EP2450921B1 - Dispositif de chargement, station de réception et dispositif d'enfichage pour la transmission inductive d'énergie électrique - Google Patents

Dispositif de chargement, station de réception et dispositif d'enfichage pour la transmission inductive d'énergie électrique Download PDF

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Publication number
EP2450921B1
EP2450921B1 EP20100190214 EP10190214A EP2450921B1 EP 2450921 B1 EP2450921 B1 EP 2450921B1 EP 20100190214 EP20100190214 EP 20100190214 EP 10190214 A EP10190214 A EP 10190214A EP 2450921 B1 EP2450921 B1 EP 2450921B1
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EP
European Patent Office
Prior art keywords
coil
charger
longitudinal axis
accordance
receiving station
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.)
Active
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EP20100190214
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German (de)
English (en)
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EP2450921A1 (fr
Inventor
Michael Voth
Ralf Siegler
Dominik Huwig
Peter Wambsganß
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.)
Rafi GmbH and Co KG
RRC power solutions GmbH
Original Assignee
Rafi GmbH and Co KG
RRC power solutions GmbH
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Priority to EP20100190214 priority Critical patent/EP2450921B1/fr
Publication of EP2450921A1 publication Critical patent/EP2450921A1/fr
Application granted granted Critical
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    • 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 loading device according to the preamble of claim 1, to a receiving station according to the preamble of claim 7 and to a plug-in device according to the preamble of claim 12.
  • From the DE 19743860 C1 is to remove a device for the inductive transmission of electrical energy, which consists of a charging device and a receiving station in an electrically operated toothbrush.
  • the receiving station is electrically connected to a battery or a rechargeable battery, through which the motor of the toothbrush is supplied with power.
  • the receiving station is plugged into the charging device, so that the coils of the receiving station and the charging device are aligned with each other so that the magnetic field generated by the coil of the charging device affects the coil of the receiving station and thus inductively transmitted electrical energy.
  • the magnetic field radiates outward and is received by the coil of the receiving station, so that electrical energy is transmitted inductively from the coil of the charging device to the coil of the receiving station. This electrical energy is forwarded to the accumulators in the toothbrush and stored there.
  • From the US 6,268,785 B1 is to take a loading device whose outer contour is designed in the form of a truncated cone. On the loading device, a receiving station is pushed, the inner contour is adapted to the outer contour of the loading device.
  • the charging and receiving device are used for inductive transmission of electrical energy and data.
  • a coil forming a coil winding is wound onto the outer jacket of the charging device. Spaced to this first winding, a second coil is mounted, which is arranged in the region of the tip of the truncated cone.
  • two receiving coils are provided, which are aligned in the mounted state, ie in the plane formed by the two transmitting coils.
  • a charging device of the type mentioned which has at least one, preferably a plurality, levels in which coils for inductive transmission of electrical energy are arranged and which is designed as a coupling element at the same time.
  • a receiving station of the type mentioned which is fixedly or detachably attached to an electrically operated device and which is connectable to the charging device, so that one or more windings in the form of coils of the receiving station in alignment with the respective Coil of the charger in the state of charge run and thus form coil pairs.
  • the core of the charging device is formed of at least two stages, is first advantageously achieved by the larger training of the first stage at which no coil is provided that the magnetic field, which is associated with the second adjacent thereto stage of the coil , is screened, because the first stage is based on the longitudinal axis of the core sized larger than the second stage and on the other hand, such a configured charging device can be used as a coupling element, because this is freely accessible from above and the outer contour of the charging device is suitable as a plug connection.
  • the efficiency for inductive energy transmission is thus optimized because the magnetic field is deflected defined in a predetermined manner. Scattering losses are therefore minimized. Consequently, a further receiving coil, which is arranged in the magnetic field of the coil of the charging device, inductively absorb electrical energy and forward it to an accumulator.
  • the loading device is formed from at least two stages, where at least one coil is mounted and when each of the steps has a cross-sectionally L-shaped outer contour, which faces the coil, because this can on the one hand, the coils form a common or a separate magnetic field and on the other hand, the magnetic fields are three-dimensionally deflected structured in a predetermined manner by the L-shaped outer contour, so that in this way the efficiency for inductive energy transfer is high and leakage losses are minimized.
  • the coils of the charging device extend in different planes, which are arranged perpendicular to the longitudinal axis of the core of the charging device, and the receiving station has corresponding coil arrangements, differently configured receiving stations can be plugged onto the charging device, depending on the energy requirement that is required is to charge an electrical device associated with the receiving station. Namely, if the electrical appliance has an increased energy requirement, then several pairs of coils of the charging device and the receiving station are necessary and if the energy consumption of the charging electrical device should be lower, only a pair of coils of the charging device and the receiving station can be coupled in alignment with each other inductive energy transfer to accomplish, the remaining coils of the charger are then energized, so do not consume energy and radiate no magnetic field.
