201021354 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種具有感應地耦接至一高頻電流 饋線之讀寫(Pickup)單元的非接觸電源供應系統，而此系統 被設計藉由讀寫單元所感應的電動勢而供應電力給一負 載。 【先前技術】 在例如日本專利公開第2003-528555、11-192866和 2004-120880號，以及日本專利第3263421號，都揭露了 此種非接觸電源供應系統。在這些非接觸電源供應系統 中’都已安裝一高頻電流饋線’其會沿著一傳動單元(T r av e j Unit)之移動執跡而延伸。配置在傳動單元中的一讀寫單 元’會被感應地耦接至饋線。藉由讀寫單元所感應的電動 勢，就可以供應電力給一負載，該負載例如是一種用來推 動該傳動單元的電動馬達。 —讀寫單元包括一圍繞著饋線的管狀核心，以及由纏繞 著核〜之繞線所形成的繞組。大多數的磁通量都是圍繞饋 線而產生且通過該核心 '，因此在繞組中所感應的電動勢就 會增加。核心具有朝饋線軸方向延伸的開口，使得至少饋 線可以徑向地通過此開口。皿，讀寫單元很容易安裝到 饋線上，或從饋線移除。 在，統讀寫單元所使用的核心，其橫剖面大致上為 ，拿接^外型。因此，#核心、的内或外環繞表面是由互相 得的平面卿成時，部分_通量會從表面到表面的邊 201021354 界部（或角洛部)漏失。這就造成了電力從饋雜換至讀寫 單元之效能降低的問題。 另卜由於傳統之讀寫單元的核心内’形成内喪有馈 線的開口 ’因此磁通量也會部分地通過核心的開口而漏 失。而由於漏失的磁通量會流經配置在讀寫單元附近的金 屬構件’例如傳動單元和移動軌道，因此會產生渦電流 (Eddy±cur=nt) ’而造成了電力的損耗。這可能會造成轉換 、給給明寫單元的電力下降。假設有兩條饋線，其中-條内 置於核〜中的饋線，與配置在讀寫單元附近的另一饋線分 別進^和離開高頻電源供應器，則環繞另一饋線而產生的 磁通量就會抵消透過開σ而通過核心的磁通量。這也可能 會造成轉換至讀g單元之電力的效能下降。_在傳統的 t法中’在繞組和傳動單元之間會提供—磁防護層，但是 部未考慮到從核心之開口所漏失之磁通量的影響，或未考 慮配置在核心外部之饋線周圍所產生之磁通量的影響。 【發明内容】 ❹日有繁於此’本發明提供一種非接觸電源供應系統，可 ス提升電力從一饋線轉換到一讀寫單元的效能，並且可以 增加所供應的電力的量。 本發明更提供-種非接觸電源供應系統，可以減少從 ^之開口賴失之磁通量的影響，歧使配置於核心外 4之饋線周圍所產生的磁通量的影響減少。 树明還提供-種非接觸電源供應祕，可以穩定核 心的高頻阻抗。 201021354 依,,、、本發明的第—觀點則提供_種非接觸電源供應 Ί统匕括•饋線，其有一高頻電流流過；以及一讀寫 單兀，被感應地祕域線並感應-電動勢，使非接觸電 源供應系統供應電力給—負載，其中讀寫單元包括一管狀 核〜’可以包ϋ環繞該饋線，並且在核心上職繞一繞線 而开/成繞組’其中核心具有一内表面、一外表面和一開 口，係朝饋線之軸方向延伸，使得至少該饋線在徑向中通 過開ιϊή核、之内表面和夕卜表面至少其中之一表面係 形成一弧形的表面外型。 依照本發明第二觀點，則提供一種非接觸電源供應系 統’包括：—饋線，其有一高頻電流流過；以及-讀寫單 兀，被感應地輕接至镇線，並感應—電動勢，使非接觸電 源供應系祕應電力給—負載，其中讀寫單元包括一管狀 核〜’可以包圍環繞該饋線，並且-繞線在核心上纏繞成 果層而形赤。 依,、、、本發明的第二觀點，則提供一種非接觸電源供應 系統’包括：1線，其有—高頻電流流過；以及-讀寫 單π ’被感應地_至饋線，並感應—電動勢，使非接觸 電源供應系統供應電力給—負载，其中讀寫單元包括：〆 管狀核心，可以包圍環繞該饋線，而核心則具有一開口， 該開口係朝饋線的軸方向延伸，使得至少饋線在徑向中通 過該開口，—繞组，由—繞線賴在該核心上而形成；以 及磁14防護體，是以具有高導磁率的材料所製成。 依照本發明第四觀點，則提供一種非接觸電源供應系 201021354 統，包括：一饋線，其有一高頻電流流過；以及一讀寫單 疋，被感應地耦接至饋線，並感應一電動勢，使非接觸電 源供應系統供應電力給一負載，其中讀寫單元包括：一管 狀核二，可以包圍環繞該饋線，而核心則具有一開口，該 開口係朝饋線的軸方向延伸，使得至少饋線在徑向中通過 ，口 ’-繞組’由—繞_繞在雜。上㈣成，而該饋 S有内置於核心内部的内部饋線以及配置在核心外部的 卜：：線；以及一磁性防護體，是以具有高導磁率的材料 所衣成，並配置在外部饋線和核心關口之間。 系絲依f本發明的第五觀點’則提供一種非接觸電源供應 讀寫單匕括=座一饋線，其有一高頻電流流過；以及二 .Ο ，電源供應系統供應電力給一負载η 括·一管狀核心，可以包圍環繞续.二二.，，、早兀匕 其適合環繞該核心；以及—’ 轴上所形成，其中該核心繞線纏繞在該線 f面和-外部環繞表面’並且該核=== 切面’此橫切面與核心的轴方 致為c形的檢 外部環繞表面和多個定位突起：：個;;中:線軸包括-r發明之 舉實施例，並配合所附圖式作詳細說3易 201021354 【實施方式】 以下’將就本發明的實施例’並且伴隨著對應的圖式 而有詳細的敛述。 (第一實施例） 請參照圖3A，本實施例的非接觸電源供應系統包括 安裝成一迴路外型的饋線100、用來透過饋線1〇〇而供應 高頻電流的高頻電源供應器110、以及被感應地輕接至镇 線100的讀寫單元1。讀寫單元1供應電力給一負載ηι， 該負載例如是換流器(inverter)或馬達。 如圖3B所示，饋線1〇〇包括整個藉由彎折一金屬板 和絕緣體104所形成的導體，而此絕緣體104是由合成樹 脂塑造成方管外型所形成，而絕緣體104則覆蓋^該導 體。該導體包括圓柱形内管部101、配置在内管部1〇^外 的圓柱形外管部1〇2、以及將内管部101和外管部⑽2連 接成互相為同軸關係的連接部1〇3。在典型的圓柱形饋線 中’當有高頻電流流過時，會產生一阻抗或〜μ 、古-Tiam 巧頻阻抗， 這可歸因於表面效應和鄰近效應、以及導體之 屬板)所具有的阻抗。然而’當使用如圖3B所/例^金 導體作為讀線1〇〇時，與圓柱形饋線相比，可之雙管型 的南頻阻抗以及電力損耗。但是，不需要用q二有較低 =饋線。甚至，饋線可以贿多不同的麵來=構^ 屬的掩出成型(extrusion molding)、將具有、車 官内嵌到抑巾、或是其它娜的方法。而 之内 為饋線之不同的實施例。饋線刚，包括 則繪示 賤和一絕緣體 201021354 104而此絕緣體1〇4，是一合成樹脂產品，並且具有方管 外L而導體則被絕緣體104,所覆蓋。導體包括一圓柱形 内管部101’、配置在内管部1〇1，外部的圓柱形外管部 102’、以及四個連接部1〇3，，以將内管部1〇1，和外管部 連接成互相為同心關俾。. 讀寫單元1包括核心2、繞組3、線軸4、磁性防護體 ^和電源接收電路單元6。電源接收電路單元6包括一電 0 f，係與繞組3配合而形成一共振電路，而定電壓電路則 是將此共振電路所輸出的共振電壓轉換為一種定電壓，諸 如此類。 如圖1A所示，核心2具有弧形或圓柱狀表面形狀的 内部環繞表面和外部環繞表面，且核心2具有 ，的横切面，其熟方峨是垂直於紙面平面的方向為)相 父。核心2具有互相面向的相對端部2〇，而各相 之間可以形成開口 2a。在轴向所獲得之相對端部2〇的橫 切面，會比核心2的其餘部分(以下稱為本體部）21還大。 〇 、線軸4是合成樹脂塑成之方管外型的產品所形成並且 被彎曲成-弧形外型。在線轴4周圍的相對端提供有許多 的外部凸緣40。從開口 21a到相對端點的直徑上，可以將 核心2的本體部21對分成兩個本體片段。類似地，線軸4 可被對分成兩個線軸片段。圖1A所示的核心2可以利用 將這些本體片段内喪至線軸片段内，並且將兩個本段 的端點部接合在一起而組裝起來。 藉由將具有絕緣塗佈層的繞線纏繞在線軸4上而成為 201021354 -單層’就可以形成繞組3。相對端部2〇血本體 間的階層(鄉)差，被設定大於繞線的直徑，使得繞組3不 3會2G _卜飾。魏可以在繞組 =端點的位置使核心2之相對端部20所漏出的磁通量減 來製、rm5可以利用具有高導磁率的磁性金屬材料 來製仏’其具有大致上為圓柱形的外型，並且可盘核心2 ^繞=的外部配合。磁性防護體5具有軸向延伸的溝槽 5a ’其與核心2的開〇 2a相通。 ，：透過開口 2a而被置入且内嵌於核心2的内 磁间頻電流流經該饋線1GG ’則—高頻磁場(或是 會以同心圓的圖案形而成在舰100周圍。磁通量 圖I ί顯的方向流過核心2。假設核心2，(請參照 ，鄉是角;：：二會^ 在本實施例中，核心2具有弧形或圓柱 繞 環繞表面且大致上以“c”形橫切面而與钟方 的部;^此’如圖1B所示，磁通量很難從開Π 2a之外 核2於此特徵’與圖1C所示之習知技術的 相比，本實施例可以提升從饋線1〇〇傳輪電力矣讀 • 70的效能，並且增加供應之電力的量。雖然核心2 201021354 ❿ ❹ 的内部和外部的環繞表面在本實施例都可以形成弧形但 是也可以如圖2A所繪示，只有外部環繞表面形成弧形， 或是如圖2B所示，只有内部環繞表面形成弧形。無論是 這兩種形狀中之哪一種使用在核心2上，與習知具右客 平面表面互相結合的核心2,相比，都可以在内部環^表面 或外部環繞表面減少從核心2之除了開口 2a之部份$來的 磁通量之漏失。然而，顯而易見的，本實施例之核心2.所 傳送之電力的效能要高於圖2A和圖2B此二者。 若是兩條饋線1〇〇中進入或離開高頻電源供應器ιι〇 ，了條被放置在核心2内部，而另一條被放置在接"近讀寫 單7G 1的附近，則環繞另一條饋線100而產生的磁通量就 會抵消通過核心2的磁通量。這就可能使電力傳送至 單元1時的效能下降。在本實施例中，核心2和繞^舍 破磁性防護體5所覆蓋且受到磁性的防護。而由於 使㈣如2的额衫會被转的磁場(或通 置)所消除。這就可以降低電力的損耗。 由在本實施例中，開口 2a是形成在讀寫單元1的核心2 ’以致於饋線1〇〇可以容易地插入至讀寫單元丨以 。在開口2a的部分(或間隙)中，磁路的 門有馨於此，互相面向的相對端部2〇(其 開口 2a)所形成的軸向橫切面，會比本體部21的 就保證在核心2之相對端部2G中的磁阻， 比本翁21中的磁阻還柯此降低磁通量 開2a而從核心2漏失的量。 11 201021354 若繞組是由纏繞多層繞線所形成，則繞組的高步 會由於鄰近效應而增加，因此會降低電 員陡抗 實施例中，由於繞组3是藉由將繞線在核本 層所形成。因此，與將繞線纏繞成多層的情形比較境= :例可以有助於降低高頻阻抗，並且進而提升電力傳2 (第二實施例） 本實施例的非接觸電源供應系統，揭露了具有第一趣 施例之非接觸電源供應系統的基本架構。因此，構件部二 共通於第一實施例，並且藉由相同的特性來設計，在此^ 多作贅述。 在本實施例中，兩條饋線100進入或離開高頻電源供 應器110 ’其中一條（内部饋線)被安置在校心的内部，並且 另一條(外部饋線)則安置在讀寫單元i的附近。在此狀況 下，在配置於核心2之外部的外部饋線1〇〇周圍所產生的 磁通量，會與在配置於核心2内部之内部饋線1〇〇周圍所 產生的磁通量成相反方向而流動，並且可能會抵消通過核 ❹ 心2的磁通量。然而，在本實施例中，核心2和繞組3都 被覆蓋著磁性防護體5。這就可以避免在外部饋線1〇〇周 圍所產生的磁通量流過核心2。因此，本實施例就可以避 免讀寫單元1之電力傳送效率的衰減。 使用在本實施例中的核心2具有開口 2a，而通過該開 口 2a可以内嵌饋線1〇〇。因此，通過核心2的磁通量會部 分地透過該開口 2a而漏失。而漏失的磁通量會因此造成渴 12 201021354 電流而流過一導電軌200，並且造成電力的損耗。如此就 可能會降低讀寫單元1的電力傳送效率。 若磁性防護體5的孔徑5a被圖5所示的防護蓋50所 關閉且可被打開，這就可以防護另外通過開口 2a的磁通 量，並且可以降低歸因於由漏磁通量所產生之渦電流的電 力損耗。