WO2019082076A1 - Appareil de recharge par induction de véhicules électriques à haut rendement - Google Patents

Appareil de recharge par induction de véhicules électriques à haut rendement

Info

Publication number
WO2019082076A1
WO2019082076A1 PCT/IB2018/058249 IB2018058249W WO2019082076A1 WO 2019082076 A1 WO2019082076 A1 WO 2019082076A1 IB 2018058249 W IB2018058249 W IB 2018058249W WO 2019082076 A1 WO2019082076 A1 WO 2019082076A1
Authority
WO
WIPO (PCT)
Prior art keywords
electromagnetic induction
induction recharging
recharging element
appliance
fact
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/IB2018/058249
Other languages
English (en)
Inventor
Giuseppe Simonazzi
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.)
Meta System SpA
Original Assignee
Meta System SpA
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 Meta System SpA filed Critical Meta System SpA
Priority to CN201880078462.1A priority Critical patent/CN111542984B/zh
Priority to EP18807116.1A priority patent/EP3701618A1/fr
Publication of WO2019082076A1 publication Critical patent/WO2019082076A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods 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
    • B60L53/12—Inductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/66—Data transfer between charging stations and vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Definitions

  • the present invention relates to an appliance for induction recharging of high-efficiency electric vehicles.
  • a number of appliances are known for recharging electric vehicles used both for recharging in the home and for recharging in specific service stations.
  • known recharging systems comprise a battery charger installed on an electric vehicle and connected to one or more batteries to be recharged.
  • the battery charger must be connected by means of appropriate electric connectors to DC/AC power supply means, such as, e.g., the electrical socket commonly used in domestic environments.
  • connection between the battery charger of the electric vehicle and the power supply means must be made by means of a specific power cable and appropriate connectors.
  • the battery charger starts charging the battery using the power supplied by the supply means.
  • the recharging system just described ensures the high-efficiency recharging of the battery of the electric vehicle, but it is not without drawbacks.
  • this system makes it indispensable to use an external power supply cable provided with an appropriate connector, which must be connected manually by the owner of the vehicle or by a skilled operator every time the battery has to be recharged and, on the contrary, must be disconnected every time the recharging operation has terminated.
  • connection and disconnection operations of the power supply cable are not always without risks, e.g., due to electrical faults and/or distraction errors in performing such operations.
  • Another drawback is due to the fact that if the power supply cable is unusable, e.g. because it is lost or broken, recharging the electric vehicle is not possible unless the vehicle is equipped with a replacement power supply cable.
  • connection of the power supply cable to the power supply means and/or to the battery charger may require the use of one or more adapters, especially if recharging is carried out at service stations where the connection standard used is different from that used in the home environment.
  • Induction recharging systems generally comprise two induction recharging assemblies: a first mobile induction recharging assembly mounted on the vehicle and a second fixed induction recharging assembly installed in the appropriate recharging stations, such as e.g., service stations or public car parks, or in domestic environments, as in the case of private garages.
  • the induction recharging assemblies each comprise a series of windings made of high electrical conductivity material, such as, e.g., copper.
  • the mobile induction recharging assembly is mounted under the chassis of the electric vehicle and is substantially facing the ground, while the fixed induction recharging assembly consists of a spiral made of conductive material, such as, e.g., copper, fixed or incorporated to the floor at the recharging stations and connected to AC power supply means.
  • conductive material such as, e.g., copper
  • the two induction recharging assemblies face each other when the vehicle is parked and the battery can be recharged simply by activating the fixed induction recharging assembly.
  • the current flowing this way generates a magnetic field which extends towards the vehicle parked on top of the fixed induction recharging assembly.
  • the magnetic field passes through the windings of the mobile induction recharging assembly to form an inductive coupling.
  • the inductive coupling established between the induction recharging assemblies allows the battery to be recharged without using auxiliary power cables and without the need to perform various manual operations that must be repeated at each recharging operation and which are repetitive and tedious over time.
  • the magnetic field passing through the fixed induction recharging assembly in turn generates a current that recharges the battery of the electric vehicle.
  • this recharging system is also susceptible to upgrading tied to the magnetic coupling between the induction recharging assemblies used in the recharging process.
  • the two induction recharging assemblies must face one another perfectly and be placed as close as possible to each other to ensure maximum inductive coupling and maximum recharging efficiency.
  • the driver must perform several maneuvers to ensure that the two induction recharging assemblies are facing each other correctly and that the battery is recharged quickly and efficiently.
