JP2014072142A - Lighting apparatus - Google Patents

Lighting apparatus Download PDF

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JP2014072142A
JP2014072142A JP2012219559A JP2012219559A JP2014072142A JP 2014072142 A JP2014072142 A JP 2014072142A JP 2012219559 A JP2012219559 A JP 2012219559A JP 2012219559 A JP2012219559 A JP 2012219559A JP 2014072142 A JP2014072142 A JP 2014072142A
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housing
lighting fixture
light emitting
emitting unit
fixing member
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JP5991587B2 (en
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Orie Nakamura
織絵 中村
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Panasonic Corp
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Panasonic Corp
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  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a lighting apparatus of which small-size formation can be attained while its heat radiation is being kept and further to enable an integrated planer light source to be formed by a continuous arrangement without generating any shade.SOLUTION: A light-emitting part 30 is fixed to a cylindrical casing 20 by a fixing member 34. It has a band-like circuit board 31, several LED units 32 arranged along a longitudinal direction of the circuit board 31 and a cover 33 for covering each of the LED units 32. A power supply part 40 is stored in the casing 20 and the casing 20 is provided with a first opening 25 communicating with inside and outside portions in a direction crossing against a radiating direction of the light-emitting part 30, so that heat generated from the LED unit 32 and the power supply part 40 is not accumulated in the casing 20 and can be properly discharged and heat radiation characteristic can be kept. In addition, since the fixing member 34 is arranged near the central part of the light emitting part 30 rather than the LED unit 36 at the most longitudinal end part of each of the LED units 32, the fixing member 34 does not make any shade and an integrated planer light source can be formed.

Description

本発明は、連続配置することにより、切れ目なく一体化された面光源を設けることができる照明器具に関するものである。   The present invention relates to a luminaire that can be provided with a continuous surface light source by being continuously arranged.

従来、限られた狭スペースに設置可能であり、かつ、光を連結して、切れ目なく一体化された面光源を形成できるような照明器具が望まれている。
しかし、狭スペースに設置可能となるように照明器具を小型化すると、照明器具自体の放熱領域も小さくなってしまうので、放熱性が低下してしまう。
また、光を連結しようとしても、従来の蛍光灯などでは、その両端にソケットや金具などが配置されているので、間隔が生じてしまい、光を連結して切れ目なく一体化された面光源を得ることが困難であった。 2. Description of the Related Art Conventionally, there has been a demand for a lighting fixture that can be installed in a limited narrow space and that can form a surface light source that is integrated with light by connecting light.
However, if the luminaire is reduced in size so that it can be installed in a narrow space, the heat dissipation area of the luminaire itself is also reduced, resulting in a reduction in heat dissipation.
Moreover, even if it is going to connect light, in the conventional fluorescent lamp etc., since a socket, metal fittings, etc. are arranged at the both ends, a space | interval arises and the surface light source which connected light and was integrated without a break is used. It was difficult to get.

そこで、近年、照明器具の小型化と放熱性向上とを両立させる技術として、照明器具に複数の放熱フィンを設ける技術が提案されている（例えば、特許文献１参照）。
また、光を連結して、切れ目なく一体化された面光源を形成する技術として、光源であるＬＥＤ基板の端面同士を、接続端子を介さずに、銅線にて橋渡しして連結できる照明器具が提案されている（例えば、特許文献２参照）。 Therefore, in recent years, a technique for providing a plurality of heat radiating fins in a lighting fixture has been proposed as a technology for achieving both reduction in size of the lighting fixture and improvement in heat dissipation (see, for example, Patent Document 1).
In addition, as a technique for connecting light and forming a surface light source integrated seamlessly, a lighting fixture that can bridge and connect the end faces of LED substrates as light sources with a copper wire without using a connection terminal Has been proposed (see, for example, Patent Document 2).

