JP2012119600A - Method of manufacturing coil - Google Patents
Method of manufacturing coil Download PDFInfo
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- JP2012119600A JP2012119600A JP2010270048A JP2010270048A JP2012119600A JP 2012119600 A JP2012119600 A JP 2012119600A JP 2010270048 A JP2010270048 A JP 2010270048A JP 2010270048 A JP2010270048 A JP 2010270048A JP 2012119600 A JP2012119600 A JP 2012119600A
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- coil
- electromagnetic coil
- paint
- coating
- groove
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 85
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 239000003973 paint Substances 0.000 claims description 44
- 238000004804 winding Methods 0.000 claims description 29
- 238000001723 curing Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
- Drying Of Solid Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
本発明は、塗料にて被覆されたコイルを製造するためのコイル製造方法に関する。 The present invention relates to a coil manufacturing method for manufacturing a coil coated with a paint.
この種の従来のコイル製造方法としては、コイルを塗料に浸漬する工程と、塗料から引き上げたコイルを加熱して、表面を覆った塗料を固化させる工程とを備えたものが知られている（例えば、特許文献１参照）。そして、塗料の固化は、熱風や遠赤外線による加熱が一般的であった。 As this type of conventional coil manufacturing method, a method including a step of immersing a coil in paint and a step of heating the coil pulled up from the paint to solidify the paint covering the surface is known ( For example, see Patent Document 1). The solidification of the paint is generally performed by heating with hot air or far infrared rays.
ところが、上述した従来のコイル製造方法では、コイルの部位によって加熱ムラが生じ易いという問題があった。 However, the above-described conventional coil manufacturing method has a problem that uneven heating tends to occur depending on the portion of the coil.
本発明は、上記事情に鑑みてなされたもので、コイルの表面を覆った塗料をムラ無く均一に加熱することが可能なコイル製造方法の提供を目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a coil manufacturing method capable of uniformly heating a paint covering the surface of a coil without unevenness.
上記目的を達成するためになされた請求項１の発明に係るコイル製造方法は、コイルの表面を塗料で覆った後、コイルに交流を通電して自己発熱させて、塗料を乾燥又は硬化させ、塗料にて被覆されたコイルを製造するところに特徴を有する。 In the coil manufacturing method according to the invention of claim 1 made to achieve the above object, the surface of the coil is covered with a paint, and then the coil is energized with self-heating to dry or harden the paint. It is characterized by producing coils coated with paint.
請求項２の発明は、請求項１に記載のコイル製造方法において、コイルは、電磁コイルであり、塗料は、乾燥又は硬化して電磁コイルを被覆する絶縁皮膜になるところに特徴を有する。 The invention of claim 2 is characterized in that, in the coil manufacturing method of claim 1, the coil is an electromagnetic coil, and the paint is dried or cured to become an insulating film covering the electromagnetic coil.
請求項３の発明は、請求項２に記載のコイル製造方法において、電磁コイルの表面の塗料の皮膜を、電磁コイルの自己発熱によって内側から加熱した後、外側からヒーターにて加熱するところに特徴を有する。 The invention of claim 3 is characterized in that, in the coil manufacturing method of claim 2, the coating film on the surface of the electromagnetic coil is heated from the inside by self-heating of the electromagnetic coil and then heated by the heater from the outside. Have
請求項４の発明は、請求項３に記載のコイル製造方法において、電磁コイルの両端末部を巻回部分から同一方向に突出する構造に形成しておき、電磁コイルの巻回部分を受容しかつ、巻回部分の巻回軸方向又は、巻回軸と両端末部分の突出方向とに共に直交した方向の何れかの方向から巻回部分を見たときの輪郭部分に対して隙間を空けて隣接する内側面を有した溝形発熱体をヒーターとして備えておき、溝形発熱体を発熱させかつ、電磁コイルの巻回部分を溝形発熱体内に遊嵌させて溝形発熱体の長手方向に移動し、塗料を加熱するところに特徴を有する。 According to a fourth aspect of the present invention, in the coil manufacturing method according to the third aspect, both end portions of the electromagnetic coil are formed in a structure protruding in the same direction from the winding portion, and the winding portion of the electromagnetic coil is received. In addition, there is a gap with respect to the contour portion when the winding portion is viewed from either the winding axis direction of the winding portion or the direction orthogonal to both the winding axis and the protruding direction of both end portions. A groove-shaped heating element having an adjacent inner surface is provided as a heater, the groove-shaped heating element is heated, and the winding portion of the electromagnetic coil is loosely fitted in the groove-shaped heating element so that the length of the groove-shaped heating element is increased. It is characterized in that it moves in the direction and heats the paint.
