JP2009238734A - Illumination lamp - Google Patents

Illumination lamp Download PDF

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Publication number
JP2009238734A
JP2009238734A JP2008327767A JP2008327767A JP2009238734A JP 2009238734 A JP2009238734 A JP 2009238734A JP 2008327767 A JP2008327767 A JP 2008327767A JP 2008327767 A JP2008327767 A JP 2008327767A JP 2009238734 A JP2009238734 A JP 2009238734A
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Japan
Prior art keywords
plate
housing
cooling fins
outside air
illuminating lamp
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Withdrawn
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JP2008327767A
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Japanese (ja)
Inventor
Tadahiro Okura
忠博 大倉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
E-LUMINEX CORP
POWER ECO JAPAN CO Ltd
Luminex Corp
Original Assignee
E-LUMINEX CORP
POWER ECO JAPAN CO Ltd
Luminex Corp
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Publication date
Application filed by E-LUMINEX CORP, POWER ECO JAPAN CO Ltd, Luminex Corp filed Critical E-LUMINEX CORP
Priority to JP2008327767A priority Critical patent/JP2009238734A/en
Priority to KR1020107019747A priority patent/KR20100119563A/en
Priority to EP09718275A priority patent/EP2251594A4/en
Priority to CN2009801079357A priority patent/CN101960217A/en
Priority to PCT/JP2009/000729 priority patent/WO2009110181A1/en
Priority to TW098106825A priority patent/TW200944710A/en
Publication of JP2009238734A publication Critical patent/JP2009238734A/en
Withdrawn legal-status Critical Current

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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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To diffuse thermal energy generated by a plurality of light emitting diodes to the outside efficiently. <P>SOLUTION: An illumination lamp comprises an attachment board 4 on whose one side 4a a protection cover 3 transmitting light from a plurality of projectors 2 is fixed so as to cover them, the projectors 2 using light emitting diodes as light sources and being fixed planarly on the protection cover 3, a plurality of plate cooling fins 5 protruding from the other side 4b of the attachment board to discharge heat generated by the projectors, and a housing 6 including a housing recession 6a and the attachment board being fixed thereon, wherein the attachment board is provided so as to form a space S for external air intake with an inner peripheral wall 6d of the housing, wherein the plurality of plate cooling fins protrude above the space for external intake so that they can be cooled down by the external air entering from the space, and wherein the housing has a plurality of slits 63 for discharging the external air heated by the heat dissipation from the plate cooling fins through the space for external air intake. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は照明灯に係り、特に発光ダイオード（以下、「ＬＥＤ」という。）を光源とする照明灯に関する。   The present invention relates to an illuminating lamp, and more particularly to an illuminating lamp using a light emitting diode (hereinafter referred to as “LED”) as a light source.

地球温暖化防止の推進に向けた取り組みを進めるために制定されたエネルギーの使用の合理化に関する法律（以下「省エネ法」という。）を遵守するために、近年、照明においても種々の取り組みがなされており、例えば、ＬＥＤを光源とする照明灯が開発されている（例えば、特許文献１参照。）。このＬＥＤを光源とする照明灯は、消費電力が極めて少なく長寿命で、而も電流で容易に輝度を制御でき、応答速度が速く発光を安定させることができるので、白熱電球などに替わる新しい照明として注目されている。   In order to comply with the Law Concerning the Rational Use of Energy (hereinafter referred to as the “Energy Saving Law”) enacted in order to promote efforts to prevent global warming, various efforts have been made in lighting in recent years. For example, an illumination lamp using an LED as a light source has been developed (see, for example, Patent Document 1). This LED light source has extremely low power consumption, long life, and can easily control brightness with current, and it can respond quickly and stabilize light emission. It is attracting attention as.

このＬＥＤを光源とする照明灯は、複数のＬＥＤから構成される光源と、複数のＬＥＤが取り付けられるＬＥＤ取付基板と、複数のＬＥＤが取り付けられたＬＥＤ取付基板を収納するケースとを備えている。また、ケースには複数のＬＥＤが位置する側に開口部が形成され、この開口部は透明の保護カバーによって覆われて、ケース内部には外気が入らない構造になっている。   The illuminating lamp using the LED as a light source includes a light source composed of a plurality of LEDs, an LED mounting board to which the plurality of LEDs are mounted, and a case for housing the LED mounting board to which the plurality of LEDs are mounted. . In addition, the case has an opening formed on the side where the plurality of LEDs are located, and the opening is covered with a transparent protective cover so that outside air does not enter the case.

さらに、このＬＥＤを光源とする照明灯は、ＬＥＤが発光すると熱エネルギーが発生するので、ケースに放熱作用を持たせている（例えば、特許文献２、特許文献３参照。）。特許文献２のＬＥＤ照明装置は、ＬＥＤ取付基板がケースの底部に放熱固定板を介して固定され、放熱固定板にはケースの底部に埋め込まれる複数の放熱フィンが形成されている。また、特許文献３のハイパワーＬＥＤを使用する街灯の散熱構造は、ケースが上蓋及び下蓋で構成され、下蓋にはＬＥＤ取付基板及び保護カバーが取り付けられ、上蓋の外周には散熱ヒダが形成されている。   Furthermore, in the illuminating lamp using the LED as a light source, heat energy is generated when the LED emits light, so that the case has a heat dissipation action (see, for example, Patent Document 2 and Patent Document 3). In the LED lighting device of Patent Document 2, the LED mounting substrate is fixed to the bottom of the case via a heat radiating fixing plate, and the heat radiating fixing plate is formed with a plurality of heat radiating fins embedded in the bottom of the case. Moreover, the heat dissipation structure of the streetlight using the high power LED of Patent Document 3 has a case composed of an upper lid and a lower lid, an LED mounting substrate and a protective cover attached to the lower lid, and a heat dissipation fold on the outer periphery of the upper lid. Is formed.

特開２００１−２５６８０５号公報JP 2001-256805 A 特開２００２−２９９７００号公報JP 2002-299700 A 登録実用新案第３１２７９３８号公報Registered Utility Model No. 3127938

しかしながら、背景技術に記載したＬＥＤ照明装置やハイパワーＬＥＤを使用する街灯の散熱構造は、放熱フィンあるいは散熱ヒダで各ＬＥＤからの熱を放熱することができるが、ケースは密閉構造なので、各ＬＥＤからの熱がケース内部で対流して外部に効率よく放熱することができなかった。   However, the heat dissipating structure of street lamps using LED lighting devices and high power LEDs described in the background art can dissipate heat from each LED with heat dissipating fins or heat dissipating folds. The heat from the convection inside the case could not be efficiently radiated to the outside.

本発明は、このような従来の難点を解消するためになされたもので、複数のＬＥＤが発光することにより発生する熱エネルギーを効率よく放熱できる照明灯を提供することを目的とする。   The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide an illuminating lamp that can efficiently dissipate heat energy generated when a plurality of LEDs emit light.

上述の目的を達成する本発明の照明灯は、ＬＥＤを光源とする投光器が平面状に複数固定され光を透過させる保護カバーが複数の投光器を覆うように一方の板面に固定されている取付基板と、複数の投光器で発生した熱を放熱するために取付基板の他方の板面から突出した状態で固定されている複数の板状冷却フィンと、収納凹部を有し、複数の板状冷却フィンが当該収納凹部内、及び保護カバーが当該収納凹部の開口面側にそれぞれ位置するように取付基板が固定されているハウジングとを備え、取付基板はハウジングの内周壁との間に外気取り入れ用空間が生じるように形成され、複数の板状冷却フィンは外気取り入れ用空間上に突出して当該外気取り入れ用空間から入り込む外気によって冷却されるように形成されていると共に、ハウジングは複数の板状冷却フィンの放熱作用によって暖められた外気取り入れ用空間から入り込んだ外気を外部に放出するスリットを複数設けているものである。   The illuminating lamp of the present invention that achieves the above-described object is a mounting in which a plurality of projectors each having an LED as a light source are fixed in a flat shape and a protective cover that transmits light is fixed to one plate surface so as to cover the plurality of projectors. A plurality of plate-like cooling fins that are fixed in a state of protruding from the other plate surface of the mounting substrate to dissipate the heat generated by the substrate, a plurality of projectors, and a plurality of plate-like coolings having a storage recess A housing in which a mounting board is fixed so that the fin is located in the housing recess and the protective cover is located on the opening surface side of the housing recess, and the mounting board is for taking in outside air between the inner peripheral wall of the housing A plurality of plate-like cooling fins are formed so as to protrude onto the outside air intake space and be cooled by the outside air entering from the outside air intake space. Ring are those plurality of slits to release the outside air that enters from the outside air intake space warmed by heat dissipation effect of the plurality of plate-shaped cooling fins to the outside.