  • fixed induction recharging assemblies generally require more or less invasive ground and/or power grid installation, which makes it difficult to move or reposition this type of recharging system.
  • the size of the fixed induction recharging assembly is generally such as to generate intense electromagnetic fields which, given the gap between the fixed induction recharging assembly and the mobile induction recharging assembly, are poorly directed, i.e. they propagate in space in substantially all directions.
  • the electromagnetic field generated in this way can cause serious problems of electromagnetic compatibility (EMC) in the electronic devices and circuits affected by it, without neglecting the risks to which the human body is subjected, e.g., that of the vehicle user, if subjected for long periods of time to very intense electromagnetic fields that propagate in free field.
  • EMC electromagnetic compatibility
  • the main aim of the present invention is to provide an appliance for induction recharging of high-efficiency electric vehicles which allows the two induction recharging assemblies to be precisely, accurately and automatically centered and juxtaposed in order to improve recharging efficiency.
  • Another object of the present invention is to provide an appliance for induction recharging of high-efficiency electric vehicles which is easy to transport and to reposition according to needs without any special intervention by the user.
  • An additional object of the present invention is to provide an appliance for induction recharging of high-efficiency electric vehicles which confines the propagation of electromagnetic fields within the induction recharging assemblies and avoids these propagating freely in space.
  • Another object of the present invention is to provide an appliance for induction recharging of high-efficiency electric vehicles, which allows overcoming the aforementioned drawbacks of the prior art within the scope of a simple, rational, easy, efficient to use and cost-effective solution.
  • Figure 1 is a general diagram of a first embodiment of the appliance according to the invention.
  • Figure 2 is a top view of a detail of the appliance shown in Figure 1 ;
  • Figure 3 is a side view of the appliance shown in Figure 1 ;
  • Figure 4 is a side view of a detail of the appliance shown in Figure 1 ;
  • Figure 5 is an axonometric view of the detail of the appliance shown in Figure 4.
  • Figure 6 is a general diagram of a second embodiment of the appliance according to the invention.
  • Figure 7 is a top view of a detail of the appliance shown in Figure 6;
  • Figure 8 is a side view of the appliance shown in Figure 1 ;
  • Figure 9 is a side view of a detail of the appliance shown in Figure 6.
  • reference numeral 1 globally indicates an appliance for induction recharging of high-efficiency electric vehicles.
  • the appliance 1 comprises:
  • the electric vehicle 3 comprises a main chassis 7 provided with movement means 8, specifically wheels, for moving the electric vehicle 3 itself and resting it on the ground. Furthermore, the main chassis 7 comprises a lower portion 9 substantially facing the ground.
  • the electric vehicle 3 is composed of an electric car intended for road circulation and the alternating current supply means 6 substantially consist of an electric socket for domestic use.
  • appliance 1 is fitted to different types of electric vehicles, e.g., earthmoving machinery, or wherein the alternating current supply means 6 consist of another power source, e.g., of the type of a socket for industrial use.
  • alternating current supply means 6 consist of another power source, e.g., of the type of a socket for industrial use.
  • the first electromagnetic induction recharging element 4 is fitted onto the lower portion 9 of the electric vehicle 3 and is substantially facing the ground.
  • the appliance 1 comprises automatic positioning means 10 of the second electromagnetic induction recharging element 5 with respect to the first electromagnetic induction recharging element 4, the automatic positioning means 10 being configured to move and position the second electromagnetic induction recharging element 5 in the proximity of the first electromagnetic induction recharging element 4.
  • the automatic positioning means 10 comprise a robot 11 on which the second electromagnetic induction recharging element 5 is fitted.
  • the robot 11 comprises a support frame 12 provided with a lower portion 13 arranged substantially facing the ground and an upper portion 14 substantially opposed the lower portion 13.
  • the support frame 12 has a substantially cylindrical shape and is provided with a flat lower face 13, arranged substantially parallel and facing the ground, and a flat upper face 14, substantially parallel and opposed the flat lower face 13.
  • the robot 11 comprises displacement means 15, in this case a plurality of wheels resting on the ground and associated with the lower portion 13 to allow the displacement of the robot 11 substantially in all directions.
  • the second electromagnetic induction recharging element 5 is connected to the alternating current supply means 6 by means of a power cable 16 associated with the robot 11.
  • the power cable 16 is substantially an extension cable adapted to maintain the connection between the alternating current supply means 6 and the second electromagnetic induction recharging element 5 also when the robot 11 moves away from the alternating current supply means 6.
  • the distance off the ground of the upper portion 14 of the robot 11 is smaller than the distance off the ground of the lower portion 9 of the electric vehicle 3. This way, the robot 11 can move freely underneath the electric vehicle 3 without the risk of becoming trapped.
