EP4042458A1 - Common mode choke - Google Patents
Common mode chokeInfo
- Publication number
- EP4042458A1 EP4042458A1 EP20785719.4A EP20785719A EP4042458A1 EP 4042458 A1 EP4042458 A1 EP 4042458A1 EP 20785719 A EP20785719 A EP 20785719A EP 4042458 A1 EP4042458 A1 EP 4042458A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- mode choke
- common mode
- opening
- inner conductor
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 124
- 230000004907 flux Effects 0.000 claims abstract description 3
- 239000000919 ceramic Substances 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005192 partition Methods 0.000 description 11
- 238000004804 winding Methods 0.000 description 10
- 239000000969 carrier Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- SWPMTVXRLXPNDP-UHFFFAOYSA-N 4-hydroxy-2,6,6-trimethylcyclohexene-1-carbaldehyde Chemical compound CC1=C(C=O)C(C)(C)CC(O)C1 SWPMTVXRLXPNDP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012809 cooling fluid 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
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F17/062—Toroidal core with turns of coil around it
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2895—Windings disposed upon ring cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F2017/0093—Common mode choke coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F2017/065—Core mounted around conductor to absorb noise, e.g. EMI filter
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F2017/067—Core with two or more holes to lead through conductor
Definitions
- the invention relates to a common mode choke.
- the common mode choke has an in particular magnetically permeable toroidal core and a coil.
- the common-mode choke has at least one further coil, the coil and the further coil each being arranged in the area of the toroidal core in such a way that a magnetic flux penetrating the coils can detect the toroidal core.
- EMC electro-magnetic compatibility
- common-mode chokes have at least two or only two coils, which can interact magnetically with one another via a toroidal core.
- the coil current in the two coils is preferably conducted in mutually different directions, so that EMC disturbances in the toroidal core magnetically cancel each other out.
- the toroidal core encloses a preferably cylindrical through-hole.
- the coils each have at least one or only one electrical inner conductor, in particular a busbar, the inner conductor being arranged in the opening.
- the inner conductors arranged in the opening together form a shape corresponding to the opening, preferably a cross-sectional shape, and thus jointly fill the opening.
- the common-mode choke can thus advantageously be designed to be particularly space-saving. This is because it was recognized that the impedance of a common mode choke can be effectively increased if the cross-sectional area of the opening can be fully energized by the inner conductors.
- the inner conductors each have a cross-section in the shape of a segment of a circle.
- the particularly cylindrical opening can thus be completely filled by the inner conductor.
- the coils each have only one coil turn, the inner conductors each being semicircular in cross section for this purpose.
- the coils each have two coil turns.
- the inner conductors are preferably each embodied in the form of a quarter segment in cross section. The breakthrough can thus advantageously be filled in to fill space by two coil winding sections in each case.
- Each inner conductor forms a turn section of a coil turn.
- the inductance can advantageously be increased quadratically with two or more coil turns.
- the common mode choke has an electrically insulating holding body.
- the holding body at least partially encloses the toroidal core and has a hollow cylinder molded onto the holding body, a cavity of the hollow cylinder forming the opening for receiving the inner conductor.
- the toroidal core can thus advantageously be electrically isolated from the inner conductors.
- the inner conductors can thus advantageously be designed as solid, in particular uninsulated, metal pieces, in particular copper pieces.
- the inner conductors are preferably each designed as a straight rod, in particular.
- the inner conductors can be provided at low cost, for example as an extruded profile or a rolled profile.
- the inner conductors are each connected at one end, in particular one end face, to a busbar, which is led away from the ends of the inner conductor, in particular at right angles.
- the busbar is formed, for example, by a stamped grid, also called a leadframe, or by a circuit carrier, in particular a ceramic circuit carrier.
- the common-mode choke can thus advantageously be provided in a space-saving manner.
- the inner conductors can thus advantageously be connected with one end face to the busbar in a materially and electrically conductive manner, for example soldered or welded.
- the busbar can, for example, be formed at an angle leading away from one end, in particular an end face of the inner conductor, at least partially enclosing the toroidal core.
- the angled busbar can thus advantageously form an outer conductor, with an angled section extending parallel to the inner conductor.
- the common-mode choke can thus advantageously be reflow-soldered to an end face of the inner conductor with a circuit carrier.
- the busbar which is electrically conductive, in particular cohesively connected to an opposite end of the inner conductor, can be soldered to the circuit carrier with an end facing away therefrom.
