JP6124211B2 - lighting equipment - Google Patents

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JP6124211B2
JP6124211B2 JP2013101362A JP2013101362A JP6124211B2 JP 6124211 B2 JP6124211 B2 JP 6124211B2 JP 2013101362 A JP2013101362 A JP 2013101362A JP 2013101362 A JP2013101362 A JP 2013101362A JP 6124211 B2 JP6124211 B2 JP 6124211B2
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led
lighting fixture
light
led unit
circuit board
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JP2014222584A (en
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高明 片岡
高明 片岡
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Description

本発明は、例えば天井材等に設けられた取付孔に取り付けて、主に下方を照明する照明器具に関するものである。   The present invention relates to a lighting fixture that is attached to a mounting hole provided in a ceiling material or the like and illuminates mainly downward.

従来、天井材に設けられた取付孔に取り付ける照明器具が知られている（例えば、特許文献１参照）。
図８（Ａ）に示すように、照明器具１００は、天井、壁面等に埋め込まれる埋込型であり、発光装置１０１（図８（Ｂ）参照）および発光装置１０１を点灯させる電源ユニット（図示省略）を収容する本体部１０２を備える。
また、天井等に形成された開口部に嵌め込まれ、光源等を保持する枠体部１０３と、商用電源から電源供給を受けるための電源線が接続される端子台１０４と、枠体部１０３を天井等に固定するための取付バネ１０５と、を備える。 Conventionally, the lighting fixture attached to the attachment hole provided in the ceiling material is known (for example, refer patent document 1).
As shown in FIG. 8A, the lighting fixture 100 is an embedded type embedded in a ceiling, a wall surface, or the like, and includes a light emitting device 101 (see FIG. 8B) and a power supply unit (illustrated) that lights the light emitting device 101. (Not shown).
In addition, a frame body portion 103 that is fitted in an opening formed in a ceiling or the like and holds a light source or the like, a terminal block 104 to which a power supply line for receiving power supply from a commercial power source is connected, and a frame body portion 103 And an attachment spring 105 for fixing to a ceiling or the like.

また、照明器具１００は、図８（Ｂ）に示すように、基板１０６と、基板１０６に実装されたＬＥＤ１０７の熱を放熱するためのヒートシンク部材１０８と、基板１０６とヒートシンク部材１０８との間に設けられる保持部材１０９とを備える。また、照明器具１００は、ＬＥＤ１０７を保護する保護カバー１１０を備える。
図８（Ｃ）に示すように、ＬＥＤ１０７は、基板１０６の略中央領域に色温度の低いＬＥＤ１０７Ｃが配されている。また、これらＬＥＤ１０７Ｃよりも色温度が高いＬＥＤ１０７ＡおよびＬＥＤ１０７Ｂが、ＬＥＤ１０７Ｃの周囲に、同種のものが隣り合わないように互い違いに配されている。 In addition, as illustrated in FIG. 8B, the lighting fixture 100 includes a substrate 106, a heat sink member 108 for dissipating heat of the LED 107 mounted on the substrate 106, and a gap between the substrate 106 and the heat sink member 108. And a holding member 109 provided. In addition, the lighting fixture 100 includes a protective cover 110 that protects the LED 107.
As shown in FIG. 8C, the LED 107 has an LED 107 </ b> C having a low color temperature disposed in a substantially central region of the substrate 106. In addition, LEDs 107A and LEDs 107B having a higher color temperature than those of the LEDs 107C are alternately arranged around the LEDs 107C so that the same type is not adjacent to each other.

特開２０１２−１１３９５８号公報（第２図）JP 2012-113958 A (FIG. 2)

しかしながら、前述した特許文献１に記載の従来の照明器具１００においては、天井材の下面に枠体部１０３の鍔部１０３Ａが当接して取り付けられる。
この鍔部１０３Ａには、ＬＥＤ１０７を取り付けることができないため、鍔部１０３Ａの周りが暗くなり照明器具１００と周囲との明暗差が大きくなるという問題があった。 However, in the conventional lighting device 100 described in Patent Document 1 described above, the flange portion 103A of the frame body portion 103 is attached to the lower surface of the ceiling material in contact therewith.
Since the LED 107 cannot be attached to the collar portion 103A, there is a problem in that the periphery of the collar portion 103A becomes dark and a difference in brightness between the lighting fixture 100 and the surrounding area becomes large.

