JP6024050B2 - Multilayer coil and method of manufacturing the same - Google Patents

Multilayer coil and method of manufacturing the same Download PDF

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JP6024050B2
JP6024050B2 JP2012226372A JP2012226372A JP6024050B2 JP 6024050 B2 JP6024050 B2 JP 6024050B2 JP 2012226372 A JP2012226372 A JP 2012226372A JP 2012226372 A JP2012226372 A JP 2012226372A JP 6024050 B2 JP6024050 B2 JP 6024050B2
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conductive plates
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insulating material
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JP2014078642A (en
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径裕 高橋
径裕 高橋
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Keihin Corp
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Description

本発明は、環状であるとともに一部がスリットで分断される複数枚の導電金属製の導電板が、前記スリットの位置を順次オフセットしつつ積層され、その積層状態での通電経路を螺旋状とすべく積層方向で隣接する前記導電板同士が前記スリットの一側および他側で接合される積層コイルおよび積層コイルの製造方法に関する。   In the present invention, a plurality of conductive metal conductive plates that are annular and partly divided by slits are stacked while sequentially offsetting the positions of the slits, and the energization path in the stacked state is spiral. The present invention relates to a laminated coil in which the conductive plates adjacent in the laminating direction are joined on one side and the other side of the slit, and a method for manufacturing the laminated coil.

巻線断面積が大きい平角線を巻きあげて高効率なコイル、所謂エッジワイス型のインダクタコイルを製作するにあたって、平角線を一巻ずつ順次巻き上げる作業は、コイルの設定容量が大きいものほど平角線が太くなるので巻き上げ難くなり、製作時間を要するのでコストが高くなる上に、緊密に巻くことが困難であることからコイルを所望の形状に仕上げることが難しい、という課題がある。このような課題を解決するために、所望の環状の形状とした複数枚の導電板を、順次接合して積層することで積層コイルを得るようにしたが、特許文献1および特許文献2で知られている。 When manufacturing a highly efficient coil, so-called edge-wise inductor coil, by winding a rectangular wire with a large winding cross-sectional area, the work of winding the rectangular wire one by one in sequence is Since the coil becomes thick, it is difficult to wind it up, requiring a manufacturing time, resulting in an increase in cost, and it is difficult to wind the coil tightly, so that it is difficult to finish the coil into a desired shape. In order to solve such a problem, a plurality of conductive plates with a desired annular shape, those that to obtain a laminated coil by stacking sequentially joining, in Patent Documents 1 and 2 Are known.

特開2004−363514号公報JP 2004-363514 A 特開2001−167930号公報JP 2001-167930 A

特許文献1で開示されたものでは、環状であるとともに一部がスリットで始端および終端に分断された形状を有する複数枚の導電板を、スリットの位置を順次オフセットしつつ積層し、積層方向で隣接する導電板の終端および始端を溶接あるいはろう付けで接合するようにしている。このため溶接による場合には、溶接時の熱で導電板が変形してしまう可能性があり、レーザー溶接による場合には、適切なエアギャップ管理をしなければならないので導電板を1枚ずつ養生して溶接する工程を繰り返す必要があり、積層コイルの組立に時間がかかってしまう。またろう付けによる場合には、接触不良を起こさないようにするために、接合面、はんだおよびはんだ条件の管理に手間がかかる上、導電板を銅板としたときには銅がはんだに溶けだしたりすることで固着強度や伝動伝導率の低下を生じたりする等の懸念材料が多く、手間がかかってしまう。   In what is disclosed in Patent Document 1, a plurality of conductive plates having a ring shape and a part of which is divided by a slit at a start end and a terminal end are stacked while sequentially offsetting the positions of the slits. The end and the start of adjacent conductive plates are joined by welding or brazing. For this reason, in the case of welding, there is a possibility that the conductive plate will be deformed by the heat during welding. In the case of laser welding, appropriate air gap management must be performed, so the conductive plates are cured one by one. Thus, it is necessary to repeat the welding process, and it takes time to assemble the laminated coil. In addition, in the case of brazing, in order to prevent poor contact, it takes time to manage the joint surface, solder, and solder conditions, and when the conductive plate is a copper plate, copper may be dissolved in the solder. There are many materials of concern such as a decrease in fixing strength and transmission conductivity, which is troublesome.

また特許文献2で開示されたものでは、C字型、U字型またはL字型に形成される導電板および絶縁材を螺旋状となるように交互に積層し、導電部としてのはんだまたは導電性接着材で導電板同士を接合するようにしている。このため絶縁性を考慮して絶縁板の厚みを所定量確保しようとすると、絶縁材の厚み分だけ、はんだまたは導電性接着剤の使用量が増えるので、手間がかかる上にコスト高となり、また絶縁材および導電板相互の位置を定める構成となっていないので組立てに時間がかかってしまう。   Moreover, in what was disclosed by patent document 2, the conductive plate and insulation material which are formed in C shape, U shape, or L shape are laminated | stacked alternately so that it may become spiral shape, and solder or electroconductivity as an electroconductive part The conductive plates are joined with a conductive adhesive. For this reason, if it is attempted to secure a predetermined thickness of the insulating plate in consideration of the insulation, the amount of solder or conductive adhesive used increases by the thickness of the insulating material, which is troublesome and expensive. Since it is not the structure which determines the position of an insulating material and a conductive plate, assembly will take time.

本発明は、かかる事情に鑑みてなされたものであり、手間がかからないようにして容易に製作可能としてコスト低減を図った積層コイルと、その積層コイルを適切に製造可能とした積層コイルの製造方法を提供することを目的とする。   SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and a laminated coil that can be easily manufactured without taking time and cost reduction, and a laminated coil manufacturing method that can appropriately manufacture the laminated coil The purpose is to provide.