  • the automatic positioning means 10 comprise at least one fine juxtaposition element 18, configured to precisely juxtapose the second electromagnetic induction recharging element 5 with the first electromagnetic induction recharging element 4.
  • the support frame 12 comprises an opening 17 obtained on the upper portion 14, and the fine juxtaposition element 18 is composed of a telescopic cylinder housed inside the support frame 12 of the robot 11 through the opening 17.
  • the fine juxtaposition element 18 comprises a flat upper portion 19 arranged horizontally.
  • the second electromagnetic induction recharging element 5 is placed in view on the flat upper portion 19 of the fine juxtaposition element 18.
  • the automatic positioning means 10 comprise an optical detection assembly 20 configured to detect the position of the first electromagnetic induction recharging element 4.
  • the optical detection assembly 20 may comprise at least one image detecting camera arranged facing from the upper portion 14 of the robot 11.
  • the automatic positioning means 10 comprise a short-range wireless communication assembly 21 configured to communicate and identify the electric vehicle 3.
  • the wireless communication assembly 21 comprises a first transceiver antenna 22 configured to communicate with a second transceiver antenna 23 fitted onto the electric vehicle 3.
  • the first transceiver antenna 22 and the second transceiver antenna 23 communicate via a short-range communication standard, such as e.g. Bluetooth.
  • a short-range communication standard such as e.g. Bluetooth.
  • radio frequency communication standard used is different.
  • communication can be implemented through a proprietary communication protocol.
  • the appliance 1 comprises a battery charger 24 of the electric charge accumulator 2, the battery charger 24 being provided with at least one input connectable to at least one alternating current supply assembly 25.
  • the battery charger 24 comprises:
  • At least one AC/DC conversion block 26 located inside the external container 39 and provided with at least one input connectable to the alternating current supply assembly 25, the conversion block 26 being configured to convert the voltage applied by the alternating current supply assembly 25;
  • At least one power factor correction unit 27 located inside the external container 39 and provided with at least one input connected downstream of the conversion block
  • the power factor correction unit 27 comprises a first conversion unit 28 which is adapted to perform an AC/DC voltage conversion.
  • the battery charger 24 comprises a second DC/DC conversion unit 29 connected in series to the first conversion unit 28 of the power factor correction unit 27.
  • the first conversion unit 28 is made outside the power factor correction unit 27, e.g. wherein it is a circuit block installed downstream of the power factor correction unit 27.
  • the battery charger 24 is fitted onto the electric vehicle 3 and is electrically connected to the first electromagnetic induction recharging element 4 and to the electric charge accumulator 2.
  • the first electromagnetic induction recharging element 4 is connected at input to the power factor correction unit 27 of the battery charger 24.
  • the first electromagnetic induction recharging element 4 is housed at least partly inside the external container 39 and comprises at least one external portion 40 located outside the external container 39 and connectable in contact with the second electromagnetic induction recharging element 5.
  • the external portion 40 is connected in direct contact with the second electromagnetic induction recharging element 5.
  • the first electromagnetic induction recharging element 4 comprises at least a first ferromagnetic body 36 and at least a first electric conductor 38 wound at the first ferromagnetic body 36 and the second electromagnetic induction recharging element 5 comprises at least a second ferromagnetic body 32 and at least a second electric conductor 35 wound at the second ferromagnetic body 32, the second electromagnetic induction recharging element 5 being configured to produce at least one magnetic field 33 and the first electromagnetic induction recharging element 4 being configured to magnetically couple up with the magnetic field 33.
  • the ferromagnetic body comprises:
  • the external portion 40 comprises two first extremal sections 34 arranged substantially parallel to each other and coming out of the external container 39 as shown in detail in Figure 5.
  • the battery charger 24 is provided with a pair of openings made on the external container 39 so as to allow the first ferromagnetic body 36 to come out of the external container 39 with the first extremal sections 34.
  • the internal portion 41 comprises:
  • first electric conductor 38 is repeatedly wound around the first ferromagnetic section 42 and the conductor element 44 is repeatedly wound around the second ferromagnetic section 43 as shown in figure 5.
  • the internal portion 41 of the first ferromagnetic body 36 can comprise two longitudinal sections substantially parallel to each other and made respectively as an extension of a first extremal section 34 of the external portion 40.
  • first ferromagnetic section 42 and the second ferromagnetic section 43 are interposed between the longitudinal sections and arranged substantially parallel to each other to form a substantially rectangular structure.
  • the second ferromagnetic body 32 comprises two second extremal sections
  • the second electric conductor 35 is repeatedly wound around the second ferromagnetic body 32 as shown in figure 5.
  • the battery charger 24 is associated with the electric vehicle 3 with the first extremal sections 34 substantially overhanging from the vehicle 3 so as to extend towards the ground.
