1237939 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於使用在工作機械或搬運裝置的產業用直 動機’尤其關於將作爲線性馬達電樞的成形線圈之兩個平形 中空線圈並設而成的二層扁平形中空線圈及其製造方法。 【先前技術】 第5圖是顯示線性馬達的構成之正面剖面圖。 在第5圖之中，1是線性馬達的電樞，2是線性馬達 的定子，3是成形線圈，4是永久磁鐵，6是心形管 (cored bar) ，7是環氧樹脂。 如從圖式可知，線性馬達的電樞1是朝左右移動在線 性馬達的定子2之相對向的永久磁鐵4的空隙間之物，該 電樞1是在心形管6的上下面接著成形線圈3，以環氧樹 月旨7造模而成之物。 該成形線圈3是謀求小型輕量化，爲了線圈的高疊層 化，所以將扁平形的第一線圈8及扁平形的第二線圈9並 設而形成二層扁平形中空線圈。於是由平角銅線的第一層 線圈及與此朝反方向捲繞並設的第二層線圈所組成的平角 線二重纒捲的捲線方法是至今爲止已知道有幾種（例如’ 參照專利文獻1〜3 )。 [專利文獻1]日本特開昭62 - 2 605 3 5號公報 [專利文獻2 ]日本特開平5 - 2 4 3 0 3 6號公報 [專利文獻3]日本特開平8 - 3] 76]0號公報 第6圖是將該扁平形的第一線圈8及扁平形的第二線 -4- 1237939 (2) 圈9並設形成之以往的二層扁平形中空線圈的立體圖。 在第6圖之中，3是成形線圈，8是第一線圈、9是 第二線圈，1 〇是加熱型自我熔接平角銅線，1 2是線圈中 空部。 在以往的二層扁平形中空線圈是以加熱型自我熔接平 角銅線1 〇製作弟6圖的成形線圈3時，第一線圈8及第 二線圈9的線圈側面彼此接觸而互相地造成損傷。 第7圖是說明線圈側面彼此相接觸的情況之狀態的 圖，顯示起因於以往的加熱所造成之二次加工後的線圈之 變形。（a )是變形後的線圈的立體圖，（b )是線圈的側 面圖，（c )是將（b )的線圈之一部份剖面且誇大所示的 放大圖。 與第7 ( b )圖的第一線圈8鄰接於此的第二線圈9 的線圈側面1 ]彼此是一旦如第7 ( c )圖損傷的話，絕緣 皮膜會剝離’而且第一線圈8與第二線圈9會電性地短路 (shot) 〇 另外，在線性馬達的電樞1之製作時，一旦以環氧樹 月旨7將整體造模的話，在二次加熱下加熱型自我熔接平角 銅線]〇的接著力會變弱，如第6圖之附有矩形中空部的 成形線圈3會如第7 ( a )圖膨脹變形，外側膨脹變形部 2 ]及內側膨脹變形部2 2會產生而在此時的應力作用下在 環氧樹脂7 (第5圖）的樹脂模上會產生裂痕。 【發明內容】 本發明的目的是在於提供爲了解決上述缺點而開發完 -5- (3) 1237939 成者’謀求線圈之電性絕緣性的提高及防止起因於加熱所 造成的熱變形，因此使第一線圈及第二線圈不會短路，另 外即使線性馬達電樞之製作時的二次加熱也不使加熱型自 我熔接平角銅線的接著力變弱，在環氧樹脂7的樹脂模上 不會產生裂痕的扁平形中空線圈及其製造方法。 爲了解決上述問題，申請專利範圍第1項記載的扁平 形中空線圈的發明是具備有平角銅線所捲繞的第一線圈及 與該第一線圈朝反方向之平角銅線所捲繞的第二線圈，在 使上述第一線圈及上述第二線圈電性地連接的扁平形中空 線圈之中，將絕緣薄膜介插於上述第一線圈及上述第二線 圈之間爲其特徵。 藉由作成如此的構成，因爲將絕緣薄膜介插於上述第 一線圈及上述第二線圈之間，所以沒有由於互相接觸所造 成的損傷，第一線圈及第二線圈就不會短路。因此，在環 氧樹脂的樹脂模上也不會產生裂痕。 申請專利範圍第2項記載的扁平形中空線圈的製造方 法的發明是具備有平角銅線所捲繞的第一線圈及與該第一 線圈朝反方向之平角銅線所捲繞的第二線圈，在將該第一 線圈及該第二線圈電性地連接後的扁平形中空線圈之中， 將以同樣材料構成上述第一線圈及上述第二線圈的平角銅 線連續性且在上述第一線圈及上述第二線圈之間空開空隙 而纏捲，在該空隙間介插絕緣薄膜爲其特徵。 藉由作成如此的構成，使第一線圈及第二線圈不會短 路，形成可簡單地製造在環氧樹脂的樹脂模上也不會產生 -6 - (4) 1237939 裂痕的扁平形中空線圈的方式。 申請專利範圍第3項記載的發明是在申請專利範圍第 2項記載的扁平形中空線圈的製造方法之中，在上述絕緣 薄膜的外周塗佈熱硬化性接著劑爲其特徵。 藉由作成如此的構成，形成可簡單地製造即使線性馬 達電樞之製作時的二次加熱也不使加熱型自我熔接平角銅 線的接著力變弱的扁平形中空線圈的方式。1237939 (1) 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to an industrial direct drive used in a work machine or a conveying device, and in particular, to two flat hollow coils which are to be shaped coils of a linear motor armature. The formed two-layer flat hollow coil and its manufacturing method. [Prior Art] FIG. 5 is a front cross-sectional view showing the configuration of a linear motor. In Fig. 5, 1 is an armature of a linear motor, 2 is a stator of the linear motor, 3 is a formed coil, 4 is a permanent magnet, 6 is a cored bar, and 7 is an epoxy resin. As can be seen from the figure, the armature 1 of the linear motor moves between left and right of the gap between the permanent magnets 4 of the stator 2 of the linear motor to the left and right. 