上記目的を達成するために、本発明は、環状であるとともに一部がスリットで分断される複数枚の導電金属製の導電板が、前記スリットの位置を順次オフセットしつつ積層され、その積層状態での通電経路を螺旋状とすべく積層方向で隣接する前記導電板同士が前記スリットの一側および他側で接合される積層コイルにおいて、複数枚の前記導電板が、その一面に重ねた絶縁材を積層方向で隣接する他の導電板の他面に対向させるようにして積層され、積層方向で隣接する前記導電板のうち一方の前記導電板の前記スリットの一側と、他方の前記導電板の前記スリットの他側とが、積層方向で隣接する前記導電板の一方に形成されて他方の前記導電板側に突出するとともに前記スリットの一側に配置される突部と、前記絶縁材を貫通する前記突部を受け入れるようにして前記他方の前記導電板に形成されて前記スリットの他側に配置される圧入孔とから電気的接続を得るようにして圧入接合部で圧入接合されていることを第1の特徴とする。 To achieve the above object, the present invention provides a plurality of conductive metal conductive plates that are annular and partially divided by slits, and are stacked while sequentially offsetting the positions of the slits. In the laminated coil in which the conductive plates adjacent in the laminating direction are joined on one side and the other side of the slit in order to make the energization path in a spiral shape, a plurality of the conductive plates are insulated on one surface. One side of the slit of one of the conductive plates among the conductive plates adjacent in the lamination direction and the other of the conductive plates are laminated so as to face the other surface of another conductive plate adjacent in the lamination direction. The other side of the slit of the plate is formed on one of the conductive plates adjacent in the stacking direction and protrudes to the other conductive plate side, and a protrusion disposed on one side of the slit, and the insulating material Penetrating through the above Zheng Rukoto is press bonded with and from the press-fitting hole disposed on the other side so as to obtain an electrical connection pressed junction of the slits formed in the conductive plate of the other so as to accept part first It shall be the feature of.

発明は、第の特徴の積層コイルを製造するための積層コイルの製造方法であって、導電金属から成る帯状の金属素材の一面に絶縁素材を重ねて成る帯状の二重素材に複数の前記導電板に個別に対応した前記突部を前記金属素材の一面から突出するように形成する突部形成工程と、複数の前記導電板に個別に対応した前記圧入孔を前記二重素材に穿孔する圧入孔穿孔工程と、一部がスリットで分断された環状であって前記突部および前記圧入孔を前記スリットの両側に有する複数枚の前記導電板ならびにそれらの導電板の一面に重なる前記絶縁材を前記二重素材から切り出す切り出し工程と、該切り出し工程で切り出した複数枚の前記導電板を相互に対応する前記突部および前記圧入孔を対向させるようにしつつ前記導電板相互間に前記絶縁材を挟むようにして順次積層する積層工程と、前記突部を前記絶縁材に貫通するようにして前記圧入孔に圧入しつつ積層状態にある複数枚の前記導電板を積層方向に圧縮して積層コイルを形成する圧入組立工程とを実行することを第の特徴とする。 The present invention is a method for manufacturing a laminated coil for producing a laminated coil having the first feature, wherein a plurality of strip-shaped double materials formed by stacking an insulating material on one surface of a strip-shaped metal material made of a conductive metal. Protrusion forming step for forming the protrusions corresponding to the conductive plates individually so as to protrude from one surface of the metal material, and punching holes corresponding to the plurality of conductive plates individually in the double material A press-fitting hole drilling step, and a plurality of the conductive plates having an annular shape partly divided by a slit and having the protrusions and the press-fitting holes on both sides of the slit, and the insulation overlapping one surface of the conductive plates wherein a cutout step of cutting the wood from the double material, a plurality of the conductive plate cut out in the cutting process step, the projecting portion and the press-in hole corresponding to each other between said conductive plate each other while so as to face A laminating step of sequentially stacked so as to sandwich an edge material, to compress the plurality of the conductive plates in a stacked state while press-fitting the protruding portion into the press-in hole so as to penetrate the insulating material in the stacking direction lamination The second feature is that a press-fit assembly process for forming a coil is performed.

本発明は、第の特徴の構成に加えて、前記帯状の前記二重素材を、金属素材ロールから巻きほどいた帯状の前記金属素材の一面に、絶縁素材ロールから巻きほどいた帯状の前記絶縁素材を重ね合わせて形成することを第の特徴とする。 In addition to the configuration of the second feature, the present invention provides the band-shaped insulating material that is unwound from an insulating material roll on one surface of the band-shaped metal material unwound from the metal material roll. A third feature is that the materials are formed in an overlapping manner.

さらに本発明は、第の特徴の構成に加えて、前記帯状の前記二重素材が、帯状の金属素材の一面に絶縁コーティングを予め被着したものであることを第の特徴とする。 The present invention, in addition to the second feature, the strip of the duplex material, the fourth characteristic in that the one surface of the strip-like metal material is obtained by previously deposited insulating coating.

本発明の第1の特徴によれば、導電性を有する複数の金属素材が、その一面に絶縁材を重ねたままで積層され、積層方向で隣接する導電板のうち一方の導電板のスリットの一側と、他方の導電板のスリットの他側とが圧入接合部で接合されるので、溶接またはんだ付け等の手間のかかる作業が不要であり、安価な積層コイルを得ることができ、スリットの一側に配置される突部と、スリットの他側に配置されて前記突部を圧入させる圧入孔とで圧入接合部を構成するので、積層方向で隣接する導電板同士の電気的接続を容易に達成することができる。 According to the first feature of the present invention, a plurality of conductive metal materials are stacked with an insulating material stacked on one surface, and one of the slits of one of the conductive plates adjacent to each other in the stacking direction. and the side, since the other side of the slit of the other conductive plate is bonded by the press-fit joint, welded also the work time-consuming soldering, etc. is not required, Ki out to obtain an inexpensive laminated coil, scan Since the press-fitting joint is constituted by the protrusion arranged on one side of the lit and the press-fitting hole arranged on the other side of the slit and press-fitting the protrusion, electrical connection between the conductive plates adjacent in the stacking direction Can be easily achieved.

