JP2017216138A - Lighting apparatus - Google Patents

Lighting apparatus Download PDF

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JP2017216138A
JP2017216138A JP2016109021A JP2016109021A JP2017216138A JP 2017216138 A JP2017216138 A JP 2017216138A JP 2016109021 A JP2016109021 A JP 2016109021A JP 2016109021 A JP2016109021 A JP 2016109021A JP 2017216138 A JP2017216138 A JP 2017216138A
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light
main body
led
light emitting
light distribution
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JP6795831B2 (en
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徹 稲葉
Toru Inaba
徹 稲葉
深谷 和正
Kazumasa Fukaya
和正 深谷
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Kaga Inc
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Abstract

PROBLEM TO BE SOLVED: To provide a structure of a lighting apparatus, in which an attachment state of an LED substrate and a light distribution unit to the lighting apparatus main body can be specified to prevent a pedestrian from feeling dazzling without the need for installing a glare suppressing member covering an outer side of each row of LEDs to suppress glare felt by a pedestrian under a road lamp, and which structure is also excellent in the effect of dissipating the heat generated in the lighting apparatus main body in conjunction with light emission of the LEDs.SOLUTION: As a measure for glare suppression, the light emitting part is attached to the main body at a position where light with angles of a predetermined value or more relative to the direction perpendicular to the light emitting part, in the outgoing light distributed toward a road from the light emitting part, is blocked by a lower peripheral edge of the main body.SELECTED DRAWING: Figure 17

Description

本発明は、LED(発光ダイオード)を光源とする照明器具に関し、特に、LEDの発光に伴うグレア抑制構成並びに放熱構造である照明器具に関する。   The present invention relates to a lighting fixture that uses an LED (light emitting diode) as a light source, and more particularly, to a lighting fixture that has a glare-suppressing configuration and a heat dissipation structure associated with light emission of an LED.

生活道路等に設置される照明器具の一つである防犯灯は、道路面を照射するために、道路の端に道路方向に所定間隔で設置された支柱に照明器具の後部に設けた取り付け部を取り付け、その取り付け状態において、前後方向に長い照明器具が道路幅方向に向かう前上がり状態となり、道路方向に長い配光を得るものがある(特許文献1)。   A security light, which is one of the lighting fixtures installed on living streets, is a mounting part provided at the rear of the lighting fixture on a post installed at predetermined intervals in the road direction at the end of the road to illuminate the road surface In the mounted state, there is a lighting device that is long in the front-rear direction and is in a front-up state in the road width direction, and obtains a long light distribution in the road direction (Patent Document 1).

特許文献1の照明器具は、金属製の略矩形の薄い板状の基板ベースの下面にLED基板が取り付けられ、LED基板には前後方向に延びる2列配置にLEDが取り付けられ、これらLEDごとのレンズ部を形成した透光性カバーが、LED基板の下側面を覆う。
この照明器具は、LEDが発する光によって歩行者が眩しさ(グレア)を感じることを抑制するために、各列のLEDの外側方を覆うグレア抑制部材を取り付けている。
In the luminaire of Patent Document 1, an LED substrate is attached to the lower surface of a substantially rectangular thin plate-like substrate base made of metal, and LEDs are attached to the LED substrate in a two-row arrangement extending in the front-rear direction. A translucent cover having a lens portion covers the lower surface of the LED substrate.
In order to suppress a pedestrian from feeling dazzling (glare) due to light emitted from the LED, this lighting fixture is provided with a glare suppressing member that covers the outer side of the LEDs in each row.

また、本発明の技術分野は、LED(発光ダイオード)を光源とする照明器具において、特に、LEDの発光に伴い発生する熱を効果的に放熱する構成を有する照明器具である。
その背景技術として、生活道路等に設置される照明器具の一つである防犯灯は、道路面を照射するために、道路の端に道路方向に所定間隔で設置された支柱等に、照明器具の後部に設けた取り付け部を取り付け、その取り付け状態において、前後方向に長い照明器具が道路幅方向に向かう状態となり、道路方向に長い配光を得るものがある(特許文献2)。
In addition, the technical field of the present invention is a lighting fixture having an LED (light emitting diode) as a light source, and in particular, a lighting fixture having a configuration that effectively dissipates heat generated by light emission of the LED.
As a background technology, a crime prevention light, which is one of the lighting fixtures installed on a living road, etc., is used to illuminate the road surface with pillars installed at predetermined intervals in the road direction at the end of the road. There is a case where a mounting portion provided at the rear portion is attached, and in the attached state, a lighting device that is long in the front-rear direction is directed in the road width direction, and a long light distribution is obtained in the road direction (Patent Document 2).

特許文献2の照明器具は、器具内の光源室には、LED基板に取り付けた光源となるLED(発光ダイオード)と、レンズ体と、反射板が配置され、光源室内後部には、反射板の高さの範囲内にLEDの電源を収容している。   In the lighting fixture of Patent Document 2, an LED (light emitting diode), a lens body, and a reflector serving as a light source attached to an LED substrate are disposed in a light source chamber in the fixture. The power source of the LED is accommodated within the height range.

特開2014ー116143号公報JP, 2014-116143, A 特開2014ー175074号公報JP 2014-175074 A

特許文献1では、歩行者が眩しさ(グレア)を感じることを抑制するために、各列のLEDの外側方を覆うグレア抑制部材が必要である。   In patent document 1, in order to suppress that a pedestrian feels glare (glare), the glare suppression member which covers the outer side of LED of each row | line | column is required.

本発明は、眩しさ(グレア)を抑制するために、特許文献1のようにグレア抑制部材を設けることなく、LED基板及びレンズ形態の配光部の照明器具本体へ取り付け状態を特定の状態とすることにより、歩行者が眩しさ(グレア)を感じることを抑制する構成を提供するものである。   In order to suppress glare (glare), the present invention is not provided with a glare suppressing member as in Patent Document 1, and the mounting state of the LED board and the lens-shaped light distribution unit on the lighting fixture body is defined as a specific state. By doing this, the structure which suppresses that a pedestrian feels glare (glare) is provided.

また、特許文献2では、電源の発する熱は、放熱シートを介して器具本体に伝達され放熱される。一方、LEDの発光に伴い発生する熱の放熱のために、LED基板の裏側である上面に当接する伝熱板を配置しており、LEDの発光に伴い発生する熱が、この伝熱板を介して金属製の器具本体に伝達され、この器具本体から放熱される。   Moreover, in patent document 2, the heat | fever which a power supply emits is transmitted to an instrument main body via a thermal radiation sheet, and is thermally radiated. On the other hand, in order to dissipate the heat generated with the light emission of the LED, a heat transfer plate that is in contact with the upper surface on the back side of the LED substrate is arranged, and the heat generated with the light emission of the LED The heat is transmitted to the metal instrument body through the heat and is radiated from the instrument body.

特許文献2では、このようにLEDの発光に伴い発生する熱の放熱のために、LED基板の裏側に伝熱板を配置する。また、電源の発する熱の放熱のために、放熱シートを配置する。   In Patent Document 2, a heat transfer plate is disposed on the back side of the LED substrate in order to dissipate heat generated with the light emission of the LED. In addition, a heat dissipating sheet is disposed to dissipate heat generated by the power source.

特許文献2では、器具本体が、ベースケース体(灯具本体)と、下カバー体(下部パネル体)と、蓋体の3部品の組み合わせで構成されている。   In Patent Document 2, the instrument main body is composed of a combination of three parts: a base case body (lamp main body), a lower cover body (lower panel body), and a lid body.

本発明は、この点に鑑み、このような伝熱板を設けることなく、LEDの発光に伴って照明器具本体内に発生する熱の放熱効果に優れた構成とする。   In view of this point, the present invention has a configuration excellent in the heat radiation effect of heat generated in the luminaire main body due to light emission of the LED without providing such a heat transfer plate.

また、本発明は、電源の発する熱の放熱のために、放熱シートを設けなくても電源の発する熱の放熱が良好に行える構成とする。   Further, the present invention has a configuration in which heat generated by the power source can be radiated satisfactorily without providing a heat radiating sheet for radiating heat generated by the power source.

また、本発明は、器具本体が、特許文献2のような3部品構成ではなく1部品によって構成し、LED基板と電源の支持が安定し、且つ放熱効果が良好に行われる照明器具を提供するものである。   In addition, the present invention provides a lighting fixture in which the fixture main body is constituted by one component instead of the three-part configuration as in Patent Document 2, the support of the LED substrate and the power source is stable, and the heat dissipation effect is performed satisfactorily. Is.

第1の本発明の照明器具は、不透光性の本体2の下面側の周縁部で囲まれた領域にLED素子7が放射する光を所定の配光にて出射する発光部6を備え、前記発光部6の出射光が道路方向に配光される照明器具において、
前記発光部6から前記道路方向に配光される出射光のうち、グレア抑制として、前記発光部6の鉛直方向に対して所定角度以上の出射光が前記開口部2Aの周縁で遮られる位置に、前記発光部6が前記本体2に配置された、
ことを特徴とする。
The lighting fixture of 1st this invention is equipped with the light emission part 6 which radiate | emits the light which the LED element 7 radiates | emits by the predetermined light distribution to the area | region enclosed by the peripheral part of the lower surface side of the translucent main body 2. In the lighting fixture in which the light emitted from the light emitting unit 6 is distributed in the road direction,
Out of the emitted light distributed from the light emitting unit 6 in the road direction, as a glare suppression, the emitted light having a predetermined angle or more with respect to the vertical direction of the light emitting unit 6 is blocked at the periphery of the opening 2A. The light emitting unit 6 is disposed in the main body 2.
It is characterized by that.

第2の本発明の照明器具は、上記第1において、
前記発光部6は、LED基板5の下側面にLED素子7が配置され、前記LED素子7を覆うように前記LED基板5に組み合わされ前記LED素子7が放射する光を所定の配光にて出射する配光ユニット8を備え、
前記配光ユニット8は、前記LED素子7ごとに所定配光の出射光を形成する配光特性部83Aを備え、
前記発光部6が前記領域に配置された状態で、前記配光特性部83Aと前記開口部2Aの周縁下端の関係が、前記所定角度以上の出射光が遮られる関係である、
ことを特徴とする。
The lighting fixture of the second aspect of the present invention is the above first aspect,
The light emitting unit 6 has an LED element 7 disposed on the lower surface of the LED substrate 5, and is combined with the LED substrate 5 so as to cover the LED element 7, and the light emitted from the LED element 7 is distributed with a predetermined light distribution. A light distribution unit 8 that emits light;
The light distribution unit 8 includes a light distribution characteristic portion 83A that forms outgoing light with a predetermined light distribution for each of the LED elements 7.
In a state where the light emitting unit 6 is disposed in the region, the relationship between the light distribution characteristic unit 83A and the lower end of the periphery of the opening 2A is a relationship in which emitted light with a predetermined angle or more is blocked.
It is characterized by that.

第3の本発明の照明器具は、上記第1または第2において、
前記本体2は、上壁2Tと前記上壁2Tから下降する周囲壁2Sを有し、前記周囲壁2Sで囲まれた下側に開口する開口部2Aを有する熱良導材で構成され、
前記発光部6は、前記本体2に取り付けられるLED基板5と、前記LED基板5の下側面に前後方向の直線状に配置される複数のLED素子7を備え、
前記LED基板5が取り付けられた状態で、前記所定角度以上の出射光が遮られる関係である、
ことを特徴とする。
The lighting apparatus of the third aspect of the present invention is the above first or second,
The main body 2 includes a heat conducting material having an upper wall 2T and a peripheral wall 2S descending from the upper wall 2T, and having an opening 2A opened to the lower side surrounded by the peripheral wall 2S.
The light emitting unit 6 includes an LED substrate 5 attached to the main body 2 and a plurality of LED elements 7 arranged on the lower side surface of the LED substrate 5 in a straight line in the front-rear direction.
In a state where the LED substrate 5 is attached, the emitted light of the predetermined angle or more is blocked.
It is characterized by that.

第4の本発明の照明器具は、上記第3において、
前記本体2には、前記開口部2Aの後部に対応して前記発光部6の点灯制御部が配置され、前記点灯制御部の前側に前記開口部2Aに対応して前記発光部6が配置された、
ことを特徴とする。
A lighting fixture according to a fourth aspect of the present invention is the above third aspect,
In the main body 2, a lighting control unit of the light emitting unit 6 is arranged corresponding to the rear part of the opening 2A, and the light emitting unit 6 is arranged corresponding to the opening 2A on the front side of the lighting control unit. The
It is characterized by that.

