JP2003151307A - Compact self-ballasted fluorescent lamp - Google Patents
Compact self-ballasted fluorescent lampInfo
- Publication number
- JP2003151307A JP2003151307A JP2001396789A JP2001396789A JP2003151307A JP 2003151307 A JP2003151307 A JP 2003151307A JP 2001396789 A JP2001396789 A JP 2001396789A JP 2001396789 A JP2001396789 A JP 2001396789A JP 2003151307 A JP2003151307 A JP 2003151307A
- Authority
- JP
- Japan
- Prior art keywords
- arc tube
- cover
- lighting circuit
- partition plate
- fluorescent 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.)
- Granted
Links
Landscapes
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、熱的対策を図った
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 bulb-type fluorescent lamp that takes measures against heat.
【0002】[0002]
【従来の技術】従来、電球形蛍光ランプは、例えば、特
開2000−21207号公報に記載されているよう
に、複数本の略U字形の管体を順次接続して屈曲形の放
電路を有するバルブを形成するとともにこのバルブの両
端に電極を封装した発光管を備え、この発光管の各管体
の端部を樹脂製の仕切板に挿入して支持するとともに発
光管に接続される点灯回路を搭載した回路基板を仕切板
に保持し、この仕切板に保持した回路基板を口金を有す
る樹脂製のカバー内に収容して仕切板をカバーに取り付
けている。2. Description of the Related Art Conventionally, as described in Japanese Patent Application Laid-Open No. 2000-21207, a compact fluorescent lamp has a bent discharge path formed by connecting a plurality of substantially U-shaped tubes in order. A bulb that has a bulb is formed, and an arc tube in which electrodes are sealed is provided at both ends of this bulb, and the ends of each tube body of this arc tube are inserted into and supported by a partition plate made of resin and are connected to the arc tube. A circuit board on which a circuit is mounted is held by a partition plate, the circuit board held by the partition plate is housed in a resin cover having a cap, and the partition plate is attached to the cover.
【0003】このような電球形蛍光ランプでは、定格電
力60W相当の白熱電球などの規格寸法に近似する大き
さに小形化されているものもあるが、さらなる小形化が
進むにつれて、発光管のバルブの細径化により局所的に
発熱量が増大し、寿命末期時の電極の温度上昇による仕
切板やカバーなどの樹脂部分の溶融や劣化などに影響を
及ぼしたり、カバーの放熱面積が減少するとともにカバ
ー内の空間が小さくなってカバー内の温度が上昇し、カ
バー内に収容される点灯回路に熱的影響を及ぼすことが
懸念される。Some of such light bulb type fluorescent lamps have been downsized to a size close to the standard size of an incandescent light bulb having a rated power of 60 W or the like. The heat generation amount locally increases due to the smaller diameter, which affects the melting and deterioration of the resin parts such as the partition plate and cover due to the temperature rise of the electrode at the end of its life, and reduces the heat dissipation area of the cover. There is concern that the space inside the cover becomes smaller and the temperature inside the cover rises, which may have a thermal effect on the lighting circuit housed inside the cover.
【0004】また、樹脂製の仕切板は、発光管から熱や
紫外線の影響を受ける環境下におかれるため、樹脂が劣
化し、茶褐色に変色して光反射率が低下したり、樹脂の
分解によって発生する劣化物がガス状に放出されてグロ
ーブを備える場合にはグローブに劣化物が付着して光透
過率が低下し、光束が低下することが懸念される。さら
に、樹脂製の仕切板は、難燃性を確保するために、例え
ば臭素系の難燃剤が含まれている場合があるが、この難
燃剤の添加量が多いと発光管からの熱や紫外線の影響に
よって難燃剤からガス成分が多く放出され、このガス成
分が点灯回路に影響を及ぼし、電球形蛍光ランプの寿命
を短くしてしまうことが懸念される。例えば、電解コン
デンサなどは、電解コンデンサの安全弁からガス成分が
侵入した場合、腐食して破損してしまい、早期に点灯回
路の駆動が停止してしまう。Further, since the partition plate made of resin is placed in an environment where it is affected by heat and ultraviolet rays from the arc tube, the resin is deteriorated and discolors to brown and the light reflectance is lowered, or the resin is decomposed. When a deteriorated product generated by the gas is released in a gas state and a glove is provided, the deteriorated product adheres to the glove to lower the light transmittance, which may reduce the luminous flux. Furthermore, the resin partition plate may contain a bromine-based flame retardant, for example, in order to ensure flame retardancy. However, if the flame retardant is added in a large amount, heat from the arc tube or ultraviolet rays will be generated. A large amount of gas component is released from the flame retardant under the influence of, and this gas component affects the lighting circuit, which may shorten the life of the compact fluorescent lamp. For example, when a gas component enters from a safety valve of the electrolytic capacitor, the electrolytic capacitor is corroded and damaged, and the driving of the lighting circuit is stopped early.
【0005】また、例えば、実公昭63−14322号
公報に記載されているように、金属製の仕切板を用い、
この金属製の仕切板によって発光管の熱を外部へ効率よ
く放熱することにより、発光管内の水銀蒸気圧の過度な
上昇を防止した蛍光ランプ装置がある。Further, for example, as described in Japanese Utility Model Publication No. 63-14322, a metal partition plate is used,
There is a fluorescent lamp device in which the metal partition plate efficiently radiates the heat of the arc tube to the outside to prevent an excessive increase in the mercury vapor pressure in the arc tube.
【0006】この蛍光ランプ装置では、樹脂製の仕切板
と異なり、絶縁上および構造上、金属製の仕切板には回
路基板を保持できないため、仕切板と回路基板とを一体
的にカバーに組み立てることはできず、回路基板をカバ
ー内に仕切板と絶縁される位置に取り付けた後に、仕切
板を取り付けてねじ止めする必要があり、回路基板およ
び仕切板をカバーにそれぞれ個別に組み立てる必要があ
る。In this fluorescent lamp device, unlike the resin partition plate, the circuit board cannot be held on the metal partition plate in terms of insulation and structure. Therefore, the partition plate and the circuit board are integrally assembled on the cover. It is not possible to install the circuit board in the cover at a position where it is insulated from the partition plate, and then the partition plate must be installed and screwed, and the circuit board and the partition plate must be individually assembled to the cover. .
【0007】[0007]
【発明が解決しようとする課題】上述したように、電球
形蛍光ランプのさらなる小形化に伴い、発光管のバルブ
の細径化により発熱量が増大し、寿命末期時の電極の温
度上昇による仕切板やカバーなどの樹脂部分の溶融や劣
化などに影響を及ぼしたり、カバーの放熱面積が減少
し、カバー内の空間が小さくなってカバー内が温度上昇
し、カバー内に収容される点灯回路に熱的影響を及ぼす
問題がある。As described above, as the bulb-type fluorescent lamp is further miniaturized, the diameter of the bulb of the arc tube is reduced to increase the amount of heat generation, and the partition due to the temperature rise of the electrode at the end of its life. It affects the melting and deterioration of resin parts such as plates and covers, reduces the heat dissipation area of the cover, reduces the space inside the cover and raises the temperature inside the cover, and it becomes a lighting circuit housed in the cover. There is a problem of thermal influence.
【0008】また、樹脂製の仕切板では、発光管から熱
や紫外線の影響を受ける環境下におかれるため、樹脂が
劣化し、茶褐色に変色して光反射率が低下したり、ガス
状に放出された劣化物の付着によってグローブの光透過
率が低下するなど、光束が低下する問題があり、さら
に、樹脂製の仕切板に難燃剤が多く含まれている場合に
は、発光管からの熱や紫外線の影響によって難燃剤から
放出されるガス成分が点灯回路に影響を及ぼす問題があ
る。Further, since the partition plate made of resin is placed in an environment affected by heat and ultraviolet rays from the arc tube, the resin is deteriorated and discolors to a brown color, the light reflectance is lowered, and the resin becomes a gaseous state. There is a problem that the luminous flux decreases, such as a decrease in the light transmittance of the globe due to the adherence of the deteriorated substances that have been released, and when the resin partition plate contains a large amount of flame retardant, There is a problem that the gas component released from the flame retardant under the influence of heat or ultraviolet rays affects the lighting circuit.
【0009】また、金属製の仕切板を用いることで発光
管の放熱性を向上できるが、金属製の仕切板には回路基
板を保持できないため、回路基板および仕切板をカバー
にそれぞれ個別に組み立てる必要があり、組立性が損な
われる問題がある。Further, although the heat dissipation of the arc tube can be improved by using the metal partition plate, since the circuit board cannot be held on the metal partition plate, the circuit board and the partition plate are individually assembled on the cover. Therefore, there is a problem that the assemblability is impaired.
【0010】本発明は、このような点に鑑みなされたも
ので、組立性がよく、樹脂部分や点灯回路などへの熱的
影響を低減できるとともに、仕切板が樹脂製の場合のよ
うな光束低下や点灯回路への影響を防止できる電球形蛍
光ランプを提供することを目的とする。The present invention has been made in view of the above points, has a good assembling property, can reduce a thermal influence on a resin portion, a lighting circuit, and the like, and can provide a luminous flux such as when the partition plate is made of resin. An object of the present invention is to provide a bulb-type fluorescent lamp that can prevent the deterioration and the influence on the lighting circuit.
【0011】[0011]
【課題を解決するための手段】請求項1記載の電球形蛍
光ランプは、発光管と;発光管を点灯させる点灯回路
と;発光管側に配置される金属製の仕切板と非発光管側
に配置される樹脂製の保持部とが一体形成され、仕切板
に挿通した発光管を支持するとともに保持部に点灯回路
の少なくとも一部を保持した仕切体と;仕切体が取り付
けられ仕切体の保持部に保持された点灯回路を収容した
カバーと;カバーに取り付けられた口金と;を具備して
いるものである。According to a first aspect of the present invention, there is provided a light bulb type fluorescent lamp including a light emitting tube; a lighting circuit for lighting the light emitting tube; a metal partition plate disposed on the light emitting tube side and a non-light emitting tube side. A resin-made holding section disposed integrally with the partition plate, which supports the arc tube inserted through the partition plate and holds at least a part of the lighting circuit in the holding section; A cover that accommodates the lighting circuit held by the holding unit; and a base attached to the cover are provided.
【0012】そして、この構成では、発光管側に配置さ
れる金属製の仕切板と非発光管側に配置される樹脂製の
保持部とを一体形成した仕切体を用いるため、この仕切
体の仕切板側に発光管を、保持部側に点灯回路をそれぞ
れ一体に取り付けてカバーに組み立てられる。しかも、
発光管側に配置される金属製の仕切板によって発光管の
温度上昇による樹脂部分や点灯回路などへの熱的影響が
低減されるとともに、熱伝導率の高い金属製の仕切板か
らカバー側に効率よく熱が伝達されて、仕切体から点灯
回路へ伝わる熱が抑制され、点灯回路の温度上昇が低減
される。さらに、仕切板が金属製であるため、樹脂の場
合のような発光管からの熱や紫外線による劣化の影響が
なく、光束低下や点灯回路への影響が防止される。In this structure, since a partition body integrally formed with a metal partition plate disposed on the arc tube side and a resin holding portion disposed on the non-arc tube side is used, The arc tube is integrally attached to the partition plate side, and the lighting circuit is integrally attached to the holding portion side to assemble the cover. Moreover,
The metal partition plate located on the arc tube side reduces the thermal effect on the resin part and lighting circuit due to the temperature rise of the arc tube, and the metal partition plate with a high thermal conductivity moves from the metal partition plate to the cover side. The heat is efficiently transmitted, the heat transmitted from the partition body to the lighting circuit is suppressed, and the temperature rise of the lighting circuit is reduced. Further, since the partition plate is made of metal, there is no influence of deterioration due to heat or ultraviolet rays from the arc tube as in the case of resin, and a decrease in luminous flux and an influence on the lighting circuit are prevented.
【0013】請求項2記載の電球形蛍光ランプは、請求
項1記載の電球形蛍光ランプにおいて、カバーの外面に
仕切板と接続される金属製の放熱部が設けられているも
のである。A light bulb shaped fluorescent lamp according to a second aspect is the light bulb shaped fluorescent lamp according to the first aspect, in which a metal heat radiating portion connected to the partition plate is provided on the outer surface of the cover.
【0014】そして、この構成では、カバーの外面に仕
切板と接続される金属製の放熱部を設けたため、仕切板
から放熱部に伝わってくる熱の放熱性が向上する。Further, in this structure, since the metal heat radiation portion connected to the partition plate is provided on the outer surface of the cover, the heat radiation performance of the heat transmitted from the partition plate to the heat radiation portion is improved.
【0015】請求項3記載の電球形蛍光ランプは、発光
管と;発光管を点灯させる点灯回路と;発光管側に配置
される金属製の仕切板を有し、発光管を支持するととも
に非発光管側に点灯回路の少なくとも一部を保持した仕
切体と;仕切体が取り付けられ仕切体に保持された点灯
回路を収容したカバーと;カバーの外面に設けられ仕切
板と接続される金属製の放熱部と;カバーに取り付けら
れた口金と;を具備しているものである。According to another aspect of the present invention, there is provided a light bulb type fluorescent lamp having an arc tube, a lighting circuit for lighting the arc tube, and a metal partition plate disposed on the arc tube side, which supports the arc tube and does not support the arc tube. A partition body that holds at least a part of the lighting circuit on the arc tube side; a cover that houses the lighting circuit that is attached to the partition body and that is held by the partition body; and a metal that is provided on the outer surface of the cover and is connected to the partition plate. And a cap attached to the cover.