本発明の第の特徴によれば、金属素材の一面に絶縁素材が重なって成る二重素材に金属素材の他万から突出するようにして突部を形成する突部形成工程と、複数の導電板に個別に対応した圧入孔を二重素材に穿孔する圧入孔穿孔工程と、複数枚の前記導電板ならびにそれらの導電板の一面に重なる前記絶縁材を二重素材から切り出す切り出し工程と、突部および圧入孔を対向させるようにしつつ複数枚の導電板を相互間に前記絶縁材を挟むようにして順次積層する積層工程と、突部を圧入孔に圧入しつつ積層状態にある複数枚の前記導電板を積層方向に圧縮して積層コイルを形成する圧入組立工程とを実行するので、絶縁材を挟むようにして積層される複数枚の導電板同士の電気的接続を得るにあたって絶縁材の一部を剥離させる専用作業が不要であり、絶縁材の一部を剥離、除去するといった手間のかかる作業を不要として製作工程の短縮を図り、積層コイルを安価に製作することができる。 According to the second feature of the present invention, a protrusion forming step of forming a protrusion so as to protrude from another part of the metal material on a double material in which an insulating material overlaps one surface of the metal material, A press-fitting hole drilling step for punching a press-fitting hole corresponding to each of the conductive plates into a double material; a cutting-out step of cutting out a plurality of the conductive plates and the insulating material overlapping one surface of those conductive plates from the double material; A laminating step of sequentially laminating a plurality of conductive plates with the protrusions and press-fitting holes facing each other, and sandwiching the insulating material therebetween, and a plurality of sheets in a stacked state while pressing the protrusions into the press-fitting holes A press-fit assembly process is performed in which the conductive plate is compressed in the stacking direction to form a laminated coil.Therefore, a part of the insulating material is used to obtain electrical connection between a plurality of conductive plates stacked with the insulating material sandwiched therebetween. Dedicated work for peeling Not necessary, a portion of the insulating material peeling, aims to shorten the manufacturing process as required such working troublesome such removal, it is possible to inexpensively manufacture the laminated coil.

本発明の第の特徴によれば、金属素材ロールから巻きほどいた帯状の金属素材の一面に、絶縁素材ロールから巻きほどいた帯状の絶縁素材を重ね合わせて二重素材を形成するので、二重素材を容易に形成することができる。 According to the third feature of the present invention, the double material is formed by superimposing the belt-shaped insulating material unwound from the insulating material roll on one surface of the belt-shaped metal material unwound from the metal material roll. Heavy materials can be easily formed.

さらに本発明の第の特徴によれば、二重素材が、帯状の金属素材の一面に絶縁コーティングを予め被着したものであるので、二重素材を形成する工程が簡略化でき、より安価に積層コイルを製造することができる。 Furthermore, according to the fourth feature of the present invention, since the double material is pre-coated with an insulating coating on one surface of the band-shaped metal material, the process of forming the double material can be simplified and less expensive. A laminated coil can be manufactured.

第1の実施の形態の積層コイルの一部を示す縦断面図である。It is a longitudinal cross-sectional view which shows a part of laminated coil of 1st Embodiment. 導電板の形状を示すために積層順に導電板を並べて示す図である。It is a figure which arranges and shows a conductive plate in order of lamination, in order to show the shape of a conductive plate. 積層コイルの製造装置を簡略化して示す図である。It is a figure which simplifies and shows the manufacturing apparatus of a laminated coil. 第2の実施の形態の積層コイルの製造装置を簡略化して示す図である。It is a figure which simplifies and shows the manufacturing apparatus of the laminated coil of 2nd Embodiment.

以下、本発明の実施の形態について添付の図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

本発明の第1の実施の形態について図1〜図3を参照しながら説明すると、先ず図1において、この積層コイルは、銅等の導電金属から成る複数枚の横断面矩形状の導電板6,6,6…が、その一面に重ねた絶縁材7,7,7…を積層方向で隣接する他の導電板6,6,6…の他面に対向させつつ、通電経路が螺旋状となるように積層、接合されて成るものである。   The first embodiment of the present invention will be described with reference to FIGS. 1 to 3. First, in FIG. 1, the laminated coil is composed of a plurality of conductive plates 6 having a rectangular cross section made of a conductive metal such as copper. , 6, 6..., While the insulating material 7, 7, 7... Stacked on one surface is opposed to the other surfaces of the other conductive plates 6, 6, 6. It is formed by stacking and joining.

図2において、前記導電板6,6,6…は、環状であるとともに一部がスリット8,8,8…で分断された形状を有するものであり、この実施の形態では、全体として矩形状に形成される導電板6の一部がスリット8で分断される。   In FIG. 2, the conductive plates 6, 6, 6... Are annular and have a shape that is partly divided by slits 8, 8, 8... A part of the conductive plate 6 formed in the step is divided by the slit 8.

しかも一面に絶縁材7,7,7…が重ねられた前記各導電板6,6,6…は、前記スリット8,8,8…の位置を積層順に順次オフセットしつつ前記絶縁材7,7,7…を相互間に挟むようにして積層され、積層方向で隣接する前記導電板6,6のうち一方の前記導電板6の前記スリット8の一側と、他方の前記導電板6の前記スリット8の他側とが、電気的接続を得るようにして圧入接合部5,5,5…で接合される。   In addition, each of the conductive plates 6, 6, 6... On which the insulating materials 7, 7, 7... Are stacked on one side, the positions of the slits 8, 8, 8. , 7... Are stacked so as to sandwich each other, and one side of the slit 8 of the conductive plate 6 among the conductive plates 6 and 6 adjacent in the stacking direction, and the slit 8 of the other conductive plate 6. The other side is joined by press-fit joints 5, 5, 5... So as to obtain electrical connection.

