JP3033388B2 - lighting equipment - Google Patents
lighting equipmentInfo
- Publication number
- JP3033388B2 JP3033388B2 JP5104783A JP10478393A JP3033388B2 JP 3033388 B2 JP3033388 B2 JP 3033388B2 JP 5104783 A JP5104783 A JP 5104783A JP 10478393 A JP10478393 A JP 10478393A JP 3033388 B2 JP3033388 B2 JP 3033388B2
- Authority
- JP
- Japan
- Prior art keywords
- ballast
- ceiling wall
- holes
- heat
- heat radiating
- 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 - Fee Related
Links
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、器具本体の天井壁の内
面に取付けられた安定器が発生する熱を、前記天井壁に
設けられた多数の放熱孔を通して器具本体外に排出する
天井埋め込み形照明器具などの照明器具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embedded ceiling for discharging heat generated by a ballast mounted on the inner surface of a ceiling wall of a fixture body to the outside of the fixture body through a plurality of heat radiation holes provided in the ceiling wall. The present invention relates to a lighting fixture such as a shaped lighting fixture.
【０００２】[0002]
【従来の技術】図６（Ａ）〜（Ｃ）は従来の照明器具を
示しており、図中符号１は下面が開口された箱形の器具
本体、２は器具本体１の天井壁１ａの内面に取付けられ
た安定器、３は天井壁１ａ内面にブラケット４を介して
取付けられた反射板、５は反射板３の下側に配置される
けい光ランプ、６は器具本体１の下部にその下面開口を
通して配置された制光用ルーバである。2. Description of the Related Art FIGS. 6 (A) to 6 (C) show a conventional luminaire, in which reference numeral 1 denotes a box-shaped luminaire main body having an open lower surface, and 2 denotes a ceiling wall 1a of the luminaire main body 1. A ballast mounted on the inner surface, 3 is a reflecting plate mounted on the inner surface of the ceiling wall 1a via a bracket 4, 5 is a fluorescent lamp arranged below the reflecting plate 3, and 6 is a lower part of the fixture body 1. This is a light control louver arranged through the lower surface opening.
【０００３】前記天井壁１ａには安定器２の近傍に位置
して多数の放熱孔７が設けられているとともに、器具本
体１の周壁上部にも多数の放熱孔８が設けられている。
したがって、安定器３に発生した熱は、器具本体１に熱
伝導されて、この器具本体１の周囲に放熱され、さらに
安定器３は、器具本体１の下面開口から流入して放熱孔
７，８を通る空気の流れによって空冷されるようになっ
ている。The ceiling wall 1a is provided with a large number of heat radiating holes 7 located near the ballast 2 and also provided with a large number of heat radiating holes 8 on the upper peripheral wall of the instrument body 1.
Therefore, the heat generated in the ballast 3 is conducted to the fixture body 1 and is radiated to the periphery of the fixture body 1. The air is cooled by the flow of air through the air.
【０００４】[0004]
【発明が解決しようとする課題】しかし、従来の照明器
具は、その天井壁１ａに設けられた多数の放熱孔７が安
定器３から離れていて、冷却空気流に安定器３を直接晒
すことができない。したがって、安定器３の冷却性が悪
く温度が上昇し易いという問題がある。However, in the conventional lighting fixture, a large number of heat radiation holes 7 provided in the ceiling wall 1a are separated from the ballast 3, and the ballast 3 is directly exposed to the cooling air flow. Can not. Therefore, there is a problem that the cooling performance of the ballast 3 is poor and the temperature tends to rise.
【０００５】本発明の目的は、器具本体の強度を確保し
つつ、この本体に取付けられた安定器の温度上昇を少な
くできる照明器具を得ることにある。[0005] It is an object of the present invention to secure the strength of the instrument body.
It is still another object of the present invention to provide a lighting device that can reduce a temperature rise of a ballast attached to the main body .
