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1.发明申请公开(公告)号：US20190149007A1
公开(公告)日：2019-05-16
申请号：US16227868
申请日：2018-12-20
Inventor： Kotaro MURA , Kodai USHIWATA , Toshihiro TSUDA , Tetsuo YOSHIMITSU
Abstract: A producing method for an electrical insulating structure that covers an outer surface of a to-be-insulated object is provided. The method comprises: a taping step of winding a main insulation tape on outside of the to-be-insulated object; a spraying step of spraying nanoparticles onto the outer surface of the wound main insulation tape; a vacuum drawing step of vacuum drawing the tape-wound to-be-insulated object; and an impregnation step of injecting a nanoparticle-containing impregnating macromolecular polymer in which nanoparticles have been kneaded to impregnate the to-be-insulated object therewith. In the spraying step, microcapsules, which contain the nanoparticles and are able to release the nanoparticles before the impregnation step, are sprayed.
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Patent Agency Ranking
2.发明申请公开(公告)号：US20190149008A1
公开(公告)日：2019-05-16
申请号：US16227904
申请日：2018-12-20
Inventor： Kotaro MURA , Shinsuke KIKUTA , Toshihiro TSUDA , Tetsuo YOSHIMITSU
Abstract: A producing method for an electrical insulating structure that covers an outer surface of a to-be-insulated object, comprises: a taping step in which a main insulation tape is wound on the outside of the to-be-insulated object to forma main insulated part; a vacuum drawing step in which the tape-wound to-be-insulated object is subjected to vacuum drawing, after the taping step; and an impregnation step in which a nanoparticle-containing impregnating macromolecular polymer, in which nanoparticles have been kneaded, is injected to impregnate the main insulated part therewith, after the vacuum drawing step.
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公开(公告)号：US20190149006A1
公开(公告)日：2019-05-16
申请号：US16227840
申请日：2018-12-20
Inventor： Kotaro MURA , Masahiro TAKENO , Toshihiro TSUDA , Tetsuo YOSHIMITSU
Abstract: A method for producing a corona discharge-preventing structure for covering the outer surface of a to-be-insulated object is presented. The method comprises: a tape producing step of producing a corona discharge-preventing tape including a macromolecular polymer added with electrically conductive powders and non-electrically conductive nanoparticles; a main insulating step of winding a main insulating tape around the to-be-insulated object; and a winding step of winding the corona discharge-preventing tape around the outer surface of the to-be-insulated object around which the main insulating tape has been wound.
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公开(公告)号：US20230399504A1
公开(公告)日：2023-12-14
申请号：US18043053
申请日：2021-04-16
Inventor： Yu YAMASHITA , Tetsuo YOSHIMITSU , Kotaro MURA , Takahiro IMAI
CPC classification number: C08L63/00 , C08K5/06 , C08G59/42 , C08K3/22 , C08J5/249 , B82Y30/00 , C08K2201/003 , C08K2201/011 , C08L2201/56 , C08L2203/202 , C08J2363/00 , H01B3/40
Abstract: A resin producing method is a method of producing a resin with which an insulating structure formed on an outer peripheral portion of a conductor is impregnated. The resin producing method includes a dispersion liquid mixing step of mixing an epoxy resin and a dispersion liquid in which a nanofiller is dispersed in a reactive diluent that reduces a viscosity of the epoxy resin by reacting with the epoxy resin, and a curing agent mixing step of mixing a composition produced by the dispersion liquid mixing step, with a curing agent that cures the epoxy resin. The epoxy resin includes, for example, an alicyclic epoxy resin.
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5.发明申请公开(公告)号：US20190149009A1
公开(公告)日：2019-05-16
申请号：US16227933
申请日：2018-12-20
Inventor： Kotaro MURA , Shinsuke KIKUTA , Toshihiro TSUDA , Tetsuo YOSHIMITSU
Abstract: A producing method is for an electrical insulating structure covering an outer surface of a to-be-insulated object. The electrical insulating structure producing method comprises: a sheet production step of producing a main insulating sheet in which nanoparticles have been mixed; a cutting step in which the main insulating sheet is cut into main insulation tapes; a taping step of winding each of main insulation tapes on outside of the to-be-insulated object to produce a tape-wound to-be-insulated object in which a main insulated part is formed; a vacuum drawing step of vacuum drawing the tape-wound to-be-insulated object; an impregnation step of injecting a impregnating macromolecular polymer to impregnate the main insulated part in the tape-wound to-be-insulated object, and a solidifying step of raising the temperature of the insulated part to solidify the macromolecular polymer containing the nanoparticles.
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公开(公告)号：US20180292342A1
公开(公告)日：2018-10-11
申请号：US16008525
申请日：2018-06-14
Inventor： Kotaro MURA , Tetsuo YOSHIMITSU , Toshihiro TSUDA
Abstract: This electrical tree test method is a method for testing for electrical trees in an insulating member including a mica insulation applied to an electrical conductor. The method comprises: an assembly setting step of setting an electrode setting assembly to the outside of the mica insulation; an impregnation step of impregnating the mica insulation with synthetic resin after the assembly setting step; a removal step of removing components of the electrode setting assembly, except an electrode structure, after the impregnation step; a power supply connecting step of connecting, after the removal step, the electrical conductor and the electrode structure to a power supply in order to apply a voltage between the electrical conductor and the electrode structure; and a voltage applying step of applying a voltage between the electrical conductor and the electrode structure, after the power supply connecting step.
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