JPH0222787Y2 - - Google Patents
Info
- Publication number
- JPH0222787Y2 JPH0222787Y2 JP1983071661U JP7166183U JPH0222787Y2 JP H0222787 Y2 JPH0222787 Y2 JP H0222787Y2 JP 1983071661 U JP1983071661 U JP 1983071661U JP 7166183 U JP7166183 U JP 7166183U JP H0222787 Y2 JPH0222787 Y2 JP H0222787Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- light emitting
- substrate
- heat dissipation
- 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.)
- Expired
Links
- 230000017525 heat dissipation Effects 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、放熱体を用いて灯体内の発熱に対す
る放散効果を高めた信号灯ユニツトに関するもの
である。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a signal lamp unit that uses a heat radiator to enhance the dissipation effect of heat generated within the lamp body.
従来から省電力を目的として基板上に多数の発
光ダイオードを平面的に配列し、これを光源とし
て用いた信号灯が提案されている。しかし、発光
ダイオードは、個々には発光効率に優れ、且つ省
電力ではあるが、電気から光への変換効率が小さ
いため入力電力の大部分が熱化してしまい、これ
が多数集合した場合の発熱量は極めて大きくな
る。然も発光ダイオードは、発光量において負の
温度特性を有しており、効率よく発光させるため
には、発光ダイオード自体の温度上昇を低くおさ
えることが必要である。
2. Description of the Related Art Conventionally, signal lights have been proposed in which a large number of light emitting diodes are arranged in a plane on a substrate and used as a light source for the purpose of power saving. However, although light emitting diodes individually have excellent luminous efficiency and are energy efficient, their low conversion efficiency from electricity to light results in most of the input power being converted to heat, and the amount of heat generated when a large number of these light emitting diodes are aggregated is becomes extremely large. However, the light emitting diode has a negative temperature characteristic in terms of the amount of light emitted, and in order to emit light efficiently, it is necessary to suppress the temperature rise of the light emitting diode itself.
しかし、発光ダイオードを、信号灯の光源とし
て所定規格の発光量を有する程度に多数配列し、
これ等を同時に点灯させると極めて大カロリーの
熱を生じ、発光効率を低下させるばかりでなく、
発光ダイオード自体の寿命を縮め、信号灯ユニツ
トの故障の原因ともなる欠点があつた。
However, by arranging a large number of light emitting diodes to the extent that they have the amount of light emitted by a predetermined standard as a light source for a signal light,
If these are turned on at the same time, it will generate an extremely large amount of heat, which will not only reduce the luminous efficiency, but also
This had the disadvantage of shortening the life of the light emitting diode itself and causing failure of the signal light unit.
本考案は、上記問題に鑑みて創案されたもので
あり、多数の発光ダイオードを平面的に配列した
基板の裏面に放熱体を構成することにより、信号
灯内に発生する発光ダイオードの発熱を放熱体か
ら効果的に外部へ放散させ、熱による発光ダイオ
ードの発光効率の低下や信号灯に対する悪影響を
防止することができる放熱機能を有する信号灯ユ
ニツトを提供することを目的としている。 The present invention was devised in view of the above problem, and by configuring a heat sink on the back side of a board on which a large number of light emitting diodes are arranged in a plane, the heat sink generated by the light emitting diodes in a signal light can be absorbed by the heat sink. It is an object of the present invention to provide a signal light unit having a heat dissipation function that can effectively dissipate heat from the light to the outside and prevent a decrease in the luminous efficiency of a light emitting diode due to heat and an adverse effect on the signal light.
