WO2022197083A1 - Plot d'alimentation en énergie sans fil fixe/mobile, et plot de collecte d'énergie sans fil et régulateur pouvant être montés dans n'importe quel espace d'un véhicule - Google Patents

Plot d'alimentation en énergie sans fil fixe/mobile, et plot de collecte d'énergie sans fil et régulateur pouvant être montés dans n'importe quel espace d'un véhicule Download PDF

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Publication number
WO2022197083A1
WO2022197083A1 PCT/KR2022/003649 KR2022003649W WO2022197083A1 WO 2022197083 A1 WO2022197083 A1 WO 2022197083A1 KR 2022003649 W KR2022003649 W KR 2022003649W WO 2022197083 A1 WO2022197083 A1 WO 2022197083A1
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WIPO (PCT)
Prior art keywords
pad
feeding
coil
wireless
vehicle
Prior art date
Application number
PCT/KR2022/003649
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English (en)
Korean (ko)
Inventor
홍순만
조동호
정구호
Original Assignee
주식회사 와이파워원
한국과학기술원
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.)
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Publication date
Priority claimed from KR1020210096446A external-priority patent/KR102636472B1/ko
Application filed by 주식회사 와이파워원, 한국과학기술원 filed Critical 주식회사 와이파워원
Publication of WO2022197083A1 publication Critical patent/WO2022197083A1/fr

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    • 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
    • B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • 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
    • 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting 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
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment

Definitions

  • the present invention relates to a fixed/mobile wireless power supply pad and a wireless current collecting pad and regulator that can be installed in any space of a vehicle, and more particularly, to a stationary in a parking lot vehicle stopper or under a vehicle stopper when wireless charging while stationary.
  • a wireless power supply pad that can be installed or moved, installed or fixed at the back of a parking lot, and a wireless power collecting pad that can be installed in various spaces such as the front, center, and rear parts of the vehicle as well as trunk doors, front and rear doors, front and rear bumpers, and roofs; it's about the regulator
  • the wireless power supply pad installed under the road which has been proposed in the past, is very expensive and difficult to install, and once installed, the wireless charging slot in the parking lot is fixed, There was a problem in that it could not respond flexibly, and could not provide effective charging for many vehicles that want to be wirelessly charged.
  • the present invention was devised to solve such a problem, and by installing the wireless power supply pad fixedly in or under the parking lot vehicle stopper, fixing it on the back of the parking lot, or disposing it in a movable state, the installation work of the wireless power supply pad
  • the purpose is to significantly reduce the cost and maintenance cost.
  • the wireless feed pad is built into, installed under the vehicle detent, or installed so that it can be moved forward or rearward between the detents or next to the detent, it is attached to the wireless feed pad and the lower front or rear part of the vehicle. It is easy to align the alignment of the wireless current collecting pad, which can increase capacity and efficiency.
  • charging can be flexibly performed by moving the wireless power supply pad.
  • the purpose is to solve the heat problem when there is metal on the power supply pad, the safety problem when living things enter, and the power supply alignment problem of the charging vehicle. have.
  • the wireless power collecting pad can be installed on the trunk door, trunk floor, front and rear bumpers, front and rear doors, and roof as well as the front, center, and second half of the lower part of the existing wired charging electric vehicle, so that charging convenience for electric vehicles is improved.
  • Another objective is to solve the problem of wireless charging of electric vehicles and contribute to the spread of electric vehicles by improving the safety of avoiding damage caused by road bumps and charging compatibility for various electric vehicles.
  • the fixed wireless power feeding pad includes a multi-turn power feeding coil through which a current supplied from an inverter flows (hereinafter referred to as a 'feeding coil'); a ferrite core provided on the bottom or bottom and side surfaces of the feeding coil to direct power transmission by magnetic field to the wireless current collecting pad; vehicle detents protruding above the ground (hereinafter referred to as 'stops'); And, by estimating the location of the wireless current collecting pad based on the amount of change in the load of each feeding coil, selecting one or more specific feeding coils among a plurality of feeding coils or adjusting the current phase of each feeding coil to form a magnetic field beam a control unit, wherein the feeding coil and the ferrite core are built into the stopper, or installed on or around the lower portion of the stopper, or in connection with the stopper. Installed in a slidable structure. .
  • the fixed wireless power feeding pad may further include a spacing adjusting device installed for each charging and parking slot to minimize the distance between the wireless power feeding pad and the wireless power collecting pad.
  • the spacing adjusting device may include a direct current or alternating current power source; an electromagnet driven by the power source; and a feeding coil position adjusting unit for moving the position of the feeding coil to be closer to the current collecting coil by driving the electromagnet, wherein the feeding coil position adjusting unit includes an iron or permanent located on one side or both sides of the magnetic pole of the electromagnet.
  • a magnet may be provided.
  • the spacing adjusting device may include an elastic part for moving the power feeding coil from the lower end of the power feeding coil to be closer to the current collecting coil at the upper side.
