【０００１】[0001]
【発明の属する技術分野】本発明は電磁誘導を利用して
各々個別の筐体に実装された１次側コイルから、２次側
コイルに電力を伝達する非接触型の電源装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact type power supply device that uses electromagnetic induction to transmit electric power from a primary coil mounted in each individual housing to a secondary coil. .
【０００２】[0002]
【従来の技術】従来技術を図３〜図６の非接触型の電源
装置により説明する。同図において１は１次側コイル、
１ａは１次側コイル１の巻線、１ｂは１次側コイル１の
コア、２は１次側コイル１を実装した筐体、２ａは筐体
２の外周に設けられたガイド、３は２次側コイル、３ａ
は２次側コイル３の巻線、３ｂは２次側コイル３のコ
ア、４は２次側コイル３を実装した筐体、５は電源コー
ド、６は１次側回路、７は２次側回路である。2. Description of the Related Art A conventional technique will be described with reference to a non-contact type power supply device shown in FIGS. In the figure, 1 is a primary coil,
1a is a winding of the primary side coil 1, 1b is a core of the primary side coil 1, 2 is a case in which the primary side coil 1 is mounted, 2a is a guide provided on the outer periphery of the case 2, and 3 is 2 Secondary coil, 3a
Is a winding of the secondary coil 3, 3b is a core of the secondary coil 3, 4 is a housing in which the secondary coil 3 is mounted, 5 is a power cord, 6 is a primary circuit, and 7 is a secondary side Circuit.
【０００３】非接触型の電源装置において、１次側コイ
ル１と２次側コイル３との磁界を介した結合は電源装置
の電力伝達効率や出力容量を左右する重要な特性項目で
ある。In the non-contact type power supply device, the coupling between the primary side coil 1 and the secondary side coil 3 via a magnetic field is an important characteristic item that influences the power transmission efficiency and output capacity of the power supply device.
【０００４】この磁界を介した結合を向上させるために
従来は、図４のように筐体２、４の肉厚Ｄ、Ｄaを薄く
することにより、１次側コイル１と２次側コイル３の距
離を短くしたり、図５のように１次側コイル１と２次側
コイル３の対向面積Ａ、Ａaを広くしたり、または図６
のように１次側コイル１と２次側コイル３を同一平面上
に配置したりしていた。Conventionally, in order to improve the coupling via the magnetic field, the thicknesses D and Da of the housings 2 and 4 are reduced as shown in FIG. 4 to reduce the primary side coil 1 and the secondary side coil. 3 is shortened, or the facing areas A and Aa of the primary side coil 1 and the secondary side coil 3 are widened as shown in FIG.
As described above, the primary coil 1 and the secondary coil 3 are arranged on the same plane.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の構成では、非接触型の電源装置において１次
側コイル１と２次側コイル３の距離を短くすることは、
図４のように１次側コイル１と２次側コイル３の間にあ
る１次側コイル１が実装された筐体２の厚みＤおよび２
次側コイルが実装された筐体の厚みＤaを薄くすること
につながり、１次側コイル１が実装された筐体２および
２次側コイル３が実装された筐体４の強度が低下する。However, in such a conventional configuration, shortening the distance between the primary side coil 1 and the secondary side coil 3 in the non-contact type power supply device is as follows.
As shown in FIG. 4, the thicknesses D and 2 of the housing 2 in which the primary coil 1 is mounted between the primary coil 1 and the secondary coil 3 are mounted.
This leads to a reduction in the thickness Da of the housing in which the secondary coil is mounted, and the strength of the housing 2 in which the primary coil 1 is mounted and the strength of the housing 4 in which the secondary coil 3 is mounted are reduced. .
【０００６】また、図５のように１次側コイル１の対向
面積Ａおよび２次側コイル３の対向面積Ａaを広くする
と、１次側コイル１が実装された筐体２および２次側コ
イル３の実装された筐体４の形状が大きくなってしま
う。Further, the primary side and the confronting area Aa of the facing area A and the secondary coil 3 of the coil 1 is wide, the primary coil 1 is mounted casing 2 and the secondary side as shown in FIG. 5 The shape of the housing 4 in which the coil 3 is mounted becomes large.
