EP2301048A1 - Transformator - Google Patents
TransformatorInfo
- Publication number
- EP2301048A1 EP2301048A1 EP09776702A EP09776702A EP2301048A1 EP 2301048 A1 EP2301048 A1 EP 2301048A1 EP 09776702 A EP09776702 A EP 09776702A EP 09776702 A EP09776702 A EP 09776702A EP 2301048 A1 EP2301048 A1 EP 2301048A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- corrugated
- cooling channels
- wavelength
- circumferential
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
Definitions
- the invention relates to a transformer with a coil wound with conductor material, are introduced in the cooling channels through which a cooling fluid flows, wherein corrugated components are introduced into the coil to form the cooling channels, wherein these components may also be formed by suitable conductor material.
- such a corrugated component is wound around the component at the desired location, with the individual corrugations having substantially uniform spacing and radial wave height so that all of the cooling channels have the same or substantially equal cross-sections such that the corrugations Cooling takes place evenly inside the coil.
- Such corrugated components can not be used if the coil part to be wound or the coil section to be wound has a shape deviating from the circular shape, in particular a rectangular shape.
- the rectangular shape with a uniform shaping of the corrugated component at the corners by force to reduce the radial height of the waveform, so that in this corner region, the cooling channels can be resolved and the flow cross sections do not have sufficient values, whereby the cooling in Area of corners is deteriorated.
- the object of the invention is to produce cooling channels even by corrugated components, if the circumferential contour deviates significantly from the circular shape. According to the invention, this object is solved by the features of claim 1.
- the cooling channels are formed by corrugated components, the wave shape and number of waves of which are adapted to the outer circumferential surface.
- the wavelength of the individual waveforms in the areas provided for the corner portions of the coil is significantly smaller than in the areas where the outer peripheral contour of the coil is approximately straight or planar, so that in the region of the corners more cooling channels are produced with a smaller cross-section, as in the flat areas, so that in the flat areas, the number of cooling channels smaller and the cross sections of the individual cooling channels are greater than in the area of the corners.
- This arrangement can also be used if instead of the flat surfaces in the peripheral contour areas with a large radius of circumference are provided, which may be the case for example in the case of an oval cross-section of a coil.
- Such a corrugated or corrugated component may be prefabricated according to the circumferential contour of the coil, wherein the component may be a plastic component or a conductor portion. The necessary shaping of the corrugated component is then calculated in advance.
- Show it 1 is a corrugated component
- Fig. 2 shows an assignment of a corrugated component to a coil part
- Fig. 3 the assembled, corrugated component.
- corrugated component 10 also called a corrugated board 10 which in each case has two sections 11 and 12 with a different waveform.
- the individual shafts 13 and 14 are shallow, elongated waves with a wavelength B 1 , so that waves with flat wave troughs 15 or even wave crests 16 are formed by the shoulders 17 running perpendicular to the wave troughs 15 and to the wave crests 16, respectively or 18 are connected to each other.
- the section 11 is followed by a section 12, in which the wavelength of the wave troughs 19 and the wave crests 20 B 2 , which is significantly smaller than the width B 1 ; in the present embodiment, B 2 is about 1/3 B 1 .
- the corrugated component 10 is now applied to a coil form 21 from the outside, which has approximately a rectangular contour, with flat portions 22 and rounded corners 23rd
- Fig. 3 shows the assembled corrugated member 10 on the coil 21, wherein in the region 22 two wave crests 10 1 and 16 2 are provided; in the region of the rounded corner 23 there are three wave peaks 20i, 2O 2 and 2O 3 , between which lie the wave troughs 19i, 19 2 , which, like the wave troughs' I ⁇ i and 15 2, rest on the outer surface of the coil 21.
- the number, wavelength and radial height of the wave crests and troughs depends on the required cooling capacity and, moreover, on the circumferential contour of the coil 21.
- the central axis of the coil 21 is perpendicular to the plane of the drawing, so that the cross sections of the cooling channels generated by the wave crests or troughs parallel to the central longitudinal axis, ie in the vertical direction.
- the number of wave peaks 16 i, 16 2 then generates in the planar region 22 of the coil an identical or approximately the same cooling cross section as the wave crests 20 i, 2 o 2 , 2 o 3 , so that the cooling in the flat region 22 equals the cooling in the region of the rounded corner is.
- a similar solution can be used even if the region 22 is formed by a large-radius peripheral contour, or if the coil circumference 21 has an oval shape.
- the necessary shaping of the corrugated component 10 can be calculated in advance, depending on the circumferential contour of the coil 21.