特開２００８−２１０５９３号公報（第１図）Japanese Patent Laying-Open No. 2008-210593 (FIG. 1) 特開２０１０−１６１０４６号公報（第５図）Japanese Patent Laying-Open No. 2010-161046 (FIG. 5)

しかしながら、特許文献１に記載の照明器具のように放熱フィンを用いると、放熱フィンが嵩張るため小型化が困難であり、また、部材点数が増加するため、組立作業性が低下したり、部材コストが増加したりするなどの問題点がある。
また、特許文献２に記載の照明器具では、ＬＥＤ基板上に銅線が設けられているので、複数の照明器具を組み合わせて一体化された面光源を形成する際に、銅線により遮光されて影が生じるという問題がある。 However, if the heat radiating fins are used as in the lighting apparatus described in Patent Document 1, the heat radiating fins are bulky, so that it is difficult to reduce the size, and the number of members increases. There is a problem such as increasing.
Moreover, in the lighting fixture of patent document 2, since the copper wire is provided on the LED substrate, when forming the surface light source integrated by combining a plurality of lighting fixtures, it is shielded by the copper wire. There is a problem that shadows occur.

本発明は、従来の問題を解決するためになされたもので、放熱性を確保しつつ小型化が可能で、連続配置することにより影を生じることなく一体化された面光源を形成することができる照明器具を提供することを目的とする。   The present invention has been made to solve the conventional problems, and can be miniaturized while ensuring heat dissipation, and by continuously arranging it, an integrated surface light source can be formed without causing a shadow. It aims at providing the lighting fixture which can be performed.

本発明の照明器具は、筒状の筐体と、前記筐体に取り付けられた発光部と、前記筐体における前記発光部の照射方向に対して交差する方向に設けられ、前記筐体の内外を連通する第１の開口と、前記筐体に前記発光部を固定するための固定部材と、を備え、前記発光部が、帯状の回路基板と、前記回路基板の長手方向に沿って配列された複数のＬＥＤユニットと、前記各ＬＥＤユニットを覆うカバーとを有し、前記固定部材が、前記各ＬＥＤユニットのうちの長手方向最端部のＬＥＤユニットよりも前記発光部の中央部寄りに設けられているものである。   The lighting fixture of the present invention is provided in a direction that intersects the irradiation direction of the light emitting unit in the casing, a cylindrical casing, a light emitting unit attached to the casing, and the inside and outside of the casing And a fixing member for fixing the light emitting part to the casing, the light emitting part being arranged along a longitudinal direction of the circuit board and the circuit board A plurality of LED units and a cover that covers each LED unit, and the fixing member is provided closer to the center of the light emitting unit than the LED unit at the end in the longitudinal direction of the LED units. It is what has been.

また、本発明の照明器具は、前記固定部材を複数有し、前記各固定部材が、前記発光部
の長手方向に沿った線を中心とする対称位置に設けられているものである。 Moreover, the lighting fixture of this invention has two or more said fixing members, and each said fixing member is provided in the symmetrical position centering on the line along the longitudinal direction of the said light emission part.

また、本発明の照明器具は、前記筐体に対する前記固定部材の頭頂部が前記ＬＥＤユニットの出射面よりも低いものである。   Moreover, the lighting fixture of this invention is a thing in which the top part of the said fixing member with respect to the said housing | casing is lower than the output surface of the said LED unit.

また、本発明の照明器具は、前記筐体の表面積に対して前記第１の開口の開口面積が１０％以上３５％未満であるものである。   In the lighting fixture of the present invention, the opening area of the first opening is 10% or more and less than 35% with respect to the surface area of the housing.

また、本発明の照明器具は、前記発光部を支持するとともに前記発光部を前記筐体に固定するための反射部材を有し、前記筐体と前記反射部材との間に隙間が形成されているものである。   In addition, the lighting fixture of the present invention has a reflective member for supporting the light emitting unit and fixing the light emitting unit to the housing, and a gap is formed between the housing and the reflecting member. It is what.

さらに、本発明の照明器具は、前記筐体における前記発光部の照射方向とは反対側に設けられ、前記筐体の内外を連通する第２の開口を有するものである。   Furthermore, the lighting fixture of this invention is provided in the opposite side to the irradiation direction of the said light emission part in the said housing | casing, and has a 2nd opening which connects the inside and outside of the said housing | casing.

