EP3065129A1 - Assembly for reducing the noise emissions of a transformer or a throttle - Google Patents

Assembly for reducing the noise emissions of a transformer or a throttle Download PDF

Info

Publication number
EP3065129A1
EP3065129A1 EP15157123.9A EP15157123A EP3065129A1 EP 3065129 A1 EP3065129 A1 EP 3065129A1 EP 15157123 A EP15157123 A EP 15157123A EP 3065129 A1 EP3065129 A1 EP 3065129A1
Authority
EP
European Patent Office
Prior art keywords
transformer
metal
boiler
spring
cavity
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
Application number
EP15157123.9A
Other languages
German (de)
French (fr)
Other versions
EP3065129B1 (en
Inventor
Maximilian Brunnegger
Helmut Pregartner
Horst RECHBERGER
Monther Sari
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP15157123.9A priority Critical patent/EP3065129B1/en
Publication of EP3065129A1 publication Critical patent/EP3065129A1/en
Application granted granted Critical
Publication of EP3065129B1 publication Critical patent/EP3065129B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • 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
    • H01F27/33—Arrangements for noise damping
    • 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

Definitions

  • the invention relates generally to the technical field of electrical transformers and chokes, with an active part, which is arranged in a boiler and surrounded by an insulating and cooling liquid.
  • At least one volume-elastic panel is provided in the interior of the boiler.
  • the panel has a vacuum applied to the cavity, which is at least partially bounded by a metal membrane.
  • a metallic spring means is provided, which is supported on the metal diaphragm under a bias voltage. This ensures that liquid sound waves that propagate in the insulation and cooling liquid in the longitudinal direction are at least partially absorbed by the elastic deformation of the metal membrane. The sound energy is absorbed by the deformation work of the metal membrane and the metallic spring.
  • the stiffness is determined by the interaction of metal membrane, spring element and applied negative pressure.
  • each volume-elastic panel is formed in each case by two mutually opposite metal membranes and a peripheral rigid membrane frame.
  • Each metal membrane is attached to the membrane frame liquid-tight or gas-tight, for example, by a welded joint or solder joint.
  • the spring device is supported on one and on the other metal diaphragm under bias.
  • the rigidity of the volume-elastic element or panel can be predetermined in a simple manner by the negative pressure set in the cavity and the preload between spring and metal membrane. This facilitates the adaptation to different sizes and types of transformers or chokes.
  • the spring device is a flat-shaped spring which has bow-shaped leaf-spring elements which alternately engage in each case on one of the two metal diaphragms are supported. This allows the Damping effect can be maintained almost unchanged over many years, without requiring additional maintenance would be required.
  • the alternately bow-shaped, protruding leaf spring ribs can be easily punched and bent from a metal sheet. The production costs are low.
  • Another preferred embodiment of the invention is characterized in that the flat shape spring is bent to an omega shape. Even with this omega-shape of the spring is achieved that the mechanical wear between the metal diaphragm and metallic spring element is so low that the reliability of the damping effect over a long period of operation without special maintenance is possible.
  • Leaf spring or omega spring can be easily produced as stamped and bent moldings, the production is particularly simple and inexpensive.
  • an embodiment in which the spring device is a wire mesh, which is arranged adjacent to the inner surface of each metal diaphragm, can also be favorable.
  • the cavity can be completely or only partially filled with such a wire mesh.
  • the volume-elastic panel has a prismatic basic body. Due to this plate shape, the placement in the boiler of a transformer is usually possible without major structural changes.
  • a closable opening for example a threaded hole, is provided for producing the negative pressure in the cavity.
  • the negative pressure can be generated in a simple manner in the production of the volume-elastic panel and the tight closure of the opening can be done easily by a sealing screw.
  • FIG. 1 shows in a plan view of a boiler 1 of a transformer, an active part 2 in an insulating and cooling liquid 4.
  • a plurality of plate-shaped volume-elastic panels 3 are arranged in an intermediate region 11 between the active part 2 and boiler wall. These panels 3 have a distance both to the boiler wall and to the windings or to the yoke of the active part 2.
  • these panels 1 are arranged vertically suspended in the boiler, wherein the fastening means are not shown.
  • the cross section of the panels 3 is rectangular.
  • the prismatic body can be accommodated in a simple manner in the interior of the boiler 1.
  • FIG. 2 shows a side view of the illustration according to FIG. 1 .
  • On display are the vertically arranged panels 3, which extend over the entire length of the core leg of the active part 2. The vertical length can reach more than 10 m for a power transformer.
  • On the panel 3 acts in such an arrangement, a hydrostatic pressure of about 1 bar.
  • panels 3 are shown, which are arranged in a gap 11 between the cover and the bottom part of the boiler 1.
  • each of these volume-elastic panels 3 acts with respect to the liquid sound waves as a resilient metal bellows, a so-called "metal bellow".
  • the goal here is, by a yielding Deformation behavior to reduce the pressure pulsations in the boiler 1.
  • the liquid sound waves may have pressure fluctuations in the amount of about 100 mbar.
  • FIG. 1 and FIG. 3 illustrated arrangement of the panels 3 in the interior of the boiler 1 is achieved that emitted by the active part 2 pressure pulsations of the insulating and cooling liquid 4 are reduced by the panels 3 in their intensity. Consequently, the accumulating on the walls of the boiler 1 liquid sound waves are less energetic in intensity. The vibration excitation of the boiler walls is lower. The boiler radiates less operating noise. In addition, the mechanical design of the boiler 1 is relieved. The rigid coupling between the active part and boiler 1 is less strong. This also reduces the dynamic load that acts on the boiler.
  • volume-elastic panels 3 will now be shown in more detail and explained in more detail in their effect.
  • FIG. 3 shows a first embodiment of a volume-elastic panel 3.
  • the volume-elastic panel 3 consists of a rigid rectangular cross-section frame 8, the front side each spans a surface which is covered with a metal membrane 6 and 6 '.
  • the metal membrane 6, 6 ' is a flat thin-walled steel sheet, which is fixed on the membrane frame 8 at the edge by a continuous weld.
  • the connection between metal diaphragm 6 or 6 'and frame 8 is sealed, both to liquid and to gas.
  • a spring element 7 is arranged in the cavity 5.
  • the spring element 7 is in the illustrated embodiment, a flat shape-spring which bow-shaped leaf spring elements 9 has.
  • each of the leaf springs 7 yields elastically, in both the one and the other direction of deformation. Since the spring device 7 is not bounded laterally, it differs in its planar extension, which is best based on the section AA in FIG. 4 can be seen.
  • the spring element 7 can be seen in a perspective view.
  • the flat-form spring consists of adjacent parallel leaf spring elements 9. These elements 9 are rib-shaped. Parallel ribs are alternately bent bow-shaped on one side and then on the other side.
  • Each bracket 9 opens in each case with its end in a peripheral fixing region 12.
  • the material used is a rust-resistant spring steel sheet. The transition between bracket 9 and fixing area 12 is of uniform material.
  • FIG. 6 shows in a cross-sectional view of another embodiment of the spring element 7.
  • the spring element 7 is an omega-shaped spring made of a stainless spring steel.
  • This omega spring lies again with its to the metal membrane 6, 6 'showing mushroom-shaped sections flat on the inner surface of a metal membrane 6 and 6 'at. This again ensures that the friction partners 6 and 6 and 7 lie flat against each other, whereby the wear is very low. The damping characteristic is therefore unchanged over a long period of operation.
  • FIG. 7 finally shows a third embodiment of the volume-elastic panel 3, in which the spring element 7 is formed by a metal mesh in the interior 5.
  • the spring element 7 and the frame 8 and metal membranes 6, 6 'made of a stainless steel This has the advantage that corrosion-induced aging is hardly to be expected even during a long period of operation, as a result of which the liquid-sound absorption effect of the panel 3 is also retained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Vibration Prevention Devices (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

