EP3707736A1 - Transformator zur verwendung in einem schienenfahrzeug - Google Patents
Transformator zur verwendung in einem schienenfahrzeugInfo
- Publication number
- EP3707736A1 EP3707736A1 EP18799765.5A EP18799765A EP3707736A1 EP 3707736 A1 EP3707736 A1 EP 3707736A1 EP 18799765 A EP18799765 A EP 18799765A EP 3707736 A1 EP3707736 A1 EP 3707736A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cross
- core
- sectional area
- transformer
- segments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/10—Single-phase transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
Definitions
- the invention relates to a transformer for use in a
- Rail vehicle and / or for railway applications comprising a core, which is at least partially surrounded by at least one coil.
- Conventional traction transformers typically use a core composed of multiple laminations. This creates several bumps and joints. If four laminated cores are used, usually four bumps and joints occur.
- the core sheets used to make the core are stacked into packages and built into each other nested.
- a coil is dictated by the geometry of the bobbin.
- a round bobbin leads to a substantially round coil
- a square bobbin leads to a more angular coil.
- Conventionally available traction transformers are usually more circular or approximately rectangular geometries, the respective geometry is closely related to the particular manufacturing process used. In certain applications, however, a rather round or approximately rectangular geometry can be disadvantageous.
- the invention is therefore based on the object to provide a transformer in which the geometry of a coil is variable as possible selectable. According to the invention the above object is achieved by a transformer with the features of claim 1.
- the above-mentioned transformer is characterized in that the core is made of individual segments, wherein the total cross-sectional area of the core is greater than or equal to the sum of the individual cross-sectional areas of the segments and wherein at least two individual cross-sectional areas in their size and / or their geometric shape from each other and / or each of the
- the core of the transformer is designed appropriately with regard to its weight, its mechanical properties and its geometry. It has also been recognized that there is a need for a particular core for railway application transformers, as it typically uses cores that are also used in transformers in industrial plants.
- both the coils and the housing are easily modifiable and adaptable to web applications.
- the geometries of the coil cross-sectional areas are easily adaptable to the geometry of the housing.
- the structure of the transformer can be made more compact than before. With a more compact transformer, larger voltage and power ranges can be covered.
- the segments are configured as core lamination packages.
- a core can be made in the usual way. It can be used with different, but also with the same cross-sectional areas of laminated core packages to the
- a single cross-sectional area preferably shows the geometry of a square, a rectangle, a trapezoid, a circle segment or another geometric surface with at least one straight side.
- Segments can be created particularly well with their straight sides to other segments with straight sides. According to another preferred embodiment of the invention shows a
- a coil cross-sectional area in addition to round areas in which the winding undergoes a change in direction, at least one oblique side, which is inclined to at least two parallel sides.
- a coil under a slope in particular a roof slope of a rail vehicle, can be arranged.
- a housing surrounds the core and at least two coils.
- the housing has a housing cross-sectional area which is at least partially trapezoidal
- the housing is in a rail vehicle or a
- a rail vehicle preferably comprises a transformer of the type described here.
- the transformer is preferably designed as a traction transformer.
- Fig. 1 is a sectional view of a conventionally manufactured transformer for
- Fig. 2 shows a transformer, wherein the geometries of
- FIG. 3 is a schematic sectional view of core lamination packets, wherein
- Fig. 1 shows a transformer of the prior art
- FIG. 2 shows a transformer 1 for use in a railway vehicle and / or for railway applications, comprising a core 2, which at least
- the core 2 is made of individual segments, wherein the
- Total cross-sectional area 2c of the core is greater than the sum of
- Single cross-sectional areas 2a, 2b of the segments are shown in terms of their individual cross-sectional areas 2a, 2b in the upper part of Fig. 3.
- the two individual cross-sectional areas 2a, 2b differ in their size from each other, so deviate from each other in size. Their surfaces are different in size.
- the two individual cross-sectional areas 2a, 2b also differ from each other in their geometric shape and therefore also differ in terms of their
- rectangles different aspect ratios On the left is a longer rectangle, on the right is a squat rectangle.
- the two individual cross-sectional areas 2a, 2b also deviate in their geometric form from the total cross-sectional area 2c, which is hexagonal, has a stepped indentation and is not formed as a rectangle.
- the segments are designed as core lamination packages. These form the core 2.
- FIG. 3 shows that three individual cross-sectional areas 2a, 2b, 2ab each show the geometry of a rectangle.
- Fig. 2 shows that a coil cross-sectional area 3a in addition to three round areas 6, in which the winding undergoes a change in direction by 90 °, at least one inclined side 7, which is inclined to at least two parallel sides 5a, 5b.
- a housing 8 surrounds the core 2 and at least two coils 3, 4, which surround the core 2.
