JP6702374B2 - lighting equipment - Google Patents

lighting equipment Download PDF

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Publication number
JP6702374B2
JP6702374B2 JP2018154596A JP2018154596A JP6702374B2 JP 6702374 B2 JP6702374 B2 JP 6702374B2 JP 2018154596 A JP2018154596 A JP 2018154596A JP 2018154596 A JP2018154596 A JP 2018154596A JP 6702374 B2 JP6702374 B2 JP 6702374B2
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substrate
shade
light
light emitting
instrument body
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JP2018198215A (en
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河野 誠
誠 河野
佐々木 淳
淳 佐々木
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Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
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Description

本発明の実施形態は、半導体発光素子を用いた照明器具に関する。 Embodiments of the present invention relate to a lighting device using a semiconductor light emitting element.

例えばシーリングライトなどの照明器具では、器具本体の下面に複数のLED素子が配置され、この器具本体の下面側をセードで覆っている。 For example, in a lighting device such as a ceiling light, a plurality of LED elements are arranged on the lower surface of the device body, and the lower surface side of the device body is covered with a shade.

一般に、器具本体の中央には、開口部が形成され、この開口部に引掛シーリングに取り付けるための取付構造が設けられていて、下面側がセードで覆われている。 Generally, an opening is formed in the center of the instrument body, and an attachment structure for attaching to a hook ceiling is provided in the opening, and the lower surface side is covered with a shade.

特開2011−134684号公報JP, 2011-134684, A

しかしながら、上記のような照明器具において、セードに輝度むらが生じる場合がある。
本発明が解決しようとする課題は、セードの輝度を均一化できる照明器具を提供することである。
However, in the above-described lighting equipment, uneven brightness may occur in the shade.
The problem to be solved by the present invention is to provide a lighting device capable of making the brightness of shade uniform.

本実施形態による照明器具は、一面側に形成された環状の基板配置部における外周辺部から周方向で天井面方向へ向けて立ち上がる部分と、前記基板配置部の周辺部に形成されたフランジ部とにより、背面側へ突出する環状の凹部が形成されているとともに、前記基板配置部に複数の挿通孔が形成され、天井面に設置されている引掛シーリングに取り付けられる器具本体と;前記環状の基板配置部に配設され、半導体発光素子を実装するとともに前記器具本体側に嵌合する複数の嵌合孔が形成された発光モジュール基板と;前記半導体発光素子に対向するとともに前記発光モジュール基板を前面側から覆うよう配設され、前記基板配置部に形成された挿通孔に挿通可能な爪部が形成されているカバー部と;前記器具本体の一面側を覆うセードと;を具備ていることを特徴とする。 The luminaire according to the present embodiment has a portion that rises from the outer peripheral portion of the annular substrate arrangement portion formed on the one surface side toward the ceiling surface direction in the circumferential direction, and the flange portion formed in the peripheral portion of the substrate arrangement portion. and by, with an annular recess that projects to the back side is formed, the formed plurality of insertion holes in the board placement portion, and a fixture main body mounted to ceiling-mounted hooking receptacle which is installed on the ceiling surface; of the annular A light emitting module substrate which is disposed in the substrate arrangement part, and in which the semiconductor light emitting element is mounted, and a plurality of fitting holes which are fitted to the apparatus main body side are formed; are provided with; is disposed so as to cover the front side, and a cover portion which can be inserted through the claw portion formed through holes in the substrate placement portion is formed; a shade covering the one surface of the instrument body It is characterized by

本発明の実施形態によれば、セードの全体の輝度の均一化が期待できる。 According to the embodiment of the present invention, it is expected that the brightness of the entire shade is uniformed.

一実施形態を示し、(a)(b)に器具本体からの突出部の突出高さが異なる照明器具を示す断面図である。FIG. 4 is a cross-sectional view showing an embodiment, and FIGS. 7A and 7B are diagrams showing a lighting fixture in which a protrusion height of a protrusion from the fixture body is different. 同上照明器具の分解状態の斜視図である。It is a perspective view of an exploded state of a lighting fixture same as the above. 同上照明器具の配光制御体の断面図である。It is sectional drawing of the light distribution control body of a lighting fixture same as the above. 同上配光制御体による配光図である。It is a light distribution diagram by the light distribution control body same as the above.

以下、一実施形態を、図1ないし図4を参照して説明する。 Hereinafter, one embodiment will be described with reference to FIGS. 1 to 4.

