DE202009009693U1 - Device for inductive transmission of electrical energy - Google Patents

Device for inductive transmission of electrical energy

Info

Publication number
DE202009009693U1
DE202009009693U1 DE202009009693U DE202009009693U DE202009009693U1 DE 202009009693 U1 DE202009009693 U1 DE 202009009693U1 DE 202009009693 U DE202009009693 U DE 202009009693U DE 202009009693 U DE202009009693 U DE 202009009693U DE 202009009693 U1 DE202009009693 U1 DE 202009009693U1
Authority
DE
Germany
Prior art keywords
measuring
inductance
impedance
output
inductances
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.)
Expired - Lifetime
Application number
DE202009009693U
Other languages
German (de)
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.)
Conductix Wampfler GmbH
Original Assignee
Conductix Wampfler GmbH
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 Conductix Wampfler GmbH filed Critical Conductix Wampfler GmbH
Priority to DE202009009693U priority Critical patent/DE202009009693U1/en
Publication of DE202009009693U1 publication Critical patent/DE202009009693U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12Inductive energy transfer
    • B60L53/124Detection or removal of foreign bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30Constructional details of charging stations
    • B60L53/35Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/38Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • B60L53/39Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer with position-responsive activation of primary coils
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J5/00Circuit arrangements for transfer of electric power between ac networks and dc networks
    • H02J5/005Circuit arrangements for transfer of electric power between ac networks and dc networks with inductive power transfer
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/022Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter
    • H02J7/025Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter using non-contact coupling, e.g. inductive, capacitive
    • Y02T10/7005
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations
    • Y02T90/121
    • Y02T90/122
    • Y02T90/125
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

Abstract

Device for the inductive transmission of electrical energy from a stationary unit having at least one primary inductance (2) to a stationary vehicle (1) having at least one secondary inductance (4), characterized in that the stationary unit comprises means (12, 13, 14 2, 16, 14) for detecting the presence of an electrically conductive article (11, 1) within a predetermined space adjacent to the primary inductance (2).

