JP2012010533A - Power transmission system, and power supply device and portable apparatus therefor - Google Patents

Power transmission system, and power supply device and portable apparatus therefor Download PDF

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JP2012010533A
JP2012010533A JP2010145731A JP2010145731A JP2012010533A JP 2012010533 A JP2012010533 A JP 2012010533A JP 2010145731 A JP2010145731 A JP 2010145731A JP 2010145731 A JP2010145731 A JP 2010145731A JP 2012010533 A JP2012010533 A JP 2012010533A
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coil
power
spiral inductor
inner diameter
transmission system
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Shinji Goma
真治 郷間
Satoshi Shinoda
悟史 篠田
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Murata Manufacturing Co Ltd
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Murata Manufacturing Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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    • Y02E60/10—Energy storage using batteries

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Abstract

PROBLEM TO BE SOLVED: To provide a power transmission system capable of attaining miniaturization of a coil on a power reception side while maintaining capability of transmitting electric power, and to provide a power supply device and a portable apparatus therefor.SOLUTION: The power transmission system 1 comprises a charging station (a power supply device) 2 that supplies electric power and a mobile phone (a power reception device) 3 that receives supply of the electric power. The charging station 2 includes a flat plate-like coil (a first coil) 21 and a magnet 22 disposed on an inside-diameter portion of the coil 21. The mobile phone 3 has a spiral inductor (a second coil) 31 whose outside diameter is substantially the same as or smaller than an inside diameter of the coil 21. The spiral inductor 31 is constituted of a soft magnetic substance layer 31a and a coil conductor 31b.

Description

本発明は、物理的に接続することなく電力を伝送する電力伝送システム、該電力伝送システムの給電装置及び携帯機器に関する。   The present invention relates to a power transmission system that transmits power without being physically connected, a power supply apparatus for the power transmission system, and a portable device.

近年、非接触で電力を伝送して充電する通信機等の電子機器が開発されている。電子機器において非接触で電力を伝送するためには、電力の給電側の電子機器と、電力の受電側の電子機器との双方に非接触型電力伝送用のコイルを設ける必要がある。   2. Description of the Related Art In recent years, electronic devices such as communication devices that are charged by transmitting power without contact have been developed. In order to transmit electric power in an electronic device in a non-contact manner, it is necessary to provide a coil for non-contact power transmission in both the electronic device on the power supply side and the electronic device on the power reception side.

また、電力の給電側のコイルと、電力の受電側のコイルとで、位置合わせを行わないと、効果的に電力を伝送することができない。そこで、例えば特許文献１では、電力の給電側の電子機器、受電側の電子機器の双方のコイルの中心部分に磁石を配置し、両磁石間の引き合う力を利用して電力の給電側のコイルと、電力の受電側のコイルとで、位置合わせを行っていた。   Moreover, unless alignment is performed between the coil on the power feeding side and the coil on the power receiving side, the power cannot be effectively transmitted. Therefore, in Patent Document 1, for example, a magnet is arranged in the center of both coils of the power supply side electronic device and the power reception side electronic device, and the power supply side coil is utilized by using the attractive force between the two magnets. And positioning with the coil on the power receiving side.

特開２００９−０９５０７２号公報JP 2009-095072 A

しかし、電力の給電側の電子機器、受電側の電子機器の双方のコイルの中心部分に磁石を配置するためには、コイル自体をある程度の大きさにする必要があり、小型化することが困難になるという問題点があった。特に受電側の電子機器、例えば携帯電話機に組み込む場合、コイルが一定以上の大きさを要することから、裏蓋と一体化させる案が有力であるが、電池近傍における発熱の問題等があり、コイルの大きさが携帯電話機の設計上の大きな制約条件となっている。   However, in order to place a magnet in the central part of the coil of both the electronic device on the power supply side and the electronic device on the power reception side, it is necessary to make the coil itself a certain size, and it is difficult to reduce the size. There was a problem of becoming. In particular, when it is incorporated into an electronic device on the power receiving side, for example, a mobile phone, the coil needs to be larger than a certain size. Therefore, it is a good idea to integrate it with the back cover, but there is a problem of heat generation near the battery. This is a major constraint on the design of mobile phones.

本発明は、上記事情に鑑みてなされたものであり、電力を伝送する能力を維持しつつ、受電側のコイルを小型化することができる電力伝送システム、該電力伝送システムの給電装置及び携帯機器を提供することを目的とする。   The present invention has been made in view of the above circumstances, and can maintain a capability of transmitting power while reducing the size of a coil on a power receiving side, a power feeding device of the power transmission system, and a portable device The purpose is to provide.

上記目的を達成するために第１発明に係る電力伝送システムは、電力を供給する給電装置と、電力の供給を受ける受電装置とを備える電力伝送システムにおいて、前記給電装置は、平板状の第一のコイルと、該第一のコイルの内径部分に配置された磁石とを備え、前記受電装置は、前記第一のコイルの内径と略同じ又は該内径より小さい外径の第二のコイルを備え、該第二のコイルは、軟磁性体層とコイル導体とで構成されたスパイラルインダクタである。   In order to achieve the above object, a power transmission system according to a first aspect of the present invention is a power transmission system including a power supply device that supplies power and a power reception device that receives the supply of power. And a magnet disposed on an inner diameter portion of the first coil, and the power receiving device includes a second coil having an outer diameter substantially the same as or smaller than the inner diameter of the first coil. The second coil is a spiral inductor composed of a soft magnetic layer and a coil conductor.

また、第２発明に係る電力伝送システムは、第１発明において、前記スパイラルインダクタは、前記給電装置に対向している面側の漏れ磁束が、対向している該面側とは反対の面側の漏れ磁束より大きくなるようにしてある。   The power transmission system according to a second aspect of the present invention is the power transmission system according to the first aspect, wherein the spiral inductor has a surface on the opposite side to the surface facing the leakage magnetic flux on the surface facing the power feeding device. It is designed to be larger than the leakage magnetic flux.

また、第３発明に係る電力伝送システムは、第１又は第２発明において、前記スパイラルインダクタは、前記給電装置に対向している面側とは反対の面側に、回路基板を実装するようにしてある。   The power transmission system according to a third aspect of the present invention is the power transmission system according to the first or second aspect, wherein the spiral inductor has a circuit board mounted on a surface opposite to a surface facing the power feeding device. It is.

上記目的を達成するために第４発明に係る給電装置は、軟磁性体層とコイル導体とで構成されたスパイラルインダクタを備える受電装置に対して、電力を供給する給電装置であって、平板状のコイルと、該コイルの内径部分に配置された磁石とを備え、前記コイルの内径は、前記受電装置の前記コイル導体の外径と略同じ又は該外径より大きい。   In order to achieve the above object, a power feeding device according to a fourth aspect of the present invention is a power feeding device that supplies power to a power receiving device including a spiral inductor composed of a soft magnetic layer and a coil conductor, and has a flat plate shape. And a magnet disposed on an inner diameter portion of the coil, and the inner diameter of the coil is substantially the same as or larger than the outer diameter of the coil conductor of the power receiving device.

