公开(公告)号：EP4394816A1

公开(公告)日：2024-07-03

申请号：EP22885257.0

申请日：2022-08-01

Applicant: Hengdian Group DMEGC Magnetics Co., Ltd.

Inventor： WANG, Xiaoyun ,  JIN, Tianming

IPC: H01F27/02 ,  H01F27/25 ,  H01F27/26 ,  H01F38/30 ,  H01F41/00

Abstract: Disclosed in the present disclosure are an anti-direct-current nanocrystalline double-magnetic-core current transformer magnetic core and a manufacturing method therefor. The anti-direct-current nanocrystalline double-magnetic-core current transformer magnetic core comprises a first nanocrystalline magnetic core, a second nanocrystalline magnetic core, and an annular packaging shell; and the first nanocrystalline magnetic core is sleeved at the outer side of the second nanocrystalline magnetic core, and the first nanocrystalline magnetic core and the second nanocrystalline magnetic core are coaxially arranged. The manufacturing method for the anti-direct-current nanocrystalline double-magnetic-core current transformer magnetic core comprises the following step: sequentially mounting the first nanocrystalline magnetic core and the second nanocrystalline magnetic core into the packaging shell to obtain the anti-direct-current nanocrystalline double-magnetic-core current transformer magnetic core. According to the anti-direct-current nanocrystalline double-magnetic-core current transformer magnetic core provided by the present application, two nanocrystalline magnetic cores are comprised in the anti-direct-current nanocrystalline double-magnetic-core current transformer magnetic core, and the magnetic cores are excellent in stability, good in linearity, high in sensitivity, and large in the adjustment range of magnetic conductivity. In addition, the manufacturing method provided by the present application is simple and low in processing cost.

公开(公告)号：EP3567617B1

公开(公告)日：2024-07-03

申请号：EP19173433.4

申请日：2019-05-09

IPC: H01F27/02 ,  H01F38/14 ,  H01J7/02 ,  B60L53/12 ,  H01F27/36 ,  H02J50/10 ,  H02J7/00 ,  H02J50/70 ,  B60L53/302

CPC classification number: H01F27/02 ,  H01F38/14 ,  H02J50/10 ,  B60L53/12 ,  H02J7/0042 ,  B60L53/302 ,  H02J50/70 ,  Y02T10/7072 ,  Y02T10/70 ,  Y02T90/14 ,  Y02T90/12 ,  H01F27/366

公开(公告)号：EP4390985A1

公开(公告)日：2024-06-26

申请号：EP22383252.8

申请日：2022-12-21

Applicant: Premo, SL

Inventor： CUESTA CANO, Juan Miguel ,  PÉREZ CAMERO, Paula ,  ROJAS CUEVAS, Antonio ,  CAÑETE CABEZA, Claudio ,  NAVARRO PÉREZ, Francisco Ezequiel

IPC: H01F17/06 ,  H01F27/02 ,  H01F27/22 ,  H01F27/38 ,  H01F27/40 ,  H01F27/28 ,  H01F17/04

CPC classification number: H01F2017/009320130101 ,  H01F17/062 ,  H01F27/022 ,  H01F27/22 ,  H01F27/40 ,  H01F27/38 ,  H01F2017/04820130101 ,  H01F27/2895

Abstract: An electromagnetic filter for operating in common and differential mode is provided. The filter comprises a toroidal-like magnetic core; first and second separated coils wound around the magnetic core, the first and second coils and the magnetic core being configured to provide a common mode filter. The filter also has a third coil that surrounds the magnetic core and the first and second coils and arranged around a Z axis that is coaxial with an inner hollow part of the magnetic core, the third coil being configured to provide a filter operating in differential mode. Two sheets are also arranged between opposite external faces of a capacitor to thermally isolate the capacitor from the coils, the capacitor and sheets being arranged inside the inner hollow part. A layer of a thermal conductive magnetic compound encloses all the elements to increase leakage inductance and to enclose a magnetic field generated by the third coil.

公开(公告)号：EP3888105B1

公开(公告)日：2024-06-12

申请号：EP19789690.5

申请日：2019-10-22

IPC: H01F27/02 ,  H01F27/20 ,  H05K7/20

CPC classification number: H01F27/025 ,  H01F27/20 ,  H01F2027/32920130101 ,  H01F27/322

公开(公告)号：EP4379758A1

公开(公告)日：2024-06-05

申请号：EP22210860.7

申请日：2022-12-01

Applicant: Hitachi Energy Ltd

Inventor： WEDIN, Erik Carl ,  ASTRAND, Peter ,  VIKSTEN, Mattias ,  LYSELL, Erik

IPC: H01F27/00 ,  H01F27/02 ,  H01F27/06 ,  H01F30/10

CPC classification number: H01F27/002 ,  H01F27/02 ,  H01F27/06 ,  H01F30/10

Abstract: A method for handling transportation and assembling of a single phase transformer. The single phase transformer is divided into two or more active parts (14). The two or more active parts (14) are transported to a site in at least two separate tanks (10). The single phase transformer is than assembled by connecting the tanks (10) together electrically at the site, wherein the tanks (10) are connected electrically by one or more leads.