請求項５の発明は、請求項４に記載のコイル製造方法において、溝形発熱体の外側にＩＨコイルを配置しておき、ＩＨコイルによって溝形発熱体を誘導加熱するところに特徴を有する。 The invention of claim 5 is characterized in that, in the coil manufacturing method according to claim 4, an IH coil is disposed outside the groove-shaped heating element, and the groove-shaped heating element is induction-heated by the IH coil.
［請求項１及び２の発明］
請求項１の発明によれば、コイルの表面を塗料で覆った後で、そのコイルに交流を通電すると、コイルのインピーダンスによってコイル自体が自己発熱するので、コイルの表面を覆った塗料をムラ無く均一に加熱することができる。また、請求項２の発明によれば、電磁コイルを被覆した絶縁被膜を形成することができる。
[Inventions of Claims 1 and 2]
According to the first aspect of the present invention, after the coil surface is covered with the coating material, when alternating current is applied to the coil, the coil itself self-heats due to the impedance of the coil. It can be heated uniformly. Further, according to the invention of claim 2, an insulating film covering the electromagnetic coil can be formed.
ここで、本発明に係るコイルは、電磁コイルに限定されるものではなく、コイルスプリングであってもよい。また、塗料は、絶縁被覆を形成するためのものに限定されるものではなく、例えば、防錆用や装飾用の塗料であってもよい。 Here, the coil which concerns on this invention is not limited to an electromagnetic coil, A coil spring may be sufficient. The paint is not limited to the one for forming the insulating coating, and may be a rust preventive or decorative paint, for example.
［請求項３の発明］
請求項３の発明によれば、塗料を内側から加熱することで、塗料に含まれる水分や溶剤を未固化状態の塗料の外面から揮散させ、その後、塗料の外側からヒーターにて加熱するので、固化後の絶縁被膜に気泡状の膨らみやクレーター状の凹みが残ることを防止することができる。また、コイルの自己発熱だけで固化させる場合に比べて、塗料の完全固化までに要する時間を短縮することが可能になる。
[Invention of claim 3]
According to the invention of claim 3, by heating the paint from the inside, the moisture and solvent contained in the paint are volatilized from the outer surface of the unsolidified paint, and then heated by the heater from the outside of the paint. It is possible to prevent bubble-like swelling and crater-like dents from remaining in the solidified insulating coating. In addition, it is possible to shorten the time required for complete solidification of the paint as compared with the case of solidifying only by self-heating of the coil.
［請求項４及び５の発明］
請求項４の発明によれば、電磁コイルの輪郭部分に対して、隙間を開けて隣接した溝形発熱体の内側面からの放射熱で塗料を効果的に加熱することができる。ここで、溝形発熱体は、通電による電気抵抗で自己発熱する構成でもよいし、請求項５の発明のように、ＩＨコイルによって誘導加熱される構成でもよい。
[Inventions of Claims 4 and 5]
According to invention of Claim 4, a coating material can be effectively heated with the radiant heat from the inner surface of the groove-shaped heat generating body which opened the clearance gap and opened with respect to the outline part of the electromagnetic coil. Here, the groove heating element may be configured to self-heat with electric resistance caused by energization, or may be configured to be induction heated by an IH coil as in the invention of claim 5.
