EP2805341A1 - Spulenanordnung für ein system zur induktiven energieübertragung - Google Patents
Spulenanordnung für ein system zur induktiven energieübertragungInfo
- Publication number
- EP2805341A1 EP2805341A1 EP13703990.5A EP13703990A EP2805341A1 EP 2805341 A1 EP2805341 A1 EP 2805341A1 EP 13703990 A EP13703990 A EP 13703990A EP 2805341 A1 EP2805341 A1 EP 2805341A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- stack
- coil arrangement
- arrangement according
- layers
- 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
- 230000001939 inductive effect Effects 0.000 title claims abstract description 10
- 230000005540 biological transmission Effects 0.000 title claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 64
- 239000010410 layer Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 21
- 229910000859 α-Fe Inorganic materials 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 13
- 230000005291 magnetic effect Effects 0.000 claims description 13
- 238000004382 potting Methods 0.000 claims description 13
- -1 polyethylene Polymers 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 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
- H01F38/14—Inductive couplings
Definitions
- the invention relates to a coil arrangement for a system for inductive
- the invention is therefore based on the object to develop a coil assembly for a system for inductive energy transfer, with improved efficiency in production and operation should be achievable.
- the object is in the specified in claim 1
- the coil arrangement comprises a winding and a stack, wherein the winding axis is aligned parallel to the stacking direction, in particular wherein the winding is a flat winding and / or concentric winding , in particular ring winding, is.
- the stack has a low specific weight.
- high-mass ferrite materials can be saved or at least reduced.
- a stack is more elastic or flexible than a one-piece constructed solid material.
- a high magnetization of the material can be achieved by the layer structure. Because the interaction of the flat layers with each other is reduced due to the spacing.
- the quasi-planar arrangement of the Optimizsche districts is advantageous because in a spatial arrangement of magnetic field lines around some of the districts around, as long as - no complete saturation is reached.
- the coil arrangement according to the invention is applicable to a system for inductive energy transmission.
- Advantage of the invention is therefore also that an improved efficiency in the production can be achieved by replacing the film stack according to the invention consuming to be manufactured ferrite parts.
- the stack is less brittle overall than the ferrite material and is even applicable to vibrating surfaces and / or operable on this.
- the winding is designed by means of conductor tracks of a multilayer printed circuit board.
- the advantage here is that a simple production, especially mass production, is possible.
- the winding is rectangular, square or circular.
- the advantage here is that the winding form is adaptable to the respective limiting parts.
- an optimal use of the winding form is adaptable to the respective limiting parts.
- the stack has layers of magnetizable material.
- the advantage here is that the layers are thin executable and thus the stack has a low mass. Material with a low specific weight can be used between the layers, in particular plastic, so that the stack can be flexibly adapted to a carrier part or to different other attachments in each case.
- the stack is even connectable to a time-varying surface, for example, a surface of a part which is subjected to bending vibrations.
- the stack is adhesively bondable to the part, in particular carrier part.
- Iron alloy is used, in particular which has a nanocrystalline structure, in particular wherein the relative magnetic permeability of the material exceeds the value of 30,000, in particular has a value between 50,000 and 200,000.
- the advantage here is that a high permeability is available at the same time low mass of the material.
- the saturation field strength of the material exceeds 1 T, ie a Tesla. Preferably, it even exceeds 1, 1 T. In this way, strong magnetic fields in the inductive transformer can be used.
- a film of polyethylene, polypropylene or polyimide is arranged between the layers in each case.
- magnetizable material especially ferromagnetic material
- the stack has adhesive layers, so that the film is in each case adhesively bonded to the layers, in particular adhesively bonded on both sides.
- each layer has a layer thickness measured in the stacking direction between 1 .mu.m and 150 .mu.m, in particular having a layer thickness between 15 .mu.m and 50 .mu.m.
