JP3430803B2 - Non-contact power transmission device - Google Patents
Non-contact power transmission deviceInfo
- Publication number
- JP3430803B2 JP3430803B2 JP16495796A JP16495796A JP3430803B2 JP 3430803 B2 JP3430803 B2 JP 3430803B2 JP 16495796 A JP16495796 A JP 16495796A JP 16495796 A JP16495796 A JP 16495796A JP 3430803 B2 JP3430803 B2 JP 3430803B2
- Authority
- JP
- Japan
- Prior art keywords
- induction coil
- side member
- power
- coil
- induction
- 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.)
- Expired - Fee Related
Links
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は給電側部材に設けら
れて電力が加えられる誘導コイルと、被給電側部材に設
けられて誘導コイルが発生する磁界内におかれる被誘導
コイルとからなる非接触電力伝達装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a non-induction coil which is provided in a member on the power feeding side and to which electric power is applied, and an induction coil which is provided in a member on the power feeding side and placed in a magnetic field generated by the induction coil. The present invention relates to a contact power transmission device.
【０００２】[0002]
【従来の技術】非接触電力伝達装置では、図７に示すよ
うに、給電側部材１に設けた誘導コイル２と、被給電側
部材３に設けた被誘導コイル４とを対向させるにあた
り、誘導コイル２に挿通したコア５を被給電側部材３側
に突出させて被誘導コイル４の内側にコア５の一端を位
置させることが一般に行われている。この場合、電力伝
達効率は高くなるものの、被給電側部材３側のコア５が
差し込まれる部分は、コア５に加えて給電側部材１側の
コア５を被覆する部分と、被給電側部材３側の被誘導コ
イル４内面を覆う部分とが被誘導コイル３の内周側に位
置することになるために、被給電側部材３側ではその太
さがかなり大きくなり、たとえば電動歯ぶらしのような
細みの器体の一端に被誘導コイル４を配置することは困
難となる。2. Description of the Related Art In a non-contact power transmission device, as shown in FIG. 7, when an induction coil 2 provided on a power feeding side member 1 and an induction coil 4 provided on a power feeding side member 3 are opposed to each other, induction is performed. It is generally performed that the core 5 inserted into the coil 2 is projected toward the power-supplied side member 3 to position one end of the core 5 inside the guided coil 4. In this case, although the power transmission efficiency is high, the portion of the power-supplied-side member 3 side into which the core 5 is inserted covers the core 5 and the power-supply-side member 1-side core 5 in addition to the core 5, and the power-supplied-side member 3 Since the portion that covers the inner surface of the guided coil 4 on the side is located on the inner peripheral side of the guided coil 3, the thickness of the power-supplied side member 3 side is considerably large. It is difficult to dispose the induction coil 4 at one end of such a thin body.
【０００３】このために、被給電側部材３が細みの器体
を有するものにおいては、特開平５−９１６７３号公報
などに示されているように、給電側部材１と被給電側部
材３との平面同士を対向させるものとし、誘導コイル２
や被誘導コイル４にはコアの無いタイプを使用し、コア
を使用するとしてもドラムコアを使用していた。For this reason, when the power-supplied side member 3 has a thin body, as shown in Japanese Patent Laid-Open No. 5-91673, the power-supply-side member 1 and the power-supplied side member 3 are provided. Induction coil 2
Also, the induction coil 4 is of a type without a core, and even if a core is used, a drum core is used.
【０００４】[0004]
【発明が解決しようとする課題】この場合、誘導コイル
から被誘導コイルに小さな電力しか伝達することができ
ず、電力伝達効率の向上がのぞまれている。本発明はこ
のような点に鑑み為されたものであり、その目的とする
ところは給電側部材と被給電側部材とが平面で対向する
ものにおいても高い電力伝達効率を得ることができる非
接触電力伝達装置を提供するにある。In this case, only a small amount of electric power can be transmitted from the induction coil to the induced coil, and improvement in power transmission efficiency is desired. The present invention has been made in view of the above points, and an object thereof is a non-contact type that can obtain high power transmission efficiency even when a power feeding side member and a power receiving side member face each other in a plane. A power transmission device is provided.