3. Modeled with epoxy tree month purpose 7. In order to reduce the size and weight of the formed coil 3, in order to increase the stack height of the coil, a flat first coil 8 and a flat second coil 9 are juxtaposed to form a two-layer flat hollow coil. Therefore, there are several known winding methods of the flat-angle double-rolled coil composed of the first-layer coil of the flat-angle copper wire and the second-layer coil wound in the opposite direction. For example, 'refer to patent Documents 1 to 3). [Patent Document 1] Japanese Patent Laid-Open No. 62-2 605 3 5 [Patent Document 2] Japanese Patent Laid-Open No. 5-2 4 3 0 3 6 [Patent Document 3] Japanese Patent Laid-Open No. 8-3] 76] 0 FIG. 6 of the gazette is a perspective view of a conventional two-layer flat hollow coil formed by arranging the flat first coil 8 and the flat second wire -4- 1237939 (2) coil 9 in parallel. In Fig. 6, 3 is a formed coil, 8 is a first coil, 9 is a second coil, 10 is a heating type self-welding flat-angle copper wire, and 12 is a hollow portion of the coil. In the conventional two-layer flat-shaped hollow coil, when heating-type self-welding rectangular copper wire 10 was used to fabricate the molded coil 3 of Fig. 6, the coil sides of the first coil 8 and the second coil 9 contacted each other and caused damage to each other. Fig. 7 is a diagram illustrating a state where the side surfaces of the coils are in contact with each other, and shows the deformation of the coils after the secondary processing caused by the conventional heating. (A) is a perspective view of the deformed coil, (b) is a side view of the coil, and (c) is an enlarged view showing a part of the coil of (b) in an enlarged section. The coil side 1 of the second coil 9 adjacent to the first coil 8 of FIG. 7 (b) is adjacent to each other once the insulation film is damaged as shown in FIG. 7 (c). The two coils 9 will be electrically shorted. 〇 In addition, during the production of the armature 1 of the linear motor, once the entire mold is made of epoxy resin 7, the heating type self-welding flat angle copper will be heated under secondary heating线] 〇 The bonding force will weaken, as shown in Figure 6 with a rectangular hollow part of the forming coil 3 will expand and deform as shown in Figure 7 (a), the outer expansion and deformation section 2] and the inner expansion and deformation section 22 will occur Under the stress at this time, cracks may occur in the resin mold of the epoxy resin 7 (Fig. 5). [Summary of the Invention] The object of the present invention is to provide a solution for solving the above-mentioned disadvantages. -5- (3) 1237939 Achievement seeks to improve the electrical insulation of the coil and prevent thermal deformation caused by heating. The first coil and the second coil will not be short-circuited, and even the secondary heating during the production of the linear motor armature will not weaken the