EP3707736A1 - Transformer for use in a rail vehicle - Google Patents

Transformer for use in a rail vehicle

Info

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.)
Pending
Application number
EP18799765.5A
Other languages
German (de)
French (fr)
Inventor
Frank Cornelius
Wolfgang Mönig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Energy Ltd
Original Assignee
ABB Power Grids Switzerland AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Power Grids Switzerland AG filed Critical ABB Power Grids Switzerland AG
Publication of EP3707736A1 publication Critical patent/EP3707736A1/en
Pending legal-status Critical Current

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

A transformer (1) for use in a rail vehicle and/or for railway applications, comprising a core (2), which is surrounded at least partially by at least one coil (3, 4), is characterized with respect to the task of specifying a transformer in which the geometry of a coil can be selected as variably as possible in that the core (2) is fabricated from individual segments, wherein the overall cross-sectional area (2c) of the core (2) is greater than the sum, or equal to the sum, of the individual cross-sectional areas (2a, 2b, 2ab) of the segments, and wherein at least two individual cross-sectional areas (2a, 2b, 2ab) differ in their size and/or their geometric shape from one another and/or from the overall cross-sectional area (2c).

Description

Transformator zur Verwendung in einem Schienenfahrzeug  Transformer for use in a railway vehicle
Die Erfindung betrifft einen Transformator zur Verwendung in einem The invention relates to a transformer for use in a
Schienenfahrzeug und/ oder für Bahnanwendungen, umfassend einen Kern, welcher zumindest abschnittsweise von mindestens einer Spule umgeben ist. In konventionellen Traktionstransformatoren wird üblicherweise ein Kern verwendet, der aus mehreren Blechpaketen zusammengesetzt ist. Hierbei entstehen mehrere Stoß- und Verbindungsstellen. Wenn vier Blechpakete verwendet werden, treten üblicherweise vier Stoß- und Verbindungsstellen auf. Die zur Fertigung des Kerns verwendeten Kernbleche werden zu Paketen gestapelt und ineinander verschachtelt aufgebaut. 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.
Vor diesem Hintergrund wird die Geometrie einer Spule durch die Geometrie des Wickelkörpers vorgegeben. Ein runder Wickelkörper führt zu einer im Wesentlichen runden Spule, ein eckiger Wickelkörper führt zu einer eher eckigen Spule. Bei konventionell erhältlichen Traktionstransformatoren treten üblicherweise eher runde oder näherungsweise rechteckige Geometrien auf, wobei die jeweilige Geometrie eng mit dem jeweils angewendeten Fertigungsverfahren zusammenhängt. In bestimmten Anwendungsfällen kann aber eine eher runde oder näherungsweise rechteckige Geometrie nachteilig sein. Against this background, the geometry of 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.
Der Erfindung liegt daher die Aufgabe zugrunde, einen Transformator anzugeben, bei welchem die Geometrie einer Spule möglichst variabel wählbar ist. Erfindungsgemäß wird die voranstehende Aufgabe durch einen Transformator mit den Merkmalen des Patentanspruchs 1 gelöst. 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.
Danach ist der eingangs genannte Transformator dadurch gekennzeichnet, dass der Kern aus einzelnen Segmenten gefertigt ist, wobei die Gesamtquerschnittsfläche des Kerns größer als die oder gleich der Summe der Einzelquerschnittsflächen der Segmente ist und wobei zumindest zwei Einzelquerschnittsflächen in ihrer Größe und/ oder ihrer geometrischen Form voneinander und/ oder jeweils von der Thereafter, 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
Gesamtquerschnittsfläche abweichen. Total cross-sectional area differ.
