JP5624642B2 - LED lighting device - Google Patents
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- JP5624642B2 JP5624642B2 JP2013079383A JP2013079383A JP5624642B2 JP 5624642 B2 JP5624642 B2 JP 5624642B2 JP 2013079383 A JP2013079383 A JP 2013079383A JP 2013079383 A JP2013079383 A JP 2013079383A JP 5624642 B2 JP5624642 B2 JP 5624642B2
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- 230000003247 decreasing effect Effects 0.000 description 2
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/06—Optical design with parabolic curvature
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- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
本発明は、LED照明装置に関し、特に駐車場等の屋外で使用するLED照明装置に関するものである。 The present invention relates to an LED lighting device, and more particularly to an LED lighting device used outdoors such as a parking lot.
近年、環境意識の高まりから、省電力化に優れたLED素子を光源に使用したLED照明装置が盛んに用いられるようになってきた。特に最近は、駐車場灯、道路灯、高天井灯などに使用されている水銀灯等の高輝度放電ランプ(HIDランプ)の代替としても使用できるLED照明装置が求められている。しかしながら、LEDは指向性が強いため、高輝度なLED照明装置を作成すると、被照射面の照度むらの大きい照明装置となり、安全性や防犯のために定められた所定の照度が確保できないという問題がある。 2. Description of the Related Art In recent years, with increasing environmental awareness, LED lighting devices using LED elements with excellent power savings as light sources have been actively used. In particular, recently, there has been a demand for an LED lighting device that can be used as an alternative to a high-intensity discharge lamp (HID lamp) such as a mercury lamp used in parking lot lights, road lights, high ceiling lights, and the like. However, since LEDs have strong directivity, creating a high-brightness LED lighting device results in a lighting device with large illuminance unevenness on the irradiated surface, and the predetermined illuminance determined for safety and crime prevention cannot be secured. There is.
このような被照射面の照度むらを解消するため、例えば特許文献1では、発光面を基板に対して所定角度傾けて設けた複数の反射形LEDユニットと、この反射形LEDユニットに対応して配置した凹型反射板を組み合わせ、各反射形LEDユニットの基板の直角軸に対する傾角を適宜調整することにより任意の合成配光特性を得るようにしたLED照明装置が提案されている。 In order to eliminate such illuminance unevenness of the irradiated surface, for example, in Patent Document 1, a plurality of reflective LED units provided with the light emitting surface inclined at a predetermined angle with respect to the substrate, and the reflective LED unit There has been proposed an LED illuminating apparatus that combines an arranged concave reflector and appropriately adjusts an inclination angle of the substrate of each reflective LED unit with respect to a right angle axis to obtain an arbitrary combined light distribution characteristic.
また特許文献2では、特許文献1と同じように発光面を基板に対して所定角度傾けて設けた複数の反射形LEDユニットと、この反射形LEDユニットに対応して配置した凹型反射板を組み合わせ、各反射形LEDユニットに供給される電流を適宜調整することにより任意の合成配光特性を得るようにしたLED照明装置が提案されている。 Further, in Patent Document 2, as in Patent Document 1, a plurality of reflective LED units each having a light emitting surface inclined at a predetermined angle with respect to the substrate are combined with a concave reflector disposed corresponding to the reflective LED unit. There has been proposed an LED lighting device that can obtain an arbitrary combined light distribution characteristic by appropriately adjusting the current supplied to each reflective LED unit.
しかしながら、特許文献1の発明によれば、全反射形のLED素子を使用しているため配光角が狭く、均一な被照射面の照度を得るためには多数のLED素子を組み込んだ多数のLEDユニットを密集して配列し、隣り合う各LEDユニットの角度を少しずつ変える必要がある。そのため、各LEDユニットの角度調整作業やLEDユニット組み立て作業が面倒であり、生産性も劣るという問題がある。また、特許文献2の発明によれば、前記した問題に加えて、各反射形LEDユニットに供給する電流の制御回路等が必要となり、制御系の設計が複雑化し、部品点数が増えるなどして制作コストも高くなる等の問題がある。 However, according to the invention of Patent Document 1, since a total reflection type LED element is used, the light distribution angle is narrow, and in order to obtain a uniform illumination intensity on the irradiated surface, a large number of LED elements are incorporated. It is necessary to arrange LED units densely and change the angle of each adjacent LED unit little by little. Therefore, there is a problem that the angle adjustment work and the LED unit assembly work of each LED unit are troublesome and the productivity is inferior. Further, according to the invention of Patent Document 2, in addition to the above-described problems, a control circuit for the current supplied to each reflective LED unit is required, the design of the control system becomes complicated, and the number of parts increases. There are problems such as high production costs.
