WO2015099272A1 - Dispositif de transmission d'énergie sans fil et appareil d'éclairage l'utilisant - Google Patents

Dispositif de transmission d'énergie sans fil et appareil d'éclairage l'utilisant Download PDF

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Publication number
WO2015099272A1
WO2015099272A1 PCT/KR2014/009933 KR2014009933W WO2015099272A1 WO 2015099272 A1 WO2015099272 A1 WO 2015099272A1 KR 2014009933 W KR2014009933 W KR 2014009933W WO 2015099272 A1 WO2015099272 A1 WO 2015099272A1
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WO
WIPO (PCT)
Prior art keywords
electrode
transmitting
receiving
receiving electrode
electrodes
Prior art date
Application number
PCT/KR2014/009933
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English (en)
Korean (ko)
Inventor
최성진
Original Assignee
울산대학교 산학협력단
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
Application filed by 울산대학교 산학협력단 filed Critical 울산대학교 산학협력단
Publication of WO2015099272A1 publication Critical patent/WO2015099272A1/fr

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    • 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
    • H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source

Definitions

  • the present invention relates to a wireless power transmission apparatus, and more particularly, to transmit energy in a face-to-face manner by using a capacitive coupling method, the illumination arrangement by the receiving electrode having positional freedom according to the size of the transmitting electrode
  • the present invention relates to a wireless power transmitter and an illumination device using the same.
  • 1 and 2 are exemplary views for supplying power to a lighting apparatus through the wireless power method and the prior art according to the prior art.
  • This may include a transmitting circuit 2 to which the transmitting coil 1 is connected, a receiving circuit 4 to which the receiving coil 3 is connected, and an illumination device 5 connected to the receiving circuit 4.
  • the transmitting circuit 2 and the receiving circuit 4 are separated to some extent through the physical separation surface 6.
  • the size of the transmitting coil 1 ' may be changed as shown in FIG. 2 to change the position of the receiving circuit 4 to some extent.
  • most of the magnetic fields transmitted from the transmission coil 1 'to the reception coil 3 are not transmitted, but only a part of them. For this reason, power consumption is unnecessary in the structure of FIG. This brings about another problem of supplying more power to the transmission circuit 2 by that amount.
  • FIGS. 1 and 2 has a disadvantage in that the freedom of movement of the receiving circuit is extremely limited.
  • a plurality of transmission coils 12 are arranged in an array, and transmission coils 12 corresponding to the positions of the reception coils 13 are selected to supply energy.
  • 10 is a transmitting circuit
  • 11 is a coil selector
  • 14 is a receiving circuit
  • 15 is a lighting device.
  • FIG. 3 is a problem in that the coil structure embedded in the wall or the ceiling is very complicated and the magnetic flux is unevenly generated in the connection portion between the coil and the coil.
  • the magnetic field has a feature of always forming a closed loop. This feature causes the closed loop to form a magnetic field even in undesired areas, thus affecting other circuits located around the transceiver circuit, making it difficult to operate stably.
  • the thicknesses of the receiving circuit 23 and the receiving coil 24 become larger by that amount, resulting in additional cost.
  • an object of the present invention is to solve the above problems, and to provide a wireless power transmission apparatus that has a relatively simple structure of a transceiver and no influence of magnetic fields on surrounding circuits.
  • Another object of the present invention is to provide a lighting device that facilitates the position change of the lighting device by providing a position degree of freedom so that the receiving unit to which the lighting device is connected can be freely moved within a predetermined range.
  • a pair of transmission electrode A pair of receiving electrodes spaced apart from each other to correspond to the transmitting electrodes; And a link capacitor formed between each of the transmitting electrode and the receiving electrode, and wirelessly transmitting energy from the transmitting electrode to the receiving electrode in a face-to-face transmission manner using an electric field formed in the link capacitor.
  • the transmission electrode and the reception electrode are conductor plates whose shapes are formed in a flat plate shape.
  • a pair of conductors having any shape in which the surfaces of some of the transmitting electrodes and the receiving electrodes overlap each other may be used.
  • the transmitting electrode is formed relatively larger than the receiving electrode.
  • the transmitting electrodes are formed to be different in size from each other, and the receiving electrode is also formed to be different in size from each other.
  • the receiving electrode may be changed in position within a range overlapping the transmitting electrode in the vertical direction.
  • a pair of transmission electrodes formed of a conductor plate and embedded in a physical blocking surface;
  • a pair of receiving electrodes spaced apart from the transmitting electrode and having an electric field formed only on a surface overlapping the transmitting electrode in a vertical direction;
  • a lighting lamp connected to the receiving electrode.
  • the receiving electrode and the lamp are separately configured in one housing, and the housing with the receiving electrode is movable at a portion overlapping with the transmitting electrode.
  • the transmission electrode and the reception electrode are conductor plates whose shapes are formed in a flat plate shape.
  • the transmitting electrode and the receiving electrode may use a pair of conductors having an arbitrary shape in which a part of the surfaces thereof overlap each other.
  • the transmitting electrode is formed relatively larger than the receiving electrode.
  • the transmitting electrodes are formed to be different in size from each other, and the receiving electrode is also formed to be different in size from each other.
  • the receiving electrode may be changed in position within a range overlapping the transmitting electrode in the vertical direction.
  • Such a wireless power transmission apparatus and a lighting device using the same according to the present invention has the following effects.
  • the present invention provides a configuration for wirelessly transmitting energy in a face-to-face manner using an electric field between transmission and reception electrodes made of a conductive plate. Therefore, the structure of the transmission and reception unit can be simplified as compared to the configuration of wirelessly transmitting energy by the conventional induction magnetic field coupling method, and also it is less troublesome to manufacture various coil shapes.
  • the present invention transmits energy only by the electric field, it is possible to minimize the direct effect on the various circuits located in the periphery of the transmission and reception circuit according to the closed loop characteristics of the electric field.
  • the size of the transmitting electrode is larger than that of the receiving electrode, even though the receiving electrode is moved, there is always a surface overlapping with the transmitting electrode, and thus the movement of the receiving electrode is not limited.
  • 1 and 2 is an exemplary view of supplying power to a lighting device and a wireless power method according to the prior art.
  • Figure 3 is another example of supplying power to the wireless power method and the lighting device according to the prior art
  • FIG. 4 is a view illustrating a magnetic shielding layer installed between a receiving coil and a receiving circuit according to the related art.
  • FIG. 5 is a block diagram showing a wireless power transmission apparatus according to a preferred embodiment of the present invention
  • FIG. 6 is a conceptual diagram illustrating an example of transmitting energy in the wireless power transmitter shown in FIG.
  • FIG. 7 is a schematic diagram showing a lighting apparatus according to another embodiment of the present invention.
