EP2495742A1 - High-voltage resistant electricity-compensated interference suppression choke - Google Patents
High-voltage resistant electricity-compensated interference suppression choke Download PDFInfo
- Publication number
- EP2495742A1 EP2495742A1 EP12000413A EP12000413A EP2495742A1 EP 2495742 A1 EP2495742 A1 EP 2495742A1 EP 12000413 A EP12000413 A EP 12000413A EP 12000413 A EP12000413 A EP 12000413A EP 2495742 A1 EP2495742 A1 EP 2495742A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- coils
- interference suppression
- radio interference
- suppression choke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001629 suppression Effects 0.000 title claims description 39
- 239000004020 conductor Substances 0.000 claims abstract description 52
- 239000007787 solid Substances 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 52
- 238000004804 winding Methods 0.000 description 16
- 239000010410 layer Substances 0.000 description 14
- 238000013016 damping Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper 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
- 230000004907 flux Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
Definitions
- the invention relates to a high-current resistant, current-compensated radio interference suppression choke with a self-contained core of a soft magnetic material, with at least two wound around the core coils and with the coils forming, guided in a filter circuit electrical conductors.
- Such high-current, current-compensated radio interference suppression chokes are required at currents starting at one hundred amps and are known in practice, for example in diesel hybrid drives.
- the self-contained core can be designed annular and, if necessary, have an air gap.
- a high-current radio interference suppression choke in which the core is divided into two separate sections. On each of the sections a single coil is arranged. The coils thus extend over less than half the circumference of the core.
- a disadvantage of the known radio interference suppression choke is that the structure of the suppression choke requires sufficient space for sufficient damping.
- the described arrangement of the coils is asymmetrical and leads to a magnetic saturation of the core, especially at high currents. An enlargement of the core leads to a high space requirement and thus to high material costs.
- the invention is based on the problem of further developing a radio interference suppression choke of the type mentioned at the beginning in such a way that it has a high damping and a particularly small footprint even at high current intensities.
- the circumference of the core for the arrangement of the coils can be largely utilized at first.
- the core can have particularly small dimensions.
- the small dimensions lead to low production costs.
- the windings of the coils can be arranged uniformly distributed over the entire circumference of the core.
- the symmetry of the windings avoids partial saturation of the core at high currents. Thanks to the invention, a high impedance can be achieved via the frequency in DC applications, and thus an attenuation in the so-called common mode.
- the RFI choke invention is particularly compact, when the portion of the core over which both coils are wound, more than half of the total circumference of the core corresponds. This design also leads to particularly low production costs of Funkfeststördrossel invention.
- a particularly even distribution of the turns of the coils of the RFI choke according to the invention can be achieved easily if the portion of the core, over which both coils are wound, corresponds to almost the total length of the core. As a result of this design, the circumference of the core is used as far as possible to accommodate the coils.
- the radio interference suppression choke invention is particularly simple in construction, when the electrical conductors of different coils are wound in parallel. With this design, the two electrical conductors before the winding can be structurally combined and wrap around the core. This also leads to a further reduction of the manufacturing costs of the radio interference suppression choke according to the invention.
- a particularly compact construction of the radio interference suppression choke according to the invention can be achieved simply if the electrical conductors are wound in different positions around the core. As a result of this configuration, a multiple of the turns of the conductors can be arranged on the core in comparison to a single-layer winding, depending on the number of layers.
- damping characteristics of Funkfeststrossrossel invention can be easily adjusted when the coils are composed of several, parallel or series-connected partial coils.
- the interconnection of the partial coils allows many possibilities.
- the conductors of different partial coils can be wound on different layers.
- the conductors of partial coils of different coils can be wound in parallel on one layer and the other partial coils of the different coils on a different layer.
- Heat is often generated during operation of the radio interference suppression choke, which must be dissipated. You could cool the radio interference suppression choke in a stream of air.
- a particularly high cooling capacity can be achieved according to another advantageous embodiment of the invention, when the electrical conductors are formed as a waveguide.
- a cooling medium such as cooling water or air, can promote through the waveguide and thus carry away the heat.
- the electrical conductors are reliably held in their position according to another advantageous embodiment of the invention, when the electrical conductors are solid.
- the electrical conductors have a high intrinsic stability.
