200828720 九、發明說明： 【發明所屬之技術領域】 本發明為有關於非接觸供電裝置，亦即，本發明為有關 於根據電磁感應（electromagnetic inducti〇n)之互感 (mutual inductance)作用之非接觸供電裝置。例如，有 關於從外部以非接觸方式對電動汽車之電池進行充電之 非接觸供電裝置。 【先前技術】 *(技術之背景） 圖4之（1)圖是立體說明圖，用來說明此種先前技術例 • (Pri0r之非接觸供電裝置之基板原理。關於該基本 •原理為共同適用於先前技術例和本發明。 如該圖所示，根據電磁感應之互感作用，從丨次線圈 (primary c〇il)i對2次線圈2供給電力之非接觸供電裝 置3為先前技術所習知者，係使用在例如電動汽車之電池 鲁充電。 包/ 亦即’在非接觸供電裝置3,捲繞在！次磁心（magnetic c〇re)4之1次線圈丨’以非接觸方式被配置成面對捲繞在 2次磁心5之2次線圈2。然後，利用在}次線圈i之磁 通（magnetic flux)形成，在2次線圈2產生感應電動勢 (induced electromotive force)，藉以供給電力。 (先前技術之文獻資訊） 此種之非接觸供電裝置3之實例包含有例如不列之專 利文獻1、2、3所示者。 312XP/發明說明書(補件)/97-01/96136849 6 200828720 [專利文獻1 ]曰本專利第3630452號公報（曰本專利平 6-256505號公報） [專利文獻2] PCT國際公報第92/17929號 [專利文獻3] PCT國際公報第99/〇8359號 (先前技術） 圖3用來說明此種先前技術例，（丨）圖是丨次側之平面 亦即從上面看到之圖（2次側之平面圖亦同），（2)圖是i 次侧和2次侧之正面亦即從前面看到之圖，（3)圖是1次 侧和2次侧之侧面亦即從橫向看到之剖面圖。 首先，在此種之非接觸供電裝置3中，其丨次侧A和2 次側B成為對稱構造。另外，在此種先前技術例之非接觸 供包I置3中’ 1次侧A之1次磁心4和2次側B之2次 磁心5分別成為例如大致呈u字狀或大致E字狀之凹凸形 狀，並且分別有多個（a number 〇f)以指定之相互間隔被 配置在同一平面。另外，對該等之〗次磁心4和2次磁心 5’分別將1次線圈！和2次線圈2捲繞在其凹部間，而 使全體成為圖3之（1)圖之方式之方形或圓形。 然後’將此種之1對之1次側八和2次側Β配置成鳋由 空氣間隙C面對。然後，經由對i次線圈i進行激磁電流 (exC1ting current)之通電，用來形成磁通D，藉以 次線圈2產生感應電動勢。因此，電力從卜欠側供給到 2次側B，利用此種方式使連接到2次伽β r ^ 人侧Β之電池被充電。 【發明内容】 (發明所欲解決之問題） 312ΧΡ/發明說明書(補件)/97-01/96136849 7 200828720 然而，對於此種先前技術例之非接觸供電裝置3會有下 列之問題。 《第1問題》 第1 ’對於此種先前技術例之非接觸供電裝置3，最好 更進一層地效率化，亦即提高充電效率。 例如’在此種先前技術例中，因為使用凹凸形狀之1次 和2次之磁心4、5，所以磁通D分布成為如圖2之（3)圖 之正面說明圖所示。亦即，在此種先前技術例中，在供電 日π被配置成面對之1次側A和2次側B間之空氣間隙中 之磁通D，朝向磁極（magnetic p〇le)彎曲而成為集中地 、分佈。因此，在磁極之附近，磁通D密度（magnetic flux density)變成極高。因為空氣中之磁通D密度和其磁動勢 (magnetomotive force)成正比例，所以磁通d密度為高 密度之部分需要大的磁動勢。因此，其結果為對於〗次線 圈1變成需要更大之激磁電流，該部份大多成為焦耳熱損 鲁失，因此成為充電效率降低之一原因。 另外，充電效率降低之原因亦可歸咎於因渦電 current)之產生所造成焦耳熱（j0ule heat)損失。亦即， 對於捲繞成方形之1次線圈1或2次線圈2，在圖3之（1) 圖之垂直於紙面之方向，使所形成之交流磁通 (alternate)!)通過。因此，在其線圈之線間，因為會有 一種渦電流之迴路電流（loop current;s)L流動（參照後面 所述之圖2之（4)圖），所以會發生該部份之焦耳熱損失。 由於該2個之原因，此種先前技術例之非接觸供電裝置 312XP/發明說明書(補件)/97-01/96136849 8 200828720 其充電效率為86%程度，因此希望能夠更進一層地節 省能量。 《第2問題》 第2 ’對於此種先前技術例之非接觸供電裝置3，希望 能更大間隙化。 亦即，在此種先前技術例中，參照圖2之（3)圖，如上 述之方式，因為空氣間隙C中之磁通d密度變高，所以該 _ P伤舄要較大之激磁電流，因此會造成大的焦耳熱損失為 其缺點。與此相對地，在為提高使用之容易性，並使空氣 間隙C更進一步擴大時，造成需要更過大之激磁電流。 ^ 其結果是在磁通D密度較高之此種先前技術例中，空氣 '間隙C係以50l«m之程度為界限，而希望能大間隙化。 亦即’在供電時被配置成面對之1次側A和2次侧b， 其間之空氣間隙C越大，則供電用之定位操作越容易等， 而各易使用。與此相對地’在如同此種之先前技術例之小 隙者，當為供電用之設置時，需要考慮到i次侧人和2 次侧B間之衝突避免等，而操作成為麻煩。因此，最好大 間隙化和更進一層地提高使用之容易性。 《第3問題》 第3 ’對於此種先前技術例之非接觸供電裝置3，最好 更進一層地小型化和重量減輕化。 特別是對亦被稱為拾取器（pickUp)之2次侧b，例如針 皆作為小型公共Ά車等之電動汽車之電池充電用之經常 裝载在車輛者，最好能夠小型化和重量減輕化。與此相對 312XP/發明說明書(補件)/97-01/96136849 〇 200828720 地，此種先前技術例者，例如使其重量成為7〇Kg程度。 其一原因是在此種先前技術例中，使用有上述方式之凹 凸形狀之1次和2次之磁心4、5。如圖3之（2)圖，（3) ，中所示，該凹凸部份之厚度變厚，因此成為大型化和重 量增加之一原因。 另外，1次侧A之1次線圈〗和丨次磁心4等，2次側 B之2次線圈2和2次磁心5等，分別被散熱和定位固定 用之模製樹脂覆蓋和固定（參照後面所述之圖i之（2) 圖）。因此，該模製樹脂之重量之增加亦成為重量增加之 一原因。 《本發明》 本發明之非接觸供電裝置係針對此種之先前技術例之 問題，而成為用來解決上述先前技術例之問題者。 另外’本發明之目的是提案非接觸供電震置，用來實 現：第卜提高充電效率2，實現大間隙化，用來提 兩使用之容易性· ’和第3,實現小型化和重量減輕化。 C解決問題之手段） 《各個申請專利範圍項目》 丰^解決此種第1 '帛2和第3問題之本發明之技術性 1 又如下所述。對於中請㈣範圍第1項如下所述。 申請專利範圍第1項之 0 ^ ^ 員之非接觸供電裝置是根據電磁感 感作用來將電力從1次線圈供給到2次線圈之 :二另外’胃1次線圈和2次線圈分別由在同〆面捲繞 扁平之螺旋之構造所構成。與此同時，配設有該i次線 312XP/發明晒書(補件)/97-01/96136849 10 200828720 圈之磁心和配設有該2次線圈之磁心其特徵為分別成為 平板狀。 對於申請專利範圍第2項如下所述。申請專利範圍第2 項之非接觸供電裝置是在申請專利範圍第1項中，使該j 次線圈和該磁心之外表面，以及該2次線圈和該磁心之外 表面’分別被模製樹脂覆蓋且固定。其特徵為在該模製樹 脂中混入有發泡材料。 對於申凊專利範圍第3項如下所述。申請專利範圍第3 _項之非接觸供電裝置其特徵在於，在申請專利範圍第1項 中’使该1次線圈和2次線圈在電力供給時被配置成介由 ^空氣間隙互相面對，並且成為對稱之相同構造； 利用该1次線圈之磁通之形成，用來在該1次線圈和2 次線圈之間形成平行之磁路，在該2次線圈產生感應電動 勢’因而將電力從該1次線圈供給到2次線圈。 對於申請專利範圍第4項如下所述。申請專利範圍第4 ❿項之非接觸供電裝置其特徵在於，在申請專利範圍第3項 中，使該1次線圈和2次線圈分別捲繞多圈，成為以繞組 中心部作為圓形空間之螺旋狀，並且成為厚度較薄之扁平 狀。 對於申請專利範圍第5項如下所述。申請專利範圍第5 項之非接觸供電裝置其特徵在於，在申請專利範圍第4項 中’使該1次線圈和2次線圈分別以多根並行之平行導線 捲繞成螺旋。 對於申凊專利範圍第6項如下所述。申請專利範圍第6 312XP/發明說明書(補件)/97-〇1/96136849 11 200828720 項之非接觸供電褒置’其特徵在於，在申請專利範圍第5 項中，使該1次線圈* 2次線圈分別被設定成外後和内徑 之比成為大約2 : 1之程度。 對於申咕專利範圍第7項如下所述。申請專利範圍第7 項之非接觸供電農置其特徵在於，在申請專利範圍第5項 中，該1次線圈和2次線圈分別使捲繞之多根之平行導線 •維持扁平，並且錢中以—定間狀間隔餘轉為其特 • 徵。 •對於申請專利範圍第8項如下所述。申請專利範圍第8 項之非接觸供電褒置其特徵在於，在申請專利範圍第3項 -中’使該1次線圈連接到地上側之電源，該2次線圈連接 到車輛之電池。 《作用》 本發明之作用等如下列之（1)〜（9)所示。 (1) 在該非接觸供電裝置，當供電時，丨次側和2次侧 _被配置成互相面對，且在其間存在有空氣間隙。 (2) 另外，在1次線圈有激磁電流流動，因此經由形成 磁通，而在1次線圈和2次線圈間形成有磁路（magnetic path)，所以在2次線圈產生電動勢。 (3) 如該（2)項之方式，利用電磁感應之互感作用，將電 力從1次側供給到2次侧。 (4) 亦即，在該非接觸供電裝置，採用平板狀之磁心和 扁平螺旋狀之線圈之組合。因此在供電時，在空氣間隙 中，磁通成為平行、均勻且稀疏地分佈。因此，由於磁通 312XP/發明說明書(補件)/97-01/96136849 12 200828720 山度曼低所以可以使磁通形成用之磁動勢 (gnetomotive f〇rce)以及激磁電流變小，而焦耳熱損 失亦被減小。 (5)另外，當使線圈在途中以一定之間距被扭轉時，使 一種之渦電流之迴路電流之電動勢互相抵銷，因此可以減 小迴路電流及焦耳熱損失。 一⑻該非接觸供電裝置如上述之⑷項之方式，因為磁通 检度低’所以可以使磁動勢及激磁電流變小，因此空間間 隙可以在該部分設定成變大。 ⑺另外，對於被捲繞之線圈，當使外徑和内徑之比成 為2. 1之程度時’可以獲得㈣合係數，因此即使空氣 間隙變大’亦可以保持強力之電磁輕合(electr_gnet ic coupling) 〇 另外，該非接觸供電裝置因為採用平板狀之磁心和 兮：t線圈’所以1次侧和2次側之厚度均變薄，可以在 5亥4为小型化和重量減輕化。 #丨_1=外，重量減輕化之促進可以藉由在1次側和2次 側之极製樹脂中混入發泡材料。 果⑽亦即’本發明之非接觸供電裝置可以發揮下列之效 (發明效果） 《第1效果》 弟1，提高充電效率。亦，士& m m τ ^ Ρ本务明之非接觸供電裝置 口為知用平板狀之磁心和扁 ’十螺疑狀之線圈之組合，所 312ΧΡ/發明說明書(補件)/97-01/96136849 200828720 以，所形叙磁通密度變低^此，磁通形相之磁動勢 以，激磁電流可以變小，經由使焦耳熱損失亦減小等，用 來貫現兩效率化。 、 虽與上述之此種之先前技術例，亦即在凹凸形狀之磁心 捲繞線圈之先前技術例進行比較肖，因為磁通密度較低， 所以對於該部份，可以提高充電效率和達成節省能量。 《第2效果》 第2 ’實現大間隙化’提高使用容易性。亦即，本發明 之非接觸供電裝置藉由採用平板狀之磁心和扁平螺^狀 之線圈，藉以使空氣間隙中之磁通密度變低。 另外，因為磁通密度變低’為著提高使用之容易性，可 以將1次側和2次侧間之空氣間隙設定成更大。例如，當 與在凹凸形狀之磁心捲繞線圈之先前技術例進行比車: 時，因為磁通密度被疏化，所以在該部分可以將空氣 設定成變大。 _依照此種方式’因為實現大間隙化，所以當供電時在面 對位置之1次側和2次侧之間，定位操作變為容易，並且 亦使避免衝突之考慮減輕等，而提高使用之容易性。 《弟3效果》 弟3亦了以貝現小型化和重量減輕化。亦即，本發明 之非接觸供電裝置經由採用平板狀磁心和扁平線圈，;與 在凹凸形狀之磁心捲繞線圈之先前技術例進行比較時，可 以將厚度減半並且使重量減輕。另外，在散熱和定位固定 用之模衣樹月曰中’因為混入有發泡材料，所以亦可以減輕 312ΧΡ/發明說明書(補件)/97-〇ι/96136849 14 200828720 該部份之重量。 利用該2點，2次侧亦即拾取器之重量成為 技術例之一半程度。另外，斜 w :先則 ^ ^ ^ ^ 、十對私取器例如作為小型公妓 車或其他之電動汽車之電池充電用，經常被裝載：： 輕，此種小型化和重量減化之意義成為报重大。在車 如第1、第2、第 絲解決存在於此種之 先刖技術例之問題箄，* A卩口 a ^ 但心 I發明發揮之效果成為 大。 王 【實施方式】 《圖式》 以下根據用以實施圖式所示之發明之最佳形 細地說明本發明之非接觸供電裝置。 ‘ 孑 圖1，圖2用來說明實施本發明用之最佳形態。另外， 圖1之（1)圖是1次側之伞 r9 WI τ 人側之千面，亦即從上面看到之剖面圖 (2 -人侧之平面，亦即從 曰 丨攸上面看到之剖面圖亦同），（2)圖 疋1次側（2次側）之正面，亦 橫向看Wi面圖。面看到（側面’亦即 圖2之⑴圖是電磁耦合之正面，亦即從前面看到之(側 面，=即從橫向看到）之剖面說明圖，⑵圖是磁通分布之 正面說明圖，（4 )圖熹、、两帝治+丁，γ ,、 疋渦包，瓜之平面說明圖，（5)圖是扭轉 、、泉圈之平面說明圖。圖 ㈡4之（2)圖疋本發明之非接觸供電 衣置之適用例之方塊圖。 