【０００５】[0005]
【課題を解決するための手段】しかして本発明は、給電
側部材に設けられて電力が加えられる誘導コイルと、被
給電側部材に設けられた被誘導コイルとからなり、給電
側部材と被給電側部材との平面同士の対向で誘導コイル
の軸方向に位置する被誘導コイルが誘導コイルによる磁
界内におかれる非接触電力伝達装置において、誘導コイ
ル内に棒状コアを配しているとともに、誘導コイルの内
径よりも被誘導コイルの内径を大としていることに特徴
を有している。 SUMMARY OF THE INVENTION The present invention, however, comprises an induction coil provided on a power feeding side member to which electric power is applied, and an induction coil provided on a power feeding side member. In a non-contact power transmission device in which the induction coil located in the axial direction of the induction coil in the plane facing each other with the power supply side member is placed in the magnetic field of the induction coil, the bar-shaped core is arranged in the induction coil , Induction coil
The feature is that the inner diameter of the induced coil is larger than the diameter .
【０００６】また本発明は、コイルをその巻幅が巻高さ
より小の偏平型としていることに他の特徴を有してい
る。 Another feature of the present invention is that the coil is of a flat type having a winding width smaller than the winding height.
It
【０００７】[0007]
【発明の実施の形態】図１は本発明の基本形態を示して
おり、給電側部材１の内部には電力が加えられる誘導コ
イル２が配設されているとともに、誘導コイル３内には
棒状コア５が配設されている。そして給電側部材１の平
面に同じく平面を対向させる被給電側部材３内には被誘
導コイル４が配設されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a basic form of the present invention . An induction coil 2 to which electric power is applied is arranged inside a power supply side member 1, and a rod-shaped induction coil 3 is formed inside the induction coil 3. The core 5 is arranged. An induction coil 4 is arranged in the power-supplied side member 3 that is also opposed to the plane of the power-supply-side member 1 by a plane.
【０００８】給電側部材１側から被給電側部材３側に電
力を伝達するにあたっては、両者の平面同士を対向接触
させて誘導コイル２の軸方向に被誘導コイル４を位置さ
せ、誘導コイル３に電力を加えたことで発生する磁界内
に被誘導コイル４をおくわけであるが、この時、誘導コ
イル２内に配した棒状コア５が被誘導コイル４を通る磁
束を増加させるために、被誘導コイル４側への電力伝達
効率が高くなるものである。In transmitting electric power from the power supply side member 1 side to the power supply side member 3 side, the induction coil 4 is positioned in the axial direction of the induction coil 2 with the flat surfaces of the two facing each other. The induced coil 4 is placed in the magnetic field generated by applying electric power to the induction coil 4. At this time, since the rod-shaped core 5 arranged in the induction coil 2 increases the magnetic flux passing through the induced coil 4, The efficiency of power transmission to the induced coil 4 side is increased.
【０００９】図２に示すように、被誘導コイル４内にも
棒状コア５を配置すると更に好ましい結果を得ることが
できる。As shown in FIG. 2, a more preferable result can be obtained by disposing the rod-shaped core 5 also in the induced coil 4.
【００１０】もっとも、棒状コア５としてはその長さが
コイル２，４の軸方向厚み以上のものを用いることとす
る。However, as the rod-shaped core 5, it is assumed that the length thereof is greater than the axial thickness of the coils 2 and 4.
【００１１】そして、本発明においては、図３に示すよ
うに、誘導コイル２の内径Ａよりも被誘導コイル４の内
径を大きくしている。 In the present invention, as shown in FIG. 3, the inner diameter of the induction coil 4 is larger than the inner diameter A of the induction coil 2 .
【００１２】さらにコイル２，４には図４に示すよう
に、巻幅ｙが巻高さｘより小の偏平型のものを用いる
と、両コイル２，４間の結合を良くすることができて効
率を更に上げることができる。Further, as shown in FIG. 4, when the coils 2 and 4 are flat type coils having a winding width y smaller than the winding height x, the coupling between the coils 2 and 4 can be improved. Can further increase efficiency.
