JP2011165351A - Led lighting device - Google Patents

Led lighting device Download PDF

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Publication number
JP2011165351A
JP2011165351A JP2010023600A JP2010023600A JP2011165351A JP 2011165351 A JP2011165351 A JP 2011165351A JP 2010023600 A JP2010023600 A JP 2010023600A JP 2010023600 A JP2010023600 A JP 2010023600A JP 2011165351 A JP2011165351 A JP 2011165351A
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Prior art keywords
led
air
housing
lens
lighting device
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Japanese (ja)
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Yukio Okamura
幸雄 岡村
Kenji Nemoto
賢二 根本
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OKAMURA DENSAN KK
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OKAMURA DENSAN KK
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Priority to JP2010023600A priority Critical patent/JP2011165351A/en
Priority to PCT/JP2010/057426 priority patent/WO2011096096A1/en
Publication of JP2011165351A publication Critical patent/JP2011165351A/en
Pending 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F21V29/677—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for discharging
    • 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)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED lighting device which can efficiently cool an LED element. <P>SOLUTION: The LED lighting device 1 includes: a case 2; a lens 11, which is arranged inside the case, and has a recession 11b into which LED elements 7 are housed; a fan 9, which is arranged in the case on a side to which the lens is attached, and cools the LED elements; an air intake path 10, which is arranged inside the case, and guides air to the fan from outside the case; an air channel 13, which is arranged inside the case, and flows air from the fan to the LED elements; and an air exhaust port, which is arranged inside the case, and exhausts air passing through the LED elements outside the case. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明はＬＥＤ照明装置に関する。   The present invention relates to an LED lighting device.

ＬＥＤ（Light Emitting Diode）は、電流を流すと発光する半導体素子の一種である。ＬＥＤには、アノードとカソードの２つの端子がある。アノードに正の電圧を、カソードに負の電圧をかけると、数ボルトの電圧で電流が流れてＬＥＤが発光する。ＬＥＤの発光色として赤、緑、オレンジ、青などがある。ＬＥＤの用途は、フルカラーの表示装置や照明、光ディスク装置のヘッドなど広範囲に及ぶ。なかでも、ＬＥＤを用いた照明装置は、白熱電球や蛍光灯といった従来の照明に比べて電力消費量が少なく、製品寿命も長いという利点を持っている。   An LED (Light Emitting Diode) is a type of semiconductor element that emits light when an electric current is applied. An LED has two terminals, an anode and a cathode. When a positive voltage is applied to the anode and a negative voltage is applied to the cathode, a current flows at a voltage of several volts and the LED emits light. There are red, green, orange, blue, and the like as light emission colors of LEDs. The applications of LEDs are wide-ranging, such as full-color display devices, lighting, and heads of optical disk devices. Especially, the illuminating device using LED has the advantage that there is little power consumption and long product life compared with the conventional illuminations, such as an incandescent lamp and a fluorescent lamp.

従来のＬＥＤ照明装置として、特許文献１のようなものが挙げられる。特許文献１に記載のＬＥＤ照明装置においては、ＬＥＤ素子から発生した熱を放熱するためのフィンが、ＬＥＤ素子を配置した基板の裏側に設けられている。   As a conventional LED lighting device, a device as disclosed in Patent Document 1 can be cited. In the LED lighting device described in Patent Document 1, fins for dissipating heat generated from the LED elements are provided on the back side of the substrate on which the LED elements are arranged.

特開２００７−０４２７５５号公報JP 2007-042755 A

上述したように、従来のＬＥＤ照明装置は、ＬＥＤ素子から発生した熱を放熱するためのフィンを有している。しかし、フィンを用いた放熱の効果は不十分であり、十分な効果を得ようとするとフィンの大型化を招く。   As described above, the conventional LED lighting device has fins for radiating heat generated from the LED elements. However, the effect of heat dissipation using the fins is insufficient, and an attempt to obtain a sufficient effect leads to an increase in the size of the fins.

本発明は、上記の問題点に鑑み、ＬＥＤ素子を効率良く冷却することのできるＬＥＤ照明装置を提供することを目的とする。   An object of this invention is to provide the LED illuminating device which can cool an LED element efficiently in view of said problem.

