JP5975400B2 - lighting equipment - Google Patents

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JP5975400B2
JP5975400B2 JP2013006626A JP2013006626A JP5975400B2 JP 5975400 B2 JP5975400 B2 JP 5975400B2 JP 2013006626 A JP2013006626 A JP 2013006626A JP 2013006626 A JP2013006626 A JP 2013006626A JP 5975400 B2 JP5975400 B2 JP 5975400B2
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light source
source unit
recess
light
lighting
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JP2014137933A (en
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寛 秋田
寛 秋田
光浩 瀬戸川
光浩 瀬戸川
不二雄 渋谷
不二雄 渋谷
明 三井
明 三井
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Panasonic Intellectual Property Management Co Ltd
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Description

本発明は、照明器具に関する。   The present invention relates to a lighting fixture.

近年、従来の蛍光ランプや白熱ランプに代えて発光ダイオードを光源とする照明器具が急速に普及してきている。発光ダイオードを光源とする照明器具の従来例として、特許文献1に記載のものを例示する。この照明器具は、横長且つ長尺状に形成された器具本体と、係止部材を用いて器具本体に取り付けられる光源部とを備え、器具本体の略中央部には光源部を収容するための収容凹部が全長に亘って設けられている。また光源部は、器具本体と同様に横長且つ長尺状に形成された取付部材と、複数の発光ダイオード(LED)がそれぞれ実装されて取付部材の下面に取り付けられる複数の基板と、複数の基板を覆うようにして取付部材に取り付けられるカバー部材とを有する。そして、一体に組み付けられた光源部は、その一部が器具本体の収容凹部に収容された状態で係止部材を用いて器具本体に取り付けられる。なお、カバー部材は、アクリル樹脂等の透光性材料で長尺の略半円筒状に形成され、LEDから放射される光を透過させるとともに拡散させている。   In recent years, lighting fixtures using light-emitting diodes as light sources in place of conventional fluorescent lamps and incandescent lamps are rapidly spreading. The thing of patent document 1 is illustrated as a prior art example of the lighting fixture which uses a light emitting diode as a light source. This lighting fixture includes a horizontally long and long fixture main body, and a light source portion attached to the fixture main body using a locking member, and the light source portion is accommodated in a substantially central portion of the fixture main body. A housing recess is provided over the entire length. In addition, the light source unit has a horizontally long and long mounting member, as in the case of the instrument body, a plurality of substrates each mounted with a plurality of light emitting diodes (LEDs) and attached to the lower surface of the mounting member, and a plurality of substrates. And a cover member attached to the attachment member so as to cover. And the light source part assembled | attached integrally is attached to an instrument main body using a locking member in the state in which the one part was accommodated in the accommodation recessed part of the instrument main body. The cover member is formed in a long and substantially semi-cylindrical shape with a translucent material such as acrylic resin, and transmits and diffuses the light emitted from the LED.

特開2012−3993号公報JP 2012-3993 A

ところで、特許文献1記載の従来例では、カバー部材の長手方向に沿った側端部と、器具本体の収容凹部の側壁との間に隙間が空いている。そのため、カバー部材及び器具本体の側板部(収容凹部の外側の部分)の輝度に比べて、前記隙間の部分の輝度が著しく低下してしまい、カバー部材の両脇に暗い筋が生じて見栄えが良くないという問題があった。   By the way, in the conventional example described in Patent Document 1, a gap is left between the side end portion along the longitudinal direction of the cover member and the side wall of the housing recess of the instrument body. Therefore, compared with the brightness of the cover member and the side plate part of the instrument body (the outer part of the housing recess), the brightness of the gap portion is significantly reduced, and dark streaks are formed on both sides of the cover member, so that it looks good. There was a problem that it was not good.

本発明は、上記課題に鑑みて為されたものであり、従来例に比べて見栄えの向上を図ることを目的とする。   The present invention has been made in view of the above problems, and an object thereof is to improve the appearance as compared with the conventional example.

本発明の照明器具は、光を放射する光源ユニットと、前記光源ユニットから放射される光を照明空間に向けて反射する反射部材と、前記光源ユニットと前記反射部材を保持する器具本体とを備え、前記光源ユニットと前記反射部材との間に、前記照明空間に向けて開口する凹所が形成された照明器具であって、前記光源ユニットは、基板に実装された1乃至複数の発光素子と、前記基板が取り付けられる取付部材と、透光性を有し且つ前記発光素子を覆うように前記取付部材に取り付けられるカバー部材とを具備し、前記カバー部材は、前記取付部材よりも外側に延出して前記凹所の開口面と重なる延出部を有し、前記凹所は、前記光源ユニット並びに前記開口面と対向する内壁面が反射面となっていることを特徴とする。   The lighting fixture of the present invention includes a light source unit that emits light, a reflection member that reflects light emitted from the light source unit toward an illumination space, and a fixture main body that holds the light source unit and the reflection member. A lighting fixture in which a recess opening toward the illumination space is formed between the light source unit and the reflecting member, wherein the light source unit includes one or more light emitting elements mounted on a substrate. An attachment member to which the substrate is attached, and a cover member that is translucent and attached to the attachment member so as to cover the light emitting element, and the cover member extends outward from the attachment member. It has an extending portion that extends and overlaps the opening surface of the recess, and the recess has a reflection surface on the inner wall surface facing the light source unit and the opening surface.

この照明器具において、前記カバー部材は、前記発光素子が実装されている前記基板の実装面に対向する主部と、前記主部の端から延出される前記延出部とを有し、前記延出部の厚み寸法が前記主部の厚み寸法以下に形成されることが好ましい。   In this lighting apparatus, the cover member includes a main portion facing a mounting surface of the substrate on which the light emitting element is mounted, and the extending portion extending from an end of the main portion. It is preferable that the thickness dimension of the protruding portion is formed to be equal to or less than the thickness dimension of the main portion.