本発明は、筐体の内部には電源部が収容され、筐体には、発光部の照射方向に対して交差する方向に内外を連通する開口が設けられているので、放熱性を確保することができる。また、固定部材が、各ＬＥＤユニットのうちの長手方向最端部のＬＥＤユニットよりも発光部の中央部寄りに設けられているので、固定部材が影にならず、一体化された面光源を形成することができるという効果を有する照明器具を提供できる。   In the present invention, the power supply unit is housed inside the housing, and the housing is provided with an opening that communicates the inside and the outside in a direction that intersects the irradiation direction of the light emitting unit, thus ensuring heat dissipation. be able to. In addition, since the fixing member is provided closer to the center of the light emitting unit than the LED unit at the end in the longitudinal direction of each LED unit, the fixing member does not become a shadow and an integrated surface light source is used. The lighting fixture which has the effect that it can form can be provided.

（Ａ）は本発明に係る実施形態の照明器具を連結した状態の側面図であり、（Ｂ）は（Ａ）中Ｂ方向から見た底面図であり、（Ｃ）は（Ａ）中Ｃ方向から見た平面図(A) is the side view of the state which connected the lighting fixture of embodiment which concerns on this invention, (B) is the bottom view seen from B direction in (A), (C) is C in (A). Plan view from the direction 図１（Ｃ）中ＩＩ−ＩＩ位置の断面図Sectional drawing of the II-II position in FIG.1 (C) 図２中ＩＩＩ−ＩＩＩ位置の断面図Sectional view at position III-III in FIG. （Ａ）はねじを器具本体の中心軸に対して対称の位置に設けた場合を示す平面図であり、（Ｂ）はねじを器具本体の中心軸に対して千鳥状に設けた場合を示す平面図(A) is a top view which shows the case where a screw is provided in the symmetrical position with respect to the central axis of an instrument main body, (B) shows the case where a screw is provided in zigzag form with respect to the central axis of an instrument main body. Plan view ＬＥＤユニットの出射面とねじの頭頂部との高さ位置関係を示す断面図Sectional drawing which shows the height positional relationship of the output surface of a LED unit, and the top part of a screw 端部を開放した場合の器具本体の斜視図Perspective view of the instrument body with the end open

以下、本発明に係る実施形態の照明器具について、図面を用いて説明する。
図１（Ａ）乃至（Ｃ）に示すように、本発明に係る実施形態の照明器具１０は、例えば被取付面である天井面１１に設けられた取付孔１２に、複数（ここでは、例えば２個）長手方向に連結して使用することができる。
なお、以下の説明においては、照射方向を下方とし、照射方向と反対側を上方とした場合について説明する。 Hereinafter, the lighting fixture of embodiment which concerns on this invention is demonstrated using drawing.
As shown in FIGS. 1A to 1C, a lighting apparatus 10 according to an embodiment of the present invention has, for example, a plurality (here, for example,) of mounting holes 12 provided in a ceiling surface 11 that is a mounting surface. 2) Can be used by connecting in the longitudinal direction.
In the following description, a case will be described in which the irradiation direction is downward and the opposite side to the irradiation direction is upward.

図２および図３に示すように、照明器具１０は、細長い矩形筒状の器具本体（筐体）２０を有する。
器具本体２０は、下方に開口した（筐体開口２１）断面コ字状の上筐体２２と、上筐体２２の内部に水平に取り付けられる取付板２３を有する。器具本体２０の長手方向両端は、端板２８によって塞がれており、埃等の浸入を防止している（図２参照）。
上筐体２２は、天板２２１と、左右一対の側板２２２、２２２を有し、側板２２２の下端は外側に折曲げられて係止部２２３を有する。
器具本体２０を長手方向に連結して照明器具１０を連結する際には、隣接する照明器具１０の天板２２１同士を、上側から連結板２９を用いて連結することができる（図１（Ａ）、図１（Ｂ）参照）。 As shown in FIG. 2 and FIG. 3, the lighting fixture 10 has a long and narrow rectangular tubular appliance body (housing) 20.
The instrument body 20 includes an upper housing 22 having a U-shaped cross section that opens downward (housing opening 21), and a mounting plate 23 that is horizontally attached to the inside of the upper housing 22. Both ends in the longitudinal direction of the instrument body 20 are closed by end plates 28 to prevent intrusion of dust or the like (see FIG. 2).
The upper housing 22 has a top plate 221 and a pair of left and right side plates 222 and 222, and the lower end of the side plate 222 is bent outward and has a locking portion 223.
When connecting the lighting fixture 10 by connecting the fixture main body 20 in the longitudinal direction, the top plates 221 of the adjacent lighting fixtures 10 can be connected using the connecting plate 29 from above (FIG. 1A). ), See FIG.