上記目的を達成するため、本発明に係るＬＥＤ照明装置は、筐体と、前記筐体内に設けられ、ＬＥＤ素子を収納する凹部を備えたレンズと、前記筐体内において、前記レンズの取付面側に設けられた、前記ＬＥＤ素子を冷却するファンと、前記筐体内に設けられ、前記筐体の外部から前記ファンへ空気を導入する空気導入路と、前記筐体内に設けられ、前記ファンから前記ＬＥＤ素子へ空気を流す空気流路と、前記筐体に設けられ、前記ＬＥＤ素子を通った空気を前記筐体の外部へ排出する空気排出口とを備えている。   In order to achieve the above object, an LED lighting device according to the present invention includes a housing, a lens provided in the housing and provided with a recess for housing the LED element, and a mounting surface side of the lens in the housing. A fan that cools the LED element, and an air introduction path that is provided in the housing and introduces air from the outside of the housing to the fan. An air flow path for flowing air to the LED element, and an air discharge port provided in the casing and for discharging the air passing through the LED element to the outside of the casing.

ＬＥＤ照明装置の別の形態によれば、前記空気排出口が、前記ＬＥＤ素子を配置した基板の周囲に設けられている。   According to another form of the LED illumination device, the air outlet is provided around a substrate on which the LED elements are arranged.

ＬＥＤ照明装置の別の形態によれば、前記レンズの投光面側に設けられたフィルタをさらに備えている。   According to another form of the LED illumination device, the LED illumination device further includes a filter provided on the light projecting surface side of the lens.

ＬＥＤ照明装置の別の形態によれば、前記レンズの外周部を覆うように設けられたフードをさらに備えている。   According to another form of the LED illumination device, the LED illumination device further includes a hood provided so as to cover the outer peripheral portion of the lens.

本発明に係るＬＥＤ照明装置は、筐体と、前記筐体内に設けられ、ＬＥＤ素子を収納する凹部を備えたレンズと、前記筐体内において、前記レンズの取付面側に設けられた、前記ＬＥＤ素子を冷却するファンと、前記筐体内に設けられ、前記筐体の外部から前記ファンへ空気を導入する空気導入路と、前記筐体内に設けられ、前記ファンから前記ＬＥＤ素子へ空気を流す空気流路と、前記筐体に設けられ、前記ＬＥＤ素子を通った空気を前記筐体の外部へ排出する空気排出口とを備えている。このようなＬＥＤ照明装置の構成によれば、筐体外部から筐体内のＬＥＤ素子を通って筐体外部へと向かう空気の流れが生まれるため、筐体内のＬＥＤ素子から発生した熱を筐体の外部へ効率良く排出することができる。   The LED lighting device according to the present invention includes a housing, a lens provided in the housing and provided with a recess for housing the LED element, and the LED provided on the lens mounting surface side in the housing. A fan that cools the element, an air introduction path that is provided in the casing and introduces air from the outside of the casing to the fan, and an air that is provided in the casing and flows air from the fan to the LED element A flow path and an air outlet provided in the casing and exhausting the air that has passed through the LED element to the outside of the casing are provided. According to such a configuration of the LED lighting device, an air flow is generated from the outside of the housing through the LED elements in the housing to the outside of the housing, so that the heat generated from the LED elements in the housing is It can be discharged efficiently to the outside.

ＬＥＤ照明装置の別の形態によれば、前記空気排出口が、前記ＬＥＤ素子を配置した基板の周囲に設けられている。そのため、ＬＥＤ素子から発生した熱を奪った空気が、迅速かつ確実にＬＥＤ照明装置の外へ排出される。   According to another form of the LED illumination device, the air outlet is provided around a substrate on which the LED elements are arranged. For this reason, the air deprived of heat generated from the LED elements is quickly and reliably discharged out of the LED lighting device.

ＬＥＤ照明装置の別の形態によれば、前記レンズの投光面側に設けられたフィルタをさらに備えている。このフィルタは、ＬＥＤ素子から発せられてレンズの投光面を通った光のうち、ある波長域の光を選択的に透過させ、その他の波長域の光を反射させることができるため、ＬＥＤ照明装置の用途に合わせて光の色を調節することができる。   According to another form of the LED illumination device, the LED illumination device further includes a filter provided on the light projecting surface side of the lens. This filter can selectively transmit light in a certain wavelength region and reflect light in other wavelength regions out of the light emitted from the LED element and passing through the light projection surface of the lens. The color of light can be adjusted according to the application of the apparatus.