磁性防護蓋50是由與磁性防護體5相同的材料所 製成並且形成一種帶板形狀。磁性防護蓋50係可移除地配 合於磁性防護體5的溝槽5a。而如圖6所示，一磁性防護 體5’可以取代磁性防護體5來覆蓋核心2和繞組3，磁性 防護體5’可移除地連接至核心2的相對端部20,以將核心 2的開口 2a關閉。在此實施例中，同樣也可以降低由渦電 流所引起之電力的損耗。 (第三實施例） 本實施例的非接觸電源供應系統，揭露了具有第二實 施例之非接觸電源供應系統的基本架構。因此，構件部分201021354 VI. Description of the Invention: [Technical Field] The present invention relates to a contactless power supply system having a pickup unit that is inductively coupled to a high frequency current feed line, and the system is designed to The electric power is supplied to a load by the electromotive force induced by the reading and writing unit. [Prior Art] Such a contactless power supply system is disclosed in, for example, Japanese Patent Laid-Open Publication Nos. 2003-528555, 11-192866, and 2004-120880, and Japanese Patent No. 3,263,421. In these contactless power supply systems, 'a high frequency current feeder' has been installed which will extend along the movement of a transmission unit (T r av e j Unit). A read/write unit disposed in the drive unit is inductively coupled to the feed line. By the electromotive force induced by the read/write unit, power can be supplied to a load, such as an electric motor for propelling the transmission unit. - The read/write unit comprises a tubular core surrounding the feed line and a winding formed by a winding wound around the core. Most of the magnetic flux is generated around the feed and through the core ', so the electromotive force induced in the windings increases. The core has an opening extending in the direction of the feed axis such that at least the feed line can pass radially through the opening. The dish, read/write unit is easy to install on the feeder or removed from the feeder. In the core used by the unified reading and writing unit, the cross section is roughly the same as that of the external type. Therefore, when the #core, inner or outer wraparound surface is formed by the mutual plane, part of the flux will be lost from the surface to the edge of the surface 201021354 (or the corner). This causes a problem of reduced power efficiency from feed to read and write units. In addition, since the core of the conventional read/write unit is formed into an opening having a feeder, the magnetic flux is also partially lost through the opening of the core. Since the lost magnetic flux flows through the metal member '' disposed near the read/write unit, for example, the transmission unit and the moving rail, an eddy current (Eddy±cur=nt)' is generated to cause power loss. This may cause a drop in power for the conversion and the write-on unit. Suppose there are two feeders, where the - feeder is built into the core ~, and another feeder placed near the reader/writer unit separates and leaves the high-frequency power supply, then the magnetic flux generated around the other feeder will The magnetic flux passing through the core through the σ is cancelled. This may also result in a decrease in the performance of the power converted to the g unit. _In the traditional t method, 'the magnetic protection layer is provided between the winding and the transmission unit, but the part does not take into account the influence of the magnetic flux lost from the opening of the core, or the distribution around the feeder outside the core is not considered. The effect of magnetic flux. SUMMARY OF THE INVENTION The present invention provides a contactless power supply system that can increase the efficiency of power conversion from a feeder to a read/write unit and can increase the amount of power supplied. The present invention further provides a non-contact power supply system which can reduce the influence of the magnetic flux which is lost from the opening of the opening, and which reduces the influence of the magnetic flux generated around the feed line disposed outside the core. Shuming also provides a non-contact power supply secret that stabilizes the core's high frequency impedance. 201021354 According to the first aspect of the present invention, a non-contact power supply system includes a feed line having a high-frequency current flowing through it, and a read/write single-turn, which is sensed and secreted. - an electromotive force that causes the contactless power supply system to supply power to the load, wherein the read/write unit includes a tubular core - 'can wrap around the feed line and is wound around the core to form a winding/winding' An inner surface, an outer surface and an opening extend toward the axis of the feed line such that at least the feed line forms an arc in the radial direction through at least one of the surface of the open core, the inner surface and the outer surface Surface appearance. According to a second aspect of the present invention, a contactless power supply system is provided which includes: a feed line through which a high frequency current flows; and a read/write unit that is inductively connected to the town line and senses an electromotive force. The non-contact power supply system is configured to supply power to the