- the advantage here is that essentially the Thermalschen districts are next to each other in a planar arrangement can be arranged. It is also advantageous that the entry and exit of the field lines can be perpendicular to the surface and
- Deviations from the ideal course can be prevented, ie volume effects can be reduced. Because in contrast to the invention, the field lines do not pass ideally straight through when using a ferrite high wall thickness. In the invention thin
- Layers and the high permeability occur the magnetic field lines substantially straight line parallel to the stacking direction through the layers.
- the saturation occurs well defined at high magnetic field strength.
- saturation occurs unpredictably in a massive solid.
- the magnetic field generated by the winding or penetrating the winding is at least partially conducted by a coil core arrangement comprising the stack, in particular as a yoke, and one or more ferrite parts, in particular as inner or outer legs of the coil core arrangement, in particular the or the ferrite parts touch the stack and / or with this adhesive bonded or potted with potting compound.
- a coil core arrangement comprising the stack, in particular as a yoke, and one or more ferrite parts, in particular as inner or outer legs of the coil core arrangement, in particular the or the ferrite parts touch the stack and / or with this adhesive bonded or potted with potting compound.
- the winding is encapsulated by potting compound, in particular wherein the stack is materially connected to the potting compound.
- the advantage here is that a mechanical stabilization can be achieved, at the same time an improved heat dissipation can be achieved by well-conductive potting compound is used.
- FIG. 1 shows a schematic structure of an exemplary embodiment according to the invention.
- a winding 2 designed as a flat winding is arranged on a stack 1, in particular a film stack.
- the stacking direction of the stack 1 is formed parallel to the winding axis of the winding 2.
- the stack has layers arranged one behind the other in the stacking direction.
- the layers of magnetizable material in particular ferromagnetic material, are used.
- Each layer has a stack thickness measured layer thickness between 1 ⁇ and 150 ⁇ , in particular between 15 ⁇ and 50 ⁇ .
- the material used is an amorphous iron alloy which is nanocrystalline.
- the relative magnetic permeability exceeds the value of 30,000 and is preferably between 50,000 and 200,000.
- a polyethylene film is arranged in front of and behind each of these layers. Between the respective layer and a respective polyethylene film, an adhesive layer is arranged in each case.
- the layers are each with each other
- the stack has an overall thickness measured in the stacking direction between 1 mm and 50 mm.
- the number of layers arranged in parallel depends on the thickness of the entire stack.
- the layer thicknesses of all layers are made
- the adhesive layers and foils are also designed with the same thickness in the stacking direction.
- the magnetic field generated by the winding 2 penetrates into the stack in the stacking direction and is conducted there along the layers until it leaves the stack opposite to the stacking direction outside the winding 2.
- the winding 2 does not have a coil core, the magnetic resistance is reduced at least in the region of the stack. Ferrite material is thus dispensable in this area.
- polyethylene polyimide or polypropylene can also be used in further exemplary embodiments according to the invention.
- a ferrite core is used in the middle of the winding and / or attached to the outside ferrite material. In this way, together with the stack an E-shaped coil core can be formed.
- the stack forms the yoke and the ferrite core and the further ferrite material each have a leg.
- the ferrite material surrounds the winding on its
- the stack also has a good shielding effect because of its high magnetic relative permeability. This means that substantially no magnetic field can be detected on the side of the stack facing away from the winding 2.
- the stack is arranged on a carrier part, in particular carrier plate, in particular adhesively bonded.
- This support member is preferably made of metal, so that a high strength and good thermal conductivity can be achieved and the stack is thus effectively Enticarmbar.
- the metal is particularly suitable aluminum or steel.
- the winding 2 is potted with potting compound, wherein the potting compound also binds the stack cohesively.
- films made of PET are used instead of the polyethylene films.
- the winding 2 can be used by way of example as a winding of an inductive transformer, in particular as a secondary winding.
- the primary conductor can be executed as an elongated conductor, wherein the secondary winding together with the carrier part is fastened to a device movable along the primary conductor, in particular a rail-guided vehicle.
- the primary conductor is designed as a ring winding or other flat winding.
- the winding 2 is inductively coupled as a secondary winding to the primary conductor.