ＬＥＤ照明装置の別の形態によれば、前記レンズの外周部を覆うように設けられたフードをさらに備えている。そのため、ＬＥＤ素子から発せられてレンズの外周部を通った光はフードにより遮られ、結果として所望の領域にのみ光を照射することができる。   According to another form of the LED illumination device, the LED illumination device further includes a hood provided so as to cover the outer peripheral portion of the lens. Therefore, the light emitted from the LED element and passing through the outer periphery of the lens is blocked by the hood, and as a result, only a desired region can be irradiated with light.

ＬＥＤ照明装置の正面図である。It is a front view of an LED lighting device. 図１に示したＬＥＤ照明装置の側面図である。It is a side view of the LED lighting apparatus shown in FIG. 図１に示したＬＥＤ照明装置の平面図である。It is a top view of the LED lighting apparatus shown in FIG. 図３に示したＬＥＤ照明装置のＡ−Ａ線断面図である。It is the sectional view on the AA line of the LED lighting apparatus shown in FIG. 図３に示したＬＥＤ照明装置のＢ−Ｂ線断面図である。It is the BB sectional view taken on the line of the LED illuminating device shown in FIG. 図１に示したＬＥＤ照明装置の底面図である。It is a bottom view of the LED lighting apparatus shown in FIG.

以下、本発明の実施の形態について図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、ＬＥＤ照明装置１の正面図である。図２は、ＬＥＤ照明装置１の側面図である。図３は、ＬＥＤ照明装置１の平面図である。図４は、図３に示したＬＥＤ照明装置１のＡ−Ａ線断面図である。図５は、図３に示したＬＥＤ照明装置１のＢ−Ｂ線断面図である。図６は、ＬＥＤ照明装置１の底面図である。   FIG. 1 is a front view of the LED lighting device 1. FIG. 2 is a side view of the LED lighting device 1. FIG. 3 is a plan view of the LED lighting device 1. FIG. 4 is a cross-sectional view of the LED lighting device 1 shown in FIG. FIG. 5 is a cross-sectional view of the LED lighting device 1 shown in FIG. FIG. 6 is a bottom view of the LED lighting device 1.

図１に示したように、ＬＥＤ照明装置１は筐体２を有している。筐体２は、略円筒形状のリヤカバー２ａと、略リング形状のフロントカバー２ｂと、アーム２ｃとからなる。そして、リヤカバー２ａとフロントカバー２ｂとは、アーム２ｃにより固定されている。筐体２は、アルミダイキャストにより一体型として製造されたものである。   As shown in FIG. 1, the LED lighting device 1 has a housing 2. The housing 2 includes a substantially cylindrical rear cover 2a, a substantially ring-shaped front cover 2b, and an arm 2c. The rear cover 2a and the front cover 2b are fixed by an arm 2c. The housing 2 is manufactured as an integral type by aluminum die casting.

リヤカバー２ａとフロントカバー２ｂとの間には、略円錐台形状のフード３が設けられている。このフード３の内側には、レンズ１１が配置されている。   A substantially frustoconical hood 3 is provided between the rear cover 2a and the front cover 2b. A lens 11 is disposed inside the hood 3.

図２に示したように、筐体２のリヤカバー２ａの側面上方には、略矩形の空気導入口４が複数個設けられている。   As shown in FIG. 2, a plurality of substantially rectangular air inlets 4 are provided above the side surface of the rear cover 2 a of the housing 2.

図３に示したように、筐体２のリヤカバー２ａの上端面には、空気導入口５が左右対称に同じ数ずつ複数個設けられている。各空気導入口５は、いずれも略矩形であるが、大きさは異なっている。   As shown in FIG. 3, the same number of air inlets 5 are provided on the upper end surface of the rear cover 2a of the housing 2 in the left-right symmetry. Each of the air inlets 5 is substantially rectangular but has a different size.

図４、図５に示したように、リヤカバー２ａの内部には、リヤカバー２ａの径方向に延びている支持壁１６が設けられている。   As shown in FIGS. 4 and 5, a support wall 16 extending in the radial direction of the rear cover 2a is provided inside the rear cover 2a.

支持壁１６の上部には、ファンモーターを内蔵したファン９が設けられている。また、リヤカバー２ａの内部において、ファン９の上部には空気導入路１０が設けられている。空気導入路１０は、空気導入口４及び空気導入口５と連通している。   A fan 9 incorporating a fan motor is provided on the upper portion of the support wall 16. In addition, an air introduction path 10 is provided above the fan 9 inside the rear cover 2a. The air introduction path 10 communicates with the air introduction port 4 and the air introduction port 5.

