LIGHTING DEVICE

• Main Authors: ISHII SHINJI, TANGE MASAKAZU, KAWASAKI YOSHIAKI, MORI AZUMI
• Format: Patent
• Language: English; Japanese
• Published: 24.01.2019
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

To provide a lighting device which enables reduction of a cost and weight of a heat radiation part while maintaining heat radiation performance.SOLUTION: A lighting device 1a includes: a rechargeable battery 11; a power source part 4 which charges the rechargeable battery 11; a body 2 to which the power source part 4 is attached; a light source unit 50a having a light source substrate; and a frame 14 covering the lower surface side of the light source unit 50a. The light source unit 50a has a heat sink 7a which has a light source housing part 74 being a recess for housing the light source substrate and with which a bottom surface part of the light source housing part 74 and a substrate rear surface of the light source substrate contact. Further, the light source unit 50a includes a holder 9 which is housed in the light source housing part 74 while pressing the substrate rear surface of the light source substrate to the heat sink 7a. The heat sink 7a includes a heat radiation part 72a which contacts with the frame 14 at a periphery of the light source housing part 74.SELECTED DRAWING: Figure 17 【課題】放熱性を保ちつつ、放熱部のコストおよび重量を低減させることを目的とする。【解決手段】照明器具１ａは、蓄電池１１と、蓄電池１１を充電する電源部４と、電源部４を取り付ける本体２と、光源基板を有する光源ユニット５０ａと、光源ユニット５０ａの下面側を覆う枠１４とを備える。光源ユニット５０ａは、光源基板を収容する凹みである光源収容部７４を有し、光源収容部７４の底面部と光源基板の基板裏面が接する放熱板７ａを有する。また、光源ユニット５０ａは、光源基板の基板裏面を放熱板７ａに押し付けた状態で光源収容部７４に収容されているホルダ９を備える。放熱板７ａは、光源収容部７４の周囲において枠１４に接している放熱部７２ａを備える。【選択図】図１７