EP2294591B1 - Water-cooled reactor - Google Patents
Water-cooled reactor Download PDFInfo
- Publication number
- EP2294591B1 EP2294591B1 EP09753402.8A EP09753402A EP2294591B1 EP 2294591 B1 EP2294591 B1 EP 2294591B1 EP 09753402 A EP09753402 A EP 09753402A EP 2294591 B1 EP2294591 B1 EP 2294591B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component according
- cooler
- flat
- coils
- cooling
- 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.)
- Not-in-force
Links
- 238000004804 winding Methods 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 21
- 239000002826 coolant Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 4
- 229920006255 plastic film Polymers 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003570 air Substances 0.000 description 5
- 239000000110 cooling liquid Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 101000927799 Homo sapiens Rho guanine nucleotide exchange factor 6 Proteins 0.000 description 1
- 102100033202 Rho guanine nucleotide exchange factor 6 Human genes 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 239000000919 ceramic Substances 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
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000013585 weight reducing agent 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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/16—Water cooling
-
- 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
- H01F27/2871—Pancake coils
-
- 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
Definitions
- Fig. 1 shows the principle of a simple, single-phase choke.
- a throttle 10 consists of a core sheet package 1 with two legs 2, 2 'and 2 yokes 3, 3'.
- the legs carry, for example, each 2 coils 4, 4 ', which are formed as single-layer disc coils, directly in between is a specially designed, double-acting flat cooler 5.
- the Einlagnier the disc coil causes each turn of the winding directly with a cooling surface in combination stands.
- a double-sided cooler can thus always cool 2 disc coils per leg, which has proven to be particularly advantageous.
- the insulating material used has a high insulation strength with sufficient thermal conductivity and mechanical pressure resistance. To equalize the contact pressure of the coils on the cooling surfaces latter with a special, relative soft, heat-conducting plastic film occupied, which also has a thickness of a few tenths of mm.
- the executed throttle shows as a result of the cooling measures taken both a weight reduction, as well as a volume reduction by about a factor of 2.5 compared to a forced air-cooled throttle equal construction capacity and conventional design with tubular layer winding. It is basically possible to apply the cooling arrangement according to the invention to other electromagnetic components, such as ironless chokes and transformers in general, and in particular to medium frequency transformers.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Transformer Cooling (AREA)
Description
Die Erfindung betrifft eine elektromagnetische Komponente (Drossel, Transformator) gemäss Patentanspruch 1, Verwendungen derselben gemäss den Patentansprüchen 9 und 10 sowie ein Verfahren gemäss Patentanspruch 11.The invention relates to an electromagnetic component (throttle, transformer) according to claim 1, uses thereof according to
In stromrichtergespeisten Anlagen müssen für Glättungs- und Filterzwecke oft in erheblichem Umfang Drosseln eingesetzt werden, die hohe Verluste produzieren, schwierig zu kühlen sind und vergleichsweise hohe Gewichte und Volumina aufweisen. Dies ist besonders unangenehm, wenn solche Bauteile in Schränke eingebaut werden sollen.In rectifier-fed plants, throttles often have to be used for smoothing and filtering purposes which produce high losses, are difficult to cool and have comparatively high weights and volumes. This is particularly unpleasant when such components are to be installed in cabinets.
Im unteren industriellen Leistungsbereich bis etwa 1MW Anlagenleistung werden induktive Leistungskomponenten aus Aufwandgründen oft natürlich, d.h. mit Umgebungsluft gekühlt, darüber meist mit forcierter Luftumwälzung. Dabei wird Luft z.B. durch besondere in der Wicklung ausgesparte Luftkanäle gedrückt. Durch diese Massnahmen steigt das Drosselgewicht und Volumen an, sowie ungünstigerweise auch der Kupferbedarf. Eine gute spezifische Kühlwirkung kann ausserdem nur durch Erhöhen der Wicklungstemperatur erreicht werden, was für die Einbauumgebung sehr störend ist.In the lower industrial power range up to about 1MW plant power, inductive power components often become natural, for reasons of economy, i. cooled with ambient air, usually with forced air circulation. In this case, air is e.g. pressed by special in the winding recessed air channels. These measures increase the throttle weight and volume, and unfavorably also the copper demand. A good specific cooling effect can also be achieved only by increasing the winding temperature, which is very disturbing for the installation environment.
