JP2008218114A - Lighting fixture - Google Patents

Lighting fixture Download PDF

Info

Publication number
JP2008218114A
JP2008218114A JP2007052149A JP2007052149A JP2008218114A JP 2008218114 A JP2008218114 A JP 2008218114A JP 2007052149 A JP2007052149 A JP 2007052149A JP 2007052149 A JP2007052149 A JP 2007052149A JP 2008218114 A JP2008218114 A JP 2008218114A
Authority
JP
Japan
Prior art keywords
light source
base
led
lighting fixture
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2007052149A
Other languages
Japanese (ja)
Inventor
Kenichi Ishii
健一 石井
Takuo Murai
卓生 村井
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.)
Mitsubishi Electric Corp
Mitsubishi Electric Lighting Corp
Original Assignee
Mitsubishi Electric Corp
Mitsubishi Electric Lighting Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp, Mitsubishi Electric Lighting Corp filed Critical Mitsubishi Electric Corp
Priority to JP2007052149A priority Critical patent/JP2008218114A/en
Publication of JP2008218114A publication Critical patent/JP2008218114A/en
Pending legal-status Critical Current

Links

Landscapes

  • Planar Illumination Modules (AREA)
  • Led Device Packages (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 enhance heat radiating efficiency of a lighting fixture using LEDs as a light source. <P>SOLUTION: LEDs 2 are installed inside either side board 3-2 of a light-source pedestal 3 formed in a bowl shape. A phosphor sheet 4 is provided inside a lid plate 3-1 of the light source pedestal 3 separately from the LEDs 2. Since the LEDs 2 are set inside the side boards 3-2, a distance of the fixture to an outer shell is short. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、例えば、点状光源であるＬＥＤ（Ｌｉｇｈｔ−Ｅｍｉｔｔｉｎｇ Ｄｉｏｄｅ）を用いた照明器具の放熱を効率的に行う技術に関する。   The present invention relates to a technique for efficiently dissipating heat from a luminaire using, for example, an LED (Light-Emitting Diode) that is a point light source.

従来、ＬＥＤを光源として用いた照明器具では、ＬＥＤが可視光を放射するためＬＥＤを照明器具の中央部に配置する。そのため、ＬＥＤからの熱を照明器具の外部に放出するために工夫が必要である。特許文献１では、照明器具の中央部に配置されたＬＥＤで発生した熱を、まず背面に実装されている基板へ伝導させる。次に、熱を基板から、基板に当接している金属製取付け部材へ伝導させる。そして、熱を金属製取付け部材から、造営物に取付けられている取付面を介して造営物に放熱させる。
特開２００５−７１７１１号公報 Conventionally, in a lighting fixture using an LED as a light source, since the LED emits visible light, the LED is arranged in the center of the lighting fixture. Therefore, ingenuity is required to release heat from the LED to the outside of the lighting fixture. In patent document 1, the heat | fever generate | occur | produced with LED arrange | positioned in the center part of a lighting fixture is first conducted to the board | substrate mounted in the back surface. Next, heat is conducted from the substrate to the metal mounting member in contact with the substrate. Then, heat is radiated from the metal attachment member to the construction through the attachment surface attached to the construction.
JP 2005-71711 A

しかし、特許文献１の方法では、ＬＥＤで発生した熱を照明器具の外部に熱伝導させる距離が長い。そのため、効率的に熱を放出することができない。
本発明は、例えば、ＬＥＤで発生した熱を照明器具の外部に熱伝導させる距離を短くすることを目的とする。また、熱の発生源となる部材を分散させることにより放熱効果を高めることを目的とする。さらに、ＬＥＤ以外の部材で発生した熱を照明器具の外部に熱伝導させる距離を短くすることを目的とする。 However, in the method of Patent Document 1, the distance for conducting heat generated by the LEDs to the outside of the lighting fixture is long. Therefore, heat cannot be released efficiently.
An object of this invention is to shorten the distance which heat-transfers the heat | fever generate | occur | produced by LED to the exterior of a lighting fixture, for example. Another object of the present invention is to enhance the heat dissipation effect by dispersing members that are heat generation sources. Furthermore, it aims at shortening the distance which heat-transfers the heat | fever generate | occur | produced in members other than LED to the exterior of a lighting fixture.

本発明に係る照明器具は、例えば、取付面に取り付けられる照明器具において、
上記取付面に取り付けられた場合に上記取付面と略平行になる基台蓋板と、外郭を構成する基台側板とを有するお盆状の光源基台と、
上記光源基台の基台側板の内側に設けられた青色、青紫色あるいは紫外線の光を放出するＬＥＤ（Ｌｉｇｈｔ−Ｅｍｉｔｔｉｎｇ Ｄｉｏｄｅ）を有する光源部と、
上記光源基台の基台蓋板内側に上記光源部とは離れて設けられた、上記光源部が放出する光を励起光として他の可視光に波長変換する波長変換部と
を備えることを特徴とする。 The luminaire according to the present invention is, for example, a luminaire attached to a mounting surface,
A tray-shaped light source base having a base cover plate that is substantially parallel to the mounting surface when attached to the mounting surface, and a base side plate that constitutes the outer shell,
A light source unit having an LED (Light-Emitting Diode) that emits blue, blue-violet, or ultraviolet light provided inside the base side plate of the light source base;
A wavelength conversion unit provided on the inner side of the base cover plate of the light source base and spaced apart from the light source unit, and converts the wavelength of the light emitted from the light source unit into other visible light as excitation light. And

本発明に係る照明器具によれば、例えば、本発明ではＬＥＤ基板を照明器具を構成する側壁に直接熱伝導させることが可能である。また、照明に必要な光を照明器具中央部から取り出すことが可能である。   According to the luminaire according to the present invention, for example, in the present invention, the LED substrate can be directly thermally conducted to the side wall constituting the luminaire. Moreover, it is possible to take out light required for illumination from the center part of a lighting fixture.