- the busbar and the inner conductor preferably each have an end which lies in one plane, in particular the circuit carrier plane.
- the invention also relates to a contact system.
- the contact system has a common mode choke of the type described above.
- the contact system preferably comprises an in particular ceramic circuit carrier which has at least one outer electrically conductive layer and at least one electrically insulating layer, in particular a ceramic layer.
- the circuit carrier is preferably a ceramic circuit carrier in which the electrically insulating layer is formed by a ceramic layer.
- the electrically conductive layer is preferably a copper layer or an aluminum layer.
- the electrically conductive layer forms a busbar that is connected to one end of one of the inner conductors.
- the circuit carrier can thus advantageously form a busbar which forms part of a coil winding, the part being connected to the inner conductor.
- the busbar can further preferably form a connecting element which electrically connects two coil windings of the same coil to one another.
- a coil comprising two turns, for example two inner conductors arranged adjacent to one another, which are each arranged in the opening.
- the inner conductors each form part of a coil winding of the same coil, the coil windings each coupling to the end faces of the inner conductor being guided around the toroidal core at right angles.
- the parts of the coil winding that are guided around the toroidal core are formed, for example, by a busbar, in particular a stamped grid, which forms an outer conductor.
- the connection of the coil windings of the same coil to one another to form a serial electrical connection of the same can be formed by means of the conductor rail of the circuit carrier, which contacts an inner conductor.
- a coil turn can thus comprise an inner conductor, the angled outer conductor and an electrically conductive layer of a circuit carrier, for example an IMS substrate.
- the inner conductor and the outer conductor are preferably materially connected to a substrate, in particular an IMS substrate, by means of a solder.
- an end of the inner conductor facing away from the circuit carrier is connected to a busbar, which preferably forms an outer conductor, which is shaped from the rejecting end to lead around the toroidal core and is connected to the circuit carrier.
- the busbar is preferably formed by a stamped grid or leadframe.
- a part of the coil winding which is formed by the busbar, in particular the stamped grid can advantageously be provided by a preformed sheet metal part, in particular a sheet copper part, which is attached to an end of the Put on the inner conductor, and there can be soldered or spot-welded to the inner conductor.
- the choke coil can thus advantageously be provided at low cost.
- the circuit carrier is connected in a thermally conductive manner to a heat sink at least in the area of the inner conductor and / or the toroidal core.
- the choke coil is furthermore preferably enclosed between two circuit carriers, in particular of ceramic design, in particular in the manner of a sandwich.
- the contact arrangement formed in this way can advantageously be connected to a heat sink from both sides of the circuit carrier, in particular from outwardly facing sides of the circuit carrier.
- TIM Thermal Insulation Material
- an electrically insulating separating web or a separating wall is arranged between inner conductors that are different from one another.
- the separating web is, for example, a ceramic web, glass web or plastic web.
- the separating web is preferably molded onto the holding body. In this way, the holding body can advantageously be designed in one piece together with the separating web as a plastic injection-molded part.
- the separating web is formed, for example, with a T-shaped or double-T-shaped cross-section, the T-legs each being arranged to at least partially encompass a corner of an inner conductor.
- the corners of the inner conductors are thus advantageously protected against high-voltage breakdowns or arcing.
- FIG. 1 shows an exemplary embodiment for a contact arrangement with a common mode choke in a sectional illustration, which is enclosed between two circuit carriers and connected to them;
- FIG. 2 shows the common mode choke shown in FIG. 1 in a cross-sectional view
- FIG. 3 shows an embodiment for a common mode choke with two coil windings for each coil of the common mode choke
- FIG. 4 shows an exemplary embodiment for a common mode choke with three two coil turns for each coil of the common mode choke
- Figure 5 shows an embodiment for a common mode choke with a rectangular shaped ring core
- Figure 1 shows an embodiment of a contact arrangement 10.
- the contact arrangement 10 has a common mode choke 1, which is partially shown in a sectional view.
- the common mode choke 1 has a toroidal core 2 in the form of a hollow cylinder in this exemplary embodiment, which in this exemplary embodiment is embedded in a plastic jacket 3.
- the common mode choke 1 also has a cylindrical opening 4.
