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公开(公告)号：US20240120826A1
公开(公告)日：2024-04-11
申请号：US18543166
申请日：2023-12-18
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Ara BISSAL , Andreas STIEDL , Fugao ZHAO , Shuai WANG
Abstract: A circuit breaker and a power supply system. The circuit breaker is disposed between a direct current power source and a load, the circuit breaker includes a first coil, a second coil, a switch unit, and a driver, where the switch unit and the driver form a linkage connection. The direct current power source is coupled to a first end of the first coil and a first end of the second coil, both a second end of the first coil and a second end of the second coil are coupled to one end of the switch unit, and the other end of the switch unit is coupled to the load. Inductive reactance of the first coil is less than inductive reactance of the second coil.
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公开(公告)号：US20240120784A1
公开(公告)日：2024-04-11
申请号：US18393757
申请日：2023-12-22
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hua Lan , Zhao Zhou , Jinhua Chen
Abstract: Embodiments of the present disclosure provide a rotor, a motor, a powertrain, and a vehicle. The rotor includes wedges and pole shoes. The wedges fit the pole shoes through curved portions. The curved portions can effectively relieve stress concentration of joint portions, increase strength of the wedges and the pole shoes, and effectively increase effective winding space of slots in the rotor. In this way, power density of a motor in which the rotor is used is increased.
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公开(公告)号：US20240098879A1
公开(公告)日：2024-03-21
申请号：US18525081
申请日：2023-11-30
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Chunxia Xu , Xiaowei Hui , Hao Wu
CPC classification number: H05K1/0209 , B60L53/14 , H02J7/0042 , H02J50/12 , H05K7/20218 , H05K2201/062
Abstract: This disclosure discloses a power adapter and an electronic device system, and relates to the field of heat dissipation technologies. The power adapter includes a housing, a printed circuit board assembly, and insulation powder filled in the housing. The printed circuit board assembly is fastened in the housing, and the insulation powder is used to conduct heat generated by the printed circuit board assembly to the housing. Compared with a thermally conductive adhesive, the insulation powder does not have a problem of poor fluidity, and can more easily be sufficiently filled. This solution improves heat dissipation effect of the power adapter and helps further increase a charging power of the power adapter.
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公开(公告)号：US20240097513A1
公开(公告)日：2024-03-21
申请号：US18521906
申请日：2023-11-28
Applicant: Huawei Digital Power Technologies Co., Ltd. , Nanjing University of Science and Technology
Inventor： Weiwei Geng , Chaoqiang Wu , Jinhua Chen , Zhao Zhou
IPC: H02K1/2798 , H02K1/28 , H02K21/24
CPC classification number: H02K1/2798 , H02K1/28 , H02K21/24
Abstract: This application relates to the field of motor technologies, and provides a motor rotor, a drive motor, and an electric vehicle. In the motor rotor, a rotor core with at least two protruding components is designed. At least two magnetic steels and at least two sheets are disposed in grooves between the at least two protruding components and then coupled to the rotor core with a rotor pressing plate. In addition, one SMC sheet is stacked on each of the magnetic steels, so that an eddy current loss of a permanent magnet can be effectively reduced. Each of the magnetic steels is disposed in a groove between protruding components, and the SMC sheet is added, so that a saliency ratio is increased, a reluctance torque ratio is increased, and a quantity of magnetic steels for use is reduced.
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公开(公告)号：US20240090146A1
公开(公告)日：2024-03-14
申请号：US18467007
申请日：2023-09-14
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhanfeng LIANG , Zhangrui CHEN , Maofan LI , Lin LIU
CPC classification number: H05K5/0217 , H05K5/0069 , H05K5/0214 , H05K5/0247 , H05K5/03
Abstract: An electronic device includes a lower housing and an upper cover that are connected to each other. The upper cover has a bending structure that faces a direction of the lower housing, an end that is of the lower housing and that faces the upper cover has a flanging structure, the flanging structure overlaps a bottom wall of the bending structure, and the upper cover and the lower housing are connected at an overlapping part of the bending structure and the flanging structure.