本発明は、従来の問題を解決するためになされたもので、天井材の下面に露出する鍔部の周りに光を照射して明暗差を小さく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 an object of the present invention is to provide a luminaire that can reduce the difference in brightness by irradiating light around the flange exposed on the lower surface of the ceiling material.

本発明の照明器具は、天井材に設けられた取付孔から前記天井材の裏側に配置可能な器具本体と、前記器具本体に回路基板が支持された発光部と、前記器具本体に支持され、前記発光部を囲むとともに前記天井材の表面における前記取付孔の周部に接触可能な鍔部と、を備え、前記発光部は、前記回路基板の厚み方向に沿って前記回路基板から離れる方向に光を照射する第１ＬＥＤと、前記鍔部に向かって光を照射する第２ＬＥＤとを有し、前記回路基板と前記鍔部との間に傾斜して設けられた反射面を有し、前記第２ＬＥＤは、光軸が前記鍔部の表面よりも前記回路基板から離れた側に配置されているものである。 The lighting fixture of the present invention is supported by the fixture body, a fixture body that can be placed on the back side of the ceiling material from an attachment hole provided in the ceiling member, a light emitting portion in which a circuit board is supported by the fixture body, And a flange that surrounds the light emitting portion and can contact a peripheral portion of the mounting hole on the surface of the ceiling material, and the light emitting portion is separated from the circuit board along a thickness direction of the circuit board. It has a first 1LED for irradiating light, possess a first 2LED for irradiating light toward the flange portion, a reflecting surface provided to be inclined between the circuit board and the flange portion, the first In the 2LED, the optical axis is arranged on the side farther from the circuit board than the surface of the flange .

また、本発明の照明器具は、前記第２ＬＥＤは、前記鍔部に沿って配置されているものである。   Moreover, as for the lighting fixture of this invention, said 2nd LED is arrange | positioned along the said collar part.

本発明では、発光部は、回路基板の厚み方向に沿って回路基板から離れる方向に光を照射する第１ＬＥＤと、鍔部に向かって光を照射する第２ＬＥＤとを有する。このため、鍔部の周りに光を照射して鍔部を明るくし、照明器具と周囲との明暗差を小さく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 this invention, a light emission part has 1st LED which irradiates light in the direction away from a circuit board along the thickness direction of a circuit board, and 2nd LED which irradiates light toward a collar part. For this reason, the lighting fixture which has the effect of irradiating the circumference | surroundings of a collar and making a collar bright, and reducing the brightness difference between a lighting fixture and the circumference | surroundings can be provided.

本発明に係る第１実施形態の照明器具の縦断面図The longitudinal cross-sectional view of the lighting fixture of 1st Embodiment which concerns on this invention ＬＥＤパッケージおよびセードの縦断面図LED package and shade vertical section 第２ＬＥＤユニットと鍔部との関係を示す拡大断面図The expanded sectional view which shows the relationship between a 2nd LED unit and a collar part （Ａ）は第１ＬＥＤユニットの断面図であり、（Ｂ）は第２ＬＥＤユニットの断面図であり、（Ｃ）は第２ＬＥＤユニットの変形例としての第３ＬＥＤユニットを示す断面図(A) is sectional drawing of a 1st LED unit, (B) is sectional drawing of a 2nd LED unit, (C) is sectional drawing which shows the 3rd LED unit as a modification of a 2nd LED unit. 本発明に係る第２実施形態の照明器具の要部を示す図３相当の拡大断面図The expanded sectional view equivalent to FIG. 3 which shows the principal part of the lighting fixture of 2nd Embodiment which concerns on this invention. 本発明に係る第３実施形態の照明器具の要部を示す図２総統の縦断面図2 is a longitudinal sectional view of the FIG. 2 president showing the main part of the lighting fixture of the third embodiment according to the present invention. 本発明に係る第４実施形態の照明器具のＬＥＤパッケージの縦断面図The longitudinal cross-sectional view of the LED package of the lighting fixture of 4th Embodiment which concerns on this invention （Ａ）は従来の照明器具を上方から見た斜視図であり、（Ｂ）は分解斜視図であり、（Ｃ）は発光装置の正面図(A) is the perspective view which looked at the conventional lighting fixture from upper direction, (B) is an exploded perspective view, (C) is a front view of a light-emitting device.

