JP2006040727A - Light-emitting diode lighting device and illumination device - Google Patents

Light-emitting diode lighting device and illumination device Download PDF

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JP2006040727A
JP2006040727A JP2004219308A JP2004219308A JP2006040727A JP 2006040727 A JP2006040727 A JP 2006040727A JP 2004219308 A JP2004219308 A JP 2004219308A JP 2004219308 A JP2004219308 A JP 2004219308A JP 2006040727 A JP2006040727 A JP 2006040727A
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emitting diode
light emitting
light
lighting device
device body
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淳 ▲高▼島
Atsushi Takashima
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Matsushita Electric Works Ltd
松下電工株式会社
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/023Power supplies in a casing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/23Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/007Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/001Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • F21V23/002Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light-emitting diode lighting device capable of improving a heat radiation property of the light-emitting diode without increasing manufacturing cost. <P>SOLUTION: The light-emitting diode lighting device comprises a metallic container 3 equipped with a plurality of heat radiation fins 34, and a printed circuit board 2 housed in the container 3, in which the light-emitting diodes 1 are mounted. The light-emitting diodes 1 on the printed circuit board 2 are located at the position near the inner face of the container 3. The heat radiation of the light-emitting diodes 1 is made possible by the heat radiation fins 34 arranged on the container 1. Since exchange of materials and addition of parts are unnecessary, the heat radiation property of the light-emitting diodes 1 can be improved without increasing manufacturing cost. Further, the shape of a connection part 4 for supplying power to a power source part 6 supplying power to the light-emitting diode 1 is formed as same as that of the metal cap of an electric bulb, the lighting device can be mounted on the illumination device for a conventional electric bulb. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、発光ダイオードを点灯させる発光ダイオード点灯装置及び照明器具に関するものである。 The present invention relates to a light emitting diode lighting devices and luminaires to light the light emitting diode.

従来から、発光ダイオードを点灯させる発光ダイオード点灯装置が提供されている(例えば、特許文献1参照)。 Conventionally, the light emitting diode lighting device for lighting a light emitting diode is provided (for example, see Patent Document 1).

ここで、発光ダイオードは発熱部品であり、かつ、温度が上昇すると電力から光への変換効率が低下する上に発光ダイオード自体の劣化も促進される。 Here, the light emitting diode is exothermic part, and, the conversion efficiency from the power when the temperature rises to light is also promoted deterioration of the light emitting diode itself over to drop.

そこで、従来の発光ダイオード点灯装置においては、発光ダイオードの放熱のため、発光ダイオードを金属製の基板に実装していた。 Therefore, in the conventional light-emitting diode lighting apparatus, the heat dissipation of the light emitting diodes, light-emitting diodes were mounted on a metallic substrate.
特開2001−243809号公報 JP 2001-243809 JP

しかし、金属製の基板は高価であったため、製造コストが増大していた。 However, since the metal substrate was expensive, manufacturing cost was increased.

本発明は上記事由に鑑みて為されたものであり、その目的は、製造コストを増大させることなく発光ダイオードの放熱性を向上することのできる発光ダイオード点灯装置を提供することにある。 The present invention has been made in view of the above circumstances, an object thereof is to provide a light-emitting diode lighting device capable of improving the heat dissipation of the light emitting diode without increasing the manufacturing cost.

請求項1の発明は、複数個の発光ダイオードと、各発光ダイオードがそれぞれ実装されたプリント配線板と、各発光ダイオードの光がそれぞれ通過する窓穴を有し各発光ダイオードの発光部をそれぞれ窓穴へ向けてプリント配線板が収納された器体と、電球の口金と同形状であって電球用のソケットに電気的かつ機械的に接続される接続部と、接続部を通じて電源を供給され各発光ダイオードの電源を生成する電源部とを備え、器体の外面には複数の放熱フィンが突設され、各発光ダイオードをそれぞれ器体内面に近接配置したことを特徴とする。 The invention of claim 1 includes a plurality of light emitting diodes, and the printed wiring board to the light emitting diodes are mounted respectively, each window a light emitting portion of the light-emitting diodes have a window hole through which light passes each of the light emitting diodes a device body which printed circuit board is accommodated toward the hole, each supplied a connecting portion to be electrically and mechanically connected to the socket for bulbs a spinneret having the same shape of the bulb, a power supply through a connection portion and a power supply unit for generating the power of the light emitting diode, the outer surface of the device body is projected a plurality of heat radiating fins, characterized in that arranged close to each light emitting diode in each unit body surface.