本発明は、上記問題点に鑑みなされたもので、LED照射光の配光角をほぼ一定にして照射角を簡単な構成で調整することができ、これにより被照射面を所定照度で均一に照射できるLED照明装置を提供することを目的とする。
また本発明は、LED照射角を調整する反射部材を含むLEDユニット部材の量産化を低コストで実現でき、反射部材の組立性も容易で、製造コストの低減化を図ったLED照明装置を提供することを目的とする。
The present invention has been made in view of the above problems, and the illumination angle can be adjusted with a simple configuration by making the light distribution angle of the LED illumination light substantially constant. It aims at providing the LED illuminating device which can be irradiated.
In addition, the present invention provides an LED lighting device that can realize mass production of LED unit members including a reflecting member that adjusts the LED irradiation angle at low cost, that is easy to assemble the reflecting member, and that reduces manufacturing costs. The purpose is to do.
上記課題を解決するため、請求項1に係る発明にあっては、光源となるLEDユニット部材と、それを点灯させる電源装置とが取付けられる本体と、
前記本体に固定され、前記LEDユニット部材と前記電源装置とを収納し、前記LEDユニット部材の光照射方向を覆うボックス形の透光性カバーと、
前記透光性カバーの光照射方向の内周面に沿って複数配列されたLEDユニット部材と、を備え、
前記LEDユニット部材は、複数のLED素子を実装したLED基板と、該LED基板を支持し前記本体に固定される基板支持体と、前記LED基板のLED素子に対応して該LED素子が露出する放物曲線の凹湾曲状の複数の反射開口部が形成された反射部材と、を有しており、かつ前記反射開口部の少なくとも1つは、前記LED素子の主光軸に対して傾いた凹湾曲状反射面となっており、
前記LEDユニット部材をLEDユニット支持板に配置し、該LEDユニット支持板を傾けて前記反射部材からのLED照射角を調整していることを特徴とする。
To solve the above problems, in the invention according to claim 1, and the LED unit member serving as a light source, a main body and a power supply device for light it is attached,
A box-shaped translucent cover fixed to the main body, housing the LED unit member and the power supply device, and covering the light irradiation direction of the LED unit member;
A plurality of LED unit members arranged along the inner peripheral surface in the light irradiation direction of the translucent cover ,
The LED unit member includes an LED substrate on which a plurality of LED elements are mounted, a substrate support that supports the LED substrate and is fixed to the main body, and the LED elements are exposed corresponding to the LED elements of the LED substrate. And a reflective member having a plurality of concave openings having a parabolic curve, and at least one of the reflective openings is inclined with respect to the main optical axis of the LED element. It is a concave curved reflecting surface ,
The LED unit member is disposed on an LED unit support plate, and the LED unit support plate is tilted to adjust the LED irradiation angle from the reflection member .
また請求項2に係る発明にあっては、前記LED素子の主光軸に対する前記反射開口部の傾角が0度〜20度であることを特徴とする。 The invention according to claim 2 is characterized in that the angle of inclination of the reflective opening with respect to the main optical axis of the LED element is 0 to 20 degrees.
また請求項3に係る発明にあっては、前記反射部材は、前記傾角が異なる複数の反射開口部が配列されていることを特徴とする。 In the invention according to claim 3, the reflective member is characterized in that a plurality of reflective openings having different inclination angles are arranged.
また請求項4に係る発明にあっては、前記反射部材は、中央部に配列された反射開口部の傾角が略0度であり、該中央部の反射開口部に中心にして前記傾角が異なる複数の反射開口部を対称に配列したことを特徴とする。 In the invention according to claim 4, the reflection member has an inclination angle of the reflection openings arranged in the center portion of approximately 0 degrees, and the inclination angle differs from the reflection opening portion in the center portion. A plurality of reflective openings are arranged symmetrically.
また請求項5に係る発明にあっては、前記反射部材は一体成形により構成されていることを特徴とする。 The invention according to claim 5 is characterized in that the reflecting member is formed by integral molding.
また請求項6に係る発明にあっては、前記反射開口部の配列を異にした複数種の前記LEDユニット部材を、前記本体の中心面に対して対称となるように配置したことを特徴とする。 The invention according to claim 6 is characterized in that a plurality of types of the LED unit members having different arrangements of the reflection openings are arranged so as to be symmetric with respect to the center plane of the main body. To do.
また請求項7に係る発明にあっては、前記本体に固定され、前記LEDユニット部材の配線部分だけを覆うためのインナーカバーを備えていることを特徴とする。 The invention according to claim 7 is characterized in that an inner cover is provided which is fixed to the main body and covers only the wiring portion of the LED unit member.
また請求項8に係る発明にあっては、前記LED照明装置は駐車場灯であり、被照射面となる道路10ルクス以上、駐車エリア2ルクス以上の照度基準を満たすように前記LEDユニット部材を前記本体に配置したことを特徴とする。 Moreover, in the invention which concerns on Claim 8, the said LED illuminating device is a parking lot light, The said LED unit member is satisfy | filled so that the illumination intensity reference | standard of the road 10 lux or more used as a to-be-irradiated surface may be more than 2 lux. It is arranged on the main body.