- the plastic jacket 3 comprises an outer sleeve 28 surrounding the toroidal core 2 and, in this exemplary embodiment, also extends on an inner wall of the toroidal core 2, so that the plastic jacket on the inside of the toroidal core 2 forms a hollow cylinder 29, in its cavity - and thus also in the opening 4 - the coils, in particular the inner conductor of the common mode choke, can be arranged.
- the inner conductor 6 forms part of a first coil of the common-mode choke.
- the inner conductor 7 forms part of a second coil of the common-mode choke.
- the coils of the common-mode choke each have only one partial turn.
- the partial turn extends in the opening and from the opening in the ring core 2, which is in particular arranged centrally.
- the partial turn In contrast to a full turn, which surrounds the toroidal core once, the partial turn only runs towards the inner conductor and leads away from it again after passing through the opening.
- the contact arrangement 10 also includes two circuit carriers 8 and 9, in particular ceramic-shaped.
- the common-mode choke 1, in particular the toroidal core 2 and the at least two inner conductors 6 and 7, are in this exemplary embodiment between the circuit carriers 8 and 9 - in particular in the manner of a sandwich - locked in.
- the circuit carrier 8 comprises an electrically insulating layer 14 and two electrically conductive layers 15 and 16, in particular arranged in one plane, which each form a busbar.
- the circuit carrier 9 comprises an electrically insulating layer 11 and two electrically conductive layers 12 and 13.
- the inner conductors 6 and 7 each have two end faces which are each materially connected, in particular soldered, to an electrically conductive layer of one of the circuit carriers.
- the inner conductor 7 has an end face 23 which is connected to the electrically conductive layer 12. An end of the inner conductor 7 opposite to this is formed by an end face 24 which is materially connected to the electrically conductive layer 15 of the circuit carrier 8.
- the electrically conductive layers 12 and 15, which each form a busbar, together with the inner conductor 7 form a U-shape which surrounds the toroidal core 2.
- the inner conductors 12 and 15 thus together with the inner conductor 7 form a coil, of which an electromagnetically effective part in the form of the inner conductor 7 extends in the opening 4.
- the inner conductor 6 has an end face 25 and an end face 26, which are each formed by ends of the inner conductor 6 facing away from one another.
- the end face 25 is materially connected to the electrically conductive layer 13, and the end face 26 formed at the other end of the inner conductor is materially connected to the electrically conductive layer 16.
- the electrically conductive layers 13 and 16, together with the inner conductor 6, thus form a U-shape which surrounds the toroidal core 2 on a circumferential section opposite the inner conductor 7.
- the circuit carrier 8, in particular the electrically insulating ceramic layer 14, is connected to a heat sink 17 in a thermally conductive manner in this exemplary embodiment.
- the heat sink 17 has fluid channels for guiding a cooling fluid, of which one cooling channel 18 is designated by way of example.
- Loss heat 27, which is generated when the inner conductor 6 or the inner conductor 7 is energized, can be conducted from the inner conductors 6 or 7 via the electrically conductive layers 16 or 15, and further via the electrically insulating layer 14, in particular a ceramic layer, to the heat sink 17 .
- the heat sink 17 is formed, for example, by an aluminum block.
- both circuit carriers 8 and 9 which enclose the common-mode choke 1 between one another, can each be connected to a heat sink.
- the coils of the common-mode choke 1 are electrically isolated from one another by an insulating web 5, previously also referred to as a separating web.
- the common mode choke can thus safely separate a potential of several hundred volts, or between 500 and 1000 volts, which is dropped across the coils, including the inner conductors 6 and 7.
- the contact arrangement 10 can have only one circuit carrier, for example the circuit carrier 8.
- the end faces 23 and 25 of the inner conductors 6 and 7, which face away from the circuit carrier 8, can each be connected to a stamped grid or leadframe, which is led from the inner conductor around the toroidal core 2 and as far as the circuit carrier 8 and is connected there to the circuit carrier 8.
- the common mode choke formed in this way can, for example, be connected to a heat sink and dissipate heat loss to the heat sink via the circuit carrier 8.
- the lead frame or leadframe can form an outer conductor that connects to the inner conductor and thus forms part of a full turn of the coil.
- FIG. 2 shows the throttle 1 shown in FIG. 1 in a sectional illustration, the underlying section extending transversely to a longitudinal extension of the opening 4.
- the toroidal core 2 is at least partially or completely enclosed by the plastic jacket 3.
