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公开(公告)号：US20240072327A1
公开(公告)日：2024-02-29
申请号：US18453847
申请日：2023-08-22
Applicant: Huawei Digital Power Technologies Co., Ltd. , University of Science and Technology of China
Inventor： Lei Chen , Cong Cheng , Jie Xie , Cheng Xiong , Zhuangzhuang Jia , Qingsong Wang , Wenxin Mei
IPC: H01M10/63 , A62C3/16 , A62C37/40 , H01M10/48 , H01M10/613 , H01M10/6554 , H01M10/6556 , H01M10/6568 , H01M50/209 , H01M50/342
CPC classification number: H01M10/63 , A62C3/16 , A62C37/40 , H01M10/482 , H01M10/486 , H01M10/613 , H01M10/6554 , H01M10/6556 , H01M10/6568 , H01M50/209 , H01M50/3425 , H01M2200/10 , H01M2200/20 , H01M2220/20
Abstract: This application discloses a battery box. The battery box includes a controller, a first sensor, and a spraying apparatus and an extinguishing agent pipeline that are located above a battery module. The controller is electrically connected to the first sensor and the spraying apparatus. The spraying apparatus is connected to the extinguishing agent pipeline. The first sensor is configured to detect a temperature of the battery box, and send a first electrical signal to the controller. The controller is configured to control the spraying apparatus to spray an extinguishing agent to the battery module. According to the solution of this application, when thermal runaway occurs in the battery box, and the temperature exceeds a set threshold, a fire may be extinguished in time, to avoid spreading of the fire and reduce a loss.
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公开(公告)号：US20240059165A1
公开(公告)日：2024-02-22
申请号：US18452491
申请日：2023-08-18
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Dong Cheng , Mengxiong Liao
CPC classification number: B60L53/22 , H02J7/02 , B60L53/31 , H02J2207/20 , B60L2210/30 , B60L2210/10
Abstract: This application provides an off-board charger, a charging system, and a charging station. The off-board charger includes a power conversion circuit, a power supply port, a conversion adapter, and a controller. The conversion adapter includes a connection port and an alternating current output port. The controller controls, when the conversion adapter is connected to the power supply port, the power supply port to connect to an alternating current power grid, the power supply port to connect to the connection port, and the alternating current output port to connect to a charging port of a powered device; or controls, when the conversion adapter is disconnected from the power supply port, the power conversion circuit to connect to an alternating current power grid, and the power supply port to connect to the charging port of the powered device.
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公开(公告)号：US11909323B2
公开(公告)日：2024-02-20
申请号：US17847516
申请日：2022-06-23
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Tianyu Wang , Weiping Liu
CPC classification number: H02M3/33573 , H02M3/01 , H02M3/33571 , H02M3/33584 , H02M3/33592
Abstract: A power converter includes a primary side circuit, a secondary side circuit, a transformer, and a controller. A primary side of the transformer is connected to the primary side circuit, and a secondary side of the transformer is connected to the secondary side circuit. The primary side circuit includes a resonant circuit. The secondary side circuit is configured to supply electric energy to the transformer. The transformer is configured to supply the electric energy to the primary side circuit. The primary side circuit is configured to convert the electric energy. The controller is connected to the secondary side circuit, and is configured to control, in a control cycle, the secondary side circuit to supply the electric energy to the transformer. Duration of the control cycle is greater than or equal to duration of a resonance cycle of the resonant circuit.
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公开(公告)号：US11898773B2
公开(公告)日：2024-02-13
申请号：US17826826
申请日：2022-05-27
Applicant: Huawei Digital Power Technologies Co., Ltd.
CPC classification number: F24F5/0035 , F24F13/20 , F24F13/28 , F24F13/30 , H05K7/20827 , H05K7/20836 , F24F2013/205 , F24F2110/12
Abstract: This application provides an evaporative cooling unit. The evaporative cooling unit includes an outdoor channel, an indoor channel, and a heat exchange apparatus, and, further includes: an air filter and a defrosting apparatus that are disposed in the outdoor channel. The defrosting apparatus is located on a side that is of the air filter and that is close to an air intake vent of the outdoor channel. The defrosting apparatus includes a heat exchange film, and the heat exchange film has a first channel and a second channel that are arranged crosswise. The first channel communicates with the air intake vent of the outdoor channel, the second channel communicates with the indoor channel, and the first channel communicates with the second channel. The defrosting apparatus further includes a switch valve, and the switch valve is configured to control the second channel to communicate with the indoor channel.
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公开(公告)号：US20240039278A1
公开(公告)日：2024-02-01
申请号：US18484724
申请日：2023-10-11
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Lin LI , Qinwei LIU , Mingwei XU
CPC classification number: H02J3/0012 , H02J3/38 , H02J2300/24
Abstract: Any one of a plurality of to-be-grouped devices in a power supply system reports an initial bus voltage to a topology detection device; and reports a current bus voltage after delivering a bus voltage adjustment instruction to a target reference device. The bus voltage adjustment instruction instructs the target reference device to adjust a voltage. The target reference device receives the bus voltage adjustment instruction and adjusts the voltage according to the bus voltage adjustment instruction. The topology detection device obtains the initial bus voltage and the current bus voltage of the plurality of to-be-grouped devices, and determines, based on a difference between the initial bus voltage of the plurality of to-be-grouped devices and the current bus voltage of the plurality of to-be-grouped devices, whether the target reference device and a target to-be-grouped device are connected to a same bus.
