JP2000200725A - Non-contact power transmission device - Google Patents
Non-contact power transmission deviceInfo
- Publication number
- JP2000200725A JP2000200725A JP10377219A JP37721998A JP2000200725A JP 2000200725 A JP2000200725 A JP 2000200725A JP 10377219 A JP10377219 A JP 10377219A JP 37721998 A JP37721998 A JP 37721998A JP 2000200725 A JP2000200725 A JP 2000200725A
- Authority
- JP
- Japan
- Prior art keywords
- coils
- soft magnetic
- transmission device
- power transmission
- coil
- 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.)
- Pending
Links
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コイル間に発生す
る電磁誘導作用により非接触で電力、信号あるいは両方
同時に伝送する非接触電力伝送装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact power transmission apparatus for transmitting power, a signal, or both simultaneously in a non-contact manner by an electromagnetic induction effect generated between coils.
【０００２】[0002]
【従来の技術】従来、この種の非接触電力伝送装置は、
図４及び図５に示すように、平板の軟磁性体２上に、平
板ミアンダ状あるいは平板渦巻き状のコイル１を載置
し、１次、２次となるコイルを軟磁性体が挟み込む形状
であった。そのため、磁気抵抗が大きく、図６に示すよ
うに、漏れ磁束の発生が多くなっていた。また、このよ
うな構造であるため、薄型化、小型化の妨げとなってい
た。2. Description of the Related Art Conventionally, this kind of non-contact power transmission device has
As shown in FIGS. 4 and 5, a flat meandering or flat spiral coil 1 is placed on a flat soft magnetic body 2, and the primary and secondary coils are sandwiched by the soft magnetic body. there were. Therefore, the magnetic resistance was large, and the generation of leakage magnetic flux increased as shown in FIG. In addition, such a structure hinders reduction in thickness and size.
【０００３】[0003]
【発明が解決しようとする課題】従って、本発明の課題
は、伝送効率が向上し、その上、小型化した非接触電力
伝送装置を提供することにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a non-contact power transmission device which has improved transmission efficiency and is further reduced in size.
【０００４】[0004]
【課題を解決するための手段】本発明は、一方が送信
側、他方が受信側となる、空隙を介して対向するコイル
を含み、軟磁性体を前記コイルの対向する側と反対側に
設け、前記対向するコイル間に生じる電磁誘導作用を利
用して非接触に電力を伝送する非接触電力伝送装置にお
いて、前記軟磁性体は、前記コイルを埋め込む凹部を有
することを特徴とする非接触電力伝送装置である。According to the present invention, there is provided a coil, one of which is on the transmitting side and the other is on the receiving side, opposed to each other via an air gap, and a soft magnetic material is provided on the side opposite to the opposite side of the coil. In a non-contact power transmission device for transmitting power in a non-contact manner using an electromagnetic induction effect generated between the opposed coils, the soft magnetic body has a concave portion in which the coil is embedded. It is a transmission device.
【０００５】また、本発明は、一方が送信側、他方が受
信側となる、空隙を介して対向するコイルを含み、軟磁
性体を前記コイルの対向する側と反対側に設け、前記対
向するコイル間に生じる電磁誘導作用を利用して非接触
に電力を伝送する非接触電力伝送装置において、前記軟
磁性体は、両面に前記コイルを埋め込む凹部を有し、両
面伝送可能な構造であることを特徴とする非接触電力伝
送装置である。[0005] The present invention also includes a coil, one of which is a transmitting side and the other is a receiving side, opposed to each other via an air gap, and a soft magnetic material is provided on the opposite side of the coil to the opposite side. In a non-contact power transmission device for transmitting power in a non-contact manner using an electromagnetic induction effect generated between coils, the soft magnetic body has a concave portion for embedding the coil on both surfaces, and has a structure capable of transmitting both surfaces. A non-contact power transmission device characterized by the following.
【０００６】本発明において、軟磁性体の形状を、単な
る平板ではなく、コイルの形状にそった凹凸型にして、
その中にコイルを埋め込むことにより、磁気抵抗及び漏
れ磁束が減少する。そのため、伝送効率を向上させるこ
とができる。[0006] In the present invention, the shape of the soft magnetic material is not a simple flat plate, but an irregular shape along the shape of the coil.
By embedding the coil therein, the reluctance and leakage flux are reduced. Therefore, transmission efficiency can be improved.