Anordnung zur Verringerung der Geräuschimmission eines elektrischen Transformators oder einer Drossel, umfassend:
- einen Kessel (1), der mit einer Isolations- und Kühlflüssigkeit (4) gefüllt ist,
- ein Aktivteil (2), der im Kessel (1) angeordnet ist,
- wobei,
- im Kessel (1) zumindest ein volumenelastisches Paneel (3) vorgesehen ist, welches von der Isolations-und Kühlflüssigkeit (4) umgeben ist und einen mit einem Unterdruck beaufschlagten Hohlraum (5) aufweist,
- der Hohlraum (5) zumindest teilweise von zumindest einer Metall-Membran (6, 6') begrenzt ist, so dass das Hohlraumvolumen bei einer Druckschwankung der Isolations- und Kühlflüssigkeit (4) veränderbar ist, und
- im Hohlraum (5) eine aus einem Metall hergestellte Federeinrichtung (7) vorgesehen ist, die unter einer Vorspannung an der zumindest einen Metall-Membran (6, 6') abgestützt ist.

Figure imgaf001
Arrangement for reducing the noise immission of an electrical transformer or a throttle, comprising:
a boiler (1) filled with an insulating and cooling liquid (4),
an active part (2) arranged in the boiler (1),
- where,
- in the boiler (1) at least one volume-elastic panel (3) is provided, which is surrounded by the insulating and cooling liquid (4) and having a vacuum applied to a cavity (5),
- The cavity (5) is at least partially bounded by at least one metal membrane (6, 6 '), so that the cavity volume is variable at a pressure fluctuation of the insulating and cooling liquid (4), and
- In the cavity (5) made of a metal spring means (7) is provided, which is supported under a bias on the at least one metal membrane (6, 6 ').
Figure imgaf001

Description

Technisches GebietTechnical area

Die Erfindung betrifft allgemein das technische Gebiet elektrischer Transformatoren und Drosseln, mit einem Aktivteil, der in einem Kessel angeordnet und von einer Isolations- und Kühlflüssigkeit umgeben ist.The invention relates generally to the technical field of electrical transformers and chokes, with an active part, which is arranged in a boiler and surrounded by an insulating and cooling liquid.

Stand der TechnikState of the art

Um die Abstrahlung von Betriebsgeräuschen bei einem flüssigkeitsgekühlten Transformator oder einer Drossel einzudämmen, sind verschiedene aktiv und passiv wirkende Einrichtungen bekannt, die entweder innerhalb des Kessels oder außen an der Kesselwand angeordnet sind. Beispielsweise wird in der GB 971,765 vorgeschlagen, im Kesselinneren geschäumte Platten anzuordnen, die von der Isolations- und Kühlflüssigkeit vollständig umgeben sind. In der internationalen Patentanmeldung PCT/EP2008/006917 werden plattenförmige Vakuumpaneele vorgeschlagen, welche außenseitig an der Kesselwand angebracht sind.To curb the radiation of operating noise in a liquid-cooled transformer or reactor, various active and passive devices are known, which are located either inside the boiler or outside of the boiler wall. For example, in the GB 971,765 proposed to arrange foamed inside the boiler plates, which are completely surrounded by the insulating and cooling liquid. In the international patent application PCT / EP2008 / 006917 plate-shaped vacuum panels are proposed, which are mounted on the outside of the boiler wall.

Trotz der Vielzahl von verschiedenartig wirkenden Einrichtungen und Maßnahmen ist das Problem der Geräuschimmission bei Transformatoren und Drosseln bis heute nicht zufriedenstellend gelöst. Ein besonderes Problem stellt dabei die bei derartigen Anlagen geforderte lange, möglichst wartungsarme Betriebsdauer von mehreren Jahrzehnten dar. Bei bislang bekannten Dämpfungseinrichtungen nimmt nämlich die Dämpfungswirkung mit zunehmender Betriebsdauer ab, - sei es durch Alterungsverhalten oder durch Materialermüdung, - bzw. erfordert aufwändige Maßnahmen zur Wartung.Despite the variety of different-acting facilities and measures, the problem of noise immission in transformers and reactors is still not satisfactorily resolved. A particular problem is the required in such systems long, low maintenance as possible operating life of several decades. In previously known damping devices namely decreases the damping effect with increasing operating time, - whether by aging behavior or by material fatigue, - or requires complex measures for maintenance ,

Darstellung der ErfindungPresentation of the invention

Es ist eine Aufgabe der vorliegenden Erfindung, eine Anordnung zur Verringerung von Betriebsgeräuschen eines Transformators oder einer Drossel anzugeben, dessen Dämpfungswirkung über einen möglichst langen Betriebszeitraum nahezu unverändert aufrechterhalten bleibt und dessen Wartungsaufwand gering ist.It is an object of the present invention to provide an arrangement for reducing operating noise of a transformer or a throttle, the damping effect of which remains virtually unchanged over the longest possible operating period and whose maintenance is low.