  • the outer contour of the core of the loading device and the recesses of the carrier element of the receiving station each have contours that are adapted to each other and the respective contours are designed rotationally symmetric or polygonal, the charging devices and the receiving stations in any position with respect to the circumferential direction coupled to each other , thus eliminating advantageously the need to produce a mutually aligned exactly aligned connector; Rather, it is ensured by the outer contour of the charging device, that the receiving station can be placed reliably on this without tilting these when pushed.
  • the charging device and the receiving station form a common plug-in device, which is sealed watertight, so that the electrical components are protected from penetrating water and can therefore be operated outdoors.
  • the housing covering the coils and the core of the charging device, as well as the housing which closes the coils and the carrier element of the receiving station to the outside, is made of an insulating material, the magnetic field of the coils of the charging device is not in its deflection and its Field strength not hindered or reduced.
  • the charging device has a plurality of steps, which have different outer diameters or height dimensions, it is possible to place these on differently configured receiving stations, which are fastened, for example, firmly to an apparatus to be electrically charged.
  • FIGS. 1 a and 1 b a charging device 1 and receiving station 11 are shown, which can be interconnected for inductive energy transfer.
  • the charging device 1 consists of a core 2, which is made of iron, so a magnetically conductive material.
  • the outer contour 4 of the core 2 is designed stepped or stepped in relation to the longitudinal axis 3 of the core 2.
  • the first stage of the core 2 is provided with the reference numeral 5 and has the largest distance of each further stage 5 '... 5 n to the longitudinal axis 3.
  • a ring segment 33 made of copper for shielding the magnetic field 32 is attached.
  • a second stage 5 ' Adjacent to the first stage 5, a second stage 5 'is provided, whose outer contour 4 is L-shaped.
  • the second stage 5 ' is associated with a wire 6 in the form of a coil formed as a coil 7.
  • the coil 7 is located on both legs the L-shaped stage 5 'and is connected via electrical lines 27 to a power source 10, through which the coil 7 is operated with alternating current in the state of charge, so that it flows through the coil 7.
  • the coil 7 forms the magnetic field 32, which is explained in detail below.
  • a third step 5 " Adjacent to the second step 5 ', a third step 5 "is provided, the outer contour 4 of which is dimensioned smaller than the distance of the second step 5' relative to the longitudinal axis 3.
  • the third step 5" also has an L-shaped outer contour 4 this is another coil 7 is arranged, which is connected via the electrical line 27 to the power source 10.
  • the coils 7 of the charging device 1 can be separated from each other or coupled to each other, so that a single or more of the coils 7 can be supplied by the power source 10 with electrical energy, thereby generating a smaller or larger magnetic field 32.
  • the control electronics 35 is namely detectable how many coils 16 of the receiving station 11 are present at all, so that the formation of the magnetic field 32 by the coil 7 to the number of receiving coils 16 is adjustable.
  • the core 2 and the two coils 7 of the charging device 1 are covered by a housing 31 to the outside, which is made of an insulating material, preferably made of plastic, and thin-walled, so that the magnetic field generated by the coils 32 32 through the housing 31 without Distraction and field strength loss radiates. However, the electrically conductive coils 7 are thereby isolated.
  • a shoulder 25 serving as a contact surface is worked in between the two steps 5 'and 5 ", the shoulder 25 being inclined at an angle of 45 ° from inside to outside and from top to bottom relative to the longitudinal axis 3 of the core 2.
  • the receiving station 11 is coupled via the electrical lines 27 with an accumulator 12, is supplied by an unillustrated electric drive motor of a bicycle in the decoupled state between the charging device 1 and the receiving station 11 with electrical energy.
  • the receiving station 11 consists of a support member 13 which is made of iron, that is, a magnetically conductive material.
  • Two recesses 17 'and 17 "of different size are incorporated into the carrier element 13.
  • the distance between the first recess 17' and the longitudinal axis 14 of the carrier element 13 is greater than the distance between the second recess 17".
  • the distance between the first and second recesses 17 'and 17 correlates to the distance that the second and third stages 5' and 5" of the loading device 1 have with respect to the longitudinal axis 3 of the core 2.
  • the recesses 17 'and 17 are designed as L-shaped inner wall 18 and the contour of the steps 5' and 5" modeled.
  • the first stage 5 serves as a shielding attachment 8, through which the forming magnetic field 32 is deflected in a structured manner.
