JPH05315178A - Manufacture of thin coil - Google Patents
Manufacture of thin coilInfo
- Publication number
- JPH05315178A JPH05315178A JP4146419A JP14641992A JPH05315178A JP H05315178 A JPH05315178 A JP H05315178A JP 4146419 A JP4146419 A JP 4146419A JP 14641992 A JP14641992 A JP 14641992A JP H05315178 A JPH05315178 A JP H05315178A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- electrode
- copper foil
- thin coil
- soldering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000011888 foil Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 16
- 238000004804 winding Methods 0.000 claims description 8
- 238000007751 thermal spraying Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 34
- 239000011889 copper foil Substances 0.000 abstract description 18
- 229910052802 copper Inorganic materials 0.000 abstract description 15
- 239000010949 copper Substances 0.000 abstract description 15
- 238000005476 soldering Methods 0.000 abstract description 12
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- 238000005507 spraying Methods 0.000 description 4
- 239000011162 core material Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Manufacture Of Motors, Generators (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、面対向型モータなどに
使用される薄型コイルの製造法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a thin coil used in a surface facing motor or the like.
【０００２】[0002]
【従来の技術】従来、上記薄型コイルの製造法として、
薄型コイルの材料となる銅箔等のシート状の金属箔に高
分子フィルム等を接着して絶縁層となし、その積層体の
一側縁に沿って銅等の電極用導体金属棒を半田付けによ
り接合したあと、積層体を芯材に巻回してから、その末
端に導体金属棒を前記と同様に半田付けにより接合し、
次に巻回体を芯材から抜き出して、所定の厚さに切断し
て薄型コイルとする製法が適用されている。2. Description of the Related Art Conventionally, as a method of manufacturing the above thin coil,
A polymer film is bonded to a sheet-shaped metal foil such as copper foil, which is a material for thin coils, to form an insulating layer, and a conductor metal rod for electrodes such as copper is soldered along one side edge of the laminate. After joining by, after winding the laminated body around the core material, the conductor metal rod is joined to the end by soldering in the same manner as above,
Next, a manufacturing method is applied in which the wound body is extracted from the core material and cut into a predetermined thickness to form a thin coil.
【０００３】[0003]
【発明が解決しようとする課題】上記製造法では、電極
用金属棒を銅箔に接合する工程に半田付けを適用してい
るが、この半田付けは手作業で行なわれており、作業性
および技術的にみて非常にやりずらく、手間のかかる作
業となっている。また、後工程を考えたとき、コイルの
リードフレームの接地や、ベース基板への接続工程で半
田付けが必要とされ、ここで折角接合された電極の半田
付け部分がリフロー（再溶融）し、電極クズレを起こす
欠点がある。In the above-mentioned manufacturing method, soldering is applied in the step of joining the metal rod for electrode to the copper foil, but this soldering is done by hand and the workability and It is technically very difficult and time-consuming. Also, when considering the post-process, soldering is required in the process of grounding the lead frame of the coil and in the process of connecting to the base substrate, and the soldered portion of the electrodes joined at a corner here reflows (remelts) There is a drawback that electrode scratches occur.
【０００４】[0004]
【発明の目的】本発明は、金属箔への電極形成作業を容
易に行なうことができ、しかも後工程のリフロー半田で
電極クズレを起こすことのない薄型コイルの製造法を提
供することを目的としている。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for manufacturing a thin coil which can easily perform an electrode forming operation on a metal foil and which does not cause electrode scratches in reflow soldering in a subsequent step. There is.
【０００５】[0005]
【課題を解決するための手段】本発明は、金属箔に絶縁
層を形成した積層体を巻回し、その巻回体を所定厚さに
切断して薄型コイルとする製造法において、前記積層体
の金属箔に、溶射法によって金属電極部を形成すること
を要旨としている。SUMMARY OF THE INVENTION The present invention is a method for producing a thin coil by winding a laminated body having an insulating layer formed on a metal foil and cutting the wound body to a predetermined thickness. The main point is to form a metal electrode portion on the metal foil by a thermal spraying method.