（第１実施形態）
以下、第１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に示すように、第１実施形態の照明器具１０Ａは、被取付面である天井材１１に設けられた取付孔１２に取り付けて、下方を照らすダウンライトとして用いることができる。 (First embodiment)
Hereinafter, the lighting fixture of 1st Embodiment is demonstrated using drawing.
As shown in FIG. 1, the luminaire 10A of the first embodiment can be used as a downlight that is attached to an attachment hole 12 provided in a ceiling material 11 that is a surface to be attached and illuminates the lower part.

照明器具１０Ａは、取付孔１２から天井材１１の裏側に配置可能な器具本体２０を有する。器具本体２０は、発光部であるＬＥＤパッケージ２１Ａを有する灯体２２と、灯体２２の下側に一体的に設けられた枠部２３を有する。
灯体２２は、全体円柱形状の外周壁２２１を有しており、外周壁２２１の外側には、ＬＥＤパッケージ２１Ａが発する熱を外部に放出するための放熱板２２２が多数設けられている。 The lighting fixture 10 </ b> A includes a fixture main body 20 that can be placed on the back side of the ceiling material 11 from the mounting hole 12. The fixture body 20 includes a lamp body 22 having an LED package 21 </ b> A that is a light emitting section, and a frame section 23 that is integrally provided on the lower side of the lamp body 22.
The lamp body 22 has an overall cylindrical outer peripheral wall 221, and a large number of heat radiating plates 222 are provided outside the outer peripheral wall 221 for releasing heat generated by the LED package 21A to the outside.

枠部２３は、灯体２２の外周壁２２１の下端に連続して設けられている筒体２５と、筒体２５の下端部設けられた鍔部２６を有する。鍔部２６は、ＬＥＤパッケージ２１Ａを囲むとともに、天井材１１の表面である天井面１１１において、取付孔１２の周部に接触する。
筒体２５は、ＬＥＤパッケージ２１Ａから離れる方向（すなわち、下方）に向かって拡開する円錐台形状を呈している。 The frame portion 23 includes a cylindrical body 25 provided continuously to the lower end of the outer peripheral wall 221 of the lamp body 22, and a flange portion 26 provided on the lower end portion of the cylindrical body 25. The flange portion 26 surrounds the LED package 21 </ b> A and contacts the peripheral portion of the mounting hole 12 on the ceiling surface 111 that is the surface of the ceiling material 11.
The cylindrical body 25 has a truncated cone shape that expands in a direction away from the LED package 21A (ie, downward).

鍔部２６は、筒体２５の下端部の周囲に設けられており、外側に突出するリング板状を呈している。鍔部２６の外径は、取付孔１２の内径よりも大きく、照明器具１０Ａを取付孔１２に取り付けた状態で、天井材１１の天井面１１１に当接する。
器具本体２０の底板２４と鍔部２６との間には、反射面３２が設けられている。反射面３２は、底板２４の外周から鍔部２６側に向かうに伴って天井面１１１から離れる方向、すなわち下方へ下がるように傾斜している。
なお、反射面３２および鍔部２６の下面は、光を反射するように処理されている。 The collar portion 26 is provided around the lower end portion of the cylindrical body 25 and has a ring plate shape protruding outward. The outer diameter of the collar portion 26 is larger than the inner diameter of the attachment hole 12, and abuts against the ceiling surface 111 of the ceiling material 11 in a state where the lighting fixture 10 </ b> A is attached to the attachment hole 12.
A reflective surface 32 is provided between the bottom plate 24 and the flange portion 26 of the instrument body 20. The reflection surface 32 is inclined so as to go away from the ceiling surface 111 as it goes from the outer periphery of the bottom plate 24 toward the flange portion 26, that is, downward.
In addition, the lower surface of the reflective surface 32 and the collar part 26 is processed so that light may be reflected.