  • Each of the first and second recesses 17 'and 17 " is associated with a coil 16 made of a wire coil 15.
  • the coils 16 are connected to the accumulator 12 through the electrical lead 27.
  • the support member 13 and the coils 16 of the receiving station 11 are insulated by a housing 34 to the outside, which is made of a thin-walled plastic material and thus has an insulating effect.
  • the magnetic field 32 penetrates the housing 34 without being deflected.
  • a through hole 19 is incorporated, whose axis of symmetry is aligned with the longitudinal axis 14 and run through the electrical supply line.
  • FIG. 1b the connection state between the charging device 1 and the receiving station 11 is shown. Due to the applied alternating voltage, the two coils 7 of the charging device 1 form the magnetic field 32, which is initially deflected in a structured manner by the first step 5 in the region of the shielding projection 8. In addition, the ring segment 33 shields the magnetic field 32, so that almost no scattering losses occur.
  • the coil 7 of the first stage 5 'and the coil 16 of the first recess 17' are paired inductively interconnected in pairs and therefore run in a common plane 1.
  • the coil 7 of the second stage 5 "and the coil 16 of the second recess 17" are in a further plane 11 which is parallel and spaced from the plane I runs.
  • FIG. 2 Although the charging device 1 structurally identical designed, as in the FIGS. 1a and 1b However, the receiving station 11 is provided with only the recess 17 "in which the coil 16 is arranged, which is positioned in alignment with the coil 7 of the third stage 5" of the charging device 1.
  • the coil 7, which is assigned to the second stage 5 ', has no coil partner, so that only electrical energy is transmitted inductively via the coil 7 of the second stage 5 " FIG. 1b reduced; the shutdown of the unneeded coils 7 by means of the control electronics 35th
  • each stage 5 ... 5 n Due to the L-shaped and staircase-shaped configuration of each stage 5 ... 5 n is ensured that, for example, a shielding of the magnetic field 32 is effected by these stages 5, 5 ', if only in the area of the third stage 5 "takes place an inductive energy transfer.
  • the charging device 1 and the receiving station 11 are extended by a further pair of coils 7 and 16.
  • a fourth stage 5 ' namely, a third coil 7 is arranged and the receiving station 11 also has a third coil 16, which is in the region of a third recess 17"' attached.
  • the step-shaped configuration of the charging device 1 and the receiving station 11 can be expanded as desired, so that the number of coil pairs required is to be provided depending on the amount of energy to be transmitted.
  • the self-adjusting magnetic field 32 also required to attach to the outside of the support member 13, the ring segment 33, in the transition region between the support member 13 and the housing 34, ie immediately adjacent to the core 2 of the charging device 1.
  • the plug-in device formed by the charging device 1 and the receiving station 11 is identified by the reference numeral 21.
  • the charging device 1 may be associated with a charging station fixedly attached to, for example, a building facade, whereas the receiving station may be mounted on a mobile vehicle such as an electric bicycle or an electric scooter, so that it is not necessarily necessary for the charging device 1 and the receiving station 11 are mounted on a common component.
  • the plug-in device 21 is created by the joining of the receiving station 11 to the loading device 1.
  • a latching clip or a latching hook is provided, which is mounted hinged to the receiving station 11 and which is einklippsbar on the core 2 or on the housing 31 of the charging device 1. Consequently, the receiving station 11 is then fixed to the charging device 1.

Claims (14)

  1. Chargeur (1) pour la transmission inductive de l'énergie électrique, se laissant raccorder à une source de courant (10), comprenant un noyau (2) consistant d'un matériau conducteur de magnétisme, formé en symétrie de révolution autour d'un axe longitudinal (3) ou dont le contour extérieur (4) dispose, par rapport à l'axe longitudinal (3), d'un écartement constant ou ascendant référé à un plan (22, 23, 24) perpendiculaire à l'axe longitudinal (3), avec un fil électriquement conducteur (6) enroulé sur le noyau (2) et formant une bobine (7) à travers laquelle circule du courant et qui forme un champ magnétique (32) au moment du chargement, et comprenant un boîtier (31) en matériau électriquement isolant qui recouvre le noyau (2) et la bobine (7) vers l'extérieur,
    caractérisé en ce que
    le noyau (2) est formé d'au moins deux étages (5', 5" ...5n), que le contour extérieur du premier étage (5') est plus éloigné de l'axe longitudinal (3) du noyau (2) que le contour extérieur du deuxième étage (5") et que la bobine (7) est assignée au deuxième étage (5").
