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公开(公告)号：US20230335332A1
公开(公告)日：2023-10-19
申请号：US18094516
申请日：2023-01-09
申请人： ATUM CO., LTD.
发明人： Taeksoo HAN , Hyunchuel KIM
CPC分类号： H01F27/306 , H01F30/06 , H01F27/324 , H01F27/2847 , H01F41/12 , B60L53/20 , B60L2210/10
摘要： A transformer for an LDC of an electric vehicle includes: a plate-type primary coil for receiving current from the high voltage battery of the electric vehicle; a lower secondary coil element provided under the primary coil to supply an induced current induced by the primary coil to the electrical components of the electric vehicle; and an upper secondary coil element provided on the primary coil to supply an induced current induced by the primary coil to the electrical components of the electric vehicle, and according to this, there is an advantage of reducing the height and size of a product.
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公开(公告)号：US11763984B2
公开(公告)日：2023-09-19
申请号：US17845609
申请日：2022-06-21
发明人： Ionel Jitaru
IPC分类号： H01F30/02 , H01F30/06 , H01F27/245
CPC分类号： H01F30/06 , H01F27/245
摘要： A magnetic and electrical circuit element including magnetic-flux-conducting posts, and a multi-layer structure formed with an electrically-conductive material. The multi-layer structure includes multiple layers forming a stack of layers along a length of the posts, said multi-layer structure configured as primary and secondary windings of a transformer. The primary winding is embedded in the multi-layer structure and wound around the magnetic-flux-conducting posts in such a way that a magnetic field induced in each of the magnetic-flux-conducting posts has a magnetic field polarity opposite to a polarity of the respective magnetic field of the magnetic-flux-conducting post adjacent the respective magnetic-flux-conducting post. Around each of the magnetic-flux-conducting posts, there is a respective one of the secondary windings connected to a semiconductor device. The magnetic-flux-conducting posts are connected magnetically by continuous magnetic-flux-conducting plates, each of which is shaped to ensure a continuous flow of the magnetic field successively through adjacent magnetic-flux-conducting posts.
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公开(公告)号：US11610723B2
公开(公告)日：2023-03-21
申请号：US16814251
申请日：2020-03-10
申请人： TDK CORPORATION
发明人： Kazuki Ishizawa , Ken Takayama , Masayoshi Ono , Jyunya Hiura
摘要： A transformer includes a primary winding and a secondary winding, which are flat, and a magnetic core that has a middle leg that passes through the primary and secondary windings, a first core that is connected to one end along the length direction of the middle leg, and a second core that is connected to the other end along the length direction. A first wall surface on the side of the first core where the middle leg is positioned and a second wall surface on the side of the second core which faces the first wall surface are formed so as to be parallel, the primary winding is fixed to the first wall surface, the secondary winding is fixed to the second wall surface, and the distance between the primary winding and the secondary winding is kept constant.
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公开(公告)号：US11367565B2
公开(公告)日：2022-06-21
申请号：US17189096
申请日：2021-03-01
发明人： Ionel Jitaru
IPC分类号： H01F30/02 , H01F30/06 , H01F27/245
摘要： A magnetic and electrical circuit element including magnetic-flux-conducting posts, and a multi-layer structure formed with an electrically-conductive material. The multi-layer structure includes multiple layers forming a stack of layers along a length of the posts, said multi-layer structure configured as primary and secondary windings of a transformer. The primary winding is embedded in the multi-layer structure and wound around the magnetic-flux-conducting posts in such a way that a magnetic field induced in each of the magnetic-flux-conducting posts has a magnetic field polarity opposite to a polarity of the respective magnetic field of the magnetic-flux-conducting post adjacent the respective magnetic-flux-conducting post. Around each of the magnetic-flux-conducting posts, there is a respective one of the secondary windings connected to a semiconductor device. The magnetic-flux-conducting posts are connected magnetically by continuous magnetic-flux-conducting plates, each of which is shaped to ensure a continuous flow of the magnetic field successively through adjacent magnetic-flux-conducting posts.
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5.发明授权公开(公告)号：US11328857B2
公开(公告)日：2022-05-10
申请号：US17482502
申请日：2021-09-23
发明人： Guoen Cao , Yibo Wang , Yong Zhao , Jianhong Guo
摘要： A high-voltage isolation withstand planar transformer and its high-voltage insulation method are provided. An insulating medium is provided between low-voltage windings and high-voltage windings. High-frequency current flows through the windings and generates a high-frequency alternating magnetic field to achieve isolated energy transmission. The low-voltage windings are connected to low-voltage side connection terminals, and the high-voltage windings are connected to high-voltage side connection terminals through a high-voltage winding leading-out foil. An annular hollow part of the low-voltage windings and the high-voltage windings is provided with a magnetic core. A stress grading method is provided to control the distribution of the electric field around the high-voltage winding leading-out foil. A voltage-balancing element group provides a voltage potential with a gradient change between the high-voltage winding leading-out foil and the low-voltage windings. The new transformer has small size, high power density and low cost.