以下、本発明の一実施形態を、図１〜図４に基づいて説明する。本実施形態で例示する金属製ワークは、例えば、モータ用の電磁コイルＷであって図４に示されている。同図に示すように、電磁コイルＷは、偏平断面の銅線を巻回軸方向から見て四角形になるように巻回すると共に、１対の端末部Ｗｂ，Ｗｂを巻回部Ｗａの四角形の一辺から同じ方向に直線状に突出させた構造になっている。巻回部Ｗａの表面は、例えば電着塗装によって塗料で被覆されている。これに対し、１対の端末部Ｗｂ，Ｗｂは塗料で被覆されずに銅線が露出している。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The metal workpiece exemplified in this embodiment is, for example, an electromagnetic coil W for a motor and is shown in FIG. As shown in the figure, the electromagnetic coil W winds a copper wire having a flat cross section so that it becomes a square when viewed from the winding axis direction, and a pair of terminal portions Wb, Wb are squares of the winding portion Wa. It has a structure that protrudes linearly from one side in the same direction. The surface of the winding portion Wa is covered with a paint by, for example, electrodeposition coating. On the other hand, the pair of terminal portions Wb and Wb are not covered with the paint and the copper wire is exposed.
巻回部Ｗａが未固化状態の塗料で覆われた電磁コイルＷは、コンベア３０によって塗料固化装置１０に向けて搬送される。コンベア３０は、巻回部Ｗａを上にした状態で電磁コイルＷを保持するチャック治具３１，３１を一体に備えている。また、コンベア３０は絶縁部材で構成されており、例えば、前進と停止とを繰り返すタクト搬送（間欠搬送）を行う。 The electromagnetic coil W in which the winding portion Wa is covered with the unsolidified paint is conveyed toward the paint solidifying device 10 by the conveyor 30. The conveyor 30 is integrally provided with chuck jigs 31 and 31 that hold the electromagnetic coil W with the winding portion Wa facing upward. Moreover, the conveyor 30 is comprised with the insulating member, for example, performs the tact conveyance (intermittent conveyance) which repeats advancing and a stop.
チャック治具３１，３１は絶縁体で構成され、電磁コイルＷのうち、銅線が露出した１対の端末部Ｗｂ，Ｗｂを把持している。また、チャック治具３１，３１は、巻回部Ｗａの巻回軸が、コンベア３０による搬送方向と平行になるように電磁コイルＷを保持している（図２参照）。 The chuck jigs 31 and 31 are made of an insulator, and grip a pair of terminal portions Wb and Wb of the electromagnetic coil W where the copper wire is exposed. Further, the chuck jigs 31 and 31 hold the electromagnetic coil W so that the winding axis of the winding part Wa is parallel to the conveying direction by the conveyor 30 (see FIG. 2).
塗料固化装置１０は、電磁コイルＷの搬送方向に沿って直線状に延びている。詳細には、塗料固化装置１０は、角筒状のトンネル構造をなした加熱炉１１を備え、その加熱炉１１のうち搬入口１１Ａに近い側に前段加熱エリアＡＲ１が設けられ、搬出口１１Ｂに近い側に後段加熱エリアＡＲ２が設けられている。 The paint solidifying device 10 extends linearly along the conveying direction of the electromagnetic coil W. Specifically, the paint solidifying device 10 includes a heating furnace 11 having a rectangular tube-shaped tunnel structure, and a front heating area AR1 is provided on the side of the heating furnace 11 close to the carry-in port 11A, and the carry-out port 11B has A rear heating area AR2 is provided on the near side.