load, wherein the read/write unit includes a tubular core - 'can surround the feed line, and - the winding is wound around the core layer and shaped red. According to a second aspect of the present invention, a contactless power supply system includes: a line having a high frequency current flowing through; and a read/write single π' being inductively _ to a feeder line, and Inductive-electromotive force, the non-contact power supply system supplies power to the load, wherein the read/write unit comprises: a tubular core that can surround the feed line, and the core has an opening that extends toward the axis of the feed line, such that At least the feed line passes through the opening in the radial direction, the winding, which is formed by the winding on the core, and the magnetic 14 shield, which is made of a material having a high magnetic permeability. According to a fourth aspect of the present invention, a contactless power supply system 201021354 is provided, comprising: a feed line having a high frequency current flowing through; and a read/write unit, inductively coupled to the feed line, and sensing an electromotive force The non-contact power supply system supplies power to a load, wherein the read/write unit comprises: a tubular core 2, which can surround the feeder, and the core has an opening extending toward the axis of the feed line, so that at least the feeder Passing through in the radial direction, the port '-winding' is wound by - winding. Upper (four), and the feed S has an internal feed line built in the core and a b:: line disposed outside the core; and a magnetic shield, which is made of a material having a high magnetic permeability and is disposed on the external feed line Between the core and the gateway. The fifth aspect of the present invention provides a contactless power supply, a read/write unit, a feed line, a high frequency current flowing through it, and a power supply system for supplying power to a load η. a tubular core that can be surrounded by a continuation. Two, two, and, as long as it fits around the core; and -' formed on the shaft, wherein the core winding is wound around the line f-and the outer surrounding surface 'And the core === cut surface' This cross section and the core axis of the core are c-shaped inspection outer surrounding surface and a plurality of positioning protrusions::; middle: the bobbin includes -r embodiment of the invention, and cooperates DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the corresponding drawings. (First Embodiment) Referring to FIG. 3A, the contactless power supply system of the present embodiment includes a feeder 100 installed in a loop shape, a high frequency power supply 110 for supplying a high frequency current through the feeder 1 , And the reading and writing unit 1 that is inductively connected to the town line 100. The read/write unit 1 supplies power to a load η, which is, for example, an inverter or a motor. As shown in FIG. 3B, the feed line 1 includes the entire conductor formed by bending a metal plate and an insulator 104, and the insulator 104 is formed of a synthetic resin into a square tube shape, and the insulator 104 is covered. The conductor. The conductor includes a cylindrical inner tube portion 101, a cylindrical outer tube portion 1〇2 disposed outside the inner tube portion 1〇, and a connecting portion 1 connecting the inner tube portion 101 and the outer tube portion (10) 2 to each other in a coaxial relationship. 〇 3. In a typical cylindrical feeder, 'when there is a high-frequency current flowing, an impedance or ~μ, Gu-Tiam frequency impedance, which can be attributed to surface effects and proximity effects, and the conductor plate) Impedance. However, when the gold conductor of Fig. 3B is used as the read line 1 ,, the south-frequency impedance and the power loss of the double-tube type can be compared with the cylindrical feed line. However, there is no need to use q two to have a lower = feeder. Even the feeder can bribe a lot of different faces = the extrusion molding of the structure, the method of embedding the car to the towel, or other methods. Within the meantime, different embodiments of the feeder are provided. The feeder, including the 贱 and an insulator 201021354 104, and the insulator 1〇4, is a synthetic resin product, and has a square tube outer L and the conductor is covered by the insulator 104. The conductor includes a cylindrical inner tube portion 101', an inner tube portion 1〇1, an outer cylindrical outer tube portion 102', and four connecting portions 1〇3 to connect the inner tube portion 1〇1, and The outer tube portions are connected to each other in a concentric relationship. The read/write unit 1 includes a core 2, a winding 3, a bobbin 4, a magnetic shield body ^, and a power receiving circuit unit 6. The power receiving circuit unit 6 includes an electric 0 f which cooperates with the winding 3 to form a resonant circuit, and the constant voltage circuit converts the resonant voltage outputted by the resonant circuit into a constant voltage, and so on. As shown in Fig. 1A, the core 2 has an inner circumferential surface and an outer circumferential surface in the shape of a curved or cylindrical surface, and the core 2 has a cross-section of the cross-section, the square of which is perpendicular to the plane of the plane of the paper. The core 2 has opposite ends 2〇 facing each other, and an opening 2a can be formed between the phases. The cross-section of the opposite end portion 2〇 obtained in the axial direction is larger than the rest of the core 2 (hereinafter referred to as the body portion) 21. 