Lift system
    4.
    发明公开
    Lift system 有权
    Hebesystem

    公开(公告)号:EP2248756A1

    公开(公告)日:2010-11-10

    申请号:EP10175870.4

    申请日:2007-04-30

    IPC分类号: B66D1/74 A63J1/02

    CPC分类号: B66D1/741 A63J1/028

    摘要: A lift assembly system (10) and method can include a substantially rectangular tube (11), a motor (28) operably connected to first (26) and second (27) traction drives and a rotatable drum (25) and structurally connected to one end of the tube, a head block (39) fixed to the opposite end of the tube, and a plurality of loft blocks (32) positionable at an infinite number of locations within the tube. An elongate member (31) attached on one end to the drum can be routed through a generally horizontal path from the drum to the first and second traction drives, the head block, and the loft blocks, and then through a generally vertical path from the loft block to an attached article. The elongate member can be wound about the drum to raise the article, and unwound from the drum to lower the article. The system can further include a load-side braking mechanism (36). The tube can include a compressible material adapted to absorb at least a portion of a horizontal load placed on the lift system.

    摘要翻译: 提升组件系统(10)和方法可以包括基本上矩形的管(11),可操作地连接到第一(26)和第二牵引驱动器(27)的马达(28)和可旋转滚筒(25),并且结构上连接到一个 管头的端部,固定到管的相对端的头块(39)和可定位在管内无数个位置的多个倾倒块(32)。 将一端附接到滚筒上的细长构件(31)可以通过从滚筒到第一和第二牵引驱动器,头部块和放样块的大致水平的路径,然后穿过从 阁楼封锁到附件。 细长构件可以卷绕在滚筒上以升高物品,并从滚筒解卷以使物品下降。 该系统还可以包括负载侧制动机构(36)。 管可以包括适于吸收放置在电梯系统上的水平负载的至少一部分的可压缩材料。

    PWM switching power supply control methods
    5.
    发明公开
    PWM switching power supply control methods 审中-公开
    用于脉冲宽度调制的开关电源的控制方法

    公开(公告)号:EP1727267A3

    公开(公告)日:2010-04-07

    申请号:EP06270015.8

    申请日:2006-02-10

    IPC分类号: H02M5/293

    摘要: The solid state switching section of a high frequency PWM switching power supply (20) may encounter problems in accurately regulating output power when the requested output power is above a threshold level, the threshold level typically being a high level approaching one hundred percent of the power of the sinusoidal AC power source (22). Below the threshold level, the power supply is operated in a full PWM mode to regulate the output power level. Above the threshold level, the power supply is operated in a full on, continuously conducting mode in a central part of the half cycles of the AC supply. Outside of this central portion, the power supply is operated in the PWM mode, using a duty cycle within the capability of the solid state switching section (26). The output power level is regulated by varying the duration of the central full on portion of the half cycle. A similar control method is used for reducing heat generated by the solid state switching section of the power supply.

    LIFT ASSEMBLY, SYSTEM, AND METHOD
    6.
    发明公开
    LIFT ASSEMBLY, SYSTEM, AND METHOD 审中-公开
    升降系统

    公开(公告)号:EP2013133A1

    公开(公告)日:2009-01-14

    申请号:EP07776449.6

    申请日:2007-04-30

    IPC分类号: B66D1/74 A63J1/02

    CPC分类号: B66D1/741 A63J1/028

    摘要: A lift assembly system (10) and method can include a substantially rectangular tube(ll), a motor(28) operably connected to first (26) and second(27) traction drives and a rotatable drum (25) and structurally connected to one end of the tube, a head block (39) fixed to the opposite end of the tube, and a plurality of loft blocks (32) positionable at an infinite number of locations within the tube. An elongate member (31) attached on one end to the drum can be routed through a generally horizontal path from the drum to the first and second traction drives, the head block, and the loft blocks, and then through a generally vertical path from the loft block to an attached article. The elongate member can be wound about the drum to raise the article, and unwound from the drum to lower the article. The system can further include a load-side braking mechanism (36). The tube can include a compressible material adapted to absorb at least a portion of a horizontal load placed on the lift system.

