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JP2004241318A - Spot lighting fixture - Google Patents

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Publication number
JP2004241318A
JP2004241318A JP2003031342A JP2003031342A JP2004241318A JP 2004241318 A JP2004241318 A JP 2004241318A JP 2003031342 A JP2003031342 A JP 2003031342A JP 2003031342 A JP2003031342 A JP 2003031342A JP 2004241318 A JP2004241318 A JP 2004241318A
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Prior art keywords
emitting diode
substrate
light emitting
light
heat
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JP2003031342A
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JP3910543B2 (en
Inventor
Masahiro Ogawa
雅弘 小川
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Seiwa Electric Mfg Co Ltd
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Seiwa Electric Mfg Co Ltd
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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a spot lighting fixture whose light emitting diode has improved luminance since the heat generated in the light emitting diode is radiated to the outside effectively. <P>SOLUTION: The spot lighting fixture A has the light emitting diode 110 which is mounted on a substrate 100, an inverse cone shape reflecting plate 200 holding the light emitting diode 110 inside, which reflects the light of the light emitting diode 110 forward, and a thermally conductive member 300 which is mounted between the substrate 100 and the reflecting plate 200. Radiating fins 240 which radiate the heat conducted from the light emitting diode 110 via the substrate 100 and the heat conductive member 300 are formed on an outer periphery of the reflecting plate 200. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は発光ダイオード素子等を用いたスポット型照明器具に関する。
【０００２】
【従来の技術】
この種のスポット型照明器具は、基板に実装された発光ダイオード素子と、この発光ダイオード素子から反射する反射板とを具備している。
【０００３】
ところで、照明器具においては、基板の表面に発光ダイオード素子を実装する一方、基板の裏面に放熱シート等を設けて発光ダイオード素子自体が発する熱を逃がすようにしている（ 特許文献１参照） 。
【０００４】
【特許文献１】
特開平０８−５０４５８号
【０００５】
【発明が解決しようとする課題】
しかしながら、スポット型照明器具では、逆円錐状の反射板が発光ダイオード素子を囲う構成となっているため、発光ダイオード素子から発生する熱がこもりやすい。このため、発光ダイオード素子に供給すべき電流を所定以上大きくすることができず、その結果、発光ダイオード素子の輝度を大きく設定することが困難である。もっとも、特別な放熱手段を付加すると、この問題を解消することができるが、コスト高になるという別の問題がある。
【０００６】
本発明は上記事情に鑑みて創案されたものであって、特別な放熱手段を付加することなく、発光ダイオード素子の輝度を上げることができるスポット型照明器具を提供することを目的としている。
【０００７】
【課題を解決するための手段】
以上のような課題を解決するために、本発明のスポット型照明器具は、基板に実装された発光素子と、この発光素子が内部に配置され、同発光素子の光を前方に向けて反射させる逆円錐状の反射板と、前記基板と反射板との間に介在して設けられた熱伝導部材とを具備しており、前記反射板の外周面には前記基板及び熱伝導部材によって導かれた発光素子の熱を放熱するための放熱フィンが形成されていることを特徴としている。