【0016】そして、この構成では、仕切体に発光管お
よび点灯回路をそれぞれ一体に取り付けてカバーに組み
立てられる。しかも、仕切体の発光管側に配置される金
属製の仕切板によって発光管の温度上昇による樹脂部分
や点灯回路などへの熱的影響が低減され、熱伝導率の高
い金属製の仕切板からカバー側に効率よく熱が伝達され
るとともに、カバー側の金属製の放熱部で仕切板から伝
わってくる熱が効率よく放熱され、したがって、仕切体
から点灯回路へ伝わる熱が抑制され、点灯回路の温度上
昇が低減される。さらに、仕切板が金属製であるため、
樹脂の場合のような発光管からの熱や紫外線による劣化
の影響がなく、光束低下や点灯回路への影響が防止され
る。In this structure, the arc tube and the lighting circuit are integrally attached to the partition body and assembled into the cover. In addition, the metal partition plate placed on the arc tube side of the partition reduces the thermal effect on the resin part and lighting circuit due to the temperature rise of the arc tube, and the metal partition plate with high thermal conductivity The heat is efficiently transferred to the cover side, and the heat radiated from the partition plate is efficiently radiated by the metal heat radiation part on the cover side. Therefore, the heat transferred from the partition body to the lighting circuit is suppressed, and the lighting circuit is Temperature rise is reduced. Furthermore, since the partition plate is made of metal,
As in the case of resin, there is no influence of deterioration from heat from the arc tube or ultraviolet rays, and reduction of luminous flux and influence on the lighting circuit are prevented.
【0017】請求項4記載の電球形蛍光ランプは、請求
項2または3記載の電球形蛍光ランプにおいて、放熱部
の表面に塗装および表面処理加工のいずれか一方が施さ
れているものである。A light bulb type fluorescent lamp according to a fourth aspect is the light bulb type fluorescent lamp according to the second or third aspect, in which one of coating and surface treatment is applied to a surface of the heat radiating portion.
【0018】そして、この構成では、放熱部の表面に塗
装および表面処理加工のいずれか一方を施したため、放
熱部からの熱放射性が向上する。In this structure, since the surface of the heat radiating portion is coated or surface-treated, the heat radiation from the heat radiating portion is improved.
【0019】請求項5記載の電球形蛍光ランプは、発光
管と;発光管に接続された点灯回路と;発光管に対向す
る面の少なくとも中央部に配設された金属製の仕切板、
および仕切板の周囲に配置され点灯回路を保持した樹脂
製の保持部を有し、発光管を支持するように構成された
仕切体と;仕切体が取り付けられ仕切体に保持された点
灯回路を収容したカバーと;カバーに取り付けられた口
金と;を具備しているものである。The bulb-type fluorescent lamp according to claim 5; an arc tube; a lighting circuit connected to the arc tube; a metal partition plate disposed at least in the center of the surface facing the arc tube.
And a partition body arranged around the partition plate and having a resin holding portion for holding the lighting circuit and configured to support the arc tube; and a lighting circuit to which the partition body is attached and which is held by the partition body. It is provided with a cover housed therein; and a base attached to the cover.
【0020】そして、この構成では、発光管に対向する
面の少なくとも中央部に配設された金属製の仕切板、お
よびこの仕切板の周囲に配置される樹脂製の保持部とを
有する仕切体を用いるため、この仕切体に発光管および
点灯回路をそれぞれ一体に取り付けてカバーに組み立て
られる。しかも、発光管に対向する金属製の仕切板によ
って発光管の温度上昇による樹脂部分や点灯回路などへ
の熱的影響を低減されるとともに、熱伝導率の高い金属
製の仕切板からカバー側に効率よく熱が伝達されて、仕
切体から点灯回路へ伝わる熱が抑制され、点灯回路の温
度上昇が低減される。さらに、仕切板が金属製であるた
め、樹脂の場合のような発光管からの熱や紫外線による
劣化の影響がなく、光束低下や点灯回路への影響が防止
される。In this structure, a partition body having a metal partition plate disposed at least in the center of the surface facing the arc tube, and a resin holding portion disposed around the partition plate. Therefore, the arc tube and the lighting circuit are integrally attached to the partition body, and the partition body is assembled into the cover. Moreover, the metal partition plate facing the arc tube reduces the thermal influence on the resin part and the lighting circuit due to the temperature rise of the arc tube, and the partition plate made of metal with high thermal conductivity moves from the cover side to the cover side. The heat is efficiently transmitted, the heat transmitted from the partition body to the lighting circuit is suppressed, and the temperature rise of the lighting circuit is reduced. Further, since the partition plate is made of metal, there is no influence of deterioration due to heat or ultraviolet rays from the arc tube as in the case of resin, and a decrease in luminous flux and an influence on the lighting circuit are prevented.
【0021】請求項6記載の電球形蛍光ランプは、請求
項1ないし5いずれか一記載の電球形蛍光ランプにおい
て、カバーの内面に熱吸収層が形成されているものであ
る。According to a sixth aspect of the present invention, in the light bulb type fluorescent lamp according to any one of the first to fifth aspects, a heat absorbing layer is formed on the inner surface of the cover.
【0022】そして、この構成では、カバーの内面に熱
吸収層を形成したため、カバー内の熱が効率よく吸収さ
れてカバーから外部ヘ放熱され、カバー内の温度上昇が
低減される。In this structure, since the heat absorption layer is formed on the inner surface of the cover, the heat in the cover is efficiently absorbed and radiated to the outside from the cover, and the temperature rise in the cover is reduced.
【0023】請求項7記載の電球形蛍光ランプは、請求
項1ないし6いずれか一記載の電球形蛍光ランプにおい
て、カバーには発光管を覆う透光性のグローブが取り付
けられており、このグローブおよび口金を除いたカバー
が外方に露出する表面積に対する入力電力の割合は70
0W/m2以上である。A light bulb type fluorescent lamp according to a seventh aspect is the light bulb type fluorescent lamp according to any one of the first to sixth aspects, wherein a translucent globe covering the arc tube is attached to the cover. The ratio of the input power to the surface area of the cover exposed outside is 70.
It is 0 W / m 2 or more.
【0024】そして、この構成では、グローブおよび口
金を除いたカバーが外方に露出している表面積に対する
入力電力の割合は700W/m2以上とするため、電球
形蛍光ランプを小形化できるとともに、小形化しても発
光管からの樹脂部分や点灯回路への影響が低減される。In this structure, the ratio of the input power to the surface area of the cover, excluding the globe and the base, which is exposed to the outside, is 700 W / m 2 or more, so that the compact fluorescent lamp can be obtained. Even if the size is reduced, the influence of the arc tube on the resin portion and the lighting circuit is reduced.
【0025】請求項8記載の電球形蛍光ランプは、請求
項1ないし7いずれか一記載の電球形蛍光ランプにおい
て、発光管の容積に対する発光管の入力電力の割合は3
00kW/m3以上である。According to an eighth aspect of the present invention, in the light bulb type fluorescent lamp according to any one of the first to seventh aspects, the ratio of the input power of the arc tube to the volume of the arc tube is 3%.
It is 00 kW / m 3 or more.
【0026】そして、この構成では、発光管の容積に対
する発光管の入力電力の割合は300kW/m3以上と
するため、電球形蛍光ランプが小形化されるとともに、
小形化しても発光管からの樹脂部分や点灯回路への影響
が低減される。In this structure, the ratio of the input power of the arc tube to the volume of the arc tube is 300 kW / m 3 or more, so that the compact fluorescent lamp is downsized and
Even if the size is reduced, the influence of the arc tube on the resin portion and the lighting circuit is reduced.
【0027】[0027]
【発明の実施の形態】以下、本発明の一実施の形態を図
面を参照して説明する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.
【0028】図1ないし図8に第1の実施の形態を示
し、図1は電球形蛍光ランプの断面図であり、図2は電
球形蛍光ランプのグローブを透過した状態の正面図であ
り、図3は電球形蛍光ランプの発光管の展開図であり、
図4は電球形蛍光ランプの回路基板の平面図であり、図
5は電球形蛍光ランプの熱の流れを示す模式図であり、
図6は電球形蛍光ランプの仕切体をポリブチレンテレフ
タレート(PBT)の樹脂のみで形成した実験例Aと仕
切体に金属製の仕切板を一体形成した実験例Bとについ
て、電球形蛍光ランプへの入力電力を変化させた場合の
点灯回路の平均温度を測定した実験結果を示すグラフで
あり、図7は電球形蛍光ランプのカバーの内面に熱吸収
層を形成しない場合の熱放射率を0.08、カバーの内
面に熱吸収層を形成した場合の熱放射率を0.8とし
て、カバーの下部側および上部側における熱流量を計算
した計算結果を示すグラフであり、図8は電球形蛍光ラ
ンプのカバーの内面に熱吸収層を形成しない実験例Cと
熱吸収層を形成した実験例Dとに関し、(a)に電球形蛍
光ランプへの入力電力を変化させた場合の主アマルガム
の部分の温度を測定した実験結果を示すグラフ、(b)に
電球形蛍光ランプへの入力電力を変化させた場合の点灯
回路の回路部品の1つであるコンデンサの部分の温度を
測定した実験結果を示すグラフである。1 to 8 show a first embodiment, FIG. 1 is a sectional view of a compact fluorescent lamp, and FIG. 2 is a front view of the compact fluorescent lamp as seen through a globe. FIG. 3 is a development view of the arc tube of the bulb-type fluorescent lamp,
FIG. 4 is a plan view of the circuit board of the compact fluorescent lamp, and FIG. 5 is a schematic diagram showing the heat flow of the compact fluorescent lamp.
FIG. 6 shows an experimental example A in which the partition body of the light bulb type fluorescent lamp is formed only of the resin of polybutylene terephthalate (PBT) and an experimental example B in which the partition plate made of metal is integrally formed on the partition body. FIG. 7 is a graph showing the experimental results of measuring the average temperature of the lighting circuit when the input power is changed, and FIG. 7 shows the thermal emissivity when the heat absorption layer is not formed on the inner surface of the cover of the light bulb shaped fluorescent lamp. .08, the heat emissivity when the heat absorption layer is formed on the inner surface of the cover is 0.8, and is a graph showing the calculation results of the heat flow rates on the lower side and the upper side of the cover. FIG. Regarding Experimental Example C in which the heat absorption layer is not formed on the inner surface of the cover of the fluorescent lamp and Experimental Example D in which the heat absorption layer is formed, in (a) of the main amalgam when the input power to the bulb-shaped fluorescent lamp is changed. Measure the temperature of the part Graph showing experimental results, is a graph showing experimental results of the temperature of one is part of the capacitor is the circuit components were measured in the lighting circuit in the case of changing the input power to the bulb-type fluorescent lamp (b).
【0029】図1および図2において、11は電球形蛍光
ランプで、この電球形蛍光ランプ11は、カバー12、口金
13およびグローブ14を有する外囲器、仕切体15に取り付
けられて外囲器内に収容される発光管16および点灯回路
17を有する蛍光ランプ装置を備えている。そして、外囲
器は、例えば、ミニクリプトンタイプの電球の規格寸法
に近似する外形で、口金13からグローブ14までの高さ方
向の寸法が約81mm程度、グローブ14の最大直径部分
に対応した幅方向の寸法が約45mm程度に形成されて
いる。そして、以下、カバー12の一端側つまり口金13側
を上側、他端側つまりグローブ14および発光管16側を下
側として説明する。In FIG. 1 and FIG. 2, 11 is a light bulb type fluorescent lamp, and this light bulb type fluorescent lamp 11 includes a cover 12 and a base.
An envelope having 13 and a globe 14, an arc tube 16 attached to the partition body 15 and housed in the envelope, and a lighting circuit.
A fluorescent lamp device having 17 is provided. Then, the envelope has, for example, an outer shape that is close to the standard size of a mini-krypton type light bulb, the dimension in the height direction from the base 13 to the globe 14 is about 81 mm, and the width corresponding to the maximum diameter portion of the globe 14. The dimension in the direction is about 45 mm. In the following description, one end of the cover 12, that is, the base 13 side is the upper side, and the other end, that is, the globe 14 and the arc tube 16 side is the lower side.
【0030】そして、カバー12は、例えばポリブチレン
テレフタレート(PBT)などの白色の耐熱性合成樹脂
などにて、発光管16側の下方に拡開する略円筒状に形成
されている。The cover 12 is made of, for example, a white heat-resistant synthetic resin such as polybutylene terephthalate (PBT), and is formed into a substantially cylindrical shape that expands downward toward the arc tube 16 side.
【0031】カバー12の発光管16側の外周面には金属製
の放熱部21が一体成形によって形成されている。この放
熱部21は、カバー12の材質に比べて熱伝導率の高い例え
ばアルミニウムなどの金属材料にて環状に形成されてお
り、発光管16側の端部はカバー12より突出されて略45
°の傾斜状に面取りされた接続面22が形成されている。A heat radiating portion 21 made of metal is integrally formed on the outer peripheral surface of the cover 12 on the arc tube 16 side. The heat radiating portion 21 is formed in a ring shape with a metal material having a higher thermal conductivity than the material of the cover 12, such as aluminum, and the end portion on the arc tube 16 side is projected from the cover 12 and is approximately 45 mm.