このような第１の態様である照明灯によれば、複数の投光器が発光してその熱が取付基板を介して複数の板状冷却フィンに伝達すると、その複数の板状冷却フィンから放散された熱によって熱上昇気流が生じて外気取り入れ用空間から外気が吸い込まれ、さらにその吸い込まれた外気は複数の板状冷却フィン間の狭められた空間を通過することからベンチュリー効果により熱上昇気流の速度が加速して、通常の雰囲気状態よりも多量の空気が複数の板状冷却フィン間を通過することになるので、冷却効率を大幅に高めることができる。   According to the illuminating lamp which is such a first aspect, when the plurality of projectors emit light and the heat is transmitted to the plurality of plate-like cooling fins via the mounting substrate, they are dissipated from the plurality of plate-like cooling fins. As the heat rises, a heat rising air flow is generated and the outside air is sucked from the outside air intake space, and the sucked outside air passes through the narrowed space between the plurality of plate-like cooling fins. Since the speed is accelerated and a larger amount of air passes between the plurality of plate-like cooling fins than in a normal atmosphere state, the cooling efficiency can be greatly increased.

本発明の第２の態様は第１の態様である照明灯において、複数の板状冷却フィンの外気取り入れ用空間内における占有面積は、鳥等の動物が前記ハウジングの収納凹部内に開口面から入り込めないような大きさである。従来の照明灯は密閉構造なので、鳥等の動物が入り込むことはないが、本発明の照明灯では取付基板とハウジングの開口端との間に外気取り入れ用空間が形成されているので、本発明の第２の態様では複数の板状冷却フィンが外気取り入れ用空間に突出していることを利用して、その複数の板状冷却フィンの外気取り入れ用空間における占有面積を、鳥等の動物がハウジングの収納凹部内に開口面から入り込まないようにすることができる。   In the illuminating lamp according to the first aspect of the present invention, the area occupied by the plurality of plate-like cooling fins in the outside air intake space is such that an animal such as a bird can pass through the opening in the housing recess of the housing. The size is so large that it cannot enter. The conventional illuminating lamp has a sealed structure, so that animals such as birds do not enter. However, in the illuminating lamp according to the present invention, a space for taking in outside air is formed between the mounting substrate and the opening end of the housing. In the second aspect of the present invention, by utilizing the fact that a plurality of plate-like cooling fins protrude into the outside air intake space, an animal such as a bird housings the occupied area of the plurality of plate-like cooling fins in the outside air intake space. It is possible not to enter the storage recess from the opening surface.

本発明の第３の態様は第１の態様又は第２の態様である照明灯において、取付基板と板状冷却フィンとは、同一の導熱性の材質である。このような第３の態様である照明灯によれば、熱伝導率が同一になるので、熱伝達効率がよくなる。   According to a third aspect of the present invention, in the illuminating lamp according to the first aspect or the second aspect, the mounting substrate and the plate-like cooling fin are made of the same heat conductive material. According to the illuminating lamp which is such a third aspect, the heat conductivity is the same, so the heat transfer efficiency is improved.

本発明の第４の態様は第１の態様乃至第３の態様のうち何れか１態様である照明灯において、ハウジング、取付基板及び板状冷却フィンは、少なくとも当該ハウジングがマグネシウム合金で形成されているものである。このような第４の態様である照明灯によれば、熱伝導率が高く而も軽量な金属で形成されているので、冷却効率を大幅に高めることに寄与させることができると共に、照明灯を設置しやすくなる。   According to a fourth aspect of the present invention, in the illuminating lamp according to any one of the first to third aspects, at least the housing is formed of a magnesium alloy in the housing, the mounting substrate, and the plate-like cooling fin. It is what. According to the fourth aspect of the illuminating lamp, since it is made of a metal having high thermal conductivity and light weight, it is possible to contribute to greatly improving the cooling efficiency and Easy to install.

本発明の第５の態様は第１の態様乃至第４の態様のうち何れか１態様である照明灯において、スリットをハウジングに設ける位置は、ＬＥＤの照射方向に応じて複数の板状冷却フィンの放熱作用によって暖められた外気が上昇する方向に定められるものである。このような第４の態様である照明灯によれば、効率よく複数の板状冷却フィンから放散された熱を外部に逃がすことができるので、冷却効率を高めることができる。   According to a fifth aspect of the present invention, in the illuminating lamp according to any one of the first to fourth aspects, the position where the slit is provided in the housing is a plurality of plate-like cooling fins according to the irradiation direction of the LED. It is determined in a direction in which the outside air warmed by the heat radiation action of the water rises. According to the illuminating lamp which is such a 4th aspect, since the heat | fever dissipated from the several plate-shaped cooling fin can be escaped outside, cooling efficiency can be improved.

本発明の照明灯によれば、外気を灯具空間内に効率よく取り込むと共にその外気を直接板状冷却フィンに導き、さらにスリットへと逃がすことができるので、複数のＬＥＤが発光することにより発生する熱エネルギーを効率よく外部へ拡散することができる。   According to the illuminating lamp of the present invention, it is possible to efficiently take outside air into the lamp space, guide the outside air directly to the plate-like cooling fins, and further escape to the slits, which occurs when a plurality of LEDs emit light. Thermal energy can be efficiently diffused to the outside.

以下、本発明の照明灯を実施するための最良の形態例について、図面を参照して説明する。図１は本発明の照明灯１による最良な実施の一形態を示す全体斜視図である。図２は本発明の照明灯１を光源側から見た状態を示す正面図である。図３は図２の照明灯１を上面から見た状態を示す平面図である。図４は図２の照明灯１を左側面から見た状態を示す左側面図である。図５は図２の照明灯１を右側面から見た状態を示す右側面図である。図６は図２の照明灯１を下面から見た状態を示す底面図である。図７は図２の照明灯１を背面から見た状態を示す背面図である。図８は図２における断面ＸＸを示す断面図である。図９は図２における断面ＹＹを示す断面図である。図１０は図７における断面ＺＺを示す断面図である。なお、照明灯１に関する図面の全体を通じて同一要素には同一参照番号を付す。また、図１においては、投光器は省略されている。また、図１、図２においては保護カバー３は透明なので、投光器２は実線で示してある。   The best mode for carrying out the illuminating lamp of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view showing an embodiment of the illumination lamp 1 of the present invention. FIG. 2 is a front view showing a state in which the illumination lamp 1 of the present invention is viewed from the light source side. FIG. 3 is a plan view showing a state in which the illuminating lamp 1 of FIG. 2 is viewed from above. 4 is a left side view showing the illumination lamp 1 of FIG. 2 as viewed from the left side. FIG. 5 is a right side view showing the illumination lamp 1 of FIG. 2 as viewed from the right side. FIG. 6 is a bottom view showing the illuminating lamp 1 of FIG. FIG. 7 is a rear view showing a state in which the illumination lamp 1 of FIG. 2 is viewed from the back. FIG. 8 is a sectional view showing a section XX in FIG. FIG. 9 is a sectional view showing a section YY in FIG. FIG. 10 is a sectional view showing a section ZZ in FIG. In addition, the same reference number is attached | subjected to the same element through the whole drawing regarding the illuminating lamp 1. FIG. In FIG. 1, the projector is omitted. In FIGS. 1 and 2, the protective cover 3 is transparent, so that the projector 2 is shown by a solid line.