第5の本発明の照明器具は、上記第4において、
前記本体2は、上壁2Tと前記上壁2Tから前記開口部2Aの周縁に至る周囲壁2Sで囲まれ後部から前部へ向けて長い形態の内部空間4を有し、
前記内部空間4には、後部に前記点灯制御部が配置され、前部に前記発光部6が配置された、
ことを特徴とする。
In the fourth aspect of the lighting fixture of the fifth aspect of the present invention,
The main body 2 has an inner space 4 which is surrounded by an upper wall 2T and a peripheral wall 2S extending from the upper wall 2T to the periphery of the opening 2A and extending from the rear to the front.
In the internal space 4, the lighting control unit is disposed at the rear, and the light emitting unit 6 is disposed at the front.
It is characterized by that.

第6の本発明の照明器具は、上記第5において、
前記本体2は、前記上壁2Tから前記LED素子7に対応して前記LED基板5の上面に当接する前後方向に長い熱伝導リブ11を有し、
前記熱伝導リブ11の左右両側で、前記本体2の上壁2T及び周囲壁2Sと前記LED基板5との間に、前記本体2の後部から斜め上前方へ延び前記熱伝導リブ11の前端と後端で連通する空気通路が形成された、
ことを特徴とする。
In the fifth aspect of the lighting fixture of the sixth aspect of the present invention,
The main body 2 has heat conduction ribs 11 that are long in the front-rear direction in contact with the upper surface of the LED substrate 5 corresponding to the LED elements 7 from the upper wall 2T.
On the left and right sides of the heat conducting rib 11, between the upper wall 2T and the surrounding wall 2S of the main body 2 and the LED substrate 5, the front end of the heat conducting rib 11 extends obliquely upward and forward from the rear portion of the main body 2. An air passage communicating at the rear end was formed,
It is characterized by that.

第7の本発明の照明器具は、上記第1または第2において、
前記本体2は、上壁2Tと前記上壁2Tから前記開口部2Aの周縁に至る周囲壁2Sで囲まれた熱良導材で構成され、後部から前部へ向けて長い形態の内部空間4を有し、
前記発光部6は、前記本体2に取り付けられるLED基板5と、前記LED基板5の下側面に前後方向の直線状に配置される複数のLED素子7を備え、
前記LED基板5が取り付けられた状態で、前記所定角度以上の出射光が遮られる関係である、
ことを特徴とする。
In the first or second aspect of the lighting fixture of the seventh aspect of the present invention,
The main body 2 is composed of a heat conducting material surrounded by an upper wall 2T and a peripheral wall 2S extending from the upper wall 2T to the periphery of the opening 2A, and has an internal space 4 that is long from the rear to the front. Have
The light emitting unit 6 includes an LED substrate 5 attached to the main body 2 and a plurality of LED elements 7 arranged on the lower side surface of the LED substrate 5 in a straight line in the front-rear direction.
In a state where the LED substrate 5 is attached, the emitted light of the predetermined angle or more is blocked.
It is characterized by that.

第8の本発明の照明器具は、上記第1または第2において、
前記発光部6は、前記本体2に取り付けられるLED基板5と、前記LED基板5の下側面に前後方向の直線状に複数列配置された複数のLED素子7と、前記LED素子7ごとに所定配光の出射光を形成する配光特性部83Aを備え、
前記本体2は、上壁2Tと前記上壁2Tから前記開口部2Aの周縁に至る周囲壁2Sで囲まれ後部から前部へ向けて長い形態の内部空間4を有する熱良導材で構成され、
前記内部空間4には、後部に前記点灯制御部が配置され、前部に前記発光部6が配置され、
前記本体2は、前記上壁2Tから前記各列のLED素子7に対応して前記LED基板5の上面に当接する前後方向に並行に延びる熱伝導リブ11を有し、
前記熱伝導リブ相互間に形成されるトンネル状の第1空気通路及び前記熱伝導リブの外側面に沿って形成される第2空気通路が、後部から前部に向けて斜め前方に上昇する形態で前記内部空間に形成された、
ことを特徴とする。
In the first or second aspect of the lighting fixture of the eighth aspect of the present invention,
The light emitting unit 6 includes an LED substrate 5 attached to the main body 2, a plurality of LED elements 7 arranged in a plurality of straight lines in the front-rear direction on the lower surface of the LED substrate 5, and a predetermined number for each LED element 7. A light distribution characteristic portion 83A for forming light emitted from the light distribution;
The main body 2 is composed of a heat conducting material having an upper wall 2T and a peripheral wall 2S extending from the upper wall 2T to the periphery of the opening 2A and having a long internal space 4 from the rear to the front. ,
In the internal space 4, the lighting control unit is disposed at the rear, and the light emitting unit 6 is disposed at the front.
The main body 2 has heat conductive ribs 11 extending in parallel in the front-rear direction in contact with the upper surface of the LED substrate 5 corresponding to the LED elements 7 in each row from the upper wall 2T.
A mode in which a tunnel-shaped first air passage formed between the heat conducting ribs and a second air passage formed along the outer surface of the heat conducting rib rise obliquely forward from the rear toward the front. Formed in the internal space with
It is characterized by that.

第9の本発明の照明器具は、上記第1乃至第8のいずれかにおいて、
前記本体2は、前記開口部2Aの周縁下端に、前記開口部2Aの周縁を巡るフランジ2Fを備え、
前記開口部2Aを覆うように前記フランジ2Fの内側に組み合わされた透光性カバー3を備え、
前記発光部6と前記フランジ2Fの下端の関係が、前記所定角度以上の出射光が遮られる関係である、
ことを特徴とする。
A lighting fixture according to a ninth aspect of the present invention is the above-described first to eighth aspect,
The main body 2 includes a flange 2F around the periphery of the opening 2A at the lower end of the periphery of the opening 2A.
A translucent cover 3 combined inside the flange 2F so as to cover the opening 2A;
The relationship between the light emitting portion 6 and the lower end of the flange 2F is a relationship in which emitted light of the predetermined angle or more is blocked.
It is characterized by that.

本発明によって、配光部から開口部の左右の周縁部を通る出射光のうち、鉛直角で所定角度以上の出射光が、開口部の左右の周縁部によって制限されるため、所定角度未満の範囲では路面照射が良好となり、この所定角度以上の範囲ではグレア抑制が良好となる。このような構成は、内部空間を形成する本体の構成でもって、その内部空間内へのLED基板と発光部の位置決めによって達成できるため、特別なグレア抑制部材を設ける必要がなく、発光部の取り付けも安定したものとなる。   According to the present invention, out of the emitted light passing from the light distribution part to the left and right peripheral parts of the opening, the emitted light having a vertical angle equal to or larger than a predetermined angle is limited by the right and left peripheral parts of the opening. In the range, the road surface irradiation is good, and in the range of the predetermined angle or more, the glare suppression is good. Such a configuration can be achieved by positioning the LED substrate and the light emitting part in the internal space with the structure of the main body forming the internal space, so there is no need to provide a special glare suppressing member, and the light emitting part is attached. Is also stable.

また本発明によって、上記のようなグレア抑制と共に、LED素子の発光に伴い発生する熱は、LED基板から熱伝導リブを通して本体から放熱されるルートによって放熱される。また、LED基板の上側に熱伝導リブに沿って形成される前後方向の空気通路によって、内部空間の空気は流動し、LED素子の発光に伴い発生する熱及び制御部の発する熱が本体から放熱される。   Further, according to the present invention, together with the above-described glare suppression, the heat generated with the light emission of the LED element is dissipated by the route that is dissipated from the main body through the heat conducting rib from the LED substrate. In addition, air in the internal space flows by the air passages in the front-rear direction formed along the heat conduction ribs on the upper side of the LED substrate, and heat generated by light emission of the LED elements and heat generated by the control unit are dissipated from the main body. Is done.

本発明に係る照明器具の分解斜視図である。It is a disassembled perspective view of the lighting fixture which concerns on this invention. 本発明に係る照明器具の縦断側面図である。It is a vertical side view of the lighting fixture which concerns on this invention. 本発明に係る照明器具の本体を下方から視た図である。It is the figure which looked at the main body of the lighting fixture which concerns on this invention from the downward direction. 本発明に係るLED基板と制御基板を取り付けた状態の照明器具の本体を下方から視た図である。It is the figure which looked at the main body of the lighting fixture of the state which attached the LED board and control board which concern on this invention from the downward direction. 本発明に係る本体内のLED基板及び配光ユニットの配置並びに透光カバーの関係を分解状態にて断面で示す説明図である。It is explanatory drawing which shows the arrangement | positioning of the LED board in the main body which concerns on this invention, the arrangement | positioning of a light distribution unit, and the relationship of a translucent cover in a cross-section in an exploded state. 本発明に係る照明器具の本体と透光性カバーを組み合わせた状態を断面で示す説明図である。It is explanatory drawing which shows the state which combined the main body and translucent cover of the lighting fixture which concerns on this invention in a cross section. 本発明に係る照明器具を後方から視た図である。It is the figure which looked at the lighting fixture which concerns on this invention from back. 本発明に係る照明器具を支柱に取り付けた状態の側面図である。It is a side view of the state which attached the lighting fixture concerning this invention to the support | pillar. 本発明に係る照明器具を支柱に取り付けた状態を上方から視た図である。It is the figure which looked at the state which attached the lighting fixture concerning this invention to the support | pillar from upper direction. 本発明に係る照明器具をポールに取り付ける状態を断面で示す説明図である。It is explanatory drawing which shows the state which attaches the lighting fixture which concerns on this invention to a pole in a cross section. 本発明に係る照明器具をポールに取り付けた状態の側面図である。It is a side view of the state which attached the lighting fixture concerning this invention to the pole. 本発明に係るLED基板に配光ユニットを取り付けた平面状態の説明図である。It is explanatory drawing of the planar state which attached the light distribution unit to the LED board which concerns on this invention. 図12のA−A断面図である。It is AA sectional drawing of FIG. 図12のB−B断面図である。It is BB sectional drawing of FIG. 本発明に係る照明器具を道路に沿って配置した状態の配光状態の説明図である。It is explanatory drawing of the light distribution state of the state which has arrange | positioned the lighting fixture which concerns on this invention along the road. 本発明に係る照明器具によるグレア抑制状態の説明図である。It is explanatory drawing of the glare suppression state by the lighting fixture which concerns on this invention. 本発明に係る照明器具本体と発光部の関係によるグレア抑制構成を断面で示す説明図である。It is explanatory drawing which shows the glare suppression structure by the relationship between the lighting fixture main body which concerns on this invention, and a light emission part in a cross section. 図1において制御部14を絶縁シートで覆った状態を示す照明器具の分解斜視図である。It is a disassembled perspective view of the lighting fixture which shows the state which covered the control part 14 with the insulating sheet in FIG. 図2において制御部14を絶縁シートで覆った状態を示す照明器具の縦断側面図である。It is a vertical side view of the lighting fixture which shows the state which covered the control part 14 with the insulating sheet in FIG.

本発明の照明器具1は、不透光性の本体2の下面側の周縁部で囲まれた領域にLED素子7が放射する光を所定の配光にて出射する発光部6を備え、前記発光部6の出射光が道路方向に配光される照明器具において、前記発光部6から前記道路方向に配光される出射光のうち、グレア抑制として、前記発光部6の鉛直方向に対して所定角度以上の出射光が前記開口部2Aの周縁で遮られる位置に、前記発光部6が前記本体2に配置された構成である。   The luminaire 1 of the present invention includes a light emitting unit 6 that emits light emitted from the LED element 7 with a predetermined light distribution in a region surrounded by a peripheral portion on the lower surface side of the light-impermeable main body 2. In the lighting fixture in which the light emitted from the light emitting unit 6 is distributed in the road direction, out of the light emitted from the light emitting unit 6 in the road direction, glare suppression is performed with respect to the vertical direction of the light emitting unit 6. The light emitting unit 6 is arranged in the main body 2 at a position where emitted light having a predetermined angle or more is blocked by the periphery of the opening 2A.