前記圧入接合部5は、積層方向で隣接する前記導電板6の一方の他面(絶縁材7とは反対側の面)に形成されて他方の前記導電板6側に突出するとともに前記スリット8の一側に配置される突部9と、前記絶縁材7を貫通する前記突部9を受け入れるようにして前記他方の前記導電板6に形成されて前記スリット8の他側に配置される圧入孔10とから成り、積層方向両端の導電板6,6を除く複数の導電板6,6,6…には、前記スリット8,8,8…の一側に配置されて積層方向の一方に突出する突部9,9,9…と、該突部9,9,9…を受け入れるようにして前記スリット8,8,8…の他側に配置される圧入孔10,10,10…とが設けられる。 The press-fitting joint 5 is formed on one other surface (surface opposite to the insulating material 7) of the conductive plates 6 adjacent in the stacking direction, protrudes to the other conductive plate 6 side, and the slit 8 A press-fitting formed on the other conductive plate 6 and disposed on the other side of the slit 8 so as to receive the projection 9 disposed on one side and the projection 9 penetrating the insulating material 7. A plurality of conductive plates 6, 6, 6... Formed of holes 10 and excluding the conductive plates 6, 6 at both ends in the stacking direction are arranged on one side of the slits 8, 8, 8. Projecting protrusions 9, 9, 9 ... and press-fitting holes 10, 10, 10 ... arranged on the other side of the slits 8, 8, 8 ... so as to receive the protrusions 9, 9, 9 ... Is provided.

積層方向両端の導電板6,6には、図2の左端位置に示すように、完成後の積層コイルを外部回路と接続するために外側方に延出する接続端子部6a…が設けられるので、前記突部9および前記圧入孔10のいずれか一方が設けられるだけであり、前記突部9および前記圧入孔の両方が設けられることはない。   As shown at the left end position in FIG. 2, the conductive plates 6 and 6 at both ends in the stacking direction are provided with connection terminal portions 6a... Extending outward to connect the completed stacked coil to an external circuit. Only one of the protrusion 9 and the press-fitting hole 10 is provided, and neither the protrusion 9 nor the press-fitting hole is provided.

積層コイルを製造するにあたっては、図3で示すような製造装置が用いられるものであり、この製造装置は、帯状の導電金属を巻き上げた金属素材ロール24から巻きほどいた帯状の金属素材22ならびに帯状の絶縁シートを巻き上げた絶縁素材ロール25から巻きほどいて金属素材22の一面(この実施の形態では下面)に対向させるようにした帯状の絶縁素材23Aを上下で対をなす複数組のローラ12,13…間を通すことで矯正する矯正装置17と、その矯正装置17を通ることで帯状の金属素材22の一面に絶縁素材23Aを重ねて形成された帯状の二重素材11Aを上下で対をなすローラ14,15で挟んで送る送り装置18と、送り装置18から送られて来る前記二重素材11Aに部分的なプレス加工を行う順送プレス装置19と、順送プレス装置19でのプレス加工後に一面に絶縁材7,7,7…が重ねられた状態にある導電板6,6,6…を打ち抜いて型枠内に積層した後に積層状態にある複数枚の前記導電板6,6,6…および前記絶縁材7,7,7…を積層方向に圧縮して圧入組み立てする積層装置20と、積層装置20での圧入組み立てによって製造された積層コイルを搬出するコンベア等の搬出装置(図示せず)とを備え、前記矯正装置17、前記送り装置18、前記順送プレス装置19、前記積層装置20および前記搬出装置の一連の作動は制御装置21で自動制御される。   In manufacturing the laminated coil, a manufacturing apparatus as shown in FIG. 3 is used, and this manufacturing apparatus uses a band-shaped metal material 22 unrolled from a metal material roll 24 obtained by winding a band-shaped conductive metal, and a band-shaped coil. A plurality of pairs of rollers 12 that are paired up and down with a strip-shaped insulating material 23A that is unwound from an insulating material roll 25 on which the insulating sheet is wound up and opposed to one surface (in this embodiment, the lower surface) of the metal material 22; 13... A pair of a straightening device 17 that corrects by passing through and a belt-like double material 11 </ b> A formed by overlapping an insulating material 23 </ b> A on one surface of the belt-like metal material 22 by passing through the straightening device 17. A feeding device 18 that is sandwiched between the forming rollers 14 and 15 and a progressive press device 1 that performs partial pressing on the double material 11A that is fed from the feeding device 18. After the press working by the progressive press 19, the conductive plates 6, 6, 6... In which the insulating materials 7, 7, 7. A plurality of the conductive plates 6, 6, 6... And the insulating materials 7, 7, 7... A series of operations of the straightening device 17, the feeding device 18, the progressive press device 19, the laminating device 20, and the carry-out device. 21 is automatically controlled.

前記二重素材11Aに部分的なプレス加工を行う前記順送プレス装置19は、突部形成工程行程、圧入孔穿孔工程および切り出し工程を実行するのであるが、それらの工程を実行する前に、二重素材11Aから導電板6,6,6…を切り出すことで生じる駄肉となる部分で前記二重素材11Aに位置決め孔を穿孔する工程を前記順送プレス装置19は実行する。前記位置決め孔は、たとえば矩形状の前記導電板6,6,6…の周囲の四隅に穿孔され、それらの位置決め孔に、前記順送プレス装置19が備える位置決めピンを嵌装することで、前記送り装置18から送られて来る二重素材11Aが前記順送プレス装置19でのプレス加工時に確実に位置決め保持されることになる。それによって精度のよい導電板6,6,6…が形成され、ひいては積層コイルが精度よく製造されることになる。   The progressive press device 19 that performs partial pressing on the double material 11A performs a protrusion forming step, a press-fitting hole punching step, and a cutting step, but before performing these steps, The progressive press device 19 executes a step of drilling a positioning hole in the double material 11A at a portion that becomes waste caused by cutting the conductive plates 6, 6, 6... From the double material 11A. The positioning holes are drilled in, for example, four corners around the rectangular conductive plates 6, 6, 6, and the positioning pins provided in the progressive press device 19 are fitted into the positioning holes, The double material 11 </ b> A sent from the feeding device 18 is surely positioned and held at the time of pressing by the progressive press device 19. Thereby, the conductive plates 6, 6, 6... With high accuracy are formed, and as a result, the laminated coil is manufactured with high accuracy.