本発明の照明灯１は図１〜図９に示すように、ＬＥＤを光源とする投光器２が平面状に複数固定され、光を透過させる保護カバー３が複数の投光器２を覆うように一方の板面４ａに固定されている取付基板４と、複数の投光器２で発生した熱を放熱するために取付基板４の他方の板面４ｂから突出した状態で固定されている複数の板状冷却フィン５と、収納凹部６ａを有し、複数の板状冷却フィン５が当該収納凹部６ａ内、及び保護カバー３が当該収納凹部６ａの開口面側にそれぞれ位置するように取付基板４が固定されているハウジング６とを備えている。このような照明灯１は、外形が、円錐台１ａと、円錐台１ａの外径の大きい側に設けられた円柱１ｂとが組み合わされた形状で、ハウジング６の開口面となる開口端６ｂは円形状に形成されている。なお、投光器２は、ＬＥＤから発光された指向性のある光をレンズ部によって拡散することができ、図中においては、６４個が円形状に年輪のように配列されている。   As shown in FIGS. 1 to 9, the illuminating lamp 1 according to the present invention includes a plurality of light projectors 2 each having an LED as a light source, and a protective cover 3 that transmits light covers the plurality of light projectors 2. The mounting substrate 4 fixed to the plate surface 4a and the plurality of plate-like cooling fins fixed in a state of protruding from the other plate surface 4b of the mounting substrate 4 in order to dissipate heat generated by the plurality of projectors 2. 5 and a storage recess 6a, and the mounting substrate 4 is fixed so that the plurality of plate-like cooling fins 5 are positioned in the storage recess 6a and the protective cover 3 is located on the opening surface side of the storage recess 6a. And a housing 6. Such an illuminating lamp 1 has an outer shape in which a truncated cone 1a and a column 1b provided on the side of the truncated cone 1a having a larger outer diameter are combined, and an opening end 6b serving as an opening surface of the housing 6 is It is formed in a circular shape. In addition, the light projector 2 can diffuse the directional light emitted from the LED by the lens unit, and in the drawing, 64 pieces are arranged in a circular shape like an annual ring.

ハウジング６は、照明灯１の外形であり、中空の円錐台１ａ部分と、中空の円錐台１ａ部分の外径の大きい側に設けられた中空の略円柱１ｂ部分とが組み合わされた形状で、開口端６ｂは円形状に形成されている。円錐台１ａ部分の外径の小さい側には、各投光器２に所定の電力を供給するための電源部が収納される有底の円筒部材から成るソケット体６１が、上壁６ｃから一部突出するように設けられている。このソケット体６１の一部突出した部位には、コの字形の取っ手６２が固定されている。また、ハウジング６の円錐台１ａ部分の周壁上には全体に亘って複数のスリット６３が穿孔されている。さらに、ハウジング６の開口端６ｂにおける内周壁６ｄには図２、図１０に示すように、直径方向の線上における２箇所に取付基板４を固定するためのブラケット６４、６５が設けられている。このようなハウジング６は、例えばマグネシウム合金、アルミニウム合金、銅などの熱伝導率の高い金属で形成されていることが好ましいが、照明灯１は軽量なほうが設置しやすくなるので、マグネシウム合金が好適である。特に、大きな照明灯１の場合には軽量化による設置し易さは顕著である。   The housing 6 is an outer shape of the illuminating lamp 1, and is a shape in which a hollow truncated cone 1a portion and a hollow substantially circular column 1b portion provided on the larger outer diameter side of the hollow truncated cone 1a portion are combined. The open end 6b is formed in a circular shape. On the side of the truncated cone 1a having a small outer diameter, a socket body 61 made of a bottomed cylindrical member in which a power supply unit for supplying predetermined power to each projector 2 is housed partially protrudes from the upper wall 6c. It is provided to do. A U-shaped handle 62 is fixed to a part of the socket body 61 protruding. A plurality of slits 63 are perforated on the entire peripheral wall of the truncated cone 1a portion of the housing 6. Furthermore, as shown in FIGS. 2 and 10, brackets 64 and 65 for fixing the mounting substrate 4 are provided at two locations on the diametrical line on the inner peripheral wall 6 d at the opening end 6 b of the housing 6. Such a housing 6 is preferably made of a metal having high thermal conductivity such as magnesium alloy, aluminum alloy, copper, etc., but the lighter lamp 1 is easier to install, so a magnesium alloy is preferable. It is. In particular, in the case of a large illuminating lamp 1, the ease of installation by weight reduction is remarkable.

次に、複数の投光器２、保護カバー３及び複数の板状冷却フィン５を取り付けた取付基板４について図１１〜図１８に基づき説明する。   Next, the mounting substrate 4 to which the plurality of projectors 2, the protective cover 3, and the plurality of plate-like cooling fins 5 are attached will be described with reference to FIGS.

図１１〜図１８は本発明の照明灯の構成要素の一部である投光器２、保護カバー３及び複数の板状冷却フィン５を取付基板４に取り付けた状態を示す図である。図１１は本発明の照明灯を光源側から見た場合における取付基板４の状態を示す正面図である。図１２は本発明の照明灯を上面から見た場合における取付基板４の状態を示す平面図である。図１３は本発明の照明灯を左側面から見た場合における取付基板４の状態を示す左側面図である。図１４は本発明の照明灯を右側面から見た場合における取付基板４の状態を示す右側面図である。図１５は本発明の照明灯を下面から見た場合における取付基板４の状態を示す底面図である。図１６は本発明の照明灯を背面から見た場合における取付基板４の状態を示す背面図である。図１７は図１１における断面ＸＸを示す断面図である。図１８は図１１における断面ＹＹを示す断面図である。なお、図１１〜図１５においては保護カバー３は透明なので、投光器２は実線で示してある。   FIGS. 11-18 is a figure which shows the state which attached the light projector 2, the protective cover 3, and the some plate-shaped cooling fin 5 which are some components of the illuminating lamp of this invention to the attachment board | substrate 4. FIG. FIG. 11 is a front view showing the state of the mounting substrate 4 when the illumination lamp of the present invention is viewed from the light source side. FIG. 12 is a plan view showing a state of the mounting substrate 4 when the illuminating lamp of the present invention is viewed from above. FIG. 13 is a left side view showing a state of the mounting substrate 4 when the illumination lamp of the present invention is viewed from the left side. FIG. 14 is a right side view showing a state of the mounting substrate 4 when the illumination lamp of the present invention is viewed from the right side. FIG. 15 is a bottom view showing a state of the mounting substrate 4 when the illumination lamp of the present invention is viewed from the lower surface. FIG. 16 is a rear view showing the state of the mounting substrate 4 when the illumination lamp of the present invention is viewed from the back. FIG. 17 is a sectional view showing a section XX in FIG. 18 is a cross-sectional view showing a cross-section YY in FIG. In FIGS. 11 to 15, the protective cover 3 is transparent, so that the projector 2 is indicated by a solid line.

取付基板４は図２に示すように、ハウジング６の略円柱１ｂ部分における内周壁６ｄとの間に外気取り入れ用空間Ｓが生じるように形成されている。具体的には図２、図１１〜図１８に示すように、ハウジング６の略円柱１ｂ部分における内径より小さい外径で形成された円板から成る基部４ｃと、ハウジング６の開口端６ｂにおける内周壁６ｄに設けられたブラケット６４、６５に取付基板４を固定するために、基部４ｃの外径から直径方向に突出するように当該直径方向の線上に形成された取付座４ｄ、４ｅとから構成されている。この取付座４ｄ、４ｅをハウジング６のブラケット６４、６５に載置して、例えば図４、図５、図７に示すようなねじ６６でねじ止して、取付基板４をハウジング６に組み込むことができる。   As shown in FIG. 2, the mounting substrate 4 is formed such that an outside air intake space S is formed between the inner peripheral wall 6 d of the substantially columnar 1 b portion of the housing 6. Specifically, as shown in FIGS. 2 and 11 to 18, a base 4 c made of a disk formed with an outer diameter smaller than the inner diameter of the substantially cylindrical portion 1 b of the housing 6, and an inner portion of the opening 6 b of the housing 6. In order to fix the mounting substrate 4 to the brackets 64 and 65 provided on the peripheral wall 6d, the mounting base 4c includes mounting seats 4d and 4e formed on a line in the diameter direction so as to protrude from the outer diameter of the base portion 4c. Has been. The mounting seats 4d and 4e are placed on the brackets 64 and 65 of the housing 6 and fixed with screws 66 as shown in FIGS. Can do.