- the electrical conductors are particularly flexible according to another advantageous embodiment of the invention, when the electrical conductors are designed multi-core.
- FIG. 1 shows a switched between a Störsenke 1 and a source of interference 2 high-current, current-compensated Funkeststsstrossel 3.
- the radio interference suppression choke 3 has an annular core 4 to which two electrical conductors a, b of two coils 5, 6 are wound.
- the electrical conductors a, b lead from the interference sink 1 to the interference source 2.
- a section 7, around which the conductors a, b are wound, corresponds to almost the entire length of the core 4.
- the core 4 is shown in the illustrated embodiment without an air gap.
- the core 4 may also have an air gap.
- the core 4 can also be designed differently from the illustrated annular design rectangular or the like.
- FIG. 2a shows the electrical conductors a, b, the radio interference suppression choke 3 off FIG. 1 , It can be seen that these are guided parallel next to each other.
- FIG. 2b illustrates in a plan view of a stretched representation of the portion 7, around which the conductors are wound a, b, the parallel winding of the conductors a, b.
- FIG. 3 shows an alternative arrangement of electrical conductors a, b for winding the coils 5, 6 of the radio interference suppression choke 3 FIG. 1 , It can be seen here that the conductors a, b are twisted. These twisted conductors a, b can be wrapped around the core 4 of the radio interference suppression choke 3 FIG. 1 wrap.
- FIG. 4 shows a high-current resistant, current-compensated radio interference suppression choke 8 with arranged on different layers electrical conductors a, b.
- the conductors a, b are different for different coils 9, 10 Layers and thus wound around a core 11 at different distances.
- the conductors a, b are as in the embodiment of FIG. 1 over a over almost the entire length of the core extending portion 12 is wound.
- the spacing of the layers is identified by the reference numeral 13.
- FIG. 5 shows the core 11 of the radio interference suppression choke 8 FIG. 4 in an extended view of section 12 over which electrical conductors a, b are wound. It can be seen here that the conductor a of the first coil 9 is wound directly onto the core 11 and the conductor b of the second coil 10 is wound around the first coil 9. Thus, the diameter of the conductor a of the first coil 9 in conjunction with an insulation, not shown, of the conductor a, b determines the distance 13 of the layers of the coils 9, 10th
- FIG. 6 shows a multi-layer interconnection of several, parallel-connected partial coils 14-17 of coils 18, 19 in a stretched representation of a portion of a core 20 of another embodiment of a radio interference choke 21.
- the individual conductors a - d of the partial coils 14-17 are each on one layer wrapped the core 20. To illustrate the winding, the individual conductors are marked on each turn of the coils.
- FIG. 7 shows a further embodiment of a radio interference suppression choke 22 with a multi-layer interconnection of a plurality of parallel-connected sub-coils 23-26 of coils 27, 28 in a stretched representation of a portion of a core 29.
- the individual conductors a - d wound over different layers relative to the core 29 and interconnected are the individual conductors a - d wound over different layers relative to the core 29 and interconnected.
- FIG. 8 shows the course of the nominal inductance on the current strength of the radio interference suppression chokes 3, 8, 21, 22 from the FIGS. 1 to 7 to a prior art RF choke in which the core is divided into two sections and a single coil is disposed on each of the sections. Furthermore, in FIG. 9 the course of the leakage inductance on the current strength of the radio interference suppression choke 3, 8, 21, 22 from the FIGS. 1 to 7 compared with a prior art shown.
- B-fields induced in a current-compensated RFI choke are compensated for in the core.
- a large part of the corresponding H field of the windings enters into the polarization of the core material.
- a small part of the H-field closes over the stray portion of the magnetic circuit.
- the core material is polarized asymmetrically.
- the asymmetries are not important. However, these asymmetries lead to partially very different polarizations of the core material and thus to local saturations of the core material. This effect becomes more pronounced the higher permeable the core material used.
- the geometry of the magnetic Circle is not decisive, but the way of coupling the H-field of the winding into the core material. Particularly at high currents above 100 amperes, the asymmetries lead to partial saturation of the core and thus to the fact that the attenuation of the current-compensated RFI choke is impaired. This effect also occurs more strongly the higher the permeability of the magnetic circuit.
- highly permeable materials are used in order to achieve the required impedance with low numbers of turns and thus with low copper losses.
