EP1729310A1 - Transformateur MF - Google Patents
Transformateur MF Download PDFInfo
- Publication number
- EP1729310A1 EP1729310A1 EP06010808A EP06010808A EP1729310A1 EP 1729310 A1 EP1729310 A1 EP 1729310A1 EP 06010808 A EP06010808 A EP 06010808A EP 06010808 A EP06010808 A EP 06010808A EP 1729310 A1 EP1729310 A1 EP 1729310A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transformer according
- cores
- windings
- transformer
- primary
- 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
- 238000004804 winding Methods 0.000 claims abstract description 63
- 230000035515 penetration Effects 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 7
- 238000004382 potting Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000011231 conductive filler Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000011889 copper foil Substances 0.000 claims description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910001369 Brass Inorganic materials 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 239000010951 brass Substances 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 claims 1
- 239000011810 insulating material Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 description 11
- 229910000859 α-Fe Inorganic materials 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- YSUIQYOGTINQIN-UZFYAQMZSA-N 2-amino-9-[(1S,6R,8R,9S,10R,15R,17R,18R)-8-(6-aminopurin-9-yl)-9,18-difluoro-3,12-dihydroxy-3,12-bis(sulfanylidene)-2,4,7,11,13,16-hexaoxa-3lambda5,12lambda5-diphosphatricyclo[13.2.1.06,10]octadecan-17-yl]-1H-purin-6-one Chemical compound NC1=NC2=C(N=CN2[C@@H]2O[C@@H]3COP(S)(=O)O[C@@H]4[C@@H](COP(S)(=O)O[C@@H]2[C@@H]3F)O[C@H]([C@H]4F)N2C=NC3=C2N=CN=C3N)C(=O)N1 YSUIQYOGTINQIN-UZFYAQMZSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000002707 nanocrystalline material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
-
- 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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- 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
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
Definitions
- the invention relates to a transformer, in particular a medium-frequency transformer with galvanic isolation, as used for example for applications in the field of rail technology.
- Transformers are essential components in electrical engineering, in industrial plant construction, in rail vehicle construction and in many areas of technology in general (including in aircraft and satellites). However, power compression in the design of transformers and chokes has historically been improved to a limited extent.
- two-legged MF transformers for industrial and rail transport, are traditionally cooled only at the windings or at gaps with air or other media.
- additional cooling surfaces or indirect liquid cooling devices for the windings and the magnetic circuits bring about a certain reduction of volume and weight, but no fundamental breakthrough.
- the known MF transformers are arranged externally to the HBU or drive power converters.
- HBUs are mostly cooled with air of rare water.
- water cooling is used for drive converters, at least for the MF transformers.
- recoolers are sometimes required, which require additional installation space in the underfloor area of the wagons or on the SR container.
- the invention has for its object to provide a transformer, in particular a two-arm MF transformer with low volume and weight and similar design of about 40 to more than 400 KVA.
- the coil penetrations of the hermetically encapsulated primary and secondary windings are electrically and thermally separated from each other with intermediate insulations, the cores being thermally and dielectrically insulated and durably secured and held without any gaps within the coil penetrations via fin partial surfaces or corner surfaces.
- two-arm transformer can therefore be compared to newer transformers achieved by a factor of 1.2 -1.5 times more favorable volume / power weight, the power category: 200-400 kVA so far not or only with large Expenses (water cooling, waveguides, etc.) could be built, which is important for traction, in rail transport, but also industrial applications.
- the ribs or corner parts for the attachment of the cores are conical. This has, among other manufacturing reasons, since in this way only once split mold inserts for the coil penetrations are needed, which can be easily expressed after the Aushärtrind of the encapsulation.
- the cores are glued to the ribs and / or corner support part surfaces, wherein the cores and yokes outside and / or in the region of the glued joints to the ribs or corner contact part surfaces of the encapsulation with thin insulation material, preferably GfK , "glued".