その一つ形態として、図1、図2等に示すように、本体2は、アルミニウム等の熱良導材で構成され、上壁2Tと上壁2Tから下降する周囲壁2Sを有し、前記領域として、周囲壁2Sで囲まれた下側に開口する開口部2Aを形成した内部空間4を形成し、本体2は、支柱等への取り付け部10を後部に備える。照明器具1は、開口部2Aを塞ぐように本体2に組み合わされる透光性カバー3を備える前後方向に長い形態であり、開口部2Aに沿って発光部6を配置している。発光部6は、LED素子7が放射する光を所定の配光にて出射する部分であり、LED基板5の下側面にLED素子7が配置され、LED素子7を覆うようにLED基板5に組み合わされLED素子7が放射する光を所定の配光にて出射する配光ユニット8を備える。本体2は、内部空間4のうちの大半を占める前部空間4Aに、LED基板5の上面が当接する前後方向に延びる熱伝導リブ11を一体に有する。   As one form thereof, as shown in FIGS. 1, 2 and the like, the main body 2 is made of a heat conducting material such as aluminum and has an upper wall 2T and a peripheral wall 2S descending from the upper wall 2T, As an area, an internal space 4 is formed in which an opening 2A that is open on the lower side surrounded by the surrounding wall 2S is formed, and the main body 2 includes a mounting portion 10 for a column or the like at the rear. The lighting fixture 1 has a long shape in the front-rear direction including a translucent cover 3 combined with the main body 2 so as to close the opening 2A, and the light emitting unit 6 is disposed along the opening 2A. The light emitting unit 6 is a part that emits light emitted from the LED element 7 with a predetermined light distribution. The LED element 7 is disposed on the lower surface of the LED substrate 5 and covers the LED element 7 so as to cover the LED element 7. A light distribution unit 8 that emits the light emitted from the LED elements 7 in combination with a predetermined light distribution is provided. The main body 2 integrally has a heat conduction rib 11 extending in the front-rear direction in which the upper surface of the LED substrate 5 is in contact with the front space 4A occupying most of the internal space 4.

また、本発明は、下面に開口部2Aを有する不透光性の本体2の開口部2Aに対応して発光部6が取り付けられ、発光部6の出射光が道路方向に配光される照明器具において、
発光部6から道路方向に配光される出射光のうち、発光部6の鉛直方向に対する角度で所定角度以上の出射光が開口部2Aの周縁で遮られる位置に、発光部6が本体2に取り付けられている。
In the present invention, the light emitting part 6 is attached corresponding to the opening 2A of the opaque body 2 having the opening 2A on the lower surface, and the emitted light from the light emitting part 6 is distributed in the road direction. In the instrument,
Out of the emitted light distributed from the light emitting unit 6 in the road direction, the light emitting unit 6 is attached to the main body 2 at a position where the emitted light of a predetermined angle or more with respect to the vertical direction of the light emitting unit 6 is blocked by the periphery of the opening 2A. It is attached.

発光部6は、LED基板5の下側面にLED素子7が配置され、LED素子7を覆うようにLED基板5に組み合わされLED素子7が放射する光を所定の配光にて出射する配光ユニット8を備え、
配光ユニット8はLED素子7ごとに所定配光の出射光を形成する配光特性部83Aを備え、
発光部6が内部空間4に取り付けられた状態で、配光特性部83Aと開口部2Aの周縁下端の関係が、所定角度以上の出射光が遮られる関係である。
The light emitting unit 6 includes an LED element 7 disposed on the lower surface of the LED substrate 5, and is combined with the LED substrate 5 so as to cover the LED element 7 and emits light emitted from the LED element 7 with a predetermined light distribution. With unit 8,
The light distribution unit 8 includes a light distribution characteristic portion 83A that forms outgoing light of a predetermined light distribution for each LED element 7.
In a state in which the light emitting unit 6 is attached to the internal space 4, the relationship between the light distribution characteristic unit 83A and the lower end of the periphery of the opening 2A is a relationship in which emitted light having a predetermined angle or more is blocked.

本体2は、上壁2Tと上壁2Tから下降する周囲壁2Sを有し、周囲壁2Sで囲まれた下側に開口する開口部2Aを有する熱良導材で構成され、上壁2Tと周囲壁2Sで囲まれ後部から前部へ向けて長い形態の内部空間4を有し、内部空間4には、後部に点灯制御部14が配置され、前部に発光部6が配置されている。
本体2は、上壁2TからLED素子7に対応してLED基板5の上面に当接する前後方向に長い熱伝導リブ11を有し、
熱伝導リブ11の左右両側で、本体2の上壁2T及び周囲壁2SとLED基板5との間に、本体2の後部から斜め上前方へ延び熱伝導リブ11の前端と後端で連通する空気通路が形成されている。
以下、本発明の実施形態として、LED素子7が2列配置されたLED照明器具1について、図面を参照して説明する。
The main body 2 has an upper wall 2T and a peripheral wall 2S descending from the upper wall 2T, and is composed of a heat conducting material having an opening 2A that is open on the lower side surrounded by the peripheral wall 2S. It has an internal space 4 that is surrounded by the surrounding wall 2S and is long from the rear to the front. In the internal space 4, the lighting control unit 14 is disposed at the rear, and the light emitting unit 6 is disposed at the front. .
The main body 2 has a heat conducting rib 11 that is long in the front-rear direction in contact with the upper surface of the LED substrate 5 corresponding to the LED element 7 from the upper wall 2T.
On the left and right sides of the heat conducting rib 11, the upper wall 2 </ b> T and the surrounding wall 2 </ b> S of the main body 2 and the LED substrate 5 extend obliquely upward from the rear of the main body 2 and communicate with each other at the front and rear ends of the heat conducting rib 11. An air passage is formed.
Hereinafter, as an embodiment of the present invention, an LED lighting apparatus 1 in which two rows of LED elements 7 are arranged will be described with reference to the drawings.

図1乃至図6に示すように、本発明のLED照明器具1は、下面の略全域が開口するように開口部2Aを形成し内外両面に防錆効果のある熱伝導性塗装を施した金属製等の熱伝導良好な不透光性の本体2と、この本体2の開口部2Aを塞ぐように開口部2Aの周縁部に組み合わされる合成樹脂製の透光性カバー3を備える。透光性カバー3は下方に膨らんだ形態をなし、上端周縁部には上方へ突出するフランジ3Fが形成されている。本体2の開口部2Aの周縁部2A1を巡るように、下方へ突出する環状のフランジ2Fを形成している。開口部2Aの周縁部2A1には、フランジ2Fの内側に透光性カバー3のフランジ3Fが嵌り込む溝2Mを有する。   As shown in FIG. 1 to FIG. 6, the LED lighting device 1 of the present invention is a metal in which an opening 2A is formed so that substantially the entire lower surface is opened and a thermally conductive coating having a rust-preventing effect is applied to both the inner and outer surfaces. A translucent main body 2 having good thermal conductivity, such as a product, and a synthetic resin translucent cover 3 combined with the peripheral edge of the opening 2A so as to close the opening 2A of the main body 2 are provided. The translucent cover 3 has a form that swells downward, and a flange 3F that protrudes upward is formed at the peripheral edge of the upper end. An annular flange 2F protruding downward is formed so as to go around the peripheral edge 2A1 of the opening 2A of the main body 2. The peripheral edge 2A1 of the opening 2A has a groove 2M into which the flange 3F of the translucent cover 3 is fitted inside the flange 2F.

溝2Mにフランジ3Fが嵌り込むように、透光性カバー3を本体2の開口部2Aに組み合わせた状態で、ネジNJで開口部2Aの周縁部2A1に固定する。溝2Mとフランジ3Fのように嵌り合う凹凸構成によって、本体2と透光性カバー3との間が防水構造をなしている。なお、溝2Mの上底にパッキンを収容し、このパッキンがフランジ3Fによって圧縮される構成によって、更によい防水効果が得られる。
図8及び図11に示すように、LED照明器具1は、水平ラインに対して開口部2Aのラインが、後部1Aより前部1Bが角度αだけ若干高くなる傾斜状態を保つ。この状態で、透光性カバー3の下面は前部から後部に向けて次第に下方となる傾斜をなしており、後部から急峻に本体2に向けた立ち上がり部3Gを形成する形態をなし、透光性カバー3の最低部には、排水孔51とその周囲を囲む突壁40を備える。
In a state where the translucent cover 3 is combined with the opening 2A of the main body 2 so that the flange 3F fits into the groove 2M, the screw 2J is fixed to the peripheral portion 2A1 of the opening 2A. Due to the concavo-convex configuration that fits like the groove 2M and the flange 3F, a waterproof structure is formed between the main body 2 and the translucent cover 3. In addition, a further waterproof effect is acquired by the structure which accommodates packing in the upper bottom of the groove | channel 2M, and this packing is compressed by the flange 3F.
As shown in FIGS. 8 and 11, the LED lighting device 1 maintains an inclined state in which the line of the opening 2 </ b> A is slightly higher than the rear part 1 </ b> A by the angle α with respect to the horizontal line. In this state, the lower surface of the translucent cover 3 is inclined downward from the front to the rear, and forms a rising portion 3G that sharply faces the main body 2 from the rear. The lowest part of the cover 3 includes a drain hole 51 and a protruding wall 40 surrounding the drain hole 51.

内部空間4のうちの前部空間4Aにおいて、開口部2Aに沿ってLED基板5が、後述のように本体2に伝熱的に取り付けられる。電気絶縁性のLED基板5は、発光部6を構成する複数のLED素子(発光ダイオード)7を下面に実装し、LED素子7への電路が同じ下面にプリント配線として形成され、このプリント配線を絶縁被膜で覆っている。LED基板5の下面には、LED基板5と重ね合わせ状態に配光ユニット8が配置されている。配光ユニット8は透光性合成樹脂製であり、板状部81に複数の配光部82を一体形成しており、所定位置において板状部81が、LED基板5を貫通して本体2に形成した取り付けボス13Bに螺合するネジ9によって取り付けられる。これによって配光ユニット8がLED基板5の下面に取り付けられる。配光部82は、LED素子7ごとに所定の配光となる出射光を形成する部分であり、実施例ではレンズ形態をなし、LED照明器具1の前後方向軸に対して左右方向に長い配光特性を有する。図1及び図12に示すように、配光ユニット8は、前側配光ユニット8Pと後側配光ユニット8Qで構成している。   In the front space 4A of the internal space 4, the LED substrate 5 is attached to the main body 2 in a heat transfer manner along the opening 2A as described later. The electrically insulating LED substrate 5 has a plurality of LED elements (light-emitting diodes) 7 constituting the light-emitting portion 6 mounted on the lower surface, and an electric path to the LED element 7 is formed as a printed wiring on the same lower surface. It is covered with an insulating film. A light distribution unit 8 is disposed on the lower surface of the LED substrate 5 so as to overlap the LED substrate 5. The light distribution unit 8 is made of a light-transmitting synthetic resin, and a plurality of light distribution portions 82 are integrally formed on the plate-like portion 81, and the plate-like portion 81 penetrates the LED substrate 5 at a predetermined position and the main body 2. It attaches with the screw | thread 9 screwed together to the attachment boss | hub 13B formed in this. As a result, the light distribution unit 8 is attached to the lower surface of the LED substrate 5. The light distribution unit 82 is a part that forms emitted light that has a predetermined light distribution for each LED element 7. In the embodiment, the light distribution unit 82 has a lens shape and is long in the left-right direction with respect to the front-rear direction axis of the LED lighting device 1. Has optical properties. As shown in FIGS. 1 and 12, the light distribution unit 8 includes a front light distribution unit 8P and a rear light distribution unit 8Q.

