TW201137900A - Insulated electric wire and coil - Google Patents

Insulated electric wire and coil Download PDF

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Publication number
TW201137900A
TW201137900A TW99113233A TW99113233A TW201137900A TW 201137900 A TW201137900 A TW 201137900A TW 99113233 A TW99113233 A TW 99113233A TW 99113233 A TW99113233 A TW 99113233A TW 201137900 A TW201137900 A TW 201137900A
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Taiwan
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wire
insulating
insulated electric
electric wire
insulated
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TW99113233A
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Chinese (zh)
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TWI459408B (en
Inventor
Chisato Ikeda
Yoshio Taka
Kazumasa Maruyama
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Totoku Electric
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Publication of TWI459408B publication Critical patent/TWI459408B/en

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Abstract

The present invention provides an insulated electric wire having an excellent high-frequency property and an excellent insulating property. The insulated electric wire of the present invention comprises: an assembled wire (11) having a circular section formed by assembling seven enamel wires (4) having an noncircular section; and a first insulating coating (1) formed by winding an insulating tape around the outer periphery of the assembled wire (11) to bind the assembled wire (11). The insulated electric wire can reduce the high frequency loss in comparison with a single wire having the same sectional area, and can decrease the outer diameter thereof in comparison with a litz wire having the same sectional area. In addition, the binding force for the assembled wire can be easily maintained by winding the insulating tape around the assembled wire, without twisting the assembled wire. Accordingly, the variation of the outer shape of the assembled wire can be reduced, and the insulation property can be improved.

Description

201137900 六、發明說明: 【發明所屬之技術領域】 本發明有關於絕緣電線及線圈,更詳細而言有關於高頻特 性和絕緣特性優良之絕緣電線及線圈。 【先前技術】 先前,已知有一種李玆線,其特徵係於將由複數根漆包線 構成之鉸線從外側壓縮為圓形而使漆包線交替密接而成之 外周,設置有自融著層(例如,參照專利文獻1)。 [先前技術文獻] [專利文獻] [專利文獻1]日本專利特開平06 — 119825號公報 • 【發明内容】 . (發明所欲解決之問題) 上述先前之李玆線係具有優良之高頻特性。 但是,在製造時係將由複數根漆包線構成之鉸線通過圓形 模型而從外侧壓縮成為圓形,此時與外周面相當之漆包層會 因與圓形模型之摩擦而損傷,使外周面之絕緣特性降低。亦 即,上述先前之李玆線會有絕緣特性之問題。因此,在捲繞 為線圈之情況時,容易發生捲線間之短路、即層間短路,可 靠度會有問題。另外,雖外周面設有自融著層,但此無法保 障絕緣特性。 因此,本發明之目的在於提供一種具有優良之高頻特性和 I Si 099113233 3 201137900 絕緣特性之絕緣電線及線圈。 (解決問題之手段)BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to insulated wires and coils, and more particularly to insulated wires and coils having excellent high frequency characteristics and insulating properties. [Prior Art] Previously, there has been known a litz wire characterized in that a hinge line composed of a plurality of enameled wires is compressed from the outside to a circular shape so that the enameled wires are alternately bonded to each other, and a self-melting layer is provided (for example). Refer to Patent Document 1). [Prior Art Document] [Patent Document 1] Japanese Patent Laid-Open Publication No. Hei 06-119825 (Summary of the Invention) The above-mentioned prior Liz line has excellent high-frequency characteristics. . However, at the time of manufacture, the hinge wire composed of a plurality of enameled wires is compressed from the outside into a circular shape by a circular mold, and the enamel coating corresponding to the outer peripheral surface is damaged by friction with the circular model, so that the outer peripheral surface is damaged. The insulation properties are reduced. That is, the above-described prior Liz line has a problem of insulation characteristics. Therefore, in the case of winding into a coil, short-circuiting between windings, that is, interlayer short-circuiting, is likely to occur, and reliability may be problematic. In addition, although the outer peripheral surface is provided with a self-melting layer, this does not protect the insulating properties. Accordingly, it is an object of the present invention to provide an insulated wire and coil having excellent high frequency characteristics and insulating properties of I Si 099113233 3 201137900. (the means to solve the problem)