実施の形態１．
実施の形態１では、効率的に熱を放出する照明器具について説明する。 Embodiment 1 FIG.
In Embodiment 1, a lighting apparatus that efficiently releases heat will be described.

図１から図３までに基づき実施の形態１に係る照明器具について説明する。図１は実施の形態１に係る照明器具の斜視図である。但し、図１では簡単のため後述する光学フィルター５を省略している。図２は図１に示すＡ−Ａ’断面図である。図３は図２に示す照明器具の分解図である。
図１から図３までに示すように、実施の形態１に係る照明器具は、天井等の取付面２０に取り付けられる。実施の形態１に係る照明器具は、ＬＥＤ基板アレー１（光源部）、ＬＥＤ２、光源基台３、蛍光体シート４（波長変換部）、光学フィルター５、取付部６、電源部７、ネジ８を備える。また、図３に示すように、蛍光体シート４と光学フィルター５とは着脱自在である。つまり、蛍光体シート４と光学フィルター５とは交換可能である。 A lighting apparatus according to Embodiment 1 will be described with reference to FIGS. 1 is a perspective view of a lighting fixture according to Embodiment 1. FIG. However, in FIG. 1, an optical filter 5 described later is omitted for simplicity. FIG. 2 is a cross-sectional view taken along the line AA ′ shown in FIG. FIG. 3 is an exploded view of the lighting apparatus shown in FIG.
As shown in FIGS. 1 to 3, the lighting apparatus according to Embodiment 1 is attached to an attachment surface 20 such as a ceiling. The lighting fixture according to Embodiment 1 includes an LED substrate array 1 (light source unit), an LED 2, a light source base 3, a phosphor sheet 4 (wavelength conversion unit), an optical filter 5, an attachment unit 6, a power source unit 7, and screws 8 Is provided. Moreover, as shown in FIG. 3, the phosphor sheet 4 and the optical filter 5 are detachable. That is, the phosphor sheet 4 and the optical filter 5 can be exchanged.

ＬＥＤ基板アレー１は、ＬＥＤ２が実装される基板である。ＬＥＤ基板アレー１は、複数のＬＥＤ２を備える。ＬＥＤ基板アレー１は、図１に示すように、１列に複数のＬＥＤ２を配置してもよいし、複数列に複数のＬＥＤ２を配置してもよい。ＬＥＤ基板アレー１は、後述する光源基台３の基台側板３−２の内側に設けられる。
ＬＥＤ２は、青色、青紫色あるいは紫外線の光を放出する。
光源基台３は、底面が円や四角、六角等の多角形のお盆状に形成される。つまり、光源基台３は、基台蓋板３−１と基台側板３−２とを有する。基台蓋板３−１は、基台側板３−２の一端に形成された面である。基台蓋板３−１は、照明器具が取付面２０に取り付けられた場合に取付面２０と略平行になる。基台側板３−２は、お盆状に形成された光源基台３の側面部分であり、周をなす部分である。図１から図３まででは、基台蓋板３−１と基台側板３−２とのなす角は直角であるがこれに限るものではなく、基台側板３−２が内側に傾斜して設けられても構わない。また、基台側板３−２は、照明器具の外郭を構成する。つまり、基台側板３−２は、照明器具の外側部分であり、原則としてその外側に他の部材が取り付けられることはない。
蛍光体シート４は、ＬＥＤ２が放出する光を励起光として他の可視光に波長変換する。蛍光体シート４は、シート状の蛍光体を基台蓋板３−１の内側に貼付しているとしても、蛍光体を基台蓋板３−１の内側に塗布しているとしても構わない。蛍光体シート４は、基台蓋板３−１の内側の全体に設けられても、一部のみに設けられても構わない。
光学フィルター５は、ＬＥＤ２が放出した光と蛍光体シート４が波長変換した可視光との内、所定の波長の光を遮断する。光学フィルター５は、ＬＥＤ２が放出した光と蛍光体シート４が波長変換した可視光とが照明器具の外部へ出る部分に設けられる。図１から図３まででは、基台側板３−２の端部に設けられている。
取付部６は、光源基台３を取付面２０に取り付ける。また、取付部６は、内部に電源部７が設けられる。取付部６は、取付部底板６−１と取付部側板６−２とを有するお盆状に形成される。取付部底板６−１は、外側を光源基台３の基台蓋板３−１の外側に取り付けられる。つまり、お盆状に形成された光源基台３と、お盆状に形成された取付部６とが逆方向に開口部分を向けて、底面を合わせて取り付けられる。図１から図３まででは、取付部底板６−１は基台蓋板３−１と同一の大きさである。しかし、これに限られず、取付部底板６−１が基台蓋板３−１よりも大きくても、小さくても構わない。取付部側板６−２は、例えば端部が取付面２０に取り付けられる。しかし、実施の形態１に係る照明器具の取付面２０への取付け方はこれに限らず、光源基台３の基台側板３−２の端部まで取付面２０に設けられた取付穴に埋め込んで取付するとしても構わない。
電源部７は、ＬＥＤ２へ電源を供給する部材である。
ネジ８は、光源基台３と取付部６とをネジ止めする。 The LED board array 1 is a board on which the LEDs 2 are mounted. The LED substrate array 1 includes a plurality of LEDs 2. As shown in FIG. 1, the LED substrate array 1 may have a plurality of LEDs 2 arranged in one row, or a plurality of LEDs 2 arranged in a plurality of rows. The LED board array 1 is provided inside a base side plate 3-2 of a light source base 3 described later.
The LED 2 emits blue, blue-violet or ultraviolet light.
The light source base 3 is formed in a polygonal basin shape such as a circle, a square, or a hexagon at the bottom. That is, the light source base 3 includes a base cover plate 3-1 and a base side plate 3-2. The base cover plate 3-1 is a surface formed at one end of the base side plate 3-2. The base cover plate 3-1 is substantially parallel to the attachment surface 20 when the lighting fixture is attached to the attachment surface 20. The base side plate 3-2 is a side surface portion of the light source base 3 formed in a tray shape and is a portion that forms a circumference. In FIGS. 1 to 3, the angle formed by the base cover plate 3-1 and the base side plate 3-2 is a right angle, but the angle is not limited to this, and the base side plate 3-2 is inclined inward. It may be provided. In addition, the base side plate 3-2 constitutes the outline of the lighting fixture. That is, the base side plate 3-2 is an outer portion of the lighting fixture, and in principle, no other member is attached to the outer side thereof.
The phosphor sheet 4 converts the wavelength of the light emitted from the LED 2 into other visible light as excitation light. The phosphor sheet 4 may be a sheet-like phosphor affixed to the inside of the base cover plate 3-1, or a phosphor may be applied to the inside of the base cover plate 3-1. . The phosphor sheet 4 may be provided on the entire inner side of the base cover plate 3-1, or may be provided on only a part thereof.
The optical filter 5 blocks light having a predetermined wavelength among the light emitted from the LED 2 and the visible light whose wavelength is converted by the phosphor sheet 4. The optical filter 5 is provided at a portion where the light emitted from the LED 2 and the visible light whose wavelength is converted by the phosphor sheet 4 go out of the lighting fixture. In FIG. 1 to FIG. 3, it is provided at the end of the base side plate 3-2.
The attachment portion 6 attaches the light source base 3 to the attachment surface 20. Further, the attachment portion 6 is provided with a power source portion 7 therein. The attachment portion 6 is formed in a tray shape having an attachment portion bottom plate 6-1 and an attachment portion side plate 6-2. The attachment portion bottom plate 6-1 is attached to the outside of the base cover plate 3-1 of the light source base 3 on the outside. That is, the light source base 3 formed in a tray shape and the mounting portion 6 formed in a tray shape are attached with their bottom faces aligned with the opening portions directed in opposite directions. In FIGS. 1 to 3, the attachment bottom plate 6-1 is the same size as the base cover plate 3-1. However, the present invention is not limited to this, and the attachment portion bottom plate 6-1 may be larger or smaller than the base cover plate 3-1. For example, the end of the attachment portion side plate 6-2 is attached to the attachment surface 20. However, the method of attaching the lighting fixture according to Embodiment 1 to the attachment surface 20 is not limited to this, and the light fixture base 3 is embedded in the attachment holes provided in the attachment surface 20 up to the end of the base side plate 3-2. You may attach with.
The power supply unit 7 is a member that supplies power to the LED 2.
The screws 8 fasten the light source base 3 and the attachment portion 6 with screws.