【０００７】図６のように１次側コイル１と２次側コイ
ル３を同一平面上に配置すると１次側コイル１と２次側
コイル３の磁気結合が向上するため大きな電力伝達が可
能になるが２次側コイル３の外径φaの大きさが１次側
コイル１の内径φとなり１次側コイルが実装された筐体
２の形状が大きくなってしまう等の課題があった。When the primary side coil 1 and the secondary side coil 3 are arranged on the same plane as shown in FIG. 6, the magnetic coupling between the primary side coil 1 and the secondary side coil 3 is improved so that a large electric power can be transmitted. However, there is a problem in that the size of the outer diameter φa of the secondary coil 3 becomes the inner diameter φ of the primary coil 1 and the size of the housing 2 in which the primary coil is mounted becomes large.
【０００８】また、１次側コイルにて発生する磁場が前
記電源装置の外部に漏れることによって、他の電子機器
にノイズ等の悪影響を及ぼすという課題があった。Further, there is a problem that the magnetic field generated in the primary coil leaks to the outside of the power supply device, which adversely affects other electronic equipment such as noise.
【０００９】本発明は上記のような従来の課題を解決し
極めて安価な方法で小型化ができ、より大きな電力伝達
を可能にし、外部の他の電子機器に磁気による悪影響を
及ぼさない非接触型の電源装置を提供することを目的と
するものである。The present invention solves the above-mentioned conventional problems, can be miniaturized by an extremely inexpensive method, enables larger power transmission, and does not have a bad influence of magnetism on other external electronic devices. It is an object of the present invention to provide a power supply device of.
【００１０】[0010]
【課題を解決するための手段】本発明は上記目的を達成
するために、非接触型の電源装置の１次側コイルの実装
されたプラスチック製の筐体と２次側コイルの実装され
たプラスチック製の筐体間の少なくともいずれか一方に
磁性体を形成させた構成にしたものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a non-contact type power supply device having a plastic housing on which a primary coil is mounted and a plastic housing on which a secondary coil is mounted. The magnetic body is formed on at least one of the manufactured housings.
【００１１】上記構成により、１次側コイルで発生した
磁束は筐体に形成された前記磁性体に集中して通るよう
になるため、磁束を効率良く２次側コイルに供給でき、
１次側コイルから２次側コイルへの電力伝達の効率を大
幅に改善でき、より大きな出力を取り出せる非接触型の
電源装置を実現できるものである。With the above structure, since the magnetic flux generated in the primary coil passes through the magnetic body formed in the housing in a concentrated manner, the magnetic flux can be efficiently supplied to the secondary coil.
It is possible to significantly improve the efficiency of power transmission from the primary side coil to the secondary side coil and realize a non-contact type power supply device capable of taking out a larger output.
【００１２】[0012]
【発明の実施の形態】本発明の請求項１記載の発明は、
電源を供給される第一のコイルを実装した第一の筐体
と、前記第一のコイルと対向する第二のコイルを実装し
てなる第二の筐体とで構成され、少なくとも上記筐体の
いずれか一方は上記第一、第二のコイル間に磁性体を形
成したプラスチックで構成したので、１次側コイルで発
生した磁束は、筐体に形成された前記磁性体に集中して
通るようになるため、磁束を効率良く２次側コイルに供
給でき、１次側コイルから２次側コイルへの電力伝達の
効率を大幅に改善でき、より大きな出力を取り出せる非
接触型の電源装置を実現できるものである。BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is
A first housing mounted with a first coil supplied with power, and a second housing mounted with a second coil facing the first coil, at least the housing Since either one of them is made of plastic in which a magnetic body is formed between the first and second coils, the magnetic flux generated in the primary coil passes through the magnetic body formed in the housing in a concentrated manner. Therefore, the magnetic flux can be efficiently supplied to the secondary side coil, the efficiency of power transmission from the primary side coil to the secondary side coil can be significantly improved, and a non-contact type power supply device that can take out a larger output can be provided. It can be realized.