- the housing 8 has a housing cross-sectional area 8a, which is designed in sections, namely in the upper portion of the housing 8, trapezoidal.
- a work space 9 is shown schematically, which can be obtained by the configuration of the core 2 with respect to the embodiment of the prior art shown in FIG. Two, three or more than three segments may be used to construct the core 2. The segments can be connected to each other in the usual way.
- the total cross-sectional area 2c and the individual cross-sectional areas 2a, 2b are oriented orthogonal to the direction of the magnetic flux through the core 2 and / or to the longitudinal axis of a coil 3, 4.
- An unillustrated rail vehicle comprises the transformer 1.
- 5b is the upper parallel side of FIG. 3a
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017126473.6A DE102017126473A1 (de) | 2017-11-10 | 2017-11-10 | Transformator zur Verwendung in einem Schienenfahrzeug |
| PCT/EP2018/080465 WO2019092014A1 (de) | 2017-11-10 | 2018-11-07 | Transformator zur verwendung in einem schienenfahrzeug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3707736A1 true EP3707736A1 (de) | 2020-09-16 |
| EP3707736B1 EP3707736B1 (de) | 2025-09-10 |
Family
ID=64184107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18799765.5A Active EP3707736B1 (de) | 2017-11-10 | 2018-11-07 | Transformator zur verwendung in einem schienenfahrzeug |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11984248B2 (de) |
| EP (1) | EP3707736B1 (de) |
| CN (1) | CN111357067B (de) |
| DE (1) | DE102017126473A1 (de) |
| WO (1) | WO2019092014A1 (de) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2771109B2 (ja) * | 1994-03-16 | 1998-07-02 | 北村機電株式会社 | 巻鉄心 |
| JP3794928B2 (ja) * | 2000-04-17 | 2006-07-12 | 東京精電株式会社 | 低騒音・低損失リアクトル |
| DE10058080A1 (de) * | 2000-11-23 | 2002-06-06 | Daimlerchrysler Rail Systems | Mittelfrequenztransformator |
| JP2007013042A (ja) * | 2005-07-04 | 2007-01-18 | Hitachi Metals Ltd | 複合磁心およびこれを用いたリアクトル |
| WO2007133399A2 (en) | 2006-05-09 | 2007-11-22 | Spang & Company | Electromagnetic assemblies, core segments that form the same, and their methods of manufacture |
| US20070262839A1 (en) * | 2006-05-09 | 2007-11-15 | Spang & Company | Electromagnetic assemblies, core segments that form the same, and their methods of manufacture |
| US20070261231A1 (en) | 2006-05-09 | 2007-11-15 | Spang & Company | Methods of manufacturing and assembling electromagnetic assemblies and core segments that form the same |
| CN101271755A (zh) | 2007-03-19 | 2008-09-24 | 齐会南 | 一种干式电力变压器 |
| FI20070798A0 (fi) * | 2007-10-24 | 2007-10-24 | Jarkko Salomaeki | Menetelmä magneettisen sydämen valmistamiseksi |
| CN201174297Y (zh) | 2008-04-07 | 2008-12-31 | 罗定市无线电科技有限公司 | 组合式变压器铁芯 |
| JP5179561B2 (ja) | 2010-12-02 | 2013-04-10 | 三菱電機株式会社 | リアクトル装置 |
| JP6048910B2 (ja) | 2011-11-14 | 2016-12-21 | 住友電気工業株式会社 | リアクトル、コイル成形体、コンバータ、及び電力変換装置 |
| EP2709124B1 (de) | 2012-09-12 | 2015-01-07 | ABB Technology AG | Transformator |
| US9613743B2 (en) | 2014-10-10 | 2017-04-04 | Cooper Technologies Company | Optimized electromagnetic transformer component design and methods including improved conductivity composite conductor material |
| DE102014223797A1 (de) | 2014-11-21 | 2016-05-25 | Mdexx Gmbh | Kern für einen Transformator oder eine Drossel sowie Transformator oder Drossel und Verfahren zu deren Herstellung |
-
2017
- 2017-11-10 DE DE102017126473.6A patent/DE102017126473A1/de active Pending
-
2018
- 2018-11-07 EP EP18799765.5A patent/EP3707736B1/de active Active
- 2018-11-07 CN CN201880072401.4A patent/CN111357067B/zh active Active
- 2018-11-07 WO PCT/EP2018/080465 patent/WO2019092014A1/de not_active Ceased
- 2018-11-07 US US16/762,608 patent/US11984248B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017126473A1 (de) | 2019-05-16 |
| WO2019092014A1 (de) | 2019-05-16 |
| US20200357561A1 (en) | 2020-11-12 |
| US11984248B2 (en) | 2024-05-14 |
| CN111357067B (zh) | 2023-02-21 |
| EP3707736B1 (de) | 2025-09-10 |
| CN111357067A (zh) | 2020-06-30 |
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