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公开(公告)号：US20230084868A1
公开(公告)日：2023-03-16
申请号：US17969201
申请日：2022-10-19
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yuan Liu , Dangen Nie , Peiguo Liu
IPC: H05K7/20
Abstract: A cooling capacity distribution unit includes a liquid-cooled circulating pump disposed in a cabinet, and a frequency converter that supplies power to the liquid-cooled circulating pump. The frequency converter includes an AC-DC module and a DC-AC module. The AC-DC module is configured to be connected to mains, and the DC-AC module is connected to the liquid-cooled circulating pump. The cooling capacity distribution unit further includes a power supply unit, where the power supply unit includes a backup battery disposed in the cabinet, and a DC-DC module connected to the backup battery. The DC-DC module is connected to the DC-AC module and is configured to supply power to the liquid-cooled circulating pump.
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Patent Agency Ranking
公开(公告)号：US12225687B2
公开(公告)日：2025-02-11
申请号：US17969201
申请日：2022-10-19
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yuan Liu , Dangen Nie , Peiguo Liu
Abstract: A cooling capacity distribution unit includes a liquid-cooled circulating pump disposed in a cabinet, and a frequency converter that supplies power to the liquid-cooled circulating pump. The frequency converter includes an AC-DC module and a DC-AC module. The AC-DC module is configured to be connected to mains, and the DC-AC module is connected to the liquid-cooled circulating pump. The cooling capacity distribution unit further includes a power supply unit, where the power supply unit includes a backup battery disposed in the cabinet, and a DC-DC module connected to the backup battery. The DC-DC module is connected to the DC-AC module and is configured to supply power to the liquid-cooled circulating pump.
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公开(公告)号：US20240235247A9
公开(公告)日：2024-07-11
申请号：US18490565
申请日：2023-10-19
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hejun Zhang , Peiguo Liu , Ziyi You , Maoyong Lu
CPC classification number: H02J9/06 , H02M3/33569
Abstract: A power distribution circuit of an uninterruptible power supply is provided, where a first port of the power distribution circuit of the uninterruptible power supply is electrically connected to a second port. A third port is electrically connected to the second port by using a compensation circuit. When an input voltage of the first port is less than a rated voltage of a load of the second port, an input voltage of the third port is input to the compensation circuit. The compensation circuit converts a direct current into an alternating current, so that the alternating current output by the compensation circuit and the input voltage of the first port jointly supply power to the load of the second port.
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公开(公告)号：US20240136848A1
公开(公告)日：2024-04-25
申请号：US18490565
申请日：2023-10-18
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hejun Zhang , Peiguo Liu , Ziyi You , Maoyong Lu
CPC classification number: H02J9/06 , H02M3/33569
Abstract: A power distribution circuit of an uninterruptible power supply is provided, where a first port of the power distribution circuit of the uninterruptible power supply is electrically connected to a second port. A third port is electrically connected to the second port by using a compensation circuit. When an input voltage of the first port is less than a rated voltage of a load of the second port, an input voltage of the third port is input to the compensation circuit. The compensation circuit converts a direct current into an alternating current, so that the alternating current output by the compensation circuit and the input voltage of the first port jointly supply power to the load of the second port.
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公开(公告)号：US20220385102A1
公开(公告)日：2022-12-01
申请号：US17825219
申请日：2022-05-26
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Mingming Pu , Peiguo Liu , Xiangtao Meng , Mingxiao Fu , Yao Zhang
Abstract: An air conditioning device includes an alternating current (AC) bus, a direct current (DC) bus, a first AC/DC circuit, a first DC/AC circuit, and a backup power supply apparatus. The AC bus is connected to two power supplies through a switching circuit. The backup power supply apparatus is connected to the DC bus or the AC bus. The backup power supply apparatus provides electric energy for the DC bus or the AC bus when the two power supplies are switched or fail, so that the first air conditioning load is not powered off. The backup power supply apparatus may supply power to the load when the two power supplies are switched or fail.
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6.发明授权公开(公告)号：US11909308B2
公开(公告)日：2024-02-20
申请号：US17544690
申请日：2021-12-07
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhuyong Huang , Xiaofei Zhang , Peng Shuai , Peiguo Liu
Abstract: Embodiments of this application provide a power conversion circuit. The power conversion circuit includes at least one first power conversion unit connected in series to a first phase line, at least one second power conversion unit connected in series to a second phase line, at least one third power conversion unit connected in series to a third phase line, a plurality of first start circuits connected in series to the first phase line, and a plurality of second start circuits connected in series to the second phase line. Each first start circuit includes a first relay and a first resistor that are connected in parallel, and first relays in all the first start circuits are sequentially closed after the power conversion circuit is powered on, to start the power conversion circuit. Each second start circuit includes a second relay and a second resistor that are connected in parallel.
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