WO2014065468A1 - Apparatus for supplying wireless power and electronic device comprising same - Google Patents

Apparatus for supplying wireless power and electronic device comprising same Download PDF

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Publication number
WO2014065468A1
WO2014065468A1 PCT/KR2012/011645 KR2012011645W WO2014065468A1 WO 2014065468 A1 WO2014065468 A1 WO 2014065468A1 KR 2012011645 W KR2012011645 W KR 2012011645W WO 2014065468 A1 WO2014065468 A1 WO 2014065468A1
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WIPO (PCT)
Prior art keywords
power supply
wireless
wireless power
power
magnetic field
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PCT/KR2012/011645
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French (fr)
Korean (ko)
Inventor
김영한
원윤재
문연국
임용석
임승옥
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전자부품연구원
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Publication of WO2014065468A1 publication Critical patent/WO2014065468A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • 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
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
    • 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
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H04B5/79—
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging

Definitions

  • the present invention relates to a wireless power supply and an electronic device including the same, and more particularly, to a wireless power supply using a magnetic field and an electronic device including the same.
  • a wireless charging system using magnetic induction is used as a wireless power transmission technology for wirelessly transmitting energy.
  • the magnetic induction method of inducing current through a magnetic field from one coil to another is very sensitive to the distance and relative position between the coils, so that the transmission efficiency drops rapidly even if the distance between the two coils is slightly dropped or twisted. Accordingly, this magnetic induction charging system can only be used in a short distance of several cm or less.
  • US Patent 7,741,735 discloses a non-radiative energy transfer method based on the attenuation wave coupling of the resonant field. This is because two resonators with the same frequency do not affect other non-resonators around them, but they tend to couple with each other and are introduced as a technology that can transfer energy over a long distance compared to conventional electromagnetic induction. .
  • the wireless charging method using the resonance can transmit energy to a far distance than the conventional electromagnetic induction, but there is still a limit of the distance, there is a problem that the charging efficiency is sharply reduced when the distance is far.
  • the present invention has been made in the technical background as described above, to provide a wireless power supply device and an electronic device including the same that can increase the wireless charging distance and efficiency.
  • the transmitting antenna of the wireless power supply device is installed to have an inclination and fixed to a slide plate that can be mounted on an electronic device.
  • the wireless power supply apparatus is a wireless power supply for transmitting power in a self-resonant manner to an external wireless charger, and receives the power from an external power supply source and the wireless power supply and the wireless charger.
  • a power converter converting AC power having a resonant frequency band therebetween;
  • a transmission antenna for transmitting the AC power from the power converter to the wireless charger using a magnetic resonance method;
  • a shielding material attached to at least one surface of the transmitting antenna and shielding the influence of radio wave interference around the transmitting antenna;
  • a controller for controlling the components of the wireless power supply including the power converter, wherein the transmission antenna is formed to be inclined with the bottom surface of the wireless power supply.
  • the wireless power supply further includes a slide plate that can be mounted to an electronic device, and preferably, at least the transmitting antenna and the shielding material are fixed on the slide plate.
  • the wireless power supply may further include a magnetic field communication modem for performing magnetic field communication with the wireless charger using a magnetic field communication protocol, wherein the transmission antenna is a magnetic resonance method for data from the magnetic field communication modem. It can be transmitted to the wireless charger using.
  • an electronic device and a laptop computer including the wireless power supply are provided.
  • the transmitting antenna of the wireless power supply unit when the transmitting antenna of the wireless power supply unit is installed on the slide-type plate and charged using the wireless power supply unit, when the charging antenna is taken out of the electronic device and charged, the freedom of charging of the mobile device, which is the charging target device, can be increased. .
  • the charging target device can be placed on the wireless power supply, thereby maximizing the charging efficiency and eliminating the influence of radio wave interference of the electronic device.
  • FIG. 1 is a block diagram schematically showing the overall configuration of a multi-node wireless charging system using a magnetic resonance method according to an embodiment of the present invention.
  • FIG. 2 is a block diagram illustrating a configuration of a wireless power supply device and a wireless charger of a multi-node wireless charging system using a magnetic resonance method according to an exemplary embodiment of the present invention.
  • FIG. 3 illustrates an embodiment of the invention in which a wireless power supply is incorporated into a laptop computer.
  • FIG. 4 is a view showing the configuration of a wireless power supply apparatus according to an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating a wireless charging system including a laptop computer including a wireless charging device and a mobile device that is a charging target device according to another embodiment of the present invention.
  • the wireless charging system has a wireless power supply device 100 that wirelessly supplies power through a magnetic resonance method, and a predetermined distance from the wireless power supply device 100.
  • Magnetic resonance is a method of maximizing the wireless transmission efficiency of energy by the resonance between the transmitting antenna and the receiving antenna.
  • a resonance channel is formed by matching a resonance frequency between the wireless power supply device 100 and the wireless charger 200 and transmit wireless power through the resonance channel.
  • the wireless power supply device 100 includes a wireless charger 200_1, 200_2, including identification information, type, location, or state of charge of the charger through magnetic field communication with the wireless charger 200_1, 200_2, .., 200_N. ..., 200_N) may be received, and power may be transmitted to the wireless chargers 200_1, 200_2,..., 200_N based on the charging information.
  • the wireless power supply device 100 may be implemented in a fixed or mobile type, if the fixed type can be installed indoors, such as a ceiling or a table, and in the outdoors, it may be installed in an implant type such as a bus stop or a subway station. In addition, the wireless power supply device 100 may be installed inside a moving object such as a vehicle, a train, a subway. When the wireless power supply device 100 is implemented as a mobile device, the wireless power supply device 100 may be implemented as a separate mobile device or may be included in a mobile device such as a laptop computer. It may be implemented as part.