Induktive Bauteile für Mittelfrequenzbetrieb, z.B. Transformatoren für induktive Erwärmungsanlagen, die im kHz-Bereich arbeiten, erzeugen hohe Verluste, die praktisch nur mittels Wasserkühlung abzuführen sind. Hier ist Stand der Technik, die Wicklung aus Rohren oder speziellen Hohlleitern zu bilden, wobei diese Rohre von einer Kühlflüssigkeit durchströmt werden. Da diese Kühlflüssigkeit das elektrische Potential des umgebenden Leiters aufweist, muss sie isolierend sein, z.B. bei Verwendung von Wasser muss das Wasser entionisiert werden. Aufbau und Kühlung sind bei direkter Leiterkühlung aufwendig und werden bei konventionellen Industrieanlagen deshalb kaum eingesetzt.Inductive components for medium frequency operation, eg transformers for inductive heating systems, which work in the kHz range, generate high losses, which are dissipate practically only by means of water cooling. Here is state of the art to form the winding of tubes or special waveguides, these tubes are flowed through by a cooling liquid. Since this cooling liquid has the electrical potential of the surrounding conductor, it must be insulating, for example, when using water, the water must be deionized. Construction and cooling are costly in direct conductor cooling and therefore in conventional industrial plants hardly used.
Nach dem Patentdokument
- Erhebliche Reduktion von Gewicht und Volumen um mindestens einen Faktor zwei;
- insbesondere eine Reduktion des spezifischen Kupferanteiles für die Wicklung;
- freie Wahl des Kühlmittels insbesondere die Möglichkeit einer Brauchwasserkühlung;
- Betrieb der Wicklungen bei Oberflächentemperaturen bis 100 °C, wodurch sich die Komponente für einen Schrankeinbau eignet.
- Substantial reduction in weight and volume by at least a factor of two;
- in particular a reduction of the specific copper content for the winding;
- free choice of the coolant, in particular the possibility of hot water cooling;
- Operation of the windings at surface temperatures up to 100 ° C, making the component suitable for cabinet installation.
Die Erfindung wird im Folgenden anhand der Figuren näher erläutert. Es zeigen:
- Fig. 1
- Prinzip einer einfachen, einphasigen Drossel
- Fig. 1A
- Seitenansicht zu
Fig. 1 - Fig. 1B
- Draufsicht zu
Fig. 1 - Fig. 2
- wassergekühlte dreiphasig ausgeführte Filter-Drossel für eine Stromrichteranlage
- Fig. 2A
- Seitenansicht zu
Fig. 2 - Fig. 2B
- Draufsicht zu
Fig. 2 - Fig. 3
- Geometrie des Flachkühlers
- Fig. 3A
- Seitenansicht zu
Fig. 3 - Fig. 3B
- Draufsicht zu
Fig. 3 - Fig. 4
- Windungpaket mit 8 Scheibenspulen
- Fig. 4A
- Seitenansicht zu
Fig. 4 - Fig. 4B
- Draufsicht zu
Fig. 4 - Fig. 5
- Seitenansicht einer erfindungsgemässen Komponente mit wassergekühltem Eisenkern.
- Fig. 1
- Principle of a simple, single-phase choke
- Fig. 1A
- Side view too
Fig. 1 - Fig. 1B
- Top view to
Fig. 1 - Fig. 2
- Water-cooled three-phase filter choke for a converter system
- Fig. 2A
- Side view too
Fig. 2 - Fig. 2B
- Top view to
Fig. 2 - Fig. 3
- Geometry of the flat cooler
- Fig. 3A
- Side view too
Fig. 3 - Fig. 3B
- Top view to
Fig. 3 - Fig. 4
- Winding package with 8 disc coils
- Fig. 4A
- Side view too
Fig. 4 - Fig. 4B
- Top view to
Fig. 4 - Fig. 5
- Side view of an inventive component with water-cooled iron core.
