CHOKE COIL MODULE OF HIGH POWER DENSITY DC-AC POWER INVERTER

    公开(公告)号:US20180294086A1

    公开(公告)日:2018-10-11

    申请号:US15482502

    申请日:2017-04-07

    发明人: Mu-Chun LIN

    摘要: A choke coil module of a high power density DC-AC power inverter includes a retainer. The retainer includes a lower plate and an upper plate. The upper and lower plates are spaced from each other and have two slots, respectively. An accommodation space of the retainer is provided with two choke coils which are disposed obliquely in a stagger manner. Top portions and bottom portions of the choke coils protrude out of and lean against the slots of the upper plate and the lower plate, respectively. The outside air is guided by a fan unit to enter a casing through air inlets, and the heat generated by the choke coils is expelled to the outside through air outlets. The choke coil module can be mounted in a smaller casing, such as a casing with a height of 2 U, to achieve excellent heat dissipation.

    VARIABLE FREQUENCY DRIVE CABINET VENTILATION SYSTEM, APPARATUS AND METHOD

    公开(公告)号:US20180249595A1

    公开(公告)日:2018-08-30

    申请号:US15442433

    申请日:2017-02-24

    申请人: Summit ESP, LLC

    IPC分类号: H05K7/20 H05K5/02

    摘要: A variable frequency drive (VFD) cabinet ventilation system, apparatus and method is described. A VFD cabinet includes an internal air circulating closed circuit that extends through an inside of an air-to-air heat exchanger and an external air open circuit extending around an outside of the heat exchanger. The circulating internal air closed circuit extends through a chamber closed to ingress of external air, the chamber including electrical components of a VFD system. The external air open circuit makes a turn from downwards to upwards before flowing through a VFD chassis including a drive of the VFD system. A VFD cabinet ventilation method includes turning a flow of cabinet ventilation air from downwards to upwards to separate dirt from the ventilation air, passing the separated ventilation air through a VFD chassis, and circulating internal cabinet air through a closed circuit including an inside of a heat exchanger.

    Multi-Channel Power Source
    29.
    发明申请

    公开(公告)号:US20180213675A1

    公开(公告)日:2018-07-26

    申请号:US15485218

    申请日:2017-04-11

    IPC分类号: H05K7/20 H02M7/04 H02M7/00

    摘要: A multi-channel power source includes at least one first power conversion unit, at least one second power conversion unit and a heat dissipation device. The first power conversion unit has a plurality of first subsidiary units. The first subsidiary units are electrically connected with each other. Each of the first subsidiary units has at least one first heating element. The second power conversion unit has a plurality of second subsidiary units. The second subsidiary units are electrically connected with each other. Each of the second subsidiary units has at least one second heating element. The heat dissipation device is configured to dissipate a heat generated by the first heating elements and the second heating elements along at least one heat dissipation medium direction. The first subsidiary units and the second subsidiary units are arranged in an at least partially staggered manner along the heat dissipation medium direction.