【００１３】図５は上記コイル２，４の設置に適合させ
たコイル枠６を示しており、図中６０はコイル端子、６
１はコア固定孔である。コイル端子６０を異なる２方向
に出しているのは、コイル枠６をいろんな方向でプリン
ト基板に連結することができるようにするためである。FIG. 5 shows a coil frame 6 adapted for installation of the coils 2 and 4, and 60 in the figure is a coil terminal and 6
Reference numeral 1 is a core fixing hole. The coil terminals 60 are provided in two different directions so that the coil frame 6 can be connected to the printed circuit board in various directions.
【００１４】図６に示すコイル枠６も上記コイル２，４
の設置に適合させたものであり、ここではコイル巻線の
自動化を可能とするために閉じた底面に巻線用心棒の通
る孔６３を設けている。またコア固定孔６１の内面には
所要の間隔で内方へと突出する小さなリブ６４を設け
て、コア５を圧入固定することができるようにして、コ
イル２，４の巻線の自動化を含めて組み立て時間の短縮
化を図っている。図中６５はプリント基板への固定のた
めのフック、６６はプリント基板への固定に際しての逆
入れ防止のための突起である。The coil frame 6 shown in FIG. 6 also includes the coils 2 and 4 described above.
In order to enable automation of the coil winding, a hole 63 through which the winding mandrel passes is provided in the closed bottom surface. In addition, small ribs 64 projecting inward are provided on the inner surface of the core fixing hole 61 at a required interval so that the core 5 can be press-fitted and fixed, including automation of winding of the coils 2 and 4. To reduce the assembly time. In the figure, reference numeral 65 is a hook for fixing to the printed circuit board, and 66 is a protrusion for preventing reverse insertion when fixing to the printed circuit board.
【００１５】[0015]
【発明の効果】以上のように本発明においては、給電側
部材に設けられて電力が加えられる誘導コイルと、被給
電側部材に設けられた被誘導コイルとからなり、給電側
部材と被給電側部材との平面同士の対向で誘導コイルの
軸方向に位置する被誘導コイルが誘導コイルによる磁界
内におかれるものにおける動力伝達効率を、誘導コイル
内に配した棒状コアで向上させているとともに、誘導コ
イルの内径よりも被誘導コイルの内径を大として誘導コ
イルと被誘導コイルとの間の結合を向上させているもの
であり、平面同士を対向させるという小型化に適したも
のにおいても大きい電力の伝達ができるものである。As described above, according to the present invention, the power feeding side member and the power fed side member are composed of the induction coil provided on the power feeding side member to which electric power is applied and the induction coil provided on the power fed side member. the power transmission efficiency in which the induction coil is located in the axial direction of the induction coil in opposing planes between the side member is placed in the magnetic field by the induction coil, with which improves bar-shaped core disposed in the induction coil , Induction
Induction coil with the inner diameter of the induced coil larger than the inner diameter of the coil.
This is to improve the coupling between the coil and the induction coil, and it is possible to transmit a large amount of power even in a case where the flat surfaces are opposed to each other and which is suitable for downsizing.
【００１６】そして本願の他の発明においては、給電側
部材と被給電側部材との平面同士の対向で誘導コイルの
軸方向に位置する被誘導コイルが誘導コイルによる磁界
内におかれるものにおいて、誘導コイル内に棒状コアを
配しているとともに各コイルをその巻幅が巻高さより小
の偏平型として誘導コイルと被誘導コイルとの間の結合
を向上させているとともに棒状コアの存在のために、や
はり良好な結果を得ることができる。In another invention of the present application, the power supply side
Of the induction coil with the flat surfaces of the member and the power-supplied side member facing each other.
The induced coil located in the axial direction is the magnetic field generated by the induction coil.
For those placed inside, a rod-shaped core is placed inside the induction coil.
The winding width of each coil is smaller than the winding height.
As a flat type, the coupling between the induction coil and the induced coil is improved , and due to the existence of the rod-shaped core,
Beam good results can be obtained.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の基本形態の一例の断面図である。FIG. 1 is a sectional view of an example of a basic form of the present invention.