図1および図2に示すように、照明器具10は、天井面に設置されている引掛シーリングにアダプタを介して取り付けられる円形のシーリングライトである。なお、照明器具10から光を照射する方向を前面側、前面側に対して反対側を背面側と呼び、これら前面側および背面側は設置状態の照明器具10の下面側および上面側に対応する。 As shown in FIGS. 1 and 2, the lighting fixture 10 is a circular ceiling light that is attached to a hook ceiling installed on a ceiling surface via an adapter. The direction in which light is emitted from the luminaire 10 is called the front side, and the side opposite to the front side is called the back side, and these front and back sides correspond to the lower surface side and the upper surface side of the luminaire 10 in the installed state. ..

照明器具10は、器具本体11を備え、この器具本体11の下面側に発光モジュールの基板12、透光カバー13およびセード14が取り付けられ、器具本体11の上面側に枠体15およびケース16が取り付けられる。ケース16には器具取付部としてのアダプタガイド17および点灯回
路18などが取り付けられている。
The lighting fixture 10 includes a fixture body 11, a light emitting module substrate 12, a translucent cover 13 and a shade 14 are attached to the lower face side of the fixture body 11, and a frame 15 and a case 16 are provided on the top face side of the fixture body 11. It is attached. An adapter guide 17 as a device mounting portion, a lighting circuit 18, and the like are attached to the case 16.

そして、器具本体11は、金属製で円盤状に形成されている。器具本体11の一面である下面には、中央域に円形の突出部21が一体に突出され、突出部21の周囲に環状の半導体発光素子配置部としての基板配置部22が形成され、基板配置部22と周辺部のフランジ部23との間に環状の凹部24が形成されている。 The instrument body 11 is made of metal and has a disk shape. On the lower surface, which is one surface of the device body 11, a circular projecting portion 21 is integrally projected in the central region, and a substrate disposing portion 22 as an annular semiconductor light emitting element disposing portion is formed around the projecting portion 21. An annular recess 24 is formed between the portion 22 and the peripheral flange portion 23.

突出部21の中央にはアダプタガイド17が嵌り込む開口部25が形成され、開口部25の側部に窓孔26が形成され、周辺部には被取付部として周方向に長い長孔状の複数の爪挿通孔27およびねじ止め用の1つの取付孔28が形成されている。 An opening 25 into which the adapter guide 17 is fitted is formed in the center of the projecting portion 21, a window hole 26 is formed in a side portion of the opening 25, and a peripherally long slot-shaped elongated hole is formed as a mounted portion. A plurality of claw insertion holes 27 and one mounting hole 28 for screwing are formed.

基板配置部22には、ケース16を取り付けるための環状の台部29が器具本体11の上面側に突出形成されている。基板配置部22の周辺部には、半球状の複数の凸部30が突設されているとともに周方向に長い長孔状の複数の爪挿通孔27が形成されている。 An annular base portion 29 for mounting the case 16 is formed on the board placement portion 22 so as to project from the upper surface side of the instrument body 11. A plurality of hemispherical protrusions 30 are provided in the peripheral portion of the substrate placement portion 22 and a plurality of long claw insertion holes 27 that are long in the circumferential direction are formed.

凹部24には、セード14を器具本体11に対して回動させることによってセード14を着脱可能に取り付ける複数のセード取付金具31が取り付けられている。セード取付金具31は、基板配置部22から突出せず、凹部24内に収容されている。 A plurality of shade attachment fittings 31 for detachably attaching the shade 14 by rotating the shade 14 with respect to the instrument body 11 are attached to the recess 24. The shade attachment fitting 31 does not protrude from the board disposition portion 22 and is accommodated in the recess 24.

また、発光モジュールの基板12は、半環状に形成されており、一対の基板12が器具本体11の基板配置部22に配置されることによって一対の基板12が環状に組み合わされる。基板12は、例えば金属、セラミックスおよび樹脂などの材料で形成されている。基板12の周辺部には、各凸部30と凹凸嵌合する複数の嵌合孔34が形成されている。 Further, the substrate 12 of the light emitting module is formed in a semi-annular shape, and the pair of substrates 12 are arranged in the substrate arranging portion 22 of the instrument body 11 to combine the pair of substrates 12 in a circular shape. The substrate 12 is made of a material such as metal, ceramics, or resin. A plurality of fitting holes 34 are formed in the peripheral portion of the substrate 12 so as to fit in the projections 30.