この照明器具において、前記延出部は、前記凹所に対して前記反射部材の反射面よりも前記照明空間側に位置しないことが好ましい。   In this lighting apparatus, it is preferable that the extending portion is not positioned on the illumination space side with respect to the recess with respect to the reflecting surface of the reflecting member.

本発明の照明器具は、発光素子から放射されてカバー部材の内部を導光される光が、光源ユニットと前記反射部材との間に形成された凹所へ出射されると、凹所の内壁面で反射され、カバー部材の延出部を通して照明空間へ出射されるので、凹所(延出部)における輝度の低下が抑えられ、カバー部材の両端に暗い筋が生じ難くなり、その結果、従来例に比べて見栄えの向上を図ることができるという効果がある。   When the light emitted from the light emitting element and guided through the inside of the cover member is emitted to the recess formed between the light source unit and the reflecting member, the lighting fixture of the present invention Since it is reflected by the wall surface and emitted to the illumination space through the extension part of the cover member, a decrease in luminance at the recess (extension part) is suppressed, and dark streaks are less likely to occur at both ends of the cover member. There is an effect that the appearance can be improved as compared with the conventional example.

本発明に係る照明器具の実施形態を示す要部の断面図である。It is sectional drawing of the principal part which shows embodiment of the lighting fixture which concerns on this invention. 同上の分解斜視図である。It is an exploded perspective view same as the above. 同上の斜視図である。It is a perspective view same as the above. 同上の断面図である。It is sectional drawing same as the above. 同上における光源ユニットを示し、(a)は上面図、(b)は側面半断面図、(c)は下面半断面図、(d)は側面図である。The light source unit in the above is shown, (a) is a top view, (b) is a side half sectional view, (c) is a bottom half sectional view, and (d) is a side view. 同上における光源ユニットの断面図である。It is sectional drawing of the light source unit in the same as the above. 同上における点灯モジュールを示し、(a)は上面図、(b)は側面図、(c)は下面図である。The lighting module in the same as above is shown, (a) is a top view, (b) is a side view, and (c) is a bottom view. 同上における器具本体を示し、(a)は下面図、(b)は側面図、(c)は側面図である。The instrument main body in the same as above is shown, (a) is a bottom view, (b) is a side view, and (c) is a side view.

以下、天井に配設される照明器具に本発明の技術思想を適用した実施形態について説明する。したがって、本実施形態における照明空間とは、天井に配設される照明器具の下方の空間を意味している。ただし、本実施形態では発光素子として発光ダイオード(LED)を例示するが、LED以外の発光素子、例えば、有機エレクトロルミネッセンス素子などが用いられても構わない。なお、以下の説明では、特に断りの無い限り、図2において上下左右及び前後の各向きを規定する。   Hereinafter, an embodiment in which the technical idea of the present invention is applied to a lighting fixture arranged on a ceiling will be described. Therefore, the illumination space in this embodiment means the space below the luminaire arranged on the ceiling. However, in the present embodiment, a light emitting diode (LED) is exemplified as the light emitting element, but a light emitting element other than the LED, for example, an organic electroluminescence element may be used. In the following description, unless otherwise specified, the vertical and horizontal directions and the front and rear directions in FIG. 2 are defined.

本実施形態の照明器具は、図2に示すように器具本体1と、器具本体1に対して着脱自在に取り付けられる点灯モジュール2とを備える。   The lighting fixture of this embodiment is provided with the fixture main body 1 and the lighting module 2 detachably attached to the fixture main body 1 as shown in FIG.

点灯モジュール2は、複数(図示例では4つ)の光源ユニット3、複数(図示例では2つ)の点灯装置4、取付板5、複数(図示例では3つ)の反射部材6などを備える。   The lighting module 2 includes a plurality (four in the illustrated example) of light source units 3, a plurality (two in the illustrated example) of lighting devices 4, a mounting plate 5, a plurality of (three in the illustrated example) reflecting members 6, and the like. .

光源ユニット3は、図5に示すように複数(図示例では2枚)の基板31、基板31が取り付けられる取付部材32、基板31を覆うようにして取付部材32に取り付けられるカバー部材33などを有する。   As shown in FIG. 5, the light source unit 3 includes a plurality of (in the illustrated example, two) substrates 31, an attachment member 32 to which the substrates 31 are attached, a cover member 33 attached to the attachment member 32 so as to cover the substrate 31, and the like. Have.

基板31は、絶縁材料(例えば、セラミック)によって長尺の板状に形成されている。基板31の表面(下面)には、複数個のLED(発光素子)30が、基板31の短手方向における中央部において、基板31の長手方向に沿って2列に並べて実装されている(図5(c)参照)。これらのLED30は、例えば、青色光を放射するLEDチップが、蛍光材料を含む封止材(例えば、シリコーン樹脂)で封止されてなる。つまり、LEDチップから放射される光の一部が蛍光材料で波長変換され、波長変換された光(例えば、黄色光)と波長変換されなかった光(青色光)が混ざることにより、LED30から放射される光が全体として白色光となる。   The substrate 31 is formed in a long plate shape by an insulating material (for example, ceramic). A plurality of LEDs (light emitting elements) 30 are mounted on the front surface (lower surface) of the substrate 31 in two rows along the longitudinal direction of the substrate 31 at the center in the short direction of the substrate 31 (see FIG. 5 (c)). These LEDs 30 are formed, for example, by sealing an LED chip that emits blue light with a sealing material (for example, silicone resin) containing a fluorescent material. That is, a part of the light emitted from the LED chip is wavelength-converted by the fluorescent material, and the wavelength-converted light (for example, yellow light) and the light that has not been wavelength-converted (blue light) are mixed to emit from the LED 30. The emitted light becomes white light as a whole.

