To use high speed downward flow of a rotor for forced cooling of LEDs to efficiently cool the LEDs with a radiator which achieves downsizing and weight saving and light a location requiring lighting by a drone having a light payload for a long time.SOLUTION: In a lighting device, an illuminator 2 which uses LEDs 7 as a light source 3 is disposed below a drone body 1. Further, heat radiation fins 41 of a radiator 4 thermally coupled to the LEDs 7 are disposed in a downward flow area 8 of a rotor 11 to use downward flow of the rotor 11 for a ventilation mechanism of the LEDs 7 and thereby efficiently cool the LEDs 7.SELECTED DRAWING: Figure 2
【課題】ローターの高速下降流をLEDの強制冷却に併用して小型で軽量化された放熱器でLEDを効率よく冷却して、ペイロードの軽いドローンで必要な場所を長時間明るく照射する。【解決手段】照明装置は、ドローン本体1の下方に、光源3をLED7とする照明器2を配置して、LED7に熱結合している放熱器4の放熱フィン41をローター11の下降流領域8に配置して、ローター11の下降流をLED7の送風機構に併用してLED7を効率よく冷却する。【選択図】図2
LIGHTING DEVICE
照明装置
2019-03-07
Patent
Electronic Resource
Japanese
IPC: | F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / A63H Spielzeuge, z.B. Kreisel, Puppen, Reifen, Baukästen , TOYS, e.g. TOPS, DOLLS, HOOPS, BUILDING BLOCKS / B64C AEROPLANES , Flugzeuge / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / H05B ELECTRIC HEATING , Elektrische Heizung |
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