Gelöst wird diese Aufgabe durch einen Anordnung gemäß den Merkmalen des Patentanspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen definiert.This object is achieved by an arrangement according to the features of claim 1. Advantageous embodiments of the invention are defined in the dependent claims.

Gemäß einem Grundgedanken der Erfindung wird im Kesselinneren mindestens ein volumenelastisches Paneel vorgesehen. Das Paneel weist einen mit Unterdruck beaufschlagten Hohlraum auf, welcher zumindest teilweise von einer Metall-Membran begrenzt ist. Im Hohlraum ist eine metallische Federeinrichtung vorgesehen, die an der Metall-Membran unter einer Vorspannung abgestützt ist. Dadurch wird erreicht, dass Flüssigkeits-Schallwellen, die sich in der Isolations- und Kühlflüssigkeit in longitudinaler Richtung ausbreiten durch die elastische Verformung der Metall-Membran zumindest teilweise aufgenommen werden. Die Schallenergie wird von der Verformungsarbeit der Metall-Membran und der metallischen Feder resorbiert. Die Steifigkeit wird dabei von der Wechselwirkung Metall-Membran, Federelement und angelegtem Unterdruck vorgegeben. Trifft beispielsweise eine vom Aktivteil abgestrahlte Flüssigkeits-Druckamplitude, - verursacht durch Magnetostriktion oder Kraftwirkung zwischen den Wicklungsleitern -, auf die Metall-Membran auf, so wird dessen Energie durch elastische Deformation der Metall-Membran und vorgespannter Feder zumindest teilweise aufgenommen und gelangt nicht an die Kesselwand. Folge davon ist, dass die Intensität der auf die Kesselwand auftreffenden Druckpositionen geringer ist. Die Kesselwand wird daher weniger stark zu Schwingungen angeregt, wodurch die Geräuschimmission des Kessels insgesamt geringer ist. Die verminderte Geräuschemission ist insbesondere dann von Vorteil, wenn der Transformator oder die Drossel in der Nähe eines Wohnbereichs installiert wird. Ein weiterer Vorteil ergibt sich durch die geringere mechanische Beanspruchung des Kessels selbst, dessen Wandstärke bzw. Versteifung dank der Erfindung dünner bzw. weniger aufwändig aufgebaut sein kann.According to one aspect of the invention, at least one volume-elastic panel is provided in the interior of the boiler. The panel has a vacuum applied to the cavity, which is at least partially bounded by a metal membrane. In the cavity, a metallic spring means is provided, which is supported on the metal diaphragm under a bias voltage. This ensures that liquid sound waves that propagate in the insulation and cooling liquid in the longitudinal direction are at least partially absorbed by the elastic deformation of the metal membrane. The sound energy is absorbed by the deformation work of the metal membrane and the metallic spring. The stiffness is determined by the interaction of metal membrane, spring element and applied negative pressure. If, for example, a liquid pressure amplitude emitted by the active part, caused by magnetostriction or force between the winding conductors, strikes the metal membrane, its energy is at least partially absorbed by elastic deformation of the metal membrane and preloaded spring and does not reach the boiler wall. The consequence of this is that the intensity of the pressure positions impinging on the vessel wall is lower. The boiler wall is therefore less strongly excited to vibrate, causing the Noise emission of the boiler is lower overall. The reduced noise emission is particularly advantageous when the transformer or choke is installed near a residential area. Another advantage results from the lower mechanical stress of the boiler itself, the wall thickness or stiffening can be constructed thinner or less complex thanks to the invention.

Konstruktiv günstig kann eine Ausführung der Erfindung sein, bei der jedes volumenelastische Paneel jeweils durch zwei einander gegenüberliegende Metall-Membranen und einem umlaufenden starren Membran-Rahmen gebildet ist. Jede Metall-Membran ist dabei auf dem Membran-Rahmen flüssigkeitsdicht bzw. gasdicht befestigt, zum Beispiel durch eine Schweißverbindung oder Lötverbindung. Im Zwischenraum zwischen den beiden sich etwa parallel gegenüberliegenden Metall-Membranen ist die Federeinrichtung angeordnet. Die Federeinrichtung ist an der einen und an der anderen Metallmembran unter Vorspannung abgestützt. Dadurch wird ein plattenförmiger flüssigkeitsschallabsorbierender Bauteil geschaffen, der vergleichsweise wenig Einbauraum im Kessel beansprucht. Die Montage und Unterbringung im Kessel ist daher einfach möglich.Constructively favorable may be an embodiment of the invention, in which each volume-elastic panel is formed in each case by two mutually opposite metal membranes and a peripheral rigid membrane frame. Each metal membrane is attached to the membrane frame liquid-tight or gas-tight, for example, by a welded joint or solder joint. In the intermediate space between the two approximately parallel metal membranes opposite the spring device is arranged. The spring device is supported on one and on the other metal diaphragm under bias. As a result, a plate-shaped liquid-sound absorbing component is created, which requires comparatively little installation space in the boiler. The installation and placement in the boiler is therefore easily possible.

Von Vorteil kann dabei sein, dass die Steifigkeit des volumenelastischen Elementes bzw. Paneels auf einfache Weise durch den im Hohlraum eingestellten Unterdruck und der Vorspannung zwischen Feder und Metall-Membran vorgegeben werden kann. Dies erleichtert die Anpassung an unterschiedliche Größen und Typen von Transformatoren bzw. Drosseln.It may be advantageous in this case that the rigidity of the volume-elastic element or panel can be predetermined in a simple manner by the negative pressure set in the cavity and the preload between spring and metal membrane. This facilitates the adaptation to different sizes and types of transformers or chokes.

Um im Bereich der Abstützung zwischen Federelement und Metall-Membran den mechanischen Verschleiß möglichst gering zu halten, kann es günstig sein, wenn die Federeinrichtung eine Flach-Formfeder ist, welche bügelförmige Blattfeder-Elemente aufweist, die wechselweise jeweils an einer der beiden Metall-Membranen abgestützt sind. Dadurch kann die Dämpfungswirkung auch über viele Jahre nahezu unverändert aufrecht erhalten werden, ohne dass dafür zusätzlicher Wartungsaufwand erforderlich wäre. Die wechselweise bügelförmigen, vorstehenden Blattfeder-Rippen können einfach aus einer Blechtafel gestanzt und gebogen werden. Die Herstellungskosten sind gering.In order to keep the mechanical wear as low as possible in the region of the support between spring element and metal diaphragm, it can be favorable if the spring device is a flat-shaped spring which has bow-shaped leaf-spring elements which alternately engage in each case on one of the two metal diaphragms are supported. This allows the Damping effect can be maintained almost unchanged over many years, without requiring additional maintenance would be required. The alternately bow-shaped, protruding leaf spring ribs can be easily punched and bent from a metal sheet. The production costs are low.