また、基板31表面の短手方向におけるLED30の外側に、各LED30のアノード及びカソードを電気的に接続するための導電体(図示せず)が形成されている。さらに、基板31表面の長手方向における両端にコネクタ311,312が実装され、各コネクタ311,312に前記導電体が接続されている。一方のコネクタ311は電線313を介して、後述するレセプタクルコネクタ34に接続されている。また、他方のコネクタ312は、隣の基板31に実装されているコネクタ312と接続される。   In addition, a conductor (not shown) for electrically connecting the anode and cathode of each LED 30 is formed outside the LED 30 in the short direction on the surface of the substrate 31. Further, connectors 311 and 312 are mounted on both ends of the surface of the substrate 31 in the longitudinal direction, and the conductor is connected to each of the connectors 311 and 312. One connector 311 is connected to a receptacle connector 34 to be described later via an electric wire 313. The other connector 312 is connected to the connector 312 mounted on the adjacent substrate 31.

さらに、基板31の短手方向の両端部には、厚み方向(上下方向)に貫通する矩形の挿通孔310が長手方向に沿って複数(図示例では4つ)設けられている。なお、これらの挿通孔310は、後述するように各々固定部322が挿通されるものであり、各固定部322と対応する位置に設けられている。   Further, a plurality of (four in the illustrated example) rectangular insertion holes 310 are provided along the longitudinal direction at both ends in the short direction of the substrate 31 in the thickness direction (vertical direction). Note that these insertion holes 310 are through which the fixing portions 322 are inserted as described later, and are provided at positions corresponding to the respective fixing portions 322.

取付部材32は、板金に曲げ加工を施すことにより、長尺且つ矩形板状の底壁部320と、底壁部320の左右方向(短手方向)における両端から上下方向に延出する一対の側壁部321とを有する角樋状に形成されている(図6参照)。底壁部320の略中央部には、基板31を収容するための凹所3200が全長に亘って設けられている。また、各側壁部321の先端には、互いに離れる方向に傾斜する傾斜部3210がそれぞれ全長に亘って設けられている。なお、底壁部320の長手方向における一端側に電線挿通孔3201が貫通しており、この電線挿通孔3201を通して電線313が底壁部320の上面側に引き出されている(図5参照)。   The mounting member 32 is formed by bending a sheet metal to form a long and rectangular plate-like bottom wall portion 320 and a pair of vertically extending from both ends in the left-right direction (short direction) of the bottom wall portion 320. It is formed in a square hook shape having a side wall portion 321 (see FIG. 6). A recess 3200 for accommodating the substrate 31 is provided in the substantially central portion of the bottom wall portion 320 over the entire length. In addition, an inclined portion 3210 that is inclined in a direction away from each other is provided at the tip of each side wall portion 321 over the entire length. Note that an electric wire insertion hole 3201 passes through one end side in the longitudinal direction of the bottom wall portion 320, and the electric wire 313 is drawn out to the upper surface side of the bottom wall portion 320 through the electric wire insertion hole 3201 (see FIG. 5).

また、凹所3200には、基板31の複数の挿通孔310に挿通される複数(図示例では8つ)の固定部322が、LED30を挟んで対向する位置に設けられている。これらの固定部322は、凹所3200の底を切り起こすことで鈎形に形成されている。そして、各固定部322は、基板31の挿通孔310に挿通された後、先端側がLED30から遠のく向きに曲げられることにより、凹所3200の底との間に基板31を挟み込んで固定する(図5(c)参照)。   In the recess 3200, a plurality of (eight in the illustrated example) fixing portions 322 that are inserted through the plurality of insertion holes 310 of the substrate 31 are provided at positions facing each other with the LED 30 in between. These fixing portions 322 are formed in a bowl shape by cutting and raising the bottom of the recess 3200. Each fixing portion 322 is inserted into the insertion hole 310 of the substrate 31, and then the tip side is bent away from the LED 30, whereby the substrate 31 is sandwiched between the bottom of the recess 3200 and fixed (see FIG. 5 (c)).

ここで、底壁部320の底面及び基板31の表面には、弾性材料製の反射シート35が貼り付けられている。反射シート35は、ポリエチレンテレフタレートなどの合成樹脂材料がシート状に形成されてなり、白色に着色されることで表面(接着剤が塗布されていない面)が反射面となるように形成されている。つまり、LED30から放射される光を反射シート35の反射面に反射させることで、より多くの光を照明空間に照射することができる。   Here, a reflection sheet 35 made of an elastic material is attached to the bottom surface of the bottom wall portion 320 and the surface of the substrate 31. The reflection sheet 35 is formed of a synthetic resin material such as polyethylene terephthalate in a sheet shape, and is colored so that the surface (the surface to which no adhesive is applied) is a reflection surface. . That is, by reflecting the light radiated from the LED 30 on the reflection surface of the reflection sheet 35, more light can be applied to the illumination space.

また、図5に示すように、取付部材32の底壁部320の上面側に、取付金具340を用いてレセプタクルコネクタ34が取り付けられている。レセプタクルコネクタ34は、長手方向の一端側で電線313と接続され、長手方向の他端側にプラグコネクタ(図示せず)が挿抜自在に接続される。プラグコネクタは給電線(図示せず)を介して点灯装置4に接続されており、プラグコネクタがレセプタクルコネクタ34に差込接続されることで点灯装置4と光源ユニット3が電気的に接続される。   Further, as shown in FIG. 5, the receptacle connector 34 is attached to the upper surface side of the bottom wall portion 320 of the attachment member 32 using an attachment fitting 340. The receptacle connector 34 is connected to the electric wire 313 at one end in the longitudinal direction, and a plug connector (not shown) is detachably connected to the other end in the longitudinal direction. The plug connector is connected to the lighting device 4 through a power supply line (not shown), and the lighting device 4 and the light source unit 3 are electrically connected by plugging the plug connector into the receptacle connector 34. .