Die Erfindung betrifft eine Bauform, bzw. eine Technologie für elektromagnetische Bauteile (Drosseln, Transformatoren), die aus einer oder mehreren scheibenförmigen Spulen bestehen mit unmittelbar anliegenden, elektrisch isolierten, plattenförmigen Kühlelementen, die von einem Kühlmedium durchströmt werden.The invention relates to a design, or a technology for electromagnetic components (chokes, transformers), which consist of one or more disc-shaped coils with directly adjacent, electrically insulated, plate-shaped cooling elements, which are flowed through by a cooling medium.
Der Flachkühler 5 muss isolierend ausgeführt sein. Dafür kann ein Kühler in Voll-Kunststofftechnik verwendet werden, wobei das Kühlmedium bzw. die Kühlflüssigkeit vollkommen von Kunststoff umgeben ist und die anliegenden Windungen elektrisch isoliert werden. Möglich ist auch die Verwendung eines Metallkühlers, der mit einer Isolierschicht versehen ist. Der Flachkühler 5 kann als mehrschichtige Metall-Konstruktion mit innenliegender Kühlstruktur und aussenliegender Kunststoffisolation ausgebildet sein, wobei diese Kunststoffschicht den Kühler vollständig umschliesst. Als Metalle eignen sich Aluminium und Stahl sowie deren Legierungen besonders gut. Es hat sich überraschernder Weise gezeigt, dass die Verwendung von rostfreiem, nichtmagnetischem Stahl besonders vorteilhaft ist, da dadurch die schädlichen und unerwünschten Wirbelstromverluste im Vergleich zu Aluminium um einen Faktor grösser als 4 herabgesetzt werden.
Zur Verbesserung des Wärmeüberganges zwischen Spulenscheibe (Scheibenspule) und angrenzender Oberfläche des Flachkühlers wird eine thermisch leitende Kunststofffolie geringer Härte und nachgiebigen bzw. nachgebenden Eigenschaften von einigen Zehntel mm Dicke eingesetzt. Damit der Wärmetransport maximiert werden kann, müssen die Wärmekontaktflächen planparallel und mit genügend Druck kontaktiert werden. Die beteiligten elektrischen Leiter- und Kühlerisolationen müssen eine möglichst hohe Wärmeleitfähigkeit bei gleichzeitiger Spannungsfestigkeit aufweisen. Diese Anforderungen können nurdurch sorgfältige Auswahl moderner Werkstoffe erfüllt werden, wie z.B. durch keramikgefüllte Polymere bzw. Kunststoffe allgemein.
Der Aufbau von Flachkühlern und Scheibenspulen weist in der Regel Luftspälte auf, in denen sich speziell ausgebildete Luftspalteinlagen befinden.The
To improve the heat transfer between the coil disc (disk coil) and the adjacent surface of the flat cooler, a thermally conductive plastic film of low hardness and yielding properties of a few tenths mm thickness is used. In order to maximize the heat transfer, the heat contact surfaces must be contacted plane-parallel and with sufficient pressure. The electrical conductor and cooler insulations involved must have the highest possible thermal conductivity with simultaneous dielectric strength. These requirements can only be met by careful selection of modern materials, such as ceramic-filled polymers or plastics in general.
The construction of flat coolers and disc coils generally has air gaps, in which there are specially designed air gaps.
Die Spule kann auch mit der Kühleroberfläche elastisch und wärmeleitend verklebt werden.
Zur Verbesserung des Wärmetransportes von der Kühlflüssigkeit auf die Kühlfläche ist der Kühler inwendig zur Vergrösserung der Innenfläche strukturiert.The coil can also be glued to the radiator surface elastic and heat-conducting.
To improve the heat transfer from the cooling liquid to the cooling surface of the cooler is internally structured to increase the inner surface.