上記目的を達成するために、本考案に係る放熱
機能を有する信号灯ユニツトは、多数の発光ダイ
オードと、基板と、放熱体とを有し、前記基板の
表側に前記多数の発光ダイオードを配列固定する
と共に、裏側に放熱体を構成するという手段を講
じたものであり、該放熱体は多数のフインを突出
形設することにより放熱面積を広く形成したもの
である。
In order to achieve the above object, the signal light unit having a heat dissipation function according to the present invention has a large number of light emitting diodes, a substrate, and a heat radiator, and the large number of light emitting diodes are arranged and fixed on the front side of the substrate. In addition, a measure is taken to form a heat radiating body on the back side, and the heat radiating body has a large heat radiating area by forming a large number of protruding fins.
而して、上記構成によれば、基板表側に配列固
定した多数の発光ダイオードの点灯時に発生する
熱量を基板裏側に構成した放熱体のフインの全面
積から効果的に放散し、表側に配列した多数の発
光ダイオードに対する熱影響の発生を防止する。
According to the above configuration, the amount of heat generated when lighting a large number of light emitting diodes arranged and fixed on the front side of the board is effectively dissipated from the entire area of the fins of the heat dissipation body arranged on the back side of the board. Preventing the occurrence of thermal effects on a large number of light emitting diodes.
以下、本考案に係る放熱機能を有する信号灯ユ
ニツトの実施例を図面に従つて説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a signal light unit having a heat dissipation function according to the present invention will be described below with reference to the drawings.
図面において、１は信号灯の光源となる発光ダ
イオード、２は多数の発光ダイオード１を平面的
に配列固定すると共に、電気的に配線接続するプ
リント板、３は裏側に放熱体４を一体的に形成し
て成る基板である。この放熱体４は、多数のフイ
ンを並設して広い放熱面積を形成したものであ
る。また、前記基板３の表側には、絶縁シート５
を介在させて多数の発光ダイオード１を配列固定
して成る前記プリント板２を取り付け、充填樹脂
６で固定した後、その外側にレンズ７を被せる。
基板３の表側で発生する発光ダイオードの熱は、
この裏側全体に形成された放熱体４が具備するフ
インの全表面から効果的に放散されるように成つ
ている。 In the drawing, 1 is a light emitting diode that serves as a light source for a signal light, 2 is a printed board on which a large number of light emitting diodes 1 are arranged and fixed in a plane, and is electrically connected to wiring, and 3 is a heat sink 4 integrally formed on the back side. This is a board made of The heat radiating body 4 has a large number of fins arranged in parallel to form a large heat radiating area. Further, an insulating sheet 5 is provided on the front side of the substrate 3.
The printed board 2, on which a large number of light emitting diodes 1 are arranged and fixed, is attached and fixed with a filling resin 6, and then a lens 7 is placed on the outside thereof.
The heat of the light emitting diode generated on the front side of the substrate 3 is
Heat is effectively radiated from the entire surface of the fins included in the heat radiating body 4 formed on the entire back side.
前記放熱体４は、必ずしも基板３の裏面部に一
体的に形成される必要はなく、これを基板３とは
別体に形成し、例えば後述するヒートパイプ等の
吸熱体を用いて基板３の裏面部に接続したり、ま
たフアン等を併用して放熱体４を強制空冷して放
熱効果を更に高めるように構成することも可能で
ある。 The heat dissipation body 4 does not necessarily have to be integrally formed on the back surface of the substrate 3, but may be formed separately from the substrate 3, for example, by using a heat absorbing body such as a heat pipe to be described later. It is also possible to configure the heat dissipating body 4 by connecting it to the back surface part or by using a fan or the like in combination to forcefully cool the heat dissipating body 4 to further enhance the heat dissipation effect.