A connection surface 22 is formed which is chamfered in a slanting manner at an angle of °.
【0032】放熱部21の表面には、材質がアルミニウム
の場合に熱放射率が0.1以下と低いことから、熱放射
率の向上を目的として、アルミニウムに比べて熱放射率
が高い白色アクリル塗料が塗装されたり、白色アルマイ
ト処理などの表面処理加工が施されて、熱放射層23が形
成されている。The surface of the heat radiating portion 21 has a low thermal emissivity of 0.1 or less when the material is aluminum. Therefore, for the purpose of improving the thermal emissivity, white acrylic resin having a higher thermal emissivity than aluminum is used. The heat radiation layer 23 is formed by applying paint or performing surface treatment such as white alumite treatment.
【0033】カバー12の内面には、例えばラッカー系の
黒色系などの熱吸収塗料を塗布して熱吸収層24が形成さ
れている。熱吸収層24の熱放射率は0.8以上である。A heat absorbing layer 24 is formed on the inner surface of the cover 12 by applying a heat absorbing paint such as a lacquer black type. The thermal emissivity of the heat absorption layer 24 is 0.8 or more.
【0034】また、口金13は、エジソンタイプのE17
型などで、点灯回路17との配線後にカバー12の上端部に
被せられ、接着剤またはかしめなどにより固定されてい
る。The base 13 is an Edison type E17.
A mold or the like covers the upper end portion of the cover 12 after wiring with the lighting circuit 17, and is fixed by an adhesive or caulking.
【0035】また、グローブ14は、透明あるいは光拡散
性を有する乳白色などで、ガラスあるいは合成樹脂によ
り、ミニクリプトンタイプの電球のガラス球の形状に近
似した略球形に形成されているとともに、一部に開口部
が形成され、この開口部の縁部がカバー12に嵌合されて
接着剤により接着されている。なお、このグローブ14
は、拡散膜などの別部材を組み合わせて輝度の均一性を
向上することもでき、あるいはグローブ14自体を省略す
ることもできる。The globe 14 is transparent or has a light diffusing property such as milky white, and is formed of glass or synthetic resin into a substantially spherical shape similar to the shape of the glass sphere of a mini-krypton type light bulb, and a part thereof. An opening is formed in the opening, and the edge of the opening is fitted into the cover 12 and adhered by an adhesive. In addition, this glove 14
In addition, the brightness uniformity can be improved by combining another member such as a diffusion film, or the globe 14 itself can be omitted.
【0036】また、仕切体15は、カバー12の下端の開口
部に取り付けられるもので、発光管16側に配置される金
属製の仕切板26と、発光管16側に対して反対側つまり非
発光管側に配置される樹脂製の保持部27とが一体形成さ
れている。The partition 15 is attached to the opening at the lower end of the cover 12, and is made of a metal partition plate 26 arranged on the side of the arc tube 16 and the side opposite to the arc tube 16 side, that is, the non-partition side. A resin holding portion 27 arranged on the arc tube side is integrally formed.
【0037】仕切板26は、カバー12の材質に比べて熱伝
導率の高い例えばアルミニウムなどの金属材料にて0.
3〜2mmの板厚の円板状に形成されている。仕切板26
の内側には発光管16が挿通される複数の取付孔28(図1
1参照)が形成され、仕切板26の周縁部には保持部27よ
り外径側に突出して略45°の傾斜状に面取りされた接
続面29が形成されている。この接続面29は、仕切体15を
カバー12に取り付けた状態で、放熱部21の接続面22と互
いに面接触して接続されるもので、直接接して溶接によ
り固定されるか、熱伝導率が1〜10W/mK(ワット
・パー・メートル・ケルビン)程度のシリコーン樹脂な
どによって接着固定される。仕切板26の板厚は0.3m
mより薄いと強度が低く、2mmを超えると包装状態で
の落下試験で発光管16やカバー12に損傷を与える。The partition plate 26 is made of a metal material, such as aluminum, which has a higher thermal conductivity than that of the cover 12.
It is formed in a disk shape having a plate thickness of 3 to 2 mm. Partition plate 26
A plurality of mounting holes 28 through which the arc tube 16 is inserted (see FIG. 1).
1) is formed, and a peripheral surface of the partition plate 26 is formed with a connection surface 29 that is chamfered in an inclined shape of approximately 45 ° so as to project to the outer diameter side from the holding portion 27. The connecting surface 29 is connected to the connecting surface 22 of the heat radiating portion 21 in surface contact with each other in the state where the partition body 15 is attached to the cover 12, and is directly contacted and fixed by welding or the thermal conductivity. Is bonded and fixed with a silicone resin or the like of about 1 to 10 W / mK (Watts per meter Kelvin). The thickness of the partition plate 26 is 0.3 m
If it is thinner than m, the strength is low, and if it exceeds 2 mm, the arc tube 16 and the cover 12 are damaged in a drop test in a packaged state.
【0038】保持部27は、例えばポリブチレンテレフタ
レート(PBT)などの耐熱性合成樹脂材料にて仕切板
26と一体成形によって形成されており、発光管16を保持
する発光管保持部30、および点灯回路17を保持する点灯
回路保持部31が形成されている。発光管保持部30には、
発光管16が挿通される複数の取付孔32が形成されてお
り、これら取付孔32に発光管16が挿通された状態で例え
ばシリコーン樹脂などの接着剤33で固定される。点灯回
路保持部31は、発光管保持部30の周縁部位置から突設さ
れて点灯回路17を保持する複数の回路基板保持爪34を有
している。The holder 27 is a partition plate made of a heat-resistant synthetic resin material such as polybutylene terephthalate (PBT).
It is formed by integral molding with 26, and an arc tube holder 30 for holding the arc tube 16 and a lighting circuit holder 31 for holding the lighting circuit 17 are formed. In the arc tube holder 30,
A plurality of mounting holes 32 through which the light emitting tube 16 is inserted are formed, and the light emitting tube 16 is fixed in the mounting hole 32 with an adhesive 33 such as a silicone resin. The lighting circuit holding part 31 has a plurality of circuit board holding claws 34 projecting from the peripheral position of the arc tube holding part 30 and holding the lighting circuit 17.
【0039】また、発光管16は、図1ないし図3に示す
ように、ガラス製のバルブ37を有し、このバルブ37の内
面に例えば3波長形蛍光体が形成され、バルブ37の内部
にアルゴンなどの希ガスや水銀などを含む封入ガスが封
入され、バルブ37の両端に一対の電極38が例えばピンチ
シールによって封装されている。Further, as shown in FIGS. 1 to 3, the arc tube 16 has a bulb 37 made of glass, and a three-wavelength type phosphor is formed on the inner surface of the bulb 37. A fill gas containing a rare gas such as argon or mercury is filled, and a pair of electrodes 38 are sealed at both ends of the bulb 37 by, for example, pinch seals.
【0040】バルブ37は、本実施の形態では3本の管体
39を有し、これら管体39は、例えば、管外径が5〜10
mmで本実施の形態では約6.5mm程度、管内径が5
mm以上で本実施の形態では約5.2mm程度のガラス
製の断面略円筒状の管が、中間部で湾曲されて頂部を有
する略U字状に形成されている。すなわち、各管体39
は、湾曲する屈曲部40と、この屈曲部40に連続する互い
に平行な一対の直管部41とを備えており、略U字状の状
態で屈曲部40と端部との高さ方向の管長が最大で約35
mm程度に形成されている。なお、高さ方向の管長は、
中央の管体39が両側の管体39より少しだけ長く形成され
ている。The valve 37 is three pipes in this embodiment.
39, and these pipe bodies 39 have, for example, a pipe outer diameter of 5 to 10
In this embodiment, it is about 6.5 mm, and the pipe inner diameter is 5 mm.
In the present embodiment, a glass tube having a substantially cylindrical cross section having a diameter of at least mm and having a diameter of about 5.2 mm is formed in a substantially U shape having a top portion which is curved at an intermediate portion. That is, each tube 39
Is provided with a curved bent portion 40 and a pair of parallel straight tube portions 41 that are continuous with the bent portion 40 and are parallel to each other. Maximum pipe length is about 35
It is formed to have a size of about mm. The pipe length in the height direction is
The central tubular body 39 is formed slightly longer than the tubular bodies 39 on both sides.
【0041】各管体39の隣接する端部近傍同士が連通管
42で順次接続されて放電路長が120〜200mmの1
本の連続した放電路43が形成されている。連通管42は、
各管体39の接続する端部を加熱溶融した後、吹き破るこ
とによって形成された開口同士をつなぎ合わせて形成さ
れている。そして、各管体39の直管部41が、電球形蛍光
ランプ11の中心軸を中心とする同一円周上に等間隔で位
置され、すなわち、各管体39の直管部41が断面六角形の
各頂点に対応して配置されている。The vicinity of the adjacent ends of each pipe 39 is a communication pipe
1 with a discharge path length of 120 to 200 mm connected in sequence at 42
A continuous discharge path 43 of a book is formed. The communication pipe 42 is
It is formed by connecting the openings formed by blowing and then melting the connected ends of the pipes 39 by heating. The straight pipe portions 41 of each tubular body 39 are arranged at equal intervals on the same circumference centered on the central axis of the bulb-type fluorescent lamp 11, that is, the straight pipe portions 41 of each tubular body 39 have a cross section of six sections. It is arranged corresponding to each vertex of the polygon.
【0042】各管体39は、マウントを用いたラインシー
ルあるいはマウントを用いないピンチシールなどにより
一端部が封止されているとともに、他端部には排気管と
も呼ばれる円筒状の細管44がそれぞれ連通状態に突設さ
れている。この実施の形態では、バルブ37の両端の管体
39の細管44は電極38が封装される端部とは反対側つまり
非電極側の端部に突設されている。これら各細管44は、
バルブ37の製造過程で溶断によって順次封止され、各細
管44のうちの封止されていない一部を通じてバルブ37内
の排気がなされるとともに、封入ガスが封入されて置換
された後に、その各細管44のうちの封止されていない一
部を溶断することによって封止される。Each pipe 39 has one end sealed with a line seal using a mount or a pinch seal without a mount, and a cylindrical thin pipe 44 also called an exhaust pipe at the other end. It is projected so as to communicate with each other. In this embodiment, the pipes at both ends of the valve 37 are
The thin tube 44 of 39 is provided on the side opposite to the end where the electrode 38 is sealed, that is, on the end on the non-electrode side. Each of these thin tubes 44
After the valve 37 is sequentially sealed by fusing in the manufacturing process, the inside of the valve 37 is evacuated through an unsealed part of each thin tube 44, and after the enclosed gas is filled and replaced, the It is sealed by fusing an unsealed part of the thin tube 44.
【0043】各電極38は、フィラメントコイル45を有
し、このフィラメントコイル45が一対(2本)の線状の
ウエルズ46に支持されている。各ウエルズ46は、例え
ば、両端の管体39の端部にピンチシールなどによって封
着されたジュメット線を介して、両端の管体39の端部の
外部に導出されて点灯回路17に接続されるワイヤ47に接
続されている。Each electrode 38 has a filament coil 45, and the filament coil 45 is supported by a pair (two) of linear wells 46. Each of the wells 46 is led to the outside of the end of the tube body 39 at both ends and connected to the lighting circuit 17 through, for example, a Dumet wire that is sealed to the ends of the tube body 39 at both ends by a pinch seal or the like. Connected to the wire 47.
【0044】一端の管体39の細管44には、その細管44を
封止する際に主アマルガム48が封入されている。この主
アマルガム48は、ビスマス、インジウムおよび水銀にて
構成される合金であり、略球形状に形成され、バルブ37
内の水銀蒸気圧を適正な範囲に制御する作用を有してい
る。なお、主アマルガム48としては、ビスマス、インジ
ウムの他に、スズ、鉛などを組み合わせた合金によって
形成したものを用いてもよい。また、両端の各管体39の
電極38の一方のウエルズ46には、主アマルガム48と同様
の水銀蒸気圧特性を有する補助アマルガム49が取り付け
られている。A main amalgam 48 is enclosed in the thin tube 44 of the tubular body 39 at one end when the thin tube 44 is sealed. The main amalgam 48 is an alloy composed of bismuth, indium and mercury, is formed in a substantially spherical shape, and has a valve 37
It has the effect of controlling the mercury vapor pressure in the inside to an appropriate range. As the main amalgam 48, one formed of an alloy in which tin, lead, etc. are combined in addition to bismuth and indium may be used. Further, an auxiliary amalgam 49 having the same mercury vapor pressure characteristics as the main amalgam 48 is attached to one of the wells 46 of the electrodes 38 of the tubes 39 at both ends.
【0045】そして、バルブ37の各管体39の端部が仕切
体15の仕切板26の取付孔28および保持部27の取付孔32に
挿入されるとともに、保持部28の内側から例えばシリコ
ーン樹脂などの接着剤が充填されることにより、各管体
39の端部と仕切体15とが互いに固定される。The end of each tube 39 of the valve 37 is inserted into the mounting hole 28 of the partition plate 26 of the partition body 15 and the mounting hole 32 of the holding portion 27, and the inside of the holding portion 28 is made of, for example, silicone resin. By filling with an adhesive such as
The end of 39 and the partition 15 are fixed to each other.