〇 The bobbin 4 is formed of a synthetic resin molded square tube outer shape and is bent into a curved shape. The opposite ends around the spool 4 are provided with a plurality of outer flanges 40. From the opening 21a to the diameter of the opposite end point, the body portion 21 of the core 2 can be divided into two body segments. Similarly, the spool 4 can be split into two spool segments. The core 2 shown in Fig. 1A can be assembled by burying these body segments into the spool segments and joining the end portions of the two segments together. The winding 3 can be formed by winding a winding having an insulating coating layer on the bobbin 4 to become 201021354 - a single layer. The difference in the level (township) between the opposite ends of the blood body is set to be larger than the diameter of the winding, so that the winding 3 does not have 2G _. Wei can reduce the magnetic flux leakage from the opposite end 20 of the core 2 at the position of the winding=end point, and the rm5 can be made of a magnetic metal material having a high magnetic permeability, which has a substantially cylindrical shape. And the outer core of the disk core 2 ^ winding =. The magnetic shield 5 has an axially extending groove 5a' which communicates with the opening 2a of the core 2. ,: an internal magnetic interim current that is inserted through the opening 2a and embedded in the core 2 flows through the feed line 1GG' - a high-frequency magnetic field (or may be formed in a concentric pattern around the ship 100. Magnetic flux Figure I ί flows in the direction of the core 2. Assume the core 2, (please refer to the township is the corner;:: two will ^ In this embodiment, the core 2 has an arc or a cylinder around the surrounding surface and substantially "c" "The cross-section and the portion of the bell; as shown in Fig. 1B, the magnetic flux is difficult to be outside the opening 2a. The core 2 is compared to the conventional technique shown in Fig. 1C. This embodiment is compared with the conventional technique shown in Fig. 1C. For example, the efficiency of the power reading from the feeder 1 can be increased, and the amount of power supplied can be increased. Although the inner and outer surrounding surfaces of the core 2 201021354 ❿ 在 can be curved in this embodiment, As shown in Fig. 2A, only the outer surrounding surface is curved, or as shown in Fig. 2B, only the inner surrounding surface is curved. Whichever of the two shapes is used on the core 2, Knowing that the right side plane surface is combined with the core 2, compared to The surface of the ring or the outer surrounding surface reduces the loss of magnetic flux from the portion of the core 2 other than the opening 2a. However, it is apparent that the power transmitted by the core of the present embodiment is higher than that of FIG. 2A and Figure 2B. If two feeders enter or leave the high frequency power supply ιι〇, the strip is placed inside the core 2, and the other is placed in the "near read and write single 7G 1 Nearby, the magnetic flux generated around the other feeder 100 will cancel the magnetic flux passing through the core 2. This may reduce the performance when power is transmitted to the unit 1. In this embodiment, the core 2 and the winding magnetic protection The body 5 is covered and protected by magnetic force, and the magnetic field (or the through) of the (4) such as 2 is eliminated by the rotating magnetic field (or the through). This can reduce the power loss. In the present embodiment, the opening 2a is Formed in the core 2' of the read/write unit 1 so that the feed line 1 can be easily inserted into the read/write unit. In the portion (or gap) of the opening 2a, the doors of the magnetic circuit are slicked and facing each other. The opposite end 2〇 (its opening 2a) is shaped The axial cross-section of the body is guaranteed to be smaller than that of the main body portion 21 in the opposite end portion 2G of the core 2, and the amount of magnetic flux leakage from the core 2 is reduced by 2a. 11 201021354 If the winding is formed by winding a plurality of windings, the high step of the winding will increase due to the proximity effect, thus reducing the electrician's steep resistance in the embodiment, since the winding 3 is in the core by winding The layer is formed. Therefore, compared with the case where the winding is wound into a plurality of layers, the case can help reduce the high-frequency