子をセラミツク抵抗体の
発光管側に配設するとともに、端子線はセラミツ
ク抵抗体の側部から反発光管側に屈曲してこの反
発光管側面においてセラミツク抵抗体と金属ロウ
材を用いて接合したものである。
The present invention provides a metal vapor discharge lamp having a starting circuit including an arc tube and a ceramic resistor in the outer bulb, and a thermally responsive element that disconnects the starting circuit from a power source while the arc tube is lit. At the same time, the terminal wire is bent from the side of the ceramic resistor to the repulsion light tube side, and the terminal wire is connected to the ceramic resistor on the side of the repulsion light tube. and are joined using metal brazing material.
本発明においては、セラミツク抵抗体の端子接
合部を発光管と反対側とするとともに、この端子
接合部から端子線を発光管側に屈曲させて熱応動
素子を接続しており、熱に弱い端子接合部を発光
管と反対側にしたことにより端子接合部の劣化に
よるセラミツク抵抗体の特性の劣化や接合部剥離
を防止することができる。又、熱応動素子が発光
管側に位置しているので発光管が始動するとその
熱により速やかに熱応動素子が動作し、始動回路
の不必要な作動を停止することができる。
In the present invention, the terminal joint of the ceramic resistor is on the opposite side from the arc tube, and the terminal wire is bent from this terminal joint toward the arc tube to connect the thermally responsive element, which is a terminal that is vulnerable to heat. By locating the joint on the side opposite to the arc tube, it is possible to prevent deterioration of the characteristics of the ceramic resistor and peeling of the joint due to deterioration of the terminal joint. Further, since the thermally responsive element is located on the arc tube side, when the arc tube starts, the thermally responsive element is quickly activated by the heat, and unnecessary operation of the starting circuit can be stopped.
以下、本発明の実施例を図面とともに説明す
る。本実施例においては、第１図および第５図に
示すように熱応動素子７をセラミツク抵抗体４の
発光管２側に配設し、端子線８，８′はセラミツ
ク抵抗体４の反発光管２側の面において接合部Ａ
に金属ロウ付けする。端子線８，８′は接合部Ａ
から発光管２側に屈曲し、熱応動素子７を取付け
る。
Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIGS. 1 and 5, the thermally responsive element 7 is arranged on the arc tube 2 side of the ceramic resistor 4, and the terminal wires 8, 8' Joint part A on the surface on the pipe 2 side
Metal solder is applied to the metal. Terminal wires 8, 8' are connected to joint A
From there, it is bent toward the arc tube 2 side, and the thermally responsive element 7 is attached.
上記構成の400Wおよび1000Wのメタルハライ
ドランプを各10本試作した。同時に第３図に示す
従来構造の400Wと1000Wのメタルハライドラン
プを各10本試作した。そして、各メタルハライド
ランプにおけるセラミツク抵抗体４の接合部Ａの
温度を測定したところ、本実施例では400Wのも
ので200℃、1000Wのもので250℃であつた。又、
従来では400Wのもので400℃、1000Wのもので
440℃であつた。又、ライフテストした結果、従
来のものでは2000時間で400W、1000Wのものの
50％がセラミツク抵抗体４の端子結合部Ａの不良
による始動器不良不点になつたのに対し、本実施
例のものでは9000時間後も全数が異常なく点灯し
た。 Ten 400W and 1000W metal halide lamps with the above configuration were prototyped. At the same time, we produced 10 prototype metal halide lamps each of 400W and 1000W with the conventional structure shown in Figure 3. When the temperature of the junction A of the ceramic resistor 4 in each metal halide lamp was measured, in this example it was 200°C for the 400W lamp and 250°C for the 1000W lamp. or,
Conventionally, 400W and 400℃, 1000W and
It was 440℃. In addition, as a result of the life test, the conventional model lost 400W after 2000 hours, and the 1000W model
While 50% of the starters were defective due to a defect in the terminal connection part A of the ceramic resistor 4, all of the starters of this example continued to light up without any abnormality even after 9000 hours.