- the in the FIGS. 1 to 7 described winding structure of the radio interference suppression chokes 3, 8, 21, 22 is characterized in that the windings are evenly and thus scattered low over the circumference of the core 4, 11, 20, 29 distributed. The more the windings remain symmetrical, the more the partial saturation of the core 4, 11, 20, 29 at high currents can be avoided. In this case, the insulation requirements of the electrical conductors a - d in the winding structure are to be observed.
- HSKD high-current-compensated RFI suppression choke
- I zul ⁇ ⁇ i gr L H L ⁇
- a high damping of the differential currents with simultaneously high permissible currents can only be achieved by a small winding leakage inductance.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Filters And Equalizers (AREA)
Abstract
Description
Die Erfindung betrifft eine hochstromfeste, stromkompensierte Funkentstördrossel mit einem in sich geschlossenen Kern aus einem weichmagnetischen Material, mit zumindest zwei um den Kern gewickelten Spulen und mit die Spulen bildenden, in einer Filterschaltung geführten elektrischen Leitern.The invention relates to a high-current resistant, current-compensated radio interference suppression choke with a self-contained core of a soft magnetic material, with at least two wound around the core coils and with the coils forming, guided in a filter circuit electrical conductors.
Solche hochstromfeste, stromkompensierte Funkentstördrosseln werden bei Strömen ab einhundert Ampere benötigt und sind aus der Praxis beispielsweise bei Dieselhybrid-Antrieben bekannt. Der in sich geschlossene Kern kann dabei ringförmig gestaltet sein und bei Bedarf einen Luftspalt aufweisen.Such high-current, current-compensated radio interference suppression chokes are required at currents starting at one hundred amps and are known in practice, for example in diesel hybrid drives. The self-contained core can be designed annular and, if necessary, have an air gap.
Aus der Praxis ist eine hochstromfeste Funkentstördrossel bekannt geworden, bei der der Kern in zwei voneinander getrennte Abschnitte unterteilt ist. Auf jedem der Abschnitte ist eine einzige Spule angeordnet. Die Spulen erstrecken sich damit über weniger als die Hälfte des Umfangs des Kerns. Nachteilig bei der bekannten Funkentstördrossel ist jedoch, dass der Aufbau der Funkentstördrossel für eine ausreichende Dämpfung einen großen Platzbedarf erfordert. Die beschriebene Anordnung der Spulen ist unsymmetrisch und führt zu einer magnetischen Sättigung des Kerns, insbesondere bei hohen Stromstärken. Eine Vergrößerung des Kerns führt zu einem hohen Platzbedarf und damit zu hohen Materialkosten.From practice a high-current radio interference suppression choke has become known, in which the core is divided into two separate sections. On each of the sections a single coil is arranged. The coils thus extend over less than half the circumference of the core. A disadvantage of the known radio interference suppression choke, however, is that the structure of the suppression choke requires sufficient space for sufficient damping. The described arrangement of the coils is asymmetrical and leads to a magnetic saturation of the core, especially at high currents. An enlargement of the core leads to a high space requirement and thus to high material costs.
Der Erfindung liegt das Problem zugrunde, eine Funkentstördrossel der eingangs genannten Art so weiter zu bilden, dass sie auch bei hohen Stromstärken eine hohe Dämpfung und einen besonders geringen Platzbedarf aufweist.The invention is based on the problem of further developing a radio interference suppression choke of the type mentioned at the beginning in such a way that it has a high damping and a particularly small footprint even at high current intensities.
Dieses Problem wird erfindungsgemäß dadurch gelöst, dass die Spulen über denselben Abschnitt des Umfangs des Kerns gewickelt sind.This problem is inventively solved in that the coils are wound over the same portion of the circumference of the core.