《非接觸供電裝置6之概要》 首先，參照圖2之⑴圖，圖4之⑵圖等，用來概略地 312ΧΡ/發明說明書(補件)/97-01/96136849 15 200828720 說明非接觸供電裝置6 在非接總也带仙Λ ，200828720 IX. Description of the Invention: [Technical Field] The present invention relates to a contactless power supply device, that is, the present invention relates to non-contact according to the mutual inductance of electromagnetic induction (electromagnetic induction) Power supply unit. For example, there is a contactless power supply device for charging a battery of an electric vehicle from the outside in a non-contact manner. [Prior Art] *(Technical Background) Fig. 4 (1) is a perspective explanatory view for explaining such a prior art example (the substrate principle of the non-contact power supply device of Pri0r. The basic principle is common to the principle) The prior art example and the present invention. As shown in the figure, the contactless power supply device 3 for supplying power to the secondary coil 2 from the primary coil according to the mutual inductance of the electromagnetic induction is known in the prior art. The creator is used to charge the battery in, for example, an electric vehicle. The package / that is, in the non-contact power supply device 3, is wound in the primary coil of the magnetic c〇re 4, in a non-contact manner. It is configured to face the secondary coil 2 wound around the secondary core 5. Then, it is formed by magnetic flux in the secondary coil i, and an induced electromotive force is generated in the secondary coil 2, thereby supplying (Electricity of the prior art) Examples of such a non-contact power supply device 3 include those disclosed in, for example, Patent Documents 1, 2, and 3, which are not listed. 312XP/Invention Manual (Repair)/97-01/96136849 6 200828720 [Patent Document 1] PCT Publication No. 92-17929 [Patent Document 2] PCT International Gazette No. 99/〇8359 (Prior Art) FIG. 3 To illustrate such a prior art example, the (丨) diagram is the plane on the lower side, that is, the view seen from above (the same as the plan view on the secondary side), and (2) the front side of the i-side and the second-order side. That is, the figure seen from the front, (3) is a cross-sectional view of the side of the primary side and the secondary side, that is, the horizontal direction. First, in the non-contact power supply device 3, the lower side The A and the secondary side B have a symmetrical structure. In the non-contact package I of the prior art example, the primary core 4 of the primary side A and the secondary core 5 of the secondary side B are respectively Each of the plurality of (a number 〇f) is arranged in the same plane at a predetermined interval from each other in a substantially U-shaped or substantially E-shaped uneven shape, and the secondary core 4 and the secondary core are also provided. 5', respectively, the primary coil! and the secondary coil 2 are wound between the recesses, and the whole is square or circular in the manner of the figure (1) of Fig. 3. Then 'The first-order side 8 and the second-side side 此种 are arranged such that they are faced by the air gap C. Then, by energizing the i-th coil i by an exciting current (exc1 ting current), a magnetic flux is formed. D, the induced electromotive force is generated by the secondary coil 2. Therefore, electric power is supplied from the underside to the secondary side B, and in this way, the battery connected to the secondary gamma βr^ side is charged. The problem to be solved by the invention) 312 ΧΡ / invention specification (supplement) / 97-01/96136849 7 200828720 However, the contactless power supply device 3 of this prior art example has the following problems. "First Problem" No. 1 is preferable to the contactless power supply device 3 of the prior art example, which is more efficient, that is, to improve the charging efficiency. For example, in the prior art example, since the magnetic cores 4 and 5 of the concavo-convex shape are used once and twice, the magnetic flux D distribution is as shown in the front explanatory view of Fig. 2 (3). That is, in this prior art example, the magnetic flux D in the air gap between the primary side A and the secondary side B which is disposed to face the power supply day π is curved toward the magnetic pole (magnetic p〇le) Become concentrated and distributed. Therefore, in the vicinity of the magnetic pole, the magnetic flux density becomes extremely high. Since the magnetic flux D density in the air is proportional to its magnetomotive force, a portion of the magnetic flux d density which is high in density requires a large magnetomotive force. Therefore, as a result, it becomes necessary for the secondary coil 1 to have a larger exciting current, and this portion is mostly a Joule heat loss, which is one of the reasons for the decrease in charging efficiency. In addition, the reason for the decrease in charging efficiency can also be attributed to the loss of Joule heat caused by the generation of eddy current. That is, for the primary coil 1 or the secondary coil 2 wound in a square shape, the formed alternating magnetic flux (!) is passed in the direction perpendicular to the plane of the drawing of Fig. 3 (1). Therefore, between the lines of the coils, since there is an eddy current loop current (s) L flowing (refer to FIG. 2 (4) shown later), the Joule heat of the portion occurs. loss. For the reason of the two, the contactless power supply device 312XP/invention specification (supplement)/97-01/96136849 8 200828720 of the prior art has a charging efficiency of 86%, and therefore it is desired to save energy further. . <<Second Problem>> 2nd It is desirable for the contactless power supply device 3 of the prior art example to have a larger gap. That is, in this prior art example, referring to FIG. 2 (3), as described above, since the magnetic flux d density in the air gap C becomes high, the _ P scar has a large exciting current. Therefore, it causes a large loss of Joule heat as its disadvantage. On the other hand, in order to improve the easiness of use and to further expand the air gap C, an excessively large exciting current is required. The result is that in the prior art example in which the magnetic flux D density is high, the air 'gap C is limited to a degree of 50 l «m, and it is desirable to have a large gap. That is, the first-order side A and the second-order side b which are disposed to face each other during power supply, and the larger the air gap C therebetween, the easier the positioning operation for power supply and the like, and each is easy to use. On the other hand, in the case of the small gap of the prior art example, when it is set for power supply, it is necessary to consider the collision avoidance between the i-side person and the second-order side B, and the operation becomes troublesome. Therefore, it is preferable to increase the ease of use with a large gap and a further