【０００６】[0006]
【作用】上記製造法に用いる溶射法とは、金属粉末を例
えばプラズマにて瞬間的に溶融させ、その融滴を噴射ノ
ズルでワークに圧着させる方法である。したがって、こ
の溶射法により形成された電極部は金属箔間に金属結合
されているので、耐熱性を有しており、後工程でのリフ
ロー半田で電極クズレを起こすことはない。The thermal spraying method used in the above-mentioned manufacturing method is a method in which metal powder is instantaneously melted by, for example, plasma, and the molten droplets are pressure-bonded to a work by an injection nozzle. Therefore, since the electrode portion formed by this thermal spraying method is metal-bonded between the metal foils, it has heat resistance and does not cause electrode scratches due to reflow soldering in a later step.
【０００７】[0007]
【実施例】図１に、銅箔に絶縁層を設けた積層体に、溶
射法により電極部を形成する工程を示す。同図におい
て、１は銅箔に絶縁層を形成した積層体であって、２は
その原反ロールである。銅箔には電解銅箔と圧延銅箔が
あるが、電解銅箔は圧延銅箔と違い、表面が粗の状態に
あるので、銅溶射時におけるアンカー効果により、良好
な密着強度が得られる。圧延銅箔の場合にはサンドブラ
スト処理（粗面処理）をすればよい。EXAMPLE FIG. 1 shows a step of forming an electrode portion by a thermal spraying method on a laminate having a copper foil provided with an insulating layer. In the figure, 1 is a laminate in which an insulating layer is formed on a copper foil, and 2 is its original roll. Copper foils include electrolytic copper foils and rolled copper foils. Unlike rolled copper foils, electrolytic copper foils have a rough surface, so good adhesion strength can be obtained due to the anchor effect during copper spraying. In the case of rolled copper foil, sandblasting (roughening) may be performed.
【０００８】溶射法により電極を形成するには、図１
（ａ）に示すように、原反ロールから引き出した積層体
の端部に、常法により２本のマスク３を形成し、次に図
１（ｂ）に示すように、溶射ノズル４より溶融銅をマス
ク間に噴射して、マスク間に溶融銅５を形成し、そのあ
と図１（ｃ）に示すように、マスクを除去することで、
銅箔上に金属結合した内側の銅電極５が形成する。In order to form an electrode by the thermal spraying method, as shown in FIG.
As shown in (a), two masks 3 are formed in the end portion of the laminated body pulled out from the original roll by a conventional method, and then melted by a thermal spray nozzle 4 as shown in FIG. 1 (b). By spraying copper between the masks to form molten copper 5 between the masks, and then removing the masks as shown in FIG. 1 (c),
An inner copper electrode 5 that is metal-bonded is formed on the copper foil.
【０００９】次に積層体を巻回に必要な長さにわたって
引き出し、絶縁層の一部を除去して露出させた銅箔部分
に外側の銅電極５’を形成する。Next, the laminated body is drawn out over a length required for winding, a part of the insulating layer is removed, and an outer copper electrode 5'is formed on the exposed copper foil part.
【００１０】上記のようにして電極形成した積層体は、
従来の薄型コイルの製造工程（巻回→キュア処理→スラ
イス→端面処理（エッチング）→端面絶縁コート→ホル
ダー挿入）に送って薄型コイルとする。The laminate having electrodes formed as described above is
The thin coil is sent to the conventional thin coil manufacturing process (winding → curing process → slicing → end face processing (etching) → end face insulating coat → holder insertion).
【００１１】上記実施例は、銅箔に銅電極を形成する場
合を例示したものであるが、使用する金属材は銅に制限
されるものではない。Although the above-mentioned embodiment illustrates the case where the copper electrode is formed on the copper foil, the metal material used is not limited to copper.
【００１２】なお、巻回時においては、図１（ｅ）に示
すように、内側の銅電極５は、巻芯治具６へのセット時
のストッパーの役割としての機能をもつ。図１（ｆ）は
巻芯治具から取外した薄型コイルを示す。During winding, as shown in FIG. 1 (e), the inner copper electrode 5 functions as a stopper when set on the winding core jig 6. FIG. 1F shows the thin coil removed from the winding jig.