上記目的を達成するために第５発明に係る携帯機器は、平板状のコイルと、該コイルの内径部分に配置された磁石とを備える給電装置から電力の供給を受ける携帯機器であって、軟磁性体層とコイル導体とで構成されたスパイラルインダクタと、該スパイラルインダクタと離隔して配置され、二次電池を収納している電池収納部とを備え、前記コイル導体の外径は、前記給電装置の前記コイルの内径と略同じ又は該内径より小さい。   In order to achieve the above object, a portable device according to a fifth aspect of the present invention is a portable device that is supplied with electric power from a power feeding device that includes a flat coil and a magnet disposed on an inner diameter portion of the coil, and is a soft device. A spiral inductor composed of a magnetic material layer and a coil conductor; and a battery storage part that is spaced apart from the spiral inductor and stores a secondary battery. The outer diameter of the coil conductor is the power supply It is substantially the same as or smaller than the inner diameter of the coil of the apparatus.

第１発明では、給電装置が、平板状の第一のコイルと、該第一のコイルの内径部分に配置された磁石とを備え、受電装置が、第一のコイルの内径と略同じ又は該内径より小さい外径の第二のコイルを備えるので、給電装置の第一のコイルと受電装置の第二のコイルとの結合係数は低下するが、第一のコイルの内径部分に配置された磁石により、エネルギーの保持と損失との関係を示す指標であるＱ値を高くすることができるため、電力を伝送する能力を維持することができる。また、第一のコイルの内径部分に配置された磁石と受電装置の軟磁性体層との間の引き合う力を利用して、給電装置の第一のコイルと受電装置の第二のコイルとの位置合わせを容易に行うことができる。さらに、受電装置の第二のコイルをスパイラルインダクタとすることで、受電側（受電装置）のコイル（第二のコイル）を小型化することができる。   In the first invention, the power supply device includes a flat plate-like first coil and a magnet disposed on an inner diameter portion of the first coil, and the power receiving device is substantially the same as the inner diameter of the first coil, or the Since the second coil having the outer diameter smaller than the inner diameter is provided, the coupling coefficient between the first coil of the power feeding device and the second coil of the power receiving device is reduced, but the magnet disposed in the inner diameter portion of the first coil Thus, the Q value, which is an index indicating the relationship between energy retention and loss, can be increased, so that the ability to transmit power can be maintained. Further, by utilizing the attractive force between the magnet disposed on the inner diameter portion of the first coil and the soft magnetic layer of the power receiving device, the first coil of the power feeding device and the second coil of the power receiving device Positioning can be performed easily. Furthermore, the coil (second coil) on the power receiving side (power receiving device) can be reduced in size by using the second coil of the power receiving device as a spiral inductor.

第２発明では、スパイラルインダクタは、給電装置に対向している面側の漏れ磁束が、対向している該面側とは反対の面側の漏れ磁束よりも大きくなるようにしてあるので、給電装置に対向している面側とは反対の面側からの磁束の漏れを抑えて、給電装置の第一のコイルとの電磁結合に利用される磁束を大きくすることができ、電力を伝送する能力を維持することができる。   In the second invention, the spiral inductor is configured such that the leakage magnetic flux on the surface facing the power feeding device is larger than the leakage magnetic flux on the surface opposite to the facing surface. By suppressing leakage of magnetic flux from the surface opposite to the surface facing the device, the magnetic flux used for electromagnetic coupling with the first coil of the power supply device can be increased, and power is transmitted. Ability can be maintained.

第３発明では、スパイラルインダクタは、給電装置に対向している面とは反対の面側に、回路基板を実装するようにしてあるので、スパイラルインダクタと回路基板とで構成されるコイルモジュールを小型化して、受電装置を小型化することができる。   In the third aspect of the invention, the spiral inductor is configured such that the circuit board is mounted on the surface opposite to the surface facing the power feeding device, so that the coil module composed of the spiral inductor and the circuit board is reduced in size. Thus, the power receiving device can be reduced in size.

第４発明では、軟磁性体層とコイル導体とで構成されたスパイラルインダクタを備える受電装置に対して、電力を供給する給電装置であって、平板状のコイルと、該コイルの内径部分に配置された磁石とを備え、コイルの内径は、受電装置のコイル導体の外径と略同じ又は該外径より大きいので、給電装置のコイルと受電装置のコイル導体との結合係数は低下するが、コイルの内径部分に配置された磁石により、Ｑ値を高くすることができるため、電力を伝送する能力を維持することができる。また、コイルの内径部分に配置された磁石と受電装置の軟磁性体層との間の引き合う力を利用して、給電装置のコイルと受電装置のコイル導体との位置合わせを容易に行うことができる。   According to a fourth aspect of the present invention, there is provided a power feeding device that supplies power to a power receiving device including a spiral inductor composed of a soft magnetic material layer and a coil conductor, and is arranged on a flat coil and an inner diameter portion of the coil The inner diameter of the coil is substantially the same as or larger than the outer diameter of the coil conductor of the power receiving device, so that the coupling coefficient between the coil of the power feeding device and the coil conductor of the power receiving device decreases. Since the Q value can be increased by the magnet disposed in the inner diameter portion of the coil, the ability to transmit electric power can be maintained. Further, it is possible to easily align the coil of the power feeding device and the coil conductor of the power receiving device by using the attractive force between the magnet disposed on the inner diameter portion of the coil and the soft magnetic layer of the power receiving device. it can.

第５発明では、平板状のコイルと、該コイルの内径部分に配置された磁石とを備える給電装置から電力の供給を受ける携帯機器であって、軟磁性体層とコイル導体とで構成されたスパイラルインダクタと、該スパイラルインダクタと離隔して配置され、二次電池を収納している電池収納部とを備えるので、給電装置から電力の供給を受けてスパイラルインダクタが発熱しても電池収納部に熱が伝わりにくく、二次電池の劣化を抑えることができる。また、スパイラルインダクタのコイル導体の外径は、給電装置のコイルの内径と略同じ又は該内径より小さいので、携帯機器を小型化することができる。さらに、給電装置の磁石とスパイラルインダクタの軟磁性体層との間の引き合う力を利用して、給電装置のコイルとスパイラルインダクタのコイル導体との位置合わせを容易に行うことができる。   According to a fifth aspect of the present invention, there is provided a portable device that is supplied with electric power from a power supply device that includes a flat coil and a magnet disposed on an inner diameter portion of the coil, and includes a soft magnetic layer and a coil conductor. Since it includes a spiral inductor and a battery storage unit that is spaced apart from the spiral inductor and stores a secondary battery, even if the spiral inductor generates heat when receiving power from the power supply device, the battery storage unit It is difficult for heat to be transmitted and deterioration of the secondary battery can be suppressed. Further, since the outer diameter of the coil conductor of the spiral inductor is substantially the same as or smaller than the inner diameter of the coil of the power feeding device, the portable device can be reduced in size. Furthermore, it is possible to easily align the coil of the power supply device and the coil conductor of the spiral inductor using the attractive force between the magnet of the power supply device and the soft magnetic layer of the spiral inductor.