layer. "Third Problem" No. 3 is preferable for the contactless power supply device 3 of the prior art example to be further miniaturized and reduced in weight. In particular, for the secondary side b, which is also called a pickUp, for example, the needle is often used as a vehicle for charging a battery of an electric vehicle such as a small public brake, and it is preferable to be small and lighter. Chemical. In contrast, 312XP/Invention Manual (Supplement)/97-01/96136849 〇 200828720, such a prior art example, for example, makes the weight to be about 7 〇Kg. One reason for this is that in this prior art example, the magnetic cores 4, 5 of the first and second times of the concave-convex shape of the above-described manner are used. As shown in Fig. 3 (2) and (3), the thickness of the uneven portion is increased, which is one of the reasons for the increase in size and the increase in weight. In addition, the primary coil of the primary side A and the secondary core 4, the secondary coil 2 of the secondary side B, the secondary core 5, and the like are covered and fixed by the molding resin for heat dissipation and positioning fixation (refer to Figure (2) of Figure i below. Therefore, the increase in the weight of the molded resin also becomes a cause of weight increase. <<The present invention>> The contactless power supply device of the present invention is directed to the problems of the prior art examples described above, and is intended to solve the problems of the prior art examples described above. In addition, the purpose of the present invention is to propose a non-contact power supply to achieve the following: to improve the charging efficiency 2, to achieve a large gap, to improve the ease of use and 'and the third, to achieve miniaturization and weight reduction. Chemical. C. Means for Solving the Problem) "Each Patent Application Scope Item" The technical 1 of the present invention for solving the first '2' and the third problem is as follows. For the middle item (4), the first item is as follows. The non-contact power supply device of the 0^^ member of the patent application scope is to supply electric power from the primary coil to the secondary coil according to the electromagnetic sensation: two additional 'stom 1 and 2 coils respectively It is composed of a structure in which a flat spiral is wound around the surface. At the same time, the core of the i-th line 312XP/inventive book (supplement)/97-01/96136849 10 200828720 and the core provided with the second-order coil are characterized in that they are in a flat shape. The second item of the patent application scope is as follows. The non-contact power supply device of claim 2 is in the first item of the patent application, the j-th coil and the outer surface of the core, and the secondary coil and the outer surface of the core are respectively molded with resin Covered and fixed. It is characterized in that a foamed material is mixed in the molded resin. The third item of the scope of the patent application is as follows. The contactless power supply device of the third aspect of the invention is characterized in that, in the first claim of the patent application, 'the primary coil and the secondary coil are arranged to face each other through the air gap when the power is supplied, And the same structure of symmetry; the formation of the magnetic flux of the primary coil is used to form a parallel magnetic circuit between the primary coil and the secondary coil, and an induced electromotive force is generated in the secondary coil, thereby generating electric power from This primary coil is supplied to the secondary coil. The fourth item of the patent application scope is as follows. A contactless power supply device according to the fourth aspect of the invention is characterized in that in the third item of the patent application, the primary coil and the secondary coil are respectively wound a plurality of turns, and the center portion of the winding is used as a circular space. It is spiral and becomes flat and thin. The fifth item of the patent application scope is as follows. The non-contact power supply device of claim 5, characterized in that in the fourth application of the patent application, the primary coil and the secondary coil are respectively wound into a spiral by a plurality of parallel parallel wires. The sixth item of the scope of the patent application is as follows. Patent application No. 6 312XP / Invention specification (supplement) / 97-〇1/96136849 11 200828720 The non-contact power supply device of the invention is characterized in that, in the fifth item of the patent application, the primary coil * 2 is made The secondary coils are each set such that the ratio of the outer rear to the inner diameter is about 2:1. The seventh item of the scope of the patent application is as follows. The non-contact power supply farm item of the seventh application patent is characterized in that in the fifth item of the patent application scope, the primary coil and the secondary coil respectively make the plurality of parallel wires wound up to be flat, and the money is in the middle. In the case of a fixed interval, it is a special sign. • For the scope of patent application, item 8 is as follows. The contactless power supply device of claim 8 is characterized in that, in the third item of the patent application, the primary coil is connected to the power source on the ground side, and the secondary coil is connected to the battery of the vehicle. <<Action>> The effects of the present invention are as shown in the following (1) to (9). (1) In the contactless power supply device, when power is supplied, the secondary side and the secondary side _ are arranged to face each other with an air gap therebetween. (2) Since the excitation current flows in the primary coil, a magnetic path is formed between the primary coil and the secondary coil by forming the magnetic flux. Therefore, an electromotive force is generated in the secondary coil. (3) In the manner of (2), the power is supplied from the primary side to the secondary side by the mutual induction of electromagnetic induction. (4) That is, in the non-contact power supply device, a combination of a flat core and a flat spiral coil is used. Therefore, during power supply, the magnetic flux is distributed