JPH03165016A - Resin-molded coil - Google Patents
Resin-molded coilInfo
- Publication number
- JPH03165016A JPH03165016A JP30535889A JP30535889A JPH03165016A JP H03165016 A JPH03165016 A JP H03165016A JP 30535889 A JP30535889 A JP 30535889A JP 30535889 A JP30535889 A JP 30535889A JP H03165016 A JPH03165016 A JP H03165016A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- interlayer insulating
- insulating paper
- voltage coil
- wire
- 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
- 239000011229 interlayer Substances 0.000 claims abstract description 32
- 238000004804 winding Methods 0.000 claims abstract description 17
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims 1
- 230000000630 rising effect Effects 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 230000037431 insertion Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、樹脂モールド形変成器等に使用される樹脂
モールド形コイルに係り、特にそのコイルの線ずれを防
止する手段に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a resin molded coil used in a resin molded transformer and the like, and particularly to a means for preventing wire misalignment of the coil.
従来、樹脂モールド形変成器として、例えば特開昭６２
−１３７８１４号公報に示されたものがある。Conventionally, as a resin mold type transformer, for example, JP-A-62
There is one shown in Japanese Patent No.-137814.
即ち、第７図は上記公報に示された従来の樹脂モールド
形変成器のコイル構造を示す縦断面図であり、図におい
て、（１）は低圧コイル、■は高圧コイル、（３）は主
絶縁層、沌は上記高圧コイル■の層間に挿入された層間
絶縁紙、（５）は合成樹脂からなるモールド成形体であ
る。That is, FIG. 7 is a longitudinal sectional view showing the coil structure of the conventional resin mold type transformer disclosed in the above publication. In the figure, (1) is the low voltage coil, ■ is the high voltage coil, and (3) is the main coil. The insulating layer (5) is an interlayer insulating paper inserted between the layers of the high-voltage coil (2), and (5) is a molded body made of synthetic resin.
つまりこの種樹脂モールド形変成器は、主絶縁層Ｂ）を
介して高圧コイル（２）と低圧コイル（１）とを同心状
に巻回し、合成樹脂を含浸もしくは注型したモールド成
形体（５１に、第８図に示すように鉄心（６）を装着し
て構成されている。In other words, this type of resin molded transformer consists of a molded body (51 The iron core (6) is attached to the iron core (6) as shown in FIG.
そして上記高圧コイル■には、エナメル等で絶縁したコ
イル用導線を使用し、その巻数は数千ターンから致方タ
ーンと多く、高電圧をコイルの巻数で分担するためコイ
ル各層間に層間絶縁紙（２）を挿入して絶縁する構造が
一般的である。またこの高圧コイル（２）は矩形状に構
成されることが多く、その巻回テンションは、角部が強
く、直線部分が弱くなるように構成される。The high-voltage coil (■) uses coil conductor wire insulated with enamel, etc., and the number of turns is as large as several thousand turns.In order to share the high voltage with the number of turns of the coil, interlayer insulating paper is used between each layer of the coil. A structure in which (2) is inserted for insulation is common. Further, this high voltage coil (2) is often configured in a rectangular shape, and the winding tension is configured such that the winding tension is strong at the corner portions and weak at the straight portions.
上記のような従来の樹脂モールド形変成器では、高圧コ
イル（２）の巻回テンションが特に直線部分で弱く、し
かもこの直線部分での層間絶縁紙は）の挿入位置におい
て線ずれや線落ち現象が発生することが多い。即ち第９
図から第１２図は、従来の樹脂モールド形変成器におけ
る層間絶縁紙（４）の挿入位置■の構成を示しており、
第９図において、高圧コイル■の立上り線（２ａ）が側
方へ線ずれを起した状態が示されている。つまり、この
線ずれは、第１２図に示すように上記立上り線（２ａ）
が層間絶縁紙（４）の間に位置しており、これが高圧コ
イル（２）を巻回することによって両層間絶縁紙（４）
を介して押圧されることによって発生するものであって
、時には層間絶縁紙（４）の側縁からはみ出し、いわゆ
る線落ちを起すこともある。そしてこのような現象は高
圧コイル（２）の立上り部分だけでなく、他の直線部分
でも発生することがある。In the conventional resin-molded transformer as described above, the winding tension of the high-voltage coil (2) is particularly weak in the straight part, and the interlayer insulating paper in this straight part is prone to line deviation and line dropout phenomena at the insertion position. often occurs. That is, the ninth
Figures 1 to 12 show the configuration of the insertion position (■) of the interlayer insulating paper (4) in a conventional resin mold type transformer.