保護カバー３は図１１〜図１５、図１７、図１８に示すように、取付基板４の外周に沿って複数の投光器２を覆うように形成され、外側部位は段差で低く形成され、この段差部３１がねじ止めなどによって一方の板面４ａに固定されている。この保護カバー３は、例えば、ポリカーボネート、アクリル樹脂等の透明な合成樹脂で形成されている。また、保護カバー３の段差部３１は、取付基板４に固定されている縁カバー３２によって覆われていている。   As shown in FIGS. 11 to 15, 17, and 18, the protective cover 3 is formed so as to cover the plurality of projectors 2 along the outer periphery of the mounting substrate 4, and the outer portion is formed to be low at the step. The part 31 is fixed to one plate surface 4a by screwing or the like. The protective cover 3 is made of a transparent synthetic resin such as polycarbonate or acrylic resin. Further, the step portion 31 of the protective cover 3 is covered with an edge cover 32 fixed to the mounting substrate 4.

複数の板状冷却フィン５は図１１〜図１８、図１、図２に示すように、外気取り入れ用空間Ｓ上に突出して当該外気取り入れ用空間Ｓから入り込む外気によって冷却されるように形成されている。具体的には、板状冷却フィン５は長方形に形成され、長手方向が取付基板４の取付座４ｄ、４ｅの形成方向である直径方向に対して直交する方向に沿って配置されている。また、複数の板状冷却フィン５は、取付基板４の取付座４ｄ、４ｅの形成方向である直径方向に沿って等間隔に並列されている。この板状冷却フィン５間の間隔は、ハウジング６内においてベンチュリー効果が生じるような狭い空間で形成されている。例えば、ハウジング６の最大直径が４３０ｍｍ、長さが５００ｍｍの場合には、板厚１ｍｍの板状冷却フィン５を５ｍｍ間隔で配列することでベンチュリー効果を生じさせることが可能である。このように板状冷却フィン５間の間隔を形成することで、この板状冷却フィン５間を通過する外気の流速を増加させることができる。   As shown in FIGS. 11 to 18, 1, and 2, the plurality of plate-like cooling fins 5 are formed so as to protrude onto the outside air intake space S and be cooled by outside air entering from the outside air intake space S. ing. Specifically, the plate-like cooling fins 5 are formed in a rectangular shape, and are arranged along a direction in which the longitudinal direction is orthogonal to the diameter direction, which is the formation direction of the mounting seats 4 d and 4 e of the mounting substrate 4. The plurality of plate-like cooling fins 5 are arranged in parallel at equal intervals along the diameter direction, which is the direction in which the mounting seats 4 d and 4 e of the mounting substrate 4 are formed. The space between the plate-like cooling fins 5 is formed in a narrow space in which the Venturi effect is generated in the housing 6. For example, when the maximum diameter of the housing 6 is 430 mm and the length is 500 mm, it is possible to produce the venturi effect by arranging the plate-like cooling fins 5 having a thickness of 1 mm at intervals of 5 mm. Thus, by forming the space | interval between the plate-shaped cooling fins 5, the flow velocity of the external air passing between the plate-shaped cooling fins 5 can be increased.

各板状冷却フィン５の両端部は、ハウジング６の略円柱１ｂ部分における内周壁６ｄに沿って形成され、さらに、複数の板状冷却フィンの外気取り入れ用空間Ｓ内における占有面積は、鳥等の動物がハウジング６の収納凹部６ａ内に開口面から入り込めないような大きさである。従来の照明灯は密閉構造なので、鳥等の動物が入り込むことはないが、本発明の照明灯１では取付基板４とハウジング６の内周壁６ｄとの間に外気取り入れ用空間Ｓが形成されているので、複数の板状冷却フィン５が外気取り入れ用空間Ｓに突出していることを利用して、その複数の板状冷却フィン５の外気取り入れ用空間Ｓにおける占有面積を、鳥等の動物がハウジング６の収納凹部６ａ内に開口面から入り込まないようにすることができる。このような板状冷却フィン５は、取付基板４と同一の導熱性の材質が好ましい。取付基板４と板状冷却フィン５を同一の導熱性の材質にすることで熱伝導率が同一になるので、熱伝達効率がよくなる。この取付基板４及び板状冷却フィン５の導熱性の材質としては、ハウジング６と同様に、例えばマグネシウム合金、アルミニウム合金、銅などの熱伝導率の高い金属で形成されていることが好ましいが、照明灯１は軽量なほうが設置しやすくなるので、マグネシウム合金が好適である。なお、取付基板４及び板状冷却フィン５の何れか一方がマグネシウム合金、アルミニウム合金、銅などの熱伝導率の高い金属で形成されていてもよい。   Both end portions of each plate-like cooling fin 5 are formed along the inner peripheral wall 6d in the substantially columnar 1b portion of the housing 6, and the area occupied by the plurality of plate-like cooling fins in the outside air intake space S is bird or the like The size of the animal is such that it cannot enter the housing recess 6 a of the housing 6 from the opening surface. Since the conventional illuminating lamp has a sealed structure, animals such as birds do not enter, but in the illuminating lamp 1 of the present invention, an outside air intake space S is formed between the mounting substrate 4 and the inner peripheral wall 6 d of the housing 6. Therefore, by utilizing the fact that the plurality of plate-like cooling fins 5 protrude into the outside air intake space S, the animals such as birds can occupy the occupied area of the plurality of plate-like cooling fins 5 in the outside air intake space S. The housing 6 can be prevented from entering the housing recess 6a from the opening surface. Such a plate-like cooling fin 5 is preferably made of the same heat conductive material as that of the mounting substrate 4. Since the heat conductivity becomes the same by making the mounting substrate 4 and the plate-like cooling fin 5 the same heat conductive material, the heat transfer efficiency is improved. As the heat conductive material of the mounting substrate 4 and the plate-like cooling fin 5, it is preferable to be formed of a metal having a high thermal conductivity such as a magnesium alloy, an aluminum alloy, or copper, as in the housing 6. Since the illuminating lamp 1 is lighter and easier to install, a magnesium alloy is preferable. In addition, any one of the attachment board | substrate 4 and the plate-shaped cooling fin 5 may be formed with a metal with high heat conductivity, such as a magnesium alloy, an aluminum alloy, and copper.

この複数の投光器２、保護カバー３及び複数の板状冷却フィン５を取り付けた取付基板４は、ハウジング６の円柱１ｂ部分に配置され、ハウジング６の円錐台１ａ部分にはソケット体６１が配置されている。   The mounting substrate 4 to which the plurality of light projectors 2, the protective cover 3 and the plurality of plate-like cooling fins 5 are attached is disposed on the column 1 b portion of the housing 6, and the socket body 61 is disposed on the truncated cone 1 a portion of the housing 6. ing.

このように、流入流路である外気取り入れ用空間Ｓより流入した外気が流れるための空気流路をハウジング６内に形成した照明灯１について、複数のＬＥＤが発光することにより発生する熱エネルギーを外部へ拡散する動作について説明する。   As described above, with respect to the illuminating lamp 1 in which the air flow path in which the outside air that has flowed in from the outside air intake space S that is the inflow path flows is formed in the housing 6, the thermal energy generated by the light emission of the plurality of LEDs is generated. The operation for spreading outside will be described.