  • the spacing adjusting device includes: a protrusion protruding from the slope of the stopper; and an arm having one end connected to the protrusion and the other end connected to the power supply coil support, wherein the protrusion is pushed into the stopper when pressure of a vehicle wheel is applied to the arm. and pushes up the feed coil support part by the arm, so that the feed coil support part pushes up the feed coil at its upper end.
  • the fixed wireless feeding pad may include a capacitor for LC resonance inside the stopper.
  • the fixed wireless power feeding pad may include a capacitor for LC resonance under the detent or under the ground surface around the detent.
  • the stopper may have at least one of a '-' shape, a ' ⁇ ' shape, a ' ⁇ ' shape, a '+' shape, a 'T' shape, and a ' ⁇ ' shape.
  • the detent When the detent is the '-' shape, the detent may be a detent (hereinafter referred to as an 'integrated detent') in a straight line from the contact portion of the left wheel of the vehicle to the contact portion of the right wheel.
  • an 'integrated detent' a detent in a straight line from the contact portion of the left wheel of the vehicle to the contact portion of the right wheel.
  • the detent When the detent has the '-' shape, the detent may be a detent (hereinafter referred to as a 'separable detent') in which the left wheel contact part and the right wheel contact part are separated.
  • a 'separable detent' a detent in which the left wheel contact part and the right wheel contact part are separated.
  • the ' ⁇ '-shaped detent and the ' ⁇ '-shaped detent include a pair of a ' ⁇ '-shaped detent and a ' ⁇ '-shaped detent, or a single ' ⁇ '-shaped detent, or ' ⁇ ' It may consist of a single shaped detent.
  • the feeding coil may form a plurality of multi-turn coil loops or one multi-turn coil loop.
  • It may further include one or more cameras or one or more sensors for determining whether a metal is present on the feeding pad, whether a living organism enters the feeding area, or an alignment for charging the charging vehicle.
  • the camera or sensor is mounted on the stopper when the inverter is provided integrally with the fixed wireless power supply pad, and is mounted on the stopper when the inverter is provided separately from the fixed wireless feed pad, Alternatively, it may be mounted on or around the inverter.
  • the fixed wireless feeding pad may further include an inverter for supplying current to the feeding coil, wherein the inverter is integrally formed with the feeding coil and the ferrite core. It may be provided separately from the feed coil, the ferrite core and the stopper.
  • the power supply coil and the ferrite core are installed to be slidable in connection with the detent, when the wheel of the vehicle comes into contact with the detent, the power supply coil and the ferrite core are matched to the wireless current collecting pad of the vehicle. , can be controlled to slide forward or backward.
  • the mobile wireless power feeding pad includes a plurality of multi-turn power feeding coils (hereinafter referred to as 'feeding coils') through which current supplied from the inverter flows; a ferrite core provided on the bottom surface, or bottom and side surfaces of the plurality of feeding coils to direct power transmission by a magnetic field to a wireless current collecting pad; a control unit configured to select a multi-coil by estimating a position of a wireless current collecting pad based on a load variation of each power supply coil or to form a magnetic field beam by adjusting a current phase of each multi-coil; and a transfer device for moving the feed coil and the ferrite core.
  • 'feeding coils' multi-turn power feeding coils
  • the transfer device transfers the movable wireless power feeding pad to the position where the wireless power collecting pad is located, front, rear, left, right, or the upper or lower part of the vehicle, and converts it horizontally or vertically so as to be parallel to the wireless power collecting device. Sorting function can be performed.
  • the mobile wireless feeding pad may further include one or more cameras or one or more sensors for determining whether a metal is present on the feeding pad, whether a living organism enters the feeding area, or an alignment for charging a charging vehicle.
  • the camera or sensor is provided on the mobile wireless power feeding pad when the inverter is integrated with the mobile wireless power feeding pad, or around the inverter or the inverter when the inverter is provided separately from the mobile wireless power feeding pad Alternatively, it may be mounted inside a mobile wireless feeding pad.
  • the mobile wireless feeding pad may further include an inverter for supplying current to the feeding coil, wherein the inverter may be provided integrally with the feeding coil and the ferrite core, or provided separately from the feeding coil and the ferrite core.
  • the wireless current collecting pad is provided on the upper surface, or upper and side surfaces of a plurality of multi-turn current collecting coils (hereinafter referred to as 'collecting coil'), and is transmitted from the wireless power collecting pad.
  • a ferrite core serving to effectively receive a magnetic field
  • a plurality of current collecting coils through which an induced current by the power received from the wireless feeding pad flows
  • a control unit configured to select a multi-coil by estimating the position of the wireless power feeding pad based on a voltage or current value induced in each current collecting coil or to form a receiving magnetic field beam by adjusting the current phase of each multi-coil.
  • the wireless current collecting pad may further include a detachable unit detachable at one or more positions of front and rear bumpers, left and right doors, a trunk door, a front/middle/rear portion of the vehicle lower portion, and a roof of the vehicle.