基板12の前面には、配線パターンが形成され、この配線パターンに接続されて例えばLED素子や有機ELなどを含む複数の半導体発光素子が同心円上に複数列実装されている。実施形態では、半導体発光素子として、面実装タイプのSMDパッケージ式のLED素子35が用いられ、これら複数のLED素子35が基板12に円周方向に沿って等間隔に配列されているとともに同心円上に2列配置されている。LED素子35の発光部は基板12に対して反対方向であって照明器具10の設置状態で直下方向に向けられる。さらに、基板12の前面には、配線パターンを覆って高反射率特性を有する反射面36が形成されている。 A wiring pattern is formed on the front surface of the substrate 12, and a plurality of semiconductor light emitting elements including, for example, an LED element, an organic EL, and the like are connected to the wiring pattern and mounted in a plurality of concentric rows. In the embodiment, a surface-mounting type SMD package type LED element 35 is used as the semiconductor light emitting element, and the plurality of LED elements 35 are arranged on the substrate 12 at equal intervals along the circumferential direction and on the concentric circles. Are arranged in two rows. The light emitting portion of the LED element 35 is directed in the opposite direction to the substrate 12 and in the direct downward direction when the lighting fixture 10 is installed. Further, on the front surface of the substrate 12, a reflection surface 36 having a high reflectance characteristic is formed so as to cover the wiring pattern.

また、透光カバー13は、光透過性および導光性を有する透明な樹脂製で、中央に開口部39が開口する環状に形成されている。透光カバー13は、基板12を器具本体11との間に覆うことが可能な大きさに形成された環状で平板状のカバー部40を有している。 The translucent cover 13 is made of a transparent resin having a light transmissive property and a light guiding property, and is formed in an annular shape having an opening 39 at the center. The translucent cover 13 has an annular flat plate-like cover portion 40 formed to have a size capable of covering the substrate 12 with the instrument body 11.

このカバー部40には、同心円上に2列に配列されるLED素子35にそれぞれ対向してLED素子35が発する光の配光を制御する環状の配光制御体41が同心円上に2列形成されている。図3に示すように、配光制御体41は、LED素子35を収容する凹部42を有する山形に形成され、凹部42に面してLED素子35からの光を入射する入射面41aが形成され、外面に配光制御体41内に入射した光を出射する出射面41bが形成されている。 In this cover portion 40, annular light distribution control bodies 41 are arranged in two concentric circles to control the light distribution of the light emitted from the LED elements 35 so as to face the LED elements 35 arranged in two concentric circles. Has been done. As shown in FIG. 3, the light distribution control body 41 is formed in a mountain shape having a concave portion 42 for accommodating the LED element 35, and an incident surface 41a which faces the concave portion 42 and which receives light from the LED element 35 is formed. An emission surface 41b that emits the light that has entered the light distribution control body 41 is formed on the outer surface.

配光制御体41は、基準軸43を中心として器具本体11の中央側方向と反対の外側方向とに軸対称の断面形状に形成されているとともに、基準軸43がLED素子35の発光部の中心35aより器具本体11の外側方向に位置されている。言い換えれば、LED素子35の発光部の中心35aが配光制御体41の基準軸43より器具本体11の中央側方向に位置されている。 The light distribution control body 41 is formed in a cross-sectional shape that is axially symmetric with respect to the central side direction of the instrument body 11 and the opposite outer direction about the reference axis 43, and the reference axis 43 is the light emitting portion of the LED element 35. It is located outward of the instrument body 11 from the center 35a. In other words, the center 35a of the light emitting portion of the LED element 35 is located closer to the center of the instrument body 11 than the reference axis 43 of the light distribution control body 41.

配光制御体41の基準軸43より外周側の入射面41aおよび出射面41bの少なくともいずれか一方には、例えば凹凸パターンによる光拡散面が形成されている。さらに、その光拡散面による拡散特性は、器具本体11の中央側方向から外側方向に向かうにしたがって徐々に拡散度が増すように形成されている。また、同心円上の複数列の配光制御体41のうち、内周側の配光制御体41より外周側の配光制御体41の方が、光拡散面の拡散度が大きくなるように形成されている。 At least one of the entrance surface 41a and the exit surface 41b on the outer peripheral side of the reference axis 43 of the light distribution control body 41 is provided with a light diffusing surface formed of, for example, an uneven pattern. Further, the diffusion characteristic of the light diffusing surface is formed such that the diffusion degree gradually increases from the central side direction of the instrument body 11 toward the outer side direction. Further, among the plurality of concentric circles of the light distribution control body 41, the light distribution control body 41 on the outer peripheral side is formed so that the diffusion degree of the light diffusion surface is larger than that of the light distribution control body 41 on the inner peripheral side. Has been done.