Description

  • The The invention relates to a device for inductive transmission electrical energy according to the preamble of claim 1. Such Devices are used to inductive charge one in an electric vehicle built-in, rechargeable battery. During the energy transfer is between a stationary primary coil and a vehicle-side secondary coil, a magnetic field higher field strength and flux density built up. This is necessary to use in the secondary coil for the desired transmission power induce high enough current.
  • Become objects made of metallic materials in the field of such a field introduced, so are induced in these eddy currents, which leads to a of material, duration of insertion and amount of field strength dependent heating. at Existence of appropriate conditions may be such an object reach a temperature that causes damage, such. B. for melting in plastic surfaces, or to hazards lead by persons can. The latter occur especially when the secondary side is removed became and warmed Metal objects freely accessible are and are touched by people can.
  • by virtue of the characteristic of previous applications for inductive energy transfer systems became a corresponding hazard by metallic foreign bodies assessed as not relevant or, for example, in industrial trucks (AGV) by in front of the secondary side Customers attached brushes trying to get such items to remove from critical field areas. For vehicles with driver can be pointed out in the context of a training, in the enterprise on such objects to pay attention and this before commissioning the inductive transmission to remove or inductive transmission in case of doubt not to put into operation. For a largely automatic operation or at higher Safety requirements, of which in particular when using such systems in public accessible Areas, the previous security measures appear as unsuitable or at least inadequate.
  • Of the The invention is therefore based on the object, the reliability an inductive energy transmission system in terms of presence electric conductive foreign body to improve.
  • These The object is achieved by a Device solved with the features of claim 1. advantageous Embodiments are specified in the subclaims.
  • According to the invention has a Device for inductive transmission electrical energy from a stationary unit with at least a primary inductance to a adjacent to this stationary vehicle having at least one secondary inductance, the stationary unit via a Device for detecting the presence of an electrically conductive object within a predetermined space adjacent to the primary inductance. in this connection interested primarily in the inductive energy transfer between the primary inductance and the Secondary inductance lying Room. If the range of the detection device is chosen to be larger, then is over the presence of conductive foreign bodies close beyond the primary inductance also the presence of one Detected vehicle in the primary inductance.
  • Preferably is a sensor based on inductive, d. H. with an impedance measurement at a measuring inductance provided, since such a particularly well to the distinction between conductive and non-conductive objects suitable. As measuring inductance In the simplest case, the already present primary inductance can be used become. A higher one Sensitivity and an approximate position determination of a metallic object allows the use of a regular two-dimensional Arrangement of a large number of separate measuring inductances. These can For example, be designed as planar coils that are inexpensive in greater Make number on a common substrate.
  • A Evaluation device compares the impedance of the measuring inductance or a Distribution of the impedances of the individual measuring inductances or Groups of measuring inductances with a reference impedance or reference distribution. In presence a deviation of predetermined magnitude, a signal is output, which indicates the deviation. This signal can be displayed on a display device are output and / or to deactivate the power supply used the primary inductance become.
  • following Be exemplary embodiments of Invention described with reference to the drawings. In these shows
  • 1 a schematic representation of a charging station for inductive energy transfer with an in-loading electric vehicle,
  • 2 a schematic representation of a sensor according to the invention for the detection of conductive foreign bodies.
  • 1 shows an electric vehicle 1 which to charge its battery over the primary coil 2 a charging station, in a schematic sectional view (top) and in a schematic plan view (bottom). At the bottom of the vehicle 1 is located in a housing 3 a secondary coil 4 that come with a charging electronics 5 connected is. This converts the parameters of inductively into the secondary coil 4 transferred electrical power in to charge the battery of the vehicle 1 suitable values. The primary coil 2 is from a power supply unit 6 fed the charging station and is in a housing 8th housed, which is stationarily mounted on a vehicle parking space. The power supply unit 6 is from a control unit 7 the charging station controlled.
  • Dashed are in 1 some field lines 9 of the primary coil 2 indicated during operation magnetic alternating field. Its main direction corresponds to the direction of the coil axis of the primary coil 2 and thus is the vertical direction. In the gap 10 immediately above the housing 8th the primary coil 2 During operation, there is a high magnetic field strength and flux density.
  • On the case 8th the primary coil 2 lies a metallic object 11 , This may be, for example, from another vehicle, which is in front of the vehicle 1 at the charging station, have solved. It could also be a commodity lost by a person or an empty beverage can. Last but not least, the item could 11 also intentionally deposited there by a person in sabotage intent. As already explained, the article would be energized by the primary coil 2 heat as a result of the eddy currents induced in it and thereby become a source of danger. Moreover, through him would be the efficiency of energy transfer to the secondary coil 4 impaired.
  • How the present invention overcomes this problem is explained below 2 explained. This shows a schematic plan view of a charging station of the basis 1 explained type with a primary coil 2 in a housing 8th that comes with a power supply unit 6 connected is. To the metallic foreign body 11 to disengage, are in the case 8th between its upper wall and the primary coil 2 a variety of measuring coils 12 arranged. These measuring coils 12 each are much smaller than the primary coil 2 , They are designed to be planar in the example shown and can be realized for example in the form of printed conductors on a printed circuit board or a film, which from the inside to the upper wall of the housing 8th is attached. Also, the measuring coils could 12 as directly on the inner surface of the top of the case 8th be executed running tracks.
  • The measuring coils 12 form a regular two-dimensional arrangement in the manner of a matrix with the same pitch in the rows and columns. In this case, however, successive rows are offset from each other by half a grid dimension, whereby a higher packing density can be achieved compared to a classical matrix arrangement. In 2 it seems that the leads of some measuring coils 12 through other measuring coils 12 pass through, which is actually not the case. To avoid this despite high packing density, the measuring coils 12 in particular distributed on two different sides of a printed circuit board or film. The representation of 2 is therefore not to be understood as realistic, but as schematic.
  • The measuring coils 12 are each with an impedance measuring device 13 connected. These impedance measuring devices 13 are to a central evaluation facility 14 connected. If no energy transfer takes place, but the charging station is in the standby state, the measuring coils 12 subjected to a measuring current of predetermined strength. This generates around each measuring coil 12 around a measuring field in one on the housing 8th metallic foreign bodies lying above the respective measuring coil 11 Generated eddy currents. The magnetic reaction of these eddy currents to the respective measuring coil 12 Expresses itself in a change of the impedance.
