JP2003142327A - Non-contact feeder system - Google Patents
Non-contact feeder systemInfo
- Publication number
- JP2003142327A JP2003142327A JP2001334720A JP2001334720A JP2003142327A JP 2003142327 A JP2003142327 A JP 2003142327A JP 2001334720 A JP2001334720 A JP 2001334720A JP 2001334720 A JP2001334720 A JP 2001334720A JP 2003142327 A JP2003142327 A JP 2003142327A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- wiring board
- printed wiring
- power
- power feeding
- 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
- Parts Printed On Printed Circuit Boards (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、分離トランスが有
する給電コイルと受電コイルとの間の磁気結合によって
給電部から受電部に電力を伝達し、受電部に接続された
負荷（各種電子装置・機器）に電力を供給する非接触給
電装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention transmits electric power from a power feeding section to a power receiving section by magnetic coupling between a power feeding coil and a power receiving coil included in a separation transformer, and loads connected to the power receiving section (various electronic devices. The present invention relates to a non-contact power supply device that supplies electric power to equipment.
【０００２】[0002]
【従来の技術】非接触給電装置に組込まれる給電コイル
および／または受電コイルは、たとえば図１０に示すよ
うに、印刷配線基板１の上にプリントパターン（厚さ３
５〜７０μｍ）で形成されたコイルパターン部２と、印
刷配線基板１に穿たれた貫通孔３を挿通して前記コイル
パターン部２の中心部に嵌め込まれるトランスコア４と
で構成される。ここで、給電コイルのコイルパターン部
２は、印刷配線基板１上に形成されたインバータ回路部
５に接続される。一方、受電コイルのコイルパターン部
２は、印刷配線基板１上に実装され、整流回路部５と接
続される。しかし、大電流を扱う分離トランスを上述し
たように構成することは困難である。また、上記構成の
コイルは、線積率が小さいためインダクタンス値を大き
くできず、インバータ回路部５のスイッチング周波数の
高周波を招来し、電力損失を増大させる。2. Description of the Related Art A power feeding coil and / or a power receiving coil incorporated in a non-contact power feeding device has a printed pattern (thickness 3) on a printed wiring board 1 as shown in FIG.
5 to 70 μm), and a transformer core 4 which is inserted into the through hole 3 formed in the printed wiring board 1 and is fitted in the central portion of the coil pattern portion 2. Here, the coil pattern portion 2 of the power feeding coil is connected to the inverter circuit portion 5 formed on the printed wiring board 1. On the other hand, the coil pattern portion 2 of the power receiving coil is mounted on the printed wiring board 1 and connected to the rectifier circuit portion 5. However, it is difficult to configure the separation transformer that handles a large current as described above. Further, since the coil having the above-described configuration has a small linear area ratio, the inductance value cannot be increased, which invites a high switching frequency of the inverter circuit unit 5, resulting in an increase in power loss.
【０００３】このため、大電力用の非接触給電装置の給
電コイルおよび受電コイルは、例えば、図１１に示すよ
うに、リッツ線等を巻回した線積率の高いコイル本体６
を形成し、このコイル本体６をポット型のトランスコア
７に嵌め込みブラケット８を用いて印刷配線基板１上に
組み込んで構成される。この際、コイル本体６のリード
（リッツ線）端末９ａ、９ｂ、９ｃは、印刷配線基板１
に設けられたランド部１０ａ、１０ｂ、１０ｃに半田付
けして、インバータ回路部（整流回路部）５に接続され
る。Therefore, as shown in FIG. 11, the power feeding coil and the power receiving coil of the non-contact power feeding device for high power are, for example, as shown in FIG.
The coil main body 6 is fitted in the pot type transformer core 7 and is assembled on the printed wiring board 1 by using the bracket 8. At this time, the lead (Litz wire) terminals 9a, 9b, 9c of the coil body 6 are connected to the printed wiring board 1
It is connected to the inverter circuit section (rectifier circuit section) 5 by soldering to the land sections 10a, 10b, and 10c provided on the.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、図１１
に示す給電コイルや受電コイルは、フェライトコア等か
らなる重量の重いトランスコアを使用し、また、ブラケ
ット８を用いてコイル本体６を印刷配線基板１に取付け
るので、その組付け作業が煩雑であり、製造コストが高
い。さらには、給電コイルと受電コイルの機械的位置関
係が、振動によって変化したり、あるいは組み付けの誤
差を有していると、負荷電圧が変動しやすい、あるいは
変化するという問題がある。However, as shown in FIG.
As the power feeding coil and the power receiving coil shown in (1), a heavy transformer core such as a ferrite core is used, and since the coil body 6 is attached to the printed wiring board 1 using the bracket 8, the assembling work is complicated. , The manufacturing cost is high. Furthermore, if the mechanical positional relationship between the power feeding coil and the power receiving coil changes due to vibration or there is an error in assembly, there is a problem that the load voltage is likely to change or changes.
【０００５】本発明は、上記問題を解決するためになさ
れたものであり、コイルのインダクタンス値を大きくす
るトランスコアをブラケット等を使用せずに簡易に印刷
配線基板に取付けることができ、その小型化・ローコス
ト化を図ると共に、負荷電圧が振動の影響を受け難くす
ることができる簡易な構造の非接触給電装置を提供する
ことを目的とする。The present invention has been made in order to solve the above problems, and a transformer core for increasing the inductance value of a coil can be easily attached to a printed wiring board without using a bracket or the like, and the size thereof can be reduced. It is an object of the present invention to provide a non-contact power feeding device having a simple structure that can reduce the load voltage from being affected by vibrations while achieving cost reduction and cost reduction.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に本発明によれば、請求項１では、互いに磁気結合させ
て設けられた給電コイルと受電コイルとを備えた非接触
給電装置であって、前記各コイルは、コイル本体と、こ
のコイル本体の中心部を挿通して設けられる中心部コア
およびこの中心部コアの一端部に連接されて前記コイル
本体の周囲に位置付けられる外部コアからなるトランス
コアをそれぞれ具備してなり、前記給電コイルおよび／
または受電コイルのコイル本体を、所定の印刷配線基板
の表面に実装すると共に、当該コイルのトランスコアを
なす前記中心部コアおよび外部コアを前記印刷配線基板
に設けられたコア貫通孔を挿通させて該印刷配線基板の
裏面側から前記コイル本体に組み付けた非接触給電装置
が提供される。To achieve the above object, according to the present invention, in claim 1, there is provided a contactless power feeding device comprising a power feeding coil and a power receiving coil which are magnetically coupled to each other. Each of the coils includes a coil body, a central core provided by inserting the central portion of the coil body, and an external core connected to one end of the central core and positioned around the coil body. Each of which has a transformer core,
Alternatively, the coil body of the power receiving coil is mounted on the surface of a predetermined printed wiring board, and the central core and the outer core forming the transformer core of the coil are inserted through the core through holes provided in the printed wiring board. There is provided a non-contact power supply device assembled to the coil body from the back surface side of the printed wiring board.
【０００７】このように構成された非接触給電装置であ
れば、所定の印刷配線基板の表面に実装されたコイル本
体に、印刷配線基板の裏面側からトランスコアの中心部
コアと外部コアとが位置付けられるので、コイルのイン
ダクタンス値を大きくすることができる。また、トラン
スコアを印刷配線基板裏面からコア貫通孔に挿通されて
印刷配線基板裏面に当接してコイル本体に組み付けるだ
けなので、ブラケット等を使用することなくトランスコ
アを印刷配線基板に簡易に取付けることができ、非接触
給電装置の小型化・ローコスト化が図れる。In the non-contact power feeding device having the above-described structure, the central core of the transformer core and the outer core are mounted on the coil body mounted on the surface of the predetermined printed wiring board from the back side of the printed wiring board. Since it is positioned, the inductance value of the coil can be increased. Also, the transformer core is simply inserted into the core through hole from the back side of the printed wiring board, abuts against the back side of the printed wiring board, and is assembled to the coil body. Therefore, the transformer core can be easily attached to the printed wiring board without using a bracket or the like. It is possible to reduce the size and cost of the contactless power supply device.