Erfindungsgemäß ist zunächst erkannt worden, dass an einen Transformator für Bahnanwendungen besondere Anforderungen gestellt werden, nämlich According to the invention, it has first been recognized that special requirements are placed on a transformer for railway applications, namely
Anforderungen an sein Gewicht, an seine mechanischen Eigenschaften und an die Geometrie seines Gehäuses. Requirements for its weight, its mechanical properties and the geometry of its housing.
Darauf ist erkannt worden, dass diese Anforderungen im Wesentlichen dann erfüllt werden können, wenn der Kern des Transformators im Hinblick auf sein Gewicht, seine mechanischen Eigenschaften und seine Geometrie geeignet ausgelegt ist. Es ist auch erkannt worden, dass ein Bedarf nach einem besonderen Kern für Transformatoren für Bahnanwendungen besteht, da hierfür üblicherweise Kerne verwendet werden, die auch bei Transformatoren in Industrieanlagen zum Einsatz kommen. Erfindungsgemäß ist schließlich erkannt worden, dass durch eine Modifikation der Gesamtquerschnittsfläche des Kerns sowohl die Spulen als auch das Gehäuse leicht modifizierbar und an Bahnanwendungen anpassbar sind. Die Geometrien der Spulenquerschnittsflächen sind leicht an die Geometrie des Gehäuses anpassbar. Hierdurch kann der Aufbau des Transformators kompakter als bisher gestaltet werden. Mit einem kompakteren Transformator können größere Spannungs- und Leistungsbereiche abgedeckt werden. Vorteilhaft sind die Segmente als Kernblechpakete ausgestaltet. Ein Kern kann so in üblicher weise gefertigt werden. Es können Kernblechpakete mit unterschiedlichen, aber auch mit gleichen Querschnittsflächen zum Einsatz kommen, um die It has then been recognized that these requirements can be met substantially if 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. Finally, according to the invention, it has been recognized that by modifying the overall cross-sectional area of the core, 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. As a result, 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. Advantageously, 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
Gesamtquerschnittsfläche des Kerns puzzleartig oder mosaikartig zu gestalten. So sind Gesamtquerschnittsflächen erzeugbar, die von regelmäßigen Rechtecksflächen oder quadratischen Flächen abweichen und Auswölbungen oder Einbuchtungen aufweisen. Overall cross-sectional area of the core to make a puzzle-like or mosaic-like. Thus, total cross-sectional areas can be generated which deviate from regular rectangular areas or square areas and have bulges or indentations.
Vor diesem Hintergrund zeigt eine Einzelquerschnittsfläche bevorzugt die Geometrie eines Quadrats, eines Rechtecks, eines Trapezes, eines Kreissegments oder einer anderen geometrischen Fläche mit mindestens einer geraden Seite. Solche Against this background, 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. Such
Segmente können besonders gut mit ihren geraden Seiten an andere Segmente mit geraden Seiten angelegt werden. Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung zeigt eineSegments 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
Einzelquerschnittsfläche die Geometrie eines Kreises, einer Ellipse, eines Ovals oder einer anderen geometrischen Fläche mit einer gekrümmten Umrandung. Hierdurch können Gesamtquerschnittsflächen eines Kerns mit Auswölbungen oder Rundungen gefertigt werden. Single cross-sectional area The geometry of a circle, an ellipse, an oval or another geometric area with a curved border. As a result, total cross-sectional areas of a core can be made with bulges or curves.
Vorteilhaft weist eine Spulenquerschnittsfläche neben Rundbereichen, in denen die Wicklung eine Richtungsänderung erfährt, mindestens eine Schrägseite auf, die zu mindestens zwei parallelen Seiten geneigt ist. Hierdurch kann eine Spule unter einer Schräge, insbesondere einer Dachschräge eines Schienenfahrzeugs, angeordnet werden. Advantageously, 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. In this way, a coil under a slope, in particular a roof slope of a rail vehicle, can be arranged.
