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公开(公告)号：US20250150010A1
公开(公告)日：2025-05-08
申请号：US18934504
申请日：2024-11-01
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Sen CAO , Hongyong LI , Yankun XU
IPC: H02P21/16 , B60L58/27 , H01M10/615 , H01M10/625 , H01M10/637 , H02P21/22
Abstract: A motor controller for pulse heating of a power battery. The motor controller includes an inverter circuit, the inverter circuit includes three switching transistor bridge arms, two ends of each switching transistor bridge arm are respectively configured to connect to positive and negative electrodes of the power battery through a direct current bus, and bridge arm midpoints of the three switching transistor bridge arms are separately configured to connect to a three-phase winding of a motor. The bridge arm midpoints of the three switching transistor bridge arms are configured to output a three-phase current, the three-phase current is used to generate a pulse alternating current on the direct current bus, and the pulse alternating current is used to heat the power battery. A current of each phase of the three-phase current is a unipolar triangular wave, and a sum of the three-phase current is zero.
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公开(公告)号：US20250149234A1
公开(公告)日：2025-05-08
申请号：US19014345
申请日：2025-01-09
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Jinkun LIANG , Yanjun ZHI , Zhou ZHENG , Xiaoqing HU , Xiaming JING
Abstract: A integrated inductor includes a first magnetic core, at least two second magnetic cores, and at least two windings. The first magnetic core includes a first surface and a second surface that are opposite to each other in a first direction. The second magnetic cores are disposed in the first direction on a side that is of the first surface and that is away from the second surface. The winding is wound around the first magnetic core and the second magnetic core. The second magnetic core includes a first part and a second part. Along the first direction and on a side that is of the first surface and that is opposite to the second surface, the first part is located between the winding and the first surface, and the second part is located on side that is of the winding and that is away from the first surface.
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公开(公告)号：US20250141345A1
公开(公告)日：2025-05-01
申请号：US19009701
申请日：2025-01-03
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yao Chang , Jianrui Xue
IPC: H02M1/32 , B60L8/00 , G01K7/01 , H02M7/00 , H02M7/5387
Abstract: A power module includes a first power semiconductor chip, a first temperature sensor, a first diode chip, and a first circuit board. The first power semiconductor chip includes a first output electrode. The first temperature sensor is located inside the first power semiconductor chip, a first cathode of the first temperature sensor is electrically connected to the first output electrode. The first diode chip is electrically connected to the first power semiconductor chip, and a voltage is generated between the first output electrode and the first cathode when the first diode chip generates a reverse recovery current. The first circuit board is configured to obtain a first voltage difference between the first output electrode and the first cathode, to obtain a temperature of the first diode chip. The power module in this application can accurately and quickly detect temperatures of the first power semiconductor chip and the first diode chip.
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公开(公告)号：US20250118956A1
公开(公告)日：2025-04-10
申请号：US18982866
申请日：2024-12-16
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Xiufeng Zhang , Yanzhong Zhang
Abstract: A protection apparatus includes an interface, a protection switch, a direct current bus, and a controller. The apparatus is connected to at least two photovoltaic units via the interface, the at least two photovoltaic units are coupled to the direct current bus inside the apparatus to form at least two branches, and each branch is connected to at least one photovoltaic unit. The protection switch is configured to disconnect all or some of the photovoltaic units from the direct current bus, to enable a maximum of three photovoltaic units to be directly connected in parallel. According to the apparatus, a photovoltaic unit and a line are protected with a low power loss when a photovoltaic inverter is faulty.
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公开(公告)号：US20250118617A1
公开(公告)日：2025-04-10
申请号：US18988140
申请日：2024-12-19
Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Inventor： Huibin CHEN , Jiyang LI , Heng WANG
IPC: H01L23/367 , H01L21/48 , H01L23/00 , H01L23/31 , H01L23/373 , H01L23/498 , H01L23/538 , H01L25/07
Abstract: A power module includes a first substrate, a second substrate, a first heat sink, a second heat sink, and a chip that are disposed opposite to each other. The chip is disposed between the first heat sink and the second heat sink that are disposed opposite to each other. The first heat sink and the second heat sink are connected to the chip through sintering or welding. The first substrate and the second substrate are respectively connected to the first heat sink and the second heat sink through welding or sintering.
