EP2973624A1 - Ensemble bobine côté secondaire destiné au transfert d'énergie par induction et doté de quadrupôles - Google Patents

Ensemble bobine côté secondaire destiné au transfert d'énergie par induction et doté de quadrupôles

Info

Publication number
EP2973624A1
EP2973624A1 EP13802612.5A EP13802612A EP2973624A1 EP 2973624 A1 EP2973624 A1 EP 2973624A1 EP 13802612 A EP13802612 A EP 13802612A EP 2973624 A1 EP2973624 A1 EP 2973624A1
Authority
EP
European Patent Office
Prior art keywords
coil
coils
coil arrangement
side coil
ssi
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.)
Withdrawn
Application number
EP13802612.5A
Other languages
German (de)
English (en)
Inventor
Faical Turki
Jürgen MEINS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paul Vahle GmbH and Co KG
Original Assignee
Paul Vahle GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paul Vahle GmbH and Co KG filed Critical Paul Vahle GmbH and Co KG
Publication of EP2973624A1 publication Critical patent/EP2973624A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • H01F27/006—Details of transformers or inductances, in general with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H04B5/263—Multiple coils at either side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F2003/005—Magnetic cores for receiving several windings with perpendicular axes, e.g. for antennae or inductive power transfer

Definitions

  • the present invention relates to a secondary-side coil arrangement for an inductive power transmission system for transmitting energy between a primary and a secondary-side coil arrangement.
  • Secondary coil arrangements for inductive energy transmission systems are widely known. There are e.g. simple circular planar coils or two planar juxtaposed in a plane rectangular coils used for power transmission on the secondary side.
  • the object of the present invention is to provide a secondary-side coil arrangement which can cooperate with different primary-side coil arrangement with high efficiency.
  • a secondary-side coil arrangement comprising coils, which forms four coil areas arranged side by side in a plane, wherein each coil forms a resonant circuit together with at least one capacitor. Due to the advantageous provision of four coil regions arranged next to one another, it is possible that the secondary-side coil arrangement can interact with differently constructed primary coil arrangements. Thus, the secondary-side coil arrangement according to the invention can cooperate with a primary coil arrangement which has only one, two or four coil regions.
  • in-phase currents or currents with different phase angles can be induced. These currents can be converted via rectifier to a smoothed output voltage.
  • the four coil areas are adjacent to each other in the four quadrants of a coordinate system, which is spanned by the coils themselves.
  • the secondary-side coil arrangement for an inductive energy transmission system can have a rectangular, in particular square, round, in particular circular, or elliptical outer contour. Others, in particular shapes with more than four corners are also possible.
  • the secondary-side coil arrangement according to the invention can either be formed by planar coils on a flat ferrite arrangement or be a solenoid arrangement.
  • the coil regions are either formed by four separate circular windings or they are formed by a plurality of planar coils which overlap in regions, wherein advantageously each coil region comprises regions of two coils or is bordered.
  • the complete encompassing or bordering of a coil area is effected by both coils forming the respective coil area.
  • each coil advantageously covers two adjacent coil regions or two coil regions arranged diagonally to one another.
  • the four planar coils are formed rectangular, with two coils form a pair of coils, and the coil pairs are rotated by 90 ° to each other and arranged one above the other.
  • the coils forming the coil pairs can advantageously be formed in each case by a single winding, in particular with a center tap. This simplifies the construction of the coil arrangement.
  • the coils of a coil pair are advantageously connected in series, with a center tapped impedance with its first pole to the connection point of the two series-connected coils and its other pole to the center / center tap of a voltage divider, the positive or negative pole of the rectifier is electrically connected.
  • an additional impedance causes the inductance in the series resonant circuit of the series-connected primary and / or secondary-side coils to increase with an offset for optimal horizontal alignment, whereby the resonant frequency of the resonant circuit is adapted to the system frequency.
  • the windings forming the coils rest on the flat sides and on the narrow end faces of a ferrite plate.
