JP5482308B2 - LED tunnel lighting equipment - Google Patents

LED tunnel lighting equipment Download PDF

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JP5482308B2
JP5482308B2 JP2010051173A JP2010051173A JP5482308B2 JP 5482308 B2 JP5482308 B2 JP 5482308B2 JP 2010051173 A JP2010051173 A JP 2010051173A JP 2010051173 A JP2010051173 A JP 2010051173A JP 5482308 B2 JP5482308 B2 JP 5482308B2
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light source
led light
led
source devices
instrument body
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JP2011187304A (en
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真佐樹 堀越
浩二 内田
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Iwasaki Denki KK
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/101—Outdoor lighting of tunnels or the like, e.g. under bridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明は、ＬＥＤを光源とするＬＥＤトンネル照明器具に関する。   The present invention relates to an LED tunnel luminaire using an LED as a light source.

トンネルには複数の照明器具が配置されており、従来、トンネルの壁面に設けられる器具本体に、光源たるランプを内蔵し、器具本体の前面を塞ぐ透明板を通して路面を照明するトンネル照明器具が知られている（例えば、特許文献１参照）。   Tunnels have multiple lighting fixtures. Conventionally, tunnel lighting fixtures that illuminate the road surface through a transparent plate that covers the front of the fixture body with a lamp built in the fixture body on the wall of the tunnel are known. (For example, refer to Patent Document 1).

特開２００５−２０３３０２号公報JP-A-2005-203302

ところで、近年では、光源の長寿命化及びメンテナンス費用の削減等を図るために、ランプに代えてＬＥＤを光源としたものが実用されている。
しかしながら、ＬＥＤは温度が高くなるほど寿命が短くなるため、光源にＬＥＤを用いる場合には、該ＬＥＤの放熱対策が重要となる。したがって、十分な放熱性が得られるように、器具本体を例えば熱伝導性の良いアルミニウムで形成することが考えられるが、アルミニウムは、トンネル内の漏水（温泉成分を含む水等）やトンネル外の車道に散布される融雪剤の付着等により腐食されやすい。また、放熱性を向上させるため、器具本体内に比較的大きな放熱フィンを設けることが考えられるが、器具本体をトンネルの建築限界より大きくすることはできない。
本発明は、上述した事情に鑑みてなされたものであり、小型、かつ、耐食性・放熱性に優れたＬＥＤトンネル照明器具を提供することを目的とする。 By the way, in recent years, in order to extend the life of the light source, reduce maintenance costs, and the like, LED light sources instead of lamps have been put into practical use.
However, since the lifetime of the LED becomes shorter as the temperature becomes higher, when the LED is used as the light source, it is important to take measures against heat radiation of the LED. Therefore, it is conceivable to form the instrument body with, for example, aluminum with good thermal conductivity so that sufficient heat dissipation can be obtained, but aluminum leaks in the tunnel (water containing hot spring components, etc.) and outside the tunnel. Easily corroded due to adhesion of snow melting agent sprayed on the roadway. In order to improve heat dissipation, it is conceivable to provide a relatively large heat radiating fin in the instrument body, but the instrument body cannot be made larger than the construction limit of the tunnel.
This invention is made | formed in view of the situation mentioned above, and aims at providing the LED tunnel lighting fixture which was small and excellent in corrosion resistance and heat dissipation.

上記目的を達成するために、本発明は、ＬＥＤ光源を内蔵し、前面を塞ぐ透明板を有した器具本体を備え、前記器具本体の背面側に設けた固定脚をトンネルの壁面や天井面に固定し、前記器具本体の背面と壁面や天井面の間に隙間を設けて設置されるＬＥＤトンネル照明器具において、
前記器具本体の背面に設けた開口に、当該開口を閉塞し前記器具本体と壁面や天井面の隙間に延出する放熱部材を設け、前記ＬＥＤ光源を放熱部材に設け、前記放熱部材は、前記開口を閉塞する基部と、前記開口から前記器具本体の背面側に延出する延出部とを備え、前記基部は、前記開口より大きく形成し、前記器具本体内に配置して前記器具本体の背面に固定し、前記放熱部材の基部に、パッキンを配置する溝を、前記開口の一周にわたって形成したことを特徴とする。
In order to achieve the above object, the present invention includes an instrument body having a built-in LED light source and a transparent plate for closing the front surface, and fixed legs provided on the back side of the instrument body on the wall surface or ceiling surface of the tunnel. In the LED tunnel lighting fixture that is fixed and installed with a gap between the back surface of the fixture body and the wall or ceiling surface,
The opening provided in the rear of the instrument body, the heat radiating member extending into the gap to close the opening the instrument body and the wall or ceiling surface provided, only set the LED light source to the heat radiating member, the heat radiating member, A base that closes the opening; and an extension that extends from the opening to the back side of the instrument body. The base is formed to be larger than the opening and is disposed in the instrument body so as to be disposed in the instrument body. A groove for arranging the packing is formed over the entire circumference of the opening at the base of the heat radiating member .

また、上記構成において、前記放熱部材には、前記器具本体と壁面や天井面との隙間に延出する部位に、上下に延びる溝を設けて複数の放熱フィンを形成してもよい。
また、上記構成において、前記ＬＥＤ光源が設けられたユニット取付板を、前記放熱部材に対し着脱自在に構成してもよい。 Moreover, the said structure WHEREIN: You may provide the groove | channel which extends up and down in the site | part extended to the clearance gap between the said instrument main body, a wall surface, and a ceiling surface, and may form several radiation fins in the said heat radiating member.
In the above configuration, the unit mounting plate provided with the LED light source may be configured to be detachable from the heat radiating member.

本発明によれば、器具本体の背面に設けた開口に、開口を閉塞し器具本体と壁面や天井面との隙間に延出する放熱部材を設け、ＬＥＤ光源を放熱部材に直接、或いは、導熱性のユニット取付板を挟んで設けたため、例えば、放熱部材だけをアルミニウム製にすることで、小型、かつ、放熱性・耐食性に優れたＬＥＤトンネル照明器具を実現できる。   According to the present invention, the opening provided on the back surface of the instrument main body is provided with a heat dissipation member that closes the opening and extends into the gap between the instrument main body and the wall surface or ceiling surface, and the LED light source is directly attached to the heat dissipation member or heat conduction. Therefore, for example, by making only the heat dissipating member made of aluminum, it is possible to realize a small-sized LED tunnel lighting fixture with excellent heat dissipation and corrosion resistance.

本発明の実施の形態に係るＬＥＤトンネル照明器具が設置されたトンネルを示す図であり、（Ａ）はトンネルの構成を模式的に示す断面図であり、（Ｂ）は（Ａ）に示すＬＥＤトンネル照明器具の取り付け状態を拡大して示す図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the tunnel in which the LED tunnel lighting fixture concerning embodiment of this invention was installed, (A) is sectional drawing which shows the structure of a tunnel typically, (B) is LED shown to (A). It is a figure which expands and shows the attachment state of a tunnel lighting fixture. トンネル内でのＬＥＤトンネル照明器具の配列を示す上面図である。It is a top view which shows the arrangement | sequence of the LED tunnel lighting fixture in a tunnel. ＬＥＤトンネル照明器具の構成を示す正面図である。It is a front view which shows the structure of a LED tunnel lighting fixture. 図３のＩＶ−ＩＶ断面を示す図である。It is a figure which shows the IV-IV cross section of FIG. 図３のＶ−Ｖ断面を示す図である。It is a figure which shows the VV cross section of FIG. ＬＥＤトンネル照明器具を背面側から示す斜視図である。It is a perspective view which shows a LED tunnel lighting fixture from the back side. ユニット取付板の支持構造を示す図であり、（Ａ）はＬＥＤトンネル照明器具を示す断面図であり、（Ｂ）は（Ａ）のＸ矢視図である。It is a figure which shows the support structure of a unit mounting plate, (A) is sectional drawing which shows a LED tunnel lighting fixture, (B) is a X arrow directional view of (A). 本発明の変形例に係るＬＥＤトンネル照明器具の構成を示す正面図である。It is a front view which shows the structure of the LED tunnel lighting fixture which concerns on the modification of this invention. 図８のＩＸ−ＩＸ断面を示す図である。It is a figure which shows the IX-IX cross section of FIG.