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するため
に、請求項１に係る本発明の照明器具は、天井壁を有し
て箱状をなし、前記天井壁のほぼ対角線方向に沿う多数
の放熱孔を前記天井壁に並設するとともに、これら放熱
孔がなす２列の放熱孔列間の天井壁部分を前記対角線方
向に延びる筋交い状部分とし、かつ、この筋交い状部分
に対して対称的に大形放熱孔を前記天井壁に設けた器具
本体と、前記対角線方向に延びる長方形状をなし、前記
筋交い状部分の内面に重ねられるとともに、その周部が
前記器具本体を上方から見たときに前記多数の放熱孔の
夫々の一部と重なるように前記天井壁に取付けられた安
定器と、を具備したことを特徴とするものである。According to a first aspect of the present invention, there is provided a lighting apparatus having a ceiling wall.
In the shape of a box, many along the diagonal direction of the ceiling wall.
Radiating holes are arranged side by side on the ceiling wall.
The ceiling wall portion between the two rows of heat dissipation holes formed by
A strut extending in the direction of
With large heat radiating holes in the ceiling wall symmetrically with respect to
A main body, having a rectangular shape extending in the diagonal direction,
It is superimposed on the inner surface of the brace-shaped part, and its periphery is
When the instrument body is viewed from above, the large number of heat dissipation holes
A ceiling mounted on the ceiling wall so as to overlap with a part of each
And a measuring instrument .
【０００７】また、安定器の温度上昇を更に少なくする
ために、請求項２に係る本発明の照明器具は、前記安定
器の幅よりも広い幅の波板状放熱板を、前記筋交い状部
分と前記安定器との間にこれらで挟んで配置するととも
に、この放熱板の周部を前記多数の放熱孔の夫々の一部
に臨ませたことを特徴とする。 In order to further reduce the temperature rise of the ballast, the lighting fixture of the present invention according to the second aspect is characterized in that the corrugated radiator plate having a width larger than the width of the ballast is provided on the brace-shaped portion.
The ballast and the ballast are sandwiched between them, and the peripheral portion of the radiator plate faces part of each of the plurality of radiator holes .
【０００８】[0008]
【作用】請求項１に記載の構成において、器具本体内で
発生する熱気を、器具本体の天井壁のほぼ対角線上に配
置された安定器に対して対称的に天井壁に設けられた大
形放熱孔を通して器具本体外に排出でき、又、器具本体
の天井壁に設けられた多数の放熱孔の夫々の孔の一部が
安定器の周部に臨む位置関係にあることにより、これら
多数の放熱孔を通って器具本体の外部へ排出される空気
の流れに安定器を直接晒すことができ、それにより、安
定器を効果的に空冷できる。しかも、器具本体の天井壁
は、その対角線方向に延びる筋交い状部分を有し、その
内面に安定器を配置したので、天井壁に大形放熱孔を設
けることができるとともに、それにも拘らず、器具本体
の強度を大きく確保できる。 According to the structure of the first aspect, in the device main body,
The generated hot air is distributed almost diagonally on the ceiling wall of the instrument body.
Large symmetrically mounted on the ceiling wall with respect to the mounted ballast
These holes can be discharged to the outside of the appliance through the radiating holes , and a part of each of the large number of radiating holes provided on the ceiling wall of the appliance has a positional relationship facing the periphery of the ballast.
The ballast can be directly exposed to the flow of air exhausted to the outside of the instrument body through the large number of heat radiating holes, thereby effectively cooling the ballast. Moreover, the ceiling wall of the instrument body
Has a diagonally extending brace-like portion,
Since a ballast is placed on the inner surface, a large heat dissipation hole is installed on the ceiling wall.
Notwithstanding, the appliance itself
Large strength can be secured.
【０００９】請求項２に記載の構成において、放熱板
は、安定器の熱を速やかに吸熱して器具本体の天井壁に
熱伝導させるとともに、この放熱板は波板状であるため
に放熱面積が大であり、その周部が多数の放熱孔の夫々
の一部に臨んでいるから、放熱孔を通って外部へ排出さ
れる空気の流れに放熱板を直接晒すことができる。した
がって、以上のような熱伝導と空冷作用とで安定器をよ
り効果的に空冷できる。According to the second aspect of the present invention, the heat radiating plate quickly absorbs heat from the ballast and conducts heat to the ceiling wall of the apparatus main body. Is large, and the periphery thereof faces a part of each of the large number of heat radiating holes, so that the heat radiating plate can be directly exposed to the flow of air discharged to the outside through the heat radiating holes. Therefore, the ballast can be more effectively air-cooled by the above-described heat conduction and air-cooling action.