  • The impedance of each measuring coil 12 is determined by their respective associated impedance measuring device 13 permanently measured.
  • The of the individual impedance measuring devices 13 delivered measured values are in an evaluation device 14 constantly compared with each other and possibly also with a reference value. At the in 2 illustrated situation in which a metallic foreign body 11 four of the measuring coils 12 at least partially covered, the four deliver in 2 black marked impedance measuring devices 13 that covered these measuring coils 12 are assigned, other impedance values to the evaluation device 14 as the remaining impedance measuring devices 13 that are not covered measuring coils 13 assigned. The extent of the impedance deviation depends on the conductivity and the shape of the foreign body 11 also on the respective extent of the coverage of a measuring coil 12 through the foreign body 11 from. In the in 2 illustrated situation is one of the measuring coils 12 from the foreign body 11 almost completely covered, another half and two more, each in a smaller part, with the result that the four in 2 black marked impedance measuring devices 13 measure different impedance changes.
  • Alternatively to an assignment per own impedance measuring device 13 to every single measuring coil 12 as they are in 2 is shown, the measuring coils 12 also be interconnected in groups, so that each group has an impedance measuring device 13 which would measure the resulting total impedance of the group. In this way would less impedance measuring devices 13 needed, but the spatial resolution of the measurement would be worse.
  • Furthermore, alternatively, several measuring coils 12 or groups of such having a common impedance measuring device 13 be measured by the impedance measuring device 13 an analog multiplexer would be connected upstream. This would even fewer impedance measuring devices 13 needed, in principle, only one. A multiplex operation would of course be multiplied by a total for the detection of the impedances of all measuring coils 12 connected time required. However, since changing the vehicle at a charging station is not a very fast process, this could still be acceptable.
  • By distributing a variety of measuring coils 12 over the top of the case 8th It is possible to draw conclusions on the size and position of a metallic object when the impedances of the measuring coils 12 at least in groups or, as in 2 assumed to be measured individually. In addition, this increases the sensitivity, since a relatively small foreign body 11 for example, only a single measuring coil 12 or a small group of these covered, in this measuring coil 12 or group already causes a significant impedance change, whereas at a single large measuring coil, its measuring field covers the entire top of the case 8th would only cause a comparatively small impedance change, which would be much more difficult to reliably detect.
  • Regardless of the number of measuring coils 12 and their eventual summary into groups are provided by the evaluation facility 14 whenever the measured impedance distribution deviates from a stored reference distribution over a predetermined minimum, an output signal to a display device 15 off, which emits a visual and / or audible warning. In addition, the evaluation device 14 also with the control unit 7 connected to the charging station and outputs to this a signal, which is the initiation of an energy transfer, ie an energization of the primary coil 2 blocked. If the determined deviation from the nominal state persists for a longer period of time, then a message is sent to a responsible authority, e.g. B. sold to the operator of the charging station. The energy transfer can only be put back into operation after a correction of the faulty condition has been acknowledged by maintenance personnel.
  • Because the measuring coils 12 in the operation of the inductive energy transfer the strong magnetic field of the primary coil 2 are exposed, it must be prevented that in this way high currents are induced. For this, the impedance measuring devices must 13 be switched off before the start of the energy transfer and the measuring coils 12 must be switched to idle. For this purpose, the spreader unit gives 7 in good time before the activation of a primary current, a corresponding signal to the evaluation device 14 from which the measuring devices 13 to said shutdown and to switch the measuring coils 12 caused to idle.
  • A greatly simplified variant of the previously described embodiment of the invention is the use of the primary coil 2 as the only measuring coil. This is done in the primary coil 2 constantly fed a minimum current, which is sufficient to a magnetic field of low power as the measuring field around the primary coil 2 to build up around. The impedance of the primary coil 2 is by means of a suitable measuring device 16 , in the 2 dashed lines, constantly measured. This variant eliminates the separate measuring coils 12 and the associated impedance measuring devices 13 ,
  • It is understood that using the primary coil 2 as the only inductive sensor only a comparatively rough monitoring of the housing 8th on the presence of a metallic foreign body 11 is possible, ie that hereby only comparatively larger foreign body 11 can be reliably detected. Further, from an impedance change of the primary coil 2 no conclusion on the position of the foreign body 11 and only a limited conclusion on its dimensions possible. This is the cost of additional hardware compared to the previously described embodiment with a matrix of separate measuring coils 12 much lower.
  • In any case, when determining the strength of the measuring field and thus also its spatial extent, it must be ensured that there is only a limited vertical range, for example up to about 50 mm above the housing 8th , covers. This can be prevented even by parking a vehicle 1 above the housing 8th an impedance change of the measuring coils 12 caused and by the evaluation device 14 as the presence of a metallic foreign body 11 misinterpreted. Furthermore, when determining the field strength of the Be aware that they must not be sufficient to a metallic object 11 to be heated to the extent that damage or hazards may arise.
  • In the embodiment described first, the presence of a vehicle can be determined on the basis of the spatial distribution of the impedance changes and / or on the basis of their dimensions 1 above the primary coil 2 recognized and that of a metallic foreign body 11 be differentiated. For the purposes of the present invention, namely, a vehicle 1 including its secondary coil 4 In this case, the measuring field is designed so that even a larger vertical range can be monitored, for example up to about 300 mm above the housing 8th , One from the evaluation facility 14 to the control unit 7 output signal indicates in this case whether it is a foreign body 11 or a vehicle 1 is.
  • The reported by the evaluation unit 14 reported detection of a vehicle 1 can from the control unit 7 For example, be used to initiate the energy transfer process. On the other hand, the attempt to recognize a vehicle that is not to be loaded can be recognized in this way 1 to turn off at the charging station. In the latter case, measures can then be taken to ensure the final parking of the vehicle 1 To prevent and thus the charging for other vehicles that have a charging requirement, keep clear.
  • Is detected a sufficient and lasting change in the impedance or impedance distribution, the presence of a vehicle 1 suggests, then can contact with the detected vehicle 1 be initiated for the purpose of his further identification. This can be done for example by querying a vehicle identifier by means of a transponder (RFID) or other suitable technical methods. At the same time, the communication with the vehicle is used to check whether and in what form there is a need and authorization to obtain energy from the charging station. If a vehicle is detected that has no need for or no power transfer, it is at the discretion of the competent authorities to respond appropriately to eliminate the blockage of the charging station. If a vehicle 1 is detected, but no communication can be recorded to him, is like a detection of a foreign body 11 continue to proceed.