ここで、ＬＥＤ基板アレー１は、光源基台３の基台側板３−２の内側に設けられる。また、蛍光体シート４は、光源基台３の基台蓋板３−１の内側にＬＥＤ基板アレー１が有するＬＥＤ２とは離れて設けられる。つまり、熱源となるＬＥＤ２と蛍光体シート４とは離れた位置に設けられる。そのため、熱の発生が分散されるので、放熱効率が高い。
基台側板３−２は、照明器具の外郭を構成する。そして、ＬＥＤ基板アレー１は、その基台側板３−２の内側に設けられる。つまり、ＬＥＤ基板アレー１に設けられたＬＥＤ２から照明器具の外郭までの距離が非常に短い。そのため、ＬＥＤ２で発生した熱の放熱効率が高い。
したがって、実施の形態１に係る照明器具は、全体として効率よく放熱することが可能である。 Here, the LED board array 1 is provided inside the base side plate 3-2 of the light source base 3. Further, the phosphor sheet 4 is provided inside the base cover plate 3-1 of the light source base 3 so as to be separated from the LEDs 2 included in the LED substrate array 1. That is, the LED 2 serving as a heat source and the phosphor sheet 4 are provided at positions separated from each other. Therefore, the heat generation is dispersed, so that the heat dissipation efficiency is high.
The base side plate 3-2 constitutes the outline of the lighting fixture. The LED substrate array 1 is provided inside the base side plate 3-2. That is, the distance from the LED 2 provided on the LED board array 1 to the outer shell of the lighting fixture is very short. Therefore, the heat dissipation efficiency of the heat generated in the LED 2 is high.
Therefore, the lighting fixture according to Embodiment 1 can efficiently dissipate heat as a whole.

また、ＬＥＤ基板アレー１は、基台側板３−２の基台蓋板３−１側に寄せて設けてもよいし、図２、図３に示すように基台側板３−２の光学フィルター５に寄せて設けてもよい。ＬＥＤ基板アレー１が基台側板３−２の光学フィルター５に寄せて設けられた場合には、ＬＥＤ２と蛍光体シート４との距離が遠くなるため、より放熱効率が高い。   The LED board array 1 may be provided close to the base cover plate 3-1 side of the base side plate 3-2, or as shown in FIGS. 2 and 3, the optical filter of the base side plate 3-2. 5 may be provided. When the LED substrate array 1 is provided close to the optical filter 5 of the base side plate 3-2, the distance between the LED 2 and the phosphor sheet 4 is increased, so that the heat dissipation efficiency is higher.

