EP2409306A1 - Drehübertrager und fremderregte synchronmaschine - Google Patents
Drehübertrager und fremderregte synchronmaschineInfo
- Publication number
- EP2409306A1 EP2409306A1 EP10708508A EP10708508A EP2409306A1 EP 2409306 A1 EP2409306 A1 EP 2409306A1 EP 10708508 A EP10708508 A EP 10708508A EP 10708508 A EP10708508 A EP 10708508A EP 2409306 A1 EP2409306 A1 EP 2409306A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary transformer
- winding
- ferrite core
- transformer according
- ferrite
- 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
- 230000001360 synchronised effect Effects 0.000 title claims description 11
- 238000004804 winding Methods 0.000 claims abstract description 61
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 46
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 244000099147 Ananas comosus Species 0.000 claims description 2
- 235000007119 Ananas comosus Nutrition 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/18—Rotary transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
Definitions
- the invention relates to a rotary transformer and a separately excited synchronous machine.
- Transformers usually have a primary winding and a secondary winding, wherein such shaped ferrite cores are provided, that the losses are reduced and thus a high efficiency in the transmission can be achieved.
- the invention is therefore based on the object to achieve a low-loss transmission in a rotary transformer.
- the object is achieved in the rotary transformer according to the features specified in claim 1 and in the externally-excited synchronous machine.
- the rotary transformer in particular a transformer rotary transformer, having a primary winding and a inductively coupled thereto, relative to the primary winding rotatably arranged secondary winding,
- windings extend over the same axial area or at least over a same axial partial area
- the primary winding is assigned a first and the secondary winding a second ferrite core
- first and second ferrite cores extend over at least a same axial portion and extend over at least a same radial portion.
- the advantage here is that an air gap can be realized, which extends at least partially in the axial direction and is thus limited by large surfaces on the ferrite cores.
- BESTATIGUNGSKOPIE In this way, a low magnetic resistance is achievable for the transformer. Therefore, since the magnetizing current component is low durable, therefore, the feeding power source or voltage source is relieved. Because the arrangement allows a higher magnetizing inductance at the same number of turns compared to the prior art. In addition, the sensitivity to air gap tolerances is reduced.
- the ferrite cores of the respective winding are attached to a respective associated holding part.
- the advantage here is that a simple and inexpensive mechanical attachment can be achieved, in particular by gluing or the like.
- the holding parts are made of aluminum.
- the advantage here is that losses can be reduced, in particular eddy current losses.
- the windings each have a capacitor connected in series and / or in parallel so that the associated resonant frequency substantially corresponds to the frequency of the current fed into the primary winding.
- the ferrite cores are each axially open.
- the advantage here is that the ferrite cores are not the same and thus at least partially axially inserted into one another can be arranged.
- the essential part of the magnetic flux penetrates from the first to the second ferrite core, the air gap between the first and second ferrite core in the radial direction.
- the advantage here is that a large surface of the ferrite cores is available to limit the air gap and thus a low magnetic resistance for the field flow can be achieved.
- each ferrite core has a shape such that it substantially corresponds to a solid cylinder having a central bore and into which a centrally arranged pineapple disc-shaped or toroidal recess is introduced, which has a smaller axial extent than the solid cylinder,
- the ferrite core is composed of ferrite plates such that this shape is at least approximately achieved.
- the two ferrite cores are axially inserted into one another or nested.
- the advantage here is that a compact arrangement can be achieved with a few types of bearing parts.
- the shaft protrudes through the central bore of the second ferrite core.
- the synchronous machine has a rotatably mounted rotor on which a field winding is arranged
- the rotary transformer is arranged in a different axial region than the excitation winding, in particular wherein the windings of the rotary transformer axially, in particular in Rotorachs therapies, are spaced from the field winding of the synchronous machine, wherein the field winding is disposed on the rotor.
- the advantage here is the compact execution possibility.
- a rotary transformer comprising two relatively rotatably arranged windings.
- the first winding is referred to as a stator winding and the second winding as a rotor winding for the sake of simplicity. Because the first
- Winding is fixed relative to the environment, ie stationary, providable and the second winding is rotatably storable, for example via ball bearings, on the shaft 4th
- a preferably made of aluminum holding part receives the ferrite core 2 of the stator winding of the stator winding or is connected to this, for example, materially bonded.
- the ferrite core 2 is shaped so as to receive and substantially enclose the stator winding 7, with an opening being provided in the axial direction.
- a space region is filled radially over the stator winding with the rotor winding 6, so that the rotor winding 6 and the stator winding 7 at least partially cover a common axial portion. So they are facing each other directly radially.
- the stator winding 7 is surrounded radially by the rotor winding 6.
- the ferrite core 3 of the rotor winding 6 is shaped so as to receive and substantially enclose the rotor winding 7, with an opening being provided in the axial direction.
- the ferrite cores 2 and 3 are arranged interleaved so that the legs shown in FIG. 1 run parallel in wide axial areas.
- the air gap between the ferrite cores 2 and 3 has an L-shaped course in FIG.
- the entire space region of the air gap is thus composed, as it were, of an axially oriented hollow cylinder and a radially oriented hollow cylinder, which adjoin one another.