Claims (16)

  1. Device for inductive transmission of electrical energy from a stationary unit having at least one primary inductance ( 2 ) to an adjacent vehicle ( 1 ) with at least one secondary inductance ( 4 ), characterized in that the stationary unit comprises a device ( 12 . 13 . 14 ; 2 . 16 . 14 ) for detecting the presence of an electrically conductive object ( 11 . 1 ) within a predetermined, to the primary inductance ( 2 ) has adjacent room.
  2. Device according to claim 1, characterized in that the space around the inductive energy transfer between the primary inductance ( 2 ) and the secondary inductance ( 4 ) space ( 10 ).
  3. Device according to Claim 1 or 2, characterized in that the device has at least one measuring inductance, a measuring device ( 13 ; 16 ) for measuring the impedance of the measuring inductance ( 12 ; 2 ) and one with the measuring device ( 13 ; 16 ) connected evaluation device ( 14 ) having.
  4. Device according to claim 3, characterized in that the measuring inductance with the primary inductance ( 2 ) is identical.
  5. Device according to claim 3, characterized in that the measuring inductance ( 12 ) separately from the primary inductance ( 2 ) and adjacent to the primary inductance ( 2 ) on the side of the primary inductance ( 2 ), which during the inductive energy transfer of the secondary inductance ( 4 ) is facing.
  6. Device according to claim 5, characterized in that the measuring inductance ( 12 ) is designed as a planar coil.
  7. Device according to one of claims 4 to 6, characterized in that a plurality of measuring inductances ( 12 ) and that they form a regular two-dimensional arrangement which extends at least approximately in a plane which is perpendicular to the main direction of the magnetic field generated by the primary inductance ( 9 ) lies.
  8. Apparatus according to claim 7, characterized in that the measuring inductances ( 12 ) are arranged in the form of a matrix, each with the same pitch within the rows and columns.
  9. Apparatus according to claim 7 or 8, characterized in that successive rows of measuring inductances ( 12 ) are each offset in their longitudinal direction by half the pitch of a row against each other.
  10. Device according to one of claims 7 to 9, characterized in that the measuring inductances ( 12 ) are connected together in groups so that only the resulting impedances of the groups are measurable.
  11. Device according to one of claims 7 to 10, characterized in that each individual measuring inductance ( 12 ) or each group of measuring inductances its own impedance measuring device ( 13 ) assigned.
  12. Device according to one of claims 7 to 10, characterized in that a plurality of individual measuring inductances ( 12 ) or groups of measuring inductances ( 12 ) are connected via an analog multiplexer to a common impedance measuring device.
  13. Device according to one of claims 3 to 11, characterized in that the evaluation device ( 14 ) the impedance of the measuring inductance ( 12 ; 2 ) or a distribution of the impedances of the individual measuring inductances ( 12 ) or groups of measuring inductances ( 12 ) compares with a reference impedance and has at least one output at which a signal indicative of the presence of a predetermined amount of deviation is output.
  14. Apparatus according to claim 13, characterized in that an output of the evaluation device ( 14 ) with a display device ( 15 ) and that a signal output at the output indicates the output of a warning signal by the display device ( 15 ) triggers.
  15. Apparatus according to claim 13 or 14, characterized in that an output of the evaluation device ( 14 ) with a control unit ( 7 ), which a power supply unit ( 6 ) of the primary inductance ( 2 ) is connected, and that a signal output at the output deactivates the power supply device ( 6 ) by the control device ( 7 ) triggers.
  16. Device according to one of claims 13 to 15, characterized in that the evaluation device ( 14 ) for detecting an electrically conductive object in the form of a vehicle ( 1 ) is set up on the basis of the determined impedance or impedance distribution, and that a signal output by it indicates whether a vehicle ( 1 ) was detected.
DE202009009693U 2009-07-14 2009-07-14 Device for inductive transmission of electrical energy Expired - Lifetime DE202009009693U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202009009693U DE202009009693U1 (en) 2009-07-14 2009-07-14 Device for inductive transmission of electrical energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009009693U DE202009009693U1 (en) 2009-07-14 2009-07-14 Device for inductive transmission of electrical energy

Publications (1)

Publication Number Publication Date
DE202009009693U1 true DE202009009693U1 (en) 2010-11-25

Family

ID=43218188

Family Applications (1)

Application Number Title Priority Date Filing Date
DE202009009693U Expired - Lifetime DE202009009693U1 (en) 2009-07-14 2009-07-14 Device for inductive transmission of electrical energy

Country Status (1)