前記突部形成工程は、導電金属から成る帯状の金属素材22の一面に絶縁素材23Aを重ねて成る帯状の前記二重素材11Aに、複数の前記導電板6,6,6…に個別に対応した前記突部9,9,9…を、前記金属素材22の他面から突出するように形成する工程である。   The protrusion forming step individually corresponds to the plurality of conductive plates 6, 6, 6,. In this step, the protrusions 9, 9,... Are formed so as to protrude from the other surface of the metal material 22.

前記圧入孔穿孔工程は、複数の前記導電板6,6,6…に個別に対応した前記圧入孔10,10,10…を、前記二重素材11Aに穿孔する工程であり、この圧入孔穿孔工程で前記金属素材22および前記絶縁素材23Aを貫通するようにして前記圧入孔10,10,10…が形成される。   In the press-fitting hole drilling step, the press-fitting holes 10, 10, 10... Individually corresponding to the plurality of conductive plates 6, 6, 6,. In the process, the press-fitting holes 10, 10, 10 ... are formed so as to penetrate the metal material 22 and the insulating material 23A.

而して前記順送プレス装置19は、積層コイルにおいて積層方向の一端に位置する導電板6を形成する部分の前記二重素材11Aには、前記突部形成工程で前記突部9を形成するものの前記圧入孔穿孔工程で圧入孔10を穿孔することはなく、また前記積層方向の他端に位置する導電板6を形成する部分の前記二重素材11Aには、前記圧入孔穿孔工程で前記圧入孔10を穿孔するものの前記突部形成工程で前記突部9を形成することはない。   Thus, the progressive press device 19 forms the protrusions 9 in the protrusion forming step in the portion of the double material 11A where the conductive plate 6 located at one end in the stacking direction in the laminated coil is formed. However, in the press-fitting hole drilling step, the press-fitting hole 10 is not drilled, and the portion of the double material 11A forming the conductive plate 6 located at the other end in the stacking direction has the above-mentioned press-fitting hole drilling step. Although the press-fitting hole 10 is drilled, the protrusion 9 is not formed in the protrusion forming step.

前記切り出し工程は、一部がスリット8,8,8…で分断された環状であって前記突部9,9,9…および前記圧入孔10,10,10…を前記スリット8,8,8…の両側に有する複数枚の前記導電板6,6,6…ならびにそれらの導電板6,6,6…の一面に重なる前記絶縁材7,7,7…を前記二重素材11Aから切り出す工程である。   The cutting step is an annular part of which is partially divided by slits 8, 8, 8... And the projections 9, 9, 9... And the press-fitting holes 10, 10, 10. ... a plurality of the conductive plates 6, 6, 6 ... on both sides of the ... and the insulating material 7, 7, 7 ... that overlaps one surface of the conductive plates 6, 6, 6 ... from the double material 11A. It is.

また前記順送プレス装置19は、その切り出し工程で積層コイルにおいて積層方向の両端に位置する導電板6,6を前記二重素材11Aから切り出すにあたっては、前記接続端子部6a…を一体に有するようにして導電板6,6を切り出す。   Further, the progressive press device 19 integrally includes the connection terminal portions 6a when the conductive plates 6 and 6 positioned at both ends in the lamination direction in the laminated coil are cut out from the double material 11A in the cutting step. Then, the conductive plates 6 and 6 are cut out.

なお前記順送プレス装置19から前記積層装置20に導電板6,6,6…を容易に搬送するために、前記順送プレス装置19での前記切り出し工程の終了後に、この実施の形態では、導電板6,6,6…のおおよその内外形を形成した後も依然として導電板6,6,6…を二重素材11Aに保持するために、二重素材11Aのうち駄肉となる部分と、前記導電板6,6,6…とは、狭隘な枝部(図示せず)で連結されたままである。   In order to easily convey the conductive plates 6, 6, 6,... From the progressive press device 19 to the laminating device 20, after the cutting process in the progressive press device 19, In order to hold the conductive plates 6, 6, 6, etc. in the double material 11 </ b> A even after the approximate inner shape of the conductive plates 6, 6, 6, is formed, The conductive plates 6, 6, 6... Remain connected with narrow branches (not shown).

また前記突部形成工程は、突部9,9,9…の形成時にその突部9,9,9…の周囲で二重素材11Aが寄り集まるので、導電板6,6,6…の内形および外形を切り出す前記切り出し工程に先んじて前記突部9,9,9…を形成することが望ましい。   In the protrusion forming step, the double material 11A gathers around the protrusions 9, 9, 9... When forming the protrusions 9, 9, 9. It is desirable to form the protrusions 9, 9, 9... Prior to the cutting step of cutting out the shape and outer shape.

積層装置20は、前記順送プレス装置19でのプレス加工後に、積層工程および圧入組立工程を実行するものであり、前記積層工程は、前記順送プレス装置19での切り出し工程で切り出した複数枚の前記導電板6,6,6…を相互に対応する前記突部9,9,9…および前記圧入孔10,10,10…を対向させるようにしつつ相互間に前記絶縁材7,7,7…を挟むようにして順次積層する工程である。   The laminating apparatus 20 executes a laminating process and a press-fitting assembly process after the press working in the progressive press apparatus 19, and the laminating process includes a plurality of sheets cut out in the cut out process in the progressive press apparatus 19. Of the conductive plates 6, 6, 6... And the press-fitting holes 10, 10, 10. This is a step of sequentially laminating 7.

前記圧入組立工程は、前記突部9,9,9…を前記圧入孔10,10,10…に圧入するようにしつつ、積層状態にある複数枚の前記導電板6,6,6…を上方もしくは下方から油圧等で積層方向に圧縮して積層コイルを形成する工程であり、この圧入組立工程で、積層方向で隣接する導電板6,6の一方のスリット8の一側と、他方の前記導電板6の前記スリット8の他側とが、電気的接続を得るようにして圧入接合部5で接合されることになる。   In the press-fitting assembly step, the plurality of conductive plates 6, 6, 6... In the stacked state are moved upward while the projections 9, 9,... Are press-fitted into the press-fitting holes 10, 10, 10. Alternatively, it is a step of forming a laminated coil by compressing in the laminating direction with hydraulic pressure or the like from below, and in this press-fitting assembly step, one side of one slit 8 of the conductive plates 6 and 6 adjacent in the laminating direction The other side of the slit 8 of the conductive plate 6 is joined at the press-fit joint 5 so as to obtain electrical connection.

