| 摘要 |
As a part of a ventilating or air conditioning system a plurality of parallel hollow carrier sections are arranged in spaced relation under a ceiling slab. Said hollow carrier sections are provided with upper and lower support means facing towards the space between said carrier sections. At least some of said upper means support carrier plates provided with lighting fixtures on the underside thereof. At least some of said lower means support transparent or translucent optical panels provided under and spaced from said carrier plates. Other of said lower means support acoustic panels, cover plates or the like. Air flow connection from the underlying room to the space between the carrier plates and the optical panels is ensured. The walls of the parallel hollow sections are provided with apertures being in air flow connection with the spaces between the carrier plates and the optical plates to cause the air flow from the underlying room when the ventilating system is in operation to ventilate the lighting fixtures on its way to the interior of the hollow section. The air flow stream may be reversed. |
