JP2004134330A - Fluorescent lamp illumination fixture - Google Patents

Fluorescent lamp illumination fixture Download PDF

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Publication number
JP2004134330A
JP2004134330A JP2002334351A JP2002334351A JP2004134330A JP 2004134330 A JP2004134330 A JP 2004134330A JP 2002334351 A JP2002334351 A JP 2002334351A JP 2002334351 A JP2002334351 A JP 2002334351A JP 2004134330 A JP2004134330 A JP 2004134330A
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JP
Japan
Prior art keywords
fluorescent lamp
lamp
lighting
fluorescent
tube wall
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.)
Pending
Application number
JP2002334351A
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Japanese (ja)
Inventor
Yasuyuki Hasegawa
長谷川 康之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Lighting Ltd
Original Assignee
Hitachi Lighting Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Lighting Ltd filed Critical Hitachi Lighting Ltd
Priority to JP2002334351A priority Critical patent/JP2004134330A/en
Publication of JP2004134330A publication Critical patent/JP2004134330A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluorescent lamp illumination fixture in which reduction of a lamp beam is prevented, and fixture efficiency is improved, and in which the efficiency is superior. <P>SOLUTION: In the illumination fixture using a straight tube form fluorescent lamp 5, a metallic heat radiating plate 6 fixed to the lighting fixture is installed nearly longitudinal center part of the straight tube form fluorescent lamp 5, and it is connected to a fluorescent lamp 5 tube wall. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は蛍光灯ランプを使用する照明器具に関する。
【0002】
【従来の技術】
従来の蛍光灯照明器具は一般的に、図6に示すような点灯装置を内蔵した器具本体と反射板と前記器具本体に固定されたランプソケットに装着された蛍光ランプで構成され、天井面に固定される。
一般的に蛍光ランプは図7に示すように、周囲温度20℃のときに最適な特性になるように設計されており・その温度より高くても低くてもランプ光束や消費電力の低下やランプ短寿命の原因となる。
また、蛍光ランプの管壁温度は管端のフィラメント部は高温で長手中央部は最冷点となり、この温度差が大きい程、ランプ効率が向上するという特性がある。このように蛍光ランプを使用した従来の照明器具は、照明器具の形状や構造及び点灯装置や蛍光ランプの位置関係により、点灯装置や蛍光ランプの温度上昇が異なり、このためランプ光東や消費電力が変化する。
図8に示すような蛍光ランプの両側面を外郭で覆われ、また蛍光ランプ間に点灯装置が位置しているような照明器具の構造では、蛍光ランプの周囲温度が高くなり、このためランプ電流が増加し、その結果ランプ光束と消費電力が低下する。
さらに、ランプ電流が増加すると点灯装置の温度も上昇するため、蛍光ランプへの影響も増幅される。
【0003】
【発明が解決しようとする課題】
前記照明器具は、照明器具の形状や構造及びランプと点灯装置の位置関係により、蛍光ランプの周囲温度や点灯装置の温度が上昇し、ランプ光束と消費電力が低下するため、規定の出力が出ないという問題があつた。
本発明の目的は、ランプ光束の低下を防止し、器具効率を向上させた効率の良い蛍光灯照明器具を提供することにある。
【0004】
【課題を解決するための手段】
上記目的を達成するため、直管形蛍光ランプのほぼ長手中央部(管壁温度の最冷点)付近に、反射板に固定された金属製の放熱板を前記蛍光ランプ管壁と当接するように設けた。これにより、蛍光ランプの最冷点付近の熱を放熱板及び放熱板が固定された反射板に伝導、拡散させることにより、蛍光ランプ管壁の最冷点温度を低下させ、蛍光ランプの効率を向上させることができるため、ランプ光束の低下を防止し器具効率を向上させた効率の良い蛍光灯照明器具が提供できる。また、請求項2については、コンパクト形蛍光ランプ口金と反対側のほぼ先端(管壁温度の最冷点)付近に、照明器具に固定された金属製の放熱板を設け、前記蛍光ランプ管壁と当接するように設けた。
また、請求項3については、環形蛍光ランプ口金部のほぼ対角(管壁温度の最冷点)付近に、照明器具に固定された金属製の放熱板を設け、前記蛍光ランプ管壁と当接するように設けた。
【0005】
【発明の実施の形態】
以下、本発明の実施形態を図面で説明する。図1〜図3は、直管形蛍光ランプを使用した蛍光灯照明器具の一実施例を示し、蛍光ランプ5の側面を覆うように形成された器具本体1に取付られたランプソケット3に前記蛍光ランプ5が装着される。前記器具本体1に固定された点灯装置4は、前記蛍光ランプ5の中間に位置し、器具本体1に係合固定された反射板2により覆われた構造となっている。このような構造の場合、前記蛍光ランプ5の周囲温度が高くなり、このためランプ電流が増加し、その結果ランプ光東と消費電力が低下し、規定の出力が出ないという問題が生ずる。
このため前記蛍光ランプ5の中央部付近に、金属製の放熱板6をランプ管壁外周と当接、保持するように設け、蛍光ランプ5の最冷点付近の熱を放熱板6及び放熱板が固定された器具本体1に伝導、拡散させることにより、蛍光ランプ5管壁の最冷点温度を低下させ、ランプ効率を向上させることができるため、ランプ光束の低下を防止し器具効率を向上させることができる。
本実施例では、放熱板6の先端を固定部より細くすることにより、放熱板6で遮断される光の損失を低減しており、また蛍光ランプ5外管を保持しているため、地震や振動による蛍光ランプ5の破損や脱落を防止した安全性も兼ね備えている。
図4は他の実施例であるコンパクト形蛍光ランプを使用した蛍光灯照明器具を示し、点灯装置4を内蔵する器具本体1と、それを覆う反射板2と器具本体1に固定されたランプソケット引こコンパクト形蛍光ランプ7を装着し構成されたものにおいて、コンパクト形蛍光ランプ7の口金部と反対側のランプ先端部の最冷点位置に金属製の放熱板6をランプ管壁外周と当接、保持するように設け、コンパクト形蛍光ランプ10の管壁温度を放熱板及び放熱板が固定された器具本体1へ伝導、拡散することにより最冷点温度を低下させ、ランプ効率を向上させたものである。
図5は他の実施例である環形蛍光ランプを使用した蛍光灯照明器具を示し、点灯装置4を内蔵する器具本体1と、それを覆う反射板2と環形蛍光ランプ9を保持するランプホルダー8とセード10で構成されたものにおいて、環形蛍光ランプ9の口金部と対向する最冷点位置に金属製の放熱板6をランプ管壁外周と当接、保持するように設け、環形蛍光ランプ9の最冷点付近の熱を放熱板6及び放熱板が固定された反射板2及び器具本体1に伝導、拡散させることにより最冷点温度を低下させ、ランプ効率を向上させたものである。
【0006】
【発明の効果】
本発明によれば、蛍光ランプ管壁の最冷点温度を低下させ蛍光ランプの効率を向上させることができるため、ランプ光束の低下を防止し、器具効率を向上させた効率の良い蛍光灯照明器具が提供できる。
また、蛍光ランプの保持機能を共用できるため、耐振性、安全性の向上やコスト低減を図ることができる。
【図面の簡単な説明】
【図1】本発明器具断面図である。
【図2】その斜視図である。
【図3】その別の斜視図である。
【図4】本発明の他の実施例を示す斜視図。
【図5】本発明の他の実施例を示す斜視図である。
【図6】従来器具の断面図である。