【００１０】[0010]
【実施例】以下、図１〜図５を参照して本発明の一実施
例を説明する。図１〜図３中符号１１は鋼板製の器具本
体で、これは相連続する側壁１２〜１５からなる周壁の
上端開口に天井壁１６を取付けるとともに、下面が開口
された略立方体形状の箱構造をなしている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 11 in FIGS. 1 to 3 denotes an appliance body made of a steel plate, which has a substantially cubic box structure in which a ceiling wall 16 is attached to an upper end opening of a peripheral wall composed of continuous side walls 12 to 15 and a lower surface is opened. Has made.
【００１１】相対向する一対の側壁１２，１４の内面に
は反射板取付けブラケット１７が夫々取付けられ、これ
らブラケット１７に渡って反射板１８が取付けられてい
る。この反射板１８の反射面には一対のランプソケット
１９が取付けられているとともに、これらと対応して図
示しないランプホルダが取付けられている。そして、こ
れらランプソケット１９とランプホルダとを介して一対
のけい光ランプ２０が、水平な姿勢で反射板１８の反射
面側に位置して支持されている。A reflector mounting bracket 17 is mounted on the inner surfaces of the pair of side walls 12 and 14 facing each other, and a reflector 18 is mounted over these brackets 17. A pair of lamp sockets 19 are mounted on the reflecting surface of the reflecting plate 18, and a lamp holder (not shown) is mounted in correspondence with these. A pair of fluorescent lamps 20 are supported by being positioned on the reflecting surface side of the reflecting plate 18 in a horizontal posture via the lamp socket 19 and the lamp holder.
【００１２】両けい光ランプ２０には、発光管を全体と
して例えば略Ｍ字状に屈曲してなるコンパクトタイプの
片口金形けい光ランプが採用されている。このような片
口金形のものは発熱量が大きいことが知られている。As the double fluorescent lamp 20, a compact single-ended fluorescent lamp in which the arc tube is bent in, for example, a substantially M-shape as a whole is employed. It is known that such a one-piece type has a large calorific value.
【００１３】相対向する他の側壁１３，１５にはその内
面から突出するＶばね係合金具２１が夫々取付けられて
いる。前記器具本体１１の下部には、その下面開口を通
して出し入れ可能な制光用のルーバ２２が配置されてい
る。ルーバ２２は、その周部にＶばね支持金具２３を介
して支持されたＶばね２４を、Ｖばね係合金具２１に係
合させることにより、前記反射板１８の下側に位置して
取付けられている。V-spring engagement fittings 21 protruding from the inner surfaces of the other opposing side walls 13 and 15 are respectively mounted. A light control louver 22 that can be put in and out through an opening on the lower surface of the instrument body 11 is disposed below the instrument body 11. The louver 22 is mounted on the lower side of the reflection plate 18 by engaging a V spring 24 supported on a peripheral portion thereof via a V spring support 23 with a V spring engaging metal 21. ing.
【００１４】前記周壁をなす各側壁１２〜１５の上部に
は、図１および図２に示されるように多数の第１放熱孔
２５と、これらの下側に位置される多数の第２放熱孔２
６とが夫々形成されている。これら放熱孔２５，２６
は、いずれも例えば小径な丸孔からなるとともに、夫々
前記けい光ランプ２０よりも上側に設けられている。As shown in FIGS. 1 and 2, a plurality of first heat radiating holes 25 and a plurality of second heat radiating holes located below these are formed on the upper portions of the side walls 12 to 15 forming the peripheral wall. 2
6 are formed respectively. These heat radiation holes 25, 26
Are made of, for example, small-diameter round holes, and are provided above the fluorescent lamp 20, respectively.