  2. Dispositif d'après la revendication 1,
    caractérisé en ce que
    sur le noyau (2), il est formé au moins un troisième étage (5") et qu'il est assigné au troisième étage ou à tous les étages supplémentaires (5"', ... 5n) une bobine (7), que celles-ci sont séparées électriquement ou se laissent interconnecter, et que le boîtier (31) assure le revêtement du premier étage et de tous les étages supplémentaires (5', ... 5n) ainsi que des bobines (7).
  3. Dispositif d'après la revendication 2,
    caractérisé en ce que
    les sections transversales des étages voisins l'un de l'autre (5', ... 5n) ont la forme d'un escalier.
  4. Chargeur d'après une des revendications précédentes,
    caractérisé en ce que
    la section transversale de chacun des étages (5', ... 5n) du noyau (2) a un contour extérieur sous la forme d'un L et que chacune des bobines (7) porte sur le contour extérieur sous la forme d'un L de l'étage respectif (5', ... 5n).
  5. Chargeur d'après une des revendications précédentes,
    caractérisé en ce que
    le contour extérieur de l'étage (5) le plus éloigné de l'axe longitudinal (3) porte un segment annulaire en cuivre (33) et que le champ magnétique (32) créé par chacune des bobines (7) est dévié par le segment annulaire (33) de sorte que le champ magnétique (32) soit orienté sous une certaine structure tridimensionnelle définie par rapport au chargeur (1).
  6. Chargeur d'après une des revendications précédentes,
    caractérisé en ce que
    le chargeur (1) est conçu en tant qu'élément de couplage et que sur cet élément de couplage, il peut être monté une station réceptrice (11) adaptée entièrement ou partiellement au contour extérieur du chargeur (1).
  7. Station réceptrice (11) se laissant raccorder électriquement à au moins un accumulateur (12), comprenant un élément support (13) réalisé en matériau conducteur de magnétisme et comprenant un évidement (17), un enroulement de fils (15) formant une bobine (16) réalisé en matériau électriquement conducteur et se prêtant à la transmission inductive de l'énergie électrique, et qui est arrangée sur la paroi intérieure (18) de l'évidement (17) parallèle à l'axe longitudinal (14) de l'élément support (13),
    caractérisée en ce que
    la section transversale de la paroi intérieure (18) de l'évidement (17) donnant sur la bobine (16) est conçue sous la forme d'un L et que la station réceptrice sert d'élément de couplage.
  8. Station réceptrice d'après la revendication 7,
    caractérisée en ce que
    la paroi intérieure (18) de l'évidement (17) et la face extérieure de l'élément support (13) sont recouvertes par un boîtier (34) en matériau électriquement isolant.
  9. Station réceptrice d'après les revendications 7 ou 8,
    caractérisée en ce que
    l'élément support (13) comporte au moins deux évidements (17'...17n) de tailles différentes, dirigés dans respectivement deux plans entr'eux parallèles (22, 23, 24) et perpendiculaires à l'axe longitudinal (14) de l'élément support (13) et que, par rapport à l'axe longitudinal (14) de l'élément support (13), l'écartement de la paroi intérieure (18) des évidements (17'...17n) devient plus grand de l'intérieur vers l'extérieur.
  10. Station réceptrice d'après la revendication 9,
    caractérisée en ce que
    par rapport à l'axe longitudinal (14) de l'élément support (13), les évidements (17'...17n) sont conçus en symétrie de révolution ou polygonaux.
  11. Station réceptrice d'après les revendications 9 ou 10,
    caractérisée en ce que,
    à chacun des évidements (17'...17n), il est assigné une bobine (16) et que celles-ci sont séparées électriquement ou se laissent interconnecter.
  12. Dispositif à insertion (21) pour la transmission inductive de l'énergie électrique,
    caractérisé en ce
    qu'il est prévu un premier noyau (2) servant d'élément de couplage et réalisé en matériau conducteur de magnétisme, qui se laisse utiliser en tant que chargeur (1), que par rapport à son axe longitudinal (3), le conteur extérieur (4) du noyau (2) est conçu sous la forme d'un escalier, qu'au moins deux des étages (5'...5n) du chargeur sous forme d'escalier (1) comportent une bobine (7), qu'ïl est prévu en tant que deuxième élément de couplage une station réceptrice (11) pour le couplage au premier élément de couplage (1), dont l'élément support (13) comporte au moins un évidement (17'...17n) l'écartement duquel augmente par étages de l'intérieur vers l'extérieur par rapport à l'axe longitudinal (14) de l'élément support (13), de sorte que le contour intérieur de la station réceptrice (11) est adapté entièrement ou partiellement au contour extérieur du chargeur (1), qu'à chaque évidement (17'...17n), il est assigné une bobine (16), et qu'en état assemblé, les bobines (7, 16) du premier et du deuxième élément de couplage (1, 11) sont raccordées par paires en alignement précis de sorte que les paires de bobines (7, 16) sont assignées à un champ magnétique commun ou individuel (32) pour la transmission inductive de l'énergie.