この発明によれば、器体の放熱フィンによる発光ダイオードの放熱が可能となり、かつ、材料の変更や部品の追加を必要としないから、製造コストを増大させることなく発光ダイオードの放熱性を向上することができる。 According to the present invention enables the heat dissipation of the light emitting diode according to the heat radiation fins of the device body, and does not require additional materials change or components, to improve the heat dissipation of the light emitting diode without increasing the manufacturing cost be able to. また、接続部を電球用の口金と同形状としたことにより、既存の電球用の照明器具に取り付けることができる。 Further, the connection portion by which the mouthpiece and the same shape of the bulb can be attached to the lighting fixture for an existing bulb.

請求項2の発明は、請求項1の発明において、電源部を器体に収納したことを特徴とする。 The invention of claim 2 is the invention of claim 1, wherein the housing a power supply unit to the device body.

この発明によれば、器体によって埃や衝撃から電源部を保護することができる。 According to the present invention, it is possible to protect the power supply unit from dust and impact by the device body.

請求項3の発明は、器体は金属からなり、絶縁材料からなり接続部と器体とにそれぞれ機械的に結合し接続部を器体に保持するとともに接続部と器体とを絶縁する連結体を備えることを特徴とする。 The invention according to claim 3, connecting the device body is made of metal, insulating the connecting portion and the device body with each of the connecting portions and the device body made of insulating material mechanically bonded to hold the connecting portion to the device body characterized in that it comprises a body.

この発明によれば、器体を合成樹脂成形品とする場合に比べて発光ダイオードの放熱性を向上することができる。 According to the invention, it is possible to improve the heat dissipation properties of the light-emitting diode in comparison with the case of the device body and a synthetic resin molded article.

請求項4の発明は、請求項3の発明において、連結体を、器体と電源部との間に介在させたことを特徴とする。 The invention of claim 4 is the invention of claim 3, the connecting member, characterized in that interposed between the vessel body and a power supply unit.

この発明によれば、電源部と器体との間の絶縁性を連結体によって確保することができる。 According to the invention, it is possible to ensure insulation between the power supply unit and the device body by a connecting member.

請求項5の発明は、請求項1乃至4のいずれかの発明において、発光ダイオードはプリント配線板において窓穴の開口側から見て窓穴の開口の周縁部付近に配置され、プリント配線板において窓穴の開口側から見て窓穴の開口の中央寄りの位置に発光部を窓穴へ向けて実装された複数の補助発光ダイオードを備え、電源部は、補助発光ダイオードの発熱量がいずれの発光ダイオードの発熱量よりも小さくなるように各補助発光ダイオードの電源を生成することを特徴とする。 A fifth aspect of the present invention, in any one of the claims 1 to 4, the light emitting diode is disposed as viewed from the opening side of the window holes in the vicinity of the periphery of the opening of the window holes in the printed wiring board, the printed circuit board comprising a window hole plurality of auxiliary light emitting diodes light-emitting portion is mounted toward the window hole in the inboard position of the opening of the window hole as viewed from the opening side of the power supply section, the heating value of the auxiliary light emitting diodes which of and generating the power to each auxiliary light emitting diodes to be smaller than the calorific value of the light emitting diode.

この発明によれば、発光ダイオードが配置されず暗くなる部分を補助発光ダイオードによって補うことができる。 According to the present invention, it is possible to compensate for the portion where the light emitting diode become dark not arranged by the auxiliary light emitting diodes.

