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    MOTOR DRIVE COVER
    51.
    发明申请
    MOTOR DRIVE COVER 审中-公开
    电机驱动盖

    公开(公告)号：US20160172926A1

    公开(公告)日：2016-06-16

    申请号：US14907912

    申请日：2014-06-12

    Applicant: DANFOSS POWER ELECTRONICS A/S

    Inventor： George Miller ,  Ryan Drabek ,  Lester Grzesik ,  Matthew Gray ,  Frank-Erik Johansen ,  Eric Von Stoutenborough

    IPC: H02K5/20 ,  H02K9/02 ,  H02K5/10

    CPC classification number: H02K5/20 ,  H02K5/10 ,  H02K9/02 ,  H02K2205/09

    Abstract: A cover for a motor drive is provided. The cover includes an opening (often at the bottom of the cover) to allow air to pass to an air inlet of the motor drive and an opening (often near the top of the cover) to allow air from an air outlet of the motor drive to exit the cover. A hood provides rain protection for the drive and a separator (such as a baffle) within the enclosure prevents air flowing within the enclosure from the air outlet to the air inlet of the drive. The hood and/or the separator are shaped to direct air from the air outlet away from the enclosure in order to substantially reduce the re-circulation of air from the air outlet to the air inlet of the drive.

    Abstract translation: 提供电机驱动盖。 盖子包括开口（通常在盖的底部），以允许空气传递到马达驱动器的空气入口和开口（通常靠近盖的顶部），以允许来自马达驱动器的空气出口的空气 退出封面。 防护罩为驱动器提供防雨保护，并且外壳内的隔板（例如挡板）可防止外壳内的空气从出风口流到驱动器的进气口。 罩和/或隔板被成形为将空气从空气出口引导离开外壳，以便基本上减少空气从空气出口到驱动器的空气入口的再循环。

    AUTOMATED MOTOR ADAPTATION
    52.
    发明申请
    AUTOMATED MOTOR ADAPTATION 审中-公开
    自动电机适配

    公开(公告)号：US20160169974A1

    公开(公告)日：2016-06-16

    申请号：US14908170

    申请日：2014-07-09

    Applicant: DANFOSS POWER ELECTRONICS A/S

    Inventor： Mark A. Bertolasi ,  Michael Harke ,  Charles J. Romenesko ,  Shaohua Suo

    IPC: G01R31/34

    CPC classification number: G01R31/34

    Abstract: A method of determining electromagnetic characteristics of an asynchronous motor system is described. A motor system model is presented including a stator resistance, a transient inductance, a magnetizing inductance and a rotor resistance. A DC sequence is used to determine the stator resistance, a voltage pulse is used to determine the transient inductance, a binary injection frequency search algorithm is used to determine the magnetizing inductance, and an AC sine wave at slip frequency with DC offset is used to determine the rotor resistance.

    Abstract translation: 描述了一种确定异步电动机系统的电磁特性的方法。 提出了一种电机系统模型，包括定子电阻，瞬变电感，励磁电感和转子电阻。 使用DC序列来确定定子电阻，使用电压脉冲来确定瞬态电感，使用二进制注入频率搜索算法来确定励磁电感，并且使用具有直流偏移的滑差频率处的交流正弦波 确定转子电阻。

    Priming Protection
    53.
    发明申请
    Priming Protection 审中-公开
    起动保护

    公开(公告)号：US20160061204A1

    公开(公告)日：2016-03-03

    申请号：US14877817

    申请日：2015-10-07

    Applicant: Pentair Water Pool and Spa, Inc. ,  Danfoss Power Electronics A/S

    Inventor： Robert W. Stiles, JR. ,  Lars Hoffmann Berthelsen ,  Gert Kjaer ,  Florin Lungeanu

    IPC: F04D15/00 ,  F04D13/06 ,  F04D1/00

    Abstract: Embodiments of the invention provide a pumping system for at least one aquatic application. The pumping system includes a pump, a motor coupled to the pump, and a controller in communication with the motor. The controller receives input of a performance value that is determined utilizing information from operation of the motor and compares the performance value to a reference value. The controller also is configured to prime and run the pump when the performance value equals the first reference value and to continue to do so until the performance value equals a second reference value. Alternatively, the controller receives user input of an amount of time the system can take to attempt to successfully prime the pump and is configured to operate the motor at maximum speed until the amount of time elapses.

