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WO2009097958A1 - Interface de charge sans fil pour un accumulateur d'énergie - Google Patents

Interface de charge sans fil pour un accumulateur d'énergie Download PDF

Info

Publication number
WO2009097958A1
WO2009097958A1 PCT/EP2009/000269 EP2009000269W WO2009097958A1 WO 2009097958 A1 WO2009097958 A1 WO 2009097958A1 EP 2009000269 W EP2009000269 W EP 2009000269W WO 2009097958 A1 WO2009097958 A1 WO 2009097958A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
film
wireless charging
energy storage
receiver circuit
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.)
Ceased
Application number
PCT/EP2009/000269
Other languages
German (de)
English (en)
Inventor
Peter Spies
Franz Xaver Arbinger
Michael Kirchner
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.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Publication of WO2009097958A1 publication Critical patent/WO2009097958A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/248—Supports; Mounting means by structural association with other equipment or articles with receiving set provided with an AC/DC converting device, e.g. rectennas
    • 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
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • 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
    • 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
    • H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • H02J50/27—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction

Definitions

  • the present invention relates to the power supply of mobile electrical appliances and more particularly to the wireless charging of energy storage devices.
  • Energy storage of mobile devices are powered by chargers in certain time intervals with energy.
  • electronic devices with accumulators are, for example, mobile phones, laptop computers, PDAs (personal digital assistants), digital cameras, shavers, toothbrushes, etc.
  • All such mobile electronic or electrical devices contain energy storage for energy, which is replaced at regular intervals.
  • the energy storage is referred to as a primary battery.
  • primary batteries and secondary batteries can be used, such secondary batteries must be recharged. They are also referred to as accumulators.
  • the device For charging batteries, the device is typically connected via a cable to a charger, which in turn hangs from the mains power supply.
  • Each device requires its own special charging cable and its special charger, because the plug or the socket on the mobile device and the charging power from mobile device to mobile device are very different. Therefore, it has become natural for each device to have its own charger and its own charging cable, which you have to carry and keep ready for charging the mobile device.
  • inductive charging methods are known in the art, in which an inductive energy transmission according to the transformer principle is used.
  • a charging or transmitting device by means of resonant circuit and antenna (primary coil) generates an alternating electromagnetic field.
  • the terminal to be supplied is equipped with a receiver consisting of antenna (secondary coil) and other electronic circuits.
  • a voltage is induced in the antenna of the terminal, with which then after appropriate adjustment, the battery can be charged or the device can be powered.
  • inductive charging systems are used for example for electric toothbrushes.
  • An electric toothbrush has a special holder in the lower area, eg. B. in the form of a bore, with which the toothbrush is placed on a mandrel.
  • the antennas of the charging station and of the mobile device are arranged in order to provide a support to reach fertilizer.
  • Characteristic of inductive charging systems is that the distance between energy transmitter and energy receiver must be small, so that there is an appreciable energy transfer sufficient for charging purposes.
  • Inductive chargers are therefore even less compatible with wired chargers, such as chargers for mobile phones, since the charging station typically has only a special shaping for receiving the mobile device and typically performs even other functions, such as that the toothbrush in a certain position on a Sink stands.
  • the object of the present invention is to provide a user-friendly concept for powering mobile devices.
  • a wireless charging interface according to claim 1 an energy storage device according to claim 12, a mobile device according to claim 18, a method for manufacturing a wireless charging interface according to claim 19 and a method for manufacturing a wirelessly chargeable mobile device or an energy storage device.
  • Memory for the mobile device according to claim 21 solved.
  • the present invention is based on the finding that the incompatibility problems among various mobile devices, which are all to be charged, is solved by providing a wireless charging interface which has an antenna mounted on or in a foil and, moreover, a receiver circuit and a Includes connecting element. Due to the design of the wireless charging interface and in particular the antenna of the wireless charging interface in the form of a mounted on or in a foil antenna, the wireless Lade- cut parts can be easily glued to any flat housing sites. This makes it possible to supply any mobile devices that are supplied with correspondingly adapted wireless charging interfaces with one and the same transmitter charger.
  • the wireless charging technology is also particularly well suited for a theft-proof and destructive installation, for example, within a table top.
  • a charging station antenna can be readily integrated in a typically electrically insulating tabletop, such as a wood or plastic tabletop, in which case the user simply has to place all of his mobile devices on that tabletop in proximity to the antenna and move around nothing to worry about anymore. After a certain time, all devices are charged, without the need for a single cable to be carried by the user.