請求個6の発明は、請求項1乃至5のいずれかの発明において、発光ダイオードはプリント配線板に実装される端子と同じ側に発光部を有し、プリント配線板には発光ダイオードの発光部を露出させる貫通穴が貫設されていることを特徴とする。 The invention according pieces 6, in the invention of any one of claims 1 to 5, the light emitting diode has a light emitting portion on the same side as the terminal mounted on the printed wiring board, the printed wiring board light emitting portion of the light emitting diode through hole for exposing the is characterized in that it is formed through.

この発明によれば、プリント配線板の非実装面を窓穴に向けることになるから、見栄えを向上することができる。 According to the invention, since thereby directing the non-mounting surface of the printed wiring board in the window hole, it is possible to improve the appearance. また、発光ダイオードにおいて発光部が設けられた面の反対面に放熱用の部材を接触させることによる放熱が可能となる。 Further, heat radiation by contacting the member for heat radiation on the surface opposite to the surface where the light emitting portion is provided in the light emitting diode can be realized.

請求項7の発明は、請求項6の発明において、プリント配線板の貫通穴において発光ダイオードから離れた側の開口を発光ダイオードに近い側の開口よりも広くする傾斜をプリント配線板の貫通穴の内面に設けたことを特徴とする。 The invention of claim 7 is the invention of claim 6, the inclination of the through hole of the printed wiring board wider than the side of the opening close to the light emitting diode openings on the side away from the light emitting diode in the through hole of the printed circuit board characterized in that provided on the inner surface.

この発明によれば、貫通穴の内面で発光ダイオードの光が反射することにより、光の利用効率を向上することができる。 According to the invention, by reflecting light from the light-emitting diodes in the inner surface of the through hole, it is possible to improve the utilization efficiency of light.

請求項8の発明は、請求項1乃至7のいずれか記載の発光ダイオード点灯装置と、接続部が電気的かつ機械的に接続されるソケットと、ソケットと接続部とを通じて電源部に電源を供給する電源手段とを備えることを特徴とする。 The invention of claim 8, supplies a light emitting diode lighting device according to any one of claims 1 to 7, the socket connection portion is electrically and mechanically connected, the power supply to the power unit through a socket and the connecting portion characterized in that it comprises a power supply means for.

本発明によれば、発光ダイオードを器体の内面に近接配置したことにより、器体の放熱フィンによる発光ダイオードの放熱が可能となり、かつ、材料の変更や部品の追加を必要としないから、製造コストを増大させることなく発光ダイオードの放熱性を向上することができる。 According to the present invention, by close arranged light-emitting diodes on the inner surface of the device body, it is possible to heat dissipation of the light emitting diode according to the heat radiation fins of the device body, and does not require additional materials change and parts, production it is possible to improve the heat dissipation of the light emitting diode without increasing the cost. また、接続部を電球用の口金と同形状としたことにより、既存の電球用の照明器具に取り付けることができる。 Further, the connection portion by which the mouthpiece and the same shape of the bulb can be attached to the lighting fixture for an existing bulb.

以下、本発明を実施するための最良の形態について、図面を参照しながら説明する。 Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

本実施形態は、図1(a)(b)に示すように、円形状のプリント配線板2と、プリント配線板2の周縁部に実装された複数(図では6個)の発光ダイオード1と、例えばアルミニウムのような金属からなり窓穴31aを有し発光ダイオード1の発光部を窓穴31aへ向けてプリント配線板2が収納された器体3と、電球用の例えばE17のねじ込形口金(JIS C 7709参照)と同形状に形成された接続部4と、例えば合成樹脂のような絶縁材料からなり器体3と接続部4とを電気的に絶縁するとともに機械的に結合する連結体5と、接続部4を介して電球用のソケットから電源を供給され発光ダイオード1の電源を生成する電源回路が上記のプリント配線板2とは別のプリント配線板に実装されてなる電源部6とを備える。 This embodiment, as shown in FIG. 1 (a) (b), a circular printed wiring board 2, a light emitting diode of the plurality mounted to the peripheral edge portion of the printed circuit board 2 (six in the drawing) , for example, a metal having a window hole 31a toward the light emitting portion of the light emitting diode 1 to the window hole 31a printed wiring board 2 device body 3, which is accommodated such as aluminum, threaded type for example E17 for bulbs mechanically connected to coupling with the cap (JIS C 7709 reference) and the connecting portion 4 formed in the same shape, electrically insulating the connecting portion 4 for example, would device body 3 of insulating material such as synthetic resin the body 5 is supplied with power from a socket for bulbs via the connection 4 light emitting diode power unit made by mounting on another printed wiring board power supply circuit for generating a power of 1 is the printed wiring board 2 of the and a 6. 電源部6と接続部4及びプリント配線板2とはそれぞれ電線C1,C2を介して電気的に接続されている。 Are electrically connected to the power supply unit 6 and the connecting portion 4 and the printed wiring board 2 via the wires C1, C2. 以下、方向は図1(a)を基準として説明する。 Hereinafter, the direction will be described FIG. 1 (a) as a reference.

