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81.发明公开公开(公告)号：US20240194967A1
公开(公告)日：2024-06-13
申请号：US18527628
申请日：2023-12-04
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Gang WANG , Aitang CHEN
IPC: H01M10/63 , H01M10/42 , H01M10/48 , H01M10/615 , H01M50/512 , H02J3/32 , H02J3/38 , H02J7/00 , H02J7/35
CPC classification number: H01M10/63 , H01M10/425 , H01M10/482 , H01M10/615 , H01M50/512 , H02J3/32 , H02J3/38 , H02J7/00032 , H02J7/0013 , H02J7/0048 , H02J7/007194 , H02J7/35 , H01M2010/4271 , H02J2207/20 , H02J2300/26
Abstract: An energy storage system includes a controller and a plurality of battery packs connected in parallel. The battery pack includes a cell pack, a temperature sensing module, a temperature control module, and a battery management system (BMS). The temperature sensing module is configured to detect a temperature of the battery pack, the temperature control module is configured to heat the battery pack, and the BMS is configured to send heating requests and states of charge (SOCs) of corresponding battery packs to the controller. The controller determines, based on a difference between a voltage of a direct-current bus and a charging voltage reference value of the energy storage system, a quantity of battery packs whose temperature control modules can be enabled, and determines, based on the SOCs of the battery packs, priorities for enabling the temperature control modules of the battery packs, enhancing utilization of power generation power.
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公开(公告)号：US20240166067A1
公开(公告)日：2024-05-23
申请号：US18431146
申请日：2024-02-02
Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Inventor： Yuanning HE , Ping KUANG , Liqiong YI , Xinru HAN , Yichang WANG , Quanxi LIN
Abstract: A charging system may include a plurality of power modules, a distributing switch module, and a plurality of charging ports. The distributing switch module includes a first distributing unit and a second distributing unit. The first distributing unit may connect a first part of power modules in the plurality of power modules to a first charging port, to distribute powers of the first part of power modules to the first charging port. The second distributing unit may connect a second part of power modules in the plurality of power modules to a second charging port, to distribute powers of the second part of power modules to the second charging port. Therefore, the first charging port may charge a first terminal, and the second charging port may charge a second terminal.
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公开(公告)号：US11990835B2
公开(公告)日：2024-05-21
申请号：US17473202
申请日：2021-09-13
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Dianbo Fu , Heping Dai
CPC classification number: H02M1/4216 , H02M1/4208 , H02M1/44 , H02M3/335 , H02M7/06 , H02M3/01 , H02M3/33573
Abstract: A power conversion system includes a first rectifier and a second rectifier. The first rectifier is configured to operate at a first operating frequency. The first rectifier is configured to be connected with a three-phase power source. A first amount of power flows through the first rectifier from the three-phase power source. The second rectifier is configured to operate at a second operating frequency. The second rectifier is configured to be connected in parallel with the first rectifier, and a second amount of power flows through the second rectifier from the three-phase power source. The second operating frequency is higher than the first operating frequency, and the second amount of power is a fraction of the first amount of power.
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公开(公告)号：US20240159798A1
公开(公告)日：2024-05-16
申请号：US18419284
申请日：2024-01-22
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Dinghua Shen , Wenguang Li , Baoguo Chen , Hongda Weng
CPC classification number: G01R15/04 , G01R19/0084 , G01R35/005
Abstract: The voltage sampling apparatus includes a differential circuit, a voltage division circuit, and a first calibration switch. A first output end of the differential circuit and an input end of a first voltage division branch of the voltage division circuit are connected to one end of the first calibration switch. A second output end of the differential circuit and an input end of a second voltage division branch of the voltage division circuit are connected to the other end of the first calibration switch. When the first calibration switch is in an on state, the differential circuit is configured to input a target signal to the first voltage division branch and the second voltage division branch that are connected in parallel.
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公开(公告)号：US11984819B2
公开(公告)日：2024-05-14
申请号：US17495117
申请日：2021-10-06
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhaohui Wang , Lei Shi , Dong Chen
IPC: H02J3/38 , H02M1/12 , H02M1/14 , H02M7/5387
CPC classification number: H02M7/53871 , H02J3/381 , H02M1/123 , H02M1/14 , H02J2300/24
Abstract: A power conversion circuit includes a switching network, a control circuit, a filter circuit, and a direct current side circuit; and the filter circuit includes a first power inductor, a common mode choke, a first differential mode filter capacitor, a first common mode filter capacitor, and a second common mode filter capacitor. The first power inductor includes a first winding and a second winding, and the common mode choke includes a third winding and a fourth winding; a first end of the first winding and a first end of the second winding are separately connected to the switching network, a second end of the first winding and a second end of the second winding are respectively connected to a first end of the third winding and a first end of the fourth winding.