図2に示すように、透光カバー13の背面側で内周側および外周側には、器具本体11の各爪挿通孔27に挿通可能とする複数の爪部44が一体に突出形成されている。これら複数の爪部44は、透光カバー13の周方向の一方である装着回動方向へ向けて略L字形に形成されている。そして、各爪部44を器具本体11の各爪挿通孔27に挿通して透光カバー13を装着回動方向に回動させることにより、各爪部44の先端が器具本体11の背面側に乗り上げて透光カバー13を器具本体11に向けて引き寄せるとともに、各爪部44が器具本体11の背面側に引っ掛かって器具本体11と透光カバー13との間に基板12を挟持した状態で器具本体11と透光カバー13とが固定される。 As shown in FIG. 2, a plurality of claw portions 44 that can be inserted into the respective claw insertion holes 27 of the device body 11 are integrally formed on the inner peripheral side and the outer peripheral side of the rear surface of the translucent cover 13 so as to project. There is. The plurality of claw portions 44 are formed in a substantially L shape in the mounting rotation direction, which is one of the circumferential directions of the translucent cover 13. Then, by inserting each claw portion 44 into each claw insertion hole 27 of the instrument body 11 and rotating the light-transmitting cover 13 in the mounting rotation direction, the tip of each claw portion 44 is brought to the back side of the instrument body 11. The device is mounted in a state in which the transparent cover 13 is pulled up toward the device main body 11 and the claws 44 are hooked on the back side of the device main body 11 to sandwich the substrate 12 between the device main body 11 and the transparent cover 13. The main body 11 and the translucent cover 13 are fixed.

透光カバー13の内周部の1箇所にはねじ挿通孔46が設けられている。ねじをねじ挿通孔46を通じて器具本体11の取付孔28にねじ込むことにより、透光カバー13が装着回動方向に対して反対の取外し回動方向に回動するのが規制される。 A screw insertion hole 46 is provided at one location on the inner peripheral portion of the translucent cover 13. By screwing the screw into the mounting hole 28 of the device body 11 through the screw insertion hole 46, rotation of the translucent cover 13 in the removal rotation direction opposite to the mounting rotation direction is restricted.

また、セード14は、透光性を有する乳白色の樹脂製で、上面側が開口され、上面側の内周縁部に各セード取付金具31に取り付けられる取付段部が形成されている。器具本体11に取り付けられるセード14により、器具本体11の下面、基板12および透光カバー13などが覆われる。 The shade 14 is made of translucent milky white resin, has an opening on the upper surface side, and has an attachment step portion attached to each of the shade attachment fittings 31 on the inner peripheral edge portion on the upper surface side. The shade 14 attached to the device body 11 covers the lower surface of the device body 11, the substrate 12, the translucent cover 13, and the like.

図1(a)に示すように、器具本体11の中央に対向するセード14の中央部分14aは、円周上の各LED素子35から突出部21の周辺部に接して延びる接線である仮想線48が器具本体11の中央側で交差する交点Pの位置より器具本体11側から離反する位置に配置されている。 As shown in FIG. 1( a ), a central portion 14 a of the shade 14 facing the center of the device body 11 is a virtual line that is a tangent line extending from each LED element 35 on the circumference in contact with the peripheral portion of the protruding portion 21. The device 48 is arranged at a position separated from the device body 11 side from the position of the intersection P on the center side of the device body 11.

また、図2に示すように、枠体15は、透光性を有する樹脂製で環状に形成され、内周側縁部が器具本体11の上面側周縁部に取り付けられる。枠体15の下面の1箇所には一対のセンサ用窓孔50が形成されている。 Further, as shown in FIG. 2, the frame body 15 is made of a resin having a light-transmitting property and formed in an annular shape, and an inner peripheral side edge portion thereof is attached to an upper surface side peripheral portion of the instrument body 11. A pair of sensor window holes 50 are formed at one location on the lower surface of the frame body 15.

また、ケース16は、金属製で、周辺部に下面側に突出する側壁部53が形成され、この側壁部53が器具本体11の台部29上に取り付けられている。ケース16内には器具本体11の上面との間にアダプタガイド17や点灯回路18を収容して取り付ける収容空間54を形成している。ケース16の上面には、照明器具10を天井面に設置した際に天井面との間で圧縮されて照明器具10のがたつきを防止したり照明器具10が回転するのを防止する複数のクッション材55が取り付けられている。 Further, the case 16 is made of metal, and a side wall portion 53 protruding to the lower surface side is formed in the peripheral portion, and the side wall portion 53 is attached on the base portion 29 of the instrument body 11. An accommodation space 54 for accommodating and accommodating the adapter guide 17 and the lighting circuit 18 is formed between the case 16 and the upper surface of the instrument body 11. On the upper surface of the case 16, when the lighting device 10 is installed on the ceiling surface, a plurality of members which are compressed between the lighting device 10 and the ceiling surface to prevent rattling of the lighting device 10 and rotation of the lighting device 10 are provided. The cushion material 55 is attached.

