JPH0546688B2 - - Google Patents
Info
- Publication number
- JPH0546688B2 JPH0546688B2 JP1266185A JP1266185A JPH0546688B2 JP H0546688 B2 JPH0546688 B2 JP H0546688B2 JP 1266185 A JP1266185 A JP 1266185A JP 1266185 A JP1266185 A JP 1266185A JP H0546688 B2 JPH0546688 B2 JP H0546688B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- coils
- view
- conductor
- insulating sheet
- 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.)
- Expired - Lifetime
Links
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Combinations Of Printed Boards (AREA)
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、例えば、リニアモータ、ブラシレス
モータ、ムービングコイル、高周波トランス用コ
イル等に用いられるコイル積層体の改良に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to improvements in coil laminates used, for example, in linear motors, brushless motors, moving coils, coils for high-frequency transformers, and the like.
従来この種コイル積層体を製造する方法として
は、一般的に巻線方式コイルが多用されてきた。
しかしながら、この方法で製造されるコイル積層
体は、コイル導体の容積占有効率（巻線密度）が
低いため、電子機器等に用いられる例えばリニア
モータ、ブラシレスモータ、ムービングコイル、
磁気ヘツド、高周波トランスもしくは発電用コイ
ル等に近年特に要求される小形化、偏平化設計等
を実現することが困難であり、またコイルの重な
り、整列等に不整があつて組立精度、特性維持等
にも問題があり、これを打開するためフアインパ
ターンコイル（シート状コイル）構造が提案され
ている。
Conventionally, as a method for manufacturing this type of coil laminate, wire-wound coils have generally been frequently used.
However, the coil laminate manufactured by this method has a low volume occupation efficiency (winding density) of the coil conductor, so it is used in electronic devices such as linear motors, brushless motors, moving coils, etc.
It is difficult to realize the miniaturization and flattening designs that are particularly required in recent years for magnetic heads, high-frequency transformers, and power generation coils, etc., and there are irregularities in overlapping and alignment of coils, making it difficult to maintain assembly accuracy and characteristics. There are also problems, and to overcome this problem, a fine pattern coil (sheet-like coil) structure has been proposed.
これらフアインパターンコイルを複数個積層し
て積層フアインパターンコイルの集積構体を形成
する場合、各フアインパターンコイル間の電機的
接続を行うために、各パターンコイルより最低２
本のリード線を引出し、それらを各個にはんだ付
けを施して接続していた。したがつて、これら積
層数が多くなればそれに比例して接続用の空間も
増大する。元来、この接続部はコイルとしての電
（磁）気的機能には関与しない部分であり、この
空間が増大することは前記導体の容積占有率を向
上させて小形化を実現する目的に反することにな
る。 When stacking a plurality of these fine pattern coils to form an integrated structure of laminated fine pattern coils, at least two
I pulled out the lead wires from the book and connected them to each other by soldering them individually. Therefore, as the number of stacked layers increases, the space for connection increases proportionally. Originally, this connection part is not involved in the electric (magnetic) function of the coil, and increasing this space goes against the purpose of increasing the volume occupancy of the conductor and realizing miniaturization. It turns out.
第１図に従来の積層フアインパターンコイルの
一例の斜視図を示す。１は絶縁シート、２はその
上にプリント法等により形成された各導体コイル
で、個々のフアインパターンコイルを形成してい
る。これらｎ個（枚）のフアインパターンコイル
３1〜３ｎからはそれぞれリード線４がそのコイ
ル枚数（ｎ）だけ積層体から吐出するように配設
され、その積層枚数に比例してはんだ付け個所も
増加し、同時に前記機能には関与しない無駄な接
続空間が増加するという欠点がある。 FIG. 1 shows a perspective view of an example of a conventional laminated fine pattern coil. Reference numeral 1 denotes an insulating sheet, and 2 denotes conductor coils formed thereon by a printing method or the like, forming individual fine pattern coils. Lead wires 4 are disposed from each of these n fine pattern coils 31 to 3n so that the number of coils (n) is discharged from the stacked body, and the number of soldering points is proportional to the number of stacked coils. This also has the drawback that the amount of wasted connection space that is not involved in the above functions increases.
