WO2019175031A1 - Équipement d'alimentation électrique sans fil - Google Patents

Équipement d'alimentation électrique sans fil Download PDF

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Publication number
WO2019175031A1
WO2019175031A1 PCT/EP2019/055783 EP2019055783W WO2019175031A1 WO 2019175031 A1 WO2019175031 A1 WO 2019175031A1 EP 2019055783 W EP2019055783 W EP 2019055783W WO 2019175031 A1 WO2019175031 A1 WO 2019175031A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
wireless power
antenna
supply equipment
equipment according
Prior art date
Application number
PCT/EP2019/055783
Other languages
English (en)
Inventor
Shaoyong Wang
Yulin FENG
Yuming Song
Original Assignee
Tyco Electronics (Shanghai) Co. Ltd.
Tyco Electronics Uk Ltd
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 Tyco Electronics (Shanghai) Co. Ltd., Tyco Electronics Uk Ltd filed Critical Tyco Electronics (Shanghai) Co. Ltd.
Publication of WO2019175031A1 publication Critical patent/WO2019175031A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H02J7/025—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • 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
    • H01F2038/143—Inductive couplings for signals
    • 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
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

Definitions

  • the present disclosure relates to a wireless power supply equipment.
  • Antennas commonly used in smart home appliances or electronic devices comprise a dipole antenna, an inverted-F antenna and the like. These antennas each have a simple structure and high efficiency, and are suitable for a far field communication with a certain distance (R»2D2/k, where R is a distance between two antennas for transmitting signals to each other, D is the maximum outer size of the antenna, and l is an operating wavelength of the antenna).
  • R is a distance between two antennas for transmitting signals to each other
  • D the maximum outer size of the antenna
  • l is an operating wavelength of the antenna
  • the NFC antenna cannot realize high-speed communications.
  • the antenna as described above is generally used for communication in a stationary state.
  • two antennas need to be rotated mutually, for example, when one antenna is mounted on a wireless high-definition camera, which is powered wirelessly, a relative rotational motion may be generated between the two antennas.
  • the NFC antenna is a linearly polarized antenna, and the distance between the two antennas often changes greatly during the rotation, a signal intensity received by the antennas also changes drastically.
  • signal intensity and signal reception quality are generally ensured by increasing transmission power.
  • increasing the transmission power may cause communication signals to be leaked into the surrounding environment and is easily eavesdropped by others, thus reducing safety and security of the communication. Therefore, the existing antennae are not suitable for security devices having strict anti-eavesdropping requirements.
  • An object of the present disclosure is to address at least one of the above and other problems and defects existing in the prior arts.
  • a wireless power supply equipment comprising: a base including a wireless power supply transmitting coil and an antenna; an extension dock including a wireless power supply receiving coil, an antenna, and a connection interface; a rotation shaft configured to pivotally connect the base and the extension dock; and an application device configured to be connected to the extension dock through the connection interface.
  • a wireless power supply product comprising: a base including a transmitting coil and an antenna; an extension dock including a receiving coil, an antenna, and a connection interface; a rotation shaft configured to pivotally connect the base and the extension dock; and an application device configured to be connected to the extension dock through the connection interface.
  • a wireless communication product comprising: a base including a transmitting coil and an antenna; an extension dock including a receiving coil, an antenna, and a connection interface; a rotation shaft configured to pivotally connect the base and the extension dock; and an application unit configured to be connected to the extension dock through the connection interface.
  • a product capable of simultaneously implementing wireless power supply and wireless communication, the product comprising: a base including a transmitting coil and an antenna; a extension dock including a receiving coil, an antenna, and a connection interface; a rotation shaft configured to pivotally connect the base and the extension dock, the extension dock being configured to be connected to an application device through the connection interface.
  • any one of the transmitting antenna and the receiving antenna comprises a substrate and upper and lower circular metal strips formed on upper and lower surfaces of the substrate.
  • the transmitting antenna and the receiving antenna may be rotated about the same central axis.
  • the distance between them will not be changed. Therefore, it is possible to ensure signal strength and signal receiving quality without increasing transmission power.