【０００８】請求項２では、前記印刷配線基板の表面に
実装されるコイル本体は、平面コイルからなるので、受
電コイルのコイル本体と給電コイルのコイル本体とを近
接して配置することができ、受電コイルと給電コイルと
の磁気結合を密とすることが可能となり、負荷に供給さ
れる直流電力の電圧が、磁気結合部のギャップの変化に
よる影響を受け難くなる。In the present invention, since the coil body mounted on the surface of the printed wiring board is a flat coil, the coil body of the power receiving coil and the coil body of the power feeding coil can be arranged close to each other. The magnetic coupling between the power receiving coil and the power feeding coil can be made tight, and the voltage of the DC power supplied to the load is less likely to be affected by the change in the gap of the magnetic coupling portion.
【０００９】請求項３では、前記給電コイルは、直流電
力を交流電力に変換して上記給電コイルを駆動するイン
バータ回路部が形成された給電印刷配線基板上に設けら
れ、前記受電コイルは、受電コイルが受電した交流電力
を直流電力に変換する整流回路部が形成された受電印刷
配線基板上に設けられる非接触給電装置が提供される。According to another aspect of the present invention, the power feeding coil is provided on a power feeding printed wiring board on which an inverter circuit unit for converting DC power into AC power and driving the power feeding coil is formed. Provided is a contactless power supply device provided on a power receiving printed wiring board on which a rectifying circuit unit for converting AC power received by a coil into DC power is formed.
【００１０】したがって、給電側の給電コイルおよび受
電側の受電コイル共に、コイルのインダクタンス値を大
きくすることができ、上記両コイルのトランスコアは、
ブラケット等を使用せず接着等によって印刷配線基板に
簡易に取付けることができると共に、非接触給電装置の
小型化・ローコスト化が図れ、コイル本体に平面コイル
を使用すれば、受電コイルと給電コイルとの磁気結合を
密とすることができ、負荷に供給される直流電力の電圧
が磁気結合部のギャップの変化による影響を受け難くな
る。Therefore, the inductance value of the coil can be increased in both the power feeding coil on the power feeding side and the power receiving coil on the power receiving side.
It can be easily attached to the printed wiring board by adhesion without using brackets, etc., and the contactless power supply device can be made compact and low cost. If a flat coil is used for the coil body, it can be used as a power receiving coil and a power feeding coil. The magnetic coupling can be made tighter, and the voltage of the DC power supplied to the load is less likely to be affected by the change in the gap of the magnetic coupling section.
【００１１】請求項４では、前記給電印刷配線基板およ
び前記受電印刷配線基板の少なくとも一方はケースに収
納され、このケースは、給電コイルと受電コイルの磁気
結合部側の側面が、この磁気結合部を除いて磁気シール
ド部材で形成されているので、磁気結合部以外に漏洩す
る磁束が遮蔽される。したがって、非接触給電装置の漏
洩磁束が他の電子機器等に与える影響を軽減できる。According to a fourth aspect of the present invention, at least one of the power supply printed wiring board and the power reception printed wiring board is housed in a case, and in this case, a side surface of the power supply coil and the power receiving coil on the side of the magnetic coupling portion has the magnetic coupling portion. Since it is formed of a magnetic shield member except for, the magnetic flux leaking to other than the magnetic coupling portion is shielded. Therefore, it is possible to reduce the influence of the leakage magnetic flux of the contactless power supply device on other electronic devices and the like.
【００１２】請求項５では、前記ケースに収納されたト
ランスコアは、この前記ケースとこの前記ケースに取り
付けられた印刷配線基板とで挟持されるので、トランス
コアと印刷配線基板との接着を不必要に、あるいは、両
面粘着テープのような極めて簡易な接着または粘着とす
ることができ、非接触給電装置のコスト低減を可能にす
る。In the present invention, since the transformer core housed in the case is sandwiched between the case and the printed wiring board attached to the case, the adhesion between the transformer core and the printed wiring board is prevented. Necessary or extremely simple adhesion or adhesion such as double-sided adhesive tape can be performed, and the cost of the non-contact power supply device can be reduced.
【００１３】請求項６では、前記トランスコアと前記ケ
ースとの間に、さらに弾性部材（たとえばゴムシート）
が挟持されるので、トランスコアと印刷配線基板との
間、及びトランスコアとケースとの間の寸法誤差による
遊びを解消して、トランスコア、印刷配線基板およびケ
ース相互の組み付けを確実にする。さらに、熱伝導率に
高い弾性部材を用いれば、給電コイルおよび／または受
電コイルが発生する熱を効率よくケース外に放熱でき、
給電コイルおよび／または受電コイルのトランスコアの
温度上昇が軽減される。そうすると印刷配線基板の温度
上昇も軽減される。In the sixth aspect, an elastic member (for example, a rubber sheet) is further provided between the transformer core and the case.
Since the gaps are sandwiched between the transformer core and the printed wiring board, play caused by dimensional errors between the transformer core and the printed wiring board and between the transformer core and the case is eliminated, and the transformer core, the printed wiring board, and the case are securely assembled. Furthermore, if an elastic member having high thermal conductivity is used, the heat generated by the power feeding coil and / or the power receiving coil can be efficiently radiated to the outside of the case,
The temperature rise of the transformer core of the power feeding coil and / or the power receiving coil is reduced. Then, the temperature rise of the printed wiring board is reduced.
【００１４】請求項７では、前記ケースが前記印刷配線
基板と共にトランスコアを挟持するケースの外部には放
熱部（たとえば放熱フィン）が形成されているので、給
電コイルおよび／または受電コイルが発生する熱をさら
に効率よくケース外に放熱できる。また、トランスコア
とケースとの間に、熱伝導率の高い弾性部材（たとえば
熱伝導性と弾性を有する放熱シート）を挟持すれば、放
熱効果に加え、トランスコアとケースとの間の寸法誤差
による遊びを解消して、トランスコア、印刷配線基板お
よびケース相互の組み付けを確実にする。In the present invention, since a heat radiating portion (for example, a heat radiating fin) is formed outside the case which holds the transformer core together with the printed wiring board, the power feeding coil and / or the power receiving coil is generated. The heat can be dissipated to the outside of the case more efficiently. Further, if an elastic member having a high thermal conductivity (for example, a heat dissipation sheet having heat conductivity and elasticity) is sandwiched between the transformer core and the case, in addition to the heat dissipation effect, a dimensional error between the transformer core and the case The play due to is eliminated and the transformer core, the printed wiring board, and the case are assembled together securely.
【００１５】請求項８では、前記印刷配線基板の表面に
実装されるコイル本体は、そのリード端末を前記印刷配
線基板の表面に実装された導線支持部に挟持されて固定
された後、その先端を端末クリップのリード端末係止部
に係止して前記印刷配線基板に穿たれたスルーホールに
挿通させて電気的接続がなされる非接触給電装置が提供
される。According to another aspect of the present invention, the coil body mounted on the surface of the printed wiring board has its lead end clamped and fixed to the lead wire supporting portion mounted on the surface of the printed wiring board, and then the tip thereof. There is provided a non-contact power feeding device in which a lead terminal engaging portion of a terminal clip is inserted into a through hole formed in the printed wiring board to be electrically connected.
【００１６】このように構成された非接触給電装置であ
れば、コイル本体のリード端末を導線支持部に挟持し固
定した後に、その先端を端末クリップのリード端末係止
部に係止して前記印刷配線基板に穿たれたスルーホール
に挿通させることによって、コイル本体のリード端末の
先端とスルーホールとを極めて簡易に電気的に接続する
こと、たとえば半田フロー等で接続することができる。In the non-contact power feeding device having the above-mentioned structure, the lead terminal of the coil body is clamped and fixed to the lead wire supporting portion, and then the tip thereof is locked to the lead terminal locking portion of the terminal clip. By inserting the lead terminal of the coil body into the through hole formed in the printed wiring board, the tip of the lead terminal and the through hole can be electrically connected very easily, for example, by a solder flow.
【００１７】請求項９では、前記導線支持部は、前記コ
イル本体のリード端末を案内する開口部を有する案内部
と、前記開口部に相対して配置された固定部とを備えて
いるので、リード端末を案内部の開口部から装着し、さ
らに固定部にリード端末を装着することで、極めて簡易
にリード端末を印刷配線基板に対して固定できる。一
方、端末クリップでは、略長方形状のクリップ本体部の
先端に前記導線係止部が設けられ、さらに、上記クリッ
プ本体部の他端には前記スルーホールに係止する本体係
止部が設けられ、この本体係止部と共に印刷配線基板を
挟持するために、前記クリップ本体部から前記本体係止
部に向かって延出して弾性を有する抜け止め部が設けら
れている。According to a ninth aspect of the present invention, the conducting wire support portion includes a guide portion having an opening portion for guiding the lead terminal of the coil body, and a fixing portion arranged to face the opening portion. By mounting the lead terminal from the opening of the guide portion and further mounting the lead terminal on the fixing portion, the lead terminal can be fixed to the printed wiring board very easily. On the other hand, in the terminal clip, the lead wire locking portion is provided at the tip of a substantially rectangular clip body portion, and further, the body locking portion that is locked in the through hole is provided at the other end of the clip body portion. In order to sandwich the printed wiring board together with the main body locking portion, an elastic retaining portion is provided which extends from the clip main body portion toward the main body locking portion.