in parallel, uniform, and sparsely in the air gap. Therefore, due to the magnetic flux 312XP/invention specification (supplement)/97-01/96136849 12 200828720, the magnetic potential (gnetomotive f〇rce) and the magnetizing current for magnetic flux formation can be made smaller, and Joule The heat loss is also reduced. (5) In addition, when the coil is twisted at a certain distance on the way, the electromotive force of the loop current of one eddy current is offset, so that the loop current and the Joule heat loss can be reduced. In the above-mentioned (4), the non-contact power supply device can reduce the magnetomotive force and the magnetizing current because the magnetic flux has a low degree, so that the space gap can be set to be large in this portion. (7) In addition, for the coil to be wound, when the ratio of the outer diameter to the inner diameter is made to be 2.1, the coefficient of (four) can be obtained, so that even if the air gap becomes large, a strong electromagnetic coupling can be maintained (electr_gnet) In the non-contact power supply device, since the flat core and the 兮:t coil are used, the thickness of the primary side and the secondary side is reduced, and the size and weight can be reduced at 5 hai. #丨_1= In addition, the weight reduction can be promoted by mixing the foamed material in the resin of the primary side and the secondary side. (10) That is, the non-contact power supply device of the present invention can exhibit the following effects (effect of the invention) "first effect", and improve the charging efficiency. Also, the & mm τ ^ Ρ 务 之 之 非 非 非 非 非 非 非 非 非 非 非 非 非 ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ ΧΡ 96136849 200828720 The magnetic flux density is reduced. Thus, the magnetomotive force of the magnetic flux phase can be made smaller, and the Joule heat loss is also reduced, so that the two efficiency is achieved. Although it is compared with the prior art example of the above, that is, the prior art example of the core-wound coil of the uneven shape, since the magnetic flux density is low, the charging efficiency and the saving can be improved for the portion. energy. "Second effect" The second 'realized large gap' improves the ease of use. That is, the contactless power supply device of the present invention uses a flat core and a flat screw to reduce the magnetic flux density in the air gap. Further, since the magnetic flux density is lowered, the air gap between the primary side and the secondary side can be set to be larger in order to improve the ease of use. For example, when compared with the prior art example in which the magnetic core winding coil of the uneven shape is used, since the magnetic flux density is thinned, the air can be set to become large in this portion. _In this way, because of the large gap, the positioning operation becomes easy between the primary side and the secondary side of the facing position when power is supplied, and the consideration of avoiding conflicts is also reduced, and the use is improved. Ease of use. "Dia 3 effect" Brother 3 also has a small size and weight reduction. That is, the contactless power supply device of the present invention can reduce the thickness by half and reduce the weight by using a flat core and a flat coil; when compared with the prior art example of winding the coil in the concave-convex shape. In addition, in the mold month of the heat dissipation and positioning fixing, the weight of the part can be reduced by the fact that the foamed material is mixed, so that the weight of the part can be reduced by 312 ΧΡ / invention manual (supplement) / 97-〇ι/96136849 14 200828720. With these two points, the weight of the secondary side, that is, the pickup, becomes one-half of the technical example. In addition, the oblique w: first ^ ^ ^ ^, ten pairs of private picker, for example, as a small bus or other electric vehicle battery charging, often loaded:: light, the significance of this miniaturization and weight reduction Become a major report. In the case of the car, such as the first, second, and second wires, the problem that exists in the prior art example is solved, and the effect of the invention is large. [Embodiment] The following describes the contactless power supply device of the present invention in accordance with the best mode for carrying out the invention shown in the drawings. ‘ 孑 Figure 1, Figure 2 is used to illustrate the best mode for carrying out the invention. In addition, (1) of Fig. 1 is the one side of the umbrella r9 WI τ on the one side, that is, the cross-sectional view seen from above (2 - the plane of the human side, that is, from the top of the raft The cross-sectional view is also the same), (2) the front side of the first side (second side) of the figure, and the Wi-side view is also seen horizontally. The side view (the side view, that is, the figure (1) of Fig. 2 is the front side of the electromagnetic coupling, that is, the cross-sectional explanatory view of the front side (the side surface, ie, the horizontal direction), and (2) the front side of the magnetic flux distribution. Figure, (4) Figure 熹,, two emperors + Ding, γ, 疋 疋 ,, melon plane explanatory diagram, (5) diagram is the torsion, the plane description of the spring circle. Figure (2) 4 (2) A block diagram of an application example of the contactless power supply device of the present invention. [Summary of the contactless power supply device 6] First, referring to FIG. 2 (1), FIG. 4 (2), and the like, for 312 ΧΡ / invention description ( Supplement) /97-01/96136849 15 200828720 Description The non-contact power supply unit 6 is also connected to the fairy.
發迗到2次線圈8係為習知公用者 另外如圖4之（2)圖之代表適用例所示，連接到外部Bun 2 to the coil 8 is a well-known public. Also as shown in the representative example of Figure 2 (2), connected to the outside