請求項1〜請求項8の発明に係るLED照明装置によれば、LED照射光の配光角をほぼ一定にして照射角を簡単な構成で調整することができ、これにより被照射面を所定照度で均一に照射できる。また、特に請求項5〜請求項7に係る本発明によれば、LED照射光の照射角を調整する反射部材を含むLEDユニット部材の量産化を低コストで実現でき、反射部材の組立性も容易で、製造コストの低減化を図ることができる。さらに、請求項1〜請求項8に係る発明によれば、反射部材の反射開口部のLED素子の主光軸に対する傾きを変えるだけで、設置場所に適応したLED照明装置の設計、製造が可能となる、等の効果が得られる。 According to the LED illumination device of the first to eighth aspects of the present invention, the illumination angle can be adjusted with a simple configuration with the light distribution angle of the LED illumination light being substantially constant, and thereby the surface to be illuminated is predetermined. Uniform illumination with illuminance. Further, according to the present invention, particularly according to claims 5 to 7, the mass production of LED unit member including a reflecting member for adjusting the illumination angle of the LED illumination light can be realized at low cost, also assembling of the reflection member It is easy and the manufacturing cost can be reduced. Furthermore, according to the invention which concerns on Claims 1-8, it is possible to design and manufacture an LED lighting device adapted to the installation location by simply changing the inclination of the reflective opening of the reflecting member with respect to the main optical axis of the LED element. The following effects can be obtained.
以下、本発明に係るLED照明装置を駐車場灯に適用した場合の実施形態を説明する。図1は本発明に係るLED照明装置(駐車場灯)の全体斜視図、図2はその組立分解図である。 Hereinafter, the embodiment at the time of applying the LED lighting device concerning the present invention to a parking lot light is described. FIG. 1 is an overall perspective view of an LED lighting device (parking lot light) according to the present invention, and FIG. 2 is an exploded view thereof.
図1及び図2に示すように、本発明のLED照明装置100は、上面カバーとなる本体1と、その本体1の下部に固定された透光性カバー2と、本体1と透光性カバー2の内部に収納されるLEDユニット4と、このLEDユニット4の下端部(図示しない配線部分)を覆うためのインナーカバー3をと有している。本体1の内部には電源装置5と点灯制御装置6が設けられている。透光性カバー2は本体1にネジ止め等により固定され、本体1内部に固定されたLEDユニット4とインナーカバー3を覆っている。なお、本体1は金属や合成樹脂を使用して概略半円盤形状に成形され、透光性カバー2は透光性樹脂によりこの本体1に対応した開口形状を有するボックス形に成形されている。 As shown in FIGS. 1 and 2, the LED lighting device 100 of the present invention includes a main body 1 serving as a top cover, a translucent cover 2 fixed to a lower portion of the main body 1, and the main body 1 and the translucent cover. 2 and an inner cover 3 for covering a lower end portion (not shown) of the LED unit 4. A power supply device 5 and a lighting control device 6 are provided inside the main body 1. The translucent cover 2 is fixed to the main body 1 by screws or the like, and covers the LED unit 4 and the inner cover 3 fixed inside the main body 1. The main body 1 is formed into a substantially semi-disc shape using a metal or a synthetic resin, and the translucent cover 2 is formed into a box shape having an opening shape corresponding to the main body 1 by the translucent resin.
前記LEDユニット4は、本体1の内周面に沿って配設される複数のLEDユニット部材41〜45から構成され、本体1内部の略中央部には別のLEDユニット部材46が配設されている(ここでは便宜上、LEDユニット部材41〜45をLEDユニット4としているが、LEDユニット部材46をLEDユニット4から除外するものではない)。なお、LEDユニット部材41が本体1の正面位置に配設されており、符号は省略しているが、このLEDユニット部材41を中心面としてLEDユニット部材41〜45と同じ組み合わせが本体1の内周面方向に対称に配置(図2の奥方向にも配置)されている。 The LED unit 4 includes a plurality of LED unit members 41 to 45 disposed along the inner peripheral surface of the main body 1, and another LED unit member 46 is disposed at a substantially central portion inside the main body 1. (For convenience, the LED unit members 41 to 45 are LED units 4 here, but the LED unit member 46 is not excluded from the LED units 4). The LED unit member 41 is disposed at the front position of the main body 1, and the reference numerals are omitted. However, the LED unit member 41 has the same combination as the LED unit members 41 to 45 with the LED unit member 41 as a central plane. They are arranged symmetrically in the circumferential direction (also arranged in the back direction in FIG. 2).