筒体２５の外周面２５１には、枠部２３を取付孔１２に固定するための取付ばね２７が設けられている。取付ばね２７は、筒体２５の外周面２５１に沿って、複数個（例えば３個）略等間隔で設けられている。
取付ばね２７は、常時下方（図１において矢印Ａ方向）に付勢されており、鍔部２６の上面２６２と取付ばね２７との間に天井材１１を挟むことにより、照明器具１０Ａを取付孔１２に取り付ける。 An attachment spring 27 for fixing the frame portion 23 to the attachment hole 12 is provided on the outer peripheral surface 251 of the cylindrical body 25. A plurality of (for example, three) attachment springs 27 are provided at substantially equal intervals along the outer peripheral surface 251 of the cylindrical body 25.
The mounting spring 27 is always urged downward (in the direction of arrow A in FIG. 1), and the ceiling material 11 is sandwiched between the upper surface 262 of the flange portion 26 and the mounting spring 27 so that the luminaire 10 </ b> A is attached to the mounting hole. 12 is attached.

器具本体２０の下端面には底板２４が一体的に設けられている。底板２４の下面２４１（図３参照）には、ＬＥＤパッケージ２１Ａが取り付けられている。
また、天井材１１の裏面１１２には、電源部５０が載置されている。電源部５０は、天井裏に配線されている商用電源（図示省略）に接続されている。電源部５０は、電線５１によって灯体２２のＬＥＤパッケージ２１Ａに接続されており、点灯電力をＬＥＤパッケージ２１Ａに供給する。
なお、ここでは、電源部５０を灯体２２と別個に設けて、天井材１１の上面に載置しているが、灯体２２に電源部５０を一体的に取り付けることもできる。 A bottom plate 24 is integrally provided on the lower end surface of the instrument body 20. The LED package 21A is attached to the lower surface 241 (see FIG. 3) of the bottom plate 24.
A power supply unit 50 is placed on the back surface 112 of the ceiling material 11. The power supply unit 50 is connected to a commercial power supply (not shown) wired on the back of the ceiling. The power supply unit 50 is connected to the LED package 21A of the lamp body 22 by an electric wire 51, and supplies lighting power to the LED package 21A.
Here, the power supply unit 50 is provided separately from the lamp body 22 and placed on the upper surface of the ceiling member 11, but the power supply section 50 can be integrally attached to the lamp body 22.

器具本体２０の下側には、ＬＥＤパッケージ２１Ａの前方（下方）を覆うとともに、鍔部２６の外側まで覆うセード４０が取り付けられている。
セード４０は、乳白色の透光性を有する樹脂で形成されている。 A shade 40 that covers the front (downward) of the LED package 21 </ b> A and covers the outside of the collar portion 26 is attached to the lower side of the instrument body 20.
The seed 40 is made of milky white translucent resin.

図１および図２に示すように、ＬＥＤパッケージ２１Ａは、灯体２２の底板２４の下面２４１に取り付けられる円板状のパッケージ基板２８と、パッケージ基板２８に実装されるＬＥＤユニット２９を有する。
図２および図４（Ａ）〜（Ｃ）に示すように、ＬＥＤユニット２９では、ＬＥＤチップ３３は矩形板状の基台３１に取り付けられており、基台３１を介してパッケージ基板２８の実装面２８１に実装されている。 As shown in FIGS. 1 and 2, the LED package 21 </ b> A includes a disk-shaped package substrate 28 attached to the lower surface 241 of the bottom plate 24 of the lamp body 22 and an LED unit 29 mounted on the package substrate 28.
As shown in FIG. 2 and FIGS. 4A to 4C, in the LED unit 29, the LED chip 33 is attached to a rectangular plate-shaped base 31, and the package substrate 28 is mounted via the base 31. It is mounted on the surface 281.

ＬＥＤユニット２９は、パッケージ基板２８の中心ＣＰに対して略同心円状に複数列（ここでは、４列）実装されている。
なお、パッケージ基板２８の中心ＣＰに対して外側の列において隣接するＬＥＤユニット２９の間隔と、内側の列において隣接するＬＥＤユニット２９の間隔が、略同等になるように配置するのが望ましい。
従って、厳密に同心円状に円形に配置する場合に限定されない。 The LED units 29 are mounted in a plurality of rows (here, 4 rows) substantially concentrically with respect to the center CP of the package substrate 28.
Note that it is desirable that the intervals between the LED units 29 adjacent in the outer row with respect to the center CP of the package substrate 28 and the intervals between the LED units 29 adjacent in the inner row are substantially equal.
Accordingly, the present invention is not limited to the case where they are arranged concentrically in a circular shape.