以下、図面を参照して本発明の実施の形態について説明する。
図１は本実施の形態に係るＬＥＤトンネル照明器具が設置されたトンネルを示す図であり、図１（Ａ）はトンネルの構成を模式的に示す断面図であり、図１（Ｂ）は図１（Ａ）に示すＬＥＤトンネル照明器具の取り付け状態を拡大して示す図である。図２は、トンネル内でのＬＥＤトンネル照明器具の配列を示す上面図である。
図１に示すように、ＬＥＤトンネル照明器具１が設置されたトンネル２は、底面（路面）に幅員が例えば約７ｍの車道３を備え、中央の中央線４（図２参照）によって、対向２車線の車線５に区画されている。このトンネル２の壁面６及び天井面９は、コンクリートにより覆われている。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a view showing a tunnel in which the LED tunnel lighting apparatus according to the present embodiment is installed, FIG. 1A is a cross-sectional view schematically showing the configuration of the tunnel, and FIG. It is a figure which expands and shows the attachment state of the LED tunnel lighting fixture shown to 1 (A). FIG. 2 is a top view showing an arrangement of LED tunnel lighting fixtures in the tunnel.
As shown in FIG. 1, a tunnel 2 in which an LED tunnel lighting device 1 is installed includes a roadway 3 having a width of, for example, about 7 m on the bottom surface (road surface), and is opposed to the center line 4 (see FIG. 2) by facing the center 2. It is divided into lanes 5 of the lane. The wall surface 6 and the ceiling surface 9 of the tunnel 2 are covered with concrete.

図１及び図２に示すように、ＬＥＤトンネル照明器具１は、路面から取付高さＨの位置に、トンネル２の中心線Ｃに対して左右の両壁面６Ａ、６Ｂのそれぞれに設置されており、ＬＥＤトンネル照明器具１を車道３の縦断方向（交通方向）に沿って取付間隔（スパン）Ｓで千鳥状に設置した、いわゆる千鳥配列、或いは、向き合せで設置した、いわゆる向き合せ配列とされている（図示例は千鳥配列）。各ＬＥＤトンネル照明器具１は、建築限界７より壁面６側に、壁面６に固定した複数本（例えば、２本）の固定脚８に、壁面６との間に隙間Ｄを空けて支持されている。なお、例えば、設計路面輝度２．３ｃｄ／ｍ2の時、取付高さＨは約５ｍ、取付間隔Ｓは約１１．５ｍに設定される。 As shown in FIGS. 1 and 2, the LED tunnel lighting device 1 is installed on each of the left and right wall surfaces 6 </ b> A and 6 </ b> B with respect to the center line C of the tunnel 2, at a mounting height H from the road surface. The LED tunnel lighting fixtures 1 are arranged in a staggered manner along the longitudinal direction (traffic direction) of the roadway 3 with a mounting interval (span) S, or a so-called staggered arrangement, or a so-called facing arrangement in which they are installed facing each other. (The example shown is a staggered arrangement). Each LED tunnel lighting device 1 is supported by a plurality of (for example, two) fixed legs 8 fixed to the wall surface 6 with a gap D between the wall surface 6 and the wall surface 6 side from the building limit 7. Yes. For example, when the design road surface brightness is 2.3 cd / m 2 , the mounting height H is set to about 5 m, and the mounting interval S is set to about 11.5 m.

図３は、ＬＥＤトンネル照明器具１の構成を示す図である。また、図４は図３のＩＶ−ＩＶ断面を示す図であり、図５は図３のＶ−Ｖ断面を示す図である。図６は、ＬＥＤトンネル照明器具１を背面側から示す斜視図である。
ＬＥＤトンネル照明器具１は、図３〜図６に示すように、筐体１０を備える。筐体１０は、前面が開口した器具本体１１と、この器具本体１１の前面に蝶番１２により開閉自在に取り付けられた平面状の蓋体１３とを備えて薄い箱型に構成されている。器具本体１１は、例えばステンレス等の耐食性に優れた材料で形成されるとともに、プレス成形等により成形されている。これにより、トンネル２（図１）内の漏水（温泉成分を含む水等）やトンネル２外の車道に散布される融雪剤の付着等によって器具本体１１が腐食することが防止される。
蓋体１３は、例えばガラス材等の透明板から形成されている。これにより、器具本体１１の前面にガラス窓が嵌め込まれた枠材を蓋体として用いる構成に比べ、前面全体に光を遮る箇所が生じないことから、器具本体１１の前面開口全体が照射開口として機能し、照明効率が高められている。 FIG. 3 is a diagram illustrating a configuration of the LED tunnel lighting device 1. 4 is a view showing a section taken along line IV-IV in FIG. 3, and FIG. 5 is a view showing a section taken along line VV in FIG. FIG. 6 is a perspective view showing the LED tunnel lighting device 1 from the back side.
As shown in FIGS. 3 to 6, the LED tunnel lighting device 1 includes a housing 10. The housing 10 includes a device main body 11 having an open front surface, and a flat lid 13 attached to the front surface of the device main body 11 by a hinge 12 so as to be openable and closable. The instrument body 11 is formed of a material having excellent corrosion resistance such as stainless steel, and is formed by press molding or the like. This prevents the instrument body 11 from corroding due to leakage of water in the tunnel 2 (FIG. 1) (water containing hot spring components, etc.) or adhesion of a snow melting agent sprayed on the roadway outside the tunnel 2.
The lid 13 is formed of a transparent plate such as a glass material. Thereby, compared with the structure which uses the frame material by which the glass window was inserted in the front surface of the instrument main body 11 as a cover body, since the location which shields light does not arise in the whole front surface, the whole front opening of the instrument main body 11 serves as an irradiation opening. Functional and lighting efficiency is enhanced.

器具本体１１の一辺には、蓋体１３の縁に掛止して、当該蓋体１３の開放を禁止する２つのフック１４が取り付けられている。器具本体１１には、蓋体１３と接触する箇所（開口縁）に、防水用のゴムパッキン１５が設けられ、内部への水等の浸入を防止する構成となっている。また、器具本体１１の背面には、２本のフラットバー１６が取り付けられており、これらのフラットバー１６の両端部に、固定脚８（図１）に取り付けるための取付穴１６ａが設けられている。筐体１０をトンネル２の壁面６（図１）に固定する際には、蓋体１３を車道３（図１）側に向け、かつ、筐体１０が交通方向とほぼ平行となるように壁にあてがい、取付穴１６ａの各々にボルト等で固定脚８に固定する。これらの蝶番１２、フック１４、及び取付穴１６ａも、例えばステンレス等の耐食性に優れた材料で形成されている。器具本体１１は、前面開口（蓋体１３）を反対側の路肩等に向けて取り付けられている。   On one side of the instrument body 11, two hooks 14 that are hooked to the edge of the lid 13 and prohibit the opening of the lid 13 are attached. The instrument main body 11 is provided with a waterproof rubber packing 15 at a location (opening edge) in contact with the lid body 13 to prevent intrusion of water or the like into the interior. In addition, two flat bars 16 are attached to the back surface of the instrument body 11, and attachment holes 16a for attaching to the fixed legs 8 (FIG. 1) are provided at both ends of these flat bars 16. Yes. When fixing the casing 10 to the wall surface 6 (FIG. 1) of the tunnel 2, the lid 13 faces the roadway 3 (FIG. 1) and the wall is so that the casing 10 is substantially parallel to the traffic direction. As a result, each of the mounting holes 16a is fixed to the fixing leg 8 with a bolt or the like. These hinges 12, hooks 14, and mounting holes 16a are also formed of a material having excellent corrosion resistance such as stainless steel. The instrument body 11 is attached with the front opening (lid 13) facing the opposite shoulder or the like.

筐体１０の内部には、所定個数（本実施の形態では１５個）のＬＥＤ２０を列状に配列してなる複数本（本実施の形態では、８本）のＬＥＤモジュール２１と、これらのＬＥＤモジュール２１に電力を供給する複数（本実施の形態では、２つ）の電源装置２２Ａ，２２Ｂと、ヒートシンク（放熱部材）２３とが配置されている。各ＬＥＤモジュール２１には、反射板２４が設けられており、これらのＬＥＤモジュール２１及び反射板２４は、ＬＥＤ光源装置（ＬＥＤ光源）２５Ａ〜２５Ｈを構成している。   Inside the housing 10, a plurality (eight in this embodiment) of LED modules 21 in which a predetermined number (15 in this embodiment) of LEDs 20 are arranged in a row, and these LEDs are arranged. A plurality (two in this embodiment) of power supply devices 22A and 22B for supplying power to the module 21 and a heat sink (heat radiating member) 23 are arranged. Each LED module 21 is provided with a reflector 24, and these LED module 21 and reflector 24 constitute LED light source devices (LED light sources) 25A to 25H.