bonding force of the heating type self-welding flat angle copper wire. Flat-shaped hollow coils with cracks and methods of manufacturing the same. In order to solve the above-mentioned problem, the invention of the flat hollow coil described in item 1 of the scope of patent application includes a first coil wound with a rectangular copper wire and a first coil wound with a rectangular copper wire opposite to the first coil. The two coils are characterized in that an insulating film is interposed between the first coil and the second coil in a flat hollow coil that electrically connects the first coil and the second coil. With such a configuration, since the insulating film is interposed between the first coil and the second coil, the first coil and the second coil are not short-circuited without being damaged due to contact with each other. Therefore, no crack is generated in the epoxy resin mold. The invention of the manufacturing method of the flat hollow coil described in the second patent application scope includes a first coil wound with a flat-angle copper wire and a second coil wound with a flat-angle copper wire opposite to the first coil. Among the flat hollow coils after the first coil and the second coil are electrically connected, the rectangular copper wires of the first coil and the second coil are made of the same material and are continuous at the first The coil and the second coil are wound with a gap left between them, and an insulating film is interposed between the gaps. With such a structure, the first coil and the second coil are not short-circuited, and a flat hollow coil that can be easily manufactured in an epoxy resin mold without generating a -6-(4) 1237939 crack is formed. the way. The invention described in claim 3 is a method for manufacturing a flat hollow coil described in claim 2 in which the outer periphery of the insulating film is coated with a thermosetting adhesive. By having such a structure, a flat hollow coil can be simply manufactured that does not weaken the bonding force of the heating type self-welding flat-angle copper wire even if the secondary heating during the production of the linear motor armature is weakened.
如以上所述，本發明是在第一線圈及第二線圈的空 隙，藉由插入將熱硬化性接著劑塗佈在兩面的絕緣薄膜， 來使線圈的電性絕緣性提高，而且可防止起因於線圈之二 次加熱所造成的變形。 【實施方式】 以下，根據第1圖〜第4圖詳細地說明關於本發明的 實施方式。As described above, the present invention improves the electrical insulation of the coil by inserting an insulating film that is coated with a thermosetting adhesive on both sides in the gap between the first coil and the second coil, and prevents the cause of the coil. Deformation caused by secondary heating of the coil. [Embodiment] Hereinafter, embodiments of the present invention will be described in detail with reference to Figs. 1 to 4.