図１（Ａ）および図２に示すように、側板２２２には、器具本体２０の内外を水平方向に連通する第１の開口２５が適宜の位置に設けられている。
第１の開口２５の開口面積は、器具本体２０の表面積の１０％以上３５％未満となるように設定されている。
第１の開口２５の形状は特に限定されないが、同じ開口領域であっても、１個の開口ではなく、複数の開口を設けることが好ましい。
例えば、第１の開口２５を長孔にすると強度が低下するので、複数の円形にするのがよい。
なお、器具本体２０の強度の観点から、第１の開口２５は、両側板２２２において、ＬＥＤユニット３２を挟んで、左右対称の位置に、同じ開口面積で設けることが好ましい。 As shown in FIGS. 1A and 2, the side plate 222 is provided with a first opening 25 that communicates the inside and outside of the instrument body 20 in the horizontal direction at an appropriate position.
The opening area of the first opening 25 is set to be 10% or more and less than 35% of the surface area of the instrument body 20.
Although the shape of the 1st opening 25 is not specifically limited, Even if it is the same opening area | region, it is preferable to provide several opening instead of one opening.
For example, if the first opening 25 is a long hole, the strength is reduced, so it is preferable to form a plurality of circles.
In addition, from the viewpoint of the strength of the instrument body 20, the first opening 25 is preferably provided in the left and right symmetrical positions on both side plates 222 with the LED unit 32 interposed therebetween, with the same opening area.

図１（Ｃ）に示すように、天板２２１には、長手方向に少なくとも２個のボルト孔２４が設けられている。
また、天板２２１には、器具本体２０の内外を上下方向に連通する第２の開口２７が適宜の位置に設けられている。この第２の開口２７は、器具本体２０内部の熱を放出可能であるとともに、電源線（図示省略）等の配線に用いることができる。 As shown in FIG. 1C, the top plate 221 is provided with at least two bolt holes 24 in the longitudinal direction.
Further, the top plate 221 is provided with a second opening 27 that communicates the inside and outside of the instrument body 20 in the vertical direction at an appropriate position. The second opening 27 can release heat inside the instrument body 20 and can be used for wiring such as a power supply line (not shown).

図２および図３に示すように、ボルト孔２４にはアンカーボルト１３の下端部がナット１４により取り付けられる。
なお、ボルト孔２４の位置には、ボルト孔（図示省略）を有し、断面コ字状の補強材２６が天板２２１の下面に取り付けられており、天板２２１を補強する。
なお、天板２２１下面には、電源部４０が取り付けられており、ボルト孔２４は電源部４０を避けて設けられている。 As shown in FIGS. 2 and 3, the lower end portion of the anchor bolt 13 is attached to the bolt hole 24 with a nut 14.
The bolt hole 24 has a bolt hole (not shown), and a U-shaped reinforcing member 26 is attached to the lower surface of the top plate 221 to reinforce the top plate 221.
A power supply unit 40 is attached to the lower surface of the top plate 221, and the bolt holes 24 are provided avoiding the power supply unit 40.