【００１３】本発明の請求項２記載の発明は、電源を供
給される第一のコイルを実装した第一の筐体と、前記第
一のコイルと対向する第二のコイルを実装してなる第二
の筐体とで構成され、少なくとも上記筐体のいずれか一
方は上記第一、第二のコイルの外周部の外側に磁性体を
形成したプラスチックで構成したので、１次側コイルで
発生した磁束は筐体に形成された前記磁性体に集中して
通るようになるため、外部に磁束を漏れなくすることが
でき、外部の電子機器に磁気の悪影響を及ぼさない非接
触型の電源装置を実現できるものである。According to a second aspect of the present invention, a first housing having a first coil to which power is supplied is mounted, and a second coil facing the first coil is mounted. It is composed of a second housing, and at least one of the housings is composed of a plastic having a magnetic material formed on the outside of the outer periphery of the first and second coils. Since the generated magnetic flux concentrates and passes through the magnetic body formed in the housing, the magnetic flux can be prevented from leaking to the outside, and the non-contact type power supply device that does not adversely affect the magnetism to external electronic devices. Can be realized.
【００１４】以下、本発明の実施の形態について図１、
図２により説明する。なお、説明にあたっては、従来技
術と同一部分は同一番号を付して説明する。Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. In the description, the same parts as those in the conventional technique will be denoted by the same reference numerals.
【００１５】（実施の形態１）図１は本発明の一実施の
形態の電源装置の構成を示す断面斜視図である。同図に
おいて１は第一のコイルとしての１次側コイル、１ａは
１次側コイル１の巻線、１ｂは１次側コイル１のコア、
２は１次側コイル１を実装したプラスチック製の筐体、
２ａは筐体２の外周に設けられたガイド、３は第二のコ
イルとしての２次側コイル、３ａは２次側コイル３の巻
線、３ｂは２次側コイル３のコア、４は２次側コイル３
を実装したプラスチック製の筐体、５は電源コード、６
は１次側回路、７は２次側回路、８は１次側コイル１か
ら発生する磁束が通る位置にあり、１次側コイル１を実
装した筐体２にインサート成形された磁性体、９は１次
側コイル１から発生する磁束が通る位置にあり、２次側
コイル３を実装した筐体４にインサート成形された磁性
体である。(Embodiment 1) FIG. 1 is a sectional perspective view showing the structure of a power supply device according to an embodiment of the present invention. In the figure, 1 is a primary coil as a first coil, 1a is a winding of the primary coil 1, 1b is a core of the primary coil 1,
2 is a plastic housing on which the primary coil 1 is mounted,
Reference numeral 2a is a guide provided on the outer periphery of the housing 2, 3 is a secondary coil as a second coil, 3a is a winding of the secondary coil 3, 3b is a core of the secondary coil 3, and 4 is 2 Secondary coil 3
Plastic housing with 5 mounted, 5 power cord, 6
Is a primary side circuit, 7 is a secondary side circuit, 8 is a position through which a magnetic flux generated from the primary side coil 1 passes, and a magnetic body insert-molded in a housing 2 in which the primary side coil 1 is mounted, 9 Is a magnetic body that is located at a position where the magnetic flux generated from the primary coil 1 passes and is insert-molded in the housing 4 in which the secondary coil 3 is mounted.
【００１６】以上のように構成された非接触型の電源装
置について、その動作を説明する。電源コード５を商用
電源に接続すると、電源コード５に電気的に接続された
１次側回路６に電力が供給される。１次側回路６にて電
力の周波数や電流値等を変換した後、１次側回路６に電
気的に接続された１次側コイル１に電力が供給される。
このことによって、１次側コイル１の巻線１ａから磁束
が発生する。磁性体８は筐体２に形成されており、１次
側コイル１のコア１ｂの延長線上に位置する。The operation of the non-contact type power supply device configured as described above will be described. When the power cord 5 is connected to the commercial power source, power is supplied to the primary side circuit 6 electrically connected to the power cord 5. After the frequency of the power, the current value, etc. are converted in the primary side circuit 6, the power is supplied to the primary side coil 1 electrically connected to the primary side circuit 6.