第1圖是說明平角線一重纏捲線圈的捲線例之圖，顯 示從纏捲開始（a )到纏捲完成（d )之圖，第2圖是顯示 本發明的平角線二重纏捲線圈的製造方法的說明圖，第3 圖是顯示藉由第2圖的方法而獲得的平角線二重纏捲線圈 之圖，（a )是線圈的立體圖，（b )是將線圈的一部份剖 面，而且誇大所示的放大圖’第4圖是顯示使用本發明的 電性絕緣紙之一實施例的圖’（a )是正面圖，（b )是側 面剖面圖。 在第]圖之中，5 0是該纏繞裝置的整體，5 ]是將捲 -7- (5) 1237939 線纒繞的捲線治具’將旋轉軸5 1 a當作中心以角速度μ 1 朝預定方向（在圖上是反時針方向）自轉。52是將遊星 捲筒（planet reel ) ，5 2 a是將捲線治具5丨的旋轉軸5 ! a 當作中心以角速度2 ω ]公轉的遊星軸，此處可旋轉可能 地安裝有遊星捲筒5 2。5 3是將平角線捲繞而成的圓筒 (drum )，將該旋轉軸 53a當作中心自轉。54是平角 線。 接著’說明該平角線二重纏捲的纏繞方法。 在纏捲開始的（a )之中，預先對捲線將作爲必要的 平角線5 4之長度的一半從圓筒5 3纏繞在遊星捲筒5 2。 另外另一方的平角線是不切斷地殘留在圓筒5 3的樣態下 使捲線治具5 1的下方通過。然後對平角線5 4 —面施予張 力，一面將旋轉軸5 I a當作中心以角速度ω〗來將捲線治 具5 1朝反時針方向開始旋轉。與此同時地使遊星捲筒5 2 以角速度2 ]朝反時針方向公轉。 第](b )圖是顯示從第](a )圖的狀態使捲線治眞 5 ]旋轉了 90度、使遊星捲筒52旋轉了 ] 80度的狀態。 由於遊星捲筒5 2是以捲線治具5〗的角速度之兩倍的角_ 度來公轉，因此在捲線治具5 ]之上形成有半周分的一層 捲線5 6。 第I ( c )圖是顯示從第](b )圖的狀態再使捲線冶 具5 1旋轉了 9 0度、使遊星捲筒5 2旋轉了] 8 〇度的狀 態。由於遊星捲筒5 2是以捲線治具5 ]的角速度之兩倍的 角速度來公轉，因此在捲線治具5 ]之上形成有一周分的 -8- 1237939 (6) 一層捲線5 6。 第1 ( d )圖是顯示從第1 ( c )圖的狀態再使捲線治 具5丨多數次自轉、使遊星捲筒52同樣數次公轉之後的完 成狀態。由於遊星捲筒52是以捲線治具5 ]的角速度之兩 倍的角速度來公轉，因此在捲線治具5 1之上形成有多數 /人捲繞的平角線捲線5 6、及同樣多數次捲繞的平角線捲 線5 7。此後，拔取捲線治具5 1的話就可製作成利用平角 線的中空二重捲線（也稱爲α纏繞）。 而且’如果1圖將線圈纏繞之間，如第2 ( a )圖， 當將加熱型自我熔接平角銅線1 〇以加熱器I 6 —面加熱， 一面進行接著時就可防止散亂。 此時，依照本發明，在第2 ( a )圖的第一平角線捲 線8及第二平角線捲線9之間設置0.3〜0.5 m m的線圈間 空隙5爲其特徵。 然後，如第2 ( b )圖將切半的電性絕緣紙〗7由上下 方插入於平角線捲線5 6及平角線捲線5 7之間所作成的線 圈間空隙5，使第一線圈8朝圖的箭號A方向滑動’另外 使第二線圈9朝圖的箭號B方向滑動，將空隙掩埋。 接著，一旦將捲線治具1 3由線圈拔取的話’如第3 (a )及（b )圖的成形線圈3就完成。 .在第3圖之中，3是成形線圈，8是第一線圈，9是 第二線圈，]7是切半的電性絕緣紙，1 8是絕緣薄膜’ 1 9 是熱硬化性接著劑。 成形線圈3是由第一線圈8和與此空開空隙而並設的 -9- 1237939 (7) 第二線圈9、從插入於該空隙的絕緣薄膜]8所組成的切 半的電性絕緣紙1 7、及將切半的電性絕緣紙1 7與第1和 第2線圈之間接著的熱硬化性接著劑1 9所構成。 第4圖是顯示使用本發明的電性絕緣紙]7之一實施 例的圖，（a )是正面圖，（b )是側面剖面圖。在圖中， ]7是作成C字形切半的電性絕緣紙，1 8是構成切半的電 性絕緣紙1 7的絕緣薄膜，】9是熱硬化性接著劑，2 0是使 兩個C字形切半的電性絕緣紙]7對上的切半部（對接 部）。 依據本發明的製造方法的話，隔著空隙並設平角銅線 第一線圈8及與此朝反方向捲繞的第二線圈9，在電性地 連接的二層扁平形中空線圈的第一線圈8及第二線圈9的 空隙，因爲插入在絕緣薄膜]8的兩面塗佈熱硬化性接著 劑1 9的中空切半的電性絕緣紙1 7，所以使第4 ( b )圖的 絕緣薄膜1 8提高電性絕緣性及同時地熱硬化性接著劑！ 9 防止起因於線圈的加熱所造成的變形。 [產業上之可利用性] 本發明是可利用在提供尤其適用於使用在工作機械或 搬運裝置的產業用直動機，而謀求線圈的電性絕緣性的提 高及防止起因於加熱所造成的熱變形，因此使第一線圈及 第二線圈不會短路，另外即使線性馬達電樞之製作時的二 次加熱也不使加熱型自我熔接平角銅線的接著力變弱，在 環氧樹脂7的樹脂模上不會產生裂痕的扁平形中空線圈及 -10- 1237939 (8) 其製造方法的領域。 [圖式簡單說明】 第〗圖是說明平角線二重纒捲的一例之圖，顯不從纒 捲開始（a)到纏捲完成（j)之圖。 第2圖是顯示本發明的平角線二重纏捲線圈的製造方 法的立體圖，（a )是空出空隙而捲繞中的立體圖，（b ) 是在該空隙根據本發明來將切半的電性絕緣紙插入的途中 之立體圖。 第3圖是顯示本發明實施方式的線圈之圖，（a )是 線圈的立體圖，（b )是將線圈的一部份剖面，而且誇大 所示的放大圖。 第4圖是顯示本發明的電性絕緣紙之一實施例的圖， (a )是正面圖，（b )是側面剖面圖。 第5圖是顯示本發明作爲對象的線性馬達的構成之正 面剖面圖。 第6圖是以往線圈的立體圖。 第7圖是顯示起因於以往製法的加熱所造成的二次加 工後的變形線圈之圖，（a )是立體圖，（b )是側面剖面 圖’ （c )是將線圈之一部份剖面且誇大所示的放大圖。 [符號說明] 1…線性馬達的電樞 2…線性馬達的定子 -11 - (9) (9)1237939 3…成形線圈 4…永久磁鐵 5…線圈間空隙 6…心形管 7···環氧樹脂 8…第一線圈（第一平角線捲線 9…第二線圈（第二平角線捲線 10···加熱型自我熔接平角銅線 1 1…線圈側面 1 2…線圈中空部 13…捲線治具 1 7…切半的電性絕緣紙 1 8…絕緣薄膜 1 9…熱硬化性接著劑 2〇···切半部（對接部） 2〗…外側膨脹變形部 2 2…內側膨脹變形部 5 0···捲繞裝置白勺整體 5 1…捲線治具 5 1 a…旋轉軸 52…遊星捲筒 5 2a···遊星軸 5 3…圓筒 53a···旋轉軸 -12- 1237939 (10) 5 4…平角線 5 6…捲線 57·.