Eine andere bevorzugte Ausführung der Erfindung ist dadurch gekennzeichnet, dass die Flach-Formfeder zu einer Omega-Form gebogen ist. Auch bei dieser Omega-Form der Feder wird erreicht, dass der mechanische Verschleiß zwischen Metall-Membran und metallischem Federelement so gering ist, dass die Zuverlässigkeit der Dämpfungswirkung über einen langen Betriebszeitraum ohne spezielle Wartung möglich ist.Another preferred embodiment of the invention is characterized in that the flat shape spring is bent to an omega shape. Even with this omega-shape of the spring is achieved that the mechanical wear between the metal diaphragm and metallic spring element is so low that the reliability of the damping effect over a long period of operation without special maintenance is possible.

Da sich diese beiden Bauformen der Flach-Formfeder, d.h. Blattfeder- bzw. Omega-Feder, auf einfache Weise als Stanz-Biege-Formteile hergestellt werden können, ist die Herstellung besonders einfach und kostengünstig.Since these two types of flat-form spring, i. Leaf spring or omega spring, can be easily produced as stamped and bent moldings, the production is particularly simple and inexpensive.

Hinsichtlich der Kosten kann auch eine Ausführungsform günstig sein, bei der die Federeinrichtung ein Drahtgeflecht ist, welches an der Innenfläche einer jeden Metall-Membran anliegend angeordnet ist. Der Hohlraum kann dabei vollständig oder nur teilweise mit einem derartigen Drahtgeflecht gefüllt sein.With regard to the cost, an embodiment in which the spring device is a wire mesh, which is arranged adjacent to the inner surface of each metal diaphragm, can also be favorable. The cavity can be completely or only partially filled with such a wire mesh.

Von Vorteil ist ferner hin, wenn das volumenelastische Paneel einen prismatischen Grundkörper aufweist. Durch diese Plattenform ist die Unterbringung im Kessel eines Transformators meist ohne große bauliche Änderungen möglich.Furthermore, it is advantageous if the volume-elastic panel has a prismatic basic body. Due to this plate shape, the placement in the boiler of a transformer is usually possible without major structural changes.

Günstige ist ferner die Verwendung von korrosionsbeständigen metallischen Werkstoffen, sowohl für Metall-Membran, Membran-Rahmen, bzw. Drahtgeflecht als auch Flach-Formfeder. Dadurch ist auch über einen viele Jahre andauernden Betrieb nicht mit einer Verringerung oder Änderung der Dämpfungseigenschaft aufgrund von Korrosion zu rechnen.Also favorable is the use of corrosion-resistant metallic materials, both for metal membrane, membrane frame, or wire mesh as well as flat-shaped spring. As a result, no reduction or change in the damping characteristic due to corrosion can be expected even after many years of operation.

Zur Applikation des Unterdrucks bietet es sich an, wenn im Rahmen des volumenelastischen Paneels eine verschließbare Öffnung, zum Beispiel eine Bohrung mit Gewinde, zur Herstellung des Unterdrucks im Hohlraum vorgesehen ist. Der Unterdruck kann dadurch auf einfache Weise bei der Herstellung des volumenelastischen Paneels erzeugt werden und das dichte Verschließen der Öffnung kann auf einfache Weise durch eine Dichtschraube erfolgen.For applying the negative pressure, it makes sense if, within the volume-elastic panel, a closable opening, for example a threaded hole, is provided for producing the negative pressure in the cavity. The negative pressure can be generated in a simple manner in the production of the volume-elastic panel and the tight closure of the opening can be done easily by a sealing screw.

Kurzbeschreibung der ZeichnungBrief description of the drawing

Zur weiteren Erläuterung der Erfindung wird im nachfolgenden Teil der Beschreibung auf Zeichnungen Bezug genommen, aus denen weitere vorteilhafte Ausgestaltungen, Einzelheiten und Weiterbildungen der Erfindung anhand eines nicht einschränkenden Ausführungsbeispiels zu entnehmen sind. Es zeigen:

Figur 1
in einer Aufsicht auf einen Transformatorkessel mit volumenelastischen Paneelen, innenseitig an einer Kesselwand;
Figur 2
eine Seitenansicht der Figur 1;
Figur 3
ein volumenelastisches Paneel mit einem Federelement bestehend aus bügelförmigen Federabschnitten in einer Querschnitts-Darstellung;
Figur 4
einen Schnitt gemäß A-A in Figur 3;
Figur 5
eine räumliche Darstellung des Federelements gemäß Figur 3 und Figur 4;
Figur 6
eine andere mögliche Ausbildung der Federeinrichtung in Form einer Omega-Feder;
Figur 7
eine Ausbildung der Federeinrichtung als Drahtgeflecht.
To further explain the invention, reference is made in the following part of the description to drawings, from which further advantageous embodiments, details and further developments of the invention can be found by way of non-limiting embodiment. Show it:
FIG. 1
in a plan view of a transformer tank with volume-elastic panels, inside on a boiler wall;
FIG. 2
a side view of FIG. 1 ;
FIG. 3
a volume-elastic panel with a spring element consisting of bow-shaped spring sections in a cross-sectional view;
FIG. 4
a section according to AA in FIG. 3 ;
FIG. 5
a spatial representation of the spring element according to FIG. 3 and FIG. 4 ;
FIG. 6
another possible embodiment of the spring device in the form of an omega spring;
FIG. 7
an embodiment of the spring device as wire mesh.