impedance, and further enhance the power transmission 2 (second embodiment) The contactless power supply system of the present embodiment The basic architecture of the contactless power supply system with the first interesting embodiment is disclosed. Therefore, the member portion 2 is common to the first embodiment, and is designed by the same characteristics, and will be described herein. In the present embodiment, two feeder lines 100 enter or leave the high frequency power supply 110', one of which (internal feeder) is placed inside the center of the core, and the other (external feeder) is placed near the read/write unit i . In this case, the magnetic flux generated around the external feeder 1〇〇 disposed outside the core 2 flows in the opposite direction to the magnetic flux generated around the internal feeder 1〇〇 disposed inside the core 2, and It may offset the magnetic flux passing through the core 2 . However, in the present embodiment, both the core 2 and the winding 3 are covered with the magnetic shield 5. This makes it possible to prevent the magnetic flux generated around the external feeder 1 from flowing through the core 2. Therefore, the present embodiment can avoid the attenuation of the power transmission efficiency of the reading and writing unit 1. The core 2 used in this embodiment has an opening 2a through which the feed line 1 can be embedded. Therefore, the magnetic flux passing through the core 2 is partially leaked through the opening 2a. The lost magnetic flux will thus cause a current to flow through a conductive rail 200 and cause power loss. Thus, the power transmission efficiency of the reading and writing unit 1 may be lowered. If the aperture 5a of the magnetic shield 5 is closed by the protective cover 50 shown in Fig. 5 and can be opened, this can protect the magnetic flux which is additionally passed through the opening 2a, and can reduce the eddy current due to the leakage flux. Power loss. The magnetic protective cover 50 is made of the same material as the magnetic shield 5 and forms a strip shape. The magnetic shield 50 is removably fitted to the groove 5a of the magnetic shield 5. As shown in FIG. 6, a magnetic shield 5' can cover the core 2 and the winding 3 instead of the magnetic shield 5, and the magnetic shield 5' is removably connected to the opposite end 20 of the core 2 to connect the core 2 The opening 2a is closed. In this embodiment as well, the loss of electric power caused by the eddy current can be reduced. (Third Embodiment) The contactless power supply system of the present embodiment discloses the basic architecture of the contactless power supply system having the second embodiment. Therefore, the component part
共通於第二實施例’並且藉由相同的特性來設 多作贅述。 在第二實施例所提出的連接方式中，需要憂心的是， =核心2的磁通量’可能會麵在配置於核心2外部之 外補線励周圍所產生的磁通量影響而降低。 ^本實施射，就如圖7騎，由具有高導磁率之磁 製造的磁性防護體7，係配置在位於核心2外部 係4成具有大致為W型的橫切面且其縱向相對 13 201021354The second embodiment is common and the description is made by the same features. In the connection method proposed in the second embodiment, it is necessary to worry that the magnetic flux ' of the core 2 may be reduced by the influence of the magnetic flux generated around the external line excitation disposed outside the core 2. In the present embodiment, as shown in Fig. 7, the magnetic shield 7 made of magnetic material having high magnetic permeability is disposed on the outer portion of the core 2 to have a substantially W-shaped cross section and its longitudinal direction is relatively 13 201021354
JZ.*tZ,UpU 部饋線膚可以被容納在磁 ❹ 由=置在转饋線刚和開口 2a之間的磁性防護 ，疋，具有局導磁率的磁性材料來製造，因此就可以 解^寫單元1之核心2和繞組3受到外部饋線1〇〇 所產生之磁通量的影響。甚至，配置在核心2之開口 & 和導電軌2G0之間的磁性防護體7還可以使從開❿所漏 失且連接至導電軌2G0的磁通量下降。這就可以降低歸因 於漏磁通量所產生之職流的電力損耗。在另外選擇 施例’磁性防護體7可以具有如圖8所示的平板外型。JZ.*tZ, UpU part feeder skin can be accommodated in magnetic ❹ by = magnetic protection placed between the feed line and the opening 2a, 疋, magnetic material with local permeability, so that the unit can be solved Core 2 and winding 3 of 1 are affected by the magnetic flux generated by external feeder 1〇〇. Even the magnetic shield 7 disposed between the opening & 2 of the core 2 and the conductive rail 2G0 can cause the magnetic flux leaked from the opening and connected to the conductive rail 2G0 to drop. This reduces the power loss due to the job flow generated by the leakage flux. Alternatively, the magnetic shield 7 may have a flat shape as shown in Fig. 8.