また、アダプタガイド17は、筒状に形成され、天井面に設置されている引掛シーリングに装着されたアダプタに嵌め込むことにより、アダプタに着脱可能に取り付けられる。アダプタガイド17には、器具本体11の窓孔26から下面側に臨む常夜灯58やリモコン番号切換スイッチ部59などが配置されている。なお、常夜灯58やリモコン番号切換スイッチ部59などは、点灯回路18の基板上に配置してもよい。 Further, the adapter guide 17 is formed in a tubular shape, and is removably attached to the adapter by being fitted into the adapter attached to the hook ceiling installed on the ceiling surface. The adapter guide 17 is provided with a night light 58, a remote control number changeover switch unit 59, and the like, which are exposed from the window hole 26 of the instrument body 11 to the lower surface side. The night light 58, the remote control number changeover switch unit 59, and the like may be arranged on the substrate of the lighting circuit 18.

また、点灯回路18は、アダプタガイド17の周囲に配置されてケース16側に固定された回路基板62を有し、この回路基板62上に点灯回路18を構成する各種の電子部品が実装されている。点灯回路18の電源入力側にはアダプタおよび引掛シーリングを介して商用交流電源が入力され、点灯回路18の電源出力側は基板12の配線パターンを通じて複数のLED素子35に接続されている。そして、点灯回路18は、交流電源を整流平滑し、所定の直流電源に変換してLED素子35に供給する。 Further, the lighting circuit 18 has a circuit board 62 arranged around the adapter guide 17 and fixed to the case 16 side, and various electronic components constituting the lighting circuit 18 are mounted on the circuit board 62. There is. Commercial AC power is input to the power input side of the lighting circuit 18 via an adapter and a hook ceiling, and the power output side of the lighting circuit 18 is connected to the plurality of LED elements 35 through the wiring pattern of the substrate 12. Then, the lighting circuit 18 rectifies and smoothes the AC power source, converts the AC power source into a predetermined DC power source, and supplies it to the LED element 35.

さらに、点灯回路18は、照度センサ63で照明器具10が設置される照明空間の明るさを検知してLED素子35の出力を自動的に調整する機能を有している。
照度センサ63は器具本体11および枠体15の上面に取り付けられるセンサケース65に収容され、枠体15のセンサ用窓孔50に対向して配置される。
Further, the lighting circuit 18 has a function of detecting the brightness of the illumination space in which the lighting fixture 10 is installed by the illuminance sensor 63 and automatically adjusting the output of the LED element 35.
The illuminance sensor 63 is housed in a sensor case 65 attached to the upper surfaces of the instrument body 11 and the frame 15, and is arranged so as to face the sensor window hole 50 of the frame 15.

次に、照明器具10を組み立てるには、アダプタガイド17および点灯回路18などを取り付けたケース16を器具本体11の上面に取り付ける。さらに、枠体15を器具本体11の上面に取り付け、照度センサ63を点灯回路18に電気的に接続するとともに、照度センサ63を保持しているセンサケース65を器具本体11および枠体15の上面に取り付ける。 Next, to assemble the lighting fixture 10, the case 16 to which the adapter guide 17 and the lighting circuit 18 are attached is attached to the upper surface of the fixture body 11. Further, the frame body 15 is attached to the upper surface of the equipment main body 11, the illuminance sensor 63 is electrically connected to the lighting circuit 18, and the sensor case 65 holding the illuminance sensor 63 is attached to the upper surface of the equipment main body 11 and the frame body 15. Attach to.

器具本体11の基板配置部22が上方に向くように上下を反転させた状態で、基板配置部22上に各基板12を載置し、基板12の各嵌合孔34を基板配置部22の各凸部30に凹凸嵌合させる。これにより、基板12が器具本体11の基板配置部22の面に沿った方向(水平方向)の位置が位置決め保持される。さらに、両基板12間や基板12と点灯回路18との間の配線を行う。 In a state in which the board disposing portion 22 of the device body 11 is turned upside down so as to face upward, each board 12 is placed on the board disposing portion 22, and each fitting hole 34 of the board 12 is formed in the board disposing portion 22. The convex portions 30 are fitted in concave and convex. As a result, the board 12 is positioned and held at the position in the direction (horizontal direction) along the surface of the board disposing portion 22 of the instrument body 11. Further, wiring is performed between both substrates 12 and between the substrate 12 and the lighting circuit 18.

基板12を覆うように透光カバー13を被せながら、透光カバー13の各爪部44を器具本体11の各爪挿通孔27に挿通させ、透光カバー13を装着回動方向に回動させることにより、各爪部44の先端が器具本体11の背面側に乗り上げて透光カバー13を器具本体11に向けて引き寄せる。このとき、透光カバー13が基板12に当接し、基板12を器具本体11に押圧する。そして、各爪部44が器具本体11の背面側に引っ掛かると、器具本体11と透光カバー13との間に基板12を挟持した状態で器具本体11と透光カバー13とが固定される。 While covering the substrate 12 with the translucent cover 13, the claw portions 44 of the translucent cover 13 are inserted into the claw insertion holes 27 of the instrument body 11, and the translucent cover 13 is rotated in the mounting rotation direction. As a result, the tips of the claws 44 ride on the back side of the instrument body 11 and pull the light-transmitting cover 13 toward the instrument body 11. At this time, the translucent cover 13 contacts the substrate 12 and presses the substrate 12 against the instrument body 11. Then, when the claws 44 are hooked on the back side of the device body 11, the device body 11 and the light-transmitting cover 13 are fixed with the substrate 12 sandwiched between the device body 11 and the light-transmitting cover 13.