側G，在供電時， ，對於裝載在小 *之電動汽車或電車之受電侧亦即2次 介由未實體接觸之具有空隙之空間之空 —氣間隙C被配置成面對，而用來傳送電力。 2次侧G連接到例如裝載於車輛之電池1〇。在此處以經 充電之電池10進行供電，藉以用來驅動車輛之馬達u。 另外，符號12是供電用之通信控制裝置。 • 對於上述之電磁感應之互感作用，係如下列之記載。亦 即將1夂侧F之1次線圈7和2次側G之2次線圈8配 置成非接觸地面對。然後對丨次線圈7通電交流電作為激 磁電流，在其轴上產生與電流成正比例之磁場（magnetic field)，然後磁通1)在直角方向形成環狀。然後，以此方 式形成之變化之磁通D通過2次線圈8而鏈接，藉以用來 在2次線圈8產生電動勢。 依A?'此種方式’形成磁場丨c f ieId)，並利用磁 場發送電力之1次線圈7和2次線圈8之兩個電路，如圖 312XP/發明說明書(補件)/97-01/96136849 16 200828720 2之⑴圖所示，形成磁通D之磁路並進行電磁麵合。相 互間之麵合係數之高低，依照1次和2次之線圈7、8之 位置形狀、尺寸、空氣間隙c之距離尺寸，和磁 洩漏量等而變化。 非接觸供電裝置6之概要即成為此種方式。 《1次侧F和2次側G之構造》 ▲其次參照圖i、圖2之⑴圖，用來說明^欠❹^ -人侧G之對稱構造和内部構造。 首先非接觸供電裝置6’如圖2之⑴圖所示，盥先前 == 篆地，1次側〜2次側G在供電時成為上下相 4 Η冉之相同構造。亦即非接觸供電裝置6在i次侧f具 備有1次線圈7 ’ 1次磁心13，背板15，和蓋子16等： 侧G具備有2次線圈8 ’ 2次磁心14，背板15、，和 盖于16。 上欠側G在供電時，例如當被配置成 上：=對之情況時’成為上下對稱之相同構造。 :次側G分別從對稱面之内側朝向外侧，順序地配置蓋 子=次線圈7(2次線圈8)]次磁心13(2次磁 和背板15。 另外，1次侧F和2次側G之内部構造如下所述Μ二欠 :F之1次線圈7和1次磁心13之外部露出之全體外表 面，及2次線圈8和2次磁心14之外表面 由 樹脂17所覆蓋而固定。 、 亦即，在圖1之⑵圖所示之實例中次 312χρ/發明說明書(補件)/97-01/96136849 17 200828720 側G均是在背板15和蓋子Π之間充填有模製樹脂17。 另外，内部之1次和2次之線圈7、8，和！次和2次之 磁=13、14之外表面係由模製樹脂”所覆蓋而固定。 模製樹脂17由例如石夕樹脂製成。另外，模製樹脂 由使内部凝固，而分別斟】A 稽 叩刀別對1次和2次之線圈7、8進行定 位和固（而用來確保其機械強度，並且發揮散熱功能。 亦即1 -人和2次線圈7、8由於激磁電流之流動所產生 “、、耳熱之’X熱’疋利用模製樹脂17之熱傳導進行散埶， 藉以使其冷卻。 … 另外，在此種模製樹脂17中混入和埋入有發泡材料 18。發泡材料18可制例如發泡笨乙烯，或其他之發泡 塑膠製成，用來達成模製樹脂17之減量，並使重量減輕 化之目的。 在圖1之圖示例中，此種發泡材料18^在i次和2次 之線圈7、8之内侧和外側之周圍成為大小之圓環鳄狀。 另外，亦可以不依昭圖】 闰一 、圓1之圖不例，而使發泡材料18之 小片群混入到模製樹脂π中。 1次侧F和2次側G之構造即成為此種方式。 《1次和2次線圈7、8，和1次和2次磁心13、14》 其次’參關1、圖2絲說们次和2次線圈H 和1次和2次磁心13、14。 i次線圈7和2次線圈8分別成為使導線在同一面扁平 地捲繞成螺旋之構造。配設有i次線圈7和2次線圈“ 1次磁心13和2次磁心14分別成為平板狀。 312XP/發明說明書(補件)/97-01/96136849 18 200828720 下面對5亥等進行更詳細之說明。首先，1次和2次之磁 13 14，以鐵磁體製（ferrite)，固化砂鐵製，和其他 之鐵性材料製者為代表，以高磁導率（permeability)之強 磁性體（ferr〇magnetic material)構成，可以發揮磁通]) 之強力化功能和導引功能。亦即，1次磁心13和2次磁 ^ 14之功此疋增加丨次線圈7和2次線圈8之間之電感 畺 口而強化相互間之電磁耗合（electromagnetic coupling)，並且感應，收集所形成之磁通d，使其具有 方向性。 然後，該1次和2次磁心13和14，如圖i所示，分別 成為沒有凹凸之平坦之平板狀。因此，丨次磁心13和2 -人磁心14如圖2之⑵圖所示，在！次侧F和2次側G之 間’磁極不會分散和不均勻’全體成為均一化，因此所形 成之磁路之磁通D之分布成為平行且均勻。因此，成為可 以避免磁通D之不均勻和集中（與對於此種之先前技術例 之圖2之（3)圖比較對照）。 、與此對應地’ 1次和2次線圈7、8係在同一平面捲繞 成螺旋狀，因此成為圓形之扁平形狀。 亦即如圖1所示，1次和2次之線目7、8分別為減小 焦耳熱損失而使多根之導線成為並列化，並且使絕緣 行導線捲繞多圈’使繞組中心部成為圓空間Η和捲 旋狀。因此’ 1次線圈7和2次線圈8分別使全 圓 環凸緣狀、厚度較薄之騎狀。料，此種之丨次或^ 之線圈7、8分別被設置成接近對應之丨次或2次磁心^ 312ΧΡ/發明說明書(補件)/97-01/96136849 19 200828720 14之對稱前面側。在圖示之實例中，被設置成互相抵接。 另外，如圖1之⑴圖所示’對於以此方式捲繞之i次 和2次線圈7、8，使各個之外徑j和内徑κ之比設定成 大約2 Μ之程度。利用此種設定，使i次線圈了和2次 線圈8之間之搞合係數成為較高之值。此點則實驗可以 證實。因此’ 1次線圈7和2次線圈8間之電磁柄合，即 使例如兩者間之空氣間隙C變大，亦成為可以強力地保 持。 另外，以此方式捲繞之1次和2次線圈7、8分別以間 隔一定之間距即在途中被扭轉。亦即，對於被捲繞之丨次 和2次之線圈7、8,如圖2之（4)圖所示，在垂直紙面之 方向使交流磁通D(隨著與激磁電流之交流變化對應之變 化而形成交流變化之磁通D)通過時，在線圈線間感應出 一種渦電流之環狀之迴路電流L而進行流動，因此成為焦 耳熱損失之原因。 • 在此處，該1次和2次線圈7、8如圖2之(5)圖所示， 被捲繞之多根之線圈平行導線，分別維持扁平，並且在途 中以間隔一定之間距即被扭轉。亦即，在每一個扭轉位置 Μ，使m根之多根線圈線之相互間之位置關係，成為每次 變換1根，經由m次之扭轉而回到原來之位置關係，藉以 實施扭轉。扭轉位置Μ在每捲繞一周中由例如5〜β個之間 距所形成。 利用此種扭轉，因為使迴路電流L之電動勢互相抵銷， 所以迴路電流L以及焦耳熱損失可以大幅地減小。 312ΧΡ/發明說明書(補件)/97-01/96136849 20 200828720 1次和2次線圈7、8，以及}次和2次磁心⑴ 以此種方式形成。 p 《作用等》 本發明之非接觸供電裝置6依照以上所說明之方式構 成。其中’本發明之作用等如下列之（1M9)所示。 (1)在該非接觸供電裝置6, #供電時，具備有i次線 圈7和1次磁心13等之供電侧亦即卜欠侧卜寿口具備有2 次線圈8和2次磁心14等之受電側亦即2次側G，被配 置成互相面對’在其間並存在有空氣間隙〇 、⑵另外，在1次側F之】次線圈7，當被通電作為激 磁電流之交流電時’形成磁通D(參照圖2之⑴圖）。 並且在 所以在 利用電 因此、亥磁通D之磁路形成在）次側F之i次線圈7和 2次侧G之2次線圈8之間。利用所形成之磁路，i次線 圈7和2次線圈8在各個之電路間產生磁 兩者間形成磁場，因為使磁通D貫穿2次線圈8 2次線圈8產生電動勢。 (3)在該非接觸供電裝置6中，依照此種方式，… 磁感應之互感作用，將電力從卜欠㈣供給到2次侧^ 亦即電力從外部之電源9然後從與該電源9連接 侧F供給後，在2次側G取出之後，對與其連接之電池 10進行充電（參照圖4之（2)圖）。 ⑷然後’該非接觸供電裝置6成為下面所述之方式。 百先’在該非接觸供電裝置6採用平板狀之卜欠和2次之 磁心13、14 ’以及被捲繞成扁平螺旋之1次和2次之線 312XP/發明說明書(補件y97.01/96136849 21 200828720 圈7、8之組合。 在供電時被配置成面對之1次侧F和2次側G間之空氣 間隙c中之磁路，因為磁通D成為平行、均勻且稀疏 佈，所以磁通D密度變低（使圖2之（2)圖，和關於此種之 先前技術例之圖2之（3 )圖進行比較對照）。 空氣中之磁通D密度和形成該磁通d之磁動勢具有成正 比例之關係。因此，經由以此方式使磁通D密度變低可以 _使磁通D形成用之磁動勢以及激磁電流變小，所以電路之 焦耳熱損失在該部分可以減小。 例如，在形成相同密度之磁通D之情況時，本發明方 法，當與上述之此種之先前技術例比較時，可以大幅地減 -小磁動勢、激磁電流、和焦耳熱損失。 (5) 另外，該焦耳熱損失之減小方面，經由使該非接觸 :電裝置6之1次和2次之線圈7、8以一定之間距在與 —扭轉位置M被扭轉，可以更進—步地促進該減小（參照 _圖2之（5)圖）。 、 亦即，利用此種扭轉，對於為一種渦電流之迴路電流 =參照圖2之（4)圖），使其電動勢互相抵銷，因此，迴= 电/泉L以及焦耳熱損失被大幅地減小。 丨如根據此種之上述（4)和（5)項，該非接觸供電裝置 ’其充電效率當與上述之此種之先前技術例t咖比較 令’可以高效率化至92%程度。 (6) 另外，該非接觸供電裝置6因為採用平板狀之ι次 σ 2次之磁心13、14’和扁平螺旋狀之丨次和2次線圈了、 咖發明說明書(補件)/97·01/96136849 2? 200828720 8之組合，所以如上述之方式，磁通D之密度變低，因此 形成磁通D之磁動勢，以及激磁電流可以變小。 因此，可以將1次和2次線圈7和8間之空氣間隙c在 該部分之設定成變大。例如，在相同值之激磁電流之情況 日守，§與上述之此種之先前技術例比較，本發明可以將空 氣間隙C設定成更大。因此本發明，當與空氣間隙c為 5 Omm程度之此種之先前技術例比較時，可以使空氣間隙c 倍增成為100mm。 (7) 另外此點之實現是在捲繞成螺旋之該非接觸供電裝 置6之1次和2次線圈7、8，使外徑J和内徑κ之比成 為2 : 1之程度。 亦即，利用此種方式，因為在^次和2次線圈7、8間 可以獲得高耦合係數，所以即使使空氣間隙c變大亦可以 維持兩者間之強力之電磁耦合。 (8) 另外，該非接觸供電裝置6因為採用平板狀之}次 和2次磁心13、14和扁平之i次和2次之線圈7、8，所 以1次侧F和2次侧G均使其厚度E變薄，可以在該部分 小型化和重量減輕化（使圖丨之（2)圖’和關於此種之先前 技術例之圖3之（2)圖，（3)圖進行比較對照）。當與上述 之此種之先前技術例比較時，厚度E被減半。 (9) 另外，此種之非接觸供電裝置6之重量減輕化，經 由在1次侧F和2次侧G之模製樹脂17中混入發泡材料 18(參照圖1)，可以更進一步地促進。亦即，混入之發泡 材料18之部份，可以減少模製樹脂17之充填量，因此可 312XP/發明說明書(補件)/97-01/96136849 23 200828720 以更進一步地進行重量減輕化。 例如，根據此種之上述（8)和（9)項，該非接觸供電裝置 6,之2久侧β亦即拾取器之重量，相對於上述之此種之先 則技術例之7〇Kg程度，可以減半成為35Kg之程度。 《其他》 刀另外，根據圖示例之圖i、圖2、圖4之（2)圖等，而依 如以上之說明時，1次線圈7和2次線圈8均由在同一面 捲、丸成扁平之螺旋之構造構成。與此同時地，配設有此種 之1次線圈7和2次線圈8之丨次磁心13和2次磁心14, 刀別成為平板狀之構造。 仁疋，對於非接觸供電裝置6，亦可以不依照此種之線 圈和磁心之構造，而是考慮下面所述之構造。 亦即，只有1次線圈7或2次線圈8之任一方，例如只 使人線圈7(或2次線圈8)成為上述之在同—面捲繞成 扁平之螺旋之構造。與此同時地，只考慮使配置有該i次 =圈K或2次線圈8)之一方之丄次磁心13(或2次磁心 成為平板狀之構造。 在此種情況，未採用此種構造和構成之另外一方，可以 ，用上述之此種之切技術例之2次線圈2(或t次線圈 ，和成為凹凸形狀之2次磁心5(或i次磁心4)。在另 外一方亦可以使用其他之線圈和磁心。 此種構造例之代表性者有採用在同一平面捲繞成扁平 =螺旋之構造之1次線圈7和成為平板狀之構造之i次磁 ^ ，作為1次側之構造之非接觸供電裝置6。 12«V發明說明書(補件)/97·01/96136849 24 200828720 在此種情況’此種之丨次侧可以成立和適用於 2次側分開之構造。另夕卜對於此種之非接觸供電，、 其功能、作用、效果等準用根據圖示例等之上述之、’ 用依照此财式，可Μ慮使本發明之料之更廣泛地適 【圖式簡單說明】 圖1用來說明本發明之非接觸供電裝置之用以實施 明之最佳形態’（1)圖{ i次侧之平面亦即從上面看到之 剖面圖（2次侧之平面剖面圖），（2)圖是丨次側（2次側） 之正面亦即從前面看到（侧面亦即橫向看到）之剖面圖。 入圖2用來說明實施該發明之最佳形態，（1)圖是電磁耦 合之正面亦即從前面看到（侧面亦即從橫向看到）之剖面 說明圖，（2)圖是磁通分布之正面說明圖，（4)圖是渦電流 之平面說明圖，（5)圖是扭轉線圈之平面說明圖。另外（3) 圖是此種之先前技術例之磁通分布之正面說明圖。 圖3用來說明此種之先前技術例，（〗）圖是丨次側之平 面圖（2次側之平面圖），（2)圖是1次侧和2次側之正面 圖’（3)圖是1次側和2次側之侧面亦即從橫向看到之剖 面圖。 圖4用來說明非接觸供電裝置，（1)圖是基本原理之立 體說明圖，(2 )圖是適用例之方塊圖。 【主要元件符號說明】 1 1次線圈（先前技術例） 2 2次線圈（先前技術例） 312XP/發明說明書(補件)/97-01/96136849 25 200828720Side G, when power is supplied, for the space on the power receiving side of the electric vehicle or the electric car that is mounted on the small*, that is, the space-to-air gap C through which the space is not physically contacted is disposed to face, and is used to face Transfer power. The secondary side G is connected to, for example, a battery mounted on the vehicle. Here, the battery 10 is powered by the charged battery 10 for driving the motor u of the vehicle. Further, reference numeral 12 is a communication control device for power supply. • For the above-mentioned electromagnetic induction mutual inductance, it is as follows. It is also assumed that the primary coil 7 of the first side F and the secondary coil 8 of the secondary side G are arranged in a non-contact ground pair. Then, the secondary coil 7 is energized with alternating current as an exciting current, and a magnetic field proportional to the current is generated on the shaft, and then the magnetic flux 1) is formed in a ring shape at a right angle. Then, the magnetic flux D formed in this way is linked by the secondary coil 8, whereby an electromotive force is generated in the secondary coil 8. According to A? 