- the ferrite cores 2 and 3 extend axially over at least a same portion. Likewise, both extend over at least a same radial portion. In this way, in both ferrite cores 2 and 3 each have a very large surface area the air gap between the two cores 2 and 3. Although the cores 2 and 3 have an opening only in the axial direction, the major part of the flow penetrates the air gap in the radial direction.
- holding parts 1 and 5 are made of aluminum, mechanical holding functions with low transmission losses can be achieved.
- the arrangement is operated such that the primary current, for example, the current fed into the stator winding has a frequency which is between 10 and 500 kHz, in particular between 15 and 30 kHz.
- windings 6 and 7 are also providable as part of a resonant circuit, so that the associated resonant frequency substantially the frequency of the fed
- Primary current corresponds. In this way, a high efficiency can be achieved.
- data can also be transmitted, for which purpose higher-frequency current components are additionally modulated and demodulated on the secondary side. This data transmission is also bidirectional executable.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009013530 | 2009-03-19 | ||
PCT/EP2010/001533 WO2010105764A1 (de) | 2009-03-19 | 2010-03-11 | Drehübertrager und fremderregte synchronmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2409306A1 true EP2409306A1 (de) | 2012-01-25 |
EP2409306B1 EP2409306B1 (de) | 2017-09-06 |
Family
ID=42237240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10708508.6A Active EP2409306B1 (de) | 2009-03-19 | 2010-03-11 | Drehübertrager und fremderregte synchronmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2409306B1 (de) |
WO (1) | WO2010105764A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011051777A1 (de) * | 2011-07-12 | 2013-01-17 | GTS Generator. Technik. Systeme GmbH & Co. KG | Hochkompakter Generator |
EP2688078A1 (de) * | 2012-07-17 | 2014-01-22 | Stichting Nationaal Lucht- en Ruimtevaart Laboratorium | Kontaktloser Strom- und Datentransfer |
CN102930966B (zh) * | 2012-09-21 | 2015-02-04 | 谭成忠 | 一种无刷线性旋转变压器 |
DE102012021600B4 (de) | 2012-11-06 | 2022-05-19 | Sew-Eurodrive Gmbh & Co Kg | Elektromotor |
US9525376B2 (en) * | 2014-05-13 | 2016-12-20 | Gbox, Llc | Wound field synchronous machine with resonant field exciter |
CN107768101B (zh) * | 2017-11-22 | 2019-04-26 | 深圳市汇城精密科技有限公司 | 复合变压器、变压器电路及负氧离子机 |
US10530185B2 (en) | 2018-02-15 | 2020-01-07 | Velodyne Lidar, Inc. | Systems and methods for transmitting data via a contactless cylindrical interface |
DE102021001937A1 (de) | 2020-05-05 | 2021-11-11 | Sew-Eurodrive Gmbh & Co Kg | Vorrichtung zur induktiven Übertragung von elektrischer Energie und mobiles Transportsystem |
DE102022128542A1 (de) * | 2022-10-27 | 2024-05-02 | Schaeffler Technologies AG & Co. KG | Übertrager für fremderregte Synchronmaschinen: Integration über Lager |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0926690A1 (de) * | 1997-07-03 | 1999-06-30 | The Furukawa Electric Co., Ltd. | Split-transformator und übertragungssteuerung mit dem split-transformator |
DE19935074A1 (de) * | 1998-07-30 | 2000-02-03 | Bosch Gmbh Robert | Elektrische Maschine, insbesondere Drehstromgenerator |
WO2007048920A1 (fr) * | 2005-10-27 | 2007-05-03 | Centre National D'etudes Spatiales | Transformateur tournant |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2234472A1 (de) * | 1972-07-13 | 1974-01-24 | Siemens Ag | Transformator mit relativ zueinander rotierenden koaxialen eisenkoerpern mit darin angeordneten ringspulen |
US5519275A (en) * | 1994-03-18 | 1996-05-21 | Coleman Powermate, Inc. | Electric machine with a transformer having a rotating component |
EP0680060A1 (de) * | 1994-04-26 | 1995-11-02 | Eaton Corporation | Drehtransformator |
DE29503608U1 (de) * | 1994-06-17 | 1995-09-14 | Schmall, Karl-Heinz, 76532 Baden-Baden | Elektromagnetischer Koppler |
DE102005047551A1 (de) * | 2005-09-30 | 2007-04-12 | Siemens Ag | Erregereinrichtung für eine elektrische Maschine |
DE102006056682B4 (de) * | 2006-01-13 | 2018-10-11 | Sew-Eurodrive Gmbh & Co Kg | System zur berührungslosen Energieübertragung |
-
2010
- 2010-03-11 WO PCT/EP2010/001533 patent/WO2010105764A1/de active Application Filing
- 2010-03-11 EP EP10708508.6A patent/EP2409306B1/de active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0926690A1 (de) * | 1997-07-03 | 1999-06-30 | The Furukawa Electric Co., Ltd. | Split-transformator und übertragungssteuerung mit dem split-transformator |
DE19935074A1 (de) * | 1998-07-30 | 2000-02-03 | Bosch Gmbh Robert | Elektrische Maschine, insbesondere Drehstromgenerator |
WO2007048920A1 (fr) * | 2005-10-27 | 2007-05-03 | Centre National D'etudes Spatiales | Transformateur tournant |
Non-Patent Citations (1)
Title |
---|
See also references of WO2010105764A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010105764A1 (de) | 2010-09-23 |
EP2409306B1 (de) | 2017-09-06 |
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