  • the wireless chargers 200_1, 200_2, .., 200_N may include all digital devices including batteries, such as various mobile terminals and digital cameras, and sensors disposed at places not easily accessible, such as underground, underwater, or inside a building. And electronic devices such as measuring instruments.
  • FIG. 2 is a block diagram illustrating a configuration of a wireless power supply device and a wireless charger of a multi-node wireless charging system using a magnetic resonance method according to an exemplary embodiment of the present invention.
  • the wireless power supply device 100 of the multi-node wireless charging system using the magnetic resonance method receives the power from an external power supply source and the wireless power supply device 100.
  • a power converter 120 converting AC power having a resonant frequency band between the wireless charger 200 and the magnetic field communication modem 130 to perform magnetic field communication with the wireless charger 200 using a magnetic field communication protocol.
  • the wireless charger that is, the wireless charging receiver 200 of the multi-node wireless charging system using the magnetic resonance method according to an embodiment of the present invention, receives power and data from the wireless power supply device 100 using the magnetic resonance method.
  • a magnetic field communication modem 230 for performing a magnetic field communication with the wireless power supply device 100 using a reception antenna 210, a magnetic field communication protocol, a power management unit 220 for managing power reception, a power management unit, and a magnetic field communication
  • the controller 240 controls the components of the wireless charger 200 including the modem 230, and a battery 250 that is charged using the received power.
  • the wireless power supply device 100 and the wireless charger 200 use the magnetic field communication using the magnetic field communication modems 130 and 230 for efficient wireless. Achieve charging.
  • the wireless power supply apparatus has been described as an example of communicating with the wireless charger using a magnetic field communication method using a magnetic field modem.
  • the wireless power supply and the wireless charger necessarily communicate with the magnetic field.
  • the methods do not have to communicate with each other.
  • the wireless charging process may be controlled using the corresponding communication method.
  • FIG. 3 illustrates an embodiment of the invention in which a wireless power transfer device is incorporated into a laptop computer.
  • a magnetic resonance wireless power transmitter 310 is mounted inside the laptop computer 300, and is located in various mobile devices 400_1, 400_2, and 400_3 located around the laptop computer 300. Power is transmitted to the wireless charging receivers 410_1, 410_2, and 410_3, which are respectively built in a magnetic resonance method.
  • FIG. 4 is a view showing the configuration of a wireless power supply apparatus according to an embodiment of the present invention.
  • the wireless power supply 310 has a predetermined thickness so that the transmitting antenna 312 may be inclined. Since the wireless power supply 310 is installed in the laptop computer 300, this thickness can be at most the height of the laptop computer 300.
  • a shield 314 is inserted below the transmit antenna 312 so that the shield 314 can be located between the antenna and the bottom of the laptop computer 300.
  • the shield 314 may also serve as a holder for the antenna 312, and may attach a holder to the shield 314 to secure the antenna 312.
  • Other components of the wireless power supply 310 such as the control unit or power conversion unit, may be formed under the shield 314, or may be inserted all-in-one into the internal board of the laptop computer 300. have.
  • horizontal charging between the wireless power supply 310 and the wireless charger is performed by inserting the transmission antenna 312 of the wireless power supply 310 inclined using the height clearance space of the laptop computer 300. You can increase the distance.
  • the wireless power supply may be mounted on the laptop computer in a sliding manner.
  • FIG. 5 is a diagram illustrating a wireless charging system including a laptop computer including a wireless charging device and a mobile device that is a charging target device according to another embodiment of the present invention.
  • the wireless power supply 510 is mounted on the laptop computer 500 by installing on a slide-type plate 520 that can be removed and inserted in a slide manner similar to a CD-ROM driver or the like. do.
  • the configuration of the wireless power supply 510 itself is similar to that shown in FIG. 4.
  • the wireless power supply function of the laptop computer 500 when the wireless power supply function of the laptop computer 500 is used, when the wireless power supply device 510 is pulled out and charged in a sliding manner, the degree of freedom for charging the mobile devices 600_1, 600_2, and 600_3 which are the charging target devices is charged. Can increase.
  • the charging target device may be placed on the wireless power supply 510 to maximize charging efficiency.
  • the charging efficiency may be over 80%.
  • the wireless power supply when the wireless power supply is installed in a laptop computer, the upper plate of the laptop computer is made of a metal material, and thus, charging efficiency may be reduced due to the interference of radio waves.
  • the wireless power supply is slid. You can get rid of this effect by recharging it in the same way.
  • the wireless power supply is embedded in the laptop computer
  • the wireless power supply according to the embodiment of the present invention is not necessarily embedded in the laptop computer.
  • the wireless power supply may be incorporated into other electronic devices that may incorporate a slide plate such as a desktop computer or an AV system.

Abstract

A transmission antenna of an apparatus for supplying wireless power is disposed on an incline, and is fixed on a sliding-type plate which can be attached to an electronic device. An apparatus for supplying wireless power according to the present invention comprises: a power converting unit for converting power supplied by an external power source into alternating current having a resonant frequency band between the apparatus for supplying wireless power and a wireless recharger; a transmission antenna for transmitting the alternating current from the power converting unit to the wireless recharger by means of magnetic resonance; a shielding member, attached to at least one side of the transmission antenna, for shielding against the effect of interference in the vicinity thereof; and a control unit for controlling the elements of the apparatus for supplying wireless power, including the power converting unit, wherein the transmission antenna is disposed so as to be on an incline with respect to the bottom surface of the apparatus for supplying wireless power, and at least the transmission antenna and the shielding member can be fixed on a sliding-type plate which can be attached to an electronic device.