'this way to form a magnetic field 丨cf ieId), and use the magnetic field to send power of the primary coil 7 and the secondary coil 8 of the two circuits, as shown in Figure 312XP / invention manual (supplement) / 97-01 / 96136849 16 200828720 2 (1), the magnetic circuit of magnetic flux D is formed and electromagnetically combined. The level of the mutual coupling coefficient varies depending on the position and size of the coils 7 and 8 of the primary and secondary times, the distance dimension of the air gap c, and the amount of magnetic leakage. The outline of the contactless power supply device 6 is such a mode. "Structure of the primary side F and the secondary side G" ▲ Next, referring to Fig. 1 and Fig. 2 (1), the symmetrical structure and internal structure of the human side G are explained. First, as shown in Fig. 2 (1), the non-contact power supply device 6' has the same structure as the upper and lower phase 4 when the primary side to the secondary side G are supplied with power in the previous == 篆 ground. That is, the non-contact power supply device 6 includes the primary coil 7' primary core 13, the back plate 15, and the cover 16 on the i-th side f: the side G is provided with the secondary coil 8' 2 times core 14, the back plate 15 ,, and cover at 16. When the upper underside G is supplied with power, for example, when it is configured as: The secondary side G is disposed from the inner side toward the outer side of the symmetry plane, and the cover = secondary coil 7 (secondary coil 8)] the secondary core 13 (secondary magnetic and back plate 15) are sequentially disposed. In addition, the primary side F and the secondary side are provided. The internal structure of G is as follows: the outer surface of the primary coil 7 of the F and the outer surface of the primary core 13 are exposed, and the outer surfaces of the secondary coil 8 and the secondary core 14 are covered by the resin 17 and fixed. That is, in the example shown in Figure 2 (2), the second 312 χ ρ / invention manual (supplement) / 97-01 / 96136849 17 200828720 side G is filled between the back plate 15 and the cover 有 molded Resin 17. In addition, the inner first and second coils 7, 8 and the second and second magnetic = 13 and 14 surfaces are covered by a molding resin and fixed. The molded resin 17 is, for example, In addition, the molded resin is made to solidify the inside, and the A and the second knives are positioned and solidified for the first and second times of the coils 7, 8 (to ensure the mechanical strength, and The heat dissipation function is utilized. That is, the 1-man and the second-order coils 7, 8 are generated by the flow of the exciting current, and the 'X heat' of the ear heat utilizes the heat of the molded resin 17 Conduction is carried out to dissipate it, thereby cooling it. Further, a foamed material 18 is mixed and embedded in the molded resin 17. The foamed material 18 can be made, for example, of foamed stupid ethylene or other foamed plastic. In order to achieve the reduction of the molding resin 17 and to reduce the weight. In the example of Fig. 1, the foamed material 18 is inside the coils 7, 8 of the i and 2 times and The outer circumference is a ring-shaped crocodile of a size. Alternatively, the pattern of the circle 1 is not exemplified, and the small group of the foamed material 18 is mixed into the molding resin π. And the structure of the secondary side G becomes this way. "1st and 2nd coils 7, 8 and 1 and 2 times of cores 13, 14" Next, 'Part 2, Figure 2, and 2 times The coil H and the primary and secondary cores 13 and 14. The primary coil 7 and the secondary coil 8 have a structure in which the wires are wound flat on the same surface in a spiral shape. The primary coil 7 and the secondary coil are provided. The primary core 13 and the secondary core 14 are respectively in the form of a flat plate. 312XP/Invention Manual (supplement)/97-01/96136849 18 200828720 The following is a more detailed description of 5Hai et al. First, the first and second magnetic 13 14 is made of ferrite, solidified sand iron, and other ferromagnetic materials, and is characterized by high magnetic permeability. The structure of (ferr〇magnetic material) can exert the stimulating function and the guiding function of the magnetic flux]), that is, the power of the primary core 13 and the secondary magnetic circuit 14 increases the secondary coil 7 and the secondary coil 8 The magnetic entanglement between the electrodes enhances the mutual electromagnetic coupling and senses the collected magnetic flux d to make it directional. Then, the primary and secondary cores 13 and 14, as shown in Fig. i, are flat plates having no unevenness, respectively. Therefore, the secondary cores 13 and 2 - the human core 14 are as shown in Fig. 2 (2), in! Between the secondary side F and the secondary side G, the magnetic poles are not dispersed and uneven, and the whole is uniform, so that the distribution of the magnetic flux D of the formed magnetic circuit becomes parallel and uniform. Therefore, it becomes possible to avoid the unevenness and concentration of the magnetic flux D (in comparison with the figure (3) of Fig. 2 of the prior art example of this kind). In response to this, the primary and secondary coils 7, 8 are wound in a spiral shape on the same plane, and thus have a circular flat shape. That is, as shown in FIG. 1, the first and second line items 7 and 8 respectively reduce the Joule heat loss to make the plurality of wires parallel, and the insulated row wires are wound multiple turns' to make the winding center portion Become a round space and roll. Therefore, the primary coil 7 and the secondary coil 8 have a full-circle ring shape and a thinner ride shape. The coils 7, 8 of this order are respectively arranged close to the symmetrical front side of the corresponding 丨 or 2 times core 312 ΧΡ / invention specification (supplement) / 97-01/96136849 19 200828720 14 . In the illustrated example, they are arranged to abut each other. Further, as shown in Fig. 1 (1), the ratio of the outer diameter j to the inner diameter κ of each of the i-order and the second-order coils 7, 8 wound in