WO2017164476A1 - Noyau de matrice pour charge sans fil et système de charge sans fil utilisant celui-ci - Google Patents

Noyau de matrice pour charge sans fil et système de charge sans fil utilisant celui-ci Download PDF

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Publication number
WO2017164476A1
WO2017164476A1 PCT/KR2016/011673 KR2016011673W WO2017164476A1 WO 2017164476 A1 WO2017164476 A1 WO 2017164476A1 KR 2016011673 W KR2016011673 W KR 2016011673W WO 2017164476 A1 WO2017164476 A1 WO 2017164476A1
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WO
WIPO (PCT)
Prior art keywords
coil
core
power
wireless charging
matrix
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2016/011673
Other languages
English (en)
Korean (ko)
Inventor
박정용
채석병
이상용
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CENO TECH Co Ltd
Original Assignee
CENO TECH Co 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 CENO TECH Co Ltd filed Critical CENO TECH Co Ltd
Publication of WO2017164476A1 publication Critical patent/WO2017164476A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding

Definitions

  • the present invention relates to a core and a wireless charging system used in a wireless charging device, and more particularly, even if the receiver position changes through the core and the wireless charging system arranged in a matrix form automatically tracked according to the position of the core
  • the present invention relates to a matrix core for wireless charging and a wireless charging system using the same for improving wireless charging efficiency.
  • portable electronic devices such as mobile communication terminals and PDAs are equipped with a battery having a rechargeable secondary battery to supply power.
  • a separate charging device for supplying a portable electronic device by adjusting the home commercial power to an appropriate voltage is required.
  • the charging device and the battery are provided with separate contact terminals, respectively, so as to electrically connect the charging device and the battery by connecting the two contact terminals with each other.
  • the prior art is a device that is magnetically coupled to a battery device having a built-in receiver coil to charge a battery in a non-contact manner, which device arranges a plurality of transmit coils to induce charging power to the receive coil.
  • Transmission coil array Means for detecting a transmission coil magnetically coupled to the receiving coil, and selectively driving only the detected transmission coils, wherein the driving means selects only a transmission coil having a feedback response from the battery device. And determining whether there is a feedback response from the battery device within a predetermined time while sequentially driving the transmission coils of the transmission coil array, and selecting only a transmission coil having a feedback response from the battery device within the predetermined time. It relates to a charging device.
  • the wireless charger has become the exterior of consumers due to the problem of being charged only when it is matched in the correct position, and a problem for overcoming this needs to be developed.
  • the hardware of the array antenna and the matrix structure of the charging antenna is developed, the firmware algorithm for the positioning and the charge switching through the communication with the receiver, and the small antenna suitable for the matrix structure An array needs to be developed.
  • the present invention has been made to solve the problems described above, the present invention is a wireless charging matrix core for increasing the wireless charging efficiency by automatically tracking according to the position of the core even if the position change in the wireless charging device and wireless using the same
  • the purpose is to provide a charging system.
  • the present invention provides an array of charging antennas for matching the position of the wireless chargers and the core of the matrix structure, the matrix core for wireless charging for implementing the position tracking and charging switching through communication with the receiver and a wireless charging system using the same Its purpose is to.
  • the core 10 is formed of a manganese (Mn) -based material that blocks electromagnetic waves in the low frequency band to prevent the magnetic field generated from the coil 21 inserted into the coil insertion space 12 to be emitted to the side. do.
  • Mn manganese
  • the core body 11 has a coil extension space 14 connected to the coil insertion space 12 and the external space in a horizontal direction is formed can be extended to the coil 21 coupled to the core body 11 So that it is formed.
  • the matrix core is formed of a core 10 having one or more matrices and an array coil portion (not shown) coupled to the core 10 and extending in a matrix.
  • the core 10 and the array coil portion (not shown) are arranged in a rectangular shape of N * M shape, the array coil portion (not shown) in the column direction at the end of the core 10 connected in a row direction Connected.
  • Wireless charging system using the matrix core of the present invention a coil for transmitting power in an inductive coupling method, a wireless transmission module for wirelessly transmitting power, a wireless reception module including a rechargeable battery that controls the charge and discharge of the battery,
  • the wireless transmission module is coupled to the core arranged in a matrix structure for transmitting one or more transmission coils, the wireless reception module of the one or more transmission coils and magnetic It comprises a coil selection unit for selecting a transmission coil coupled to the.
  • the wireless receiving module is magnetically coupled to the transmission coil and receives a charging power, a rectifier for receiving an AC current of charging power from the receiving coil and converting it into a DC current, the rectifier to DC current through the rectifier It receives and stores the converted charging power, and comprises a power storage for providing the necessary power to the stored charging power to the electronics and a power control unit for controlling the input / output of the charging power input to the power storage.
  • the wireless transmission module transfers the charging power to the transmission coil, converts the DC current to convert the AC current, PWM signal generator for pulse width modulation of the AC current converted through the power driver, input A rectifier converts an AC current into a DC current and transmits a DC current to the power driver and the PWM signal generator, an AC power supply unit for supplying an AC current to the rectifier, and a coil selector, a power driver, and a PWM signal generator. It is configured to include a control unit.
  • the coil selector is characterized in that the transmission coil that is not magnetically coupled with the receiving coil does not provide charging power.
  • the present invention has the effect of preventing the magnetic field between the core to collide through the barrier wall of the core body to reduce the power efficiency.
  • the present invention can improve the reliability of the wireless charging system including a wireless charging receiver and a wireless charging transmitter, and can improve the competitiveness for related products such as portable terminals, battery packs and power tools, etc. have.