1—悝絕緣電線,I 其具備有:聚集線,係聚集複數根剖面輪、寺徵在於’ 線使整體剖面輪廓為®形而成者;及第1絕緣被形之漆包 聚集線之外周捲繞絕緣帶以捆束上述聚集線。"’於上述 在上述第1觀點之絕緣電線_,將聚集複數 為非圓形之漆包線使整體剖面輪廓為圓形而成之:輪廓 束地捲繞絕轉㈣成第1絕緣被覆。在使複數根2線捆 過圓形模型並從外側壓縮為圓形以製造聚集線之情= 寺線^ 聚集線之外周面相當之漆包層會因與圓形模型之摩擦而^ 傷,而使聚集線外周面之絕緣特性降低。但是,本發明時: 於在聚集線之外周設置有至少為1層之絕緣被覆,因此可拝 得充分之絕緣特性。另外,經由捲繞絕緣帶而可防止聚集線 之散離,因此在捲繞為線圈時可獲得均一成品外徑。另外, 相較於單線而可減小高頻銅損,因此其具有優良之高頻特 性。 構成聚集線之漆包線之合計根數,犹提高向頻特性之觀點 而言最好為4根以上。又,當聚集線之製这時係使用圓形模 型來進行壓縮之情況時,就壓縮性之觀黠而。,最好為11 根以下。 在第2觀點中,本發明提供一種絕緣電方/、中,不拾絞 099113233 4 201137900 地平行捆束上述複幻艮之漆包線。 在上述第2觀點之絕緣電線中,因為係不捻絞地平行捆束 複數根之漆包線,因此當與捻絞之情況比較時可減少成品外 开乂另外可&短線長。進而,可減小直流電阻。另外,在 捻絞複數根漆包線之情料,其触加1步驟减於壓縮步 驟或帶捲繞步驟’其加工線速度較慢,因此其生產效率較 差’而成為製造成本上升之原@,但本發明由於不需要該抢 絞加工步驟’因此可提高生產效率,並可降低製造成本。 在第3觀點中’本發明提供一種絕緣電線,其在上述第1 或第2觀點之絕緣電線巾,在上述她根漆包線之全部或一 部分之銅線外周,形成有軟磁性層。 在上述第3觀點之絕緣電線中,係以軟磁性層覆蓋銅線, 因此產生滿電流損失之磁通相較於鋼線部分而容易通過表 鋼還高之固有電ji且,因此可 步地減小高頻銅損,並可更 面之磁性層。因為磁性層具有較 減小渦電流損失。故,可更進— 進一步地提高高頻特性。 在第4觀點中,本發明提供—種絕緣電線,其㈣在於 其具備有:聚集線,係聚集複數根剖面輪廓為非圓形之漆包 線及裸露祕使整體剖面輪形且㈣銅線彼此之間 保持不相鄰接配置而成者;及第1絕緣被覆,在上述聚㈣ 之外周捲繞絕緣帶以捆束上述聚集線。 在上述第4觀點之絕緣電線中,將聚集複數根刹面輪廊肩 099113233 5 201137900 非圓形之漆包線及裸露銅線使整體剖面輪廓為圓形且裸露 銅線彼此之間保持不相鄰接配置而成之聚集帶,捆束地捲繞 絕緣帶而形成第1絕緣被覆。在使複數根漆包線及裸露銅線 通過圓形模型並從外側壓縮為圓形而製造聚集線之情況 時,與聚集線之外周面相當的漆包層會因與圓形模型之摩擦 而損傷,而使聚集線外周面之絕緣特性降低。但是,本發明 係在聚集線之外周設置有至少1層之絕緣被覆,因此可獲得 充分之絕緣特性。另外,經由之捲繞絕緣帶而可防止聚集線 之散離,因此在捲繞為線圈時亦可獲得均一之成品外徑。另 外,相較於單線可減小高頻銅損,因此其具有優良之高頻特 性。進而,因為其一部分係使用裸露銅線,因此當與全部使 用漆包線之情況相比較時’其可提高焊接性且同時可降低成 本0 構成聚集線之漆包線及裸露銅線之合計根數,就提高高頻 特性之觀點而言最好為4根以上。當聚集線之製造係使用圓 形模型而進行壓縮之情況時,就壓縮性之觀點而言,最好為 11根以下。 在第5觀點中,本發明提供一種絕緣電線,其在上述第4 觀點之絕緣電線中,不捻絞地平行捆束上述複數根漆包線及 裸露銅線。 在上述第5觀點之絕緣電線中,係不捻絞地平行捆束複數 根漆包線及裸路銅線,因此當與检絞之情況比較時,可使成 099113233 6 201137900 品外形減小。另外,可使線長縮短,並可減小直流電阻。另 外,在捻絞複數根漆包線及裸露銅線之情況時,其捻絞加工 步驟相較於壓縮步驟或帶捲繞步驟加工線速度較慢,因此生 產效率變為較差,而成為製造成本上升之原因,但是本發明 時由於不需要該捻絞加工步驟,因此可提高生產效率,使製 造成本降低。 在第6觀點中,本發明提供一種絕緣電線,在上述第4 或第5觀點之絕緣電線中,在上述複數根漆包線之全部或一 部分之銅線及裸露銅線之全部或一部分之至少一者外周,形 成有軟磁性層。 在上述第6觀點之絕緣電線中,係以軟磁性層覆蓋銅線, 目此產生⑲電流損失之磁通相較於銅線部分可容易通過表 ,面之魏層。磁性層由於具有比域高之时電阻,因此可 減小渦電流損失。故,可更進一步地減小高頻銅損,並可更 進一步提高高頻特性。 在第7觀點中,本發明提供一種絕緣電線,在上述第* 至第6觀點中任-觀點之絕緣電線中,在上述裸露銅線之全 部或一部分之最外周,形成有鍍錫層。 在上述第7觀點之絕緣電線中,係使聚集線之一部分露出 有鍍錫層,因此可提高焊接性。 在第8觀點中,本發明提供一種絕緣電線,在上述第丄 至第7觀點中任一觀點之絕緣電線中,在上述第丨絕緣被覆1—悝 insulated wire, I has: a gathering line, which is a collection of a plurality of profiled wheels, and the temple is characterized by a 'line making the overall profile profile a shape of the ®; and a first insulation-shaped enamelled gathering line outside the circumference The insulating tape is wound to bundle the above-mentioned gathering line. "<> In the above-mentioned first aspect of the insulated electric wire _, a plurality of non-circular enameled wires are gathered so that the overall cross-sectional profile is circular: the outline is wound and the outer ring is wound (4) into the first insulating coating. In the case where a plurality of 2 wires are bundled across a circular model and compressed from the outside into a circle to create a gathering line = Temple line ^ The outer surface of the lacquer layer is equivalent to the friction of the circular model. The insulating properties of the outer peripheral surface of the collecting line are lowered. However, in the case of the present invention, at least one insulating coating is provided on the outer circumference of the collecting line, so that sufficient insulating properties can be obtained. Further, the scattering of the gather line can be prevented by winding the insulating tape, so that the outer diameter of the uniform product can be obtained when wound into a coil. In addition, the high-frequency copper loss can be reduced as compared with a single line, so that it has excellent high-frequency characteristics. The total number of the enameled wires constituting the gathering line is preferably four or more from the viewpoint of improving the frequency characteristics. Further, when the assembly of the gather line is performed by using a circular mold for compression, the compressibility is observed. It is preferably 11 or less. In the second aspect, the present invention provides an insulated enameled wire of the above-mentioned complex phantom in parallel with the insulated electric square, the middle, and the untwisted 099113233 4 201137900. In the insulated electric wire of the above second aspect, since the plurality of enameled wires are bundled in parallel without twisting, the outer opening of the finished product can be reduced and the length of the short wire can be reduced when compared with the case of twisting. Further, the DC resistance can be reduced. In addition, in the case of twisting a plurality of enameled wires, the step of adding one step is reduced to the compression step or the tape winding step, which has a slower processing line speed, so that the production efficiency is poorer, and the original cost of manufacturing is increased, but The present invention can improve production efficiency and reduce manufacturing costs because the smashing processing step is not required. According to a third aspect of the invention, the present invention provides an insulated electric wire in which the soft wire layer is formed on the outer circumference of the copper wire of all or part of the above-mentioned root enamel wire in the insulated wire towel of the first or second aspect. In the insulated electric wire according to the third aspect described above, since the copper wire is covered with the soft magnetic layer, the magnetic flux having a full current loss is more likely to pass