器体3は、窓穴31aを有する扁平な有底円筒形状に形成された頭部31と、頭部31の底面の中央部に連通する円筒形状に形成された胴部32とからなる。 Device body 3 is composed of a head 31 formed into a flat bottomed cylindrical shape having a window hole 31a, the body portion 32 is formed in a cylindrical shape communicating with the central portion of the bottom surface of the head 31.. 頭部31の外周面には、図2に示すように、それぞれ上下に長い多数の放熱フィン33が頭部31の周方向に沿って等間隔に突設されている。 The outer peripheral surface of the head 31, as shown in FIG. 2, are projected at equal intervals long number of radiation fins 33 vertically respectively along the circumferential direction of the head 31. また、胴部32の外周面の上端部には、それぞれ上端部が頭部31の底面に連結され三角形状に形成された複数の放熱フィン34が胴部32の周方向に沿って等間隔に突設されている。 Further, the upper end portion of the outer peripheral surface of the body 32, at regular intervals a plurality of radiating fins 34 formed in a triangular shape, respectively upper ends connected to the bottom surface of the head portion 31 along the circumferential direction of the body portion 32 It is projected. また、窓穴31aは、透光性を有する材料からなり窓穴31aに嵌合した窓体7で閉塞されている。 Further, window holes 31a are closed by Madotai 7 fitted to the window hole 31a of a material having translucency.

連結体5は、円筒形状に形成され、上端部が器体3の胴部32に嵌合するとともに、下端部には接続部4が嵌合している。 Connecting body 5 is formed in a cylindrical shape, with an upper end portion is fitted to the trunk portion 32 of the device body 3, the connecting portion 4 is fitted in the lower end. 電源部6は、連結体5に囲まれた位置に配置され、器体3の胴部32によって保護されるとともに、連結体5によって器体3との間の絶縁が確保されている。 Power source unit 6 is arranged is surrounded by the connecting body 5 position, while being protected by the trunk portion 32 of the device body 3, insulation between the device body 3 by the coupling member 5 is secured. ここで、本実施形態の全体の寸法は、既存の白熱電球が占めていたスペースに収まる程度としてある。 Here, the overall dimensions of this embodiment is as enough to fit in the space existing incandescent light bulbs accounted.

発光ダイオード1は、アルミニウム製のパッケージに収納され、プリント配線板2への面実装のための端子と発光部1a(図3参照)とを同じ側に有する。 Light-emitting diode 1 is housed in an aluminum package, having a terminal for surface mounting on a printed wiring board 2 and the light emitting portion 1a (see FIG. 3) on the same side. プリント配線板2には発光ダイオード1の発光部1aを露出させる貫通穴21が貫設され、プリント配線板2は、発光ダイオード1の発光部1aを上方へ向けて器体3の頭部31に収納されている。 The printed wiring board 2 through hole 21 for exposing the light-emitting portion 1a of the light emitting diode 1 is formed through the printed wiring board 2, the head 31 of the device body 3 toward the light emitting portion 1a of the light emitting diode 1 upward It is housed. この構成により、プリント配線板2の非実装面を窓穴31aに向けることになるから、見栄えを向上することができる。 This configuration, since thereby directing the non-mounting surface of the printed wiring board 2 in the window hole 31a, it is possible to improve the appearance. また、プリント配線板2の直径は器体3の頭部31の内径よりも僅かに小さくしてあり、発光ダイオード1は器体3の内面に近接する。 The diameter of the printed wiring board 2 Yes slightly smaller than the inner diameter of the head 31 of the device body 3, the light emitting diode 1 is close to the inner surface of Utsuwatai 3. さらに、窓体7において、発光ダイオード1の上側には、発光ダイオード1の光を配光するレンズ部71が設けられている。 Further, in Madotai 7, on the upper side of the light emitting diode 1, the lens unit 71 to light distribution of the light emitting diodes 1 are provided.