【００１５】器具本体１１の天井壁１６の内面には、上
方から見た平面形状が長方形状をなす安定器２７が、器
具本体１１の対角線方向に延びて取付けられている。な
お、図１〜図３中２８は安定器取付け用のねじ、２９は
同じくナットである。安定器２７には、トランジスタ、
コンデンサ、抵抗、およびコイル等の電気部品を組合わ
せてなる、いわゆる電子安定器が用いられている。On the inner surface of the ceiling wall 16 of the instrument body 11, a ballast 27 having a rectangular planar shape when viewed from above is mounted so as to extend in a diagonal direction of the instrument body 11. 1 to 3, reference numeral 28 denotes a screw for mounting a ballast, and reference numeral 29 denotes a nut. The ballast 27 includes a transistor,
A so-called electronic ballast, which is a combination of electric components such as a capacitor, a resistor, and a coil, is used.
【００１６】この安定器２７と天井壁１６との間には、
この照明器具の中の部品では最も熱伝導率が良い放熱板
３１が挟み込まれている。放熱板３１には図２，図４お
よび図５に夫々示されるように例えば0.01mm程度のアル
ミニューム箔を波板状に成形したものが採用されてい
る。この波板構造の放熱板３１は強度が大きいので、天
井壁１６において安定器２７の真上に位置されて対角線
方向に延びる筋交い状部分１６ａは、図２および図３に
示されるように上向きに凸となるように湾曲されてい
る。それにより、放熱板３１の前記ねじ２８の締付け力
が及ぶ両端部以外の部分は、潰されることなく波板構造
を維持している。Between the ballast 27 and the ceiling wall 16,
A radiator plate 31 having the highest thermal conductivity is sandwiched between components in the lighting fixture. As shown in FIG. 2, FIG. 4, and FIG. 5, for example, the heat radiating plate 31 is formed by forming an aluminum foil of about 0.01 mm into a corrugated plate shape. Since the heat radiating plate 31 having the corrugated plate structure has a large strength, the diagonally extending brace-like portion 16a located just above the ballast 27 on the ceiling wall 16 faces upward as shown in FIGS. It is curved so as to be convex. As a result, the portions of the heat radiating plate 31 other than the both ends to which the screws 28 are tightened maintain the corrugated plate structure without being crushed.
【００１７】図４に示されるように放熱板３１の幅Ａ
は、安定器２７の幅Ｂよりも広く、それにより、放熱板
３１の両側縁３１ａは安定器２７の両側縁よりも夫々少
し突出されている。As shown in FIG. 4, the width A of the heat sink 31 is
Is wider than the width B of the ballast 27, so that both side edges 31a of the heat sink 31 are slightly protruded from the both side edges of the ballast 27, respectively.
【００１８】図１に示されるように天井壁１６には、多
数の第３放熱孔３２、２個の大形放熱孔３３、２個の取
付け孔３４等の各種の孔が開けられている。各第３放熱
孔３２は、例えば小径な丸孔からなり、前記筋交い状部
分１６ａの両側に沿って夫々一定間隔で並設されてい
る。それにより、これら多数の第３放熱孔３２の夫々の
一部と放熱板３１の側縁３１ａとが互いに臨んでラップ
されている。なお、このラップ寸法Ｌは第３放熱孔３２
の孔径の 1/3程度を最大とすることが望ましい。しか
も、各第３放熱孔３２は、夫々の一部が、器具本体１１
を上方から見たときに安定器２７の側部と重なるように
配設されている。なお、器具本体１１の対角線方向に並
んだ２列の第３放熱孔３２間の部分が、前記天井壁１６
における筋交い状部分１６ａをなしている。As shown in FIG. 1, various holes such as a large number of third heat radiating holes 32, two large heat radiating holes 33, and two mounting holes 34 are formed in the ceiling wall 16. Each of the third heat radiation holes 32 is formed of, for example, a small-diameter round hole, and is arranged at regular intervals along both sides of the brace-shaped portion 16a. Thereby, a part of each of these many third heat radiation holes 32 and the side edge 31a of the heat radiation plate 31 are wrapped facing each other. Note that the wrap dimension L is the third heat radiation hole 32.
It is desirable to maximize the hole diameter to about 1/3. In addition, each of the third heat radiation holes 32 is partially
Is arranged so as to overlap the side of the ballast 27 when viewed from above. The portion between the two rows of the third heat radiating holes 32 arranged in the diagonal direction of the appliance main body 11 corresponds to the ceiling wall 16.