【０００８】
より好ましくは、前記反射板の底部には開口が形成されており、前記熱伝導部材は、前記基板を支持するための棒部と、この棒部の端部に設けられ且つ前記開口を塞ぐベース部とを有していることが望ましい。
【０００９】
より好ましくは、前記基板にはフレキシブル基板が用いられており、前記熱伝導部材の棒部に巻きつけられていることが望ましい。
【００１０】
【発明の実施の形態】
以下、本発明の実施の形態に係るスポット型照明器具を図面を参照しながら説明する。図１は本発明の実施の形態に係るスポット型照明器具の部分切欠き概略的側面図、図２は同スポット型照明器具に用いられる反射板を説明するための図であって、（ ａ） が正面図、（ ｂ） が背面図、図３は同照明器具に用いられる熱伝導部材を説明するための図であって、（ ａ） が側面図、（ ｂ） が裏面図である。
【００１１】
ここに掲げるスポット型照明器具Ａは、基板１００に実装された発光ダイオード素子１１０（ 発光素子） と、この発光ダイオード素子１１０が内部に配置され、発光ダイオード素子１１０の光を前方に向けて反射させる逆円錐状の反射板２００と、基板１００と反射板２００との間に介在して設けられた熱伝導部材３００とを具備している。以下、各部を詳しく説明する。
【００１２】
発光ダイオード素子１１０は、ここでは赤色発光ダイオード素子１１１と、緑色発光ダイオード素子１１２と、青色発光ダイオード素子１１３とを使用している。
【００１３】
前記基板１００はフレキシブル基板が用いられており、その面上にはチップ状の赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３が所定のパターンで実装されている。赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３は、各列毎に直列に接続されており、それらが並列に接続されるようになっている。よって、一つの発光ダイオード素子１１０が破損したことによりすべての発光ダイオード素子１１０が発光しなくなることを防止している。なお、赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３の接続は、基板１００に形成された図示しないプリント配線によって行われる。
【００１４】
熱伝導部材３００は、図１及び３に示すように、基板１００が巻きつけられる棒部３１０と、この棒部３１０の端部が設けられ且つ後述する反射板２００の開口２１０を塞ぐベース部３２０とを有している。具体的には、ベース部３２０の中心部には、棒部３１０の端部をネジ止めするためのネジ孔３２１が設けられており、棒部３１０はベース部３２０にネジ止めにされることよって取り付けられるようになっている。また、このベース部３２０のネジ孔３２１の同心円状には、後述する反射板２００の取付部２２０のネジ孔２２１、２２１、２２１、２２１と連通する４つのネジ孔３２２、３２２、３２２、３２２が設けられており、ベース部３２０は後述する反射板２００の取付部２２０にネジ止めされることによって取り付けられるようになっている。
【００１５】
このように取り付けられた棒部３１０及びベース部３２０はアルミで構成されており、基板１００を通じて発光ダイオード素子１１０の熱を反射板２００に導くようになっている。また、棒部３１０及びベース部３２０は基板１００を支持する支持部材としての役目も果たしている。
【００１６】
なお、ベース部３２０には、基板１００の前記プリント配線に電気的に接続される図示しない配線を通すための複数の貫通孔３３０が設けられている。前記配線は図示しない電源に接続されている。
【００１７】
反射板２００は、底部の中心部にベース部３２０に取り付けられた棒部３１０が外側から内側に向かって挿入するための円形の開口２１０が設けられている。また、この開口２１０の周囲には、熱伝導部材３００のベース部３２０を取り付けるための取付部２２０が形成されている。この取付部２２０はベース部３２０が嵌まり込む円形の凹部である。この取付部２２０には、ベース部３２０の孔部３２２、３２２、３２２、３２２と連通するネジ孔２２１、２２１、２２１、２２１が設けられており、ネジ止めによって熱伝導部材３００が反射板２００に取り付けられるようになっている。
【００１８】
また、反射板２００の内周面には反射面２３０が形成されている。この反射面２３０は、適宜な凹凸（図示省略）が形成されており且つ梨地処理が施されている。これにより、反射面２３０は、赤色発光ダイオード素子１１１から発せられた赤色の光と、青緑色発光ダイオード素子１１２から発せられた青緑色の光とを混色して前方に向かって反射するように構成されている。
【００１９】
一方、反射板２００の外周面には円周方向に所定ピッチ間隔で凸脈が形成されており、これが放熱フィン２４０となっている。この放熱フィン２４０は、棒部３１０からベース部３２０を介して導かれた発光ダイオード素子１１０の熱を外部に効率的に放熱すると共に、発光ダイオード素子１１０の光を照射することによって生じた反射板２００自身の熱も外部に効率的に放熱するようになっている。これが本願発明の特徴部分である。
【００２０】
このように反射板２００の外周面に放熱フィン２４０を形成したスポット型照明器具Ａと、従来例の照明器具とを以下の表１の所定の条件の下で実験を行った。
【表１】

Figure 2004241318
【００２１】