また、貫通穴21の内面には、図3に示すように発光ダイオード1から離れた上側の開口を下側の開口よりも大きくする傾斜が設けられている。 Further, the inner surface of the through hole 21, the inclination is provided to be larger than the lower opening of the upper opening away from the light emitting diode 1 as shown in FIG. この構成により、発光ダイオード1の光を矢印で示すように反射させて光の利用効率を向上することができる。 This configuration, light from the light emitting diode 1 is reflected as indicated by an arrow can be improved light utilization efficiency. この効果を高めるためには、プリント配線板2の材料として反射率の高い材料を用いることが望ましい。 To enhance this effect, it is desirable to use a material having high reflectivity as a material of the printed circuit board 2. 又は、プリント配線板2の材料として例えばガラスエポキシ樹脂を用い、貫通穴21の内面に金属めっきを施してもよい。 Or, used for example as a glass epoxy resin material of the printed wiring board 2 may be subjected to metal plating on the inner surface of the through hole 21.

また、発光ダイオード1は、例えばシリコンシートやシリコングリスのような熱伝導率の高い絶縁材料からなる伝熱体8を介して器体3の頭部31の底面に熱的に接続されている。 Further, the light emitting diode 1 is thermally connected to, for example, a silicon sheet or the bottom surface of the head portion 31 of the heat conductor 8 via the device body 3 made of a high dielectric material having a thermal conductivity, such as silicon grease. この構成により、発光ダイオード1の放熱性を向上している。 This configuration has improved heat dissipation of the light emitting diode 1. また、静電気や雷による器体3からの放電で発光ダイオード1が破壊されることを伝熱体8によって防止している。 Further, the light emitting diode 1 at the discharge from the device body 3 due to static electricity or lightning is prevented by the heat transfer body 8 to be destroyed. さらに、図4に示すように発光ダイオード1と伝熱体8との間に、胴部32の上端部に跨った第2の伝熱体9を追加してもよい。 Further, between the light emitting diode 1 and the heat transfer body 8, as shown in FIG. 4, may be added a second heat transfer body 9 extending over the upper end of the barrel 32. この構成を採用すれば、放熱の面積が増大するから、さらに放熱性が向上する。 With this structure, since the area of ​​heat radiation is increased, further heat dissipation is improved.

上記構成によれば、発光ダイオード1を器体3の内面に近接させて配置したことにより、器体3の放熱フィン33,34を介した発光ダイオード1の放熱が可能となるから、発光ダイオード1の放熱性が向上する。 According to the above configuration, the light emitting diode 1 by disposing in proximity to the inner surface of Utsuwatai 3, since the heat dissipation of the light emitting diode 1 can be via the radiation fins 33, 34 of the device body 3, the light emitting diode 1 to improve the heat dissipation. したがって、発光ダイオード1の光出力を維持しながらも消費電力を低減することや、消費電力を維持しながらも発光ダイオード1の光出力を向上することができる。 Therefore, it is possible also and to reduce power consumption while maintaining the light output of the light emitting diode 1, which while maintaining the power to improve the light output of the light emitting diode 1. また、プリント配線板2を合成樹脂製とすれば、プリント配線板2を金属製とする従来例と違って製造コストを増大させることなく発光ダイオード1の放熱性を向上することができ、プリント配線板2を金属製とすれば、従来例に比してさらに発光ダイオード1の放熱性が向上する。 Also, if the printed wiring board 2 made of a synthetic resin, a printed wiring board 2 can improve heat dissipation of the light emitting diode 1 without increasing the manufacturing cost unlike the conventional example which is made of metal, the printed wiring if the plate 2 is made of metal, further heat dissipation of the light emitting diode 1 is improved as compared with the conventional example. ここで、器体3の形状については、器体3の胴部32の外径を可能な限り小さくする一方で放熱フィン34を可能な限り大きくし器体3の表面積を大きくすることが、放熱性の向上のためには望ましい。 Here, the shape of the device body 3, is possible to increase the one surface of the heat radiation fins 34 as large as possible a device body 3 in the smallest possible outer diameter of the device body 3 of the body portion 32, heat radiation for sex improve desirable.

