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    SELF-LOCKING AND FOLDABLE EJECTOR ARM
    66.
    发明申请
    SELF-LOCKING AND FOLDABLE EJECTOR ARM 有权

    公开(公告)号：US20210282291A1

    公开(公告)日：2021-09-09

    申请号：US16808555

    申请日：2020-03-04

    Applicant: Cisco Technology, Inc.

    Inventor： Li Xiaogang ,  Robert Gregory Twiss ,  Luyao Wang

    IPC: H05K7/14 ,  E05B13/00 ,  E05C3/06

    Abstract: A locking mechanism for securing a computing device in an enclosure includes a jaw, a transmission lever, and an arm. The jaw is configured to abut a portion of the enclosure for holding the computing device. The transmission lever includes an arm pivot at one end and an actuating pivot at the opposite end. The arm is configured to rotate open and closed about the arm pivot and be selectively decoupled from the transmission lever. When the arm is coupled to the transmission lever, opening the arm causes the transmission lever to rotate open about the actuating pivot. Rotating open the transmission lever about the actuating pivot releases the jaw from the portion of the enclosure, and allows the computing device to be removed from the enclosure.

    HIGH IMPACT RESISTANT HEAT SINK
    68.
    发明申请
    HIGH IMPACT RESISTANT HEAT SINK 审中-公开

    公开(公告)号：US20200328136A1

    公开(公告)日：2020-10-15

    申请号：US16913663

    申请日：2020-06-26

    Applicant: Cisco Technology, Inc.

    Inventor： Vic Chia ,  Hong Huynh ,  Steven A. Hanssen ,  Robert Gregory Twiss

    IPC: H01L23/40 ,  F16B5/02

    Abstract: A heat sink mounting configuration is provided that is configured to prevent the heat sink from damaging ball grid arrays (BGA) of an application specific integrated circuit (ASIC) mounted on a printed circuit board (PCB) when the line card is subjected to vibrations and shocks. The heat sink mounting configuration may include a set of screws configured to be at least partially disposed within the apertures of the heat sink to secure the heat sink to the PCB. The mounting configuration includes a resilient member and a spacer disposed around the screws proximate to the apertures. The resilient members are configured to bias the heat sink against the ASIC to maintain the heat sink in contact with the ASIC. The spacers are configured to prevent the heat sink from impacting the ASIC with forces large enough to damage the BGA when the line card is subjected to vibrations and shocks.

    ACTIVE AC POWER LOSS DETECTION
    69.
    发明申请
    ACTIVE AC POWER LOSS DETECTION 审中-公开

    公开(公告)号：US20200309861A1

    公开(公告)日：2020-10-01

    申请号：US16901989

    申请日：2020-06-15

    Applicant: Cisco Technology, Inc.

    Inventor： Xiqun Zhu ,  Sung Kee Baek ,  Robert Gregory Twiss

    IPC: G01R31/42 ,  G01R19/165 ,  G01R31/50 ,  H02J3/00 ,  H02J13/00

    Abstract: To reduce the rate at which a false alternating current (“AC”) loss alarming signal is generated, but at the same time detect an actual AC loss situation in a timely manner, the disclosed method describes an AC line power loss detection and active verification method. If the AC line input voltage dips momentarily lower than a standard sine wave amplitude, the AC line may not be considered lost as long as it still has energy to drive a load. The method inserts a momentary load across the AC line and compares the AC line voltage before and after the extra load is applied. If the AC power is present, this extra loading will increase the AC loading current momentarily, but will not affect the AC line voltage. However, if the AC power is lost, such loading will lower the AC line voltage, indicating a loss of power.

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