【００１８】したがって、リード端末を端末クリップの
導線係止部に容易に係止することができ、且つスルーホ
ールから端末クリップが抜けることを防止できるので、
たとえば、半田フロー等によって、リード端末の先端を
スルーホールに容易且つ確実に接続することができる。Therefore, the lead terminal can be easily locked to the conductive wire locking portion of the terminal clip, and the terminal clip can be prevented from coming off from the through hole.
For example, the tip of the lead terminal can be easily and surely connected to the through hole by a solder flow or the like.
【００１９】[0019]
【発明の実施の形態】以下、図面を参照して、本発明の
実施形態に係る非接触給電装置を説明する。図１は本発
明に係る非接触給電装置１１の概略構成を示す図であ
る。非接触給電装置１１は、給電部１２と受電部１３と
を備えており、給電部１２はインバータ回路部１４と給
電コイル１５を備え、受電部１３は整流回路部１６と受
電コイル１７を備えている。BEST MODE FOR CARRYING OUT THE INVENTION A contactless power supply device according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a contactless power supply device 11 according to the present invention. The contactless power feeding device 11 includes a power feeding unit 12 and a power receiving unit 13, the power feeding unit 12 includes an inverter circuit unit 14 and a power feeding coil 15, and the power receiving unit 13 includes a rectifying circuit unit 16 and a power receiving coil 17. There is.
【００２０】インバータ回路部１４は、たとえば、ＭＯ
Ｓ型電界効果トランジスタ等で構成されるプッシュ・プ
ル自励式発振回路によって、給電部１２に入力された直
流電力を交流電力に変換して給電コイル１５を駆動す
る。なお、直流電力はチョークコイル１４ａを介してプ
ッシュ・プル自励式発振回路に供給される。そして、受
電コイル１７は給電コイル１５の磁気結合によって誘起
起電力を生じ、この誘起起電力は、たとえば整流ダイオ
ード等で構成される整流回路部１６によって直流電力に
変換され、この直流電力は所定の負荷に供給される。The inverter circuit section 14 is, for example, an MO.
The push-pull self-excited oscillation circuit including an S-type field effect transistor converts DC power input to the power feeding unit 12 into AC power and drives the power feeding coil 15. The DC power is supplied to the push-pull self-excited oscillation circuit via the choke coil 14a. Then, the power receiving coil 17 generates an induced electromotive force due to the magnetic coupling of the power feeding coil 15, and the induced electromotive force is converted into DC power by the rectifying circuit unit 16 including, for example, a rectifying diode, and the DC power is predetermined. Supplied to the load.
【００２１】図２（ａ）は第一の実施形態に係る非接触
給電装置１１の給電部１２側の要部概略構成図であり、
図２（ｂ）は給電部１２および受電部１３の要部を示す
部分断面図である。図２（ａ）に示すように、給電部１
２の給電印刷配線基板１８は、給電コイル１５の給電ト
ランスコア（ポットコア）１９の中心部コア１９ａが挿
通される円形の中心部コア貫通孔１８ａと、給電トラン
スコア１９の外部（ポットコアの外周部）コア１９ｂ、
１９ｃが挿通される略円弧状の外部コア貫通孔１８ｂ、
１８ｃとを同軸に有している。FIG. 2 (a) is a schematic view of the main part of the contactless power supply device 11 according to the first embodiment on the power supply part 12 side.
FIG. 2B is a partial cross-sectional view showing the main parts of the power feeding unit 12 and the power receiving unit 13. As shown in FIG. 2A, the power feeding unit 1
The power feeding printed wiring board 18 of No. 2 has a circular central core through hole 18a into which the central core 19a of the power feeding transformer core (pot core) 19 of the power feeding coil 15 is inserted, and the outside of the power feeding transformer core 19 (the outer peripheral portion of the pot core). ) Core 19b,
A substantially arcuate outer core through hole 18b into which 19c is inserted,
18c and coaxially.
【００２２】中心部コア貫通孔１８ａの外周で、外部コ
ア貫通孔１８ｂ、１８ｃの内側になる給電印刷配線基板
１８の表面には、給電コイル１５のコイル本体である円
環状の平面コイル１５ａが中心部コア貫通孔１８ａと同
軸に実装される。実装は、たとえば、接着剤または両面
粘着テープ等の粘着体によって平面コイル１５ａと給電
印刷配線基板１８を接着または粘着することで行われ
る。あるいは、平面コイル１５ａは、特開２００１−１
２６９４２号公報に開示されるように、給電印刷配線基
板１８の表面に接着層を設けて、線状の導体を布線装置
によって給電印刷配線基板１８上に布線したものであっ
てもよい。On the outer periphery of the central core through-hole 18a, inside the outer core through-holes 18b and 18c, on the surface of the power-feeding printed wiring board 18, there is centered an annular planar coil 15a which is the coil body of the power-feeding coil 15. It is mounted coaxially with the partial core through hole 18a. The mounting is performed, for example, by adhering or adhering the planar coil 15a and the power supply printed wiring board 18 with an adhesive or an adhesive body such as a double-sided adhesive tape. Alternatively, the plane coil 15a is disclosed in JP 2001-1.
As disclosed in Japanese Patent No. 26942, an adhesive layer may be provided on the surface of the power feeding printed wiring board 18 and a linear conductor may be wired on the power feeding printed wiring board 18 by a wiring device.
【００２３】図３（ａ）（ｂ）に示す給電トランスコア
１９は、円柱体からなる中心部コア１９ａと、この円柱
体の外周に同軸に配置されて軸方向に切り欠いた開口部
を有する上記円柱体と同長の円筒体の外部コア１９ｂ、
１９ｃと、これら外部コア１９ｂ、１９ｃと中心部コア
１９ａとの一端を閉塞する底部コア１９ｄからなるポッ
ト型コアである。また、中心部コア１９ａの外周面と外
部コア１９ｂ、１９ｃの内周面との間の空間部はコイル
本体実装部１９ｅをなしている。そして、上記開口部
は、第一開口部１９ｆと、この第一開口部１９ｆと中心
対称位置に設けられた第二開口部１９ｇとの二つの開口
部からなる。The power supply transformer core 19 shown in FIGS. 3A and 3B has a central core 19a made of a cylindrical body and an opening portion coaxially arranged on the outer circumference of the cylindrical body and cut out in the axial direction. A cylindrical outer core 19b having the same length as the cylindrical body,
19 c and a bottom core 19 d that closes one ends of the outer cores 19 b and 19 c and the central core 19 a. The space between the outer peripheral surface of the central core 19a and the inner peripheral surfaces of the outer cores 19b and 19c forms a coil body mounting portion 19e. Then, the opening is composed of two openings, a first opening 19f and a second opening 19g provided at a position symmetrical with respect to the first opening 19f.
【００２４】たとえば、給電トランスコア１９の外径は
３６ｍｍ、高さ７ｍｍであり、中心部コア１９ａの直径
は１５．４ｍｍ、中心部コア１９ａの外周面と外部コア
１９ｂ、１９ｃの内周面との間隔は８ｍｍである。そし
て、中心部コア１９ａと外部コア１９ｂ、１９ｃとを連
接する底部コア１９ｄの厚さは３ｍｍである。このよう
な給電トランスコア１９のコイル本体実装部１９ｅの深
さは４ｍｍであり幅は８ｍｍとなる。そして、第一開口
部１９ｆは３ｍｍの幅をもって開口し、給電トランスコ
ア１９の中心に対して３０度の角度で開口した第二開口
部１９ｇが設けられている。For example, the feeding transformer core 19 has an outer diameter of 36 mm and a height of 7 mm, the central core 19a has a diameter of 15.4 mm, the outer peripheral surface of the central core 19a and the inner peripheral surfaces of the outer cores 19b and 19c. Is 8 mm. The thickness of the bottom core 19d connecting the central core 19a and the external cores 19b and 19c is 3 mm. The coil body mounting portion 19e of the power feeding transformer core 19 has a depth of 4 mm and a width of 8 mm. The first opening 19f has a width of 3 mm, and the second opening 19g is provided at an angle of 30 degrees with respect to the center of the feeding transformer core 19.