·捲線 -13-FIG. 1 is a diagram illustrating a winding example of a flat-angle rewinding coil, showing a diagram from winding start (a) to winding completion (d), and FIG. 2 is a diagram showing a flat-angle double-winding coil of the present invention An explanatory diagram of the manufacturing method of Fig. 3 is a diagram showing a flat-angle double-wound coil obtained by the method of Fig. 2, (a) is a perspective view of the coil, and (b) is a part of the coil. It is an enlarged view showing a cross section and exaggerated. 'FIG. 4 is a figure which shows an example of using the electrically insulating paper of this invention' (a) is a front view, (b) is a side sectional view. In the figure], 50 is the whole of the winding device, and 5] is a winding jig for winding the coil -7- (5) 1237939 wire. The rotation axis 5 1 a is used as the center at an angular velocity μ 1 toward Rotates in a predetermined direction (counterclockwise in the figure). 52 is a planetary reel, 5 2 a is a planetary axis with the rotation axis 5! A of the winding jig 5 丨 as the center at an angular velocity of 2 ω], and a planetary reel may be installed here for rotation. The cylinder 5 2. 53 is a drum formed by winding a rectangular line, and the rotation shaft 53a is used as the center of rotation. 54 is a square line. Next, a description will be given of a winding method of the flat-angle double-wound roll. In (a) at the start of the winding, the winding line is wound in advance from the cylinder 53 to the star-shaped reel 5 2 as a half of the length of the necessary flat line 54. In addition, the other square line is left in the state of the cylinder 53 without being cut, and the lower part of the winding jig 51 is passed through. Then apply tension to the flat line 5 4-while turning the winding axis 5 I a with the angular velocity ω as the center to start rotating the winding jig 5 1 counterclockwise. Simultaneously, the star reel 5 2 is orbited counterclockwise at an angular velocity 2]. Fig. (B) shows a state in which the winding line rule 5] has been rotated 90 degrees from the state shown in (a), and the star reel 52 has been rotated 80 degrees. Since the traveling star reel 5 2 revolves at an angle of twice the angular velocity of the winding jig 5, a layer of winding wire 5 6 is formed on the winding jig 5]. Figure I (c) shows a state where the coil reel 51 is rotated 90 degrees from the state shown in figure (b), and the star reel 5 2 is rotated 80 degrees. Since the traveling star reel 5 2 revolves at an angular velocity which is twice the angular velocity of the winding jig 5], a circle of -8- 1237939 (6) one layer of winding wire 5 6 is formed on the winding jig 5]. Fig. 1 (d) shows the completed state after turning the winding jig 5 many times from the state shown in Fig. 1 (c) and rotating the star reel 52 a few times. Since the traveling star