  • the cost of installing the wireless power feeding pad and the maintenance cost can be significantly reduced by installing the wireless power feeding pad in the stopping sill of the parking vehicle, installing it under, or disposing it in a movable state without being fixedly installed.
  • the wireless feed pad is built into, installed under the vehicle detent, or installed so that it can be moved forward or rearward between the detents or next to the detent, it is attached to the wireless feed pad and the lower front or rear part of the vehicle. It is easy to align the alignment of the wireless current collecting pad, which can increase capacity and efficiency.
  • charging can be flexibly performed by moving the wireless power supply pad.
  • the wireless power collecting pad can be installed on the trunk door, trunk floor, front and rear bumper, front and rear doors or roof as well as the lower front, center, and second half of existing electric vehicles, so that charging convenience for electric vehicles and road bumps is possible.
  • the wireless power collecting pad can be installed on the trunk door, trunk floor, front and rear bumper, front and rear doors or roof as well as the lower front, center, and second half of existing electric vehicles, so that charging convenience for electric vehicles and road bumps is possible.
  • FIG. 1 is a conceptual diagram of charging an electric vehicle in a wireless charging method using a fixed/mobile wireless power supply pad and a wireless current collecting pad that can be installed in any space of the vehicle.
  • FIG. 2 is a conceptual diagram of automatic alignment and wireless charging by a wireless power supply pad embedded in a vehicle stopper or installed under the vehicle stopper and a wireless power collecting pad installed in the first half or second half of the vehicle lower part.
  • FIG. 3 is a block diagram of a fixed/movable wireless feeding pad of the present invention.
  • FIG. 4 is a configuration diagram of a built-in wireless power feeding pad installed so that a power feeding coil and a ferrite core are embedded in a vehicle stopper;
  • FIG. 5 is a configuration diagram of a lower-type wireless power feeding pad in which a feeding coil and a ferrite core are installed under a vehicle stopper;
  • FIG. 6 is a configuration diagram of a built-in built-in wireless power feeding pad with a capacitor.
  • FIG. 7 is a configuration diagram of a built-in/stair-type wireless feeding pad.
  • FIG. 8 is a configuration diagram of a capacitor-integrated built-in/stair-type wireless power supply pad.
  • FIG. 9 is a configuration diagram of a wireless power feeding pad having a power feeding coil forming one loop over the entire vehicle stopper;
  • FIG. 10 is a view showing an embodiment when the wireless power feeding pad is installed in a form that can be matched with the wireless power collecting pad by sliding forward or backward by detecting a detent contact;
  • FIG. 11 is a configuration diagram of a wireless current collecting pad that can be mounted in an arbitrary space of a vehicle.
  • FIG. 12 is a view illustrating embodiments of an apparatus for adjusting a separation distance between a wireless power feeding pad and a wireless power collecting pad using a vehicle stopper;
  • FIG. 13 is a diagram illustrating other embodiments of an apparatus for adjusting a separation distance between a wireless power feeding pad and a wireless power collecting pad using a vehicle stopper;
  • FIG. 14 is a diagram illustrating another embodiment of an apparatus for adjusting a separation distance between a wireless power feeding pad and a wireless power collecting pad using a vehicle stopper;
  • FIG. 15 is a diagram illustrating another embodiment of an apparatus for adjusting a separation distance between a wireless power feeding pad and a wireless power collecting pad using a vehicle stopper;
  • 16 is a view showing an embodiment in which a wireless current collecting pad is installed at the rear of a vehicle
  • FIG. 1 is a conceptual diagram of charging an electric vehicle 20 in a wireless charging method using fixed/mobile wireless power feeding pads 100 and 200 and a wireless power collecting pad that can be installed in any space of the vehicle.
  • the fixed wireless power supply pad 100 is connected to the inverter 10 and is fixed to the rear of the parking, so that when the front of the electric vehicle is parked, it is possible to charge the lower part of the front through the front or vertical and horizontal conversion, and when the rear is parked, the rear or vertical horizontal conversion is possible. It is possible to charge the lower part of the back through the In this case, the distance between the wireless power feeding pad 100 and the wireless power collecting pad is reduced or closely adhered to improve capacity efficiency and block EMI and EMF.
  • the fixed wireless feeding pad 100 is a plurality of multi-turn power feeding coils (hereinafter referred to as 'feeding coils') through which the current supplied from the inverter flows, the bottom of the feeding coil, or the bottom and side surfaces. It is provided with a ferrite core that serves to direct power transfer by magnetic field to the wireless current collecting pad, and estimates the location of the wireless current collecting pad based on the amount of change in the load of each power supply coil, thereby estimating a specific power supply of one or more of the plurality of power supply coils. and a control unit for selecting a coil or adjusting a current phase of each power supply coil to form a magnetic field beam.
  • 'feeding coils' multi-turn power feeding coils
  • the mobile wireless feeding pad 200 is connected to the inverter 10 and is fixed or can be moved automatically or manually.