実施の形態２．
実施の形態２では、ＬＥＤ２が放出した光を効率よく蛍光体シート４へ集める照明器具について説明する。 Embodiment 2. FIG.
Embodiment 2 demonstrates the lighting fixture which collects the light which LED2 discharge | released to the fluorescent substance sheet 4 efficiently.

図４に基づき、実施の形態２に係る照明器具について説明する。図４に示す照明器具は、ＬＥＤ台座９を備える。図４に示す照明器具のその他の構成は、図１から図３までに示す照明器具と同一である。
ＬＥＤ台座９は、一端にＬＥＤ基板アレー１を取り付けるとともに、他端が光源基台３の基台側板３−２の内側に設けられる。また、ＬＥＤ台座９のＬＥＤ基板アレー１を取り付ける端部は、蛍光体シート４方向に面を向けて傾いている。つまり、ＬＥＤ台座９を介して基台側板３−２に取り付けられたＬＥＤ２は、光軸が水平よりも蛍光体シート４側へ向いている。したがって、ＬＥＤ２が放出した光は効率よく蛍光体シート４へ集まる。基台側板３−２が内側に傾斜して設けられている場合にも同様の効果を得ることができる。 Based on FIG. 4, the lighting fixture which concerns on Embodiment 2 is demonstrated. The luminaire shown in FIG. 4 includes an LED base 9. The other structure of the lighting fixture shown in FIG. 4 is the same as that of the lighting fixture shown in FIGS.
The LED base 9 is attached to the LED substrate array 1 at one end, and the other end is provided inside the base side plate 3-2 of the light source base 3. Moreover, the edge part which attaches the LED board array 1 of the LED base 9 inclines the surface toward the fluorescent substance sheet 4 direction. That is, LED2 attached to the base side plate 3-2 via the LED base 9 has the optical axis toward the phosphor sheet 4 side rather than horizontal. Therefore, the light emitted from the LED 2 is efficiently collected on the phosphor sheet 4. The same effect can be obtained also when the base side plate 3-2 is provided to be inclined inward.

図５に基づき、図４に示した照明器具とは異なる実施の形態２に係る照明器具について説明する。図５に示す照明器具は、ＬＥＤ基板アレー１が有するＬＥＤが表面実装型ＬＥＤである。図５に示す照明器具のその他の構成は、図１から図３までに示す照明器具と同一である。
表面実装型ＬＥＤは、ＬＥＤ２が断面凹字型に形成された基板１０の凹部の底面に設けられる。つまり、基板１０はお盆状に形成されている。また、基板１０の凹部の側面内側にＬＥＤ２が放出した光を反射する反射部１１（１１ａ，１１ｂ）が設けられている。反射部１１が、ＬＥＤ２が放出したが蛍光体シート４方向に進まない光を反射して蛍光体シート４方向へ進行方向を変換する。したがって、ＬＥＤ２が放出した光は効率よく蛍光体シート４へ集まる。
ここで、反射部１１ｂは反射角に鑑みて、ＬＥＤ２が放出した光を蛍光体シート４方向へ反射するのが難しい場合には設ける必要はない。 Based on FIG. 5, the lighting fixture which concerns on Embodiment 2 different from the lighting fixture shown in FIG. 4 is demonstrated. In the luminaire shown in FIG. 5, the LEDs included in the LED substrate array 1 are surface-mount LEDs. The other structure of the lighting fixture shown in FIG. 5 is the same as that of the lighting fixture shown in FIGS.
The surface-mounted LED is provided on the bottom surface of the concave portion of the substrate 10 in which the LED 2 is formed in a concave shape in cross section. That is, the substrate 10 is formed in a tray shape. Moreover, the reflection part 11 (11a, 11b) which reflects the light which LED2 discharge | released inside the side surface of the recessed part of the board | substrate 10 is provided. The reflection unit 11 reflects the light emitted from the LED 2 but does not travel in the direction of the phosphor sheet 4 and changes the traveling direction in the direction of the phosphor sheet 4. Therefore, the light emitted from the LED 2 is efficiently collected on the phosphor sheet 4.
Here, the reflection part 11b need not be provided when it is difficult to reflect the light emitted by the LED 2 in the direction of the phosphor sheet 4 in view of the reflection angle.

また、図６に、ＬＥＤ２が放出した光をより効率よく蛍光体シート４へ集めるための表面実装型ＬＥＤの基板１０の形状を示す。図６の（ａ）は、図５と同様の方向から見た基板１０の断面図である。図６の（ｂ）は、基板１０を正面（図５のＢ方向）から見た図である。
図６の（ａ）に示すように、反射部１１ａの角度を蛍光体シート４側へ傾ける。つまり、反射部１１ａは、基板１０の凹部の底面から基板１０の側面の先端へ向かって、基台蓋板３−１と平行よりも基台蓋板３−１側へ傾いている。
また、図６の（ｂ）に示すように、反射部１１ｃと反射部１１ｄとは、反射部１１ａ側端部から反射部１１ｂ側端部へ向かって互いに離れる方向に傾いている。
つまり、反射部１１は、ＬＥＤ２が放出した光を反射する方向が蛍光体シート４側へ向くように傾けて設けられている。したがって、ＬＥＤ２が放出した光をより効率よく蛍光体シート４へ集めることができる。ＬＥＤ２が放出した光を効率よく集めることで、ＬＥＤ２の数を減らすことが可能となる。その結果、発生する熱を抑えることが可能となる。 FIG. 6 shows the shape of the substrate 10 of the surface-mounted LED for collecting the light emitted from the LED 2 onto the phosphor sheet 4 more efficiently. FIG. 6A is a cross-sectional view of the substrate 10 viewed from the same direction as FIG. FIG. 6B is a view of the substrate 10 as viewed from the front (direction B in FIG. 5).
As shown to (a) of FIG. 6, the angle of the reflection part 11a is inclined to the fluorescent substance sheet 4 side. That is, the reflecting portion 11a is inclined from the bottom surface of the concave portion of the substrate 10 toward the front end of the side surface of the substrate 10 toward the base cover plate 3-1, rather than being parallel to the base cover plate 3-1.
Further, as shown in FIG. 6B, the reflecting portion 11c and the reflecting portion 11d are inclined in a direction away from each other from the reflecting portion 11a side end portion toward the reflecting portion 11b side end portion.
That is, the reflecting portion 11 is provided so as to be inclined so that the direction in which the light emitted from the LED 2 is reflected is directed to the phosphor sheet 4 side. Therefore, the light emitted from the LED 2 can be collected on the phosphor sheet 4 more efficiently. It is possible to reduce the number of LEDs 2 by efficiently collecting the light emitted by the LEDs 2. As a result, the generated heat can be suppressed.