Description

무선전력 공급장치 및 이를 포함하는 전자기기 Wireless power supply and electronic device including the same
본 발명은 무선전력 공급장치 및 이를 포함하는 전자기기에 관한 것으로서, 더 구체적으로는 자기장을 이용한 무선전력 공급장치 및 이를 포함하는 전자기기에 관한 것이다.The present invention relates to a wireless power supply and an electronic device including the same, and more particularly, to a wireless power supply using a magnetic field and an electronic device including the same.
현재 IT기술, 특히 이동통신기기의 발전은 급속도로 진행되어서 최근 한 명의 개인이 휴대폰, MP3 플레이어, 디지털카메라 등 여러 개의 휴대 가능한 디지털기기를 보유하고 있는 상황이다. 이와 같은 발전 속에 유일하게 발전이 지체되고 있는 분야가 바로 전원공급 관련 분야이며, 근래 다양한 모바일기기의 급속한 보급 속에 전원공급을 유선으로 하고 있다는 불편함은 무선 충전 및 무선 전력전송에 대한 관심을 크게 증대시키면서 관련 산업 분야에 새로운 시장을 창출하고 있다. At present, the development of IT technology, especially mobile communication devices, is rapidly progressing, and a single individual has several portable digital devices such as a mobile phone, an MP3 player, and a digital camera. The only area where development is delayed in such development is power supply-related fields, and the inconvenience of wired power supply in recent years due to the rapid spread of various mobile devices has greatly increased interest in wireless charging and wireless power transmission. At the same time, they are creating new markets in related industries.
무선으로 에너지를 전달하는 무선 전력 전송 기술로서 자기유도 현상을 이용한 무선 충전 시스템이 사용되고 있다. As a wireless power transmission technology for wirelessly transmitting energy, a wireless charging system using magnetic induction is used.
예컨대, 전동칫솔 또는 무선 면도기 등이 전자기 유도의 원리로 충전되며, 최근에는 전자기 유도를 이용하여 휴대전화나 PDA, MP3 플레이어, 노트북 컴퓨터와 같은 휴대기기를 충전할 수 있는 무선충전제품들이 출시되고 있다. For example, electric toothbrushes or wireless shavers are charged with the principle of electromagnetic induction. Recently, wireless charging products for charging mobile devices such as mobile phones, PDAs, MP3 players, and notebook computers using electromagnetic induction have been introduced. .
그러나, 하나의 코일에서 다른 코일로 자기장을 통해 전류를 유도하는 자기유도 방식은 코일 사이의 거리 및 상대적 위치에 매우 민감하여 두 코일 사이의 거리가 약간 떨어지거나 틀어져도 전송 효율이 급속히 떨어진다. 이에 따라 이러한 자기유도 방식의 충전 시스템은 수 cm 이하의 근거리에서만 사용할 수 있다는 약점이 있다.However, the magnetic induction method of inducing current through a magnetic field from one coil to another is very sensitive to the distance and relative position between the coils, so that the transmission efficiency drops rapidly even if the distance between the two coils is slightly dropped or twisted. Accordingly, this magnetic induction charging system can only be used in a short distance of several cm or less.
한편, 미국특허 7,741,735호에서는 공진장의 감쇄파 결합에 기반을 둔 비방사형 에너지 전달 방식을 개시하고 있다. 이는 두 개의 동일한 주파수를 갖는 공진체가 주위의 다른 비공진체와는 영향을 미치지 않지만 서로 커플링하려는 경향을 가지는 점을 이용한 것으로 기존의 전자기 유도에 비하여 먼 거리까지 에너지를 전달할 수 있는 기술로서 소개되고 있다. On the other hand, US Patent 7,741,735 discloses a non-radiative energy transfer method based on the attenuation wave coupling of the resonant field. This is because two resonators with the same frequency do not affect other non-resonators around them, but they tend to couple with each other and are introduced as a technology that can transfer energy over a long distance compared to conventional electromagnetic induction. .
공진을 이용한 무선 충전 방식은 기존의 전자기 유도에 비하여 먼 거리까지 에너지를 전달할 수는 있지만, 여전히 거리의 한계가 존재하며 거리가 멀어질 경우 충전 효율이 급격히 저하되는 문제점이 있다. The wireless charging method using the resonance can transmit energy to a far distance than the conventional electromagnetic induction, but there is still a limit of the distance, there is a problem that the charging efficiency is sharply reduced when the distance is far.
본 발명은 상술한 바와 같은 기술적 배경에서 안출된 것으로서, 무선 충전 거리 및 효율을 높일 수 있는 무선전력 공급장치 및 이를 포함하는 전자기기를 제공하는 것을 그 과제로 한다.The present invention has been made in the technical background as described above, to provide a wireless power supply device and an electronic device including the same that can increase the wireless charging distance and efficiency.
이와 같은 과제를 해결하기 위하여 본 발명에서는, 무선전력 공급장치의 송신 안테나를 경사를 갖도록 설치하고, 전자기기에 장착할 수 있는 슬라이드형 플레이트에 고정한다.In order to solve such a problem, in the present invention, the transmitting antenna of the wireless power supply device is installed to have an inclination and fixed to a slide plate that can be mounted on an electronic device.