  • the mobile wireless feeding pad 200 is a plurality of multi-turn power feeding coils (hereinafter referred to as 'feeding coils') through which the current supplied from the inverter flows, the bottom of the plurality of feeding coils, or the bottom and side surfaces.
  • a ferrite core that serves to direct the power transfer by magnetic field to the wireless current collecting pad, and estimating the location of the wireless current collecting pad based on the amount of change in the load of each power supply coil to select a multi-coil or to select a multi-coil current
  • This transfer device transfers the mobile wireless power feeding pad 200 according to the position of the wireless current collecting pad attached to the vehicle so that the power feeding coil and the ferrite core are aligned for charging to the corresponding wireless current collecting pad, that is, for this purpose It performs the function of moving the vehicle forward, backward, left, right, top, and bottom and aligning it with the wireless current collector by vertically and horizontally switching.
  • the movable wireless power feeding pad 200 can be moved to the lower part of the vehicle.
  • a device such as a lift is provided Movement to the top of the vehicle is also possible.
  • the mobile wireless power feeding device 200 moves to the corresponding position, and the wireless current collector You can also perform posture changes in parallel with
  • the wireless power collecting pad is mounted side by side on the side door of the vehicle as described above, if the mobile wireless power feeding pad 200 has a flat shape parallel to the ground, the mobile wireless power feeding pad moves to the corresponding side, Charging may be performed after changing the posture vertically so that it is parallel to the corresponding wireless current collecting pad.
  • the wireless power collecting pad is mounted flat on the lower part of the vehicle, if the mobile wireless power feeding pad 200 is vertically erected on the ground, the mobile wireless power feeding pad 200 moves to the lower part of the vehicle, It can also be charged after changing the posture horizontally so that it is parallel to the pad.
  • the distance between the wireless power feeding pad 200 and the wireless power collecting pad is reduced or closely adhered to improve capacity efficiency and block EMI and EMF.
  • the wireless current collecting pad is provided on, or on the upper and side surfaces of, a plurality of multi-turn current collecting coils (hereinafter referred to as 'collecting coil') to effectively receive the magnetic field transmitted from the wireless power collecting pad.
  • a ferrite core a plurality of current collecting coils through which an induced current by the power received from the wireless feeding pad flows; and a control unit configured to select a multi-coil by estimating the position of the wireless power feeding pad based on a voltage or current value induced in each current collecting coil or to form a receiving magnetic field beam by adjusting the current phase of each multi-coil.
  • FIG. 2 is a conceptual diagram of automatic alignment and wireless charging using a wireless power supply pad built into the vehicle detent or installed under the vehicle detent and a wireless power collecting pad installed in the first or second half of the vehicle.
  • the wireless feed pad is built inside or under the vehicle's detent and the wireless power collecting pad is installed in the lower half of the vehicle, if you reverse the vehicle from the parking lot and park it in close contact with the vehicle's detent, regardless of the type of vehicle, the wireless feed pad and It shows that the wireless power collecting pad is automatically aligned well, eliminating the problem of alignment between the existing power feeding pad and the current collecting pad, and wireless charging can be done well. Even if the wireless power collecting pad is installed in the first half of the lower part of the vehicle, if it is parked properly in close contact with the vehicle's stopper, the wireless power feeding pad and the wireless power collecting pad are automatically aligned and wireless charging can be performed well.
  • FIG. 2 is a view showing an embodiment of a form (hereinafter referred to as a 'separate type') in which the vehicle stopper is formed to be caught on each of the left and right wheels of the vehicle.
  • a form in which the vehicle detents are not separated and formed as one from the left wheel to the right wheel (hereinafter referred to as an 'integrated type') is also possible, and the shape of each detent is also possible. Examples of various types of such a vehicle stopper will be described later with reference to FIGS. 4 to 8 .
  • the feeding coil may be provided to be built-in inside such a stopper (hereinafter referred to as 'built-in type'), or it may be provided under the ground below the stopper or around the bottom of the ground below the stopper (hereinafter referred to as a 'lower type'), so that This will be described later by comparing FIGS. 4 and 5 .
  • the ferrite core in the case of the built-in type as shown in FIG. 4 , may be attached to the inside of the stopper 400 or formed at a distance from the stopper 400 on the inside of the stopper 400 , the lower part as shown in FIG. In the case of the mold, it may be formed under the ground 30 as shown.
  • a plurality of circular multi-turn coils may be disposed adjacent to each other, and this embodiment is shown in FIGS. 3 to 8 .
  • a multi-turn type in which the feeding coil forms one loop over the entire stopper is also possible, which will be described later with reference to FIG. 9 .
  • Figure 3 is a block diagram of the fixed type 100 / movable type 200 wireless power feeding pad of the present invention.
  • the fixed/movable wireless feeding pad may include a plurality of feeding coils (referred to as 110 and 210).