実施の形態３．
実施の形態３では、実施の形態１に係る照明器具の放熱をより効率的にした照明器具について説明する。 Embodiment 3 FIG.
In the third embodiment, a description will be given of a lighting fixture that more efficiently dissipates heat from the lighting fixture according to the first embodiment.

図７に基づき、実施の形態３に係る照明器具について説明する。図７に示す照明器具は、電源部７が取付部側板６−２の内側に略密着して設けられる。電源部７は熱源となる部材である。電源部７が取付部側板６−２の内側に略密着して設けられた場合、電源部７から照明器具の外郭までの距離が非常に短い。そのため、電源部７で発生した熱の放熱効率が高い。
また、図７に示す照明器具は、蛍光体シート４を基台蓋板３−１の中央部分にのみ設けている。つまり、基台蓋板３−１の周縁部には蛍光体シート４が設けられていない。基台蓋板３−１の外側には電源部７が設けられているが、蛍光体シート４を基台蓋板３−１の中央部分にのみ設けることにより、熱源である蛍光体シート４と電源部７とを離すことができる。そのため、熱の発生が分散されるので、放熱効率が高い。 Based on FIG. 7, the lighting fixture which concerns on Embodiment 3 is demonstrated. In the luminaire shown in FIG. 7, the power supply unit 7 is provided in close contact with the inside of the attachment unit side plate 6-2. The power supply unit 7 is a member serving as a heat source. When the power supply part 7 is provided in close contact with the inner side of the attachment part side plate 6-2, the distance from the power supply part 7 to the outline of the lighting fixture is very short. Therefore, the heat dissipation efficiency of the heat generated in the power supply unit 7 is high.
Moreover, the lighting fixture shown in FIG. 7 has provided the fluorescent substance sheet 4 only in the center part of the base cover board 3-1. That is, the phosphor sheet 4 is not provided on the peripheral edge of the base cover plate 3-1. The power supply unit 7 is provided outside the base cover plate 3-1, but by providing the phosphor sheet 4 only at the central portion of the base cover plate 3-1, The power supply unit 7 can be separated. Therefore, the heat generation is dispersed, so that the heat dissipation efficiency is high.

図８に基づき、図７に示した照明器具とは異なる実施の形態３に係る照明器具について説明する。図８に示す照明器具は、取付部６を有さず、光源基台３の基台蓋板３−１が取付面２０に直接取り付けられる。そして、取付部６に設けられていた電源部７が光源基台３の基台側板３−２の外側に設けられる。さらに、電源部７は、基台側板３−２のＬＥＤ基板アレー１が設けられた位置の裏側からずらして設けられる。
まず、光源基台３の基台蓋板３−１が取付面２０に直接取り付けられることにより、蛍光体シート４で発生した熱は基台蓋板３−１を介して取付面２０へ伝導する。熱源である蛍光体シート４から外部器具である取付面２０までの距離が短いため放熱効率が高い。
また、電源部７が光源基台３の基台側板３−２の外側に設けられるため、熱源である蛍光体シート４と電源部７とを離すことができる。そのため、熱の発生が分散されるので、放熱効率が高い。また、電源部７は、光源基台３の外側に設けられる。つまり、電源部７は、照明器具の外部に設けられる。したがって、放熱効率が高い。
さらに、電源部７は、基台側板３−２のＬＥＤ基板アレー１が設けられた位置の裏側からずらして設けられるため、熱源であるＬＥＤ２と電源部７とを離すことができる。そのため、熱の発生が分散されるので、放熱効率が高い。 Based on FIG. 8, the lighting fixture which concerns on Embodiment 3 different from the lighting fixture shown in FIG. 7 is demonstrated. The luminaire shown in FIG. 8 does not have the attachment portion 6, and the base cover plate 3-1 of the light source base 3 is directly attached to the attachment surface 20. And the power supply part 7 provided in the attaching part 6 is provided in the outer side of the base side plate 3-2 of the light source base 3. FIG. Furthermore, the power supply unit 7 is provided by being shifted from the back side of the position where the LED board array 1 of the base side plate 3-2 is provided.
First, when the base cover plate 3-1 of the light source base 3 is directly attached to the attachment surface 20, heat generated in the phosphor sheet 4 is conducted to the attachment surface 20 via the base cover plate 3-1. . Since the distance from the phosphor sheet 4 as a heat source to the mounting surface 20 as an external device is short, the heat dissipation efficiency is high.
Moreover, since the power supply part 7 is provided in the outer side of the base side plate 3-2 of the light source base 3, the fluorescent substance sheet 4 and the power supply part 7 which are heat sources can be separated. Therefore, the heat generation is dispersed, so that the heat dissipation efficiency is high. The power supply unit 7 is provided outside the light source base 3. That is, the power supply unit 7 is provided outside the lighting fixture. Therefore, the heat dissipation efficiency is high.
Furthermore, since the power supply unit 7 is provided by being shifted from the back side of the position where the LED board array 1 of the base side plate 3-2 is provided, the LED 2 that is a heat source and the power supply unit 7 can be separated. Therefore, the heat generation is dispersed, so that the heat dissipation efficiency is high.