本体2は、上壁2Tと上壁2Tから開口部2Aの周縁に至る周囲壁2Sで囲まれた熱良導材で構成される。本体2は、アルミニウムを材料としてダイキャスト成形され、下側に開口部2Aを形成するように上方に膨らむ形態の内部空間4を形成し、内部空間4の開口部2Aを透光性カバー3で覆う形態である。本体2は、本体2の後壁2Bから後方へ延出する状態に、電柱等の支柱へ取り付ける取り付け部10を一体形成している。また本体2は、内部空間4のうちの大半を占める前部空間4Aには、LED基板5の上面を支える前後方向に並行に延びる複数の熱伝導リブ11と、LED基板5を取り付ける取り付けボス13が本体2に一体に形成されている。取り付けボス13は、熱伝導リブ11にLED基板5の上面が当接した状態でプリント配線とは接続しない位置に形成したLED基板5の4隅の孔5Pを通してネジ12でLED基板5を取り付ける部分である。LED基板5は、取り付けボス13に取り付けられた状態で、中央部が前後方向に並ぶ本体2に一体形成されたボス13Bで支えられると共に、前部空間4Aにおける開口部2Aの多くを塞ぐように、開口部2Aよりも若干空間4側へ入った位置(前部空間4A側へ入った位置)において、開口部2Aに略並行に沿った状態である。本体2の内部空間4は、前部から後部に向けて次第に深くなる(開口部2Aを基準とすれば次第に上方に高くなる)ように形成している。   The main body 2 is constituted by a heat conducting material surrounded by an upper wall 2T and a peripheral wall 2S extending from the upper wall 2T to the periphery of the opening 2A. The main body 2 is die-cast using aluminum as a material, forms an internal space 4 that swells upward so as to form an opening 2A on the lower side, and the opening 2A of the internal space 4 is covered with a translucent cover 3. It is a form to cover. The main body 2 is integrally formed with a mounting portion 10 that is attached to a support pole such as a utility pole so as to extend rearward from the rear wall 2B of the main body 2. The main body 2 has a plurality of heat conductive ribs 11 extending in parallel in the front-rear direction for supporting the upper surface of the LED substrate 5 and a mounting boss 13 for attaching the LED substrate 5 in the front space 4A occupying most of the internal space 4. Is formed integrally with the main body 2. The mounting boss 13 is a portion for attaching the LED board 5 with the screws 12 through the holes 5P at the four corners of the LED board 5 formed at positions where the upper surface of the LED board 5 is in contact with the heat conductive rib 11 and not connected to the printed wiring. It is. The LED substrate 5 is supported by a boss 13B integrally formed on the main body 2 arranged in the front-rear direction while being attached to the attachment boss 13, and closes most of the opening 2A in the front space 4A. In a position slightly closer to the space 4 than the opening 2A (a position entering the front space 4A), the opening 2A is substantially parallel to the opening 2A. The internal space 4 of the main body 2 is formed so as to gradually become deeper from the front part toward the rear part (becomes higher gradually when the opening 2A is used as a reference).

LED照明器具1は、本体2の後壁2Bを後部1Aとしてそこから前部1Bへ長く延びる形態をなし、発光部6の発光によって、図15に示すように、配光ユニット8と透光性カバー3を通して道路の路面を道路方向に長い配光となるように照射する。
このため、本体2と透光性カバー3は、後部1Aから前部1Bへ長く延びる形態をなし、本体2内に形成される内部空間4も前後方向に長く、内部空間4はその前部空間4Aと後部空間4Bが連通状態に形成される。そして、LED基板5及び前部空間4Aも前後方向に長い形態であり、LED基板5は前後方向に長い矩形状の平板形状である。
The LED lighting apparatus 1 has a configuration in which the rear wall 2B of the main body 2 is used as a rear part 1A and extends from the front part 1B to the front part 1B. As shown in FIG. The cover 3 is irradiated so that the road surface of the road has a long light distribution in the road direction.
For this reason, the main body 2 and the translucent cover 3 are configured to extend from the rear portion 1A to the front portion 1B, the internal space 4 formed in the main body 2 is also long in the front-rear direction, and the internal space 4 is the front space. 4A and the rear space 4B are formed in a communication state. The LED substrate 5 and the front space 4A are also long in the front-rear direction, and the LED substrate 5 has a rectangular flat plate shape that is long in the front-rear direction.

LED基板5は前後方向に長い平板の矩形状をなし、LED素子7は、前後方向に長い矩形状のLED基板5の下側面に、前後方向に間隔を存して複数列状態に配置され、熱伝導リブ11は、LED素子7の各列の裏側(上面側)に対向する位置に形成する。
実施例の場合は、LED素子7はLED基板5に前後方向に等間隔でもって左右対称に2列状態に配置され、図5及び図6に示すように熱伝導リブ11は、2列配置のLED素子7に対向する位置の裏側(上面側)に形成している。熱伝導リブ11の後端は後部空間4Bに臨む位置であり、本体2と一体形成される熱伝導リブ11の前端は前部空間4Aの前壁2Gの後方位置である。
LED基板5の下面の後端部に、制御部14のコネクタ14Cと電気的に接続するためにコネクタ95が配置されている。
The LED substrate 5 has a flat rectangular shape that is long in the front-rear direction, and the LED elements 7 are arranged in a plurality of rows at intervals in the front-rear direction on the lower side surface of the rectangular LED substrate 5 that is long in the front-rear direction. The heat conductive rib 11 is formed at a position facing the back side (upper surface side) of each row of the LED elements 7.
In the case of the embodiment, the LED elements 7 are arranged in two rows symmetrically on the LED substrate 5 at equal intervals in the front-rear direction, and the heat conductive ribs 11 are arranged in two rows as shown in FIGS. It is formed on the back side (upper surface side) of the position facing the LED element 7. The rear end of the heat conductive rib 11 is a position facing the rear space 4B, and the front end of the heat conductive rib 11 formed integrally with the main body 2 is a rear position of the front wall 2G of the front space 4A.
A connector 95 is disposed at the rear end of the lower surface of the LED board 5 in order to be electrically connected to the connector 14C of the control unit 14.

LED基板5の上面には、電気的接続とならないように、下面のプリント配線とは接続しない状態に放熱用の熱伝導被膜(図示せず)が略全面に亘り形成されており、この熱伝導被膜が熱伝導リブ11に当接して、LED基板5の発熱をこの熱伝導被膜から熱伝導リブ11を経て本体2の表面から放熱する仕組みである。このため、LED基板5から熱伝導リブ11を通して本体2に伝達される熱の伝達効果を向上させるために、熱伝導リブ11は、LED素子7の裏側(上面側)に対向する位置に形成する。   On the upper surface of the LED substrate 5, a heat conductive film (not shown) for heat dissipation is formed over substantially the entire surface so as not to be electrically connected to the printed wiring on the lower surface. The coating comes into contact with the heat conducting rib 11 and the heat generated by the LED substrate 5 is radiated from the surface of the main body 2 through the heat conducting rib 11 from the heat conducting coating. For this reason, in order to improve the transmission effect of the heat transmitted from the LED substrate 5 to the main body 2 through the heat conductive rib 11, the heat conductive rib 11 is formed at a position facing the back side (upper surface side) of the LED element 7. .

また、LED照明器具1は、LED素子7に点灯電力を供給する電源部と、LED素子7の点灯と消灯の制御を行う制御回路とを含む制御部14が、前部空間4Aの後方に位置する後部空間4Bに配置されている。このため、制御部14は、LED基板5よりも後方配置となる。制御部14は、電源部を構成する電気部品及び前記制御回路を構成する電気部品EPがプリント配線基板である制御基板15の下側面に取り付けられる。
図1、図2等に示すように、制御基板15は、後部空間4Bに本体2から一体に突出する4個の取り付けボス16、16Bに載置した状態で、その対角線上の2か所の取り付けボス16をネジ17で固定し、本体2と熱伝導状態となる。残りの対角線上の2か所の取り付けボス16Bは、制御基板15に形成した対角線上の2か所の孔に嵌合する突起16Tを中央部に備えた位置決めボスである。
この取り付け状態で、制御基板15は、開口部2Aから深く空間4側へ入った位置(後部空間4Bの上壁に近く入った上方位置)であり、LED基板5よりも上方位置となるように、内部空間4内へ深く入った位置(本体2の上壁に近い位置)を維持する。
Further, in the LED lighting apparatus 1, a control unit 14 including a power supply unit that supplies lighting power to the LED element 7 and a control circuit that controls lighting and extinguishing of the LED element 7 is located behind the front space 4 </ b> A. Is arranged in the rear space 4B. For this reason, the control unit 14 is arranged behind the LED substrate 5. In the control unit 14, an electrical component that constitutes a power supply unit and an electrical component EP that constitutes the control circuit are attached to the lower surface of the control board 15 that is a printed wiring board.
As shown in FIG. 1, FIG. 2, etc., the control board 15 is placed on the four mounting bosses 16 and 16B integrally projecting from the main body 2 in the rear space 4B, and at two locations on the diagonal line. The mounting boss 16 is fixed with the screw 17 so as to be in a heat conduction state with the main body 2. The remaining two mounting bosses 16B on the diagonal line are positioning bosses provided with protrusions 16T fitted in the two diagonal holes formed on the control board 15 at the center.
In this attached state, the control board 15 is a position that is deeper into the space 4 side from the opening 2A (an upper position that is closer to the upper wall of the rear space 4B) and is higher than the LED board 5. The position (the position close to the upper wall of the main body 2) that has entered deep into the internal space 4 is maintained.

内部点検等のために透光性カバー3が本体2から取り外された状態で、作業者が制御部14の電気回路部分に触れると危険であるため、その危険防止のために、制御部14を下側から全体的に覆う保護カバー18を設けている。この保護カバー18は、後部空間4Bに本体2から一体に突出する4個の取り付けボス19、19Bに載置した状態で、その対角線上の2か所の取り付けボス19をネジ20で固定し、残りの対角線上の2か所の取り付けボス19Bは、保護カバー18に形成した対角線上の2か所の孔に嵌合する突起19Tを中央部に備えた位置決めボスである。
この取り付けによって、保護カバー18は、制御基板15及び電気部品EPを含む制御部14と離間した状態であり、制御基板15及び電気部品EPに作業者が触れることによる感電を防いでいる。
保護カバー18は、金属板か不透明状態の合成樹脂板で構成され、透光性カバー3を通して外部から制御部14が見えないようにする効果もある。
It is dangerous for an operator to touch the electric circuit portion of the control unit 14 with the translucent cover 3 removed from the main body 2 for internal inspection or the like. A protective cover 18 that covers the entire surface from the lower side is provided. The protective cover 18 is mounted on the four mounting bosses 19 and 19B integrally projecting from the main body 2 in the rear space 4B, and the two mounting bosses 19 on the diagonal are fixed with screws 20, The remaining two mounting bosses 19B on the diagonal line are positioning bosses provided with protrusions 19T fitted in the two diagonal holes formed in the protective cover 18 at the center.
By this attachment, the protective cover 18 is in a state of being separated from the control unit 14 including the control board 15 and the electric component EP, and prevents an electric shock caused by an operator touching the control board 15 and the electric component EP.
The protective cover 18 is made of a metal plate or an opaque synthetic resin plate, and has an effect of preventing the control unit 14 from being seen from the outside through the translucent cover 3.

LED照明器具1は、周囲の照度を検知して日暮れ時から夜明けまでの夜間にLED素子7が点灯するように制御部14に電気的に接続された照度センサSSを備える。照度センサSSは、制御基板15と電気的に接続されるセンサ基板15Hに取り付けた光を透過しないホルダ21内に保持されており、照度センサSSがLED照明器具1の後方の周囲の照度を検知するように、ホルダ21が本体2の後壁2Bに形成した採光窓(採光孔ともいう)2Hに保持されている。ホルダ21は、照度センサSSへ周囲の光が侵入するように後方に開口しており、この開口と採光窓2Hを防水状態に塞ぐように透光性のカバー22が採光窓2Hに挿入保持され、透光性のカバー22とホルダ21が結合されて、ホルダ21が採光窓2Hに保持される関係である。採光窓2Hは取り付け部10から外れた位置となるように、取り付け部10の横側で後壁2Bに形成され、照度センサSSがLED照明器具1の後方周囲の明るさを検知する。   The LED lighting device 1 includes an illuminance sensor SS that is electrically connected to the control unit 14 so that the LED element 7 is turned on at night from sunset to dawn by detecting ambient illuminance. The illuminance sensor SS is held in the holder 21 that does not transmit light attached to the sensor board 15H that is electrically connected to the control board 15, and the illuminance sensor SS detects the illuminance around the back of the LED lighting apparatus 1. As shown, the holder 21 is held by a daylighting window (also called a daylighting hole) 2H formed on the rear wall 2B of the main body 2. The holder 21 is opened rearward so that ambient light enters the illuminance sensor SS, and a translucent cover 22 is inserted and held in the daylighting window 2H so as to block the opening and the daylighting window 2H in a waterproof state. The translucent cover 22 and the holder 21 are combined, and the holder 21 is held in the daylighting window 2H. The daylighting window 2 </ b> H is formed on the rear wall 2 </ b> B on the lateral side of the attachment unit 10 so as to be positioned away from the attachment unit 10, and the illuminance sensor SS detects the brightness around the back of the LED lighting apparatus 1.