through the steel plate than the steel wire portion, and thus the step is possible. Reduce the high frequency copper loss and make the magnetic layer more surface. Because the magnetic layer has a reduced eddy current loss. Therefore, it is possible to further improve the high frequency characteristics. In a fourth aspect, the present invention provides an insulated wire, which is characterized in that it has a collecting line, a plurality of enameled wires having a non-circular cross-sectional profile, and a naked profile of the overall profile wheel shape and (iv) copper wires between each other. And maintaining the non-adjacent arrangement; and coating the first insulation, and winding the insulating tape around the poly (four) to bundle the gathering line. In the insulated wire of the above fourth aspect, a plurality of brake wheel shoulders will be gathered 099113233 5 201137900 The non-circular enameled wire and the bare copper wire make the overall cross-sectional profile circular and the bare copper wires remain non-adjacent to each other. The assembled gathering belt is wound around the insulating tape to form a first insulating coating. When a plurality of enameled wires and exposed copper wires are passed through a circular shape and compressed from the outside into a circular shape to form a gathering line, the enamel coating corresponding to the outer peripheral surface of the gathering line is damaged by friction with the circular model. The insulating properties of the outer peripheral surface of the collecting line are lowered. However, in the present invention, at least one insulating coating is provided on the outer circumference of the collecting line, so that sufficient insulating properties can be obtained. Further, by winding the insulating tape, the scattering of the gather line can be prevented, so that a uniform outer diameter of the finished product can be obtained when wound into a coil. In addition, high frequency copper loss can be reduced compared to a single wire, so it has excellent high frequency characteristics. Furthermore, since a part of the bare copper wire is used, when it is compared with the case where all the enameled wire is used, it can improve the weldability and at the same time reduce the cost. The total number of enameled wires and bare copper wires constituting the gather line is improved. From the viewpoint of high frequency characteristics, it is preferably four or more. When the production of the aggregated wire is compressed by using a circular model, it is preferably 11 or less from the viewpoint of compressibility. According to a fifth aspect of the invention, the present invention provides an insulated electric wire in which the plurality of enameled wires and bare copper wires are bundled in parallel without being twisted. In the insulated electric wire according to the fifth aspect described above, the plurality of enameled wires and the bare copper wires are bundled in parallel without twisting, so that when compared with the case of the inspection, the shape of the product of 099113233 6 201137900 can be reduced. In addition, the line length can be shortened and the DC resistance can be reduced. In addition, in the case of twisting a plurality of enameled wires and exposed copper wires, the twisting processing step is slower than the compression step or the tape winding step, so that the production efficiency becomes poor, and the manufacturing cost rises. The reason, however, is that the twisting processing step is not required in the present invention, so that the production efficiency can be improved and the manufacturing cost can be lowered. According to a sixth aspect, the present invention provides the insulated electric wire according to the fourth aspect or the fifth aspect, wherein at least one of all or a part of the copper wire and the bare copper wire of the plurality of enameled wires On the outer circumference, a soft magnetic layer is formed. In the insulated electric wire of the sixth aspect described above, the copper wire is covered with a soft magnetic layer, so that the magnetic flux having a current loss of 19 can easily pass through the surface layer of the surface and the surface of the copper wire. Since the magnetic layer has a higher resistance than the domain, the eddy current loss can be reduced. Therefore, the high-frequency copper loss can be further reduced, and the high-frequency characteristics can be further improved. According to a seventh aspect of the invention, the present invention provides an insulated electric wire, wherein the tin-plated layer is formed on an outermost circumference of all or part of the bare copper wire in the insulated electric wire according to any one of the above aspects. In the insulated electric wire of the seventh aspect, the tin plating layer is exposed to one of the gathering lines, so that the weldability can be improved. According to an eighth aspect of the invention, the present invention provides an insulated electric wire, wherein the insulated electric wire according to any one of the above aspects to the seventh aspect is coated with the second insulating layer