以下、図３〜図５を参照し、ＬＥＤ光源装置２５Ａ〜２５Ｈについて詳細に説明する。
ＬＥＤ光源装置２５Ａは、筐体１０の中央部に交通方向と直交する方向（横断方向）に沿って配置されている。一対のＬＥＤ光源装置２５Ｂ，２５Ｃは器具中心Ｏから見て片側にＬＥＤ光源装置２５Ａと平行に配置され、一対のＬＥＤ光源装置２５Ｂ，２５Ｃは他方の側にＬＥＤ光源装置２５Ａと平行に配置されている。また、２本のＬＥＤ光源装置２５Ｆ，２５Ｇは下側（路面側）に交通方向に沿って一列に配置され、ＬＥＤ光源装置２５Ｈは上側（天井面９（図１）側）に交通方向に沿って配置されている。 Hereinafter, the LED light source devices 25A to 25H will be described in detail with reference to FIGS.
25 A of LED light source devices are arrange | positioned along the direction (transverse direction) orthogonal to a traffic direction in the center part of the housing | casing 10. FIG. The pair of LED light source devices 25B and 25C are arranged on one side in parallel with the LED light source device 25A as viewed from the instrument center O, and the pair of LED light source devices 25B and 25C are arranged on the other side in parallel with the LED light source device 25A. Yes. Further, the two LED light source devices 25F and 25G are arranged in a row along the traffic direction on the lower side (road surface side), and the LED light source device 25H is along the traffic direction on the upper side (ceiling surface 9 (FIG. 1) side). Are arranged.

ＬＥＤ光源装置２５Ａ〜２５Ｈは、器具本体１１の上側に寄せて配置され、ヒートシンク２３に対し着脱自在に設けられたユニット取付板（ユニット取付部）２６に固定されている。中央のＬＥＤ光源装置２５Ａは、その光が蓋体１３の平面に垂直に入射するように設けられ、ユニット取付板２６に直接取り付けられている。他のＬＥＤ光源装置２５Ｂ〜２５Ｈは、それらの光が蓋体１３の平面に対し斜めに入射するように設けられ、ＬＥＤ取付板２７を介してユニット取付板２６に取り付けられている。ＬＥＤ取付板２７は、ＬＥＤ光源装置２５Ｂ〜２５Ｈを蓋体１３に対して角度を付けて配置できるように、略く字状に形成されている。   The LED light source devices 25 </ b> A to 25 </ b> H are arranged close to the upper side of the instrument body 11 and are fixed to a unit mounting plate (unit mounting portion) 26 that is detachably provided to the heat sink 23. The central LED light source device 25 </ b> A is provided so that the light is perpendicularly incident on the plane of the lid 13 and is directly attached to the unit attachment plate 26. The other LED light source devices 25 </ b> B to 25 </ b> H are provided so that these lights are incident obliquely with respect to the plane of the lid 13, and are attached to the unit attachment plate 26 via the LED attachment plate 27. The LED mounting plate 27 is formed in a substantially square shape so that the LED light source devices 25 </ b> B to 25 </ b> H can be arranged at an angle with respect to the lid body 13.

二対のＬＥＤ光源装置２５Ｂ，２５Ｃ及びＬＥＤ光源装置２５Ｄ，２５Ｅは、それぞれ同一方向に向けて配置されるのではなく、それぞれ交通方向に対向するように設けられている。より詳細には、一対のＬＥＤ光源装置２５Ｂ，２５Ｃは、片側において、直線Ｌ１を中心に対称に配置されている。一対のＬＥＤ光源装置２５Ｄ，２５Ｅは、他方の側において、直線Ｌ２を中心に対称に配置されている。それらＬＥＤ光源装置２５Ｂ〜２５Ｅの取付角度θ１は等しく設定され、本実施の形態では、約６０度に設定されている。
２本のＬＥＤ光源装置２５Ｆ，２５ＧとＬＥＤ光源装置２５Ｈとは、横断方向に対向するように設けられている。なお、本実施の形態では、ＬＥＤ光源装置２５Ｆ，２５Ｇの取付角度θ２はＬＥＤ光源装置２５Ｂ〜２５Ｅの取付角度θ１より小さく設定され、ＬＥＤ光源装置２５Ｈの取付角度θ３はＬＥＤ光源装置２５Ｆ，２５Ｇの取付角度θ２より小さく設定されている。 The two pairs of LED light source devices 25B and 25C and the LED light source devices 25D and 25E are not arranged in the same direction, but are provided to face each other in the traffic direction. More specifically, the pair of LED light source devices 25B and 25C are arranged symmetrically about the straight line L1 on one side. The pair of LED light source devices 25D and 25E are arranged symmetrically about the straight line L2 on the other side. The mounting angle θ1 of these LED light source devices 25B to 25E is set equal, and is set to about 60 degrees in the present embodiment.
The two LED light source devices 25F and 25G and the LED light source device 25H are provided so as to face each other in the transverse direction. In the present embodiment, the mounting angle θ2 of the LED light source devices 25F and 25G is set smaller than the mounting angle θ1 of the LED light source devices 25B to 25E, and the mounting angle θ3 of the LED light source device 25H is set to that of the LED light source devices 25F and 25G. It is set smaller than the mounting angle θ2.

反射板２４は、ＬＥＤ２０の光に対して所定の反射率を有する金属板（例えばアルミニウム板）を、ＬＥＤモジュール２１を覆うカップ部３０を有するように、プレス成形等により成形されて構成されている。カップ部３０は、その内側面にてＬＥＤ２０の光を反射するものであり、ＬＥＤ２０の配列方向に沿って形成された一対の平坦状の側面２４ａを備えている。
中央のＬＥＤ光源装置２５Ａ以外のＬＥＤ光源装置２５Ｂ〜２５Ｈの反射板２４には、一方の側面２４ａの先端から、カップ部３０を狭める方向に角度を変えて延出する延出面２４ｂが形成されている。一対のＬＥＤ光源装置２５Ｂ，２５Ｃはそれらの延出面２４ｂが直線Ｌ１側に位置するように配置され、一対のＬＥＤ光源装置２５Ｄ，２５Ｅはそれらの延出面２４ｂが直線Ｌ２側に位置するように配置され、ＬＥＤ光源装置２５Ｆ〜２５Ｈはそれらの延出面２４ｂが下側（路面側）に位置するように配置されている。 The reflection plate 24 is configured by molding a metal plate (for example, an aluminum plate) having a predetermined reflectance with respect to the light of the LED 20 by press molding or the like so as to have a cup portion 30 that covers the LED module 21. . The cup part 30 reflects the light of the LED 20 on the inner side surface thereof, and includes a pair of flat side surfaces 24 a formed along the arrangement direction of the LEDs 20.
The reflecting plate 24 of the LED light source devices 25B to 25H other than the central LED light source device 25A is formed with an extending surface 24b extending from the front end of one side surface 24a at a different angle in the direction of narrowing the cup portion 30. Yes. The pair of LED light source devices 25B and 25C are arranged so that their extending surfaces 24b are located on the straight line L1 side, and the pair of LED light source devices 25D and 25E are arranged so that their extending surfaces 24b are located on the straight line L2 side. And LED light source device 25F-25H is arrange | positioned so that those extended surfaces 24b may be located below (road surface side).