  • far field radiation energy of the antenna is very low. Therefore, it is possible to effectively prevent communication signals from being leaked into the surrounding environment and being eavesdropped by others, thereby improving safety and confidentiality of the communication.
  • FIG. 1 shows a schematic perspective view of a transmitting antenna when viewed from the front according to an exemplary embodiment of the disclosure
  • FIG. 2 shows a schematic perspective view of the transmitting antenna when viewed from the back according to an exemplary embodiment of the disclosure
  • FIG. 3 shows a schematic exploded perspective view of the transmitting antenna according to an exemplary embodiment of the disclosure in which a radio frequency resistor is shown;
  • FIG. 4 shows a schematic perspective view of a receiving antenna when viewed from the front according to an exemplary embodiment of the disclosure
  • FIG. 5 shows a schematic perspective view of the receiving antenna viewed from the back according to an exemplary embodiment of the disclosure
  • FIG. 6 shows a schematic exploded perspective view of the receiving antenna according to an exemplary embodiment of the disclosure in which a radio frequency resistor is shown;
  • FIG. 7 is a schematic view showing operations of the transmitting antenna shown in FIG. 1 and the receiving antenna shown in FIG. 4;
  • FIG. 8 is a schematic view showing a product capable of simultaneously implementing wireless power supply and wireless communication, according to an embodiment of the present disclosure
  • FIG. 9 is a functional and structural block diagram of the product shown in FIG. 8;
  • FIG. 10 is a schematic perspective view of a transmitting antenna or a receiving antenna of the product shown in FIG. 9;
  • FIG. 11 is a schematic view showing assembling of the antennas with coils.
  • a wireless power supply equipment comprising: a base comprising a wireless power supply transmitting coil and an antenna; a extension dock comprising a wireless power supply receiving coil, an antenna, and a connection interface; a rotation shaft being configured to pivotally connect the base and the extension dock; and an application device configured to be connected to the extension dock through the connection interface.
  • a wireless power supply product comprising: a base comprising a transmitting coil and an antenna; an extension dock comprising a receiving coil, an antenna, and a connection interface; a rotation shaft configured to pivotally connect connecting the base and the extension dock; and an application device connecting to the extension dock through the connection interface.
  • a wireless communication product comprising: a base including a transmitting coil and an antenna; an extension dock including a receiving coil, an antenna, and a connection interface; a rotation shaft configured to pivotally connect the base and the extension dock, the extension dock being configured to be connected an application device through the connection interface.
  • a product capable of simultaneously implementing wireless power supply and wireless communication, the product comprising: a base including a transmitting coil and an antenna; an extension dock including a receiving coil, an antenna, and a connection interface; a rotation shaft configured to pivotally connect the base and the extension dock, the extension dock being configured to be connected an application unit through the connection interface.
  • an antenna comprising: a substrate; a first circular metal strip formed on a surface of the substrate; and a second circular metal strip formed on the other surface of the substrate.
  • One end of the first circular metal strip is a feed end, and the other end is for connecting to one end of a radio frequency resistor.
  • One end of the second circular metal strip is a ground end, and the other end is for connecting to the other end of the radio frequency resistor.
  • FIG. 8 is a schematic view showing a product capable of simultaneously implementing wireless power supply and wireless communication, according to an embodiment of the present disclosure.
  • FIG. 9 is a functional and structural block diagram of the product shown in FIG. 8.
  • FIG. 10 is a schematic perspective view of a transmitting coil or a receiving coil of the product shown in FIG. 9; and
  • FIG. 11 is a schematic view showing assembling of the antennas with the coils.
  • the product mainly includes a base, an extension dock and a replaceable audio/video device (audio or video device).
  • the base includes a circular transmitting coil, a circular antenna, a power supply circuit and a communication circuit.
  • the extension dock includes a circular receiving coil, a circular antenna, a power supply circuit and a communication circuit.
  • the replaceable audio/video device may be a camera, a display, a human-machine interactive device, a billboard, a top radar of a driverless car, and the likes.
  • the circular coils and the circular antennas of the base and the extension dock are respectively placed on a common rotation shaft.
  • the circular coil has outer and inner rings wound in opposite directions so as to reduce an eddy current loss on the metal rotation shaft.