また、接続部4を電球の口金と同形状としたことにより、本実施形態は電球用のソケットを備えた既存の室内用の照明器具や卓上用の照明器具に用いることができる。 Further, by the connecting portion 4 and the mouthpiece and the same shape of the bulb, the present embodiment can be used for the lighting fixture for lighting fixtures and desk for existing room having a socket for bulbs. ここで、ソケットと接続部4とを通じて電源部5に電源を供給する電源手段は、例えば電池や、家庭用コンセントに接続されるプラグである。 Here, power supply means for supplying power to the power supply unit 5 through the connecting portion 4 and the socket, for example, a battery, a plug connected to a household outlet.

なお、接続部4はねじ込形口金の形状に限られず、図5(a)に示すようにピン形口金の形状や図5(b)に示すように差込形口金の形状であってもよい(JIS C 7709参照)。 The connecting portion 4 is not limited to the shape of the threaded type cap, be in the form of a plug-type cap as shown in shape or figure pin-shaped mouthpiece 5 (b), as shown in FIG. 5 (a) good (see JIS C 7709).

また、器体3の材料は必ずしも金属でなくともよい。 Further, the material of the device body 3 may not necessarily be metal. 例えば、器体3の材料としてセラミックを用いれば、放熱性を維持しながらも、器体3と接続部4との絶縁が不要となるから、接続部4を器体3に直接結合させて連結体5を不要とし、部品点数を減少させることができる。 For example, if a ceramic as the material of the device body 3, while maintaining the heat dissipation, because the insulation between the connecting part 4 and the device body 3 is not required, the connection 4 is directly bonded to Utsuwatai 3 linked the body 5 is not necessary, it is possible to reduce the number of parts.

また、発光ダイオード1は、図6に示すように、プリント配線板2に実装される端子を発光部の反対面に有するものであってもよい。 Further, the light emitting diode 1, as shown in FIG. 6, a terminal mounted on the printed wiring board 2 may have the opposite surface of the light emitting portion. この場合、窓体7を発光ダイオード1に接触させ、窓体7を介した発光ダイオード1の放熱が可能となる。 In this case, by contacting the Madotai 7 to the light emitting diode 1, it is possible to heat dissipation of the light emitting diodes 1 through Madotai 7. また、発光ダイオード1は、アルミニウム製のパッケージを有さないものであってもよいが、熱伝導率の高い材料からなるパッケージを有するものを用いた方が、放熱性を向上するためには望ましい。 Further, the light emitting diode 1 may be one having no aluminum packages, preferable to use those having a package comprising a high thermal conductivity material is desirable in order to improve heat dissipation .