公开(公告)号：EP4362050A1

公开(公告)日：2024-05-01

申请号：EP22383032.4

申请日：2022-10-26

Applicant: Premo, SL

Inventor： FERNÁNDEZ DE LA FUENTE, José Ramón ,  CAÑETE CABEZA, Claudio ,  ROJAS CUEVAS, Antonio ,  NAVARRO PÉREZ, Francisco Ezequiel

IPC: H01F27/02 ,  H01F27/04 ,  H01F27/26 ,  H01F41/00

CPC classification number: H01F27/266 ,  H01F27/022 ,  H01F27/027 ,  H01F27/04 ,  H01F41/005

Abstract: A waterproof electromagnetic device and production method thereof, the waterproof electromagnetic device comprising a magnetic core (10) surrounded by at least one coil (20); an electronic circuit board (30) including at least connection pins (31) electrically connected to the at least one coil (20); and an enclosure (40) overmolded on a waterproof manner surrounding the magnetic core (10), the at least one coil (20) and the electronic circuit board (30); wherein the magnetic core (10) further includes several protrusions (11) projecting from the magnetic core (10) towards an external surface of the enclosure (40), so that a centering of the magnetic core (10) within the enclosure (40) is provided during the overmoulding operation.

公开(公告)号：EP4359743A1

公开(公告)日：2024-05-01

申请号：EP22826914.8

申请日：2022-06-17

Applicant: IFD Technologies Inc.

Inventor： SCHNEIDER, Mathieu Garret ,  TULINE, Benjamin Donald Cormac ,  PAULGAARD, Michael Stephen ,  LANDECKER, James Thomas Isaac ,  SILGARDO, Adrian Bernard ,  VAN HORN, Jeremy Michael ,  CHISHOLM, John Paul ,  SIEBERT-TIMMER, Audrey Joy Corrine ,  LIN, Yen-you ,  ZUIDERVEEN, Thomas Jacob ,  TUEY, Amanda Mahn Hah

IPC: G01K3/14 ,  G01K15/00 ,  H01F27/02 ,  H05K5/02

CPC classification number: G01K3/14 ,  G01K7/427 ,  H01F27/402 ,  H01F2027/40620130101

公开(公告)号：EP4006928B1

公开(公告)日：2024-04-10

申请号：EP21206837.3

申请日：2018-11-05

Inventor： HU, Yanjun ,  MIAO, Zunqing ,  WANG, Chunfu ,  ZHAO, Weiyang

IPC: H01F27/28 ,  H01F27/32 ,  H01F27/29 ,  H01F27/02 ,  H02M1/00

公开(公告)号：EP4325536A2

公开(公告)日：2024-02-21

申请号：EP23188066.7

申请日：2023-07-27

Applicant: Vacuumschmelze GmbH & Co. KG

Inventor： SCHULZE, Axel ,  HUNDT, Harald ,  BINKOFSKI, Johannes ,  AUER, Alfred ,  POLAK, Christian

IPC: H01F41/02 ,  H01F3/04 ,  H01F1/147 ,  H01F1/153 ,  H01F27/02 ,  H01F27/25 ,  H01F27/26 ,  H01F27/32

Abstract: Es wird im Folgenden eine Vorrichtung beschrieben, die gemäß einem Ausführungsbeispiel einen Träger, der entlang einer Längsachse eine durchgehende Öffnung aufweist, sowie mindestens ein um den Träger zu einem Ringbandkern gewickeltes weichmagnetisches Band aufweist. Das Band ist dabei direkt auf den Träger gewickelt, sodass zwischen dem Ringbandkern und dem Träger kein Spiel vorhanden ist. Der Träger kann folglich als Teil des Gehäuses des Ringbandkerns dienen.

公开(公告)号：EP4322186A2

公开(公告)日：2024-02-14

申请号：EP23188759.7

申请日：2023-07-31

Applicant: Eaton Intelligent Power Limited

Inventor： NOJIMA, Geraldo ,  WILKIE, Eddie

IPC: H01F5/02 ,  H01F27/02 ,  H01F27/10 ,  H01F27/28 ,  H01F27/30 ,  H01F27/32

Abstract: An apparatus includes a core and a helical frame coaxial with a segment of the core and having first and second major surfaces on opposite sides of the helical frame and each normal to a surface of the segment. At least one helical coil conforms to at least one of the first and second major surfaces. In some embodiments, the at least one helical coil may include first and second helical coils conforming to respective ones of the first and second major surfaces.