ＬＥＤパッケージ２１Ａは、第１ＬＥＤユニット（第１ＬＥＤ）２９１と、第２ＬＥＤユニット（第２ＬＥＤ）２９２とを有する。
図４（Ａ）に示すように、第１ＬＥＤユニット２９１は、矩形板状の基台３１の下面３１１にＬＥＤチップ３３が取り付けられており、パッケージ基板２８の厚み方向に沿ってパッケージ基板２８から離れる方向、すなわち、下方に光を照射する。 The LED package 21 </ b> A includes a first LED unit (first LED) 291 and a second LED unit (second LED) 292.
As shown in FIG. 4A, the first LED unit 291 has the LED chip 33 attached to the lower surface 311 of the rectangular plate-shaped base 31 and is separated from the package substrate 28 along the thickness direction of the package substrate 28. Irradiate light in the direction, that is, downward.

また、図４（Ｂ）に示すように、第２ＬＥＤユニット２９２は、基台３１の側面３１２にＬＥＤチップ３３が取り付けられており、パッケージ基板２８の実装面２８１と平行方向に光を照射する。
第２ＬＥＤユニット２９２は、第１ＬＥＤユニット２９１を９０度回転させて縦方向に実装面２８１に取り付けて使用することができる。この場合、基台３１の直行する２面に接続部を設けることにより、同じＬＥＤユニット２９を兼用することができる。 As shown in FIG. 4B, the second LED unit 292 has the LED chip 33 attached to the side surface 312 of the base 31 and irradiates light in a direction parallel to the mounting surface 281 of the package substrate 28.
The second LED unit 292 can be used by rotating the first LED unit 291 by 90 degrees and attaching it to the mounting surface 281 in the vertical direction. In this case, the same LED unit 29 can also be used by providing connection portions on two orthogonal surfaces of the base 31.

図２および図３に示すように、第２ＬＥＤユニット２９２は、パッケージ基板２８の外周部において、鍔部２６に沿って配置されている。そして、第２ＬＥＤユニット２９２は鍔部２６に向かって、すなわち、外側に向かって光を照射するように実装されている。
さらに、図３に示すように、第２ＬＥＤユニット２９２は、光軸ＬＢ１が反射面３２に当たらずに、鍔部２６の下面（表面）２６１よりもパッケージ基板２８から離れた側（すなわち下方）を通過するように実装されている。 As shown in FIGS. 2 and 3, the second LED unit 292 is arranged along the flange portion 26 on the outer peripheral portion of the package substrate 28. And the 2nd LED unit 292 is mounted so that light may be irradiated toward the collar part 26, ie, an outer side.
Further, as shown in FIG. 3, the second LED unit 292 has a side (that is, a lower side) farther from the package substrate 28 than the lower surface (front surface) 261 of the flange portion 26 without the optical axis LB1 hitting the reflection surface 32. Implemented to pass.

なお、第２ＬＥＤユニット２９２は、前述したようなパッケージ基板２８の実装面２８１と平行方向に光を照射する場合に限らない。図４（Ｃ）に示すように、第２ＬＥＤユニット２９２の変形例として、基台３１に設けられた傾斜面３１３にＬＥＤチップ３３を取り付けて、実装面２８１と交差する斜め下方に光を照射する第３ＬＥＤユニット２９３を用いることもできる。
この場合にも、第３ＬＥＤユニット２９３は、鍔部２６側に光を照射することができる。
また、パッケージ基板２８の外周部に設けられている第２ＬＥＤユニット２９２の内側には、第１ＬＥＤユニット２９１が適宜の間隔で配置されている。 The second LED unit 292 is not limited to the case where the light is irradiated in the direction parallel to the mounting surface 281 of the package substrate 28 as described above. As a modified example of the second LED unit 292, as shown in FIG. 4C, the LED chip 33 is attached to the inclined surface 313 provided on the base 31, and light is irradiated obliquely downward intersecting the mounting surface 281. A third LED unit 293 can also be used.
Also in this case, the 3rd LED unit 293 can irradiate light to the collar part 26 side.
In addition, the first LED units 291 are arranged at appropriate intervals inside the second LED units 292 provided on the outer peripheral portion of the package substrate 28.