【０００７】また、漏れ磁束を少なくすることで、伝送
効率が向上し、損失が減少し、入力電力が小さくてすむ
ため、更なる小型化及び薄型化が可能となる。Further, by reducing the leakage magnetic flux, the transmission efficiency is improved, the loss is reduced, and the input power can be reduced, so that the size and thickness can be further reduced.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００９】図１は、本発明の非接触電力伝送装置の断
面図である。図２は、本発明の非接触電力伝送装置にお
ける磁束の流れを示す側面図である。FIG. 1 is a sectional view of a wireless power transmission device according to the present invention. FIG. 2 is a side view showing the flow of magnetic flux in the wireless power transmission device of the present invention.
【００１０】本発明の非接触電力伝送装置は、図１に示
すように、軟磁性体３にコイル１を挿入できる形状の凹
部を形成し、この凹部にコイル１を挿入したものであ
る。As shown in FIG. 1, the contactless power transmission device of the present invention has a recess formed in a soft magnetic body 3 into which the coil 1 can be inserted, and the coil 1 is inserted into the recess.
【００１１】なお、コイルの高さは、軟磁性体より低い
場合だけでなく、高い場合でもよく、その用途に応じて
使い分けられる。The height of the coil may be not only lower than the soft magnetic material but also higher than the soft magnetic material.
【００１２】図２に示すように、送信部と受信部の間隙
が同じ場合、本発明のほうが、従来（図６）より磁束が
軟磁性体を流れる距離が長く、空気中を通る距離が短く
磁気抵抗が小さくなることがわかる。As shown in FIG. 2, when the gap between the transmitting unit and the receiving unit is the same, in the present invention, the distance over which the magnetic flux flows through the soft magnetic material and the distance through the air is shorter than in the conventional case (FIG. 6). It can be seen that the magnetic resistance decreases.
【００１３】なお、軟磁性体の形成方法には、金型によ
り一体にプレス成形する方法、平板とコイル状の穴が開
けられた平板を組み合わせる方法、塗布による方法等が
考えられるが、いずれの方法でもよい。As a method of forming the soft magnetic material, a method of integrally press-molding with a mold, a method of combining a flat plate with a flat plate having a coil-shaped hole, a method of coating, and the like are conceivable. It may be a method.
【００１４】図３に、本発明の他の例の非接触電力伝送
装置の断面図を示す。この場合、１個の磁性体１３の両
面に２組のコイル１を装着して両面伝送可能にしてい
る。FIG. 3 is a sectional view of a wireless power transmission device according to another embodiment of the present invention. In this case, two sets of coils 1 are mounted on both sides of one magnetic body 13 to enable two-sided transmission.
【００１５】[0015]
【発明の効果】以上説明したように、本発明によれば、
伝送効率が向上し、その上、小型化した非接触電力伝送
装置を提供することができた。As described above, according to the present invention,
The transmission efficiency was improved, and furthermore, a miniaturized wireless power transmission device could be provided.
【図１】本発明の非接触電力伝送装置の断面図。FIG. 1 is a cross-sectional view of a wireless power transmission device according to the present invention.
【図２】本発明の非接触電力伝送装置における磁束の流
れを示す側面図。FIG. 2 is a side view showing the flow of magnetic flux in the wireless power transmission device of the present invention.
【図３】本発明の他の例の非接触電力伝送装置の断面
図。FIG. 3 is a sectional view of a wireless power transmission device according to another example of the present invention.
【図４】従来の非接触電力伝送装置の平面図。FIG. 4 is a plan view of a conventional wireless power transmission device.
【図５】従来の非接触電力伝送装置の断面図。FIG. 5 is a cross-sectional view of a conventional wireless power transmission device.
【図６】従来の非接触電力伝送装置における磁束の流れ
を示す側面図。FIG. 6 is a side view showing the flow of magnetic flux in the conventional wireless power transmission device.
１ コイル ２ （従来の）軟磁性体 ３、１３ （本発明の）軟磁性体 ４ （磁束の流れを示す）矢印 REFERENCE SIGNS LIST 1 coil 2 (conventional) soft magnetic material 3, 13 (of the present invention) soft magnetic material 4 arrow (indicating flow of magnetic flux)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 土屋 治彦 宮城県仙台市太白区郡山６丁目７番１号 株式会社トーキン内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Haruhiko Tsuchiya 6-7-1, Koriyama, Taishiro-ku, Sendai-shi, Miyagi-ken Tokin Co., Ltd.