Country Link
DE (1) DE202009009693U1 (en)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2968616A1 (en) * 2010-12-08 2012-06-15 Renault Sas Motor vehicle, has detection device provided with conductive electrodes integrated with magnetic shield, and generating signal that indicates presence of exterior element arranged between lower part of chassis and ground
DE102011015980A1 (en) * 2011-04-04 2012-10-04 Sew-Eurodrive Gmbh & Co. Kg System for non-contact transmission of energy from a primary winding to a one of the primary winding inductively kopelbare secondary winding comprehensive vehicle. Method for detecting metal pieces in the system. Method for positioning a vehicle.A method for determining a direction and positioning control method. System for contactless transmission of energy from a primary winding to a secondary winding inductively coupled to the primary winding
EP2524834A1 (en) 2011-05-18 2012-11-21 Brusa Elektronik AG Device for inductive charging of at least one electrical energy storage device of an electric car
DE102011050655A1 (en) * 2011-05-26 2012-11-29 Conductix-Wampfler Gmbh Method for detecting an electrically conductive foreign body and device for inductive transmission of electrical energy
WO2013036947A2 (en) 2011-09-09 2013-03-14 Witricity Corporation Foreign object detection in wireless energy transfer systems
CN103098344A (en) * 2011-05-27 2013-05-08 日产自动车株式会社 Contactless electricity supply device
DE102012202472A1 (en) 2012-02-17 2013-08-22 Siemens Aktiengesellschaft Device for contactless transmission of energy to a corresponding device
WO2013127445A1 (en) * 2012-02-29 2013-09-06 Siemens Aktiengesellschaft Charging system for the galvanically separated charging of an electrical energy accumulator of a vehicle, electrically powered vehicle, charging station for a vehicle, and corresponding method
WO2013143926A1 (en) * 2012-03-30 2013-10-03 Bayerische Motoren Werke Aktiengesellschaft Device for inductive power transmission
CN103782485A (en) * 2011-09-12 2014-05-07 索尼公司 Device and system for power transmission
WO2014095714A2 (en) * 2012-12-17 2014-06-26 Bombardier Transportation Gmbh A safety system, a method of operating a safety system and a method of building a safety system
WO2014095722A2 (en) * 2012-12-17 2014-06-26 Bombardier Transportation Gmbh A safety system, a method of operating a safety system and a method of building a safety system
EP2801498A1 (en) * 2013-05-07 2014-11-12 Brusa Elektronik AG Assembly and method for inductively charging mobile devices
DE102013212736A1 (en) * 2013-06-28 2014-12-31 Siemens Aktiengesellschaft Inductive charging device, electric vehicle, charging station and method for inductive charging
WO2014063159A3 (en) * 2012-10-19 2014-12-31 Witricity Corporation Foreign object detection in wireless energy transfer systems
DE102013215034A1 (en) * 2013-07-31 2015-02-05 Siemens Aktiengesellschaft Charging device and method for inductive charging, in particular of electric vehicles
DE102013219131A1 (en) 2013-09-24 2015-03-26 Siemens Aktiengesellschaft Device and method for detecting a foreign body in a magnetic field intended for conduction-free energy transfer
DE102013220173A1 (en) 2013-10-07 2015-04-09 Robert Bosch Gmbh Method for inductive energy transmission and control device for at least one designed for inductive energy transmission electrical device
EP2761724A4 (en) * 2011-09-29 2015-06-24 Lg Innotek Co Ltd Wireless power transmitter, wireless power receiver and impedence control method
DE102014205598A1 (en) 2014-03-26 2015-10-01 Robert Bosch Gmbh Monitoring device for at least one designed for inductive power transmission electrical device and method for monitoring at least a sub-environment of at least one designed for inductive power transmission electrical device
EP2940829A4 (en) * 2012-12-28 2016-01-27 Panasonic Ip Man Co Ltd Non-contact power supply apparatus
WO2016076733A1 (en) * 2014-11-11 2016-05-19 Powerbyproxi Limited Inductive power transmitter
EP3073601A4 (en) * 2013-11-18 2016-09-28 Ihi Corp Wireless power supply system
EP3093958A1 (en) * 2015-05-15 2016-11-16 Panasonic Intellectual Property Management Co., Ltd. Foreign object detecting device, wireless power transmitting apparatus, and wireless power transfer system
WO2017092949A1 (en) * 2015-12-02 2017-06-08 Robert Bosch Gmbh Monitoring device for monitoring an inductive energy transmission device
WO2017194338A1 (en) * 2016-05-10 2017-11-16 Koninklijke Philips N.V. Foreign object detection in a wireless power transfer system
EP3315349A1 (en) * 2016-10-28 2018-05-02 STILL GmbH Industrial truck with a battery electrical drive system having a traction battery
US10069336B2 (en) 2013-06-28 2018-09-04 Siemens Aktiengesellschaft Inductive charging device, electric vehicle, charging station, and method for inductive charging
WO2018233926A1 (en) 2017-06-21 2018-12-27 Audi Ag Component of an inductive energy transmission apparatus with object recognition and method for operating an inductive energy transmission apparatus