  • Fig. 1 is a block diagram of an inductive charging system
  • FIG. 2 shows a schematic illustration of a wireless charging interface with film antenna
  • FIG. 3 shows a schematic illustration of a mobile device with energy storage compartment and glued-on interface
  • Fig. 4 is a schematic view of an energy storage with glued wireless charging interface and the receiver circuit and the connection element on the energy storage board.
  • Fig. 1 shows an overview of a system with a wireless charging interface.
  • a charging station 5 communicates decorates wirelessly with a wireless charging interface 10, which in turn is coupled to a battery, in particular an energy store 20.
  • the wireless charging interface for the energy storage device 20, which is provided, for example, for a mobile device in the form of a mobile telephone, comprises an antenna 11 which is mounted on or in a film, which is not shown in FIG.
  • a receiver circuit 12 connected to the antenna is provided, which is designed to generate a charging current I for the energy store 20 from a radiation 6 detected by the antenna 11.
  • the receiver circuit comprises a rectifier circuit 12a, a downstream limiter 12b, and a turn-down UIT controller, which may have typical charge controller functions.
  • the UIT control is responsible for providing a correct charge current I provided for the energy store 20 and a correct charge voltage U provided for the energy store 20.
  • the charging current I or the charging voltage U are applied to a connecting element 13, which is shown schematically in FIG. 1 as output terminals, and which serves for coupling the charging current output of the receiver circuit with the energy storage.
  • Fig. 2 shows a more detailed illustration of the wireless charging interface.
  • the wireless charging interface is applied to a film substrate 14, which is a flexible substrate that is electrically insulating and preferably made of plastic.
  • the antenna 11 is in the form of a flattened multi-turn antenna, with the number of turns and the antenna area enclosed by the turns determining the power take-up efficiency.
  • the receiver is also mounted on the flexible substrate 14.
  • the receiver is preferably implemented as a thinned chip which has a chip height which is less than ten times the height of the substrate and preferably even less than twice the height the substrate or the flexible film is. Downstream of the receiver is the connecting element, which is also shown schematically in Fig. 2.
  • connection element comprises a cable fixedly connected to the receiver chip or the flexible foil and terminating in a socket or plug directly provided for the mobile device for which the wireless charging interface is intended.
  • a plug could be, for example, an elongated cylinder plug or even a USB plug of the most varied type, which the user connects to the plug or the socket of the mobile device either before or after gluing the wireless charging interface. Then, when data is to be transferred via the USB port, such as a digital camera, it is easy to remove the plug of the mobile charger, sticking the wireless charging interface, and then, when data transmission is complete, disconnecting the data cable from the USB port is removed, the plug of the wireless charging interface can be plugged back into the USB port of the digital camera.
  • the inventive concept thus represents a simple additional or exchange system, with which an inductive charging of the battery of the mobile device or terminal is made possible. There are no conversion measures possible that would require a specialist. Furthermore, any terminal equipment can be quickly equipped with a receiver for inductive energy transfer, and this conversion is just as quickly undone if the desire exists.
  • Exemplary rechargeable energy storage are accumulators of different technology or so-called super-caps, ie capacitors that can give off a high current for a short time and z. B. alone or in conjunction with batteries.
  • the wireless charging interface 10 is preferably adhered to the outside on a mobile terminal 30 or on the housing of the mobile terminal.
  • the mobile terminal 30 comprises in the embodiment shown in Fig. 3 nor an energy storage compartment 31, which is drawn in the open state, and which is further drawn such that no energy storage is used.
  • the mobile device 30 has a terminal 32 into which a charging cable or a plug of a charging cable can be inserted.
  • the terminal 32 is connected within the mobile device via connecting lines, not shown, with connection contacts 33 for an energy store, wherein the energy store is not shown in Fig. 3.
  • the necessary for the inductive power supply receiver, so the wireless charging interface 10 is constructed on a flexible board including antenna. Thus, it is possible to apply the receiver 10 as a sticker on the outside of the terminal 30.
  • the necessary connection to the battery is made by means of preferably a short cable 34 as an implementation of the connection element 13.
  • the cable is a ribbon cable.
  • the wireless charging interface and in particular the receiver circuit 12 is designed for the energy store to be charged in order to provide the charging current required for the energy store or the charging voltage necessary for the energy store.
  • the transmitter or charging station 5 of FIG. 1 can be designed so that it can supply different receivers with different charging powers. Thus, at the same time, various devices, all of which are provided with a dedicated wireless charging interface, can be loaded with a transmitter.
  • the energy store 20 in FIG. 4 comprises a housing in which a charge storage zone 21 is located, which is shown schematically in dashed lines in FIG. 4.