Of the strut 16a.
【００１９】２個の大形放熱孔３３は筋交い状部分１６
ａの両側に夫々別々に設けられている。言い換えれば、
筋交い状部分１６ａに沿って天井１６にそのほぼ対角線
上に配置された安定器２７に対して２個の大形放熱孔３
３は対称的に設けられている（図1参照）。これらの大
形放熱孔３３は第３放熱孔３２よりも遥かに大径な丸孔
で形成されている。両大形放熱孔３３は、器具本体１１
の天井壁１６における通風性を良くするために設けら
れ、これらにより、前記けい光ランプ２０を熱源として
形成され反射板１８の周囲を通って上昇する空気流を主
として通し、器具本体１１全体の温度上昇を低く抑制で
きるようになっている。The two large heat radiating holes 33 are provided in the strut-like portion 16.
a are separately provided on both sides . In other words,
Its diagonal to the ceiling 16 along the brace 16a
Two large heat radiating holes 3 for the ballast 27 arranged above
3 are provided symmetrically (see FIG. 1). These large
The heat dissipation hole 33 is formed as a round hole having a diameter much larger than that of the third heat dissipation hole 32. Both large heat radiating holes 33 are connected to the appliance body 11.
In order to improve the ventilation of the ceiling wall 16 of the instrument body 11, an air flow formed by using the fluorescent lamp 20 as a heat source and rising through the periphery of the reflector 18 is mainly passed therethrough, and the temperature of the entire instrument body 11 is controlled. The rise can be kept low.
【００２０】２個の取付け孔３４には、天井スラブから
下向きに突設された図示しない取付けボルト夫々が通さ
れて、これらボルトにその下方から螺合されるナットを
介して器具本体１１が天井に埋め込み状態に取付けられ
るようになっている。なお、図１および図２中１１ａは
天井板３５の孔縁に引っ掛けられる本体フランジ、２２
ａはルーバ２２のルーバ枠の下端から一体に張り出され
本体フランジ１１ａを覆い隠すカバーフランジである。Through the two mounting holes 34, mounting bolts (not shown) projecting downward from the ceiling slab are passed, and the apparatus main body 11 is connected to the ceiling through nuts screwed into these bolts from below. It is designed to be mounted in an embedded state. 1 and 2, a reference numeral 11a denotes a main body flange hooked on a hole edge of the ceiling plate 35;
Reference numeral a denotes a cover flange which is integrally extended from the lower end of the louver frame of the louver 22 and covers the main body flange 11a.
【００２１】前記構成の照明器具の使用時に、けい光ラ
ンプ２０およびこれより上方位置の安定器２７は夫々発
熱するが、以下記述する作用によって器具本体１１およ
び安定器２７等の温度上昇を低く抑制できる。When the luminaire having the above-described configuration is used, the fluorescent lamp 20 and the ballast 27 located above the fluorescent lamp 20 generate heat. However, the rise in temperature of the luminaire main body 11 and the ballast 27 is suppressed by the operation described below. it can.
【００２２】すなわち、けい光ランプ２０の発熱に伴い
器具本体１１の下面開口から流入した空気は、反射板１
８を迂回して、この上方へ上昇する空気流を形成すると
ともに、器具本体１１の周壁に設けられた第２放熱孔２
６を通って器具本体１１内に流入した空気は、反射板１
８をその外面（被反射面）から冷却した後に上昇される
空気流を形成する。That is, the air that has flowed in through the lower opening of the instrument body 11 due to the heat generated by the fluorescent lamp 20
8 to form an airflow that rises upward, and a second radiating hole 2 provided in the peripheral wall of the instrument body 11.
6 flows into the instrument body 11 through the reflector 1
8 forms an airflow which is raised after cooling from its outer surface (reflected surface).