Die Anzahl der Flachkühler-Einheiten in einem Bauteil muss aus Aufwandsgründen möglichst niedrig gehalten werden. Im Beispiel gemäss
Die Drossel besitzt einen Eisenkern mit 3 bewickelten Schenkeln 2, 2', 2". Jeder Schenkel besitzt in diesem Beispiel 8 einlagige Flachspulen 4, 4' (Scheiben). Zwischen jeweils 2 Spulenscheiben jedes Schenkels, die auf gleicher Einbauebene sitzen, ist ein Flachkühler 5 vorgesehen. Dieser Flachkühler ist somit 3-teilig und kühlt insgesamt 8 Spulen. Gesamthaft werden in dieser Anordnung 4 Flachkühler benötigt, wobei erfindungsgemäss jede einzelne Windung der gesamten Wicklung der Drossel mit einer Kühlerfläche in direktem Kontakt steht und so optimal gekühlt werden kann. Der gesamte Stapelaufbau wird über eine Pressvorrichtung 6 zusammengehalten, die den Anpressdruck zwischen Spulenscheiben und den Oberflächen der Flachkühler aufrecht erhält.
In diesem Beispiel sind alle Spulenscheiben, die zu einem Schenkel gehören, elektrisch in Serie geschaltet und werden somit vom gleichen elektrischen Strom durchflossen. Alternativ sind die Spulenscheiben parallel geschaltet. Die Kühlflüssigkeit wird dagegen zur Verbesserung der Kühlwirkung und zur Kleinhaltung des Druckabfalles über einen Wasserverteiler parallel in alle 4 Flachkühler ein- und ausgeleitet.
In this example, all the coil discs that belong to a leg, electrically connected in series and thus flows through the same electric current. Alternatively, the coil disks are connected in parallel. On the other hand, the cooling liquid is introduced and discharged in parallel into all four flat coolers via a water distributor in order to improve the cooling effect and keep the pressure drop small.
Die Flachkühler bestehen aus mehreren zusammengeschweissten Aluminium- oder Stahlplatten, die zusammen eine Dicke von weniger als 8 mm haben. Die mittleren, wasserführenden Platten in diesem Lagenaufbau sind zur Vergrösserung der Wärmeübergangsfläche mittels Noppen strukturiert.
Aus isolationstechnischen Gründen sind die Kühlerplatten durchgehend, d.h. gesamtflächig mit einer Isolierschicht von einigen Zehntel mm überzogen. Das verwendete Isoliermaterial hat eine hohe Isolationsfestigkeit bei ausreichender Wärmeleitfähigkeit und mechanischer Druckfestigkeit. Zur Vergleichmässigung des Auflagedruckes der Spulen auf die Kühlflächen sind letztere mit einer speziellen, relativ weichen, wärmeleitenden Kunststofffolie belegt, die ebenfalls eine Dicke von einigen Zehntel mm aufweist.
The flat coolers consist of several welded together aluminum or steel plates, which together have a thickness of less than 8 mm. The middle, water-carrying plates in this layer structure are structured to increase the heat transfer surface by means of knobs.
For insulation reasons, the radiator plates are continuous, ie over the entire surface covered with an insulating layer of a few tenths of a mm. The insulating material used has a high insulation strength with sufficient thermal conductivity and mechanical pressure resistance. To equalize the contact pressure of the coils on the cooling surfaces latter with a special, relative soft, heat-conducting plastic film occupied, which also has a thickness of a few tenths of mm.
Die erwähnten 8 Spulen eines Schenkels können als Einzelspulen gewickelt werden und müssten dann alle einzeln - im Beispiel in Serie - geschaltet werden. Bei der ausgeführten Drossel wurden diese störenden Serieverbindungen durch eine spezielle Wickeltechnik vermieden. Dabei werden im Stapel übereinander liegende Spulen teilweise im Gegensinn gewickelt, wodurch jede zweite Serieverbindung ins Spuleninnere verlagert wird. Dadurch wird es möglich, die Serieverbindungen genau in die oben erwähnten Aussparungen des Flachkühlers zu legen.
Ein Flachkühler 5 kann mehrere Spulen 4, 4' einer Wicklungsanordnung tragen, z.B. jeweils 2 Spulen jeder Phase einer mehrphasigen Anordnung, wobei der Flachkühler durch die Formgebung und die Materialwahl so gestaltet ist, dass er möglichst geringe Wirbelstromverluste aufweist.