さらに、図7に示すように、プリント配線板2において前方から見て発光ダイオード1よりも内側となる位置に、複数個(図では4個)の補助発光ダイオード10を実装してもよい。 Furthermore, as shown in FIG. 7, the inner a position than the light emitting diode 1 as viewed from the front in the printed wiring board 2, (in the figure four) plurality may implement an auxiliary light emitting diode 10. 例えば、発光ダイオード1と補助発光ダイオード10とを互いに同心円上に配置する。 For example, placing a light emitting diode 1 and the auxiliary light-emitting diode 10 on a concentric circle with each other. 内側に配置される補助発光ダイオード10としては、外側に配置される発光ダイオード1とは異なる種類の発光ダイオードを用いてもよい。 The auxiliary light emitting diodes 10 arranged inside, may use different types of light emitting diodes and light emitting diodes 1 arranged outside. ここで、発光ダイオード1よりも器体3の内面から離して配置された補助発光ダイオード10の放熱性が発光ダイオード1よりも低いことを考慮し、電源部6は、補助発光ダイオード10の発熱量が発光ダイオード1の発熱量よりも小さくなる程度の電力を補助発光ダイオード10に供給するようにしてある。 Here, considering that the heat dissipation properties of the light-emitting diodes auxiliary light emitting diode 10 which is positioned away from the inner surface of the device body 3 than 1 is lower than the light emitting diode 1, the power supply unit 6, the heating value of the auxiliary light emitting diode 10 There are so as to supply power of the order of smaller than the calorific value of the light emitting diode 1 to the auxiliary light-emitting diode 10. 例えば、発光ダイオード1と補助発光ダイオード10とに同じ種類の発光ダイオードを用いた場合には、電源部6は、発光ダイオード1に供給する電力よりも少ない電力を補助発光ダイオード10に供給する。 For example, in the case of using the light emitting diode 1 and the auxiliary light-emitting diode 10 and the same type of light-emitting diodes, the power source unit 6 supplies less power than the power supplied to the light emitting diode 1 to the auxiliary light-emitting diode 10. この構成によれば、発光ダイオード1が配置されていないために暗くなる窓穴31aの中央部を、補助発光ダイオード10によって補うことができる。 According to this configuration, the central portion of the darkened window hole 31a to the light emitting diode 1 is not disposed, can be compensated by the auxiliary light emitting diode 10.

本実施形態を示す図であり、(a)は断面図、(b)はプリント配線板を示す下面図である。 Is a diagram showing the present embodiment, (a) shows the cross sectional view, a bottom view showing a (b) is a printed wiring board. 同上を示す斜視図である。 Is a perspective view showing the same. 同上の要部を示す断面図である。 It is a cross-sectional view showing the main portion of the same. 同上の別の形態を示す断面図である。 It is a sectional view showing another form of the same. 同上の更に別の形態の要部を示す正面図であり、(a)(b)は互いに異なる形態を示す。 A front view showing a main part of another form of the same, showing a different form (a) (b) each other. 同上の別の形態を示す断面図である。 It is a sectional view showing another form of the same. 同上の別の形態におけるプリント配線板を示す下面図である。 Is a bottom view showing the printed wiring board in another embodiment; FIG.

符号の説明 DESCRIPTION OF SYMBOLS

1 発光ダイオード 1a 発光部 2 プリント配線板 3 器体 4 接続部 5 連結体 6 電源部 10 補助発光ダイオード 21 貫通穴 31a 窓穴 33,34 放熱フィン 1-emitting diode 1a emitting portion 2 printed circuit board 3 device body 4 connecting portion 5 connecting body 6 power unit 10 the auxiliary light emitting diode 21 through hole 31a window hole 33, 34 heat dissipating fins

Claims (8)

