JP6976736B2

JP6976736B2 - Light lighting device

Info

Publication number: JP6976736B2
Application number: JP2017121021A
Authority: JP
Inventors: 美香安宅
Original assignee: Stanley Electric Co Ltd
Current assignee: Stanley Electric Co Ltd
Priority date: 2017-06-21
Filing date: 2017-06-21
Publication date: 2021-12-08
Anticipated expiration: 2037-06-21
Also published as: JP2019008897A

Description

本発明はハウジングと透光性レンズとによって構成された密閉構造の灯室を有する光照明装置、特に、そのハウジンング（ヒートシンク）に関する。 The present invention relates to an optical lighting device having a light chamber having a closed structure composed of a housing and a translucent lens, particularly a housing (heat sink) thereof.

投光器等の光照明装置は、ヒートシンクとして作用するハウジング及びレンズとして作用する透光性カバーによって構成された密閉構造の灯室を有する。この場合、ハウジングには、リフレクタ、発光ダイオード（ＬＥＤ）ユニット、電源回路ユニット等が設けられる。屋外での使用を前提とした光照明装置においては、通常、灯室内の湿気を外部に排出させる呼吸孔をハウジングに設けることにより、急激な温度差が生じてもハウジング内が結露しないようにする。 An optical lighting device such as a floodlight has a light chamber having a closed structure composed of a housing acting as a heat sink and a translucent cover acting as a lens. In this case, the housing is provided with a reflector, a light emitting diode (LED) unit, a power supply circuit unit, and the like. In an optical lighting device that is intended for outdoor use, the housing is usually provided with a breathing hole that allows moisture in the lighting room to be discharged to the outside so that condensation does not occur inside the housing even if a sudden temperature difference occurs. ..

図４は従来の光照明装置のハウジングに形成された呼吸孔近傍を示し、（Ａ）は呼吸キャップ嵌合前の斜視図、（Ｂ）は呼吸キャップ嵌合後の斜視図である。（参照：特許文献１の（ａ）、（ｂ））。 4A and 4B show a vicinity of a breathing hole formed in a housing of a conventional optical lighting device, FIG. 4A is a perspective view before fitting the breathing cap, and FIG. 4B is a perspective view after fitting the breathing cap. (Reference: (a), (b) of Patent Document 1).

図４に示すように、呼吸孔１０１を形成する内側筒体１０２は３つの壁板１０３によって外側筒体１０４に結合されている。水を通さず湿気を通す防水透湿性の呼吸キャップ１０５で内側筒体１０２を嵌合することにより呼吸孔１０１を塞ぐ。このとき、外側筒体１０４は呼吸キャップ１０５に水が流れ込まないように作用する。尚、外側筒体１０４内に流れ込んで呼吸キャップ１０５に付着した水は発熱素子の点灯時に加熱されて水蒸気となり呼吸キャップ１０５からハウジング内の灯室に侵入して結露の原因となる。また、内側筒体１０２と外側筒体１０４との間に流れ込んだ水を外側筒体１０４外へ逃がすために外側筒体１０４に１つの切欠き１０４ａを設けている。 As shown in FIG. 4, the inner cylinder 102 forming the breathing hole 101 is connected to the outer cylinder 104 by three wall plates 103. The breathing hole 101 is closed by fitting the inner cylinder 102 with a waterproof / breathable breathing cap 105 that does not allow water to pass through but allows moisture to pass through. At this time, the outer cylinder 104 acts to prevent water from flowing into the breathing cap 105. The water that has flowed into the outer cylinder 104 and adheres to the breathing cap 105 is heated when the heat generating element is turned on to become water vapor, which invades the light chamber inside the housing from the breathing cap 105 and causes dew condensation. Further, one notch 104a is provided in the outer cylinder 104 in order to allow the water flowing between the inner cylinder 102 and the outer cylinder 104 to escape to the outside of the outer cylinder 104.

特開２０１４−１７１２６号公報Japanese Unexamined Patent Publication No. 2014-17126

しかしながら、上述の図４に示す従来の光照明装置においては、内側筒体１０２と外側筒体１０４との間の底面が平坦となっているので、内側筒体１０２と外側筒体１０４との間に流れ込んだ水は呼吸キャップ１０５周辺に溜まり易く、従って、外側筒体１０４の外に出にくいという課題がある。 However, in the conventional optical lighting device shown in FIG. 4 described above, since the bottom surface between the inner cylinder 102 and the outer cylinder 104 is flat, the space between the inner cylinder 102 and the outer cylinder 104 The water that has flowed into the breathing cap 105 tends to collect around the breathing cap 105, and therefore, there is a problem that the water does not easily go out of the outer cylinder 104.