【図7】蛍光ランプの周囲温度の影響による特性図である。
【図8】従来器具の別の断面図である。
【符号の説明】
1…器具本体,2…反射板,3…ランプソケット,4…点灯装置,5…直管形蛍光ランプ、6…放熱板,7…コンパクト形蛍光ランプ,8…ランプホルダー,9…環形蛍光ランプ、10…セード
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lighting device using a fluorescent lamp.
[0002]
[Prior art]
A conventional fluorescent lamp luminaire generally includes a luminaire main body having a lighting device as shown in FIG. 6, a reflector, and a fluorescent lamp mounted on a lamp socket fixed to the luminaire main body. Fixed.
Generally, as shown in FIG. 7, a fluorescent lamp is designed to have optimal characteristics at an ambient temperature of 20 ° C. It causes a short life.
In addition, the tube wall temperature of the fluorescent lamp is such that the filament portion at the tube end is at a high temperature and the longitudinal central portion is at the coldest point. As described above, conventional lighting fixtures using fluorescent lamps have different temperature rises in the lighting fixtures and fluorescent lamps depending on the shape and structure of the lighting fixtures and the positional relationship between the lighting fixtures and the fluorescent lamps. Changes.
In a structure of a lighting fixture in which both sides of a fluorescent lamp are covered with an outer shell as shown in FIG. 8 and a lighting device is located between the fluorescent lamps, the ambient temperature of the fluorescent lamp becomes high, so that the lamp current increases. Increases, which results in lower lamp luminous flux and lower power consumption.
Furthermore, since the temperature of the lighting device increases as the lamp current increases, the influence on the fluorescent lamp is amplified.
[0003]
[Problems to be solved by the invention]
Depending on the shape and structure of the lighting equipment and the positional relationship between the lamp and the lighting equipment, the ambient temperature of the fluorescent lamp and the temperature of the lighting equipment increase, and the lamp luminous flux and power consumption decrease. There was a problem that there was not.
SUMMARY OF THE INVENTION An object of the present invention is to provide an efficient fluorescent lamp luminaire in which the luminous flux of a lamp is prevented from being reduced and the luminous efficiency is improved.
[0004]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, a metal heat sink fixed to a reflector is brought into contact with the fluorescent lamp tube wall in the vicinity of a substantially longitudinal center portion (the coldest point of the tube wall temperature) of the straight tube fluorescent lamp. Provided. As a result, the heat near the coldest point of the fluorescent lamp is conducted and diffused to the heat sink and the reflector to which the heat sink is fixed, thereby lowering the coldest point temperature of the fluorescent lamp tube wall and increasing the efficiency of the fluorescent lamp. Therefore, it is possible to provide an efficient fluorescent lamp lighting apparatus in which a reduction in lamp luminous flux is prevented and the apparatus efficiency is improved. According to a second aspect of the present invention, a metal radiator plate fixed to a lighting fixture is provided substantially at the end (the coldest point of the tube wall temperature) on the side opposite to the compact fluorescent lamp base. Provided so as to abut.
According to the third aspect of the invention, a metal radiator plate fixed to a lighting fixture is provided near substantially a diagonal of the annular fluorescent lamp base (the coldest point of the tube wall temperature), and is provided in contact with the fluorescent lamp tube wall. Provided to be in contact.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 3 show an embodiment of a fluorescent lamp luminaire using a straight tube fluorescent lamp. The lamp socket 3 attached to a luminaire main body 1 formed so as to cover a side surface of a fluorescent lamp 5 is provided. The fluorescent lamp 5 is mounted. The lighting device 4 fixed to the fixture main body 1 is located in the middle of the fluorescent lamp 5 and has a structure covered with a reflector 2 engaged and fixed to the fixture main body 1. In the case of such a structure, the ambient temperature of the fluorescent lamp 5 becomes high, so that the lamp current increases. As a result, the power consumption of the lamp decreases, and there arises a problem that the specified output is not obtained.