【0046】また、点灯回路17は、図1に示すように、
仕切体15に保持されてカバー12内に配置される略円板状
の回路基板51を備え、回路基板51の口金13側の一面、あ
るいは口金13側と発光管16側との両面に、複数の電気部
品52が実装されて、発光管16を高周波点灯させる高周波
点灯回路であるインバータ回路が構成されている。Further, the lighting circuit 17, as shown in FIG.
A circuit board 51 having a substantially disk shape, which is held by the partition body 15 and arranged in the cover 12, is provided, and a plurality of circuit boards 51 are provided on one surface of the base 13 side or on both the base 13 side and the arc tube 16 side. The electric component 52 is mounted to form an inverter circuit which is a high frequency lighting circuit for lighting the arc tube 16 at a high frequency.
【0047】回路基板51の両面に電気部品を実装する場
合、口金13側には、比較的熱に弱くつまり比較的耐熱性
が低い、大形の電解コンデンサ、フィルムコンデンサな
どの電気部品52が配置されるとともに、発光管16側に
は、比較的熱に強くつまり比較的耐熱性が高く、高さ寸
法の小さい整流素子やダイオードブリッジなどのRE
C、トランジスタ、抵抗などのチップ部品であるチップ
状の電気部品52が配置される。When mounting electrical components on both sides of the circuit board 51, electrical components 52 such as large electrolytic capacitors and film capacitors, which are relatively weak to heat, that is, have relatively low heat resistance, are arranged on the base 13 side. At the same time, on the side of the arc tube 16, there is a RE such as a rectifying element or a diode bridge having a relatively high heat resistance, that is, a relatively high heat resistance and a small height.
A chip-shaped electric component 52, which is a chip component such as C, a transistor, and a resistor, is arranged.
【0048】回路基板51には、図4に示すように、発光
管16の各細管44が挿通される複数の通孔53が形成され、
回路基板51の上面側でこれら通孔53のうち主アマルガム
48を収容した細管44が挿通される通孔53の側部に電界効
果トランジスタ(FET)などの複数のスイッチング素
子54が配置されている。すなわち、細管44内の主アマル
ガム48と複数のスイッチング素子54とが接近して配置さ
れるため、電球形蛍光ランプ11の始動時において、回路
部品のなかで比較的早く発熱しやすいスイッチング素子
54の熱で主アマルガム48が素早く暖められ、発光管16内
の水銀蒸気圧が素早く増加し、光束の立ちあがり特性を
改善できる。As shown in FIG. 4, a plurality of through holes 53 through which the thin tubes 44 of the arc tube 16 are inserted are formed in the circuit board 51,
The main amalgam of these through holes 53 on the upper surface side of the circuit board 51.
A plurality of switching elements 54 such as field effect transistors (FETs) are arranged on the side of the through hole 53 through which the thin tube 44 containing 48 is inserted. That is, since the main amalgam 48 in the narrow tube 44 and the plurality of switching elements 54 are arranged close to each other, at the time of starting the bulb-type fluorescent lamp 11, switching elements that easily generate heat relatively quickly among the circuit components.
The heat of 54 heats the main amalgam 48 quickly, the mercury vapor pressure in the arc tube 16 increases rapidly, and the rising characteristics of the luminous flux can be improved.
【0049】そして、このように構成された電球形蛍光
ランプ11は、入力電力定格10Wで、3波長発光形蛍光
体の使用により、480lmの全光束が得られる。このと
き、電球形蛍光ランプ11のグローブ14および口金13を除
いたカバー12が外方に露出する表面積に対する入力電力
の割合は700W/m2以上であるとともに、発光管16
の容積に対する発光管16の入力電力の割合は300kW
/m3以上である。なお、発光管16の管壁負荷は0.1
W/cm2以上となるが、このように管壁負荷が高い発
光管16は点灯中かなりの高温となり、UV出力も強くな
るため、仕切体15に及ぼす熱的影響または紫外線照射に
よる影響は大きいものとなる。The bulb-shaped fluorescent lamp 11 thus constructed has an input power rating of 10 W and can obtain a total luminous flux of 480 lm by using a three-wavelength light emitting fluorescent material. At this time, the ratio of the input power to the surface area of the cover 12 excluding the globe 14 and the base 13 of the bulb-type fluorescent lamp 11 exposed to the outside is 700 W / m 2 or more, and the arc tube 16
The ratio of the input power of arc tube 16 to the volume of 300 kW
/ M 3 or more. The wall load of the arc tube 16 is 0.1.
W / cm 2 or more, but the arc tube 16 having such a high tube wall load has a considerably high temperature during lighting and the UV output also becomes strong, so that the thermal effect on the partition 15 or the effect of ultraviolet irradiation is large. Will be things.
【0050】また、図5には、電球形蛍光ランプ11の熱
の流れを模式的に示す。FIG. 5 schematically shows the heat flow of the bulb-type fluorescent lamp 11.
【0051】発光管16で発生する熱は、グローブ14内の
空気の対流および放射によりグローブ14に伝わる経路
と、仕切体15に伝わる経路と、発光管16のワイヤ47を通
じて回路基板51に伝わる経路とがある。The heat generated in the arc tube 16 is transmitted to the globe 14 by convection and radiation of air in the globe 14, a path to the partition body 15, and a path to the circuit board 51 through the wire 47 of the arc tube 16. There is.
【0052】点灯回路17への熱の流入は、発光管16のワ
イヤ47を通じて回路基板51に伝わる熱と、仕切体15から
伝わる熱とがある。The flow of heat into the lighting circuit 17 includes heat transferred to the circuit board 51 through the wire 47 of the arc tube 16 and heat transferred from the partition 15.
【0053】点灯回路17へ流入した熱と点灯回路17が自
己発熱した熱は、カバー12内の空気の対流および放射に
よりカバー12に伝わる経路と、口金13を通じて照明器具
に伝わる経路がある。The heat that flows into the lighting circuit 17 and the heat that the lighting circuit 17 self-heats have a path that is transmitted to the cover 12 by the convection and radiation of air in the cover 12, and a path that is transmitted to the lighting fixture through the base 13.
【0054】カバー12への熱の流入は、グローブ14から
伝わる熱と、仕切体15、回路基板51および口金13から空
気の対流により伝わる熱と、仕切体15から伝わる熱と、
点灯回路17からの放射により伝わる熱とがある。The heat flowing into the cover 12 includes the heat transmitted from the globe 14, the heat transmitted by the convection of air from the partition body 15, the circuit board 51 and the base 13, and the heat transmitted from the partition body 15.
There is heat transmitted by radiation from the lighting circuit 17.
【0055】そして、点灯回路17の温度上昇を抑制する
には、仕切体15から伝わる熱量を低減することが重要と
なる。In order to suppress the temperature rise of the lighting circuit 17, it is important to reduce the amount of heat transferred from the partition body 15.
【0056】図6には、電球形蛍光ランプ11を点灯させ
た状態で入力電力を変化させた場合の点灯回路17の平均
温度を測定した実験結果を示す。実験は、仕切体15をポ
リブチレンテレフタレート(PBT)の樹脂のみで形成
した実験例Aと、仕切体15にアルミニウムの金属の仕切
板26を一体形成した実験例Bとで、電源電圧を変動させ
て入力電力を変化させる。周囲温度は25℃で、温度測
定は2つのスイッチング素子、バラスト、REC、予熱
コンデンサ、DCカットコンデンサ、ゲート共振インダ
クタ、平滑用電解コンデンサの8箇所を測定した単純平
均値とする。ポリブチレンテレフタレート(PBT)の
熱伝導率は0.3W/mK、アルミニウムの熱伝導率は
298W/mKである。FIG. 6 shows the results of an experiment in which the average temperature of the lighting circuit 17 was measured when the input power was changed while the compact fluorescent lamp 11 was lit. In the experiment, the power supply voltage was varied between an experimental example A in which the partition 15 was formed only of a resin of polybutylene terephthalate (PBT) and an experimental example B in which the partition plate 26 made of aluminum metal was integrally formed on the partition 15. Change the input power. The ambient temperature is 25 ° C., and the temperature measurement is a simple average value obtained by measuring two switching elements, ballast, REC, preheating capacitor, DC cut capacitor, gate resonance inductor and smoothing electrolytic capacitor. The thermal conductivity of polybutylene terephthalate (PBT) is 0.3 W / mK, and the thermal conductivity of aluminum is 298 W / mK.
【0057】実験の結果、仕切体15に金属製の仕切板26
を一体形成した実験例Bは、金属製の仕切板26を使用し
ない樹脂のみの実験例Aに比べて、平均温度が5℃程度
低減した。As a result of the experiment, a partition plate 26 made of metal is attached to the partition body 15.
In the experimental example B in which the metal plate was integrally formed, the average temperature was reduced by about 5 ° C. as compared with the experimental example A in which the metal partition plate 26 was not used and only the resin was used.
【0058】これは、金属製の仕切板26を用いた場合、
仕切板26の熱伝導率が高いので、図5に示したように、
仕切板26からカバー12に伝わる熱量が増加し、これによ
り、仕切板26から点灯回路17へ伝わる熱量が減少し、点
灯回路17の過度の温度上昇を低減できる。言い換えれ
ば、仕切板26により発光管16の熱を遮断し、点灯回路17
の過度の温度上昇を低減できる。When the metal partition plate 26 is used,
Since the partition plate 26 has a high thermal conductivity, as shown in FIG.
The amount of heat transferred from the partition plate 26 to the cover 12 is increased, whereby the amount of heat transferred from the partition plate 26 to the lighting circuit 17 is reduced, and an excessive rise in temperature of the lighting circuit 17 can be reduced. In other words, the partition plate 26 shuts off the heat of the arc tube 16 and the lighting circuit 17
The excessive temperature rise of can be reduced.
【0059】さらに、カバー12側に仕切板26に接触する
金属製の放熱部21を設けることにより、仕切板26から放
熱部21に伝わってくる熱を外部へ効率よく逃がすことが
できる。放熱部21からは、外気との対流によって奪われ
る熱と、熱放射によって奪われる熱とがある。Further, by providing the metal heat dissipation portion 21 in contact with the partition plate 26 on the cover 12 side, the heat transmitted from the partition plate 26 to the heat dissipation portion 21 can be efficiently dissipated to the outside. From the heat dissipation part 21, there are heat taken away by convection with the outside air and heat taken away by heat radiation.
【0060】電球形蛍光ランプ11では、カバー12の温度
が80℃近くまで上昇するので、放熱部21からの熱放射
は有効であるが、アルミニウムのような金属の熱放射率
は0.1以下と低く、放熱部21の金属面が露出したまま
では十分な熱放射が得られない。そこで、放熱部21の表
面に、アルミニウムに比べて熱放射率が高い白色アクリ
ル塗料を塗装したり、白色アルマイト処理などの表面処
理加工を施して、熱放射層23を形成することにより、熱
放射性を向上できる。しかも、放熱部21を白色にするこ
とにより、照明器具内で電球形蛍光ランプ11を点灯した
場合に、光の反射率が高く、器具効率を向上できるとと
もに、外観的にも向上できる。In the light bulb type fluorescent lamp 11, since the temperature of the cover 12 rises to about 80 ° C., the heat radiation from the heat radiating portion 21 is effective, but the heat radiation rate of metal such as aluminum is 0.1 or less. Since the metal surface of the heat dissipation part 21 is exposed, sufficient heat radiation cannot be obtained. Therefore, the surface of the heat dissipation portion 21 is coated with a white acrylic paint having a higher heat emissivity than aluminum, or subjected to a surface treatment such as a white alumite treatment to form the heat emissive layer 23. Can be improved. Moreover, by making the heat radiating portion 21 white, when the bulb-shaped fluorescent lamp 11 is turned on in the lighting fixture, the reflectance of light is high, the efficiency of the fixture can be improved, and the appearance can be improved.
【0061】樹脂製のカバー12の発光管16側の一部にの
み放熱部21を設けることにより、仕切板26から伝わる熱
を放熱部21の部分で効率よく放熱させ、放熱部21から樹
脂製のカバー12の部分へ伝わる熱を少なくし、カバー12
の温度を低くしてカバー12内の熱がカバー12を通じて外
部へ逃げやすくでき、点灯回路17の温度上昇を低減でき
る。By disposing the heat dissipating portion 21 only on a part of the resin cover 12 on the side of the arc tube 16, the heat transmitted from the partition plate 26 is efficiently dissipated at the heat dissipating portion 21, and the heat dissipating portion 21 is made of resin. The heat transferred to the cover 12 part of the
The temperature inside the cover 12 can be lowered so that the heat inside the cover 12 can easily escape to the outside through the cover 12, and the temperature rise of the lighting circuit 17 can be reduced.
【0062】このように、電球形蛍光ランプ11によれ
ば、発光管16側に配置される金属製の仕切板26と発光管
16側に対して反対側の非発光管側に配置される樹脂製の
保持部27とを一体形成した仕切体15を用いるため、この
仕切体15の仕切板26側に発光管16を、保持部27側に点灯
回路17をそれぞれ一体に取り付けてカバー12に組み立て
ることができる。As described above, according to the bulb-type fluorescent lamp 11, the metallic partition plate 26 disposed on the side of the arc tube 16 and the arc tube.