LED照明器具1へ外部電源から電力供給を行うために、LED照明器具1へ供給される外部電源ライン23は、本体2の後壁2Bに形成した貫通孔24に挿入される絶縁ゴム製のブッシング25を貫通し、その先端に取り付けた電源コネクタ26が制御部14の電源部のコネクタに電気的に接続される。   In order to supply power to the LED lighting apparatus 1 from an external power source, the external power supply line 23 supplied to the LED lighting apparatus 1 is an insulating rubber bushing inserted into a through hole 24 formed in the rear wall 2B of the main body 2. A power connector 26 that penetrates through 25 and is attached to the tip of the connector 25 is electrically connected to the connector of the power supply unit of the control unit 14.

配光ユニット8を構成する分離配光ユニット8P、8Qは、LED素子7の配列に合わせて、前後に間隔を存してLED基板5の下側面に重ね合わせ状態で組み合わされ、その板状部81がLED基板5を貫通して、一列配置の3個の取り付けボス13Bの中間を除き前後の取り付けボス13Bにそれぞれネジ9で取り付けられる。
分離配光ユニット8P、8QとLED素子7の配列については、2列状態のLED素子7のうち、前側の8個のLED素子7が前側の分離配光ユニット8Pと対応配置され、後側の8個のLED素子7が後側の分離配光ユニット8Qと対応配置され、図12に示すように、前側の8個のLED素子7に前側の分離配光ユニット8Pの第1の配光特性部83Aの夫々が対応し、後側の8個のLED素子7に後側の分離配光ユニット8Qの第1の配光特性部83Aの夫々が対応し、図15に示すような左右方向に長い配光となる。図15に示す波紋状の線は、照明器具1に近い領域の照度が高く、遠くなるにしたがって照度が低下する状態の説明用である。
The separated light distribution units 8P and 8Q constituting the light distribution unit 8 are combined in an overlapped state on the lower surface of the LED substrate 5 with a space in the front and rear according to the arrangement of the LED elements 7, and the plate-like portion 81 penetrates the LED board 5 and is attached to the front and rear mounting bosses 13B with screws 9 except for the middle of the three mounting bosses 13B arranged in a row.
Regarding the arrangement of the separate light distribution units 8P, 8Q and the LED elements 7, among the LED elements 7 in the two rows, the front eight LED elements 7 are arranged corresponding to the front separate light distribution unit 8P, and the rear Eight LED elements 7 are arranged to correspond to the rear separated light distribution unit 8Q, and as shown in FIG. 12, the first eight light emitting elements 7 have first light distribution characteristics of the front separated light distribution unit 8P. Each of the portions 83A corresponds to each of the eight LED elements 7 on the rear side, and each of the first light distribution characteristic portions 83A of the rear separated light distribution unit 8Q corresponds to the horizontal direction as shown in FIG. Long light distribution. The ripple-shaped line shown in FIG. 15 is for explanation of a state in which the illuminance in the area close to the lighting fixture 1 is high and the illuminance decreases as the distance increases.

配光ユニット8を構成する前側配光ユニット8Pと後側配光ユニット8Qは、LED照明器具1の前後方向に対して、左右方向に楕円形、長円形等のように長く延びる左右方向の配光特性が形成されるように、配光部82として、LED素子7ごとに所定配光の出射光を形成する第1の配光特性部83Aを形成している。このため、第1の配光特性部83Aは、図1、図2、図5、図6、図13、図14から明らかなように、板状部81からかまぼこ形態または米俵の半分の形態のように、断面が略一定の半円形で以って左右方向に長く端部が球面状をなして下方へ突出するレンズ構成であり、中央位置の内部にLED素子7が侵入する下方に向けて窄む窪み93が形成されている。
また、第1の配光特性部83Aの下方へ突出するレンズ構成の他の形態としては、LED素子7の出射光がレンズを通過して略均一配光となるようにするために、中央位置に板状部81方向へ曲線で窪みを形成する形態である。即ち、板状部81からかまぼこ形態または米俵の半分の形態のように、断面が略一定の半円形で以って左右方向に長く端部が球面状をなし、且つ中央位置に板状部81方向へ曲線で窪み、この窪みに対応して内部にLED素子7が侵入する下方に向けて窄む窪み93が形成される形態である。
実施例では、各配光特性部83Aからの出射光による配光は、同じ配光形態となる構成であるが、LED照明器具1の求める照射形態に応じて、それぞれ異なる配光形態となる構成でもよい。
The front-side light distribution unit 8P and the rear-side light distribution unit 8Q constituting the light distribution unit 8 are arranged in the left-right direction extending long like an ellipse or an oval in the left-right direction with respect to the front-rear direction of the LED lighting apparatus 1. A first light distribution characteristic portion 83 </ b> A that forms emitted light with a predetermined light distribution for each LED element 7 is formed as the light distribution portion 82 so that the light characteristics are formed. For this reason, the first light distribution characteristic portion 83A has a kamaboko shape or a half shape of rice bran as shown in FIGS. 1, 2, 5, 6, 6, 13, and 14. As shown in the figure, the lens has a semicircular cross section having a substantially constant semi-circular shape and a long end in the left-right direction. The end is spherical and protrudes downward, and is directed downward where the LED element 7 enters the center position. A recess 93 is formed.
Further, as another form of the lens configuration that protrudes downward from the first light distribution characteristic portion 83A, in order to allow the emitted light of the LED element 7 to pass through the lens and have a substantially uniform light distribution, the center position It is a form which forms a hollow with a curve in the plate-shaped part 81 direction. That is, the plate-like portion 81 has a semicircular shape with a substantially constant cross section, like a half-shaped shape of rice bran or a half of rice bran, is long in the left-right direction, has a spherical end, and has a plate-like portion at the center position. It is a form in which a dent 93 is formed in a curved line in the 81 direction, and a dent 93 is formed corresponding to the dent and is narrowed downward in which the LED element 7 enters.
In the embodiment, the light distribution by the light emitted from each light distribution characteristic portion 83A is the same light distribution form, but the light distribution form is different depending on the irradiation form required by the LED lighting device 1. But you can.

なお、図面に示す第1の配光特性部83Aは、中央部に長さ方向の直線が描かれ、この直線の前後端部から4本の斜線が描かれているが、これはコンピュータ作図によって生じる曲面の表示であり、配光特性部83Aの形態は上記のように、断面が略一定の半円形状の長さの両端部が球面形状のレンズ構成である。   In the first light distribution characteristic portion 83A shown in the drawing, a straight line in the length direction is drawn at the center, and four oblique lines are drawn from the front and rear ends of this straight line. The resulting curved surface is displayed, and the light distribution characteristic portion 83A has a semi-circular length with a substantially constant cross section, as described above, and has a spherical lens structure.

取り付け部10は、電柱等の支柱PLに取り付けバンド30によって取り付ける第1取り付け部101と、支柱PLに代わり先端部が横へ延びる円筒状または円柱状のポールPPの先端部が挿入される第2取り付け部102を備えており、第1取り付け部101と第2取り付け部102は本体2と一体に形成される。   The mounting portion 10 includes a first mounting portion 101 that is attached to a support pole PL such as a power pole by a mounting band 30 and a second end portion in which a tip end portion of a cylindrical or columnar pole PP is inserted instead of the support column PL. An attachment portion 102 is provided, and the first attachment portion 101 and the second attachment portion 102 are formed integrally with the main body 2.

第2取り付け部102は、ポールPPの斜め上方に向く先端部が挿入されるように、本体2の後壁2Bに連続して後方へ延びる円筒状をなし、その円筒状の前面は本体2の後壁2Bで塞がれ、その円筒状の後面は解放してポールPPの先端部PP1が挿入される挿入開口102Kを有する形態である。また、第2取り付け部102は、円筒状の後端面102Rは、支柱PLの柱面(周面)が接触しないような逃げ部となる曲面形状をなす。このため、円筒状の後端面102Rの曲面は、好ましくは、支柱PLの柱面(周面)の曲面と同等または若干小さな半径で描かれる曲面形状である。   The second attachment portion 102 has a cylindrical shape extending continuously rearward from the rear wall 2B of the main body 2 so that a tip portion facing obliquely upward of the pole PP is inserted. The cylindrical rear surface is closed by the rear wall 2B and has an insertion opening 102K into which the distal end PP1 of the pole PP is inserted. Further, in the second attachment portion 102, the cylindrical rear end surface 102R has a curved surface shape that serves as an escape portion so that the column surface (circumferential surface) of the support column PL does not come into contact. For this reason, the curved surface of the cylindrical rear end surface 102R is preferably a curved surface drawn with a radius equal to or slightly smaller than the curved surface of the column surface (circumferential surface) of the support column PL.

第1取り付け部101は、第2取り付け部102と一体化する状態で、第2取り付け部102の左右両側に並行状態に配置された縦方向の板状の左右取り付け板部101Bで構成される。左右取り付け板部101Bの後端面101Rは、支柱PLの柱面(周面)に縦方向に沿う直線状をなす。左右取り付け板部101Bと第2取り付け部102には、取り付けバンド30が挿通され係止する縦方向に長い取り付け孔31を有する。   The first attachment portion 101 is composed of vertical plate-like left and right attachment plate portions 101 </ b> B arranged in parallel on the left and right sides of the second attachment portion 102 in a state of being integrated with the second attachment portion 102. The rear end surface 101R of the left and right mounting plate portion 101B has a linear shape along the vertical direction on the column surface (circumferential surface) of the support column PL. The left and right attachment plate portions 101B and the second attachment portion 102 have attachment holes 31 that are long in the vertical direction through which the attachment band 30 is inserted and locked.

このように第1取り付け部101により支柱PLにLED照明器具1を取り付けた状態は、図8に示すように、LED照明器具1は、水平ラインに対して開口部2Aのラインが、後部1Aより前部1Bが角度αだけ若干高くなる傾斜状態を保つ。このような状態となるように、取り付け部101が構成されている。これによって、配光部82のレンズ効果によって、LED照明器具1の前後方向軸に対して左右方向に長い配光が形成されるため、左右方向に長い道路面を照射することができる。   As shown in FIG. 8, the LED lighting device 1 is attached to the support column PL by the first mounting portion 101 as described above. As shown in FIG. The front portion 1B maintains an inclined state in which the front portion 1B is slightly raised by an angle α. The attachment portion 101 is configured so as to be in such a state. As a result, a light distribution that is long in the left-right direction with respect to the front-rear direction axis of the LED lighting device 1 is formed by the lens effect of the light distribution unit 82, so that a road surface that is long in the left-right direction can be irradiated.

また、第2取り付け部102によりLED照明器具1を取り付けた状態は、図11に示すようにLED照明器具1は、水平ラインに対して開口部2Aのラインが、後部1Aより前部1Bが角度αだけ若干高くなる傾斜状態を保つ。このような状態となるように、取り付け部102が構成されている。これによって、配光部82のレンズ効果によって、LED照明器具1の前後方向軸に対して左右方向に長い配光が形成されるため、左右方向に長い道路面を照射することができる。   Further, as shown in FIG. 11, the LED lighting fixture 1 is attached to the second mounting portion 102 as shown in FIG. Keep the slope slightly higher by α. The attachment portion 102 is configured so as to be in such a state. As a result, a light distribution that is long in the left-right direction with respect to the front-rear direction axis of the LED lighting device 1 is formed by the lens effect of the light distribution unit 82, so that a road surface that is long in the left-right direction can be irradiated.

このような第1の配光特性部83Aによって、LED素子7の発光がレンズ効果によって左右方向へ拡がり、LED照明器具1の下方を左右に通る道路面に左右方向に長く延びる配光が形成される。この状態の道路面の配光の一例を図15に示す。   By such a first light distribution characteristic portion 83A, the light emission of the LED element 7 spreads in the left-right direction due to the lens effect, and a light distribution extending in the left-right direction is formed on the road surface passing left and right under the LED lighting fixture 1. The An example of the light distribution on the road surface in this state is shown in FIG.