- the plastic jacket 3 comprises an outer shell 28 which encloses a lateral surface of the toroidal core 2, which is cylindrically shaped in this exemplary embodiment, and an inner cylinder 29, which extends in an opening formed in the toroidal core 2 and covers an inner wall of the toroidal core.
- the electrically insulating inner cylinder 29 is designed as a hollow cylinder and encloses the opening 4.
- the inner conductors 6 and 7 already shown in FIG. 1 are arranged in the opening 4 and extend parallel to one another and along a longitudinal axis 30 already shown in FIG 6 and 7 of the common mode choke 1 each form a coil turn, or in connection with the circuit carriers 8 and 9, a partial turn, the remaining part of the turn being formed by electrically conductive layers of the circuit carrier.
- the inner conductors 6 and 7 are configured in the shape of a segment of a circle, in particular a semicircle.
- the opening 4 with the exception of the partition wall 5, can be almost completely or completely through the inner conductors 6 and 7 must be completed in full.
- the opening 4 is divided by the partition into two sub-spaces 21 and 22, in each of which coils or coil parts that are different from one another or coil parts that differ from one another are arranged.
- the subspaces 21 and 22 thus represent coils of the common mode choke 1 that are different from one another.
- FIG. 2 also shows a parting plane 20 which divides the opening 4 into two subspaces 20 and 21, in particular of equal size.
- the sub-spaces 20 and 21 are each separated from one another by the partition 5, so that the inner conductors 6 and 7, which are each arranged in one of the sub-spaces 20 and 21, are electrically isolated from one another in a breakdown-proof manner.
- FIG. 3 shows an exemplary embodiment for a common-mode choke 19.
- the common-mode choke 19 has an opening 4 which is divided into two subspaces 21 and 22 by a partition 39, previously also referred to as a partition.
- a partition 39 previously also referred to as a partition.
- parts, in particular turns, of a coil are arranged so that the coil parts, which are each accommodated in a sub-space, are electrically isolated from the coil parts in the sub-space opposite the partition 39.
- each turn comprises an inner conductor which extends in a partial space of the opening 4.
- an inner conductor 31 and an inner conductor 32 are arranged in the subspace 21, each of which forms part of a coil turn for a coil of the common mode choke 19.
- two inner conductors 33 and 34 are arranged, which each form part of a further coil.
- the remaining parts of the coil winding can be formed by an electrically conductive layer of a circuit carrier and an electrical outer conductor, for example a punched grid, which electrically connect the inner conductors to one another in series in such a way that a coil current flows in the inner conductors of the same coil in the same direction in the opening.
- the inner conductors 31, 32, 33 and 34 are each formed in cross section in the shape of a segment of a circle, in particular in the shape of a quarter segment.
- two inner conductors, each formed in the shape of a quarter-circle segment in cross section, can jointly almost completely or completely fill a semicylindrical subspace.
- two inner conductors can be connected in parallel to one another to form a coil with only one turn.
- the coil then has at least one, in particular two, inner conductors for each coil turn.
- FIG. 4 shows an exemplary embodiment for a common mode choke 35.
- the common mode choke 35 comprises a toroidal core 2 in which an opening 4 is formed.
- an electrically insulating partition 36 is formed, which divides the cylindrical opening 4 into two, in particular, semi-cylindrical partial spaces 20 and 21.
- each coil turn of the common mode choke 35 comprises three coil turns, each coil turn comprising an inner conductor as part of the coil turn.
- the three inner conductors of the coil, which are arranged in the subspace 21, are each formed in the shape of a segment of a circle in cross section, the segments of the circle together forming a semicircle along a radial circumference.
- the sub-space 22 Opposite the sub-space 21, on the other side of the partition 36, the sub-space 22 is arranged, in which three inner conductors of a further coil are arranged.
- the further coil thus comprises three coil turns, each coil turn having one of the three inner conductors.
- One inner conductor 38 of the inner conductors of the further coil is designated by way of example.
- the opening 4 is completely filled by the inner conductor of the coil and the further coil, and by the partition separating the coils.
- the Inner conductors of each coil thus form a half-cylinder for this purpose, the inner conductors of both coils, in particular the coil and the further coil, together form a full cylinder.
- three inner conductors can be connected in parallel to one another to form a coil with only one turn.
- the coil then has at least one, in particular three, inner conductors for each coil turn.
- FIG. 5 shows an exemplary embodiment for a choke coil 40.