  • the second ferromagnetic body 32 is arranged with the convexity of the "C" facing the ground.
  • the battery charger 24 can be connected directly to the alternating current supply assembly 25 by means of a first connector 30 connected at input to the AC/DC conversion block and a second connector 31 , complementary to the first connector 30 and connected to the alternating current supply assembly 25.
  • the electric charge accumulator 2 can be charged in an alternative way, by manually connecting the first connector 30 to the second connector 31.
  • the alternating current supply assembly 25 substantially consists of an electric socket for home use.
  • the alternating current supply assembly 25 consists of another power source, such as e.g. a socket for industrial use.
  • the operation of the appliance 1 is as follows.
  • the first transceiver antenna 22 of the automatic positioning means 10 communicates with the second transceiver antenna 23 of the electric vehicle 3.
  • the second transceiver antenna 23 communicates to the first transceiver antenna 22 an identification code of the electric vehicle 3.
  • the automatic positioning means 10 recognize the electric vehicle 3 as a vehicle to be recharged and start operating.
  • the robot 11 approaches the electric vehicle 3 to recharge the electric charge accumulator 2.
  • the optical detection assembly 20 allows the automatic positioning means 10 to detect the position of the electric vehicle 3 and to guide the robot 11 below the lower portion 9.
  • the optical detection assembly 20 can be configured to detect a specific identification reference applicable at or in the proximity of the first electromagnetic induction recharging element 4.
  • the optical detection assembly 20 detects the position of the first electromagnetic induction recharging element 4 and allows the second electromagnetic induction recharging element 5 to be precisely positioned below the first electromagnetic induction recharging element 4, each facing the other.
  • the first electromagnetic induction recharging element 4 and the second electromagnetic induction recharging element 5 are placed side by side by means of the fine juxtaposition element 18.
  • the flat upper portion 19 of the telescopic cylinder rises above the flat upper portion 14 of the robot 11 and moves closer to the electric vehicle 3 until it is juxtaposed with the lower portion 9 at the first electromagnetic induction recharging element 4.
  • first extremal sections 34 of the first ferromagnetic body 36 are brought precisely into contact with the second extremal sections 37 of the second ferromagnetic body 32.
  • the direct contact between the first extremal sections 34 and the second extremal sections 37 allows maximizing the transfer of energy between the first electromagnetic induction recharging element 4 and the second electromagnetic induction recharging element 5 and consequently improving the recharging efficiency of the electric charge accumulator 2.
  • first ferromagnetic body 36 and the second ferromagnetic body 32 form a substantially closed body with a substantially "8" shape as shown in figure 4.
  • each winding of the second electric conductor 35 around the second ferromagnetic body 32 produces a magnetic field 33 which is added to that generated by the adjacent windings and extends outside the flat upper portion 19 and inside the external portion 40 of the first ferromagnetic body 36.
  • the field lines formed by the magnetic field 33 formed in this way are closed in passing through the first ferromagnetic section 42 and the second ferromagnetic section 43.
  • the magnetic field 33 passes through the windings of the first electric conductor 38 and, in particular, through the windings of the conductor element 44 in which it produces an induced electromotive force (e.m.f.) for recharging the electric charge accumulator 2.
  • first electromagnetic induction recharging element 4 and the second electromagnetic induction recharging element 5 form a transformer in which the primary winding is defined by the second electric conductor 35 and the secondary winding is defined by the conductor element 44.
  • the first electromagnetic induction recharging element 4 also forms a transformer in which the primary winding is defined by the first electric conductor 38 and the secondary winding is defined by the conductor element 44.
  • the first electric conductor 38 and the conductor element 44 are connected at input to the power factor correction unit 27 which carries out an AC/DC conversion of the induced e.m.f. through the first conversion unit 28 and corrects the power factor.
  • the second conversion unit 29 After the AC/DC conversion, the second conversion unit 29 performs a DC/DC conversion in order to obtain the voltage value necessary to charge the electric charge accumulator 2.
  • the second transceiver antenna 23 of the electric vehicle 3 communicates to the first transceiver antenna 22 of the automatic positioning means 10 that recharging has terminated.
  • the fine juxtaposition element 18 moves away from the lower portion 9 of the electric vehicle 3 and returns inside the support frame 12 with the flat upper portion 19 arranged substantially coplanar to the flat upper face 14 of the robot 11.
  • the robot 11 moves through the displacement means 15 away from the electric vehicle 3 so as not to be a hindrance to the starting and displacing of the electric vehicle 3. More specifically, the automatic positioning means 10 use the optical detection assembly 20 to determine the position of the robot 11 and ensure that it is not below the electric vehicle 3 when the latter is started.
  • a further embodiment is shown in the figures from 6 to 9.
  • This embodiment differs from the previous one in terms of the arrangement of the first electromagnetic induction recharging element 4 and in the shape of the first ferromagnetic body 36.