ＬＥＤ光源装置２５Ａ〜２５Ｈは、これらの光が隣接するＬＥＤ光源装置２５Ａ〜２５Ｈの反射板２４によって遮られないような間隔で配置されている。特に、二対のＬＥＤ光源装置２５Ｂ，２５Ｃ及びＬＥＤ光源装置２５Ｄ，２５Ｅは、それぞれ隣接して対向配置されているため、隣接する反射板２４によって影が生じないように、ＬＥＤ光源装置２５ＢとＬＥＤ光源装置２５Ｃとの間、及び、ＬＥＤ光源装置２５ＤとＬＥＤ光源装置２５Ｅとの間は、比較的広く空けられている。
一対のＬＥＤ光源装置２５Ｂ，２５Ｃは、対向するＬＥＤ光源装置２５Ｃ，２５Ｂの光のうち、蓋体１３の内面で反射した光を路面に向けて反射する位置に配置されている。また、一対のＬＥＤ光源装置２５Ｄ，２５Ｅは、対向するＬＥＤ光源装置２５Ｅ，２５Ｄの光のうち、蓋体１３の内面で反射した光を路面に向けて反射する位置に配置されている。 The LED light source devices 25A to 25H are arranged at intervals such that these lights are not blocked by the reflecting plate 24 of the adjacent LED light source devices 25A to 25H. In particular, the two pairs of LED light source devices 25B and 25C and the LED light source devices 25D and 25E are arranged adjacent to each other so that the LED light source device 25B and the LED are prevented from being shaded by the adjacent reflector 24. A relatively wide space is provided between the light source device 25C and between the LED light source device 25D and the LED light source device 25E.
The pair of LED light source devices 25B and 25C are disposed at positions where light reflected from the inner surface of the lid body 13 is reflected toward the road surface among the light of the opposing LED light source devices 25C and 25B. In addition, the pair of LED light source devices 25D and 25E are disposed at positions that reflect the light reflected by the inner surface of the lid body 13 toward the road surface among the light of the opposing LED light source devices 25E and 25D.

このように、本実施の形態では、光源にＬＥＤ光源装置２５Ａ〜２５Ｈが用いられているため、光源にランプを用いた場合に比べ、光源を長寿命化できるとともに、光源を小型・軽量化できる。また、光源が複数本（８本）のＬＥＤ光源装置２５Ａ〜２５Ｈで構成されているため、光源を一のＬＥＤ光源装置で構成する場合に比べ、配光の自由度が向上し、希望の配光パターンを容易に実現できる。
２本のＬＥＤ光源装置２５Ｆ，２５ＧとＬＥＤ光源装置２５Ｈとは、それらの光が蓋体１３の平面に対し斜めに入射するように設けられるとともに、横断方向に対向配置されているため、ＬＥＤ光源装置２５Ｆ〜２５Ｈからの光が交差し、横断方向において広い範囲に光を照射することができる。 As described above, in the present embodiment, since the LED light source devices 25A to 25H are used as the light source, the life of the light source can be extended and the light source can be reduced in size and weight as compared with the case where the lamp is used as the light source. . In addition, since the light source is composed of a plurality of (eight) LED light source devices 25A to 25H, the degree of freedom of light distribution is improved compared to the case where the light source is composed of one LED light source device, and the desired light distribution is achieved. An optical pattern can be easily realized.
The two LED light source devices 25F and 25G and the LED light source device 25H are provided so that their lights are incident obliquely with respect to the plane of the lid body 13, and are disposed opposite to each other in the transverse direction. Lights from the devices 25F to 25H intersect and can irradiate light over a wide range in the transverse direction.

ＬＥＤ光源装置２５Ａは、その光が蓋体１３の平面に垂直に入射するように設けられているため、器具本体１１の正面を照射する。二対のＬＥＤ光源装置２５Ｂ，２５Ｃ及びＬＥＤ光源装置２５Ｄ，２５Ｅは、それらの光が蓋体１３の平面に対し斜めに入射するように設けられるとともに、それぞれ交通方向に対向配置されているため、ＬＥＤ光源装置２５Ｂ〜２５Ｅからの光Ｋが交差し、交通方向遠方を照射する。これらのＬＥＤ光源装置２５Ａ〜２５Ｅによって、交通方向において広い範囲に光を照射することができるので、ＬＥＤトンネル照明器具１の配置間隔（スパン）をより広げることができる。
ここで、蓋体１３の平面に入射する光の入射角度が大きくなるほど、すなわち、ＬＥＤ光源装置２５Ｂ〜２５Ｈの取付角度θ１〜θ３が大きくなるほど、蓋体１３の内面で反射される光の量が多くなる。本実施の形態では、ＬＥＤ光源装置２５Ｂ〜２５Ｅの取付角度θ１が約６０度に設定されているため、ＬＥＤトンネル照明器具１から放射される光の角度を交通方向の両側に約６０度として照射範囲を広げつつ、蓋体１３への入射角度が鋭角となり、蓋体１３の内面で反射されて器具本体１１内の散乱光として無効となってしまうことを抑えることができる。 The LED light source device 25 </ b> A irradiates the front surface of the instrument main body 11 because the light is provided so as to enter the plane of the lid 13 perpendicularly. Since the two pairs of LED light source devices 25B and 25C and the LED light source devices 25D and 25E are provided so that their light is incident obliquely with respect to the plane of the lid body 13, and are disposed opposite to each other in the traffic direction, Light K from the LED light source devices 25B to 25E intersects to illuminate the far direction of the traffic. Since these LED light source devices 25 </ b> A to 25 </ b> E can irradiate light over a wide range in the traffic direction, the arrangement interval (span) of the LED tunnel lighting device 1 can be further expanded.
Here, as the incident angle of the light incident on the plane of the lid body 13 increases, that is, as the mounting angles θ1 to θ3 of the LED light source devices 25B to 25H increase, the amount of light reflected on the inner surface of the lid body 13 increases. Become more. In this embodiment, since the mounting angle θ1 of the LED light source devices 25B to 25E is set to about 60 degrees, the angle of the light emitted from the LED tunnel lighting device 1 is set to about 60 degrees on both sides in the traffic direction. While increasing the range, it is possible to suppress the incident angle to the lid body 13 from becoming an acute angle, being reflected on the inner surface of the lid body 13 and becoming invalid as scattered light in the instrument body 11.

隣接するＬＥＤ光源装置２５Ｂ，２５Ｃ及びＬＥＤ光源装置２５Ｄ，２５Ｅがそれぞれ対向配置されることにより、例えば、隣接するＬＥＤ光源装置２５Ｂ，２５Ｃが他方の側の交通方向遠方に向けて配置され、隣接するＬＥＤ光源装置２５Ｄ，２５Ｅが片側の交通方向遠方に向けて配置される場合に比べ、隣接する反射板２４による影が生じ難くなる。したがって、ＬＥＤ光源装置２５Ｂ〜２５Ｅをより近づけて配置できるので、ＬＥＤトンネル照明器具１を小型化できる。   The adjacent LED light source devices 25B and 25C and the LED light source devices 25D and 25E are arranged to face each other, for example, so that the adjacent LED light source devices 25B and 25C are arranged toward the far side in the traffic direction on the other side and are adjacent to each other. Compared with the case where the LED light source devices 25D and 25E are arranged farther in the traffic direction on one side, shadows due to the adjacent reflectors 24 are less likely to occur. Therefore, since the LED light source devices 25B to 25E can be arranged closer to each other, the LED tunnel lighting device 1 can be downsized.

二対のＬＥＤ光源装置２５Ｂ，２５Ｃ及びＬＥＤ光源装置２５Ｄ，２５Ｅは、それぞれ直線Ｌ１，Ｌ２を中心に対称に対向配置されるとともに、対向相手から放射される光のうち、蓋体１３の内面（裏面）で反射される裏面反射光を路面に向けて反射する位置に配置されているため、蓋体１３の内面で反射された光も外部に放射されるので、照明効率を向上できる。片側に配置された一対のＬＥＤ光源装置２５Ｂ，２５Ｃを例（図４）に説明すると、ＬＥＤ光源装置２５Ｃから放射された光Ｋは、一部が蓋体１３を透過して透過光Ｋ１となって外部に放射され、残りが蓋体１３の内面で反射されて裏面反射光Ｋ２となる。裏面反射光Ｋ２は、対向するＬＥＤ光源装置２５Ｂの反射板２４において反射されて、再び蓋体１３に入射する入射光Ｋ３となる。入射光Ｋ３は、一部が蓋体１３を透過して透過光Ｋ４となって外部に放射される。これにより、裏面反射光を路面に向けて反射する反射板を設けない場合に比べ、ＬＥＤトンネル照明器具１の光量を約３割増加させることができる。なお、入射光Ｋ３の残りは、蓋体１３の内面で反射されて裏面反射光Ｋ５となり、この裏面反射光Ｋ５がＬＥＤ光源装置２５Ａの反射板２４にて蓋体１３に向けて反射されて、外部に放射される。   The two pairs of LED light source devices 25B and 25C and the LED light source devices 25D and 25E are arranged opposite to each other symmetrically about the straight lines L1 and L2, and the inner surface ( Since the back surface reflected light reflected by the back surface is reflected toward the road surface, the light reflected by the inner surface of the lid 13 is also radiated to the outside, so that the illumination efficiency can be improved. A pair of LED light source devices 25B and 25C arranged on one side will be described as an example (FIG. 4). A part of the light K emitted from the LED light source device 25C is transmitted through the lid body 13 to become transmitted light K1. And the rest is reflected by the inner surface of the lid body 13 to become back-surface reflected light K2. The back surface reflected light K2 is reflected by the reflecting plate 24 of the opposing LED light source device 25B, and becomes incident light K3 incident on the lid 13 again. A part of the incident light K3 is transmitted through the lid 13 to be transmitted to the outside as transmitted light K4. Thereby, compared with the case where the reflecting plate which reflects back surface reflected light toward a road surface is not provided, the light quantity of the LED tunnel lighting fixture 1 can be increased about 30%. The remainder of the incident light K3 is reflected by the inner surface of the lid body 13 to become back surface reflected light K5, and this back surface reflected light K5 is reflected toward the lid body 13 by the reflecting plate 24 of the LED light source device 25A. Radiated to the outside.