その結果、従来のスポット型照明器具は、赤色発光ダイオード素子１１１に供給される電流が２２．３ｍＡ、緑色発光ダイオード素子１１２に供給される電流が２４．５ｍＡ、青色発光ダイオード素子１１３に供給される電流が２３．８ｍＡであり、点灯直後の１ｍ照度が２３．０Ｌｘ、安定時の１ｍ照度が１８．２０Ｌｘとなった。
【００２２】
一方、本発明の実施の形態に係るスポット型照明器具Ａは、赤色発光ダイオード素子１１１に供給される電流が４７．０ｍＡ、緑色発光ダイオード素子１１２に供給される電流が３８．８ｍＡ、青色発光ダイオード素子１１３に供給される電流が４３．６ｍＡであり、点灯直後の１ｍ照度が３３．６Ｌｘ、安定時の１ｍ照度が３３．３Ｌｘとなった。
【００２３】
このように反射板２００の外周面に放熱フィン２４０を形成すると、この放熱フィン２４０で発光ダイオード素子１１０の熱と、反射板２００自身の熱とを外部に効率的に放熱することができることから、従来例よりも発光ダイオード素子１１０に供給すべき電流を大きくすることができる。よって、上記実験結果にも示すように特別な放熱手段を付加することなく、発光ダイオード素子１１０の輝度を大きく設定することができる。
【００２４】
なお、上述した実施例では、熱伝導部材３００が棒部３１０とベース部３２０とを有するとしたが、これに限定されることはなく、シート状の熱伝導部材を用いても良い。この場合、基板１００はフレキシブル基板ではなく、板状の基板を用いることもできる。板状の基板を用いた場合、この基板を支持する支持部材を別途設けると良い。
【００２５】
また、ここでは、赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３をフレキシブル基板である基板１００に実装するとしたが、棒部３１０に直接実装することもできる。この場合、棒部３１０に配線パターンを形成し、赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３を接続する。このように赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３を棒部３１０に直接実装することにより、熱伝導が一層向上し、さらに効率的に赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３から発生する熱を放熱することができる。その結果、赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３に供給すべき電流を大きくすることができ、より一層赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３の輝度を大きく設定することができる。
【００２６】
さらに、スポット型照明器具Ａは、赤色、緑色、青色発光ダイオード素子１１１、１１２、１１３を使用するとしたが、発光色やその数は任意であり、例えば赤色、青緑色の２種類の発光ダイオード素子使用しても良い。
【００２７】
なお、発光素子として、発光ダイオード素子を例に挙げて説明したが、これに限定されるわけではなく、他の発光素子、例えば白熱ランプ等であっても良い。
【００２８】
【発明の効果】
以上のように、本発明の請求項１のスポット型照明器具は、基板に実装された発光素子と、この発光素子が内部に配置され、同発光素子の光を前方に向けて反射させる逆円錐状の反射板と、前記基板と反射板との間に介在して設けられた熱伝導部材とを具備しており、前記反射板の外周面には前記基板及び熱伝導部材によって導かれた発光素子の熱を放熱するための放熱フィンが形成されている。
【００２９】
このような請求項１のスポット型照明器具による場合、反射板に形成した放熱フィンで、発光ダイオード素子の熱と、発光ダイオード素子の光の照射等によって生じた反射板自身の熱とを外部に放熱することができる。従って、従来例よりも発光素子に供給すべき電流を大きくすることができることから、特別な放熱手段を付加することなく、発光素子の輝度を大きく設定することができる。
【００３０】
本発明の請求項２のスポット型照明器具は、前記反射板の底部には開口が形成されており、前記熱伝導部材は、前記基板を支持するための棒部と、この棒部の端部に設けられ且つ前記開口を塞ぐベース部とを有している。
【００３１】
このような請求項２の発光ダイオード素子を用いた照明器具による場合、熱伝導部材が基板を支持する支持部材としての役目を果たすことから、構成を簡略化することができ、結果として低コスト化を図る上でメリットがある。
【００３２】
本発明の請求項３のスポット型照明器具は、前記基板はフレキシブル基板が用いられており、前記棒部に巻きつけられている。
【００３３】
このような請求項３の発光ダイオード素子を用いた照明器具による場合、基板を棒部に巻きつけるだけで簡単に取り付けることができることから、組み立てが容易になり、結果として低コスト化を図ることができる。
【図面の簡単な説明】
【図１】本発明の実施の形態に係るスポット型照明器具の部分切欠き概略的側面図である。
【図２】同スポット型照明器具に用いられる反射板を説明するための図であって、（ ａ） が正面図、（ ｂ） が背面図である。
【図３】同照明器具に用いられる熱伝導部材を説明するための図であって、（ ａ） が側面図、（ ｂ） が裏面図である。
【符号の説明】
Ａ スポット型照明器具
１００ 基板
２００ 反射板
３００ 熱伝導部材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a spot-type lighting device using a light-emitting diode element or the like.