Vorteilhafterweise eignet sich als Flachkühlerisolation ein Kunststoff mit Füllung, wofür ein wärmeleitendes, isolierendes Metalloxid wie z.B. Aluminiumoxid oder ein Karbid zwischen 20 - 50% dem Kunststoff beigefügt wird.
Zur Verbesserung des Wärmeüberganges zwischen Spulenscheibe (Scheibenspule) und angrenzender Oberfläche des Flachkühlers kann eine thermisch leitende Kunststofffolie mit Dicken von 0,1 - 0,4 mm eingesetzt werden oder eine Verklebung mit einem wärmeleitenden Kleber.
The mentioned 8 coils of a leg can be wound as single coils and then have to be switched individually - in the example in series -. With the choke executed these disturbing series connections were avoided by a special winding technique. In this case, stacked coils are partially wound in the opposite direction in the stack, whereby every second series connection is shifted into the coil interior. This makes it possible to place the series connections exactly in the above-mentioned recesses of the flat cooler.
A
Advantageously, as a flat cooler insulation is a plastic with filling, for which a thermally conductive, insulating metal oxide such as alumina or a carbide between 20 - 50% is added to the plastic.
To improve the heat transfer between the coil disc (disc coil) and adjacent surface of the flat cooler, a thermally conductive plastic film with thicknesses of 0.1 - 0.4 mm can be used or a bond with a thermally conductive adhesive.
Die Scheibenspulen 4, 4' einer Phase bzw. eines Aufbaustapels werden so gewickelt, dass aussenliegende, im Bereich des Flachkühlers liegende Verbindungen vermieden werden und dass die innenliegenden Serieverbindungen 13 in die hierfür vorgesehenen Aussparungen der zugeordneten Kühlerplatte passen.
The disk coils 4, 4 'of a phase or a build-up stack are wound in such a way that external connections lying in the region of the flat cooler are avoided and that the
Die ausgeführte Drossel zeigt infolge der getroffenen Kühlmassnahmen sowohl eine Gewichtsreduktion, als auch eine Volumenreduktion um etwa Faktor 2,5 gegenüber einer forciert luftgekühlten Drossel gleicher Bauleistung und konventioneller Bauart mit röhrenförmiger Lagenwicklung.
Es ist grundsätzlich möglich, die erfindungsgemässe Kühlanordnung auch bei anderen elektromagnetischen Komponenten anzuwenden, wie etwa bei eisenlosen Drosseln und Transformatoren im Allgemeinen und im Besonderen bei Mittelfrequenztransformatoren.The executed throttle shows as a result of the cooling measures taken both a weight reduction, as well as a volume reduction by about a factor of 2.5 compared to a forced air-cooled throttle equal construction capacity and conventional design with tubular layer winding.
It is basically possible to apply the cooling arrangement according to the invention to other electromagnetic components, such as ironless chokes and transformers in general, and in particular to medium frequency transformers.
Ein Verfahren zur Herstellung der Komponente zeichnet sich dadurch aus, dass der Flachkühler 5 mit der Scheibenspule 4 wärmeleitend verklebt wird. Dadurch bilden der Flachkühler und die Scheibenspule eine modulare Einheit.A method for producing the component is characterized in that the
Verwendungen finden derartige Komponenten in wassergekühlten Stromrichteranlagen und in Mittelfrequenzanlagen, insbesondere zur induktiven Erwärmung.Uses find such components in water-cooled power converter systems and in medium-frequency systems, in particular for inductive heating.
Claims (11)
- Liquid-cooled electromagnetic component, especially a choke or transformer, consisting of a plurality of disc-shaped coils with one or more windings and flat coolers located therebetween, wherein at least two disk coils (4, 4 ') are assigned to a flat cooler (5), wherein each disk coil has winding elements in form of windings of the coil, each of which is in direct thermal contact with the surfaces of the flat coolers via a heat-conducting insulating layer, wherein a cooling medium is provided for cooling, which is potential-isolated from the winding element by the insulating layer, and wherein the flat cooler (5) a multi-layer metal construction having an internal cooling structure and external plastic insulation is used, wherein said plastic layer completely surrounds the cooler, characterized in, characterized in that the metal structure consists of stainless, non-magnetic steel.