  • the first electromagnetic induction recharging element 4 is fitted on the electric vehicle 3 and is located outside the external container 39 of the battery charger 24. More specifically, with reference to figure 9, the first electromagnetic induction recharging element 4 is fitted on the electric vehicle 3 with the first ferromagnetic body 36 arranged in the proximity of the lower portion 9.
  • the first ferromagnetic body 36 is made with a "C" shape, substantially identical to the shape of the second ferromagnetic body 32, and is turned with the concavity of the "C" towards the ground.
  • the first electromagnetic induction recharging element 4 comprises only the first electric conductor 38 repeatedly wound around the first ferromagnetic body 36.
  • the juxtaposition of the second ferromagnetic body 32 to the first ferromagnetic body 36 is made easier, since the second electromagnetic induction recharging element 5 and the first electromagnetic induction recharging element 4 face the flat upper portion 19 and the lower portion 9 respectively, the juxtaposition of which is relatively simple.
  • An additional embodiment of the appliance 1 not shown in the drawing tables consists in making the fine juxtaposition element 18 with a projection of fixed length which extends starting from the flat upper portion 19 of the robot 11.
  • the second electromagnetic induction recharging element 5 is arranged at a height above the ground which is greater than the height of the lower portion 9 of the electric vehicle 3.
  • the first electromagnetic induction recharging element 4 is mounted laterally to the electric vehicle 3 at a height above the ground substantially identical to the height above the ground of the flat upper portion 19.
  • first electromagnetic induction recharging element 4 and the second electromagnetic induction recharging element 5 are arranged in such a way as to orient the concavity of the "C" shape of the first ferromagnetic body 36 and of the second ferromagnetic body 32 substantially to the side and facing towards the outside of the electric vehicle 3 and of the fine juxtaposition element 18.
  • Each of the previously described embodiments does not rule out the recharging of the electric charge accumulator 2 without the use of the robot 11, by connecting the first connector 30 to the second connector 31 or, in other words, substantially by connecting the electric charge accumulator 2 to the alternating current supply assembly 25.
  • the conversion block 26 of the battery charger 24 performs an AC/DC conversion of the voltage supplied at input by the alternating current supply assembly 25.
  • the output voltage from the conversion block 26 enters at input the second conversion unit 29, which performs a DC/DC conversion in such a way as to obtain the voltage value necessary to charge the electric charge accumulator 2.
  • the recharging of the electric charge accumulator 2 is carried out in an alternative way by manually connecting the first connector 30 to the second connector 31.
  • the automatic positioning means make it possible to facilitate the parking operations of the electric vehicle, since the first electromagnetic induction recharging element and the second electromagnetic induction recharging element face each other automatically.
  • the fine juxtaposition element and the outer portion of the first ferromagnetic body make possible the direct contact of the first electromagnetic induction recharging element with the second electromagnetic induction recharging element, thus significantly increasing the recharging efficiency of the electric charge accumulator.
  • the positioning accuracy ensured by the automatic positioning means makes it possible to make a robot of small dimensions which makes the recharging appliance substantially portable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention concerne un appareil (1) permettant de recharger des véhicules électriques à haut rendement qui comprend : un accumulateur de charge électrique (2) monté sur un véhicule électrique (3) ; un premier élément de recharge par induction électromagnétique (4) permettant de charger l'accumulateur de charge électrique (2), le premier élément de recharge par induction électromagnétique (4) étant monté sur le véhicule électrique (3) et associé à l'accumulateur de charge électrique (2) ; un second élément de recharge par induction électromagnétique (5) connecté à des moyens d'alimentation en courant alternatif (6), le second élément de recharge par induction électromagnétique (5) étant configuré pour fonctionner conjointement avec le premier élément de recharge par induction électromagnétique (4) pour recharger l'accumulateur de charge électrique (2) ; des moyens de positionnement automatique (10) du second élément de recharge par induction électromagnétique (5) par rapport au premier élément de recharge par induction électromagnétique (4), les moyens de positionnement automatique (10) étant configurés pour déplacer et positionner le second élément de recharge par induction électromagnétique (5) à proximité du premier élément de recharge par induction électromagnétique (4).
PCT/IB2018/058249 2017-10-24 2018-10-23 Appareil de recharge par induction de véhicules électriques à haut rendement Ceased WO2019082076A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880078462.1A CN111542984B (zh) 2017-10-24 2018-10-23 高效电动车的感应再充电装置
EP18807116.1A EP3701618A1 (fr) 2017-10-24 2018-10-23 Appareil de recharge par induction de véhicules électriques à haut rendement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102017000120754 2017-10-24
IT102017000120754A IT201700120754A1 (it) 2017-10-24 2017-10-24 Apparecchiatura per la ricarica a induzione di veicoli elettrici ad alto rendimento