如圖9所示’若是使用第二實施例中的磁性防護體$ 來覆蓋核心2和繞組3，則可以更進—步解除讀寫單元i 之核心2和繞組3受到外部饋線⑽㈣所產生的磁通量 之影響。另外，若是本實施_結構可以結合圖5或圖6 中的結構，其中將核心2的開口 2a利用磁性防護蓋5〇或 磁性防護體5,來關閉，則就可以更進—步降低歸因於從開 口 2a漏失之磁通量所產生之渦電流的電力損耗。 (第四實施例） 本實施例的非接觸電源供應系統，揭露了具有第一實 施例之非接觸電源供應系統的基本架構。因此，構件部分 共通於第-實施例’並且藉由相_特性來設計，在^不 多作贅述。 請參照圖10A和圖腿，定位突出物41朝向核心2 的轴方向延伸’並且向徑向突出’且定位突出物41沿著核 14 201021354 ——c — :周圍方向而並排在線轴4之外部環繞表面上。這些 疋位穴出物41被分成多個突出物組，而每一突出物組都包 括兩個用來定義固定部42的突出物41，關來固定繞組3 中的繞線3G。這些突出物組分別彼此鄰接且被排列成相等 的區間’使得繞線30之鄰接的股之間的間隙“a，，可以維 持一致。 線軸4的角落部，例如内部和外部環繞表面以及側表 β 面之間所圍住的邊界部會被環繞(請參照圖1〇c)。 结繞組3是由具有絕緣塗佈層之繞線3〇在線軸4上纏 ，成為單層所形成。而相對端部20和主體部分21之間的 階層差，被設定為大於繞線30的直徑，以致於繞組3不會 超過核心2的相對端部20而向外移動。 s在本實施例的管狀核心2中，其内部和外部環繞表面 都疋弧形的表面，並且其與轴方向相交的橫切面大致上是 C =狀，而當繞線30密集地纏繞在内部環繞表面上時，在 卜。I5環繞表面上之繞線3〇的每股間就會形成間隙。在習知 2技術中，每一間隙的尺寸會存在差異。這會導致繞組的 =頻阻抗變得不穩定，並且良率會不佳。在本實施例中， 突出物41是排列在線轴4的外部環繞表面上，並且每 卷突出物組中的兩個定位突出物41之間的空間可以用來 當作固定部42，以固定此固定部42中的繞線3〇。因此， 在，軸4之外部環繞表面上之繞線3 0的每股的位置，是由 i疋。卩42的位置來決定。由於此技術特徵’在線軸4之外 F袤繞表面上之繞線3〇每股間之間隙尺寸就可以變得一 15 201021354 致，這有助於該繞組3的高頻阻抗的穩定。 ^在本實施例中，與繞線30之各股接觸之線軸4的角 落部被環繞起來。因此，就可以避免繞線3〇損壞，並且也 可以避免繞線30被線軸4的一些部份所隔開。 在此考慮下，若是繞線30之相鄰的每股之間的間隙 變得更大，就可以降低繞組3之鄰近效應和高頻阻抗的影 響。如圖11所示，固定部42沿著線轴4的環繞方向並二 且可藉由交替排列第一固定部42a和第二固定部42b來形 成，其中第二固定部4冰的深度小於第一固定部42&的深 ❿ 度。使用這樣的配置，就可以增加繞線3〇之相鄰每股之間 的距離“b”（b>a)。如此一來，就可以降低繞組3之鄰近 效應和高頻阻抗的影響。 (第五實施例） 、 本實施例的非接觸電源供應系統，揭露了具有第一實 施例之非接觸電源供應系統的基本架構。因此，構件部分 共通於第一實施例，並且藉由相同的特性來設計，在此二 多作贅述。 請參照圖12和圖13，本實施例的非接觸電源供應系 ❹ 統包括外殼500，是由合成樹脂塑模的產品且具有絕緣的 特性。外殼500包括用來容納核心2和繞組3的第一外殼 部501 ’以及用來谷納共振電路60而不包括繞組3的第二 外殼部502。第一外殼部501形成為具有大致上為c形的 橫切面，以符合核心2的外型。第二外殼部5〇2則形成為 具有一矩形的箱體，其中一表面為開放。_ 16 201021354 —一 - 共振電路60包括一矩形基板61，配置在第二外殼部 502之内下表面的附近，並且與該内下表面平行，多個子 基板62的每一個都配置一或多個電容c(本實施例中繪示 兩個）’而在基板61和子基板62中則配置多個連接器63。 在基板61的表面上還形成一導電圖案(未繪示）。繞組3的 端點(未繪示)從第一外殼部501被推入至第二外殼部5〇2 且電性連接於導電圖案。子基板62的大小係遠小於基板 參 61的大小。端點接腳63b中的一對形成上述的每一連槔器 63且從每一子基板62的一端表面突出（請見圖i3A)。在每 一子基板62的前表面上分別安裝兩個電容c。一導電圖案 (未繪示）用來將電容c的端點及端點接腳63b互相連接且 形成在每一子基板62的背後表面上。 在基板61的表面上鑲嵌有多個外罩63a，而端點接腳 6她可移除的方式分別内嵌在這些外罩 這些外罩63a還透過該導電圖案而電性連接至繞組3。換 句話說，連接器63包括外罩63a和端點接腳63b。繞組3 ❹ *電容C透過越n 63峨此連接，因雜成共振 電路60。由於此種連接器63為眾所皆知的技藝，因此在 圖中就省略詳細的敘述。 若是咼頻電流流經過透過開口 2a而内嵌在核心2中 的饋線100時，則會產生以饋線1〇〇為同心的高頻磁場(或 通量）。磁通量的大部分會沿著—環繞方麵流經核心2。 當磁通量隨著高頻電流改變時，一感應電動勢就會產生在 繞、.且3内戶斤產生的感應電動勢因此會被包括有繞組3和 17 201021354 電谷C之共振電路6〇的共振所放大。而共 认 出的f振電歷會被一種定電愿電路轉換二種定電摩所並』 且接著供應給負载出。 β種疋電|，並 為了 圖i3c所示直接地驗在基板61上，則 6〇内之電容c的電容值，就需要先 外殼部502取出、然後移除電容。3 :士，錫、接著將電容c從基板61上分離， 電谷C的端點烊接到基板61上。甚至，=， ❿ =電輕纽，聽^錢進行職的 == 調整的工作相當龍。 ㈣讀得 C的ΐ圖13B所示’在本實施例中，承载有電容 _連接1163而接合到基板61上或從 加ij/i離。這使得調整電容c之電容值的工作變得更 二:：：：此可知，與圖13C所示習知的架構相 施例可以使職該共振電路6G的步驟簡化。 貫 被設卜罩63a和端點接腳㈣） 可」ΐϊί 互相連接’使該子基板62 、基板61保持垂直。這就提供了降低基板61之大小 的優點。 ，本發明已以實施例揭露如上，然其並非用以限定 ίίΓ任何所屬技術領域中具有通常知識者，在不脫離 1發月之精神和範圍内’當可作些許之更動與潤飾，故本 明之保護範圍當視後附之申請專利範圍所界定者為準。 18 201021354 【圖式簡單說明】 圖1A緣示為依照本發明第一實施例的一種非接觸電 源供應系統之讀寫單元部分切割的剖面圖。 曰圖1B緣示為圖认所示之讀寫單元的通過核心之磁通 量的示意圖。 圖ic繪示為通過傳統讀寫單元之核心之磁通量的示 ，2A和1 2B、絲為其它帛於非_電源供應系統中 讀寫皁元之核心的平面圖。 圖3A緣不為整體非接觸電源供應系統之配置的透視 觸電源供應系統中之 圖3B和圖3C繪示為使用在非接 饋線的剖面圖。 ‘禋非接觸電: ㈢，印不馮依照本發明第二實施例的 供應系統之主要部份的剖面圖。As shown in FIG. 9, if the core 2 and the winding 3 are covered by using the magnetic shield $ in the second embodiment, the core 2 and the winding 3 of the read/write unit i can be further removed by the external feeder (10) (4). The effect of magnetic flux. In addition, if the structure of the present embodiment can be combined with the structure of FIG. 5 or FIG. 6, in which the opening 2a of the core 2 is closed by the magnetic protective cover 5 or the magnetic shield 5, the attribution can be further reduced. The power loss of the eddy current generated by the magnetic flux leaked from the opening 2a. (Fourth Embodiment) The contactless power supply system of the present embodiment discloses the basic architecture of the contactless power supply system having the first embodiment. Therefore, the component parts are common to the first embodiment and are designed by the phase characteristics, and will not be described again. Referring to FIG. 10A and the leg, the positioning protrusion 41 extends 'in the axial direction of the core 2 and protrudes in the radial direction' and the positioning protrusion 41 is arranged side by side along the core 14 201021354 - c - : peripheral direction side by side of the bobbin 4 Surround the surface. These ankle holes 41 are divided into a plurality of protrusion groups, and each protrusion group includes two protrusions 41 for defining the fixing portion 42, which are closed to fix the winding 3G in the winding 3. These sets of protrusions are respectively adjacent to each other and arranged in an equal interval 'so that the gap "a" between the adjacent strands of the winding 30 can be maintained. The corner portions of the bobbin 4, such as inner and outer surrounding surfaces and side tables The boundary portion enclosed between the β faces is surrounded (refer to Fig. 1〇c). The junction winding 3 is formed by winding a bobbin 3 having an insulating coating layer on the bobbin 4 to form a single layer. The step difference between the opposite end portion 20 and the body portion 21 is set to be larger than the diameter of the winding 30 such that the winding 3 does not move outward beyond the opposite end portion 20 of the core 2. s The tubular in this embodiment In the core 2, the inner and outer surrounding surfaces are curved surfaces, and the cross-section intersecting the axial direction is substantially C=like, and when the winding 30 is densely wound around the inner surrounding surface, I5 will form a gap between the windings on the surface of the winding 3〇. In the conventional 2 technique, there will be a difference in the size of each gap. This will cause the winding's frequency impedance to become unstable and the yield will be Not good. In this embodiment, the protrusion 41 The outer circumferential surface