また、外側筒体１０４の切欠き１０４ａが下向きになることを前提としている。従って、この光照明装置の向きを変化させて切欠き１０４ａが下向きでなくなると、内側筒体１０２と外側筒体１０４とに流れ込んだ水は外側筒体１０４から流れ出にくく、この結果、呼吸孔１０１の呼吸が停止すると共に、発熱素子の点灯によって加熱され、水蒸気となってハウジング内灯室に侵入して結露の原因となるという課題もある。 Further, it is assumed that the notch 104a of the outer cylinder 104 faces downward. Therefore, when the orientation of the optical lighting device is changed so that the notch 104a does not face downward, the water flowing into the inner cylinder 102 and the outer cylinder 104 is difficult to flow out from the outer cylinder 104, and as a result, the breathing hole 101 There is also a problem that the breathing is stopped and the heating element is heated by lighting, and it becomes water vapor and invades the lighting chamber inside the housing to cause dew condensation.

上述の課題を解決するために、本発明に係る光照明装置は、呼吸孔を有するハウジングと、ハウジングの表側の呼吸孔の周囲に設けられた山型のリング部と、リング部の周囲に設けられた複数のリブと、ハウジングの裏側に結合された透光性レンズとを具備し、ハウジングと透光性レンズとによって密閉構造の灯室を構成し、リング部の裾部はリブに到達しているものである。 In order to solve the above-mentioned problems, the optical lighting device according to the present invention is provided around a housing having a breathing hole, a mountain-shaped ring portion provided around the breathing hole on the front side of the housing, and a ring portion. It is equipped with a plurality of ribs and a translucent lens coupled to the back side of the housing, and the housing and the translucent lens form a sealed light chamber, and the hem of the ring portion reaches the ribs. Is what you are doing.

本発明によれば、山型のリング部により呼吸孔（呼吸キャップ）の周囲に水が溜まるのを防止でき、ハウジング内の結露を防止できる。 According to the present invention, the mountain-shaped ring portion can prevent water from accumulating around the breathing hole (breathing cap) and prevent dew condensation in the housing.

本発明に係る光照明装置のハウジング（ヒートシンク）の実施の形態を示し、（Ａ）、（Ｂ）は異なる方向から見た表面側斜視図、（Ｃ）は側面図である。An embodiment of a housing (heat sink) of an optical lighting device according to the present invention is shown, (A) and (B) are front side perspective views viewed from different directions, and (C) is a side view. 図１のハウジングを示し、（Ａ）は表面図、（Ｂ）は裏面図である。The housing of FIG. 1 is shown, (A) is a front view, and (B) is a back view. 図２のハウジングの断面図であり、（Ａ）は図２のＩＩＩ−ＩＩＩ線断面図、（Ｂ）は（Ａ）のグロメット嵌合図、（Ｃ）は呼吸キャップ嵌合図である。2 is a sectional view of the housing of FIG. 2, FIG. 2A is a sectional view taken along line III-III of FIG. 2, FIG. 2B is a grommet fitting diagram of FIG. 2, and FIG. 2C is a breathing cap fitting diagram. 従来の光照明装置の呼吸孔近傍を示し、（Ａ）は吸収キャップ嵌合前の斜視図、（Ｂ）は吸収キャップ嵌合後の斜視図である。The vicinity of the breathing hole of the conventional optical lighting device is shown, (A) is a perspective view before the absorption cap is fitted, and (B) is a perspective view after the absorption cap is fitted.

図１は本発明の係る光照明装置のハウジング（ヒートシンク）の実施の形態を示し、（Ａ）、（Ｂ）は異なる方向から見た表面斜視図、（Ｃ）は側面図、図２は図１のハウジングを示し、（Ａ）は表面図、（Ｂ）は裏面図、図３は図２のハウジングの断面図であり、（Ａ）は図２のＩＩＩ−ＩＩＩ線断面図、（Ｂ）は（Ａ）のグロメット嵌合図、（Ｃ）は呼吸キャップ嵌合図である。図１、図２においては、ハウジング（ヒートシンク）の裏面側には、図示しない透光性レンズが結合されて密閉構造の灯室を構成するものとする。 1A and 1B show an embodiment of a housing (heat sink) of the optical lighting device according to the present invention, (A) and (B) are surface perspective views viewed from different directions, (C) is a side view, and FIG. 2 is a view. 1 housing is shown, (A) is a front view, (B) is a back view, FIG. 3 is a sectional view of the housing of FIG. 2, (A) is a sectional view taken along line III-III of FIG. 2, (B). Is a grommet fitting diagram of (A), and (C) is a breathing cap fitting diagram. In FIGS. 1 and 2, a translucent lens (not shown) is coupled to the back surface side of the housing (heat sink) to form a light chamber having a closed structure.

ハウジングには、呼吸孔１及びグロメット孔２が設けられている。 The housing is provided with a breathing hole 1 and a grommet hole 2.