これらLEDユニット部材41〜46の基本的な部品構成を、LEDユニット部材43を例にとって説明する。図3に示すように、LEDユニット部材43は、複数のLED素子4aが実装されたLED基板4bと、このLED基板4bを支持する基板支持体4cと、LED基板4bのLED素子4aに対応して複数の反射開口部4dが形成された反射部材4eから構成されている。この反射開口部4dは、LED素子4aの照射光を配光するものであり、LED基板4bに実装されたLED素子4aの発光部が露出するような凹状湾曲面となっている。反射部材4eはLED基板4aを覆うように配置されており、LED基板4aとともに基板支持体4cにネジ止め等により密接に固定され、一体化されている。なお、LED基板4bには配線コネクタ4fが設けられている。 The basic component configuration of the LED unit members 41 to 46 will be described by taking the LED unit member 43 as an example. As shown in FIG. 3, the LED unit member 43 corresponds to the LED substrate 4b on which the plurality of LED elements 4a are mounted, the substrate support 4c that supports the LED substrate 4b, and the LED elements 4a of the LED substrate 4b. The reflecting member 4e is formed with a plurality of reflecting openings 4d. This reflection opening 4d distributes the irradiation light of the LED element 4a, and has a concave curved surface that exposes the light emitting part of the LED element 4a mounted on the LED substrate 4b. The reflection member 4e is disposed so as to cover the LED substrate 4a, and is closely fixed to the substrate support 4c together with the LED substrate 4a by screwing or the like and integrated. The LED substrate 4b is provided with a wiring connector 4f.
反射部材4eは高反射率の添加材が配合された合成樹脂で一体成形、または、耐熱性の良好な合成樹脂で一体成形された後、アルミ蒸着メッキなどのメッキ加工を施し反射率を高められる。また、基板支持体4cは熱伝導率の高いアルミニウム等で造られており、平板面の下端部を略「く」字状に屈曲して本体1との固定部4gが形成されている。 The reflective member 4e can be integrally molded with a synthetic resin containing a highly reflective additive or integrally molded with a synthetic resin having good heat resistance, and then subjected to a plating process such as aluminum vapor deposition to increase the reflectance. . The substrate support 4c is made of aluminum or the like having a high thermal conductivity, and the lower end portion of the flat plate surface is bent into a substantially “<” shape to form a fixing portion 4g with the main body 1.
他のLEDユニット部材41,42及び44〜46も、LED基板4bのLED素子4aの配列及びこれに対応した反射部材4eの反射開口部4dの配列を除いて構成部品は同じである。 The other LED unit members 41, 42, and 44 to 46 have the same components except for the arrangement of the LED elements 4a of the LED substrate 4b and the arrangement of the reflection openings 4d of the reflection members 4e corresponding thereto.
これらLEDユニット部材41〜46は、前述した反射部材4eの反射開口部4dの全部又は一部が、LED素子4aの主光軸(配光曲線で最大光度を示す角度に沿った直線)に対して傾いた放物曲線の凹湾曲状反射面となっている。即ち、反射開口部4dは、下端部に小径開口部が形成され、上端部に大径開口部が形成された拡口形の湾曲形状となっており、LED素子4aの発光部が小径開口部から露出するように配置されている。 In these LED unit members 41 to 46, all or a part of the reflection opening 4d of the reflection member 4e described above is relative to the main optical axis of the LED element 4a (a straight line along an angle indicating the maximum luminous intensity in the light distribution curve). It is a concave curved reflecting surface with a parabolic curve tilted. That is, the reflection opening 4d has a wide-open curved shape in which a small-diameter opening is formed at the lower end and a large-diameter opening is formed at the upper end, and the light-emitting portion of the LED element 4a extends from the small-diameter opening. It is arranged to be exposed.
反射開口部4dをLED素子4aの主光軸に対して傾けて形成する場合、その傾角が0度から20度であれば、LED素子4aの配光角をほぼ一定にしたまま照射角度を変えることができるので、この角度範囲内で照射角度を調整した反射開口部4dを形成することができる。反射開口部4dの傾け方向は任意であり、左右方向ないし上下方向に傾けて被照射面が所定照度以上となるように調整する。その代表例としてLEDユニット部材41について説明する。 When the reflective opening 4d is formed to be inclined with respect to the main optical axis of the LED element 4a, if the inclination angle is 0 to 20 degrees, the irradiation angle is changed while the light distribution angle of the LED element 4a is substantially constant. Therefore, it is possible to form the reflective opening 4d whose irradiation angle is adjusted within this angle range. The tilt direction of the reflection opening 4d is arbitrary, and is adjusted so that the irradiated surface has a predetermined illuminance or more by tilting in the left-right direction or the up-down direction. The LED unit member 41 will be described as a representative example.