図３に示すように、器具本体２０の内部における取付板２３の下側には、反射板５０を介して発光部３０が取り付けられる。
反射板５０は、上板５１と、一対の側板５２とを有して断面コ字状を呈しており、上板５１の下面および側板５２の内面は、例えば白に塗装されて、発光部３０の光を反射する。側板５２の下端は外側に折曲げられ、さらに先端を上側に折曲げて、断面Ｌ字形状の枠部５３が設けられている。 As shown in FIG. 3, the light emitting unit 30 is attached to the lower side of the attachment plate 23 inside the instrument main body 20 via the reflection plate 50.
The reflecting plate 50 has an upper plate 51 and a pair of side plates 52 and has a U-shaped cross section. The lower surface of the upper plate 51 and the inner surface of the side plate 52 are painted, for example, white, and the light emitting unit 30. Reflects the light. The lower end of the side plate 52 is bent outward, and the tip is bent upward, and a frame portion 53 having an L-shaped cross section is provided.

反射板５０は、反射性を備える部材であって、ねじ（固定部材）３４によって取付板２３に取り付けられる。このとき、反射板５０と取付板２３との間には、隙間３５が形成される。なお、本発明に適用可能な反射部材としては、反射板に限らず、反射性を備える部材として利用されているものであればよい。
隙間３５は、ねじ３４にスペーサ（図示省略）を設けることで確保することができる。あるいは、ねじ３４を締めたときに、枠部５３の上端面５３１が天井に当接することにより隙間３５を形成してもよい。 The reflection plate 50 is a member having reflectivity, and is attached to the attachment plate 23 by a screw (fixing member) 34. At this time, a gap 35 is formed between the reflecting plate 50 and the mounting plate 23. In addition, as a reflective member applicable to this invention, what is utilized as a member provided with reflectivity is not restricted to a reflecting plate.
The gap 35 can be secured by providing a spacer (not shown) on the screw 34. Alternatively, the gap 35 may be formed by the upper end surface 531 of the frame portion 53 coming into contact with the ceiling when the screw 34 is tightened.

発光部３０は、反射板５０に取り付けられる回路基板３１と、回路基板３１に実装されるＬＥＤユニット３２、回路基板３１およびＬＥＤユニット３２を覆う透光性のカバー３３とを有する。
回路基板３１は、例えばセラミックやアルミ製で帯状を呈しており、長手方向に沿って複数のＬＥＤユニット３２が実装される。 The light emitting unit 30 includes a circuit board 31 attached to the reflection plate 50, an LED unit 32 mounted on the circuit board 31, and a translucent cover 33 that covers the circuit board 31 and the LED unit 32.
The circuit board 31 is made of, for example, ceramic or aluminum and has a strip shape, and a plurality of LED units 32 are mounted along the longitudinal direction.

図４（Ａ）に示すように、ねじ３４は、各ＬＥＤユニット３２のうちの長手方向最端部のＬＥＤユニット３６よりも発光部３０の中央部寄りに設けられている。
また、ねじ３４は、発光部３０の長手方向に沿った線ＣＬを中心として対称位置に設けられる。
あるいは、図４（Ｂ）に示すように、対称位置ではないが、長手方向に沿った線ＣＬの両側に千鳥状に配置することもできる。 As shown in FIG. 4A, the screw 34 is provided closer to the center of the light emitting unit 30 than the LED unit 36 at the end in the longitudinal direction of the LED units 32.
Further, the screw 34 is provided at a symmetrical position around the line CL along the longitudinal direction of the light emitting unit 30.
Alternatively, as shown in FIG. 4B, although not symmetrical, it can be arranged in a staggered manner on both sides of the line CL along the longitudinal direction.

図５に示すように、器具本体２０に対するねじ３４の頭頂部３４１の高さＨ１は、ＬＥＤユニット３２の出射面３２１の高さＨ２よりも低くなる。すなわち、Ｈ１＜Ｈ２となるように設定されている。こうすることで、ねじ３４の頭頂部３４１が壁となってＬＥＤユニット３２から出射される光の妨げとはならないので、光のロスを抑え、高光束を維持することが可能となる。   As shown in FIG. 5, the height H <b> 1 of the top 341 of the screw 34 with respect to the instrument body 20 is lower than the height H <b> 2 of the emission surface 321 of the LED unit 32. That is, H1 <H2 is set. By doing so, the head portion 341 of the screw 34 becomes a wall and does not hinder the light emitted from the LED unit 32, so that it is possible to suppress the loss of light and maintain a high luminous flux.