  • the windings forming the coils can each have a center tap, so that the windings form coils connected in series.
  • the winding legs of the intersecting windings divide the ferrite plate into areas that form the coil areas.
  • Fig. 1 A coil arrangement according to the invention with four in one
  • Fig. 2 secondary coil assembly having four coil regions in cooperation with a primary circular coil assembly
  • Fig. 3 secondary coil assembly consisting of four planar
  • FIG. 4 and 5 show a secondary coil arrangement with four coil areas in interaction with a primary coil arrangement consisting of two rectangular coils;
  • Fig. 6 secondary coil assembly consisting of four semicircular and overlapping coils;
  • FIG. 7 secondary coil arrangement consisting of four triangular and overlapping coils
  • FIG. 8 shows a special form of a secondary coil arrangement consisting of two coils forming Eighth, which are arranged orthogonal to one another and form four coil areas;
  • FIG. 9 inductive energy transmission device with a primary-side and a secondary-side coil arrangement
  • Fig. 12 shows a possible embodiment of the secondary coil arrangement as a solenoid
  • FIG. 13 shows a primary coil arrangement according to FIG. 9 with a secondary solenoid coil arrangement
  • Fig. 14 Circuit for the primary side of an inductive power transmission system
  • Fig. 15 Circuit for the secondary side of an inductive power transmission system.
  • FIG. 1 shows a coil arrangement Ai according to the invention with four coil areas BE S i, BE S2 , BE S 3 and BE S4 lying in one plane.
  • the coil areas BEsi, BE S2 , BE S 3 and BE S4 are arranged in the quadrants I to IV for a better understanding of the invention.
  • the individual coil areas BE S i, BE S2 , BE S 3 and BE S4 have mutually different shapes and sizes.
  • the coil areas BE S i, BE S2 , BE S 3 and BE S4 are clamped by coils, which are not shown in Figure 1, since the coil shapes and number of coils can be configured differently.
  • the phase position of the currents is set in the individual coils surrounding the coil regions BE S , BE S2 , BE S 3 and BE S4 .
  • FIG. 2 shows a secondary coil arrangement Ai according to the invention with four coil areas BE S i, BE S2 , BE S 3 and BE S4 in conjunction with a primary coil arrangement A 2 with a circular coil SP P.
  • the coil arrangements Ai and A 2 preferably have the same outer contours. However, it is possible that the shape and size of the coil assemblies Ai and A 2 differ from each other. In the energy transfer from the primary-side coil arrangement A 2 to the secondary-side coil arrangement Ai, depending on the horizontal position of the coil arrangements Ai, A 2, currents with different phase positions in the individual coils SSi -4 are created .
  • FIG. 3 shows a secondary coil assembly Ai consisting of four rectangular coils SSi to SS. 4
  • the coils SSi and SS 2 form a first coil pair SP S i and the coils SS 3 and SS 4 form a second coil pair SP S2 .
  • the phase positions cpli of the current Ii -4 which sets itself in the coil SSi- 4 largely depend thereon on the structure of the primary-side coil arrangement A 2 .
  • FIG. 3 shows on the right a primary coil arrangement A2 with four coil regions BE P i -4 , wherein the magnetic flux densities Bi -4 in the individual coil regions BE P i -4 are 45 °, 135 °, 225 ° and 315 °.
  • FIGS. 4 and 5 show a secondary coil arrangement Ai which can be constructed identically to the coil arrangement Ai shown in FIG. 3 in interaction with a primary coil arrangement A 2 consisting of two rectangular coils SP 1 and SP 2 , which are operated in push-pull.
  • the coil portions BE S i -4 are formed such that two side- ⁇ arranged coil portions BE S i, BE S2, BE S 3, BE S4 each having a primary side coil SPi and SP 2 cooperate and on this during the energy Lecture are arranged.
  • the magnetic fluxes B, in the primary coils SPi and SP 2 penetrate the respectively assigned coil regions BE S i, BE S2 , BE S 3, BE S4 and cause the currents Ii -4 in the secondary-side coil SSi-4 with corresponding phase positions.
  • the coil areas BEsi and BE S4 correspond to the coil SPi and the coil areas BE S2 and BE S 3 to the coil SP 2 .
  • the phase positions of the magnetic flux densities B of the coil areas BE S i and BE S4 and the coil areas BE S2 and BE S 3 are shifted by 180 ° to each other, whereby corresponding phase positions cpIi-4 of the coil currents Ii -4 to each other in the coils SSi -4 to adjust.
  • the coil areas BEsi and BE S4 correspond to the coil SPi and the coil areas BE S2 and BE S3 to the coil SP 2 .
  • FIG. 6 shows a secondary coil arrangement Ai consisting of four overlapping coils SSi -4 . These form superimposed coil regions BEsi-4.