  • the ferrite cores 120 and 220 are provided on the back and side surfaces so that the wireless power supplied to the wireless current collecting pad is directed to the front, and EMI and EMF are prevented from being radiated to the outside.
  • the plurality of feeding coils 110 and 210 may be configured as a single layer, as shown in FIG. 3, or may be configured as an overlapping layer.
  • the movable wireless power feeding pad 200 may be converted horizontally as described above so that the ferrite core faces downward.
  • the mobile wireless power feeding pad 200 is automatically or manually moved to the position where the wireless current collecting pad is located, forward, rearward, left, right, or the upper and lower parts of the vehicle, and is parallel to the wireless current collecting device. It can be switched horizontally or vertically, automatically or manually to align.
  • the spatial position of the wireless power collecting pad of the vehicle 20 is estimated, and a specific feeding coil of the wireless feeding pad is selected or By adjusting the phase value of the current flowing in the feeding coil of each wireless feeding pad, the magnetic field beam of the fixed/moving wireless feeding pad is accurately directed to the wireless power collecting pad, improving power efficiency, and reducing the amount of EMI and EMF radiation.
  • FIG. 4 is a configuration diagram of a built-in wireless feeding pad installed so that a feeding coil and a ferrite core are embedded in the vehicle stopper 400
  • FIG. 5 is a configuration of a lower type wireless feeding pad installed with a feeding coil and a ferrite core under the vehicle stopper. it is do
  • the multi-turn power feeding coil or current collecting coil as shown in FIG. 3 is illustrated as a single circle for convenience.
  • '-', ' ⁇ ', ' ⁇ ', '+', and 'T' shapes are shown.
  • a ' ⁇ '-shaped stopper is also possible.
  • the ' ⁇ ' shape indicates a shape in which the central part protrudes forward.
  • a single feed coil or multiple feed coils are built into the vehicle stopper 400 (FIG. 4) or installed in the lower part of the stopper 400, that is, under the ground (FIG.
  • the gap between the feed coil and the current collector coil This is made small or, if necessary, the number of turns of the feeding coil of the wireless feeding pad is maximized within the possible range
  • the feeding coil is shown on the upper surface of the stopper 400 for convenience, but in reality It is located inside the stopper 400.
  • the ferrite core 120 is used on the bottom, or the bottom and side surfaces of the power supply coil 110 so that the magnetic field is directed upward with the current collecting coil of the vehicle, and EMI and EMF are released to the outside. block radiation.
  • the ferrite core 120 when the ferrite core 120 is used on the side surface of the feeding coil 110 , the ferrite core is in close contact with the inner side of the stopper 400 , or the inner side of the side of the stopper 400 . It can be installed at some distance from the
  • the ferrite core is used on the underside, or the bottom and side surfaces of the power feeding coil 110 so that the magnetic field is directed upward with the current collecting coil of the vehicle.
  • the ferrite core is installed below the ground.
  • the wireless power supply pad installed under the detent of the vehicle is made larger than the wireless power supply pad with a built-in detent to facilitate alignment and allow wider front and rear, left and right deviations.
  • the feeding coil 110 of the lower-type wireless power feeding pad may be installed only under the lower portion of the vehicle stopper 400, or as shown in FIG. 5, the lower portion of the vehicle stopper 400 and the stopper 400 ) may be installed so as to span a little on the periphery, or may be configured to be additionally installed in the lower portion of the vehicle stopper 400 and the lower portion around the stopper 400 .
  • a 'collecting coil' a plurality of multi-turn current collecting coils (hereinafter referred to as a 'collecting coil') are provided, and are provided on the upper surface of the collecting coil, or on the upper and side surfaces of the lower wireless power collecting coil. It has a ferrite core that serves to effectively receive the magnetic field transmitted from the feeding pad.
  • the built-in wireless feeding pad or lower wireless feeding pad 100 uses a material that is not damaged even by a significant impact, and performs a function of stopping the car and aligning the wireless feeding pad 100 and the wireless power collecting pad 300 well. Detachable or integrated detents can be designed to do this.
  • FIGS. 4 and 5 show an 'integrated' detent connected in a line from the left wheel contact portion to the right wheel contact portion of the vehicle when the vehicle enters, but the left wheel contact portion and the right It may be configured in the form of a detent in which the wheel contact portion is separated.
  • a 'removable' detent is shown in FIG. 2 .
  • 2 shows a 'separate type' shape of the stopper in the form of FIGS. 4 and 5 (a), and the stopper in the form of FIGS. 4 and 5 (b) may also be configured as a detachable type in this way.
  • FIGS. 4 and 5 are provided as a pair, for example, (c) is a left wheel, (d) can be configured to act as a stopper for the right wheel. Alternatively, (c) or (d) alone may constitute the stopper, and in each case, the horizontal or vertical length may be appropriately determined and configured.