第５図は、本考案に係る信号灯ユニツトを用い
て交通信号灯器を構成する場合における前記放熱
体４の配置方法に関する他の実施例を示すもので
あり、Ａ及びＢは、放熱体４が基板３の裏面部と
一体的に形成された信号灯ユニツトを交通信号器
の灯箱８の前面に固定し、その上部外側面部にフ
ード９を取り付け、灯箱８内において放熱体４に
よる自然冷却を行わせるよう構成したものであ
る。なお、Ｂのように灯箱８の外側面部に通風孔
１０を設けることにより灯箱８内の換気効果を高
めることもできる。 FIG. 5 shows another embodiment of the method of arranging the heat radiator 4 in the case of configuring a traffic signal light unit using the signal light unit according to the present invention. The signal light unit integrally formed with the back surface of 3 is fixed to the front of the light box 8 of the traffic signal, and a hood 9 is attached to the upper outer surface of the light box 8, so that natural cooling by the heat radiator 4 is performed inside the light box 8. It is composed of Note that the ventilation effect within the light box 8 can be enhanced by providing ventilation holes 10 on the outer side of the light box 8 as shown in B.
またＣ及びＤは、放熱体４にフアン等の送風機
１１で送風して放熱散の効果を高めたものであ
り、Ｃは、送風機１１の風を直接放熱体４に吹き
付ける方法により、またＤは、灯箱８に通風孔１
０を設け、送風機１１を用いて灯箱８内の対流を
良くする方法により強制冷却を行うように構成し
たものである。これ等の方法は、発光ダイオード
１で構成した発光部の発熱量が多い場合や、放熱
体４がいく分小さなものである場合に有効であ
る。 In addition, C and D are made by blowing air onto the heat radiating body 4 with a blower 11 such as a fan to enhance the effect of heat radiation and dissipation. , ventilation hole 1 in light box 8
0 is provided, and forced cooling is performed by using a blower 11 to improve convection inside the light box 8. These methods are effective when the amount of heat generated by the light emitting section made up of the light emitting diode 1 is large, or when the heat sink 4 is somewhat small.
更にＥ及びＦは、放熱体４を基板３の裏面部と
は別体に形成し、これを灯箱８の外部又は灯箱８
の外側面部に露出させて配置し、基板３の裏面部
に対してはヒートパイプ等の吸熱体１２で接続し
たものであり、吸熱部と放熱部を距離的に分離す
ることにより断熱又は温度差を設定し易くし、熱
の放散効果を高めることができる。尚、Ｅ(3)に示
すような複数の信号灯ユニツトを構成した交通信
号灯器においては、共通の吸熱体１２を用いて集
熱することも可能であり、またＦに示すように、
放熱体４を完全に灯箱８の外部に配置することに
より灯箱８の小型化を図ることも可能である。 Further, in E and F, the heat dissipation body 4 is formed separately from the back surface of the substrate 3, and this is placed outside the light box 8 or outside the light box 8.
It is arranged so as to be exposed on the outer surface of the substrate 3, and is connected to the back surface of the substrate 3 by a heat absorbing body 12 such as a heat pipe, and by separating the heat absorbing part and the heat dissipating part by distance, insulation or temperature difference can be avoided. This makes it easier to set up and improves the heat dissipation effect. In addition, in a traffic signal light device configured with a plurality of signal light units as shown in E(3), it is also possible to collect heat using a common heat absorbing body 12, and as shown in F,
It is also possible to downsize the lamp box 8 by arranging the heat radiator 4 completely outside the lamp box 8.
本考案に係る放熱機能を有する信号灯ユニツト
は、以上のように構成したから、多数の発光ダイ
オードを光源として用いた信号灯ユニツトにおい
て、発光ダイオードから生ずる大カロリーの熱を
効果的に外部へ放散させ、該発光ダイオードの発
光効率の低下や信号灯器の故障発生を防止するこ
とができるばかりでなく、省電力型で安価な信号
灯ユニツトを提供することができる等の特徴を有
するものであり、本考案実施後の実用上の効果は
極めて大きい。
Since the signal light unit having a heat dissipation function according to the present invention is configured as described above, in a signal light unit using a large number of light emitting diodes as a light source, a large amount of heat generated from the light emitting diodes can be effectively dissipated to the outside, This device not only prevents a decrease in the luminous efficiency of the light emitting diode and prevents the failure of the signal light device, but also provides a power-saving and inexpensive signal light unit. The subsequent practical effects are extremely large.