二対のＬＥＤ光源装置２５Ｂ，２５Ｃ及びＬＥＤ光源装置２５Ｄ，２５Ｅの反射板２４は、交通方向遠方に向けて光を反射可能な側面２４ａと、交通方向近方に向けて光を反射可能な延出面２４ｂとを備えているため、交通方向の光量を略均一にすることができる。また、ＬＥＤ光源装置２５Ｆ〜２５Ｈの反射板２４は、横断方向遠方に向けて光を反射可能な側面２４ａと、天井面９（図１）側に向けて光を反射可能な延出面２４ｂとを備えているため、天井面９を含む横断方向の光量を略均一にすることができる。このように、本実施の形態の反射板２４は、裏面反射光を外部放射する機能と、配光パターンを形成する機能とを兼ね備えている。
また、本実施の形態では、ＬＥＤ光源装置２５Ｂ〜２５Ｈを共通化し、ＬＥＤ光源装置２５Ａ〜２５Ｈの配置位置及び取付角度θ１〜θ３だけで配光パターンを形成している。すなわち、ＬＥＤ光源装置２５Ａは器具本体１１正面の路面を照射し、ＬＥＤ光源装置２５Ｂ〜２５Ｅは路面の交通方向遠方を照射し、ＬＥＤ光源装置２５Ｆ，２５Ｇは器具本体１１が配置された側と反対側の路肩や壁面６（図１）を照射し、ＬＥＤ光源装置２５Ｈは器具本体１１が配置された側の路肩や壁面６を照射する。このため、ＬＥＤ光源装置２５Ｂ〜２５Ｈのコストを低減できるとともに、製造や管理の手間を省くことができる。また、ＬＥＤ光源装置２５Ｆ，２５Ｇにより路肩や壁面６をむら無く照射しているので、路面輝度に対して１．５倍以上の壁面輝度を確保している。 The reflectors 24 of the two pairs of LED light source devices 25B and 25C and the LED light source devices 25D and 25E include a side surface 24a that can reflect light toward the far side in the traffic direction and an extension that can reflect light toward the near side in the traffic direction. Since the exit surface 24b is provided, the amount of light in the traffic direction can be made substantially uniform. Moreover, the reflecting plate 24 of the LED light source devices 25F to 25H includes a side surface 24a capable of reflecting light toward the far side in the transverse direction and an extending surface 24b capable of reflecting light toward the ceiling surface 9 (FIG. 1). Since it is provided, the amount of light in the transverse direction including the ceiling surface 9 can be made substantially uniform. As described above, the reflector 24 according to the present embodiment has a function of radiating back-surface reflected light to the outside and a function of forming a light distribution pattern.
In the present embodiment, the LED light source devices 25B to 25H are shared, and the light distribution pattern is formed only by the arrangement positions and the mounting angles θ1 to θ3 of the LED light source devices 25A to 25H. That is, the LED light source device 25A irradiates the road surface in front of the instrument main body 11, the LED light source devices 25B to 25E irradiate far away in the traffic direction of the road surface, and the LED light source devices 25F and 25G are opposite to the side on which the instrument main body 11 is disposed. The side road shoulder and the wall surface 6 (FIG. 1) are irradiated, and the LED light source device 25H irradiates the road shoulder and the wall surface 6 on the side where the instrument main body 11 is disposed. For this reason, while being able to reduce the cost of LED light source device 25B-25H, the effort of manufacture and management can be saved. Further, since the road light source and the wall surface 6 are evenly irradiated by the LED light source devices 25F and 25G, the wall surface luminance of 1.5 times or more is ensured with respect to the road surface luminance.

次に、図３を参照し、電源装置２２Ａ，２２Ｂについて説明する。
ユニット取付板２６の下部には、ＬＥＤ光源装置２５Ａ〜２５Ｈを器具本体１１の上側に寄せて配置したことで形成された空間Ｒに、商用電源からの電源線（不図示）を接続する端子台２８が固定されている。端子台２８は、図示しない電源ケーブルによって電源装置２２Ａ，２２Ｂに接続されている。
電源装置２２Ａ，２２Ｂは、横断方向に沿って配置され、器具本体１１の両側面にそれぞれ固定されている。２つの電源装置２２Ａ，２２は、複数本（８本）のＬＥＤ光源装置２５Ａ〜２５Ｈに供給する電力を分担している。例えば、片側に配置された電源装置２２Ａはこの電源装置２２Ａの近くに配置された４つのＬＥＤ光源装置２５Ａ〜２５Ｃ，２５Ｇに電力を供給し、他方の側に配置された電源装置２２Ｂは、残り４つのＬＥＤ光源装置２５Ｄ，２５Ｅ，２５Ｇ，２５Ｈに電力を供給するように構成される。 Next, the power supply devices 22A and 22B will be described with reference to FIG.
A terminal block for connecting a power line (not shown) from a commercial power source to a space R formed by placing the LED light source devices 25A to 25H close to the upper side of the instrument body 11 below the unit mounting plate 26. 28 is fixed. The terminal block 28 is connected to the power supply devices 22A and 22B by a power cable (not shown).
The power supply devices 22 </ b> A and 22 </ b> B are arranged along the transverse direction and are fixed to both side surfaces of the instrument main body 11. The two power supply devices 22A and 22 share power supplied to a plurality (eight) of LED light source devices 25A to 25H. For example, the power supply device 22A arranged on one side supplies power to the four LED light source devices 25A to 25C, 25G arranged near the power supply device 22A, and the power supply device 22B arranged on the other side remains. The four LED light source devices 25D, 25E, 25G, and 25H are configured to supply power.

このように、２つの電源装置２２Ａ，２２Ｂに複数本（８本）のＬＥＤ光源装置２５Ａ〜２５Ｈに供給する電力を分担させたため、電源装置２２Ａ，２２Ｂのうち一の電力供給が停止しても、他の電力供給によってＬＥＤ光源装置２５Ａ〜２５Ｈの一部を点灯させることができる。したがって、ＬＥＤトンネル照明器具１を比較的広い配置間隔（スパン）で配置した場合においても、路面輝度は低下するものの電力供給の停止による暗領域を最小限に抑えることができる。
また、片側に配置された一対の対向するＬＥＤ光源装置２５Ｂ，２５Ｃと、他方の側に配置された一対の対向するＬＥＤ光源装置２５Ｄ，２５Ｅとが異なる電源装置２２Ａ，２２Ｂに接続されているため、電源装置２２Ａ，２２Ｂのうち一の電力供給が停止しても、他の電力供給によって一対を点灯できるので、路面輝度は低下するものの交通方向の照射範囲及び輝度分布をを維持したまま、路面を照明し続けることができる。 As described above, since the power supplied to the plurality of (eight) LED light source devices 25A to 25H is shared by the two power supply devices 22A and 22B, even if one of the power supply devices 22A and 22B stops supplying power. Some of the LED light source devices 25A to 25H can be turned on by other power supply. Therefore, even when the LED tunnel lighting device 1 is arranged at a relatively wide arrangement interval (span), the road surface luminance is reduced, but the dark region due to the stop of the power supply can be minimized.
Further, the pair of opposed LED light source devices 25B and 25C arranged on one side and the pair of opposed LED light source devices 25D and 25E arranged on the other side are connected to different power supply devices 22A and 22B. Even if the power supply of one of the power supply devices 22A and 22B is stopped, the pair can be turned on by the other power supply, so the road surface brightness is reduced while maintaining the irradiation range and the brightness distribution in the traffic direction, although the road surface brightness is reduced. Can continue to illuminate.