カバー部材33は、図6に示すように透光性を有する材料(例えば、アクリル樹脂等)により、略半円筒形の主部330と、主部330の長手方向に沿った両端部より互いに並行するように上向きに突出した一対の突壁部331とが一体に形成されている。なお、各突壁部331の先端(上端)には、内向きに突出する突起部3310がそれぞれ一体に設けられている。また、主部330の長手方向に沿った両端部には、主部330と連なるように各突壁部331の外側まで延出された延出部332がそれぞれ一体に形成されている。そして、カバー部材33は、各突壁部331の突起部3310が、取付部材32の各傾斜部3210に係合されることにより、基板31の表面を覆うように取付部材32の下面側に取り付けられる。なお、カバー部材33は乳白色の拡散材が混入され、LED30から放射される光を拡散させて照明空間へ照射するように構成されている。   As shown in FIG. 6, the cover member 33 is made of a material having translucency (for example, acrylic resin) and is substantially parallel to each other from the substantially semi-cylindrical main portion 330 and both end portions along the longitudinal direction of the main portion 330. Thus, a pair of protruding wall portions 331 protruding upward are integrally formed. A protruding portion 3310 that protrudes inward is integrally provided at the tip (upper end) of each protruding wall portion 331. Further, at both ends along the longitudinal direction of the main portion 330, extending portions 332 extending to the outside of each protruding wall portion 331 so as to be continuous with the main portion 330 are integrally formed. Then, the cover member 33 is attached to the lower surface side of the attachment member 32 so as to cover the surface of the substrate 31 by the protrusions 3310 of each protrusion wall portion 331 being engaged with the respective inclined portions 3210 of the attachment member 32. It is done. The cover member 33 is mixed with milky white diffusing material, and is configured to diffuse the light emitted from the LED 30 and irradiate the illumination space.

ここで、側壁部321の長手方向の中央から外向きに突設された凸部3211が、突壁部331の長手方向の中央に貫通した嵌合孔3311に嵌合している(図5(b)及び図6参照)。つまり、一対の凸部3211をそれぞれ嵌合孔3311に嵌合することにより、取付部材32に対するカバー部材33の位置決めと、長手方向に沿ったカバー部材33の移動規制とが実現できる。   Here, a convex part 3211 protruding outward from the longitudinal center of the side wall part 321 is fitted in a fitting hole 3311 penetrating through the longitudinal center of the protruding wall part 331 (FIG. 5 ( b) and FIG. 6). That is, by positioning the pair of convex portions 3211 in the fitting holes 3311, positioning of the cover member 33 with respect to the attachment member 32 and movement restriction of the cover member 33 along the longitudinal direction can be realized.

また、光源ユニット3を取付板5に取り付けるため、一対の取付金具36が取付部材32の上面側に固定される。取付金具36は、板金を曲げ加工することにより、矩形板状の固定片360と、固定片360の長手方向の両端部から下向きに曲げ起こされた一対の脚片361とが一体に形成されてなる。固定片360の中央には、取付板5にねじ止めするためのねじ孔3600が設けられている。また、各脚片361には、取付部材32の側壁部321にねじ止めするためのねじ孔3610が設けられている。つまり、取付部材32の側壁部321間に収められ、カバー部材33の突壁部331に貫設されたねじ挿通孔3312と、側壁部321に貫設されたねじ挿通孔3212とに挿通された固定ねじ362が、固定片360のねじ孔3600にねじ込まれることで取付金具36が取付部材32に固定される。なお、カバー部材33の挿通孔3312は、カバー部材33の長手方向を長軸方向とする長孔状に形成されており(図5(b)参照)、カバー部材33が熱膨張した場合にねじ挿通孔3312の周辺に割れなどの不具合が生じないようにしている。   Further, in order to attach the light source unit 3 to the attachment plate 5, a pair of attachment fittings 36 are fixed to the upper surface side of the attachment member 32. The mounting bracket 36 is formed by integrally forming a rectangular plate-shaped fixed piece 360 and a pair of leg pieces 361 bent downward from both longitudinal ends of the fixed piece 360 by bending a sheet metal. Become. A screw hole 3600 for screwing to the mounting plate 5 is provided in the center of the fixed piece 360. Each leg piece 361 is provided with a screw hole 3610 for screwing to the side wall portion 321 of the attachment member 32. That is, the screw is inserted between the screw insertion hole 3312 that is housed between the side wall portions 321 of the mounting member 32 and penetrates the protruding wall portion 331 of the cover member 33, and the screw insertion hole 3212 that penetrates the side wall portion 321. The mounting bracket 36 is fixed to the mounting member 32 by the fixing screw 362 being screwed into the screw hole 3600 of the fixing piece 360. The insertion hole 3312 of the cover member 33 is formed in a long hole shape having the longitudinal direction of the cover member 33 as the major axis direction (see FIG. 5B), and is screwed when the cover member 33 is thermally expanded. This prevents a defect such as a crack from occurring around the insertion hole 3312.

