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    • 8. 发明申请
    • NOISE CONTROL STRATEGY FOR AN ELEVATOR SYSTEM
    • 电梯系统噪声控制策略
    • WO2007024223A1
    • 2007-03-01
    • PCT/US2005/030149
    • 2005-08-24
    • OTIS ELEVATOR COMPANYJAYACHANDRAN, Vijay
    • JAYACHANDRAN, Vijay
    • B66B7/00
    • B66B7/00B66B11/0005
    • A method of controlling noise noticeable within an elevator car (22) includes intentionally introducing noise into the elevator car (22) at a noise level that depends on the position of the car within a hoistway (24). A disclosed example includes using existing elevator system components for generating compensating noise at different levels corresponding to different positions of the car within the hoistway. One disclosed example includes increasing introduced noise as the car descends further away from a machine responsible for moving the car. The introduced noise reduces or eliminates changes in noticeable noise within the elevator car as the car moves relative to the machine. The disclosed examples have particular usefulness in machine roomless elevator systems although they are not necessarily limited to such systems.
    • 一种控制电梯轿厢(22)内的噪音的方法包括以噪声水平有意地将噪音引入电梯轿厢(22),噪音水平取决于轿厢在井道(24)内的位置。 所公开的示例包括使用现有的电梯系统部件来产生对应于轿厢在井道内的不同位置的不同等级的补偿噪声。 一个公开的示例包括当汽车从负责移动汽车的机器更远的地方下降时增加引入的噪声。 当汽车相对于机器移动时,引入的噪声降低或消除电梯轿厢内的显着噪声的变化。 所公开的示例在无机房电梯系统中具有特别的用途,尽管它们不一定限于这种系统。
    • 9. 发明申请
    • ELEVATOR CEILING VENTILATION CAVITY
    • 电梯天花板通风腔
    • WO2006011914A2
    • 2006-02-02
    • PCT/US2005/006615
    • 2005-03-02
    • OTIS ELEVATOR COMPANYOPOKU, DanielBONILHA, Murilo W.LI, WenlongALVES, GoldinoJAYACHANDRAN, Vijay
    • OPOKU, DanielBONILHA, Murilo W.LI, WenlongALVES, GoldinoJAYACHANDRAN, Vijay
    • B66B11/02
    • B66B11/024Y10T29/49826
    • 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.
    • 电梯轿厢天花板包括上部天花板面板和下部天花板面板,所述上部天花板面板和下部天花板面板彼此垂直地间隔开,并且在它们之间具有中间天花板腔体。 入口导管与上部天花板面板相关联,并且出口导管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。 通过中间天花板空腔的入口和出口管道的这种分离减少了通过通风路径进入电梯轿厢的空气传播噪音。 在一个示例中,至少一个挡板安装在入口和出口管道之间的中间天花板腔体内,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音。