支持壁１６の投光面側には、六角形の形状をした基板６が設けられている。基板６の投光面側には、ＬＥＤ素子７が配置されている。   A hexagonal substrate 6 is provided on the light projecting surface side of the support wall 16. An LED element 7 is disposed on the light projecting surface side of the substrate 6.

また、ファン９とＬＥＤ素子７を配置した基板６との間には、リヤカバー２ａの上下方向に延びている複数の空気流路１３が設けられている。   A plurality of air flow paths 13 extending in the vertical direction of the rear cover 2a are provided between the fan 9 and the substrate 6 on which the LED elements 7 are arranged.

基板６の下部には、円錐台形状のレンズ１１が設けられている。レンズ１１には、レンズの外方に向かって突出した係止部１１ａが設けられている。さらに、レンズ１１は、第一の凹部１１ｂと第二の凹部１１ｃと投光面１１ｄを有している。第二の凹部１１ｃは、底部１１ｅと内周壁１１ｆとを有している。   A truncated cone-shaped lens 11 is provided below the substrate 6. The lens 11 is provided with a locking portion 11a that protrudes outward from the lens. Furthermore, the lens 11 has a first recess 11b, a second recess 11c, and a light projecting surface 11d. The second recess 11c has a bottom 11e and an inner peripheral wall 11f.

レンズ１１は、係止部１１ａを筐体２に設けられた切り欠き１４に嵌合することにより、筐体２内で固定されている。そして、第一の凹部１１ｂには、基板６に配置されたＬＥＤ素子７が収納されている。   The lens 11 is fixed in the housing 2 by fitting the locking portion 11 a into a notch 14 provided in the housing 2. The LED element 7 disposed on the substrate 6 is accommodated in the first recess 11b.

レンズ１１の外周部１５を覆うように、上述のフード３が設けられている。   The above-described hood 3 is provided so as to cover the outer peripheral portion 15 of the lens 11.

レンズ１１の投光面１１ｄ側には、ある波長域の光を選択的に透過させ、その他の波長域の光を反射させるフィルタ１２が設けられている。   A filter 12 that selectively transmits light in a certain wavelength region and reflects light in other wavelength regions is provided on the light projecting surface 11 d side of the lens 11.

図６においては、図を分かり易くするために、フード３及びフード３内のレンズ１１は図示していない。支持壁１６は、開口と、その開口の径方向に延びた三つのフレームとを有している。三つのフレームは開口の中央で交差するように設けられている。これらの三つのフレームに基板６を配置することにより、空気排出口８が形成されることになる。基板６には、３個のＬＥＤ素子７が周方向にほぼ等しい間隔をおいて配置されている。ＬＥＤ素子７は１個あたり１０ワットである。   In FIG. 6, the hood 3 and the lens 11 in the hood 3 are not shown for easy understanding of the drawing. The support wall 16 has an opening and three frames extending in the radial direction of the opening. The three frames are provided so as to intersect at the center of the opening. By disposing the substrate 6 on these three frames, the air discharge port 8 is formed. Three LED elements 7 are arranged on the substrate 6 at substantially equal intervals in the circumferential direction. One LED element 7 is 10 watts.

上記のような構成のＬＥＤ照明装置１における光の進行について説明する。ＬＥＤ素子７は、図示しない外部電源から電力の供給を受けて発光する。ＬＥＤ素子７から発せられた光は、レンズ１１内を進む。レンズ１１内を進んでレンズ１１の外へ向かう光のうち、投光面１１ｄ、底部１１ｅ、内周壁１１ｆを通った光は、フィルタ１２へ入射する。そして、フィルタ１２の特性により定まる、ある波長域の光はフィルタ１２を透過し、被照射面に照射される一方、その他の波長域の光はフィルタ１２によって反射する。これにより、ＬＥＤ照明装置１の用途に合わせて光の色を調節することができる。また、レンズ１１の外周部１５を通りレンズ１１の外へ出た光は、フード３により遮られる。   The progress of light in the LED lighting device 1 configured as described above will be described. The LED element 7 emits light upon receiving power from an external power source (not shown). The light emitted from the LED element 7 travels through the lens 11. Of the light traveling inside the lens 11 and going out of the lens 11, the light passing through the light projecting surface 11 d, the bottom 11 e, and the inner peripheral wall 11 f is incident on the filter 12. Then, light in a certain wavelength range determined by the characteristics of the filter 12 passes through the filter 12 and is irradiated on the irradiated surface, while light in other wavelength ranges is reflected by the filter 12. Thereby, the color of light can be adjusted according to the use of the LED lighting apparatus 1. Further, light that passes through the outer peripheral portion 15 of the lens 11 and goes out of the lens 11 is blocked by the hood 3.