Vorteilhaft umfängt ein Gehäuse den Kern und mindestens zwei Spulen. Hierdurch sind die Spulen und der Kern vor einem Zugriff gesichert. Gemäß einer bevorzugten Ausführungsform der Erfindung weist das Gehäuse eine Gehäusequerschnittsfläche auf, die zumindest abschnittsweise trapezartig Advantageously, a housing surrounds the core and at least two coils. As a result, the coils and the core are secured against access. According to a preferred embodiment of the invention, the housing has a housing cross-sectional area which is at least partially trapezoidal
ausgestaltet ist. Hierdurch ist das Gehäuse in ein Schienenfahrzeug oder ein is designed. As a result, the housing is in a rail vehicle or a
Bahnprofil einpassbar. Bevorzugt umfasst ein Schienenfahrzeug einen Transformator der hier beschriebenen Art. So kann ein kompakter und leistungsstarker Transformator in Bahnanwendungen eingesetzt werden. Der Transformator ist bevorzugt als Traktionstransformator ausgestaltet. Rail profile adjustable. A rail vehicle preferably comprises a transformer of the type described here. Thus, a compact and high-performance transformer can be used in railway applications. The transformer is preferably designed as a traction transformer.
In der Zeichnung zeigen In the drawing show
Fig. 1 eine Schnittansicht eines konventionell gefertigten Transformators für Fig. 1 is a sectional view of a conventionally manufactured transformer for
Bahnanwendungen mit zwei Spulen, deren Kern jeweils eine rechteckige Railway applications with two coils, the core of each one rectangular
Gesamtquerschnittsfläche aufweist, wobei die Spulen eine im Has total cross-sectional area, wherein the coils in the
Wesentlichen rechteckige Spulenquerschnittsfläche zeigen und wobei die Eckbereiche der Spulenquerschnittsflächen als Rundbereiche ausgebildet sind,  Show substantially rectangular coil cross-sectional area and wherein the corner regions of the coil cross-sectional areas are formed as round areas,
Fig. 2 zeigt einen Transformator, wobei die Geometrien der Fig. 2 shows a transformer, wherein the geometries of
Spulenquerschnittsflächen seiner Spulen den Abmessungen eines Bahnprofils angepasst sind, und Fig. 3 eine schematische Schnittansicht von Kernblechpaketen, wobei  Coil cross-sectional areas of its coils are adapted to the dimensions of a web profile, and Fig. 3 is a schematic sectional view of core lamination packets, wherein
beispielhaft zwei Gesamtquerschnittsflächen von Kernen durch Addieren bzw. Kombinieren von Kernblechpaketen mit unterschiedlichen Einzelquerschnittsflächen bzw. Abmessungen gefertigt werden. Fig. 1 zeigt einen Transformator des Stands der Technik, dessen äußere  By way of example, two total cross-sectional areas of cores can be produced by adding or combining core lamination packages with different individual cross-sectional areas or dimensions. Fig. 1 shows a transformer of the prior art, the outer
Abmessungen durch ein Bahnprofil vorgegeben sind. Dimensions are given by a track profile.
Fig. 2 zeigt einen Transformator 1 zur Verwendung in einem Schienenfahrzeug und/ oder für Bahnanwendungen, umfassend einen Kern 2, welcher zumindest FIG. 2 shows a transformer 1 for use in a railway vehicle and / or for railway applications, comprising a core 2, which at least
abschnittsweise von mindestens einer Spule 3 umgeben ist. is partially surrounded by at least one coil 3.
Der Kern 2 ist aus einzelnen Segmenten gefertigt, wobei die The core 2 is made of individual segments, wherein the
Gesamtquerschnittsfläche 2c des Kerns größer als die Summe der Total cross-sectional area 2c of the core is greater than the sum of