図4及び図5に示すように、LEDユニット部材41の反射部材4eは、上部横列と中央部横列に3個の反射開口部41a〜41c及び41d〜41fが形成され、下部横列に2個の反射開口部41g〜41hが形成されている。また図5〜図7に示すように、LED基板4bには、反射開口部41a〜41hに対応した位置に、LED素子41A〜41Hが配置されている。このLED素子41A〜41Hは、LED基板4bの上面に対して主光軸Xが垂直となるように配置されている。 As shown in FIGS. 4 and 5, the reflective member 4e of the LED unit member 41 is formed with three reflective openings 41a to 41c and 41d to 41f in the upper row and the central row, and two in the lower row. Reflective openings 41g to 41h are formed. As shown in FIGS. 5 to 7, LED elements 41 </ b> A to 41 </ b> H are arranged on the LED substrate 4 b at positions corresponding to the reflection openings 41 a to 41 h. The LED elements 41A to 41H are arranged such that the main optical axis X is perpendicular to the upper surface of the LED substrate 4b.
下部横列の反射開口部41g,41hは、図6に示すように、一方の反射開口部41gがLED素子41Gの主光軸Xに対して左側に所定角度傾いた放物曲線の凹湾曲面となっており、他方の反射開口部41hがLED素子41Hの主光軸Xに対して右側に所定角度傾いた放物曲線の凹湾曲面となっている。 As shown in FIG. 6, the reflection openings 41g and 41h in the lower row have a parabolic curve curved surface in which one reflection opening 41g is inclined to the left by a predetermined angle with respect to the main optical axis X of the LED element 41G. The other reflection opening 41h is a parabolic concave curved surface inclined at a predetermined angle to the right with respect to the main optical axis X of the LED element 41H.
また、上部横列の反射開口部41a〜41cは、図7に示すように、左側の反射開口部41aがLED素子41Aの主光軸Xに対して左側に所定角度傾いた放物曲線の凹湾曲面となっており、右側の反射開口部41cと中央部の反射開口部41bが、各LED素子41B,41Cの主光軸Xに対して右側に所定角度傾いた放物曲線の凹湾曲面となっている。なお、中央部横列の3個の反射開口部41d〜41fも図5に示すようにLED素子41D〜41Fの主光軸Xに対して左右方向に所定角度傾いた放物曲線の凹湾曲面となっている。 Further, as shown in FIG. 7, the upper row of reflective openings 41a to 41c has a parabolic concave curve in which the left reflective opening 41a is inclined to the left by a predetermined angle with respect to the main optical axis X of the LED element 41A. The right reflective opening 41c and the central reflective opening 41b are parabolic curved curved surfaces that are inclined to the right by a predetermined angle with respect to the main optical axis X of the LED elements 41B and 41C. It has become. In addition, as shown in FIG. 5, the three reflective openings 41d to 41f in the central row also have a parabolic curved concave surface inclined by a predetermined angle in the left-right direction with respect to the main optical axis X of the LED elements 41D to 41F. It has become.
以上はLEDユニット部材41を例にとって説明したが、その他のLEDユニット部材42〜46の反射開口部4dも所定方向に傾けて形成されている。ただし、本体1の中央部に配置されるLEDユニット部材46は、主としてLED照明装置100の底面方向を照射するものであり、照射むらが少ない場合は、反射開口部4dはLED素子4aの主光軸と一致した放物曲腺の凹湾曲面(反射開口部4dの主光軸に対する傾角が0度)とすることができる。 Although the LED unit member 41 has been described above as an example, the reflective opening portions 4d of the other LED unit members 42 to 46 are also formed to be inclined in a predetermined direction. However, the LED unit member 46 disposed in the central portion of the main body 1 mainly irradiates the bottom surface direction of the LED lighting device 100. When there is little irradiation unevenness, the reflective opening 4d is the main light of the LED element 4a. The concave curved surface of the parabola that coincides with the axis (the inclination angle of the reflection opening 4d with respect to the main optical axis is 0 degree) can be obtained.
また、例えばLEDユニット部材43のように、奇数列の反射開口部が形成されている場合、中央列を中心にして左右列の反射開口部の傾きが対称となるようにしてもよい。具体的には、中央縦列の3個の反射開口部4dを傾けずにLED素子4aの主光軸と一致した放物曲線の凹湾曲面(反射開口部4dの主光軸に対する傾角が0度)とし、左右の縦列の3個の反射開口部4dを、一方を主光軸に対して所定角度左側に傾け、他方を右側に傾けるようにすることができる。このようにすれば、ひとつのLEDユニット部材で広範囲のエリアを均一に照射することができる。 For example, when the odd-numbered rows of reflective openings are formed as in the LED unit member 43, the tilts of the left and right rows of reflective openings may be symmetric with respect to the central row. Specifically, the concave curved surface of the parabolic curve that coincides with the main optical axis of the LED element 4a without tilting the three reflection openings 4d in the central column (the inclination angle of the reflection opening 4d with respect to the main optical axis is 0 degree). ), And one of the three reflective openings 4d in the left and right columns can be inclined to the left by a predetermined angle with respect to the main optical axis, and the other can be inclined to the right. If it does in this way, a wide area can be uniformly irradiated with one LED unit member.