Ausführung der ErfindungEmbodiment of the invention

Figur 1 zeigt in einer Draufsicht auf einen Kessel 1 eines Transformators ein Aktivteil 2 in einer isolations- und Kühlflüssigkeit 4. In einem Zwischenbereich 11 zwischen Aktivteil 2 und Kesselwand sind mehrere plattenförmige ausgebildete volumenelastische Paneele 3 angeordnet. Diese Paneele 3 haben einen Abstand sowohl zur Kesselwand als auch zu den Wicklungen bzw. zum Joch des Aktivteils 2. In der Figur 1 sind diese Paneele 1 im Kessel vertikal hängend angeordnet, wobei deren Befestigungsmittel nicht dargestellt sind. Der Querschnitt der Paneele 3 ist rechteckförmig. Der prismatischen Grundkörper lässt sich auf einfache Weise im Innenraum des Kessels 1 unterbringen. FIG. 1 shows in a plan view of a boiler 1 of a transformer, an active part 2 in an insulating and cooling liquid 4. In an intermediate region 11 between the active part 2 and boiler wall a plurality of plate-shaped volume-elastic panels 3 are arranged. These panels 3 have a distance both to the boiler wall and to the windings or to the yoke of the active part 2. In the FIG. 1 these panels 1 are arranged vertically suspended in the boiler, wherein the fastening means are not shown. The cross section of the panels 3 is rectangular. The prismatic body can be accommodated in a simple manner in the interior of the boiler 1.

Figur 2 zeigt eine Seitenansicht der Darstellung gemäß Figur 1. Zu sehen sind die vertikal angeordneten Paneele 3, die sich über die gesamte Länge des Kern-Schenkels des Aktivteils 2 erstrecken. Die vertikale Länge kann bei einem Leistungstransformator mehr als 10 m erreichen. Auf das Paneel 3 wirkt bei einer derartigen Anordnung ein hydrostatischer Druck von etwa 1 bar. In Figur 2 sind auch Paneele 3 dargestellt, die in einem Zwischenraum 11 zwischen Deckel und Bodenteil des Kessels 1 angeordnet sind. FIG. 2 shows a side view of the illustration according to FIG. 1 , On display are the vertically arranged panels 3, which extend over the entire length of the core leg of the active part 2. The vertical length can reach more than 10 m for a power transformer. On the panel 3 acts in such an arrangement, a hydrostatic pressure of about 1 bar. In FIG. 2 also panels 3 are shown, which are arranged in a gap 11 between the cover and the bottom part of the boiler 1.

Wie aus den Zeichnungen der Figur 1 und 2 hervorgeht, sind im Innenraum des Kessels 1 mehrere Paneele 3 sowohl im Seitenbereich als auch im Bereich des Deckels und des Bodenteils angeordnet. Jedes dieser volumenelastischen Paneele 3 wirkt bezüglich der Flüssigkeitsschallwellen wie ein nachgiebiger Metallbalg, ein so genannter "metal bellow". Ziel ist es dabei, durch ein nachgiebiges Verformungsverhalten die Druckpulsationen im Kessel 1 zu reduzieren. Bei einem Transformator können die Flüssigkeitsschallwellen Druckschwankungen in der Höhe von etwa 100 mbar aufweisen.As from the drawings of FIGS. 1 and 2 it can be seen, in the interior of the boiler 1 several panels 3 are arranged both in the side region and in the region of the lid and the bottom part. Each of these volume-elastic panels 3 acts with respect to the liquid sound waves as a resilient metal bellows, a so-called "metal bellow". The goal here is, by a yielding Deformation behavior to reduce the pressure pulsations in the boiler 1. In a transformer, the liquid sound waves may have pressure fluctuations in the amount of about 100 mbar.

Durch die in Figur 1 und Figur 3 dargestellte Anordnung der Paneele 3 im Innenraum des Kessels 1 wird erreicht, dass vom Aktivteil 2 abgestrahlte Druckpulsationen der Isolations- und Kühlflüssigkeit 4 von den Paneelen 3 in ihrer Intensität gemindert werden. Folglich sind die auf die Wände des Kessels 1 auflaufenden Flüssigkeitsschallwellen in ihrer Intensität weniger energiereich. Die Schwingungsanregung der Kesselwände ist geringer. Der Kessel strahlt weniger Betriebsgeräusche ab. Darüber hinaus wird die mechanische Konstruktion des Kessels 1 entlastet. Die starre Kopplung zwischen Aktivteil und Kessel 1 ist weniger stark. Dadurch reduziert sich auch die dynamische Last, die auf den Kessel wirkt.By the in FIG. 1 and FIG. 3 illustrated arrangement of the panels 3 in the interior of the boiler 1 is achieved that emitted by the active part 2 pressure pulsations of the insulating and cooling liquid 4 are reduced by the panels 3 in their intensity. Consequently, the accumulating on the walls of the boiler 1 liquid sound waves are less energetic in intensity. The vibration excitation of the boiler walls is lower. The boiler radiates less operating noise. In addition, the mechanical design of the boiler 1 is relieved. The rigid coupling between the active part and boiler 1 is less strong. This also reduces the dynamic load that acts on the boiler.

Im Folgenden werden nun die volumenelastischen Paneele 3 genauer gezeigt und in ihrer Wirkung näher erläutert.In the following, the volume-elastic panels 3 will now be shown in more detail and explained in more detail in their effect.

Figur 3 zeigt eine erste Ausführungsform eines volumenelastischen Paneels 3. Das volumenelastische Paneel 3 besteht aus einem starren im Querschnitt rechteckigen Rahmen 8, der stirnseitig jeweils eine Fläche aufspannt, die mit einer Metall-Membran 6 bzw. 6' abgedeckt ist. Die Metall-Membran 6, 6' ist ein ebenes dünnwandiges Stahlblech, welches auf dem Membran-Rahmen 8 randseitig durch eine durchgehende Schweißnaht befestigt ist. Die Verbindung zwischen Metall-Membran 6 bzw. 6' und Rahmen 8 ist dicht, sowohl gegenüber Flüssigkeit als auch gegenüber Gas. Im Hohlraum 5 ist ein Federelement 7 angeordnet. Das Federelement 7 ist in der dargestellten Ausführung eine flache Form-Feder welche bügelförmige Blattfederelemente 9 aufweist. Diese bügelförmigen Blattfederelemente 9 stützen sich an der oberen Metall-Membran 6 und an der unteren Metall-Membran 6' ab. Im Bereich der Abstützung liegen die Blattfedern 9 flächig an der Innenfläche der jeweiligen Membran 6 bzw. 6' an. Dadurch tritt kaum Reibungsverschleiß auf. FIG. 3 shows a first embodiment of a volume-elastic panel 3. The volume-elastic panel 3 consists of a rigid rectangular cross-section frame 8, the front side each spans a surface which is covered with a metal membrane 6 and 6 '. The metal membrane 6, 6 'is a flat thin-walled steel sheet, which is fixed on the membrane frame 8 at the edge by a continuous weld. The connection between metal diaphragm 6 or 6 'and frame 8 is sealed, both to liquid and to gas. In the cavity 5, a spring element 7 is arranged. The spring element 7 is in the illustrated embodiment, a flat shape-spring which bow-shaped leaf spring elements 9 has. These bow-shaped leaf spring elements 9 are supported on the upper metal diaphragm 6 and on the lower metal diaphragm 6 '. In the area of the support, the leaf springs 9 are flat the inner surface of the respective membrane 6 and 6 '. As a result, hardly occurs friction wear.