f SJ 099113233 7 201137900 之外周捲繞絕緣帶而形成第2絕緣被覆,在上述第2絕緣被 覆之外周捲繞絕緣帶而形成第3絕緣被覆。 在上述第8觀點之絕緣電線中,係捲繞3層以上之絕緣 帶,因此可視為安全規格所規定之強化絕緣電線,當使用開 關電源等中所使用之高頻變壓器時,其亦可有助於不需要在 一次.二次間設置絕緣隔壁等之高頻變壓器小型化等。 在第9觀點中,本發明提供一種絕緣電線,其在上述第1 至第7觀點中任一觀點之絕緣電線中,在上述第1絕緣被覆 之外周擠壓樹脂而形成第2絕緣被覆,在上述第2絕緣被覆 之外周擠壓樹脂而形成第3絕緣被覆。 在上述第9觀點之絕緣電線中,係可提高捲線性。另外, 可獲得充分之絕緣特性。因此,可使用在例如開關電源等之 高頻變壓器之線圈,在此種情況時,其亦可有助於不需要在 一次·二次間設置絕緣隔壁等之高頻變壓器小型化等。 在第10觀點中,本發明提供一種絕緣電線,在第1至第 9觀點中任一觀點之絕緣電線中,在最外周設有自融著層。 在上述第10點之絕緣電線中,係可獲得線圈之形狀保持 性。另外,若將自融著層之内側層設為樹脂擠壓層,則可容 易形成自融著層。 在第11觀點中,本發明提供一種線圈,其特徵在於,其 係捲繞有上述第1至第10觀點中任一觀點之絕緣電線而成 者0 099113233 8 201137900 ”在上述第u觀點之線圈中,係使用具有優良高頻特性及 絕緣特性之絕緣電線,因此其成為具有優良高頻特性及絕緣 特性之線圈。另外,亦容易小型化。其可使用在例如開關電 5之高頻變壓器之線圈’在此種情況時,其亦可有助於在 一次·二次間不需要設置絕緣隔壁等之高頻變壓器小型化 等。 (發明效果) 依知本發明之絕緣電線,期可提高高頻特性及絕緣特性。 另外,可使成品外徑變小。 依,、!本發明之線圈,可提高高頻特性及絕緣特性。另外, 可易於達到小型化。 【實施方式】 以下,根據圖示之實施形態而更詳細說明本發明。另外, 不由此而限制本發明。 [實施例] 一實施例1 — 圖1係表示實施例1之絕緣電線101之側視圖。圖2係圖 1中A-A’之剖視圖。 該絕緣電線101係具備有:聚集線1卜係將剖面輪廓為 非圓形之7根漆包線4平行聚集而使整體之剖面輪廓為圓形 者,第1絕緣被覆1,係在聚集線u之外周捲繞絕緣帶以 拥束聚集線11而成者;第2絕緣被覆2,係在第丨絕緣被f SJ 099113233 7 201137900 A second insulating coating is formed by winding an insulating tape around the periphery, and an insulating tape is wound around the second insulating covering to form a third insulating coating. In the insulated wire of the eighth aspect, the insulating tape is wound by three or more layers. Therefore, it can be regarded as a reinforced insulated wire specified by a safety specification. When a high-frequency transformer used in a switching power supply or the like is used, it may have It is not necessary to reduce the size of high-frequency transformers such as insulating partitions in one or two places. According to a ninth aspect, the present invention provides an insulated electric wire according to any one of the first to seventh aspects, wherein the second insulating coating is formed by extruding a resin on the outer periphery of the first insulating coating. The second insulating coating is applied to the outer periphery to press the resin to form a third insulating coating. In the insulated electric wire of the ninth aspect, the winding linearity can be improved. In addition, sufficient insulation properties can be obtained. Therefore, a coil of a high-frequency transformer such as a switching power supply can be used. In this case, it is also possible to contribute to miniaturization of a high-frequency transformer in which an insulating partition is not required to be provided once or twice. According to a tenth aspect, the present invention provides an insulated wire, wherein the insulated wire of any one of the first to ninth aspects is provided with a self-melting layer on the outermost periphery. In the insulated wire of the above tenth point, the shape retention of the coil can be obtained. Further, when the inner layer of the self-melting layer is a resin extruded layer, the self-melting layer can be easily formed. According to an eleventh aspect, the present invention provides a coil in which the insulated electric wire of any one of the above-described first to tenth aspects is wound. 0 099113233 8 201137900 In the case of using an insulated electric wire having excellent high-frequency characteristics and insulating properties, it is a coil having excellent high-frequency characteristics and insulating properties, and is also easy to be miniaturized. It can be used, for example, in a high-frequency transformer of a switching electric 5 In this case, it is also possible to contribute to miniaturization of a high-frequency transformer in which an insulating partition wall or the like is not required in one or two times. (Effect of the invention) The insulated electric wire of the present invention can be improved in height. In addition, the outer diameter of the finished product can be reduced. In addition, the coil of the present invention can improve high-frequency characteristics and insulation characteristics, and can be easily miniaturized. The present invention will be described in more detail, and the present invention is not limited thereto. [Embodiment] An embodiment 1 - Fig. 1 shows an insulated electric wire 101 of the embodiment 1. Fig. 2 is a cross-sectional view taken along line A-A' of Fig. 1. The insulated wire 101 is provided with a collecting line 1 and 7 enameled wires 4 having a non-circular cross-sectional profile are gathered in parallel so that the overall profile is round The first insulating coating 1 is formed by winding an insulating tape around the gathering line u to concentrate the gathering line 11; the second insulating coating 2 is attached to the second insulating layer.