以上のように本発明においては、セラミツク抵
抗体の端子接合部を発光管と反対側に設けたので
該接合部の温度上昇が抑制され、該接合部の劣化
による特性劣化や剥離は防止される。又、熱応動
素子をセラミツク抵抗体の発光管側に設けたの
で、熱反応素子は発光管の点灯に速やかに応動し
て始動回路を電源から切離すことができ、始動回
路の寿命が長く信頼性のある金属蒸気放電灯が得
られる。
As described above, in the present invention, since the terminal joint part of the ceramic resistor is provided on the opposite side from the arc tube, the temperature rise at the joint part is suppressed, and characteristic deterioration and peeling due to deterioration of the joint part are prevented. . In addition, since the thermally responsive element is installed on the arc tube side of the ceramic resistor, the thermally responsive element can quickly respond to lighting of the arc tube and disconnect the starting circuit from the power supply, resulting in a long and reliable starting circuit life. A metal vapor discharge lamp with high properties is obtained.
第１図は本発明に係る金属蒸気放電灯の要部の
配置関係図、第２図および第３図は夫々従来の金
属蒸気放電灯の全体正面図および要部の配置関係
図、第４図は従来の他の金属蒸気放電灯の要部配
置関係図、第５図は本発明に係るセラミツク抵抗
体の熱応動素子接続状態の斜視図である。
１……外管、２……発光管、４……セラミツク
抵抗体、７……熱応動素子、８，８′……端子線、
Ａ……端子接合部。尚、図中同一符号は同一又は
相当部分を示す。
FIG. 1 is a layout diagram of the main parts of a metal vapor discharge lamp according to the present invention, FIGS. 2 and 3 are an overall front view and a layout diagram of the main parts of a conventional metal vapor discharge lamp, respectively, and FIG. 5 is a diagram showing the arrangement of main parts of another conventional metal vapor discharge lamp, and FIG. 5 is a perspective view of a ceramic resistor according to the present invention in a state in which a thermally responsive element is connected. 1... Outer tube, 2... Arc tube, 4... Ceramic resistor, 7... Thermal response element, 8, 8'... Terminal wire,
A...Terminal joint. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
を有するセラミツク抵抗体を含む始動回路と、セ
ラミツク抵抗体に端子線を介して接続され発光管
の点灯中にその熱により作動して始動回路を電源
から切離す熱動素子を外管内に設けた金属蒸気放
電灯において、熱動素子をセラミツク抵抗体の発
光管側に配設するとともに、前記端子線をセラミ
ツク抵抗体の反発光管側に接合し、この端子線を
発光管側に屈曲して熱応動素子を接続したことを
特徴とする金属蒸気放電灯。1. A starting circuit including an arc tube and a ceramic resistor having a resistive substance inside the ceramic plate, and a starter circuit connected to the ceramic resistor via a terminal wire and activated by the heat while the arc tube is lit to start the starting circuit. In a metal vapor discharge lamp in which a thermal element that is disconnected from the power supply is provided in the outer bulb, the thermal element is arranged on the arc tube side of the ceramic resistor, and the terminal wire is connected to the repulsion light tube side of the ceramic resistor. A metal vapor discharge lamp characterized in that this terminal wire is bent toward the arc tube side to connect a thermally responsive element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7154185A JPS61230257A (en) | 1985-04-04 | 1985-04-04 | Metallic vapor discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7154185A JPS61230257A (en) | 1985-04-04 | 1985-04-04 | Metallic vapor discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61230257A JPS61230257A (en) | 1986-10-14 |
| JPH051592B2 true JPH051592B2 (en) | 1993-01-08 |
Family
ID=13463704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7154185A Granted JPS61230257A (en) | 1985-04-04 | 1985-04-04 | Metallic vapor discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61230257A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6358757A (en) * | 1986-08-29 | 1988-03-14 | Mitsubishi Electric Corp | Metal vapor discharge lamp |
| JP2527948B2 (en) * | 1986-12-03 | 1996-08-28 | 三菱電機株式会社 | Metal vapor discharge lamp |
-
1985
- 1985-04-04 JP JP7154185A patent/JPS61230257A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61230257A (en) | 1986-10-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |