JP3100808U - Light source for white LED lighting - Google Patents

Light source for white LED lighting Download PDF

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JP3100808U
JP3100808U JP2003270236U JP2003270236U JP3100808U JP 3100808 U JP3100808 U JP 3100808U JP 2003270236 U JP2003270236 U JP 2003270236U JP 2003270236 U JP2003270236 U JP 2003270236U JP 3100808 U JP3100808 U JP 3100808U
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light source
white led
led
lamp
white
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俊二 岸村
晴美 岸村
泰久 松野
哲 阿部
利文 高橋
敏幸 綱島
正勝 大澤
昇 堀田
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俊二 岸村
岩崎 照皇
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/08Lighting devices intended for fixed installation with a standard
    • F21S8/085Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10Outdoor lighting
    • F21W2131/103Outdoor lighting of streets or roads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

【課題】 LEDの個数が少なくても十分な照度を保証でき、省エネルギー化並びにメンテナンスフリー化を図り得る白色LED照明用光源の提供。
【解決手段】 照明装置用灯具本体1の照光面に対応する形状の板面に所要の複数個の保持孔が所定長ピッチの行列的な配置で備えられてなる反射板9に対し、複数個の白色LED11を各保持孔に介挿し保持させて各電極部12に関連するLEDチップの直近後方部において固定する一方、反射板9の直後方に並設したLED用基板10に各白色LED11の正負の端子を装着するとともに正負の端子毎に印加電圧に適合した直並列電気回路網を形成する。
【選択図】 図7
PROBLEM TO BE SOLVED: To provide a light source for white LED illumination which can guarantee sufficient illuminance even if the number of LEDs is small, can save energy and can be maintenance-free.
SOLUTION: A plurality of required holding holes are provided in a plate surface having a shape corresponding to an illuminating surface of a lighting device lamp main body 1 in a matrix arrangement with a predetermined length pitch. The white LED 11 is inserted and held in each holding hole and fixed at a portion immediately behind the LED chip associated with each electrode portion 12, while the white LED 11 is mounted on the LED substrate 10 arranged immediately after the reflection plate 9. A positive / negative terminal is mounted, and a series-parallel electric network is formed for each of the positive / negative terminals.
[Selection diagram] FIG.

Description

本考案は、道路、公園など広場に設置する街路灯に用いて好適な白色LED照明装置における光源としての白色LED照明用光源に関する。   The present invention relates to a light source for white LED illumination as a light source in a white LED illumination device suitable for use as a street light installed in a plaza such as a road or a park.

従来、道路や公園における照明には白熱電球、水銀灯、蛍光灯が専ら用いられているが、それらは比較的に電力を消費することから省エネルギーを図るためとして、蛍光灯よりも遥かに小さな電力ですむとされるLED(発光ダイオード;Light Emitting Diode)の利用が検討されて来ている。しかし、LEDは点光源形で指向性が強くて閃光のように眩しく感じるなど種々の特性面から野外等での照明には適さないとされ普及には至っていないのが実状であるが、建物内外で用いられるLED照明器具に関するものとしての典型的な先行技術がある(例えば、特許文献1参照)。   Conventionally, incandescent bulbs, mercury lamps, and fluorescent lamps are used exclusively for lighting in roads and parks, but they consume relatively much power, so they use much less power than fluorescent lamps to save energy. Use of LEDs (Light Emitting Diodes) has been studied. However, LEDs are not suitable for outdoor lighting because of their various characteristics such as point light source type and strong directivity, and they feel dazzling like flashes. There is a typical prior art related to an LED lighting fixture used in the Japanese Patent Application Laid-Open (JP-A) No. 2002-131131.

これに対して、省エネルギーが図られるとともに街路灯などの照明器具により適したLED照明器具を提供するべく、本考案者等は、先にLEDを光源に用いて成る新規な照明器具を提案した(例えば、特許文献2参照)。 On the other hand, in order to provide an LED lighting device that is energy-saving and is more suitable for a lighting device such as a street light, the present inventors have previously proposed a new lighting device using an LED as a light source ( For example, see Patent Document 2).

特許文献1の照明器具は、複数のLEDを有しこのLEDの直下に中空の導光板を設け、導光板の中心軸に沿ってこの導光板を支持する支柱を設け、導光板の導光部の内側表面に拡散反射特性と拡散透過特性を有する拡散層を形成すると共に支柱の表面に拡散反射層を形成し、導光部の上側端面に沿ってLEDを配設した構造である。   The lighting fixture of Patent Document 1 has a plurality of LEDs, a hollow light guide plate is provided immediately below the LEDs, a support for supporting the light guide plate is provided along a central axis of the light guide plate, and a light guide portion of the light guide plate is provided. A diffused layer having a diffuse reflection characteristic and a diffuse transmission characteristic is formed on the inner surface of the support, and a diffuse reflection layer is formed on the surface of the support, and the LEDs are arranged along the upper end face of the light guide.

このような照明器具は、点光源のLEDから面光源を得るのに、「複数のLEDに対して、内側表面に拡散反射特性と拡散透過特性を有する拡散層を形成した導光部を持つ導光板とこの導光板に並設した拡散反射層とを備える」との特殊な構造が必要であり、構造の複雑化を齎すだけでなく、透明体の導光板内での減光があることから、十分な照度を得るのにLEDを数多く要する不経済があり、更に、屋外で使用するにはこれらの部材を覆うためのグローブが不可欠で照度保持、器具コストの面で種々問題が多い。 In order to obtain a surface light source from an LED as a point light source, such a lighting apparatus has a light guide having a light guide portion in which a diffusion layer having a diffuse reflection characteristic and a diffuse transmission characteristic is formed on an inner surface. A light plate and a diffuse reflection layer arranged side by side with this light guide plate "are required, which not only complicates the structure but also reduces light in the transparent light guide plate. However, there is a disadvantage in that many LEDs are required to obtain sufficient illuminance, and gloves for covering these members are indispensable for outdoor use, and there are many problems in terms of illuminance maintenance and equipment cost.

他方、特許文献2の照明器具(以下、先提案照明器具と称する)は、汎用のソケットに着脱可能な口金に同軸の一体を成して取付けた五重層構造で砲弾形中空容器状のLED用保持ユニットに対して、複数個のLEDを分散させて挿脱可能に装着し、かつこの挿脱操作に応じて前記口金との電気的接続・離断可能に構成し、更に、その外側に砲弾形の透明カバーを着脱可能に取付けた全体として砲弾形電球の照明灯に形成したものである。 On the other hand, the lighting fixture of Patent Document 2 (hereinafter referred to as a previously proposed lighting fixture) is a five-layer structure for a bullet-shaped hollow container-shaped LED that is coaxially and integrally mounted on a base that can be attached to and detached from a general-purpose socket. A plurality of LEDs are dispersedly mounted on and detachable from the holding unit, and are configured to be electrically connected to and disconnected from the base according to the insertion / removal operation. It is formed as a bullet-shaped light bulb as a whole, with a transparent cover of the shape removably attached.

このような構成の先提案照明器具は、省エネルギーに適した灯具としての所期の目的は十分達成し得るものであるが、点光源形のLEDがLED用保持ユニットの外周に分散配置された構造の点から、一つ一つの輝度が可なり大きくて歩行者の眼に強い刺激を与える恐れが考えられること、通常LEDは光の指向性が強い(狭角)特性があるため、全体的に発光が広がり難くて1個の照明器具当たりの照射範囲(領域)が狭くなって単位領域についての照明器具基数が増えることなど、解決を要する問題が依然として残っている。
特開平11−213730号公報(第2−3頁[0009]〜[0014]、図1、図2、図3) 特願2002−007762号(第5−7頁[0008]〜[0012]、第1図、第2図)
The proposed lighting device having such a configuration can sufficiently achieve the intended purpose as a lighting device suitable for energy saving, but has a structure in which point light source type LEDs are dispersedly arranged on the outer periphery of the LED holding unit. From the point of view, it can be considered that each of the brightnesses is considerably large and may give a strong stimulus to the eyes of pedestrians. Generally, LEDs have strong directivity of light (narrow angle). Problems that need to be solved still remain, such as difficulty in spreading light emission, narrowing the irradiation range (area) per lighting fixture and increasing the number of lighting fixtures per unit area.
JP-A-11-213730 (pages 2-3 [0009] to [0014], FIGS. 1, 2, and 3) Japanese Patent Application No. 2002-007762 (Pages 5 to 7 [0008] to [0012], FIGS. 1 and 2)

本考案は、上記の事実に鑑みて成されたものであって、従って、本考案の目的は、灯具の形態・デザインを発光の分散が助長されるようなものにした場合において、LEDの個数を増やさずに十分な照度を保証することが可能で、総合的に省エネルギー化並びにメンテナンスフリー化を図ることが出来る白色LED照明装置に用いて最適な白色LED照明用光源を提供しようとするものである。   The present invention has been made in view of the above facts. Therefore, the purpose of the present invention is to make the form and design of the lamp so that the dispersion of light emission is promoted, and the number of LEDs The aim is to provide an optimal light source for white LED lighting that can be used for a white LED lighting device that can guarantee sufficient illuminance without increasing the amount of light, and can achieve energy saving and maintenance free comprehensively. is there.

本考案は上述の目的を達成するためとして、先ず請求項1の考案に関しては、照明装置における灯具本体1の照光面に対応する形状の板面に所要の複数個の保持孔が所定長ピッチの行列的な配置で備えられてなる反射板9に対して、複数個の白色LED11を前記各保持孔に介挿し保持させて各電極部12に関連するLEDチップの直近後方部において固定する一方、反射板9の直後方に並設したLED用基板10に各白色LED11の正負の端子を装着するとともに正負の端子毎に印加電圧に適合した直並列電気回路網を形成することにより白色LED照明用光源を構成してなるものである。   In order to achieve the above object, the present invention firstly relates to the invention of claim 1, wherein a plurality of required holding holes having a predetermined length pitch are formed on a plate surface having a shape corresponding to an illuminating surface of the lamp body 1 in the lighting device. While a plurality of white LEDs 11 are inserted and held in the respective holding holes and fixed at the immediately rearward portion of the LED chip associated with each electrode portion 12 with respect to the reflecting plate 9 provided in a matrix arrangement, By mounting the positive and negative terminals of each white LED 11 on the LED substrate 10 juxtaposed directly behind the reflector 9 and forming a series-parallel electric network suitable for the applied voltage for each positive and negative terminal, for white LED lighting It constitutes a light source.

このような本考案によれば、所定長ピッチの行列的な配置で備えられる複数個の白色LED11に対して各電極部12に関連するLEDチップの直近後方部に共通の反射板9を設けたことにより、白色LED11の見かけ上の数量増大と有効な光反射とが相俟って前方への光照射がロス無く効率的に行われることから、白色LED11の数を最小としながら照度を十分維持させることができる。従って、街路灯などの白色LED照明装置に実施して好ましい白色LED照明用光源である。   According to the present invention, for a plurality of white LEDs 11 provided in a matrix arrangement of a predetermined length pitch, a common reflector 9 is provided in the immediate rear part of the LED chip associated with each electrode part 12. Thus, the apparent increase in the number of the white LEDs 11 and the effective light reflection enable efficient forward light irradiation without any loss, so that the illuminance is sufficiently maintained while the number of the white LEDs 11 is minimized. Can be done. Therefore, it is a preferable white LED illumination light source to be implemented in a white LED illumination device such as a street light.

また本考案は上記目的達成のために、請求項2の考案に関しては、請求項1記載の白色LED照明用光源において、複数個の白色LED11を反射板9に対して各電極部12に関連するLEDチップの2〜4mm後方部において固定してなる構成としたことを特徴とする。 In order to achieve the above object, the present invention relates to the light source for white LED illumination according to the first aspect of the present invention, wherein a plurality of white LEDs 11 are associated with each electrode portion 12 with respect to the reflection plate 9. The LED chip is fixed at a position 2 to 4 mm behind the LED chip.

このような本考案によれば、2〜4mmの間隔を存する後方部に反射板9の前表面が位置するように適正な範囲内で寸法決めして固定することにより、電極部12に関連するLEDチップでの発光を減衰が最も少なくかつ効率良く前方に向け反射させることが可能となる。 According to the present invention, the size of the reflector 9 is determined and fixed within an appropriate range so that the front surface of the reflector 9 is located at the rear portion having an interval of 2 to 4 mm. The light emitted from the LED chip can be efficiently reflected forward with minimal attenuation.

本考案は叙述のように、白色LED照明用光源としては反射板による白色LEDの見かけ上の数量増大と有効な光反射とが相俟って前方への光照射がロス無く効率的に行われることから、白色LEDの数を最小としながら照度を十分維持させることができ、街路灯などの白色LED照明装置に実施して好ましいものである。   As described above, according to the present invention, as the light source for white LED illumination, the increase in the apparent number of white LEDs by the reflector and the effective light reflection enable efficient forward light irradiation without loss. Therefore, it is possible to sufficiently maintain the illuminance while minimizing the number of white LEDs, and this is preferable for a white LED lighting device such as a street light.

更に本考案は、白色LEDを照明装置の光源に用いているので、長寿命、低電力負荷の下で十分な照度を保証できて、総合的に低ランニングコストを維持し得るとともに、省エネルギー化並びにメンテナンスフリー化を図ることが出来る。   Further, since the present invention uses a white LED as the light source of the lighting device, it can guarantee a sufficient illuminance under a long service life and a low power load, can maintain a low running cost comprehensively, and can save energy and save energy. Maintenance free can be achieved.

以下、本考案の実施の形態を図面に基づき説明する。図1は本考案の一つの実施の形態に係る白色LED照明装置の全体姿図で、(イ)は正面図、(ロ)は右側面図である。図示の白色LED照明装置は、灯具本体1と、灯具用支柱2と、電源装置4と、太陽電池5とから構成される。
灯具用支柱2は、例えば、下端支承部15、ポール部21からなるステンレス鋼製の直立形1本柱であって、図示する上端部寄りの中間部又は上端部に支持腕1を突設させて有する。この灯具用支柱2は、例えば街路灯支柱として用いられて、道路の歩行者道における車道側路肩の近部に支持腕14を歩行者道側に突き出させた姿勢にて立設される。
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall view of a white LED lighting device according to an embodiment of the present invention, wherein (a) is a front view and (b) is a right side view. The illustrated white LED lighting device includes a lamp body 1, a lamp column 2, a power supply device 4, and a solar cell 5.
The lamp support 2 is, for example, an upright single pillar made of stainless steel including a lower end support portion 15 and a pole portion 21, and the support arm 1 is protruded from an intermediate portion or an upper end near the upper end shown in the drawing. Have The lamp support 2 is used, for example, as a street light support, and is erected in a posture in which a support arm 14 protrudes toward a pedestrian road near a roadside shoulder on a pedestrian road.

電源装置4は、灯具本体1における後述の白色LED照明用光源3(以下、光源3と略称する)に給電するためとして設けられるものであって、長寿命型制御弁式鉛蓄電池などの蓄電池が使用され、支柱2の下部である下端支承部15の内部の所定空所に収設される。なお、電源装置4としては、上記蓄電池に加えてインバーター(交流―直流変換機)を非常用として必要に応じ付設して、低圧配電線から電力供給を受けるようにすることも可能である。   The power supply device 4 is provided to supply power to a later-described white LED illumination light source 3 (hereinafter abbreviated as the light source 3) in the lamp body 1, and includes a storage battery such as a long-life control valve-type lead storage battery. It is used and housed in a predetermined space inside the lower end bearing 15 which is the lower part of the column 2. In addition, as the power supply device 4, in addition to the storage battery, an inverter (AC-DC converter) may be provided as needed for emergency use so that power is supplied from the low-voltage distribution line.

太陽電池5は、灯具用支柱2の頂部に取付けて太陽光を最大に受け易い方向及び傾斜角度で固定されるが、設置条件により3種類(多結晶・単結晶・単結晶+アモルファス)の結晶系太陽電池の中から適宜のものが選定される。この太陽電池5から得た電力を図示しないが後述する光源用コントローラ6を経由して前記蓄電池4に蓄電させるように回路構成している。なお、太陽電池5は必ずしも必要でなく、灯具本体1のみを灯具用支柱2に取付けて電灯・電力配電線からの電力供給を受けるようにした照明装置もまた本考案の範囲に含まれるものである。   The solar cell 5 is attached to the top of the lamp column 2 and is fixed in a direction and an inclination angle at which sunlight is most easily received. Depending on installation conditions, three types of crystals (polycrystal, single crystal, single crystal + amorphous) are used. An appropriate one is selected from the system solar cells. Although not shown, the electric power obtained from the solar cell 5 is configured to be stored in the storage battery 4 via a light source controller 6 described later. Note that the solar cell 5 is not necessarily required, and a lighting device in which only the lamp body 1 is attached to the lamp column 2 so as to receive power supply from an electric lamp / power distribution line is also included in the scope of the present invention. is there.

灯具本体1は、灯具筐体7とこの灯具筐体7の底部開口に合着される無色透明のグローブ8とにより、左右の幅方向に比して前後の奥行方向が長い「擬似T太字」の形状を成す外筐体が形成されていて、灯具筐体7はステンレス鋼製になるもの、グローブ8はアクリル樹脂製になるものが用いられる。この灯具本体1は灯具筐体7の後端部に一体で突設させた取付け基部13を支持腕14に嵌合・固定させて灯具用支柱2に支持され、例えば歩道の真上約3.5mの位置において照光面を下向きにしかつ長手側軸をやや上向きに前方に延ばした姿勢で定置される。   The lamp main body 1 has a “pseudo T bold” in which the front and rear depth directions are longer than the left and right width directions by a lamp housing 7 and a colorless and transparent glove 8 attached to a bottom opening of the lamp housing 7. Are formed, the lamp housing 7 is made of stainless steel, and the globe 8 is made of acrylic resin. The lamp body 1 is supported by the lamp column 2 by fitting and fixing a mounting base 13 integrally projecting from a rear end of the lamp housing 7 to a support arm 14. At a position of 5 m, it is set in a posture in which the illuminating surface is directed downward and the longitudinal axis is extended slightly upward and forward.

図2、図3、図4には、図1における灯具本体1の側面図、底面図、正面図がそれぞれ示される。図5には上記灯具本体1の斜め下方からの分離示斜視図が図示され、図6には同じく灯具本体1の後側方からの斜視図が図示される。また、図7には上記灯具本体1の後部における幅方向の概略示縦断面図が図示され、図8には図7における光源3の部分拡大図が図示される。   2, 3, and 4 show a side view, a bottom view, and a front view of the lamp body 1 in FIG. 1, respectively. FIG. 5 is a perspective view showing the lamp body 1 separated from an obliquely lower side, and FIG. 6 is a perspective view of the lamp body 1 also viewed from the rear side. 7 is a schematic longitudinal sectional view of the rear part of the lamp body 1 in the width direction, and FIG. 8 is a partially enlarged view of the light source 3 in FIG.

本考案の一つの実施の形態に係る白色LED照明装置における灯具本体1の構成について以下に説明する。
灯具本体1は、灯具筐体7とグローブ8と光源3と光源用コントローラ6とを備える。灯具本体1における外筐体を形成する灯具筐体7とグローブ8は、筐体内に収設される光源3に対向する個所の横断面形状が、取付け基部13寄りの各後部7A,8Aにおいては、前後方向の長手側に平行な側辺を短辺とする長方形であり、これに一体で連なる前部7B,8Bにおいては、後部7A,8Aに比し幅狭くて先細りの細長台形であり、組付け時には灯具筐体7を上、グローブ8を下にして開口部相互を合わせ付けるとともに、グローブ8の周縁部に嵌め付けたステンレス鋼製になるグローブ縁枠22を灯具筐体7の周縁部に内嵌合しビス締め付けなどの固着手段によって、防水形一体構造の外筐体が形成される。
The configuration of the lamp body 1 in the white LED lighting device according to one embodiment of the present invention will be described below.
The lamp main body 1 includes a lamp housing 7, a globe 8, a light source 3, and a light source controller 6. The lamp housing 7 and the globe 8, which form the outer housing of the lamp body 1, have a cross section at a position facing the light source 3 housed in the housing. A rectangular shape having a short side parallel to the longitudinal side in the front-rear direction, and a front portion 7B, 8B integrally connected to the front portion 7B, 8A, which has a narrow and tapered narrow trapezoidal shape as compared with the rear portions 7A, 8A; At the time of assembling, the openings are aligned with the lamp housing 7 up and the globe 8 down, and the stainless steel glove frame 22 fitted to the peripheral edge of the globe 8 is attached to the peripheral edge of the lamp housing 7. The outer casing having a waterproof integrated structure is formed by a fixing means such as screw fastening or the like.

グローブ8は図5及び図7を参照すれば明らかなように、照光面部が内面は平滑面17で、外面は山条と谷条を数mm、例えば5mmのピッチで交互に繰り返し隣り合わせてなる縦縞の凹凸条面18であって、全体形状として長手側の中心線を底にして左右の幅方向に対称を成す湾曲板面に形成される。   5 and 7, the globe 8 has an illuminated surface portion having an inner surface which is a smooth surface 17 and an outer surface having vertical stripes in which mountain lines and valleys are alternately and repeatedly arranged at a pitch of several mm, for example, 5 mm. Is formed on a curved plate surface which is symmetrical in the left and right width directions with the center line on the longitudinal side as the bottom as a whole shape.

一方、光源3は、反射板9と、LED用基板10(以下、基板10と略称する)と、所要の複数個の白色LED11とを要素部材として、前記外筐体の内部空間の横断面形状に対応した形状の板体面状光源に構成される。図5及び図7を参照して、反射板9はアルミニウム等の金属板で前反射面が鏡面仕上げされてなる所定形状の板体が用いられ、使用する白色LED11の所定数に等しい数の保持孔が所定ピッチの行列的な配置で穿孔された孔明き板を形成している。一例として、白色LED11の外径に7mm程度のギャップを加えた寸法のピッチを基準に、千鳥足跡状、碁盤升目状等の行列配置で保持孔を並べて穿孔した孔明き鏡板が挙げられる。   On the other hand, the light source 3 includes a reflector 9, an LED substrate 10 (hereinafter, simply referred to as a substrate 10), and a plurality of required white LEDs 11 as element members, and a cross-sectional shape of an internal space of the outer housing. Is configured as a plate-shaped planar light source having a shape corresponding to. Referring to FIG. 5 and FIG. 7, the reflection plate 9 is a metal plate of aluminum or the like, and is a plate of a predetermined shape having a mirror-finished front reflection surface. The holes form a perforated plate with a predetermined pitch in a matrix arrangement. As an example, there is a perforated mirror plate in which holding holes are arranged and perforated in a matrix arrangement such as a staggered footprint or a grid pattern on the basis of a pitch of a size obtained by adding a gap of about 7 mm to the outer diameter of the white LED 11.

次に、白色LED11は、砲弾形を成す所定数の各LEDを前記各保持孔に介挿し保持させて反射板9にそれぞれ固定するが、この場合、図8に示されるように電極部12に関連して設けられるLEDチップ(図示せず)に対して直近後方部に、好ましくは、2〜4mmの間隔 を有する後方部に、反射板9の前表面が位置するように寸法決めして固定する。このようにするのは、電極部12での発光を減衰が最も少なく効率良く前方に向け反射させるためとしては、反射板9の上記寸法になる当該位置が最適条件であるに他ならないからであり、この場合の最適条件に関しての実測に基づく検討結果は、後述する説明により明らかにされる。 Next, the white LED 11 is fixed to the reflection plate 9 by inserting and holding a predetermined number of each LED forming a shell shape in each of the holding holes. In this case, as shown in FIG. proximate the rear portion relative to the associated LED is provided a chip (not shown), preferably, the rear portion having a distance d 0 of 2-4 mm, the front surface of the reflection plate 9 Shi sized to position And fix it. The reason for this is that, in order to efficiently reflect light emitted from the electrode section 12 forward with the least attenuation, the position of the reflector 9 having the above dimensions is the optimum condition. Ri, study results based on actual measurement with respect to the optimum condition of this case, Ru revealed by the description below.

基板10は周知の配線用の基板であって、白色LED11における細導電線からなる正端子23、負端子24に対応した所定の配列でかつ所定数の極細孔が明けられていて、この基板10を反射板9の直後方に並設して前記極細孔を利用して各白色LED11の正端子23、負端子24それぞれを基板10に対して半田付25により装着させる。そして、正負の端子ごとに印加電圧に適合した直並列電気回路網を形成する。   The substrate 10 is a well-known wiring substrate, and has a predetermined arrangement corresponding to the positive terminal 23 and the negative terminal 24 made of fine conductive wires in the white LED 11 and has a predetermined number of pole holes formed therein. The positive terminal 23 and the negative terminal 24 of each white LED 11 are mounted on the substrate 10 by soldering 25 by utilizing the above-mentioned poles. Then, a series-parallel electric network suitable for the applied voltage is formed for each of the positive and negative terminals.

上述の構成になる光源3において、図5を参照して長方形状をなしている前記後部7Aに収設される部分は、当該部分が幅広の個所であるところから、反射板9及び基板10をグローブ8における後部8Aの長方形湾曲板面に対応させた形状である広口半角樋状の折曲板に形成し、一方、細長台形状をなす前記前部7Bに収設される部分は、反射板9及び基板10をグローブ8における前部8Bの細長台形湾曲板面に対応させた形状である細長台形の平板に形成してなり、このように構成された光源3全体をグローブ8に対して約20mmの間隔d1(図7参照)が保持されるように位置決めして灯具筐体7内に収設する。   In the light source 3 having the above-described configuration, the portion housed in the rear portion 7A having a rectangular shape with reference to FIG. The globe 8 is formed as a wide-open, half-square gutter-shaped bent plate having a shape corresponding to the rectangular curved plate surface of the rear portion 8A, while a portion accommodated in the elongated trapezoidal front portion 7B is a reflecting plate. 9 and the substrate 10 are formed in an elongated trapezoidal flat plate having a shape corresponding to the elongated trapezoidal curved plate surface of the front portion 8B of the globe 8. It is positioned and stored in the lamp housing 7 so that a distance d1 (see FIG. 7) of 20 mm is maintained.

一方、光源用コントローラ6については、該コントローラ6は光源3の点・消灯、電源装置4における蓄電池の充・放電、太陽電池5の接・断路などのコントロールを行わせる制御系であって、タイマー、日照センサなどの制御指令要素と、太陽電池5の出力電圧を感知する自動電圧感知手段及び該手段により太陽電池5から得た電力を蓄電池に蓄電させる自動蓄電手段と、さらに前記制御指令要素からの制御指令に基づき光源3を発光量の調節可能に点・消灯させる光源制御手段などを備えていて、それらを一体的に纏めてなる本体部を図7に略示するごとく、灯具筐体7内における光源3の背後空所に収納して、光源3、電源装置4及び太陽電池5に電気的に関連させている。   On the other hand, with respect to the light source controller 6, the controller 6 is a control system for controlling turning on / off of the light source 3, charging / discharging of the storage battery in the power supply device 4, connection / disconnection of the solar cell 5, and the like. A control command element such as a sunshine sensor, automatic voltage sensing means for sensing the output voltage of the solar cell 5, automatic power storage means for storing power obtained from the solar cell 5 by the means in the storage battery, and further comprising: A light source control means for turning on / off the light source 3 so that the light emission amount can be adjusted based on the control command of the light source 3 is provided. The light source 3 is housed in a space behind the light source 3 and electrically connected to the light source 3, the power supply device 4, and the solar cell 5.

以上、一実施形態に係る白色LED照明装置の主要部の構成について説明したが、図2、図5において符号16で示す部材は遮熱板であり、必要に応じて灯具本体1に付設するものである。この遮熱板16は、灯具本体1の平面外形状に相似する形状のアルミニウム等の金属製のプレス加工板であり、灯具筐体7の直上方に僅少な空隙を存して日除け板状に覆わせて設けられる。このように遮熱板16を設けることによって、灯具本体1への直射日光を遮らせて本体内の温度上昇を抑えることができる。 As described above, the configuration of the main part of the white LED lighting device according to the embodiment has been described. In FIGS. 2 and 5, a member indicated by reference numeral 16 is a heat shield plate, and is attached to the lamp body 1 as necessary. It is. The heat shield plate 16 is a pressed plate made of metal such as aluminum having a shape similar to the out-of-plane shape of the lamp body 1, and is formed into a sunshade plate with a small gap right above the lamp housing 7. It is provided so as to be covered. By providing the heat shield plate 16 in this manner, direct sunlight to the lamp body 1 can be blocked, and a rise in temperature inside the body can be suppressed.

一方、灯具用支柱2を中空パイプにより形成することも好ましい手段であり、この場合、支柱上端部よりのパイプ壁に図示しないが空気逃がし口を通常の手段によって開口させるものであって、支柱内の中空部が煙突効果を奏し得るところから、下方部に設けた外気温度による発生熱を空気逃がし口から排出できて温度上昇を防止し、蓄電池の性能安定化、長寿命化が果たされる。   On the other hand, it is also a preferable means to form the lamp support 2 by a hollow pipe. In this case, although not shown, an air release port is opened by ordinary means in a pipe wall from the upper end of the support, Since the hollow portion can exhibit the chimney effect, the heat generated by the outside air temperature provided in the lower portion can be exhausted from the air escape port to prevent the temperature from rising, thereby stabilizing the performance and extending the life of the storage battery.

また、図2、図3において符号19、20はそれぞれ吸気口、排気口であり、吸気口19は灯具筐体7の前記後部7Aにおける側板の後面部に開口され、一方、排気口20は前記後部7Aにおける側板の側面部に開口されていて、排気口20に対して低レベルに設けた吸気口19から吸入した外気を灯具筐体7内を経て排気口20から排出させて自然換気により内部温度上昇が抑えられる結果、温度条件にシビアな光源用コントローラ6及び白色LED11の性能を安定させることができる。   2 and 3, reference numerals 19 and 20 denote an intake port and an exhaust port, respectively. The intake port 19 is opened at the rear surface of a side plate of the rear portion 7A of the lamp housing 7, while the exhaust port 20 is Opened at the side of the side plate at the rear part 7A, the outside air sucked from the intake port 19 provided at a low level with respect to the exhaust port 20 is exhausted from the exhaust port 20 through the lamp housing 7 and is internally ventilated by natural ventilation. As a result of suppressing a rise in temperature, the performance of the light source controller 6 and the white LED 11 that is severe under temperature conditions can be stabilized.

以上述べた構成になる本考案装置の作用を次に説明する。灯具本体1は灯具用支柱2により支持させて、例えば歩道の真上3〜4mの位置において照光面を下向きにしかつ長手側軸をやや上向きに前方に延ばした姿勢、即ち、例えば図6において水平線に対する傾斜角度θ1=5度の上向きに前方に延ばした状態で定置する。なお、図6に示す照明装置は、灯具筐体7の前部7Bの光源3が前記長手側軸に対して上向きに5度傾斜するように設けられていて、従って前部7Bの光源3が水平線に対する傾斜角度θ2=5度の上向きに前方に延びた状態となっている。 Next, the operation of the device of the present invention having the above-described configuration will be described. The lamp body 1 is supported by a lamp column 2, for example, a position in which the illuminated surface is directed downward and the longitudinal axis is extended slightly upward at a position of 3 to 4m directly above the sidewalk, that is, for example, a horizontal line in FIG. Is set in a state of extending upward and forward at an inclination angle θ1 = 5 degrees with respect to. In the lighting device shown in FIG. 6, the light source 3 at the front portion 7B of the lamp housing 7 is provided so as to be inclined 5 degrees upward with respect to the longitudinal axis. It is in a state of extending upward and forward with an inclination angle θ2 = 5 degrees with respect to the horizontal line.

この設置状態で光源用コントローラ6の自動制御で灯具本体1を日没から日の出までの間に点灯させる。この場合、太陽電池5から得た電力を光源用コントローラ6を経て電源装置4の蓄電池に蓄電することにより、必要な電力量の全てを太陽エネルギーで賄うことが可能である。高輝度の白色LED11を光源としてなる本照明装置は、従来の蛍光灯に比して同じ明るさでありながら約1/3の電力で済み、かつ長期間(約13年)に亘って球切れが生じなく、また、光の波長が太陽光に近いので虫の飛来が非常に少なく、さらに蛍光灯が点灯しない寒冷地でも照度を確保しての使用が可能である。   In this installation state, the lamp main body 1 is turned on from sunset to sunrise by automatic control of the light source controller 6. In this case, by storing the electric power obtained from the solar cell 5 in the storage battery of the power supply device 4 via the light source controller 6, it is possible to cover all the necessary electric energy with solar energy. This lighting device using the high-brightness white LED 11 as a light source requires approximately one-third of the power while maintaining the same brightness as a conventional fluorescent lamp, and burns out for a long time (about 13 years). In addition, since the wavelength of light is close to that of sunlight, insects fly very little, and furthermore, it is possible to use while maintaining the illuminance even in a cold region where the fluorescent lamp is not turned on.

特筆すべきは、灯具本体1の照射範囲が格段に広くなる利点がある。即ち、「擬似T太字」の形状を成している灯具に格好のデザインと、図7に模式的に示す如く、反射板9による光反射能及びグローブ8の波状凹凸・湾曲板面による光屈折能が発揮する相乗作用とに基づいてグローブ8を透過した光は広い範囲に向けて拡散することになり、その結果、照明装置の直下位置を基点として地上の有効照射範囲は幅方向が奥行き方向に比して約2倍と相当に長い略楕円状領域を呈して、照射範囲が広大でかつ街路灯として理想的な照度分布を得ることが可能となったものである。また、グローブ8の照光面部の全面が、所謂、眼に優しい一様な明るさで輝くこともこの灯具本体1の特徴である。   It should be noted that there is an advantage that the irradiation range of the lamp body 1 is significantly widened. In other words, the design is suitable for a lamp having a “pseudo-T bold” shape, and as shown schematically in FIG. The light transmitted through the globe 8 is diffused toward a wide range based on the synergistic effect exerted by the function, and as a result, the effective irradiation range on the ground is such that the width direction is the depth direction from the position immediately below the lighting device as a base point. In this case, a substantially elliptical area which is substantially twice as long as that of the first embodiment is obtained, so that the illumination range is wide and an ideal illuminance distribution as a street light can be obtained. Another feature of the lamp body 1 is that the entire illuminated surface of the globe 8 shines with a so-called eye-friendly uniform brightness.

図9には、本考案の実施の形態に係る白色LED照明装置の点灯時における路面上での実測になる照度分布の態様が示される。実測に際し、灯具本体1を歩道の真上3450mの高さの位置で照光面を下向きにし、かつ長手側軸を水平線に対する傾斜角度θ1=10度の上向きに前方に延ばした状態となして設置した。灯具本体1としては、白色LED(品番;NSPW500BS、光度9.20cd/球)を120個千鳥足跡の配列で並べたもの(消費電力≒10W)を使用した。   FIG. 9 shows a form of an illuminance distribution to be actually measured on a road surface when the white LED lighting device according to the embodiment of the present invention is turned on. At the time of the actual measurement, the lamp main body 1 was installed with the illuminated surface facing downward at a height of 3450 m directly above the sidewalk and the longitudinal axis extended forward and upward at an inclination angle θ1 = 10 degrees with respect to the horizontal line. . As the lamp main body 1, a white LED (product number: NSPW500BS, luminous intensity: 9.20 cd / sphere) arranged in an arrangement of 120 staggered footprints (power consumption: ≒ 10 W) was used.

図9によれば、灯具本体1の真下の位置では、42.6lxの照度が得られ、遠ざかる程に35.0lx、20.0lx、5.0lxと減衰して、灯具本体1の長手方向(道路においては幅方向)では、2.3m(車道側)と3.3m(反車道側)の離隔位置で1.5lxが確保され、灯具本体1の幅方向(道路においては前後方向)では、前後両5.3m(車道側)の離隔位置で1.5lxが確保された。これに対して、灯具本体1のグローブ8を凹凸条面がなくて内外両面とも平滑面にさせてなる湾曲板面とした他は全て同等の条件のもので比較実験したところ、灯具本体1の幅方向(道路においては前後方向)においては、前後両3.0m(車道側)の離隔位置で1.5lxが確認された。
両対比の結果から明らかなように、殊に灯具本体1の幅方向において有効照射範囲の拡狭差は一層判然となるに至り、本考案に係る照明用光源を用いてなる照明装置の有利性がここに立証されるものである。
According to FIG. 9, at a position directly below the lamp body 1, an illuminance of 42.6 lx is obtained, and as the distance increases, the light intensity attenuates to 35.0 lx, 20.0 lx, and 5.0 lx, and the longitudinal direction of the lamp body 1 ( In the width direction on the road), 1.5 lx is secured at a separation position of 2.3 m (roadway side) and 3.3 m (anti-roadway side), and in the width direction of the lamp body 1 (front-back direction on the road), 1.5 lx was secured at the front and rear 5.3 m (roadway side) separated position. On the other hand, a comparative experiment was performed under the same conditions except that the globe 8 of the lamp body 1 was a curved plate surface having no uneven surface and both inner and outer surfaces were made smooth. In the width direction (the front-rear direction on the road), 1.5 lx was confirmed at a distance of 3.0 m (roadway side) from both front and rear.
As is clear from the comparison between the two, the difference in the effective irradiation range in the width direction of the lamp body 1 becomes more apparent, and the advantage of the illumination device using the illumination light source according to the present invention becomes more obvious. Is proved here.

ところで、電極部12に関連するLEDチップに対し間隔dBy the way, the distance d with respect to the LED chip related to the electrode 12 0 (図8参照)を有する直近後方部に反射板9を設けるに当たって、前述する最適条件を求めるべく発明者によって種々の実験・検討を重ねたが、前記間隔dIn order to obtain the above-mentioned optimal conditions, the inventor repeatedly conducted various experiments and studies on the provision of the reflector 9 in the immediate rearward portion having (see FIG. 8). 0 を変えた場合におけるLED11の発光照度の変化について実測したところ、以下に述べるような結果が得られた。なお、LED11としては胴径5mmφの砲弾型白色LED(製品番号;NSPW515BS)を用い、一方、反射板9としては前反射面が鏡面仕上げされてなるアルミニウム板体を用いて、LED11の真正面前方に300mm離した位置に対向配設した照度計によって該LED11の発光照度を実際に測定した。When the change of the light emission illuminance of the LED 11 was actually measured when the value was changed, the following results were obtained. A bullet-shaped white LED (product number: NSPW515BS) having a body diameter of 5 mmφ is used as the LED 11, while an aluminum plate body whose front reflection surface is mirror-finished is used as the reflection plate 9, and is directly in front of the LED 11. The emission illuminance of the LED 11 was actually measured by an illuminometer disposed at a position 300 mm apart.

上述の測定の結果は、dThe result of the above measurement is d 0 =2mmの場合で124ルクス、d= 124 lux for 2 mm, d 0 =3mmの場合で116ルクス、d= 116 lux for 3 mm, d 0 =4mmの場合で110ルクスとなり、一方、反射板9なしの場合では107ルクスであって、以上の結果から、2〜4mmの間隔d= 4 mm, 110 lux in the case without the reflector 9, and 107 lux in the case without the reflection plate 9. 0 を有する直近後方部の範囲内に前表面が位置するように寸法決めして反射板9を固定することが、電極部12での発光を減衰が最も少なく効率良く前方に向け反射させるための最適条件であることを明示している。Fixing the reflector 9 so that the front surface is positioned within the range of the immediate rearward portion having the above-mentioned shape is optimal for efficiently reflecting the light emitted from the electrode portion 12 forward with minimal attenuation. It clearly states that it is a condition.

本考案の一つの実施の形態に係る白色LED照明装置の全体姿図で、(イ)は正面図、(ロ)は右側面図。1 is an overall view of a white LED lighting device according to an embodiment of the present invention, wherein (a) is a front view and (b) is a right side view. 図1における灯具本体1の側面図。The side view of the lamp main body 1 in FIG. 図1における灯具本体1の底面図。The bottom view of the lamp main body 1 in FIG. 図1における灯具本体1の正面図。The front view of the lamp main body 1 in FIG. 図1における灯具本体1の斜め下方からの分離示斜視図。FIG. 2 is a perspective view of the lamp main body 1 in FIG. 1 separated from obliquely below. 図1における灯具本体1の後側方からの斜視図。FIG. 2 is a perspective view from the rear side of the lamp body 1 in FIG. 1. 図1における灯具本体1の後部における幅方向の概略示縦断面図。FIG. 2 is a schematic longitudinal sectional view of a rear part of the lamp body 1 in FIG. 1 in a width direction. 図7における白色LED照明用光源3の部分拡大図。FIG. 8 is a partially enlarged view of the white LED illumination light source 3 in FIG. 7. 本考案の実施形態に係る白色LED照明装置の点灯時実測になる照度分布図。FIG. 4 is an illuminance distribution diagram that is actually measured when the white LED lighting device according to the embodiment of the present invention is turned on.

符号の説明Explanation of reference numerals

1…灯具本体 2…灯具用支柱 3…白色LED照明用光源
4…電源装置 5…太陽電池 6…光源用コントローラ 7…灯具筐体
7A…灯具筐体後部 7B…灯具筐体前部 8…グローブ
8A…グローブ後部 8B…グローブ前部 9…反射板
10…LED用基板 11…白色LED 12…電極部
13…取付け基部 14…支持腕 15…下端支承部 16…遮熱板
17…平滑面 18…凹凸条面 19…吸気口 20…排気口 …間隔
DESCRIPTION OF SYMBOLS 1 ... Lamp main body 2 ... Lamp support 3 ... Light source for white LED illumination 4 ... Power supply device 5 ... Solar cell 6 ... Light source controller 7 ... Lamp housing 7A ... Rear of lamp housing 7B ... Front of lamp housing 8 ... Globe 8A: Rear part of glove 8B: Front part of glove 9 ... Reflector 10 ... LED substrate 11 ... White LED 12 ... Electrode part 13 ... Mounting base 14 ... Support arm 15 ... Lower end support part 16 ... Heat shield plate 17 ... Smooth surface 18 ... concave-convex surface 19 ... intake port 20 ... exhaust port d 0 ... interval

Claims (2)

照明装置における灯具本体(1)の照光面に対応する形状の板面に所要の複数個の保持孔が所定長ピッチの行列的な配置で備えられてなる反射板(9)に対して、複数個の白色LED(11)を前記各保持孔に介挿し保持させて各電極部(12)に関連するLEDチップの直近後方部において固定する一方、反射板(9)の直後方に並設したLED用基板(10)に各白色LED(11)の正負の端子を装着するとともに正負の端子毎に印加電圧に適合した直並列電気回路網を形成してなることを特徴とする白色LED照明用光源。 A plurality of required holding holes are provided in a plate surface having a shape corresponding to the illuminating surface of the lamp body (1) of the lighting device in a matrix arrangement with a predetermined pitch. The white LEDs (11) are inserted and held in the respective holding holes and fixed at the immediate rear portion of the LED chip associated with each electrode portion (12), while being arranged side by side immediately after the reflector (9). For white LED lighting, the positive and negative terminals of each white LED (11) are mounted on the LED substrate (10), and a series-parallel electric network suitable for the applied voltage is formed for each positive and negative terminal. light source. 複数個の白色LED(11)を反射板(9)に対して各電極部(12)に関連するLEDチップの2〜4mm後方部において固定してなる請求項1記載の白色LED照明用光源。
The light source for white LED illumination according to claim 1, wherein the plurality of white LEDs (11) are fixed to the reflector (9) at a position 2 to 4 mm behind the LED chip associated with each electrode portion (12).
JP2003270236U 2003-07-25 2003-07-25 Light source for white LED lighting Expired - Fee Related JP3100808U (en)

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JP2003270236U JP3100808U (en) 2003-07-25 2003-07-25 Light source for white LED lighting

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JP2003279440 Continuation 2002-12-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007173061A (en) * 2005-12-22 2007-07-05 Toshiba Lighting & Technology Corp Emergency lighting device
WO2010104046A1 (en) * 2009-03-07 2010-09-16 株式会社共立電機製作所 Led illumination device for street light

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007173061A (en) * 2005-12-22 2007-07-05 Toshiba Lighting & Technology Corp Emergency lighting device
WO2010104046A1 (en) * 2009-03-07 2010-09-16 株式会社共立電機製作所 Led illumination device for street light
JP5360621B2 (en) * 2009-03-07 2013-12-04 株式会社共立電機製作所 LED lighting device for street light

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