以上のような欠点を改良するために、連続シー
ト上の折たたみ式フアインパターンコイル集積体
構造が提案されている。第２図ないし第４図に、
この従来提案によるフアインパターンコイル積層
体の一構成例を示す。第２図はシートの展開破断
平面図、第３図はシート折たたみ過程の斜線図、
第４図は各シート折曲げ部の拡大断面図（誇張し
て示す）である。３′1，３′2，〜３′ｎはそれぞ
れｎ個のフアインパターンコイルで、これらはす
べて一枚の連続した絶縁シート８上のそれぞれ直
線Ｆで等分に区画されたｎ個の部分の表裏に、導
体７によりコイルが形成されている。５は、それ
ぞれ第１／最終コイル３′1／３′ｎに設けられた
端子である。また６は、スポツト溶接等により形
成された各表／裏コイルの電気的接続部を示す。
直線Ｆは各コイル３ｎ間の折たたみ用折曲げ部
で、この直線部Ｆを挟んで対称に隣接する各コイ
ルの電気的接続部分９1，９2，〜９ｎが導体によ
り連結形成されている。これら絶縁シート８は、
第３図に示すように、各折曲げ部Ｆを順次に交互
に表／裏方向に折たたんで各対面を接着剤で接着
し、積層構体を形成するように構成されている。 In order to improve the above drawbacks, a foldable fine pattern coil assembly structure on a continuous sheet has been proposed. In Figures 2 to 4,
An example of the configuration of a fine pattern coil laminate according to this conventional proposal will be shown. Figure 2 is a developed and broken plan view of the sheet, Figure 3 is a diagonal diagram of the sheet folding process,
FIG. 4 is an enlarged cross-sectional view (exaggerated) of each sheet fold. 3' 1 , 3' 2 , ~3'n are n fine pattern coils, and these are all n parts equally divided by straight line F on one continuous insulating sheet 8. A coil is formed by the conductor 7 on the front and back sides. 5 are terminals provided on the first/final coils 3' 1 /3'n, respectively. Reference numeral 6 indicates electrical connections between the front and back coils formed by spot welding or the like.
The straight line F is a folding part between each coil 3n, and the electrical connection parts 9 1 , 9 2 , ~9n of each coil symmetrically adjacent to each other with this straight part F in between are connected and formed by a conductor. . These insulating sheets 8 are
As shown in FIG. 3, each folded portion F is sequentially and alternately folded in the front/back direction and each facing side is adhered with an adhesive to form a laminated structure.
しかしながら、このような提案例の構成にあつ
ては、折曲げ部の断面を第４図に示すように、各
コイル導体７間を接続する導体９1，９2、〜９ｎ
が、折曲げ作業条件によつては断線したり、絶縁
シート８が切損して導体部７が短絡したりする可
能性があるほか、この付近のコイル部導体７が、
折曲げ部分の影響を受けて変形し、積層時の密着
性を害なう等の問題などがあつて、未だ実用に供
されるには至つていない。 However, in the configuration of such a proposed example, as the cross section of the bent portion is shown in FIG .
However, depending on the bending work conditions, there is a possibility that the wire may break or the insulating sheet 8 may be damaged and the conductor section 7 may be short-circuited.
It has not yet been put to practical use because of problems such as deformation due to the bending part and impairing adhesion during lamination.
本発明は、以上のような局面にかんがみてなさ
れたもので、上述従来提案例の欠点を除去すると
同時に、コイルの接続に要する空間を最小とする
ことによつてコイル導体の容積占有率を向上し、
コイルの小型化、偏平化等に寄与し得る安価で信
頼性のあるコイル積層体の提供を目的としてい
る。
The present invention has been made in view of the above-mentioned circumstances, and at the same time eliminates the drawbacks of the above-mentioned conventional proposals, and at the same time improves the volume occupation rate of the coil conductor by minimizing the space required for connecting the coils. death,
The purpose of the present invention is to provide an inexpensive and reliable coil laminate that can contribute to the miniaturization and flattening of coils.