본 발명의 일면에 따른 무선전력 공급장치는, 외부의 무선 충전기기로 자기공진 방식으로 전력을 송신하는 무선전력 공급장치로서, 외부의 전력 공급원으로부터 전력을 공급받아 상기 무선전력 공급장치와 상기 무선 충전기기 간의 공진 주파수 대역을 갖는 교류 전력으로 변환하는 전력 변환부; 상기 전력 변환부로부터의 교류 전력을 자기공진 방식을 이용하여 상기 무선 충전기기로 송신하는 송신 안테나; 상기 송신 안테나의 적어도 일면에 부착되어 있으며 상기 송신 안테나 주위의 전파 간섭에 의한 영향을 차폐하는 차폐재; 및 상기 전력 변환부를 포함하는 상기 무선전력 공급장치의 구성요소들을 제어하는 제어부를 포함하며, 상기 송신 안테나는 상기 무선전력 공급장치의 바닥면과 경사를 이루도록 형성되는 것을 특징으로 한다.The wireless power supply apparatus according to an aspect of the present invention is a wireless power supply for transmitting power in a self-resonant manner to an external wireless charger, and receives the power from an external power supply source and the wireless power supply and the wireless charger. A power converter converting AC power having a resonant frequency band therebetween; A transmission antenna for transmitting the AC power from the power converter to the wireless charger using a magnetic resonance method; A shielding material attached to at least one surface of the transmitting antenna and shielding the influence of radio wave interference around the transmitting antenna; And a controller for controlling the components of the wireless power supply including the power converter, wherein the transmission antenna is formed to be inclined with the bottom surface of the wireless power supply.
상기 무선전력 공급장치는, 전자기기에 장착될 수 있는 슬라이드형 플레이트를 더 포함하며, 상기 슬라이드형 플레이트 상에 적어도 상기 송신 안테나와 상기 차폐재가 고정되는 것이 바람직하다.The wireless power supply further includes a slide plate that can be mounted to an electronic device, and preferably, at least the transmitting antenna and the shielding material are fixed on the slide plate.
상기 무선전력 공급장치는 자기장 통신 프로토콜을 이용하여 상기 무선 충전기기와의 자기장 통신을 수행하도록 하는 자기장 통신 모뎀을 더 포함할 수 있으며, 이 때 상기 송신 안테나는 상기 자기장 통신 모뎀으로부터의 데이터를 자기공진 방식을 이용하여 상기 무선 충전기기로 송신할 수 있다. The wireless power supply may further include a magnetic field communication modem for performing magnetic field communication with the wireless charger using a magnetic field communication protocol, wherein the transmission antenna is a magnetic resonance method for data from the magnetic field communication modem. It can be transmitted to the wireless charger using.
본 발명의 다른 면에 따르면 상기 무선전력 공급장치를 포함하는 전자기기 및 랩탑 컴퓨터가 제공된다.According to another aspect of the present invention, an electronic device and a laptop computer including the wireless power supply are provided.
무선전력 공급장치의 송신 안테나를 바닥면과 경사지게 형성함으로써 충전 거리 및 효율을 증가시킬 수 있다.It is possible to increase the charging distance and efficiency by forming the transmission antenna of the wireless power supply device inclined with the bottom surface.
또한, 무선전력 공급장치의 송신 안테나를 슬라이드형 플레이트에 설치하여 무선전력 공급장치를 이용하여 충전할 때 이를 전자기기 외부로 꺼내어 충전을 하게 되면, 충전 대상기기인 모바일 기기들의 충전 자유도를 높일 수 있다. 특히, 이 경우에는 무선전력 공급장치 위에 충전 대상기기를 올려놓을 수 있어 충전 효율을 극대화할 수 있으며, 전자기기의 전파 간섭에 의한 영향을 배제할 수 있다.In addition, when the transmitting antenna of the wireless power supply unit is installed on the slide-type plate and charged using the wireless power supply unit, when the charging antenna is taken out of the electronic device and charged, the freedom of charging of the mobile device, which is the charging target device, can be increased. . In particular, in this case, the charging target device can be placed on the wireless power supply, thereby maximizing the charging efficiency and eliminating the influence of radio wave interference of the electronic device.
도 1은 본 발명의 실시예에 따른 자기공진 방식을 이용한 멀티노드 무선 충전 시스템의 전체 구성을 개략적으로 나타낸 블록도이다.1 is a block diagram schematically showing the overall configuration of a multi-node wireless charging system using a magnetic resonance method according to an embodiment of the present invention.
도 2는 본 발명의 실시예에 따른 자기공진 방식을 이용한 멀티노드 무선 충전 시스템의 무선전력 공급장치와 무선 충전기기의 구성을 나타내는 블록도이다. 2 is a block diagram illustrating a configuration of a wireless power supply device and a wireless charger of a multi-node wireless charging system using a magnetic resonance method according to an exemplary embodiment of the present invention.
도 3은 무선전력 공급장치가 랩탑 컴퓨터에 내장되어 있는 본 발명의 실시예를 나타낸다.3 illustrates an embodiment of the invention in which a wireless power supply is incorporated into a laptop computer.
도 4는 본 발명의 실시예에 따른 무선전력 공급장치의 구성을 나타내는 도면이다.4 is a view showing the configuration of a wireless power supply apparatus according to an embodiment of the present invention.
도 5는 본 발명의 다른 실시예에 따른 무선 충전 장치를 포함하는 랩탑 컴퓨터와 충전 대상기기인 모바일 기기를 포함하는 무선 충전 시스템을 나타내는 도면이다.5 is a diagram illustrating a wireless charging system including a laptop computer including a wireless charging device and a mobile device that is a charging target device according to another embodiment of the present invention.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. 한편, 본 명세서에서 사용된 용어는 실시예들을 설명하기 위한 것이며 본 발명을 제한하고자 하는 것은 아니다. 본 명세서에서, 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다. 명세서에서 사용되는 "포함한다(comprises)" 및/또는 "포함하는(comprising)"은 언급된 구성요소, 단계, 동작 및/또는 소자는 하나 이상의 다른 구성요소, 단계, 동작 및/또는 소자의 존재 또는 추가를 배제하지 않는다. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Meanwhile, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and / or “comprising” refers to the presence of one or more other components, steps, operations and / or elements. Or does not exclude additions.