2つの点灯装置4は何れも同一の構成を有しており、交流の電圧・電流を直流の電圧・電流に変換する電力変換回路や入力端子台41、2つの出力端子台42、信号端子台43などが実装されたプリント配線板を金属製のケース40に収納して構成される(図7参照)。ケース40は、角樋状に形成されたケース本体400と、ケース本体400の上に被せられる箱形のケース蓋401とを組み立てて構成される。ただし、入力端子台41、出力端子台42、信号端子台43が実装されているプリント配線板の長手方向の両端部はケース蓋401で覆われていない。なお、2つの点灯装置4は電流容量が異なっており、電流容量が大きい方の点灯装置4は、電流容量が小さい方の点灯装置4よりも長手方向の寸法が大きくなっている。以下、電流容量が大きい方(長手方向の寸法が大きい方)の点灯装置4を第1点灯送装置4Aとし、電流容量が小さい方(長手方向の寸法が小さい方)の点灯装置4を第2点灯装置4Bとする。ただし、第1点灯装置4Aと第2点灯装置4Bを区別しない場合は点灯装置4と表記する。   The two lighting devices 4 have the same configuration, and include a power conversion circuit for converting AC voltage / current into DC voltage / current, an input terminal block 41, two output terminal blocks 42, and a signal terminal block. A printed wiring board on which 43 and the like are mounted is housed in a metal case 40 (see FIG. 7). The case 40 is configured by assembling a case main body 400 formed in a square hook shape and a box-shaped case lid 401 that covers the case main body 400. However, both ends in the longitudinal direction of the printed wiring board on which the input terminal block 41, the output terminal block 42, and the signal terminal block 43 are mounted are not covered with the case lid 401. The two lighting devices 4 have different current capacities, and the lighting device 4 with the larger current capacity has a longer dimension in the longitudinal direction than the lighting device 4 with the smaller current capacity. Hereinafter, the lighting device 4 with the larger current capacity (the one with the longer dimension in the longitudinal direction) is referred to as the first lighting transmission device 4A, and the lighting device 4 with the smaller current capacity (the one with the smaller dimension in the longitudinal direction) is the second. Let it be a lighting device 4B. However, when the first lighting device 4A and the second lighting device 4B are not distinguished, they are referred to as the lighting device 4.

取付板5は、鋼板などの金属板が矩形(正方形)に加工されてなる。ただし、取付板5は、4つの辺が同じ向き(下向き)に曲げ起こされることで強度の向上が図られている。そして、4つの光源ユニット3は、長手方向に沿って互いに平行となり且つ隣の光源ユニット3との間隔が何れも等しくなるように並べた状態で取付板5の下面に固定される(図2及び図4参照)。すなわち、取付板5には複数のねじ挿通孔(図示せず)が設けられており、各ねじ挿通孔に挿通される固定ねじ50が、取付金具36の固定片360に設けられているねじ孔3600にねじ込まれることにより、光源ユニット3が取付板5に固定される。なお、取付板5には4つの窓孔53が1つの辺に沿って等間隔且つ1列に並ぶように設けられており、各光源ユニット3のレセプタクルコネクタ34がそれぞれ窓孔53を通して取付板5の上面側に露出している(図7(a)参照)。   The mounting plate 5 is formed by processing a metal plate such as a steel plate into a rectangle (square). However, the strength of the mounting plate 5 is improved by bending the four sides in the same direction (downward). The four light source units 3 are fixed to the lower surface of the mounting plate 5 in a state where they are parallel to each other along the longitudinal direction and are arranged so that the intervals between the adjacent light source units 3 are all equal (FIG. 2 and FIG. 2). (See FIG. 4). That is, the mounting plate 5 is provided with a plurality of screw insertion holes (not shown), and the fixing screws 50 inserted into the respective screw insertion holes are screw holes provided in the fixing piece 360 of the mounting bracket 36. The light source unit 3 is fixed to the mounting plate 5 by being screwed into 3600. The mounting plate 5 is provided with four window holes 53 arranged in a line at equal intervals along one side, and the receptacle connectors 34 of the respective light source units 3 pass through the window holes 53 respectively. (See FIG. 7A).

反射部材6は、隣り合う光源ユニット3の間に生じる3箇所のスペースにそれぞれ配置される。これらの反射部材6は同一の構成を有し、一対の反射板60と、各反射板60の上端から上向きに延出された一対の側板61と、各側板61の上端から水平外向きに突出する突板62とが、長方形状の金属板を曲げ加工することで一体に形成されている(図2参照)。一対の反射板60は、長手方向に沿った一方の端縁同士が繋がっており、長手方向から見てV字状に形成されている。また、各突板62の長手方向の両端近傍には、突板62の一部が切り欠かれることで差込片63が形成されている。そして、取付板5に設けられている複数の差込部51にそれぞれ差込片63が差し込まれることにより、取付板5に反射部材6が取り付けられる。なお、差込部51は、取付板5の下面側に突出するとともに片側の側面が開口した凹所からなり、側面の開口から差込片63が差し込まれる(図1参照)。   The reflecting members 6 are respectively arranged in three spaces generated between the adjacent light source units 3. These reflecting members 6 have the same configuration, and project a pair of reflecting plates 60, a pair of side plates 61 extending upward from the upper ends of the reflecting plates 60, and horizontally outward from the upper ends of the side plates 61. The projecting plate 62 is integrally formed by bending a rectangular metal plate (see FIG. 2). The pair of reflectors 60 are connected to each other at one end along the longitudinal direction, and are formed in a V shape when viewed from the longitudinal direction. Further, in the vicinity of both ends in the longitudinal direction of each protruding plate 62, a part 63 of the protruding plate 62 is cut out to form an insertion piece 63. And the reflective member 6 is attached to the attachment board 5 by the insertion piece 63 being inserted in the some insertion part 51 provided in the attachment board 5, respectively. In addition, the insertion part 51 consists of a recessed part which protrudes in the lower surface side of the attachment board 5, and the one side surface opened, and the insertion piece 63 is inserted from opening of a side surface (refer FIG. 1).