Einzelquerschnittsflächen 2a, 2b der Segmente ist. Diese Segmente sind hinsichtlich ihrer Einzelquerschnittsflächen 2a, 2b im oberen Teil von Fig. 3 dargestellt. Die zwei Einzelquerschnittsflächen 2a, 2b unterscheiden sich in ihrer Größe voneinander, weichen also voneinander in ihrer Größe ab. Ihre Flächen sind unterschiedlich groß. Single cross-sectional areas 2a, 2b of the segments. These 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.
Die zwei Einzelquerschnittsflächen 2a, 2b unterscheiden sich auch in ihrer geometrischen Form voneinander und weichen daher auch hinsichtlich ihrer 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
Geometrie voneinander ab. Zwar zeigen beide Einzelquerschnittsflächen 2a, 2b jeweils die Geometrie eines Rechtecks, jedoch haben die Seiten der zwei Geometry from each other. Although both individual cross-sectional areas 2a, 2b each show the geometry of a rectangle, but the sides of the two
dargestellten Rechtecke unterschiedliche Längenverhältnisse. Links ist ein länglicheres Rechteck dargestellt, rechts ist ein gedrungeneres Rechteck dargestellt. shown rectangles different aspect ratios. On the left is a longer rectangle, on the right is a squat rectangle.
Die zwei Einzelquerschnittsflächen 2a, 2b weichen jeweils in ihrer geometrischen Form auch noch von der Gesamtquerschnittsfläche 2c ab, welche sechseckig ist, eine Stufeneinbuchtung aufweist und nicht als Rechteck ausgebildet ist. Die Segmente sind als Kernblechpakete ausgestaltet. Diese bilden den Kern 2. 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 zeigt, dass drei Einzelquerschnittsflächen 2a, 2b, 2ab jeweils die Geometrie eines Rechtecks zeigen. Fig. 2 zeigt, dass eine Spulenquerschnittsfläche 3a neben drei Rundbereichen 6, in denen die Wicklung eine Richtungsänderung um 90° erfährt, mindestens eine Schrägseite 7 aufweist, die zu mindestens zwei parallelen Seiten 5a, 5b geneigt ist. 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.
Ein Gehäuse 8 umfängt den Kern 2 und mindestens zwei Spulen 3, 4, die den Kern 2 umfangen. Das Gehäuse 8 weist eine Gehäusequerschnittsfläche 8a auf, die abschnittsweise, nämlich im oberen Abschnitt des Gehäuses 8, trapezartig ausgestaltet ist. Im unteren Abschnitt des Gehäuses 8 ist schematisch ein Nutzraum 9 dargestellt, der durch die Ausgestaltung des Kerns 2 gegenüber der Ausgestaltung des Stands der Technik gemäß Fig. 2 gewonnen werden kann. Es können zwei, drei oder mehr als drei Segmente zum Aufbau des Kerns 2 verwendet werden. Die Segmente können in üblicher weise miteinander verbunden werden. 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. In the lower portion of the housing 8, 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.
Die Gesamtquerschnittsfläche 2c und die Einzelquerschnittsflächen 2a, 2b sind orthogonal zur Richtung des magnetischen Flusses durch den Kern 2 und/ oder zur Längsachse einer Spule 3, 4 orientiert. 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.
Ein nicht gezeigtes Schienenfahrzeug umfasst den Transformator 1 . An unillustrated rail vehicle comprises the transformer 1.
Bezuqszeichenliste LIST OF REFERENCES
1 , 1 ' Transformator 1, 1 'transformer
2, 2' Kern von 1 , 1 '  2, 2 'core of 1, 1'
2a Einzelquerschnittsfläche 2a single cross-sectional area
2b Einzelquerschnittsfläche2b single cross sectional area
2ab Einzelquerschnittsfläche2ab single cross sectional area
2c Gesamtquerschnittsfläche2c total cross-sectional area
2d Gesamtquerschnittsfläche2d total cross-sectional area
3 Spule 3 coil
3a Spulenquerschnittsfläche 3a coil cross-sectional area
4 weitere Spule 4 more coils
5a untere parallele Seite von 3a 5a lower parallel side of FIG. 3a
5b obere parallele Seite von 3a5b is the upper parallel side of FIG. 3a
6 Rundbereich von 3a 6 round area of 3a
7 Schrägseite von 3a  7 oblique side of 3a
8, 8' Gehäuse  8, 8 'housing
8a Gehäusequerschnittsfläche 8a housing cross-sectional area
9 Nutzraum 9 usable space