In FIG. 9, a state in which the rising line (2a) of the high voltage coil (2) is shifted to the side is shown. In other words, this line shift is caused by the rising line (2a) as shown in FIG.
is located between the interlayer insulating paper (4), and by winding the high voltage coil (2), both interlayer insulating papers (4)
This is caused by being pressed through the interlayer insulating paper (4), and sometimes it protrudes from the side edge of the interlayer insulating paper (4), causing so-called line drop. Such a phenomenon may occur not only in the rising portion of the high voltage coil (2) but also in other straight portions.
上記のように、高圧コイル０の線ずれや線落ちが発生す
ると、層間絶縁紙（２）を挿入した効果が失われると同
時に、高圧コイル（２）の層間絶縁破壊につながり、樹
脂モールド形変成器としての機能が消滅するのみならず
、電力の供給障害を惹起する。As mentioned above, if line deviation or line drop occurs in the high voltage coil 0, the effect of inserting the interlayer insulating paper (2) will be lost, and at the same time, it will lead to interlayer dielectric breakdown of the high voltage coil (2), resulting in deformation of the resin mold shape. Not only does it lose its function as a container, but it also causes power supply problems.
この発明は、かかる問題点を解決するためになされたも
ので、簡単な手段で高い信頼性を維持できる樹脂モール
ド形コイルを得ることを目的とする。The present invention was made to solve these problems, and aims to provide a resin-molded coil that can maintain high reliability using simple means.
この発明に係る樹脂モールド形コイルは、層間絶縁紙を
その端縁から所定の長さにわたりコイルの巻幅に相当す
る幅で切り取り、その両側部を上記コイルの線ずれを防
止する係止突片としたものである。In the resin molded coil according to the present invention, a predetermined length of interlayer insulating paper is cut from the edge thereof with a width corresponding to the winding width of the coil, and both sides of the interlayer insulating paper are provided with locking protrusions that prevent line deviation of the coil. That is.
この発明においては、層間絶縁紙の端縁両側部に設けた
係止突片の存在によってコイルの巻幅が規制されるので
、線ずれが防止され、しかもコイルの立上り線が側方へ
押し出されることもない。In this invention, the winding width of the coil is regulated by the presence of the locking protrusions provided on both sides of the edge of the interlayer insulating paper, so line deviation is prevented and the rising line of the coil is pushed out to the side. Not at all.
第１図ないし第６図はこの発明の一実施例を示すもので
あり、これらの図において、（１）〜（７）は従来の変
形器の場合と同一または相当の部分を示し説明を省略す
る。第１図に示す実施例では、層間絶縁紙（４）の挿入
位置を矩形状コイルの直線部分４箇所にした場合を示し
ている。Figures 1 to 6 show an embodiment of the present invention, and in these figures, (1) to (7) indicate the same or equivalent parts as in the case of a conventional deformer, and their explanation will be omitted. do. In the embodiment shown in FIG. 1, the interlayer insulating paper (4) is inserted into four straight portions of the rectangular coil.
ところで、この発明に係る層間絶縁紙（２）は、その端
縁両側部に高圧コイル（２）の線ずれを防止するための
係止突片（８）を設けている。つまり、この係止突片（
８１は、上記層間絶縁紙は）をその端縁から所定の長さ
にわたり高圧コイル（２）の巻幅ｌに相当する幅で切り
取り、略コ字状の切り取り部（９）を形成することによ
ってその端縁両側部に残されたものである。By the way, the interlayer insulating paper (2) according to the present invention is provided with locking protrusions (8) on both sides of its edge to prevent the line shift of the high voltage coil (2). In other words, this locking protrusion (
81 is obtained by cutting the above-mentioned interlayer insulating paper over a predetermined length from its edge with a width corresponding to the winding width l of the high-voltage coil (2) to form a substantially U-shaped cutout (9). This is left on both sides of the edge.