加熱炉１１のうち、後段加熱エリアＡＲ２の内側には、溝形発熱体３５が配設されている。溝形発熱体３５は、加熱炉１１と平行に延びた角溝形構造をなしており、電磁コイルＷは、その巻回部Ｗａが溝形発熱体３５の内側に遊嵌した状態で、溝形発熱体３５の長手方向に移動するようになっている。詳細には、溝形発熱体３５は、電磁コイルＷをその巻回軸方向から見たときに四角形をなした巻回部Ｗａの輪郭部分に対して、三方から所定の隙間を空けて隣接する内側面を有している。 In the heating furnace 11, a groove-shaped heating element 35 is disposed inside the rear heating area AR2. The groove-shaped heating element 35 has a rectangular groove-shaped structure extending in parallel with the heating furnace 11, and the electromagnetic coil W is formed in a state in which the winding portion Wa is loosely fitted inside the groove-shaped heating element 35. The shape heating element 35 moves in the longitudinal direction. In detail, the groove-shaped heating element 35 is adjacent to the contour portion of the winding portion Wa having a quadrangular shape when the electromagnetic coil W is viewed from the winding axis direction with a predetermined gap from three sides. It has an inner surface.
溝形発熱体３５は、例えば、電磁コイルＷよりも電気抵抗の大きい金属（例えば、鉄、ステンレス等）で構成されている。また、加熱炉１１の内面には、溝形発熱体３５における幅方向の両側壁の外面及び天井壁の外面に近接するように複数のＩＨコイル３６，３６が設けられている。さらに、加熱炉１１のうち、少なくとも後段加熱エリアＡＲ２に対応する部分は、断熱構造となっている。例えば、全体が断熱材で構成されるか或いは、内面に断熱材がライニングされている。 The groove-shaped heating element 35 is made of, for example, a metal (for example, iron, stainless steel, etc.) having a larger electric resistance than the electromagnetic coil W. A plurality of IH coils 36 and 36 are provided on the inner surface of the heating furnace 11 so as to be close to the outer surface of both side walls in the width direction of the groove-shaped heating element 35 and the outer surface of the ceiling wall. Further, at least a portion of the heating furnace 11 corresponding to the rear heating area AR2 has a heat insulating structure. For example, the whole is made of a heat insulating material, or the heat insulating material is lined on the inner surface.
図１に示すように、後段加熱エリアＡＲ２の所定位置には、溝形発熱体３５の温度を計測するための温度センサ２２が設けられている。その計測結果に基づいて、加熱炉制御部１２が、溝形発熱体３５の発熱温度を自動調節する。例えば、後段加熱エリアＡＲ２を進むに従って温度が高くなるようにＩＨコイル３６，３６に流す交流の電流値又は周波数を調節する。 As shown in FIG. 1, a temperature sensor 22 for measuring the temperature of the groove-shaped heating element 35 is provided at a predetermined position in the rear heating area AR2. Based on the measurement result, the heating furnace control unit 12 automatically adjusts the heat generation temperature of the channel heating element 35. For example, the value or frequency of the alternating current flowing through the IH coils 36 and 36 is adjusted so that the temperature becomes higher as it proceeds through the rear heating area AR2.
加熱炉１１のうち、前段加熱エリアＡＲ１には可撓性の摺接端子３４，３４が設けられている。摺接端子３４，３４は、交流電源３７に導通接続されて、加熱炉１１の幅方向の両側面に固定されている。摺接端子３４，３４は、電磁コイルＷの通過領域に向かって突出しており、電磁コイルＷのうち、塗料で覆われていない両端末部Ｗｂ，Ｗｂと摺接可能となっている。電磁コイルＷをタクト搬送するコンベア３０は、摺接端子３４，３４と１対の端末部Ｗｂ，Ｗｂとが接触した位置で一時停止するようになっており、このとき、電磁コイルＷと摺接端子３４，３４とを含む電気回路が形成可能となっている。なお、交流電源３７と電磁コイルＷとの導通接続は、摺接端子３４，３４以外の方法で行ってもよい。 Of the heating furnace 11, flexible sliding terminals 34, 34 are provided in the front heating area AR1. The slidable contact terminals 34 are connected to an AC power source 37 and are fixed to both side surfaces of the heating furnace 11 in the width direction. The sliding contact terminals 34, 34 protrude toward the passing area of the electromagnetic coil W, and can be slidably contacted with both terminal portions Wb, Wb that are not covered with the paint in the electromagnetic coil W. The conveyer 30 for carrying the tactile conveyance of the electromagnetic coil W is temporarily stopped at a position where the sliding contact terminals 34, 34 and the pair of terminal portions Wb, Wb are in contact with each other. An electric circuit including the terminals 34 and 34 can be formed. The conductive connection between the AC power source 37 and the electromagnetic coil W may be performed by a method other than the sliding contact terminals 34 and 34.