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Patent Agency Ranking
公开(公告)号：US20240038470A1
公开(公告)日：2024-02-01
申请号：US18374794
申请日：2023-09-29
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Ara BISSAL , Mario WALTER , Jingwen CHEN
Abstract: A circuit breaker and a power supply system are disclosed. The circuit breaker includes a mechanical switch circuit, where the mechanical switch circuit includes a busbar, a power module, and a drive module. The power module includes a movable contact and a stationary contact, where the stationary contact is electrically connected to the busbar, the movable contact is movable, when the movable contact is in contact with the stationary contact, the mechanical switch circuit is conducted, and the drive module includes a movable coil and a stationary coil, where the movable coil and the stationary coil are placed adjacently, so that the movable coil and the stationary coil repel or attract each other based on whether current directions are the same, and the movable coil is configured to drive the movable contact to be in contact with or disconnected from the stationary contact.
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公开(公告)号：US20240038437A1
公开(公告)日：2024-02-01
申请号：US18486469
申请日：2023-10-13
Applicant: Huawei Digital Power Technologies Co., Ltd.
CPC classification number: H01F27/2804 , H01F27/24 , H01F27/306
Abstract: A planar transformer includes a magnetic core. The magnetic core includes a first magnetic core cover, a second magnetic core cover, n first magnetic core pillars, and k second magnetic core pillars, the n first magnetic core pillars and the k second magnetic core pillars are disposed between the first magnetic core cover and the second magnetic core cover, and n and k each are an integer greater than 0. A primary-side winding and a secondary-side winding that are coupled to each other are disposed on each of the n first magnetic core pillars, and an auxiliary inductor winding is disposed on each of the k second magnetic core pillars.
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108.发明公开公开(公告)号：US20240030724A1
公开(公告)日：2024-01-25
申请号：US18477029
申请日：2023-09-28
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Lin Li , Zhipeng Wu , Bo Yu
IPC: H02J7/00
CPC classification number: H02J7/0016 , H02J7/005 , H02J7/0048 , H02J7/00712 , H02J2207/20
Abstract: In accordance with an embodiment, and energy storage system includes a battery cluster, a power conversion circuit, and a controller. An output end of the battery cluster is connected to a first terminal of the power conversion circuit, and a second terminal of the power conversion circuit is connected to an output end of the energy storage system. Each battery cluster includes at least two energy storage modules connected in series, each energy storage module includes one bypass circuit and one battery pack, and each battery pack includes a plurality of batteries. The controller controls each bypass circuit based on a first parameter value of each battery pack, so that electricity quantities of battery packs are balanced.
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公开(公告)号：US20240022082A1
公开(公告)日：2024-01-18
申请号：US18471694
申请日：2023-09-21
Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Inventor： Mingxuan DONG , Kai XIN
Abstract: This application provides an energy storage system, including a controller, an inverter, an on-grid/off-grid mode switch, and a load. The inverter is configured to: in response to determining that, the energy storage system is in an islanding state, freeze an output frequency of the inverter based on a preset frequency, and control an output current of the inverter based on an association relationship that an output voltage of the inverter is negatively correlated with apparent power of the inverter. The controller is configured to send a disconnection instruction to the on-grid/off-grid mode switch. The controller is further configured to send a switching instruction to the inverter in response to receiving a disconnection complete message from the on-grid/off-grid mode switch. The inverter is further configured to switch to a voltage source mode in response to determining that the output voltage of the inverter meets the preset range of the rated voltage.
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110.发明公开公开(公告)号：US20240022077A1
公开(公告)日：2024-01-18
申请号：US18477563
申请日：2023-09-29
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Shijiang Yu , Jianshan Li , Chunlei Zhang , Zhipeng Wu , Lei Shi
CPC classification number: H02J3/32 , H02J9/06 , H02J3/38 , H02J2300/24
Abstract: An energy storage apparatus, including a plurality of battery modules, a switch unit, a start unit; and an electrical energy output port. The energy storage apparatus is configured for use in a photovoltaic power generation system having a plurality of photovoltaic modules, a direct current-to-direct current (DC/DC) converter, and a direct current-to-alternating current (DC/AC) converter. The plurality of battery modules is separately connected to the start unit and the switch unit, and the plurality of battery modules are configured to, when the start unit receives a start signal, control the switch unit to be turned on. The energy storage apparatus is configured to, in response to the switch unit being turned on, output electrical energy of the plurality of battery modules through the electrical energy output port, and, in response to the switch unit being turned off, disconnect the plurality of battery modules from the electrical energy output port.
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