ねじを透光カバー13のねじ挿通孔46を通じて器具本体11の取付孔28にねじ込んで固定し、透光カバー13が装着回動方向に対して反対の取外し回動方向に回動するのを規制する。 The screw is screwed into the mounting hole 28 of the device body 11 through the screw insertion hole 46 of the light transmitting cover 13 and fixed, and the light transmitting cover 13 is restricted from rotating in the removal rotation direction opposite to the mounting rotation direction. To do.

基板12および透光カバー13などを覆うようにセード14を器具本体11に被せ、所定の装着回動方向に回動させることにより、セード14をセード取付金具31に取り付ける。
なお、照明器具10の組立順序は、このような順序に限られるものではない。
The shade 14 is attached to the shade fitting 31 by covering the device body 11 with the shade 14 so as to cover the substrate 12 and the translucent cover 13, and rotating the shade in a predetermined mounting rotation direction.
The order of assembling the lighting fixture 10 is not limited to this order.

そして、照明器具10を設置するには、予めセード14を外した照明器具10のアダプタガイド17を天井面の引掛シーリングに装着したアダプタに取り付ける。アダプタから導出されている配線を点灯回路18側と接続し、引掛シーリングと点灯回路18とを電気的に接続する。セード14を器具本体11に装着する。 Then, in order to install the lighting fixture 10, the adapter guide 17 of the lighting fixture 10 from which the shade 14 has been removed in advance is attached to the adapter mounted on the ceiling ceiling hook ceiling. The wiring derived from the adapter is connected to the lighting circuit 18 side, and the hook ceiling and the lighting circuit 18 are electrically connected. Attach the shade 14 to the device body 11.

そして、商用交流電源が点灯回路18に供給されることにより、点灯回路18から複数のLED素子35に点灯電力が供給され、複数のLED素子35が点灯する。 Then, by supplying commercial AC power to the lighting circuit 18, lighting power is supplied from the lighting circuit 18 to the plurality of LED elements 35, and the plurality of LED elements 35 are lit.

複数のLED素子35が発生する光は、透光カバー13の配光制御体41によって配光が制御されてセード14に入射し、セード14を透過して照明空間に照射される。
また、照度センサ63で照明器具10が設置される照明空間の明るさを検知し、点灯回路18がLED素子35の出力を自動的に調整する。
The light generated by the plurality of LED elements 35 is incident on the shade 14 with its light distribution controlled by the light distribution control body 41 of the translucent cover 13, passes through the shade 14, and is radiated to the illumination space.
Further, the illuminance sensor 63 detects the brightness of the illumination space in which the lighting fixture 10 is installed, and the lighting circuit 18 automatically adjusts the output of the LED element 35.

また、LED素子35が発生する熱は、基板12から器具本体11に熱伝導され、器具本体11から効率よく放熱される。一方、点灯回路18が発生する熱は、ケース16に伝わり、ケース16から効率よく放熱される。そのため、LED素子35が発生する熱と点灯回路18が発生する熱とが干渉し合うことが少なく、それぞれが発生する熱を効率よく放熱することができる。 Further, the heat generated by the LED element 35 is conducted from the substrate 12 to the instrument body 11 and is efficiently radiated from the instrument body 11. On the other hand, the heat generated by the lighting circuit 18 is transmitted to the case 16 and is efficiently radiated from the case 16. Therefore, the heat generated by the LED element 35 and the heat generated by the lighting circuit 18 rarely interfere with each other, and the heat generated by each of them can be efficiently radiated.

このように構成された照明器具10では、図1(a)に示すように、器具本体11の中央に対向するセード14の中央部分14aは、円周上の各LED素子35から突出部21の周辺部に接して延びる接線である仮想線48が器具本体11の中央側で交差する交点Pの位置より器具本体11側から離反する位置に配置されている。 In the luminaire 10 configured in this way, as shown in FIG. 1(a), the central portion 14a of the shade 14 facing the center of the luminaire body 11 has the protrusions 21 from the LED elements 35 on the circumference. An imaginary line 48, which is a tangent line extending in contact with the peripheral portion, is arranged at a position away from the instrument body 11 side from the position of the intersection P that intersects on the center side of the instrument body 11.