本発明に係る電力伝送システムでは、給電装置が、平板状の第一のコイルと、該第一のコイルの内径部分に配置された磁石とを備え、受電装置が、第一のコイルの内径と略同じ又は該内径より小さい外径の第二のコイルを備えるので、給電装置の第一のコイルと受電装置の第二のコイルとの結合係数は低下するが、第一のコイルの内径部分に配置された磁石により、エネルギーの保持と損失との関係を示す指標であるＱ値を高くすることができるため、電力を伝送する能力を維持することができる。また、第一のコイルの内径部分に配置された磁石と受電装置の軟磁性体層との間の引き合う力を利用して、給電装置の第一のコイルと受電装置の第二のコイルとの位置合わせを容易に行うことができる。さらに、受電装置の第二のコイルをスパイラルインダクタとすることで、受電側（受電装置）のコイル（第二のコイル）を小型化することができる。   In the power transmission system according to the present invention, the power feeding device includes a flat plate-shaped first coil and a magnet disposed on an inner diameter portion of the first coil, and the power receiving device has an inner diameter of the first coil. Since a second coil having an outer diameter that is substantially the same or smaller than the inner diameter is provided, the coupling coefficient between the first coil of the power feeding device and the second coil of the power receiving device decreases, but the inner diameter portion of the first coil Since the arranged magnets can increase the Q value, which is an index indicating the relationship between energy retention and loss, the ability to transmit power can be maintained. Further, by utilizing the attractive force between the magnet disposed on the inner diameter portion of the first coil and the soft magnetic layer of the power receiving device, the first coil of the power feeding device and the second coil of the power receiving device Positioning can be performed easily. Furthermore, the coil (second coil) on the power receiving side (power receiving device) can be reduced in size by using the second coil of the power receiving device as a spiral inductor.

また、本発明に係る給電装置は、軟磁性体層とコイル導体とで構成されたスパイラルインダクタを備える受電装置に対して、電力を供給する給電装置であって、平板状のコイルと、該コイルの内径部分に配置された磁石とを備え、コイルの内径は、受電装置のコイル導体の外径と略同じ又は該外径より大きいので、給電装置のコイルと受電装置のコイル導体との結合係数は低下するが、コイルの内径部分に配置された磁石により、Ｑ値を高くすることができるため、電力を伝送する能力を維持することができる。   A power supply device according to the present invention is a power supply device that supplies power to a power reception device including a spiral inductor composed of a soft magnetic material layer and a coil conductor, and includes a flat coil and the coil And the inner diameter of the coil is substantially the same as or larger than the outer diameter of the coil conductor of the power receiving device, so that the coupling coefficient between the coil of the power feeding device and the coil conductor of the power receiving device However, since the Q value can be increased by the magnet disposed in the inner diameter portion of the coil, the ability to transmit electric power can be maintained.

さらに、本発明に係る携帯機器は、平板状のコイルと、該コイルの内径部分に配置された磁石とを備える給電装置から電力の供給を受ける携帯機器であって、軟磁性体層とコイル導体とで構成されたスパイラルインダクタと、該スパイラルインダクタと離隔して配置され、二次電池を収納している電池収納部とを備えるので、給電装置から電力の供給を受けてスパイラルインダクタが発熱しても電池収納部に熱が伝わりにくく、二次電池の劣化を抑えることができる。   Furthermore, a portable device according to the present invention is a portable device that is supplied with electric power from a power supply device that includes a flat coil and a magnet disposed on an inner diameter portion of the coil, and includes a soft magnetic layer and a coil conductor. And a battery storage part that is spaced apart from the spiral inductor and stores the secondary battery, the spiral inductor generates heat upon receiving power supply from the power supply device. However, it is difficult for heat to be transmitted to the battery housing, and the deterioration of the secondary battery can be suppressed.

本発明の実施の形態に係る電力伝送システムの構成を示す模式図である。It is a schematic diagram which shows the structure of the electric power transmission system which concerns on embodiment of this invention. 本発明の実施の形態に係る充電台が備えるコイル、磁石、回路基板の構成を示す模式図である。It is a schematic diagram which shows the structure of the coil with which the charging stand which concerns on embodiment of this invention is equipped, a magnet, and a circuit board. 本発明の実施の形態に係るスパイラルインダクタの構成を示す断面図である。It is sectional drawing which shows the structure of the spiral inductor which concerns on embodiment of this invention. 本発明の実施の形態に係るスパイラルインダクタの構成を分解して示す平面図である。It is a top view which decomposes | disassembles and shows the structure of the spiral inductor which concerns on embodiment of this invention. 本発明の実施の形態に係る電力伝送システムの回路構成の一部を示す回路図である。It is a circuit diagram which shows a part of circuit structure of the electric power transmission system which concerns on embodiment of this invention.

以下、本発明の実施の形態における電力伝送システム、該電力伝送システムの給電装置及び携帯機器について、図面を用いて具体的に説明する。以下の実施の形態は、特許請求の範囲に記載された発明を限定するものではなく、実施の形態の中で説明されている特徴的事項の組み合わせの全てが解決手段の必須事項であるとは限らないことは言うまでもない。   Hereinafter, a power transmission system, a power supply device of the power transmission system, and a portable device according to an embodiment of the present invention will be specifically described with reference to the drawings. The following embodiments do not limit the invention described in the claims, and all combinations of characteristic items described in the embodiments are essential to the solution. It goes without saying that it is not limited.

なお、本発明の実施の形態に係る電力伝送システムの携帯機器には、例えばミュージックプレイヤー、携帯電話機、キーレスシステムの携帯機等が含まれるが、以下の説明では、携帯機器が携帯電話機である場合について説明する。   The portable device of the power transmission system according to the embodiment of the present invention includes, for example, a music player, a portable phone, a portable device of a keyless system, etc., but in the following description, the portable device is a portable phone. Will be described.