Für die weitere Beschreibung sei davon ausgegangen, dass vor der bestimmungsgemäßen Verwendung an der Öffnung 10 ein Unterdruck angelegt wurde, so dass sich eine Vorspannung zwischen Federeinrichtung 7 und Metallmembran 6 bzw. 6' eingestellt hat.For the further description, it is assumed that a negative pressure was applied to the opening 10 before the intended use, so that a bias voltage has been set between the spring device 7 and the metal diaphragm 6 or 6 '.

Bei betriebsgemäße Verwendung im Kessel eines Transformators treffen auf den Metall-Membranen 6, 6' Druckwellen der Isolations-und Kühlflüssigkeit 4 auf. Die Longitudinalwellen wirken in Form eines Überdrucks bzw. eines Unterdrucks. Dadurch kommt es zu einer (weiteren) Einbuchtung bzw. Ausbuchtung der Metall-Membranen 6, 6'. Entsprechend der Druckamplitude gibt jede der Blattfedern 7 elastisch nach, sowohl in der einen als auch in der anderen Verformungsrichtung. Da die Federeinrichtung 7 seitlich nicht begrenzt ist, weicht sie in ihrer flächigen Erstreckung aus, was am besten anhand des Schnittes A-A in Figur 4 zu erkennen ist.When used as intended in the boiler of a transformer, pressure waves of the insulating and cooling liquid 4 impinge on the metal membranes 6, 6 '. The longitudinal waves act in the form of an overpressure or a negative pressure. This results in a (further) indentation or bulge of the metal membranes 6, 6 '. According to the pressure amplitude, each of the leaf springs 7 yields elastically, in both the one and the other direction of deformation. Since the spring device 7 is not bounded laterally, it differs in its planar extension, which is best based on the section AA in FIG. 4 can be seen.

In Figur 5 ist das Federelement 7 in einer perspektivischen Ansicht zu sehen. Die Flachform-Feder besteht aus nebeneinanderliegenden parallel angeordneten Blattfeder-Elementen 9. Diese Elemente 9 sind rippenförmig ausgebildet. Parallel liegende Rippen sind wechselweise auf die eine, dann auf die andere Seite bügelförmig gebogen. Jeder Bügel 9 mündet jeweils mit seinem Ende in einen randseitigen Fixierbereich 12. Als Werkstoff dient ein rostbeständiges Feder-Stahlblech. Der Übergang Zwischenbügel 9 und Fixierbereich 12 ist materialeinheitlich.In FIG. 5 the spring element 7 can be seen in a perspective view. The flat-form spring consists of adjacent parallel leaf spring elements 9. These elements 9 are rib-shaped. Parallel ribs are alternately bent bow-shaped on one side and then on the other side. Each bracket 9 opens in each case with its end in a peripheral fixing region 12. The material used is a rust-resistant spring steel sheet. The transition between bracket 9 and fixing area 12 is of uniform material.

Figur 6 zeigt in einer Querschnitts-Darstellung eine andere Ausführung des Federelementes 7. Hier ist das Federelement 7 eine Omega-förmige Feder gefertigt aus einem rostfreien Federstahl. Diese Omega-Feder liegt wieder mit ihren zur Metall-Membran 6, 6' zeigenden pilzförmigen Abschnitten flächig an der Innenfläche einer Metall-Membran 6 bzw. 6' an. Dadurch wird wieder erreicht, dass die Reibpartner 6 bzw. 6 und 7 flächig aneinander liegen, wodurch der Verschleiß sehr gering ist. Die Dämpfungseigenschaft ist daher über einen langen Betriebszeitraum unverändert. FIG. 6 shows in a cross-sectional view of another embodiment of the spring element 7. Here, the spring element 7 is an omega-shaped spring made of a stainless spring steel. This omega spring lies again with its to the metal membrane 6, 6 'showing mushroom-shaped sections flat on the inner surface of a metal membrane 6 and 6 'at. This again ensures that the friction partners 6 and 6 and 7 lie flat against each other, whereby the wear is very low. The damping characteristic is therefore unchanged over a long period of operation.

Figur 7 zeigt schließlich eine dritte Ausführung des volumenelastischen Paneels 3, bei der das Federelement 7 durch ein Metallgeflecht im Innenraum 5 gebildet ist. FIG. 7 finally shows a third embodiment of the volume-elastic panel 3, in which the spring element 7 is formed by a metal mesh in the interior 5.

In den oben dargestellten Ausführungsbeispiele besteht das Federelement 7 sowie der Rahmen 8 und Metallmembranen 6, 6' aus einem nicht rostenden Stahl. Dies den Vorteil, dass korrosionsbedingte Alterung auch während einer langen Betriebszeit kaum zu erwarten ist, wodurch auch die Flüssigkeitsschall-Absorptionswirkung des Paneels 3 erhalten bleibt.In the embodiments shown above, the spring element 7 and the frame 8 and metal membranes 6, 6 'made of a stainless steel. This has the advantage that corrosion-induced aging is hardly to be expected even during a long period of operation, as a result of which the liquid-sound absorption effect of the panel 3 is also retained.

Obwohl die Erfindung anhand der oben dargestellten Ausführungsbeispiele näher beschrieben und erläutert wurde, so ist die Erfindung auf diese Beispiele nicht eingeschränkt. Andere Ausgestaltungen und Variationen sind denkbar, ohne dass der Grundgedanke der Erfindung verlassen wird.Although the invention has been described and explained with reference to the embodiments illustrated above, the invention is not limited to these examples. Other embodiments and variations are conceivable without departing from the basic idea of the invention.