Since the partition body 15 integrally formed with the resin holding portion 27 arranged on the non-light emitting tube side opposite to the 16 side is used, the light emitting tube 16 is held on the partition plate 26 side of this partition body 15. The lighting circuit 17 can be integrally attached to the part 27 side and assembled to the cover 12.
【0063】しかも、発光管16側に配置される金属製の
仕切板26によって、寿命末期時の電極38の温度上昇によ
る仕切体15の保持部27やカバー12などの樹脂部分の溶融
や劣化などを防止するなど、発光管16の温度上昇による
樹脂部分や点灯回路17などへの熱的影響を低減できる。
さらに、熱伝導率の高い金属製の仕切板26からカバー12
側に効率よく熱を伝達でき、仕切体15から点灯回路17へ
伝わる熱を抑制し、点灯回路17の点灯特性に影響する過
度の温度上昇を低減できる。Moreover, the metal partition plate 26 disposed on the side of the arc tube 16 melts or deteriorates the resin portion such as the holding portion 27 of the partition body 15 and the cover 12 due to the temperature rise of the electrode 38 at the end of its life. It is possible to reduce the thermal influence on the resin part, the lighting circuit 17, etc. due to the temperature rise of the arc tube 16.
In addition, the metal partition plate 26, which has a high thermal conductivity, covers the cover 12
The heat can be efficiently transferred to the side, the heat transferred from the partition 15 to the lighting circuit 17 can be suppressed, and an excessive temperature rise that affects the lighting characteristics of the lighting circuit 17 can be reduced.
【0064】さらに、仕切板26が金属製であるため、樹
脂の場合のような発光管16からの熱や紫外線による劣化
の影響がなく、光束低下や点灯回路17への影響を防止で
きる。すなわち、樹脂の場合のように、仕切板26が茶褐
色に変色して光反射率が低下したり樹脂の劣化物がグロ
ーブ14に付着して光透過率が低下することによる光束低
下や、樹脂に含まれる難燃剤から放出されるガス成分に
よる点灯回路17の電気部品への影響に関して、確実に防
止できる。Further, since the partition plate 26 is made of metal, there is no influence of deterioration due to heat or ultraviolet rays from the arc tube 16 as in the case of resin, and it is possible to prevent a decrease in luminous flux and an influence on the lighting circuit 17. That is, as in the case of a resin, the partition plate 26 changes its color to dark brown to lower the light reflectance, or a deteriorated product of the resin adheres to the globe 14 to lower the light transmittance, or to the resin. It is possible to reliably prevent the influence of the gas component released from the contained flame retardant on the electric parts of the lighting circuit 17.
【0065】したがって、電球形蛍光ランプ11のグロー
ブ14および口金13を除いたカバー12が外方に露出する表
面積に対する入力電力の割合は700W/m2以上とす
るとともに、発光管16の容積に対する発光管16の入力電
力の割合は300kW/m3以上とする発光管16を用い
ることにより、電球形蛍光ランプ11を小形化でき、その
うえで発光管16からの樹脂部分や点灯回路17への影響を
低減できる。Therefore, the ratio of the input power to the surface area of the cover 12 excluding the globe 14 and the base 13 of the bulb-type fluorescent lamp 11 exposed to the outside is 700 W / m 2 or more, and the volume of the arc tube 16 emits light. The ratio of the input power of the tube 16 is 300 kW / m 3 or more. By using the arc tube 16, the bulb-shaped fluorescent lamp 11 can be downsized, and the influence of the arc tube 16 on the resin part and the lighting circuit 17 is reduced. it can.
【0066】また、カバー12の内部は密閉された空間で
あるため、このカバー12内に収容される点灯回路17が過
度に温度上昇して点灯特性に影響したり、カバー12内に
位置される発光管16の主アマルガム48が過度に温度上昇
して水銀蒸気圧を適正に保てなくなるなどの影響が生じ
る。そこで、カバー12内の温度低減のために、カバー12
の内面に例えばラッカー系の黒色の塗料を塗布して熱吸
収層24を形成している。熱吸収層24の熱放射率は0.8
以上である。Further, since the inside of the cover 12 is a sealed space, the lighting circuit 17 accommodated in the cover 12 excessively rises in temperature to affect the lighting characteristics, or is placed in the cover 12. The temperature of the main amalgam 48 of the arc tube 16 rises excessively, and the mercury vapor pressure cannot be maintained properly. Therefore, in order to reduce the temperature inside the cover 12,
The heat absorbing layer 24 is formed by applying, for example, a lacquer type black paint to the inner surface of the. The thermal emissivity of the heat absorption layer 24 is 0.8
That is all.
【0067】図5に示したように、カバー12には、仕切
体15および点灯回路17からの放射によって伝わる熱、お
よび仕切体15および点灯回路17からカバー12内の空気の
対流で伝わる熱がある。As shown in FIG. 5, in the cover 12, heat transferred by radiation from the partition 15 and the lighting circuit 17 and heat transferred by convection of air in the cover 12 from the partition 15 and the lighting circuit 17 are transferred. is there.
【0068】図7には、カバー12の内面に熱吸収層24を
形成していない場合の熱放射率を0.08、カバー12の
内面に熱吸収層24を形成した場合の熱放射率を0.8と
して、カバー12の下部側および上部側における熱流量を
計算した計算結果を示す。熱放射率を上げることによ
り、カバー12の熱流量が、下部側で0.96−0.76
=0.2W、上部側で0.84−0.75=0.09W
増加した。このカバー12の熱流量の増加に伴い、点灯回
路17の平均気温が例えば111.5℃であった場合に、
105.4℃に低減される計算結果が得られた。FIG. 7 shows the heat emissivity when the heat absorption layer 24 is not formed on the inner surface of the cover 12 and 0.08, and the heat emissivity when the heat absorption layer 24 is formed on the inner surface of the cover 12. A calculation result of calculating the heat flow rates on the lower side and the upper side of the cover 12 is shown as 0.8. By increasing the thermal emissivity, the heat flow rate of the cover 12 is 0.96-0.76 on the lower side.
= 0.2W, 0.84-0.75 = 0.09W on the upper side
Increased. When the average air temperature of the lighting circuit 17 is, for example, 111.5 ° C. as the heat flow rate of the cover 12 increases,
A calculation result was obtained that was reduced to 105.4 ° C.
【0069】図8(a)には、カバー12の内面に熱吸収層2
4を形成しない実験例Cと、カバー12の内面に熱吸収層2
4を形成した実験例Dとで、電球形蛍光ランプ11への入
力電力を変化させた場合の主アマルガム48の部分の温度
を測定した実験結果を示す。また、図8(b)には、カバ
ー12の内面に熱吸収層24を形成しない実験例Cと、カバ
ー12の内面に熱吸収層24を形成した実験例Dとで、電球
形蛍光ランプ11への入力電力を変化させた場合の点灯回
路17の回路部品の1つであるコンデンサの部分の温度を
測定した実験結果を示す。In FIG. 8A, the heat absorption layer 2 is formed on the inner surface of the cover 12.
Experimental example C in which 4 is not formed, and the heat absorption layer 2 is formed on the inner surface of the cover 12.
Experimental example D in which 4 is formed and experimental results of measuring the temperature of the main amalgam 48 portion when the input power to the bulb-type fluorescent lamp 11 is changed are shown. In addition, in FIG. 8B, a light bulb type fluorescent lamp 11 includes an experimental example C in which the heat absorption layer 24 is not formed on the inner surface of the cover 12 and an experimental example D in which the heat absorption layer 24 is formed on the inner surface of the cover 12. The experimental result which measured the temperature of the capacitor part which is one of the circuit components of the lighting circuit 17 at the time of changing the input electric power to is shown.
【0070】実験の結果、カバー12の内面に熱吸収層24
を形成した実験例Dは、カバー12の内面に熱吸収層24を
形成しない実験例Cに比べて、温度が低減した。As a result of the experiment, the heat absorption layer 24 is formed on the inner surface of the cover 12.
In Experimental Example D in which the heat absorbing layer 24 was formed, the temperature was lower than that in Experimental Example C in which the heat absorption layer 24 was not formed on the inner surface of the cover 12.
【0071】これは、カバー12の内面に熱吸収層24を形
成した場合、図5に示したように、カバー12内の空気の
対流でカバー12に伝わる熱が、黒色塗料を塗布した熱吸
収層24の熱吸収作用によって効率よくカバー12側に吸収
され、カバー12を通じて外気に放熱されるためである。
これにより、カバー12内の過度の温度上昇を低減でき、
点灯回路17や主アマルガム48の過度に温度上昇を低減で
き、点灯回路17を保護し、水銀蒸気圧を適正に保つこと
ができる。This is because when the heat absorption layer 24 is formed on the inner surface of the cover 12, as shown in FIG. 5, the heat transmitted to the cover 12 by the convection of the air in the cover 12 is absorbed by applying the black paint. This is because the layer 24 efficiently absorbs heat on the cover 12 side and radiates heat to the outside air through the cover 12.
This can reduce excessive temperature rise in the cover 12,
Excessive temperature rise of the lighting circuit 17 and the main amalgam 48 can be reduced, the lighting circuit 17 can be protected, and the mercury vapor pressure can be maintained appropriately.
【0072】次に、図9ないし図11に第2の実施の形
態を示し、図9は電球形蛍光ランプの断面図、図10は
電球形蛍光ランプの仕切体の拡大断面図、図11は電球
形蛍光ランプの仕切体の底面図である。なお、前記第1
の実施の形態と同一構成については同一符号を用いてそ
の説明を省略する。Next, FIGS. 9 to 11 show a second embodiment. FIG. 9 is a sectional view of a compact fluorescent lamp, FIG. 10 is an enlarged sectional view of a partition of the compact fluorescent lamp, and FIG. It is a bottom view of the partition of a light bulb type fluorescent lamp. The first
The same components as those in the embodiment are designated by the same reference numerals and the description thereof will be omitted.
【0073】仕切体15は、発光管16に対向する面の少な
くとも中央部に配設された金属製の仕切板26と、仕切板
26の周囲に配置されて点灯回路17を保持する樹脂製の保
持部27とが、例えばインサート成形またはスナップショ
ットにて組み合わせて一体化形成されている。なお、こ
の金属製の仕切板26は発光管16を支持する部材を兼用し
てもよく、発光管16の支持はもっぱら樹脂製の保持部27
にしてもよい。The partition body 15 includes a partition plate 26 made of metal, which is disposed at least in the center of the surface facing the arc tube 16, and a partition plate.
A resin holding portion 27 that is arranged around 26 and holds the lighting circuit 17 is integrally formed by combining by, for example, insert molding or snapshot. The metal partition plate 26 may also serve as a member for supporting the arc tube 16, and the arc tube 16 is supported exclusively by a resin holding portion 27.
You may
【0074】仕切板26は、カバー12の材質に比べて熱伝
導率の高い例えばアルミニウムなどの金属材料にて0.
3〜2mmの板厚の円板状に形成されており、仕切板26
の内側には発光管16の各管体39の対の各直管部41が挿通
される略くの字状の対の取付孔28が形成されている。こ
れら対の取付孔32に発光管16の各管体39の対の各直管部
41が挿通された状態で、仕切板26の上面側と発光管16と
の間に例えばシリコーン樹脂などの接着剤33が充填され
て固定されている。仕切板26の板厚は0.3mmより薄
いと強度が低く、2mmを超えると包装状態での落下試
験で発光管16やカバー12に損傷を与える。The partition plate 26 is made of a metal material, such as aluminum, which has a higher thermal conductivity than that of the cover 12.
It is formed in a disk shape with a plate thickness of 3 to 2 mm, and has a partition plate 26.
Inside, a pair of substantially V-shaped mounting holes 28 through which the straight tube portions 41 of the tube bodies 39 of the arc tube 16 are inserted are formed. Each straight tube portion of each tube body 39 of the arc tube 16 is fitted into the pair of mounting holes 32.
With 41 inserted, an adhesive 33 such as silicone resin is filled and fixed between the upper surface side of the partition plate 26 and the arc tube 16. If the thickness of the partition plate 26 is thinner than 0.3 mm, the strength is low, and if it exceeds 2 mm, the arc tube 16 and the cover 12 are damaged by the drop test in the packaged state.
【0075】保持部27は、例えばポリブチレンテレフタ
レート(PBT)などの耐熱性合成樹脂材料にて形成さ
れており、仕切板26の周囲に配置される環状の仕切板保
持環61を有し、この仕切板保持環61の内周に仕切板26の
周縁部が密着嵌合している嵌合溝62が形成されている。
仕切板保持環61の上端には仕切板保持環61の外周面から
突出してカバー12に取り付けられる環状のカバー取付部
63が形成され、このカバー取付部63の外周にカバー12の
内面から突設される図示しない係止突部に係止する係止
溝64が形成されている。仕切板保持環61の上端でカバー
取付部63の内周部には点灯回路17の回路基板51を保持す
る複数の回路基板保持爪65が形成されている。The holding portion 27 is made of a heat-resistant synthetic resin material such as polybutylene terephthalate (PBT), and has an annular partition plate retaining ring 61 arranged around the partition plate 26. A fitting groove 62 is formed in the inner periphery of the partition plate holding ring 61 so that the peripheral edge of the partition plate 26 is closely fitted.