As a result, magnetic flux is generated from the winding 1a of the primary coil 1. The magnetic body 8 is formed on the housing 2, and is located on an extension of the core 1b of the primary coil 1.
【００１７】また磁性体９は筐体４に形成されていて２
次側コイル３のコア３ｂの延長線上に配置でき、さら
に、ガイド２ａによって、筐体２の上面に筐体４を位置
決め載置できるので磁性体８と磁性体９を一直線上に配
置できる。従って１次側コイル１から発生した磁束は一
直線上に並んだコア１ｂ、磁性体８、磁性体９、コア３
ｂによって漏れることなく、効率良く、２次側コイル３
に供給される。２次側コイル３の巻線３ａによって前記
磁束が電力に変換され、２次側コイル３に電気的に接続
された２次側回路７に電力が供給される。The magnetic material 9 is formed on the housing 4 and
It can be arranged on an extension of the core 3b of the secondary coil 3, and the housing 4 can be positioned and mounted on the upper surface of the housing 2 by the guide 2a, so that the magnetic bodies 8 and 9 can be arranged in a straight line. Therefore, the magnetic flux generated from the primary coil 1 is aligned with the core 1b, the magnetic body 8, the magnetic body 9, the core 3
The secondary coil 3 efficiently without leakage due to b
Is supplied to. The magnetic flux is converted into electric power by the winding 3a of the secondary coil 3, and the electric power is supplied to the secondary circuit 7 electrically connected to the secondary coil 3.
【００１８】ここでは、磁性体８および磁性体９はそれ
ぞれプラスチック製の筐体２および筐体４にインサート
成形されたものとしたが、磁性体８および磁性体９をネ
ジや接着剤等で筐体２および筐体４に組み付けたり、筐
体２および筐体４と同時に金型成形する構成としても良
く、また、磁性体８、磁性体９のいずれかのみを形成し
たものでも適宜選択して良い。Here, the magnetic body 8 and the magnetic body 9 are insert-molded in the plastic casing 2 and the casing 4, respectively. However, the magnetic body 8 and the magnetic body 9 are casing by screws or adhesives. It may be assembled to the body 2 and the housing 4, or may be molded with the housing 2 and the housing 4 at the same time. Further, one formed with only the magnetic body 8 or the magnetic body 9 may be appropriately selected. good.
【００１９】（実施の形態２）図２は本発明の他の実施
形態の電源装置の構成を示す断面斜視図である。同図に
おいて、１は第一のコイルとしての１次側コイル、１ａ
は１次側コイル１の巻線、１ｂは１次側コイル１のコ
ア、２は１次側コイル１を実装したプラスチック製の筐
体、２ａは筐体２の外周に設けられたガイド、３は第二
のコイルとしての２次側コイル、３ａは２次側コイル３
の巻線、３ｂは２次側コイル３のコア、４は２次側コイ
ル３を実装したプラスチック製の筐体、５は電源コー
ド、６は１次側回路、７は２次側回路、８ａは１次側コ
イル１の外周外側にあり、１次側コイル１を実装した筐
体２にインサート成形された磁性体、９ａは１次側コイ
ル１から発生する磁束が通る位置にあり、２次側コイル
３を実装した筐体４に２次側コイル３の外周外側にイン
サート成形された磁性体である。(Second Embodiment) FIG. 2 is a sectional perspective view showing the structure of a power supply device according to another embodiment of the present invention. In the figure, 1 is a primary side coil as a first coil, 1a
Is a winding of the primary side coil 1, 1b is a core of the primary side coil 1, 2 is a plastic housing on which the primary side coil 1 is mounted, 2a is a guide provided on the outer periphery of the housing 2, 3 Is a secondary coil as a second coil, 3a is a secondary coil 3
Windings, 3b is a core of the secondary coil 3, 4 is a plastic housing in which the secondary coil 3 is mounted, 5 is a power cord, 6 is a primary circuit, 7 is a secondary circuit, 8a Is outside the outer circumference of the primary coil 1 and is a magnetic body insert-molded in the housing 2 in which the primary coil 1 is mounted. 9a is a position where the magnetic flux generated from the primary coil 1 passes and the secondary It is a magnetic body that is insert-molded on the outside of the outer periphery of the secondary coil 3 in the housing 4 in which the side coil 3 is mounted.