reel 52 revolves at an angular velocity which is twice the angular velocity of the winding jig 5], a plurality of people / horizontal flat winding lines 56 and the same majority of windings are formed on the winding jig 51. Coiled square wire coils 5 7. After that, if the winding jig 5 1 is pulled out, a hollow double coiled wire (also called α-winding) using a flat line can be produced. In addition, if "1" is used to wind the coils, as shown in Fig. 2 (a), the heating type self-welding flat-angle copper wire 10 is heated by the heater I6, and the scatter can be prevented when one side is followed. At this time, according to the present invention, a coil gap 5 of 0.3 to 0.5 m is provided between the first flat-angle coil 8 and the second flat-angle coil 9 in Fig. 2 (a). Then, as shown in Fig. 2 (b), the half-cut electrical insulating paper 7 is inserted between the rectangular coil 5 and the rectangular coil 5 5 from above and below to make the first coil 8 Sliding in the direction of arrow A in the figure 'also causes the second coil 9 to slide in the direction of arrow B in the figure to bury the gap. Next, once the winding jig 13 is pulled out from the coil, the forming coil 3 as shown in Figs. 3 (a) and (b) is completed. In Figure 3, 3 is a shaped coil, 8 is a first coil, 9 is a second coil,] 7 is a half-cut electrical insulating paper, 18 is an insulating film, and 1 9 is a thermosetting adhesive. . The formed coil 3 is a half-cut electrical insulation composed of a first coil 8 and a -9-1237939 (7) a second coil 9, and an insulating film inserted into the gap. The paper 17 and the thermosetting adhesive 19 which are halved between the electrically insulating paper 17 and the first and second coils are formed. Fig. 4 is a view showing an embodiment using the electrically insulating paper according to the present invention, (a) is a front view, and (b) is a side sectional view. In the figure,] 7 is an electric insulating paper cut in half in a C shape, 18 is an insulating film constituting the electric insulating paper 17 cut in half,] 9 is a thermosetting adhesive, and 20 is two C-shaped half-cut electrical insulating paper] 7 pairs of half-cuts (butt joints). According to the manufacturing method of the present invention, the first coil 8 of flat-angle copper wire and the second coil 9 wound in the opposite direction are provided through the gap, and the first coil of the two-layer flat hollow coil electrically connected is provided. The gaps between 8 and the second coil 9 are inserted into the insulating film] 8 and coated with a thermosetting adhesive 19 on both sides of the hollow-cut electrical insulating paper 17, so the insulating film of FIG. 4 (b) is made. 1 8 Adhesive for improving electrical insulation and thermosetting properties at the same