i i I 099113233 201137900 覆1捲繞絕緣帶而成者;及第3絕緣被覆3,係在第2絕緣 被覆2捲繞絕緣帶而成者。 漆包線4係在銅線4a之外周燒結漆包層牝者。 若以具體例表示,絕緣電線101之外徑為〇 69mm,導體 剖面積為0.191平方mm,絕緣帶為聚酯膜。 絕緣電線101例如可由以下方式進行連續製造、亦即使在 外徑0.21mm之圓形剖面輪廓銅線燒結有獏厚15評之耐熱 胺甲酸乙酯樹脂而成之漆包線,以7根相平行聚集,使其通 過口徑0.51mm之圓形模型後經壓縮而製造聚集線n(壓縮 步驟),並在该聚集線η之外周以3階段進行帶捲繞(帶捲 繞步驟)。 依照貫施例1之絕緣電線1〇1,可獲得以下之效果。 (1) 當與具有相同導體剖面積之單線比較時,其可減小高 頻損失。 (2) 其具有3層之絕緣被覆卜2、3,因此絕緣特性優良。 (3) 經由捲繞絕緣帶而可防止壓縮之聚集線u之散離。 (4) 因為可不捻絞地平行捆束漆包線4,因此相較於捻絞 之情況可使外形變小。另外,可縮短線長。進而,可減小直 流電阻。 (5) 在捻絞複數根漆包線4之情況時,其捻絞加工步驟之 線迷相較於壓縮步驟或帶捲繞步驟而較慢,因此生產效 、成為製造成本上升之原因,但因本實施例不需要該 099113233 201137900 捻絞加工步驟,故可提高生產效率,可降低製造成本。 —實施例2 — 圖3係表示實施例2之絕緣電線102之剖視圖。 該絕緣電線102係具備有:聚集線12,係將剖面輪廓為 非圓形之7根漆包磁性線5平行聚集而使整體之剖面輪廓為 圓形者;第1絕緣被覆1,係在聚集線12之外周捲繞絕緣 帶以捆束聚集線12而成者;第2絕緣被覆2,係在第1絕 緣被覆1捲繞絕緣帶而成者;及第3絕緣被覆3,係在第2 絕緣被覆2捲繞絕緣帶而成者。 漆包磁性線5係在銅線4a之外周形成軟磁性層5a並在其 外周燒結漆包層4b者。 若以具體例表示,軟磁性層5a係容易追隨經壓縮步驟之 壓縮變形或拉伸變形之鎳或鎳合金。軟磁性層5a之厚度例 如為 1.5 μιη。 依照實施例2之絕緣電線102,除了具有實施例1之絕緣 電線101之效果外,可更進一步透過軟磁性層5a之磁屏蔽 效果來減低高頻損失。 —實施例3 — 圖4係表示實施例3之絕緣電線103之剖視圖。 該絕緣電線103係具備有:聚集線13,係在剖面輪廓為 非圓形之1根裸露銅線6周圍,平行聚集剖面輪廓為非圓形 之6根漆包線4而使整體之剖面輪為圓形者;第1絕緣被覆i i I 099113233 201137900 The first insulating tape is wound over the first layer; and the third insulating coating 3 is formed by winding the insulating tape on the second insulating covering 2 . The enameled wire 4 is a sintered enamel coating on the outer periphery of the copper wire 4a. As shown in the specific example, the outer diameter of the insulated wire 101 is 〇 69 mm, the cross-sectional area of the conductor is 0.191 mm 2 , and the insulating tape is a polyester film. The insulated electric wire 101 can be continuously manufactured, for example, in the following manner, and even if a circular cross-sectional profile copper wire having an outer diameter of 0.21 mm is sintered with an enameled wire of a heat-resistant urethane resin, the seven phases are gathered in parallel. This was passed through a circular model having a diameter of 0.51 mm and then compressed to produce a collecting line n (compression step), and the belt winding was performed in three stages outside the gathering line n (belt winding step). According to the insulated wire 1〇1 of the first embodiment, the following effects can be obtained. (1) It can reduce high frequency loss when compared with a single line having the same conductor sectional area. (2) It has three layers of insulating coverings 2 and 3, and therefore has excellent insulating properties. (3) The scattering of the compressed gather line u can be prevented by winding the insulating tape. (4) Since the enameled wire 4 can be bundled in parallel without twisting, the outer shape can be made smaller than in the case of twisting. In addition, the line length can be shortened. Further, the DC resistance can be reduced. (5) In the case of twisting a plurality of enameled wires 4, the line of the twisting process step is slower than the compression step or the tape winding step, so that the production efficiency is a cause of an increase in manufacturing cost, but The embodiment does not require the 099113233 201137900 twisting processing step, so that the production efficiency can be improved and the manufacturing cost can be reduced. - Embodiment 2 - Fig. 3 is a cross-sectional view showing the insulated electric wire 102 of Embodiment 2. The insulated wire 102 is provided with a collecting line 12 in which seven lacquer magnetic wires 5 having a non-circular cross-sectional profile are gathered in parallel so that the overall cross-sectional profile is circular; the first insulating coating 1 is gathered. The outer circumference of the wire 12 is wound around the insulating tape to bundle the gathering line 12; the second insulating coating 2 is formed by winding the insulating tape on the first insulating coating 1; and the third insulating coating 3 is in the second Insulation coating 2 is obtained by winding an insulating tape. The enamel magnetic wire 5 is formed by forming a soft magnetic layer 5a on the outer circumference of the copper wire 4a and sintering the enamel layer 4b on the outer periphery thereof. As a specific example, the soft magnetic layer 5a is a nickel or nickel alloy which easily follows the compression deformation or the tensile deformation of the compression step. The thickness of the soft magnetic layer 5a is, for example, 1.5 μm. According to the insulated electric wire 102 of the second embodiment, in addition to the effect of the insulated electric wire 101 of the first embodiment, the magnetic shielding effect of the soft magnetic layer 5a can be further transmitted to reduce the high frequency loss. - Embodiment 3 - Fig. 4 is a cross-sectional view showing the insulated electric wire 103 of the third embodiment. The insulated wire 103 is provided with a collecting line 13 around a bare copper wire 6 having a non-circular cross-sectional profile, and parallelly collecting six enameled wires 4 having a non-circular cross-sectional profile so that the overall profile wheel is round. Shape; first insulation coating