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Patent Agency Ranking
公开(公告)号：US12272808B2
公开(公告)日：2025-04-08
申请号：US17729168
申请日：2022-04-26
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hao Meng , Quanming Li
IPC: H01M10/6567 , H01M10/613 , H01M10/627 , H01M10/63
Abstract: A temperature control apparatus and a temperature control system include at least one liquid storage device for storing liquid, at least two liquid supply devices, and a controller. Each liquid supply device is connected to the at least one liquid storage device through a first multiport valve to obtain liquid and is connected to a temperature regulating device through a second multiport valve. The controller is configured to control the first multiport valve and the second multiport valve that are connected to the controller to be conducted or not to be conducted. When the first multiport valve and the second multiport valve are conducted, each liquid supply device outputs the obtained liquid to the temperature regulating device. The temperature regulating device regulates a temperature of the liquid injected by each liquid storage device, and then supplies the liquid to at least one battery system.
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公开(公告)号：US20250098082A1
公开(公告)日：2025-03-20
申请号：US18885907
申请日：2024-09-16
Applicant: Huawei Digital Power Technologies Co, Ltd.
Inventor： Yang YAN , Weijia YAN , Zhaoqi CAI , Gun YANG , Yiyang HE
Abstract: A power generation system, a power converter, and a switch assembly. The plurality of positive input ports and the plurality of negative input ports are configured to electrically connect the switch assembly to an external direct current source, and the switch assembly is electrically connected to the power device through a trace on the circuit mainboard. The switch assembly includes a plurality of first pins and a plurality of second pins, the plurality of first pins are located in a first region, the plurality of second pins are located in a second region, the first region and the second region are stacked in a first direction. The controller is configured to send a switch-off signal to the switch assembly when the external direct current source or the power device is faulty. The power converter provided can resolve a problem of a short circuit occurring during condensation.
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公开(公告)号：US20250096698A1
公开(公告)日：2025-03-20
申请号：US18892057
申请日：2024-09-20
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Gun Yang , Weijia Yan , Yang Yan , Weiping Song
Abstract: An inverter includes a chassis, which has a cavity that accommodates a plurality of power devices and a partition and blocking assembly. The partition and blocking assembly divides the cavity of the chassis into two installation cavities, and the plurality of power devices are disposed in the two installation cavities. The chassis includes a first side wall and a second side wall that are adjacent to each other. An air inlet of a fan of the partition and blocking assembly communicates with one installation cavity, an air outlet of the fan communicates with the other installation cavity, and a direction from the air inlet to the air outlet faces away from the first side wall. A gap exists between the partition and blocking assembly and the second side wall, or the partition and blocking assembly is provided with a through hole.
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公开(公告)号：US12255536B2
公开(公告)日：2025-03-18
申请号：US17979058
申请日：2022-11-02
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhuyong Huang , Xiaofei Zhang
Abstract: A power conversion system includes a first controller, a system output end, at least one system input end, at least one power conversion component, and a bus communication apparatus coupled between each power conversion component and the first controller. Each system input end is in a one-to-one correspondence with each power conversion component. Each power conversion component is configured to convert an alternating current input through a first input end of each power conversion component into a direct current, and output the direct current through an output end of each power conversion component.
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公开(公告)号：US20250079332A1
公开(公告)日：2025-03-06
申请号：US18952995
申请日：2024-11-19
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Andreas Munding , Lasse Petteri Palm , Gilberto Curatola
IPC: H01L23/552 , H01L23/498 , H01L23/538 , H01L25/065 , H02M7/00
Abstract: The disclosure relates to a power converter package (100) for converting a first DC voltage and a second DC voltage into a common AC voltage. The power converter package comprises: a first power semiconductor (130) and a second power semiconductor (140); a first substrate (110); and a second substrate (120). The first substrate (110) comprises a first supply voltage area (113) being formed to supply the first DC voltage and a second supply voltage area (114) being formed to supply the second DC voltage. The first substrate (110) comprises a base metal area (115) being arranged on a first substrate lower main face (112). The base metal area (115) is configured to extract dissipated heat from the first power semiconductor (130) and the second power semiconductor (140). The second substrate (120) comprises an AC voltage output area (150) formed to provide the AC voltage.
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