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2968616A1 (en) * 2010-12-08 2012-06-15 Renault Sas Motor vehicle, has detection device provided with conductive electrodes integrated with magnetic shield, and generating signal that indicates presence of exterior element arranged between lower part of chassis and ground
DE102011015980A1 (en) * 2011-04-04 2012-10-04 Sew-Eurodrive Gmbh & Co. Kg System for non-contact transmission of energy from a primary winding to a one of the primary winding inductively kopelbare secondary winding comprehensive vehicle. Method for detecting metal pieces in the system. Method for positioning a vehicle.A method for determining a direction and positioning control method. System for contactless transmission of energy from a primary winding to a secondary winding inductively coupled to the primary winding
EP2524834A1 (en) 2011-05-18 2012-11-21 Brusa Elektronik AG Device for inductive charging of at least one electrical energy storage device of an electric car
WO2012156846A2 (en) 2011-05-18 2012-11-22 Brusa Elektronik Ag Device for inductively charging at least one electric energy store of an electric vehicle
US9296304B2 (en) 2011-05-18 2016-03-29 Brusa Elektronik Ag Device for inductively charging at least one electric energy store of an electric vehicle
DE102011050655A1 (en) * 2011-05-26 2012-11-29 Conductix-Wampfler Gmbh Method for detecting an electrically conductive foreign body and device for inductive transmission of electrical energy
WO2012160136A3 (en) * 2011-05-26 2013-07-18 Conductix-Wampfler Gmbh Method for detecting an electrically conductive foreign body and device for inductively transmitting electrical energy
US9623763B2 (en) 2011-05-26 2017-04-18 Conductix—Wampfler Gmbh Method for detecting an electrically conductive foreign body in a region of a device for inductively transmitting electrical energy and device for inductively transmitting electrical energy
CN103098344A (en) * 2011-05-27 2013-05-08 日产自动车株式会社 Contactless electricity supply device
EP2717431A4 (en) * 2011-05-27 2015-07-15 Nissan Motor Contactless electricity supply device
US9553636B2 (en) 2011-05-27 2017-01-24 Nissan Motor Co., Ltd. Contactless electricity supply device with foreign object detector
US20130169062A1 (en) * 2011-05-27 2013-07-04 Nissan Motor Co., Ltd. Contactless electricity supply device
CN103098344B (en) * 2011-05-27 2016-05-11 日产自动车株式会社 Contactless power supply device
AU2012305688B2 (en) * 2011-09-09 2017-06-01 Witricity Corporation Foreign object detection in wireless energy transfer systems
KR20180083956A (en) * 2011-09-09 2018-07-23 위트리시티 코포레이션 Foreign object detection in wireless energy transfer systems
US10027184B2 (en) 2011-09-09 2018-07-17 Witricity Corporation Foreign object detection in wireless energy transfer systems
EP2754222A4 (en) * 2011-09-09 2015-05-06 Witricity Corp Foreign object detection in wireless energy transfer systems
KR102010943B1 (en) 2011-09-09 2019-08-14 위트리시티 코포레이션 Foreign object detection in wireless energy transfer systems
US9442172B2 (en) 2011-09-09 2016-09-13 Witricity Corporation Foreign object detection in wireless energy transfer systems
WO2013036947A2 (en) 2011-09-09 2013-03-14 Witricity Corporation Foreign object detection in wireless energy transfer systems
KR20140065396A (en) * 2011-09-12 2014-05-29 소니 주식회사 Device and system for power transmission
KR101951063B1 (en) * 2011-09-12 2019-02-21 소니 주식회사 Device and system for power transmission
US10530425B2 (en) 2011-09-12 2020-01-07 Sony Corporation Device and system for power transmission
CN103782485A (en) * 2011-09-12 2014-05-07 索尼公司 Device and system for power transmission
EP2756581A4 (en) * 2011-09-12 2015-06-03 Sony Corp Device and system for power transmission
US9721721B2 (en) 2011-09-29 2017-08-01 Lg Innotek Co., Ltd. Wireless power transmitter, wireless power receiver and impedence control method
EP2761724A4 (en) * 2011-09-29 2015-06-24 Lg Innotek Co Ltd Wireless power transmitter, wireless power receiver and impedence control method
DE102012202472B4 (en) 2012-02-17 2018-03-01 Siemens Aktiengesellschaft Device for contactless transmission of energy to a corresponding device
DE102012202472A1 (en) 2012-02-17 2013-08-22 Siemens Aktiengesellschaft Device for contactless transmission of energy to a corresponding device
WO2013127445A1 (en) * 2012-02-29 2013-09-06 Siemens Aktiengesellschaft Charging system for the galvanically separated charging of an electrical energy accumulator of a vehicle, electrically powered vehicle, charging station for a vehicle, and corresponding method
CN104334394A (en) * 2012-03-30 2015-02-04 宝马股份公司 Device for inductive power transmission
WO2013143926A1 (en) * 2012-03-30 2013-10-03 Bayerische Motoren Werke Aktiengesellschaft Device for inductive power transmission
US9840152B2 (en) 2012-03-30 2017-12-12 Bayerische Motoren Werke Aktiengesellschaft Apparatus for inductive power transmission
CN104334394B (en) * 2012-03-30 2017-07-18 宝马股份公司 Device for induction type transimission power
US10211681B2 (en) 2012-10-19 2019-02-19 Witricity Corporation Foreign object detection in wireless energy transfer systems
WO2014063159A3 (en) * 2012-10-19 2014-12-31 Witricity Corporation Foreign object detection in wireless energy transfer systems