i s I 099113233 11 201137900 1,係在聚集線13之外周捲繞絕緣帶以捆束聚集線13而成 者;第2絕緣被覆2,係在第1絕緣被覆1捲繞絕緣帶而成 者;及第3絕緣被覆3,係在第2絕緣被覆2捲繞絕緣帶而 成者。 依照實施例3之絕緣電線103,除了具有實施例1之絕緣 電線101之效果外,因為係使用裸露銅線6,故當與全部為 漆包線4之情況相比較時,其可使成本降低。 —實施例4 — 圖5係表示實施例4之絕緣電線104之剖視圖。 該絕緣電線104係具備有:聚集線14,係在剖面輪廓為 非圓形之1根漆包磁性線5周圍,平行聚集剖面輪廓為非圓 形之3根漆包磁性線5及剖面輪廓為非圓形之3根鍍錫銅線 7,而使整體之剖面輪廓為圓形,且鍍錫銅線7彼此間保持 不互相鄰接之配置;第1絕緣被覆1,係在聚集線14之外 周捲繞絕緣帶以捆束聚集線14而成者;第2絕緣被覆2, 係在第1絕緣被覆1捲繞絕緣帶而成者;及第3絕緣被覆3, 係在第2絕緣被覆2捲繞絕緣帶而成者。 依照實施例4之絕緣電線104,除了具有實施例3之絕緣 電線103效果外,因為使用鍍錫銅線7,因此可提高焊錫性。 —實施例5 — 圖6係表示實施例5之絕緣電線105之側視圖。 該絕緣電線105係具備有:聚集線11,係將剖面輪廓為 099113233 12 201137900 非圓形之7根漆包線4平行聚集而使整體之剖面輪庸為圓形 者;第1絕緣被覆卜係在聚集線n之外周捲繞絕緣帶以 捆束聚集線11而成者;第2絕緣被覆2,,係藉由樹脂擠 壓而被覆第1絕緣被覆i之外周而成者;及第3絕緣被覆 3’,係藉由樹脂擠壓而被覆第2絕緣被覆2,之外周而成者。 依照實施例5之絕緣電線1〇5,除了具有實施例3之絕緣 電線103效果外,更可提高捲線性。 —實施例6 — 圖7係表示實施例6之絕緣電線106之剖視圖。 δ亥Μ緣電線1 〇6係在實施例5之絕緣電線1 最外周形成 有自融著層9者。 依照實施例6之絕緣電線1〇6 ’除了具有實施例5之絕緣 電線105效果外,當線圈化時可提高形狀保持性。 —實施例7 — 亦可適當組合實施例1〜實施例6之各元件。例如,亦可 在實施例1之第3絕緣被覆3外周設置自融著層9。另外, 亦可使用鍍錫銅線來代替實施例3之裸露鋼線6 —實施例8 — 捲繞實施例1之絕緣電線1〇1(導體剖面積0191平方 mm、外徑0.69mm),製作圈數52圈、線圈長度5mm、線 圈内徑20mm之空心線圈。 該空心線圈之線圈層數為7層’線圈外徑為3〇mm,線_ 099113233 13 201137900 直流電阻為0.360Q,100kHz下夕士 ^有效電阻為0.82Ω,200kHz 之有效電阻為2.17Ω。 —比較例1 — 在外4工0.5mm之剖面輪廓為圓形之銅線外周以3階段 進行帶捲繞’而製作單線(導體剖面積〇196平方麵、外徑 0.68mm)。捲繞該單線,製作圈數52圈、線圈長度5mm、 線圈内徑20nirn之空心線圈。 該空心線圈之線圈層數為7層,線圈外徑為3〇mm,線圈 直流電阻為0.355Ω,100kHz下之有效電阻為2.76Q,200kHz 下之有效電阻為5.70Ω。 實施例8之線圈相較於比較例1之線圈雖然外徑尺寸相 同’但其具有優良之高頻特性。 —比較例2— 在外徑0.2mm之剖面輪廓為圓形之銅線,燒結膜厚ι.5μηι 之耐熱胺甲酸乙酯樹脂而成漆包線,捻絞7根之漆包線用來 製作聚集線(捻絞加工步驟),在該聚集線之外周以3階段進 行帶捲繞’而製作李玆線(導體剖面積0.220平方mm、外 徑0.84mm)。捲繞該李玆線,而製作圈數52圈、線圈長度 5mm、線圈内徑20mm之空心線圈。 該空心線圈之線圈層數為9層,線圈外徑為35mm,線圈 直流電阻為0.341Q,100kHz下之有效電阻為0.78il,200kHz 下之有效電阻為2.02Ω。 099113233 14 201137900 實施例8之線圈相較於比較例2之線圈雖然高頻損失大致 相同但其具有優良之小型化特性。 (產業上之可利用性) 本發明之絕緣電線及線圈可利用在開關電源之變壓器或 非接觸式供電裝置之線圈或馬達等^ ° 【圖式簡單說明】 圖1係表示實施例1之絕緣電線之侧視圖。 圖2係圖1之a — A’剖視圖。 圖3係表示實施例2之絕緣電線之剖視圖 圖4係表示實施例3之絕緣電線之剖視圖 圖5係表示實施例4之絕緣電線之剖視圖 圖6係表示實施例5之絕緣電線之剖視圖 圖7係表示實施例6之絕緣電線之側視圖 【主要7L件符號說明】 1 第1絕緣被覆 2 ' V 第2絕緣被覆 3 ' 3, 第3絕緣被覆 4 漆包線 4a 銅線 4b 漆包層 5 漆包磁性線 5a 軟磁性層 099113233 [S] 15 201137900 6 裸露銅線 7 鍍錫銅線 7a 鍍錫層 9 自融著層 11 〜14 聚集線 101〜106 絕緣電線 099113233 16Is I 099113233 11 201137900 1 is formed by winding an insulating tape around the gathering line 13 to bundle the gathering line 13; and the second insulating coating 2 is obtained by winding the insulating tape on the first insulating coating 1; The third insulating coating 3 is obtained by winding the insulating tape around the second insulating coating 2. According to the insulated electric wire 103 of the embodiment 3, in addition to the effect of the insulated electric wire 101 of the embodiment 1, since the bare copper wire 6 is used, it can be reduced in cost when compared with the case where all are the enameled wire 4. - Embodiment 4 - Fig. 5 is a cross-sectional view showing the insulated electric wire 104 of Embodiment 4. The insulated wire 104 is provided with a collecting line 14 around an enamel magnetic wire 5 having a non-circular cross-sectional profile, and three parallel lacquered magnetic wires 5 having a non-circular cross-sectional profile and a cross-sectional profile. 3 non-circular tinned copper wires 7, so that the overall cross-sectional profile is circular, and the tinned copper wires 7 are not adjacent to each other; the first insulating coating 1 is outside the gathering line 14 The insulating tape is wound to bundle the gathering line 14; the second insulating coating 2 is formed by winding the insulating tape with the first insulating coating 1; and the third insulating coating 3 is wound with the second insulating coating 2 Wrap around the insulation tape. According to the insulated electric wire 104 of the embodiment 4, in addition to the effect of the insulated electric wire 103 of the third embodiment, since the tinned copper wire 7 is used, the solderability can be improved. - Embodiment 5 - Fig. 6 is a side view showing the insulated electric wire 105 of Embodiment 5. The insulated wire 105 is provided with a