  • the only difference to the structure compared to the embodiment shown in Figure 3 is that the coils SSi -4 are not rectangular, but semi-circular.
  • FIG. 7 shows a secondary coil arrangement Ai consisting of four overlapping coils SSi -4 . These form superimposed coil regions BEsi-4.
  • the only difference to the structure compared to the embodiment shown in Figure 3 is that the coils SSi -4 are not rectangular, but triangular.
  • the coordinate system with its quadrants I to IV is tilted in contrast to the embodiments described above by 45 °, as shown in dashed lines on the right in FIG.
  • FIG 8 shows a special form of a secondary coil arrangement Ai consisting of two eight-shaped coils SSi and SS 2 , each of which has two rectangular coil regions BE S i, BE S2 and BE S 3, BE S4 form the orthogonal coils. are arranged one above the other and thus form four adjoining coil areas.
  • FIG. 9 shows an inductive energy transmission device with a primary-side and a secondary-side coil arrangement Ai, A 2 .
  • the planar windings form the coils of the coil assemblies Ai, A 2 together with the ferrite plates Fi, F 2 .
  • the primary-side coils SPi -4 are rectangular in shape and arranged according to the embodiment shown in Figure 3 and described to each other, so that together they form the coil areas BEpi, BE P2 , BE P3 and BE P4 .
  • the coil terminals ANi of the secondary-side coil assembly Ai are led out through a recess in the middle of the ferrite plate Fi.
  • FIGS. 10 and 11 show that the secondary-side coil arrangements Ai according to the invention can also be used with multiphase primary arrangements laid in tracks.
  • the individual coil regions BE S i -4 are in this case penetrated by the respective magnetic fluxes shown on the right with the phase positions 0 ° and 180 °.
  • FIG. 12 shows a possible embodiment of the secondary coil arrangement Ai as a solenoid.
  • the coil arrangement Ai has a ferrite plate FE, the narrow end faces F a . dl and a flat top F 0 and a flat bottom Fu has.
  • Windings Wi, W 2 are wound around the ferrite plate FE, which are arranged orthogonal to each other and intersect on the top F 0 in the center K of the ferrite plate FE.
  • the windings Wi, W 2 form the coils SSi, 2 .
  • the windings Wi and W 2 span with their legs WSu, WSi 2 , WS 2 i, WS 22 the coil areas BE S i, BE S2 , BE S3 and BE S4 .
  • FIG. 13 shows a primary coil arrangement of the secondary solenoid coil arrangement Ai shown in FIG.
  • the primary coil arrangement A 2 is formed according to the coil arrangement according to FIG.
  • FIG. 14 shows the structure of a primary-side circuit which is fed by two controlled bridge inverters 1.
  • the primary-side coils SPi and SP 2 are connected in series with resonant circuit capacitors C P i and C P2 and together with them form the resonant circuits RES P.
  • the switch Tl-4 the coil currents Ii and I 2 are set.
  • the coils SP 3 and SP 4 are connected in series with resonant circuit capacitors C P3 and C P4 and together with them form further resonant circuits RES P.
  • the switch Tl-4 the coil currents I 3 and I 4 are set.
  • a center impedance L PM is connected in each case with its one pole to the connection point V P and with its other pole to the center tap M TP of the capacitive voltage divider C G i_i, C G i_ 2 and serves to adapt the resonant frequencies when the total impedance of the primary side changes Oscillating circuits RES P.
  • the overall impedance can result, in particular, from horizontal offset between the primary and secondary coil arrangements Ai, A 2 .
  • FIG. 15 shows a circuit configuration for a secondary-side arrangement Ai.
  • the coils SSi and SS 2 are connected in series with resonant circuit capacitors C S i and C s2 and together with them form the resonant circuits RES S.
  • the two resonant circuits are connected in series with each other, wherein the series circuit of the resonant circuits is connected to the AC voltage terminal of the downstream first bridge rectifier 2.
  • the output-side smoothing capacitors C G i_i, C G i_ 2 form a capacitive voltage divider.
  • the coils SS 3 and SS 4 are connected in series with resonant circuit capacitors C s3 and C s4 and together with them form further resonant circuits RES S.
  • the two resonant circuits RES S are also connected to each other in series, wherein the series circuit of the resonant circuits is connected to the AC voltage terminal of the downstream second bridge rectifier 2.
  • the output-side smoothing capacitors C G i_i, C GL2 also form a capacitive voltage divider.
  • the additional impedances are connected with their first pole to the connection point of the coils SSi and SS 2 or SS 3 and SS 4 and with their other pole to the center tap of the capacitive voltage divider C G i_i, C GL2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