Durch diese Gestaltung lässt sich zunächst der Umfang des Kerns für die Anordnung der Spulen weitgehend ausnutzen. Damit kann der Kern besonders kleine Abmessungen aufweisen. Die kleinen Abmessungen führen zu geringen Fertigungskosten. Die Wicklungen der Spulen lassen sich gleichmäßig über den gesamten Umfang des Kerns verteilt anordnen. Die Symmetrie der Wicklungen vermeidet eine partielle Sättigung des Kerns bei hohen Strömen. Dank der Erfindung lässt sich eine hohe Impedanz über die Frequenz bei Gleichstromanwendungen erreichen und damit eine Dämpfung im so genannten Common-Mode.As a result of this design, the circumference of the core for the arrangement of the coils can be largely utilized at first. Thus, the core can have particularly small dimensions. The small dimensions lead to low production costs. The windings of the coils can be arranged uniformly distributed over the entire circumference of the core. The symmetry of the windings avoids partial saturation of the core at high currents. Thanks to the invention, a high impedance can be achieved via the frequency in DC applications, and thus an attenuation in the so-called common mode.
Die erfindungsgemäße Funkentstördrossel gestaltet sich besonders kompakt, wenn der Abschnitt des Kerns, über den beide Spulen gewickelt sind, mehr als der Hälfte des Gesamtumfangs des Kerns entspricht. Diese Gestaltung führt zudem zu besonders geringen Fertigungskosten der erfindungsgemäßen Funkentstördrossel.The RFI choke invention is particularly compact, when the portion of the core over which both coils are wound, more than half of the total circumference of the core corresponds. This design also leads to particularly low production costs of Funkfeststördrossel invention.
Eine besonders gleichmäßige Verteilung der Windungen der Spulen der erfindungsgemäßen Funkentstördrossel lässt sich einfach erreichen, wenn der Abschnitt des Kerns, über den beide Spulen gewickelt sind, nahezu der Gesamtlänge des Kerns entspricht. Durch diese Gestaltung wird der Umfang des Kerns weitmöglichst zur Aufnahme der Spulen genutzt.A particularly even distribution of the turns of the coils of the RFI choke according to the invention can be achieved easily if the portion of the core, over which both coils are wound, corresponds to almost the total length of the core. As a result of this design, the circumference of the core is used as far as possible to accommodate the coils.
Die erfindungsgemäße Funkentstördrossel ist besonders einfach aufgebaut, wenn die elektrischen Leiter unterschiedlicher Spulen parallel gewickelt sind. Durch diese Gestaltung lassen sich die beiden elektrischen Leiter vor der Wicklung baulich zusammenfassen und gemeinsam um den Kern wickeln. Dies führt zudem zu einer weiteren Verringerung der Fertigungskosten der erfindungsgemäßen Funkentstördrossel.The radio interference suppression choke invention is particularly simple in construction, when the electrical conductors of different coils are wound in parallel. With this design, the two electrical conductors before the winding can be structurally combined and wrap around the core. This also leads to a further reduction of the manufacturing costs of the radio interference suppression choke according to the invention.
Eine genaue Positionierung der elektrischen Leiter unterschiedlicher Spulen zueinander lässt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach sicherstellen, wenn die elektrischen Leiter unterschiedlicher Spulen miteinander verdrillt sind und wenn die verdrillten Leiter um den Kern gewickelt sind.Accurate positioning of the electrical conductors of different coils to each other can be easily ensured according to another advantageous embodiment of the invention, when the electrical conductors of different coils are twisted together and when the twisted conductors are wound around the core.
Ein besonders kompakter Aufbau der erfindungsgemäßen Funkentstördrossel lässt sich einfach erreichen, wenn die elektrischen Leiter in unterschiedlichen Lagen um den Kern gewickelt sind. Durch diese Gestaltung lässt sich im Vergleich zu einer einlagigen Wicklung in Abhängigkeit von der Anzahl der Lagen ein Vielfaches der Windungen der Leiter auf dem Kern anordnen.A particularly compact construction of the radio interference suppression choke according to the invention can be achieved simply if the electrical conductors are wound in different positions around the core. As a result of this configuration, a multiple of the turns of the conductors can be arranged on the core in comparison to a single-layer winding, depending on the number of layers.
Vorgesehene Dämpfungseigenschaften der erfindungsgemäßen Funkentstördrossel lassen sich einfach einstellen, wenn die Spulen aus mehreren, parallel oder in Reihe geschalteten Teilspulen zusammengesetzt sind. Die Verschaltung der Teilspulen lässt vielfältige Möglichkeiten zu. Beispielsweise können die Leiter unterschiedlicher Teilspulen auf unterschiedlichen Lagen gewickelt sein. Alternativ dazu können die Leiter von Teilspulen unterschiedlicher Spulen parallel auf einer Lage gewickelt und die weiteren Teilspulen der unterschiedlichen Spulen auf einer anderen Lage.Provided damping characteristics of Funkfeststrossrossel invention can be easily adjusted when the coils are composed of several, parallel or series-connected partial coils. The interconnection of the partial coils allows many possibilities. For example, the conductors of different partial coils can be wound on different layers. Alternatively, the conductors of partial coils of different coils can be wound in parallel on one layer and the other partial coils of the different coils on a different layer.