이하에서, 첨부한 도면을 참고로 하여 본 발명의 실시예에 따른 무선전력 공급장치 및 이를 포함하는 무선 충전 시스템에 대하여 상세히 설명하기로 한다.Hereinafter, a wireless power supply device and a wireless charging system including the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 1에 나타난 바와 같이, 본 발명의 실시예에 따른 무선 충전 시스템은 자기공진 방식을 통해 무선으로 전력을 공급하는 무선전력 공급장치(100)와, 무선전력 공급장치(100)와 소정의 거리만큼 떨어진 곳에 위치하며 무선전력 공급장치(100)로부터 무선으로 전력을 공급받는 다수의 무선 충전기기(200_1, 200_2, .., 200_N)를 포함하여 구성된다. As shown in FIG. 1, the wireless charging system according to an exemplary embodiment of the present invention has a wireless power supply device 100 that wirelessly supplies power through a magnetic resonance method, and a predetermined distance from the wireless power supply device 100. Located in a remote place and comprises a plurality of wireless chargers (200_1, 200_2, ..., 200_N) that is wirelessly powered from the wireless power supply (100).
자기공진 방식은 송신 안테나와 수신 안테나 사이의 공진에 의하여 에너지의 무선 전송 효율을 극대화시키는 방법이다. 이를 위하여 무선전력 공급장치(100)와 무선 충전기기(200) 사이의 공진 주파수를 맞추어 공진 채널을 형성하고 이를 통하여 무선 전력을 송신한다. Magnetic resonance is a method of maximizing the wireless transmission efficiency of energy by the resonance between the transmitting antenna and the receiving antenna. To this end, a resonance channel is formed by matching a resonance frequency between the wireless power supply device 100 and the wireless charger 200 and transmit wireless power through the resonance channel.
무선전력 공급장치(100)는 무선 충전기기(200_1, 200_2, .., 200_N)와 자기장 통신을 통해 충전기기의 식별정보, 종류, 위치, 또는 충전상태를 포함하는 무선 충전기기(200_1, 200_2, .., 200_N)의 정보를 수신할 수 있으며, 이와 같은 충전 정보를 바탕으로 무선 충전기기(200_1, 200_2, .., 200_N)로 전력을 전송할 수 있다. The wireless power supply device 100 includes a wireless charger 200_1, 200_2, including identification information, type, location, or state of charge of the charger through magnetic field communication with the wireless charger 200_1, 200_2, .., 200_N. ..., 200_N) may be received, and power may be transmitted to the wireless chargers 200_1, 200_2,..., 200_N based on the charging information.
무선전력 공급장치(100)는 고정형 또는 이동형으로 구현될 수 있으며, 고정형으로 구현될 경우 실내에서는 천장이나 테이블 등의 가구 등에 설치될 수 있고, 실외에서는 버스 정류장이나 지하철역 등에 임플란트 형식으로 설치될 수 있으며, 무선전력 공급장치(100)가 차량이나 기차, 지하철과 같은 이동체의 내부에 설치될 수도 있다. 무선전력 공급장치(100)가 이동형으로 구현되는 경우에는, 무선전력 공급장치(100) 자체가 별도의 이동형 장치로 구현될 수도 있고, 랩탑 컴퓨터 등의 이동형 장치에 포함되도록 하는 등과 같이 다른 디지털 기기의 일부로서 구현될 수도 있다. The wireless power supply device 100 may be implemented in a fixed or mobile type, if the fixed type can be installed indoors, such as a ceiling or a table, and in the outdoors, it may be installed in an implant type such as a bus stop or a subway station. In addition, the wireless power supply device 100 may be installed inside a moving object such as a vehicle, a train, a subway. When the wireless power supply device 100 is implemented as a mobile device, the wireless power supply device 100 may be implemented as a separate mobile device or may be included in a mobile device such as a laptop computer. It may be implemented as part.
무선 충전기기(200_1, 200_2, .., 200_N)는 각종 모바일 단말기, 디지털 카메라 등 배터리를 구비하는 모든 디지털 기기를 포함할 수 있으며, 지중, 수중, 건물 내부 등 접근이 용이하지 않은 곳에 배치되는 센서 및 계측기 등의 전자기기가 될 수도 있다. The wireless chargers 200_1, 200_2, .., 200_N may include all digital devices including batteries, such as various mobile terminals and digital cameras, and sensors disposed at places not easily accessible, such as underground, underwater, or inside a building. And electronic devices such as measuring instruments.
도 2는 본 발명의 실시예에 따른 자기공진 방식을 이용한 멀티노드 무선 충전 시스템의 무선전력 공급장치와 무선 충전기기의 구성을 나타내는 블록도이다. 2 is a block diagram illustrating a configuration of a wireless power supply device and a wireless charger of a multi-node wireless charging system using a magnetic resonance method according to an exemplary embodiment of the present invention.