本発明の実施形態に係る照明器具１０の作用効果について説明する。
図２に示すように、発光部３０は、ねじ３４により筒状の器具本体２０に取り付けられており、帯状の回路基板３１と、回路基板３１の長手方向に沿って配列された複数のＬＥＤユニット３２と、各ＬＥＤユニット３２を覆うカバー３３とを有する。
図１（Ａ）、図１（Ｂ）および図２に示すように、器具本体２０の内部には電源部４０が収容され、器具本体２０の側板２２２には、発光部３０の照射方向に対して交差する方向である水平方向に内外を連通する第１の開口２５を設けた。 The effect of the lighting fixture 10 which concerns on embodiment of this invention is demonstrated.
As shown in FIG. 2, the light emitting unit 30 is attached to the cylindrical instrument body 20 with screws 34, and has a strip-shaped circuit board 31 and a plurality of LED units arranged along the longitudinal direction of the circuit board 31. 32 and a cover 33 that covers each LED unit 32.
As shown in FIG. 1A, FIG. 1B, and FIG. 2, the power supply unit 40 is accommodated inside the instrument body 20, and the side plate 222 of the instrument body 20 is directed to the irradiation direction of the light emitting unit 30. The first opening 25 that communicates the inside and the outside is provided in the horizontal direction that is the direction that intersects.

このため、ＬＥＤユニット３２や電源部４０から発生する熱を器具本体２０内に滞留させずに適宜器具本体２０の外に放熱することができ、放熱性を確保することができる。
また、図４（Ａ）に示すように、ねじ３４は、各ＬＥＤユニット３２のうちの長手方向最端部のＬＥＤユニット３６よりも発光部３０の中央部寄りに設けられている。
このため、照明器具１０を連続配置した際に、ねじ３４が影にならず、一体化された面光源を形成することができる。 For this reason, the heat generated from the LED unit 32 and the power supply unit 40 can be appropriately radiated to the outside of the instrument main body 20 without staying in the instrument main body 20, and heat dissipation can be ensured.
Further, as shown in FIG. 4A, the screw 34 is provided closer to the center of the light emitting unit 30 than the LED unit 36 at the end in the longitudinal direction of the LED units 32.
For this reason, when the lighting fixture 10 is continuously arranged, the screw 34 does not become a shadow, and an integrated surface light source can be formed.

図４（Ａ）に示すように、ねじ３４を複数設け、各ねじ３４が、発光部３０の長手方向に沿った線ＣＬを中心とする対称位置に設けられているので、製作性および汎用性に富む。
また、回路基板３１上ではなく、回路基板３１の外側にねじ３４を設けたので、長手方向に沿って回路基板３１を連結する際に、つなぎ目が形成されない。このため、連続した光を実現することができる。 As shown in FIG. 4 (A), a plurality of screws 34 are provided, and each screw 34 is provided at a symmetrical position about the line CL along the longitudinal direction of the light emitting portion 30. Therefore, manufacturability and versatility. Rich.
Further, since the screws 34 are provided not on the circuit board 31 but outside the circuit board 31, no joint is formed when the circuit boards 31 are connected along the longitudinal direction. For this reason, continuous light can be realized.

図５に示すように、器具本体２０に対するねじ３４の頭頂部３４１が、ＬＥＤユニット３２の出射面３２１よりも低いので、ねじ３４による影ができない。   As shown in FIG. 5, since the top 341 of the screw 34 with respect to the instrument body 20 is lower than the emission surface 321 of the LED unit 32, the shadow by the screw 34 is not possible.

図２に示すように、器具本体２０の表面積に対して第１の開口２５の開口面積が１０％未満だと放熱性が劣り、３５％以上だと器具本体２０部の剛性が不足する。
このため、第１の開口２５の開口面積を１０％以上３５％未満にしたので、器具本体２０の剛性を確保しつつ、開口面積を大きくして放熱性を向上できる。 As shown in FIG. 2, if the opening area of the first opening 25 is less than 10% with respect to the surface area of the instrument body 20, the heat dissipation is inferior, and if it is 35% or more, the rigidity of the instrument body 20 is insufficient.
For this reason, since the opening area of the 1st opening 25 was made into 10% or more and less than 35%, the opening area can be enlarged and heat dissipation can be improved, ensuring the rigidity of the instrument main body 20. FIG.