- the invention is described with reference to a separately manufactured corrugated component 10. It is of course also possible to form the conductor material with which the coil is to be wound corrugated in a corresponding manner, which is then wound up in a continuous process.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Housings And Mounting Of Transformers (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008033125A DE102008033125A1 (de) | 2008-07-15 | 2008-07-15 | Transformator |
| PCT/EP2009/004120 WO2010006671A1 (de) | 2008-07-15 | 2009-06-09 | Transformator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2301048A1 true EP2301048A1 (de) | 2011-03-30 |
Family
ID=40888424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09776702A Withdrawn EP2301048A1 (de) | 2008-07-15 | 2009-06-09 | Transformator |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8242869B2 (de) |
| EP (1) | EP2301048A1 (de) |
| DE (1) | DE102008033125A1 (de) |
| WO (1) | WO2010006671A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9024713B1 (en) | 2012-08-09 | 2015-05-05 | Power Distribution Products, Inc. | Extreme duty encapsulated transformer coil with corrugated cooling ducts and method of making the same |
| TW201429105A (zh) * | 2013-01-04 | 2014-07-16 | 致伸科技股份有限公司 | 無線充電傳輸裝置 |
| CN112562981B (zh) * | 2020-12-29 | 2021-11-30 | 河南工学院 | 一种电力变压设备及其安装支架 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE512247C (de) * | 1930-11-08 | Aeg | Vorrichtung zum Kuehlen von Wellblechbehaeltern fuer elektrische Apparate mittels Kuehlluft | |
| DE145443C (de) * | ||||
| DE395910C (de) * | 1919-11-10 | 1924-05-19 | Louis Faiveley | Fluessigkeitsbehaelter aus Wellblech fuer selbsttaetigen Umlauf der Kuehlfluessigkeit, insbesondere fuer OEltransformatoren und aehnliche elektrische Apparate |
| DE889649C (de) * | 1951-09-27 | 1953-09-14 | Siemens Ag | Anordnung an Spulen elektrischer Maschinen oder Apparate mit in einem konzentrierten Wickelraum angeordneten regelmaessig gewickelten Leitern |
| US2710947A (en) * | 1951-11-28 | 1955-06-14 | Electrocraft Company | Electrical coil construction |
| US3170134A (en) * | 1961-12-15 | 1965-02-16 | Westinghouse Electric Corp | Electrical coil structure for inductive apparatus |
| US3252117A (en) * | 1962-05-21 | 1966-05-17 | Westinghouse Electric Corp | Transposed winding and insulation arrangement for electrical apparatus |
| US3302149A (en) * | 1964-09-30 | 1967-01-31 | Westinghouse Electric Corp | Electrical insulating structure |
| US3237136A (en) * | 1964-11-19 | 1966-02-22 | Westinghouse Electric Corp | Coils for inductive apparatus |
| US3386060A (en) | 1966-01-26 | 1968-05-28 | Mc Graw Edison Co | Power distribution transformer having conductive strip winding |
| US3431524A (en) * | 1966-06-08 | 1969-03-04 | Westinghouse Electric Corp | Polyphase electrical transformer construction having vertically superposed winding structures with cooling ducts |
| US3386058A (en) * | 1966-11-21 | 1968-05-28 | Westinghouse Electric Corp | Inductive assembly with supporting means |
| US3495202A (en) | 1968-09-24 | 1970-02-10 | Updegraff Mfg | Electrical induction coils and their manufacture |
| DE2051883B2 (de) * | 1970-10-22 | 1976-07-29 | Lepper-Dominit Transformatoren Gmbh, 5340 Bad Honnef | Wicklung fuer trockentransformatoren und verfahren zu ihrer herstellung |
| US3748616A (en) | 1972-03-24 | 1973-07-24 | Ite Imperial Corp | Transformer winding structure using corrugated spacers |
| DE2328652A1 (de) * | 1973-06-06 | 1975-01-02 | Lepper Dominit Transformatoren | Wicklung und verfahren zum herstellen von wicklungen fuer elektrische geraete |
| FR2365867A1 (fr) * | 1976-09-22 | 1978-04-21 | Alsthom Savoisienne | Bobinages en feuilles metalliques |
| DE3036230A1 (de) * | 1980-09-25 | 1982-05-06 | Transformatoren Union Ag | Wicklungsanordnung fuer transformatoren mit quadratischem kernquerschnitt |
| JPS59132606A (ja) * | 1983-01-20 | 1984-07-30 | Takaoka Ind Ltd | 条コイル及びその製造方法 |
| JPS59201807A (ja) | 1983-04-30 | 1984-11-15 | アイン・エンジニアリング株式会社 | 木質様樹脂板材の成形方法 |
| JPH0410405A (ja) * | 1990-04-26 | 1992-01-14 | Meidensha Corp | 変圧器巻線冷却ダクトの製造方法 |
-
2008
- 2008-07-15 DE DE102008033125A patent/DE102008033125A1/de not_active Withdrawn
-
2009
- 2009-06-09 WO PCT/EP2009/004120 patent/WO2010006671A1/de not_active Ceased
- 2009-06-09 EP EP09776702A patent/EP2301048A1/de not_active Withdrawn
-
2011
- 2011-01-10 US US12/987,441 patent/US8242869B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010006671A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US8242869B2 (en) | 2012-08-14 |
| DE102008033125A1 (de) | 2010-01-21 |
| WO2010006671A1 (de) | 2010-01-21 |
| US20110140821A1 (en) | 2011-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20101202 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20140213 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: F28F 3/02 20060101AFI20140905BHEP Ipc: H01F 27/28 20060101ALI20140905BHEP |
|
| INTG | Intention to grant announced |
Effective date: 20140924 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20150205 |