  • a circuit board 40 On this board a typical protection electronics, not shown in Fig. 4 is included, which has a battery normally.
  • the electronics of a battery differs depending on the type of battery principle in the charge storage zone 21, wherein any battery principles in the battery charge storage zone 21 may be implemented.
  • the one or more receiver chips 12 of the wireless charging interface 10 are also arranged on this board 40.
  • the connection element which connects the receiver chip to the charge connection of the charge storage zone is shown in FIG. 4 as a connection line 13.
  • connecting lines 41 are drawn, which connect the antenna 11 of the wireless charging interface with the receiver chip 12.
  • the antenna 11 is formed on a film 14 which is glued to an outside of the battery.
  • the two connecting lines 41 extend on the housing and then extend in housing bores through the housing wall onto the circuit board 40, which is arranged inside the housing.
  • the board may be located outside the housing, although the arrangement within the housing is preferred for reasons of robustness.
  • Fig. 4 shows an easy way to retrofit a battery-powered terminal with a receiver for inductive E- nergiemakers.
  • the wireless interface is mounted directly on the battery.
  • both the antenna applied to the film and the flexible circuit can be glued directly onto the battery.
  • the electromagnetic fields of the transmitter penetrate the housing cover and induce in the antenna on the battery the required electrical voltage. It can be made by battery manufacturers exchange batteries for any devices that retrofit a terminal with a wireless charging interface by simple Allow replacement of the energy storage.
  • the connection between the receiver circuit of the wireless charging interface and the battery is again by means of cables.
  • the electronics such as rectifiers, charge controllers and voltage limiters, can either be accommodated on the flexible circuit board which serves as the carrier for the antenna. But it can also, as shown in Fig. 4, in the battery case z. B. to the board on which the usual protection electronics for the battery is to be mounted.
  • the embodiment in which the wireless charging interface is placed on the battery and not on the outside of the mobile device works particularly well when the battery cover, so the lid for closing the battery port 31 of Fig. 3, which is not shown in Fig. 3, is made of plastic or is generally made of a material that does not shield electromagnetic waves, but lets through.
  • the lid for closing the battery port 31 of Fig. 3 which is not shown in Fig. 3, is made of plastic or is generally made of a material that does not shield electromagnetic waves, but lets through.
  • a metallic housing is used for a mobile device, it is preferred to apply the wireless charging interface on the outside of the housing.
  • the wireless charging interface can be applied to the battery there. This is desirable in terms of the aesthetics of the device, since then the external appearance of the device is not affected by the applied wireless charging interface.
  • the energy storage is usually safe and well protected in its working position in the housing of the mobile device recorded, so that thereby a good protection for the wireless charging interface is achieved.
  • each energy store in a mobile device has a certain mounting position, in that the contacts of the energy store are connected to the corresponding housings.
  • the mobile device's secondary contacts, shown at 33 in FIG. 3, are properly coupled together. Therefore, the side of the energy storage device, which is directed to the housing cover, is predetermined. It is preferred to apply the antenna 11 of the wireless charging interface on the side of the energy store, which is not directed into the housing inside, but on the side of the energy storage, which lies below the housing cover.
  • the antenna can also be applied directly on the outside of the battery, provided that it is designed to be electrically insulating, eg. B. be coated by a process for printed circuits and by means of a protective coating, such as a protective lacquer.
  • a protective coating such as a protective lacquer.
  • the present invention allows a quick retrofitting of any terminal devices with an inductive charging option, but also the initial equipment z.
  • the user can therefore apply the charging sticker itself on the terminal or can use a findku with charging sticker itself in the terminal.
  • the prerequisite is created to recharge all entrained electronic devices using a single universal charger, since the energy storage-specific adaptation is achieved by the custom designed and designed charge label, which is attached once and is firmly connected to the mobile device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Une interface de charge sans fil pour un accumulateur d'énergie destiné à un appareil mobile présente une antenne placée sur ou dans une feuille. Un circuit récepteur, relié à l'antenne, peut être placé sur la feuille, ledit circuit récepteur étant conçu pour produire un courant de charge pour l'accumulateur d'énergie à partir d'un rayonnement acquis par l'antenne. De plus, un élément de connexion est prévu pour relier une sortie de courant de charge du circuit récepteur à l'accumulateur d'énergie. L'antenne peut être appliquée également directement sur un boîtier d'accumulateur d'énergie. Ainsi, n'importe quel appareil mobile peut être chargé au moyen d'un seul et unique appareil de charge sans fil.
PCT/EP2009/000269 2008-02-07 2009-01-16 Interface de charge sans fil pour un accumulateur d'énergie Ceased WO2009097958A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008007822A DE102008007822A1 (de) 2008-02-07 2008-02-07 Drahtlose Ladeschnittstelle für einen Energiespeicher
DE102008007822.0 2008-02-07