前段加熱エリアＡＲ１のうち、摺接端子３４，３４が設けられた位置には、放射温度計１４，１４が設けられている。放射温度計１４，１４は、電磁コイルＷにおける１対の端末部Ｗｂ，Ｗｂの温度を非接触で計測可能となっており、その計測結果に基づいて、加熱炉制御部１２が電磁コイルＷの発熱温度を自動調節するようになっている。具体的には、交流電源３７の電流値又は周波数を調節して、例えば、前段加熱エリアＡＲ１を進むに従って徐々に電磁コイルＷが昇温するように自動調節される。 Radiation thermometers 14 and 14 are provided at positions where the sliding contact terminals 34 and 34 are provided in the front heating area AR1. The radiation thermometers 14 and 14 can measure the temperature of the pair of terminal portions Wb and Wb in the electromagnetic coil W in a non-contact manner. Based on the measurement result, the heating furnace control unit 12 can detect the temperature of the electromagnetic coil W. The exothermic temperature is automatically adjusted. Specifically, by adjusting the current value or frequency of the AC power supply 37, for example, the electromagnetic coil W is automatically adjusted so as to gradually increase in temperature as it advances through the preceding heating area AR1.
次に本実施形態の塗料固化装置１０の動作について説明する。電着塗装工程にて巻回部Ｗａが塗料で覆われた電磁コイルＷは、その端末部Ｗｂ，Ｗｂをチャック治具３１，３１にて把持された状態で、搬入口１１Ａから加熱炉１１内へと搬入され、前段加熱エリアＡＲ１、後段加熱エリアＡＲ２の順にタクト搬送されながら加熱される。 Next, operation | movement of the coating material solidification apparatus 10 of this embodiment is demonstrated. The electromagnetic coil W in which the winding portion Wa is covered with the paint in the electrodeposition coating process, the terminal portions Wb and Wb are gripped by the chuck jigs 31 and 31, and the inside of the heating furnace 11 from the carry-in port 11A. And heated while being transported in the order of the front heating area AR1 and the rear heating area AR2.
前段加熱エリアＡＲ１では、電磁コイルＷに対して交流が直接通電される。すると、電磁コイルＷがインピーダンスによって自己発熱する。これにより、電磁コイルＷの表面を覆った塗料が、内側（電磁コイルＷ側）から加熱される。また、前段加熱エリアＡＲ１を先に進むに従って、電磁コイルＷの発熱温度が徐々に上昇する。そして、前段加熱エリアＡＲ１における加熱により、塗料に含まれる水分や溶剤が気化して未固化状態の塗料の外面から揮散する。 In the pre-heating area AR1, alternating current is directly applied to the electromagnetic coil W. Then, the electromagnetic coil W generates heat by impedance. Thereby, the coating material which covered the surface of the electromagnetic coil W is heated from the inner side (electromagnetic coil W side). Moreover, the heat generation temperature of the electromagnetic coil W gradually rises as it proceeds through the preceding heating area AR1. And the water | moisture content and solvent which are contained in a coating material evaporate by the heating in the front | former stage heating area AR1, and are volatilized from the outer surface of the unsolidified coating material.
前段加熱エリアＡＲ１に次ぐ後段加熱エリアＡＲ２では、ＩＨコイル３６，３６に高周波電流を流すことで、溝形発熱体３５が誘導加熱され、その溝形発熱体３５からの放射熱により、電磁コイルＷを覆った塗料が外側から加熱される。なお、後段加熱エリアＡＲ２における加熱中も、電磁コイルＷの余熱により、塗料は内側から加熱される。そして、加熱炉１１内を所定時間かけて移動することで、電磁コイルＷを覆った塗料が完全に固化して絶縁被膜が形成される。 In the subsequent heating area AR2 subsequent to the preceding heating area AR1, the groove-shaped heating element 35 is induction-heated by passing a high-frequency current through the IH coils 36, 36, and the electromagnetic coil W is radiated by the radiant heat from the groove-shaped heating element 35. The coating covering the surface is heated from the outside. Even during heating in the rear heating area AR2, the paint is heated from the inside by the residual heat of the electromagnetic coil W. Then, by moving within the heating furnace 11 over a predetermined time, the paint covering the electromagnetic coil W is completely solidified and an insulating film is formed.