Zusammenstellung der verwendeten Bezugszeichen

1
Kessel
2
Aktivteil
3
volumenelastischen Paneel
4
Isolations- und Kühlflüssigkeit
5
Hohlraum
6, 6'
Metall-Membran
7
Federelement, Flachform-Feder
8
Rahmen
9
Blattfeder
10
Öffnung
11
Zwischenraum
12
Fixierbereich
Compilation of the reference numbers used
1
boiler
2
active part
3
volume elastic panel
4
Insulation and cooling fluid
5
cavity
6, 6 '
Metal membrane
7
Spring element, flat-form spring
8th
frame
9
leaf spring
10
opening
11
gap
12
fusing

Claims (10)

Anordnung zur Verringerung der Geräuschimmission eines elektrischen Transformators oder einer Drossel, umfassend: - einen Kessel (1), der mit einer Isolations- und Kühlflüssigkeit (4) gefüllt ist, - ein Aktivteil (2), der im Kessel (1) angeordnet ist, - dadurch gekennzeichnet, - dass im Kessel (1) zumindest ein volumenelastisches Paneel (3) vorgesehen ist, welches von der Isolations-und Kühlflüssigkeit (4) umgeben ist und einen mit einem Unterdruck beaufschlagten Hohlraum (5) aufweist, - dass der Hohlraum (5) zumindest teilweise von zumindest einer Metall-Membran (6, 6') begrenzt ist, so dass das Hohlraumvolumen bei einer Druckschwankung der Isolations- und Kühlflüssigkeit (4) veränderbar ist, - dass im Hohlraum (5) eine aus einem Metall hergestellte Federeinrichtung (7) vorgesehen ist, die unter einer Vorspannung an der zumindest einen Metall-Membran (6, 6') abgestützt ist. Arrangement for reducing the noise immission of an electrical transformer or a throttle, comprising: a boiler (1) filled with an insulating and cooling liquid (4), an active part (2) arranged in the boiler (1), - characterized - That in the boiler (1) at least one volume-elastic panel (3) is provided, which is surrounded by the insulating and cooling liquid (4) and having a vacuum applied to a cavity (5), - That the cavity (5) is at least partially bounded by at least one metal membrane (6, 6 '), so that the cavity volume is variable at a pressure fluctuation of the insulating and cooling liquid (4), - That in the cavity (5) made of a metal spring means (7) is provided which is supported under a bias on the at least one metal membrane (6, 6 '). Transformator oder Drossel nach Anspruch 1, dadurch gekennzeichnet, dass das zumindest eine volumenelastische Paneel (3) durch zwei einander gegenüberliegende Metall-Membranen (6, 6') und einem umlaufenden starren Membran-Rahmen (8) gebildet ist, wobei jede Metall-Membran (6, 6') auf dem Membran-Rahmen (8) dichtend befestigt ist, und wobei die Federeinrichtung (7) an der einen und an der anderen Metall-Membran (6, 6') abgestützt ist.Transformer or choke according to Claim 1, characterized in that the at least one volume-elastic panel (3) is formed by two mutually opposite metal membranes (6, 6 ') and a circumferential rigid membrane frame (8), each metal membrane (6, 6 ') is sealingly fixed to the membrane frame (8), and wherein the spring means (7) on one and on the other metal membrane (6, 6') is supported. Transformator oder Drossel nach Anspruch 2, dadurch gekennzeichnet, dass die Vorspannung der Federeinrichtung (7) von der Beaufschlagung des Unterdrucks abhängig ist.Transformer or choke according to claim 2, characterized in that the bias of the spring means (7) is dependent on the application of the negative pressure. Transformator oder Drossel, nach Anspruch 2, dadurch gekennzeichnet, dass die Federeinrichtung (7) ein Flach-Formfeder ist, welche bügelförmige Blattfeder-Elemente (9) aufweist (Figur 4), die wechselweise jeweils an einer der beiden Metall-Membranen (6,6') abgestützt sind und in einer Fixierzone enden.Transformer or choke, according to claim 2, characterized in that the spring device (7) is a flat-shaped spring, which bow-shaped leaf spring elements (9) (Figure 4), each of which alternately on one of the two metal membranes (6, 6 ') are supported and terminate in a fixing zone. Transformator oder Drossel, nach Anspruch 4, dadurch gekennzeichnet, dass die Flach-Formfeder eine Omega-Form aufweist.Transformer or choke, according to claim 4, characterized in that the flat shape spring has an omega shape. Transformator oder Drossel nach Anspruch 2, dadurch gekennzeichnet, dass die Federeinrichtung (7) ein Drahtgeflecht aufweist, welches an der Innenfläche einer jeden Metallmembran (6, 6') unter Vorspannung anliegt.Transformer or choke according to claim 2, characterized in that the spring means (7) comprises a wire mesh which bears against the inner surface of each metal diaphragm (6, 6 ') under prestress. Transformator oder Drossel nach einem der Ansprüche 2-6, dadurch gekennzeichnet, dass das volumenelastische Paneel (3) eine prismatischen Grundkörper aufweist.Transformer or choke according to one of claims 2-6, characterized in that the volume-elastic panel (3) has a prismatic body. Transformator oder Drossel nach einem der Ansprüche 2-7, dadurch gekennzeichnet, dass der Werkstoff aus dem Membran-Rahmen (8), Drahtgeflecht, Flach-Formfeder gebildet ist, ein korrosionsbeständiges Metall ist.Transformer or choke according to one of claims 2-7, characterized in that the material of the membrane frame (8), wire mesh, flat-shaped spring is formed, a corrosion-resistant metal. Transformator oder Drossel nach Anspruch 1, dadurch gekennzeichnet, dass am Membran-Rahmen (8) eine verschließbare Öffnung (10) zur Herstellung eines Unterdrucks im Hohlraum (5) ausgebildet ist.Transformer or throttle according to claim 1, characterized in that on the membrane frame (8) a closable opening (10) for producing a negative pressure in the cavity (5) is formed. Transformator oder Drossel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das zumindest eine volumenelastische Paneel (3) in einem Zwischenraum (11) zwischen Aktivteil (2) und Kessel (1) angeordnet ist.Transformer or throttle according to one of the preceding claims, characterized in that the at least one volume-elastic panel (3) in an intermediate space (11) between the active part (2) and boiler (1) is arranged.
EP15157123.9A 2015-03-02 2015-03-02 Assembly for reducing the noise emissions of a transformer or a throttle Active EP3065129B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15157123.9A EP3065129B1 (en) 2015-03-02 2015-03-02 Assembly for reducing the noise emissions of a transformer or a throttle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15157123.9A EP3065129B1 (en) 2015-03-02 2015-03-02 Assembly for reducing the noise emissions of a transformer or a throttle