- the choke coil 40 has - unlike the choke coils shown in FIGS. 2, 3 and 4 - a rectangularly shaped toroidal core 41.
- the toroidal core 41 encloses an opening 42.
- Four inner conductors are arranged in the opening 42, two inner conductors arranged adjacent to one another forming parts of a coil of the common mode choke.
- a first coil comprises the inner conductors 43 and 44.
- Another coil comprises the inner conductors 45 and 46.
- the inner conductors 43 and 44 are separated from the inner conductors of the further coil 45 and 46 by an electrically insulating partition 47.
- the partition 47 is part of a plastic body in which the toroidal core 41 is at least partially or completely embedded.
- the inner conductors 43, 44, 45 and 46 each have a rectangular or square cross section in this exemplary embodiment.
- the toroidal core which has a rectangular or square opening, can advantageously be filled completely by the inner conductor and thus with the best possible use of space.
- the common-mode choke can thus be implemented in a small installation space with a large inductance.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019215514.6A DE102019215514A1 (en) | 2019-10-10 | 2019-10-10 | Common mode choke |
PCT/EP2020/077281 WO2021069266A1 (en) | 2019-10-10 | 2020-09-30 | Common mode choke |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4042458A1 true EP4042458A1 (en) | 2022-08-17 |
Family
ID=72717862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20785719.4A Pending EP4042458A1 (en) | 2019-10-10 | 2020-09-30 | Common mode choke |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4042458A1 (en) |
CN (1) | CN114450763A (en) |
DE (1) | DE102019215514A1 (en) |
WO (1) | WO2021069266A1 (en) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5730834Y2 (en) * | 1977-11-22 | 1982-07-07 | ||
FR2428308A1 (en) * | 1978-06-08 | 1980-01-04 | Mayer Ferdy | DIFFERENTIAL TRANSFORMER OF ELECTRICAL PROTECTION RELAYS |
DE4221769C1 (en) * | 1992-07-02 | 1994-01-27 | Abb Patent Gmbh | Producing inductive constructional component - winding at least one winding around magnet core emerging from floor plate and core plate between which are vertical metal bar groups. |
DE10223995C1 (en) * | 2002-05-29 | 2003-11-27 | Epcos Ag | Coil body for annular choke coil has wire guide devices at its ends for maintaining wire windings in required pattern |
JP4905828B2 (en) * | 2006-07-14 | 2012-03-28 | Tdkラムダ株式会社 | Inductance element |
US7961071B2 (en) * | 2008-10-20 | 2011-06-14 | Eaton Corporation | Multiphase inductor and filter assemblies using bundled bus bars with magnetic core material rings |
EP2977996A1 (en) * | 2014-07-21 | 2016-01-27 | Siemens Aktiengesellschaft | Choke coil of a power converter |
DE102016210746A1 (en) * | 2016-06-16 | 2017-12-21 | Vacuumschmelze Gmbh & Co. Kg | Inductive component, current-compensated inductor and method for producing an inductive component |
JP6617306B2 (en) * | 2016-06-21 | 2019-12-11 | 株式会社エス・エッチ・ティ | Common mode choke coil |
DE102016223195A1 (en) * | 2016-11-23 | 2018-05-24 | Robert Bosch Gmbh | Transformer device, transformer and method of manufacturing a transformer device |
EP3483905B1 (en) * | 2017-11-10 | 2020-07-15 | ABB Schweiz AG | Choke |
DE112018006472T5 (en) * | 2017-12-22 | 2020-09-03 | Tritium Pty Ltd | A COIL ARRANGEMENT FOR USE IN A CONTINUOUS ACTUATION REACTOR |
DE102018215576A1 (en) * | 2018-09-13 | 2020-03-19 | Bayerische Motoren Werke Aktiengesellschaft | Current-compensated choke, filter, high-voltage electrical system and motor vehicle |
-
2019
- 2019-10-10 DE DE102019215514.6A patent/DE102019215514A1/en active Pending
-
2020
- 2020-09-30 WO PCT/EP2020/077281 patent/WO2021069266A1/en unknown
- 2020-09-30 EP EP20785719.4A patent/EP4042458A1/en active Pending
- 2020-09-30 CN CN202080070880.3A patent/CN114450763A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2021069266A1 (en) | 2021-04-15 |
DE102019215514A1 (en) | 2021-04-15 |
CN114450763A (en) | 2022-05-06 |
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