【００１３】[0013]
【発明の効果】以上に述べたように、本発明によれば、
電極形成時の半田付け作業を省略できるため、薄型コイ
ル製造の低コスト化が実現できる。また、積層体の巻回
時には既に電極が形成されているため、薄型コイル製造
の自動化も可能となる。さらにまた、本発明によれば、
金属箔と電極を金属結合させているので、耐熱性があ
り、後工程でのリフロー半田で電極クズレが起きない。As described above, according to the present invention,
Since the soldering work at the time of forming the electrodes can be omitted, it is possible to reduce the cost of manufacturing the thin coil. In addition, since the electrodes are already formed when the laminated body is wound, it is possible to automate the manufacture of the thin coil. Furthermore, according to the present invention,
Since the metal foil and the electrode are metal-bonded, there is heat resistance, and electrode scratches do not occur in reflow soldering in a later process.
【図１】本発明の一実施例を示す薄型コイル製造工程図
である。FIG. 1 is a process drawing of a thin coil showing an embodiment of the present invention.
１ 銅箔に絶縁層を形成した積層体 ２ 積層体の原反ロール ３ マスク ４ 溶射ノズル ５ 溶射により形成した内側の銅電極 ５’ 溶射により形成した外側の銅電極 1 Laminated body in which an insulating layer is formed on copper foil 2 Original roll of laminated body 3 Mask 4 Spray nozzle 5 Inner copper electrode formed by spraying 5'Outer copper electrode formed by spraying
Claims (1)
し、その巻回体を所定厚さに切断して薄型コイルとする
製造法において、前記積層体の金属箔に、溶射法によっ
て金属電極部を形成することを特徴とする薄型コイルの
製造法。1. A method for producing a thin coil by winding a laminated body having an insulating layer formed on a metal foil and cutting the wound body into a thin coil by a thermal spraying method. A method for manufacturing a thin coil, which comprises forming a metal electrode portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4146419A JPH05315178A (en) | 1992-05-13 | 1992-05-13 | Manufacture of thin coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4146419A JPH05315178A (en) | 1992-05-13 | 1992-05-13 | Manufacture of thin coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05315178A true JPH05315178A (en) | 1993-11-26 |
Family
ID=15407268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4146419A Pending JPH05315178A (en) | 1992-05-13 | 1992-05-13 | Manufacture of thin coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05315178A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008117928A (en) * | 2006-11-02 | 2008-05-22 | Nissin Ion Equipment Co Ltd | Electromagnet, electromagnetic coil, and electromagnetic coil manufacturing method |
| JP2016115707A (en) * | 2014-12-11 | 2016-06-23 | Ckd株式会社 | Sheet for coil, coil, and manufacturing method of the same |
| US10043609B2 (en) | 2013-09-04 | 2018-08-07 | Ckd Corporation | Cooling structure for electromagnetic coil, and electromagnetic actuator |
| US10121590B2 (en) | 2014-12-11 | 2018-11-06 | Ckd Corporation | Coil sheet production method, and coil production method |
-
1992
- 1992-05-13 JP JP4146419A patent/JPH05315178A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008117928A (en) * | 2006-11-02 | 2008-05-22 | Nissin Ion Equipment Co Ltd | Electromagnet, electromagnetic coil, and electromagnetic coil manufacturing method |
| US10043609B2 (en) | 2013-09-04 | 2018-08-07 | Ckd Corporation | Cooling structure for electromagnetic coil, and electromagnetic actuator |
| JP2016115707A (en) * | 2014-12-11 | 2016-06-23 | Ckd株式会社 | Sheet for coil, coil, and manufacturing method of the same |
| US10121590B2 (en) | 2014-12-11 | 2018-11-06 | Ckd Corporation | Coil sheet production method, and coil production method |
| US10832853B2 (en) | 2014-12-11 | 2020-11-10 | Ckd Corporation | Coil and coil production method |
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