【００２５】上記形状を有する給電トランスコア１９
は、図２（ａ）および（ｂ）に示すように、中心部コア
１９ａと外部コア１９ｂ、１９ｃとを前記中心部コア貫
通孔１８ａと外部コア貫通孔１８ｂ、１８ｃに挿通させ
て、その底部コア１９ｄが給電印刷配線基板１８の裏面
側に当接するように装着される。このとき、底部コア１
９ｄと給電印刷配線基板１８の裏面とは、接着剤または
両面粘着テープで接着または粘着される。そうすると、
前記平面コイル１５ａは給電トランスコア１９のコイル
本体実装部１９ｅの内部に実装される（図２（ｂ））。The feeding transformer core 19 having the above shape
2A and 2B, the central core 19a and the external cores 19b and 19c are inserted into the central core through-hole 18a and the external core through-holes 18b and 18c, and the bottom thereof is The core 19d is mounted so as to come into contact with the back surface side of the power supply printed wiring board 18. At this time, the bottom core 1
9d and the back surface of the power supply printed wiring board 18 are adhered or adhered by an adhesive or a double-sided adhesive tape. Then,
The plane coil 15a is mounted inside the coil body mounting portion 19e of the power feeding transformer core 19 (FIG. 2B).
【００２６】すなわち、裏面に接着等された給電トラン
スコア１９は、給電印刷配線基板１８を平面コイル１５
ａと共に挟むようにして組み付けられる。したがって、
ブラケット等を使用せず給電トランスコア１９を給電印
刷配線基板１８に簡易に取付けることができると共に、
給電部１２の小型化が図れ、給電コイル１５のインダク
タンス値を高くすることができる。That is, the power feeding transformer core 19 adhered to the back surface of the power feeding printed wiring board 18 has the planar coil 15 attached thereto.
It is assembled by sandwiching it with a. Therefore,
The feeding transformer core 19 can be easily attached to the feeding printed wiring board 18 without using a bracket or the like, and
The power feeding unit 12 can be downsized, and the inductance value of the power feeding coil 15 can be increased.
【００２７】また、給電印刷配線基板１８はインバータ
回路部１４を有しており、インバータ回路部１４を形成
するＭＯＳ型電界効果トランジスタ等電気部品は給電印
刷配線基板１８の表面および裏面に実装されている。そ
して、平面コイル１５ａのリード端末１５ｂ、１５ｃ、
１５ｄは、給電トランスコア１９の第二開口部１９ｇか
ら外部に引き出され、給電印刷配線基板１８の表面に設
けられたランド部１４ｂ、１４ｃ、１４ｄにそれぞれ半
田付け等によって接続される。The power supply printed wiring board 18 has an inverter circuit section 14, and electrical components such as MOS field effect transistors forming the inverter circuit section 14 are mounted on the front and back surfaces of the power supply printed wiring board 18. There is. Then, the lead terminals 15b, 15c of the planar coil 15a,
15d is drawn out from the second opening 19g of the power feeding transformer core 19 and is connected to lands 14b, 14c, 14d provided on the surface of the power feeding printed wiring board 18 by soldering or the like.
【００２８】給電印刷配線基板１８は、図２（ｂ）に示
すように給電部ケース２０に収納される。給電部ケース
２０は、給電印刷配線基板１８の裏面側に位置して、長
方形の二面が段差をもってなる裏面部２０ａと、給電コ
イルと受電コイルが磁気結合する側（磁気結合部側）に
位置する長方形の表面部２０ｂと、これら裏面部２０ａ
と表面部２０ｂとを連結する四つの側面からなる側面部
２０ｃとを有している。そして、裏面部２０ａは樹脂等
で構成されており、表面部２０ｂと四つの側面からなる
側面部２０ｃとは一体化されて磁気シールド効果を有す
るアルミニウム等で構成されるが、表面部２０ｂが給電
トランスコア１９と接する部分には、給電トランスコア
１９の直径より、僅かに大きい直径を有する円形状の孔
（たとえば、給電トランスコア１９の直径が３６ｍｍで
あるときには３８ｍｍの孔）が設けられて、給電コイル
と受電コイルが磁気結合するようになっている。The power supply printed wiring board 18 is housed in the power supply case 20 as shown in FIG. The power feeding unit case 20 is located on the back surface side of the power feeding printed wiring board 18, and is located on the back surface portion 20a in which two rectangular surfaces have a step, and the side where the power feeding coil and the power receiving coil are magnetically coupled (magnetic coupling portion side). The rectangular front surface portion 20b and the back surface portion 20a
And a side surface portion 20c having four side surfaces that connect the surface portion 20b with the surface portion 20b. The back surface portion 20a is made of resin or the like, and the front surface portion 20b and the side surface portion 20c composed of four side surfaces are integrally made of aluminum or the like having a magnetic shield effect. A circular hole having a diameter slightly larger than the diameter of the power feeding transformer core 19 (for example, a hole of 38 mm when the diameter of the power feeding transformer core 19 is 36 mm) is provided in a portion in contact with the transformer core 19. The power feeding coil and the power receiving coil are magnetically coupled.
【００２９】また、裏面部２０ａとトランスコア１９が
位置する給電印刷配線基板１８の一端部側のコーナとの
間には二本のスペーサ（バーリング突起）２０ｄが設け
られ、裏面部２０ａと給電印刷配線基板１８の他端部側
のコーナとの間には二本のスペーサ２０ｅが設けられて
いる。これらスペーサ２０ｄ、２０ｅは、給電部ケース
２０の裏面部２０ａと一体に形成され、その端部をもっ
て、給電印刷配線基板１８の裏面と螺子止めされる。Further, two spacers (burring protrusions) 20d are provided between the back surface portion 20a and the corner on one end side of the power feeding printed wiring board 18 where the transformer core 19 is located, and the back surface portion 20a and the power feeding printing are provided. Two spacers 20 e are provided between the wiring board 18 and the corner on the other end side. These spacers 20d and 20e are formed integrally with the back surface portion 20a of the power feeding portion case 20, and the ends thereof are screwed to the back surface of the power feeding printed wiring board 18.
【００３０】このようにして、給電印刷配線基板１８が
スペーサ２０ｄ、２０ｅに連結されると、給電印刷配線
基板１８の裏面と給電部ケース２０の裏面部２０ａとの
間に、給電トランスコア１９の底部コア１９ｄが挟持さ
れる。したがって、給電トランスコア１９は、ブラケッ
ト等を使用することなく、給電印刷配線基板１８および
平面コイル１５ａと確実に組み付けられる。この組み付
けの後、一体化された給電部ケース２０の表面部２０ｂ
と側面部２０ｃとを裏面部２０ａに組み付けると、給電
印刷配線基板１８が給電部ケース２０に収納される。When the power supply printed wiring board 18 is connected to the spacers 20d and 20e in this way, the power supply transformer core 19 is provided between the back surface of the power supply printed wiring board 18 and the back surface portion 20a of the power supply case 20. The bottom core 19d is sandwiched. Therefore, the power feeding transformer core 19 can be reliably assembled to the power feeding printed wiring board 18 and the planar coil 15a without using a bracket or the like. After this assembling, the integrated surface portion 20b of the power supply case 20
When the side surface portion 20c and the side surface portion 20c are assembled to the back surface portion 20a, the power feeding printed wiring board 18 is housed in the power feeding portion case 20.
【００３１】一方、受電部１３側も給電部１２と同様に
構成されて、給電部ケース２０と受電部ケース２１と
は、給電コイル１５と受電コイル１７とが磁気結合する
ように当接または略当接して配置される。したがって、
給電コイル１５の漏洩磁束は、給電部ケース２０の表面
部２０ｂや側面部２０ｃによって遮蔽され、給電部１２
が放射する電磁放射ノイズが軽減される。On the other hand, the power receiving portion 13 side is also configured similarly to the power feeding portion 12, and the power feeding portion case 20 and the power receiving portion case 21 are in contact with or substantially in contact with each other so that the power feeding coil 15 and the power receiving coil 17 are magnetically coupled. Abutted and arranged. Therefore,
The leakage magnetic flux of the power feeding coil 15 is shielded by the front surface portion 20b and the side surface portion 20c of the power feeding portion case 20,
The electromagnetic radiation noise radiated by is reduced.