  1. 複数個の発光ダイオードと、各発光ダイオードがそれぞれ実装されたプリント配線板と、各発光ダイオードの光がそれぞれ通過する窓穴を有し各発光ダイオードの発光部をそれぞれ窓穴へ向けてプリント配線板が収納された器体と、電球の口金と同形状であって電球用のソケットに電気的かつ機械的に接続される接続部と、接続部を通じて電源を供給され各発光ダイオードの電源を生成する電源部とを備え、 A plurality of light emitting diodes, and the printed wiring board to the light emitting diodes are mounted respectively, a printed circuit board toward the light emitting portion of the light-emitting diodes have a window hole through which light passes each of the light emitting diodes to the respective window holes generating but the housing has been the device body, and a connecting portion for a ferrule and the same shape of the bulb is electrically and mechanically connected to a socket for bulbs, the power of each light emitting diode is supplied with power through a connection unit and a power supply unit,
    器体の外面には複数の放熱フィンが突設され、 A plurality of heat radiating fins are protruded on the outer surface of the device body,
    各発光ダイオードをそれぞれ器体内面に近接配置したことを特徴とする発光ダイオード点灯装置。 Light emitting diode lighting device, characterized in that the light emitting diode disposed close to each unit body surface.
  2. 電源部を器体に収納したことを特徴とする請求項1記載の発光ダイオード点灯装置。 Light emitting diode lighting device according to claim 1, characterized in that the power unit housed in the device body.
  3. 器体は金属からなり、絶縁材料からなり接続部と器体とにそれぞれ機械的に結合し接続部を器体に保持するとともに接続部と器体とを絶縁する連結体を備えることを特徴とする請求項1又は請求項2記載の発光ダイオード点灯装置。 Device body is made of metal, and further comprising a connecting member for insulating the connection portion and device body together with the respective connecting section and the device body made of insulating material mechanically bonded to hold the connecting portion to the device body light emitting diode lighting device according to claim 1 or claim 2, wherein.
  4. 連結体を電源部と器体との間に介在させたことを特徴とする請求項3記載の発光ダイオード点灯装置。 Light emitting diode lighting device according to claim 3, characterized in that interposed between the connection of the power supply unit and the device body.
  5. 発光ダイオードはプリント配線板において窓穴の開口側から見て窓穴の開口の周縁部付近である位置に実装され、プリント配線板において窓穴の開口側から見て発光ダイオードよりも窓穴の開口の中央寄りである位置に実装された複数の補助発光ダイオードを備え、電源部は、補助発光ダイオードの発熱量がいずれの発光ダイオードの発熱量よりも小さくなるように各補助発光ダイオードの電源を生成することを特徴とする請求項1乃至4のいずれか記載の発光ダイオード点灯装置。 Emitting diode is mounted in a position which is near the periphery of the opening of the window hole as viewed from the opening side of the window holes in the printed circuit board, the opening of the window hole than the light emitting diode when viewed from the opening side of the window holes in the printed circuit board of comprising a plurality of auxiliary light emitting diodes mounted in a position which is closer to the center, the power supply unit generates a power supply for the auxiliary light emitting diodes as the heating value is less than the heating value of any light emitting diode of the auxiliary light emitting diodes light emitting diode lighting device according to any one of claims 1 to 4, characterized in that.
  6. 発光ダイオードはプリント配線板に実装される端子と同じ側に発光部を有し、プリント配線板には発光ダイオードの発光部を露出させる貫通穴が貫設されていることを特徴とする請求項1乃至5のいずれか記載の発光ダイオード点灯装置。 Light-emitting diode has a light emitting portion on the same side as the terminal mounted on the printed wiring board, according to claim 1, the printed wiring board, characterized in that the through hole for exposing the light-emitting portion of the light emitting diode is disposed through or light-emitting diode lighting device according to any one of 5.
  7. プリント配線板の貫通穴において発光ダイオードから離れた側の開口を発光ダイオードに近い側の開口よりも広くする傾斜をプリント配線板の貫通穴の内面に設けたことを特徴とする請求項6記載の発光ダイオード点灯装置。 According to claim 6, characterized in that a slope of larger than the side of the opening close to the side opening of the light-emitting diode remote from the light emitting diode in the through hole of the printed wiring board to the inner surface of the through hole of the printed circuit board light emitting diode lighting device.
  8. 請求項1乃至7のいずれか記載の発光ダイオード点灯装置と、接続部が電気的かつ機械的に接続されるソケットと、ソケットと接続部とを通じて電源部に電源を供給する電源手段とを備えることを特徴とする照明器具。 Further comprising a light-emitting diode lighting device according to any one of claims 1 to 7, the socket connection portion is electrically and mechanically connected, and power supply means for supplying power to the power unit through a socket and the connecting portion luminaire characterized by.
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