도 2에 나타난 바와 같이, 본 발명의 실시예에 따른 자기공진 방식을 이용한 멀티노드 무선 충전 시스템의 무선전력 공급장치(100)는, 외부의 전력 공급원으로부터 전력을 공급받아 무선전력 공급장치(100)와 무선 충전기기(200) 간의 공진 주파수 대역을 갖는 AC 전력으로 변환하는 전력 변환부(120), 자기장 통신 프로토콜을 이용하여 무선 충전기기(200)와의 자기장 통신을 수행하도록 하는 자기장 통신 모뎀(130), 전력 변환부(140)로부터의 AC 전력과 자기장 통신 모뎀(120)으로부터의 데이터를 자기공진 방식을 이용하여 무선 충전기기(200)로 송신하는 송신 안테나(110), 전력 변환부(140) 및 자기장 통신 모뎀(120)을 비롯한 무선전력 공급장치(100)의 구성요소들을 제어하는 제어부(130)를 포함한다.As shown in FIG. 2, the wireless power supply device 100 of the multi-node wireless charging system using the magnetic resonance method according to an embodiment of the present invention receives the power from an external power supply source and the wireless power supply device 100. And a power converter 120 converting AC power having a resonant frequency band between the wireless charger 200 and the magnetic field communication modem 130 to perform magnetic field communication with the wireless charger 200 using a magnetic field communication protocol. A transmission antenna 110 for transmitting the AC power from the power converter 140 and data from the magnetic field communication modem 120 to the wireless charger 200 using the magnetic resonance method, the power converter 140, and It includes a control unit 130 for controlling the components of the wireless power supply device 100, including the magnetic field communication modem 120.
본 발명의 실시예에 따른 자기공진 방식을 이용한 멀티노드 무선 충전 시스템의 무선 충전기기, 즉 무선충전 수신기(200)는, 무선전력 공급장치(100)로부터 자기공진 방식을 이용하여 전력과 데이터를 수신하는 수신 안테나(210), 자기장 통신 프로토콜을 이용하여 무선전력 공급장치(100)와의 자기장 통신을 수행하도록 하는 자기장 통신 모뎀(230), 전력 수신을 관리하는 전력 관리부(220), 전력 관리부 및 자기장 통신 모뎀(230)을 비롯한 무선 충전기기(200)의 구성요소들을 제어하는 제어부(240), 수신된 전력을 이용하여 충전되는 배터리(250)를 포함한다.The wireless charger, that is, the wireless charging receiver 200 of the multi-node wireless charging system using the magnetic resonance method according to an embodiment of the present invention, receives power and data from the wireless power supply device 100 using the magnetic resonance method. A magnetic field communication modem 230 for performing a magnetic field communication with the wireless power supply device 100 using a reception antenna 210, a magnetic field communication protocol, a power management unit 220 for managing power reception, a power management unit, and a magnetic field communication The controller 240 controls the components of the wireless charger 200 including the modem 230, and a battery 250 that is charged using the received power.
본 발명의 실시예에 따른 자기공진 방식을 이용한 멀티노드 무선 충전 시스템에서는 무선전력 공급장치(100)와 무선 충전기기(200)가 자기장 통신 모뎀(130, 230)을 이용한 자기장 통신을 이용하여 효율적인 무선 충전을 달성한다. In the multi-node wireless charging system using the magnetic resonance method according to an embodiment of the present invention, the wireless power supply device 100 and the wireless charger 200 use the magnetic field communication using the magnetic field communication modems 130 and 230 for efficient wireless. Achieve charging.
도 1 및 도 2를 참고로 설명한 본 발명의 실시예에서는 무선전력 공급장치가 자기장 모뎀을 이용한 자기장 통신 방법으로 무선 충전기기와 통신하는 것을 예로 들어 설명하였지만, 무선전력 공급장치와 무선 충전기기가 반드시 자기장 통신 방법을 이용하여 서로 통신하여야 하는 것은 아니다. 특히, 무선전력 공급장치와 무선 충전기기가 다른 통신방식을 지원하는 경우, 해당 통신방식을 이용하여 무선 충전 과정을 제어할 수 있다.In the exemplary embodiment of the present invention described with reference to FIGS. 1 and 2, the wireless power supply apparatus has been described as an example of communicating with the wireless charger using a magnetic field communication method using a magnetic field modem. However, the wireless power supply and the wireless charger necessarily communicate with the magnetic field. The methods do not have to communicate with each other. In particular, when the wireless power supply and the wireless charger support different communication methods, the wireless charging process may be controlled using the corresponding communication method.
도 3은 무선전력 전송장치가 랩탑 컴퓨터에 내장되어 있는 본 발명의 실시예를 나타낸다.3 illustrates an embodiment of the invention in which a wireless power transfer device is incorporated into a laptop computer.
도 3에 나타난 바와 같이, 자기공진 방식의 무선전력 전송장치(310)가 랩탑 컴퓨터(300) 내부에 장착되어 있으며, 랩탑 컴퓨터(300) 주위에 위치하는 각종 모바일 기기(400_1, 400_2, 400_3)에 각각 내장되어 있는 무선충전 수신기(410_1, 410_2, 410_3)로 자기공진 방식으로 전력을 전송한다. As shown in FIG. 3, a magnetic resonance wireless power transmitter 310 is mounted inside the laptop computer 300, and is located in various mobile devices 400_1, 400_2, and 400_3 located around the laptop computer 300. Power is transmitted to the wireless charging receivers 410_1, 410_2, and 410_3, which are respectively built in a magnetic resonance method.
도 4는 본 발명의 실시예에 따른 무선전력 공급장치의 구성을 나타내는 도면이다.4 is a view showing the configuration of a wireless power supply apparatus according to an embodiment of the present invention.