collecting line 11 which has a cross-sectional profile of 099113233 12 201137900. The non-circular 7 enameled wires 4 are gathered in parallel so that the overall cross-section is circular; the first insulating covering is gathered. The outer circumference of the line n is wound around the insulating tape to bundle the gathering line 11; the second insulating coating 2 is formed by coating the outer insulating coating i by resin extrusion; and the third insulating coating 3 ', the second insulation coating 2 is covered by resin extrusion, and the outer circumference is formed. According to the insulated electric wire 1〇5 of the embodiment 5, in addition to the effect of the insulated electric wire 103 of the embodiment 3, the winding linearity can be further improved. - Embodiment 6 - Fig. 7 is a cross-sectional view showing an insulated wire 106 of Embodiment 6. The δ Μ Μ 电线 wire 1 〇 6 is formed on the outermost periphery of the insulated wire 1 of the fifth embodiment, and the self-melting layer 9 is formed. The insulated electric wire 1〇6' according to the embodiment 6 has the effect of improving the shape retention when coiled, in addition to the effect of the insulated electric wire 105 of the fifth embodiment. - Embodiment 7 - The respective elements of Embodiments 1 to 6 can also be combined as appropriate. For example, the self-melting layer 9 may be provided on the outer periphery of the third insulating coating 3 of the first embodiment. Alternatively, a tinned copper wire may be used instead of the bare steel wire 6 of Example 3 - Example 8 - winding the insulated wire 1 〇 1 of the embodiment 1 (conductor sectional area 0191 square mm, outer diameter 0.69 mm), An air-core coil with 52 turns, a coil length of 5 mm, and a coil inner diameter of 20 mm. The number of coil layers of the air-core coil is 7 layers 'the outer diameter of the coil is 3 〇 mm, the line _ 099113233 13 201137900 DC resistance is 0.360Q, the effective resistance at 100 kHz is 0.82 Ω, and the effective resistance at 200 kHz is 2.17 Ω. - Comparative Example 1 - A single wire (conductor cross-sectional area 〇 196 flat, outer diameter 0.68 mm) was produced by winding the tape around the outer circumference of a copper wire having a circular profile of 0.5 mm in three stages. The single wire was wound, and an air-core coil of 52 turns, a coil length of 5 mm, and a coil inner diameter of 20 nirn was produced. The number of coil layers of the air-core coil is 7 layers, the outer diameter of the coil is 3 〇 mm, the DC resistance of the coil is 0.355 Ω, the effective resistance at 100 kHz is 2.76 Q, and the effective resistance at 200 kHz is 5.70 Ω. The coil of Example 8 had the same outer diameter as the coil of Comparative Example 1 but had excellent high frequency characteristics. -Comparative Example 2 - A copper wire with a circular cross-sectional profile of 0.2 mm in outer diameter, a heat-resistant urethane resin with a sintered film thickness of ι.5μηι is used as an enameled wire, and 7 enameled wires are used to make a gather line. In the processing step, the tape winding was performed in three stages outside the gathering line to form a Litz wire (conductor sectional area of 0.220 mm 2 and outer diameter of 0.84 mm). The Litz wire was wound, and an air-core coil having 52 turns, a coil length of 5 mm, and a coil inner diameter of 20 mm was produced. The number of coil layers of the air-core coil is 9 layers, the outer diameter of the coil is 35 mm, the DC resistance of the coil is 0.341 Q, the effective resistance at 100 kHz is 0.78 il, and the effective resistance at 200 kHz is 2.02 Ω. 099113233 14 201137900 The coil of the embodiment 8 has an excellent miniaturization characteristic although the high frequency loss is substantially the same as that of the coil of the comparative example 2. (Industrial Applicability) The insulated wire and coil of the present invention can be used as a coil or a motor of a transformer or a non-contact power supply device of a switching power supply. [FIG. 1 shows the insulation of the embodiment 1. Side view of the wire. Figure 2 is a cross-sectional view taken along line a - A' of Figure 1. 3 is a cross-sectional view showing the insulated electric wire of the embodiment 2. FIG. 5 is a cross-sectional view showing the insulated electric wire of the embodiment 3. FIG. 5 is a cross-sectional view showing the insulated electric wire of the fourth embodiment. FIG. Side view showing the insulated wire of Example 6 [Main 7L symbol description] 1 1st insulation coating 2 ' V 2nd insulation coating 3 ' 3, 3rd insulation coating 4 Enameled wire 4a Copper wire 4b Enamelled 5 Enamelled Magnetic wire 5a Soft magnetic layer 099113233 [S] 15 201137900 6 Exposed copper wire 7 Tinned copper wire 7a Tinned layer 9 Self-melting layer 11 ~ 14 Concentrated wire 101~106 Insulated wire 099113233 16