【００３２】なお、給電コイル１５は給電部ケース２０
の表面部２０ｂ側に最も多くの磁束を発生させて給電コ
イル１７と磁気結合するので、トランスコア１９の漏洩
磁束は表面部２０ｂ側で最も多い。したがって、表面部
２０ｂ側を磁気シールドすることが最も効果的であり、
側面部２０ｃは樹脂等で構成してもよい。こうして給電
コイルと受電コイルは磁気結合するが、この磁気結合は
給電コイルと受電コイルとのギャップの距離によって変
動する。また、この磁気結合変動は、給電コイル１５お
よび／または受電コイル１７が有する平面コイルの形状
にも依存する。こうした磁気結合の変動は、受電コイル
１７の誘起起電力の変動を生じ、受電部１３が負荷に供
給する直流電力の電圧変動を生じる。The power feeding coil 15 is used in the power feeding case 20.
Since the most magnetic flux is generated on the surface portion 20b side and magnetically coupled to the feeding coil 17, the leakage magnetic flux of the transformer core 19 is the most on the surface portion 20b side. Therefore, it is most effective to magnetically shield the surface portion 20b side,
The side surface portion 20c may be made of resin or the like. In this way, the power feeding coil and the power receiving coil are magnetically coupled, but this magnetic coupling varies depending on the distance of the gap between the power feeding coil and the power receiving coil. Further, this magnetic coupling fluctuation also depends on the shape of the plane coil included in the power feeding coil 15 and / or the power receiving coil 17. Such a change in magnetic coupling causes a change in the induced electromotive force of the power receiving coil 17, and thus a voltage change in the DC power supplied to the load by the power receiving unit 13.
【００３３】図４は、平面コイル１５ａが印刷配線基板
１８に実装されトランスコア１９に組み付けられた様子
を示し、平面コイル１５ａの放射方向の寸法はｒであ
り、軸方向の寸法はｈである。そして、図５は、給電コ
イル１５と受電コイル１７とのギャップの変動に対する
直流出力電圧（負荷電圧）の変化を実験によって測定し
たものである。図５の破線は平面コイル１５ａの放射方
向の寸法をｒ１とした場合であり、一方、実線は放射方
向の寸法をｒ２とした場合である。ここで、ｒ１／ｈ１
＝０．４であり、ｒ２／ｈ２＝７である（ｈ１≠ｈ
２）。この測定は、分離トランスの給電トランスコアと
受電トランスコアのギャップを１ｍｍとした場合におい
て、受電部１３に接続された負荷に供給される直流出力
電圧を１とし、上記ギャップを５ｍｍまで増加させたと
きの、上記直流出力電圧変化率を測定したものである。
上記ギャップが５ｍｍのとき、ｒ２／ｈ２＝７の平面コ
イルでは、上記直流出力電圧変化率が０．８であり、ｒ
１／ｈ１＝０．４の平面コイルの上記直流出力電圧変化
率０．７に比べて、ギャップの変化に対する直流出力電
圧変化が約２／３に軽減されていることがわかる。FIG. 4 shows a state in which the plane coil 15a is mounted on the printed wiring board 18 and assembled to the transformer core 19. The plane coil 15a has a radial dimension of r and an axial dimension of h. . Then, FIG. 5 shows an experimental measurement of the change in the DC output voltage (load voltage) with respect to the change in the gap between the power feeding coil 15 and the power receiving coil 17. The broken line in FIG. 5 is the case where the radial dimension of the planar coil 15a is r1, while the solid line is the case where the radial dimension is r2. Where r1 / h1
= 0.4 and r2 / h2 = 7 (h1 ≠ h
2). In this measurement, when the gap between the power feeding transformer core and the power receiving transformer core of the separation transformer was 1 mm, the DC output voltage supplied to the load connected to the power receiving unit 13 was 1, and the gap was increased to 5 mm. At this time, the rate of change in the DC output voltage was measured.
When the gap is 5 mm, in the planar coil with r2 / h2 = 7, the DC output voltage change rate is 0.8, and r
It can be seen that the change in the DC output voltage with respect to the change in the gap is reduced to about 2/3 as compared with the above-described DC output voltage change rate of 0.7 for the planar coil of 1 / h1 = 0.4.
【００３４】以上の実験結果から、平面コイル１５ａに
おいては、（放射方向の寸法）／（軸方向の寸法）が大
きいほど、上記ギャップの影響を受け難いことがわか
る。したがって、図４において、平面コイル１５ａの上
面と中心部コア１９ａの端面とを同一平面上に配置する
ように、コイル本体実装部１９ｅの深さ、給電印刷配線
基板１８の厚さおよび平面コイル１５ａの軸方向の寸法
ｈを定め、平面コイル１５ａの放射方向の寸法ｒをコイ
ル本体実装部１９ｅの幅とすると、上記ギャップの影響
を最も受け難くすることができる。同様にして、受電コ
イル本体１７ａもギャップの影響を最も受け難くするこ
とができる。From the above experimental results, it can be seen that in the planar coil 15a, the larger the (radial dimension) / (axial dimension), the less likely it is to be affected by the gap. Therefore, in FIG. 4, the depth of the coil body mounting portion 19e, the thickness of the feeding printed wiring board 18, and the plane coil 15a are arranged so that the upper surface of the plane coil 15a and the end surface of the central core 19a are arranged on the same plane. If the dimension h in the axial direction is determined and the dimension r in the radial direction of the planar coil 15a is set to the width of the coil body mounting portion 19e, the influence of the gap can be minimized. Similarly, the power receiving coil body 17a can be made to be the least affected by the gap.
【００３５】かくして、非接触給電装置１１では、線積
率を高めた平面コイルとトランスコアによって給電コイ
ルおよび／または受電コイルのインダクタンス値を高く
することができ、給電コイルおよび／または給電コイル
のトランスコアは、ブラケット等を使用することなく印
刷配線基板およびコイル本体と確実、且つ簡易に組み付
けられ、非接触給電装置の小型化・ローコスト化を図る
ことができ、負荷に供給される直流電力の電圧が磁気結
合部のギャップの変化による影響を受け難くなる。ま
た、給電コイルおよび／または受電コイルのコイル本体
の導線引出部の端末部を簡易に印刷配線基板に接続する
ことができ、さらに、給電部および／または受電部の磁
気結合部側のケースが給電コイルおよび／または受電コ
イルの漏洩磁束が遮蔽され、非接触給電装置が放射する
電磁放射ノイズが軽減される。Thus, in the non-contact power feeding device 11, the inductance value of the power feeding coil and / or the power receiving coil can be increased by the flat coil and the transformer core having an increased linear area ratio, and the transformer of the power feeding coil and / or the power feeding coil can be increased. The core can be securely and easily assembled to the printed wiring board and the coil body without using a bracket or the like, which can reduce the size and cost of the contactless power supply device, and reduce the voltage of the DC power supplied to the load. Is less likely to be affected by changes in the magnetic coupling gap. In addition, the terminal portion of the conductor lead-out portion of the coil body of the power feeding coil and / or the power receiving coil can be easily connected to the printed wiring board, and further, the case on the magnetic coupling portion side of the power feeding portion and / or the power receiving portion can feed power. The leakage magnetic flux of the coil and / or the power receiving coil is shielded, and electromagnetic radiation noise radiated by the contactless power feeding device is reduced.
【００３６】次に本発明に係る非接触給電装置の第二の
実施形態について説明する。図６は、本発明に係る非接
触給電装置の第二の実施形態に係る給電部２２を示す。
なお、第一の実施形態と同様の機能を有する構成要素は
同一の符号を付してその説明を省略する。給電部２２
は、給電部ケース２０にインバータ回路部１４と給電コ
イル１５を備えた給電印刷配線基板１８を収納してな
る。給電印刷配線基板１８は、上記給電部ケース２０の
裏面部２０ａに設けられたスペーサ２０ｄ、２０ｅの端
部に螺子止めされる。この螺子止めに際し、給電印刷配
線基板１８と上記裏面部２０ａとの間には、底部コア１
９と弾性部材（たとえば、ゴムシート）３２とが挟持さ
れる。そうすると、給電トランスコア１９と給電部ケー
ス２０の裏面部２０ａとの間の弾性部材３２の弾性作用
によって、トランスコアと印刷配線基板との間、および
トランスコアとケースとの間の寸法誤差による遊びが解
消され、トランスコア、印刷配線基板およびケース相互
の組み付けを確実にできる。Next, a second embodiment of the non-contact power feeding device according to the present invention will be described. FIG. 6 shows a power feeding unit 22 according to a second embodiment of the contactless power feeding device according to the present invention.