仮に、セード14の中央部分14aが交点Pの位置より器具本体11に近い位置にある場合、セード14の中央部分14aにLED素子35からの光が突出部21で遮れて出きる影が映り、セード14の中央部分14aが暗くなる。 If the central portion 14a of the shade 14 is located closer to the device body 11 than the position of the intersection P, a shadow of the light emitted from the LED element 35 being blocked by the protrusion 21 is reflected on the central portion 14a of the shade 14. , The central portion 14a of the shade 14 becomes dark.

セード14の中央部分14aが交点Pの位置より器具本体11側から離反する位置に配置されていることにより、セード14に影が映るのを防止でき、セード14全体の輝度を均一にできる。 By disposing the central portion 14a of the shade 14 at a position away from the device body 11 side from the position of the intersection P, it is possible to prevent a shadow from being cast on the shade 14 and to make the brightness of the entire shade 14 uniform.

また、図1(a)には、天井面とLED素子35との間の距離が広く、器具本体11の下面からの突出部21の突出量が小さい照明器具10を示したが、図1(b)には、天井面とLED素子35との間の距離が狭く、器具本体11の下面からの突出部21の突出量が大きい照明器具10を示す。図1(b)に示す照明器具10の場合にも、セード14の中央部分14aが交点Pの位置より器具本体11側から離反する位置に配置されていることにより、セード14に影が映るのを防止でき、セード14全体の輝度を均一にできる。 Further, FIG. 1(a) shows the lighting fixture 10 in which the distance between the ceiling surface and the LED element 35 is wide and the protrusion amount of the protrusion 21 from the lower surface of the fixture body 11 is small. In b), there is shown the lighting fixture 10 in which the distance between the ceiling surface and the LED element 35 is narrow and the protrusion amount of the protrusion 21 from the lower surface of the fixture body 11 is large. Also in the case of the lighting device 10 shown in FIG. 1(b), since the central portion 14a of the shade 14 is arranged at a position away from the fixture body 11 side from the position of the intersection P, a shadow is cast on the shade 14. Can be prevented, and the brightness of the entire shade 14 can be made uniform.

また、LED素子35が同心円上に複数列配列されている場合には、最内周列のLED素子35から突出部21の周辺部に接する仮想線48の交点Pを基準とすることにより、セード14に影が映るのを防止でき、セード14全体の輝度を均一にできる。 When the LED elements 35 are arranged in a plurality of concentric circles, the shade is set by using the intersection point P of the virtual line 48 that is in contact with the peripheral portion of the protruding portion 21 from the LED elements 35 in the innermost row as a reference. It is possible to prevent a shadow from being projected on 14, and to make the brightness of the entire shade 14 uniform.

また、配光制御体41は、基準軸43を中心として器具本体11の中央側方向と反対の外側方向とに軸対称の断面形状に形成されているとともに、基準軸43がLED素子35の発光部の中心35aより器具本体11の外側方向に位置されている。この配光制御体41による配光図を図4に示す。図4において、0°が直下方向、プラス角度側が器具本体11の中央側方向、マイナス角度側が器具本体11の外側方向である。 Further, the light distribution control body 41 is formed in a cross-sectional shape that is axially symmetric with respect to the central side direction of the instrument body 11 and the outer side direction opposite to the reference axis 43, and the reference axis 43 emits light from the LED element 35. It is located outward of the instrument body 11 from the center 35a of the section. A light distribution diagram by the light distribution control body 41 is shown in FIG. In FIG. 4, 0° is the direct downward direction, the positive angle side is the central side direction of the instrument body 11, and the negative angle side is the outward direction of the instrument body 11.

図4からわかるように、光度が、器具本体11の中央側方向の方が外側方向に比べて大きくなっている。これは、LED素子35の発光部が配光制御体41の内周側に近いために、配光制御体41の内周側から出射する光が外周側から出射する光より多くなるためである。器具本体11の中央に引掛シーリングへの取付構造を設けたり点灯回路18を収容する突出部21があるため、この突出部21の周囲に配置されるLED素子35からセード14の中央部分14aとの間の距離が離れてしまうが、このような配光特性を有することにより、セード14の中央部分14aを明るくし、セード14全体の輝度を均一にできる。 As can be seen from FIG. 4, the luminous intensity is higher in the central side direction of the instrument body 11 than in the outer side direction. This is because the light emitting portion of the LED element 35 is close to the inner peripheral side of the light distribution control body 41, so that the light emitted from the inner peripheral side of the light distribution control body 41 is larger than the light emitted from the outer peripheral side. .. Since there is a protrusion 21 for providing a mounting structure for a hook ceiling or for accommodating the lighting circuit 18 in the center of the device body 11, the LED element 35 arranged around the protrusion 21 and the central portion 14a of the shade 14 Although the distance between them becomes large, the central portion 14a of the shade 14 can be brightened and the brightness of the entire shade 14 can be made uniform by having such a light distribution characteristic.