- the primary conductor in execution as a ring winding or flat winding on the side facing away from the winding 2 and the stack 1 side also has a stack which is constructed in the same way as the winding 2 associated stack 1.
- rectangular flat winding instead of In Figure 1 rectangular flat winding also a circular flat winding or a differently shaped flat ring winding used.
- circuit board In a further embodiment of the invention, the circuit board
- the printed circuit board, the layers and / or the flat winding are each arranged planar and parallel to one another.
- a simple planar layer structure is possible.
- the layers are mounted on a curved, that is not flat, surface, wherein the layers of the curvature of the surface follow, in particular wherein the flat winding is a circular planar winding and is connected by means of adhesive and / or potting compound with the stack , in particular on the side facing away from the surface of the stack.
- the stack of layers is attachable to, for example, a curved plastic surface or aluminum surface. Because of the low weight of the stack is also an adhesive bond sufficiently powerful. It is even the winding on the other side of the stack adhesively bondable and is then carried by the stack.
- the arrangement is arranged hanging down on a floor surface of a vehicle.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012000906A DE102012000906A1 (de) | 2012-01-19 | 2012-01-19 | Spulenanordnung für ein System zur induktiven Energieübertragung |
PCT/EP2013/000048 WO2013107620A1 (de) | 2012-01-19 | 2013-01-10 | Spulenanordnung für ein system zur induktiven energieübertragung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2805341A1 true EP2805341A1 (de) | 2014-11-26 |
EP2805341B1 EP2805341B1 (de) | 2020-09-02 |
Family
ID=47714002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13703990.5A Active EP2805341B1 (de) | 2012-01-19 | 2013-01-10 | Spulenanordnung für ein system zur induktiven energieübertragung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2805341B1 (de) |
DE (1) | DE102012000906A1 (de) |
WO (1) | WO2013107620A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL120002A0 (en) * | 1997-01-13 | 1997-04-15 | Amt Ltd | Electrical coupler device |
US20040219328A1 (en) * | 2001-08-31 | 2004-11-04 | Kazunori Tasaki | Laminated soft magnetic member, soft magnetic sheet and production method for laminated soft magnetic member |
DE102007023343A1 (de) * | 2006-05-30 | 2007-12-06 | Sew-Eurodrive Gmbh & Co. Kg | Übertragerkopf und Anlage |
JP2009545876A (ja) * | 2006-08-04 | 2009-12-24 | エスケー ケミカルズ カンパニー リミテッド | 非接触式エネルギー充電及びデータ伝送用の誘導コイル |
JP2010041906A (ja) * | 2008-07-10 | 2010-02-18 | Nec Tokin Corp | 非接触電力伝送装置、軟磁性体シート及びそれを用いたモジュール |
JP5372610B2 (ja) * | 2009-06-08 | 2013-12-18 | Necトーキン株式会社 | 非接触電力伝送装置 |
WO2013095036A1 (ko) * | 2011-12-21 | 2013-06-27 | 주식회사 아모센스 | 무선 충전기용 자기장 차폐시트 및 그의 제조방법과 이를 이용한 무선충전기용 수신장치 |
DE102010050935B4 (de) * | 2010-03-25 | 2013-05-23 | Sew-Eurodrive Gmbh & Co. Kg | Vorrichtung zur berührungslosen Energieübertragung an ein Fahrzeug |
WO2012101729A1 (ja) * | 2011-01-26 | 2012-08-02 | パナソニック株式会社 | 非接触充電モジュール及び非接触充電機器 |
-
2012
- 2012-01-19 DE DE102012000906A patent/DE102012000906A1/de active Pending
-
2013
- 2013-01-10 EP EP13703990.5A patent/EP2805341B1/de active Active
- 2013-01-10 WO PCT/EP2013/000048 patent/WO2013107620A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2013107620A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2805341B1 (de) | 2020-09-02 |
DE102012000906A1 (de) | 2013-07-25 |
WO2013107620A1 (de) | 2013-07-25 |
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