以下に本発明を実施例に基づいて説明する。第
５図は、本発明によるコイル積層体の一実施例の
展開破断平面図で、前述従来提案例第２図に相当
する図であり、同一もしくは相当構成要素は同一
もしくは相当符号で表わし、重複説明は省略す
る。１０1，１０2、〜１０ｎは、各隣接するコイ
ルを電気的に接続するための接続部分で、折曲げ
もしくは切断部F′直線を挟んで対称に形成され、
両者は従来提案例第２図におけるように互いに結
合されていない。第６図にこの部分の一方の拡大
平面図を示す。コイル導体７の先端の上記接続部
分１０ｎは面積が拡大され、その中心には穴１２
が穿設されている。また１１は、上記拡大接続部
分１０ｎを実質的に取囲むよう形成された導電性
接着剤はみ出し防止壁で、コイル導体７の形成工
程と同時に配設される。
The present invention will be explained below based on examples. FIG. 5 is a developed and broken plan view of one embodiment of the coil laminate according to the present invention, which corresponds to FIG. 2 of the conventionally proposed example described above, and the same or equivalent components are represented by the same or equivalent symbols, and the overlapping Explanation will be omitted. 10 1 , 10 2 , ~10n are connection parts for electrically connecting adjacent coils, and are formed symmetrically across the bent or cut part F' straight line,
Both are not coupled to each other as in the conventionally proposed example FIG. 2. FIG. 6 shows an enlarged plan view of one of this part. The area of the connection portion 10n at the tip of the coil conductor 7 is expanded, and a hole 12 is formed in the center.
is drilled. Reference numeral 11 denotes a conductive adhesive extrusion prevention wall formed to substantially surround the enlarged connection portion 10n, and is provided at the same time as the coil conductor 7 is formed.
第７図ａ図に、第６図の他の形状による実施例
平面図を示し、相当構成要素はａを附した相当符
号で表わす。第７図ｂはそのＢ−Ｂ線断面図であ
る。この実施例は、穴１２ａのまわりの導体高さ
を低くして凹部１２ｂを設けてある。 FIG. 7a shows a plan view of an embodiment having a different shape from that shown in FIG. 6, and corresponding components are indicated by corresponding symbols with an suffix "a". FIG. 7b is a sectional view taken along the line B-B. In this embodiment, the height of the conductor around the hole 12a is lowered to provide a recess 12b.
本実施例におけるコイル積層体は前記従来提案
例第３図のようにF′部折曲げによる折たたみ様式
によつて形成することもできるし、また、各Ｆ部
で切断して各フアインパターンコイルを各個に積
層することによつて形成してもよい。 The coil laminate in this embodiment can be formed in a folding manner by bending the F' part as shown in FIG. It may also be formed by individually stacking coils.
第８図に、上記積層体を絶縁シート８の各直線
部F′を切断して積層して形成した場合の要部拡大
破断断面図を示す、互いに積層されたそれぞれ対
面するフアインパターンコイル７は、シート上接
着剤によつて接着する。（例えばホツトプレス等
による）このシート状接着剤１３はフアンコイル
間の電気的接続部分１０ａは、穴１５で示すよう
に予めプレス等により打抜いて欠如させておき、
相対位置決めを行つて積層、過熱、圧着を実施す
る。この際、各電気接続部分１０ａ（第８図は、
第７図に示した接続部形状を使用した例を示す）
には、導電性接着剤１４を対面する各コイル導体
の穴１２ａおよびそのまわりの凹部１２ｂに充填
しておく。この導電性接着剤の充填量は、導通不
良を生じないよう十分の量とすることが必要であ
るが、その分配装置による適用方法もしくは加熱
圧着時のはみ出し等によつてコイル導体間の短絡
を生ずる可能性は、前記はみ出し防止壁１１，１
１ａによつて防止し得るため、接続の信頼性を確
保し得る十分の量を充填することができる。また
これらの電気的接続は、コイル積層体の内部で行
われるため無駄な空間を省くことができる。 FIG. 8 shows an enlarged cutaway sectional view of the main part of the laminate formed by cutting each linear portion F' of the insulating sheet 8 and laminating them. Fine pattern coils 7 facing each other are laminated. is adhered to the sheet using an adhesive. This sheet-like adhesive 13 (for example, by hot pressing) has the electrical connection portion 10a between the fan coils cut out by punching in advance by pressing, etc., as shown by holes 15.
Laminating, heating, and crimping are performed by relative positioning. At this time, each electrical connection portion 10a (FIG. 8 shows
An example using the connection shape shown in Figure 7 is shown)
First, the conductive adhesive 14 is filled in the holes 12a of each coil conductor facing each other and the recesses 12b around the holes. The amount of conductive adhesive filled must be sufficient to avoid conduction defects, but it is necessary to prevent short circuits between coil conductors by applying the adhesive using a dispensing device or by causing it to overflow during heat and pressure bonding. The possibility of this occurring is that the protrusion prevention walls 11, 1
Since this can be prevented by 1a, a sufficient amount can be filled to ensure the reliability of the connection. Further, since these electrical connections are made inside the coil stack, wasted space can be saved.