照明灯１を点灯することで複数の投光器２が発光すると、各ＬＥＤで発生した熱が取付基板４を介して複数の板状冷却フィン５に伝達するので、その複数の板状冷却フィン５から放散された熱によって熱上昇気流が生じて外気取り入れ用空間Ｓから外気が吸い込まれる。その吸い込まれた外気は複数の板状冷却フィン５間の狭い空間を通過することからベンチュリー効果により熱上昇気流の流速が増加して、通常の雰囲気状態よりも多量の空気が複数の板状冷却フィン５間を通過することになる。さらに、複数の板状冷却フィン５の放熱作用によって暖められた外気取り入れ用空間Ｓから入り込んだ外気は、複数の板状冷却フィン５より上方に位置する複数のスリット６３によって外部に放出される。   When the plurality of projectors 2 emit light by turning on the illuminating lamp 1, the heat generated by each LED is transmitted to the plurality of plate-like cooling fins 5 via the mounting substrate 4, so that the plurality of plate-like cooling fins 5 A heat rising air flow is generated by the dissipated heat, and the outside air is sucked from the outside air intake space S. Since the sucked outside air passes through a narrow space between the plurality of plate-like cooling fins 5, the flow rate of the heat rising air flow increases due to the venturi effect, and a larger amount of air than the normal atmospheric state is cooled by the plurality of plate-like cooling. It passes between the fins 5. Further, the outside air that has entered from the outside air intake space S heated by the heat radiation action of the plurality of plate-like cooling fins 5 is discharged to the outside through a plurality of slits 63 positioned above the plurality of plate-like cooling fins 5.

このように、外気を灯具空間内に効率よく取り込むと共にその外気を直接、板状冷却フィン５に導き、さらにスリット６３へと逃がすことができるので、冷却効率を大幅に高めることができる。したがって、発熱量の多いハイパワーＬＥＤに好適である。   As described above, the outside air can be efficiently taken into the lamp space and the outside air can be directly guided to the plate-like cooling fins 5 and further escaped to the slits 63, so that the cooling efficiency can be greatly increased. Therefore, it is suitable for high power LEDs that generate a large amount of heat.

なお、上述した照明灯１は、外形が、円錐台１ａと、円錐台１ａの外径の大きい側に設けられた円柱１ｂとが組み合わされた形状で、ハウジング６の開口面となる開口端６ｂは円形状に形成されていたが、これに限らず、図１９〜図２６に示すような外形が角錐台１００ａから成る形状で、開口面を矩形状に形成されている照明灯１００でもよい。   In addition, the illuminating lamp 1 described above has a shape in which the outer shape is a combination of the truncated cone 1a and the column 1b provided on the larger outer diameter side of the truncated cone 1a, and the opening end 6b serving as the opening surface of the housing 6. However, the present invention is not limited to this, and the illuminating lamp 100 having an outer shape as shown in FIGS. 19 to 26 formed of the truncated pyramid 100a and having a rectangular opening surface may be used.

図１９は本発明の照明灯１００による最良な実施の一形態を示す図で、照明灯１００を光源側から見た状態を示す正面図である。図２０は図１９の照明灯１００を上面から見た状態を示す平面図である。図２１は図１９の照明灯１００を左側面から見た状態を示す左側面図である。図２２は図１９の照明灯１００を右側面から見た状態を示す右側面図である。図２３は図１９の照明灯１００を下面から見た状態を示す底面図である。図２４は図１９の照明灯１００を背面から見た状態を示す背面図である。図２５は図１９における断面ＸＸを示す断面図である。図２６は図１９における断面ＹＹを示す断面図である。なお、照明灯１００に関する図面を通じて同一要素には同一参照番号を付す。また、図１９においては保護カバー３００は透明なので、投光器２００は実線で示してある。   FIG. 19 is a diagram showing an embodiment of the illumination lamp 100 according to the present invention, and is a front view showing the illumination lamp 100 as viewed from the light source side. FIG. 20 is a plan view showing the illumination lamp 100 of FIG. 19 as viewed from above. FIG. 21 is a left side view showing the illumination lamp 100 of FIG. 19 as viewed from the left side. FIG. 22 is a right side view showing the illumination lamp 100 of FIG. 19 as viewed from the right side. FIG. 23 is a bottom view showing the illuminating lamp 100 of FIG. 19 as viewed from below. FIG. 24 is a rear view showing the illuminating lamp 100 of FIG. 19 as viewed from the back. FIG. 25 is a sectional view showing a section XX in FIG. FIG. 26 is a sectional view showing a section YY in FIG. In addition, the same reference number is attached | subjected to the same element through drawing regarding the illumination lamp 100. FIG. In FIG. 19, since the protective cover 300 is transparent, the projector 200 is indicated by a solid line.

本発明の照明灯１００は図１９〜図２６に示すように、ＬＥＤを光源とする投光器２００が平面状に複数固定され、光を透過させる保護カバー３００が複数の投光器２００を覆うように一方の板面４００ａに固定されている取付基板４００と、複数の投光器２００で発生した熱を放熱するために取付基板４００の他方の板面４００ｂから突出した状態で固定されている複数の板状冷却フィン５００と、収納凹部６００ａを有し、複数の板状冷却フィン５００が当該収納凹部６００ａ内、及び保護カバー３００が当該収納凹部６００ａの開口面側にそれぞれ位置するように取付基板４００が固定されているハウジング６００とを備えている。なお、投光器２００は、上述した照明灯１の投光器２と同様に、ＬＥＤから発光された指向性のある光をレンズ部によって広角に照射することができ、図中においては、３２個が６列に並べて分割されて配列されている。   As shown in FIGS. 19 to 26, the illumination lamp 100 according to the present invention includes a plurality of projectors 200 each having an LED as a light source, and a protective cover 300 that transmits light covers the plurality of projectors 200. Mounting plate 400 fixed to plate surface 400a and a plurality of plate-like cooling fins fixed in a protruding state from the other plate surface 400b of mounting substrate 400 in order to dissipate heat generated by the plurality of projectors 200 500 and a storage recess 600a, and the mounting substrate 400 is fixed so that the plurality of plate-like cooling fins 500 are positioned in the storage recess 600a and the protective cover 300 is located on the opening surface side of the storage recess 600a. Housing 600. In addition, the projector 200 can irradiate the directional light emitted from the LED at a wide angle by the lens unit in the same manner as the projector 2 of the illuminating lamp 1 described above. Are arranged side by side.

ハウジング６００は、照明灯１００の外形であり、中空の角錐台１００ａから成る形状で、ハウジング６００の開口面となる開口端６００ｂは矩形状に形成されている。このハウジング６００の上壁６００ｃには、各投光器２に所定の電力を供給するための電源部が収納される電源ボックス６０１が固定されている。また、ハウジング６００の対辺となる一対の側面６０２、６０３の開口端６００ｂ近傍には、コの字形の取っ手６０４がねじ６０５、６０６で固定されている。さらに、ハウジング６００の一対の側面６０２、６０３とは異なる対辺となる一対の側面６０７、６０８には、それぞれ複数のスリット６０９、６１０が穿孔されている。この複数のスリット６０９、６１０をハウジング６００に設ける位置は、投光器２００のＬＥＤの照射方向に応じて複数の板状冷却フィン５００の放熱作用によって暖められた外気が上昇する方向に定められる。このようにスリットの位置を定めることで、効率よく複数の板状冷却フィン５００から放散された熱を外部に逃がすことができるので、冷却効率を高めることができる。このようなハウジング６００は、例えばマグネシウム合金、アルミニウム合金、銅などの熱伝導率の高い金属で形成されていることが好ましいが、照明灯１００は軽量なほうが設置しやすくなるので、マグネシウム合金が好適である。特に、大きな照明灯１００の場合には軽量化による設置し易さは顕著である。   The housing 600 is the outer shape of the illuminating lamp 100, and is formed of a hollow truncated pyramid 100a. The opening end 600b serving as the opening surface of the housing 600 is formed in a rectangular shape. On the upper wall 600c of the housing 600, a power supply box 601 in which a power supply unit for supplying predetermined power to each projector 2 is housed is fixed. In addition, a U-shaped handle 604 is fixed with screws 605 and 606 in the vicinity of the opening end 600 b of the pair of side surfaces 602 and 603 that are opposite sides of the housing 600. Further, a plurality of slits 609 and 610 are perforated on a pair of side surfaces 607 and 608 that are opposite to the pair of side surfaces 602 and 603 of the housing 600. The positions at which the plurality of slits 609 and 610 are provided in the housing 600 are determined in the direction in which the outside air heated by the heat radiation action of the plurality of plate-like cooling fins 500 rises according to the irradiation direction of the LEDs of the projector 200. By determining the position of the slit in this way, the heat dissipated from the plurality of plate-like cooling fins 500 can be efficiently released to the outside, so that the cooling efficiency can be improved. Such a housing 600 is preferably formed of a metal having high thermal conductivity such as magnesium alloy, aluminum alloy, copper, etc., but the lighter lamp 100 is easier to install, so a magnesium alloy is preferable. It is. In particular, in the case of the large illuminating lamp 100, the ease of installation by weight reduction is remarkable.