【００２３】これらの空気流は、主として天井壁１６の
大形放熱孔３３を通って器具本体１１外に排出される
他、器具本体１１の周壁に設けられた第１放熱孔２５等
を通って器具本体１１外に排出される。このように空気
が器具本体１１内を容易に流れるから、それにより、け
い光ランプ２０および反射板１８等を効果的に空冷し
て、これらの温度上昇を少なくできる。These air flows are mainly discharged to the outside of the appliance main body 11 through the large heat radiation holes 33 of the ceiling wall 16 and also to the first heat radiation holes 25 provided on the peripheral wall of the appliance main body 11 and the like. It is discharged out of the instrument body 11. As described above, since the air easily flows in the instrument body 11, the fluorescent lamp 20 and the reflecting plate 18 and the like can be effectively air-cooled and the temperature rise thereof can be reduced.
【００２４】また、安定器２７の発熱に伴い前記上昇気
流のうちの一部は、第３放熱孔３２を通って器具本体１
１外に排出される。ところで、放熱板３１の側縁３１ａ
は第３放熱孔３２の夫々の一部に臨んでいるので、これ
ら第３放熱孔３２を通る空気流に放熱板３１を直接晒し
て、通過する空気流に安定器２７の熱を速やかに放出で
きる。A part of the rising air current is generated by the heat generated by the ballast 27 and passes through the third heat radiating hole 32.
It is discharged outside. By the way, the side edge 31a of the heat sink 31
Faces a part of each of the third heat radiating holes 32, so that the heat radiating plate 31 is directly exposed to the air flow passing through the third heat radiating holes 32, and the heat of the ballast 27 is quickly released to the passing air flow. it can.
【００２５】すなわち、放熱板３１は熱伝導率がよいの
で、安定器２７の熱を速やかに吸熱できるとともに、そ
の熱を既述のように第３放熱孔３２を通る空気流に直接
放出できるから、安定器２７を速やかに空冷できる。That is, since the heat radiating plate 31 has a good thermal conductivity, the heat of the ballast 27 can be quickly absorbed and the heat can be directly discharged to the airflow passing through the third heat radiating hole 32 as described above. The ballast 27 can be quickly cooled by air.
【００２６】しかも、本実施例においては、放熱板３１
が波板構造であって、その殆どの部分は潰れていないの
で、放熱板３１の放熱面積を大きく確保できる。加え
て、第３放熱孔３２を通る空気の一部が安定器２７と放
熱板３１との間に形成される幅方向のトンネル状空間Ｄ
（図５参照）を通り抜ける。したがって、より一層効果
的に安定器２７を空冷できる。Moreover, in this embodiment, the heat sink 31
Has a corrugated plate structure, and since most of the portion is not crushed, a large heat radiation area of the heat radiation plate 31 can be secured. In addition, a part of the air passing through the third heat radiating hole 32 forms a tunnel-like space D in the width direction formed between the ballast 27 and the heat radiating plate 31.
(See FIG. 5). Therefore, the ballast 27 can be more effectively air-cooled.
【００２７】さらに、放熱板３１は天井壁１６の筋交い
状部分１６ａの内面に密接されていいるので、この放熱
板３１を介して安定器２７の熱を速やかに天井壁１６に
伝導して、天井壁１６全体から放出できる。Further, since the heat radiating plate 31 is in close contact with the inner surface of the brace-shaped portion 16a of the ceiling wall 16, the heat of the ballast 27 is quickly transmitted to the ceiling wall 16 via the heat radiating plate 31 and It can be released from the entire wall 16.
【００２８】したがって、以上のような空冷作用と天井
壁１６への熱伝導作用との相乗効果により、安定器２７
を効率良く冷却して、その温度上昇を少なくできる。Therefore, the synergistic effect of the air cooling operation and the heat conduction operation to the ceiling wall 16 as described above allows the stabilizer 27
Can be cooled efficiently and the temperature rise can be reduced.
【００２９】また、本実施例の器具本体１１の構成にお
いては、その天井壁１６が対角線方向に延びる筋交い状
部分１６ａを備えているので、２個の大形放熱孔３３を
設けたにも拘らず、器具本体１１の強度を大きく確保で
きる。Further, in the configuration of the appliance body 11 of the present embodiment, the ceiling wall 16 is provided with the strut-like portion 16a extending diagonally, so that the two large heat radiating holes 33 are provided. Therefore, the strength of the instrument body 11 can be ensured to be large.