なお、配光制御体41による器具本体11の中央側方向への配光のピークは、上述した交点Pに一致されている。そのため、セード14の中央部分14aを明るくでき、セード14全体の輝度を均一にできる。 In addition, the peak of the light distribution by the light distribution control body 41 toward the center side of the instrument body 11 coincides with the above-described intersection point P. Therefore, the central portion 14a of the shade 14 can be brightened, and the brightness of the entire shade 14 can be made uniform.

また、配光制御体41の基準軸43より外周側の入射面41aおよび出射面41bの少なくともいずれか一方には光拡散面が形成されているため、セード14の周辺部の輝度むらを低減し、セード14全体の輝度を均一にできる。 Further, since a light diffusing surface is formed on at least one of the entrance surface 41a and the exit surface 41b on the outer peripheral side of the reference axis 43 of the light distribution control body 41, the uneven brightness in the peripheral portion of the shade 14 is reduced. , The brightness of the entire shade 14 can be made uniform.

さらに、その光拡散面による拡散特性は、器具本体11の中央側方向から外側方向に向かうにしたがって徐々に拡散度が増すように形成されている。また、同心円上の複数列の配光制御体41のうち、内周側の配光制御体41より外周側の配光制御体41の方が、光拡散面の拡散度が大きくなるように形成されている。これにより、拡散特性の有無境界が目立たず、セード14全体の輝度を均一にできる。
なお、照明器具は、円形のシーリングライトに限らず、四角形や多角形の照明器具にも適用できる。
Further, the diffusing characteristics of the light diffusing surface are formed so that the diffusivity gradually increases from the central side direction of the instrument body 11 toward the outer side direction. Further, among the plurality of concentric circles of the light distribution control body 41, the light distribution control body 41 on the outer peripheral side is formed so that the diffusion degree of the light diffusing surface is larger than that of the light distribution control body 41 on the inner peripheral side. Has been done. As a result, the boundary of the presence or absence of the diffusion characteristic is inconspicuous and the brightness of the entire shade 14 can be made uniform.
The lighting fixture is not limited to a circular ceiling light, and can be applied to a square or polygonal lighting fixture.

本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the scope equivalent thereto.

10 照明器具
11 器具本体
12 発光モジュール基板
14 セード
14a 中央部分
21 突出部
25 開口部
27 爪挿通孔
34 嵌合孔
35 半導体発光素子としてのLED素子
35a 中心
41 配光制御体
43 基準軸
44 爪部
48 仮想線
P 交点
10 lighting equipment
11 Instrument body
12 Light emitting module board
14 Cade
14a central part
21 Projection
25 openings
27 Claw insertion hole
34 Mating hole
35 LED element as semiconductor light emitting element
35a center
41 Light distribution control body
43 Reference axis
44 Claw
48 Virtual line P intersection

Claims (1)

一面側に形成された環状の基板配置部における外周辺部から周方向で天井面方向へ向けて立ち上がる部分と、前記基板配置部の周辺部に形成されたフランジ部とにより、背面側へ突出する環状の凹部が形成されているとともに、前記基板配置部に複数の挿通孔が形成され、天井面に設置されている引掛シーリングに取り付けられる器具本体と;
前記環状の基板配置部に配設され、半導体発光素子を実装するとともに前記器具本体側に嵌合する複数の嵌合孔が形成された発光モジュール基板と;
前記半導体発光素子に対向するとともに前記発光モジュール基板を前面側から覆うよう配設され、前記基板配置部に形成された挿通孔に挿通可能な爪部が形成されているカバー部と;
前記器具本体の一面側を覆うセードと;
を具備ていることを特徴とする照明器具。
The annular substrate placement portion formed on the one surface side projects to the back side by a portion that rises from the outer peripheral portion toward the ceiling surface in the circumferential direction and the flange portion formed in the peripheral portion of the substrate placement portion. An instrument main body which is formed with an annular concave portion and has a plurality of insertion holes formed in the substrate placement portion and which is attached to a hook ceiling installed on a ceiling surface ;
A light emitting module substrate which is disposed in the annular substrate arranging portion, in which a semiconductor light emitting element is mounted, and a plurality of fitting holes which are fitted to the apparatus main body side are formed;
A cover portion that is arranged so as to face the semiconductor light emitting element and covers the light emitting module substrate from the front side, and has a claw portion that can be inserted into an insertion hole formed in the substrate arrangement portion ;
A shade covering one side of the device body;
Luminaire, characterized in that it comprises a.
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