図３に示すように、発光部３０を支持して器具本体２０に固定する反射板５０と、器具本体２０との間に隙間３５を設けたので、放熱性が向上する。
また、隙間３５を設けることにより、器具本体２０の第１の開口２５の開口面積を必要最低限に抑えて、器具本体２０の強度を確保することができる。 As shown in FIG. 3, since the gap 35 is provided between the reflector body 50 that supports the light emitting unit 30 and is fixed to the instrument body 20 and the instrument body 20, heat dissipation is improved.
In addition, by providing the gap 35, the opening area of the first opening 25 of the instrument body 20 can be minimized and the strength of the instrument body 20 can be ensured.

図１（Ｃ）に示すように、発光部３０の照射方向とは反対側である器具本体２０の天板２２１に、器具本体２０の内外を連通する第２の開口２７を設けたので、器具本体２０内に上下方向の空気の流れを形成し、放熱性をより向上させることができる。   As shown in FIG. 1 (C), since the second opening 27 that communicates the inside and outside of the instrument body 20 is provided in the top plate 221 of the instrument body 20 that is opposite to the irradiation direction of the light emitting unit 30, the instrument The air flow in the vertical direction can be formed in the main body 20 to further improve the heat dissipation.

本発明の照明器具は、前述した実施形態に限定されるものでなく、適宜な変形、改良等が可能である。
例えば、前述した実施形態においては、筒状の器具本体として矩形筒状の場合を例示したが、本発明は円筒状の場合にも適用可能である。 The lighting fixture of the present invention is not limited to the above-described embodiment, and appropriate modifications and improvements can be made.
For example, in the above-described embodiment, the case of a rectangular cylinder is illustrated as the cylindrical instrument body, but the present invention can also be applied to a cylinder.

また、前述した実施形態においては、図２に示すように、器具本体２０の長手方向両端が、端板２８によって塞がれている場合について例示した。
このほか、図６に示すように、器具本体２０の長手方向両端を開放するようにすることも可能である。
また、前述した実施形態においては、図３に示すように、断面コ字状の反射板５０の内部に発光部３０が収容される場合について例示した。
このほか、図示はしないが、平板状の反射板の下側に露出して発光部３０を取り付けることも可能である。 Moreover, in embodiment mentioned above, as shown in FIG. 2, the case where the longitudinal direction both ends of the instrument main body 20 were block | closed with the end plate 28 was illustrated.
In addition, as shown in FIG. 6, it is also possible to open both ends of the instrument body 20 in the longitudinal direction.
Moreover, in embodiment mentioned above, as shown in FIG. 3, it illustrated about the case where the light emission part 30 was accommodated in the inside of the reflecting plate 50 of cross-sectional U shape.
In addition, although not shown, it is possible to attach the light emitting unit 30 so as to be exposed to the lower side of the flat reflector.

また、ＬＥＤユニット３２は、ＳＭＤ（Surface Mount Device）タイプでもＣＯＢ（Chip On Board）タイプでもよい。
また、照明器具１０は、直線状のみならず、放射状に配置することも可能である。 The LED unit 32 may be an SMD (Surface Mount Device) type or a COB (Chip On Board) type.
Moreover, the lighting fixture 10 can also be arrange | positioned not only linearly but radially.

１０ 照明器具
２０ 器具本体（筐体）
２５ 第１の開口
２７ 第２の開口
３０ 発光部
３１ 回路基板
３２ ＬＥＤユニット
３２１ 出射面
３３ カバー
３４ ねじ（固定部材）
３４１ 頭頂部
３５ 隙間
３６ 長手方向最端部のＬＥＤユニット
４０ 電源部
５０ 反射板
ＣＬ 長手方向に沿った線 10 Lighting equipment 20 Equipment body (housing)
25 1st opening 27 2nd opening 30 Light emission part 31 Circuit board 32 LED unit 321 Output surface 33 Cover 34 Screw (fixing member)
341 Head portion 35 Gap 36 Longest end LED unit 40 Power supply portion 50 Reflector CL Line along the longitudinal direction

