| 摘要 |
This invention relates to a concealed box, which acts as a receptacle for ceiling light parts, which consists of a round chamber and an integrated parallelogram chamber with a special lid. All light parts (choke coil, lamp-holder, starter, etc.) are placed inside the integrated parallelogram chamber. When the new concealed box is being installed in the wooden construction frames for buildings the parallelogram chamber is covered with concrete and when these frames are removed only the round chamber is visible thus ensuring that the light fitting is attractive to the eye and providing a cost effective solution since the need of construct a suspended ceiling is done away with and long-life bulbs can be fitted. The light parts (lamp-holder, starter, choke coil, etc.) are placed inside the parallelogram chamber separate from the lamp with the result that they are not affected at all by the temperature and radiation emitted by the lamp and the fact that the parallelogram chamber is covered by concrete. The advantage of this invention is that thanks to this invention the light parts are not affected by the temperature and radiation emitted by the lamp and consequently no problems with those parts arise. Another advantage of this invention is that the need of construct a suspended ceiling is done away with since the box is easily installed in the concrete and once the frames are removed only the round chamber remains visible while the parallelogram chamber remains invisible inside the concrete. This invention also ensures cost savings since long-life bulbs can be fitted.<IMAGE> |