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Patent Agency Ranking
公开(公告)号：US20240088785A1
公开(公告)日：2024-03-14
申请号：US18517117
申请日：2023-11-22
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Xinyu YU , Yunfeng LIU , Kai XIN , Fuqiang XU
CPC classification number: H02M3/07 , H02J3/381 , H02M7/487 , H02M7/493 , H02J2300/26 , H02M1/0054
Abstract: The embodiments provide an RSCC and a control method thereof. The RSCC includes an input capacitor, an output capacitor, N parallel RSC branches, and a controller. The controller is configured to: determine an average value of characteristic currents of N resonance units; and reduce a duty cycle of a control signal of a charging switch in a first switch unit when determining that a characteristic current of a first resonance unit is greater than the average value, where a corresponding branch is in a charging stage when the charging switch is turned on; or reduce a duty cycle of a control signal of a discharging switch in a first switch unit when determining that a characteristic current of a first resonance unit is less than the average value, where a corresponding branch is in a discharging stage when the discharging switch is turned on.
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97.发明公开公开(公告)号：US20240079882A1
公开(公告)日：2024-03-07
申请号：US18507622
申请日：2023-11-13
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Longting Sun , Tiansan Lin , Bo Yu , Yongbing Gao
CPC classification number: H02J3/46 , H02J3/0012 , H02M1/0048 , H02M1/007 , H02M1/008 , H02J2300/24
Abstract: This application discloses a photovoltaic power generation system control method, a photovoltaic power generation system, and a switching apparatus, to reduce a loss of the photovoltaic power generation system. The switching apparatus includes: a switching unit, a detection unit, and a controller. The switching unit includes a first output end, a second output end, a first input end connected to each first DC/DC converter in a one-to-one correspondence, and a second input end connected to each second DC/DC converter in a one-to-one correspondence. The first output end is connected to an input end of a first DC/AC converter, and the second output end is connected to an input end of a second DC/AC converter. The detection unit is separately connected to the first DC/AC converter, the second DC/AC converter, a plurality of first DC/DC converters, and a plurality of second DC/DC converters.
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公开(公告)号：US20240079881A1
公开(公告)日：2024-03-07
申请号：US18496045
申请日：2023-10-27
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Lin LI , Zhiwu XU , Haibin GUO
CPC classification number: H02J3/381 , H02J3/32 , H02J3/466 , H02J2300/26
Abstract: A power system includes N direct current coupling units, N direct current buses, and a main controller. The main controller is configured to: obtain a total network input demand power (a network input power required by the power grid); obtain first amplitude limiting values (indicate a maximum discharging power that can be supplied by each energy unit to the power grid); and determine first network input power values (a power value allocated to each energy unit and that is input to the power grid, and at least one direct current coupling unit is in a first amplitude limiting state) based on the total network input demand power and the first amplitude limiting values, and the first amplitude limiting state is that a first network input power value of direct current coupling unit is equal to a first amplitude limiting value corresponding to the direct current coupling unit.
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99.发明公开公开(公告)号：US20240077897A1
公开(公告)日：2024-03-07
申请号：US18506619
申请日：2023-11-10
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hui Ma , Zhipeng Wu , Hao Meng , Zhirun Li
CPC classification number: G05D23/20 , H02J3/32 , H02J3/38 , H02J7/0013 , H02J7/0047 , H02J7/007192 , H02J7/35 , H02J2207/20 , H02J2300/24
Abstract: In accordance with an embodiment, an energy storage system includes energy storage container that a temperature control system, a battery cluster, and a controller. The controller determines a specified temperature of the temperature control system corresponding to a maximum difference between an available capacity of the battery cluster and a power consumption of the temperature control system as a target temperature. The determination of the specified temperature is based on: a correspondence between the available capacity of the battery cluster and a plurality of different specified temperatures in a specified temperature set of the temperature control system, and a correspondence between the power consumption of the temperature control system and the plurality of different specified temperatures in the specified temperature set of the temperature control system. The temperature control system is configured to adjust a temperature inside the energy storage container to the target temperature.
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100.发明公开公开(公告)号：US20240072650A1
公开(公告)日：2024-02-29
申请号：US18455913
申请日：2023-08-25
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Ken CHIN , Shuaibing WANG , Bo WANG
CPC classification number: H02M1/4233 , H02M1/0085 , H02M3/158
Abstract: A power module, a totem-pole power factor correction circuit, and a control circuit thereof. In response to a case in which a phase value of a transient voltage of an input voltage of the totem-pole power factor correction circuit is within a predetermined phase range, and an absolute value of a voltage value is less than a predetermined voltage value, the control circuit controls a main power switch in the totem-pole power factor correction circuit to be turned on and off, and controls an auxiliary power switch to remain off.
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