次にこの第1の実施の形態の作用について説明すると、積層コイルは、環状であるとともに一部がスリット8,8,8…で分断された形状を有する複数枚の導電板6,6,6…が、前記スリット8,8,8…の位置を順次オフセットするとともに各導電板6,6,6…の一面に重ねた絶縁材7,7,7…を積層方向で隣接する他の導電板6,6,6…の他面に対向させるようにして積層され、積層方向で隣接する前記導電板6,6のうち一方の前記導電板6の前記スリット8の一側と、他方の前記導電板6の前記スリット8の他側とが、電気的接続を得るようにして圧入接合部5で接合されて成るので、溶接、接着またはんだ付け等の手間のかかる作業が不要であり、通電経路が螺旋状となるような電気的接続が容易に得られるようにして、安価な積層コイルを得ることができる。   Next, the operation of the first embodiment will be described. The laminated coil is a plurality of conductive plates 6, 6, 6 having an annular shape and a part of which is divided by slits 8, 8, 8. .., But sequentially offset the positions of the slits 8, 8, 8... And other conductive plates adjacent to each other in the laminating direction with the insulating materials 7, 7, 7. 6, 6, 6... Are laminated so as to be opposed to the other surface, and one side of the slit 8 of the conductive plate 6 and the other conductive layer among the conductive plates 6 and 6 adjacent in the stacking direction. Since the other side of the slit 8 of the plate 6 is joined by the press-fit joint portion 5 so as to obtain an electrical connection, laborious work such as welding, adhesion or soldering is unnecessary, and the energization path So that electrical connection can be easily obtained in a spiral shape, It can be obtained valence laminated coil.

また前記圧入接合部5が、積層方向で隣接する前記導電板6,6の一方の前記他面に形成されて形成されて他方の前記導電板6側に突出するとともに前記スリット8の一側に配置される突部9と、前記絶縁材7を貫通する前記突部9を受け入れるようにして他方の前記導電板6に形成されて前記スリット8の他側に配置される圧入孔10とから成るので、積層方向で隣接する導電板6,6同士の電気的接続を容易に達成することができる。   Further, the press-fitting joint 5 is formed on one of the other surfaces of the conductive plates 6 and 6 adjacent in the stacking direction, protrudes to the other conductive plate 6 side, and on one side of the slit 8. And a press-fitting hole 10 formed on the other conductive plate 6 so as to receive the protrusion 9 penetrating the insulating material 7 and disposed on the other side of the slit 8. Therefore, electrical connection between the conductive plates 6 and 6 adjacent in the stacking direction can be easily achieved.

また積層コイルを製造するにあたっては、導電金属から成る帯状の金属素材22の一面に帯状の絶縁素材23Aを重ねて成る帯状の二重素材11Aに複数の前記導電板6,6,6…に個別に対応した前記突部9,9,9…を前記金属素材22の他面から突出するように形成する突部形成工程と、複数の前記導電板6,6,6…に個別に対応した前記圧入孔10,10,10…を前記二重素材11Aに穿孔する圧入孔穿孔工程と、一部がスリット8,8,8…で分断された環状であって前記突部9,9,9…および前記圧入孔10,10,10…を前記スリット8,8,8…の両側に有する複数枚の前記導電板6,6,6…ならびにそれらの導電板6,6,6…の一面に重なる前記絶縁材7,7,7…を前記二重素材11Aから切り出す切り出し工程と、該切り出し工程で切り出した複数枚の前記導電板6,6,6…を相互に対応する前記突部9,9,9…および前記圧入孔10,10,10…を対向させるようにしつつ相互間に前記絶縁材7,7,7…を挟むようにして順次積層する積層工程と、前記突部9,9,9…を前記圧入孔10,10,10…に圧入しつつ積層状態にある複数枚の前記導電板6,6,6…を積層方向に圧縮して積層コイルを形成する圧入組立工程とを実行するので、絶縁材7,7,7…を挟むようにして積層される複数枚の導電板6,6,6…同士の電気的接続を得るにあたって絶縁材7,7,7…の一部を剥離させる専用作業が不要であり、絶縁材7,7,7…の一部を剥離、除去するといった手間のかかる作業を不要として製作工程の短縮を図り、積層コイルを安価に製作することができる。   In manufacturing a laminated coil, a plurality of conductive plates 6, 6, 6... Are individually formed on a belt-like double material 11 A formed by superposing a belt-like insulating material 23 A on one surface of a belt-like metal material 22 made of a conductive metal. Are formed so as to protrude from the other surface of the metal material 22, and the plurality of conductive plates 6, 6, 6,. A press-fitting hole drilling step for punching the press-fitting holes 10, 10, 10... Into the double material 11A and an annular part of which is divided by slits 8, 8, 8. And the press-fitting holes 10, 10, 10... On both sides of the slits 8, 8, 8... And a plurality of the conductive plates 6, 6, 6. Cutting out the insulating materials 7, 7, 7 ... from the double material 11A .., And the plurality of conductive plates 6, 6, 6... Cut out in the cut-out step, the protrusions 9, 9, 9... And the press-fitting holes 10, 10, 10. While being laminated, the insulating materials 7, 7, 7,... Are sandwiched in sequence, and the protrusions 9, 9, 9... Are pressed into the press-fitting holes 10, 10, 10,. A plurality of conductive plates 6, 6,... Are compressed in the stacking direction to form a laminated coil, so that a plurality of sheets stacked with the insulating materials 7, 7,. In order to obtain electrical connection between the conductive plates 6, 6, 6..., There is no need for a dedicated work for peeling off a part of the insulating materials 7, 7, 7. This eliminates the time-consuming work of removing and shortening the production process. The coil can be manufactured at low cost.