【００２０】以上のように構成された非接触型の電源装
置についてその動作を説明する。電源コード５を商用電
源に接続すると、電源コード５に電気的に接続された１
次側回路６に電力が供給される。１次側回路６にて電力
の周波数や電流値等を変換した後、１次側回路６に電気
的に接続された１次側コイル１に電力が供給される。こ
のことによって、１次側コイル１の巻線１ａから磁束が
発生する。The operation of the non-contact type power supply device configured as described above will be described. When the power cord 5 is connected to the commercial power source, it is electrically connected to the power cord 5.
Electric power is supplied to the secondary circuit 6. After the frequency of the power, the current value, etc. are converted in the primary side circuit 6, the power is supplied to the primary side coil 1 electrically connected to the primary side circuit 6. As a result, magnetic flux is generated from the winding 1a of the primary coil 1.
【００２１】磁性体８ａは筐体２に輪状に形成されてお
り、１次側コイル１の外周に位置し、また、磁性体９ａ
は筐体４に輪状に形成されていて、２次側コイル３の外
周に位置し、さらにガイド２ａによって、筐体２の上面
に筐体４を位置決め載置でき、磁性体８ａと磁性体９ａ
を一直線上に配置できるので、１次側コイル１から発生
した磁束はコア１ｂ、コア３ｂを通ってから１次側コイ
ル１の外側に放出されるが、ほとんどの磁束は磁性体８
ａと磁性体９ａを通るため、外部に磁束が漏れにくく外
部の他の電子機器に悪影響を及ぼしにくい。The magnetic body 8a is formed in a ring shape on the housing 2, is located on the outer circumference of the primary coil 1, and has a magnetic body 9a.
Is formed in a ring shape on the housing 4, is located on the outer circumference of the secondary coil 3, and can be positioned and mounted on the upper surface of the housing 2 by the guide 2a.
Can be arranged in a straight line, the magnetic flux generated from the primary coil 1 passes through the cores 1b and 3b and is then emitted to the outside of the primary coil 1.
Since the magnetic flux passes through a and the magnetic body 9a, the magnetic flux is unlikely to leak to the outside and adversely affects other external electronic devices.
【００２２】このようにして、２次側コイル３に磁束が
供給され、さらに２次側コイル３の巻線３ａによって前
記磁束が電力に変換され、２次側コイル３に電気的に接
続された２次側回路７に電力が供給される。In this way, the magnetic flux is supplied to the secondary coil 3, and the magnetic flux is converted into electric power by the winding 3a of the secondary coil 3 and electrically connected to the secondary coil 3. Electric power is supplied to the secondary circuit 7.
【００２３】ここでは、磁性体８ａおよび磁性体９ａ
は、それぞれ筐体２および筐体４にインサート成形され
たものとしたが、磁性体８ａおよび磁性体９ａをネジや
接着剤等で筐体２および筐体４に組み付けたり、筐体２
および筐体４と同時に金型成形する構成としても良い。Here, the magnetic substance 8a and the magnetic substance 9a are used.
In the above description, the case 2 and the case 4 are insert-molded, respectively. However, the magnetic body 8a and the magnetic body 9a are assembled to the case 2 and the case 4 with screws or an adhesive, or
Also, a configuration may be adopted in which molding is performed simultaneously with the case 4.