このように本実施形態によれば、巻回部Ｗａを塗料で覆った後で電磁コイルＷに交流電流を通電すると、インピーダンスによって電磁コイルＷが自己発熱するので、電磁コイルＷを覆った塗料をムラ無く均一に加熱することができる。 As described above, according to the present embodiment, when an alternating current is applied to the electromagnetic coil W after covering the winding portion Wa with the paint, the electromagnetic coil W self-heats due to the impedance. It can be heated uniformly without unevenness.
また、塗料を内側から加熱することで、塗料の水分や溶剤を未固化状態の塗料の外面から揮散させ、その後、塗料を外側から加熱するので、固化後の絶縁被膜に気泡状の膨らみやクレーター状の凹みが残ることを防止することができる。また、電磁コイルＷの自己発熱だけで固化させる場合に比べて、塗料の完全固化までに要する時間を短縮することが可能になる。 In addition, by heating the paint from the inside, the moisture and solvent of the paint are volatilized from the outer surface of the unsolidified paint, and then the paint is heated from the outside. It is possible to prevent the dents from being left. Moreover, compared with the case where it solidifies only by the self-heating of the electromagnetic coil W, it becomes possible to shorten the time required until the paint is completely solidified.
［他の実施形態］
本発明は、前記実施形態に限定されるものではなく、例えば、以下に説明するような実施形態も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。
[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.
（１）上記実施形態では、電磁コイルＷを覆った塗料を外側から加熱するための後段加熱エリアＡＲ２を設けていたが、後段加熱エリアＡＲ２を設けずに、電磁コイルＷの自己発熱のみで塗料を固化させてもよい。 (1) In the above embodiment, the rear heating area AR2 for heating the coating material covering the electromagnetic coil W from the outside is provided. However, the coating material is formed only by self-heating of the electromagnetic coil W without providing the rear heating area AR2. May be solidified.
（２）上記実施形態では、溝形発熱体３５を誘導加熱によって発熱させる構成としていたが、通電による電気抵抗で自己発熱させる構成としてもよい。 (2) In the above embodiment, the groove-shaped heating element 35 is configured to generate heat by induction heating, but may be configured to self-heat using electrical resistance caused by energization.
（３）上記実施形態では、電磁コイルＷを加熱炉１１内でタクト搬送しながら加熱を行っていたが、加熱炉１１内を一定速度で搬送しながら加熱を行ってもよい。 (3) In the above embodiment, heating is performed while the electromagnetic coil W is transported in the heating furnace 11 in a tact manner. However, heating may be performed while transporting the heating coil 11 at a constant speed.
（４）上記実施形態では、本発明に係る「コイル」として電磁コイルを例示したが、コイルスプリングであってもよい。また、塗料は、絶縁被覆を形成するためのものに限定されるものではなく、例えば、防錆用や装飾用の塗料であってもよい。 (4) In the above embodiment, the electromagnetic coil is exemplified as the “coil” according to the present invention, but a coil spring may be used. The paint is not limited to the one for forming the insulating coating, and may be a rust preventive or decorative paint, for example.