  13. Dispositif à insertion d'après la revendication 12,
    caractérisé en ce
    qu'entre deux paires de bobines (7, 16), il est prévu sur le noyau (2) et sur l'élément support (13) une face de portée oblique (25) dont la forme est adaptée l'une à l'autre de sorte que, référé à l'axe longitudinal (3) du noyau (2) et de l'élément support (13), il est formé une épaule descendant de préférence sous un angle de 45° vers l'extérieur.
  14. Dispositif à insertion d'après les revendications 12 ou 13,
    caractérisé en ce
    qu'en tant que premier élément de couplage, il est prévu un chargeur (1) d'après une des revendications 1 à 7, et en tant que deuxième élément de couplage, une station réceptrice (11) d'après une des revendications 8 à 12.
EP20100190214 2010-11-05 2010-11-05 Dispositif de chargement, station de réception et dispositif d'enfichage pour la transmission inductive d'énergie électrique Active EP2450921B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20100190214 EP2450921B1 (fr) 2010-11-05 2010-11-05 Dispositif de chargement, station de réception et dispositif d'enfichage pour la transmission inductive d'énergie électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20100190214 EP2450921B1 (fr) 2010-11-05 2010-11-05 Dispositif de chargement, station de réception et dispositif d'enfichage pour la transmission inductive d'énergie électrique

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EP2450921B1 true EP2450921B1 (fr) 2012-09-26

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US9600434B1 (en) 2011-12-30 2017-03-21 Bedrock Automation Platforms, Inc. Switch fabric having a serial communications interface and a parallel communications interface
US10834820B2 (en) 2013-08-06 2020-11-10 Bedrock Automation Platforms Inc. Industrial control system cable
US8868813B2 (en) 2011-12-30 2014-10-21 Bedrock Automation Platforms Inc. Communications control system with a serial communications interface and a parallel communications interface
US8971072B2 (en) 2011-12-30 2015-03-03 Bedrock Automation Platforms Inc. Electromagnetic connector for an industrial control system
US11144630B2 (en) 2011-12-30 2021-10-12 Bedrock Automation Platforms Inc. Image capture devices for a secure industrial control system
US11314854B2 (en) 2011-12-30 2022-04-26 Bedrock Automation Platforms Inc. Image capture devices for a secure industrial control system
US8862802B2 (en) 2011-12-30 2014-10-14 Bedrock Automation Platforms Inc. Switch fabric having a serial communications interface and a parallel communications interface
US9437967B2 (en) 2011-12-30 2016-09-06 Bedrock Automation Platforms, Inc. Electromagnetic connector for an industrial control system
US9191203B2 (en) 2013-08-06 2015-11-17 Bedrock Automation Platforms Inc. Secure industrial control system
US10834094B2 (en) 2013-08-06 2020-11-10 Bedrock Automation Platforms Inc. Operator action authentication in an industrial control system
US11967839B2 (en) 2011-12-30 2024-04-23 Analog Devices, Inc. Electromagnetic connector for an industrial control system
US9419373B2 (en) * 2012-12-14 2016-08-16 Blue Logic As Device for inductive transmission of electrical energy
US10613567B2 (en) 2013-08-06 2020-04-07 Bedrock Automation Platforms Inc. Secure power supply for an industrial control system
JP6584758B2 (ja) * 2013-08-06 2019-10-02 ベドロック・オートメーション・プラットフォームズ・インコーポレーテッド 電磁コネクター
DE102014216783B4 (de) * 2014-08-22 2017-02-16 Leoni Kabel Holding Gmbh Steckverbindung und Steckverbinder für eine solche
US9984815B2 (en) * 2014-12-22 2018-05-29 Eaton Capital Unlimited Company Wireless power transfer apparatus and power supplies including overlapping magnetic cores
US10116144B2 (en) 2015-05-22 2018-10-30 Eaton Intelligent Power Limited Wireless power transfer apparatus using enclosures with enhanced magnetic features and methods of fabricating the same
US20170179728A1 (en) * 2015-12-16 2017-06-22 Keqin Jiang Electromagnetic induction apparatus for power transfer
US10086713B2 (en) 2016-06-23 2018-10-02 Qualcomm Incorporated Wireless power transfer for integrated cycle drive systems
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