For this reason, a metal heat radiating plate 6 is provided near the center of the fluorescent lamp 5 so as to contact and hold the outer periphery of the lamp tube wall, and the heat near the coldest point of the fluorescent lamp 5 is transferred to the heat radiating plate 6 and the heat radiating plate. Is transmitted and diffused to the fixture main body 1 to which the fluorescent lamp 5 is fixed, thereby lowering the coldest point temperature of the fluorescent lamp 5 tube wall and improving the lamp efficiency. Can be done.
In the present embodiment, the loss of the light blocked by the heat sink 6 is reduced by making the tip of the heat sink 6 thinner than the fixed part, and since the outer tube of the fluorescent lamp 5 is held, an earthquake or It also has safety in preventing the fluorescent lamp 5 from being damaged or dropped due to vibration.
FIG. 4 shows a fluorescent lamp lighting apparatus using a compact fluorescent lamp according to another embodiment. An apparatus main body 1 having a lighting device 4 built therein, a reflecting plate 2 covering the same, and a lamp socket fixed to the apparatus main body 1. In the case where the compact fluorescent lamp 7 is mounted, the metal heat radiating plate 6 is placed in contact with the outer periphery of the lamp tube wall at the coldest point at the tip of the lamp opposite to the base of the compact fluorescent lamp 7. It is provided so as to be in contact with and hold, and conducts and diffuses the tube wall temperature of the compact fluorescent lamp 10 to the radiator plate and the fixture body 1 to which the radiator plate is fixed, thereby lowering the coldest point temperature and improving the lamp efficiency. It is a thing.
FIG. 5 shows a fluorescent lamp lighting apparatus using a ring-shaped fluorescent lamp according to another embodiment. A lamp body 8 having a lighting device 4 built-in, a reflector 2 covering the lighting device 4 and a ring-shaped fluorescent lamp 9 is shown. And a shade 10, a metal radiator plate 6 is provided at the coldest point facing the base of the annular fluorescent lamp 9 so as to contact and hold the outer periphery of the lamp tube wall. The heat in the vicinity of the coldest point is transmitted and diffused to the heat radiating plate 6 and the reflecting plate 2 to which the heat radiating plate is fixed, and to the fixture main body 1, thereby lowering the coldest point temperature and improving the lamp efficiency.
[0006]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, since the coldest point temperature of a fluorescent lamp tube wall can be reduced and the efficiency of a fluorescent lamp can be improved, the fall of lamp luminous flux was prevented and the efficient fluorescent lamp illumination which improved fixture efficiency was improved. Equipment can be provided.
In addition, since the holding function of the fluorescent lamp can be shared, it is possible to improve vibration resistance and safety and reduce costs.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of the device of the present invention.
FIG. 2 is a perspective view thereof.
FIG. 3 is another perspective view thereof.
FIG. 4 is a perspective view showing another embodiment of the present invention.
FIG. 5 is a perspective view showing another embodiment of the present invention.
FIG. 6 is a sectional view of a conventional device.
FIG. 7 is a characteristic diagram due to the influence of the ambient temperature of the fluorescent lamp.
FIG. 8 is another cross-sectional view of a conventional device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Instrument main body, 2 ... Reflector, 3 ... Lamp socket, 4 ... Lighting device, 5 ... Straight fluorescent lamp, 6 ... Heat sink, 7 ... Compact fluorescent lamp, 8 ... Lamp holder, 9 ... Ring fluorescent lamp , 10 ... Sade

