LED LIGHTING FIXTURE

PROBLEM TO BE SOLVED: To properly arrange components of a power source portion.SOLUTION: An LED lighting fixture has a plate portion including a front surface and a rear surface and formed into the long rectangular shape in a plane view, an LED module disposed at a front surface side of the plate po...

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1. Verfasser: MUTO GEN
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To properly arrange components of a power source portion.SOLUTION: An LED lighting fixture has a plate portion including a front surface and a rear surface and formed into the long rectangular shape in a plane view, an LED module disposed at a front surface side of the plate portion, and a power source portion disposed at a rear surface side of the plate portion and supplying electric power to the LED module. The power source portion 20 includes an input portion Y receiving supply of AC power from the external, an output portion Z supplying electric power to the LED module, filter transformers FL1 and FL2 damping noise of AC power, and a capacitor C3 for smoothing electric power supplied to the LED module. The capacitor C3 is disposed on a position closer to the output portion Z with respect to the filter transformers FL1 and FL2, and a position closer to the input portion Y with respect to the coil X.SELECTED DRAWING: Figure 2A 【課題】電源部の構成要素を好適にレイアウトする。【解決手段】LED照明装置は、表面と裏面とを備えて平面視において長矩形状に形成されている板部と、前記板部の表面側に配置されているLEDモジュールと、前記板部の裏面側に配置されており前記LEDモジュールに電力供給を行う電源部と、を有する。電源部20は、外部から交流電力の供給を受ける入力部Yと、LEDモジュールに電力供給を行う出力部Zと、交流電力のノイズを減衰するフィルタトランスFL1及びFL2と、コイルXと、LEDモジュールに供給する電力を平滑化するキャパシタC3と、を含む。キャパシタC3は、フィルタトランスFL1及びFL2よりも出力部Zに近い位置に配置されているとともに、コイルXよりも入力部Yに近い位置に配置されている。【選択図】図2A