上記のような構成のＬＥＤ照明装置１における空気の流れについて説明する。ファン９内のファンモーターは、図示しない電源から電力の供給を受けて回転する。すると、ファン９が回転し、空気導入口４及び空気導入口５から空気導入路１０へ空気が流れ込む。空気導入路１０へと導入された空気は、ファン９を通り、空気流路１３へと流れ込む。空気流路１３を出た空気は、基板６に配置されたＬＥＤ素子７を通る。この空気は、点灯しているＬＥＤ素子７から発せられた熱を奪う。そして、ＬＥＤ素子７から発せられた熱を奪った空気は、空気排出口８から筐体２外部へと排出される。   The flow of air in the LED lighting device 1 configured as described above will be described. The fan motor in the fan 9 rotates upon receiving power from a power source (not shown). Then, the fan 9 rotates and air flows into the air introduction path 10 from the air introduction port 4 and the air introduction port 5. The air introduced into the air introduction path 10 passes through the fan 9 and flows into the air flow path 13. The air that exits the air flow path 13 passes through the LED elements 7 disposed on the substrate 6. This air takes away heat generated from the LED element 7 that is lit. Then, the air deprived of heat generated from the LED element 7 is discharged from the air discharge port 8 to the outside of the housing 2.

上述したように、ＬＥＤ照明装置１は、ファン９と空気導入路１０と空気流路１３と空気排出口８とを備えている。そのため、ＬＥＤ素子７を効率的に冷却することができる。この冷却の効果は、従来のフィンを用いた放熱の効果に比べて高い。   As described above, the LED lighting device 1 includes the fan 9, the air introduction path 10, the air flow path 13, and the air discharge port 8. Therefore, the LED element 7 can be efficiently cooled. The effect of this cooling is higher than the effect of heat dissipation using conventional fins.

また、空気排出口８が、ＬＥＤ素子７を配置した基板６の周囲に設けられている。そのため、ＬＥＤ素子７から発生した熱を奪った空気を、ＬＥＤ照明装置１の筐体２の外部へ迅速かつ確実に排出することができる。   An air discharge port 8 is provided around the substrate 6 on which the LED elements 7 are arranged. Therefore, the air deprived of heat generated from the LED element 7 can be quickly and reliably discharged to the outside of the housing 2 of the LED lighting device 1.

ＬＥＤ照明装置１は、レンズ１１の投光面１１ｄ側に設けられたフィルタ１２をさらに備えている。このフィルタ１２は、ＬＥＤ素子７から発せられてレンズ１１の投光面１１ｄを通った光のうち、ある波長域の光を選択的に透過させ、その他の波長域の光を反射させることができるため、ＬＥＤ照明装置１の用途に合わせて光の色を調節することができる。   The LED illumination device 1 further includes a filter 12 provided on the light projecting surface 11 d side of the lens 11. The filter 12 can selectively transmit light in a certain wavelength region and reflect light in other wavelength regions out of the light emitted from the LED element 7 and passing through the light projecting surface 11 d of the lens 11. Therefore, the color of light can be adjusted according to the application of the LED lighting device 1.

ＬＥＤ照明装置１は、レンズ１１の外周部１５を覆うように設けられたフード３をさらに備えている。そのため、ＬＥＤ素子７から発せられてレンズ１１の外周部１５を通った光は、フード３により遮られ、所望の領域にのみ光を照射することができる。   The LED lighting device 1 further includes a hood 3 provided so as to cover the outer peripheral portion 15 of the lens 11. Therefore, the light emitted from the LED element 7 and passing through the outer peripheral portion 15 of the lens 11 is blocked by the hood 3 and can irradiate only a desired region.

他の実施の形態では、図１に示したフード３は設けられていない。この場合、レンズ１１の外周部１５を通りレンズ１１の外へ出た光は、被照射面に照射される。すなわち、フード３を設けた場合とは異なる演出効果が得られる。   In other embodiments, the hood 3 shown in FIG. 1 is not provided. In this case, the light that has passed through the outer peripheral portion 15 of the lens 11 and has exited the lens 11 is irradiated onto the irradiated surface. That is, an effect different from the case where the hood 3 is provided can be obtained.