[0002]
[Prior art]
This type of spot-type lighting fixture includes a light-emitting diode element mounted on a substrate and a reflector that reflects from the light-emitting diode element.
[0003]
By the way, in a lighting fixture, while a light emitting diode element is mounted on the surface of a substrate, a heat radiating sheet or the like is provided on the back surface of the substrate to release heat generated by the light emitting diode element itself (see Patent Document 1).
[0004]
[Patent Document 1]
JP-A-08-50458 [0005]
[Problems to be solved by the invention]
However, in the spot-type lighting fixture, since the inverted conical reflector surrounds the light emitting diode element, heat generated from the light emitting diode element is likely to be trapped. For this reason, the current to be supplied to the light emitting diode element cannot be increased by a predetermined amount or more, and as a result, it is difficult to set the luminance of the light emitting diode element to be large. However, if a special heat radiation means is added, this problem can be solved, but there is another problem that the cost increases.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a spot-type lighting device that can increase the brightness of a light-emitting diode element without adding a special heat radiation means.
[0007]
[Means for Solving the Problems]
In order to solve the problems described above, a spot-type lighting device of the present invention includes a light-emitting element mounted on a substrate and the light-emitting element disposed inside, and reflects light of the light-emitting element forward. An inverted conical reflector, and a heat conducting member provided between the substrate and the reflector are provided, and the outer peripheral surface of the reflector is guided by the substrate and the heat conducting member. A radiating fin for radiating heat of the light emitting element is formed.
[0008]
More preferably, an opening is formed in a bottom portion of the reflection plate, and the heat conductive member has a rod portion for supporting the substrate, and a base provided at an end of the rod portion and closing the opening. It is desirable to have a part.
[0009]
More preferably, a flexible substrate is used as the substrate, and the substrate is preferably wound around a rod portion of the heat conductive member.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a spot-type lighting device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view, partially cut away, of a spot-type lighting device according to an embodiment of the present invention, and FIG. 2 is a diagram for explaining a reflector used in the spot-type lighting device. 3 is a front view, FIG. 3B is a rear view, and FIG. 3 is a diagram for explaining a heat conducting member used in the lighting fixture. FIG. 3A is a side view, and FIG.
[0011]
The spot-type lighting fixture A listed here has a light-emitting diode element 110 (light-emitting element) mounted on the substrate 100 and the light-emitting diode element 110 disposed inside, and reflects the light of the light-emitting diode element 110 forward. It includes an inverted conical reflector 200 and a heat conducting member 300 interposed between the substrate 100 and the reflector 200. Hereinafter, each part will be described in detail.
[0012]
Here, the light emitting diode element 110 uses a red light emitting diode element 111, a green light emitting diode element 112, and a blue light emitting diode element 113.
[0013]
As the substrate 100, a flexible substrate is used, and red, green, and blue light-emitting diode elements 111, 112, and 113 are mounted in a predetermined pattern on the surface thereof. The red, green, and blue light emitting diode elements 111, 112, and 113 are connected in series for each column, and are connected in parallel. Therefore, it is prevented that all the light emitting diode elements 110 do not emit light due to the damage of one light emitting diode element 110. The connection of the red, green, and blue light emitting diode elements 111, 112, and 113 is performed by a printed wiring (not shown) formed on the substrate 100.
[0014]
As shown in FIGS. 1 and 3, the heat conductive member 300 includes a rod portion 310 around which the substrate 100 is wound, and a base portion 320 provided with an end of the rod portion 310 and closing an opening 210 of a reflective plate 200 described later. And Specifically, a screw hole 321 for screwing the end of the rod portion 310 is provided at the center of the base portion 320, and the rod portion 310 is screwed to the base portion 320. It can be attached. Further, four screw holes 322, 322, 322, and 322 communicating with the screw holes 221, 221, 221, and 221 of the mounting portion 220 of the reflecting plate 200 described later are formed in a concentric shape of the screw hole 321 of the base portion 320. The base portion 320 is attached to the attachment portion 220 of the reflection plate 200 to be described later by screwing.
[0015]
The rod portion 310 and the base portion 320 attached in this manner are made of aluminum, and guide the heat of the light emitting diode element 110 to the reflection plate 200 through the substrate 100. Further, the bar 310 and the base 320 also serve as a support member for supporting the substrate 100.