this manner is set to about 2 。. With this setting, the engagement coefficient between the i-coil and the second coil 8 becomes a higher value. This point can be confirmed by experiments. Therefore, the electromagnetic shank between the primary coil 7 and the secondary coil 8 can be strongly maintained even if, for example, the air gap C between the two is increased. Further, the primary and secondary coils 7, 8 wound in this manner are respectively twisted at a certain interval, that is, on the way. That is, for the wound turns and the secondary coils 7, 8 as shown in Fig. 2 (4), the alternating magnetic flux D is made in the direction of the vertical paper (corresponding to the alternating current with the exciting current) When the magnetic flux D) which forms the alternating current changes, the loop current L of the eddy current is induced between the coil wires and flows, which causes the Joule heat loss. • Here, the primary and secondary coils 7, 8 are as shown in Fig. 2 (5), and the plurality of coiled parallel wires are wound flat, respectively, and spaced apart by a certain distance on the way. Being reversed. In other words, at each of the torsion positions 位置, the positional relationship between the plurality of coil wires of m is changed one by one, and the original positional relationship is returned by m times of twisting, whereby the twisting is performed. The twist position 形成 is formed by, for example, 5 to β intervals in each winding cycle. With such a twist, since the electromotive forces of the loop current L are offset each other, the loop current L and the Joule heat loss can be greatly reduced. 312ΧΡ/Invention Manual (Replenishment)/97-01/96136849 20 200828720 The primary and secondary coils 7, 8 and the secondary and secondary cores (1) are formed in this manner. p "Action, etc." The contactless power supply device 6 of the present invention is constructed in the manner described above. Wherein the action of the present invention is as shown in the following (1M9). (1) In the non-contact power supply device 6, when the power is supplied, the power supply side including the i-th coil 7 and the primary core 13 is also provided with the secondary coil 8 and the secondary core 14 and the like. The power receiving side, that is, the secondary side G, is arranged to face each other 'the air gap 〇 between them, (2) and the secondary coil 7 on the primary side F, when the alternating current is energized as the alternating current of the exciting current Magnetic flux D (refer to (1) of Fig. 2). Further, therefore, the magnetic path of the magnetic flux D is formed between the i-th coil 7 of the secondary side F and the secondary coil 8 of the secondary side G. With the magnetic circuit formed, the i-th order coil 7 and the secondary coil 8 form a magnetic field between the respective circuits, because the magnetic flux D passes through the secondary coil 8 and the secondary coil 8 generates an electromotive force. (3) In the contactless power supply device 6, in accordance with this mode, the mutual inductance of the magnetic induction supplies power from the owe (four) to the secondary side, that is, the power from the external power source 9 and then from the side connected to the power source 9. After the supply of F, after the second-side G is taken out, the battery 10 connected thereto is charged (see FIG. 4 (2)). (4) Then, the non-contact power supply device 6 is in the manner described below. Hundreds of 'in the non-contact power supply device 6 use a flat shape and two cores 13, 14 ' and a wire that is wound into a flat spiral 1 and 2 times 312XP / invention manual (supplement y97.01 / 96136849 21 200828720 Combination of rings 7, 8. The magnetic circuit in the air gap c between the primary side F and the secondary side G is arranged to face the power supply, because the magnetic flux D becomes parallel, uniform and sparse. Therefore, the magnetic flux D density becomes low (comparing the graph of (2) of Fig. 2 with the graph of (3) of Fig. 2 of the prior art example). The magnetic flux D density in the air and the formation of the magnetic flux The magnetomotive force of d has a proportional relationship. Therefore, by making the magnetic flux D density low in this way, the magnetomotive force and the exciting current for forming the magnetic flux D can be made small, so the Joule heat loss of the circuit is The portion can be reduced. For example, in the case of forming the magnetic flux D of the same density, the method of the present invention can greatly reduce the small magnetomotive force, the exciting current, and, when compared with the prior art example described above. Joule heat loss. (5) In addition, the Joule heat loss is reduced by Non-contact: the coils 7 and 8 of the first and second times of the electric device 6 are twisted at a certain distance between the torsion positions M, and the reduction can be further promoted (refer to Fig. 2 (5) That is, with such a twist, for a loop current of an eddy current = refer to FIG. 2 (4), the electromotive force is offset by each other, and therefore, the back = electric / spring L and Joule heat loss are Drastically reduced. For example, according to the above items (4) and (5), the charging efficiency of the non-contact power supply device can be as high as 92% when compared with the above-described prior art. (6) In addition, the non-contact power supply device 6 uses a flat-shaped magnetic core 13, 14' and a flat spiral and a secondary coil, and the invention manual (supplement) / 97·01 /96136849 2? 