  • 1 is a view showing the structure of the core of the present invention.
  • FIG. 2 is a diagram showing a matrix core of the present invention.
  • FIG 3 is a view showing a coupling relationship between a core and a coil.
  • FIG. 4 is a cross-sectional view of the combined state of the core and the coil of the present invention.
  • FIG 5 is an exemplary view showing magnetic field diffusion of the core of the present invention.
  • Figure 6 is a block diagram showing a wireless charging system using a matrix core according to an embodiment of the present invention.
  • FIG. 7 is a diagram illustrating a switching circuit according to an embodiment of the present invention.
  • An object of the present invention is to provide a wireless charging matrix core and a wireless charging system using the same to automatically track the position of the core in the wireless charging device to increase the wireless charging efficiency by automatically tracking according to the position of the core.
  • FIG. 1 is a view showing the structure of the core of the present invention
  • Figure 2 is a view showing a matrix core of the present invention
  • Figure 3 is a view showing a coupling relationship between the core and the coil
  • Figure 4 is a core and coil of the present invention Is a view showing a cross-sectional view of the combined state
  • Figure 5 is an exemplary view showing the magnetic field diffusion of the core of the present invention.
  • the wireless charging device matrix core of the present invention is interposed with a coil 21 of the spring form to express a magnetic field, the core 10 formed to surround the outer side of the coil and the top is open; consists of a magnetic field of the coil It is a technical feature to transmit and receive the charging power of the wireless charging device is concentrated in the direction.
  • the core is a core body formed of a square pillar of round corners, and the upper portion of the core body to the core body A coil-shaped coil inserting space is formed, and a barrier wall for preventing a magnetic field from being emitted outward of the coil inserting space and a coil coupled to an upper direction of the core body are configured.
  • the coil may be formed in the form of a spring coil, which is not limited to the type of coil.
  • the core is formed by further forming a core pillar in which the coil is mounted in the inner direction of the strip-shaped coil insertion space.
  • a cylindrical inner space is created, and a core pillar for mounting it is formed.
  • the core body is preferably formed of a manganese (Mn) -based material that blocks electromagnetic waves in the low frequency band to prevent the magnetic field generated from the coil inserted into the coil insertion space to be emitted to the side.
  • Mn manganese
  • the core body is formed with a coil extension space connecting the coil insertion space and the external space in a horizontal direction, the coil extension space is formed so that the coil coupled to the core body can be extended.
  • the matrix core is formed of a core 10 having one or more matrices and an array coil portion (not shown) coupled to the core 10 and extending in a matrix.
  • the array coil unit is to say that each coil is formed extending in a state coupled to the core, which will be known to those skilled in the art.
  • the core 10 and the array coil portion (not shown) are arranged in a rectangular shape of N * M shape, the array coil portion (not shown) is connected in the column direction at the end of the core 10 connected in a row direction .
  • a matrix core having a 4 * 4 shape is not limited thereto.
  • FIG. 6 is a block diagram showing a wireless charging system using a matrix core according to an embodiment of the present invention
  • Figure 7 is a view showing a switching circuit according to an embodiment of the present invention.
  • the wireless charging system using the matrix core of the present invention a coil for transmitting power in an inductive coupling method, a wireless transmission module for wirelessly transmitting power, and controls the charge and discharge of the battery And a wireless receiving module including a rechargeable battery, wherein in the wireless charging system using a matrix core, the wireless transmitting module is coupled to a core arranged in a matrix structure to transmit charging power; It comprises a coil selection unit for selecting a transmission coil magnetically coupled with the wireless receiving module of the one or more transmission coils.
  • the wireless receiving module is magnetically coupled to the transmission coil and receives a charging power, a rectifier for receiving an AC current of charging power from the receiving coil and converting it into a DC current, the rectifier to DC current through the rectifier It receives and stores the converted charging power, and comprises a power storage for providing the necessary power to the stored charging power to the electronics and a power control unit for controlling the input / output of the charging power input to the power storage.
  • the power storage unit may be formed of a rechargeable battery in the form of a battery cell, and may be electrically connected to a charging circuit to charge electrical energy.
  • the wireless transmission module transfers the charging power to the transmission coil, converts the DC current to convert the AC current, PWM signal generator for pulse width modulation of the AC current converted through the power driver, input A rectifier converts an AC current into a DC current and transmits a DC current to the power driver and the PWM signal generator, an AC power supply unit for supplying an AC current to the rectifier, and a coil selector, a power driver, and a PWM signal generator. It is configured to include a control unit.
  • the coil selector is characterized in that the transmission coil that is not magnetically coupled with the receiving coil does not provide charging power.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne une structure de bobine de matrice et un système de charge sans fil utilisé dans un appareil de charge sans fil, dans lequel un noyau (10) utilisé dans l'appareil de charge sans fil comprend : un corps de noyau (11) formé par un montant carré ayant des coins arrondis; un espace d'insertion de bobine (12) ayant la forme d'une bande autour d'un centre du corps de noyau (11) au niveau d'une extrémité supérieure du corps de noyau (11); une paroi de blocage (13) formée dans une direction vers l'extérieur de l'espace d'insertion de bobine (12) et empêchant l'émission d'un champ magnétique; et une bobine (21) couplée dans une direction d'extrémité supérieure du corps de noyau (11). En tant que tel, un récepteur de charge sans fil peut assurer une fourniture stable d'énergie électrique, même si le récepteur de charge sans fil bouge pendant qu'il est placé dans un émetteur de charge sans fil, et l'invention a pour effet qu'une réduction du rendement énergétique due à une collision de champ magnétique parmi les noyaux est empêchée par la paroi de blocage du corps de noyau.
PCT/KR2016/011673 2016-03-24 2016-10-18 Noyau de matrice pour charge sans fil et système de charge sans fil utilisant celui-ci Ceased WO2017164476A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0035346 2016-03-24
KR1020160035346A KR101756677B1 (ko) 2016-03-24 2016-03-24 무선충전용 매트릭스 코어 및 이를 이용한 무선충전시스템