The constituent elements having the same functions as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. Power supply unit 22
In the power feeding section case 20, the power feeding printed wiring board 18 including the inverter circuit section 14 and the power feeding coil 15 is housed. The power supply printed wiring board 18 is screwed to the ends of the spacers 20d and 20e provided on the back surface 20a of the power supply case 20. At the time of this screwing, the bottom core 1 is provided between the power supply printed wiring board 18 and the back surface portion 20a.
9 and the elastic member (for example, a rubber sheet) 32 are sandwiched. Then, due to the elastic action of the elastic member 32 between the power feeding transformer core 19 and the back surface portion 20a of the power feeding unit case 20, play due to a dimensional error between the transformer core and the printed wiring board and between the transformer core and the case is caused. Is eliminated, and the transformer core, the printed wiring board, and the case can be securely assembled with each other.
【００３７】なお、給電コイル１５の温度が銅損や鉄損
によって上昇するので、この温度上昇を軽減するため、
上記弾性部材２３は熱伝導性の弾性部材であることが好
ましい。そうすると、給電コイル１５で生じた熱エネル
ギーは弾性部材２３を介して給電部ケース２０に放熱さ
れ、給電コイル１５や給電部２２の温度上昇を軽減でき
るので、給電コイル１５および給電部２４の小型化が図
れる。また、受電部も給電部２２と同様に構成され、且
つ受電トランスコアと受電部ケースとの間に弾性部材２
３を介在させることが好ましい。Since the temperature of the feeding coil 15 rises due to copper loss and iron loss, in order to reduce this temperature rise,
The elastic member 23 is preferably a heat conductive elastic member. Then, the heat energy generated in the power feeding coil 15 is radiated to the power feeding portion case 20 via the elastic member 23, and the temperature rise of the power feeding coil 15 and the power feeding portion 22 can be reduced, so that the power feeding coil 15 and the power feeding portion 24 can be downsized. Can be achieved. The power receiving unit is also configured similarly to the power feeding unit 22, and the elastic member 2 is provided between the power receiving transformer core and the power receiving unit case.
It is preferable to interpose 3.
【００３８】次に本発明に係る非接触給電装置の第三の
実施形態について説明する。図７は、本発明に係る非接
触給電装置の第三の実施形態に係る給電部２４を示す。
なお、第一および第二の実施形態と同様の機能を有する
構成要素は同一の符号を付してその説明を省略する。給
電部２４では、第二の実施形態に係る給電部２２に加え
て、放熱フィン２５が給電部ケース２０の裏面部２０ａ
の外側に取り付けられている。したがって、熱伝導性の
弾性部材２３を使用すれば、給電コイル１５で生じた熱
エネルギーは、弾性部材２３を介して給電部ケース２０
に伝達されて放熱フィン２５によって効率よく周囲の外
気に放出され、給電コイル１５や給電部２４の温度上昇
を軽減でき、さらなる給電コイル１５および給電部２４
の小型化が可能となる。なお、受電部も給電部２４と同
様に構成されることが好ましい。Next, a third embodiment of the contactless power supply system according to the present invention will be described. FIG. 7: shows the electric power feeding part 24 which concerns on 3rd embodiment of the non-contact electric power feeding device which concerns on this invention.
The constituent elements having the same functions as those in the first and second embodiments are designated by the same reference numerals, and the description thereof will be omitted. In the power feeding unit 24, in addition to the power feeding unit 22 according to the second embodiment, the radiation fins 25 have the back surface portion 20 a of the power feeding unit case 20.
Is attached to the outside of. Therefore, if the heat conductive elastic member 23 is used, the heat energy generated in the power feeding coil 15 is transmitted through the elastic member 23 to the power feeding unit case 20.
Is efficiently transmitted to the ambient air by the heat radiation fins 25, the temperature rise of the power feeding coil 15 and the power feeding portion 24 can be reduced, and the power feeding coil 15 and the power feeding portion 24 are further increased.
Can be downsized. In addition, it is preferable that the power receiving unit is configured similarly to the power feeding unit 24.
【００３９】次に、給電印刷配線基板１８の表面に実装
される平面コイル１５ａのリード端末１５ｂ〜１５ｄを
挟持して固定する導線支持部２６と、リード端末の先端
を端末クリップのリード端末係止部に係止して印刷配線
基板のランド部に穿たれたスルーホールに挿通させる端
末クリップ２７について説明する。図８（ａ）に示すよ
うに、絶縁部材からなる導線支持部２６は略直方体形状
をなし、その一つの幅広側面（長方形）に、たとえば三
つのリード端末案内部２６ａが前記長方形の幅広側面の
短辺と平行して設けられている。リード端末案内部２６
ａはその底部から上記幅広側面に向かって開口してお
り、リード端末案内部２６ａの底部には、略円筒状空間
を形成するリード端末固定部２６ｂがリード端末案内部
２６ａと連接して形成されている。そして、リード端末
固定部２６ｂの内径はリード端末案内部２６ａの底部の
幅よりも大きい。Next, the lead wire support portion 26 for sandwiching and fixing the lead terminals 15b to 15d of the planar coil 15a mounted on the surface of the power feeding printed wiring board 18, and the tip of the lead terminal is fixed to the lead terminal of the terminal clip. The terminal clip 27 that is locked to the portion and inserted through the through hole formed in the land portion of the printed wiring board will be described. As shown in FIG. 8A, the conductive wire support portion 26 made of an insulating member has a substantially rectangular parallelepiped shape, and one of the wide side surfaces (rectangle) has, for example, three lead terminal guide portions 26a with the wide side surface of the rectangle. It is provided parallel to the short side. Lead terminal guide section 26
a is open from the bottom to the wide side surface, and a lead terminal fixing portion 26b forming a substantially cylindrical space is formed at the bottom of the lead terminal guide portion 26a so as to be connected to the lead terminal guide portion 26a. ing. The inner diameter of the lead terminal fixing portion 26b is larger than the width of the bottom portion of the lead terminal guide portion 26a.
【００４０】したがって、給電印刷配線基板１８の表面
に実装された平面コイル１５ａのリード端末１５ｂ〜１
５ｄをリード端末案内部２６ａの開口部に容易に挿通す
ることができ、さらにリード端末１５ｂ〜１５ｄをリー
ド端末固定部２６ｂに挿通することができ、リード端末
はリード端末固定部２６ｂから抜け難い状態で固定され
る。Therefore, the lead terminals 15b to 1 of the planar coil 15a mounted on the surface of the power supply printed wiring board 18 are provided.
5d can be easily inserted into the opening of the lead terminal guide portion 26a, and further the lead terminals 15b to 15d can be inserted into the lead terminal fixing portion 26b, so that the lead terminal is difficult to come off from the lead terminal fixing portion 26b. Fixed by.
【００４１】端末クリップ２７は図８（ｂ）に示すよう
に、略長方形状のクリップ本体部２７ａの先端に導線係
止部２７ｂが設けられ、さらに、上記クリップ本体部２
７ａの他端に設けられて給電印刷配線基板１８のランド
部１４ｂ〜ｄのスルーホールに係止する本体係止部２７
ｃと、クリップ本体部２７ａの側部から本体係止部２７
ｃに向かって延出して弾性を有する抜け止め部２７ｄを
二つ備えている。As shown in FIG. 8B, the terminal clip 27 is provided with a lead wire locking portion 27b at the tip of a substantially rectangular clip body portion 27a, and further, the clip body portion 2 described above.
7a, which is provided at the other end of the power supply printed wiring board 18, and which engages with the through holes of the land portions 14b to 14d of the power supply printed wiring board 18, a main body locking portion 27
c and the main body locking portion 27 from the side of the clip main body portion 27a.
Two retaining portions 27d having elasticity and extending toward c are provided.