また、ＬＥＤ素子７のワット数によっては、ＬＥＤ素子７に電力を供給する電源をリヤカバー２ａの空気導入路１０内に設けてもよい。これにより、外部電源が不要となり、ＬＥＤ照明装置全体の小型化を図ることができる。ただし、空気導入路１０内の電源は、空気導入口４及び５からファン９へ向かう空気の流れを妨げない箇所に設けられていることが必要である。   Further, depending on the wattage of the LED element 7, a power source for supplying power to the LED element 7 may be provided in the air introduction path 10 of the rear cover 2a. Thereby, an external power supply becomes unnecessary and the size reduction of the whole LED lighting apparatus can be achieved. However, the power supply in the air introduction path 10 needs to be provided at a location that does not hinder the flow of air from the air introduction ports 4 and 5 toward the fan 9.

他の実施例では、基板６は、六角形以外の他の多角形や円形などの任意の形状とすることができる。   In other embodiments, the substrate 6 can have any shape other than a hexagon, such as a polygon or a circle.

また、他の実施例では、ＬＥＤ素子７の個数を任意の数とすることができる。ＬＥＤ素子のワット数も任意の数値とすることができる。   Moreover, in another Example, the number of the LED elements 7 can be made into arbitrary numbers. The wattage of the LED element can also be an arbitrary numerical value.

１ ＬＥＤ照明装置
２ 筐体
２ａ リヤカバー
２ｂ フロントカバー
２ｃ アーム
３ フード
４ 空気導入口
５ 空気導入口
６ 基板
７ ＬＥＤ素子
８ 空気排出口
９ ファン
１０ 空気導入路
１１ レンズ
１１ａ 係止部
１１ｂ 第一の凹部
１１ｃ 第二の凹部
１１ｄ 投光面
１１ｅ 底部
１１ｆ 内周壁
１２ フィルタ
１３ 空気流路
１４ 切り欠き
１５ 外周部
１６ 支持壁 DESCRIPTION OF SYMBOLS 1 LED lighting apparatus 2 Case 2a Rear cover 2b Front cover 2c Arm 3 Hood 4 Air inlet 5 Air inlet 6 Substrate 7 LED element 8 Air outlet 9 Fan 10 Air inlet 11 Lens 11a Locking part 11b First recess 11c 2nd recessed part 11d Light projection surface 11e Bottom part 11f Inner peripheral wall 12 Filter 13 Air flow path 14 Notch 15 Outer peripheral part 16 Support wall

Claims (4)

筐体と、
前記筐体内に設けられ、ＬＥＤ素子を収納する凹部を備えたレンズと、
前記筐体内において、前記レンズの取付面側に設けられた、前記ＬＥＤ素子を冷却するファンと、
前記筐体内に設けられ、前記筐体の外部から前記ファンへ空気を導入する空気導入路と、
前記筐体内に設けられ、前記ファンから前記ＬＥＤ素子へ空気を流す空気流路と、
前記筐体に設けられ、前記ＬＥＤ素子を通った空気を前記筐体の外部へ排出する空気排出口と
を備えているＬＥＤ照明装置。 A housing,
A lens provided in the housing and provided with a recess for housing the LED element;
In the housing, provided on the lens mounting surface side, a fan for cooling the LED element,
An air introduction path provided in the housing and for introducing air into the fan from the outside of the housing;
An air flow path provided in the housing and for flowing air from the fan to the LED element;
An LED lighting device comprising: an air discharge port provided in the housing and configured to discharge air that has passed through the LED element to the outside of the housing. 前記空気排出口が、前記ＬＥＤ素子を配置した基板の周囲に設けられている、請求項１に記載のＬＥＤ照明装置。   The LED lighting device according to claim 1, wherein the air discharge port is provided around a substrate on which the LED elements are arranged. 前記レンズの投光面側に設けられたフィルタをさらに備えている請求項１に記載のＬＥＤ照明装置。   The LED lighting device according to claim 1, further comprising a filter provided on a light projecting surface side of the lens. 前記レンズの外周部を覆うように設けられたフードをさらに備えている請求項１に記載のＬＥＤ照明装置。   The LED lighting device according to claim 1, further comprising a hood provided so as to cover an outer peripheral portion of the lens.
JP2010023600A 2010-02-04 2010-02-04 Led lighting device Pending JP2011165351A (en)

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US10141489B1 (en) 2017-08-24 2018-11-27 Shoichi Nakamura LED illumination apparatus
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