  • the built-in wireless power feeding pad and the lower type wireless feeding pad 100 estimate the spatial location of the wireless power collecting pad 300 of the vehicle based on the load change amount of the plurality of power feeding coils 110 to select the required feeding coils or feed each power supply. By adjusting the phase value of the current flowing through the coil 110, the magnetic field beam of the wireless power feeding pad 100 accurately directs the wireless current collecting pad 300 to increase capacity and efficiency and reduce EMI and EMF radiation.
  • FIG. 6 is a configuration diagram of a capacitor-integrated built-in wireless power supply pad.
  • the feeding capacitor 140 is used for LC resonance.
  • an integrated module in which the feed capacitor 140 is attached to the built-in wireless feed pad as shown in FIG. 6 or 8 is used, and a detent of a small size is used.
  • the power feeding capacitor 140 is separated from the wireless feeding pad and built into the inverter ( FIGS. 4 , 5 , and 7 ), and a structure for separating the wireless feeding pad and the feeding capacitor is used.
  • FIGS. 6 (a) and 6 (b) can also be configured as an integrated or separate type, and also in FIGS. 4 and 5
  • FIGS. 6(c) and 6(d) can also be configured as an integrated or separate type, and also in FIGS. 4 and 5
  • either of FIGS. 6(c) and 6(d) may be installed as a pair, or only one of FIGS. may be
  • FIG. 4 which is a built-in wireless feeding pad
  • FIG. 5 which is a lower type wireless feeding pad
  • (a), (b), (c), (d), (e) of FIG. 6 which is a built-in wireless feeding pad are also the same, respectively. It can also be configured as a lower-type wireless feeding pad in the form of a detent.
  • FIG. 7 is a configuration diagram of a built-in/stair-type wireless power feeding pad
  • FIG. 8 is a configuration diagram of a capacitor-integrated built-in/stair-type wireless feeding pad.
  • FIG. 8 is a capacitor-integrated built-in wireless power feeding pad to which a power feeding capacitor for LC resonance is attached in each case of FIG. 7 .
  • FIGS. 7 (a) and 7 (b) can also be configured as an integrated or separate type
  • FIGS. 8 (a) and 8 (b) It is also possible to configure as an integrated type or a separate type.
  • FIGS. 7 (c) and 7 (d) are also installed as a pair, or FIGS. 6 (c) or 6 (d) ) may be installed as only one
  • FIGS. 8(c) and 8(d) may also be installed as a pair, or only one of FIGS. 8(c) or 8(d) may be installed.
  • FIG. 4 which is a built-in wireless feeding pad
  • FIG. 5 which is a lower type wireless feeding pad
  • (a), (b), (c), (d), and (e) of FIG. 7 which is a built-in wireless feeding pad
  • It can also be configured as a lower-type wireless feeding pad in the form of a detent, and (a), (b), (c), (d), (e) of FIG. It can also be configured.
  • FIG. 9 is a configuration diagram of a wireless power feeding pad having a power feeding coil forming a single loop over the entire vehicle stopper 400 .
  • the feeding coil of FIG. 9 may also be configured as a multi-turn feeding coil, but unlike FIGS. 4 to 8 having a plurality of circular loops, FIG. An embodiment of a feed coil forming a loop is shown.
  • This one-loop feeding coil can also be applied to any wireless feeding pad such as the wireless feeding pad of FIGS. 4 to 8 and its derivative wireless feeding pad, that is, integrated/integrated, built-in/lower type, and capacitor integrated type .
  • one or more cameras are installed on the various feeding pads of FIGS. 4 to 9, and using AI technology, it is checked whether coins or various metal fittings are placed on the feeding pad to ensure heat safety during charging. It is possible to solve the problem, solve the safety problem of living things by detecting human hands or living creatures entering on the feeding pad, and to facilitate the alignment of the feeding and collecting pads by showing the feeding pad to the driver.
  • one or more various sensors other than a camera may be provided in order to determine whether a metal is present on the power supply pad, whether a living organism enters the power supply area, or an alignment for charging the charging vehicle.
  • the camera 130 illustrated in FIGS. 4 to 9 may be replaced with the aforementioned sensor.
  • Such a camera or sensor may be installed on the fixed wireless feeding pad 100 and the mobile wireless feeding pad 200 .
  • the camera 130 may be installed on the vehicle stopper 400, and the inverter 10 is fixed/movable wireless power feeding pad 100,200 and the vehicle stopper as shown in FIG. If it is installed separately from the vehicle, it may also be installed on the vehicle stopper 400 , or the camera may be installed in or around the inverter 10 . Also, in the case of the mobile wireless feeding pad 200 , it may be installed inside the mobile wireless feeding pad 200 .
  • the inverter 10 may be installed separately from the fixed/movable wireless power feeding pads 100 and 200 and the vehicle stopper as shown in FIG. Separation installation means that the device containing the fixed/movable wireless power feeding pad 100,200 and the inverter are separated and connected by a power line, and the integral means the device containing the fixed/movable wireless power feeding pad 100,200. It means that the inverter is included inside. In particular, when the inverter is manufactured integrally with the fixed wireless power feeding pad 100 , it may be installed together with the stationary wireless power feeding pad 100 in or under or around the vehicle stopper 400 .