図１は、本発明の実施の形態に係る電力伝送システムの構成を示す模式図である。図１（ａ）は、充電台に携帯電話機を載置した状態の断面を示す模式図、図１（ｂ）は、携帯電話機の充電台に載置する側の面の断面を示す模式図である。本発明の実施の形態に係る電力伝送システム１は、電力を供給する給電装置である充電台２、電力の供給を受ける受電装置である携帯電話機３を備える。充電台２は、平板状のコイル（第一のコイル）２１、コイル２１の内径部分に配置された磁石２２、コイル２１から供給する電力を制御する複数の電子部品２３ａを実装した回路基板２３を備える。回路基板２３は、電源であるＡＣアダプタ４と接続されている。   FIG. 1 is a schematic diagram showing a configuration of a power transmission system according to an embodiment of the present invention. FIG. 1A is a schematic diagram showing a cross section of a state where a mobile phone is placed on a charging stand, and FIG. 1B is a schematic view showing a cross section of a surface of the mobile phone on the side where the mobile phone is placed. is there. A power transmission system 1 according to an embodiment of the present invention includes a charging stand 2 that is a power supply device that supplies power, and a mobile phone 3 that is a power receiving device that receives power. The charging stand 2 includes a circuit board 23 on which a flat coil (first coil) 21, a magnet 22 disposed on an inner diameter portion of the coil 21, and a plurality of electronic components 23 a that control power supplied from the coil 21 are mounted. Prepare. The circuit board 23 is connected to an AC adapter 4 that is a power source.

図２は、本発明の実施の形態に係る充電台２が備えるコイル２１、磁石２２、回路基板２３の構成を示す模式図である。コイル２１は、銅線等の導体を、同一平面で渦巻状に形成している。コイル２１の外形は、略円形に形成しているが、略楕円形に形成しても、略四角形に形成しても良い。コイル２１は、フェライト等の磁性体材料を粉体にして混練した硬化性樹脂で形成された樹脂構造体２４に内蔵されている。ただし、コイル２１は、携帯電話機３を載置する側の面にて、樹脂構造体２４から露出している。なお、樹脂構造体２４に代えて、コイル２１の一面に磁性体シートを固着しても良い。   FIG. 2 is a schematic diagram showing the configuration of the coil 21, the magnet 22, and the circuit board 23 provided in the charging stand 2 according to the embodiment of the present invention. The coil 21 has a conductor such as a copper wire formed in a spiral shape on the same plane. The outer shape of the coil 21 is formed in a substantially circular shape, but may be formed in a substantially elliptical shape or a substantially rectangular shape. The coil 21 is built in a resin structure 24 formed of a curable resin obtained by kneading a magnetic material such as ferrite into powder. However, the coil 21 is exposed from the resin structure 24 on the surface on which the mobile phone 3 is placed. Instead of the resin structure 24, a magnetic sheet may be fixed to one surface of the coil 21.

磁石２２は、アルニコ磁石、フェライト磁石、ネオジム磁石等の永久磁石を用いて、コイル２１の内径部分に配置されている。磁石２２の外径は、コイル２１の内径の約８０％以下で、コイル２１の中心を含むコイル２１の内径に磁石２２が配置されている。なお、磁石２２の外径をコイル２１の内径の約８０％以下に限定しているのは、充電台２と後述する携帯電話機３との位置合わせを行う場合に、携帯電話機３のスパイラルインダクタ３１をコイル２１の中心に引き込むためである。   The magnet 22 is disposed on the inner diameter portion of the coil 21 using a permanent magnet such as an alnico magnet, a ferrite magnet, or a neodymium magnet. The outer diameter of the magnet 22 is about 80% or less of the inner diameter of the coil 21, and the magnet 22 is disposed on the inner diameter of the coil 21 including the center of the coil 21. The reason why the outer diameter of the magnet 22 is limited to about 80% or less of the inner diameter of the coil 21 is that the spiral inductor 31 of the mobile phone 3 is used when the charging stand 2 and the mobile phone 3 described later are aligned. This is because the coil 21 is drawn into the center of the coil 21.

回路基板２３は、コイル２１で伝送する電力を制御する複数の電子部品２３ａが実装してあり、例えば、少なくとも電力制御回路、インバータ回路を構成する電子部品２３ａを実装してある。回路基板２３は、コイル２１との接続のためのコネクタ２３ｂと、ＡＣアダプタ４との接続のためのコネクタ２３ｃとを設けてある。   The circuit board 23 is mounted with a plurality of electronic components 23a for controlling the power transmitted by the coil 21, for example, at least an electronic component 23a constituting a power control circuit and an inverter circuit. The circuit board 23 is provided with a connector 23 b for connection with the coil 21 and a connector 23 c for connection with the AC adapter 4.

図１に戻って、携帯電話機３は、スパイラルインダクタ（第二のコイル）３１、スパイラルインダクタ３１と離隔して配置され、二次電池３２を収納している電池収納部３３を備える。スパイラルインダクタ３１は、軟磁性体層３１ａ、コイル導体３１ｂとで構成され、コイル導体３１ｂの外径は、充電台２のコイル２１の内径と略同じであるか、又は該内径より小さい。コイル導体３１ｂの外径を、充電台２のコイル２１の内径と略同じ又は該内径より小さくすることでスパイラルインダクタ３１を小型化することができ、スパイラルインダクタ３１を組み込んだ携帯電話機３を小型化することができる。なお、充電台２のコイル２１に対してスパイラルインダクタ３１のコイル導体３１ｂを小さくすると、充電台２のコイル２１と携帯電話機３のスパイラルインダクタ３１とを電磁結合させて電力を伝送する場合の結合係数が低下して、電力を伝送する能力（伝送効率）が低下する。しかし、本発明の実施の形態に係る電力伝送システム１では、充電台２のコイル２１の内径部分に磁石２２を配置することにより、エネルギーの保持と損失との関係を示す指標であるＱ値を高くすることができるため、電力を伝送する能力を維持することができる。   Returning to FIG. 1, the mobile phone 3 includes a spiral inductor (second coil) 31, a battery storage portion 33 that is spaced apart from the spiral inductor 31 and stores the secondary battery 32. The spiral inductor 31 includes a soft magnetic layer 31a and a coil conductor 31b. The outer diameter of the coil conductor 31b is substantially the same as or smaller than the inner diameter of the coil 21 of the charging stand 2. By making the outer diameter of the coil conductor 31b substantially the same as or smaller than the inner diameter of the coil 21 of the charging stand 2, the spiral inductor 31 can be reduced in size, and the mobile phone 3 incorporating the spiral inductor 31 can be reduced in size. can do. If the coil conductor 31b of the spiral inductor 31 is made smaller than the coil 21 of the charging base 2, the coupling coefficient in the case where the coil 21 of the charging base 2 and the spiral inductor 31 of the mobile phone 3 are electromagnetically coupled to transmit power. Decreases, and the ability to transmit power (transmission efficiency) decreases. However, in the power transmission system 1 according to the embodiment of the present invention, by arranging the magnet 22 in the inner diameter portion of the coil 21 of the charging stand 2, the Q value that is an index indicating the relationship between energy retention and loss is obtained. Since the power can be increased, the ability to transmit power can be maintained.