    SINEWAVE DIMMER CONTROL METHOD
    7.
    发明公开
    SINEWAVE DIMMER CONTROL METHOD 审中-公开
    正弦波调光控制方法

    公开(公告)号:EP1803332A1

    公开(公告)日:2007-07-04

    申请号:EP05796350.6

    申请日:2005-09-15

    IPC分类号: H05B37/02 H05B41/16

    摘要: An input line filter (28) separates an ac sinusoidal power source (22) from a power switching stage (26) having a series switching section (44) and a clamp switching section (46). Both the series switching section (44) and the clamp switching section (46) include complementary pairs (68-70 and 86-88) of high power and high speed MOSFETs. The series switching section (44) is connected in series between the input line filter (28) and the inductor (42) of an output load filter (38) between the power switching stage (26) and a load (24). The clamp switching section (46) is connected to shunt the inductor (42) and load (24). Synchronous operation is achieved by alternately operating the series (44) and clamp (46) switching sections to conductive conditions at a high pulse width modulation frequency. The duty cycle is selected to provide a sinusoidal output waveform with a desired amplitude. A microprocessor based programmable controller (56) provides control signals (102, 106) for alternate conduction of the series (44) and clamp (46) switching sections. A dead time interval (110, 112) stored in memory in the controller (56) separates the control signals (102, 106) for reliable and efficient operation. The dead time interval (110, 112) may be constant, or may be varied in accordance with load power variations.

    摘要翻译: 输入线路滤波器(28)将交流正弦电源(22)与具有串联开关部分(44)和钳位开关部分(46)的功率开关级(26)分开。 串联开关部分(44)和钳位开关部分(46)都包括高功率和高速MOSFET的互补对(68-70和86-88)。 串联开关部分(44)串联连接在功率开关级(26)和负载(24)之间的输出负载滤波器(38)的输入线路滤波器(28)和电感器(42)之间。 钳位开关部分(46)被连接以分流电感器(42)和负载(24)。 通过以高脉冲宽度调制频率交替地操作串联(44)和钳位(46)开关部分至导电条件来实现同步操作。 选择占空比以提供具有期望幅度的正弦输出波形。 基于微处理器的可编程控制器(56)提供控制信号(102,106),用于交替导通串联(44)和钳位(46)开关部分。 存储在控制器(56)的存储器中的空载时间间隔(110,112)分离控制信号(102,106)以实现可靠且高效的操作。 死时间间隔(110,112)可以是恒定的,或者可以根据负载功率变化而变化。

    Lift assembly systems and methods
    10.
    发明公开
    Lift assembly systems and methods 有权
    Systeme und VerfahrenfürHebemechanismen

    公开(公告)号:EP2910514A1

    公开(公告)日:2015-08-26

    申请号:EP15158343.2

    申请日:2010-11-18

    摘要: The invention relates to a lift assembly (10) comprising: an article (42) to be lifted between a lowered position and a raised position; a flexible drive element (38) coupled to the article (42) and defining a longitudinal axis; a power mechanism coupled to the drive element (38); and a load cell assembly (562) positioned in contact with the drive element, the load cell assembly (562) comprising; a load cell housing (566); a first load cell member (570) contacting the drive element and movable relative to the load cell housing (566); a second load cell member (570) contacting the drive element at a position spaced from the first load cell member (570); and a load cell sensor coupled to the first load cell member (570) and operative to provide an output corresponding with a load on the drive element (38).

    摘要翻译: 本发明涉及一种提升组件(10),包括:在降低位置和升高位置之间提升的物品(42); 耦合到所述制品(42)并限定纵向轴线的柔性驱动元件(38); 耦合到所述驱动元件(38)的动力机构; 以及与所述驱动元件接触定位的称重传感器组件(562),所述称重传感器组件(562)包括: 称重传感器壳体(566); 接触所述驱动元件并相对于所述称重传感器壳体(566)可移动的第一称重传感元件(570); 在与所述第一测力传感元件间隔开的位置处接触所述驱动元件的第二测力传感元件; 以及耦合到所述第一测力传感器构件(570)并且可操作地提供与所述驱动元件(38)上的负载相对应的输出的称重传感器传感器。