  • the present invention is to provide a power supply to the lighting device using the field-coupled wireless power feeding method, and also to ensure the positional freedom of the receiving circuit to which the lighting device is connected as a basic technical gist.
  • FIG. 5 is a block diagram showing a wireless power transmission apparatus according to an embodiment of the present invention.
  • the wireless power transmitter 100 includes a transmitter 110 having a transmitter circuit 112 and a transmitter electrode 114, and a receiver having a receiver electrode 122 and a receiver circuit 124. And a link capacitor 130 located between the transmitter 110 and the receiver 120.
  • the transmission circuit 112 includes a configuration such as a converter (not shown) for converting a DC component, which is an input power source, into an AC component. This is because the current or voltage of the DC component input by the transmitter 110 cannot be transmitted as it is to the receiver 120 which is physically separated. Therefore, the converter plays a role of making the DC component, which is the input power source, into an AC component having a periodic shape such as a square wave or a sine wave.
  • the receiving circuit 124 includes circuit elements for rectifying the AC component and converting the AC component back to the DC component.
  • the transmitting electrode 114 and the receiving electrode 122 are used as elements for transmitting energy.
  • the transmitting electrode 114 and the receiving electrode 122 have a thin plate-like conductor made of a conductive material. Plates are used.
  • the transmit electrode 114 is generally larger in size than the receive electrode 122.
  • a link capacitor 130 is formed between the transmitting electrode 114 of the transmitter 110 and the receiving electrode 122 of the receiver 120. Since the link capacitor 130 requires a current recovery path, the link capacitor 130 always exists as a pair Clink1 and Clink2, and the link capacitor 130 includes the transmission electrode 114 and the reception electrode ( 122) refers to a capacitor component formed for energy transmission in the physical separation section between.
  • the present embodiment proposes an electric field-coupled face-to-face energy transmission method that transmits energy using only an electric field instead of a magnetic field used when wirelessly supplying / feeding energy.
  • the structure of the transmitter / receiver is simpler than that of the conventional magnetically coupled coil structure, and the difficulty of manufacturing the coil shape to generate an appropriate magnetic field is eliminated.
  • the present invention uses the face-to-face energy transmission using the electric field coupling method shown in FIG. 5, but as described above, the energy is efficiently transmitted even if the position of the receiver is changed by changing the size of the transmitting electrode and the receiving electrode. Make this possible.
  • FIG. 6 shows an example of transmitting energy by varying the sizes of the transmission / reception electrodes in the power wireless transmitter shown in FIG. 5.
  • the description of the transmitting circuit and the receiving circuit will be omitted.
  • a transmitting electrode 114 and a receiving electrode 122 are configured.
  • the size of the transmitting electrode 114 is larger than that of the receiving electrode 122.
  • the receiving electrode 122 may move in the left / right direction when viewed in the drawing, and may also move in the front / rear direction perpendicular to the drawing. That is, within the range of the size of the transmission electrode 114, the positional movement is possible while maintaining the same separation distance. Even if the receiving electrode 122 moves in this way, an electric field is formed only on a surface overlapping the transmitting electrode 114.
  • the electric field is formed in the form of an open loop (part A). This shows that the range of the electric field is clearly distinguished. Therefore, the influence on other circuit elements adjacent to the transmitting electrode 114 and the receiving electrode 122 can be minimized. As a result, the configuration of the shield having a predetermined thickness, which is necessary to reduce the influence of the magnetic field in the conventional wireless transmitter, becomes unnecessary, and the size of the transceiver can be reduced accordingly.
  • FIG. 7 is a schematic diagram illustrating a lighting apparatus according to another embodiment of the present invention.
  • the 7 is a diagram for supplying energy to a lighting device using the above-described power wireless transmitter.
  • the first transmission electrode 210a and the second transmission electrode 210b connected to the transmission circuit 200 are configured.
  • the transmission circuit 200, the first transmission electrode 210a, and the second transmission electrode 210b are usually embedded in walls, ceilings, and the like.
  • the transmission electrodes 210a and 210b have the same size as each other.
  • the first receiving electrode 220a and the second receiving electrode 220b which are physically separated from the transmitting electrodes 210a and 210b are configured.
  • the first receiving electrode 220a and the second receiving electrode 220b are formed to have a relatively small size compared with the first transmitting electrode 210a and the second transmitting electrode 210b.
  • the first receiving electrode 220a and the second receiving electrode 220b have the same size.
  • a receiving circuit 230 is connected to the first receiving electrode 220a and the second receiving electrode 220b.
  • the lamp 240 is connected to the receiving circuit (230).
  • the receiving electrodes 220a and 220b and the receiving circuit 230 have an example of being connected by a cable 250, the receiving electrodes 220a and 220b and the receiving circuit 230 are in close contact with each other. It can be formed as.
  • the lamp 240 may be installed to be spaced apart from the receiving circuit 230 by a cable or the like.
  • the receiving electrodes 220a and 220b are exposed to the outside while being separated from the transmitting electrodes 210a and 210b. It becomes a state.
  • the receiving electrodes 220a and 220b are face-to-face energy transfer between the electrodes from the transmitting electrodes 210a and 210b at any position within the size of the transmitting electrodes 210a and 210b. Therefore, the positional movement of the receiving electrodes 220a and 220b within the sizes of the transmitting electrodes 210a and 210b may be possible, which may mean that the position of the lamp 240 may be more easily changed.
  • a bracket or a housing (not shown) surrounding the reception electrodes 220a and 220b may be mounted on a surface on which the transmission electrodes 210a and 210b are embedded as a physical bonding medium such as an adhesive material or a bolt.
  • a guide rail (not shown) may be installed in a surface in which the transmitting electrodes 210a and 210b are embedded, and the bracket or the housing including the receiving electrodes 220a and 220b may be moved along the guide rail.
  • the receiving electrodes 220a and 220b, the receiving circuit 230, and the lighting lamp 240 may be included in the bracket or the housing together to form a block. In this case, it is easier to change the position of the lamp.
  • the sizes of the transmission and reception electrodes may be formed differently.
  • the sizes of the transmitting electrodes 210a and 210b are different from each other, and the sizes of the receiving electrodes 220a and 220b may be the same.
  • the sizes of the transmission electrodes 210a and 210b may be the same and the sizes of the reception electrodes 220a and 220b may be different.
  • the sizes of the transmission electrodes 210a and 210b and the reception electrodes 220a and 220b may be different.
  • the sizes of the transmission electrodes 210a and 210b should be relatively larger than those of the reception electrodes 220a and 220b.
  • the receiving electrodes 220a and 220b overlap only a part of the transmitting electrodes 210a and 210b so that energy is wirelessly transmitted through the overlapping sections to supply power to the lamp. do.
  • the present invention has a form of a face-to-face energy transmission between the plane and the plane, so that energy can be transmitted without complicated wiring, and thus the lighting position can be freely changed, thereby being widely applied to a wireless lighting device that improves user convenience.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

