公开(公告)号：US08500525B2

公开(公告)日：2013-08-06

申请号：US11631136

申请日：2005-02-03

申请人： Daniel G. Opoku ,  Murllo W. Bonilha ,  Wenlong Li ,  Goldino Alves ,  Vijay Jayachandran

发明人： Daniel G. Opoku ,  Murllo W. Bonilha ,  Wenlong Li ,  Goldino Alves ,  Vijay Jayachandran

IPC分类号： B66B11/024 ,  G10K11/161 ,  F24K2013/245

CPC分类号： B66B11/024 ,  Y10T29/49826

摘要： An elevator cab ceiling includes an upper ceiling panel and a lower ceiling panel that are vertically spaced apart from each other with an intermediate ceiling cavity between them. An inlet duct is associated with the upper ceiling panel and an outlet duct is associated with the lower ceiling panel. The inlet and outlet ducts are horizontally spaced apart from each other and are fluidly connected to each other through the intermediate ceiling cavity to form a ventilation path. This separation of inlet and outlet ducts by an intermediate ceiling cavity reduces airborne noise transmissions that enter an elevator cab through the ventilation path. In one example, at least one baffle is installed within the intermediate ceiling cavity between the inlet and outlet ducts to interrupt a flow between the inlet and outlet to further reduce any transmitted noise.

摘要翻译： 电梯驾驶室天花板包括彼此垂直间隔开的上顶板和下天花板板，在它们之间具有中间天花板空腔。 入口管道与上部天花板面板相关联，出口管道与下部天花板面板相关联。 入口和出口管道彼此水平间隔开并且通过中间天花板腔体彼此流体连接以形成通风路径。 入口和出口通过中间天花板腔分离可以减少通过通风路径进入电梯轿厢的空中噪声传输。 在一个示例中，至少一个挡板安装在入口和出口管之间的中间天花板腔内，以中断入口和出口之间的流动，以进一步减少任何传输的噪声。