図９に基づき、図７と図８とに示した照明器具とは異なる実施の形態３に係る照明器具について説明する。図９に示す照明器具は、取付部６を有さず、光源基台３の基台蓋板３−１が取付面２０に直接取り付けられる。そして、取付部６に設けられていた電源部７が光源基台３の基台蓋板３−１の凹部の外側に設けられる。つまり、基台蓋板３−１は、内側へ凹んだ凹部を有する。そして、電源部７は、その凹部に設けられる。
まず、図８に示した照明器具と同様に、光源基台３の基台蓋板３−１が取付面２０に直接取り付けられるので、熱源である蛍光体シート４から外部器具である取付面２０までの距離が短くなり、放熱効率が高い。
また、熱源であるＬＥＤ２と電源部７との距離を図７に示す照明器具よりも離すことができる。さらに、光源基台３と取付面２０との間に電源部７が設けられるため、美感を損なうことがない。 Based on FIG. 9, the lighting fixture which concerns on Embodiment 3 different from the lighting fixture shown in FIG. 7 and FIG. 8 is demonstrated. The lighting fixture shown in FIG. 9 does not have the attachment portion 6, and the base cover plate 3-1 of the light source base 3 is directly attached to the attachment surface 20. And the power supply part 7 provided in the attaching part 6 is provided in the outer side of the recessed part of the base cover board 3-1 of the light source base 3. As shown in FIG. That is, the base cover plate 3-1 has a recess that is recessed inward. And the power supply part 7 is provided in the recessed part.
First, similarly to the lighting fixture shown in FIG. 8, since the base cover plate 3-1 of the light source base 3 is directly attached to the attachment surface 20, the attachment surface 20 which is an external device from the phosphor sheet 4 which is a heat source. The distance to is shortened and the heat dissipation efficiency is high.
In addition, the distance between the LED 2 that is a heat source and the power supply unit 7 can be separated from the lighting fixture shown in FIG. Furthermore, since the power supply unit 7 is provided between the light source base 3 and the mounting surface 20, the aesthetics are not impaired.

実施の形態４．
実施の形態４では、上記実施の形態で説明した照明器具において、ＬＥＤ２が放出する光が蛍光体シート４で変換されることなく外部へ漏れることを防止する照明器具について説明する。 Embodiment 4 FIG.
In the fourth embodiment, a description will be given of a lighting fixture that prevents light emitted from the LED 2 from leaking outside without being converted by the phosphor sheet 4 in the lighting fixture described in the above embodiment.

図１０から図１２までに基づき実施の形態４に係る照明器具について説明する。図１０は実施の形態４に係る照明器具の斜視図である。図１１は、図１０に示す照明器具の後述する不透過部１２の一部を破断した状態を示す図である。図１２は図１０に示すＣ−Ｃ’断面図である。図１０と図１１とでは簡単のため光学フィルター５を省略している。   A lighting apparatus according to Embodiment 4 will be described based on FIGS. 10 to 12. FIG. 10 is a perspective view of a lighting fixture according to the fourth embodiment. FIG. 11 is a diagram illustrating a state in which a part of an opaque portion 12 described later of the lighting fixture illustrated in FIG. 10 is broken. 12 is a cross-sectional view taken along line C-C ′ shown in FIG. 10. 10 and 11, the optical filter 5 is omitted for simplicity.

実施の形態４に係る照明器具は、不透過部１２を備える。実施の形態４に係る照明器具のその他の構成は、実施の形態１に係る照明器具と同一である。
不透過部１２は、光源基台３の基台側板３−２の端部の内側に設けられる。つまり、不透過部１２は、お盆状に形成された光源基台３の開口の周囲を覆うように形成される。また、不透過部１２は、ＬＥＤ２が放出する光を透過しない。
図１１に示すように、不透過部１２を設けない場合には、直接ＬＥＤ２が開口外から見える。しかし、図１０に示すように、不透過部１２を設けた場合には、直接ＬＥＤ２が開口外から見える範囲が減る。特に図１０に示すよりも不透過部１２を大きくすることで開口外からＬＥＤ２は一切見えない状態とすることも可能である。 The lighting fixture according to Embodiment 4 includes an impermeable portion 12. Other configurations of the lighting fixture according to the fourth embodiment are the same as those of the lighting fixture according to the first embodiment.
The opaque portion 12 is provided inside the end of the base side plate 3-2 of the light source base 3. That is, the opaque portion 12 is formed so as to cover the periphery of the opening of the light source base 3 formed in a tray shape. Further, the non-transmissive portion 12 does not transmit the light emitted from the LED 2.
As shown in FIG. 11, when the opaque portion 12 is not provided, the LED 2 can be directly seen from outside the opening. However, as shown in FIG. 10, when the opaque portion 12 is provided, the range in which the LED 2 can be directly seen from outside the opening is reduced. In particular, it is possible to make the LED 2 completely invisible from the outside of the opening by making the opaque portion 12 larger than shown in FIG.

実施の形態５．
実施の形態５では、上記実施の形態で説明した照明器具において蛍光体シート４が放出する光を拡散又は収束させる照明器具について説明する。 Embodiment 5. FIG.
In the fifth embodiment, a lighting fixture that diffuses or converges the light emitted from the phosphor sheet 4 in the lighting fixture described in the above embodiment will be described.