- thin insulation material preferably GfK
- the primary and secondary windings of the transformer are separated by intermediate insulation and the hermetic encapsulation voltage significantly oversized from each other, the cores are thermally and electrically decoupled held in corresponding Spulen matdringungen in Spulenumguß.
- mechanical-metallic brackets, such as clamping profiles, fittings, etc. of conventional transformers even MF transformers for fixing the windings and the cores completely eliminated, which makes the MF transformer compared to conventional transformers particularly quiet and vibration proof (train / aircraft applications).
- This "separation measure” further increases the surface of the transformers compared to the compact casting by about 25%, at the same time a further improvement, the “inner side ventilation" of the cores and yokes is achieved, which is another physical leap in quality towards optimal cooling of the cores and yokes means.
- hermetic Spulenumgados realize u. a very reliable galvanic isolation between the primary and secondary windings, in all climatic conditions, including moisture / dirt. They form, with the windings, a compact block for receiving the cores, which is a problem with conventional MF transformers.
- Non-hermetically encapsulated MF transformers which are still in numerous use, often fail after 4-5 years of operation because moisture and dirt have in the meantime created creepage paths, both between grounded cores and between primary and / or secondary windings there are rollovers at the non-isolated potential arc base points. As a rule, these transformers can not be repaired.
- the potting resins are preferably epoxy resins with thermally conductive fillers, preferably aluminum oxide / nitride and / or silanized quartz powder and / or other isolated metal particles composed, as far as the casting insulation properties are not affected thereby.
- thermally conductive fillers preferably aluminum oxide / nitride and / or silanized quartz powder and / or other isolated metal particles composed, as far as the casting insulation properties are not affected thereby.
- the windings are preferably covered with fibers, especially glass fiber fabric.
- the primary and secondary windings are preferably foil conductors, but may also be profile waveguides for direct or indirect liquid cooling. But also high frequency strands are used.
- the transformer is - as already indicated - designed as a double-arm transformer, wherein a core / yoke pair is used for two windings of the transformer.
- the core attachment is made inside the gate, i. inside the windings.
- FIGS 1 to 4 show a first embodiment of the medium-frequency transformer according to the invention in different views.
- the MF transformer has a Spulenumguß 1 with a substantially chamfered-rectangular cross section.
- a primary winding 2a and a secondary winding 2b are cast. This results in a windings 2a, 2b hermetically enclosing block.
- the front and the back form an end face 3, the z. B. for the Positioning of the terminals 13, 14 of the MF transformer can be used.
- At the lower end transformer feet 4 are preferably provided which have a sprue fitting 6 for floor or wall mounts.
- the coil encapsulation 1 for example, two three-layer windings 2a and 2b are inserted, wherein the windings are juxtaposed by a Isolier fundamentalguß 19 separated from each other. Further, 1 cavities 20 can be provided on the front and back 3 of the Spulenumgußes that provide better dissipation of heat from the coils 2a, 2b to the outside in the environment.
- the electrical connection of the windings 2a and 2b takes place in integrated boarding rooms 11 and 12, which are also completely filled with potting compound.
- each coil has a coil penetration 29, wherein the opposite surfaces of the coil penetration 29 are arranged plane-parallel to each other.
- the coil penetrations have, for example, approximately rectangular cross-sections, with chamfered parts on the narrow sides of the penetrations, wherein in each case on one longitudinal side of the coil penetration 29 mutually parallel ribs 9 or corner surfaces 28 are provided.
- the ribs 9 to the surfaces of the coil penetration are arranged plane-parallel.
- the ribs 9 and 28 are preferably conically shaped longitudinally, both laterally and in their aperture width.
- the cores 21, 22 and yokes 18, as indicated in FIGS. 7 and 8, are joined into assemblies from I-cores or ribbon cores.
- the cores 21, 22 or yokes 18 are then externally and in the region of the adhesive joints to the ribs 9 of the Spulenumgußes 1 with a thermal insulating layer 5, preferably adhered GfK. This ensures that the cores 21, 22 can be thermally decoupled from the windings 2a, 2b.