【００４２】したがって、リード端末１５ｂ〜１５ｄを
端末クリップ２７の導線係止部２７ｂに容易に係止する
ことができる。そして、端末クリップ２７をその先端側
からスルーホールに挿通すると、弾性を有する抜け止め
部２７ｄは、スルーホールの径に則して収縮した後、印
刷配線基板１８を挿通し終えてその裏面で展開して、端
末クリップが印刷配線基板１８から抜けることを防止す
る。このとき、本体係止部２７ｃは印刷配線基板表面に
当接する。なお、図８（ｃ）は、リード端末１５ｂが端
末クリップ２７と共にランド部１４ｂのスルーホールに
挿通された状態を示す。Therefore, the lead terminals 15b to 15d can be easily locked to the lead wire locking portion 27b of the terminal clip 27. Then, when the terminal clip 27 is inserted into the through hole from the tip side thereof, the elastic retaining portion 27d contracts in accordance with the diameter of the through hole, then finishes inserting the printed wiring board 18, and expands on the back surface thereof. Thus, the terminal clip is prevented from coming off from the printed wiring board 18. At this time, the main body locking portion 27c contacts the surface of the printed wiring board. Note that FIG. 8C shows a state in which the lead terminal 15b is inserted into the through hole of the land portion 14b together with the terminal clip 27.
【００４３】ここで、図８（ｄ）は給電印刷配線基板１
８に実装された平面コイル１５ａとリード端末１５ｂを
支持した導線支持部２６とスルーホールに端末クリップ
２７と共に挿通されたリード端末１５ｂの様子を示す図
である。以上のように、導線支持部および端末クリップ
を使用することで、リード端末の先端を極めて容易にラ
ンド部のスルーホールに挿通でき、且つ先端がスルーホ
ールから抜けてしまうことを確実に防止できるので、た
とえば、半田フロー等によって、リード端末の先端をス
ルーホールに極めて簡易且つ確実に接続することができ
る。なお、上記リード端末の先端とスルーホールとの半
田付けの後に、給電トランスコアが給電印刷配線基板に
組み付けられる。Here, FIG. 8D shows the power supply printed wiring board 1.
FIG. 9 is a diagram showing a state of a lead wire support portion 26 that supports the planar coil 15a and the lead terminal 15b mounted on the No. 8 and the lead terminal 15b that is inserted into the through hole together with the terminal clip 27. As described above, by using the conductive wire support portion and the terminal clip, the tip of the lead terminal can be very easily inserted into the through hole of the land portion, and it is possible to reliably prevent the tip from coming off the through hole. For example, the tip of the lead terminal can be connected to the through hole very easily and surely by the solder flow or the like. After the soldering of the tip of the lead terminal and the through hole, the feeding transformer core is assembled to the feeding printed wiring board.
【００４４】受電部においても、同様に導線支持部と端
末クリップを使用して、コイル本体のリード端末の先端
を印刷配線基板に接続することができる。また、本発明
に係る非接触給電装置に使用されるトランスコアは、ポ
ット型コアに限定されるものでなく、図９（ａ）に示す
Ｅ型コア、図９（ｂ）に示すＰＱ型コア等の種々のコア
を使用することもできる。Similarly, in the power receiving portion, the leading end of the lead terminal of the coil body can be connected to the printed wiring board by using the conductive wire supporting portion and the terminal clip. Further, the transformer core used in the non-contact power supply device according to the present invention is not limited to the pot type core, but the E type core shown in FIG. 9A and the PQ type core shown in FIG. 9B. Various cores, such as, can also be used.
【００４５】なお、本発明に係る非接触給電装置は、上
記実施形態に限定されるものではなく、その趣旨を逸脱
しない範囲で種々変形して実施することができる。The contactless power supply device according to the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention.
【００４６】[0046]
【発明の効果】以上説明したように、本発明の非接触給
電装置によれば、トランスコアを使用し分離トランスの
コイルのインダクタンス値を大きくし、ブラケット等を
使用せずにトランスコアを簡易に印刷配線基板に取付け
ることができ、非接触給電装置の小型化・ローコスト化
が図れると共に、振動や組み付け誤差による受電コイル
の誘起電圧変化を軽減することができ、好ましくは、コ
イル本体の導線引出部の端末部を簡易に印刷配線基板に
接続することができる、という効果が得られる。さら
に、非接触給電装置を構成する空電装置の給電コイルと
受電部の受電コイルとが磁気結合する側を、この磁気結
合部を除いて磁気シールド部材で遮蔽すれば、磁気結合
部以外に漏洩する磁束が遮蔽され、非接触給電装置の漏
洩磁束が他の電子機器等に与える影響を軽減できる、と
いう効果が得られる。As described above, according to the non-contact power feeding device of the present invention, the transformer core is used to increase the inductance value of the coil of the separation transformer, and the transformer core is simplified without using a bracket or the like. Since it can be attached to a printed wiring board, the contactless power supply device can be downsized and the cost can be reduced, and the induced voltage change of the power receiving coil due to vibration or assembly error can be reduced. It is possible to obtain an effect that the terminal part of can be easily connected to the printed wiring board. Furthermore, if the magnetic coupling member except the magnetic coupling portion is used to shield the magnetic coupling side of the power feeding coil of the pneumatic device and the power receiving coil of the power receiving unit that constitute the contactless power feeding device, leakage will occur to other than the magnetic coupling unit. It is possible to obtain an effect that the generated magnetic flux is shielded and the influence of the leakage magnetic flux of the non-contact power supply device on other electronic devices can be reduced.
【図１】非接触給電装置の給電部と受電部の概略構成を
示す図である。FIG. 1 is a diagram showing a schematic configuration of a power feeding unit and a power receiving unit of a contactless power feeding device.
【図２】（ａ）は本発明に係る非接触給電装置の第一の
実施形態にかかる給電部側の要部概略構成を示す分解斜
視図であり（ｂ）は給電部および受電部の要部を示す部
分断面図である。FIG. 2A is an exploded perspective view showing a schematic configuration of a main part of a contactless power supply device according to a first embodiment of the present invention on a power supply part side, and FIG. 2B is a perspective view of a power supply part and a power reception part. It is a fragmentary sectional view showing a part.
【図３】ポット型の給電トランスコアの平面図と側面図
である。FIG. 3 is a plan view and a side view of a pot type power feeding transformer core.
【図４】平面コイルを印刷配線基板の表面に実装しトラ
ンスコアを印刷配線基板の裏面から組み付けた状態を示
す断面図である。FIG. 4 is a cross-sectional view showing a state in which a plane coil is mounted on the front surface of a printed wiring board and a transformer core is assembled from the back surface of the printed wiring board.
【図５】給電コイルと受電コイルとのギャップの変動に
対する直流出力電圧の変化率を示す特性図である。FIG. 5 is a characteristic diagram showing a change rate of a DC output voltage with respect to a change in a gap between a power feeding coil and a power receiving coil.
【図６】本発明に係る非接触給電装置の第二の実施形態
における給電部の概略要部構成を示す断面図である。FIG. 6 is a cross-sectional view showing a schematic main configuration of a power feeding section in a second embodiment of the non-contact power feeding apparatus according to the present invention.
【図７】本発明に係る非接触給電装置の第三の実施形態
における給電部の概略要部構成を示す断面図である。FIG. 7 is a cross-sectional view showing a schematic main configuration of a power feeding section in a third embodiment of the non-contact power feeding apparatus according to the present invention.
【図８】（ａ）は導線支持部、（ｂ）は端末クリップ、
（ｃ）はスルーホールにリード端末と共に挿通した端末
クリップ、（ｄ）は平面コイルのリード端末を導線支持
部で支持し端末クリップでスルーホールに挿通した様子
を示す側面図である。FIG. 8 (a) is a lead wire supporting portion, (b) is a terminal clip,
(C) is a terminal clip inserted through the through hole together with the lead terminal, and (d) is a side view showing a state in which the lead terminal of the planar coil is supported by the conductive wire support portion and inserted through the through hole by the terminal clip.
【図９】（ａ）はＥ型コア、（ｂ）はＰＱ型コアの斜視
図である。9A is a perspective view of an E-type core, and FIG. 9B is a perspective view of a PQ-type core.
【図１０】印刷配線基板上にプリントパターンで形成さ
れたコイルパターン部を有する従来の非接触給電装置の
給電部側の要部概略構成を示す分解斜視図である。FIG. 10 is an exploded perspective view showing a schematic configuration of a main part on a power feeding part side of a conventional non-contact power feeding device having a coil pattern part formed by a printed pattern on a printed wiring board.