また、スパイラルインダクタ３１を小型化することで、スパイラルインダクタ３１を、二次電池３２を収納している電池収納部３３と離隔して配置することが可能となる。つまり、スパイラルインダクタ３１を電池収納部３３に接触することなく配置することで、充電台２から電力の供給を受けてスパイラルインダクタ３１が発熱しても電池収納部３３に熱が伝わりにくく、二次電池３２の劣化を抑えることができる。   Further, by reducing the size of the spiral inductor 31, the spiral inductor 31 can be arranged separately from the battery storage portion 33 that stores the secondary battery 32. That is, by disposing the spiral inductor 31 without contacting the battery housing portion 33, even when the spiral inductor 31 generates heat when receiving power from the charging stand 2, heat is not easily transmitted to the battery housing portion 33, and the secondary Deterioration of the battery 32 can be suppressed.

さらに、スパイラルインダクタ３１について詳しく説明する。図３は、本発明の実施の形態に係るスパイラルインダクタ３１の構成を示す断面図である。図４は、本発明の実施の形態に係るスパイラルインダクタ３１の構成を分解して示す平面図である。図４（ａ）は第一層３１１を、図４（ｂ）は第二層３１２を、図４（ｃ）は第三層３１３を、図４（ｄ）は第四層３１４を、図４（ｅ）は第五層３１５を、図４（ｆ）は第六層３１６を、図４（ｇ）は第七層３１７を、図４（ｈ）は第八層３１８を、それぞれ示している。図３に示すように、スパイラルインダクタ３１は、八つの層３１１〜３１８、第一層３１１の一方の面に形成されたランド電極３２０で構成されている。第一層３１１は、非磁性フェライトからなる非磁性体層３１ｃである。第二層３１２は、透磁率の高い軟磁性材料（例えば、Ｎｉ−Ｚｎ−Ｃｕフェライト等のフェライト系材料）からなる軟磁性体層３１ａである。透磁率の高い軟磁性材料からなる軟磁性体層３１ａの第三層３１３、第四層３１４、第六層３１６及び第七層３１７に、導電性材料（例えば、Ｃｕ等）からなるコイル導体３１ｂが形成されている。非磁性フェライトからなる非磁性体層３１ｃの第五層３１５及び第八層３１８に、導電性材料からなるコイル導体３１ｂが形成されている。   Further, the spiral inductor 31 will be described in detail. FIG. 3 is a cross-sectional view showing the configuration of the spiral inductor 31 according to the embodiment of the present invention. FIG. 4 is an exploded plan view showing the configuration of the spiral inductor 31 according to the embodiment of the present invention. 4A shows the first layer 311, FIG. 4B shows the second layer 312, FIG. 4C shows the third layer 313, FIG. 4D shows the fourth layer 314, FIG. (E) shows the fifth layer 315, FIG. 4 (f) shows the sixth layer 316, FIG. 4 (g) shows the seventh layer 317, and FIG. 4 (h) shows the eighth layer 318. . As shown in FIG. 3, the spiral inductor 31 includes eight layers 311 to 318 and a land electrode 320 formed on one surface of the first layer 311. The first layer 311 is a nonmagnetic layer 31c made of nonmagnetic ferrite. The second layer 312 is a soft magnetic layer 31a made of a soft magnetic material having a high magnetic permeability (for example, a ferrite-based material such as Ni—Zn—Cu ferrite). A coil conductor 31b made of a conductive material (for example, Cu) is provided on the third layer 313, the fourth layer 314, the sixth layer 316, and the seventh layer 317 of the soft magnetic layer 31a made of a soft magnetic material having a high magnetic permeability. Is formed. A coil conductor 31b made of a conductive material is formed on the fifth layer 315 and the eighth layer 318 of the nonmagnetic layer 31c made of nonmagnetic ferrite.

軟磁性体層３１ａ及び非磁性体層３１ｃに形成されているコイル導体３１ｂは、半径ｒ１の円形の一部を欠いた形状を有し、それぞれの層に形成されたコイル導体３１ｂは、互いに電気的に接続されて一つのコイルを構成している。第三層３１３及び第八層３１８に形成されているコイル導体３１ｂには引き出し配線３１ｄが設けられている。第一層３１１乃至第八層３１８は、それぞれの層に形成されたコイル導体３１ｂは、中心を通る法線を共有するように積層され、スパイラルインダクタ３１を構成している。第三層３１３のコイル導体３１ｂに設けられた引き出し配線３１ｄが一つのコイルの一端であり一方のランド電極３２０に接続されている。第八層３１８に形成されているコイル導体３１ｂに設けられた引き出し配線３１ｄが一つのコイルの他端であり他方のランド電極３２０に接続されている。なお、図３及び図４で示したスパイラルインダクタ３１の構成は例示であり、軟磁性体層３１ａとコイル導体３１ｂとで構成されたスパイラルインダクタ３１であれば、特に限定されない。   The coil conductor 31b formed in the soft magnetic layer 31a and the nonmagnetic layer 31c has a shape lacking a part of a circle having a radius r1, and the coil conductors 31b formed in the respective layers are electrically connected to each other. Are connected to form one coil. The coil conductor 31b formed in the third layer 313 and the eighth layer 318 is provided with a lead wiring 31d. In the first layer 311 to the eighth layer 318, the coil conductors 31 b formed in the respective layers are laminated so as to share a normal passing through the center, thereby forming a spiral inductor 31. A lead wire 31 d provided on the coil conductor 31 b of the third layer 313 is one end of one coil and is connected to one land electrode 320. A lead wire 31 d provided on the coil conductor 31 b formed on the eighth layer 318 is the other end of one coil and is connected to the other land electrode 320. The configuration of the spiral inductor 31 shown in FIGS. 3 and 4 is merely an example, and is not particularly limited as long as the spiral inductor 31 is configured by the soft magnetic layer 31a and the coil conductor 31b.