次に、複数の投光器２００、保護カバー３００及び複数の板状冷却フィン５００を取り付けた取付基板４００について図２７〜図３４に基づき説明する。   Next, the mounting substrate 400 to which the plurality of projectors 200, the protective cover 300, and the plurality of plate-like cooling fins 500 are attached will be described with reference to FIGS.

図２７〜図３４は本発明の照明灯の構成要素の一部である投光器２００、保護カバー３００及び複数の板状冷却フィン５００を取付基板４００に取り付けた状態を示す図である。図２７は本発明の照明灯を光源側から見た場合における取付基板４００の状態を示す正面図である。図２８は本発明の照明灯を上面から見た場合における取付基板４００の状態を示す平面図である。図２９は本発明の照明灯を左側面から見た場合における取付基板４００の状態を示す左側面図である。図３０は本発明の照明灯を右側面から見た場合における取付基板４００の状態を示す右側面図である。図３１は本発明の照明灯を下面から見た場合における取付基板４００の状態を示す底面図である。図３２は本発明の照明灯を背面から見た場合における取付基板４００の状態を示す背面図である。図３３は図２７における断面ＸＸを示す断面図である。図３４は図２７における断面ＹＹを示す断面図である。なお、図２７〜図３１においては保護カバー３００は透明なので、投光器２００は実線で示してある。   27 to 34 are views showing a state in which the projector 200, the protective cover 300, and the plurality of plate-like cooling fins 500, which are a part of the components of the illuminating lamp of the present invention, are attached to the mounting substrate 400. FIG. FIG. 27 is a front view showing a state of the mounting substrate 400 when the illumination lamp of the present invention is viewed from the light source side. FIG. 28 is a plan view showing a state of the mounting substrate 400 when the illuminating lamp of the present invention is viewed from above. FIG. 29 is a left side view showing the state of the mounting substrate 400 when the illumination lamp of the present invention is viewed from the left side. FIG. 30 is a right side view showing the state of the mounting substrate 400 when the illumination lamp of the present invention is viewed from the right side. FIG. 31 is a bottom view showing a state of the mounting substrate 400 when the illuminating lamp of the present invention is viewed from the lower surface. FIG. 32 is a rear view showing the state of the mounting substrate 400 when the illumination lamp of the present invention is viewed from the back. FIG. 33 is a sectional view showing a section XX in FIG. 34 is a sectional view showing a section YY in FIG. In FIGS. 27 to 31, the protective cover 300 is transparent, and the projector 200 is indicated by a solid line.

取付基板４００は図１９に示すように、ハウジング６００の一対の側面６０７、６０８の各内周壁６００ｄとの間に外気取り入れ用空間Ｓが生じるように形成されている。この取付基板４００には、ハウジング６００の一対の側面６０２、６０３の開口端６００ｂ近傍に、コの字形の取っ手６０４を固定するねじ６０５、６０６を流用して一対の側面６０２、６０３に固定するための取付座４００ｃ、４００ｄが形成されている。この取付座４００ｃ、４００ｄをハウジング６００の開口面となる開口端６００ｂに嵌め込み、ねじ６０５、６０６で一対の側面６０２、６０３にねじ止めすることで、取付基板４００をハウジング６００に組み込むことができる。   As shown in FIG. 19, the mounting substrate 400 is formed so that an outside air intake space S is formed between the inner peripheral walls 600 d of the pair of side surfaces 607 and 608 of the housing 600. In the mounting substrate 400, screws 605 and 606 for fixing a U-shaped handle 604 are used in the vicinity of the opening ends 600 b of the pair of side surfaces 602 and 603 of the housing 600 so as to be fixed to the pair of side surfaces 602 and 603. Mounting seats 400c and 400d are formed. The mounting base 400 can be incorporated into the housing 600 by fitting the mounting seats 400 c and 400 d into the opening end 600 b serving as the opening surface of the housing 600 and screwing the mounting seats 400 c and 400 d to the pair of side surfaces 602 and 603 with screws 605 and 606.

保護カバー３００は図２７〜図３１、図３３、図３４に示すように、取付基板４００の外周に沿って複数の投光器２００を覆うように形成され、外側部位は段差で低く形成され、この段差部３０１がねじ止めなどによって一方の板面４００ａに固定されている。この保護カバー３００は、例えば、ポリカーボネート、アクリル樹脂等の透明な合成樹脂で形成されている。また、保護カバー３００の段差部３０１は、取付基板４００に固定されている縁カバー３０２によって覆われていている。   As shown in FIGS. 27 to 31, 33, and 34, the protective cover 300 is formed so as to cover the plurality of projectors 200 along the outer periphery of the mounting substrate 400, and the outer portion is formed to be low in steps. The part 301 is fixed to one plate surface 400a by screwing or the like. The protective cover 300 is formed of a transparent synthetic resin such as polycarbonate or acrylic resin. Further, the step portion 301 of the protective cover 300 is covered with an edge cover 302 fixed to the mounting substrate 400.

複数の板状冷却フィン５００は図２７〜図３４、図１９に示すように、外気取り入れ用空間Ｓ上に突出して当該外気取り入れ用空間Ｓから入り込む外気によって冷却されるように形成されている。具体的には、板状冷却フィン５００は長方形に形成され、取付基板４００をハウジング６００に組み込んだ際、長手方向がハウジング６００の一対の側面６０２、６０３に沿うように取付基板４００に固定されている。また、複数の板状冷却フィン５は、ハウジング６００の一対の側面６０７、６０８に沿って等間隔に並列されている。この板状冷却フィン５００間の間隔は、ハウジング６００内においてベンチュリー効果が生じるような空間に形成されている。このように板状冷却フィン５００間の間隔を形成することで、この板状冷却フィン５００間を通過する外気の流速を増加させることができる。   As shown in FIGS. 27 to 34 and FIG. 19, the plurality of plate-like cooling fins 500 are formed so as to protrude from the outside air intake space S and be cooled by outside air entering from the outside air intake space S. Specifically, the plate-like cooling fins 500 are formed in a rectangular shape, and are fixed to the mounting substrate 400 so that the longitudinal direction is along the pair of side surfaces 602 and 603 of the housing 600 when the mounting substrate 400 is assembled into the housing 600. Yes. In addition, the plurality of plate-like cooling fins 5 are arranged in parallel at equal intervals along the pair of side surfaces 607 and 608 of the housing 600. The space between the plate-like cooling fins 500 is formed in a space in the housing 600 where a venturi effect occurs. Thus, by forming the space | interval between the plate-shaped cooling fins 500, the flow velocity of the external air passing between the plate-shaped cooling fins 500 can be increased.