Claims (6)

筒状の筐体と、
前記筐体に取り付けられた発光部と、
前記筐体における前記発光部の照射方向に対して交差する方向に設けられ、前記筐体の内外を連通する第１の開口と、
前記筐体に前記発光部を固定するための固定部材と、を備え、
前記発光部が、帯状の回路基板と、前記回路基板の長手方向に沿って配列された複数のＬＥＤユニットと、前記各ＬＥＤユニットを覆うカバーとを有し、
前記固定部材が、前記各ＬＥＤユニットのうちの長手方向最端部のＬＥＤユニットよりも前記発光部の中央部寄りに設けられている照明器具。 A cylindrical housing;
A light emitting unit attached to the housing;
A first opening provided in a direction intersecting an irradiation direction of the light emitting unit in the housing and communicating between the inside and the outside of the housing;
A fixing member for fixing the light emitting unit to the housing,
The light emitting unit includes a strip-shaped circuit board, a plurality of LED units arranged along the longitudinal direction of the circuit board, and a cover that covers the LED units,
The lighting fixture in which the fixing member is provided closer to the center of the light emitting unit than the LED unit at the end in the longitudinal direction of the LED units. 請求項１に記載の照明器具において、
前記固定部材を複数有し、
前記各固定部材が、前記発光部の長手方向に沿った線を中心とする対称位置に設けられている照明器具。 The lighting fixture according to claim 1,
A plurality of the fixing members;
The lighting fixture in which each said fixing member is provided in the symmetrical position centering on the line along the longitudinal direction of the said light emission part. 請求項１または請求項２に記載の照明器具において、
前記筐体に対する前記固定部材の頭頂部が前記ＬＥＤユニットの出射面よりも低い照明器具。 The lighting fixture according to claim 1 or 2,
The lighting fixture in which the top of the fixing member with respect to the housing is lower than the emission surface of the LED unit. 請求項１ないし請求項３のうちのいずれか１項に記載の照明器具において、
前記筐体の表面積に対して前記第１の開口の開口面積が１０％以上３５％未満である照明器具。 In the lighting fixture of any one of Claims 1 thru | or 3,
The lighting fixture whose opening area of said 1st opening is 10% or more and less than 35% with respect to the surface area of the said housing | casing. 請求項１ないし請求項４のうちのいずれか１項に記載の照明器具において、
前記発光部を支持するとともに前記発光部を前記筐体に固定するための反射部材を有し、
前記筐体と前記反射部材との間に隙間が形成されている照明器具。 In the lighting fixture of any one of Claims 1 thru | or 4,
A reflective member for supporting the light emitting unit and fixing the light emitting unit to the housing;
The lighting fixture in which the clearance gap is formed between the said housing | casing and the said reflection member. 請求項１ないし請求項５のうちのいずれか１項に記載の照明器具において、
前記筐体における前記発光部の照射方向とは反対側に設けられ、前記筐体の内外を連通する第２の開口を有する照明器具。 In the lighting fixture of any one of Claim 1 thru | or 5,
A luminaire having a second opening that is provided on the opposite side of the housing from the direction of irradiation of the light emitting unit and communicates with the inside and outside of the housing.
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JP2016162495A (en) * 2015-02-26 2016-09-05 三菱電機株式会社 Lighting fixture
JP2016162496A (en) * 2015-02-26 2016-09-05 三菱電機株式会社 Lighting fixture
JP2016207623A (en) * 2015-04-28 2016-12-08 三菱電機株式会社 Luminaire
JP2020155413A (en) * 2019-03-01 2020-09-24 三菱電機株式会社 Fixture body and lighting fixture

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JP2016162495A (en) * 2015-02-26 2016-09-05 三菱電機株式会社 Lighting fixture
JP2016162496A (en) * 2015-02-26 2016-09-05 三菱電機株式会社 Lighting fixture
JP2016207623A (en) * 2015-04-28 2016-12-08 三菱電機株式会社 Luminaire
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