- These pasted with the insulating layer 5 cores 21, 22 are now attached to one side by gluing to the ribs 9.
- the cores 21, 22 thus have contact only with the coil encapsulation 1 in the region of the ribs 9.
- soft magnetic materials can also be used as magnetic components. This has the advantage that at low frequencies e.g. ⁇ 4000 Hz almost the full rated power of higher frequencies 7,500 - 15,000 Hz (with ferrite) can be maintained. Another big advantage is that with just a few coil cross sections at variable widths or heights, the entire power range of current and future SR transformers can be realized.
- the primary and secondary terminals 13, 14 are preferably circularly insulated and arranged at 180 ° or laterally offset above and below.
- vertical or horizontal chimneys or forced air ducts which are actively or passively flowed through by cooling air, remain through the remaining gaps 10 between the core and the coil encapsulation.
- the cores 21, 22 are freely suspended in the windings on all sides and attached to the ribs 9 and / or in the corners 28 only on one side. As a result, the cores 21, 22 due to the adhesion "elastic-solid", noise-damping held in the Spulenumguß 1. All parts for fixing the cores 21, 22 are made of non-conductive materials, so that the cores can float freely in terms of potential. The cores are not grounded in contrast to conventional transformers. Preference is given to using ferrite cores or nanocrystalline or amorphous cores.
- the transformer according to the invention opens with its small volume, size and low weight, for example, to be arranged directly in cooler currents different power converter or modules. Due to its hermetic construction, it also requires no further measures for mechanical or sealing protection against environmental influences.
- Figures 5 and 6 show a slightly modified embodiment of an MF transformer according to the invention, in which case somewhat narrower ribs 9 are used for fastening the cores 21, 22.
- the transformer can be optimized either with respect to its leakage inductance or its noise emission.
- FIGS. 9 and 10 show, by way of example, a cross section and a plan view, respectively, of one of the two windings 2a and 2b.
- the conductors are inter alia copper foil conductors 23, which are wound with the interposition of an intermediate insulation 24 substantially square or rectangular.
- the Cu conductors 23 are externally connected in the terminals 13, 14 of the Spulenumgußes 1. All windings are firmly and hermetically sealed with a potting compound of a resin, preferably epoxy resin, with thermally conductive fillers.
- the windings are further wrapped with a coarse mesh glass silk tape to allow the winding encapsulation highly stable, heat and cold shock resistant.
- the conventional mica insulation is replaced according to the invention by thermal bridges 25 and casting resin cast intermediate insulations.
- the magnetic cores are provided with thin GfK plates for stress compensation and as adhesion promoter. Furthermore, side recesses 16 remain for the air bubble rise to the middle or outside for the process improvement during the casting process of the windings.
- FIGS. 11 to 14 show a transformer similar to that of FIGS. 1 to 4, identical components being provided with the same reference numerals.
- two three-layer windings 2 a and 2 b are inserted here in the coil encapsulation 1, wherein the windings are electrically and thermally separated from one another next to each other by a central gap channel 27.
- FIGS. 15 to 18 show a transformer similar to FIGS. 5 to 8, wherein identical components are provided with the same reference numerals.