Claims (2)
隙を介して対向するコイルを含み、軟磁性体を前記コイ
ルの対向する側と反対側に設け、前記対向するコイル間
に生じる電磁誘導作用を利用して非接触に電力を伝送す
る非接触電力伝送装置において、前記軟磁性体は、前記
コイルを埋め込む凹部を有することを特徴とする非接触
電力伝送装置。1. A soft magnetic material is provided on a side opposite to an opposite side of the coil and includes a coil facing one side via a gap, one side being a transmitting side and the other side being a receiving side. A non-contact power transmission device for transmitting power in a non-contact manner using electromagnetic induction, wherein the soft magnetic body has a concave portion in which the coil is embedded.
隙を介して対向するコイルを含み、軟磁性体を前記コイ
ルの対向する側と反対側に設け、前記対向するコイル間
に生じる電磁誘導作用を利用して非接触に電力を伝送す
る非接触電力伝送装置において、前記軟磁性体は、両面
に前記コイルを埋め込む凹部を有し、両面伝送可能な構
造であることを特徴とする非接触電力伝送装置。2. A coil having a transmitting side and a receiving side facing each other and including a coil facing through a gap, wherein a soft magnetic material is provided on a side opposite to the opposite side of the coil, and is generated between the facing coils. In a non-contact power transmission device that transmits power in a non-contact manner using an electromagnetic induction action, the soft magnetic body has a concave portion in which the coil is embedded on both surfaces, and has a structure capable of transmitting both surfaces. Non-contact power transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10377219A JP2000200725A (en) | 1998-12-29 | 1998-12-29 | Non-contact power transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10377219A JP2000200725A (en) | 1998-12-29 | 1998-12-29 | Non-contact power transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000200725A true JP2000200725A (en) | 2000-07-18 |
Family
ID=18508459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10377219A Pending JP2000200725A (en) | 1998-12-29 | 1998-12-29 | Non-contact power transmission device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000200725A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100819604B1 (en) | 2005-07-27 | 2008-04-03 | 엘에스전선 주식회사 | Wireless Charger Decreased in Variation of Charging Efficiency |
| EP1947660A2 (en) * | 2007-01-09 | 2008-07-23 | Sony Ericsson Mobile Communications Japan, Inc. | Noncontact power-transmission coil, portable terminal and terminal charging device, planar coil magnetic layer formation device, and magnetic layer formation method |
| JP2008289241A (en) * | 2007-05-16 | 2008-11-27 | Seiko Epson Corp | Electronic apparatus, charger, and charging system |
| JP2009005474A (en) * | 2007-06-20 | 2009-01-08 | Panasonic Electric Works Co Ltd | Non-contact power transmission apparatus |
| KR100976158B1 (en) | 2008-12-12 | 2010-08-16 | 주식회사 한림포스텍 | Non-contact charging system of wireless power transmision with pt-pcb core having planar spiral core structure |
| JP2011045189A (en) * | 2009-08-21 | 2011-03-03 | Fujitsu Ltd | Method and device for shielding electromagnetic wave in radio power transmission system, and radio power transmission device |
| CN102782975A (en) * | 2009-09-09 | 2012-11-14 | 皇家飞利浦电子股份有限公司 | An electronic device as well as a base part and an electronic element suitable for use in such an electronic device |
| EP2546843A1 (en) * | 2010-03-09 | 2013-01-16 | Nitto Denko Corporation | Magnetic element for wireless power transmission and power supply device |
| US8749334B2 (en) | 2007-05-10 | 2014-06-10 | Auckland Uniservices Ltd. | Multi power sourced electric vehicle |
| US9071061B2 (en) | 2009-02-05 | 2015-06-30 | Auckland Uniservices Ltd. | Inductive power transfer apparatus |
| EP2870675A4 (en) * | 2012-07-09 | 2016-04-27 | Auckland Uniservices Ltd | Flux coupling device and magnetic structures therefor |
| US9466419B2 (en) | 2007-05-10 | 2016-10-11 | Auckland Uniservices Limited | Apparatus and system for charging a battery |
| US10673274B2 (en) | 2011-10-17 | 2020-06-02 | Auckland Uniservices Limited | Inductive power transfer apparatus |
| US10804745B2 (en) | 2008-12-12 | 2020-10-13 | Ge Hybrid Technologies, Llc | Non-contact power reception apparatus for non-contact charging and electronic settlement performed in a single portable terminal |
-
1998
- 1998-12-29 JP JP10377219A patent/JP2000200725A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100819604B1 (en) | 2005-07-27 | 2008-04-03 | 엘에스전선 주식회사 | Wireless Charger Decreased in Variation of Charging Efficiency |