An annular cover mounting portion that is attached to the cover 12 by protruding from the outer peripheral surface of the partition plate retaining ring 61 is provided on the upper end of the partition plate retaining ring 61.
A cover groove 63 is formed on the outer periphery of the cover mounting portion 63 so as to be locked by a lock protrusion (not shown) protruding from the inner surface of the cover 12. A plurality of circuit board holding claws 65 for holding the circuit board 51 of the lighting circuit 17 are formed on the inner periphery of the cover mounting portion 63 at the upper end of the partition plate holding ring 61.
【0076】また、発光管16は、中央の管体39の高さH
1が35〜40mm、両側の管体39の高さH2が35〜4
0mm、かつH1>H2の関係を有している。中央の管体
39の高さH1および両側の管体39の高さH2は、バルブ封
止端部から屈曲部40の頂部までの長さを意味する。Further, the arc tube 16 has a height H of the central tube body 39.
1 is 35 to 40 mm, and the height H2 of the tubular body 39 on both sides is 35 to 4
The relationship is 0 mm and H1> H2. Central tube
The height H1 of 39 and the height H2 of the tubular bodies 39 on both sides mean the length from the valve sealing end to the top of the bent portion 40.
【0077】管外径dが5〜10mmである3本の管体
39をそのU字形の面が互いに対向するように並設して接
続された発光管16は、中央の管体39のバルブ並設方向と
交差する方向の幅寸法aが30〜35mmであり、発光
管17のバルブ並設方向の幅寸法をb、両側の管体39のバ
ルブ並設方向と交差する方向の幅寸法をcとしたとき、
0.9a≧b≧0.75a 0.9a≧c≧0.75a
となる関係を有している。Three pipes having an outer diameter d of 5 to 10 mm
The arc tubes 16 connected by arranging 39 so that their U-shaped surfaces face each other have a width dimension a of 30 to 35 mm in the direction intersecting the bulb arranging direction of the central tube body 39, When the width dimension of the arc tube 17 in the valve juxtaposition direction is b and the width dimension of the tube bodies 39 on both sides in the direction intersecting the bulb juxtaposition direction is c,
0.9a ≧ b ≧ 0.75a 0.9a ≧ c ≧ 0.75a
Have a relationship such that
【0078】例えば、中央の管体39の幅寸法aは約32
mm程度、両側の管体39の幅寸法cは約26mm程度、
発光管16の幅寸法bは約26mm程度に形成されてい
る。これら幅寸法に対応して、中央の管体39の屈曲部40
と各直管部41の端部との高さ方向の管長は約37mm程
度、両側の管体39の屈曲部40と各直線部41の端部との高
さ方向の管長は約34mm程度に形成されている。For example, the width a of the central tube 39 is about 32.
mm, the width c of the tubular body 39 on both sides is about 26 mm,
The width dimension b of the arc tube 16 is formed to be about 26 mm. Corresponding to these width dimensions, the bent portion 40 of the central tube 39
And the pipe length in the height direction between the end of each straight pipe portion 41 is about 37 mm, and the pipe length in the height direction between the bent portion 40 of the tubular body 39 on both sides and the end of each straight portion 41 is about 34 mm. Has been formed.
【0079】bが0.9aを越えると、発光管16の対角
線方向の幅が大きくなり、小形化に適さない。bが0.
75a未満だと、発光管16の回転方向の配光が不均一に
なるため好ましくない。cが0.9aを越えると、発光
管16の対角線方向の幅が大きくなり、小形化に適さな
い。cが0.75a未満だと、発光管16の放電路長が短
くなり、ランプ効率が低下してしまう。If b exceeds 0.9a, the width of the arc tube 16 in the diagonal direction becomes large, which is not suitable for downsizing. b is 0.
If it is less than 75a, the light distribution in the rotating direction of the arc tube 16 becomes uneven, which is not preferable. If c exceeds 0.9a, the width of the arc tube 16 in the diagonal direction becomes large, which is not suitable for downsizing. If c is less than 0.75a, the discharge path length of the arc tube 16 is shortened, and the lamp efficiency is reduced.
【0080】このように、発光管16のバルブ並設方向の
幅寸法bの規定により、各管体39が接近し、さらに、こ
れら各管体39の接近により、発光管16の寸法制約のなか
で、両側の管体39の幅寸法cを長くして放電路長を確保
できるとともに、グローブ14との距離が大きくなってそ
の分だけ管体39の高さ方向も大きくして放電路長を長く
でき、したがって、発光管16の寸法制約のなかで、小形
化を図りつつ、発光管16の放電路長を確保し、発光効率
を向上できる。As described above, the respective tube bodies 39 approach each other due to the regulation of the width dimension b of the arc tube 16 in the juxtaposed direction of the bulbs. Then, the width dimension c of the tube body 39 on both sides can be lengthened to secure the discharge path length, and the distance to the globe 14 is increased, and the height direction of the tube body 39 is correspondingly increased to increase the discharge path length. Therefore, the length of the discharge tube 16 can be increased, so that the discharge path length of the discharge tube 16 can be secured and the light emission efficiency can be improved while the size of the discharge tube 16 is reduced.
【0081】また、発光管16は、中央の管体39の高さH
1が35〜40mm、両側の管体39の高さH2が35〜4
0mm、かつH1>H2であるとともに、放電路長が12
0〜200mmであり、ランプ電力7〜12Wで点灯し
たときの全光束が450lm以上、ランプ効率が45l
m/W以上となるように構成されている。このとき、電
球形蛍光ランプ11のグローブ14および口金13を除いたカ
バー12が外方に露出する表面積に対する入力電力の割合
は700W/m2以上であるとともに、発光管16の容積
に対する発光管16の入力電力の割合は300kW/m3
以上である。この発光管16を用いた電球形蛍光ランプ11
は、小形白熱電球と同等の光出力で、略同サイズの光源
とすることができる。The arc tube 16 has a height H of the central tube body 39.
1 is 35 to 40 mm, and the height H2 of the tubular body 39 on both sides is 35 to 4
0 mm, H1> H2, and the discharge path length is 12
The total luminous flux is 450 lm or more and the lamp efficiency is 45 l when the lamp is powered by 7 to 12 W.
It is configured to be m / W or more. At this time, the ratio of the input power to the surface area of the cover 12 excluding the globe 14 and the base 13 of the bulb-shaped fluorescent lamp 11 exposed to the outside is 700 W / m 2 or more, and the volume of the arc tube 16 corresponds to the arc tube 16. Input power ratio is 300 kW / m 3
That is all. Light bulb type fluorescent lamp 11 using this arc tube 16
Can be used as a light source having a light output equivalent to that of a small incandescent light bulb and having substantially the same size.
【0082】放電路長は、小形白熱電球と略同等の光出
力とするためには120mm以上必要であることが実験
により確認された。すなわち、放電路長が120mm未
満であると、所望の光出力が得られず、また、発光に寄
与しない電極損失部分の放電路長に占める割合が大きく
なるため、所望のランプ効率が得られない。したがっ
て、放電路長は120mm以上必要である。しかし、放
電路長が200mmを超えると、ランプ始動電圧が過度
に高くなり、小形白熱電球と略同等の外形寸法内に収容
される小形インバータ回路では十分な始動電圧を発生さ
せるのが困難なことから、放電路長は120〜200m
mとしている。It has been confirmed by experiments that the discharge path length needs to be 120 mm or more in order to obtain a light output substantially equal to that of a small incandescent lamp. That is, if the discharge path length is less than 120 mm, the desired light output cannot be obtained, and the ratio of the electrode loss portion that does not contribute to light emission to the discharge path length increases, so that the desired lamp efficiency cannot be obtained. . Therefore, the discharge path length needs to be 120 mm or more. However, if the discharge path length exceeds 200 mm, the lamp starting voltage becomes excessively high, and it is difficult to generate a sufficient starting voltage in a small inverter circuit housed within the external dimensions that are approximately the same as the small incandescent lamp. Therefore, the discharge path length is 120-200m
m.
【0083】小形白熱電球と略同等の外形寸法内に発光
管16を収めるためには、発光菅16は、最大幅を45mm
以下、好ましくは40mm以下にしなければならず、高
さも40mm以下に制約される。この条件下で放電路長
が120〜200mmとなる発光管16を得るために管径
の異なる種々のバルブで点灯試験を行ったところ、管外
径5〜10mmおよび高さ35〜40mmの範囲内の中
央の管体39を組み合わせて発光管16を構成すれば、十分
な光出力とランプ効率が得られることが実験により確認
された。The maximum width of the arc tube 16 is 45 mm in order to fit the arc tube 16 within the outer dimensions of a small incandescent lamp.
Hereafter, it should be preferably 40 mm or less, and the height is also limited to 40 mm or less. Under this condition, in order to obtain the arc tube 16 having a discharge path length of 120 to 200 mm, a lighting test was conducted with various bulbs having different tube diameters, and the tube outer diameter was 5 to 10 mm and the height was 35 to 40 mm. It was confirmed by an experiment that sufficient light output and lamp efficiency can be obtained by constructing the arc tube 16 by combining the central tube body 39 of the above.
【0084】発光管16は、放電路長を120mm以上に
するために管外径を10mm以下に制限しているが、管
外径を10mm以下にすることでランプ電流を極力抑え
てランプ電圧を高くし、点灯回路効率を高くすることが
可能となった。すなわち、ランプ電流が多いほど点灯回
路17における熱損失が多くなり、この傾向は消費電力が
小さいほど顕著に表れるため、ランプ電力が12W以下
の発光管では放電路長を120〜200mmとし、管外
径を10mm以下にすることが望ましい。また、管外径
を5mm未満とすると、始動電圧が上昇するとともにラ
ンプ効率が低下し、また発光管16の製造上も煩雑となっ
てしまう。The outer diameter of the arc tube 16 is limited to 10 mm or less in order to make the discharge path length 120 mm or more. However, by setting the tube outer diameter to 10 mm or less, the lamp current is suppressed as much as possible and the lamp voltage is reduced. It has become possible to raise the lighting circuit efficiency. That is, as the lamp current increases, the heat loss in the lighting circuit 17 increases, and this tendency becomes more remarkable as the power consumption decreases. Therefore, in the arc tube with a lamp power of 12 W or less, the discharge path length is 120 to 200 mm. It is desirable that the diameter be 10 mm or less. When the outer diameter of the tube is less than 5 mm, the starting voltage increases and the lamp efficiency decreases, and the arc tube 16 is also complicated to manufacture.
【0085】したがって、中央の管体39は、管外径5〜
10mm、最大高さが35〜40mmの範囲内である。
製造工程や発光管効率を考慮すると、中央の管体39の最
大高さは30〜55mmとすることが好ましい場合もあ
るが、製造工程や発光管効率に影響しなければ、高さを
35〜40mmの範囲内とすることが望ましい。Therefore, the central pipe 39 has a pipe outer diameter of 5 to 5.
10 mm and the maximum height is within the range of 35 to 40 mm.
In consideration of the manufacturing process and arc tube efficiency, it may be preferable that the maximum height of the central tube body 39 is 30 to 55 mm, but if the manufacturing process and arc tube efficiency are not affected, the height is 35 to 35 mm. It is desirable to set it within the range of 40 mm.
【0086】中央の管体39の高さH1が40mmを超え
ると、小形白熱電球と同等の寸法を実現するのが困難で
あり、35mm未満では、所望の放電路長を確保するこ
とが困難となる。If the height H1 of the central tube 39 exceeds 40 mm, it is difficult to achieve the same size as a small incandescent lamp, and if it is less than 35 mm, it is difficult to secure a desired discharge path length. Become.
【0087】両側の管体39の高さH2が36mmを超え
ると、中央の管体39の屈曲部40の形状と相似した隣接す
る屈曲部頂部間の段差が実現できず、発光管16の回転対
称性が損なわれ、30mm未満では、所望の放電路長を
確保することが困難となる。When the height H2 of the tube bodies 39 on both sides exceeds 36 mm, the step between the adjacent bent portion tops similar to the shape of the bent portion 40 of the central tube 39 cannot be realized, and the arc tube 16 rotates. The symmetry is impaired, and if it is less than 30 mm, it becomes difficult to secure a desired discharge path length.
【0088】そして、このように構成された電球形蛍光
ランプ11によれば、発光管16に対向する面の少なくとも
中央部に配設された金属製の仕切板26、およびこの仕切
板26の周囲に配置される樹脂製の保持部27とを有する仕
切体15を用いるため、この仕切体15の仕切板26に発光管
16を、保持部27に点灯回路17をそれぞれ一体に取り付け
て保持部27を介してカバー12に容易に組み立てることが
できる。According to the light bulb type fluorescent lamp 11 thus constructed, the metallic partition plate 26 is provided at least at the center of the surface facing the arc tube 16, and the periphery of the partition plate 26. Since the partition body 15 having the resin-made holding portion 27 disposed in the partition body 15 is used, the arc tube is attached to the partition plate 26 of the partition body 15.
The lighting circuit 17 can be integrally attached to the holding portion 27 and the lighting device 16 can be easily assembled to the cover 12 via the holding portion 27.