また、図３に示すスパイラルインダクタ３１は、コイル導体３１ｂが形成されていない軟磁性体層３１ａの第二層３１２を備えることで、ランド電極３２０が形成されている面側から漏れる磁束を、ランド電極３２０が形成されていない面側から漏れる磁束に比べて小さくすることができる。ランド電極３２０が形成されていない面側が、充電台２に対向している面側となるので、スパイラルインダクタ３１は、充電台２に対向している面側の漏れ磁束が、対向している該面側とは反対の面側の漏れ磁束に比べて大きくしてある。そのため、本発明の実施の形態に係る電力伝送システム１は、スパイラルインダクタ３１の、充電台２に対向している面側とは反対の面側からの磁束の漏れを抑えて、充電台２のコイル２１との電磁結合に利用される磁束を大きくすることができ、電力を伝送する能力を維持することができる。   Further, the spiral inductor 31 shown in FIG. 3 includes the second layer 312 of the soft magnetic layer 31a in which the coil conductor 31b is not formed, so that the magnetic flux leaking from the surface side on which the land electrode 320 is formed can be reduced. It can be made smaller than the magnetic flux leaking from the surface side where the electrode 320 is not formed. Since the surface side on which the land electrode 320 is not formed becomes the surface side facing the charging stand 2, the spiral inductor 31 has the leakage magnetic flux on the surface side facing the charging stand 2 facing the surface. It is larger than the leakage magnetic flux on the surface side opposite to the surface side. Therefore, the power transmission system 1 according to the embodiment of the present invention suppresses leakage of magnetic flux from the surface side of the spiral inductor 31 opposite to the surface side facing the charging table 2, and The magnetic flux used for electromagnetic coupling with the coil 21 can be increased, and the ability to transmit electric power can be maintained.

図１に戻って、スパイラルインダクタ３１は、充電台２に対向している面側とは反対の面側に、回路基板３４を実装するようにしてある。回路基板３４は、スパイラルインダクタ３１で伝送する電力を制御する複数の電子部品を実装しており、少なくとも整流回路、レギュレータ回路、充電制御回路を構成する電子部品が実装されている。図５は、本発明の実施の形態に係る電力伝送システム１の回路構成の一部を示す回路図である。図５に示す電力伝送システム１では、充電台２のコイル２１と携帯電話機３のスパイラルインダクタ３１とを電磁結合させて電力を伝送する場合に、スパイラルインダクタ３１に接続される回路構成が図示されている。具体的には、整流回路を構成するダイオードＤ及びコンデンサＣが回路基板３４に実装され、該回路基板３４を、スパイラルインダクタ３１の、充電台２に対向している面側とは反対の面側に実装してある。そのため、スパイラルインダクタ３１と回路基板３４とで構成されるコイルモジュールを小型化して、携帯電話機３を小型化することができる。   Returning to FIG. 1, the spiral inductor 31 is configured such that the circuit board 34 is mounted on the surface opposite to the surface facing the charging stand 2. The circuit board 34 is mounted with a plurality of electronic components that control the power transmitted by the spiral inductor 31, and at least electronic components that constitute a rectifier circuit, a regulator circuit, and a charge control circuit are mounted. FIG. 5 is a circuit diagram showing a part of the circuit configuration of the power transmission system 1 according to the embodiment of the present invention. In the power transmission system 1 shown in FIG. 5, a circuit configuration connected to the spiral inductor 31 is illustrated when the coil 21 of the charging stand 2 and the spiral inductor 31 of the mobile phone 3 are electromagnetically coupled to transmit power. Yes. Specifically, the diode D and the capacitor C constituting the rectifier circuit are mounted on the circuit board 34, and the circuit board 34 is disposed on the surface side opposite to the surface side of the spiral inductor 31 facing the charging base 2. Is implemented. Therefore, it is possible to reduce the size of the mobile phone 3 by reducing the size of the coil module including the spiral inductor 31 and the circuit board 34.

以上のように、本発明の実施の形態に係る電力伝送システム１では、充電台２が、平板状のコイル（第一のコイル）２１と、コイル２１の内径部分に配置された磁石２２とを備え、携帯電話機３が、コイル２１の内径と略同じ又は該内径より小さい外径のスパイラルインダクタ（第二のコイル）３１を備える。スパイラルインダクタ３１がコイル２１より小さいため、充電台２のコイル２１と携帯電話機３のスパイラルインダクタ３１との結合係数は低下するが、コイル２１の内径部分に配置された磁石２２により、エネルギーの保持と損失との関係を示す指標であるＱ値を高くすることができるため、電力を伝送する能力を維持することができる。具体的に、コイル２１の外径を４ｃｍ、スパイラルインダクタ３１のコイル導体３１ｂの外径を１ｃｍとした場合、充電台２から２．５Ｗの電力を供給すると、携帯電話機３で１Ｗの電力の供給を受けることができ、本発明の実施の形態に係る電力伝送システム１の電力を伝送する能力（伝送効率）は４０％となる。   As described above, in the power transmission system 1 according to the embodiment of the present invention, the charging stand 2 includes the flat coil (first coil) 21 and the magnet 22 arranged on the inner diameter portion of the coil 21. The mobile phone 3 includes a spiral inductor (second coil) 31 having an outer diameter that is substantially the same as or smaller than the inner diameter of the coil 21. Since the spiral inductor 31 is smaller than the coil 21, the coupling coefficient between the coil 21 of the charging stand 2 and the spiral inductor 31 of the mobile phone 3 is reduced. However, the magnet 22 disposed on the inner diameter portion of the coil 21 holds energy. Since the Q value that is an index indicating the relationship with the loss can be increased, the ability to transmit power can be maintained. Specifically, when the outer diameter of the coil 21 is 4 cm and the outer diameter of the coil conductor 31b of the spiral inductor 31 is 1 cm, when 2.5 W of power is supplied from the charging base 2, the mobile phone 3 supplies 1 W of power. The power transmission system 1 according to the embodiment of the present invention can transmit power (transmission efficiency) of 40%.

また、本発明の実施の形態に係る電力伝送システム１では、充電台２のコイル２１の内径部分に配置された磁石２２と、携帯電話機３のスパイラルインダクタ３１の軟磁性体層３１ａとの間の引き合う力を利用して、充電台２のコイル２１と携帯電話機３のスパイラルインダクタ３１との位置合わせを容易に行うことができる。さらに、本発明の実施の形態に係る電力伝送システム１では、携帯電話機３のコイルをスパイラルインダクタ３１とすることで、携帯電話機３側のコイルを小型化することができる。   Moreover, in the power transmission system 1 according to the embodiment of the present invention, the gap between the magnet 22 disposed on the inner diameter portion of the coil 21 of the charging stand 2 and the soft magnetic layer 31 a of the spiral inductor 31 of the mobile phone 3 is between. Using the attractive force, the coil 21 of the charging stand 2 and the spiral inductor 31 of the mobile phone 3 can be easily aligned. Furthermore, in the power transmission system 1 according to the embodiment of the present invention, the coil on the mobile phone 3 side can be downsized by using the coil of the mobile phone 3 as the spiral inductor 31.

