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公开(公告)号：US11527357B2
公开(公告)日：2022-12-13
申请号：US17223366
申请日：2021-04-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Hailing Wu , Aritra Sur , Xin Wu
Abstract: Disclosed is an assembly including a busbar that includes: a first layer that defines: first layer top and bottom surfaces; first layer first and second ends; and a first layer center region between the first layer first and second ends; and the first layer forms first layer perforations of different sizes about the first layer center region so perforations closer to the first layer first end are smaller than perforations spaced apart therefrom; a second layer that is disposed against and electrically isolated from the first layer bottom surface, wherein the second layer defines connector orifices having a same size as each other that are aligned with the first layer perforations; and a first capacitor supported against and electrically connected to the first layer top surface, wherein the first capacitor includes busbar connectors that respectively extend through the first layer perforations to electrically connect with the connector orifices.
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Patent Agency Ranking
公开(公告)号：US20220393489A1
公开(公告)日：2022-12-08
申请号：US17342221
申请日：2021-06-08
Applicant: Hamilton Sundstrand Corporation
Inventor： Yongduk Lee , Xin Wu , Bo Liu , Parag M. Kshirsagar
Abstract: Systems for a current limiting circuit are provided. Aspects include a first set of batteries coupled to a battery terminal, a power converter coupled to a power converter terminal, wherein the battery terminal is coupled to the power converter terminal, a first current limiting circuit in series with the first set of batteries, wherein the current limiting circuit comprises a first circuit comprising a first transistor in series with a first diode, a second circuit comprising a second transistor in series with a second diode, a first RL circuit, wherein the first RL circuit, the first circuit, and the second circuit are arranged in parallel, a controller configured to operate the first current limiter in a plurality of modes including a battery discharge mode including the controller operating the first transistor in an off state, and operating the second transistor in a switching state.
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公开(公告)号：US20210320612A1
公开(公告)日：2021-10-14
申请号：US17223427
申请日：2021-04-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Hailing Wu , Xin Wu , Aritra Sur
Abstract: An electronics assembly includes a motor controller electronics arrangement with a solid-state switch array, a feeder cable connected to the motor controller and in electrical communication with the solid-state switch array, and a phase change material body. The phase change material body is thermally coupled to the feeder cable and arranged outside of the motor controller to limit conduction of heat generated by resistive heating of the feeder cable into the motor controller and through the feeder cable. Vehicles, electrical systems, and methods of cooling feeder cables in motor controller electronics arrangements are also described.
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公开(公告)号：US20210320554A1
公开(公告)日：2021-10-14
申请号：US17223513
申请日：2021-04-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Hailing Wu , Gary L. Miles , Mark Hamilton Severson , Aritra Sur , Xin Wu
Abstract: An electronics assembly including a motor controller electronics arrangement includes a housing enclosing a solid-state switch array, a cold plate arranged within the housing and in thermal communication with the solid-state switch array, and a feeder cable. The feeder cable is electrically connected to the solid-state switch array, has a coolant jacket extending thereabout, is separated from the switch arrangement by the housing, and is in liquid communication with the cold plate to limit heat communicated by the feeder cable into the housing. Electrical systems and methods of cooling feeder cables are also described.
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公开(公告)号：US20210297009A1
公开(公告)日：2021-09-23
申请号：US16827528
申请日：2020-03-23
Applicant: Hamilton Sundstrand Corporation
Inventor： Bo Liu , Xin Wu , Yongduk Lee
IPC: H02M7/5395 , H02M7/487 , H02M7/5387 , H02M3/335 , H02P27/14 , H02P6/08
Abstract: A power conversion system includes a hybrid power converter phase unit including three voltage inputs, a voltage output, a pair of outer switches between the voltage inputs and voltage output, and a pair of inner switches between the voltage inputs and the outer switches. The power conversion system includes a controller in electrical communication with the inner and outer switches. The controller is configured to selectively disable or enable the inner switches by switching the inner switches OFF or ON. A method includes selectively disabling or enabling inner switches in a hybrid power converter phase unit with a controller such that the hybrid power converter phase unit is a 3-level converter when the inner switches are ON and enabled in a 3-level mode and a 2-level converter when the inner switches are OFF and disabled in a 2-level mode.
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公开(公告)号：US20200328691A1
公开(公告)日：2020-10-15
申请号：US16381366
申请日：2019-04-11
Applicant: Hamilton Sundstrand Corporation
Abstract: Provided are embodiments including a system for balancing DC bus capacitors for converters. The system can include a first 3-phase system, and a second 3-phase system, wherein the first 3-phase system and the second 3-phase system are operably connected. The system can also include one or more DC capacitors coupled to the first 3-phase system and the second 3-phase system, and a controller, wherein the controller is configured to control switching of the first 3-phase system and the second 3-phase system so that an output of second 3-phase system is delayed 60 degrees from an output of the first 3-phase system. Also, embodiments are provided for a method for balancing DC bus capacitors.
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