L'invention concerne un ensemble bobine côté secondaire pour un système de transfert d'énergie par induction permettant le transfert d'énergie entre un ensemble bobine côté primaire et un ensemble bobine côté secondaire (A1, A2), caractérisé en ce que l'ensemble bobine côté secondaire (A1) présente des bobines (SS1, SS2, SS3, SS4) qui forment quatre zones bobines (BES1, BES2, BES3, BES4) de l'ensemble bobine (A1) juxtaposées dans un plan, chaque bobine (SS1, SS2, SS3, SS4) formant conjointement avec au moins un condenseur (CS1-4) un circuit oscillant (RESS).
EP13802612.5A 2013-03-12 2013-12-06 Ensemble bobine côté secondaire destiné au transfert d'énergie par induction et doté de quadrupôles Withdrawn EP2973624A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013004181.3A DE102013004181A1 (de) 2013-03-12 2013-03-12 Sekundärseitige Spulenanordnung zur induktiven Energieübertragung mit Quadrupolen
PCT/EP2013/075841 WO2014139606A1 (fr) 2013-03-12 2013-12-06 Ensemble bobine côté secondaire destiné au transfert d'énergie par induction et doté de quadrupôles

Publications (1)

Publication Number Publication Date
EP2973624A1 true EP2973624A1 (fr) 2016-01-20

Family

ID=49753167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13802612.5A Withdrawn EP2973624A1 (fr) 2013-03-12 2013-12-06 Ensemble bobine côté secondaire destiné au transfert d'énergie par induction et doté de quadrupôles

Country Status (5)

Country Link
US (1) US20160035486A1 (fr)
EP (1) EP2973624A1 (fr)
CN (1) CN105122399A (fr)
DE (1) DE102013004181A1 (fr)
WO (1) WO2014139606A1 (fr)

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CN107112798A (zh) * 2015-01-21 2017-08-29 松下知识产权经营株式会社 受电装置以及具备该受电装置的非接触电力传输装置
GB2535464A (en) * 2015-02-16 2016-08-24 Bombardier Transp Gmbh Winding structure of a system for inductive power transfer, method of operating a winding structure and system of inductive power transfer
DE102015221582A1 (de) * 2015-11-04 2017-05-04 Robert Bosch Gmbh Verfahren zur induktiven Energieübertragung und Vorrichtung zum Betrieb einer induktiven Energieübertragungsvorrichtung
US10358045B2 (en) * 2016-05-11 2019-07-23 Witricity Corporation Methods and apparatus for wirelessly transferring power
DE102017202163A1 (de) 2017-02-10 2018-08-16 Robert Bosch Gmbh Akkuvorrichtung
DE102017111258A1 (de) * 2017-05-23 2018-11-29 Paul Vahle Gmbh & Co. Kg Einspeisemodul für eine induktive m-phasige Energieübertragungsstrecke
DE102019106719A1 (de) * 2019-03-15 2020-09-17 Balluff Gmbh Vorrichtung zur induktiven Übertragung von elektrischer Energie und/oder von Daten
GB201916410D0 (en) * 2019-11-11 2019-12-25 Metaboards Ltd Electrical resonators
EP3940920A1 (fr) * 2020-07-13 2022-01-19 Hilti Aktiengesellschaft Module de transfert d'énergie, unité d'émetteur, système de transfert d'énergie et procédé
US11831176B2 (en) 2021-11-03 2023-11-28 Nucurrent, Inc. Wireless power transfer systems with substantial uniformity over a large area
US11824371B2 (en) 2021-11-03 2023-11-21 Nucurrent, Inc. Wireless power transmission antenna with internal repeater and repeater filter
US11831177B2 (en) 2021-11-03 2023-11-28 Nucurrent, Inc. Wireless power transmitter with internal repeater and enhanced uniformity
US20230134561A1 (en) * 2021-11-03 2023-05-04 Nucurrent, Inc. Multi-Coil Polygonal Wireless Power Receiver Antenna
US20230134897A1 (en) * 2021-11-03 2023-05-04 Nucurrent, Inc. Wireless Power Receiver with Rectifier for Multi-Coil Receiver Antenna
US12027880B2 (en) 2021-11-03 2024-07-02 Nucurrent, Inc. Wireless power transfer from mouse pad to mouse
US11831175B2 (en) 2021-11-03 2023-11-28 Nucurrent, Inc. Wireless power transmission antenna with antenna molecules
US11824372B2 (en) * 2021-11-03 2023-11-21 Nucurrent, Inc. Wireless power transmission antenna with puzzled antenna molecules
US11862991B2 (en) 2021-11-03 2024-01-02 Nucurrent, Inc. Wireless power transmission antenna with internal repeater and in-coil tuning
US20230145030A1 (en) * 2021-11-03 2023-05-11 Nucurrent, Inc. Wireless Power Transmitter with Metal Mesh for Resiliency
US11824373B2 (en) * 2021-11-03 2023-11-21 Nucurrent, Inc. Wireless power transmission antenna with parallel coil molecule configuration
US11962337B2 (en) 2021-11-03 2024-04-16 Nucurrent, Inc. Communications demodulation in wireless power transmission system having an internal repeater
US11862984B2 (en) 2021-11-03 2024-01-02 Nucurrent, Inc. Wireless power receiver with repeater for enhanced power harvesting
US11848566B2 (en) 2021-11-03 2023-12-19 Nucurrent, Inc. Dual communications demodulation of a wireless power transmission system having an internal repeater
US11831173B2 (en) 2021-11-03 2023-11-28 Nucurrent, Inc. Wireless power transmission antenna with series coil molecule configuration

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Also Published As

Publication number Publication date
CN105122399A (zh) 2015-12-02
DE102013004181A1 (de) 2014-10-02
WO2014139606A1 (fr) 2014-09-18
US20160035486A1 (en) 2016-02-04

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