【００３０】なお、本発明は前記一実施例には制約され
ない。例えば放熱板３１は省略してもよく、この場合、
安定器２７の周部と放熱孔３２の夫々の一部とは、器具
本体１１を上方から見たときに重なるような位置関係に
設けられて、安定器２７の周部が、放熱孔３２の夫々の
一部に臨んで、これらの放熱孔３２を通る空気流に直接
晒され、それにより本発明の所期の目的を達成できるも
のである。The present invention is not limited to the above embodiment. For example, the heat sink 31 may be omitted, and in this case,
The peripheral part of the ballast 27 and a part of each of the heat radiating holes 32 are provided in such a positional relationship that they overlap when the appliance body 11 is viewed from above. Each part is directly exposed to the airflow passing through the heat radiating holes 32 so that the intended object of the present invention can be achieved.
【００３１】また、本発明において、けい光ランプ２０
には片口金以外に直管形その他の形式のけい光ランプを
使用できることは勿論である。In the present invention, the fluorescent lamp 20
It is a matter of course that a fluorescent lamp of a straight tube type or any other type can be used in addition to a single base.
【００３２】[0032]
【発明の効果】以上詳記したように請求項１に係る本発
明の照明器具によれば、器具本体の天井壁にその対角線
方向に並べて多数の放熱孔を設けるとともに、これら放
熱孔がなす列相互間の筋交い状部分に安定器を取付けて
この安定器を前記天井壁のほぼ対角線上に配置し、か
つ、この安定器に対して対称的な大形放熱孔を前記天井
壁に設けたから、器具本体内の熱気を天井壁を通して流
出させ易く、特に多数の放熱孔を通って排出される空気
の流れに安定器を直接晒して安定器を空冷できるから、
この安定器の温度上昇を少なくでき、しかも、天井壁の
ほぼ対角線上に安定器を配置したことにより大形放熱孔
を天井壁に設けることが可能であるとともに、こうした
大形放熱孔を設けたにも拘らず、天井壁の筋交い状部分
によって器具本体の強度を大きく確保できる。 As described above in detail, according to the lighting fixture of the present invention according to the first aspect, the diagonal line is provided on the ceiling wall of the fixture main body.
A large number of heat radiation holes are provided side by side
Attach a ballast to the brace between the rows of hot holes
This ballast is placed approximately diagonally on the ceiling wall,
One large radiator hole symmetrical to the ballast
Because it was installed on the wall, the hot air inside the instrument body flows through the ceiling wall.
The ballast can be easily cooled , especially because the ballast can be air-cooled by directly exposing the ballast to the flow of air exhausted through a large number of radiating holes .
Ki de reduce the temperature rise of the ballast, moreover, of the ceiling wall
Large heat dissipation holes due to ballasts arranged almost diagonally
Can be installed on the ceiling wall,
Despite the provision of large heat dissipation holes, the brace-shaped part of the ceiling wall
Thereby, the strength of the instrument main body can be largely secured.
【００３３】また、請求項２に係る本発明の照明器具に
よれば、波板状放熱板を介して安定器の熱を速やかに器
具本体の天井壁に熱伝導させるとともに、放熱孔を通っ
て外部へ排出される空気の流れに波板状放熱板を直接晒
して、安定器の熱を放出して空冷できるから、この安定
器の温度上昇を更に少なくできる。According to the lighting apparatus of the second aspect of the present invention, the heat of the ballast is quickly conducted to the ceiling wall of the apparatus main body via the corrugated heat radiating plate, and is passed through the heat radiating hole. Since the corrugated radiator plate is directly exposed to the flow of the air discharged to the outside, the heat of the ballast can be released and air-cooled, so that the temperature rise of the ballast can be further reduced.
【図１】本発明の一実施例に係る天井埋め込み形照明器
具の構成を一部を切欠して示す平面図。FIG. 1 is a partially cutaway plan view showing a configuration of a ceiling-mounted lighting device according to an embodiment of the present invention.