これらLEDユニット部材41〜46の各反射開口部4dの傾角は、LED照射装置100を設置する照明エリアが基準以上の照度となるように選択される。ちなみに駐車場灯は、道路10ルクス以上、駐車エリア2ルクス以上の照度基準を満たすようにLEDユニット部材41〜46の各反射開口部4dの数と配列(それに対応したLED基板4bに実装されるLED素子4aの数と配列)を選択し、また各反射開口部4dの傾角を選択する。 The inclination angles of the respective reflective openings 4d of the LED unit members 41 to 46 are selected so that the illumination area in which the LED irradiation device 100 is installed has an illuminance equal to or higher than the reference. Incidentally, the parking lot light is mounted on the LED board 4b corresponding to the number and arrangement of the reflective opening portions 4d of the LED unit members 41 to 46 so as to satisfy the illuminance standard of the road 10 lux or more and the parking area 2 lux or more. The number and arrangement of the LED elements 4a are selected, and the inclination angle of each reflective opening 4d is selected.
LEDユニット部材41〜46の形態は図示したものに限定されるものではなく、光量を増減させるために、LED基板4bに実装されるLED素子4aの数と配列、それに対応した各反射開口部4dの数と配列を選択することができる。すなわち、LEDユニット部材41〜46の数を増減させることなく、個々のLEDユニット部材のLED素子4aの数を増減するだけであるから、設置場所に対応したLED照明装置100の設計が容易となる。 The form of the LED unit members 41 to 46 is not limited to that shown in the figure, and in order to increase or decrease the amount of light, the number and arrangement of the LED elements 4a mounted on the LED substrate 4b, and the corresponding reflective openings 4d. The number and sequence can be selected. That is, since the number of the LED elements 4a of each LED unit member is only increased / decreased without increasing / decreasing the number of LED unit members 41-46, the design of the LED lighting device 100 corresponding to the installation location becomes easy. .
このようなLEDユニット部材41〜45は、図2に示すように、本体1の内面周方向に形成された縦横リブ形状の固定部1aにネジ止め等により固定される。またLEDユニット部材46は、本体1の内面略中央部に形成された縦横リブ形状の固定部1bにネジ止め等により固定される。この中央部のLEDユニット部材46は、所定の角度で下面に向けて設置されている。なお、図示しないが、これら各LEDユニット部材41〜46は、電源装置5と配線コネクタ4fを介して配線により電気的に接続されている。 As shown in FIG. 2, such LED unit members 41 to 45 are fixed to a fixing portion 1 a having a vertical and horizontal rib shape formed in the circumferential direction of the inner surface of the main body 1 by screwing or the like. The LED unit member 46 is fixed to a fixing portion 1b having a vertical and horizontal rib shape formed at a substantially central portion of the inner surface of the main body 1 by screws or the like. The central LED unit member 46 is installed at a predetermined angle toward the lower surface. Although not shown, each of these LED unit members 41 to 46 is electrically connected to the power supply device 5 via a wiring connector 4f by wiring.
インナーカバー3は、本体1の形状と対応した概略半円盤形状であり、合成樹脂を使用して一体成形されている。このインナーカバー3は、図2に示すように、底面部3aから立ち上がる周面部3bの下端縁部に折返部3cが形成されている。また、底面部3aには本体1の内部に固定するための複数の凸状固定部3dが形成され、インナーカバー3は、この固定部3dと対応して本体1内部に設けられた複数の固定ボス1cとネジ止め等により固定されている。 The inner cover 3 has a substantially semi-disc shape corresponding to the shape of the main body 1 and is integrally formed using a synthetic resin. As shown in FIG. 2, the inner cover 3 has a folded portion 3c formed at the lower edge of the peripheral surface portion 3b rising from the bottom surface portion 3a. The bottom surface portion 3a is formed with a plurality of convex fixing portions 3d for fixing inside the main body 1, and the inner cover 3 has a plurality of fixing portions provided inside the main body 1 corresponding to the fixing portions 3d. It is fixed to the boss 1c by screwing or the like.
インナーカバー3の略中央部には、LEDユニット46と対面する傾斜部3eが形成されており、その傾斜部3eには開口部3fが開口されている。LEDユニット46はその開口部3fを通して照射され、図1で示す支柱等の被取付部材7とは反対方向の下面が照射されるようになっている。 An inclined portion 3e facing the LED unit 46 is formed at a substantially central portion of the inner cover 3, and an opening 3f is opened in the inclined portion 3e. The LED unit 46 is irradiated through the opening 3f, and the lower surface in the direction opposite to the attached member 7 such as a column shown in FIG. 1 is irradiated.