次に、第１実施形態の照明器具１０Ａの作用効果について説明する。
図１に示すように、天井材１１に設けられた取付孔１２から天井材１１の裏側に配置可能な器具本体２０には、ＬＥＤパッケージ２１Ａのパッケージ基板２８が支持されている。また、器具本体２０には、ＬＥＤパッケージ２１Ａを囲むとともに天井材１１の天井面１１１における取付孔１２の周部に接触可能な鍔部２６が支持されている。 Next, the effect of 10 A of lighting fixtures of 1st Embodiment is demonstrated.
As shown in FIG. 1, a package substrate 28 of an LED package 21 </ b> A is supported on a fixture main body 20 that can be disposed on the back side of the ceiling material 11 from an attachment hole 12 provided in the ceiling material 11. The fixture body 20 supports a flange portion 26 that surrounds the LED package 21 </ b> A and can contact the peripheral portion of the mounting hole 12 in the ceiling surface 111 of the ceiling material 11.

そして、図２に示すように、ＬＥＤパッケージ２１Ａは、パッケージ基板２８の厚み方向に沿ってパッケージ基板２８から離れる方向に光を照射する第１ＬＥＤユニット２９１と、鍔部２６に向かって光を照射する第２ＬＥＤユニット２９２とを有する。
このため、ＬＥＤユニット２９は、電源部５０から点灯電力を供給されると、第２ＬＥＤユニット２９２が鍔部２６の周りに光を照射するので鍔部２６が明るくなり、照明器具１０Ａと周囲との明暗差を小さくすることができる。 As shown in FIG. 2, the LED package 21 </ b> A irradiates light toward the first LED unit 291 that irradiates light in a direction away from the package substrate 28 along the thickness direction of the package substrate 28, and the flange portion 26. And a second LED unit 292.
For this reason, when the LED unit 29 is supplied with lighting power from the power supply unit 50, the second LED unit 292 irradiates light around the collar part 26, so the collar part 26 becomes bright, and the lighting fixture 10A and the surroundings The difference in brightness can be reduced.

また、鍔部２６に向かって光を照射する第２ＬＥＤユニット２９２は、鍔部２６に沿って配置されているので、全周にわたって鍔部２６に光を照射できる。   Moreover, since the 2nd LED unit 292 which irradiates light toward the collar part 26 is arrange | positioned along the collar part 26, it can irradiate light to the collar part 26 over the perimeter.

さらに、図３に示すように、パッケージ基板２８と鍔部２６との間に、傾斜した反射面３２を設けるとともに、光軸ＬＢ１が鍔部２６の下面２６１よりもパッケージ基板２８から離れた側を通過するように、第２ＬＥＤユニット２９２を配置した。
このため、鍔部２６に向かう第２ＬＥＤユニット２９２の光軸ＬＢ１が反射面３２によって邪魔されないので、鍔部２６を明るくすることができる。
また、図２に示すように、第２ＬＥＤユニット２９２の光軸ＬＢ１よりも器具本体２０側に照射された光ＬＢ２は、反射面３２に当たって下方へ反射（光ＬＢ３）されるので、第２ＬＥＤユニット２９２からの光を有効に照明に用いることができる。 Further, as shown in FIG. 3, an inclined reflecting surface 32 is provided between the package substrate 28 and the flange portion 26, and the side where the optical axis LB1 is farther from the package substrate 28 than the lower surface 261 of the flange portion 26 is provided. The 2nd LED unit 292 was arrange | positioned so that it might pass.
For this reason, since the optical axis LB1 of the 2nd LED unit 292 which goes to the collar part 26 is not disturbed by the reflective surface 32, the collar part 26 can be made bright.
Further, as shown in FIG. 2, the light LB2 irradiated to the instrument body 20 side from the optical axis LB1 of the second LED unit 292 strikes the reflection surface 32 and is reflected downward (light LB3), so the second LED unit 292 Can be used for illumination effectively.