上記のように、本体2の内部空間4は、前部から後部に向けて次第に深くなるように(開口部2Aを基準とすれば次第に上方に高くなるように)形成しており、内部空間4には、熱伝導リブ11の左右側面に沿って後部から前部に向けて斜め前方に上昇する空気通路が形成される。このため、取り付け部10を支柱PLに取付けた状態で、水平ラインに対して開口部2Aのラインが略並行となる水平取り付け状態でも、同様の空気通路が形成される。
また、上記のように支柱PL等への取り付けによって、水平ラインに対して開口部2Aのラインが、後部1Aより前部1Bが角度αだけ若干高くなる傾斜取り付け状態を保つことにより、水平取り付け状態よりも更に斜め前方に上向くため、内部空間4には、熱伝導リブ11の左右側面に沿って後部から前部に向けて斜め前方に上昇する空気通路が形成される。
このため、本体2内の内部空間4では、熱伝導リブ11の左右側面に沿って後部空間4Bから前部空間4Aへ向けた空気の流れが生じ易くなる。
As described above, the internal space 4 of the main body 2 is formed so as to gradually become deeper from the front part toward the rear part (so as to gradually increase upward with the opening 2A as a reference). Is formed with an air passage that rises obliquely forward from the rear toward the front along the left and right side surfaces of the heat conducting rib 11. For this reason, a similar air passage is formed even in a horizontal attachment state in which the line of the opening 2A is substantially parallel to the horizontal line in a state where the attachment portion 10 is attached to the support column PL.
In addition, by attaching to the support PL as described above, the line of the opening 2A is maintained in an inclined attachment state in which the front part 1B is slightly higher than the rear part 1A by an angle α with respect to the horizontal line. Further, the air passage is formed in the internal space 4 so as to rise obliquely forward from the rear to the front along the left and right side surfaces of the heat conducting rib 11.
For this reason, in the internal space 4 in the main body 2, an air flow from the rear space 4 </ b> B toward the front space 4 </ b> A tends to occur along the left and right side surfaces of the heat conducting rib 11.

図示のように並行な熱伝導リブ11を形成する場合は、並行な熱伝導リブ11とLED基板5によって囲まれたトンネル状の第1空気通路1Pと、第1空気通路の左右両外側となる位置で熱伝導リブ11の外側面に沿った第2空気通路1Qが、後部から前部に向けて斜め前方に上昇する形態で内部空間4に形成されている。第1空気通路1Pの前端と後端が解放するように、第1空気通路1Pと第2空気通路1Qは、並行な熱伝導リブ11の前端と後端で連通している。   When the parallel heat conductive ribs 11 are formed as illustrated, the tunnel-shaped first air passage 1P surrounded by the parallel heat conductive ribs 11 and the LED substrate 5 and the left and right outer sides of the first air passage are provided. The second air passage 1Q along the outer surface of the heat conducting rib 11 at a position is formed in the internal space 4 in a form that rises obliquely forward from the rear toward the front. The first air passage 1P and the second air passage 1Q communicate with each other at the front end and the rear end of the parallel heat conducting ribs 11 so that the front end and the rear end of the first air passage 1P are released.

この様な構成によって、照明器具1内に空気流通が形成される。
その一つとして、第1空気通路1Pの温度よりも熱伝導リブ11の外側面に沿う第2空気通路1Qの温度が相対的に低くなり易い。このため、制御部14の発熱とLED素子7の発熱によって温められた内部空間4の空気は、主として後部空間4Bから前部空間4Aに向けて第1空気通路1Pを通り、熱伝導リブ11の先端部から第2空気通路1Qを経て後部空間4B側へ帰還し、再び第1空気通路1Pを流れる空気流通が形成される。この場合、空気は熱伝導リブ11及び本体2の壁面と接触しつつ流れるため、本体2への熱伝達が促進される。
図5に示すように、LED基板5の左右両端部が第2空気通路1Qの下側を覆う状態とすることにより、第2空気通路1Qの空気流通がスムーズになる。
このような空気循環は、照明器具1の周囲温度によって変化することもある。
With such a configuration, an air flow is formed in the luminaire 1.
As one of them, the temperature of the second air passage 1Q along the outer surface of the heat conducting rib 11 tends to be relatively lower than the temperature of the first air passage 1P. For this reason, the air in the internal space 4 heated by the heat generated by the control unit 14 and the heat generated by the LED element 7 mainly passes through the first air passage 1P from the rear space 4B toward the front space 4A, and the heat conduction ribs 11 An air flow that returns from the front end portion to the rear space 4B side through the second air passage 1Q and flows through the first air passage 1P is formed. In this case, since air flows while contacting the heat conductive rib 11 and the wall surface of the main body 2, heat transfer to the main body 2 is promoted.
As shown in FIG. 5, when the left and right ends of the LED substrate 5 cover the lower side of the second air passage 1Q, the air flow in the second air passage 1Q becomes smooth.
Such air circulation may vary depending on the ambient temperature of the luminaire 1.

また、もう一つの空気循環として、制御部14の発熱とLED素子7の発熱によって温められた内部空間4の空気は、主として第1空気通路1Pと第2空気通路1Qを通って本体2の後部1Aから前部1Bに向けて流れ、熱伝導リブ11の先端部からLED基板5と透光性カバー3の間の空間へ流れ、LED基板5と透光性カバー3の間の空間を経て後部空間4B側へ帰還し、再び第1空気通路1Pと第2空気通路1Qを流れる空気流通が形成される。この場合、空気は熱伝導リブ11及び本体2の壁面と接触しつつ流れるため、本体2への熱伝達が促進される。
図5に示すように、LED基板5の左右両端部が第2空気通路1Qの下側を覆う状態とすることにより、第2空気通路1Qの空気流通がスムーズになる。
このような空気流通は、照明器具1の周囲温度によって変化することもある。
Further, as another air circulation, the air in the internal space 4 heated by the heat generated by the control unit 14 and the heat generated by the LED element 7 mainly passes through the first air passage 1P and the second air passage 1Q, and the rear portion of the main body 2. It flows from 1A toward the front portion 1B, flows from the tip of the heat conducting rib 11 to the space between the LED substrate 5 and the translucent cover 3, and passes through the space between the LED substrate 5 and the translucent cover 3 to the rear portion Returning to the space 4B side, an air flow flowing through the first air passage 1P and the second air passage 1Q again is formed. In this case, since air flows while contacting the heat conductive rib 11 and the wall surface of the main body 2, heat transfer to the main body 2 is promoted.
As shown in FIG. 5, when the left and right ends of the LED substrate 5 cover the lower side of the second air passage 1Q, the air flow in the second air passage 1Q becomes smooth.
Such air flow may change depending on the ambient temperature of the lighting fixture 1.

上記のように、LED素子7の発光に伴い発生する熱は、LED基板5から熱伝導リブ11を通して本体2から放熱されるルートによって放熱され、また空気循環によって本体2との接触が促進され、LED素子7の発光に伴い発生する熱及び制御部14の発する熱が本体2から良好に放熱される。   As described above, the heat generated by the light emission of the LED element 7 is radiated by the route radiated from the main body 2 through the heat conducting rib 11 from the LED substrate 5, and the contact with the main body 2 is promoted by air circulation, The heat generated with the light emission of the LED element 7 and the heat generated by the control unit 14 are radiated from the main body 2 well.

また本体2は、1部品によって構成でき部品点数も少なく組み立て工数も少なくなる。更に、熱伝導リブ11と、取り付けボス13及び16によって、LED基板5と制御基板15の支持が安定し、且つ放熱効果が良好に行われる照明器具となる。   Further, the main body 2 can be constituted by one part, and the number of parts is small and the number of assembling steps is reduced. Furthermore, the heat conduction rib 11 and the mounting bosses 13 and 16 provide a lighting fixture in which the support of the LED board 5 and the control board 15 is stable and the heat dissipation effect is performed well.

LED基板5は、所謂金属基板でもよいが、低コスト化として、電気絶縁性の一枚の合成樹脂製を採用する。上記のような本体2、LED基板5、制御部14、熱伝導リブ11の関係構成は、LED基板5が電気絶縁性の平板である場合に、LED素子7の発熱を効果的に放熱する効果がある。
なお、電気絶縁性の平板のLED基板5のLED素子7が実装された下面とは反対側の上側面に、熱伝導被膜を形成することにより、LED素子7の発熱は、LED基板5とその上側の熱伝導被膜を通して熱伝導リブ11から本体2に伝達され、効果的な放熱が行える。
The LED substrate 5 may be a so-called metal substrate, but an electrically insulating synthetic resin is used for cost reduction. The related configuration of the main body 2, the LED substrate 5, the control unit 14, and the heat conducting rib 11 as described above is an effect of effectively dissipating the heat generated by the LED element 7 when the LED substrate 5 is an electrically insulating flat plate. There is.
In addition, by forming a heat conductive film on the upper surface opposite to the lower surface on which the LED element 7 of the electrically insulating flat LED substrate 5 is mounted, the heat generated by the LED element 7 It is transmitted from the heat conductive rib 11 to the main body 2 through the upper heat conductive film, and effective heat dissipation can be performed.

上記のように、照明器具1は、
下面に開口部2Aを形成した内部空間4を有し開口部2Aに沿って内部空間4に収容された発光部6を備え支柱等への取り付け部10を後部に備える金属製の本体2と、開口部2Aを塞ぐように本体2に組み合わされる透光性カバー3を備える前後方向に長い形態であり、
発光部6は、LED基板5の下側面に前後方向に複数のLED素子7が直線状に配置された構成であり、
本体2は、内部空間4のうちの大半を占める前部空間4Aに、直線状に配置されたLED素子7の裏側に対応して、LED基板5の上面が当接する前後方向に延びる熱伝導リブ11を一体に有し、
内部空間4のうちの前部空間4Aに連続する後部空間4Bに収容保持されるLED素子7の制御部14を備え、
内部空間4は、熱伝導リブ11の左右側面に沿って後部から前部に向けて斜め前方に上昇する空気通路を有する。
As mentioned above, the lighting fixture 1 is
A metal main body 2 having an inner space 4 having an opening 2A formed on the lower surface, a light emitting portion 6 accommodated in the inner space 4 along the opening 2A, and a mounting portion 10 for a column or the like at the rear; It is a long form in the front-rear direction including a translucent cover 3 combined with the main body 2 so as to close the opening 2A,
The light emitting unit 6 has a configuration in which a plurality of LED elements 7 are linearly arranged in the front-rear direction on the lower surface of the LED substrate 5.
The main body 2 is a heat conducting rib extending in the front-rear direction in which the upper surface of the LED substrate 5 abuts the front space 4A occupying most of the internal space 4 corresponding to the back side of the LED elements 7 arranged linearly. 11 integrally,
The controller 14 of the LED element 7 that is accommodated and held in the rear space 4B that is continuous with the front space 4A of the internal space 4 is provided,
The internal space 4 has an air passage that rises obliquely forward from the rear to the front along the left and right side surfaces of the heat conducting rib 11.

また、照明器具1は、
下面に開口部2Aを形成した内部空間4を有し開口部2Aに沿って内部空間4に収容された発光部6を備え支柱等への取り付け部10を後部に備える金属製の本体2と、開口部2Aを塞ぐように本体2に組み合わされる透光性カバー3を備える前後方向に長い形態であり、
発光部6は、LED基板5の下側面に前後方向に直線状配置の複数のLED素子7が複数列状態に配置され、
本体2は、内部空間4のうちの大半を占める前部空間4Aに、直線状に配置されたLED素子7の各列の裏側に対応して、LED基板5の上面が当接する前後方向に並行に延びる熱伝導リブ11を一体に有し、
内部空間4のうちの前部空間4Aに連続する後部空間4Bに本体2に取り付けられたLED素子7の制御部14を備え、
熱伝導リブ11相互間に形成されるトンネル状の第1空気通路1P及び熱伝導リブ11の外側面に沿って形成される第2空気通路1Qが、後部から前部に向けて斜め前方に上昇する形態で内部空間4に形成されている。
Moreover, the lighting fixture 1 is
A metal main body 2 having an inner space 4 having an opening 2A formed on the lower surface, a light emitting portion 6 accommodated in the inner space 4 along the opening 2A, and a mounting portion 10 for a column or the like at the rear; It is a long form in the front-rear direction including a translucent cover 3 combined with the main body 2 so as to close the opening 2A,
The light emitting unit 6 includes a plurality of LED elements 7 linearly arranged in the front-rear direction on the lower surface of the LED substrate 5 in a plurality of rows.
The main body 2 is parallel to the front-rear direction in which the upper surface of the LED substrate 5 contacts the front space 4A occupying most of the internal space 4 corresponding to the back side of each row of the LED elements 7 arranged linearly. A heat conducting rib 11 extending to
The controller 14 of the LED element 7 attached to the main body 2 is provided in the rear space 4B continuous with the front space 4A of the internal space 4,
The tunnel-shaped first air passage 1P formed between the heat conducting ribs 11 and the second air passage 1Q formed along the outer surface of the heat conducting rib 11 rise obliquely forward from the rear toward the front. It is formed in the internal space 4 in such a form.

