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公开(公告)号：US11972888B2
公开(公告)日：2024-04-30
申请号：US16952067
申请日：2020-11-18
发明人： Moon Young Lee , Baoming Ge , Fan Wang , Lihua Chen
CPC分类号： H01F21/12 , B60K6/40 , H01F27/12 , H01F27/322 , H02K9/00
摘要： An inductor for a converter of an electric machine includes a core defining a channel configured to receive transmission fluid on an outer surface of the core. Coils made of windings are wrapped on the core. The windings enclose an open side of the channel to define an oil flow passage, wherein oil flowing through the oil flow passage is in direct contact with both the windings and the core to absorb heat from the windings and the core.
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公开(公告)号：US11967447B2
公开(公告)日：2024-04-23
申请号：US17274932
申请日：2018-11-19
发明人： Ryoki Nishimura
CPC分类号： H01F27/12 , H01F27/025 , H01F27/24 , H01F27/28
摘要： A stationary induction apparatus includes a core, a winding, a tank, a refrigerant, a radiator, and a unit cooler. The winding is wound around the core as a central axis. The tank contains the core and the winding. The refrigerant is filled into the tank. The radiator is mounted to the tank and includes a first heat exchange unit capable of naturally air-cooling the refrigerant that is naturally convecting while allowing the refrigerant to flow therethrough. The unit cooler is mounted to the tank and includes a pump to forcibly circulate the refrigerant, and a second heat exchange unit to forcibly air-cool the refrigerant that is being forcibly circulated while allowing the refrigerant to flow therethrough.
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公开(公告)号：US11820951B2
公开(公告)日：2023-11-21
申请号：US16982215
申请日：2019-03-20
发明人： Todd L. Kurth , Kevin R. Wirtz
IPC分类号： C10M137/02 , H01B3/22 , H01B3/20 , C10M101/00 , C10M105/00 , C10M105/74 , C10M111/02 , H01G4/018 , H01G4/04 , H01G9/07 , C10M169/04 , C10N40/16 , H01F27/12 , H01F27/00 , C10N30/10
CPC分类号： C10M137/02 , C10M101/00 , C10M105/00 , C10M105/74 , C10M111/02 , C10M169/04 , H01B3/20 , H01B3/22 , H01G4/018 , H01G4/04 , H01G9/07 , C10M2223/049 , C10N2030/10 , C10N2040/16 , H01F27/00 , H01F27/125
摘要： A dielectric fluid is provided comprising a natural bio-sourced oil and one or more compounds selected from the group consisting of phosphite compounds. It has been discovered that addition of one or more compounds selected from the group consisting of phosphite compounds to dielectric fluids comprising oil impart a stabilizing effect that reduces, inhibits or prevents formation of stray gases in the dielectric fluid during ordinary use.
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公开(公告)号：US11585692B2
公开(公告)日：2023-02-21
申请号：US16773181
申请日：2020-01-27
发明人： Peter Kiesel , Ajay Raghavan , Todd Karin , Qiushu Chen , Malcolm G. Smith, Jr. , Robert T. Stinson, IV
IPC分类号： G01H9/00 , G01H13/00 , H01F27/14 , G01L1/24 , G01D5/353 , G01K11/3206 , H01F27/12 , H01F27/40
摘要： A sensor system includes a sensor network comprising at least one optical fiber having one or more optical sensors. At least one of the optical sensors is arranged to sense vibration of an electrical device and to produce a time variation in light output in response to the vibration. A detector generates an electrical time domain signal in response to the time variation in light output. An analyzer acquires a snapshot frequency component signal which comprises one or more time varying signals of frequency components of the time domain signal over a data acquisition time period. The analyzer detects a condition of the electrical device based on the snapshot frequency component signal.