（第２実施形態）
次に、第２実施形態の照明器具について説明する。
なお、前述した第１実施形態の照明器具１０Ａと共通する部位には同じ符号を付して、重複する説明を省略することとする。
図５に示すように、第２実施形態の照明器具１０Ｂでは、鍔部２６に沿って配置され、鍔部２６に向かって光を照射する第２ＬＥＤユニット２９２の光軸ＬＢ１が、鍔部２６の下面２６１位置の高さにある。 (Second Embodiment)
Next, the lighting fixture of 2nd Embodiment is demonstrated.
In addition, the same code | symbol is attached | subjected to the site | part which is common in 10 A of lighting fixtures of 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.
As shown in FIG. 5, in the lighting fixture 10 </ b> B of the second embodiment, the optical axis LB <b> 1 of the second LED unit 292 that is arranged along the collar part 26 and emits light toward the collar part 26 is It is at the height of the lower surface 261 position.

以上、説明した第２実施形態の照明器具１０Ｂによれば、鍔部２６に沿って配置された第２ＬＥＤユニット２９２からの光ＬＢ１は、一部が反射面３２に照射されて、下方へ反射する。また、一部は、鍔部２６の下面２６１に沿って鍔部２６の外側に照射されるので、鍔部２６が明るくなり、照明器具１０Ｂと周囲との明暗差を小さくすることができる。   As described above, according to the lighting fixture 10B of the second embodiment described above, a part of the light LB1 from the second LED unit 292 arranged along the collar portion 26 is irradiated on the reflecting surface 32 and reflected downward. . Moreover, since a part is irradiated to the outer side of the collar part 26 along the lower surface 261 of the collar part 26, the collar part 26 becomes bright, and the brightness difference between the lighting fixture 10B and the circumference | surroundings can be made small.

（第３実施形態）
次に、第３実施形態の照明器具について説明する。
なお、前述した第１実施形態の照明器具１０Ａおよび第２実施形態の照明器具１０Ｂと共通する部位には同じ符号を付して、重複する説明を省略することとする。
図６に示すように、第３実施形態の照明器具１０Ｃでは、器具本体２０の底板２４と鍔部２６との間に反射面３２（図２参照）を設けていない。このため、器具本体２０の底板２４と鍔部２６とが同一面となる。 (Third embodiment)
Next, the lighting fixture of 3rd Embodiment is demonstrated.
In addition, suppose that the same code | symbol is attached | subjected to the site | part which is common in the lighting fixture 10A of 1st Embodiment mentioned above, and the lighting fixture 10B of 2nd Embodiment, and the overlapping description is abbreviate | omitted.
As shown in FIG. 6, in the lighting fixture 10C of 3rd Embodiment, the reflective surface 32 (refer FIG. 2) is not provided between the baseplate 24 and the collar part 26 of the fixture main body 20. As shown in FIG. For this reason, the bottom plate 24 of the instrument main body 20 and the collar part 26 become the same surface.

以上、説明した第３実施形態の照明器具１０Ｃによれば、パッケージ基板２８の外周部に設けられている第２ＬＥＤユニット２９２から鍔部２６側に照射された光のうち、一部が上向きに照射される（光ＬＢ４）。この光ＬＢ４は、鍔部２６の下面２６１で反射して、外側斜め下方へ照射される（光ＬＢ５）。
これにより、鍔部２６の下面および鍔部２６の外側が明るくなるので、照明器具１０Ｃと周囲との明暗差を小さくすることができる。 As described above, according to the lighting fixture 10 </ b> C of the third embodiment described above, a part of the light emitted from the second LED unit 292 provided on the outer peripheral portion of the package substrate 28 to the flange portion 26 side is irradiated upward. (Light LB4). The light LB4 is reflected by the lower surface 261 of the collar portion 26 and is irradiated obliquely downward on the outer side (light LB5).
Thereby, since the lower surface of the collar part 26 and the outer side of the collar part 26 become bright, the brightness difference between 10 C of lighting fixtures and the circumference | surroundings can be made small.