  • the circular antenna is a near- field circularly polarized antenna that enables high-speed wireless short-range communication while reducing the impact of signal leakage on the surroundings.
  • the extension dock and the replaceable audio/ video device are wired and electrically connected, to form a combination without changing relative positions thereof.
  • the combination is fixedly mounted to a metal cylinder passing through the center thereof.
  • the metal cylinder also passes through the base. There is no physical contact between the base and the combination.
  • the transmitting coil and the receiving coil are formed respectively by connecting in series two co-planar and coaxially placed sub-coils. Since the winding directions of the inner and outer sub-coils are opposite to each other, the currents flowing through the inner and outer sub-coils are opposite in direction, such that, magnetic field generated by the currents are co-directionally superposed to have an increased magnetic field strength within an annular region between the two sub-coils, , and are reversely cancelled to have a decreased magnetic field strength within the sub-coil with a smaller diameter.
  • the eddy current generated on the metal cylinder vertically passing through the inside of the sub-coil with the smaller diameter is smaller, and at the same time, if a metal object is placed outside of the sub-coil with a larger diameter, a eddy current generated on the metal object is also smaller.
  • the structure of the receiving coil is the same as that of the transmitting coil, but the size of the receiving coil may be different from that of the transmitting coil.
  • the shapes of the transmitting coil and the receiving coil are not limited to a circular shape, and may be any polygonal shape.
  • a ferrite magnet may be placed on one side of the coil to enhance the coupling between the transmitting coil and the receiving coil.
  • a coil that comprises outer and inner rings wound in opposite directions can significantly reduce eddy current power on the metal object (including the rotation shaft and antennas, etc.) passing through the interior of the coil by at least 20%.
  • the antennas and the coils are placed coaxially with each other, and their relative positions are relatively flexible.
  • the antenna may have a smaller diameter so that it can be placed inside the coil, or may have a larger diameter so that it can be placed outside the coil.
  • FIG. 1 to FIG. 7 show embodiments of the antennas applied in the product shown in FIG. 8 and FIG. 9.
  • the antenna is consisted of two circular metal strips on a single-layer double-sided PCB.
  • One ends of the two metal strips are feed ends of the antennas, and, in actual use, are connected to radio frequency ground and radio frequency pin of a radio frequency chip, and the other ends are connected to one radio frequency resistor, respectively.
  • the two, upper and lower, circular metal strips are each formed into a mircostrip transmission line, and changing of a width of the metal strip may cause changing of the characteristic impedance of the microstrip transmission line.
  • Output characteristic impedance of a commonly used radio frequency chip is 50 ohms, so the characteristic impedance of the microstrip transmission line and the terminated radio frequency resistor are both 50 ohms.
  • Transmission lines having other impedance values are not excluded.
  • the metal strip occupies almost the entire length of the circle, with only 1 to 5 mm discontinuities between two end faces thereof.
  • the termination resistance is equal to the characteristic impedance of the transmission line, thus when the antenna is fed, the electromagnetic wave in the transmission line is a traveling wave flowing only in one direction, while, the conventional far-field antenna operates in a resonant state has an internal electromagnetic field in the form of standing wave.
  • the antenna has a wider bandwidth similar as the transmission line, and the electric field around the circular traveling wave antenna is circularly polarized, and the polarization is not affected by its own rotation angle. Referring to FIG.
  • the electromagnetic waves emitted by one of the antennas can be effectively received by the other of the antennas, and strength of the received signal is usually much larger than receiving sensitivity of the wireless chip.
  • the antenna is a near field antenna, and its far-field radiant energy is very low, it is very difficult to obtain a long distance signal interception.
  • the products shown in FIG. 8 to FIG. 11 can be products capable of simultaneously implementing wireless power supply and wireless communication. However, the present disclosure is not limited to this.
  • the products shown in FIG. 8 to FIG. 11 can also be used as products for enabling wireless power supply only or products for enabling wireless communication only.
  • FIGS. 1 to 3 show a transmitting antenna 10 according to an exemplary embodiment of the disclosure.
  • FIG. 1 shows a schematic perspective view of a transmitting antenna when viewed from the front according to an exemplary embodiment of the disclosure
  • FIG. 2 shows a perspective view of the transmitting antenna when viewed from the back according to an exemplary embodiment of the disclosure.