US9404954B2 (en) 2012-10-19 2016-08-02 Witricity Corporation Foreign object detection in wireless energy transfer systems
US10686337B2 (en) 2012-10-19 2020-06-16 Witricity Corporation Foreign object detection in wireless energy transfer systems
US9465064B2 (en) 2012-10-19 2016-10-11 Witricity Corporation Foreign object detection in wireless energy transfer systems
WO2014095714A2 (en) * 2012-12-17 2014-06-26 Bombardier Transportation Gmbh A safety system, a method of operating a safety system and a method of building a safety system
US9895989B2 (en) 2012-12-17 2018-02-20 Bombardier Transportation Gmbh Safety system, a method of operating a safety system and a method of building a safety system
WO2014095722A3 (en) * 2012-12-17 2014-10-30 Bombardier Transportation Gmbh A safety system, a method of operating a safety system and a method of building a safety system
WO2014095722A2 (en) * 2012-12-17 2014-06-26 Bombardier Transportation Gmbh A safety system, a method of operating a safety system and a method of building a safety system
WO2014095714A3 (en) * 2012-12-17 2014-10-30 Bombardier Transportation Gmbh A safety system, a method of operating a safety system and a method of building a safety system
CN104870236B (en) * 2012-12-17 2017-07-18 庞巴迪运输有限公司 Security system, the method for safe operation system and the method for building security system
US10059212B2 (en) * 2012-12-17 2018-08-28 Bombardier Transportation Gmbh Safety system, a method of operating a safety system and a method of building a safety system
US9906048B2 (en) 2012-12-28 2018-02-27 Panasonic Intellectual Property Management Co., Ltd. Non-contact power supply apparatus
EP2940829A4 (en) * 2012-12-28 2016-01-27 Panasonic Ip Man Co Ltd Non-contact power supply apparatus
EP2801498A1 (en) * 2013-05-07 2014-11-12 Brusa Elektronik AG Assembly and method for inductively charging mobile devices
WO2014181268A2 (en) 2013-05-07 2014-11-13 Brusa Elektronik Ag Arrangement and method for inductive charging of mobile devices
DE102013212736A1 (en) * 2013-06-28 2014-12-31 Siemens Aktiengesellschaft Inductive charging device, electric vehicle, charging station and method for inductive charging
US10069336B2 (en) 2013-06-28 2018-09-04 Siemens Aktiengesellschaft Inductive charging device, electric vehicle, charging station, and method for inductive charging
DE102013215034A1 (en) * 2013-07-31 2015-02-05 Siemens Aktiengesellschaft Charging device and method for inductive charging, in particular of electric vehicles
DE102013219131A1 (en) 2013-09-24 2015-03-26 Siemens Aktiengesellschaft Device and method for detecting a foreign body in a magnetic field intended for conduction-free energy transfer
DE102013219131B4 (en) 2013-09-24 2018-07-19 Siemens Aktiengesellschaft Device and method for detecting a foreign body in a magnetic field intended for conduction-free energy transfer
DE102013220173A1 (en) 2013-10-07 2015-04-09 Robert Bosch Gmbh Method for inductive energy transmission and control device for at least one designed for inductive energy transmission electrical device
US10454310B2 (en) 2013-11-18 2019-10-22 Ihi Corporation Wireless power-transmitting system
EP3073601A4 (en) * 2013-11-18 2016-09-28 Ihi Corp Wireless power supply system
WO2015144268A1 (en) 2014-03-26 2015-10-01 Robert Bosch Gmbh Monitoring an apparatus for inductive energy transmission – apparatus and method
DE102014205598A1 (en) 2014-03-26 2015-10-01 Robert Bosch Gmbh Monitoring device for at least one designed for inductive power transmission electrical device and method for monitoring at least a sub-environment of at least one designed for inductive power transmission electrical device
CN107112787A (en) * 2014-11-11 2017-08-29 鲍尔拜普罗克西有限公司 Induced power transmitter
WO2016076733A1 (en) * 2014-11-11 2016-05-19 Powerbyproxi Limited Inductive power transmitter
EP3093958A1 (en) * 2015-05-15 2016-11-16 Panasonic Intellectual Property Management Co., Ltd. Foreign object detecting device, wireless power transmitting apparatus, and wireless power transfer system
US9997929B2 (en) 2015-05-15 2018-06-12 Panasonic Intellectual Property Management Co., Ltd. Foreign object detecting device, wireless power transmitting apparatus, and wireless power transfer system
US10693324B2 (en) 2015-12-02 2020-06-23 Robert Bosch Gmbh Monitoring device for monitoring an inductive energy transmission device
WO2017092949A1 (en) * 2015-12-02 2017-06-08 Robert Bosch Gmbh Monitoring device for monitoring an inductive energy transmission device
WO2017194338A1 (en) * 2016-05-10 2017-11-16 Koninklijke Philips N.V. Foreign object detection in a wireless power transfer system
EP3315349A1 (en) * 2016-10-28 2018-05-02 STILL GmbH Industrial truck with a battery electrical drive system having a traction battery
WO2018233926A1 (en) 2017-06-21 2018-12-27 Audi Ag Component of an inductive energy transmission apparatus with object recognition and method for operating an inductive energy transmission apparatus
DE102017210409A1 (en) 2017-06-21 2018-12-27 Audi Ag Component of an inductive energy transfer device with object recognition and method for operating an inductive energy transfer device