（第４実施形態）
次に、第４実施形態の照明器具について説明する。
なお、前述した第１実施形態の照明器具１０Ａないし第３実施形態の照明器具１０Ｃと共通する部位には同じ符号を付して、重複する説明を省略することとする。
図７に示すように、第４実施形態の照明器具１０ＤのＬＥＤパッケージ２１Ｄでは、鍔部２６側に向かって光を照射する第２ＬＥＤユニット２９２が、最外列ではなく、例えば外側から２列目に配置されている。そして、最外列には、下方に光を照射する第１ＬＥＤユニット２９１が配置されている。
さらに、図４（Ｃ）において前述した外側斜め下方へ光を照射する第３ＬＥＤユニット２９３を、例えば第２ＬＥＤユニット２９２の内側に設けることができる。 (Fourth embodiment)
Next, the lighting fixture of 4th Embodiment is demonstrated.
In addition, the same code | symbol is attached | subjected to the site | part which is common in the lighting fixture 10A of 1st Embodiment thru | or the lighting fixture 10C of 3rd Embodiment mentioned above, and the overlapping description is abbreviate | omitted.
As shown in FIG. 7, in the LED package 21 </ b> D of the lighting apparatus 10 </ b> D of the fourth embodiment, the second LED unit 292 that emits light toward the flange portion 26 side is not the outermost row, for example, the second row from the outside. Is arranged. In the outermost row, a first LED unit 291 that emits light downward is arranged.
Furthermore, the 3rd LED unit 293 which irradiates light to the outer diagonal downward mentioned above in FIG.4 (C) can be provided inside the 2nd LED unit 292, for example.

以上、説明した第４実施形態の照明器具１０Ｄによれば、第２ＬＥＤユニット２９２および第３ＬＥＤユニット２９３から外向きに光が照射される。
これにより、鍔部２６の下面および鍔部２６の外側が明るくなるので、照明器具１０Ｄと周囲との明暗差を小さくすることができる。 As described above, according to the lighting fixture 10D of the fourth embodiment described above, light is emitted outward from the second LED unit 292 and the third LED unit 293.
Thereby, since the lower surface of the collar part 26 and the outer side of the collar part 26 become bright, the brightness difference between 10D of lighting fixtures and the circumference | surroundings can be made small.

本発明の照明器具は、前述した各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。   The lighting fixture of the present invention is not limited to the above-described embodiments, and appropriate modifications and improvements can be made.

１０Ａ、１０Ｂ、１０Ｃ、１０Ｄ 照明器具
１１ 天井材
１１１ 天井面（表面）
１２ 取付孔
２０ 器具本体
２１Ａ、２１Ｄ ＬＥＤパッケージ（発光部）
２６ 鍔部
２６１ 下面（鍔部の表面）
２８ パッケージ基板（回路基板）
２９１ 第１ＬＥＤユニット（第１ＬＥＤ）
２９２ 第２ＬＥＤユニット（第２ＬＥＤ）
３２ 反射面
ＬＢ 光軸 10A, 10B, 10C, 10D Lighting fixture 11 Ceiling material 111 Ceiling surface (surface)
12 Mounting hole 20 Instrument body 21A, 21D LED package (light emitting part)
26 collar part 261 bottom surface (surface of collar part)
28 Package substrate (circuit board)
291 First LED unit (first LED)
292 Second LED unit (second LED)
32 Reflecting surface LB Optical axis

Claims (2)

天井材に設けられた取付孔から前記天井材の裏側に配置可能な器具本体と、
前記器具本体に回路基板が支持された発光部と、
前記器具本体に支持され、前記発光部を囲むとともに前記天井材の表面における前記取付孔の周部に接触可能な鍔部と、を備え、
前記発光部は、前記回路基板の厚み方向に沿って前記回路基板から離れる方向に光を照射する第１ＬＥＤと、前記鍔部に向かって光を照射する第２ＬＥＤとを有し、
前記回路基板と前記鍔部との間に傾斜して設けられた反射面を有し、
前記第２ＬＥＤは、光軸が前記鍔部の表面よりも前記回路基板から離れた側に配置されている照明器具。 An instrument body that can be placed on the back side of the ceiling material from a mounting hole provided in the ceiling material,
A light-emitting unit in which a circuit board is supported by the instrument body;
A flange that is supported by the instrument body and surrounds the light emitting part and can contact the peripheral part of the mounting hole on the surface of the ceiling material;
The light emitting unit may possess a first 1LED for irradiating light in a direction away from the circuit board along a thickness direction of the circuit board, and a second 2LED for irradiating light toward the flange portion,
Having a reflective surface provided inclined between the circuit board and the flange,
The second LED is a luminaire in which an optical axis is arranged on a side farther from the circuit board than a surface of the flange portion . 請求項１に記載の照明器具において、
前記第２ＬＥＤは、前記鍔部に沿って配置されている照明器具。 The lighting fixture according to claim 1,
The second LED is a luminaire arranged along the flange.
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