また、本発明の実施の形態に係る充電台２は、軟磁性体層３１ａとコイル導体３１ｂとで構成されたスパイラルインダクタ３１を備える携帯電話機３に対して、電力を供給する充電台である。そして、充電台２は、平板状のコイル２１と、該コイル２１の内径部分に配置された磁石２２とを備える。コイル２１の内径は、携帯電話機３のコイル導体３１ｂの外径と略同じ又は該外径より大きいので、充電台２のコイル２１と携帯電話機３のコイル導体３１ｂとの結合係数は低下するが、コイル２１の内径部分に配置された磁石２２により、Ｑ値を高くすることができるため、電力を伝送する能力を維持することができる。   The charging stand 2 according to the embodiment of the present invention is a charging stand that supplies power to the mobile phone 3 that includes the spiral inductor 31 that includes the soft magnetic layer 31a and the coil conductor 31b. The charging stand 2 includes a flat coil 21 and a magnet 22 disposed on the inner diameter portion of the coil 21. Since the inner diameter of the coil 21 is substantially the same as or larger than the outer diameter of the coil conductor 31b of the mobile phone 3, the coupling coefficient between the coil 21 of the charging base 2 and the coil conductor 31b of the mobile phone 3 decreases. Since the Q value can be increased by the magnet 22 disposed in the inner diameter portion of the coil 21, the ability to transmit electric power can be maintained.

さらに、本発明の実施の形態に係る携帯電話機３は、平板状のコイル２１と、該コイル２１の内径部分に配置された磁石２２とを備える充電台２から電力の供給を受ける携帯電話機３である。そして、携帯電話機３は、軟磁性体層３１ａとコイル導体３１ｂとで構成されたスパイラルインダクタ３１と、スパイラルインダクタ３１と離隔して配置され、二次電池３２を収納している電池収納部３３とを備えるので、充電台２から電力の供給を受けてスパイラルインダクタ３１が発熱しても電池収納部３３に熱が伝わりにくく、二次電池３２の劣化を抑えることができる。   Furthermore, the mobile phone 3 according to the embodiment of the present invention is a mobile phone 3 that is supplied with electric power from a charging stand 2 that includes a flat coil 21 and a magnet 22 disposed on an inner diameter portion of the coil 21. is there. The mobile phone 3 includes a spiral inductor 31 composed of a soft magnetic layer 31a and a coil conductor 31b, and a battery storage unit 33 that is spaced apart from the spiral inductor 31 and stores a secondary battery 32. Therefore, even when the spiral inductor 31 generates heat upon receiving power supply from the charging stand 2, it is difficult for heat to be transmitted to the battery housing portion 33, and deterioration of the secondary battery 32 can be suppressed.

１ 電力伝送システム
２ 充電台
３ 携帯電話機
４ ＡＣアダプタ
２１ コイル
２２ 磁石
２３、３４ 回路基板
２３ａ 電子部品
２３ｂ、２３ｃ コネクタ
２４ 樹脂構造体
３１ スパイラルインダクタ
３１ａ 軟磁性体層
３１ｂ コイル導体
３１ｃ 非磁性体層
３１ｄ 引き出し配線
３２ 二次電池
３３ 電池収納部
３２０ ランド電極 DESCRIPTION OF SYMBOLS 1 Electric power transmission system 2 Charging stand 3 Mobile phone 4 AC adapter 21 Coil 22 Magnet 23, 34 Circuit board 23a Electronic component 23b, 23c Connector 24 Resin structure 31 Spiral inductor 31a Soft magnetic layer 31b Coil conductor 31c Nonmagnetic layer 31d Lead-out wiring 32 Secondary battery 33 Battery compartment 320 Land electrode

Claims (5)

電力を供給する給電装置と、電力の供給を受ける受電装置とを備える電力伝送システムにおいて、
前記給電装置は、
平板状の第一のコイルと、
該第一のコイルの内径部分に配置された磁石と
を備え、
前記受電装置は、
前記第一のコイルの内径と略同じ又は該内径より小さい外径の第二のコイルを備え、
該第二のコイルは、軟磁性体層とコイル導体とで構成されたスパイラルインダクタであることを特徴とする電力伝送システム。 In a power transmission system including a power supply device that supplies power and a power receiving device that receives power supply,
The power supply device
A flat first coil;
A magnet disposed on the inner diameter portion of the first coil,
The power receiving device is:
A second coil having an outer diameter substantially the same as or smaller than the inner diameter of the first coil;
The power transmission system, wherein the second coil is a spiral inductor composed of a soft magnetic layer and a coil conductor. 前記スパイラルインダクタは、前記給電装置に対向している面側の漏れ磁束が、対向している該面側とは反対の面側の漏れ磁束より大きくなるようにしてあることを特徴とする請求項１記載の電力伝送システム。   The spiral inductor is configured such that a leakage magnetic flux on a surface facing the power feeding device is larger than a leakage magnetic flux on a surface opposite to the surface facing the spiral inductor. The power transmission system according to 1. 前記スパイラルインダクタは、前記給電装置に対向している面側とは反対の面側に、回路基板を実装するようにしてあることを特徴とする請求項１又は２に記載の電力伝送システム。   3. The power transmission system according to claim 1, wherein the spiral inductor is configured such that a circuit board is mounted on a surface opposite to a surface facing the power feeding device. 軟磁性体層とコイル導体とで構成されたスパイラルインダクタを備える受電装置に対して、電力を供給する給電装置であって、
平板状のコイルと、
該コイルの内径部分に配置された磁石と
を備え、
前記コイルの内径は、前記受電装置の前記コイル導体の外径と略同じ又は該外径より大きいことを特徴とする給電装置。 A power supply device that supplies power to a power receiving device including a spiral inductor composed of a soft magnetic layer and a coil conductor,
A flat coil;
A magnet disposed on the inner diameter portion of the coil,
An inner diameter of the coil is substantially equal to or larger than an outer diameter of the coil conductor of the power receiving apparatus. 平板状のコイルと、
該コイルの内径部分に配置された磁石と
を備える給電装置から電力の供給を受ける携帯機器であって、
軟磁性体層とコイル導体とで構成されたスパイラルインダクタと、
該スパイラルインダクタと離隔して配置され、二次電池を収納している電池収納部と
を備え、
前記コイル導体の外径は、前記給電装置の前記コイルの内径と略同じ又は該内径より小さいことを特徴とする携帯機器。 A flat coil;
A portable device that is supplied with electric power from a power supply device including a magnet disposed on an inner diameter portion of the coil,
A spiral inductor composed of a soft magnetic layer and a coil conductor;
A battery storage section that is spaced apart from the spiral inductor and stores a secondary battery;
The portable device characterized in that an outer diameter of the coil conductor is substantially the same as or smaller than an inner diameter of the coil of the power feeding device.
JP2010145731A 2010-06-28 2010-06-28 Power transmission system, and power supply device and portable apparatus therefor Pending JP2012010533A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014002374A1 (en) * 2012-06-28 2014-01-03 パナソニック株式会社 Mobile terminal
WO2014050352A1 (en) * 2012-09-27 2014-04-03 Tanaka Tetsuo Stand for portable electronic device
EP2642632A3 (en) * 2012-03-23 2014-07-30 LG Innotek Co., Ltd. Wireless power receiver and method of manufacturing the same
US9553476B2 (en) 2012-03-23 2017-01-24 Lg Innotek Co., Ltd. Antenna assembly and method for manufacturing same
US9607757B2 (en) 2011-11-02 2017-03-28 Panasonic Corporation Non-contact wireless communication coil, transmission coil, and portable wireless terminal
US9735606B2 (en) 2012-06-28 2017-08-15 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including charging coil and wireless communication coil, wireless charging module including charging coil and wireless communication coil
US9935481B2 (en) 2012-02-17 2018-04-03 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including wireless charging module and battery pack
US9954396B2 (en) 2011-06-14 2018-04-24 Panasonic Corporation Electronic device including non-contact charging module
JP2018088471A (en) * 2016-11-28 2018-06-07 京セラ株式会社 Printed-circuit board
US10204734B2 (en) 2011-11-02 2019-02-12 Panasonic Corporation Electronic device including non-contact charging module and near field communication antenna
US10218222B2 (en) 2011-01-26 2019-02-26 Panasonic Intellectual Property Management Co., Ltd. Non-contact charging module having a wireless charging coil and a magnetic sheet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH113829A (en) * 1997-06-11 1999-01-06 Tokin Corp Laminated coil part and battery charger incorporating the same
WO2009025279A1 (en) * 2007-08-21 2009-02-26 Kabushiki Kaisha Toshiba Noncontact power receiving apparatus, electronic device using noncontact power receiving apparatus and charging system
JP2009159660A (en) * 2007-12-25 2009-07-16 Casio Comput Co Ltd Noncontact power transfer device
JP2009188131A (en) * 2008-02-05 2009-08-20 Nec Tokin Corp Non-contact power transmission device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH113829A (en) * 1997-06-11 1999-01-06 Tokin Corp Laminated coil part and battery charger incorporating the same
WO2009025279A1 (en) * 2007-08-21 2009-02-26 Kabushiki Kaisha Toshiba Noncontact power receiving apparatus, electronic device using noncontact power receiving apparatus and charging system
JP2009159660A (en) * 2007-12-25 2009-07-16 Casio Comput Co Ltd Noncontact power transfer device
JP2009188131A (en) * 2008-02-05 2009-08-20 Nec Tokin Corp Non-contact power transmission device