Häufig entsteht im Betrieb der Funkentstördrossel Wärme, welche abgeführt werden muss. Man könnte die Funkentstördrossel in einem Luftstrom kühlen. Eine besonders hohe Kühlleistung lässt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung erreichen, wenn die elektrischen Leiter als Hohlleiter ausgebildet sind. Durch diese Gestaltung lässt sich ein Kühlmedium, beispielsweise Kühlwasser oder Luft, durch die Hohlleiter fördern und damit die Wärme abtransportieren.Heat is often generated during operation of the radio interference suppression choke, which must be dissipated. You could cool the radio interference suppression choke in a stream of air. A particularly high cooling capacity can be achieved according to another advantageous embodiment of the invention, when the electrical conductors are formed as a waveguide. By this design, a cooling medium, such as cooling water or air, can promote through the waveguide and thus carry away the heat.
Die elektrischen Leiter werden gemäß einer anderen vorteilhaften Weiterbildung der Erfindung in ihrer Lage zuverlässig gehalten, wenn die elektrischen Leiter massiv ausgebildet sind. Durch diese Gestaltung weisen die elektrischen Leiter eine hohe Eigenstabilität auf.The electrical conductors are reliably held in their position according to another advantageous embodiment of the invention, when the electrical conductors are solid. By this design, the electrical conductors have a high intrinsic stability.
Die elektrischen Leiter sind gemäß einer anderen vorteilhaften Weiterbildung der Erfindung besonders flexibel, wenn die elektrischen Leiter mehradrig gestaltet sind.The electrical conductors are particularly flexible according to another advantageous embodiment of the invention, when the electrical conductors are designed multi-core.
Die Erfindung lässt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon in der Zeichnung dargestellt und wird nachfolgend beschrieben. Diese zeigt in
- Fig. 1
- eine erfindungsgemäße, in einer Filterschaltung montierte Funkentstördrossel,
- Fig. 2a
- zwei elektrische Leiter der Funkentstördrossel aus
,Figur 1 - Fig. 2b
- einen Abschnitt eines Kerns der Funkentstördrossel aus
, um den die elektrischen Leiter gewickelt sind, in gestreckter Darstellung,Figur 1 - Fig. 3
- zwei verdrillte elektrische Leiter für die Funkentstördrossel,
- Fig. 4
- eine weitere Ausführungsform der Funkentstördrossel,
- Fig. 5
- einen Abschnitt eines Kerns der Funkentstördrossel aus
, um den elektrische Leiter gewickelt sind, in gestreckter Darstellung,Figur 4 - Fig. 6
- einen Abschnitt eines Kerns einer Funkentstördrossel mit einer Verschaltung mehrerer Lagen von elektrischen Leitern,
- Fig. 7
- eine gegenüber der Anordnung nach
alternative Verschaltung mehrerer Lagen von elektrischen Leitern,Figur 6 - Fig. 8
- eine graphische Darstellung des Verlaufs der Nenninduktivität über die Stromstärke der erfindungsgemäßen Funkentstördrossel gegenüber einem Stand der Technik,
- Fig. 9
- eine graphische Darstellung des Verlaufs der Streuinduktivität über die Stromstärke der erfindungsgemäßen Funkentstördrossel gegenüber einem Stand der Technik.