  • the wireless feeding pads 100 and 200 may be installed inside the stopper 400 or under or around the lower portion of the stopper 400 , but are installed in a form linked to the previously installed stopper 400 .
  • a wireless power feeding pad may be installed in the lower part of the ground between the stoppers 400 formed on both sides of the wheel of the vehicle.
  • FIG. 10 is a diagram illustrating an embodiment when the wireless power feeding pad 100 is installed in a form that can be matched with the wireless power collecting pad 300 by sliding forward or backward by detecting the detent contact.
  • FIG. 10 is a top down view of the vehicle detent 400 and the wireless power feeding pad 100, and arrows indicate forward and rearward directions.
  • the control unit of the wireless power feeding pad detects this and controls the feeding coil 110 and the ferrite core 120 to slide forward or backward, and thereby the feeding coil 110 and the ferrite core 120 is matched to the wireless current collecting pad 300 of the vehicle.
  • a module including a power supply coil 110 and a ferrite core 120 may be installed in a structure capable of sliding on a rail.
  • a 'linked' wireless feeding pad in the sense that it is associated with a detent.
  • FIG. 10 it is illustrated that such a detent-associated wireless feeding pad 100 is provided between the demountable detents 400, but the present invention is not limited thereto.
  • Around for example, the side, it can be configured in various ways, such as the above-described link-type wireless power feeding pad 100 is provided.
  • the connected wireless power feeding pad in which the feeding coil and the ferrite core are slidable by the touch sensing of the detent may be installed under the ground or installed on the ground.
  • a space in which the power supply coil and the ferrite core can slide must be provided under the ground.
  • FIG. 11 is a configuration diagram of a wireless current collecting pad 300 that can be mounted in an arbitrary space of a vehicle.
  • the wireless current collecting pad 300 includes one or a plurality of multi-turn current collecting coils (hereinafter referred to as 'collecting coils') 310, and a ferrite core 320 on the back and side surfaces
  • FIG. 11 shows a structure of a wireless current collecting pad in which the rear part 41 of the ferrite core 320 is mounted on the lower part of the vehicle and the coil maintains a parallel state with the power supply pad. It is desirable that the wireless current collecting pad be easily moved and mounted in various locations of the vehicle as needed.
  • the vehicle is provided with a detachable unit (not shown) capable of mounting the wireless current collecting pad at various positions, and the detachable wireless current collecting pad is provided on the vehicle detachable unit.
  • the wireless power from the fixed/movable wireless feeding pad or the vehicle stopper built-in/lower type wireless power feeding pad 100, 200 stays in the wireless current collecting pad 300 space, thereby reducing the amount of power received It increases transmission efficiency and blocks EMI and EMF from radiating to the outside.
  • the wireless power collecting pad 300 receives wireless power only from the corresponding power feeding coils matching the fixed/mobile wireless feeding pad or the vehicle stop built-in/lower type wireless feeding pad 100,200, or all or all of the wireless feeding pad.
  • the amount of received power is maximized by forming a receiving magnetic field beam by adjusting the current phase of each receiving multi-coil based on the voltage or current value flowing through each of the power supply coils of the wireless power collecting pad.
  • the wireless current collecting pad 300 attaches only the power supply coil and the ferrite core to the lower part of the vehicle, the side, the front and rear surfaces, the roof, etc.
  • each of the wireless current collecting pad, the capacitor box, the rectifier, and the regulator may be configured as one or more modules.
  • the space where the current collecting pad is installed is selected so that the overlapping area between the power feeding pad and the current collecting pad is maximized when the vehicle stopper and the vehicle wheel are in close contact.
  • FIGS. 13 to 15 are vehicle stoppers It is a view showing other embodiments of the apparatus 150 for adjusting the separation distance between the wireless power feeding pad 100 and the wireless power collecting pad 300 using
  • the wireless power feeding pad 100 may further include a spacing adjusting device 150 installed in each charging and parking slot to minimize the gap between the wireless power feeding pad 100 and the wireless power collecting pad 300 .
  • 12 and 13 show an embodiment of such a spacing adjustment device 150 .
  • the distance adjusting device in the embodiment of FIG. 12 includes an AC power source 151.1 or a DC power source 151.2, and an electromagnet 152 driven by such a power source, and electric power by driving the electromagnet 152 and a power supply coil position adjusting unit for moving the position of the coil to be closer to the current collecting coil.
  • the feeding coil position adjusting unit includes an iron 153.1 or a permanent magnet 153.2 positioned on one side or both sides of the magnetic pole of the electromagnet.
  • the iron 153.1 or the permanent magnet 153.2 may directly lift the feeding coil 110 as shown in FIG. 12(c), or the feeding coil position adjusting unit as shown in FIGS. It may be attached to the arm 154 of the , and move the arm 154 through magnetic attraction to the electromagnet 152 to lift the feed coil 110 by the arm 154 .