各板状冷却フィン５００の端部は、ハウジング６００の一対の側面６０７、６０８に沿って形成され、さらに、複数の板状冷却フィンの外気取り入れ用空間Ｓ内における占有面積は、鳥等の動物がハウジング６００の収納凹部６００ａ内に開口面から入り込めないような大きさである。従来の照明灯は密閉構造なので、鳥等の動物が入り込むことはないが、本発明の照明灯１００では取付基板４００とハウジング６００の内周壁６００ｄとの間に外気取り入れ用空間Ｓが形成されているので、複数の板状冷却フィン５００が外気取り入れ用空間Ｓに突出していることを利用して、その複数の板状冷却フィン５００の外気取り入れ用空間Ｓにおける占有面積を、鳥等の動物がハウジング６００の収納凹部６００ａ内に開口面から入り込まないようにすることができる。このような板状冷却フィン５００は、取付基板４００と同一の導熱性の材質が好ましい。取付基板４００と板状冷却フィン５００を同一の導熱性の材質にすることで熱伝導率が同一になるので、熱伝達効率がよくなる。この取付基板４００及び板状冷却フィン５００の導熱性の材質としては、ハウジング６００と同様に、例えばマグネシウム合金、アルミニウム合金、銅などの熱伝導率の高い金属で形成されていることが好ましいが、照明灯１００は軽量なほうが設置しやすくなるので、マグネシウム合金が好適である。   The end portions of each plate-shaped cooling fin 500 are formed along a pair of side surfaces 607 and 608 of the housing 600, and the occupied area in the outside air intake space S of the plurality of plate-shaped cooling fins is an animal such as a bird. However, the size is such that it cannot enter the housing recess 600a of the housing 600 from the opening surface. Since the conventional illumination lamp has a sealed structure, animals such as birds do not enter, but in the illumination lamp 100 of the present invention, an outside air intake space S is formed between the mounting substrate 400 and the inner peripheral wall 600d of the housing 600. Therefore, by utilizing the fact that the plurality of plate-like cooling fins 500 protrude into the outside air intake space S, an animal such as a bird can occupy the occupied area of the plurality of plate-like cooling fins 500 in the outside air intake space S. The housing 600 can be prevented from entering the housing recess 600a from the opening surface. Such a plate-like cooling fin 500 is preferably made of the same heat conductive material as that of the mounting substrate 400. Since the heat conductivity becomes the same by making the mounting substrate 400 and the plate-like cooling fins 500 the same heat conductive material, the heat transfer efficiency is improved. As the heat conductive material of the mounting substrate 400 and the plate-like cooling fin 500, like the housing 600, it is preferable that the mounting substrate 400 and the plate-like cooling fin 500 are made of a metal having a high thermal conductivity such as a magnesium alloy, an aluminum alloy, or copper. Since the illuminating lamp 100 is lighter and easier to install, a magnesium alloy is preferable.

この複数の投光器２００、保護カバー３００及び複数の板状冷却フィン５００を取り付けた取付基板４００は、ハウジング６００の開口端６００ｂ側の１／２位のスペースに配置され、ハウジング６００の残りのスペースにおける上壁６００ｃ側の１／２位に電源ボックス６０１が配置されている。   The mounting substrate 400 to which the plurality of light projectors 200, the protective cover 300, and the plurality of plate-like cooling fins 500 are attached is disposed in a half space on the opening end 600b side of the housing 600, and in the remaining space of the housing 600. A power supply box 601 is arranged at a half position on the upper wall 600c side.

このように、流入流路である外気取り入れ用空間Ｓより流入した外気が流れるための空気流路をハウジング６００内に形成した照明灯１００について、複数のＬＥＤが発光することにより発生する熱エネルギーを外部へ拡散する動作について説明する。   As described above, with respect to the illumination lamp 100 in which the air flow path in which the outside air flowing in from the outside air intake space S that is the inflow path flows is formed in the housing 600, the thermal energy generated by the light emission of the plurality of LEDs is generated. The operation for spreading outside will be described.

照明灯１００を点灯することで複数の投光器２００が発光すると、各ＬＥＤで発生した熱が取付基板４００を介して複数の板状冷却フィン５００に伝達するので、その複数の板状冷却フィン５００から放散された熱によって熱上昇気流が生じて外気取り入れ用空間Ｓから外気が吸い込まれる。その吸い込まれた外気は複数の板状冷却フィン５００間の狭い空間を通過することからベンチュリー効果により熱上昇気流の流速が増加して、通常の雰囲気状態よりも多量の空気が複数の板状冷却フィン５００間を通過することになる。さらに、複数の板状冷却フィン５００の放熱作用によって暖められた外気取り入れ用空間Ｓから入り込んだ外気は、例えば側面６０７に穿孔された複数のスリット６０９が複数の板状冷却フィン５００より上方に位置する場合には、熱上昇気流によって複数のスリット６０９から多くの空気が外部に放出される。   When the plurality of projectors 200 emit light by turning on the illuminating lamp 100, the heat generated by each LED is transmitted to the plurality of plate-like cooling fins 500 via the mounting substrate 400, and thus from the plurality of plate-like cooling fins 500. A heat rising air flow is generated by the dissipated heat, and the outside air is sucked from the outside air intake space S. Since the sucked outside air passes through a narrow space between the plurality of plate-like cooling fins 500, the flow rate of the heat rising air flow increases due to the venturi effect, and a larger amount of air than the normal atmospheric state is cooled by the plurality of plate-like cooling. It passes between the fins 500. Further, the outside air that has entered from the outside air intake space S heated by the heat radiation action of the plurality of plate-like cooling fins 500 has, for example, a plurality of slits 609 perforated on the side surface 607 positioned above the plurality of plate-like cooling fins 500. In this case, a large amount of air is released to the outside from the plurality of slits 609 by the heat rising airflow.

このように、外気を灯具空間内に効率よく取り込むと共にその外気を直接、板状冷却フィン５００に導き、さらにスリット６０９へと逃がすことができるので、冷却効率を大幅に高めることができる。したがって、発熱量の多いハイパワーＬＥＤに好適である。   As described above, the outside air can be efficiently taken into the lamp space, and the outside air can be directly guided to the plate-like cooling fins 500 and further escaped to the slits 609, so that the cooling efficiency can be greatly improved. Therefore, it is suitable for high power LEDs that generate a large amount of heat.

これまで本発明について図面に示した特定の実施の形態をもって説明してきたが、本発明は図面に示した実施の形態に限定されるものではなく、本発明の効果を奏する限り、これまで知られたいかなる構成であっても採用することができることはいうまでもないことである。   Although the present invention has been described with the specific embodiments shown in the drawings, the present invention is not limited to the embodiments shown in the drawings, and is known so far as long as the effects of the present invention are achieved. It goes without saying that any configuration can be adopted.

本発明の照明灯は、駐車場、街路灯、ホール、列車の操作場、ビルのライトアップ等の照明として利用可能である。   The illumination lamp of the present invention can be used as illumination for parking lots, street lamps, halls, train operation areas, building light-ups, and the like.