- the windings are hereby also electrically and thermally separated from one another by a center gap channel 27.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
- Thin Magnetic Films (AREA)
- Non-Reversible Transmitting Devices (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Insulated Conductors (AREA)
- Transformer Cooling (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202005008757U DE202005008757U1 (de) | 2005-06-02 | 2005-06-02 | Transformator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1729310A1 true EP1729310A1 (fr) | 2006-12-06 |
EP1729310B1 EP1729310B1 (fr) | 2007-12-19 |
Family
ID=36999774
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06010808A Active EP1729310B1 (fr) | 2005-06-02 | 2006-05-26 | Transformateur MF |
EP06011057A Active EP1772877B1 (fr) | 2005-06-02 | 2006-05-30 | Transformateur MF avec meilleure dissipation thermique |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06011057A Active EP1772877B1 (fr) | 2005-06-02 | 2006-05-30 | Transformateur MF avec meilleure dissipation thermique |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP1729310B1 (fr) |
AT (2) | ATE381766T1 (fr) |
DE (3) | DE202005008757U1 (fr) |
DK (2) | DK1729310T3 (fr) |
ES (2) | ES2299118T3 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1537937B1 (fr) * | 2003-12-05 | 2016-08-17 | Bosch Rexroth AG | Module d'un pistolet de soudage électrique par résistance |
EP3364430A1 (fr) * | 2017-02-17 | 2018-08-22 | ABB Schweiz AG | Transformateur de fréquence moyenne à c ur sec |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202011110749U1 (de) | 2011-03-11 | 2016-03-10 | Reo Ag | Elektrisches Bauteil mit wenigstens einer in einer Vergussmasse angeordneten elektrischen Verlustleistungsquelle und einer Kühleinrichtung und Kühlkanal |
DE102013208653A1 (de) | 2013-05-10 | 2014-11-13 | Sts Spezial-Transformatoren-Stockach Gmbh & Co. Kg | Induktives Bauteil |
DE102013105120B4 (de) * | 2013-05-17 | 2019-09-26 | Reo Inductive Components Ag | Elektrische und induktive Bauteile |
US20200090856A1 (en) * | 2017-05-29 | 2020-03-19 | Thin Energy Ltd. | Thin transformer and method of production of same |
PL73320Y1 (pl) | 2021-09-30 | 2024-01-29 | Abb Schweiz Ag | Obudowa elementów magnetycznych |
EP4167255A1 (fr) | 2021-10-14 | 2023-04-19 | Premo, S.A. | Bobine conductrice de chaleur pour une unité d'alimentation magnétique |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1325184A (fr) * | 1962-04-26 | 1963-04-26 | Landis & Gyr Sa | Corps de bobine |
DE10203246A1 (de) * | 2002-01-21 | 2003-08-21 | Bombardier Transp Gmbh | Mittelfrequenz-Transformator |
US20040036568A1 (en) * | 2002-08-22 | 2004-02-26 | Minebea Co., Ltd. | Coil bobbin with core spacing mechanisms |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5875818A (ja) * | 1981-10-30 | 1983-05-07 | Toshiba Corp | 箔巻巻体 |
DE3539737A1 (de) * | 1985-11-08 | 1987-05-21 | Transformatoren Union Ag | Wicklung fuer transformatoren und drosselspulen |
SE457030B (sv) * | 1987-03-24 | 1988-11-21 | Asea Ab | Elektriskt isolermaterial omfattande ett isolerskikt av en organisk polymer samt anvaendning av isolermaterialet i en haerva. |
DE9211601U1 (de) * | 1991-08-30 | 1992-10-22 | Tridonic-Bauelemente GmbH, Dornbirn | Transformator oder Drosselspule |
DE4136176A1 (de) * | 1991-11-02 | 1993-05-06 | Asea Brown Boveri Ag, Baden, Aargau, Ch | Toroiddrossel |
JP2732822B2 (ja) * | 1995-12-28 | 1998-03-30 | デュポン帝人アドバンスドペーパー株式会社 | 複合体シートおよびその製造方法 |