La présente invention concerne un dispositif de transmission d'énergie sans fil comprenant : une paire d'électrodes de transmission ; une paire d'électrodes de réception situées de façon à être espacées pour correspondre aux électrodes de transmission ; et des condensateurs de liaison formés respectivement entre l'électrode de transmission et l'électrode de réception, et il transmet sans fil de l'énergie des électrodes de transmission aux électrodes de réception grâce à une méthode de transmission face à face en utilisant un champ électrique formé autour du condensateur de liaison, ce qui fournit des effets remarquables par rapport à une méthode de couplage magnétique inductif classique. De plus, comme l'électrode de transmission est d'une forme plus grande que l'électrode de réception, et comme l'énergie n'est transmise qu'à la partie au niveau de laquelle l'électrode de transmission et l'électrode de réception sont superposées, la présente invention garantit un certain degré de liberté pour la position de l'électrode de réception, et ainsi, lorsqu'une lampe d'éclairage est formée au niveau de l'électrode de réception, la lampe d'éclairage peut être déplacée vers une position adaptée sans opération de câblage peu commode.
PCT/KR2014/009933 2013-12-26 2014-10-22 Dispositif de transmission d'énergie sans fil et appareil d'éclairage l'utilisant WO2015099272A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020130164536A KR20150076002A (ko) 2013-12-26 2013-12-26 무선전력 전송장치 및 그를 이용한 조명장치
KR10-2013-0164536 2013-12-26