Publications (2)

Publication Number Publication Date
EP3065129A1 true EP3065129A1 (en) 2016-09-07
EP3065129B1 EP3065129B1 (en) 2018-10-03

Family

ID=52627037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15157123.9A Active EP3065129B1 (en) 2015-03-02 2015-03-02 Assembly for reducing the noise emissions of a transformer or a throttle

Country Status (1)

Country Link
EP (1) EP3065129B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020212257A1 (en) 2020-09-29 2022-03-31 Siemens Energy Global GmbH & Co. KG transformer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1111726B (en) * 1954-05-28 1961-07-27 Licentia Gmbh Liquid-cooled, noise-damped transformer
GB971765A (en) 1961-03-20 1964-10-07 Parsons C A & Co Ltd Improvements in and relating to sound insulation
US4558296A (en) * 1984-02-14 1985-12-10 Asea Aktiebolag Sound damping devices
US6661322B1 (en) * 1999-06-28 2003-12-09 Abb T & D Technology Ltd. Sound-insulating device for an induction machine
US20070014418A1 (en) * 2005-07-14 2007-01-18 Eatwell Graham P Vibration excited sound absorber with dynamic tuning
DE102005045844B3 (en) * 2005-09-26 2007-02-01 Airbus Deutschland Gmbh Sound insulation panel for aircraft has inner and outer wall faces separated by evacuated gap with preloaded springs between faces

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1111726B (en) * 1954-05-28 1961-07-27 Licentia Gmbh Liquid-cooled, noise-damped transformer
GB971765A (en) 1961-03-20 1964-10-07 Parsons C A & Co Ltd Improvements in and relating to sound insulation
US4558296A (en) * 1984-02-14 1985-12-10 Asea Aktiebolag Sound damping devices
US6661322B1 (en) * 1999-06-28 2003-12-09 Abb T & D Technology Ltd. Sound-insulating device for an induction machine
US20070014418A1 (en) * 2005-07-14 2007-01-18 Eatwell Graham P Vibration excited sound absorber with dynamic tuning
DE102005045844B3 (en) * 2005-09-26 2007-02-01 Airbus Deutschland Gmbh Sound insulation panel for aircraft has inner and outer wall faces separated by evacuated gap with preloaded springs between faces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020212257A1 (en) 2020-09-29 2022-03-31 Siemens Energy Global GmbH & Co. KG transformer

Also Published As

Publication number Publication date
EP3065129B1 (en) 2018-10-03

Similar Documents

Publication Publication Date Title
DE2424696C3 (en) Device for controlling a flow medium
DE102016203217B4 (en) Damper capsule, pressure pulsation damper and high-pressure fuel pump
DE202016103279U1 (en) Sixteen corner reinforcing element for vehicles
EP2978991B1 (en) Vibration damper for shielding plate
DE102010043165B4 (en) Aggregate bearing with integrated travel limiters and manufacturing process
DE102012206288A1 (en) Covering an inside of a side wall of a rail vehicle
DE3235865A1 (en) ELASTIC SHOCK ABSORBER FOR ENGINE SUSPENSION
DE602004008802T2 (en) METHOD FOR LIMITING HOLDING CAPACITY TO A CORE REACTOR COMBINER AND COMBUSTION BRUSH
EP3065129B1 (en) Assembly for reducing the noise emissions of a transformer or a throttle
DE102019203400A1 (en) Battery case
DE102016012731A1 (en) Damping body for an upper support
WO2020127089A1 (en) Covering element, container, battery device and method for closing a container
DE2427703A1 (en) MECHANICAL RESONANCE FILTER
DE2243329B2 (en) Noise-insulating, wall-forming component for internal combustion engines
DE202010007559U1 (en) Device for holding a component having a holding rod
WO2016134888A1 (en) Arrangement for reducing the radiation of noise from liquid-cooled transformers or chokes
DE102008024816A1 (en) Dynamic electro-acoustic transducer and handset
DE102012100697A1 (en) Arrangement for noise reduction of large electric machine, has vibration damper that is formed as adapted spring-mass system with closed vibration damper spring
DE102012101483A1 (en) Reinforcement arrangement for side compartment opening of vehicle cabin of motor vehicle, has reinforcing elements arranged on corner bumpers, that are installed on flanges of side compartment opening
DE3026618A1 (en) ELEMENT FOR SEALING THE SEPARATOR BETWEEN TWO PARTS ENCLOSING A GASKET
DE102006044743A1 (en) Metal laminate type gasket for engine, has metal plate including damper bead formed in connecting portion and projecting to another metal plate, where connecting portion is formed between laminated portions
DE102019132736A1 (en) FRICTION-DAMPED INSERT FOR TECHNICAL COMPONENTS TO BE STRONG
EP2256756B1 (en) Electric transformer or electric choke
DE102014226263A1 (en) Vibration damping system for a HVAC evaporator
WO2020053135A1 (en) Cover on a component of an exhaust system and method for producing a component of this type having a cover

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL 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 RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170306

RBV Designated contracting states (corrected)

Designated state(s): AL 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 RS SE SI SK SM TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

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: 20180530

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): AL 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 RS SE SI SK SM 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

Ref country code: AT

Ref legal event code: REF

Ref document number: 1049470

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181015

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015006193

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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: 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: 20181003

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: 20181003

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: 20190103

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: 20181003

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: 20190103

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: 20181003

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: 20181003

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: 20181003

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: 20190203

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: 20181003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

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: 20181003

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: 20190104

Ref country code: AL

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: 20181003

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: 20190203

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015006193

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20181003

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: 20181003

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: 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: 20181003

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: 20181003

Ref country code: SM

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: 20181003

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: 20181003

26N No opposition filed

Effective date: 20190704

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: 20181003

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: 20181003

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: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190302

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190331

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190331

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: 20181003

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: 20181003

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502015006193

Country of ref document: DE

Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG, DE

Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1049470

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200302

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: 20181003

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: 20150302

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: 20200302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

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: 20181003

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20220901 AND 20220907

REG Reference to a national code

Ref country code: NL

Ref legal event code: PD

Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG; DE

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: SIEMENS AKTIENGESELLSCHAFT

Effective date: 20221220

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230323

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230317

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20240326

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240328

Year of fee payment: 10

Ref country code: GB

Payment date: 20240319

Year of fee payment: 10