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公开(公告)号：US11136985B2
公开(公告)日：2021-10-05
申请号：US16558102
申请日：2019-08-31
申请人： Baker Hughes
发明人： Blayne Prine , Gordon Besser , Gary Williams , Craig Cooper , Vernon Chronister , Jeremy Hillshafer
摘要： A transformer configured for use in connection with a variable speed motor drive includes primary windings and secondary windings. The secondary windings are configured as wye-windings and a ground lead and a plurality of phase leads. The transformer includes a ferrite blocking circuit connected to the ground lead.
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公开(公告)号：US11062840B2
公开(公告)日：2021-07-13
申请号：US15763017
申请日：2016-08-26
申请人： Shanshan Dai
发明人： Shanshan Dai , Shizhu Zhu
IPC分类号： H01F27/34 , H01F27/24 , H01F27/28 , H01F30/06 , H02K1/14 , H02K1/27 , H02K3/04 , H02K41/02 , H01F30/16 , H02K1/17 , H02K41/03
摘要： An alternating hybrid excitation assembly and its application to a rotary motor, linear motor and transformer, including: an even number of iron cores and a plurality of magnetic isolation layers arranged between, forming a loop, each core includes one or two notches wherein permanent magnets are inlaid, the two magnetic pole faces are attached to two opposite sides of the notch of the corresponding core, and a gap is reserved between one side face of each magnet and the side edge of the notch of the core; the magnets have opposite magnetic polarity directions, and an excitation coil surrounds the cores. A permanent magnetic potential and an excitation magnetic potential are superimposed to form an alternating hybrid excitation magnetic field, and thus electromagnetic energy efficiency is improved. Further, embodiments of the alternating hybrid excitation assembly applied to the rotary motor, the linear motor and the transformer.
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公开(公告)号：US20200294708A1
公开(公告)日：2020-09-17
申请号：US16814251
申请日：2020-03-10
申请人： TDK CORPORATION
发明人： Kazuki ISHIZAWA , Ken TAKAYAMA , Masayoshi ONO , Jyunya HIURA
摘要： A transformer includes a primary winding and a secondary winding, which are flat, and a magnetic core that has a middle leg that passes through the primary and secondary windings, a first core that is connected to one end along the length direction of the middle leg, and a second core that is connected to the other end along the length direction. A first wall surface on the side of the first core where the middle leg is positioned and a second wall surface on the side of the second core which faces the first wall surface are formed so as to be parallel, the primary winding is fixed to the first wall surface, the secondary winding is fixed to the second wall surface, and the distance between the primary winding and the secondary winding is kept constant.
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公开(公告)号：US10607771B2
公开(公告)日：2020-03-31
申请号：US15345117
申请日：2016-11-07
申请人： Analogic Corporation
发明人： John Dobbs
IPC分类号： H01F38/18 , H01F27/36 , H01F30/06 , A61B6/00 , A61B6/03 , H02J50/70 , H02J7/00 , H02J50/10 , H01F30/16
摘要： Axisymmetric solid of revolution derivable from section at FIG. 5 is generally toroidal with electric current(s) in windings preferably flowing circumferentially along major circle(s) during power coupling device operation. Current(s) in windings, current(s) in half-shields, and the volume of space swept out by shield airgap(s) emerge from plane of paper perpendicularly at FIG. 5, but as these emerge therefrom, they curve to follow toroidal major circle(s). Core regions preferably shunt and align magnetic flux such that magnetic field lines escape therefrom primarily only in region(s) of core airgap(s) and such that magnetic flux loops lie in planes of toroidal minor circle(s). Half-shield(s) preferably have electrically conductive material(s) distributed therein as is sufficient to substantially cancel magnetic flux lines impinging thereon before effects of such impinging magnetic flux lines would reach shield airgap(s) and/or outer surface(s) of half-shields.
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公开(公告)号：US10593463B2
公开(公告)日：2020-03-17
申请号：US15940290
申请日：2018-03-29
申请人： THE BOEING COMPANY
发明人： James Leo Peck, Jr.
摘要： A electromagnetic device may include a core in which a magnetic flux is generable and an opening through the core. A primary conductor winding may be received in the opening and extend through the core. A primary electrical current signal flowing through the primary conductor winding generates a magnetic field about the primary conductor winding and a first magnetic flux flow in the core. A secondary conductor winding may be received in the opening and extend through the core. A first modular conductor winding may extend through the opening and encircle a first outer core portion of the core. A first modulation signal flowing through the first modular conductor winding modulates the primary electrical current signal to provide a modulated output current signal at an output of the secondary conductor winding.
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