| EP1947660A2 (en) * | 2007-01-09 | 2008-07-23 | Sony Ericsson Mobile Communications Japan, Inc. | Noncontact power-transmission coil, portable terminal and terminal charging device, planar coil magnetic layer formation device, and magnetic layer formation method |
| JP2008172873A (en) * | 2007-01-09 | 2008-07-24 | Sony Ericsson Mobilecommunications Japan Inc | Contactless power transmission coil, portable terminal, terminal charger, magnetic layer forming apparatus for planar coil and magnetic layer forming method thereof |
| US8072304B2 (en) | 2007-01-09 | 2011-12-06 | Sony Ericsson Mobile Communications Japan, Inc. | Noncontact power-transmission coil, portable terminal and terminal charging device, planar coil magnetic layer formation device, and magnetic layer formation method |
| EP1947660A3 (en) * | 2007-01-09 | 2014-10-15 | Sony Mobile Communications Japan, Inc. | Noncontact power-transmission coil, portable terminal and terminal charging device, planar coil magnetic layer formation device, and magnetic layer formation method |
| US8749334B2 (en) | 2007-05-10 | 2014-06-10 | Auckland Uniservices Ltd. | Multi power sourced electric vehicle |
| US9466419B2 (en) | 2007-05-10 | 2016-10-11 | Auckland Uniservices Limited | Apparatus and system for charging a battery |
| JP2008289241A (en) * | 2007-05-16 | 2008-11-27 | Seiko Epson Corp | Electronic apparatus, charger, and charging system |
| JP2009005474A (en) * | 2007-06-20 | 2009-01-08 | Panasonic Electric Works Co Ltd | Non-contact power transmission apparatus |
| US9767955B2 (en) | 2008-05-09 | 2017-09-19 | Auckland Uniservices Limited | Multi power sourced electric vehicle |
| US11601014B2 (en) | 2008-12-12 | 2023-03-07 | Ge Hybrid Technologies, Llc | Non-contact power reception apparatus for non-contact charging and electronic settlement performed in a single portable terminal |
| US10992184B2 (en) | 2008-12-12 | 2021-04-27 | Ge Hybrid Technologies, Llc | Non-contact power reception apparatus for non-contact charging and electronic settlement performed in a single portable terminal |
| US10804745B2 (en) | 2008-12-12 | 2020-10-13 | Ge Hybrid Technologies, Llc | Non-contact power reception apparatus for non-contact charging and electronic settlement performed in a single portable terminal |
| US11095163B2 (en) | 2008-12-12 | 2021-08-17 | Ge Hybrid Technologies, Llc | Non-contact power reception apparatus for non-contact charging and electronic settlement performed in a single portable terminal |
| KR100976158B1 (en) | 2008-12-12 | 2010-08-16 | 주식회사 한림포스텍 | Non-contact charging system of wireless power transmision with pt-pcb core having planar spiral core structure |
| US9071061B2 (en) | 2009-02-05 | 2015-06-30 | Auckland Uniservices Ltd. | Inductive power transfer apparatus |
| JP2011045189A (en) * | 2009-08-21 | 2011-03-03 | Fujitsu Ltd | Method and device for shielding electromagnetic wave in radio power transmission system, and radio power transmission device |
| JP2013504869A (en) * | 2009-09-09 | 2013-02-07 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Electronic device and base part and electronic element suitable for use of such electronic device |
| CN102782975A (en) * | 2009-09-09 | 2012-11-14 | 皇家飞利浦电子股份有限公司 | An electronic device as well as a base part and an electronic element suitable for use in such an electronic device |
| US9390849B2 (en) | 2010-03-09 | 2016-07-12 | Nitto Denko Corporation | Magnetic element for wireless power transmission and power supply device |
| EP2546843A4 (en) * | 2010-03-09 | 2014-06-11 | Nitto Denko Corp | Magnetic element for wireless power transmission and power supply device |
| EP2546843A1 (en) * | 2010-03-09 | 2013-01-16 | Nitto Denko Corporation | Magnetic element for wireless power transmission and power supply device |
| US10673274B2 (en) | 2011-10-17 | 2020-06-02 | Auckland Uniservices Limited | Inductive power transfer apparatus |
| EP2870675A4 (en) * | 2012-07-09 | 2016-04-27 | Auckland Uniservices Ltd | Flux coupling device and magnetic structures therefor |
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