200828720 8 combination, so as described above, the density of the magnetic flux D becomes low, so that the magnetomotive force of the magnetic flux D is formed, and the exciting current can be made small. Therefore, the air gap c between the primary and secondary coils 7 and 8 can be set to be large in this portion. For example, in the case of the excitation current of the same value, the present invention can set the air gap C to be larger as compared with the prior art example described above. Therefore, in the present invention, when compared with the prior art example in which the air gap c is about 5 mm, the air gap c can be multiplied to 100 mm. (7) Further, this is achieved by the first and second coils 7, 8 of the non-contact power supply unit 6 wound in a spiral so that the ratio of the outer diameter J to the inner diameter κ is 2:1. That is, in this manner, since a high coupling coefficient can be obtained between the secondary and secondary coils 7, 8, even if the air gap c is made large, strong electromagnetic coupling between the two can be maintained. (8) In addition, since the non-contact power supply device 6 uses the flat-shaped and second-order magnetic cores 13, 14 and the flat i-time and second-order coils 7, 8, the primary side F and the secondary side G are both made. The thickness E thereof is thinned, and the miniaturization and weight reduction of the portion can be compared (the graph (2) of Fig. 2 and the graph of (2) and (3) of Fig. 3 of the prior art example) are compared. ). When compared with the prior art example described above, the thickness E is halved. (9) In addition, the weight of the contactless power supply device 6 is reduced, and the foamed material 18 (see FIG. 1) is mixed in the molding resin 17 of the primary side F and the secondary side G, and the pressure can be further increased. promote. That is, the portion of the foamed material 18 to be mixed can reduce the amount of the molding resin 17 to be filled, and thus the weight reduction can be further performed by 312XP/Invention Manual (Supplement)/97-01/96136849 23 200828720. For example, according to the above items (8) and (9), the length of the long side β of the contactless power supply device 6, that is, the weight of the pickup, is 7 〇Kg with respect to the above-described prior art example. Can be reduced to half the level of 35Kg. In addition, according to the figure i, Fig. 2, Fig. 4 (2), etc. of the figure example, as described above, the primary coil 7 and the secondary coil 8 are all wound on the same surface. The structure of the flat spiral of the pellet is formed. At the same time, the primary core 7 and the secondary core 13 of the secondary coil 7 and the secondary coil 8 are disposed, and the blade has a flat plate shape. In the case of the contactless power supply device 6, the configuration of the coil and the core may be omitted, but the configuration described below may be considered. That is, only one of the primary coil 7 or the secondary coil 8 is provided, for example, only the human coil 7 (or the secondary coil 8) is formed into a structure in which the same surface is wound into a flat spiral. At the same time, only the sub-core 13 in which one of the i-times = circle K or the second-order coil 8) is disposed (or the secondary core is formed into a flat plate shape). In this case, such a configuration is not employed. In the other of the above-described configurations, the secondary coil 2 (or the t-coil and the secondary core 5 (or the secondary core 4) having the uneven shape may be used. Other coils and cores are used. Representative examples of such a configuration include a primary coil 7 having a flat-wound structure wound in the same plane and a secondary magnet having a flat plate structure as the primary side. Non-contact power supply unit 6 constructed. 12 «V invention manual (supplement) / 97·01/96136849 24 200828720 In this case, the latter side can be established and applied to the structure of the secondary side separation. For such non-contact power supply, its functions, functions, effects, etc. are based on the above-mentioned examples, etc., and it is considered that the materials of the present invention are more widely adapted according to the financial formula. Brief Description of the Drawings Figure 1 is used to illustrate the use of the contactless power supply device of the present invention. The best form of the Ming '(1) Figure { i-side plane is the section view seen from above (the plane view of the 2nd side), (2) is the front side of the second side (2nd side) That is, a cross-sectional view of the side (that is, the lateral view) is seen from the front. Figure 2 is a view for explaining the best mode for carrying out the invention, and (1) is the front side of the electromagnetic coupling, that is, from the front (the side is also (2) is a cross-sectional explanatory view of the magnetic flux distribution, (4) is a plan explanatory view of the eddy current, and (5) is a plan explanatory view of the torsion coil. The figure is a front explanatory view of the magnetic flux distribution of the prior art example of this. Fig. 3 is a diagram for explaining the prior art example of this, and the (?) diagram is a plan view of the second side (a plan view of the secondary side), (2) The figure is the front view of the primary side and the secondary side. '(3) is the side view of the side of the primary side and the secondary side, that is, the cross-sectional view seen from the lateral direction. Figure 4 is used to illustrate the non-contact power supply device, (1) The figure is a three-dimensional explanatory diagram of the basic principle, and (2) the figure is a block diagram of the applicable example. [Main component symbol description] 1 1st coil (previous technique) Case) 2 2 coils (previous technical example) 312XP / invention manual (supplement) /97-01/96136849 25 200828720
3 非接觸供電裝置（先前技術例） 4 1次磁心（先前技術例） 5 2次磁心（先前技術例） 6 非接觸供電裝置（本發明） 7 1次線圈（本發明） 8 2次線圈（本發明） 9 電源 10 電地 11 馬達 12 通信控制裝置 13 1次磁心（本發明） 14 2次磁心（本發明） 15 背板 16 蓋子 17 模製樹脂 18 發泡材料 A 1次侧（先前技術例） B 2次侧（先前技術例） C 空氣間隙 D 磁通 E 厚度 F 1次侧（本發明） G 2次側（本發明） Η 圓形空間 312XP/發明說明書(補件)/97-01/96136849 26 2008287203 Non-contact power supply device (Prior Art example) 4 1st core (previous technical example) 5 2nd core (previous technical example) 6 Non-contact power supply device (present invention) 7 1st coil (invention) 8 2nd coil ( The present invention) 9 power supply 10 electric ground 11 motor 12 communication control device 13 primary core (invention) 14 secondary core (invention) 15 back plate 16 cover 17 molded resin 18 foamed material A 1 side (previous technique Example) B 2nd side (previous technical example) C Air gap D Magnetic flux E Thickness F 1st side (present invention) G 2 secondary side (present invention) 圆形 Circular space 312XP / invention manual (supplement) / 97- 01/96136849 26 200828720
J 外徑 K 内徑 L 迴路電流 Μ 扭轉位置 312XP/發明說明書(補件)/97-01/96136849 27J Outer diameter K Inner diameter L Loop current Μ Torsion position 312XP/Invention manual (supplement)/97-01/96136849 27