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Patent Agency Ranking
公开(公告)号：US11982214B2
公开(公告)日：2024-05-14
申请号：US18323259
申请日：2023-05-24
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Jiangang Wang , Chaoqiang Wu , Hongbing Liu , Jun Chen , Hu Zhong
CPC classification number: F01M1/16 , F01M1/02 , F01M11/0004 , F16D57/06
Abstract: An oil inlet of a motor communicates with a first end of an oil pump through a first passage. A first oil sump of the motor communicates with a second end of the oil pump through a second passage. When the oil pump is rotating, a port at the first end is an oil outlet of the oil pump, and a port at the second end is an oil inlet of the oil pump. The first end of the oil pump communicates with a second oil sump through a third passage with a first valve. The second end of the oil pump communicates with the second oil sump through a fourth passage with a second valve. In this way, when the oil pump is reversing, coolant may be input into a motor cavity and accumulate in the motor cavity, so as to cool motor components in an immersion manner.
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公开(公告)号：US11979019B2
公开(公告)日：2024-05-07
申请号：US17446492
申请日：2021-08-31
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Xun Wang , Zhen Cao , Yongbing Gao
CPC classification number: H02H7/122 , H02H7/1213
Abstract: A breaker apparatus and an inverter system are configured to disconnect an electrical connection when a fault occurs in a protected circuit. The breaker apparatus is connected in series in a protected circuit, and is configured to disconnect the electrical connection when a fault occurs in the protected circuit. The breaker apparatus includes a first branch, and a second branch. The first branch includes an overcurrent-automatic-disconnection unit and a first current limiting unit that are connected in series, where the overcurrent-automatic-disconnection unit is configured to be automatically disconnected when a current flowing through the overcurrent-automatic-disconnection unit exceeds a breaking current threshold. The a second branch is configured to be open or closed under control of the controller. The controller is configured to control the first controllable switch unit to be closed when the protected circuit operates normally, and control the first controllable switch unit to be open when a fault occurs in the protected circuit.
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公开(公告)号：US20240145426A1
公开(公告)日：2024-05-02
申请号：US18489284
申请日：2023-10-18
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Fenglong LU , Dong CHEN , Lei SHI , Yunyu TANG , Yunfeng LIU
IPC: H01L23/00
CPC classification number: H01L24/49 , H01L24/45 , H01L24/48 , H01L2224/45124 , H01L2224/45144 , H01L2224/45147 , H01L2224/48091 , H01L2224/48137 , H01L2224/48155 , H01L2224/4917 , H01L2924/13013 , H01L2924/13055
Abstract: A bonding structure and a power device. The bonding structure includes a first power unit and at least two bonding wires. At least one end of the bonding wire is connected to the first power unit through bonding. Projections that are of lead paths of the at least two bonding wires and that are on a preset plane have at least one intersection point. Spatial cross wire bonding is performed on the bonding wires, so that lead paths of the bonding wires form an angle with each other, thereby weakening electromagnetic force between the bonding wires. Therefore, fatigue due to fluctuating stress of the bonding wires can be alleviated, service lives of the bonding wires can be prolonged, and bonding effect can be ensured to a maximum extent.
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公开(公告)号：US11971089B2
公开(公告)日：2024-04-30
申请号：US17706299
申请日：2022-03-28
Applicant: Huawei Digital Power Technologies Co., Ltd.
CPC classification number: F16H3/091 , B60K17/08 , F16H3/10 , F16H57/0025 , F16H2200/0034
Abstract: This application provides a two-speed transmission system. The two-speed transmission system includes a first fixed gear fastened on a first shaft, a first floating gear connected to a second shaft through rotation, a first connection mechanism, and a one-way clutch. The first connection mechanism is configured to implement connection or disconnection between the first floating gear and the second shaft. The one-way clutch is located between the first floating gear and the first connection mechanism. An inner surface of the one-way clutch is connected to the first floating gear. An outer surface of the one-way clutch abuts against the first connection mechanism. The outer surface of the one-way clutch is connected to the first connection mechanism. An acting force of the outer surface directly acts on the first connection mechanism instead of a tooth surface of the first floating gear, to reduce an impact on accuracy of gear transmission.
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公开(公告)号：US20240123821A1
公开(公告)日：2024-04-18
申请号：US18394609
申请日：2023-12-22
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhengyi TANG , Wenwu MA , Jingzhou WEI , Yi CAO
CPC classification number: B60K17/043 , B60K7/0007 , F16H1/203 , B60K2007/0069
Abstract: A powertrain system and an electric vehicle to reduce a structure size of the powertrain system. The powertrain system includes two subsystems. The two subsystems are disposed side by side in a first direction and are symmetrical to each other. Each of the subsystems includes a motor, a deceleration mechanism, and an output shaft. A rotation shaft of the motor is disposed in a second direction. The deceleration mechanism includes a cylindrical gear pair and a bevel gear pair. The cylindrical gear pair includes an active cylindrical gear and a driven cylindrical gear, and the active cylindrical gear is connected to the rotation shaft of the motor. The driven cylindrical gear is located on a side that is of the active cylindrical gear and that is away or distal from the other subsystem. The bevel gear pair includes an active bevel gear and a driven bevel gear.
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