Claims (1)

201137900 七、申請專利範圍: 1. 一種絕緣電線,其特徵在於,其具備有:聚集線,係聚 集複數根剖面輪廓為非圓形之漆包線使整體剖面輪廓為圓 形者;及第1絕緣被覆,於上述聚集線之外周捲繞絕緣帶以 捆束上述聚集線。 2. 如申請專利範圍第1項之絕緣電線,其中,不捻絞地平 行捆束上述複數根之漆包線。 3. 如申請專利範圍第1或2項之絕緣電線,其中,在上述 複數根漆包線之全部或一部分之銅線外周,形成有軟磁性 層。 4. 一種絕緣電線,其特徵在於,其具備有:聚集線,係聚 集複數根剖面輪廓為非圓形之漆包線及裸露銅線使整體剖 面輪廓為圓形且裸露銅線彼此間保持不相鄰接配置而成;及 第1絕緣被覆,在上述聚集線之外周捲繞絕緣帶以捆束上述 聚集線。 5. 如申請專利範圍苐4項之絕緣電線*其中,不檢、纟父地平 行捆束上述複數根漆包線及裸露銅線。 6. 如申請專利範圍第4或5項之絕緣電線,其中,在上述 複數根漆包線之全部或一部分之銅線及裸露銅線之全部或 一部分之至少一者外周,形成有軟磁性層。 7. 如申請專利範圍第4至6項中任一項之絕緣電線,其 中,在上述裸露銅線之全部或一部分之最外周,形成有鍍錫 [s I 099113233 17 201137900 層。 8. 如申請專利範圍第1至7項中任一項之絕緣電線,其 中,在上述第1絕緣被覆之外周捲繞絕緣帶而形成第2絕緣 I 被覆,在上述第2絕緣被覆之外周捲繞絕緣帶而形成第3 絕緣被覆。 9. 如申請專利範圍第1至7項中任一項之絕緣電線,其 中,在上述第1絕緣被覆之外周擠壓樹脂而形成第2絕緣被 覆,在上述第2絕緣被覆之外周擠壓樹脂而形成第3絕緣被 覆。 10. 如申請專利範圍第1至9項中任一項之絕緣電線,其 中,在最外周設有自融著層。 11. 一種線圈,其特徵在於,其係捲繞有申請專利範圍第1 至10項中任一項之絕緣電線而成者。 099113233 18201137900 VII. Patent application scope: 1. An insulated electric wire, characterized in that it has: a gathering line, which is a plurality of cross-sectional enameled wires having a non-circular cross-sectional profile such that the overall cross-sectional profile is round; and the first insulating coating An insulating tape is wound around the outer circumference of the above-mentioned gathering line to bundle the above-mentioned gathering line. 2. For the insulated wire of the first item of the patent application, in which the plurality of enameled wires of the above plurality are bundled in parallel without twisting. 3. The insulated electric wire of claim 1 or 2, wherein a soft magnetic layer is formed on the outer circumference of the copper wire of all or a part of the plurality of enameled wires. An insulated wire characterized by comprising: a collecting line for collecting a plurality of enameled wires having a non-circular cross-sectional profile and a bare copper wire such that the overall cross-sectional profile is circular and the bare copper wires are not adjacent to each other. And the first insulation coating, and an insulating tape is wound around the gathering line to bundle the gathering line. 5. If you apply for the insulated wire* of the patent scope 苐4, the above-mentioned multiple enameled wire and bare copper wire are bundled in parallel. 6. The insulated electric wire of claim 4, wherein a soft magnetic layer is formed on at least one of all or a part of all or part of the copper wire and the bare copper wire of the plurality of enameled wires. 7. The insulated electric wire according to any one of claims 4 to 6, wherein a tin plating [s I 099113233 17 201137900 layer is formed on the outermost circumference of all or a part of the bare copper wire. 8. The insulated electric wire according to any one of claims 1 to 7, wherein the insulating tape is wound around the first insulating coating to form a second insulating I coating, and the second insulating coating is wound around the second insulating coating. A third insulating coating is formed around the insulating tape. 9. The insulated electric wire according to any one of claims 1 to 7, wherein the resin is extruded to form a second insulating coating on the outer periphery of the first insulating coating, and the resin is extruded on the outer periphery of the second insulating coating. A third insulating coating is formed. 10. The insulated wire of any one of claims 1 to 9, wherein the self-melting layer is provided on the outermost periphery. A coil in which an insulated wire of any one of claims 1 to 10 is wound. 099113233 18
TW099113233A 2010-04-27 2010-04-27 Insulated wires and coils TWI459408B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2760687B2 (en) * 1991-12-24 1998-06-04 日本電信電話株式会社 Litz wire and its manufacturing method
JPH0660732A (en) * 1992-08-10 1994-03-04 Riken Densen Kk Manufacture of litz wire and manufacturing device thereof
JPH06119825A (en) * 1992-10-02 1994-04-28 Hitachi Cable Ltd Litz wire and manufacture thereof
JP4021720B2 (en) * 2002-07-22 2007-12-12 パイオニア株式会社 Insulated conductors and self-bonding insulated conductors

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