[0016]
The base portion 320 is provided with a plurality of through holes 330 for passing wiring (not shown) electrically connected to the printed wiring of the substrate 100. The wiring is connected to a power supply (not shown).
[0017]
The reflection plate 200 is provided with a circular opening 210 at the center of the bottom for inserting the rod 310 attached to the base 320 from outside to inside. Further, around the opening 210, a mounting portion 220 for mounting the base portion 320 of the heat conductive member 300 is formed. The mounting portion 220 is a circular recess into which the base portion 320 fits. The mounting portion 220 is provided with screw holes 221, 221, 221, and 221 that communicate with the holes 322, 322, 322, and 322 of the base portion 320, and the heat conductive member 300 is attached to the reflection plate 200 by screwing. It can be attached.
[0018]
In addition, a reflection surface 230 is formed on the inner peripheral surface of the reflection plate 200. The reflection surface 230 is formed with appropriate irregularities (not shown) and is subjected to a satin finish. As a result, the reflection surface 230 is configured to mix the red light emitted from the red light emitting diode element 111 and the blue green light emitted from the blue green light emitting diode element 112 and reflect forward. Have been.
[0019]
On the other hand, convex veins are formed on the outer peripheral surface of the reflecting plate 200 at a predetermined pitch in the circumferential direction, and these serve as radiation fins 240. The radiation fin 240 efficiently radiates the heat of the light emitting diode element 110 guided from the rod part 310 via the base part 320 to the outside, and reflects light generated by the light emission of the light emitting diode element 110. The heat of 200 itself is also efficiently radiated to the outside. This is the feature of the present invention.
[0020]
An experiment was conducted on the spot-type lighting fixture A having the radiation fins 240 formed on the outer peripheral surface of the reflection plate 200 and a conventional lighting fixture under predetermined conditions shown in Table 1 below.
[Table 1]
Figure 2004241318
[0021]
As a result, in the conventional spot-type lighting fixture, the current supplied to the red light emitting diode element 111 is 22.3 mA, the current supplied to the green light emitting diode element 112 is 24.5 mA, and the current supplied to the blue light emitting diode element 113 is supplied. The current was 23.8 mA, the 1 m illuminance immediately after lighting was 23.0 Lx, and the 1 m illuminance when stable was 18.20 Lx.
[0022]
On the other hand, in the spot-type lighting fixture A according to the embodiment of the present invention, the current supplied to the red light emitting diode element 111 is 47.0 mA, the current supplied to the green light emitting diode element 112 is 38.8 mA, and the blue light emitting diode is provided. The current supplied to the element 113 was 43.6 mA, the 1 m illuminance immediately after lighting was 33.6 Lx, and the 1 m illuminance when stable was 33.3 Lx.
[0023]
When the radiation fins 240 are formed on the outer peripheral surface of the reflection plate 200 in this manner, the radiation fins 240 can efficiently radiate the heat of the light emitting diode element 110 and the heat of the reflection plate 200 to the outside. The current to be supplied to the light emitting diode element 110 can be made larger than in the conventional example. Therefore, as shown in the above experimental results, the luminance of the light emitting diode element 110 can be set large without adding any special heat radiation means.
[0024]
In the above-described embodiment, the heat conducting member 300 has the rod portion 310 and the base portion 320. However, the present invention is not limited to this, and a sheet-shaped heat conducting member may be used. In this case, the substrate 100 is not a flexible substrate but may be a plate-shaped substrate. When a plate-shaped substrate is used, a support member for supporting the substrate may be separately provided.
[0025]
Also, here, the red, green, and blue light emitting diode elements 111, 112, and 113 are mounted on the substrate 100, which is a flexible substrate, but they may be mounted directly on the rod 310. In this case, a wiring pattern is formed on the rod 310, and the red, green, and blue light emitting diode elements 111, 112, and 113 are connected. By directly mounting the red, green, and blue light emitting diode elements 111, 112, and 113 on the rod 310, heat conduction is further improved, and the red, green, and blue light emitting diode elements 111, 112, and more efficiently. The heat generated from 113 can be radiated. As a result, the current to be supplied to the red, green, and blue light emitting diode elements 111, 112, and 113 can be increased, and the luminance of the red, green, and blue light emitting diode elements 111, 112, and 113 can be set to be higher. Can be.