- Fig. 1
- a radio interference choke according to the invention, mounted in a filter circuit,
- Fig. 2a
- two electrical conductors of the radio interference suppression choke off
FIG. 1 . - Fig. 2b
- a section of a core of the radio interference choke off
FIG. 1 around which the electrical conductors are wound, in stretched form, - Fig. 3
- two twisted electrical conductors for the radio interference choke,
- Fig. 4
- a further embodiment of the radio interference choke,
- Fig. 5
- a section of a core of the radio interference choke off
FIG. 4 to the electrical conductor are wound, in stretched form, - Fig. 6
- a section of a core of a radio interference choke with an interconnection of several layers of electrical conductors,
- Fig. 7
- one opposite the arrangement according to
FIG. 6 alternative interconnection of several layers of electrical conductors, - Fig. 8
- 4 is a graphical representation of the course of the nominal inductance over the current intensity of the radio interference suppression choke according to the invention compared with a prior art;
- Fig. 9
- a graphical representation of the course of the leakage inductance on the current strength of the RFI choke according to the invention over a prior art.
Der Kern 4 ist in der dargestellten Ausführungsform ohne Luftspalt dargestellt. Selbstverständlich kann der Kern 4 auch einen Luftspalt aufweisen. Weiterhin kann der Kern 4 auch abweichend von der dargestellten ringförmigen Gestaltung rechteckig oder dergleichen gestaltet sein.The
Die Verläufe der Funkentstördrossel 3, 8, 21, 22 aus den
Allgemein werden bei einer stromkompensierten Funkentstördrossel in den Kern induzierte B-Felder kompensiert. Ein großer Teil des entsprechenden H-Feldes der Wicklungen geht in die Polarisation des Kernmaterials ein. Ein kleiner Teil des H-Feldes schließt sich über den Streuanteil des magnetischen Kreises. In Verbindung mit dem unsymmetrischen Wicklungsaufbau bei der Funkentstördrossel nach dem Stand der Technik wird auch das Kernmaterial unsymmetrisch polarisiert. Bei geringen Stromstärken oder großvolumigen Kernen sind die Unsymmetrien nicht von Bedeutung. Jedoch führen diese Unsymmetrien zu partiell sehr unterschiedlichen Polarisationen des Kernmaterials und damit zu lokalen Sättigungen des Kernmaterials. Dieser Effekt tritt umso stärker auf, je höher permeabel das verwendete Kernmaterial ist. Die Geometrie des magnetischen Kreises ist dabei allein nicht aussschlaggebend, sondern die Art der Einkoppelung des H-Feldes der Wicklung in das Kernmaterial. Besonders bei hohen Strömen oberhalb 100 Ampere führen die Unsymmetrien zu partiellen Sättigungen des Kerns und damit dazu, dass die Dämpfung der stromkompensierten Funkentstördrossel beeinträchtigt wird. Dieser Effekt tritt zudem umso stärker auf, je höher die Permeabilität des magnetischen Kreises ist. Jedoch werden gerade bei stromkompensierten Funkentstördrosseln hochpermeable Werkstoffe eingesetzt, um mit geringen Windungszahlen und damit mit geringen Kupferverlusten die benötigten Impendanzen zu erreichen.In general, B-fields induced in a current-compensated RFI choke are compensated for in the core. A large part of the corresponding H field of the windings enters into the polarization of the core material. A small part of the H-field closes over the stray portion of the magnetic circuit. In connection with the asymmetrical winding structure in the radio interference suppression choke according to the prior art, the core material is polarized asymmetrically. At low currents or large-volume cores, the asymmetries are not important. However, these asymmetries lead to partially very different polarizations of the core material and thus to local saturations of the core material. This effect becomes more pronounced the higher permeable the core material used. The geometry of the magnetic Circle is not decisive, but the way of coupling the H-field of the winding into the core material. Particularly at high currents above 100 amperes, the asymmetries lead to partial saturation of the core and thus to the fact that the attenuation of the current-compensated RFI choke is impaired. This effect also occurs more strongly the higher the permeability of the magnetic circuit. However, especially with current-compensated RF suppression chokes, highly permeable materials are used in order to achieve the required impedance with low numbers of turns and thus with low copper losses.
Der in den
Die Grundlagen der Erfindung werden nachstehend näher erläutert. Die Wirkung der hochstromkompensierten Funkentstördrossel (HSKD) beruht auf der hohen Empfindlichkeit (Induktivität Lh) des weichmagnetischen Kreises auf kleine Differenzströme Δi. Die maximale Größe der noch zu dämpfenden Differenzströme Δigr wird bestimmt durch
Bei Hochstromanwendungen Iv ≥ 100 A) wird der Kern der SKD durch den Streufluss Lσ in die Sättigung getrieben und begrenzt dadurch die Stromhöhe Izul.