Publications (1)

Publication Number Publication Date
WO2009097958A1 true WO2009097958A1 (fr) 2009-08-13

Family

ID=40732094

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/000269 Ceased WO2009097958A1 (fr) 2008-02-07 2009-01-16 Interface de charge sans fil pour un accumulateur d'énergie

Country Status (2)

Country Link
DE (1) DE102008007822A1 (fr)
WO (1) WO2009097958A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110476296A (zh) * 2017-04-05 2019-11-19 西门子股份公司 电源系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012208478A1 (de) * 2012-05-21 2013-11-21 Magna Exteriors & Interiors Management Gmbh Übertragungselement
DE102017012195B4 (de) 2017-06-09 2022-06-02 Sivantos Pte. Ltd. Hörgerät, insbesondere Hinter-dem-Ohr-Hörhilfegerät
DE102017209813B3 (de) 2017-06-09 2018-09-06 Sivantos Pte. Ltd. Hörgerät, insbesondere Hinter-dem-Ohr-Hörhilfegerät
DE102020108363A1 (de) 2020-03-26 2021-09-30 Bayerische Motoren Werke Aktiengesellschaft Ladeadapter zum Laden einer Fahrzeugbatterie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003096361A1 (fr) * 2002-05-13 2003-11-20 Splashpower Limited Perfectionnement portant sur le transfert d'energie electromagnetique
WO2004055654A2 (fr) * 2002-12-16 2004-07-01 Splashpower Limited Adaptation de dispositifs electriques portatifs pour la reception sans fil d'energie
DE102004039650A1 (de) * 2004-08-16 2006-03-09 Giesecke & Devrient Gmbh Flexibles kontaktloses Aufladen eines Akkumulators
US20080024091A1 (en) * 2006-07-28 2008-01-31 Semiconductor Energy Laboratory Co., Ltd. Power storage device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19931083C2 (de) * 1999-05-07 2002-07-18 Univ Eberhard Karls Retina-Implantat und Verfahren zur Herstellung eines solchen
DE202004016751U1 (de) * 2004-10-28 2005-01-27 Pro-Micron Gmbh & Co. Kg Modular Systems Transpondersystem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003096361A1 (fr) * 2002-05-13 2003-11-20 Splashpower Limited Perfectionnement portant sur le transfert d'energie electromagnetique
WO2004055654A2 (fr) * 2002-12-16 2004-07-01 Splashpower Limited Adaptation de dispositifs electriques portatifs pour la reception sans fil d'energie
DE102004039650A1 (de) * 2004-08-16 2006-03-09 Giesecke & Devrient Gmbh Flexibles kontaktloses Aufladen eines Akkumulators
US20080024091A1 (en) * 2006-07-28 2008-01-31 Semiconductor Energy Laboratory Co., Ltd. Power storage device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110476296A (zh) * 2017-04-05 2019-11-19 西门子股份公司 电源系统
CN110476296B (zh) * 2017-04-05 2023-01-03 西门子能源有限责任公司 电源系统

Also Published As

Publication number Publication date
DE102008007822A1 (de) 2009-08-13

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