【００２４】さらに、磁性体８ａおよび磁性体９ａをそ
れぞれ筐体２および筐体４に形成するとともに実施の形
態１の磁性体８および磁性体９をそれぞれ筐体２および
筐体４に形成すると磁束が外部に漏れにくい上、効率良
く１次側コイル１から２次側コイル３に供給されるもの
である。なお、磁性体８ａまたは磁性体９ａのみを設け
ることにしても良い。Further, when the magnetic bodies 8a and 9a are formed in the housings 2 and 4, respectively, and the magnetic bodies 8 and 9 of the first embodiment are formed in the housings 2 and 4, respectively, magnetic flux is generated. Is less likely to leak to the outside and is efficiently supplied from the primary coil 1 to the secondary coil 3. Note that only the magnetic body 8a or the magnetic body 9a may be provided.
【００２５】[0025]
【発明の効果】以上のように本発明は、第一のコイルと
第二のコイルの磁束が通る部分の筐体の一部分に磁性体
を形成させる極めて簡単な構成で１次側から２次側へ効
率良い電力伝達が可能な電源装置を実現できるものであ
る。As described above, the present invention has an extremely simple structure in which the magnetic material is formed in a part of the housing where the magnetic flux of the first coil and the second coil passes, and from the primary side to the secondary side. The power supply device capable of efficiently transmitting power to
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施の形態の電源装置の断面斜視図FIG. 1 is a sectional perspective view of a power supply device according to an embodiment of the present invention.
【図２】同他の実施の形態の電源装置の断面斜視図FIG. 2 is a cross-sectional perspective view of a power supply device according to another embodiment.
【図３】従来の電源装置の断面斜視図FIG. 3 is a sectional perspective view of a conventional power supply device.
【図４】同要部である１次側コイル、２次側コイルの関
係を示す断面図FIG. 4 is a cross-sectional view showing the relationship between the primary coil and the secondary coil, which are the main parts of the same.
【図５】同要部である他の１次側コイル、２次側コイル
の関係を示す断面図FIG. 5 is a cross-sectional view showing the relationship between another primary side coil and a secondary side coil, which are the same main parts.
【図６】同要部である他の１次側コイル、２次側コイル
の関係を示す断面図FIG. 6 is a cross-sectional view showing a relationship between another primary side coil and a secondary side coil, which are the same main parts.
１ １次側コイル １ａ １次側コイルの巻線 １ｂ １次側コイルのコア ２ １次側コイルが実装された筐体 ２ａ ガイド ３ ２次側コイル ３ａ ２次側コイルの巻線 ３ｂ ２次側コイルのコア ４ ２次側コイルが実装された筐体 ８ 磁性体 ８ａ 磁性体 ９ 磁性体 ９ａ 磁性体 1 primary coil 1a primary coil winding 1b primary coil core 2 housing on which primary coil is mounted 2a guide 3 secondary coil 3a secondary coil winding 3b secondary Coil core 4 Casing in which the secondary coil is mounted 8 Magnetic substance 8a Magnetic substance 9 Magnetic substance 9a Magnetic substance
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高山 喜生 大阪府門真市大字門真1006番地 松下電器 産業株 式会社内 (72)発明者 拜田 博 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshio Takayama 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. In the company
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8148815AJPH09330837A (en) | 1996-06-11 | 1996-06-11 | Power supply |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8148815AJPH09330837A (en) | 1996-06-11 | 1996-06-11 | Power supply |
| Publication Number | Publication Date |
|---|---|
| JPH09330837Atrue JPH09330837A (en) | 1997-12-22 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8148815APendingJPH09330837A (en) | 1996-06-11 | 1996-06-11 | Power supply |
| Country | Link |
|---|---|
| JP (1) | JPH09330837A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9349530B2 (en) | 2012-04-10 | 2016-05-24 | Panasonic Intellectual Property Management Co., Ltd. | Wireless power transmission system, power transmitting device, and power receiving device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9349530B2 (en) | 2012-04-10 | 2016-05-24 | Panasonic Intellectual Property Management Co., Ltd. | Wireless power transmission system, power transmitting device, and power receiving device |
| US10008323B2 (en) | 2012-04-10 | 2018-06-26 | Panasonic Intellectual Property Management Co., Ltd. | Wireless power transmission system, power transmitting device, and power receiving device |
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| A977 | Report on retrieval | Free format text:JAPANESE INTERMEDIATE CODE: A971007 Effective date:20041228 | |
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