  • the ground height is different depending on the vehicle.
  • the spacing adjusting device in the embodiment of FIGS. 13 and 14 may include an elastic part for moving the power feeding coil from the lower end of the power feeding coil to be closer to the current collecting coil at the upper side.
  • the elastic material 156 expands and lifts the power feeding pad 100 to reduce the gap between the current collecting coil and the power feeding coil.
  • the wireless feeding pad to which the elastic material 156 of FIG. 14 is applied may also be applied to any type of wireless feeding pad shown in FIGS. 4 to 9 .
  • the separation distance between the feeding and collecting pads is actively reduced by using the protrusion 163 and the arm 161 .
  • the protrusion 163 protrudes on the stopper 400 (FIG. 15(a)), but when it is pressed by the wheel 21 when a vehicle enters, it is pushed into the stopper.
  • the arm 161 connected to the protrusion 163 is pushed in to push up the feed coil support 162 (FIG. 15 (b)), and accordingly, the feed coil 110 at the upper end thereof is pushed up, collecting current. It will reduce the distance between the coil and the coil.
  • the spring 164 gives flexibility to push up the power supply coil 110 to some extent even when it comes into contact with the current collecting coil at the top.
  • 16 is a diagram illustrating an embodiment in which the wireless current collecting pad 100 is installed at the rear of the vehicle 20 .
  • the present invention is not limited to the case in which the wireless power collector 300 is mounted on the rear of the vehicle, and may be configured to be mounted anywhere on the front, left, right, upper, or lower portion of the vehicle.

Landscapes

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

Abstract

La présente invention concerne un plot d'alimentation en énergie sans fil fixe/mobile, et un plot de collecte d'énergie sans fil et un régulateur qui peuvent être montés dans n'importe quel espace d'un véhicule. Selon la présente invention, lorsqu'un plot d'alimentation en énergie sans fil est généralement positionné sur le côté arrière d'un emplacement où un véhicule est stationné, le taux d'utilisation d'espaces de stationnement pour des véhicules existants et des véhicules électriques peut être augmenté, et en ne fixant pas un emplacement de charge à un emplacement spécifique, même si le véhicule est stationné dans un emplacement arbitraire, le véhicule peut être chargé de manière souple en déplaçant le plot d'alimentation en énergie sans fil.
PCT/KR2022/003649 2021-03-16 2022-03-16 Plot d'alimentation en énergie sans fil fixe/mobile, et plot de collecte d'énergie sans fil et régulateur pouvant être montés dans n'importe quel espace d'un véhicule WO2022197083A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20210034227 2021-03-16
KR10-2021-0034227 2021-03-16
KR10-2021-0096446 2021-07-22
KR1020210096446A KR102636472B1 (ko) 2021-03-16 2021-07-22 고정형/이동형 무선 급전패드와 차량의 임의의 공간에 장착이 가능한 무선 집전패드와 레귤레이터

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WO2022197083A1 true WO2022197083A1 (fr) 2022-09-22

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PCT/KR2022/003649 WO2022197083A1 (fr) 2021-03-16 2022-03-16 Plot d'alimentation en énergie sans fil fixe/mobile, et plot de collecte d'énergie sans fil et régulateur pouvant être montés dans n'importe quel espace d'un véhicule

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130029877A (ko) * 2011-09-16 2013-03-26 한국전력공사 차량 멈춤턱을 활용한 이동형 비접촉 충전시스템 및 방법
KR20160021474A (ko) * 2014-08-18 2016-02-26 현대자동차주식회사 무선 충전 장치
KR20190087761A (ko) * 2018-01-17 2019-07-25 현대자동차주식회사 전기차 무선 전력 전송 시스템에서 다양한 구조의 페라이트를 내장한 무선 충전 패드
KR102120255B1 (ko) * 2019-04-05 2020-06-08 동의대학교 산학협력단 최적의 무선 전력 전송 위치를 자동으로 탐색하는 장치 및 방법
KR20200113134A (ko) * 2019-03-22 2020-10-06 에스케이씨 주식회사 전기 자동차용 무선 충전 시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130029877A (ko) * 2011-09-16 2013-03-26 한국전력공사 차량 멈춤턱을 활용한 이동형 비접촉 충전시스템 및 방법
KR20160021474A (ko) * 2014-08-18 2016-02-26 현대자동차주식회사 무선 충전 장치
KR20190087761A (ko) * 2018-01-17 2019-07-25 현대자동차주식회사 전기차 무선 전력 전송 시스템에서 다양한 구조의 페라이트를 내장한 무선 충전 패드
KR20200113134A (ko) * 2019-03-22 2020-10-06 에스케이씨 주식회사 전기 자동차용 무선 충전 시스템
KR102120255B1 (ko) * 2019-04-05 2020-06-08 동의대학교 산학협력단 최적의 무선 전력 전송 위치를 자동으로 탐색하는 장치 및 방법

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