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Publication Number Publication Date
WO2019082076A1 true WO2019082076A1 (fr) 2019-05-02

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PCT/IB2018/058249 Ceased WO2019082076A1 (fr) 2017-10-24 2018-10-23 Appareil de recharge par induction de véhicules électriques à haut rendement

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EP (1) EP3701618A1 (fr)
CN (1) CN111542984B (fr)
IT (1) IT201700120754A1 (fr)
WO (1) WO2019082076A1 (fr)

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US11485246B1 (en) 2021-04-05 2022-11-01 Arnold Chase Individualized vehicular charging mat
US11584240B2 (en) 2017-04-19 2023-02-21 Arnold Chase Intelligent vehicle charging station
US12024039B2 (en) 2021-12-07 2024-07-02 Arnold Chase Vehicle self-centered charging system
FR3144562A1 (fr) * 2023-01-03 2024-07-05 Psa Automobiles Sa Ensemble d’un véhicule électrifié et d’un robot chargeur mobile à induction magnétique

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WO2013019122A1 (fr) * 2011-07-08 2013-02-07 Auckland Uniservices Limited Interopérabilité de structures magnétiques pour systèmes de transfert d'énergie par induction
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US11485246B1 (en) 2021-04-05 2022-11-01 Arnold Chase Individualized vehicular charging mat
US12024039B2 (en) 2021-12-07 2024-07-02 Arnold Chase Vehicle self-centered charging system
FR3144562A1 (fr) * 2023-01-03 2024-07-05 Psa Automobiles Sa Ensemble d’un véhicule électrifié et d’un robot chargeur mobile à induction magnétique

Also Published As

Publication number Publication date
CN111542984A (zh) 2020-08-14
EP3701618A1 (fr) 2020-09-02
CN111542984B (zh) 2024-09-24
IT201700120754A1 (it) 2019-04-24

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