また、照明器具1は、
LED基板5は開口部2Aに沿って前部空間4A内の下部に配置され、
制御部14は、熱伝導リブ11の後方の後部空間4BにLED基板5よりも上方位置で本体2に熱伝導状態の取り付けである。
Moreover, the lighting fixture 1 is
The LED substrate 5 is arranged at the lower part in the front space 4A along the opening 2A,
The control unit 14 is attached in a heat conductive state to the main body 2 at a position higher than the LED substrate 5 in the rear space 4B behind the heat conductive rib 11.

また、照明器具1は、
制御部14は電気部品を取り付けた制御基板15を有し、
LED基板5及び制御基板15は、それぞれ本体2に一体形成の取り付けボスにネジ固定されている。
Moreover, the lighting fixture 1 is
The control unit 14 includes a control board 15 on which electrical components are attached.
The LED board 5 and the control board 15 are each screwed to a mounting boss formed integrally with the main body 2.

また、照明器具1は、
熱伝導リブ11の後端は後部空間4Bに臨む位置であり、熱伝導リブ11の前端は前部空間4Aの前壁の後方位置である。
Moreover, the lighting fixture 1 is
The rear end of the heat conductive rib 11 is a position facing the rear space 4B, and the front end of the heat conductive rib 11 is a rear position of the front wall of the front space 4A.

また、照明器具1は、
並行の熱伝導リブ11とLED基板5によって囲まれたトンネル状の第1空気通路1Pと、第1空気通路1Pの左右両外側となる位置で熱伝導リブ11の外側面に沿った第2空気通路1Qは、並行な熱伝導リブ11の前端と後端で連通している。
Moreover, the lighting fixture 1 is
Tunnel-shaped first air passage 1P surrounded by parallel heat conduction ribs 11 and LED substrate 5, and second air along the outer surface of heat conduction ribs 11 at positions on both the left and right sides of first air passage 1P. The passage 1Q communicates with the front end and the rear end of the parallel heat conducting ribs 11.

次にグレア抑制構造について説明する。
本発明は、図16に示すように、道路灯において、非照射面である道路の路面から鉛直方向VTの高さ4.5mに設置された光源となる発光部6から出射される出射光のうち、発光部6の中心部における鉛直方向VTから遠い地点で、路面から1.5mの高さにある人の目線の水平方向に対する所定の仰角以上の出射光が、前記人の目に入らないように遮ることによって、その人に対する眩しさ(グレア)を抑制する技術の提供である。
Next, the glare suppression structure will be described.
As shown in FIG. 16, in the present invention, in the road lamp, the emitted light emitted from the light emitting unit 6 serving as a light source installed at a height of 4.5 m in the vertical direction VT from the road surface which is a non-irradiated surface. Among them, at a point far from the vertical direction VT in the central portion of the light emitting unit 6, the emitted light exceeding a predetermined elevation angle with respect to the horizontal direction of the human eye line at a height of 1.5 m from the road surface does not enter the human eye. It is provision of the technique which suppresses the glare (glare) with respect to the person by obstructing like this.

この場合、照明器具に特別な遮光板を取り付けることなく、照明器具の必須構成部品の範囲内で上記のような眩しさ(グレア)を抑制する技術を達成することに特徴がある。   In this case, there is a feature in achieving a technique for suppressing the above glare (glare) within the range of the essential components of the lighting fixture without attaching a special light shielding plate to the lighting fixture.

上記のように、照明器具1は、第1取り付け部101または第2取り付け部102による取り付けのいずれにおいても、前後方向に長い照明器具1が道路幅方向に向かう前上がり状態となり、図15に示すように、道路方向に長い配光を得る。   As described above, the luminaire 1 is in a state where the luminaire 1 that is long in the front-rear direction is moved upward in the road width direction in any of the attachment by the first attachment portion 101 or the second attachment portion 102, and is shown in FIG. So get a long light distribution in the road direction.

本体2は、図1、図5、図17に示すように、本体2の開口部2Aの周縁部2A1を巡るように、下方へ突出するフランジ2Fを形成している。
本発明は、下面に開口部2Aを有する不透光性の本体2の前記開口部2Aに対応して発光部6が取り付けられ、発光部6の出射光が道路方向に配光される照明器具において、発光部6から道路方向に配光される出射光のうち、グレア抑制として、発光部6の鉛直方向に対して所定角度θ1以上の出射光が開口部2Aの周縁で遮られる位置に、発光部6が本体2に取り付けられた構成である。
発光部6は、LED素子7が放射する光を所定の配光にて出射する部分であり、実施例では、LED素子7と、LED素子7ごとに所定の配光となる出射光を形成するレンズ形態の配光部82を有する配光ユニット8によって構成している。
As shown in FIGS. 1, 5, and 17, the main body 2 has a flange 2 </ b> F that protrudes downward so as to go around the peripheral edge 2 </ b> A <b> 1 of the opening 2 </ b> A of the main body 2.
In the present invention, a light emitting unit 6 is attached corresponding to the opening 2A of the non-transparent main body 2 having an opening 2A on the lower surface, and the light emitted from the light emitting unit 6 is distributed in the road direction. In the light emitted from the light emitting unit 6 in the road direction, as the glare suppression, the emitted light having a predetermined angle θ1 or more with respect to the vertical direction of the light emitting unit 6 is blocked at the periphery of the opening 2A. The light emitting unit 6 is attached to the main body 2.
The light emitting unit 6 is a part that emits light emitted from the LED element 7 with a predetermined light distribution. In the embodiment, the light emitting unit 6 forms emitted light that has a predetermined light distribution for each LED element 7. The light distribution unit 8 includes a lens-shaped light distribution unit 82.

この具体的実施例として、前記のように、路面から1.5mの高さにある人(歩行者)の目線の水平方向に対する所定の仰角θ4の出射光を遮るために、この仰角θ4を5°未満とし、グレア抑制の範囲である前記所定角度θ1を規定の85°以上とする場合について記載する。   As a specific example, as described above, the elevation angle θ4 is set to 5 in order to block the emitted light having a predetermined elevation angle θ4 with respect to the horizontal direction of the line of sight of a person (pedestrian) at a height of 1.5 m from the road surface. Described below is a case where the predetermined angle θ1, which is a range of glare suppression, is set to 85 ° or more as specified.

このため、下面に開口部2Aを有する不透光性の本体2の開口部2Aに対応して発光部6が取り付けられ、発光部6の出射光が道路方向に配光される照明器具1において、図17に示すように、発光部6からの出射光の出射範囲は、発光部6の中央における鉛直方向VTに対する角度(鉛直角)θ2=90°であり、その中で、グレアを抑制する範囲は角度θ4=5°未満である。この場合、発光部6から道路方向に配光される出射光のうち、発光部6の鉛直方向VTに対する角度(鉛直角)でθ1=85°以上の出射光が、開口部2Aの周縁下端であるフランジ2Fの下端で遮られる位置に、発光部6が本体2に取り付けられる構成としている。   For this reason, in the lighting fixture 1 in which the light emission part 6 is attached corresponding to the opening part 2A of the translucent main body 2 which has the opening part 2A in the lower surface, and the emitted light of the light emission part 6 is distributed in the road direction As shown in FIG. 17, the emission range of the emitted light from the light emitting unit 6 is an angle (vertical angle) θ2 = 90 ° with respect to the vertical direction VT at the center of the light emitting unit 6, and suppresses glare therein. The range is less than the angle θ4 = 5 °. In this case, out of the emitted light distributed from the light emitting unit 6 in the road direction, the emitted light having an angle (vertical angle) of θ1 = 85 ° or more with respect to the vertical direction VT of the light emitting unit 6 is at the lower end of the periphery of the opening 2A. The light emitting unit 6 is attached to the main body 2 at a position blocked by the lower end of a certain flange 2F.

発光部6はLED基板5に取り付けたLED素子7によって形成され、発光部6からの出射光は、LED素子7の発光に基づきLED素子7ごとに形成した配光特性部83Aから発せられ、透光性カバー3を透過して図15に示すように、LED照明器具1の前後方向軸に対して道路方向である左右方向に長い配光特性を有する。   The light emitting unit 6 is formed by the LED element 7 attached to the LED substrate 5, and the light emitted from the light emitting unit 6 is emitted from the light distribution characteristic unit 83 </ b> A formed for each LED element 7 based on the light emission of the LED element 7. As shown in FIG. 15 through the light cover 3, the LED lighting device 1 has a light distribution characteristic that is long in the left-right direction, which is the road direction, with respect to the front-rear direction axis.

これによって、1個の照明器具1から道路方向である左右方向に向けて、角度θ3=170°の範囲で出射光が発せられ、照明器具1の左右において角度θ4の範囲でグレアが抑制される。   As a result, emitted light is emitted in the range of angle θ3 = 170 ° from one lighting fixture 1 in the left-right direction that is the road direction, and glare is suppressed in the range of angle θ4 on the left and right sides of the lighting fixture 1. .

これに係るLED基板5と配光ユニット8の本体2への配置について、上記のように、LED基板5は、取り付けボス13に上面が当接する状態で4隅の孔5Pを通してネジ12で取り付けボス13に取り付けられ、配光ユニット8は、その板状部81がLED基板5の下側面に重ね合わせ状態で以って、LED基板5を貫通して他の取り付けボス13Bにネジ9で取り付けられる。この状態で、発光部6からの出射光の出射範囲を限定する部分となる配光特性部83Aの基部と板状部81との交点BTが、フランジ2Fよりも下方へ突出しない状態となり、LED基板5と配光ユニット8が、開口部2Aに沿って内部空間4に配置される状態となる。   Regarding the arrangement of the LED substrate 5 and the light distribution unit 8 on the main body 2 according to this, as described above, the LED substrate 5 is attached to the mounting boss 13 with the screws 12 through the holes 5P at the four corners in a state where the upper surface is in contact with the mounting boss 13. The light distribution unit 8 is attached to the other mounting boss 13 </ b> B with a screw 9 through the LED board 5 with the plate-like portion 81 being superimposed on the lower surface of the LED board 5. . In this state, the intersection BT between the base portion of the light distribution characteristic portion 83A and the plate-like portion 81, which is a portion that limits the emission range of the emitted light from the light emitting portion 6, does not protrude downward from the flange 2F, and the LED The board | substrate 5 and the light distribution unit 8 will be in the state arrange | positioned in the internal space 4 along 2 A of opening parts.

図示の形態は、複数のLED素子7が所定間隔を存して前後方向に直線的に一列に配置されたものが左右2列配置の構成であるが、これに限定されない。
例えば、前後方向に長いLED基板5の左右間の中央を前後方向に延びる軸線上に、複数のLED素子7が所定間隔を存して前後方向に直線的に一列のみに配置されたものとし、この各LED素子7に対応する配光部8または配光特性部83Aを板状部81に形成した配光ユニット8をLED基板5の下側面に配置し、発光部6の中央における鉛直方向VTに対する所定角度(鉛直角でθ1=85°等)以上の出射光が、開口部2Aの周縁下端で遮られる位置に、発光部6が本体2に取り付けられる構成とするものでもよい。
更にLED素子7を3列構成とし、上記同様の構成とするものでもよい。
The illustrated form is a configuration in which a plurality of LED elements 7 are linearly arranged in a line in the front-rear direction with a predetermined interval, but the arrangement is not limited to this.
For example, it is assumed that a plurality of LED elements 7 are linearly arranged in a single line in the front-rear direction at a predetermined interval on an axis extending in the front-rear direction at the center between the left and right of the LED substrate 5 that is long in the front-rear direction, A light distribution unit 8 in which a light distribution portion 8 or a light distribution characteristic portion 83A corresponding to each LED element 7 is formed on a plate-like portion 81 is disposed on the lower side surface of the LED substrate 5, and a vertical direction VT at the center of the light emitting portion 6 is provided. The light-emitting part 6 may be configured to be attached to the main body 2 at a position where the emitted light with a predetermined angle (vertical angle θ1 = 85 ° or the like) or more is blocked by the lower end of the periphery of the opening 2A.
Further, the LED elements 7 may have a three-row configuration and the same configuration as described above.