- Component according to claim 1, characterized in that the plastic contains a filling which improves the thermal conductivity.
- Component according to one of claims 1 - 2, characterized in that, in order to improve the heat transfer between the coil disk (disk coil) and adjoining surface of the flat cooler a thermally conductive plastic film of low hardness and yielding or yielding properties of a few tenths of a mm thickness is installed.
- Component according to one of claims 1 - 3, characterized in that the disc coils (4, 4') of a winding arrangement are forced into close contact with the surfaces of the flat cooler by means of a mechanical pressing arrangement (6).
- Component according to one of claims 1 - 4, characterized in that the disc coils (4, 4') are directly bonded to the radiator surface in a heat-conducting manner.
- Component according to one of claims 1 - 5, characterized in that the disc coils (4, 4') of a phase or build-up stack are coiled in such a way that external connections lying in the region of the flat cooler are avoided and that the internal series connections (13) fit into the recesses of an associated radiator plate provided for this purpose.
- Component according to one of claims 1 - 6, characterized in that a yoke (3) is surrounded by metal plates (14,14'), preferably aluminum plates, which have metal tubes welded at the ends (16), preferably aluminum tubes, and that the same or a different cooling medium is guided through the metal tubes, whereby an efficient cooling of copper and iron results.
- Component according to claim 7, characterized in that the cooling medium passes initially through the flat cooler (5), and only thereafter the metal tubes (16).
- Use of the component according to one of claims 1-8 in water-cooled converter systems.
- Use of the component according to one of claims 1 -8 in medium-frequency systems, in particular for inductive heating.
- Method for producing the component according to one of claims 1 - 8, characterized in that the flat cooler (5) is adhesively bonded in a heat-conducting manner to the disk coil (4) and in that a modular unit is thereby formed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH7962008 | 2008-05-27 | ||
| CH00714/09A CH698904A2 (en) | 2008-05-27 | 2009-05-07 | Water-cooled reactor. |
| PCT/CH2009/000173 WO2009143643A1 (en) | 2008-05-27 | 2009-05-25 | Water-cooled reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2294591A1 EP2294591A1 (en) | 2011-03-16 |
| EP2294591B1 true EP2294591B1 (en) | 2018-04-25 |
Family
ID=40983338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09753402.8A Not-in-force EP2294591B1 (en) | 2008-05-27 | 2009-05-25 | Water-cooled reactor |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8462506B2 (en) |
| EP (1) | EP2294591B1 (en) |
| CN (1) | CN102047357B (en) |
| CH (1) | CH698904A2 (en) |
| WO (1) | WO2009143643A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100277869A1 (en) * | 2009-09-24 | 2010-11-04 | General Electric Company | Systems, Methods, and Apparatus for Cooling a Power Conversion System |
| CN101954525A (en) * | 2010-09-27 | 2011-01-26 | 东莞市大忠电子有限公司 | EI Type Transformer Core Argon Arc Welding Process |
| DE102011007334A1 (en) | 2011-04-13 | 2012-10-18 | Karl E. Brinkmann GmbH | Liquid-cooled inductive component |
| CN102506532A (en) * | 2011-10-18 | 2012-06-20 | 中山普润斯电源设备技术有限公司 | Water cooling device |
| KR101610493B1 (en) * | 2014-08-26 | 2016-04-07 | 현대자동차주식회사 | Device for cooling transformer |
| EP3288046B1 (en) | 2016-08-25 | 2021-04-14 | Siemens Aktiengesellschaft | Coil device |
| DE202016105224U1 (en) | 2016-09-19 | 2016-11-11 | Trafomodern Transformatorengesellschaft M.B.H. | Arrangement of a fluid-cooled electromagnetic component |
| KR101965266B1 (en) * | 2017-08-02 | 2019-04-03 | 한국알박(주) | Manufacturing method of electromagnet assembly |
| EP3881343A1 (en) * | 2018-11-12 | 2021-09-22 | Carrier Corporation | Cooled transformer for an energy storage device |
| CN110660563A (en) | 2019-10-12 | 2020-01-07 | 台达电子企业管理(上海)有限公司 | Magnetic assembly and power module |
| AU2020439973A1 (en) * | 2020-03-31 | 2022-11-10 | Ge Energy Power Conversion Technology Limited | Liquid/fluid cooling systems for high power-density (HPD) transformers |
| GB2597470B (en) * | 2020-07-22 | 2023-01-11 | Murata Manufacturing Co | Thermal management of transformer windings |