Claims

Patentansprüche claims
1 . Transformator (1 ) zur Verwendung in einem Schienenfahrzeug und/ oder für Bahnanwendungen, umfassend einen Kern (2), welcher zumindest 1 . Transformer (1) for use in a rail vehicle and / or for railway applications, comprising a core (2), which at least
abschnittsweise von mindestens einer Spule (3, 4) umgeben ist,  is surrounded in sections by at least one coil (3, 4),
dadurch gekennzeichnet, dass der Kern (2) aus einzelnen Segmenten gefertigt ist, wobei die Gesamtquerschnittsfläche (2c) des Kerns (2) größer als die oder gleich der Summe der Einzelquerschnittsflächen (2a, 2b, 2ab) der Segmente ist und wobei zumindest zwei Einzelquerschnittsflächen (2a, 2b, 2ab) in ihrer Größe und/ oder ihrer geometrischen Form voneinander und/ oder von der Gesamtquerschnittsfläche (2c) abweichen.  characterized in that the core (2) is made of individual segments, wherein the total cross-sectional area (2c) of the core (2) is greater than or equal to the sum of the individual cross-sectional areas (2a, 2b, 2ab) of the segments, and wherein at least two individual cross-sectional areas (2a, 2b, 2ab) differ in their size and / or their geometric shape from each other and / or from the total cross-sectional area (2c).
2. Transformator nach Anspruch 1 , dadurch gekennzeichnet, dass die Segmente als Kernblechpakete ausgestaltet sind. 2. Transformer according to claim 1, characterized in that the segments are configured as core lamination packages.
3. Transformator nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass eine Einzelquerschnittsfläche (2a, 2b, 2ab) die Geometrie eines Quadrats, eines Rechtecks, eines Trapezes, eines Kreissegments oder einer anderen 3. Transformer according to claim 1 or 2, characterized in that a single cross-sectional area (2a, 2b, 2ab) the geometry of a square, a rectangle, a trapezoid, a circle segment or another
geometrischen Fläche mit mindestens einer geraden Seite zeigt.  geometric surface with at least one straight side shows.
4. Transformator nach einem der voranstehenden Ansprüche, dadurch 4. Transformer according to one of the preceding claims, characterized
gekennzeichnet, dass eine Einzelquerschnittsfläche die Geometrie eines Kreises, einer Ellipse, eines Ovals oder einer anderen geometrischen Fläche mit einer gekrümmten Umrandung zeigt.  in that a single cross-sectional area shows the geometry of a circle, an ellipse, an oval or another geometric area with a curved border.
5. Transformator nach einem der voranstehenden Ansprüche, dadurch 5. Transformer according to one of the preceding claims, characterized
gekennzeichnet, dass eine Spulenquerschnittsfläche (3a) neben  in that a coil cross-sectional area (3a) is adjacent
Rundbereichen (6), in denen die Wicklung eine Richtungsänderung erfährt, mindestens eine Schrägseite (7) aufweist, die zu mindestens zwei parallelen Seiten (5a, 5b) geneigt ist.  Round areas (6), in which the winding undergoes a change in direction, at least one inclined side (7) which is inclined to at least two parallel sides (5a, 5b).
6. Transformator nach einem der voranstehenden Ansprüche, dadurch 6. Transformer according to one of the preceding claims, characterized
gekennzeichnet, dass ein Gehäuse (8) den Kern (2) und mindestens zwei Spulen (3, 4) umfängt. in that a housing (8) surrounds the core (2) and at least two coils (3, 4).
7. Transformator nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (8) eine Gehäusequerschnittsfläche (8a) aufweist, die zumindest abschnittsweise trapezartig ausgestaltet ist. 7. Transformer according to one of the preceding claims, characterized in that the housing (8) has a housing cross-sectional area (8a), which is configured at least partially trapezoidal.
8. Schienenfahrzeug, umfassend einen Transformator (1 ) nach einem der 8. Rail vehicle comprising a transformer (1) according to one of
voranstehenden Ansprüche.  preceding claims.
EP18799765.5A 2017-11-10 2018-11-07 Transformer for use in a rail vehicle Pending EP3707736A1 (en)

Applications Claiming Priority (2)

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DE102017126473.6A DE102017126473A1 (en) 2017-11-10 2017-11-10 Transformer for use in a railway vehicle
PCT/EP2018/080465 WO2019092014A1 (en) 2017-11-10 2018-11-07 Transformer for use in a rail vehicle

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EP3707736A1 true EP3707736A1 (en) 2020-09-16

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US (1) US11984248B2 (en)
EP (1) EP3707736A1 (en)
CN (1) CN111357067B (en)
DE (1) DE102017126473A1 (en)
WO (1) WO2019092014A1 (en)

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JP3794928B2 (en) * 2000-04-17 2006-07-12 東京精電株式会社 Low noise and low loss reactor
DE10058080A1 (en) * 2000-11-23 2002-06-06 Daimlerchrysler Rail Systems Medium-frequency transformer
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US20070261231A1 (en) 2006-05-09 2007-11-15 Spang & Company Methods of manufacturing and assembling electromagnetic assemblies and core segments that form the same
KR20090006826A (en) 2006-05-09 2009-01-15 스팽 ＆ 컴퍼니 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
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US20200357561A1 (en) 2020-11-12
CN111357067B (en) 2023-02-21
DE102017126473A1 (en) 2019-05-16
CN111357067A (en) 2020-06-30
WO2019092014A1 (en) 2019-05-16
US11984248B2 (en) 2024-05-14

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