インナーカバー3は、本体1の内部に固定された電源装置5と点灯制御装置6を下方から覆うとともに、折返部3cにより各LEDユニット部材41〜46の下部に備えられた配線コネクタ4fと、それに接続された配線を覆っている。インナーカバー3は、図1に示すように、LEDユニット4の下端部を覆っているだけであるから、LEDユニット4からのLED照射を妨げることはない。 The inner cover 3 covers the power supply device 5 and the lighting control device 6 fixed from the inside of the main body 1 from below, and also includes a wiring connector 4f provided at the lower part of each LED unit member 41 to 46 by a folded portion 3c, Covers the connected wiring. As shown in FIG. 1, the inner cover 3 only covers the lower end of the LED unit 4, and therefore does not hinder the LED irradiation from the LED unit 4.
透光性カバー2は、インナーカバー3、LEDユニット4、電源装置5、点灯制御装置6の全体を覆い、上面カバーとなる本体1と共にこれらの収納部品を、風雨、粉塵等の外部環境から保護している。LEDユニット部材41〜45の照射光は、透光性カバー2の周面部を透過して所定の正面方向を照射し、LEDユニット部材46は、透光性カバー2の底面部を透過して所定の底面方向を照射する。透光性カバー2は、例えば底面部を光拡散面とすることもできる。 The translucent cover 2 covers the entire inner cover 3, LED unit 4, power supply device 5, lighting control device 6, and protects these storage components together with the main body 1 serving as a top cover from the external environment such as wind and rain and dust doing. The irradiation light of the LED unit members 41 to 45 is transmitted through the peripheral surface portion of the translucent cover 2 to irradiate a predetermined front direction, and the LED unit member 46 is transmitted through the bottom surface portion of the translucent cover 2 and predetermined. Irradiate the bottom direction. The translucent cover 2 can also have, for example, a bottom surface portion as a light diffusion surface.
なお、本体1の背面部(被取付部材7側)には、図2に示すように自動点滅ユニット8が設けられており、自動点滅ユニット8内に設けたセンサー出力信号に応じて、電源装置5に接続されている点灯制御装置6が供給電力の遮断、供給の制御を行い、LEDユニット4の消灯、点灯が行われる。 Note that an automatic flashing unit 8 is provided on the back surface of the main body 1 (attached member 7 side) as shown in FIG. 2, and a power supply device is provided according to a sensor output signal provided in the automatic flashing unit 8. The lighting control device 6 connected to 5 cuts off the supplied power and controls the supply, and the LED unit 4 is turned off and turned on.
このようなLED照明装置100は、図1に示すように電柱やポール等の被取付部材7に取付アーム8により取り付けられる。この際、照明エリアが所定の照度となるようにLED照明装置100の取り付け位置の高さが調整される。 As shown in FIG. 1, such an LED lighting device 100 is attached to a member 7 to be attached such as a utility pole or a pole by a mounting arm 8. At this time, the height of the mounting position of the LED lighting device 100 is adjusted so that the illumination area has a predetermined illuminance.
本発明のLEDユニット部材41〜46は、反射部材4eを一体成形により製造することができるため、各LEDユニット部材41〜46を安価に量産することが可能となり、しかも、上述したようにLEDユニット部材42〜45を、LEDユニット部材41を中心にして左右対称に本体1に固定するだけであるから、組立性も向上する。 Since the LED unit members 41 to 46 of the present invention can be manufactured by integrally molding the reflecting member 4e, each of the LED unit members 41 to 46 can be mass-produced at low cost, and as described above, the LED unit. Since the members 42 to 45 are simply fixed to the main body 1 symmetrically about the LED unit member 41, the assemblability is also improved.
LEDユニット部材41〜46の反射開口部4dをLED素子4aの主光軸に対して傾けただけでは所定エリアの照度が不足する場合など、必要に応じてLEDユニット部材の全体を傾斜させてもよい。上述の実施形態では、基板支持体4cを傾斜させることによりそれを実現することができる。 Even if the LED unit members 41 to 46 are tilted with respect to the main optical axis of the LED element 4a, the entire LED unit member may be tilted as necessary, such as when the illuminance of a predetermined area is insufficient. Good. In the above-described embodiment, this can be realized by inclining the substrate support 4c.
また、図8に模式的に示すように、1枚のLEDユニット支持板10(前記基板支持体4cを兼ねてもよい)に複数のLEDユニット部材41〜46を配置し(図8では簡略化のため中心となるLEDユニット部材41だけを示している)、そのLEDユニット支持板10を傾斜させることができる。図8(a)は標準的にLEDユニット支持板10にLEDユニット部材41〜45を平面的に配置した場合であり、図8(b)はLEDユニット部材41〜45をLEDユニット支持板10に傾けてa<b<cとなるように配置した例である。また、図8(c)は、図8(a)のLEDユニット部材41〜45を、LEDユニット支持板10を湾曲させてLEDユニット部材41〜45の傾きがa<b<cとなるようにした例である。 Further, as schematically shown in FIG. 8, a plurality of LED unit members 41 to 46 are arranged on one LED unit support plate 10 (which may also serve as the substrate support 4c) (in FIG. 8, simplified). Therefore, only the LED unit member 41 as the center is shown), and the LED unit support plate 10 can be inclined. FIG. 8A shows a case where the LED unit members 41 to 45 are arranged on the LED unit support plate 10 in a standard manner, and FIG. 8B shows the LED unit members 41 to 45 mounted on the LED unit support plate 10. This is an example in which it is tilted so that a <b <c. 8C, the LED unit members 41 to 45 in FIG. 8A are bent so that the LED unit support plate 10 is bent so that the inclination of the LED unit members 41 to 45 is a <b <c. This is an example.