time! 9 Prevent deformation caused by coil heating. [Industrial Applicability] The present invention can be used to provide an industrial direct drive particularly suitable for use in a work machine or a conveying device to improve the electrical insulation of a coil and prevent heat due to heating. Deformation, so that the first coil and the second coil will not be short-circuited, and even the secondary heating during the production of the linear motor armature will not weaken the bonding force of the heating type self-welding flat-angle copper wire. Flat hollow coils without cracks on resin molds and -10- 1237939 (8) Field of manufacturing method thereof. [Brief Description of the Drawings] The first figure is a diagram illustrating an example of a flat double-line reel, showing the graph from the beginning of the reel (a) to the completion of the reel (j). Fig. 2 is a perspective view showing a method for manufacturing a flat-angle double-wound coil according to the present invention. (A) is a perspective view showing a gap being wound and winding, and (b) is a half cut in the gap according to the present invention. A perspective view of an electrically insulating paper in the middle of insertion. Fig. 3 is a diagram showing a coil according to an embodiment of the present invention, (a) is a perspective view of the coil, and (b) is a partial cross-section of the coil, and the enlarged view is exaggerated. Fig. 4 is a view showing an embodiment of the electrical insulating paper of the present invention, (a) is a front view, and (b) is a side sectional view. Fig. 5 is a front sectional view showing the configuration of a linear motor as a target of the present invention. Fig. 6 is a perspective view of a conventional coil. FIG. 7 is a diagram showing a deformed coil after secondary processing caused by heating by a conventional manufacturing method, (a) is a perspective view, (b) is a side sectional view, and (c) is a partial section of a coil and Exaggerate the enlarged image shown. [Description of symbols] 1 ... Armature of linear motor 2 ... Stator of linear motor-11-(9) (9) 1237939 3 ... Formed coil 4 ... Permanent magnet 5 ... Gap between coils 6 ... Heart-shaped tube 7 ... Oxygen resin 8 ... first coil (first flat-angle coil 9) second coil (second flat-angle coil 10 ... heated self-welding flat-angle copper wire 1 1 ... coil side 1 2 ... coil hollow 13 ... coil rule 1 7… half-cut electrical insulating paper 1 8… insulating film 1 9… thermosetting adhesive 20 ··· half cut (butt joint) 2〗… outer expansion deformation 2 2… inner expansion deformation 5 0 ··· Winding device as a whole 5 1… Rolling jig 5 1 a… Rotary shaft 52… Roller 5 5a… Roller shaft 5 3… Cylinder 53a ·· Rotary shaft-12- 1237939 (10) 5 4… square line 5 6… roll line 57 ·. · Roll line-13-