【図２】他例の断面図である。FIG. 2 is a sectional view of another example.
【図３】本発明の実施の一例の断面図である。FIG. 3 is a sectional view of an example of implementation of the present invention .
【図４】他例のコイルの説明図である。FIG. 4 is an explanatory diagram of a coil of another example .
【図５】同上に用いるコイル枠の一例を示すもので、
(a)は正面図、(b)は側面図、(c)は平面図である。FIG. 5 shows an example of a coil frame used in the above,
(a) is a front view, (b) is a side view, and (c) is a plan view.
【図６】コイル枠の他例を示すもので、(a)は水平断面
図、(b)は断面図である。6A and 6B show another example of the coil frame, in which FIG. 6A is a horizontal sectional view and FIG. 6B is a sectional view.
【図７】従来例の断面図である。FIG. 7 is a sectional view of a conventional example.
１ 給電側部材 ２ 誘導コイル ３ 被給電側部材 ４ 被誘導コイル ５ コア 1 Power supply side member 2 induction coil 3 Powered member 4 Induced coil 5 cores
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−319232（ＪＰ，Ａ) 特開 平７−106170（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01F 38/14 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-319232 (JP, A) JP-A-7-106170 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H01F 38/14
Claims (2)
る誘導コイルと、被給電側部材に設けられた被誘導コイ
ルとからなり、給電側部材と被給電側部材との平面同士
の対向で誘導コイルの軸方向に位置する被誘導コイルが
誘導コイルによる磁界内におかれる非接触電力伝達装置
において、誘導コイル内に棒状コアを配しているととも
に、誘導コイルの内径よりも被誘導コイルの内径を大と
していることを特徴とする非接触電力伝達装置。1. An induction coil provided on a power feeding side member to which electric power is applied, and an induction coil provided on a power feeding side member, wherein flat surfaces of the power feeding side member and the power feeding side member face each other. the contactless power transfer system which the induction coils positioned in the axial direction of the induction coil is placed in the magnetic field by the induction coil and are arranged bar-like core in the induction coil together
In addition, make the inner diameter of the induced coil larger than the inner diameter of the induction coil.
Contactless power transmission apparatus characterized by being.
る誘導コイルと、被給電側部材に設けられた被誘導コイ
ルとからなり、給電側部材と被給電側部材との平面同士
の対向で誘導コイルの軸方向に位置する被誘導コイルが
誘導コイルによる磁界内におかれる非接触電力伝達装置
において、誘導コイル内に棒状コアを配しているととも
に、各コイルはその巻幅が巻高さより小の偏平型である
ことを特徴とする非接触電力伝達装置。2. A power supply side member provided with electric power
Induction coil and the induction coil installed on the power-supplied side member.
Planes of the power supply side member and the power supply side member
The induced coil located in the axial direction of the induction coil facing each other
Contactless power transfer device placed in magnetic field by induction coil
At the same time, a bar-shaped core is placed inside the induction coil.
In addition, each coil is a flat type whose winding width is smaller than the winding height.
A non-contact power transmission device characterized by the above .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16495796A JP3430803B2 (en) | 1996-06-25 | 1996-06-25 | Non-contact power transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16495796A JP3430803B2 (en) | 1996-06-25 | 1996-06-25 | Non-contact power transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1012468A JPH1012468A (en) | 1998-01-16 |
| JP3430803B2 true JP3430803B2 (en) | 2003-07-28 |
Family
ID=15803084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16495796A Expired - Fee Related JP3430803B2 (en) | 1996-06-25 | 1996-06-25 | Non-contact power transmission device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3430803B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5363720B2 (en) * | 2007-11-15 | 2013-12-11 | リコーエレメックス株式会社 | Non-contact transfer device and transfer core |
| JP2016073059A (en) * | 2014-09-29 | 2016-05-09 | セイコーインスツル株式会社 | Non-contact power transmission device, electronic apparatus with non-contact power transmission device mounted thereon, and manufacturing method of non-contact power transmission device |
-
1996
- 1996-06-25 JP JP16495796A patent/JP3430803B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1012468A (en) | 1998-01-16 |
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