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10218222B2 (en) 2011-01-26 2019-02-26 Panasonic Intellectual Property Management Co., Ltd. Non-contact charging module having a wireless charging coil and a magnetic sheet
US10468913B2 (en) 2011-06-14 2019-11-05 Sovereign Peak Ventures, Llc Electronic device including non-contact charging module
US10044225B2 (en) 2011-06-14 2018-08-07 Panasonic Corporation Electronic device including non-contact charging module
US10003219B1 (en) 2011-06-14 2018-06-19 Panasonic Corporation Electronic device including non-contact charging module
US9954396B2 (en) 2011-06-14 2018-04-24 Panasonic Corporation Electronic device including non-contact charging module
US9634515B2 (en) 2011-11-02 2017-04-25 Panasonic Corporation Non-contact wireless communication coil, transmission coil, and portable wireless terminal
US10204734B2 (en) 2011-11-02 2019-02-12 Panasonic Corporation Electronic device including non-contact charging module and near field communication antenna
US9607757B2 (en) 2011-11-02 2017-03-28 Panasonic Corporation Non-contact wireless communication coil, transmission coil, and portable wireless terminal
US9941048B2 (en) 2011-11-02 2018-04-10 Panasonic Corporation Non-contact wireless communication coil, transmission coil, and portable wireless terminal
US9991735B1 (en) 2012-02-17 2018-06-05 Panasonic Intellectual Property Management Co., Ltd. Electronic device including non-contact charging module and battery
US11070075B2 (en) 2012-02-17 2021-07-20 Sovereign Peak Ventures, Llc Electronic device including non-contact charging module and battery
US10574082B2 (en) 2012-02-17 2020-02-25 Sovereign Peak Ventures, Llc Electronic device including non-contact charging module and battery
US10020673B2 (en) 2012-02-17 2018-07-10 Panasonic Intellectual Property Management Co., Ltd. Electronic device including non-contact charging module and battery
US9935481B2 (en) 2012-02-17 2018-04-03 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including wireless charging module and battery pack
US9997952B2 (en) 2012-02-17 2018-06-12 Panasonic Intellectual Property Management Co., Ltd. Wireless charging module and mobile terminal including the same
US9553476B2 (en) 2012-03-23 2017-01-24 Lg Innotek Co., Ltd. Antenna assembly and method for manufacturing same
US10277071B2 (en) 2012-03-23 2019-04-30 Lg Innotek Co., Ltd. Wireless power receiver and method of manufacturing the same
US10256540B2 (en) 2012-03-23 2019-04-09 Lg Innotek Co., Ltd. Antenna assembly and method for manufacturing same
EP2642632A3 (en) * 2012-03-23 2014-07-30 LG Innotek Co., Ltd. Wireless power receiver and method of manufacturing the same
TWI613686B (en) * 2012-03-23 2018-02-01 Ｌｇ伊諾特股份有限公司 Method of manufacturing a wireless power receiver
US10804740B2 (en) 2012-03-23 2020-10-13 Lg Innotek Co., Ltd. Wireless power receiver and method of manufacturing the same
US9806565B2 (en) 2012-03-23 2017-10-31 Lg Innotek Co., Ltd. Wireless power receiver and method of manufacturing the same
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US10270291B2 (en) 2012-03-23 2019-04-23 Lg Innotek Co., Ltd. Wireless power receiver and method of manufacturing the same
US9735606B2 (en) 2012-06-28 2017-08-15 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including charging coil and wireless communication coil, wireless charging module including charging coil and wireless communication coil
US10230272B2 (en) 2012-06-28 2019-03-12 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including wireless charging coil and magnetic sheet having inwardly receding portion
US10291069B2 (en) 2012-06-28 2019-05-14 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal and chargeable communication module
JP2018029475A (en) * 2012-06-28 2018-02-22 パナソニックＩｐマネジメント株式会社 Portable terminal
WO2014002374A1 (en) * 2012-06-28 2014-01-03 パナソニック株式会社 Mobile terminal
US10574090B2 (en) 2012-06-28 2020-02-25 Sovereign Peak Ventures, Llc Mobile terminal including wireless charging coil and magnetic sheet having inwardly receding portion
US9667086B2 (en) 2012-06-28 2017-05-30 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal
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US11616395B2 (en) 2012-06-28 2023-03-28 Sovereign Peak Ventures, Llc Mobile terminal and chargeable communication module
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