Similar Documents

Publication Publication Date Title
US9739641B2 (en) Method and apparatus for controlling stray electromagnetic fields and providing operator feedback when aligning a vehicle with an inductive charging system
CN102457106B (en) Power feeding device, power feeding method, and power feeding system
EP3044845B1 (en) Systems, methods, and apparatus for increased foreign object detection loop array sensitivity
EP2695280B1 (en) System for wireless power transfer to a vehicle, method for metal article detection in said system, method for positioning the vehicle and for defining direction for optimal positioning of vehicle
US20160325923A1 (en) Portion capsule comprising a plastic film provided with a machine-detectable identifier
ES2660781T3 (en) Device and procedure for transporting cargo shelves by means of a transport vehicle on an uneven floor surface
US7804045B2 (en) Portable food heater
EP2730479A1 (en) Passenger occupancy identification system
EP0757509B1 (en) Induction apparatus for heating meals on trays
CN105383316B (en) Automatic self-positioning transmitting coil for wireless vehicle charging
US20140191715A1 (en) Method for detecting an electrically conductive foreign body and device for inductively transmitting electrical energy
CN102227367B (en) Device for checking safety circuit of elevator
CN103427496B (en) Power receiving apparatus and feeding power system
JP6248785B2 (en) Power transmission device and power reception device
US7218225B2 (en) System and method for detecting and rewarding the return of a supermarket trolley or a luggage trolley taken from a trolley park
US7188997B2 (en) Apparatus and method for detecting hot spots in an electric power conductor
DE102014219504A1 (en) Wireless battery charging system with emergency shutdown for a driving battery of an electric vehicle
ES2639022T3 (en) Cooktop with sensors
JP4054760B2 (en) Tracking marking system
US20160138939A1 (en) Metering and measuring point system for measuring and metering electrical energy/electricity and method
US20110218889A1 (en) Retail Display System With Integrated Security and Inventory Management
AU2012225443A1 (en) Intelligent display and fixture system
US20060071774A1 (en) Item monitoring system and methods using an item monitoring system
CA2587925C (en) Low stock alert system
JP5658628B2 (en) Construction machine with presence detection system

Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20101230

R082 Change of representative

Representative=s name: PATENTANWAELTE CHARRIER RAPP & LIEBAU, DE

R150 Utility model maintained after payment of first maintenance fee after three years
R081 Change of applicant/patentee

Owner name: IPT TECHNOLOGY GMBH, DE

Free format text: FORMER OWNER: CONDUCTIX-WAMPFLER AG, 79576 WEIL AM RHEIN, DE

Effective date: 20120803

Owner name: CONDUCTIX-WAMPFLER GMBH, DE

Free format text: FORMER OWNER: CONDUCTIX-WAMPFLER AG, 79576 WEIL AM RHEIN, DE

Effective date: 20120803

R082 Change of representative

Representative=s name: PATENTANWAELTE CHARRIER RAPP & LIEBAU, DE

Effective date: 20120803

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20120921

R082 Change of representative

Representative=s name: PATENTANWAELTE CHARRIER RAPP & LIEBAU, DE

R081 Change of applicant/patentee

Owner name: IPT TECHNOLOGY GMBH, DE

Free format text: FORMER OWNER: CONDUCTIX-WAMPFLER GMBH, 79576 WEIL AM RHEIN, DE

Effective date: 20140828

Owner name: CONDUCTIX-WAMPFLER GMBH, DE

Free format text: FORMER OWNER: CONDUCTIX-WAMPFLER GMBH, 79576 WEIL AM RHEIN, DE

Effective date: 20140828

R082 Change of representative

Representative=s name: PATENTANWAELTE CHARRIER RAPP & LIEBAU, DE

Effective date: 20140828

R151 Utility model maintained after payment of second maintenance fee after six years
R082 Change of representative

Representative=s name: CHARRIER RAPP & LIEBAU PATENTANWAELTE PARTG MB, DE

Representative=s name: PATENTANWAELTE CHARRIER RAPP & LIEBAU, DE

R081 Change of applicant/patentee

Owner name: CONDUCTIX-WAMPFLER GMBH, DE

Free format text: FORMER OWNER: IPT TECHNOLOGY GMBH, 79588 EFRINGEN-KIRCHEN, DE

R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: H02J0017000000

Ipc: H02J0050100000

R152 Utility model maintained after payment of third maintenance fee after eight years
R071 Expiry of right