点灯装置(第1点灯装置4A及び第2点灯装置4B)は、それぞれ長手方向を光源ユニット3の長手方向と一致させ、且つ出力端子台42が配置されている側が窓孔53に近くなる向きで、互いに間隔を空けて取付板5の上面にねじ止めされる(図7参照)。そして、第1点灯装置4Aの片方の出力端子台42に接続される給電線(図示せず)には、レセプタクルコネクタ34と各別に接続される2つのプラグコネクタ(図示せず)が分岐接続されている。なお、第1点灯装置4Aのもう片方の出力端子台42に接続される給電線(図示せず)には、1つのプラグコネクタ(図示せず)のみが接続されている。   The lighting devices (first lighting device 4 </ b> A and second lighting device 4 </ b> B) each have a longitudinal direction that coincides with the longitudinal direction of the light source unit 3, and the side on which the output terminal block 42 is disposed is oriented toward the window hole 53. Then, they are screwed to the upper surface of the mounting plate 5 at intervals (see FIG. 7). The feeder line (not shown) connected to one output terminal block 42 of the first lighting device 4A is branchedly connected to the receptacle connector 34 and two plug connectors (not shown). ing. Note that only one plug connector (not shown) is connected to a power supply line (not shown) connected to the other output terminal block 42 of the first lighting device 4A.

一方、第2点灯装置4Bの片方の出力端子台42に接続される給電線(図示せず)には、1つのレセプタクルコネクタ34のみが接続されている。つまり、第1点灯装置4Aは、給電線及び3つのプラグコネクタを介して3つの光源ユニット3が接続され、これら3つの光源ユニット3を全て点灯させる。一方、第2点灯装置4Bは、給電線及び1つのプラグコネクタを介して1つの光源ユニット3に接続され、当該1つの光源ユニット3のみを点灯させる。   On the other hand, only one receptacle connector 34 is connected to a feed line (not shown) connected to one output terminal block 42 of the second lighting device 4B. That is, in the first lighting device 4A, the three light source units 3 are connected via the feeder line and the three plug connectors, and all the three light source units 3 are turned on. On the other hand, the second lighting device 4B is connected to one light source unit 3 through a power supply line and one plug connector, and lights only the one light source unit 3.

このように1つの点灯装置(第1点灯装置4A)が複数(本実施形態では3つ)の光源ユニット3を点灯させるように構成すれば、全ての光源ユニット3を1つの点灯装置で各別に点灯させる場合と比較して、点灯装置の個数を減らすことができる。故に、点灯装置と光源ユニット3の間に給電線を配線する作業の簡素化を図ることができる。しかも、本実施形態では、点灯装置4が光源ユニット3とともに取付板5に取り付けられ、点灯モジュール2として光源ユニット3と一体に器具本体1に取り付けたり、器具本体1から取り外すことができる。したがって、光源ユニット3が取付板5に取り付けられ、点灯装置4が器具本体1に取り付けられる場合と比較して、点灯装置4の交換やメンテナンスなどの作業を器具本体1から取り外した状態で行うことができる。その結果、施工作業やメンテナンス作業の作業性の向上を図ることができる。また、第1点灯装置4A並びに第2点灯装置4Bを、出力端子台42が配置されている側が窓孔53に近くなる向きで取付板5に取り付けているので、給電線を引き回す距離が短くなることで配線作業の作業性の向上を図ることもできる。   In this way, if one lighting device (first lighting device 4A) is configured to light a plurality of (three in this embodiment) light source units 3, all the light source units 3 are individually separated by one lighting device. Compared with the case of lighting, the number of lighting devices can be reduced. Therefore, it is possible to simplify the work of wiring the power supply line between the lighting device and the light source unit 3. In addition, in the present embodiment, the lighting device 4 is attached to the mounting plate 5 together with the light source unit 3, and can be attached to the instrument body 1 integrally with the light source unit 3 as the lighting module 2 or can be detached from the instrument body 1. Therefore, as compared with the case where the light source unit 3 is attached to the mounting plate 5 and the lighting device 4 is attached to the fixture body 1, work such as replacement and maintenance of the lighting device 4 is performed in a state of being removed from the fixture body 1. Can do. As a result, the workability of construction work and maintenance work can be improved. Moreover, since the 1st lighting device 4A and the 2nd lighting device 4B are attached to the attachment board 5 in the direction in which the side in which the output terminal block 42 is arrange | positioned is close to the window hole 53, the distance to which a feeder line is drawn becomes short. Therefore, the workability of the wiring work can be improved.

さらに、点灯装置4は、取付板5の厚み方向(上下方向)における投影範囲X1の少なくとも一部が、光源ユニット3の基板31の前記厚み方向における投影範囲X2と重ならないように取付板5に取り付けられている(図4参照)。したがって、点灯装置4と基板31(LED30)との間の熱電動を抑制し、点灯装置4及びLED30のそれぞれにおける温度上昇を抑えることができる。   Further, the lighting device 4 is arranged on the mounting plate 5 so that at least a part of the projection range X1 in the thickness direction (vertical direction) of the mounting plate 5 does not overlap the projection range X2 in the thickness direction of the substrate 31 of the light source unit 3. It is attached (see FIG. 4). Therefore, thermoelectricity between the lighting device 4 and the substrate 31 (LED 30) can be suppressed, and temperature rise in each of the lighting device 4 and the LED 30 can be suppressed.

器具本体1は、図2及び図8に示すように鋼板などの金属板により、下面が開口した矩形箱状に形成されている。この器具本体1において、左右方向に対向する一対の側壁が下方に向かって外向きに傾斜しており、この傾斜した部分が反射板13を構成している。また、器具本体1において、前後方向に対向する一対の側壁に、点灯モジュール2を固定するための固定片14が切り起こして形成されている。   As shown in FIGS. 2 and 8, the instrument main body 1 is formed in a rectangular box shape whose bottom surface is opened by a metal plate such as a steel plate. In the instrument main body 1, a pair of side walls facing in the left-right direction are inclined outwardly toward the lower side, and the inclined portions constitute a reflector 13. Further, in the appliance main body 1, a fixing piece 14 for fixing the lighting module 2 is cut and raised on a pair of side walls opposed in the front-rear direction.