【0089】しかも、発光管16に対向する金属製の仕切
板26によって発光管16の温度上昇による樹脂部分や点灯
回路17などへの熱的影響を低減できるとともに、熱伝導
率の高い金属製の仕切板26からカバー12側に効率よく熱
を伝達でき、仕切体15から点灯回路17へ伝わる熱を抑制
し、点灯回路17の温度上昇を低減できる。特に、仕切板
26の取付孔28に挿通させた発光管16の端部をシリコーン
樹脂などの接着剤33で仕切板26に接着固定しているた
め、発光管16の熱を接着剤33を通じて金属製の仕切板26
に効率よく伝達でき、点灯回路17への熱的影響を低減で
きる。Moreover, the metal partition plate 26 facing the arc tube 16 can reduce the thermal influence on the resin portion, the lighting circuit 17, etc. due to the temperature rise of the arc tube 16, and can be made of metal having a high thermal conductivity. The heat can be efficiently transferred from the partition plate 26 to the cover 12 side, the heat transferred from the partition body 15 to the lighting circuit 17 can be suppressed, and the temperature rise of the lighting circuit 17 can be reduced. In particular, partition boards
Since the end portion of the arc tube 16 inserted through the mounting hole 28 of the 26 is adhered and fixed to the partition plate 26 with an adhesive 33 such as a silicone resin, the heat of the arc tube 16 is passed through the adhesive 33 to make a metal partition plate. 26
Can be efficiently transmitted to the lighting circuit 17, and the thermal influence on the lighting circuit 17 can be reduced.
【0090】さらに、仕切板26が金属製であるため、樹
脂の場合のような発光管16からの熱や紫外線による劣化
の影響がなく、光束低下や点灯回路17への影響を防止で
きる。すなわち、樹脂の場合のように、仕切板26が茶褐
色に変色して光反射率が低下したり樹脂の劣化物がグロ
ーブ14に付着して光透過率が低下することによる光束低
下や、樹脂に含まれる難燃剤から放出されるガス成分に
よる点灯回路17の電気部品への影響に関して、確実に防
止できる。Further, since the partition plate 26 is made of metal, there is no influence of deterioration due to heat or ultraviolet rays from the arc tube 16 as in the case of resin, and it is possible to prevent a decrease in luminous flux and an influence on the lighting circuit 17. That is, as in the case of a resin, the partition plate 26 changes its color to dark brown to lower the light reflectance, or a deteriorated product of the resin adheres to the globe 14 to lower the light transmittance, or to the resin. It is possible to reliably prevent the influence of the gas component released from the contained flame retardant on the electric parts of the lighting circuit 17.
【0091】したがって、電球形蛍光ランプ11のグロー
ブ14および口金13を除いたカバー12が外方に露出する表
面積に対する入力電力の割合は700W/m2以上とす
るとともに、発光管16の容積に対する発光管16の入力電
力の割合は300kW/m3以上として、電球形蛍光ラ
ンプ11を小形化でき、そのうえで発光管16からの樹脂部
分や点灯回路17への影響を低減できる。Therefore, the ratio of the input power to the surface area of the cover 12 excluding the globe 14 and the base 13 of the bulb-type fluorescent lamp 11 is 700 W / m 2 or more, and the volume of the arc tube 16 emits light. The ratio of the input power of the tube 16 is 300 kW / m 3 or more, so that the compact fluorescent lamp 11 can be miniaturized, and the influence of the arc tube 16 on the resin portion and the lighting circuit 17 can be reduced.
【0092】次に、図12に第3の実施の形態を示し、
図12は電球形蛍光ランプの一部の断面図である。な
お、前記各実施の形態と同一構成については同一符号を
用いてその説明を省略する。Next, FIG. 12 shows a third embodiment,
FIG. 12 is a sectional view of a part of the bulb-type fluorescent lamp. The same components as those in each of the above-described embodiments are designated by the same reference numerals and the description thereof will be omitted.
【0093】カバー12が例えばアルミニウムなどの金属
材料によって形成される。カバー12の外面には、熱放射
率が高い白色アクリル塗料を塗装したり、白色アルマイ
ト処理などの表面処理加工を施して、熱放射層を形成し
てもよい。The cover 12 is made of a metal material such as aluminum. The outer surface of the cover 12 may be coated with a white acrylic paint having a high heat emissivity, or may be subjected to a surface treatment such as a white alumite treatment to form a heat emissive layer.
【0094】カバー12の内側には、例えばポリブチレン
テレフタレート(PBT)などの絶縁性を有する耐熱性
合成樹脂材料で形成した絶縁体71が一体的に組み込まれ
ている。この絶縁体71には、カバー12の上端から突出し
て口金13が取り付けられる口金取付部72、カバー12の内
面に接触配置されるカバー部73、およびこのカバー部73
の下端から突出されて回路基板51を保持する複数のホル
ダ部74が一体に形成されている。なお、絶縁体71は、金
属製のカバー12に一体成形することでも形成できる。An insulator 71 made of a heat-resistant synthetic resin material having an insulating property such as polybutylene terephthalate (PBT) is integrally incorporated inside the cover 12. On the insulator 71, a base attachment portion 72 for protruding the upper end of the cover 12 to attach the base 13, a cover portion 73 arranged in contact with the inner surface of the cover 12, and the cover portion 73.
A plurality of holder parts 74 for projecting from the lower end of and holding the circuit board 51 are integrally formed. The insulator 71 can also be formed by integrally molding the cover 12 made of metal.
【0095】絶縁体71が組み込まれたカバー12に、発光
管16および点灯回路17が保持された仕切体15を組み付け
る。これにより、点灯回路17の回路基板51が絶縁体71の
ホルダ部74に係合して保持され、回路基板51上の電気部
品52がカバー部73の内側に絶縁状態に配置される。回路
基板51は、仕切体15および絶縁体71の両方に保持され、
カバー12内での位置が安定する。The partition 12 holding the arc tube 16 and the lighting circuit 17 is assembled to the cover 12 in which the insulator 71 is incorporated. As a result, the circuit board 51 of the lighting circuit 17 is engaged with and held by the holder portion 74 of the insulator 71, and the electric component 52 on the circuit board 51 is arranged inside the cover portion 73 in an insulated state. The circuit board 51 is held by both the partition body 15 and the insulator 71,
The position within the cover 12 is stable.
【0096】そして、電球形蛍光ランプ11の点灯時にお
いて、発光管16から発生した熱は、仕切体15に伝わり、
この仕切体15から金属製のカバー12に伝わり、この金属
製のカバー12から放熱される。金属製のカバー12は、仕
切体15から伝わってくる熱を外気との対流によって外部
へ効率よく逃がすことができるため、仕切体15から点灯
回路17へ伝わる熱量が減少し、カバー12内の過度の温度
上昇を抑制し、点灯回路17の過度の温度上昇を低減でき
る。When the bulb-type fluorescent lamp 11 is turned on, the heat generated from the arc tube 16 is transmitted to the partition body 15,
This partition body 15 propagates to the metal cover 12 and radiates heat from the metal cover 12. The metal cover 12 can efficiently dissipate the heat transmitted from the partition body 15 to the outside by convection with the outside air, so that the amount of heat transferred from the partition body 15 to the lighting circuit 17 is reduced, and the heat inside the cover 12 becomes excessive. The temperature rise of the lighting circuit 17 can be suppressed and the excessive temperature rise of the lighting circuit 17 can be reduced.
【0097】なお、仕切体15は金属製の仕切板26のみで
構成しても、前記実施の形態と同様の作用効果を奏す
る。この場合、仕切板26に別の保持部材を用いて点灯回
路17を保持したり、仕切板26をカバー12に直接または別
の取付部材を用いて取り付けるようにすればよい。Even if the partition 15 is composed of only the partition plate 26 made of metal, the same operational effect as that of the above-described embodiment can be obtained. In this case, the lighting circuit 17 may be held on the partition plate 26 by using another holding member, or the partition plate 26 may be attached to the cover 12 directly or by using another attachment member.
【0098】また、グローブ14を備えない品種の電球形
蛍光ランプにも適用でき、同様の作用効果が得られる。Further, the present invention can be applied to a bulb-type fluorescent lamp of a type that does not include the globe 14, and the same effect can be obtained.
【0099】また、発光管16のバルブ37の管体39は、3
本に限らず、4本以上でもよく、同様の作用効果が得ら
れる。The tube 39 of the bulb 37 of the arc tube 16 is 3
The number of books is not limited to four, and four or more books may be used, and similar effects can be obtained.
【0100】[0100]
【発明の効果】請求項1記載の電球形蛍光ランプによれ
ば、発光管側に配置される金属製の仕切板と非発光管側
に配置される樹脂製の保持部とを一体形成した仕切体を
用いるため、この仕切体の仕切板側に発光管を、保持部
側に点灯回路をそれぞれ一体に取り付けてカバーに組み
立てることができ、しかも、発光管側に配置される金属
製の仕切板によって発光管の温度上昇による樹脂部分や
点灯回路などへの熱的影響を低減できるとともに、熱伝
導率の高い金属製の仕切板からカバー側に効率よく熱を
伝達でき、仕切体から点灯回路へ伝わる熱を抑制し、点
灯回路の温度上昇を低減できる。さらに、仕切板が金属
製であるため、樹脂の場合のような発光管からの熱や紫
外線による劣化の影響がなく、光束低下や点灯回路への
影響を防止できる。According to the self-ballasted fluorescent lamp of the first aspect, a partition in which a metallic partition plate disposed on the arc tube side and a resin holding portion disposed on the non-arc tube side are integrally formed. Since the body is used, the arc tube can be integrally attached to the partition plate side of the partition body and the lighting circuit can be integrally attached to the holding portion side, and the partition plate made of metal can be arranged on the arc tube side. This can reduce the thermal effect on the resin part and lighting circuit due to the temperature rise of the arc tube, and can efficiently transfer heat from the metal partition plate with high thermal conductivity to the cover side, from the partition to the lighting circuit. The heat transmitted can be suppressed, and the temperature rise of the lighting circuit can be reduced. Further, since the partition plate is made of metal, there is no influence of deterioration due to heat or ultraviolet rays from the arc tube unlike in the case of resin, and it is possible to prevent a decrease in luminous flux and an influence on the lighting circuit.
【0101】請求項2記載の電球形蛍光ランプによれ
ば、請求項1記載の電球形蛍光ランプの効果に加えて、
カバーの外面に仕切板と接続される金属製の放熱部を設
けたため、仕切板から放熱部に伝わってくる熱の放熱性
を向上できる。According to the compact fluorescent lamp of the second aspect, in addition to the effect of the compact fluorescent lamp of the first aspect,
Since the metal heat radiation part connected to the partition plate is provided on the outer surface of the cover, the heat radiation performance of the heat transmitted from the partition plate to the heat radiation part can be improved.
【0102】請求項3記載の電球形蛍光ランプによれ
ば、仕切体に発光管および点灯回路をそれぞれ一体に取
り付けてカバーに組み立てることができ、しかも、仕切
体の発光管側に配置される金属製の仕切板によって発光
管の温度上昇による樹脂部分や点灯回路などへの熱的影
響を低減でき、熱伝導率の高い金属製の仕切板からカバ
ー側に効率よく熱を伝達できるとともに、カバー側の金
属製の放熱部で仕切板から伝わってくる熱を効率よく放
熱でき、したがって、仕切体から点灯回路へ伝わる熱を
抑制し、点灯回路の温度上昇を低減できる。さらに、仕
切板が金属製であるため、樹脂の場合のような発光管か
らの熱や紫外線による劣化の影響がなく、光束低下や点
灯回路への影響を防止できる。According to the bulb-type fluorescent lamp of the third aspect, the arc tube and the lighting circuit can be integrally attached to the partition body and assembled into the cover, and moreover, the metal is arranged on the arc tube side of the partition body. The partition plate made of metal can reduce the thermal effect on the resin part and the lighting circuit due to the temperature rise of the arc tube, and can efficiently transfer heat from the metal partition plate with high thermal conductivity to the cover side and the cover side. The heat radiated from the partition plate can be efficiently radiated by the metal heat radiating portion, so that the heat transmitted from the partition body to the lighting circuit can be suppressed and the temperature rise of the lighting circuit can be reduced. Further, since the partition plate is made of metal, there is no influence of deterioration due to heat or ultraviolet rays from the arc tube unlike in the case of resin, and it is possible to prevent a decrease in luminous flux and an influence on the lighting circuit.
【0103】請求項4記載の電球形蛍光ランプによれ
ば、請求項2または3記載の電球形蛍光ランプの効果に
加えて、放熱部の表面に塗装および表面処理加工のいず
れか一方を施したため、放熱部からの熱放射性を向上で
きる。According to the compact fluorescent lamp of the fourth aspect, in addition to the effect of the compact fluorescent lamp of the second or third aspect, the surface of the heat radiating portion is coated or surface-treated. The heat radiation from the heat radiation part can be improved.