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公开(公告)号：US11435337B2
公开(公告)日：2022-09-06
申请号：US16405205
申请日：2019-05-07
发明人： Shafiqur Rehman , Luai M. Alhems , Ramsey Jadim
摘要： A system, device, and a method for determining a compound content in transformer oil are provided. The method includes positioning a syringe filled with transformer oil in the device to transfer the oil to a vial using the device. The device includes a stand, a threaded rod, a handle, a disc, and a syringe holder. The threaded rod is movable in a vertical direction by rotation of the handle and is configured to apply pressure via the disc on a plunger of the syringe positioned in the syringe holder to maintain an airtight connection between the vial and the device. The compound content is determined using a gas chromatograph by analyzing an aliquot extracted from a headspace gas of the vial.
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公开(公告)号：US11355273B2
公开(公告)日：2022-06-07
申请号：US16492805
申请日：2018-03-07
发明人： Antonio Nogues Barrieras , Rafael Murillo , Martín Carlos Roy , Lorena Cebrian , Luis Sanchez Lago
摘要： A non-liquid immersed transformer including a magnetic core having a winding axis and at least two coil windings wound around the magnetic core along the winding axis. One or more cooling tubes made of dielectric material are arranged inside at least one of the coil windings to cool down the coil winding using dielectric fluid flowing through the dielectric cooling tubes. Each cooling tube is wound continuously forming one or more complete loops around the core.
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公开(公告)号：US20220020520A1
公开(公告)日：2022-01-20
申请号：US17429081
申请日：2019-04-25
发明人： Shiki HAYAMIZU , Yuichiro ISHIDA
摘要： A first plate-like portion is provided with a plurality of first holes extending therethrough in a central axis direction. A second plate-like portion is provided with a plurality of second holes extending therethrough in the central axis direction. The plurality of first holes, the plurality of second holes, a first notch and a second notch overlap one another, to thereby form a flow path which connects one side and the other side of each of a plurality of insulating plates and through which insulating oil can flow in a first direction.
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公开(公告)号：US20210065958A1
公开(公告)日：2021-03-04
申请号：US16556117
申请日：2019-08-29
发明人： Myung Ki SUNG , Wanfeng LI , Leyi ZHU
摘要： A power inductor includes a housing and a magnetic core disposed in the housing. The core includes a first segment and a second segment spaced apart from each other to define a gap. The first and second segments are supported in the housing such that the they are movable relative to each other to increase and decrease the size of the gap. A fluid having a positive thermal expansion coefficient is disposed in the housing such that expansion and contraction of the fluid due to change in temperature increases and decreases the gap, respectively.
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公开(公告)号：US10935414B2
公开(公告)日：2021-03-02
申请号：US16230796
申请日：2018-12-21
发明人： Hiromu Shiota , Shota Ikeda , Midori Yamashita , Yosuke Takai , Kazuaki Ito
摘要： A liquid level indicating device includes a moving member which is arranged in a liquid tank storing a cooling liquid and moves vertically in conjunction with variation in a liquid level of the cooling liquid, a string member having one end portion connected to the moving member, the string member being configured to be bendable and non-extendable in a longitudinal direction, an indicator connected to the other end portion of the string member and which indicates a height position of the moving member as a remaining amount of the cooling liquid by operating in conjunction with movement of the moving member through the string member, and a tube member which is configured to be bendable and non-extendable in the longitudinal direction, has the string member passed therethrough, and connects the liquid tank and the indicator.
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公开(公告)号：US20210050138A1
公开(公告)日：2021-02-18
申请号：US16542917
申请日：2019-08-16
发明人： Debabrata Pal , Ashutosh Joshi , Mark W. Metzler , Eric A. Carter
摘要： A transformer assembly includes a housing, a core within an interior of the housing, and at least one winding positioned around the core. The at least one winding and the core are mounted to the housing with potting material. At least a portion of a fluid circuit is defined within at least one wall of the housing. The at least the portion of the fluid circuit is defined through an opening in the at least one wall of the housing in fluid communication with the interior of the housing. A transformer assembly includes a housing, a core within an interior of the housing, at least one winding positioned around the core, and a fluid circuit defined at least partially within at least one wall of the housing being configured such that heat is transferred to the fluid from at least one of the core and the at least one winding.
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