Eine Verminderung der Wicklungsstreuinduktivität erhöht den zulässigen Grenzstrom Izul.
Eine hohe Dämpfung der Differenzströme bei gleichzeitig hohen zulässigen Strömen kann nur durch eine kleine Wicklungsstreuinduktivität erreicht werden.A high damping of the differential currents with simultaneously high permissible currents can only be achieved by a small winding leakage inductance.
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202011003256U DE202011003256U1 (en) | 2011-02-25 | 2011-02-25 | High-current resistant, current-compensated radio interference suppression choke |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2495742A1 true EP2495742A1 (en) | 2012-09-05 |
EP2495742B1 EP2495742B1 (en) | 2016-03-30 |
Family
ID=45566815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12000413.0A Active EP2495742B1 (en) | 2011-02-25 | 2012-01-24 | High-voltage resistant electricity-compensated interference suppression choke |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2495742B1 (en) |
DE (1) | DE202011003256U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019200051A1 (en) * | 2019-01-04 | 2020-07-09 | Rolls-Royce Deutschland Ltd & Co Kg | Air coil for a multilevel converter |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013112325B4 (en) * | 2013-11-08 | 2024-02-08 | Sma Solar Technology Ag | Toroidal coil and manufacturing process for a toroidal coil |
DE102020134147A1 (en) | 2020-12-18 | 2022-06-23 | Vacuumschmelze Gmbh & Co. Kg | INDUCTIVE COMPONENT WITH MAGNETIC CORE AND WINDING MANUFACTURED BY ADDITIVE MANUFACTURING |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3946349A (en) * | 1971-05-03 | 1976-03-23 | The United States Of America As Represented By The Secretary Of The Air Force | High-power, low-loss high-frequency electrical coil |
CA1210464A (en) * | 1982-12-24 | 1986-08-26 | Patrick E. Burke | Iron powder encapsulated liquid cooled reactors |
DE3621573A1 (en) * | 1986-06-27 | 1988-01-07 | Siemens Ag | Current-compensated spark-suppression inductor (radio-suppression inductor) |
EP0540958A1 (en) * | 1991-11-02 | 1993-05-12 | Asea Brown Boveri Ag | Toroidal inductance |
US6507260B1 (en) * | 2000-04-27 | 2003-01-14 | Echelon Corporation | Electrical transformer for use with twisted pair |
US20100102900A1 (en) * | 2006-11-06 | 2010-04-29 | Antonio Poveda Lerma | Process for reduction of the common mode current for power line communications equipment |
WO2010120877A1 (en) * | 2009-04-17 | 2010-10-21 | Molex Incorporated | Toroid with channels and circuit element and modular jack with same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2971173A (en) * | 1957-11-25 | 1961-02-07 | Hitoshi H Kajihara | Wide band radio frequency transformers |
DE2115574B2 (en) * | 1971-03-31 | 1973-03-22 | AEG-Elotherm GmbH, 5630 Remscheid-Hasten | POWER TRANSFORMER FOR MEDIUM FREQUENCY |
DE2602668C3 (en) * | 1976-01-24 | 1978-11-09 | Felten & Guilleaume Carlswerk Ag, 5000 Koeln | High-voltage resistant broadband transformer for communications engineering |
JP2005150198A (en) * | 2003-11-12 | 2005-06-09 | Matsushita Electric Ind Co Ltd | Transformer for communication |
-
2011
- 2011-02-25 DE DE202011003256U patent/DE202011003256U1/en not_active Expired - Lifetime
-
2012
- 2012-01-24 EP EP12000413.0A patent/EP2495742B1/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3946349A (en) * | 1971-05-03 | 1976-03-23 | The United States Of America As Represented By The Secretary Of The Air Force | High-power, low-loss high-frequency electrical coil |
CA1210464A (en) * | 1982-12-24 | 1986-08-26 | Patrick E. Burke | Iron powder encapsulated liquid cooled reactors |
DE3621573A1 (en) * | 1986-06-27 | 1988-01-07 | Siemens Ag | Current-compensated spark-suppression inductor (radio-suppression inductor) |
EP0540958A1 (en) * | 1991-11-02 | 1993-05-12 | Asea Brown Boveri Ag | Toroidal inductance |
US6507260B1 (en) * | 2000-04-27 | 2003-01-14 | Echelon Corporation | Electrical transformer for use with twisted pair |
US20100102900A1 (en) * | 2006-11-06 | 2010-04-29 | Antonio Poveda Lerma | Process for reduction of the common mode current for power line communications equipment |
WO2010120877A1 (en) * | 2009-04-17 | 2010-10-21 | Molex Incorporated | Toroid with channels and circuit element and modular jack with same |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019200051A1 (en) * | 2019-01-04 | 2020-07-09 | Rolls-Royce Deutschland Ltd & Co Kg | Air coil for a multilevel converter |
Also Published As
Publication number | Publication date |
---|---|
EP2495742B1 (en) | 2016-03-30 |
DE202011003256U1 (en) | 2012-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3619800B1 (en) | Inverter | |
DE102017205004B4 (en) | circuit breaker | |
DE2411246C3 (en) | Three-phase transformer | |
DE10260246A1 (en) | Coil arrangement with variable inductance | |
EP0215286A1 (en) | High power pulse transformer for short high-voltage and/or high-current pulses | |
WO2019120882A1 (en) | Transformer core and transformer | |
EP2546842A2 (en) | Coil for limiting energy | |
EP2495742B1 (en) | High-voltage resistant electricity-compensated interference suppression choke | |
EP2603920B1 (en) | Coil arrangement, in particular an alternating-current transformer, use and arrangement for energy transmission without contact | |