また帯状の前記二重素材11Aを、金属素材ロール24から巻きほどいた帯状の前記金属素材22の一面に、絶縁素材ロール25から巻きほどいた帯状の前記絶縁素材23Aを重ね合わせて形成するので、二重素材11Aを容易に形成することができる。   Further, since the band-shaped double material 11A is formed by superposing the band-shaped insulating material 23A unwound from the insulating material roll 25 on one surface of the band-shaped metal material 22 unwound from the metal material roll 24, The double material 11A can be easily formed.

さらに積層コイルを製造するための矯正装置17、送り装置18、順送プレス装置19、積層装置20および搬出装置の一連の作動を制御装置21で自動制御することによって、効率良く積層コイルを製造することができる。   Furthermore, the control device 21 automatically controls a series of operations of the straightening device 17, the feeding device 18, the progressive press device 19, the laminating device 20, and the carry-out device for producing the laminated coil, thereby efficiently producing the laminated coil. be able to.

上記実施の形態では、金属素材22に内形、外形、突部9および圧入孔10を形成する際に金属素材22および絶縁素材23Aに重ねた状態で同時にプレス加工を行うようにしたが、前記金属素材22から突部9,9,9…および圧入孔10,10,10…を有する導電板6,6,6…を形成する工程と、前記絶縁素材23Aから前記導電板6,6,6…に対応する内形、外形および圧入孔10,10,10…を有する絶縁材7,7,7…を形成する工程とを平行して実行し、型枠内で導電板6,6,6…の一面に絶縁材7,7,7…を重ねるようにして導電板6,6,6…および絶縁材7,7,7…を積層するようにしてもよい。   In the above embodiment, when forming the inner shape, the outer shape, the protrusion 9 and the press-fitting hole 10 in the metal material 22, the press work is simultaneously performed in a state where the metal material 22 and the insulating material 23A are overlapped. The conductive plates 6, 6, 6... Having the protrusions 9, 9, 9... And the press-fitting holes 10, 10, 10 ... from the metal material 22, and the conductive plates 6, 6, 6 from the insulating material 23A. Are formed in parallel with the step of forming insulating materials 7, 7, 7 ... having inner shapes, outer shapes and press-fitting holes 10, 10, 10 ... corresponding to. The conductive plates 6, 6, 6... And the insulating materials 7, 7, 7.

本発明の第2の実施の形態について図4を参照しながら説明するが、図1〜図3で示した第1の実施の形態に対応する部分には同一の参照符号を付して図示するのみとし、詳細な説明は省略する。   A second embodiment of the present invention will be described with reference to FIG. 4, and the same reference numerals are given to the portions corresponding to the first embodiment shown in FIGS. 1 to 3. Detailed description will be omitted.

積層コイルを製造するにあたっては、帯状の金属素材22の一面に絶縁素材である絶縁コーティング23Bを予め被着して成る二重素材11Bが準備されるものであり、積層コイルの製造装置は、二重素材ロール26から巻きほどいた前記二重素材11Bを上下で対をなす複数組のローラ12,13…間を通すことで矯正する矯正装置17と、その矯正装置17を通った帯状の前記二重素材11Bを上下で対をなすローラ14,15で挟んで送る送り装置18と、送り装置18から送られて来る前記二重素材11Bに部分的なプレス加工を行う順送プレス装置19と、順送プレス装置19でのプレス加工後に前記絶縁コーティング23Bから成る絶縁材7,7,7…が一面に重ねられた状態にある導電板6,6,6…を打ち抜いて型枠内に積層した後に積層状態にある複数枚の前記導電板6,6,6…および前記絶縁材7,7,7…を積層方向に圧縮して圧入組み立てする積層装置20と、積層装置20での圧入組み立てによって製造された積層コイルを搬出するコンベア等の搬出装置(図示せず)とを備え、前記矯正装置17、前記送り装置18、前記順送プレス装置19、前記積層装置20および前記搬出装置の一連の作動は制御装置21で自動制御される。   In manufacturing a laminated coil, a double material 11B is prepared by previously applying an insulating coating 23B, which is an insulating material, on one surface of a strip-shaped metal material 22. A straightening device 17 that corrects the double material 11B unwound from the heavy material roll 26 by passing between a plurality of pairs of rollers 12, 13,... A feeding device 18 that feeds the heavy material 11B sandwiched between upper and lower rollers 14 and 15, a progressive press device 19 that performs partial pressing on the double material 11B sent from the feeding device 18, and After the press working in the progressive press 19, the conductive plates 6, 6, 6... In which the insulating materials 7, 7,. .., And a plurality of the conductive plates 6, 6, 6... And the insulating materials 7, 7, 7. And a carry-out device (not shown) such as a conveyor for carrying out the laminated coil manufactured by the above-described correction device 17, the feeding device 18, the progressive press device 19, the lamination device 20, and a series of the carry-out devices. Is automatically controlled by the control device 21.

この第2の実施の形態によれば、二重素材11Bが、帯状の金属素材22の一面に絶縁コーティング23Bを予め被着したものであるので、二重素材11Bを形成する工程を簡略化することができ、より安価に積層コイルを製造することができる。   According to the second embodiment, since the double material 11B is obtained by previously applying the insulating coating 23B on one surface of the belt-like metal material 22, the process of forming the double material 11B is simplified. Therefore, the laminated coil can be manufactured at a lower cost.

以上、本発明の実施の形態について説明したが、本発明は上記実施の形態に限定されるものではなく、特許請求の範囲に記載された本発明を逸脱することなく種々の設計変更を行うことが可能である。   Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. Is possible.