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WO2017164476A1 true WO2017164476A1 (fr) 2017-09-28

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PCT/KR2016/011673 Ceased WO2017164476A1 (fr) 2016-03-24 2016-10-18 Noyau de matrice pour charge sans fil et système de charge sans fil utilisant celui-ci

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WO (1) WO2017164476A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12505943B2 (en) 2019-09-25 2025-12-23 Samsung Electronics Co., Ltd. Multilayer inductor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102401160B1 (ko) * 2019-05-14 2022-05-24 한양대학교 에리카산학협력단 고속 고전압 전력용 반도체 소자를 구동하기 위한 절연성이 향상된 스위칭 구동 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070078889A (ko) * 2006-01-31 2007-08-03 엘에스전선 주식회사 코일 어레이를 구비한 무접점 충전장치, 무접점 충전시스템 및 충전 방법
KR20140065364A (ko) * 2012-11-21 2014-05-29 동부씨엔아이 주식회사 무선 충전 및 근거리 통신 동시 구현용 하이브리드 자성시트 및 이를 포함하는 하이브리드 전자부품 모듈
JP2014220889A (ja) * 2013-05-07 2014-11-20 昭和電工株式会社 ワイヤレス給電方法及びワイヤレス給電システム
JP2015012066A (ja) * 2013-06-27 2015-01-19 Tdk株式会社 ワイヤレス電力伝送用コイルユニット
KR20150023684A (ko) * 2012-06-11 2015-03-05 파워바이프록시 리미티드 무선 전력 전송 시스템에서 사용하기 위한 자기 투과성 코어

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070078889A (ko) * 2006-01-31 2007-08-03 엘에스전선 주식회사 코일 어레이를 구비한 무접점 충전장치, 무접점 충전시스템 및 충전 방법
KR20150023684A (ko) * 2012-06-11 2015-03-05 파워바이프록시 리미티드 무선 전력 전송 시스템에서 사용하기 위한 자기 투과성 코어
KR20140065364A (ko) * 2012-11-21 2014-05-29 동부씨엔아이 주식회사 무선 충전 및 근거리 통신 동시 구현용 하이브리드 자성시트 및 이를 포함하는 하이브리드 전자부품 모듈
JP2014220889A (ja) * 2013-05-07 2014-11-20 昭和電工株式会社 ワイヤレス給電方法及びワイヤレス給電システム
JP2015012066A (ja) * 2013-06-27 2015-01-19 Tdk株式会社 ワイヤレス電力伝送用コイルユニット

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12505943B2 (en) 2019-09-25 2025-12-23 Samsung Electronics Co., Ltd. Multilayer inductor

Also Published As

Publication number Publication date
KR101756677B1 (ko) 2017-07-11

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