上記のように、本発明によって、発光部6から開口部の左右の周縁部を通る出射光のうち、鉛直角で85°以上の範囲が、開口部2Aの左右の周縁部によって制限されるため、この角度未満の範囲では路面照射が良好となり、特別なグレア抑制部材を設ける必要がなくグレア抑制が良好となる。また、発光部6の取り付けも安定したものとなる。   As described above, according to the present invention, the range of 85 ° or more in vertical angle among the emitted light passing from the light emitting portion 6 to the left and right peripheral portions of the opening is limited by the left and right peripheral portions of the opening 2A. When the angle is less than this angle, the road surface irradiation is good, and it is not necessary to provide a special glare suppressing member, and the glare suppression is good. Moreover, the attachment of the light emitting unit 6 is also stable.

また本発明によって、上記のようなグレア抑制と共に、LED素子7の発光に伴い発生する熱は、LED基板5から熱伝導リブ11を通して本体2から放熱されるルートによって放熱される。また、LED基板5の上側に熱伝導リブ11に沿って形成される前後方向の空気通路によって、内部空間4の空気は流動し、LED素子7の発光に伴い発生する熱及び制御部14の発する熱が本体2から放熱される。   Further, according to the present invention, together with the above-described glare suppression, the heat generated due to the light emission of the LED element 7 is dissipated by the route radiated from the main body 2 through the heat conducting rib 11 from the LED substrate 5. Also, the air in the internal space 4 flows by the air passage in the front-rear direction formed along the heat conducting rib 11 on the upper side of the LED substrate 5, and the heat generated by the light emission of the LED element 7 and the control unit 14 emit. Heat is dissipated from the main body 2.

本発明は、発明の範囲内における種々の変更が可能であり、LED照明器具1の形態も上記に限定されることなく、種々の形態のLED照明器具1に適用可能である。
このため、上記では、グレアを抑制する範囲が、発光部6の鉛直方向VTに対する角度(鉛直角)でθ1=85°以上の範囲としたが、規定が80°以上であれば、それに合致するように、上記同様の構成とする。
The present invention can be variously modified within the scope of the invention, and the form of the LED lighting apparatus 1 is not limited to the above, and can be applied to various forms of the LED lighting apparatus 1.
For this reason, in the above, the range in which glare is suppressed is set to a range of θ1 = 85 ° or more in terms of the angle (vertical angle) with respect to the vertical direction VT of the light emitting unit 6. Thus, it is set as the same structure as the above.

上記図示の実施例では、配光ユニット8を分離配光ユニット8P、8Qで構成したが、これに替わって、例えば配光ユニット8を分離配光ユニット8Pのみの1枚とする場合は、その分離配光ユニット8Pは、一列配置の3個の取り付けボス13Bの中間のものにネジ9で取り付けることにより、上記同様の構成及び作用が達成できる。   In the embodiment shown in the figure, the light distribution unit 8 is composed of the separate light distribution units 8P and 8Q. Instead, for example, when the light distribution unit 8 is only one of the separate light distribution units 8P, The separation light distribution unit 8P can achieve the same configuration and operation as described above by being attached to the middle one of the three attachment bosses 13B arranged in a row with the screw 9.

また、配光ユニット8を1枚とする場合、前後方向に長いLED基板5の左右間の中央を前後方向に延びる軸線上に、複数のLED素子7が所定間隔を存して前後方向に直線的に一列のみに配置されたものとし、この各LED素子7に対応する配光部8または配光特性部83Aを板状部81に形成した配光ユニット8をLED基板5の下側面に配置し、発光部6の中央における鉛直方向VTに対する所定角度(鉛直角でθ1=85°等)以上の範囲の出射光が、開口部2Aの周縁下端で遮られる位置に、発光部6が本体2に取り付けられる構成とすることもできる。   When the light distribution unit 8 is a single sheet, a plurality of LED elements 7 are linearly arranged in the front-rear direction with a predetermined interval on the axis extending in the front-rear direction at the center between the left and right of the LED board 5 that is long in the front-rear direction. The light distribution unit 8 in which the light distribution portion 8 or the light distribution characteristic portion 83A corresponding to each LED element 7 is formed on the plate-shaped portion 81 is disposed on the lower surface of the LED substrate 5. Then, the light emitting unit 6 is located at a position where the emitted light in the range of a predetermined angle (vertical angle θ1 = 85 ° or the like) or more with respect to the vertical direction VT at the center of the light emitting unit 6 is blocked by the lower end of the periphery of the opening 2A. It can also be set as the structure attached to.

実施形態では透光性カバー3を備えるが、本発明は、透光性カバー3を設けずに、配光ユニット8が
透光性カバー3の役目を兼用するように、配光部82を一体形成する板状部81の平面積を広くして、
配光ユニット8が本体2の開口部2Aの周縁を巡るフランジ2Fの内側において、開口部2Aの全体を覆う大きさに形成する形態でも、同様の作用効果を奏することができる。
In the embodiment, the translucent cover 3 is provided. However, in the present invention, the light distribution unit 82 is integrated so that the light distribution unit 8 also serves as the translucent cover 3 without providing the translucent cover 3. Widen the plane area of the plate-like part 81 to be formed,
A similar effect can be obtained even when the light distribution unit 8 is formed in a size that covers the entire opening 2A inside the flange 2F around the periphery of the opening 2A of the main body 2.

本発明の照明器具1は、図18及び図19に示すように、制御部14を絶縁シート110で覆うことにより、制御部14が本体2及び保護カバー18との接触を避け、更に照明器具1の点検等を行う作業者への感電防止等を行う構成である。図18は図1において制御部14を絶縁シートで覆った状態を示す照明器具の分解斜視図であり、図1と同じ構成であるため一部の符号を省略している。また、図19は図2において制御部14を絶縁シートで覆った状態を示す照明器具の縦断側面図であり、図2と同じ構成であるため一部の符号を省略している。   As shown in FIGS. 18 and 19, the lighting device 1 of the present invention covers the control unit 14 with an insulating sheet 110 so that the control unit 14 avoids contact with the main body 2 and the protective cover 18, and further the lighting device 1. It is the structure which performs the electric shock prevention etc. to the operator who performs inspection etc. of this. FIG. 18 is an exploded perspective view of a lighting fixture showing a state in which the control unit 14 is covered with an insulating sheet in FIG. 1 and has the same configuration as FIG. FIG. 19 is a longitudinal side view of the lighting fixture showing a state in which the control unit 14 is covered with an insulating sheet in FIG. 2, and a part of the reference numerals is omitted because it has the same configuration as FIG. 2.

絶縁シート110は、図18に示すように、上辺111と下辺112とこれら両辺を連結する連結辺113を一体形成した略コ字状をなす電気絶縁性の合成樹脂製シートである。実施例の絶縁シート110は、厚さが略0.19mmのポリエステル製で構成し、上辺111と下辺112は、制御部14全体を覆う平面積を有する大きさである。   As shown in FIG. 18, the insulating sheet 110 is an electrically insulating synthetic resin sheet having a substantially U shape integrally formed with an upper side 111, a lower side 112, and a connecting side 113 that connects both sides. The insulating sheet 110 of the embodiment is made of polyester having a thickness of approximately 0.19 mm, and the upper side 111 and the lower side 112 have a size that has a flat area covering the entire control unit 14.

絶縁シート110は、上辺111の四隅部分にそれぞれ4個の取り付けボス16、16Bが入り込む切欠き114を形成している。このため、連結辺113が制御基板15の外側位置において上辺111と下辺112との間に制御部14が位置するように絶縁シート110を組み合わせ、且つ四か所の切欠き114がそれぞれ4個の取り付けボス16、16Bの内側に一致する状態に、絶縁シート110を本体2の後部空間4Bに配置する。
これによって、図18及び図19に示すように、絶縁シート110は取り付けボス16、16Bによって位置決めされ、上辺111と下辺112の間に制御部14が配置され、制御部14の全体が絶縁シート110で覆われる状態となる。
The insulating sheet 110 has notches 114 into which the four mounting bosses 16 and 16B are respectively inserted at the four corners of the upper side 111. For this reason, the insulating sheet 110 is combined so that the connecting side 113 is positioned between the upper side 111 and the lower side 112 at the outer position of the control board 15, and the four notches 114 each have four notches 114. The insulating sheet 110 is disposed in the rear space 4B of the main body 2 so as to coincide with the inside of the mounting bosses 16 and 16B.
As a result, as shown in FIGS. 18 and 19, the insulating sheet 110 is positioned by the mounting bosses 16, 16 </ b> B, the control unit 14 is disposed between the upper side 111 and the lower side 112, and the entire control unit 14 is entirely insulated sheet 110. It becomes a state covered with.

1 照明器具
1P 第1空気通路
1Q 第2空気通路
2 本体
2A 本体の開口部
2F フランジ
3 透光性カバー
4 内部空間
4A 前部空間
4B 後部空間
5 LED基板
6 発光部
7 LED素子
8 配光ユニット
10 取り付け部
11 熱伝導リブ
14 制御部
15 制御基板
110 絶縁シート
DESCRIPTION OF SYMBOLS 1 Lighting fixture 1P 1st air path 1Q 2nd air path 2 Main body 2A Opening part of main body 2F Flange 3 Translucent cover 4 Internal space 4A Front space 4B Rear space 5 LED board 6 Light emission part 7 LED element 8 Light distribution unit DESCRIPTION OF SYMBOLS 10 Attaching part 11 Thermal conduction rib 14 Control part 15 Control board 110 Insulation sheet

Claims (3)

不透光性の本体の下面側の周縁部で囲まれた領域にLED素子が放射する光を所定の配光にて出射する発光部を備え、前記発光部の出射光が道路方向に配光される照明器具において、
前記発光部から道路方向に配光される出射光のうち、グレア抑制として、前記発光部の鉛直方向に対して所定角度以上の出射光が前記周縁部で遮られる位置に、前記発光部が前記本体に配置された、
ことを特徴とする照明器具。
A light emitting part that emits light emitted from the LED element with a predetermined light distribution is provided in a region surrounded by a peripheral edge on the lower surface side of the light-impermeable main body, and light emitted from the light emitting part is distributed in the road direction In the lighting equipment
Out of the emitted light distributed in the road direction from the light emitting unit, as the glare suppression, the light emitting unit is located at a position where the emitted light having a predetermined angle or more with respect to the vertical direction of the light emitting unit is blocked by the peripheral part. Placed in the body,
A lighting apparatus characterized by that.
前記発光部は、LED基板の下側面にLED素子が配置され、前記LED素子を覆うように前記LED基板に組み合わされ前記LED素子が放射する光を所定の配光にて出射する配光ユニットを備え、
前記配光ユニットは前記LED素子ごとに所定配光の出射光を形成する配光特性部を備え、
前記発光部が前記領域に配置された状態で、前記配光特性部と前記開口部の周縁下端の関係が、前記所定角度以上の出射光が遮られる関係である、
ことを特徴とする請求項1に記載の照明器具。
The light emitting unit includes a light distribution unit in which an LED element is disposed on a lower surface of the LED substrate, and is combined with the LED substrate so as to cover the LED element, and emits light emitted from the LED element with a predetermined light distribution. Prepared,
The light distribution unit includes a light distribution characteristic unit that forms emission light of a predetermined light distribution for each LED element,
In a state where the light emitting unit is arranged in the region, the relationship between the light distribution characteristic unit and the lower end of the periphery of the opening is a relationship in which emitted light having a predetermined angle or more is blocked.
The lighting fixture according to claim 1.
前記本体は、上壁と前記上壁から下降する周囲壁を有し、前記周囲壁で囲まれた下側に開口する開口部を有する熱良導材で構成され、
前記発光部は、前記本体に取り付けられるLED基板と、前記LED基板の下側面に前後方向の直線状に配置される複数のLED素子を備え、
前記LED基板が取り付けられた状態で、前記所定角度以上の出射光が遮られる関係である、
ことを特徴とする請求項1または請求項2に記載の照明器具。
The main body has an upper wall and a surrounding wall that descends from the upper wall, and is composed of a heat conducting material having an opening that opens to the lower side surrounded by the surrounding wall,
The light emitting unit includes an LED substrate attached to the main body, and a plurality of LED elements arranged in a straight line in the front-rear direction on the lower surface of the LED substrate,
In a state where the LED substrate is attached, the emitted light of the predetermined angle or more is blocked.
The lighting fixture according to claim 1 or claim 2, wherein
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