固定片14は、長手方向の両端近くにねじ孔140がそれぞれ設けられる。そして、取付板5に設けられるねじ挿通孔(図示せず)に固定ねじ141が挿通され、各固定ねじ141が固定片14のねじ孔140にそれぞれねじ込まれることにより、器具本体1内に収納された状態で点灯モジュール2が固定片14に固定される。このとき、器具本体1の各反射板13の長手方向と、光源ユニット3の長手方向とを一致させる向きで、点灯モジュール2が器具本体1に取り付けられる。なお、ねじ挿通孔は、上下方向から見て反射部材6と重なる位置に設けられる。したがって、各反射部材6の反射板60には、固定ねじ141並びにドライバの軸を挿通するための孔(図示せず)が長手方向の両端近くに貫通している。   The fixing piece 14 is provided with screw holes 140 near both ends in the longitudinal direction. Then, fixing screws 141 are inserted into screw insertion holes (not shown) provided in the mounting plate 5, and each fixing screw 141 is screwed into the screw hole 140 of the fixing piece 14, thereby being housed in the instrument body 1. In this state, the lighting module 2 is fixed to the fixed piece 14. At this time, the lighting module 2 is attached to the fixture body 1 in a direction in which the longitudinal direction of each reflector 13 of the fixture body 1 and the longitudinal direction of the light source unit 3 are matched. Note that the screw insertion hole is provided at a position overlapping the reflecting member 6 when viewed from above and below. Therefore, the reflecting plate 60 of each reflecting member 6 has a hole (not shown) for inserting the fixing screw 141 and the shaft of the driver penetrating near both ends in the longitudinal direction.

また、器具本体1の底板10には、商用電源用の電線挿通孔100が貫通している。そして、この電線挿通孔100に挿通された電源線(図示せず)は、底板10に固定される電源端子台15に接続される。電源端子台15には、点灯装置4の入力端子台41が電線(図示せず)を介して接続されており、電源端子台15を介して点灯装置4に商用電源(交流電源)が供給される。また、底板10には信号端子台16も設けられており、電線挿通孔100に挿通された信号線(図示せず)が信号端子台16に接続される。   Further, a wire insertion hole 100 for a commercial power source passes through the bottom plate 10 of the instrument body 1. A power line (not shown) inserted through the electric wire insertion hole 100 is connected to a power terminal block 15 fixed to the bottom plate 10. An input terminal block 41 of the lighting device 4 is connected to the power terminal block 15 via an electric wire (not shown), and commercial power (AC power) is supplied to the lighting device 4 via the power terminal block 15. The The bottom plate 10 is also provided with a signal terminal block 16, and a signal line (not shown) inserted through the wire insertion hole 100 is connected to the signal terminal block 16.

さらに、底板10の中央には、吊りボルト81が挿通される複数(図示例では5つ)のボルト挿通孔101が一列に並べて設けられる。すなわち、器具本体1は、これらのボルト挿通孔101に挿通される吊りボルト81にナット82が締め付けられることにより、天井板8に設けられる埋込孔80に埋込配設される(図4参照)。なお、器具本体1の下端には、天井板8の下面に当接する矩形枠状のフランジ12が設けられている。つまり、このフランジ12は、埋込孔80の内周縁と器具本体1との間に生じる隙間を塞ぐために設けられている。   Further, a plurality (five in the illustrated example) of bolt insertion holes 101 through which the suspension bolts 81 are inserted are arranged in a line at the center of the bottom plate 10. That is, the instrument main body 1 is embedded in the embedded hole 80 provided in the ceiling board 8 by tightening the nut 82 to the suspension bolt 81 inserted through these bolt insertion holes 101 (see FIG. 4). ). A rectangular frame-like flange 12 that abuts the lower surface of the ceiling board 8 is provided at the lower end of the appliance body 1. That is, the flange 12 is provided in order to close a gap generated between the inner peripheral edge of the embedding hole 80 and the instrument body 1.

ここで、点灯モジュール2においては、光源ユニット3と取付板5の差込部51との干渉を避けるため、光源ユニット3(カバー部材33の突壁部331)と反射部材6の側板61との間に隙間(凹所52)を形成している(図1参照)。凹所52は、照明空間に向けて開口しているが、その開口面(下面)はカバー部材33の延出部332と重なって隠されている。   Here, in the lighting module 2, in order to avoid interference between the light source unit 3 and the insertion portion 51 of the mounting plate 5, the light source unit 3 (the projecting wall portion 331 of the cover member 33) and the side plate 61 of the reflecting member 6 are arranged. A gap (recess 52) is formed between them (see FIG. 1). The recess 52 opens toward the illumination space, but its opening surface (lower surface) is concealed by overlapping with the extending portion 332 of the cover member 33.

一方、光源ユニット3においては、LED30から放射されてカバー部材33の主部330に入射する光の一部が主部330の内部を導光され、延出部332及び突壁部331から凹所52へ出射される。そこで本実施形態では、凹所52の内壁面(反射部材6の側板61の表面及び取付板5の下面)を白色塗装などで反射面とすることにより、延出部332及び突壁部331から凹所52へ出射された光を反射し、延出部332を通してカバー部材33の前方(下方)へ出射させている。その結果、凹所52(延出部332)における輝度の低下が抑えられ、カバー部材33の両端に暗い筋が生じ難くなるので、従来例に比べて見栄えの向上を図ることができる。なお、カバー部材33は、延出部332の厚み寸法が主部330の厚み寸法以下に形成されることが好ましい。つまり、延出部332の厚み寸法を主部330の厚み寸法以下とすることにより、凹所52の内壁面に反射された後に延出部332を通過する光の量を増やすことができる。   On the other hand, in the light source unit 3, a part of the light emitted from the LED 30 and incident on the main part 330 of the cover member 33 is guided through the main part 330, and is recessed from the extending part 332 and the protruding wall part 331. It is emitted to 52. Therefore, in the present embodiment, the inner wall surface of the recess 52 (the surface of the side plate 61 of the reflecting member 6 and the lower surface of the mounting plate 5) is made into a reflecting surface by white coating or the like, thereby extending from the extending portion 332 and the protruding wall portion 331. The light emitted to the recess 52 is reflected and emitted to the front (downward) of the cover member 33 through the extending portion 332. As a result, a decrease in luminance at the recess 52 (extension portion 332) is suppressed, and dark streaks are unlikely to occur at both ends of the cover member 33. Therefore, the appearance can be improved compared to the conventional example. The cover member 33 is preferably formed so that the thickness dimension of the extending part 332 is equal to or less than the thickness dimension of the main part 330. That is, by setting the thickness dimension of the extension part 332 to be equal to or less than the thickness dimension of the main part 330, the amount of light that passes through the extension part 332 after being reflected by the inner wall surface of the recess 52 can be increased.