    Abstract translation: 本发明的实施例提供了一种用于至少一个水生应用的泵送系统。 泵送系统包括泵，耦合到泵的马达以及与马达连通的控制器。 控制器接收使用来自电动机的操作的信息确定的性能值的输入，并将性能值与参考值进行比较。 当性能值等于第一参考值时，控制器还被配置为引导和运行泵，并继续执行，直到性能值等于第二参考值。 或者，控制器接收用户输入一段时间，系统可以尝试成功地填充泵，并且被配置为以最大速度操作电动机，直到经过一段时间。

    BUSBAR TERMINAL SLIDER ASSEMBLY
    56.
    发明申请
    BUSBAR TERMINAL SLIDER ASSEMBLY 有权

    公开(公告)号：US20250079728A1

    公开(公告)日：2025-03-06

    申请号：US18823856

    申请日：2024-09-04

    Applicant: Danfoss Power Electronics A/S

    Inventor： Nazeer Azam ,  Sakthi Manimaran ,  Jens Henrik Krog

    IPC: H01R9/26 ,  H01R9/24

    Abstract: A busbar terminal slider assembly for connecting a cable to a power converter includes a slider screw assembly with at least one connection portion, the connection portion includes a terminal slidable along a slider, a busbar with a mounting hole portion and a screw for pressing the cable against the busbar, wherein the screw and the busbar are at least partially arranged within the terminal. The disclosure further discloses a power converter including at least one busbar terminal slider and a method for connecting a cable to a busbar terminal slider assembly, the method includes the steps of inserting a cable into the terminal; sliding the terminal along the cable; and screwing the screw into the terminal and against the cable.

    Frequency converter
    59.
    外观设计
    Frequency converter 有权

    公开(公告)号：USD1040757S1

    公开(公告)日：2024-09-03

    申请号：US29782535

    申请日：2021-05-07

    Applicant: Danfoss Power Electronics A/S

    Designer： Sami Huhtakallio ,  Lasse Aro ,  Tuomas Laasanen

    Abstract: FIG. 1 is a rear view of a frequency converter comprising a new, original and ornamental design;
    FIG. 2 is a bottom view thereof;
    FIG. 3 is a front view thereof;
    FIG. 4 is a front, left side and top perspective view thereof;
    FIG. 5 is a left side view thereof;
    FIG. 6 is a right side view thereof;
    FIG. 7 is a top view thereof;
    FIG. 8 is a rear view of frequency converter with internal components;
    FIG. 9 is a bottom view thereof;
    FIG. 10 is a front view thereof;
    FIG. 11 is a front, left side and top perspective view thereof;
    FIG. 12 is a left side view thereof;
    FIG. 13 is a right side view thereof;
    FIG. 14 is a top view thereof;
    FIG. 15 is a rear view of frequency converter in accordance with another embodiment;
    FIG. 16 is a bottom view thereof;
    FIG. 17 is a front view thereof;
    FIG. 18 is a front, left side and top perspective view thereof;
    FIG. 19 is a left side view thereof;
    FIG. 20 is a right side view thereof;
    FIG. 21 is a top view thereof;
    FIG. 22 is a rear view of frequency converter of FIG. 15 shown with internal components;
    FIG. 23 is a bottom view thereof;
    FIG. 24 is a front view thereof;
    FIG. 25 is a front, left side and top perspective view thereof;
    FIG. 26 is a left side view thereof;
    FIG. 27 is a right side view thereof; and,
    FIG. 28 is a top view thereof.

    METHOD FOR PROVIDING THERMAL PROTECTION TO A PRE-CHARGE UNIT AND ELECTRIC POWER CONVERSION SYSTEM FOR EXECUTING THE METHOD
    60.
    发明公开
    METHOD FOR PROVIDING THERMAL PROTECTION TO A PRE-CHARGE UNIT AND ELECTRIC POWER CONVERSION SYSTEM FOR EXECUTING THE METHOD 审中-公开

    公开(公告)号：US20240250517A1

    公开(公告)日：2024-07-25

    申请号：US18416451

    申请日：2024-01-18

    Applicant: Danfoss Power Electronics A/S

    Inventor： Zhi Gao ,  Stefan Schroeder ,  Markus Sjoblom ,  Kenneth Dean

    IPC: H02H5/04 ,  H02M7/00 ,  H02M7/537

    CPC classification number: H02H5/047 ,  H02M7/537 ,  H02M7/003

    Abstract: A method for providing thermal protection to a pre-charge unit (PRC) of an electric power conversion system, such as a medium-voltage adjustable-speed drive, with a step-up transformer and a DC link includes the steps of executing a parameter identification block identifying the electrical and thermal parameters of the PRC; of an electric power conversion system executing a current estimation block estimating the current flowing though the PRC's step-up transformer based on a voltage input; executing a thermal level estimation block estimating a thermal level at the PRC's step-up transformer based on the estimated current flowing though the PRC's step-up transformer; executing a protection logic block comparing the estimated thermal level to a pre-determined trip threshold to determine whether a thermal overload has occurred; and outputting a trip signal if the trip threshold has been exceeded. The disclosure further discloses an electric power conversion system, such as a medium-voltage adjustable-speed drive, with a step-up transformer and a DC link for executing a corresponding method.

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