次いで、図１及び図４を参照し、ＬＥＤトンネル照明器具１の放熱構造について説明する。
ユニット取付板２６及びＬＥＤ取付板２７は、熱伝導性に優れたアルミニウム等の材料で形成されており、これらのユニット取付板２６及びＬＥＤ取付板２７もヒートシンク２３とともに放熱部材を構成している。
ヒートシンク２３は、熱伝導性に優れたアルミダイカストあるいはアルミ鋳物として構成され、器具本体１１の背面に設けた背面開口（開口）１１ａに設けられている。ヒートシンク２３は、器具本体１１内に配置される基部２３ａと、背面開口１１ａから器具本体１１と壁面６との間の隙間Ｄに延出する延出部（部位）２３ｂとを備えている。基部２３ａは、背面開口１１ａより大きく形成され、器具本体１１内に配置されて器具本体１１の背面に固定されており、背面開口１１ａを閉塞している。延出部２３ｂには、上下に延びる溝２３ｃが設けられて、複数枚（本実施の形態では、７枚）の放熱フィン２３ｄが形成されている。ヒートシンク２３の基部２３ａには、背面開口１１ａに対応して溝２３ｅが一周にわたって形成されており、この溝２３ｅにパッキン１７を配置することで、ヒートシンク２３と背面開口１１ａとの間にパッキン１７が間挿され、器具本体１１内部への水等の侵入が防止される。 Next, the heat dissipation structure of the LED tunnel lighting device 1 will be described with reference to FIGS. 1 and 4.
The unit mounting plate 26 and the LED mounting plate 27 are formed of a material such as aluminum having excellent thermal conductivity. The unit mounting plate 26 and the LED mounting plate 27 together with the heat sink 23 constitute a heat radiating member.
The heat sink 23 is configured as an aluminum die cast or an aluminum casting excellent in thermal conductivity, and is provided in a back surface opening (opening) 11 a provided on the back surface of the instrument body 11. The heat sink 23 includes a base portion 23 a disposed in the instrument main body 11 and an extending portion (part) 23 b extending from the back surface opening 11 a to the gap D between the instrument main body 11 and the wall surface 6. The base portion 23a is formed larger than the back surface opening 11a, is disposed in the device body 11 and is fixed to the back surface of the device body 11, and closes the back surface opening 11a. The extending portion 23b is provided with a vertically extending groove 23c, and a plurality of (in this embodiment, seven) radiating fins 23d are formed. A groove 23e is formed in the base 23a of the heat sink 23 so as to correspond to the back surface opening 11a, and the packing 17 is disposed in the groove 23e so that the packing 17 is interposed between the heat sink 23 and the back surface opening 11a. Insertion of water or the like into the instrument main body 11 is prevented.

ところで、トンネル２内には、車両の通行やトンネル２内に設けられた換気用送風機によって、壁面６に沿って風が流れている。本実施の形態では、ヒートシンク２３の延出部２３ｂが器具本体１１と壁面６の隙間Ｄに配置されているため、壁面６に沿って流れる風によって冷却されるので、ＬＥＤ光源装置２５Ａ〜２５Ｈをより効果的に冷却できる。延出部２３ｂは、器具本体１１の外部に設けられているため、ヒートシンク２３全体が器具本体内に収容される場合に比べ、器具本体１１の厚みを薄くすることができる。また、延出部２３ｂに溝２３ｃを設けて複数の放熱フィン２３ｄを形成したため、ＬＥＤ光源装置２５Ａ〜２５Ｈの放熱性が高められ、ＬＥＤ光源装置２５Ａ〜２５Ｈを長寿命化できる。溝２３ｃは、上下に形成されているため、溝２３ｃに塵埃や水等が溜まるのを防止でき、その結果、ヒートシンク２３の腐食を抑制できるとともに、冷却効率を向上できる。   By the way, in the tunnel 2, the wind flows along the wall surface 6 by the passage of the vehicle and the ventilation blower provided in the tunnel 2. In the present embodiment, since the extending portion 23b of the heat sink 23 is disposed in the gap D between the instrument body 11 and the wall surface 6, the LED light source devices 25A to 25H are cooled by the wind flowing along the wall surface 6. More effective cooling. Since the extending part 23b is provided outside the instrument main body 11, the thickness of the instrument main body 11 can be made thinner than when the entire heat sink 23 is accommodated in the instrument main body. Moreover, since the groove | channel 23c was provided in the extension part 23b and the several heat radiating fin 23d was formed, the heat dissipation of LED light source device 25A-25H is improved and LED light source device 25A-25H can be extended in lifetime. Since the groove 23c is formed vertically, it is possible to prevent dust and water from accumulating in the groove 23c. As a result, corrosion of the heat sink 23 can be suppressed and cooling efficiency can be improved.

ヒートシンク２３は、放熱性に優れたアルミニウムを用いて形成されているため、トンネル２内の漏水やトンネル２外の車道に散布される融雪剤の付着等によって腐食するおそれがある。本実施の形態では、ユニット取付板２６がヒートシンク２３に対し着脱自在に設けられているため、例えば、ヒートシンク２３の腐食が進み、ヒートシンク２３を交換する必要が生じた場合にも、ＬＥＤトンネル照明器具１全体を交換する必要はなく、ユニット取付板２６を取り外すことで、ヒートシンク２３だけを交換することができる。また、ヒートシンク２３の基部２３ａは、背面開口１１ａより大きく形成されるとともに、器具本体１１内に配置されているので、ヒートシンク２３が腐食して劣化しても、器具本体１１内に留まる。   Since the heat sink 23 is formed using aluminum having excellent heat dissipation, there is a possibility that the heat sink 23 may corrode due to water leakage in the tunnel 2 or adhesion of a snow melting agent sprayed on the roadway outside the tunnel 2. In the present embodiment, since the unit mounting plate 26 is detachably provided to the heat sink 23, for example, when the corrosion of the heat sink 23 progresses and the heat sink 23 needs to be replaced, the LED tunnel lighting fixture It is not necessary to replace the entire unit 1, and only the heat sink 23 can be replaced by removing the unit mounting plate 26. Further, since the base 23a of the heat sink 23 is formed larger than the rear opening 11a and is disposed in the instrument main body 11, even if the heat sink 23 is corroded and deteriorated, it remains in the instrument main body 11.

以下、図３及び図７を参照し、ユニット取付板２６の支持構造について説明する。
図７は、ユニット取付板２６の支持構造を示す図であり、図７（Ａ）はＬＥＤトンネル照明器具１を示す断面図であり、図７（Ｂ）は図７（Ａ）のＸ矢視図である。
ヒートシンク２３の前面には、ユニット取付板２６を係止するためのユニット取付ねじ２９が複数取り付けられている。また、ヒートシンク２３の片側の前面には、ユニット取付板２６を固定するためのフック３１が設けられている。
ユニット取付板２６には、ユニット取付ねじ２９に対応した位置に、ユニット取付ねじ２９に係合する取付孔２６ａが形成されている。また、ユニット取付板２６の片側の前面には、フック３１に係合するクレセント３２がクレセント取付金具３３によって固定されている。これらフック３１、クレセント３２、及びクレセント取付金具３３は、クレセント錠３４を構成している。 Hereinafter, the support structure of the unit mounting plate 26 will be described with reference to FIGS. 3 and 7.
7 is a view showing a support structure of the unit mounting plate 26, FIG. 7A is a cross-sectional view showing the LED tunnel lighting device 1, and FIG. 7B is a view taken along an arrow X in FIG. 7A. FIG.
A plurality of unit mounting screws 29 for locking the unit mounting plate 26 are mounted on the front surface of the heat sink 23. A hook 31 for fixing the unit mounting plate 26 is provided on the front surface on one side of the heat sink 23.
A mounting hole 26 a that engages with the unit mounting screw 29 is formed in the unit mounting plate 26 at a position corresponding to the unit mounting screw 29. A crescent 32 that engages with the hook 31 is fixed to the front surface on one side of the unit mounting plate 26 by a crescent mounting bracket 33. The hook 31, the crescent 32 and the crescent mounting bracket 33 constitute a crescent lock 34.

