Title:
平行な巻線を有する中周波変圧器
Document Type and Number:
Japanese Patent JP7448746
Kind Code:
B2
Abstract:
A transformer, in particular a medium frequency transformer for a resonant DC/DC converter or a dual active bridge DC/DC converter, comprising,b) a core, in particular a core having an air gap;c) a first coil surrounding a first section of the core;d) an electric insulation, in particular a medium voltage electric insulation, surrounding the first coil;e) wherein the first coil comprises a plurality of M first windings;f) each of the plurality of M first windings comprisingi) a first termination and a second termination,ii) a conductor wound around the first portion of the core in at least one turn between the first and second termination,g) a plurality of M first terminals provided outside of the insulation, each of said first terminals connected to a different one of the first terminations by one of a plurality of M first connectors, thus connecting each first terminal to a respective first termination; the transformer further comprising:h) a first channel extending from an outside of the electric insulation into and at least partially through said electric insulation, wherein the plurality of M first connectors extend through the first channel; whereini) the plurality of M first connectors are insulated against one another by means of a low voltage insulation within the channel, and wherein preferably no medium voltage and/or high voltage insulation is present between any two of the first connectors.
Inventors:
Drophenic, Ube
Riedel, Gernot
Gladinger, Thomas Bernhardt
Riedel, Gernot
Gladinger, Thomas Bernhardt
Application Number:
JP2022535683A
Publication Date:
March 13, 2024
Filing Date:
December 04, 2020
Export Citation:
Assignee:
HITACHI ENERGY LTD
International Classes:
H01F30/10; H01F27/04; H01F27/28; H02M3/28
Domestic Patent References:
| JP2015088758A | ||||
| JP2016510948A | ||||
| JP2001275276A | ||||
| JP2009254118A | ||||
| JP2012231616A |
Foreign References:
| CN102843041A |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office