（５）上記実施形態では、電磁コイルＷの巻回軸方向とコンベア３０による電磁コイルＷの搬送方向とを平行となるようにしていたが、図５に示すように、電磁コイルＷの巻回軸及び１対の端末部Ｗｂ，Ｗｂの突出方向とに直交した方向で電磁コイルＷを搬送するようにしてもよい。この場合、溝形発熱体３５の内側面を、電磁コイルＷの巻回軸及び１対の端末部Ｗｂ，Ｗｂの突出方向とに直交した方向から巻回部Ｗａを見たときの輪郭部分に隙間を空けて隣接させればよい。 (5) In the above embodiment, the winding axis direction of the electromagnetic coil W and the conveyance direction of the electromagnetic coil W by the conveyor 30 are parallel to each other. However, as shown in FIG. You may make it convey the electromagnetic coil W in the direction orthogonal to the protrusion direction of an axis | shaft and a pair of terminal part Wb and Wb. In this case, the inner side surface of the groove-shaped heating element 35 is an outline portion when the winding portion Wa is viewed from a direction orthogonal to the winding axis of the electromagnetic coil W and the protruding direction of the pair of terminal portions Wb and Wb. What is necessary is just to make a clearance and adjoin.
１０ 塗料固化装置
３５ 溝形発熱体（ヒーター）
３６ ＩＨコイル
３７ 交流電源
Ｗ 電磁コイル（コイル）
Ｗａ 巻回部
Ｗｂ 端末部
10 Paint solidifying device 35 Channel heating element (heater)
36 IH coil 37 AC power supply W Electromagnetic coil (coil)
Wa winding part Wb terminal part
Claims (5)
前記電磁コイルの巻回部分を受容しかつ、巻回部分の巻回軸方向又は、前記巻回軸と前記両端末部分の突出方向とに共に直交した方向の何れかの方向から前記巻回部分を見たときの輪郭部分に対して隙間を空けて隣接する内側面を有した溝形発熱体を前記ヒーターとして備えておき、
前記溝形発熱体を発熱させかつ、前記電磁コイルの巻回部分を前記溝形発熱体内に遊嵌させて前記溝形発熱体の長手方向に移動し、前記塗料を加熱することを特徴とする請求項３に記載のコイル製造方法。 Both end portions of the electromagnetic coil are formed in a structure protruding in the same direction from the wound portion,
The winding portion receives the winding portion of the electromagnetic coil and from either the winding axis direction of the winding portion or the direction orthogonal to the winding axis and the protruding direction of the both end portions. A heater with a groove-shaped heating element having an inner surface adjacent to the contour portion when viewed with a gap,
The groove-shaped heating element is heated, and the winding portion of the electromagnetic coil is loosely fitted in the groove-shaped heating element to move in the longitudinal direction of the groove-shaped heating element to heat the paint. The coil manufacturing method according to claim 3.
Priority Applications (1)
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| JP2010270048A JP2012119600A (en) | 2010-12-03 | 2010-12-03 | Method of manufacturing coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010270048A JP2012119600A (en) | 2010-12-03 | 2010-12-03 | Method of manufacturing coil |
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| JP2012119600A true JP2012119600A (en) | 2012-06-21 |
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| JP2010270048A Pending JP2012119600A (en) | 2010-12-03 | 2010-12-03 | Method of manufacturing coil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013099513A1 (en) * | 2011-12-28 | 2013-07-04 | 中央発條株式会社 | Method for coating spring member |
| JP2014234567A (en) * | 2013-06-03 | 2014-12-15 | 日本電信電話株式会社 | Method and device for manufacturing conductive fiber |
| JP2015029963A (en) * | 2013-08-02 | 2015-02-16 | 住友電気工業株式会社 | Method of manufacturing insulation coating wire material, manufacturing device of insulation coating wire material, and insulation coating wire material |
-
2010
- 2010-12-03 JP JP2010270048A patent/JP2012119600A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013099513A1 (en) * | 2011-12-28 | 2013-07-04 | 中央発條株式会社 | Method for coating spring member |
| JP2014234567A (en) * | 2013-06-03 | 2014-12-15 | 日本電信電話株式会社 | Method and device for manufacturing conductive fiber |
| JP2015029963A (en) * | 2013-08-02 | 2015-02-16 | 住友電気工業株式会社 | Method of manufacturing insulation coating wire material, manufacturing device of insulation coating wire material, and insulation coating wire material |
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