| CN113674960B (en) * | 2021-10-21 | 2021-12-24 | 江苏顺隆鸿泰电力设备有限公司 | a transformer |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1471096A (en) * | 1919-05-08 | 1923-10-16 | Gen Electric | Electrical apparatus |
| US2819431A (en) * | 1952-12-05 | 1958-01-07 | Louis R Maxwell | Electromagnet |
| DE1057219B (en) | 1958-02-26 | 1959-05-14 | Konrad Reichert Dipl Ing | Medium and high frequency power transformer |
| US3501272A (en) * | 1966-02-28 | 1970-03-17 | Standard Oil Co | Carbon purification process |
| US4485289A (en) * | 1982-07-29 | 1984-11-27 | Schwartz Charles A | Welding system |
| DE3404457A1 (en) * | 1984-02-08 | 1985-08-08 | Siemens AG, 1000 Berlin und 8000 München | DEVICE FOR COOLING A MAGNETIC SYSTEM |
| FR2630612B1 (en) * | 1988-04-26 | 1996-05-24 | Siderurgie Fse Inst Rech | DEVICE FOR PROTECTING INDUCER POLES AND INDUCER PROVIDED WITH SUCH DEVICE |
| US4956626A (en) * | 1989-01-13 | 1990-09-11 | Sundstrand Corporation | Inductor transformer cooling apparatus |
| US5097241A (en) * | 1989-12-29 | 1992-03-17 | Sundstrand Corporation | Cooling apparatus for windings |
| JPH0864442A (en) * | 1994-04-29 | 1996-03-08 | Hughes Aircraft Co | High frequency transformer with liquid cooling winding inside |
| US6259347B1 (en) * | 1997-09-30 | 2001-07-10 | The United States Of America As Represented By The Secretary Of The Navy | Electrical power cooling technique |
| JP3279521B2 (en) * | 1998-02-28 | 2002-04-30 | 三星電子株式会社 | Microwave oven high voltage transformer with heat dissipation structure |
| US6163241A (en) * | 1999-08-31 | 2000-12-19 | Stupak, Jr.; Joseph J. | Coil and method for magnetizing an article |
| WO2005082226A1 (en) * | 2004-02-27 | 2005-09-09 | Olympus Corporation | Endoscope |
| DE102004021107A1 (en) * | 2004-04-29 | 2005-11-24 | Bosch Rexroth Ag | Liquid cooling for iron core and winding packages |
| US7129808B2 (en) * | 2004-09-01 | 2006-10-31 | Rockwell Automation Technologies, Inc. | Core cooling for electrical components |
-
2009
- 2009-05-07 CH CH00714/09A patent/CH698904A2/en not_active Application Discontinuation
- 2009-05-25 US US12/994,648 patent/US8462506B2/en not_active Expired - Fee Related
- 2009-05-25 CN CN2009801192167A patent/CN102047357B/en not_active Expired - Fee Related
- 2009-05-25 WO PCT/CH2009/000173 patent/WO2009143643A1/en not_active Ceased
- 2009-05-25 EP EP09753402.8A patent/EP2294591B1/en not_active Not-in-force
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| US8462506B2 (en) | 2013-06-11 |
| WO2009143643A1 (en) | 2009-12-03 |
| CN102047357B (en) | 2012-12-26 |
| CH698904A2 (en) | 2009-11-30 |
| CN102047357A (en) | 2011-05-04 |
| US20110075368A1 (en) | 2011-03-31 |
| EP2294591A1 (en) | 2011-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2294591B1 (en) | Water-cooled reactor | |
| DE69732321T2 (en) | Highly efficient induction cooker | |
| EP3127218B1 (en) | Hollow electrical conductor for an electrical machine | |
| DE60125493T2 (en) | Improved heat sink for an inverter of an electric motor | |
| DE102019215015A1 (en) | Transverse flux machine | |
| DE102021108954A1 (en) | Stator of an axial flux electric machine and axial flux machine | |
| DE102011013684B4 (en) | Electrical component with at least one arranged in a potting electrical power loss source and a cooling device | |
| DE3836415A1 (en) | ELECTROMAGNETIC DEVICE WITH COOLING DEVICE | |
| DE3939017A1 (en) | Inductive heater for a plastics extruder | |
| DE10138164A1 (en) | Linear motor has base with coil channel and heat conduction hole, which is interposed between guide boards of stator | |
| DE102011007334A1 (en) | Liquid-cooled inductive component | |
| DE19854439C2 (en) | Transformer - especially cast resin transformer | |
| EP2743942A2 (en) | Power construction element device | |
| DE10048492A1 (en) | Stator for axial field electrical machine, has stator coils positioned between radial spokes projecting inwards from stator ring | |
| EP3288046B1 (en) | Coil device | |
| EP2751814B1 (en) | Transformer and method of manufacturing thereof | |
| EP1869757B1 (en) | Primary part of a linear motor and linear motor therewith | |
| EP4320708A1 (en) | Stator of an electric axial flux machine, and axial flux machine | |
| EP3622615B1 (en) | Motor component for a linear motor | |