呼吸孔１の周囲には山型リング部１１が設けられている。これにより、呼吸孔１１に防水透湿性の呼吸キャップ１２（図３の（Ｃ）参照）の周囲にどの方向から水が流れ込んでも、呼吸キャップ１２の周囲に水が溜まるのを防止でき、従って、水の蒸発による水蒸気の呼吸キャップ１２内への侵入を防止できる。 A mountain-shaped ring portion 11 is provided around the breathing hole 1. This prevents water from accumulating around the breathing cap 12 no matter which direction water flows around the waterproof and breathable breathing cap 12 (see (C) in FIG. 3) into the breathing hole 11. It is possible to prevent water vapor from entering the breathing cap 12 due to evaporation of water.

また、山型のリング部１１の周囲にはリブ１３−１、１３−２、１３−３を等間隔に設ける。これにより、呼吸キャップ１２の水が流れ込むのを防止すると共に、塵をも避け、また呼吸キャップを破損から保護することができる。この場合、リブ１３−１、１３−２、１３−３の間隔を大きくすることにより水が表面張力でリブ１３−１、１３−２、１３−３の内側に溜まるのを防止する。たとえば１０ｍｍ以上の間隔を備えることでこの効果が得られる。リブ１３−１、１３−２、１３−３の隙間はハウジングが下向きを含むいかなる角度でも呼吸キャップ１２の周囲の水を流れ易くしている。尚、リブ１３−１、１３−２、１３−３の数は４以上にもなし得る。また、必ずしも等間隔である必要はない。 In addition, ribs 13-1, 13-2, and 13-3 are provided at equal intervals around the mountain-shaped ring portion 11. This prevents the water in the breathing cap 12 from flowing in, avoids dust, and protects the breathing cap from damage. In this case, increasing the spacing between the ribs 13-1, 13-2, 13-3 prevents water from accumulating inside the ribs 13-1, 13-2, 13-3 due to surface tension. For example, this effect can be obtained by providing an interval of 10 mm or more. The gaps in the ribs 13-1, 13-2, 13-3 facilitate the flow of water around the breathing cap 12 at any angle, including downwards in the housing. The number of ribs 13-1, 13-2, and 13-3 may be 4 or more. Also, it does not necessarily have to be evenly spaced.

さらに、山型リング部１１の裾部１１ａはリブ１３−１、１３−２、１３−３の根本まで到達している。これにより、呼吸キャップ１２の周囲に流れ込んだ水がリブ１３−１、１３−２、１３−３の外側に流れ易くする。 Further, the hem portion 11a of the mountain-shaped ring portion 11 reaches the roots of the ribs 13-1, 13-2, and 13-3. This makes it easier for the water that has flowed around the breathing cap 12 to flow to the outside of the ribs 13-1, 13-2, and 13-3.

グロメット孔２には、図３の（Ｂ）に示すごとく、導線（図示せず）が貫通したグロメット２１を嵌合する。 As shown in FIG. 3B, the grommet 21 through which the conducting wire (not shown) penetrates is fitted into the grommet hole 2.

上述のリング部１１、リブ１３−１、１３−２、１３−３を含むハウジングは一体成型で形成される。一体成型が可能であれば素材は問わないが、放熱性や屋外での耐久性の観点からＡｌなどの軽金属が好ましい。 The housing including the ring portion 11, the ribs 13-1, 13-2, and 13-3 described above is integrally formed. Any material can be used as long as it can be integrally molded, but a light metal such as Al is preferable from the viewpoint of heat dissipation and outdoor durability.

尚、本発明は上述の実施の自明の範囲のいかなる変更にも適用し得る。 It should be noted that the present invention may be applied to any modification of the above-mentioned self-evident scope of implementation.

本発明は、投光器の外、ＬＥＤ素子又はレーザダイオード（ＬＤ）素子を用いた一般の光照明装置、大容量タイプの光照明装置、車両用灯具等に利用できる。 INDUSTRIAL APPLICABILITY The present invention can be used not only for a floodlight, but also for a general optical lighting device using an LED element or a laser diode (LD) element, a large-capacity type optical lighting device, a vehicle lighting tool, and the like.

１：呼吸孔
１１：山型のリング部
１１ａ：裾部
１２：呼吸キャップ
１３−１、１３−２、１３−３：リブ
２：グロメット孔
２１：グロメット
１０１：呼吸孔
１０２：内側筒体
１０３：壁板
１０４：外側筒体１０４
１０４ａ：切欠き 1: Breathing hole 11: Crest-shaped ring portion 11a: Hem portion 12: Breathing caps 13-1, 13-2, 13-3: Rib 2: Grommet hole 21: Grommet 101: Breathing hole 102: Inner cylinder 103: Wall plate 104: outer cylinder 104
104a: Notch

Claims

A housing with a breathing hole and
A mountain-shaped ring portion provided around the breathing hole on the front side of the housing, and
A plurality of ribs provided around the ring portion and
With a translucent lens coupled to the back of the housing
Equipped with
The housing and the translucent lens form a sealed light chamber.
The hem of the ring portion is an optical lighting device that reaches the rib .

The optical lighting device according to claim 1 , wherein the distance between the ribs is equal to or greater than such that water does not collect between the ribs due to surface tension.

Further, an optical lighting device including a breathing cap fitted to the breathing hole.