第１図は本考案に係る放熱機能を有する信号灯
ユニツトの実施例を示す正面図、第２図は同じく
平面図、第３図は第１図−線断面図、第４図
は同じく第１図の部分拡大縦断面図と部分拡大横
断面図、第５図Ａ乃至Ｆは本考案に係る放熱機能
を有する信号灯ユニツトを交通信号灯器に用いる
場合における各種の実施態様を示す概略構成図で
ある。
１……発光ダイオード、２……プリント板、３
……基板、４……放熱体、５……絶縁シート、６
……充填樹脂、７……レンズ、８……灯箱、９…
…フード、１０……通風孔、１１……送風機、１
２……吸熱体。
Fig. 1 is a front view showing an embodiment of a signal light unit having a heat dissipation function according to the present invention, Fig. 2 is a plan view, Fig. 3 is a sectional view taken along the line of Fig. 1, and Fig. 4 is a similar to Fig. 1. A partially enlarged vertical sectional view and a partially enlarged cross sectional view, and FIGS. 5A to 5F are schematic configuration diagrams showing various embodiments when the signal light unit having a heat dissipation function according to the present invention is used in a traffic signal light device. 1... Light emitting diode, 2... Printed board, 3
... Substrate, 4 ... Heat sink, 5 ... Insulating sheet, 6
...Filled resin, 7...Lens, 8...Light box, 9...
...Hood, 10...Ventilator, 11...Blower, 1
2... Endothermic body.
Claims (1)
体４とを有し、 前記基板２の表側に前記多数の発光ダイオー
ド１を配列固定し、裏側に放熱体４を構成した
ものであり、 前記放熱体４は、基板裏側に突出する多数の
フインを形成したものであること を特徴とする放熱機能を有する信号灯ユニツ
ト。 (2) 前記放熱体４が、基板２の裏面部と一体的に
形成したものであること を特徴とする請求項１記載の放熱機能を有する
信号灯ユニツト。 (3) 前記放熱体４が、吸熱体１２を用いて前記基
板２に接続したものであること を特徴とする請求項１又は２記載の放熱機能を
有する信号灯ユニツト。[Claims for Utility Model Registration] (1) It has a large number of light emitting diodes 1, a substrate 2, and a heat sink 4, and the large number of light emitting diodes 1 are arranged and fixed on the front side of the substrate 2, and the heat radiating body is dissipated on the back side. 1. A signal light unit having a heat dissipation function, characterized in that the heat dissipation body 4 is formed with a large number of fins protruding from the back side of the substrate. (2) The signal light unit having a heat dissipation function according to claim 1, wherein the heat dissipation body 4 is formed integrally with the back surface of the substrate 2. (3) The signal light unit having a heat dissipation function according to claim 1 or 2, wherein the heat dissipation body 4 is connected to the substrate 2 using a heat absorption body 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7166183U JPS59178799U (en) | 1983-05-16 | 1983-05-16 | Signal light unit with heat dissipation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7166183U JPS59178799U (en) | 1983-05-16 | 1983-05-16 | Signal light unit with heat dissipation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59178799U JPS59178799U (en) | 1984-11-29 |
| JPH0222787Y2 true JPH0222787Y2 (en) | 1990-06-20 |
Family
ID=30201814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7166183U Granted JPS59178799U (en) | 1983-05-16 | 1983-05-16 | Signal light unit with heat dissipation function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59178799U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4605526B2 (en) * | 2005-12-01 | 2011-01-05 | スタンレー電気株式会社 | LED lamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829493Y2 (en) * | 1978-12-28 | 1983-06-28 | カルソニックカンセイ株式会社 | LCD display panel device |
| JPS5765380U (en) * | 1980-10-04 | 1982-04-19 |
-
1983
- 1983-05-16 JP JP7166183U patent/JPS59178799U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59178799U (en) | 1984-11-29 |
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