  • the transmitting antenna mainly comprises a substrate 100, a first circular metal strip 110 formed on one surface of the substrate 100, and a second circular metal strip 120 formed on the other surface of the substrate 100 opposite to the one surface.
  • FIG. 3 shows a schematic exploded perspective view of the transmitting antenna according to an exemplary embodiment of the disclosure in which a radio frequency resistor 130 is shown.
  • the first circular metal strip 110 has one end 111 used as a feed end and the other end 112 adapted to be connected to one end of the radio frequency resistor 130.
  • the second circular metal strip 120 has one end 121 used as a grounding terminal and the other end 122 adapted to be connected to the other end of the radio frequency resistor 130.
  • the one end 111 of the first circular metal strip 110 is connected to a feed end of a radio frequency chip (not shown), and the one end 121 of the second circular metal strip 120 is connected to a grounding terminal of the radio frequency chip (not shown).
  • the substrate 100 may comprise a circuit board, and the first circular metal strip 110 and the second circular metal strip 120 each may comprise a metal microstrip transmission line printed on the circuit board.
  • a distance between the two ends 111, 112 of the first circular metal strip 110 is within a range of 1 mm to 5 mm.
  • a distance between the two ends 121 and 122 of the second circular metal strip 120 is within a range of 1 mm to 5 mm.
  • the circuit board 100 may have a circular or annular shape.
  • FIGS. 4 to 6 show a receiving antenna 20 according to an exemplary embodiment of the disclosure.
  • FIG. 4 shows a schematic perspective view of a receiving antenna when viewed from the front according to an exemplary embodiment of the disclosure
  • FIG. 5 shows a schematic perspective view of the receiving antenna when viewed from the back according to the exemplary embodiment of the disclosure.
  • the receiving antenna mainly comprises a substrate 200, a first circular metal strip 210 formed on one surface of the substrate 200 and a second shaped metal strip 220 formed on the other surface of the substrate 200 opposite to the one surface.
  • FIG. 6 shows a schematic exploded perspective view of the receiving antenna according to an exemplary embodiment of the disclosure in which a radio frequency resistor 230 is shown.
  • the first circular metal strip 210 has one end 211 used as a feed end and the other end 212 adapted to be connected to one end of the radio frequency resistor 230.
  • the second circular metal strip 220 has one end 221 used as a ground terminal and the other end 222 adapted to be connected to the other end of the radio frequency resistor 230.
  • the one end 211 of the first circular metal strip 210 is connected to a feed end of a radio frequency chip (not shown), and the one end 221 of the second circular metal strip 220 is connected to a grounding terminal of the radio frequency chip.
  • the substrate 200 may comprise a circuit board, and the first circular metal strip 210 and the second circular metal strip 220 may comprise metal microstrip transmission lines printed on the circuit board.
  • a distance between the two ends 211, 212 of the first circular metal strip 210 is within a range of 1 mm to 5 mm.
  • a distance between the two ends 221 and 222 of the second circular metal strip 220 is within a range of 1 mm to 5 mm.
  • the above circuit board 200 may have a circular or annular shape.
  • a transmitting device mainly comprising a transmitting antenna, a radio frequency resistor and a radio frequency chip.
  • the transmitting antenna may comprise the transmitting antenna as shown in FIGS. 1 to 3.
  • the transmitting antenna mainly comprises a substrate 100, a first circular metal strip 110 formed on one surface of the substrate 100, and a second circular metal strip 120 formed on the other surface of the substrate 100.
  • the first circular metal strip 110 is connected to a feed end of a radio frequency chip (not shown) at one end 111 thereof, and the second circular metal strip 120 is connected to a grounding terminal of the radio frequency chip at one end 121 thereof.
  • the first circular metal strip 110 is connected to one end of the radio frequency resistor 130 at the other end 112 thereof, and the second circular metal strip 120 is connected to the other end of the radio frequency resistor 130 at the other end 122 thereof.
  • An impedance value of a characteristic impedance of each of the first circular metal strip 110 and the second circular metal strip 120 is substantially equal to a resistance value of the radio frequency resistor 130.
  • the impedance value of the characteristic impedance of each of the first circular metal strip 110 and the second circular metal strip 120 may be within the range of 30 ohms to 70 ohms.
  • the impedance value of the characteristic impedance of each of the first circular metal strip 110 and the second circular metal strip 120, and the resistor value of the radio frequency resistor 130 may be substantially equal to 50 ohms.
  • the characteristic impedance of each of the first circular metal strip 110 and the second circular metal strip 120 may be changed by changing a width and/or thickness of each of the first circular metal strip 110 and the second circular metal strip 120.