of the bobbin 4 is arranged, and the space between the two positioning projections 41 in each roll of the protrusion group can be used as the fixing portion 42 to fix the winding 3 in the fixing portion 42. Therefore, the position of each of the windings 30 on the outer circumference of the shaft 4 is determined by the position of the 卩 42. Since this technical feature 'the outer axis 4 is F 袤 on the surface The gap size between the turns 3 〇 can be changed to 15 201021354, which contributes to the stabilization of the high frequency impedance of the winding 3. ^ In the present embodiment, the bobbin 4 in contact with the strands of the winding 30 The corner portions are surrounded. Therefore, it is possible to avoid the damage of the windings 3, and it is also possible to prevent the windings 30 from being separated by some portions of the bobbins 4. In this case, if the windings 30 are adjacent to each other, The gap between the strands becomes larger, and the influence of the proximity effect of the winding 3 and the high-frequency impedance can be reduced. As shown in Fig. 11, the fixing portion 42 is along the circumferential direction of the bobbin 4 and can be alternately arranged The first fixing portion 42a and the second fixing portion 42b are formed, wherein the second fixing portion 4 is iced The depth is smaller than the depth of the first fixing portion 42 & using such a configuration, it is possible to increase the distance "b" (b > a) between the adjacent shares of the winding 3〇. Thus, it is possible to reduce The proximity effect of the winding 3 and the influence of the high frequency impedance. (Fifth Embodiment) The contactless power supply system of the present embodiment discloses the basic structure of the contactless power supply system having the first embodiment. Common to the first embodiment, and designed by the same characteristics, the details are described herein. Referring to FIG. 12 and FIG. 13, the non-contact power supply system of the present embodiment includes a casing 500 which is made of synthetic resin. The molded product has insulating properties. The outer casing 500 includes a first outer casing portion 501 ' for receiving the core 2 and the winding 3 and a second outer casing portion 502 for the nano-resonance circuit 60 without the winding 3. The first outer casing portion 501 is formed to have a substantially c-shaped cross section to conform to the outer shape of the core 2. The second outer casing portion 5〇2 is formed to have a rectangular casing with a surface open. _ 16 201021354 - The resonant circuit 60 includes a rectangular substrate 61 disposed in the vicinity of the lower surface of the second outer casing portion 502, and parallel to the inner lower surface, each of the plurality of sub-substrates 62 is configured with one or more A capacitor c (two are shown in this embodiment)' is provided with a plurality of connectors 63 in the substrate 61 and the sub-substrate 62. A conductive pattern (not shown) is also formed on the surface of the substrate 61. An end point (not shown) of the winding 3 is pushed from the first outer casing portion 501 to the second outer casing portion 5〇2 and electrically connected to the conductive pattern. The size of the sub-substrate 62 is much smaller than the size of the substrate 615. A pair of the terminal pins 63b forms each of the above described garters 63 and protrudes from one end surface of each of the sub-substrates 62 (see Fig. i3A). Two capacitors c are mounted on the front surface of each of the sub-substrates 62, respectively. A conductive pattern (not shown) is used to interconnect the end points of the capacitor c and the end pins 63b and is formed on the back surface of each of the sub-substrates 62. A plurality of outer covers 63a are inlaid on the surface of the substrate 61, and the end pins 6 are respectively embedded in the outer cover. The outer cover 63a is also electrically connected to the windings 3 through the conductive patterns. In other words, the connector 63 includes a housing 63a and an end pin 63b. Winding 3 ❹ * Capacitor C is transmitted through n 63 峨 this connection due to the resonance circuit 60. Since such a connector 63 is well-known in the art, detailed description is omitted in the drawings. If the 咼-frequency current flows through the feed line 100 embedded in the core 2 through the opening 2a, a high-frequency magnetic field (or flux) concentric with the feed line 1 产生 is generated. Most of the magnetic flux flows through the core 2 along the wraparound aspect. When the magnetic flux changes with the high-frequency current, an induced electromotive force is generated in the winding, and the induced electromotive force generated in the 3 is thus included in the resonance of the resonant circuit 6〇 including the windings 3 and 17 201021354 amplification. The commonly recognized f-vibration circuit is converted into two types of fixed-electric motors by a fixed-power circuit and then supplied to the load. The β-type | | |, and directly on the substrate 61 as shown in Fig. i3c, the capacitance value of the capacitance c within 6 , requires the outer casing portion 502 to be taken out and then the capacitor removed. 