ところで、ＬＥＤ２０の寿命は長く、また、ＬＥＤトンネル照明器具１を設置した後にその配光パターンを変更することは少ないが、ＬＥＤトンネル照明器具１を設置した後にその光量を変更する場合があり、この場合には、ＬＥＤ光源装置２５Ａ〜２５Ｈを交換する必要がある。ＬＥＤ光源装置２５Ａ〜２５Ｈを交換する際には、トンネル２（図１）内の交通が規制されることが多い。本実施の形態では、器具本体１１に対し着脱自在に設けられたユニット取付板２６に、複数のＬＥＤ光源装置２５Ａ〜２５Ｈを固定してユニット化したため、ＬＥＤ光源装置２５Ａ〜２５Ｈを交換する際には、ユニット取付板２６を交換するだけで良く、上述したようにＬＥＤ光源装置２５Ａ〜２５Ｈの配置位置や取付角度θ１〜θ３がそれぞれ異なっていても、ＬＥＤ光源装置２５Ａ〜２５Ｈの配置を調整する手間を省くことができる。これにより、ＬＥＤ光源装置２５Ａ〜２５Ｈを個別に交換する場合に比べ、ＬＥＤ光源装置２５Ａ〜２５Ｈの交換時間を短縮でき、その結果、車線５を規制する時間を短縮できる。これに加え、端子台２８もユニット取付板２６に固定してユニット化したため、ＬＥＤ光源装置２５Ａ〜２５Ｈの交換時に、端子台２８を同時に交換できる。   By the way, the life of the LED 20 is long, and the light distribution pattern is rarely changed after the LED tunnel lighting device 1 is installed, but the light amount may be changed after the LED tunnel lighting device 1 is installed. In this case, it is necessary to replace the LED light source devices 25A to 25H. When the LED light source devices 25A to 25H are replaced, traffic in the tunnel 2 (FIG. 1) is often restricted. In the present embodiment, since the plurality of LED light source devices 25A to 25H are fixed to the unit mounting plate 26 that is detachably attached to the instrument body 11, the LED light source devices 25A to 25H are replaced. Only needs to replace the unit mounting plate 26, and adjusts the arrangement of the LED light source devices 25A to 25H even if the arrangement positions and the mounting angles θ1 to θ3 of the LED light source devices 25A to 25H are different as described above. Save time and effort. Thereby, compared with the case where LED light source device 25A-25H is replaced | exchanged separately, the replacement time of LED light source device 25A-25H can be shortened, As a result, the time which regulates the lane 5 can be shortened. In addition, since the terminal block 28 is also fixed to the unit mounting plate 26 and unitized, the terminal block 28 can be replaced at the same time when the LED light source devices 25A to 25H are replaced.

ユニット取付板２６は、クレセント錠３４で固定されているため、工具を使用することなく、ユニット取付板２６を着脱できる。また。ユニット取付板２６は、複数の取付ねじ２９によって係止されているので、クレセント錠３４を解錠する際に、作業者が手でユニット取付板２６を押える必要がないので、ユニット取付板２６の着脱の作業性を向上できる。さらに、ユニット取付板２６に図示しない把手を設ければ、ユニット取付板２６の着脱の作業性をより向上できる。このようにユニット取付板２６を構成することで、メンテナンス性に優れたＬＥＤトンネル照明器具１が実現され、車線５を規制する時間をより短縮できる。   Since the unit mounting plate 26 is fixed by the crescent lock 34, the unit mounting plate 26 can be attached and detached without using a tool. Also. Since the unit mounting plate 26 is locked by a plurality of mounting screws 29, when the crescent lock 34 is unlocked, it is not necessary for the operator to press the unit mounting plate 26 by hand. Detachable workability can be improved. Furthermore, if a handle (not shown) is provided on the unit mounting plate 26, the detachability of the unit mounting plate 26 can be further improved. By configuring the unit mounting plate 26 in this way, the LED tunnel lighting fixture 1 excellent in maintainability is realized, and the time for regulating the lane 5 can be further shortened.

以上説明したように、本実施の形態によれば、器具本体１１の背面に設けた背面開口１１ａに、背面開口１１ａを閉塞し器具本体１１と壁面６の隙間Ｓに延出するヒートシンク２３を設け、ＬＥＤ光源装置２５Ａ〜２５Ｈをヒートシンク２３に直接、或いは、導熱性のユニット取付板２６を挟んで設ける構成とした。この構成により、アルミ製のヒートシンク２３が壁面６に沿って流れる風によって冷却されるので、ＬＥＤ光源装置２５Ａ〜２５Ｈをより効果的に冷却できる。また、例えば、ヒートシンク２３だけをアルミニウム製にすることで、器具本体１１の腐食を防止できる。さらに、ヒートシンク２３が器具本体１１の外部に延出するので、ヒートシンク全体が器具本体内に収容される場合に比べ、器具本体１１の厚みを薄くすることができる。   As described above, according to the present embodiment, the heat sink 23 that closes the back surface opening 11a and extends to the gap S between the device body 11 and the wall surface 6 is provided in the back surface opening 11a provided on the back surface of the device body 11. The LED light source devices 25 </ b> A to 25 </ b> H are provided directly on the heat sink 23 or with the heat conductive unit mounting plate 26 interposed therebetween. With this configuration, since the aluminum heat sink 23 is cooled by the wind flowing along the wall surface 6, the LED light source devices 25A to 25H can be more effectively cooled. Moreover, for example, corrosion of the instrument body 11 can be prevented by making only the heat sink 23 made of aluminum. Furthermore, since the heat sink 23 extends to the outside of the instrument main body 11, the thickness of the instrument main body 11 can be reduced as compared with the case where the entire heat sink is accommodated in the instrument main body.

また、本実施の形態によれば、ヒートシンク２３には、器具本体１１と壁面６の隙間Ｄに延出する延出部２３ｂに、上下に延びる溝２３ｃを設けて複数の放熱フィン２３ｄを形成する構成とした。ヒートシンク２３に放熱フィン２３ｄを形成したため、ＬＥＤ光源装置２５Ａ〜２５Ｈの放熱性が高められる。また、溝２３ｃが上下に形成されるため、溝２３ｃに塵埃や水等が溜まるのを防止でき、その結果、ヒートシンク２３の腐食を抑制できるとともに、冷却効率を向上できる。   Moreover, according to this Embodiment, the heat sink 23 is provided with the groove 23c extended up and down in the extension part 23b extended to the clearance gap D of the instrument main body 11 and the wall surface 6, and forms several radiation fin 23d. The configuration. Since the heat radiating fins 23d are formed on the heat sink 23, the heat dissipation of the LED light source devices 25A to 25H is improved. Further, since the grooves 23c are formed vertically, it is possible to prevent dust and water from accumulating in the grooves 23c. As a result, corrosion of the heat sink 23 can be suppressed and cooling efficiency can be improved.

また、本実施の形態によれば、ＬＥＤ光源装置２５Ａ〜２５Ｈが設けられたユニット取付板２６を、ヒートシンク２３に対し着脱自在に構成した。この構成により、例えば、アルミニウム製のヒートシンク２３の腐食が進み、ヒートシンク２３を交換する必要が生じた場合には、器具本体１１はそのままに、ユニット取付板２６を取り外すことで、ヒートシンク２３だけを交換することができる。   Further, according to the present embodiment, the unit mounting plate 26 provided with the LED light source devices 25 </ b> A to 25 </ b> H is configured to be detachable from the heat sink 23. With this configuration, for example, when corrosion of the heat sink 23 made of aluminum progresses and it becomes necessary to replace the heat sink 23, the heat sink 23 can be replaced by removing the unit mounting plate 26 while leaving the instrument body 11 as it is. can do.