  • the substrate 100 may comprise a circuit board, and the first circular metal strip 110 and the second circular metal strip 120 may comprise metal microstrip transmission lines printed on the circuit board.
  • a distance between the two ends 111, 112 of the first circular metal strip 110 is within a range of 1 mm to 5 mm.
  • a distance between the two ends 121 and 122 of the second circular metal strip 120 is within a range of 1 mm to 5 mm.
  • a receiving device mainly comprising a receiving antenna, a radio frequency resistor and a radio frequency chip.
  • the receiving antenna may comprise the receiving antenna as shown in FIGS. 4 to 6.
  • the receiving antenna mainly comprises a substrate 200, a first circular metal strip 210 formed on one surface of the substrate 200, and a second circular metal strip
  • one end 211 of the first circular metal strip 210 is connected to a feed end of a radio frequency chip (not shown), and one end
  • the second circular metal strip 220 is connected to a grounding terminal of the radio frequency chip.
  • the other end 212 of the first circular metal strip 210 is connected to one end of the radio frequency resistor 230, and the other end 222 of the second circular metal strip 220 is connected to the other end of the radio frequency resistor 230.
  • An impedance value of the characteristic impedance of each of the first circular metal strip 210 and the second circular metal strip 220 is substantially equal to a resistance value of the radio frequency resistor 230.
  • the impedance value of the characteristic impedance of each of the first circular metal strip 210 and the second circular metal strip 220 may be within the range of 30 ohms to 70 ohms.
  • the impedance value of the characteristic impedance of each of the first circular metal strip 210 and the second circular metal strip 220, and the resistor value of the radio frequency resistor 230 may be substantially equal to 50 ohms.
  • the characteristic impedance of each of the first circular metal strip 210 and the second circular metal strip 220 may be changed by changing a width and/or thickness of each of the first circular metal strip 210 and the second circular metal strip 220.
  • the substrate 200 may comprise a circuit board, and the first circular metal strip 210 and the second circular metal strip 220 may comprise metal microstrip transmission lines printed on the circuit board.
  • a distance between the two ends 211, 212 of the first circular metal strip 210 is within a range of 1 mm to 5 mm.
  • a distance between the two ends 221 and 222 of the second circular metal strip 220 is within a range of 1 mm to 5 mm.
  • a wireless communication system mainly comprising the transmitting device and the receiving device as described above referring to FIGS. 1-6.
  • FIG. 7 shows a schematic view of the transmitting antenna 10 shown in FIG. 1 and the receiving antenna 20 shown in FIG. 4 in operation.
  • the transmitting antenna 10 and the receiving antenna 20 have a common central axis Z about which at least one of the transmitting antenna 10 and the receiving antenna 20 may be rotated.
  • the transmitting antenna and the receiving antenna may be rotated about the same central axis.
  • the distance between the transmitting antenna and the receiving antenna will not be changed. Therefore, it is possible to ensure signal intensity and signal receiving quality without increasing transmission power.
  • far field radiation energy of the antenna is very low. In this way, it is possible to effectively prevent communication signals from being leaked into the surrounding environment and being eavesdropped by others, thereby improving safety and security of the communication.
  • any one of the transmitting antenna and the receiving antenna comprises a substrate and upper and lower circular metal strips formed on upper and lower surfaces of the substrate.
  • Each circular metal strip occupies almost full length of a circle except a spacing of 1 to 5 mm being provided at the two end faces thereof
  • the impedance value of the characteristic impedance of each of the circular metal strips are substantially equal to the resistance value of the radio-frequency resistors connected in series between them. Therefore, when feeding the antennas, an electromagnetic wave within each of the circular metal strips is a traveling wave only propagating in one direction, while the traditional far- field antenna may be operated in a resonant state, and the electromagnetic field therein is in the form of a standing wave.
  • the antennas of the disclosure have a wide bandwidth similar to a transmission line, and the electric field around the circular traveling wave antenna is a circular polarization, and the polarization mode thereof is not affected by its own rotation angle.
  • the electromagnetic wave emitted by one antenna may be effectively received by the other.
  • the antennas of the disclosure are near-field antennas, their far field radiation energy are very low, and it is very difficult to capture the signals at a long distance.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Details Of Aerials (AREA)