US6737168B1 (en) * | 1999-06-14 | 2004-05-18 | Sumitomo Electric Industries, Ltd. | Composite material and semiconductor device using the same |
US20040105664A1 (en) * | 2002-12-03 | 2004-06-03 | Mladen Ivankovic | Linear electric motor controller and system for providing linear speed control |
EP1489113B1 (fr) * | 2002-03-14 | 2014-05-21 | Daikin Industries, Ltd. | Fluorocopolymere, procede de production de fluorocopolymere, composition de fluorocopolymere durcissable et objet durcissable |
EP1530223B1 (fr) * | 2002-07-04 | 2009-02-04 | Kabushiki Kaisha Toshiba | Element isolant a conductivite thermique elevee et son procede de fabrication, bobine electromagnetique et dispositif electromagnetique |
DE10247828B4 (de) * | 2002-10-14 | 2005-03-03 | Siemens Ag | Wärmeableitendes und -abstrahlendes Kuststoffgehäuse mit Kühl-/Tragrippen und umpritztem Kühlkörper und Verfahren zu dessen Fertigung |
-
2005
- 2005-06-02 DE DE202005008757U patent/DE202005008757U1/de not_active Expired - Lifetime
-
2006
- 2006-05-26 AT AT06010808T patent/ATE381766T1/de active
- 2006-05-26 DK DK06010808T patent/DK1729310T3/da active
- 2006-05-26 EP EP06010808A patent/EP1729310B1/fr active Active
- 2006-05-26 DE DE502006000228T patent/DE502006000228D1/de active Active
- 2006-05-26 ES ES06010808T patent/ES2299118T3/es active Active
- 2006-05-30 DE DE502006005568T patent/DE502006005568D1/de active Active
- 2006-05-30 ES ES06011057T patent/ES2337279T3/es active Active
- 2006-05-30 DK DK06011057.4T patent/DK1772877T3/da active
- 2006-05-30 AT AT06011057T patent/ATE451703T1/de active
- 2006-05-30 EP EP06011057A patent/EP1772877B1/fr active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1325184A (fr) * | 1962-04-26 | 1963-04-26 | Landis & Gyr Sa | Corps de bobine |
DE10203246A1 (de) * | 2002-01-21 | 2003-08-21 | Bombardier Transp Gmbh | Mittelfrequenz-Transformator |
DE10203246B4 (de) | 2002-01-21 | 2004-01-29 | Bombardier Transportation Gmbh | Mittelfrequenz-Transformator |
US20040036568A1 (en) * | 2002-08-22 | 2004-02-26 | Minebea Co., Ltd. | Coil bobbin with core spacing mechanisms |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1537937B1 (fr) * | 2003-12-05 | 2016-08-17 | Bosch Rexroth AG | Module d'un pistolet de soudage électrique par résistance |
EP3364430A1 (fr) * | 2017-02-17 | 2018-08-22 | ABB Schweiz AG | Transformateur de fréquence moyenne à c ur sec |
WO2018150027A1 (fr) * | 2017-02-17 | 2018-08-23 | Abb Schweiz Ag | Transformateur moyenne fréquence à noyau sec |
CN110268487A (zh) * | 2017-02-17 | 2019-09-20 | Abb瑞士股份有限公司 | 带有干芯的中频变压器 |
RU2748606C2 (ru) * | 2017-02-17 | 2021-05-28 | Абб Швайц Аг | Среднечастотный трансформатор с сухим сердечником |
CN110268487B (zh) * | 2017-02-17 | 2022-09-13 | 日立能源瑞士股份公司 | 带有干芯的中频变压器 |
US11557428B2 (en) | 2017-02-17 | 2023-01-17 | Hitachi Energy Switzerland Ag | Medium-frequency transformer with dry core |
Also Published As
Publication number | Publication date |
---|---|
ATE381766T1 (de) | 2008-01-15 |
DE202005008757U1 (de) | 2006-10-12 |
EP1729310B1 (fr) | 2007-12-19 |
DK1772877T3 (da) | 2010-04-26 |
EP1772877A1 (fr) | 2007-04-11 |
DE502006005568D1 (de) | 2010-01-21 |
DK1729310T3 (da) | 2008-05-05 |
ES2337279T3 (es) | 2010-04-22 |
ES2299118T3 (es) | 2008-05-16 |
EP1772877B1 (fr) | 2009-12-09 |
DE502006000228D1 (de) | 2008-01-31 |
ATE451703T1 (de) | 2009-12-15 |
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