Claims (3)

直管形蛍光ランプを使用する照明器具において、直管形蛍光ランプのほぼ長手中央部付近に、照明器具に固定された金属製の放熱板を設け、前記蛍光ランプ管壁と当接させたことを特徴とする蛍光灯照明器具。In a lighting fixture using a straight tube fluorescent lamp, a metal heat sink fixed to the lighting fixture is provided substantially near the center of the longitudinal direction of the straight tube fluorescent lamp, and is brought into contact with the fluorescent lamp tube wall. A fluorescent lighting device characterized by the above-mentioned. コンパクト形蛍光ランプを使用する照明器具において、コンパクト形蛍光ランプの口金と反対側のほぼ先端付近に、照明器具に固定された金属製の放熱板を設け、前記蛍光ランプ管壁と当接させたことを特徴とする蛍光灯照明器具。In a lighting fixture using a compact fluorescent lamp, a metal radiator plate fixed to the lighting fixture was provided near the tip of the compact fluorescent lamp on the side opposite to the base, and was brought into contact with the fluorescent lamp tube wall. A fluorescent lighting device characterized by the above-mentioned. 環形蛍光ランプを使用する照明器具において、環形蛍光ランプの口金部のほぼ対角付近に、照明器具に固定された金属製の放熱板を設け、前記蛍光ランプ管壁と当接させたことを特徴とする蛍光灯照明器具。In a lighting fixture using a ring-shaped fluorescent lamp, a metal heat sink fixed to the lighting fixture is provided near substantially a diagonal of a base of the ring-shaped fluorescent lamp, and is brought into contact with the fluorescent lamp tube wall. Fluorescent lighting equipment.
JP2002334351A 2002-10-11 2002-10-11 Fluorescent lamp illumination fixture Pending JP2004134330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002334351A JP2004134330A (en) 2002-10-11 2002-10-11 Fluorescent lamp illumination fixture

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Application Number Priority Date Filing Date Title
JP2002334351A JP2004134330A (en) 2002-10-11 2002-10-11 Fluorescent lamp illumination fixture

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008098115A (en) * 2006-10-16 2008-04-24 Matsushita Electric Works Ltd Lighting fixture
WO2009031346A1 (en) * 2007-09-07 2009-03-12 Sharp Kabushiki Kaisha Clip, illuminating device and liquid crystal display device
JP2012146563A (en) * 2011-01-13 2012-08-02 Panasonic Corp Lighting fixture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008098115A (en) * 2006-10-16 2008-04-24 Matsushita Electric Works Ltd Lighting fixture
WO2009031346A1 (en) * 2007-09-07 2009-03-12 Sharp Kabushiki Kaisha Clip, illuminating device and liquid crystal display device
JP2012146563A (en) * 2011-01-13 2012-08-02 Panasonic Corp Lighting fixture

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