DE102016223195A1 (en) | Transformer device, transformer and method of manufacturing a transformer device | |
DE202005008726U1 (en) | Dispersive transformer e.g. for DC-DC converter power pack, has one part of winding enclosing two limbs, of which one has an air-gap | |
DE102013204638B4 (en) | Device for detecting fault currents | |
WO2019115207A1 (en) | Common-mode/differential-mode throttle for an electrically driveable motor vehicle | |
DE102013111433A1 (en) | Planar balanced coil for integrated RF circuits | |
DE102015206788B3 (en) | NMR transmission / reception coil arrangement | |
EP3824486A1 (en) | Core assembly having magnetic properties for an electrical device, and throttle comprising such a core assembly | |
DE1591565C3 (en) | Non-reciprocal quadrupole | |
EP3145275B1 (en) | Induction heating coil | |
WO2017102134A1 (en) | Arrangement for compensating disturbance voltages induced in a transformer | |
EP3402062B1 (en) | Connection of at least two modular multilevel converters | |
DE1271230B (en) | High frequency balancing transformer | |
EP0709865A1 (en) | Method and device for coupling magnetic material with electric windings | |
EP3139392A1 (en) | Medium frequency transformer and semiconductor converter with a medium frequency transformer | |
DE102020214444A1 (en) | Transformer, electrical circuitry and magnetic resonance imaging equipment | |
EP2862251B1 (en) | Device for a three-phase load |
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 |
|
17P | Request for examination filed |
Effective date: 20130214 |
|
17Q | First examination report despatched |
Effective date: 20150220 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20151027 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
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 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 786148 Country of ref document: AT Kind code of ref document: T Effective date: 20160415 |
|
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: 502012006473 Country of ref document: DE |
|
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: 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: 20160630 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: 20160330 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: 20160701 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: 20160330 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20160330 |
|
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: 20160330 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: 20160330 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: 20160330 |
|
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: 20160330 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20160330 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: 20160730 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: 20160330 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20160330 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: 20160330 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: 20160801 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: 20160330 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: 20160330 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: 20160330 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 6 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502012006473 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: 20160330 |
|
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 |
|
26N | No opposition filed |
Effective date: 20170103 |
|
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: 20160330 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170131 |
|
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: 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: 20160330 |
|
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: 20170131 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170131 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
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: 20170124 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20170131 |
|
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: 20170124 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 786148 Country of ref document: AT Kind code of ref document: T Effective date: 20170124 |
|
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: 20170124 |
|
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: 20160330 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20160330 |
|
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: 20120124 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20160330 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20160330 |
|
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: 20160330 |
|
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: 20160330 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20231215 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20231026 Year of fee payment: 13 Ref country code: GB Payment date: 20240123 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20240104 Year of fee payment: 13 Ref country code: FR Payment date: 20240125 Year of fee payment: 13 |