図１３と図１４とに基づき、実施の形態５に係る照明器具について説明する。図１３は、蛍光体シート４が放出する光を拡散させる照明器具を示す。図１４は、蛍光体シート４が放出する光を収束させる照明器具を示す。   Based on FIG. 13 and FIG. 14, the lighting fixture which concerns on Embodiment 5 is demonstrated. FIG. 13 shows a lighting fixture that diffuses the light emitted from the phosphor sheet 4. FIG. 14 shows a lighting fixture that converges the light emitted from the phosphor sheet 4.

図１３に示す照明器具は、蛍光体シート４が基台蓋板３−１とは反対側が凸部となる断面く字型に形成されている。つまり、蛍光体シート４を正面（図１３のＤ方向）から見た場合、蛍光体シート４の中央部分が凸部となっている。つまり、蛍光体シート４が逆山型に形成されている。そのため、蛍光体シート４が放出する光は広い角度に放出される。   In the luminaire shown in FIG. 13, the phosphor sheet 4 is formed in a cross-sectional shape having a convex portion on the side opposite to the base cover plate 3-1. That is, when the phosphor sheet 4 is viewed from the front (D direction in FIG. 13), the central portion of the phosphor sheet 4 is a convex portion. That is, the phosphor sheet 4 is formed in an inverted mountain shape. Therefore, the light emitted from the phosphor sheet 4 is emitted at a wide angle.

図１４に示す照明器具は、蛍光体シート４が基台蓋板３−１側が凸部となる断面く字型に形成されている。つまり、蛍光体シート４を正面（図１４のＥ方向）から見た場合、蛍光体シート４の中央部分が凹部となっている。つまり、蛍光体シート４が山型に形成されている。そのため、蛍光体シート４が放出する光は狭い角度に放出される。   In the luminaire shown in FIG. 14, the phosphor sheet 4 is formed in a cross-section having a convex shape on the base cover plate 3-1 side. That is, when the phosphor sheet 4 is viewed from the front (E direction in FIG. 14), the central portion of the phosphor sheet 4 is a recess. That is, the phosphor sheet 4 is formed in a mountain shape. Therefore, the light emitted from the phosphor sheet 4 is emitted at a narrow angle.

実施の形態１に係る照明器具の斜視図。FIG. 3 is a perspective view of the lighting apparatus according to Embodiment 1. 図１に示すＡ−Ａ’断面図。A-A 'sectional view shown in FIG. 図２に示す照明器具の分解図。The exploded view of the lighting fixture shown in FIG. 実施の形態２に係る照明器具の断面図。Sectional drawing of the lighting fixture which concerns on Embodiment 2. FIG. 図４とは異なる実施の形態２に係る照明器具の断面図。Sectional drawing of the lighting fixture which concerns on Embodiment 2 different from FIG. 表面実装型ＬＥＤの基板１０の形状を示す図。（ａ）は基板１０の断面図。（ｂ）は基板１０を正面図（図５のＢ方向から見た図）。The figure which shows the shape of the board | substrate 10 of surface mount type LED. (A) is sectional drawing of the board | substrate 10. FIG. FIG. 5B is a front view of the substrate 10 (viewed from the direction B in FIG. 5). 実施の形態３に係る照明器具の断面図。Sectional drawing of the lighting fixture which concerns on Embodiment 3. FIG. 図７とは異なる実施の形態３に係る照明器具の断面図。Sectional drawing of the lighting fixture which concerns on Embodiment 3 different from FIG. 図７と図８とは異なる実施の形態３に係る照明器具の断面図。Sectional drawing of the lighting fixture which concerns on Embodiment 3 different from FIG. 7 and FIG. 実施の形態４に係る照明器具の斜視図。FIG. 6 is a perspective view of a lighting fixture according to Embodiment 4. 図１０に示す照明器具の不透過部１２の一部を破断した状態を示す図。The figure which shows the state which fractured | ruptured some impermeable parts 12 of the lighting fixture shown in FIG. 図１０に示すＣ−Ｃ’断面図。C-C 'sectional drawing shown in FIG. 蛍光体シート４が放出する光を拡散させる照明器具の断面図。Sectional drawing of the lighting fixture which diffuses the light which the fluorescent substance sheet | seat 4 discharge | releases. 蛍光体シート４が放出する光を収束させる照明器具の断面図。Sectional drawing of the lighting fixture which converges the light which the fluorescent substance sheet | seat 4 discharge | releases.

符号の説明Explanation of symbols

１ ＬＥＤ基板アレー、２ ＬＥＤ、３ 光源基台、４ 蛍光体シート、５ 光学フィルター、６ 取付部、７ 電源部、８ ネジ、９ ＬＥＤ台座、１０ 基板、１１ 反射部、１２ 不透過部。   DESCRIPTION OF SYMBOLS 1 LED board array, 2 LED, 3 light source base, 4 fluorescent substance sheet, 5 optical filter, 6 attachment part, 7 power supply part, 8 screw, 9 LED base, 10 board | substrate, 11 reflection part, 12 non-transmission part.