上述した実施形態は本発明の一例を示すものであり、LED照明装置100の全体形状や細部の構成は、使用目的、設置場所等に応じて任意に変更することができる。なお、本発明のLED照明装置は、街路灯等の屋外灯、高天井灯等の屋内灯として使用することができる。 Embodiment mentioned above shows an example of this invention, The whole shape of LED lighting apparatus 100 and a structure of detail can be changed arbitrarily according to a use purpose, an installation place, etc. The LED lighting device of the present invention can be used as an outdoor lamp such as a street lamp and an indoor lamp such as a high ceiling lamp.
1 本体
2 透光性カバー
3 インナーカバー
4 LEDユニット
4a LED素子
4b LED基板
4c 基板支持体
4d 反射開口部
4e 反射部材
41〜46 LEDユニット部材
41a〜41h 反射開口部
41A〜41H LED素子
DESCRIPTION OF SYMBOLS 1 Main body 2 Translucent cover 3 Inner cover 4 LED unit 4a LED element 4b LED board 4c Substrate support body 4d Reflective opening part 4e Reflective member 41-46 LED unit member 41a-41h Reflective opening part 41A-41H LED element
Claims (8)
前記本体に固定され、前記LEDユニット部材と前記電源装置とを収納し、前記LEDユニット部材の光照射方向を覆うボックス形の透光性カバーと、
前記透光性カバーの光照射方向の内周面に沿って複数配列されたLEDユニット部材と、を備え、
前記LEDユニット部材は、複数のLED素子を実装したLED基板と、該LED基板を支持し前記本体に固定される基板支持体と、前記LED基板のLED素子に対応して該LED素子が露出する放物曲線の凹湾曲状の複数の反射開口部が形成された反射部材と、を有しており、かつ前記反射開口部の少なくとも1つは、前記LED素子の主光軸に対して傾いた凹湾曲状反射面となっており、
前記LEDユニット部材をLEDユニット支持板に配置し、該LEDユニット支持板を傾けて前記反射部材からのLED照射角を調整していることを特徴とするLED照明装置。 A main unit to which an LED unit member serving as a light source and a power supply device for lighting the LED unit member are attached;
A box-shaped translucent cover fixed to the main body, housing the LED unit member and the power supply device, and covering the light irradiation direction of the LED unit member;
A plurality of LED unit members arranged along the inner peripheral surface in the light irradiation direction of the translucent cover,
The LED unit member includes an LED substrate on which a plurality of LED elements are mounted, a substrate support that supports the LED substrate and is fixed to the main body, and the LED elements are exposed corresponding to the LED elements of the LED substrate. And a reflective member having a plurality of concave openings having a parabolic curve, and at least one of the reflective openings is inclined with respect to the main optical axis of the LED element. It is a concave curved reflecting surface,
The LED illumination device, wherein the LED unit member is disposed on an LED unit support plate, and the LED unit support plate is inclined to adjust an LED irradiation angle from the reflection member.
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JP2008130393A (en) * | 2006-11-21 | 2008-06-05 | Solar Wind Technologies Ltd | Lighting system, and illumination system |
JP2008159562A (en) * | 2006-11-30 | 2008-07-10 | Mirai Kankyo Kaihatsu Kenkyusho Kk | Lighting device |
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JP2009152169A (en) * | 2007-11-30 | 2009-07-09 | Toshiba Lighting & Technology Corp | Lighting device |
JP2011513931A (en) * | 2008-12-24 | 2011-04-28 | ハンサン エルコムテック カンパニー リミテッド | LIGHT SOURCE MODULE AND LIGHTING DEVICE INCLUDING THE SAME |
JP3158787U (en) * | 2009-11-09 | 2010-04-22 | ツェジャン ジンリ ライティング テクノロジー カンパニー,リミテッド | LED street light reflector |
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JP2012181950A (en) * | 2011-02-28 | 2012-09-20 | Inaba Denki Seisakusho:Kk | Lighting fixture |
Cited By (2)
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US20210318484A1 (en) * | 2020-04-10 | 2021-10-14 | Nichia Corporation | Light emitting device |
US11880016B2 (en) * | 2020-04-10 | 2024-01-23 | Nichia Corporation | Light emitting device |
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