| EP3494584B1 (en) | Electrical device having a plurality of cooling units | |
| EP2977996A1 (en) | Choke coil of a power converter | |
| DE10312441B4 (en) | Traveling wave machine | |
| DE19920268C1 (en) | Inductive device e.g. choke coil or transformer, has laminations of magnetic circuit offset relative to one another in vicinity of electrical circuit for increasing magnetic circuit surface | |
| WO2003003544A1 (en) | Electric motor comprising thermally conductive pipes | |
| DE102010030411A1 (en) | Inductor for use in e.g. mobile phone, has foil-wound windings whose edge extends out at front surface of coil and forms common core gap, where electrical and heat conducting insulation layers are arranged in gap or at front surface of coil |
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: 20101222 |
|
| 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) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: WOODWARD IDS SWITZERLAND AG |
|
| 17Q | First examination report despatched |
Effective date: 20160811 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20170712 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
| AK | Designated contracting states |
Kind code of ref document: B1 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 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 993717 Country of ref document: AT Kind code of ref document: T Effective date: 20180515 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502009014913 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20180425 |
|
| REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 10 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180725 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180725 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180726 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180827 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502009014913 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20180531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180531 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180531 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180525 |
|
| 26N | No opposition filed |
Effective date: 20190128 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180525 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180531 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 993717 Country of ref document: AT Kind code of ref document: T Effective date: 20180525 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180525 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20090525 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180425 Ref country code: MK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180425 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180825 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502009014913 Country of ref document: DE Owner name: KK WIND SOLUTIONS A/S, DK Free format text: FORMER OWNER: WOODWARD IDS SWITZERLAND AG, ZUERICH, CH Ref country code: DE Ref legal event code: R082 Ref document number: 502009014913 Country of ref document: DE Representative=s name: COHAUSZ & FLORACK PATENT- UND RECHTSANWAELTE P, DE Ref country code: DE Ref legal event code: R081 Ref document number: 502009014913 Country of ref document: DE Owner name: CONVERTERTEC DEUTSCHLAND GMBH, DE Free format text: FORMER OWNER: WOODWARD IDS SWITZERLAND AG, ZUERICH, CH |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20210805 AND 20210811 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230517 Year of fee payment: 15 Ref country code: DE Payment date: 20230519 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20230522 Year of fee payment: 15 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502009014913 Country of ref document: DE Owner name: KK WIND SOLUTIONS A/S, DK Free format text: FORMER OWNER: CONVERTERTEC DEUTSCHLAND GMBH, 47906 KEMPEN, DE |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20231123 AND 20231129 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502009014913 Country of ref document: DE |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20240525 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20241203 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20240531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20240525 |