Abstract

La présente invention porte sur un équipement d'alimentation électrique sans fil. L'équipement d'alimentation électrique sans fil comprend : une base comprenant une bobine de transmission d'alimentation électrique sans fil et une antenne ; une station d'accueil d'extension comprenant une bobine de réception d'alimentation électrique sans fil, une antenne, et une interface de connexion ; un arbre de rotation configuré pour relier de manière pivotante la base et la station d'accueil d'extension ; et un dispositif d'application configuré pour être relié à la station d'accueil d'extension par l'intermédiaire de l'interface de connexion.
PCT/EP2019/055783 2018-03-13 2019-03-07 Équipement d'alimentation électrique sans fil WO2019175031A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810205575.5A CN110277627A (zh) 2018-03-13 2018-03-13 无线供电设备
CN201810205575.5 2018-03-13

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Publication Number Publication Date
WO2019175031A1 true WO2019175031A1 (fr) 2019-09-19

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CN112087062B (zh) * 2020-09-18 2022-01-28 重庆大学 抑制拾取线圈平面金属影响的耦合机构参数设计方法

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WO1998052350A1 (fr) * 1997-05-16 1998-11-19 Lectrolarm Custom Systems, Inc. Coupleur permettant de transmettre des signaux via une interface rotative
JP2009200750A (ja) * 2008-02-20 2009-09-03 Victor Co Of Japan Ltd ロータリジョイント
EP2916469A1 (fr) * 2014-03-06 2015-09-09 Panasonic Intellectual Property Corporation of America Dispositif de communication sans fil de proximité

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US9362776B2 (en) * 2012-11-27 2016-06-07 Qualcomm Incorporated Wireless charging systems and methods
CN203104131U (zh) * 2013-02-07 2013-07-31 光碁科技股份有限公司 可360度旋转的无线供电装置
CN204785365U (zh) * 2015-07-03 2015-11-18 大族激光科技产业集团股份有限公司 一种基于无线供电和无线通讯的云台
WO2017022054A1 (fr) * 2015-08-03 2017-02-09 三菱電機エンジニアリング株式会社 Dispositif de transmission d'énergie et antenne
JP6584896B2 (ja) * 2015-09-30 2019-10-02 株式会社 日立産業制御ソリューションズ 送電または受電コイル、それを用いた無線電力伝送装置および回転体
CN106199556B (zh) * 2016-06-24 2019-01-18 南京理工大学 一种自主驾驶用车载激光雷达的旋转扫描装置
CN107294222A (zh) * 2017-08-21 2017-10-24 西安长远电子工程有限责任公司 小型可旋转无线供电系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998052350A1 (fr) * 1997-05-16 1998-11-19 Lectrolarm Custom Systems, Inc. Coupleur permettant de transmettre des signaux via une interface rotative
JP2009200750A (ja) * 2008-02-20 2009-09-03 Victor Co Of Japan Ltd ロータリジョイント
EP2916469A1 (fr) * 2014-03-06 2015-09-09 Panasonic Intellectual Property Corporation of America Dispositif de communication sans fil de proximité

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