PANEL LIGHT APPARATUS

• Main Authors: Liu, Guanyinlian, Gong, Guangquan, Zhang, Jiansheng
• Format: Patent
• Language: English; French; German
• Published: 18.03.2020
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; 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

A panel light apparatus includes a heat sink frame (11; 41; 972; 9831; 672; 752; 759; 995), a first LED light bar (31; 32), an optical guiding module (13; 71) and a back cover (28; 831; 911; 975; 781; 653) (28; 831; 911; 975; 781; 653). The first LED light bar (31; 32) has a first plugging structure (312; 313; 314; 315) to be plugged to a second plugging structure of the heat sink frame (11; 41; 972; 9831; 672; 752; 759; 995). Heat of the LED light bar(511; 512) is transmitted to the heat sink frame (11; 41; 972; 9831; 672; 752; 759; 995). The optical guiding module (13; 71) includes a light diffusion layer (231; 714; 632; 864; 872; 902; 881; 917; 892; 891; 944; 9742; 774) and a light guiding layer (232; 713; 63; 863; 871; 901; 916; 891; 943; 9741; 773). A lateral side of the light guiding layer (232; 713; 63; 863; 871; 901; 916; 891; 943; 9741; 773) faces to LED modules (945; 9511; 9512; 996) of the first LED light bar (31; 32) for guiding light of the LED modules (945; 9511; 9512; 996) to the diffusion layer. The light guiding layer (232; 713; 63; 863; 871; 901; 916; 891; 943; 9741; 773) and the light diffusion layer (231; 714; 632; 864; 872; 902; 881; 917; 892; 891; 944; 9742; 774) are fixed together as an assembly module before being placed in the surrounding border.