Claims (7)

取付面に取り付けられる照明器具において、
上記取付面に取り付けられた場合に上記取付面と略平行になる基台蓋板と、外郭を構成する基台側板とを有するお盆状の光源基台と、
上記光源基台の基台側板の内側に設けられた青色、青紫色あるいは紫外線の光を放出するＬＥＤ（Ｌｉｇｈｔ−Ｅｍｉｔｔｉｎｇ Ｄｉｏｄｅ）を有する光源部と、
上記光源基台の基台蓋板内側に上記光源部とは離れて設けられた、上記光源部が放出する光を励起光として他の可視光に波長変換する波長変換部と
を備えることを特徴とする照明器具。 In the lighting fixture attached to the mounting surface,
A tray-shaped light source base having a base cover plate that is substantially parallel to the mounting surface when attached to the mounting surface, and a base side plate that constitutes the outer shell,
A light source unit having an LED (Light-Emitting Diode) that emits blue, blue-violet, or ultraviolet light provided inside the base side plate of the light source base;
A wavelength conversion unit provided on the inner side of the base cover plate of the light source base and spaced apart from the light source unit, and converts the wavelength of the light emitted from the light source unit into other visible light as excitation light. Lighting equipment. 上記光源部が有するＬＥＤは、光軸が水平よりも上記波長変換部側へ向いた
ことを特徴とする請求項１記載の照明器具。 2. The lighting apparatus according to claim 1, wherein the LED included in the light source unit has an optical axis directed toward the wavelength conversion unit rather than horizontal. 上記光源部は、断面凹字型に形成された基板の凹部の底面にＬＥＤが設けられるとともに、上記基板の凹部の側面内側に上記ＬＥＤが放出した光を反射する反射部が設けられた表面実装型ＬＥＤを有する
ことを特徴とする請求項１記載の照明器具。 The light source unit is a surface-mounted device in which an LED is provided on the bottom surface of a concave portion of a substrate formed in a concave shape in cross section, and a reflective portion that reflects light emitted from the LED is provided on the inner side surface of the concave portion of the substrate. The lighting apparatus according to claim 1, further comprising a type LED. 上記反射部は、上記ＬＥＤが放出した光を反射する方向が上記波長変換部側へ向くように傾けて設けられた
ことを特徴とする請求項３記載の照明器具。 The lighting apparatus according to claim 3, wherein the reflecting portion is provided so as to be inclined such that a direction in which light emitted from the LED is reflected is directed toward the wavelength converting portion. 上記波長変換部は、上記基台蓋板側又は上記基台蓋板と反対側が凸部となる断面く字型を形成するように設けられた
ことを特徴とする請求項１記載の照明器具。 The lighting apparatus according to claim 1, wherein the wavelength conversion unit is provided so as to form a cross-sectional shape having a convex portion on the base cover plate side or on the side opposite to the base cover plate. 上記照明器具は、さらに、
お盆状に形成され、上記取付面に取り付けられる取付部側板と、上記光源基台の基台蓋板外側に外側が取り付けられた取付部底板とを有する取付部と、
上記取付部の取付部底板内側に、上記取付部側板内側に略密着して設けられた電源部と
を備えることを特徴とする請求項１記載の照明器具。 The lighting apparatus further includes:
A mounting part having a mounting part side plate formed in a tray shape and attached to the mounting surface, and a mounting part bottom plate whose outer side is attached to the outer side of the base cover plate of the light source base,
The lighting apparatus according to claim 1, further comprising: a power supply unit provided in close contact with the inner side of the mounting unit side plate on the inner side of the mounting unit bottom plate of the mounting unit. 上記照明器具は、さらに、
上記光源基台の基台側板端部の内側に、上記光源部が有するＬＥＤが放出する光を透過しない不透過部
を備えることを特徴とする請求項１記載の照明器具。 The lighting apparatus further includes:
The lighting fixture according to claim 1, further comprising a non-transmissive portion that does not transmit light emitted by an LED included in the light source portion, on an inner side of the base side plate end portion of the light source base.
JP2007052149A 2007-03-02 2007-03-02 Lighting fixture Pending JP2008218114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007052149A JP2008218114A (en) 2007-03-02 2007-03-02 Lighting fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007052149A JP2008218114A (en) 2007-03-02 2007-03-02 Lighting fixture

Publications (1)

Publication Number Publication Date
JP2008218114A true JP2008218114A (en) 2008-09-18

Family

ID=39837924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007052149A Pending JP2008218114A (en) 2007-03-02 2007-03-02 Lighting fixture

Country Status (1)

Country Link
JP (1) JP2008218114A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012048975A (en) * 2010-08-26 2012-03-08 Panasonic Electric Works Co Ltd Indirect lighting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012048975A (en) * 2010-08-26 2012-03-08 Panasonic Electric Works Co Ltd Indirect lighting system

Similar Documents

Publication Publication Date Title
JP5651809B2 (en) Spherical lighting with easy heat release
JP5218771B2 (en) Reflector and lighting fixture
JP5628950B2 (en) Optical semiconductor lighting device
US8297790B2 (en) Lamp device
JP5682878B2 (en) Light bulb structure and its light guide lamp cover
JP2006525684A5 (en)
JP2011060450A (en) Lighting device
JP2004179048A (en) Led lighting unit and led lighting device
JP2011029091A (en) Illumination fixture
JP5798070B2 (en) Aviation Obstruction Light
JP4989791B2 (en) lamp
JP2011023345A (en) Light source unit, and illumination device
JP2013041670A (en) Straight tube type lamp and lighting fixture
JP2013026074A (en) Lighting device
JP6202363B2 (en) Lighting device
JP2013093191A (en) Led bulb
KR200463715Y1 (en) Assembling structure of the illuminators for medical usage
JP5955047B2 (en) lighting equipment
JP2008218114A (en) Lighting fixture
JP2010108859A (en) Glareless luminaire
KR101822177B1 (en) LED lighting device having a moisture proof function and easy replacement of ad image
JP6674069B1 (en) LED lighting head
JP3179339U (en) Light-emitting diode lighting device for ceiling plate
JP2014093129A (en) Light-emitting unit and luminaire
JP6004101B2 (en) lighting equipment