3: tin, tin, and then the capacitor c is separated from the substrate 61, and the end of the electric valley C is connected to the substrate 61. Even, =, ❿ = electric light, listen to ^ money for the job == adjustment work is quite a dragon. (4) The reading of C is shown in Fig. 13B. In the present embodiment, the capacitor _ connection 1163 is carried on the substrate 61 or from ij/i. This makes the operation of adjusting the capacitance value of the capacitance c more second:::: This shows that the steps of the conventional resonant circuit 6G can be simplified as compared with the conventional architecture shown in Fig. 13C. The sub-substrate 62 and the end pins (4) can be "connected" to keep the sub-substrate 62 and the substrate 61 vertical. This provides the advantage of reducing the size of the substrate 61. The present invention has been disclosed in the above embodiments, but it is not intended to limit the knowledge of any one of ordinary skill in the art, and may be modified and retouched without departing from the spirit and scope of the first month. The scope of protection of the Ming Dynasty shall be subject to the definition of the scope of the patent application attached. 18 201021354 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a cross-sectional view showing a portion of a read/write unit of a non-contact power supply system in accordance with a first embodiment of the present invention. Figure 1B is a schematic view showing the magnetic flux passing through the core of the read/write unit shown. Figure ic shows the magnetic flux through the core of the conventional read/write unit, 2A and 1 2B, and the wire is the other plan view of the core of the read/write soap element in the non-power supply system. Figure 3A is a perspective view of the configuration of the overall contactless power supply system. Figures 3B and 3C illustrate cross-sectional views for use in the non-feed line. ‘禋Non-contact electricity: (3) A cross-sectional view of a main part of the supply system according to the second embodiment of the present invention.
絲之為另一實施例之圖4所示非接觸電源供應 統之主要部份的剖面圖。 统之Γι::為圖4之另一實施例所示非接觸電源供應 統之主要部伤的剖面圖。 供庫依照本發明第三實施例的-種非接觸電; 供應系統之主”份㈣面圖。 統之實___電源供應: 圖9、’會不為® 7之另—實施例所示非接觸電源供應j 19 201021354 統之主要部份的剖面圖。 圖10A繪示為依照本發明第四 電源供應系統之讀寫單元之部分切割㈣:。種非接觸 的剖=崎示為圖10A所示讀寫單元的線轴之主要部份 圖10C緣示為圖10A所示讀寫單元的線軸之透視圖。 圖11緣不為圖10B之另一實施例所示線轴之主要部 份的剖面圖。 ❹ 圖12繪示為依照本發明第五實施例的一種非接觸電 源供應系統之讀寫單元之主要部份的剖面圖。 圖13A和圖13B繪示為圖12所示之非接觸電源供應 系統之讀寫單元之主要部份的透視圖。 圖13C %示為傳統讀寫單元之主要部份的透視圖。 【主要元件符號說明】 1:讀寫單元 2 :核心 ❹ 2a :開口 3 :繞纟且 4 :線軸 5 Λ 5’、7 :磁性防護體 6 :溝槽 6:電源接收電路單元 2〇 :相對端部 21 :本體部 20 201021354 30 繞線 40 外部凸緣 41 定位突出物 42、42a、42b :固定部 50 :磁性防護蓋 60 :共振電路 61 :基板 62 :子基板 ® 63:連接器 63a :外罩 63b :端點接腳 100 :饋線 101、 10Γ :内管部 102、 102’：外管部 103、 103’ ：連接部 104、 104’ ：絕緣體 〇 110 :高頻電源供應器 111 :負載 200 :導電軌 500 :外殼 501 :第一外殼部 502:第二外殼部 a、b :間隙 C :電容The wire is a cross-sectional view of a main portion of the non-contact power supply system shown in Fig. 4 of another embodiment. Γ Γ:: is a cross-sectional view of the main part of the non-contact power supply system shown in another embodiment of Fig. 4. A non-contact electric power supply according to a third embodiment of the present invention; a main part (four) of the supply system. The actual supply ___ power supply: Fig. 9, 'will not be the other of the 7 - the embodiment FIG. 10A is a cross-sectional view showing the main part of the non-contact power supply j 19 201021354. FIG. 10A is a partial cut (four) of the read/write unit of the fourth power supply system according to the present invention: 10A is a perspective view of the spool of the read/write unit shown in Fig. 10A. Fig. 11 is not the main part of the spool shown in another embodiment of Fig. 10B. Figure 12 is a cross-sectional view showing the main part of a read/write unit of a contactless power supply system in accordance with a fifth embodiment of the present invention. Figs. 13A and 13B are diagrams shown in Fig. 12. A perspective view of the main part of the read/write unit of the contactless power supply system. Fig. 13C shows a perspective view of the main part of the conventional read/write unit. [Main component symbol description] 1: Read/write unit 2: Core ❹ 2a : Opening 3: winding and 4: bobbin 5 Λ 5', 7: magnetic shield 6: groove 6: electric Receiving circuit unit 2〇: opposite end portion 21: body portion 20 201021354 30 winding 40 outer flange 41 positioning projections 42, 42a, 42b: fixing portion 50: magnetic protective cover 60: resonant circuit 61: substrate 62: sub-substrate ® 63: Connector 63a: Housing 63b: End pin 100: Feeder 101, 10Γ: Inner tube portion 102, 102': Outer tube portion 103, 103': Connection portion 104, 104': Insulator 〇 110: High frequency Power supply 111: load 200: conductive rail 500: outer casing 501: first outer casing portion 502: second outer casing portion a, b: gap C: capacitance