【0104】請求項5記載の電球形蛍光ランプによれ
ば、発光管に対向する面の少なくとも中央部に配設され
た金属製の仕切板、およびこの仕切板の周囲に配置され
る樹脂製の保持部とを有する仕切体を用いるため、この
仕切体に発光管および点灯回路をそれぞれ一体に取り付
けてカバーに組み立てることができ、しかも、発光管に
対向する金属製の仕切板によって発光管の温度上昇によ
る樹脂部分や点灯回路などへの熱的影響を低減できると
ともに、熱伝導率の高い金属製の仕切板からカバー側に
効率よく熱を伝達でき、仕切体から点灯回路へ伝わる熱
を抑制し、点灯回路の温度上昇を低減できる。さらに、
仕切板が金属製であるため、樹脂の場合のような発光管
からの熱や紫外線による劣化の影響がなく、光束低下や
点灯回路への影響を防止できる。According to the fifth aspect of the self-ballasted fluorescent lamp of the present invention, the metallic partition plate is provided at least in the center of the surface facing the arc tube, and the resin partition plate is provided around the partition plate. Since a partition with a holding part is used, the arc tube and the lighting circuit can be integrally attached to this partition and assembled into the cover, and the temperature of the arc tube can be controlled by the metal partition plate facing the arc tube. It is possible to reduce the thermal influence on the resin part and the lighting circuit due to the rise, and also to efficiently transfer the heat from the metal partition plate with high thermal conductivity to the cover side, suppressing the heat transferred from the partition body to the lighting circuit. The temperature rise of the lighting circuit can be reduced. further,
Since the partition plate is made of metal, there is no effect of deterioration due to heat or ultraviolet rays from the arc tube unlike in the case of resin, and it is possible to prevent a decrease in luminous flux and an effect on the lighting circuit.
【0105】請求項6記載の電球形蛍光ランプによれ
ば、請求項1ないし5いずれか一記載の電球形蛍光ラン
プの効果に加えて、カバーの内面に熱吸収層を形成した
ため、カバー内の熱を効率よく吸収してカバーから外部
ヘ放熱でき、カバー内の温度上昇を低減できる。According to the light bulb type fluorescent lamp of the sixth aspect, in addition to the effect of the light bulb type fluorescent lamp of any one of the first to fifth aspects, the heat absorbing layer is formed on the inner surface of the cover. The heat can be efficiently absorbed and the heat can be radiated from the cover to the outside, and the temperature rise in the cover can be reduced.
【0106】請求項7記載の電球形蛍光ランプによれ
ば、請求項1ないし6いずれか一記載の電球形蛍光ラン
プの効果に加えて、グローブおよび口金を除いたカバー
が外方に露出している表面積に対する入力電力の割合は
700W/m2以上とするため、電球形蛍光ランプを小
形化できるとともに、小形化しても発光管からの樹脂部
分や点灯回路への影響を低減できる。According to the light bulb type fluorescent lamp of the seventh aspect, in addition to the effect of the light bulb type fluorescent lamp of any one of the first to sixth aspects, the cover excluding the globe and the base is exposed to the outside. Since the ratio of the input power to the existing surface area is 700 W / m 2 or more, the compact fluorescent lamp can be downsized, and even if it is downsized, the influence of the arc tube on the resin part and the lighting circuit can be reduced.
【0107】請求項8記載の電球形蛍光ランプによれ
ば、請求項1ないし7いずれか一記載の電球形蛍光ラン
プの効果に加えて、発光管の容積に対する発光管の入力
電力の割合は300kW/m3以上とするため、電球形
蛍光ランプを小形化できるとともに、小形化しても発光
管からの樹脂部分や点灯回路への影響を低減できる。According to the compact fluorescent lamp of the eighth aspect, in addition to the effect of the compact fluorescent lamp of any one of the first to seventh aspects, the ratio of the input power of the luminous tube to the volume of the luminous tube is 300 kW. Since / m 3 or more, the compact fluorescent lamp can be downsized, and even if downsized, the influence of the arc tube on the resin portion and the lighting circuit can be reduced.
【図1】本発明の一実施の形態を示す電球形蛍光ランプ
の断面図である。FIG. 1 is a sectional view of a bulb-type fluorescent lamp showing an embodiment of the present invention.
【図2】同上電球形蛍光ランプのグローブを透過した状
態の正面図である。FIG. 2 is a front view of the same bulb-type fluorescent lamp as seen through a globe.
【図3】同上電球形蛍光ランプの発光管の展開図であ
る。FIG. 3 is a development view of an arc tube of the above bulb-type fluorescent lamp.
【図4】同上電球形蛍光ランプの回路基板の平面図であ
る。FIG. 4 is a plan view of a circuit board of the above bulb-type fluorescent lamp.
【図5】同上電球形蛍光ランプの熱の流れを示す模式図
である。FIG. 5 is a schematic diagram showing a heat flow of the bulb-type fluorescent lamp.
【図6】同上電球形蛍光ランプの仕切体をポリブチレン
テレフタレート(PBT)の樹脂のみで形成した実験例
Aと仕切体に金属製の仕切板を一体形成した実験例Bと
について、電球形蛍光ランプへの入力電力を変化させた
場合の点灯回路の平均温度を測定した実験結果を示すグ
ラフである。FIG. 6 is the same as Example 1 in which the partition body of the bulb-type fluorescent lamp is made of only the resin of polybutylene terephthalate (PBT), and Experimental example B in which the partition body made of metal is integrally formed. It is a graph which shows the experimental result which measured the average temperature of the lighting circuit when input power to a lamp was changed.
【図7】同上電球形蛍光ランプのカバーの内面に熱吸収
層を形成しない場合の熱放射率を0.08、カバーの内
面に熱吸収層を形成した場合の熱放射率を0.8とし
て、カバーの下部側および上部側における熱流量を計算
した計算結果を示すグラフである。FIG. 7: Same as above, assuming that the heat emissivity when the heat absorption layer is not formed on the inner surface of the cover of the bulb-type fluorescent lamp is 0.08, and the heat emissivity when the heat absorption layer is formed on the inner surface of the cover is 0.8. 5 is a graph showing calculation results of heat flow rates calculated on the lower side and the upper side of the cover.
【図8】同上電球形蛍光ランプのカバーの内面に熱吸収
層を形成しない実験例Cと熱吸収層を形成した実験例D
とに関し、(a)に電球形蛍光ランプへの入力電力を変化
させた場合の主アマルガムの部分の温度を測定した実験
結果を示すグラフ、(b)に電球形蛍光ランプへの入力電
力を変化させた場合の点灯回路の回路部品の1つである
コンデンサの部分の温度を測定した実験結果を示すグラ
フである。FIG. 8 is an experimental example C in which a heat absorbing layer is not formed on the inner surface of the cover of the bulb-type fluorescent lamp and an experimental example D in which the heat absorbing layer is formed.
Regarding, and (a) is a graph showing the experimental results of measuring the temperature of the main amalgam part when the input power to the bulb-type fluorescent lamp is changed, (b) the input power to the bulb-type fluorescent lamp is changed It is a graph which shows the experimental result which measured the temperature of the capacitor part which is one of the circuit components of the lighting circuit at the time of making it.
【図9】本発明の第2の実施の形態を示す電球形蛍光ラ
ンプの断面図である。FIG. 9 is a sectional view of a light bulb shaped fluorescent lamp showing a second embodiment of the present invention.
【図10】同上電球形蛍光ランプの仕切体の拡大断面図
である。FIG. 10 is an enlarged cross-sectional view of a partition of the above bulb-type fluorescent lamp.
【図11】同上電球形蛍光ランプの仕切体の底面図であ
る。FIG. 11 is a bottom view of the partition of the above bulb-type fluorescent lamp.
【図12】本発明の第3の実施の形態を示す電球形蛍光
ランプの一部の断面図である。FIG. 12 is a partial cross-sectional view of a bulb-type fluorescent lamp showing a third embodiment of the present invention.
【符号の説明】 11 電球形蛍光ランプ 12 カバー 13 口金 15 仕切体 16 発光管 17 点灯回路 21 放熱部 24 熱吸収層 26 仕切板 27 保持部[Explanation of symbols] 11 Light bulb type fluorescent lamp 12 cover 13 Base 15 partitions 16 arc tube 17 Lighting circuit 21 Heat sink 24 Heat absorption layer 26 Partition board 27 Hold
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) F21S 5/00 E (72)発明者 松本 晋一郎 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 (72)発明者 松永 啓之 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 Fターム(参考) 3K014 AA04 LA06 LB04 5C043 AA09 AA13 CC09 CD03 CD06 DD39 EA19 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) F21S 5/00 E (72) Inventor Shinichiro Matsumoto 4-3-1, Higashishinagawa, Shinagawa-ku, Tokyo Toshiba Litec stock In-house (72) Inventor Hiroyuki Matsunaga 4-3-1, Higashishinagawa, Shinagawa-ku, Tokyo F-term (reference) within Toshiba Litec Co., Ltd. 3K014 AA04 LA06 LB04 5C043 AA09 AA13 CC09 CD03 CD06 DD39 EA19
Claims (8)
と;発光管側に配置される金属製の仕切板と非発光管側
に配置される樹脂製の保持部とが一体形成され、仕切板
に挿通した発光管を支持するとともに保持部に点灯回路
の少なくとも一部を保持した仕切体と;仕切体が取り付
けられ仕切体の保持部に保持された点灯回路を収容した
カバーと;カバーに取り付けられた口金と;を具備して
いることを特徴とする電球形蛍光ランプ。1. An arc tube; a lighting circuit for lighting the arc tube; a metal partition plate arranged on the arc tube side and a resin holding part arranged on the non-arc tube side are integrally formed; A partition body that supports the arc tube inserted through the partition plate and that holds at least a part of the lighting circuit in the holding portion; a cover that is attached to the partition body and that houses the lighting circuit held in the holding portion of the partition body; A bulb-type fluorescent lamp, comprising: a base attached to the.
製の放熱部が設けら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。2. A metal heat radiation part connected to the partition plate is provided on the outer surface of the cover.
The described bulb-shaped fluorescent lamp.
と;発光管側に配置される金属製の仕切板を有し、発光
管を支持するとともに非発光管側に点灯回路の少なくと
も一部を保持した仕切体と;仕切体が取り付けられ仕切
体に保持された点灯回路を収容したカバーと;カバーの
外面に設けられ仕切板と接続される金属製の放熱部と;
カバーに取り付けられた口金と;を具備していることを
特徴とする電球形蛍光ランプ。3. An arc tube; a lighting circuit for lighting the arc tube; and a metal partition plate arranged on the arc tube side to support the arc tube and at least one of the lighting circuits on the non-arc tube side. A partition body that holds the part; a cover that accommodates the lighting circuit that is attached to the partition body and that is held by the partition body;
A bulb-type fluorescent lamp, comprising: a base attached to a cover;
のいずれか一方が施されていることを特徴とする請求項
2または3記載の電球形蛍光ランプ。4. The bulb-type fluorescent lamp according to claim 2, wherein the surface of the heat radiating portion is coated or surface-treated.
と;発光管に対向する面の少なくとも中央部に配設され
た金属製の仕切板、および仕切板の周囲に配置され点灯
回路を保持した樹脂製の保持部を有し、発光管を支持す
るように構成された仕切体と;仕切体が取り付けられ仕
切体に保持された点灯回路を収容したカバーと;カバー
に取り付けられた口金と;を具備していることを特徴と
する電球形蛍光ランプ。5. An arc tube; a lighting circuit connected to the arc tube; a metallic partition plate disposed at least in the center of a surface facing the arc tube; and a lighting circuit arranged around the partition plate. A partition body having a resin-made holding portion for holding the arc tube and configured to support the arc tube; a cover to which the partition body is attached and which accommodates the lighting circuit held by the partition body; A light bulb-shaped fluorescent lamp, characterized in that it has a base.
ることを特徴とする請求項1ないし5いずれか一記載の
電球形蛍光ランプ。6. The bulb-type fluorescent lamp according to claim 1, wherein a heat absorption layer is formed on the inner surface of the cover.
ブが取り付けられており、このグローブおよび口金を除
いたカバーが外方に露出する表面積に対する入力電力の
割合は700W/m2以上であることを特徴とする請求
項1ないし6いずれか一記載の電球形蛍光ランプ。7. A translucent globe covering the arc tube is attached to the cover, and the ratio of input power to the surface area of the cover excluding the globe and the cap is 700 W / m 2 or more. 7. The bulb-type fluorescent lamp according to claim 1, wherein the fluorescent lamp is a bulb.
の割合は300kW/m3以上であることを特徴とする
請求項1ないし7いずれか一記載の電球形蛍光ランプ。8. The bulb-type fluorescent lamp according to claim 1, wherein the ratio of the input power of the arc tube to the volume of the arc tube is 300 kW / m 3 or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001396789A JP4126527B2 (en) | 2001-08-31 | 2001-12-27 | Light bulb shaped fluorescent lamp |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-264860 | 2001-08-31 | ||
JP2001264860 | 2001-08-31 | ||
JP2001396789A JP4126527B2 (en) | 2001-08-31 | 2001-12-27 | Light bulb shaped fluorescent lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2003151307A true JP2003151307A (en) | 2003-05-23 |
JP4126527B2 JP4126527B2 (en) | 2008-07-30 |
Family
ID=26621489
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001396789A Expired - Fee Related JP4126527B2 (en) | 2001-08-31 | 2001-12-27 | Light bulb shaped fluorescent lamp |
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JP (1) | JP4126527B2 (en) |
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JP2006222079A (en) * | 2005-01-14 | 2006-08-24 | Toshiba Lighting & Technology Corp | Fluorescent lamp device and illumination implement |
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