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WO2015099272A1 true WO2015099272A1 (fr) 2015-07-02

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PCT/KR2014/009933 WO2015099272A1 (fr) 2013-12-26 2014-10-22 Dispositif de transmission d'énergie sans fil et appareil d'éclairage l'utilisant

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WO (1) WO2015099272A1 (fr)

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Publication number Priority date Publication date Assignee Title
KR102204352B1 (ko) 2015-12-28 2021-01-19 한국전자기술연구원 무선전력전달 및 무선충전 기술이 적용된 무선 조명 시스템
KR102201087B1 (ko) * 2018-11-07 2021-01-11 목포해양대학교 산학협력단 커패시터 구조를 활용한 무선 전력송신장치 및 무선 전력수신장치
KR102495513B1 (ko) * 2020-06-23 2023-02-03 서울대학교산학협력단 전기 자동차용 무선 충전 시스템

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012044857A (ja) * 2010-07-22 2012-03-01 Tdk Corp ワイヤレス給電装置およびワイヤレス電力伝送システム
JP2012231661A (ja) * 2011-04-15 2012-11-22 Semiconductor Energy Lab Co Ltd 発光装置、表示装置、発光システム及び表示システム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012044857A (ja) * 2010-07-22 2012-03-01 Tdk Corp ワイヤレス給電装置およびワイヤレス電力伝送システム
JP2012231661A (ja) * 2011-04-15 2012-11-22 Semiconductor Energy Lab Co Ltd 発光装置、表示装置、発光システム及び表示システム

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