【図１１】平面コイルを使用し、トランスコアをブラケ
ット等によって印刷配線基板上に取り付ける従来の非接
触給電装置の給電部側の要部概略構成を示す分解斜視図
である。FIG. 11 is an exploded perspective view showing a schematic configuration of a main part of a conventional non-contact power supply device on the power supply part side, in which a plane coil is used and a transformer core is mounted on a printed wiring board by a bracket or the like.
１１ 非接触給電装置 １４ インバータ回路部 １５ 給電コイル １５ａ 平面コイル １５ｂ、１５ｃ、１５ｄ リード端末 １６ 整流回路部 １７ 受電コイル １８ 給電印刷配線基板 １８ａ 中心部コア貫通孔 １８ｂ、１８ｃ 外部コア貫通孔 １９ａ 中心部コア １９ｂ、１９ｃ 外部コア １９ｆ 第一開口部 １９ｇ 第二開口部 ２０ 給電部ケース ２０ｂ 給電部ケースの表面部 ２３ 弾性部材 ２５ 放熱フィン ２６ 導線支持部 ２６ａ リード端末案内部 ２６ｂ リード端末固定部 ２７ 端末クリップ ２７ａ クリップ本体部 ２７ｂ 導線係止部 ２７ｃ 本体係止部 ２７ｄ 抜け止め部 11 Non-contact power supply device 14 Inverter circuit section 15 feeding coil 15a planar coil 15b, 15c, 15d Lead terminal 16 Rectifier circuit section 17 Power receiving coil 18 Power supply printed wiring board 18a Central core through hole 18b, 18c External core through hole 19a core 19b, 19c External core 19f First opening 19g Second opening 20 power supply case 20b Surface of power supply case 23 Elastic member 25 radiating fins 26 Conductor support 26a Lead terminal guide section 26b Lead terminal fixing part 27 terminal clips 27a clip body 27b Conductor locking part 27c Main body locking part 27d retaining part
フロントページの続き (72)発明者 石塚 順一 東京都千代田区丸の内２丁目６番１号 古 河電気工業株式会社内 Ｆターム(参考） 4E351 BB09 BB11 CC40 GG20 5E336 AA01 BB01 BC04 CC01 CC55 CC59 EE01 GG30 Continued front page (72) Inventor Junichi Ishizuka 2-6-1, Marunouchi, Chiyoda-ku, Tokyo Kawa Electric Industry Co., Ltd. F-term (reference) 4E351 BB09 BB11 CC40 GG20 5E336 AA01 BB01 BC04 CC01 CC55 CC59 EE01 GG30
Claims (9)
イルと受電コイルとを備えた非接触給電装置であって、 前記各コイルは、コイル本体と、このコイル本体の中心
部を挿通して設けられる中心部コアおよびこの中心部コ
アの一端部に連接されて前記コイル本体の周囲に位置付
けられる外部コアからなるトランスコアをそれぞれ具備
してなり、 前記給電コイルおよび／または受電コイルのコイル本体
を、所定の印刷配線基板の表面に実装すると共に、当該
コイルのトランスコアをなす前記中心部コアおよび外部
コアを前記印刷配線基板に設けられたコア貫通孔を挿通
させて該印刷配線基板の裏面側から前記コイル本体に組
み付けたことを特徴とする非接触給電装置。1. A non-contact power feeding device including a power feeding coil and a power receiving coil which are magnetically coupled to each other, wherein each coil is provided by inserting a coil body and a central portion of the coil body. Each of which is provided with a transformer core composed of a central core and an external core connected to one end of the central core and positioned around the coil body, and the coil body of the power feeding coil and / or the power receiving coil, While being mounted on the surface of a predetermined printed wiring board, the central core and the outer core that form the transformer core of the coil are inserted through the core through holes provided in the printed wiring board from the back surface side of the printed wiring board. A non-contact power supply device which is assembled to the coil body.
イル本体は、平面コイルからなる請求項１に記載の非接
触給電装置。2. The contactless power supply device according to claim 1, wherein the coil body mounted on the surface of the printed wiring board is a flat coil.
て、 前記給電コイルは、直流電力を交流電力に変換して上記
給電コイルを駆動するインバータ回路部が形成された給
電印刷配線基板上に設けられ、 前記受電コイルは、受電コイルが受電した交流電力を直
流電力に変換する整流回路部が形成された受電印刷配線
基板上に設けられることを特徴とする非接触給電装置。3. The contactless power supply device according to claim 1, wherein the power supply coil is provided on a power supply printed wiring board on which an inverter circuit unit for converting DC power into AC power and driving the power supply coil is formed. The non-contact power feeding device, wherein the power receiving coil is provided on a power receiving printed wiring board on which a rectifying circuit unit that converts AC power received by the power receiving coil into DC power is formed.
刷配線基板の少なくとも一方はケースに収納され、 このケースは、給電コイルと受電コイルの磁気結合部側
の側面が、この磁気結合部を除いて磁気シールド部材で
形成されていることを特徴とする請求項３に記載の非接
触給電装置。4. At least one of the power feeding printed wiring board and the power receiving printed wiring board is housed in a case, and in this case, the side surfaces of the power feeding coil and the power receiving coil on the side of the magnetic coupling portion except the magnetic coupling portion. The contactless power supply device according to claim 3, wherein the contactless power supply device is formed of a magnetic shield member.
は、この前記ケースとこの前記ケースに取り付けられた
印刷配線基板とで挟持されることを特徴とする請求項４
に記載の非接触給電装置。5. The transformer core housed in the case is sandwiched between the case and a printed wiring board attached to the case.
The contactless power supply device according to.
て、 前記トランスコアと前記ケースとの間には、さらに弾性
部材が挟持されていることを特徴とする非接触給電装
置。6. The non-contact power supply device according to claim 5, wherein an elastic member is further sandwiched between the transformer core and the case.
ランスコアを挟持するケースの外部には放熱部が形成さ
れていることを特徴とする請求項５または６に記載の非
接触給電装置。7. The non-contact power supply device according to claim 5, wherein a heat dissipation portion is formed outside the case that holds the transformer core together with the printed wiring board.
イル本体は、そのリード端末を前記印刷配線基板の表面
に実装された導線支持部に挟持されて固定された後、そ
の先端を端末クリップのリード端末係止部に係止して前
記印刷配線基板に穿たれたスルーホールに挿通させて電
気的接続がなされることを特徴とする請求項１に記載の
非接触給電装置。8. The main body of the coil mounted on the surface of the printed wiring board has its lead terminal sandwiched and fixed by a conductor supporting portion mounted on the surface of the printed wiring board, and the tip end thereof is a terminal clip. 2. The non-contact power feeding device according to claim 1, wherein the non-contact power feeding device is electrically connected by being engaged with the lead terminal engaging portion and being inserted into a through hole formed in the printed wiring board.
ード端末を案内する開口部を有する案内部と、前記開口
部に相対して配置された固定部とを備え、 前記端末クリップは、略長方形状のクリップ本体部の先
端に前記導線係止部が設けられ、さらに、上記クリップ
本体部の他端に設けられて前記スルーホールに係止する
本体係止部と、前記クリップ本体部から前記本体係止部
に向かって延出して弾性を有する抜け止め部とを備えた
ことを特徴とする請求項８に記載の非接触給電装置。9. The conductive wire support portion includes a guide portion having an opening portion for guiding the lead terminal of the coil body, and a fixing portion arranged so as to face the opening portion, and the terminal clip is substantially The lead wire locking portion is provided at the tip of the rectangular clip main body portion, and further, the main body locking portion is provided at the other end of the clip main body portion and locks in the through hole, and The contactless power supply device according to claim 8, further comprising: a retaining portion that extends toward the main body locking portion and has elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001334720A JP2003142327A (en) | 2001-10-31 | 2001-10-31 | Non-contact feeder system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001334720A JP2003142327A (en) | 2001-10-31 | 2001-10-31 | Non-contact feeder system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003142327A true JP2003142327A (en) | 2003-05-16 |
Family
ID=19149811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001334720A Pending JP2003142327A (en) | 2001-10-31 | 2001-10-31 | Non-contact feeder system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003142327A (en) |
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| US11960312B2 (en) | 2013-08-06 | 2024-04-16 | Analog Devices, Inc. | Secure power supply for an industrial control system |
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