도 4에 나타난 바와 같이, 본 발명의 실시예에 따른 무선전력 공급장치(310)는 송신 안테나(312)를 경사지게 설치할 수 있도록 일정한 두께를 갖는다. 무선전력 공급장치(310)가 랩탑 컴퓨터(300) 내에 설치되므로, 이 두께는 최대로 랩탑 컴퓨터(300)의 높이가 될 수 있다. As shown in FIG. 4, the wireless power supply 310 according to the embodiment of the present invention has a predetermined thickness so that the transmitting antenna 312 may be inclined. Since the wireless power supply 310 is installed in the laptop computer 300, this thickness can be at most the height of the laptop computer 300.
랩탑 컴퓨터(300)에 무선전력 공급장치의 송신 안테나를 삽입하는 데 있어서 컴퓨터의 바닥면과 마주보게 설치하면, 방사 특성에 의해 랩탑 컴퓨터의 측면에서 모바일 기기들을 충전하기 위한 거리 및 효율에 한계가 있다. 이에 비하여, 도 3 및 도 4에 나타난 바와 같이 비스듬하게 경사가 있게 안테나를 삽입하면 바닥과 마주보게 안테나를 삽입하는 것에 비해 충전 거리 및 효율을 증가시킬 수 있다.When installed facing the bottom of the computer in inserting the transmitting antenna of the wireless power supply to the laptop computer 300, there is a limit to the distance and efficiency for charging mobile devices on the side of the laptop computer due to the radiation characteristics . In contrast, when the antenna is inserted obliquely as shown in FIGS. 3 and 4, the charging distance and the efficiency may be increased as compared with inserting the antenna facing the floor.
송신 안테나(312)의 아래쪽에는 차폐재(314)를 삽입하여 랩탑 컴퓨터(300)의 바닥과 안테나 사이에 차폐재(314)가 위치할 수 있도록 한다. 차폐재(314)는 또한 안테나(312)의 고정대 역할을 할 수 있으며, 안테나(312)를 고정하기 위한 고정대를 차폐재(314)에 부착할 수도 있다. A shield 314 is inserted below the transmit antenna 312 so that the shield 314 can be located between the antenna and the bottom of the laptop computer 300. The shield 314 may also serve as a holder for the antenna 312, and may attach a holder to the shield 314 to secure the antenna 312.
제어부나 전력변환부와 같은 무선전력 공급장치(310)의 다른 구성요소들은 차폐재(314)의 아래쪽에 형성하거나, 랩탑 컴퓨터(300)의 내부 보드에 올인원(all-in-one)으로 삽입할 수 있다. Other components of the wireless power supply 310, such as the control unit or power conversion unit, may be formed under the shield 314, or may be inserted all-in-one into the internal board of the laptop computer 300. have.
이와 같이, 무선전력 공급장치(310)의 송신 안테나(312)를 랩탑 컴퓨터(300)의 높이 유격 공간을 이용해서 경사가 있게 삽입함에 따라 무선전력 공급장치(310)와 무선 충전기기 사이의 수평 충전 거리를 늘릴 수 있다.As such, horizontal charging between the wireless power supply 310 and the wireless charger is performed by inserting the transmission antenna 312 of the wireless power supply 310 inclined using the height clearance space of the laptop computer 300. You can increase the distance.
한편, 충전 거리를 더욱 늘리고 충전 효율을 높이기 위하여 무선전력 공급장치를 슬라이드 방식으로 랩탑 컴퓨터에 장착하도록 할 수 있다. Meanwhile, in order to further increase the charging distance and increase the charging efficiency, the wireless power supply may be mounted on the laptop computer in a sliding manner.
도 5는 본 발명의 다른 실시예에 따른 무선 충전 장치를 포함하는 랩탑 컴퓨터와 충전 대상기기인 모바일 기기를 포함하는 무선 충전 시스템을 나타내는 도면이다.5 is a diagram illustrating a wireless charging system including a laptop computer including a wireless charging device and a mobile device that is a charging target device according to another embodiment of the present invention.
도 5에 나타난 바와 같이, 무선전력 공급장치(510)를 CD-ROM 드라이버 등의 형태와 유사하게 슬라이드 방식으로 꺼내고 삽입할 수 있는 슬라이드형 플레이트(520) 상에 설치하여 랩탑 컴퓨터(500)에 장착한다. As shown in FIG. 5, the wireless power supply 510 is mounted on the laptop computer 500 by installing on a slide-type plate 520 that can be removed and inserted in a slide manner similar to a CD-ROM driver or the like. do.
무선전력 공급장치(510) 자체의 구성은 도 4에 나타난 구성과 유사하다.The configuration of the wireless power supply 510 itself is similar to that shown in FIG. 4.
이와 같이, 랩탑 컴퓨터(500)의 무선전력 공급 기능을 이용할 때, 무선전력 공급장치(510)를 슬라이드 방식으로 꺼내어 충전을 하게 되면, 충전 대상기기인 모바일 기기(600_1, 600_2, 600_3)들의 충전 자유도를 높일 수 있다. 특히, 이 경우에는 무선전력 공급장치(510) 위에 충전 대상기기를 올려놓을 수 있어 충전 효율을 극대화할 수 있다. 안테나가 포함된 무선전력 공급장치(510) 위에 충전 대상기기를 놓고 충전을 할 경우 80% 이상의 충전 효율을 낼 수 있다.As such, when the wireless power supply function of the laptop computer 500 is used, when the wireless power supply device 510 is pulled out and charged in a sliding manner, the degree of freedom for charging the mobile devices 600_1, 600_2, and 600_3 which are the charging target devices is charged. Can increase. In particular, in this case, the charging target device may be placed on the wireless power supply 510 to maximize charging efficiency. When charging a device to be charged on the wireless power supply 510 including the antenna, the charging efficiency may be over 80%.
