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    • 5. 发明授权
    • Linear actuator
    • 线性执行机构
    • US08378610B2
    • 2013-02-19
    • US12662709
    • 2010-04-29
    • Svend Erik Knudsen Jensen
    • Svend Erik Knudsen Jensen
    • H02P1/04
    • F16H25/2015F16H2025/2084
    • A linear actuator includes a housing with a reversible DC-motor, which through a transmission can displace an activation element between two end positions, where an further switch located in the longitudinal direction of the spindle is activated and deactivated when a spindle nut passes during its travel on the spindle and provides information for a calculation model which continuously calculates the position of the spindle nut on the spindle so that the calculation model in the positions where the further switch is activated by the spindle nut is calibrated to show an absolute position which is entered as a reference point in the control.
    • 线性致动器包括具有可逆直流电动机的壳体,其通过变速器可以在两个端部位置之间移动致动元件,其中位于主轴纵向方向上的另一个开关被激活,并且当主轴螺母在其中 在主轴上行进,并提供连续计算主轴螺母在主轴上的位置的计算模型的信息,以便通过主轴螺母激活进一步开关的位置中的计算模型被校准,以显示绝对位置 作为控制参考点输入。
    • 6. 发明授权
    • Actuator system
    • 执行器系统
    • US08302227B2
    • 2012-11-06
    • US12448602
    • 2007-12-20
    • Svend Erik Knudsen Jensen
    • Svend Erik Knudsen Jensen
    • F16H3/06A61G7/05
    • F16H57/01A47C20/041A61G7/018F16H25/20F16H2057/012Y10T74/18576
    • Today, electromechanical actuator systems are used in a variety of applications, of which some are more safety critical than others. Likewise, they are used in a wide range of applications where the safety of persons often to a higher or lesser extent depends on that the actuators remains safe both during normal use and in the fault conditions, which may occur. By an actuator comprising a DC motor (2) equipped with a worm drive and a spindle (4), the typical wearing components are the bearing, which carries the spindle (4), the spindle nut (5) and the worm wheel (9) in the worm drive. Common to the described defect situations is that they in the time leading up to the occurrence of the defect will show a decrease in the ratio of efficiency. Whether it is the spindle bearing, the worm drive, the spindle nut (5) or for that matter the motor, which is getting worn, the proportion between the current which the motor absorbs and the force the actuator performs will change. The purpose of the present invention is thus to monitor the ratio of efficiency of the actuator. When this begins to change, becomes worse, it is time to replace the actuator before it becomes defective. For this purpose a load cell can for instance be incorporated in the actuator, for measuring the force on the rear mounting. This force is compared with the power consumption and an indicator for the ratio of efficiency can thus be calculated as force/current.
    • 今天,机电致动器系统用于各种应用中,其中一些比其他应用更安全。 同样地,它们用于广泛的应用中,其中人的安全性通常在较高或较小程度上取决于致动器在正常使用期间和在可能发生的故障条件下都是安全的。 通过包括配备有蜗杆传动装置的直流电机(2)和主轴(4)的致动器,典型的磨损部件是承载主轴(4),主轴螺母(5)和蜗轮(9)的轴承 )在蜗杆传动。 所描述的缺陷情况的共同之处在于它们在导致缺陷发生的时间内将显示效率比的降低。 无论是主轴轴承,蜗杆传动,主轴螺母(5),或者电机吸收的电动机与电动机吸收的电流和执行机构的作用力之间的比例会发生变化。 因此,本发明的目的是监视致动器的效率的比率。 当这开始变化时,变得更糟,现在是在执行器发生故障之前更换执行器的时候了。 为此,称重传感器可以例如被并入致动器中,用于测量后部安装件上的力。 该力与功耗进行比较,因此效率比的指标可以作为力/电流计算。
    • 7. 发明授权
    • Communications method, in particular for hospital and nursing beds
    • 通讯方式,特别是医院和护理床
    • US08078780B2
    • 2011-12-13
    • US11886337
    • 2006-11-15
    • Svend Erik Knudsen Jensen
    • Svend Erik Knudsen Jensen
    • G06F13/42
    • H04L12/40006G16H40/20H04L12/403H04L2012/4026
    • The invention relates to a communications method of communicating states from an activation unit to a receiver via a communications bus, wherein the state may be activation/deactivation of an activation unit, and wherein the state is communicated to the receiver via a serial data stream timed by a clock signal, said data stream transmitting data packets which comprise an identification part and a data pare wherein: ● the identification part comprises a plurality of bits which identify which activation units the data packet concerns, and ● the data part comprises a plurality of bits which individually identify the state of an activation unit. The invention also relates to a system based on the communications method and comprising an activation unit and a receiver. In addition, the invention relates to an activation unit and a receiver.
    • 本发明涉及通过通信总线将状态从激活单元传送到接收器的通信方法,其中该状态可以是激活单元的激活/去激活,并且其中该状态经由串行数据流被定时传送给接收器 通过时钟信号,所述数据流发送包括识别部分和数据细分的数据分组,其中:●识别部分包括识别数据分组涉及哪些激活单元的多个比特,以及●数据部分包括多个 单独识别激活单元的状态的位。 本发明还涉及基于通信方法并包括激活单元和接收器的系统。 此外,本发明涉及激活单元和接收器。
    • 10. 发明授权
    • Actuator
    • 执行器
    • US08193755B2
    • 2012-06-05
    • US12308113
    • 2007-06-13
    • Svend Erik Knudsen JensenJohn Abrahamsen
    • Svend Erik Knudsen JensenJohn Abrahamsen
    • F16H25/24F16H27/02H02P3/00
    • H02K7/102H02K7/06H02P3/12Y10T74/18024Y10T74/18576Y10T74/18704
    • An actuator comprising a reversible electric motor, which over a gearing, drives an activation element which can move back and forth. The activation element is of the non-self-locking type. Furthermore the motor and gearing are of a non self locking type. A brake holds the activation element in any position, when the electric motor is inactive, said brake can be released by means of a release mechanism. The motor is used as generator when the brake is released and the generator voltage from it is used to adjust the velocity of the activation element. Thus, a quick release is provided, where the activation element can be disengaged and adjusted evading gear and motor, and where the movement of the activation element, during the disengagement, occurs with a controlled velocity.
    • 包括可逆电动机的致动器,该可逆电动机在齿轮上方驱动可以前后移动的致动元件。 激活元件是非自锁型的。 此外,电机和齿轮是非自锁式的。 制动器将启动元件保持在任何位置,当电动机无效时,所述制动器可通过释放机构释放。 当制动器被释放时,电动机用作发电机,并且使用其来自发电机的电压来调节激活元件的速度。 因此,提供快速释放,其中启动元件可以被分离和调整以逃避齿轮和马达,并且其中激活元件在分离期间的移动以受控的速度发生。