以上説明してきたように、この発明のコイル積
層体によれば、コイルに信頼性の高い電気的接続
が得られ、またこの接続のための外部空間を特別
に要しないため、コイル導体の容積占有率を向上
してコイルの小形化、偏平化等に低コストで寄与
することができる。
As explained above, according to the coil laminate of the present invention, a highly reliable electrical connection can be obtained to the coil, and since no special external space is required for this connection, the volume occupied by the coil conductor is It is possible to contribute to the miniaturization and flattening of the coil at low cost by improving the efficiency.
第１図は、従来の積層コイルの一例の斜視図、
第２図ないし第４図は従来の改良提案例のコイル
積層体の一構成例を示す図で、第２図は展開破断
平面図、第３図はシート折たたみ過程の斜視図、
第４図は折曲げ部の拡大断面図、第５図は、本発
明によるコイル積層体の一実施例の展開破断平面
図、第６図はその電気的接続部分の一方の拡大平
面図、第７図ａ，ｂはそれぞれ第６図の他の形状
による実施例平面図とそのＢ−Ｂ線断面図、第８
図は、本実施例積層体の要部拡大破断断面図であ
る。
３″1，３″2，〜，３″ｎ……フアイルパターン
コイル、７……コイル導体、８……絶縁シート、
１０1，１０2，〜，１０ｎ，１０an……電気的接
続部分、１１，１１ａ……導電性接着剤はみ出し
防止壁、１２，１２ａ……穴、１２ｂ……凹部、
１３……シート状接着剤、１４……導電性接着
剤、１５……穴。
FIG. 1 is a perspective view of an example of a conventional laminated coil;
2 to 4 are diagrams showing an example of the configuration of a coil laminate as a conventional improvement proposal, in which FIG. 2 is a developed and broken plan view, and FIG. 3 is a perspective view of the sheet folding process.
FIG. 4 is an enlarged sectional view of the bent portion, FIG. 5 is a developed and broken plan view of one embodiment of the coil laminate according to the present invention, FIG. 6 is an enlarged plan view of one of the electrical connection parts, and FIG. Figures 7a and 7b are a plan view of an embodiment with a different shape from Figure 6, a sectional view thereof taken along line B-B, and Figure 8.
The figure is an enlarged broken sectional view of the main part of the laminate of this example. 3″ 1 , 3″ 2 , ~, 3″n... File pattern coil, 7... Coil conductor, 8... Insulating sheet,
10 1 , 10 2 , ~, 10n, 10an... electrical connection portion, 11, 11a... conductive adhesive extrusion prevention wall, 12, 12a... hole, 12b... recess,
13... Sheet adhesive, 14... Conductive adhesive, 15... Hole.
Claims (1)
ート状コイルを積層して成るコイル積層体におい
て、コイルの電気的接続部分に対応する絶縁シー
ト部材の一部を欠如させ、かつ該接続部分の周囲
に接続剤はみ出し防止壁を設け、該接続部分同士
の接続を導電性接着剤により行うようにしたこと
を特徴とするコイル積層体。1. In a coil laminate consisting of stacked sheet coils mutually insulated by insulating sheet members, a part of the insulating sheet member corresponding to the electrically connected portion of the coil is missing, and a part of the insulating sheet member is removed around the connected portion. 1. A coil laminate, characterized in that a connecting agent extrusion prevention wall is provided, and the connecting portions are connected using a conductive adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1266185A JPS61172304A (en) | 1985-01-28 | 1985-01-28 | Coil laminated body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1266185A JPS61172304A (en) | 1985-01-28 | 1985-01-28 | Coil laminated body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61172304A JPS61172304A (en) | 1986-08-04 |
| JPH0546688B2 true JPH0546688B2 (en) | 1993-07-14 |
Family
ID=11811543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1266185A Granted JPS61172304A (en) | 1985-01-28 | 1985-01-28 | Coil laminated body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61172304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014167784A1 (en) | 2013-04-08 | 2014-10-16 | 株式会社神戸製鋼所 | Shape inspection device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4340928A1 (en) * | 1993-12-01 | 1995-06-08 | Ant Nachrichtentech | Shielded transformer and use |
-
1985
- 1985-01-28 JP JP1266185A patent/JPS61172304A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014167784A1 (en) | 2013-04-08 | 2014-10-16 | 株式会社神戸製鋼所 | Shape inspection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61172304A (en) | 1986-08-04 |
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