또한, 무선전력 공급장치를 랩탑 컴퓨터에 내장되도록 설치할 경우 랩탑 컴퓨터의 위쪽 판이 금속 물질로 되어 있어 전파 간섭에 의한 영향으로 충전 효율이 떨어질 수 있는데, 상술한 실시예에서와 같이 무선전력 공급장치를 슬라이드 방식으로 꺼내어 충전을 하게 되면 이러한 영향을 없앨 수 있다.In addition, when the wireless power supply is installed in a laptop computer, the upper plate of the laptop computer is made of a metal material, and thus, charging efficiency may be reduced due to the interference of radio waves. As in the above-described embodiment, the wireless power supply is slid. You can get rid of this effect by recharging it in the same way.
한편, 상술한 실시예에서는 무선전력 공급장치가 랩탑 컴퓨터에 내장되는 경우를 예로 들어 설명하였으나, 본원발명의 실시예에 따른 무선전력 공급장치가 반드시 랩탑 컴퓨터에 내장되어야 하는 것은 아니다. 예를 들어, 데스크탑 컴퓨터나 AV 시스템과 같은 슬라이드형 플레이트가 내장될 수 있는 다른 전자기기에 무선전력 공급장치를 내장하도록 할 수도 있다. Meanwhile, in the above-described embodiment, a case where the wireless power supply is embedded in the laptop computer has been described as an example, but the wireless power supply according to the embodiment of the present invention is not necessarily embedded in the laptop computer. For example, the wireless power supply may be incorporated into other electronic devices that may incorporate a slide plate such as a desktop computer or an AV system.
이상에서 바람직한 실시예를 기준으로 본 발명을 설명하였지만, 본 발명의 장치 및 방법은 반드시 상술된 실시예에 제한되는 것은 아니며 발명의 요지와 범위로부터 벗어남이 없이 다양한 수정이나 변형을 하는 것이 가능하다. 따라서, 첨부된 특허청구의 범위는 본 발명의 요지에 속하는 한 이러한 수정이나 변형을 포함할 것이다. Although the present invention has been described above with reference to preferred embodiments, the apparatus and method of the present invention are not necessarily limited to the above-described embodiments, and various modifications and variations can be made without departing from the spirit and scope of the invention. Accordingly, the appended claims will include such modifications and variations as long as they fall within the spirit of the invention.

Claims (5)

  1. 외부의 무선 충전기기로 자기공진 방식으로 전력을 송신하는 무선전력 공급장치로서,Wireless power supply that transmits power in a magnetic resonance method to an external wireless charger,
    외부의 전력 공급원으로부터 전력을 공급받아 상기 무선전력 공급장치와 상기 무선 충전기기 간의 공진 주파수 대역을 갖는 교류 전력으로 변환하는 전력 변환부;A power converter which receives power from an external power supply and converts the power into an AC power having a resonant frequency band between the wireless power supply and the wireless charger;
    상기 전력 변환부로부터의 교류 전력을 자기공진 방식을 이용하여 상기 무선 충전기기로 송신하는 송신 안테나; A transmission antenna for transmitting the AC power from the power converter to the wireless charger using a magnetic resonance method;
    상기 송신 안테나의 적어도 일면에 부착되어 있으며 상기 송신 안테나 주위의 전파 간섭에 의한 영향을 차폐하는 차폐재; 및A shielding material attached to at least one surface of the transmitting antenna and shielding the influence of radio wave interference around the transmitting antenna; And
    상기 전력 변환부를 포함하는 상기 무선전력 공급장치의 구성요소들을 제어하는 제어부를 포함하며,It includes a control unit for controlling the components of the wireless power supply including the power conversion unit,
    상기 송신 안테나는 상기 무선전력 공급장치의 바닥면과 경사를 이루도록 형성되는 무선전력 공급장치.The transmitting antenna is formed to be inclined with the bottom surface of the wireless power supply.
  2. 제1항에 있어서,The method of claim 1,
    전자기기에 장착될 수 있는 슬라이드형 플레이트를 더 포함하며,Further comprising a slide plate that can be mounted to the electronic device,
    상기 슬라이드형 플레이트 상에 적어도 상기 송신 안테나와 상기 차폐재가 고정되는 무선전력 공급장치.And at least the transmitting antenna and the shielding material are fixed on the slide plate.
  3. 제1항에 있어서,The method of claim 1,
    자기장 통신 프로토콜을 이용하여 상기 무선 충전기기와의 자기장 통신을 수행하도록 하는 자기장 통신 모뎀을 더 포함하며, It further comprises a magnetic field communication modem for performing magnetic field communication with the wireless charger using a magnetic field communication protocol,
    상기 송신 안테나는 상기 자기장 통신 모뎀으로부터의 데이터를 자기공진 방식을 이용하여 상기 무선 충전기기로 송신하는 무선전력 공급장치.The transmitting antenna is a wireless power supply for transmitting data from the magnetic field communication modem to the wireless charger using a magnetic resonance method.
  4. 제1항 내지 제3항 중 어느 한 항의 무선전력 공급장치를 포함하는 전자 기기.An electronic device comprising the wireless power supply as claimed in claim 1.
  5. 제1항 내지 제3항 중 어느 한 항의 무선전력 공급장치를 포함하는 랩탑 컴퓨터. A laptop computer comprising the wireless power supply of claim 1.
PCT/KR2012/011645 2012-10-26 2012-12-27 Apparatus for supplying wireless power and electronic device comprising same WO2014065468A1 (en)

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