[0026]
Further, the spot-type lighting fixture A uses the red, green, and blue light emitting diode elements 111, 112, and 113, but the luminescent color and the number thereof are arbitrary. For example, two kinds of red and blue green light emitting diode elements are used. May be used.
[0027]
The light-emitting element has been described by taking a light-emitting diode element as an example. However, the present invention is not limited to this, and another light-emitting element such as an incandescent lamp may be used.
[0028]
【The invention's effect】
As described above, the spot-type lighting apparatus according to claim 1 of the present invention includes a light-emitting element mounted on a substrate, and an inverted cone in which the light-emitting element is disposed and reflects the light of the light-emitting element forward. A reflector, and a heat conducting member provided between the substrate and the reflector, and an outer peripheral surface of the reflector is provided with light emitted by the substrate and the heat conducting member. Radiation fins for radiating heat of the element are formed.
[0029]
In the case of the spot-type lighting device according to the first aspect, the heat of the light emitting diode element and the heat of the reflecting plate itself generated by the irradiation of the light of the light emitting diode element and the like are radiated to the outside by the radiation fin formed on the reflecting plate. Heat can be dissipated. Therefore, since the current to be supplied to the light emitting element can be made larger than in the conventional example, the luminance of the light emitting element can be set higher without adding a special heat radiating means.
[0030]
In the spot-type lighting device according to claim 2 of the present invention, an opening is formed in a bottom portion of the reflection plate, and the heat conductive member has a rod portion for supporting the substrate, and an end portion of the rod portion. And a base portion for closing the opening.
[0031]
In the case of the lighting fixture using the light emitting diode element according to the second aspect, the configuration can be simplified because the heat conductive member serves as a support member for supporting the substrate, and as a result, the cost is reduced. There is a merit in aiming at.
[0032]
In the spot-type lighting device according to a third aspect of the present invention, the substrate is a flexible substrate, and is wound around the rod.
[0033]
In the case of such a lighting device using the light emitting diode element according to claim 3, since the substrate can be easily attached simply by winding the substrate around the rod portion, the assembly becomes easy, and as a result, the cost can be reduced. it can.
[Brief description of the drawings]
FIG. 1 is a partially cut-away schematic side view of a spot-type lighting device according to an embodiment of the present invention.
FIGS. 2A and 2B are views for explaining a reflector used in the spot-type lighting device, wherein FIG. 2A is a front view and FIG. 2B is a rear view.
FIGS. 3A and 3B are views for explaining a heat conducting member used in the lighting fixture, wherein FIG. 3A is a side view and FIG. 3B is a rear view.
[Explanation of symbols]
A spot type lighting fixture 100 substrate 200 reflector 300 heat conduction member

Claims (3)

基板に実装された発光素子と、この発光素子が内部に配置され、同発光素子の光を前方に向けて反射させる逆円錐状の反射板と、前記基板と反射板との間に介在して設けられた熱伝導部材とを具備しており、前記反射板の外周面には前記基板及び熱伝導部材によって導かれた発光素子の熱を放熱するための放熱フィンが形成されていることを特徴とするスポット型照明器具。A light-emitting element mounted on a substrate, the light-emitting element is disposed inside, a reverse-cone-shaped reflector for reflecting light of the light-emitting element forward, and interposed between the substrate and the reflector. A heat radiating fin for radiating heat of the light emitting element guided by the substrate and the heat conductive member is formed on an outer peripheral surface of the reflection plate. And spot type lighting equipment. 請求項１記載のスポット型照明器具において、前記反射板の底部には開口が形成されており、前記熱伝導部材は、前記基板を支持するための棒部と、この棒部の端部に設けられ且つ前記開口を塞ぐベース部とを有していることを特徴とするスポット型照明器具。2. The spot-type lighting device according to claim 1, wherein an opening is formed in a bottom portion of the reflection plate, and the heat conductive member is provided at a rod portion for supporting the substrate and at an end of the rod portion. And a base portion for closing the opening. 請求項２記載のスポット型照明器具において、前記基板はフレキシブル基板が用いられており、前記棒部に巻きつけられていることを特徴とするスポット型照明器具。The spot-type lighting device according to claim 2, wherein the substrate is a flexible substrate, and the substrate is wound around the rod portion.
JP2003031342A 2003-02-07 2003-02-07 Spot lighting fixture Expired - Fee Related JP3910543B2 (en)

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