但し、上記実施の形態は本発明の一態様であり、本発明の趣旨を逸脱しない範囲において適宜変更可能であるのは勿論である。
例えば、上記実施の形態では、８つのＬＥＤ光源装置２５Ａ〜２５Ｈを、横断方向に４つ、交通方向に３つ配置したが、ＬＥＤ光源装置の数、配置位置、及び取付角度は、希望の配光パターンに応じて適宜変更できる。例えば、設計速度が低く、比較的暗くても良いトンネル等（例えば、設計路面輝度０．７５ｃｄ／ｍ2の時、取付高さＨは約５ｍ、取付間隔Ｓは約２０ｍの設定）には、図８及び図９に示すように、比較的少数（例えば、５つ）のＬＥＤ光源装置２５Ａ〜２５Ｅを配置するとともに、これらのＬＥＤ光源装置２５Ａ〜２５Ｅを１つの電源装置２２に接続してもよい。この場合、１つのＬＥＤ光源装置２５Ａを、蓋体１３の平面に垂直に光を入射させて器具本体１１の正面を照射するように配置し、一対のＬＥＤ光源装置２５Ｂ，２５Ｃを、蓋体１３の平面に対し斜めに光Ｋを入射させるとともに互いに光Ｋを交差させて交通方向の両側遠方を照射するように、交通方向に対向配置し、一対のＬＥＤ光源装置２５Ｄ，２５Ｅを、蓋体１３の平面に対し斜めに光を入射させるとともに互いに光を交差させて横断方向の両側遠方を照射するように、横断方向に対向配置することで、広い範囲に光を照射可能にすればよい。詳述すると、ＬＥＤ光源装置２５Ａはユニット取付板２６に直接取付られており、ＬＥＤ光源装置２５Ｂ〜２５ＥはＬＥＤ取付板２７を介してユニット取付板２６に取り付けられている。また、一対のＬＥＤ光源装置２５Ｂ，２５Ｃは、器具本体１１の中央を通る直線Ｌを中心に取付角度θ１で対称配置されるとともに、対向するＬＥＤ光源装置２５Ｃ，２５Ｂの光Ｋのうち、蓋体１３の内面で反射した裏面反射光Ｋ２を路面に向けて反射する位置に配置されている。このように、ＬＥＤ光源装置が着脱自在なユニット取付板２６に固定されているため、ユニット取付板２６を交換するだけで、ＬＥＤ光源装置の数、配置位置、及び取付角度を容易に変更でき、配光パターンの変更も容易に実現可能である。 However, the above embodiment is an aspect of the present invention, and it is needless to say that the embodiment can be appropriately changed without departing from the gist of the present invention.
For example, in the above embodiment, eight LED light source devices 25A to 25H are arranged four in the transverse direction and three in the traffic direction. However, the number of LED light source devices, the arrangement position, and the mounting angle may be set as desired. It can be suitably changed according to the light pattern. For example, for tunnels that have a low design speed and may be relatively dark (for example, when the design road surface brightness is 0.75 cd / m 2 , the installation height H is about 5 m and the installation interval S is about 20 m), As shown in FIGS. 8 and 9, a relatively small number (for example, five) of LED light source devices 25 </ b> A to 25 </ b> E are arranged, and these LED light source devices 25 </ b> A to 25 </ b> E are connected to one power supply device 22. Good. In this case, one LED light source device 25A is disposed so that light is incident perpendicularly to the plane of the lid body 13 to irradiate the front surface of the instrument body 11, and the pair of LED light source devices 25B and 25C are disposed on the lid body 13. A pair of LED light source devices 25D and 25E are arranged so as to be opposed to each other in the traffic direction so that the light K is incident obliquely with respect to the plane and the light K crosses each other to illuminate both sides of the traffic direction. It is only necessary to make the light irradiable in a wide range by making the light incident obliquely with respect to the plane, and opposing each other in the transverse direction so that the lights cross each other and illuminate the far sides in the transverse direction. More specifically, the LED light source device 25 </ b> A is directly attached to the unit attachment plate 26, and the LED light source devices 25 </ b> B to 25 </ b> E are attached to the unit attachment plate 26 via the LED attachment plate 27. In addition, the pair of LED light source devices 25B and 25C are symmetrically arranged with a mounting angle θ1 about the straight line L passing through the center of the instrument body 11, and the lid body among the light K of the LED light source devices 25C and 25B facing each other. The rear surface reflected light K2 reflected by the inner surface 13 is disposed at a position where it reflects toward the road surface. Thus, since the LED light source device is fixed to the detachable unit mounting plate 26, simply replacing the unit mounting plate 26 can easily change the number, arrangement position, and mounting angle of the LED light source devices, It is also possible to easily change the light distribution pattern.

また、上記実施の形態では、反射板２４のカップ部３０は、平坦面状に形成されていたが、放物線の曲率を有する湾曲面状に形成されてもよい。
また、上記実施の形態では、ＬＥＤトンネル照明器具１をトンネル２内の両壁面６Ａ，６Ｂに配置する両側配列について例示したが、これに限らず、ＬＥＤトンネル照明器具１をトンネル２内の両壁面６Ａ，６Ｂの片側にのみ配置する片側配列としてもよい。
また、上記実施の形態では、ユニット取付板２６をヒートシンク２３に固定する固定具は、クレセント錠３４として構成されていたが、これに限定されるものではなく、例えばパチン錠として構成されてもよい。 Moreover, in the said embodiment, although the cup part 30 of the reflecting plate 24 was formed in flat surface shape, you may form in the curved surface shape which has the curvature of a parabola.
Moreover, in the said embodiment, although illustrated about the both-sides arrangement | positioning which arrange | positions the LED tunnel lighting fixture 1 in both wall surface 6A, 6B in the tunnel 2, it is not restricted to this, The LED tunnel lighting fixture 1 is both wall surfaces in the tunnel 2 It is good also as a one-sided arrangement | positioning arrange | positioned only to the one side of 6A, 6B.
Moreover, in the said embodiment, although the fixing tool which fixes the unit attachment board 26 to the heat sink 23 was comprised as the crescent lock 34, it is not limited to this, For example, you may be comprised as a snap lock. .

１ ＬＥＤトンネル照明器具
２ トンネル
６ 壁面
８ 固定脚
１１ 器具本体
１１ａ 背面開口（開口）
１３ 蓋体（透明板）
２３ ヒートシンク（放熱部材）
２３ｃ 溝
２３ｄ 放熱フィン
２５Ａ〜２５Ｈ ＬＥＤ光源装置（ＬＥＤ光源）
２６ ユニット取付板
Ｄ 隙間 DESCRIPTION OF SYMBOLS 1 LED tunnel lighting fixture 2 Tunnel 6 Wall surface 8 Fixed leg 11 Appliance main body 11a Back opening (opening)
13 Lid (transparent plate)
23 Heat sink (heat dissipation member)
23c Groove 23d Radiation fin 25A-25H LED light source device (LED light source)
26 Unit mounting plate D Clearance

Claims (3)

ＬＥＤ光源を内蔵し、前面を塞ぐ透明板を有した器具本体を備え、前記器具本体の背面側に設けた固定脚をトンネルの壁面や天井面に固定し、前記器具本体の背面と壁面や天井面の間に隙間を設けて設置されるＬＥＤトンネル照明器具において、
前記器具本体の背面に設けた開口に、当該開口を閉塞し前記器具本体と壁面や天井面の隙間に延出する放熱部材を設け、前記ＬＥＤ光源を放熱部材に設け、
前記放熱部材は、前記開口を閉塞する基部と、前記開口から前記器具本体の背面側に延出する延出部とを備え、
前記基部は、前記開口より大きく形成し、前記器具本体内に配置して前記器具本体の背面に固定し、
前記放熱部材の基部に、パッキンを配置する溝を、前記開口の一周にわたって形成したことを特徴とするＬＥＤトンネル照明器具。 An instrument body having an LED light source and a transparent plate that covers the front surface is provided, and a fixing leg provided on the back side of the instrument body is fixed to a wall surface or ceiling surface of the tunnel, and the back surface , wall surface, or ceiling of the instrument body is fixed. In LED tunnel lighting equipment installed with a gap between the surfaces,
The opening provided in the rear of the instrument body, the heat radiating member extending into the gap to close the opening the instrument body and the wall or ceiling surface is provided, set the LED light source to the heat radiating member,
The heat dissipating member includes a base portion that closes the opening, and an extending portion that extends from the opening to the back side of the instrument body,
The base is formed to be larger than the opening, disposed in the instrument body and fixed to the back of the instrument body,
The LED tunnel lighting fixture characterized by forming the groove | channel which arrange | positions packing in the base of the said heat radiating member over the perimeter of the said opening . 前記放熱部材には、前記器具本体と壁面や天井面の隙間に延出する部位に、上下に延びる溝を設けて複数の放熱フィンを形成したことを特徴とする請求項１に記載のＬＥＤトンネル照明器具。   2. The LED tunnel according to claim 1, wherein the heat dissipating member is provided with a plurality of heat dissipating fins by providing a vertically extending groove in a portion extending in a gap between the appliance main body and a wall surface or a ceiling surface. lighting equipment. 前記ＬＥＤ光源が設けられたユニット取付板を、前記放熱部材に対し着脱自在に構成したことを特徴とする請求項１又は２に記載のＬＥＤトンネル照明器具。   The LED tunnel lighting fixture according to claim 1 or 2, wherein the unit mounting plate provided with the LED light source is configured to be detachable from the heat radiating member.
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