ところで、延出部332から出射する光の一部は、隣り合う反射板60に反射されて照明空間に照射される。このとき、延出部332から反射板60までの距離は、主部330から反射板60までの距離に比べて近いため、延出部332から出射した光により、反射板60の一部に明るい筋が生じてしまうことがある。そこで本実施形態では、延出部332を、凹所52に対して反射板60よりも照明空間側(下側)に位置させないことにより、反射板60の一部に明るい筋が生じ難くしている(図1参照)。   By the way, a part of the light emitted from the extending part 332 is reflected by the adjacent reflectors 60 and irradiated to the illumination space. At this time, since the distance from the extending part 332 to the reflecting plate 60 is shorter than the distance from the main part 330 to the reflecting plate 60, a part of the reflecting plate 60 is brightened by the light emitted from the extending part 332 Streaks may occur. Therefore, in the present embodiment, the extension portion 332 is not positioned on the illumination space side (lower side) with respect to the recess 52 than the reflection plate 60, thereby making it difficult for bright stripes to be generated in a part of the reflection plate 60. (See FIG. 1).

ここで、点灯モジュール2を構成する光源ユニット3の個数は4つに限定されるものではなく、3つ又は2つ、あるいは5つ以上であっても構わない。また、光源ユニット3を構成する基板31の枚数も2枚に限定されるものではなく、1枚又は3枚以上であっても構わない。さらに、本発明に係る照明器具は天井板8の埋込孔80に埋め込まれるものに限定されず、天井板8に直付けされるものであっても構わない。   Here, the number of light source units 3 constituting the lighting module 2 is not limited to four, and may be three, two, or five or more. Further, the number of substrates 31 constituting the light source unit 3 is not limited to two, and may be one or three or more. Furthermore, the lighting fixture according to the present invention is not limited to the one that is embedded in the embedding hole 80 of the ceiling plate 8, and may be one that is directly attached to the ceiling plate 8.

なお、本実施形態では図示を省略しているが、グレアを抑制するためのルーバを器具本体1若しくは点灯モジュール2に設けてもよい。あるいは、透光性材料からなり且つ拡散性を有するパネルで器具本体1の開口を塞いでもよい。   In addition, although illustration is abbreviate | omitted in this embodiment, you may provide the louver in the instrument main body 1 or the lighting module 2 for suppressing glare. Or you may block | close the opening of the instrument main body 1 with the panel which consists of a translucent material and has a diffusibility.

1 器具本体
3 光源ユニット
6 反射部材
30 発光ダイオード(発光素子)
31 基板
32 取付部材
33 カバー部材
51 凹所
332 延出部
1 Instrument body 3 Light source unit 6 Reflecting member
30 Light-emitting diode (light-emitting element)
31 Board
32 Mounting material
33 Cover member
51 recess
332 Extension

Claims (3)

光を放射する光源ユニットと、前記光源ユニットから放射される光を照明空間に向けて反射する反射部材と、前記光源ユニットと前記反射部材を保持する器具本体とを備え、前記光源ユニットと前記反射部材との間に、前記照明空間に向けて開口する凹所が形成された照明器具であって、
前記光源ユニットは、基板に実装された1乃至複数の発光素子と、前記基板が取り付けられる取付部材と、透光性を有し且つ前記発光素子を覆うように前記取付部材に取り付けられるカバー部材とを具備し、
前記カバー部材は、前記取付部材よりも外側に延出して前記凹所の開口面と重なる延出部を有し、前記凹所は、前記光源ユニット並びに前記開口面と対向する内壁面が反射面となっていることを特徴とする照明器具。
A light source unit that emits light; a reflection member that reflects light emitted from the light source unit toward an illumination space; and an instrument body that holds the light source unit and the reflection member. A lighting fixture in which a recess that opens toward the illumination space is formed between the members,
The light source unit includes one or more light emitting elements mounted on a substrate, an attachment member to which the substrate is attached, and a cover member that is translucent and attached to the attachment member so as to cover the light emitting element. Comprising
The cover member has an extending portion that extends outward from the mounting member and overlaps the opening surface of the recess, and the recess has a reflection surface with an inner wall surface facing the light source unit and the opening surface. The lighting fixture characterized by becoming.
前記カバー部材は、前記発光素子が実装されている前記基板の実装面に対向する主部と、前記主部の端から延出される前記延出部とを有し、前記延出部の厚み寸法が前記主部の厚み寸法以下に形成されることを特徴とする請求項1記載の照明器具。   The cover member has a main part facing the mounting surface of the substrate on which the light emitting element is mounted, and the extension part extending from an end of the main part, and the thickness dimension of the extension part The lighting apparatus according to claim 1, wherein the lighting fixture is formed to be equal to or smaller than a thickness dimension of the main portion. 前記延出部は、前記凹所に対して前記反射部材の反射面よりも前記照明空間側に位置しないことを特徴とする請求項1又は2記載の照明器具。   The lighting device according to claim 1, wherein the extending portion is not positioned on the illumination space side with respect to the recess with respect to the reflecting surface of the reflecting member.
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