本発明の照明灯による最良な実施の一形態を示す全体斜視図である。It is a whole perspective view which shows one best embodiment by the illuminating lamp of this invention. 図１の照明灯を示す正面図である。It is a front view which shows the illuminating lamp of FIG. 図１の照明灯を示す平面図である。It is a top view which shows the illuminating lamp of FIG. 図１の照明灯を示す左側面図である。It is a left view which shows the illuminating lamp of FIG. 図１の照明灯を示す右側面図である。It is a right view which shows the illuminating lamp of FIG. 図１の照明灯を示す底面図である。It is a bottom view which shows the illuminating lamp of FIG. 図１の照明灯を示す背面図である。It is a rear view which shows the illuminating lamp of FIG. 図２の照明灯における断面ＸＸを示す断面図である。It is sectional drawing which shows the cross section XX in the illuminating lamp of FIG. 図２の照明灯における断面ＹＹを示す断面図である。It is sectional drawing which shows the cross section YY in the illuminating lamp of FIG. 図７の照明灯における断面ＺＺを示す断面図である。It is sectional drawing which shows the cross section ZZ in the illuminating lamp of FIG. 本発明の照明灯の構成要素の一部である投光器、保護カバー及び複数の板状冷却フィンを取付基板に取り付けた状態を示す正面図である。It is a front view which shows the state which attached the projector, protective cover, and several plate-shaped cooling fin which are some components of the illuminating lamp of this invention to the attachment board | substrate. 図１１の取付基板の平面を示す図である。It is a figure which shows the plane of the attachment board | substrate of FIG. 図１１の取付基板の左側面を示す図である。It is a figure which shows the left side surface of the attachment board | substrate of FIG. 図１１の取付基板の右側面を示す図である。It is a figure which shows the right side surface of the attachment board | substrate of FIG. 図１１の取付基板の底面を示す図である。It is a figure which shows the bottom face of the attachment board | substrate of FIG. 図１１の取付基板の背面を示す図である。It is a figure which shows the back surface of the attachment board | substrate of FIG. 図１１の取付基板における断面ＸＸを示す断面図である。It is sectional drawing which shows the cross section XX in the attachment board | substrate of FIG. 図１１の取付基板における断面ＹＹを示す断面図である。It is sectional drawing which shows the cross section YY in the attachment board | substrate of FIG. 本発明の照明灯による他の実施の一形態を示す正面図である。It is a front view which shows other one Embodiment by the illuminating lamp of this invention. 図１９の照明灯の平面を示す図である。It is a figure which shows the plane of the illuminating lamp of FIG. 図１９の照明灯の左側面を示す図である。It is a figure which shows the left side surface of the illuminating lamp of FIG. 図１９の照明灯の右側面を示す図である。It is a figure which shows the right side surface of the illuminating lamp of FIG. 図１９の照明灯の底面を示す図である。It is a figure which shows the bottom face of the illuminating lamp of FIG. 図１９の照明灯の背面を示す図である。It is a figure which shows the back surface of the illuminating lamp of FIG. 図１９の照明灯における断面ＸＸを示す断面図である。It is sectional drawing which shows the cross section XX in the illuminating lamp of FIG. 図１９の照明灯における断面ＹＹを示す断面図である。It is sectional drawing which shows the cross section YY in the illuminating lamp of FIG. 本発明の照明灯の構成要素の一部である投光器、保護カバー及び複数の板状冷却フィンを取付基板に取り付けた状態を示す正面図である。It is a front view which shows the state which attached the projector, protective cover, and several plate-shaped cooling fin which are some components of the illuminating lamp of this invention to the attachment board | substrate. 図２７の取付基板の平面を示す図である。It is a figure which shows the plane of the attachment board | substrate of FIG. 図２７の取付基板の左側面を示す図である。It is a figure which shows the left side surface of the attachment board | substrate of FIG. 図２７の取付基板の右側面を示す図である。It is a figure which shows the right side surface of the attachment board | substrate of FIG. 図２７の取付基板の底面を示す図である。It is a figure which shows the bottom face of the attachment board | substrate of FIG. 図２７の取付基板の背面を示す図である。It is a figure which shows the back surface of the attachment board | substrate of FIG. 図２７の取付基板における断面ＸＸを示す断面図である。It is sectional drawing which shows the cross section XX in the attachment board | substrate of FIG. 図２７の取付基板における断面ＹＹを示す断面図である。It is sectional drawing which shows the cross section YY in the attachment board | substrate of FIG.

符号の説明Explanation of symbols

１、１００……照明灯
２、２００……投光器
３、３００……保護カバー
４、４００……取付基板
４ａ、４００ａ……一方の板面
４ｂ、４００ｂ……他方の板面
５、５００……板状冷却フィン
６、６００……ハウジング
６ｄ、６００ｄ……内周壁
６３、６０９、６１０……スリット DESCRIPTION OF SYMBOLS 1,100 ... Illuminating lamp 2,200 ... Floodlight 3,300 ... Protective cover 4,400 ... Mounting substrate 4a, 400a ... One plate surface 4b, 400b ... The other plate surface 5,500 ... Plate-like cooling fins 6, 600 ... Housing 6d, 600d ... Inner wall 63, 609, 610 ... Slit

Claims (5)

発光ダイオードを光源とする投光器が平面状に複数固定され光を透過させる保護カバーが前記複数の投光器を覆うように一方の板面に固定されている取付基板と、
前記複数の投光器で発生した熱を放熱するために前記取付基板の他方の板面から突出した状態で固定されている複数の板状冷却フィンと、
収納凹部を有し、前記複数の板状冷却フィンが当該収納凹部内及び前記保護カバーが当該収納凹部の開口面側にそれぞれ位置するように前記取付基板が固定されているハウジングとを備え、
前記取付基板は前記ハウジングの内周壁との間に外気取り入れ用空間が生じるように形成され、前記複数の板状冷却フィンは前記外気取り入れ用空間上に突出して当該外気取り入れ用空間から入り込む前記外気によって冷却されるように形成されていると共に、前記ハウジングは前記複数の板状冷却フィンの放熱作用によって暖められた前記外気取り入れ用空間から入り込んだ前記外気を外部に放出するスリットを複数設けていることを特徴とする照明灯。 A plurality of projectors each having a light emitting diode as a light source are fixed in a plane and a protective cover that transmits light is fixed to one plate surface so as to cover the plurality of projectors;
A plurality of plate-like cooling fins fixed in a state of protruding from the other plate surface of the mounting substrate in order to dissipate heat generated by the plurality of projectors;
A housing having a housing recess, the plurality of plate-like cooling fins being fixed to the housing recess so that the protective cover is positioned on the opening surface side of the housing recess, respectively.
The mounting board is formed so that an outside air intake space is formed between the inner peripheral wall of the housing, and the plurality of plate-like cooling fins protrude from the outside air intake space and enter the outside air intake space. The housing is provided with a plurality of slits for releasing the outside air that has entered from the outside air intake space heated by the heat radiation action of the plurality of plate-like cooling fins to the outside. An illumination lamp characterized by that. 前記複数の板状冷却フィンの前記外気取り入れ用空間内における占有面積は、鳥等の動物が前記ハウジングの前記収納凹部内に前記開口面から入り込めないような大きさであることを特徴とする請求項１記載の照明灯。   An occupied area of the plurality of plate-like cooling fins in the outside air intake space is such that an animal such as a bird cannot enter the housing recess of the housing from the opening surface. The illumination lamp according to claim 1. 前記取付基板と前記板状冷却フィンとは、同一の導熱性の材質であることを特徴とする請求項１又は請求項２記載の照明灯。   The illuminating lamp according to claim 1 or 2, wherein the mounting substrate and the plate-like cooling fin are made of the same heat conductive material. 前記ハウジング、前記取付基板及び前記板状冷却フィンは、少なくとも当該ハウジングがマグネシウム合金で形成されていることを特徴とする請求項１乃至請求項３のうち何れか１項に記載の照明灯。   The illuminating lamp according to any one of claims 1 to 3, wherein at least the housing of the housing, the mounting substrate, and the plate-like cooling fin is made of a magnesium alloy. 前記スリットを前記ハウジングに設ける位置は、前記発光ダイオードの照射方向に応じて前記複数の板状冷却フィンの放熱作用によって暖められた前記外気が上昇する方向に定められることを特徴とする請求項１乃至請求項４のうち何れか１項に記載の照明灯。   The position where the slit is provided in the housing is determined in a direction in which the outside air heated by the heat radiation action of the plurality of plate-like cooling fins rises in accordance with an irradiation direction of the light emitting diode. The illuminating lamp according to any one of claims 4 to 4.
JP2008327767A 2008-03-06 2008-12-24 Illumination lamp Withdrawn JP2009238734A (en)

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EP09718275A EP2251594A4 (en) 2008-03-06 2009-02-20 Illuminating lamp
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TW200944710A (en) 2009-11-01
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EP2251594A1 (en) 2010-11-17
KR20100119563A (en) 2010-11-09
CN101960217A (en) 2011-01-26

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