【図２】同実施例に係る照明器具の構成を一部断面し図
１中矢印Ｚ方向から見て示す矢視図。FIG. 2 is an arrow view showing a part of the configuration of the lighting apparatus according to the embodiment and viewed from an arrow Z direction in FIG. 1;
【図３】同実施例に係る照明器具の構成を一部断面し図
１中矢印Ｙ方向から見て示す矢視図。FIG. 3 is an arrow view showing a part of the configuration of the lighting apparatus according to the embodiment and viewed from an arrow Y direction in FIG. 1;
【図４】同実施例に係る安定器と放熱板との関係を示す
斜視図。FIG. 4 is a perspective view showing the relationship between the ballast and the heat sink according to the embodiment.
【図５】図２中Ｘ部を拡大して示す断面図。FIG. 5 is an enlarged sectional view showing an X part in FIG. 2;
【図６】（Ａ）は従来例に係る照明器具の構成を示す平
面図。（Ｂ）は同従来例に係る照明器具の構成を一部断
面し図６（Ａ）中矢印Ｗ方向から見て示す矢視図。
（Ｃ）は同従来例に係る照明器具の構成を一部断面し図
６（Ａ）中矢印Ｖ方向から見て示す矢視図。FIG. 6A is a plan view showing a configuration of a lighting device according to a conventional example. FIG. 7B is a partial cross-sectional view of the configuration of the lighting apparatus according to the conventional example, viewed from the direction of the arrow W in FIG.
FIG. 6C is a partial cross-sectional view of the configuration of the lighting apparatus according to the conventional example, as viewed from the direction of arrow V in FIG.
１１…器具本体、 １６…天井壁、１６ａ…筋交い状部分、 ２７…安定器、 ３１…放熱板、 ３２…放熱孔、３３…大形放熱孔 。11: Instrument body, 16: Ceiling wall, 16a: Brace-shaped part, 27: Ballast , 31: Heat sink, 32: Heat sink, 33: Large heat sink .
Claims (2)
のほぼ対角線方向に沿う多数の放熱孔を前記天井壁に並
設するとともに、これら放熱孔がなす２列の放熱孔列間
の天井壁部分を前記対角線方向に延びる筋交い状部分と
し、かつ、この筋交い状部分に対して対称的に大形放熱
孔を前記天井壁に設けた器具本体と、 前記対角線方向に延びる長方形状をなし、前記筋交い状
部分の内面に重ねられるとともに、その周部が前記器具
本体を上方から見たときに前記多数の放熱孔の夫々の一
部と重なるように前記天井壁に取付けられた安定器と、 を具備したことを特徴とする 照明器具。1. A box shape having a ceiling wall, wherein the ceiling wall
A large number of radiating holes along the diagonal direction of
Between the two rows of heat radiation holes
A brace-like portion extending the ceiling wall portion in the diagonal direction
And large heat dissipation symmetrically to this strut
An appliance body having holes in the ceiling wall, and a rectangular shape extending in the diagonal direction,
Part of the device
When the main body is viewed from above, one of each of the large number of heat radiating holes is provided.
Luminaires with ballast mounted to the ceiling wall so as to overlap the part, characterized by comprising a.
熱板を、前記筋交い状部分と前記安定器との間にこれら
で挟んで配置するとともに、この放熱板の周部を前記多
数の放熱孔の夫々の一部に臨ませたことを特徴とする請
求項１記載の照明器具。2. A corrugated radiator plate having a width wider than the width of the ballast is disposed between the brace-shaped portion and the ballast, and a peripheral portion of the radiator plate is formed by 2. The lighting fixture according to claim 1, wherein the lighting fixture faces part of each of the plurality of heat radiation holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5104783A JP3033388B2 (en) | 1993-04-30 | 1993-04-30 | lighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5104783A JP3033388B2 (en) | 1993-04-30 | 1993-04-30 | lighting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06314516A JPH06314516A (en) | 1994-11-08 |
| JP3033388B2 true JP3033388B2 (en) | 2000-04-17 |
Family
ID=14390075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5104783A Expired - Fee Related JP3033388B2 (en) | 1993-04-30 | 1993-04-30 | lighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3033388B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011117996A1 (en) * | 2010-03-25 | 2011-09-29 | 三菱電機株式会社 | Elevator car interior illumination apparatus |
-
1993
- 1993-04-30 JP JP5104783A patent/JP3033388B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06314516A (en) | 1994-11-08 |
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