5・・・圧入接合部
6・・・導電板
7・・・絶縁材
8・・・スリット
9・・・突部
10・・・圧入孔
11A,11B・・・二重素材
22・・・金属素材
23A,23B・・・絶縁素材
24・・・金属素材ロール
25・・・絶縁素材ロール
5 ... Press-fit joint 6 ... Conductive plate 7 ... Insulating material 8 ... Slit 9 ... Projection 10 ... Press-fit holes 11A, 11B ... Double material 22 ... Metal Material 23A, 23B ... Insulating material 24 ... Metal material roll 25 ... Insulating material roll

Claims (4)

環状であるとともに一部がスリット(8)で分断される複数枚の導電金属製の導電板(6)が、前記スリット(8)の位置を順次オフセットしつつ積層され、その積層状態での通電経路を螺旋状とすべく積層方向で隣接する前記導電板(6)同士が前記スリット(8)の一側および他側で接合される積層コイルにおいて、
複数枚の前記導電板(6)が、その一面に重ねた絶縁材(7)を積層方向で隣接する他の導電板(6)の他面に対向させるようにして積層され、積層方向で隣接する前記導電板(6)のうち一方の前記導電板(6)の前記スリット(8)の一側と、他方の前記導電板(6)の前記スリット(8)の他側とが、積層方向で隣接する前記導電板(6)の一方に形成されて他方の前記導電板(6)側に突出するとともに前記スリット(8)の一側に配置される突部(9)と、前記絶縁材(7)を貫通する前記突部(9)を受け入れるようにして前記他方の前記導電板(6)に形成されて前記スリット(8)の他側に配置される圧入孔(10)とから電気的接続を得るようにして圧入接合部(5)で圧入接合されていることを特徴とする積層コイル。
A plurality of conductive metal conductive plates (6) that are annular and partly divided by slits (8) are stacked while sequentially offsetting the positions of the slits (8), and energization in the stacked state is performed. In the laminated coil in which the conductive plates (6) adjacent in the laminating direction to join the path in a spiral shape are joined on one side and the other side of the slit (8),
A plurality of the conductive plates (6) are stacked such that the insulating material (7) stacked on one surface is opposed to the other surface of the other conductive plate (6) adjacent in the stacking direction, and is adjacent in the stacking direction. One side of the slit (8) of the one conductive plate (6) and the other side of the slit (8) of the other conductive plate (6) are stacked in the stacking direction. A protrusion (9) formed on one of the adjacent conductive plates (6) and protruding toward the other conductive plate (6) and disposed on one side of the slit (8), and the insulating material Electricity is generated from a press-fitting hole (10) formed on the other conductive plate (6) and arranged on the other side of the slit (8) so as to receive the protrusion (9) passing through (7). laminated coil according to claim Tei Rukoto is press bonded by press-bonding portion so as to obtain a connection (5).
請求項記載の積層コイルを製造するための積層コイルの製造方法であって、導電金属から成る帯状の金属素材(22)の一面に絶縁素材(23A,23B)を重ねて成る帯状の二重素材(11A,11B)に複数の前記導電板(6)に個別に対応した前記突部(9)を前記金属素材(22)の一面から突出するように形成する突部形成工程と、複数の前記導電板(6)に個別に対応した前記圧入孔(10)を前記二重素材(11A,11B)に穿孔する圧入孔穿孔工程と、一部がスリット(8)で分断された環状であって前記突部(9)および前記圧入孔(10)を前記スリット(8)の両側に有する複数枚の前記導電板(6)ならびにそれらの導電板(6)の一面に重なる前記絶縁材(7)を前記二重素材(11A,11B)から切り出す切り出し工程と、該切り出し工程で切り出した複数枚の前記導電板(6)を相互に対応する前記突部(9)および前記圧入孔(10)を対向させるようにしつつ前記導電板(6)相互間に前記絶縁材(7)を挟むようにして順次積層する積層工程と、前記突部(9)を前記絶縁材(7)に貫通するようにして前記圧入孔(10)に圧入しつつ積層状態にある複数枚の前記導電板(6)を積層方向に圧縮して積層コイルを形成する圧入組立工程とを実行することを特徴とする積層コイルの製造方法。 A method for producing a laminated coil for producing a laminated coil according to claim 1, wherein the belt-like double layer is formed by superposing an insulating material (23A, 23B) on one surface of a belt-like metal material (22) made of a conductive metal. A protrusion forming step of forming the protrusions (9) individually corresponding to the plurality of conductive plates (6) to the material (11A, 11B) so as to protrude from one surface of the metal material (22); A press-fitting hole drilling step in which the press-fitting hole (10) individually corresponding to the conductive plate (6) is drilled in the double material (11A, 11B), and an annular partly divided by a slit (8). The plurality of conductive plates (6) having the protrusions (9) and the press-fitting holes (10) on both sides of the slit (8) and the insulating material (7) overlapping one surface of the conductive plates (6) ) From the double material (11A, 11B) And cutting process step, the conductive plates of the plurality of cut out in the cutting process step (6), said projection (9) corresponding to each other and the press-in hole (10) the conductive plate while so as to face the (6) A laminating step of sequentially laminating the insulating material (7) between them, and a laminating state while press-fitting the protrusion (9) into the press-fitting hole (10) so as to penetrate the insulating material (7) And a press-fitting assembly process of forming a laminated coil by compressing the plurality of conductive plates (6) in the laminating direction. 前記帯状の前記二重素材(11A)を、金属素材ロール(24)から巻きほどいた帯状の前記金属素材(22)の一面に、絶縁素材ロール(25)から巻きほどいた帯状の前記絶縁素材(23A)を重ね合わせて形成することを特徴とする請求項記載の積層コイルの製造方法。 The band-shaped insulating material (11A) is unrolled from the insulating material roll (25) on one surface of the band-shaped metal material (22) unwound from the metal material roll (24). 23. The method of manufacturing a laminated coil according to claim 2, wherein 23A) is overlapped. 前記帯状の前記二重素材(11B)が、帯状の金属素材(22)の一面に絶縁素材である絶縁コーティング(23B)を予め被着したものであることを特徴とする請求項記載の積層コイルの製造方法。
The strip of the duplex material (11B) is stacked according to claim 2, wherein the one surface of the strip-like metal material (22) is obtained by pre-depositing a dielectric material in which the insulating coating (23B) Coil manufacturing method.
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