上記係止突片８を設けたことによって、高圧コイル■の
巻幅ｌが確実に規制されるので、高圧コイル（２）の直
線部分での線ずれが防止され、更に立上り線（２ａ）に
対する側方への押圧力が作用しなくなるので、この部分
での線ずれ・線落ちの発生も防止される。なお層間絶縁
紙（イ）の挿入位置■を、第１図に示すように高圧コイ
ル■の直線部分４箇所に設定することによって、層間絶
縁紙（イ）の重なり部分だけ厚さが増し、これによって
高圧コイル＋２１の巻回テンションが強くなり、線ずれ
防止効果が助長される。By providing the above-mentioned locking protrusion 8, the winding width l of the high voltage coil (2) is reliably regulated, thereby preventing line deviation in the straight part of the high voltage coil (2), and furthermore, Since no lateral pressing force is applied, the occurrence of line deviations and line drops in this area is also prevented. By setting the insertion positions ■ of the interlayer insulating paper (A) at the four straight parts of the high voltage coil ■ as shown in Figure 1, the thickness increases only in the overlapped part of the interlayer insulating paper (A). As a result, the winding tension of the high voltage coil +21 becomes stronger, and the effect of preventing line deviation is promoted.
第６図は層間絶縁紙（２）の挿入要領を示しており、同
図（ａ＞の状態を１回転させることによって同図（ｂ）
に示す状態となり層間絶縁紙（イ）が高圧コイル（２）
の層間に挿入されることになる。Figure 6 shows how to insert the interlayer insulating paper (2).
In the state shown in Figure 2, the interlayer insulating paper (A) is connected to the high voltage coil (2).
It will be inserted between the layers.
なお上記実施例では、係止突片（８）を層間絶縁紙（２
）の一端に設けた場合を示しているが、両端に設けても
よい、またこの発明をリアクトルや変圧器に実施しても
よく、上記実施例と同様の効果を奏する。In the above embodiment, the locking protrusion (8) is attached to the interlayer insulating paper (2).
), but it may be provided at both ends, or the present invention may be applied to a reactor or a transformer, with the same effects as in the above embodiments.
この発明は以上説明したとおり、コイルの層間絶縁紙の
端部を上記コイルの巻幅に相当する幅で切り取り、その
両側部を係止突片にするという簡単な手段により、コイ
ルの巻幅を確実に規制して線ずれ・線落ちを防止し信頼
性の高い樹脂モール第１図はこの発明の一実施例による
樹脂モールド形変成器の縦断面図、第２図は層間絶縁紙
の挿入位置における高圧コイルの構造を示す部分斜視図
、第３図は第２図におけるＩ［−Ｉ祖国、第４図は同Ｉ
Ｖ−ＩＶ祖国、第５図は同■−■断面図、第６図は層間
絶縁紙の挿入要領を示す斜視図、第７図及び第８図は従
来の樹脂モールド形変成器の縦断面図、第９図は従来の
層間絶縁紙の挿入位置における高圧コイルの構造を示す
部分斜視図、第１Ｏ図は第９図におけるＸ−Ｘ祖国、第
１１図は同Ｘｌ−ＸＩ視祖国第１２図は同Ｘ１ｌ−Ｘ１
１断面図である。As explained above, this invention allows the winding width of the coil to be adjusted by simply cutting off the end of the interlayer insulating paper of the coil to a width corresponding to the winding width of the coil, and forming locking protrusions on both sides. Highly reliable resin molding that reliably regulates and prevents line deviations and line drops FIG. 1 is a vertical cross-sectional view of a resin mold type transformer according to an embodiment of the present invention, and FIG. 2 shows the insertion position of interlayer insulating paper. 3 is a partial perspective view showing the structure of a high-voltage coil in FIG.
V-IV Homeland, Figure 5 is a cross-sectional view taken along the same lines, Figure 6 is a perspective view showing how to insert interlayer insulating paper, and Figures 7 and 8 are longitudinal cross-sectional views of a conventional resin molded transformer. , FIG. 9 is a partial perspective view showing the structure of the high voltage coil at the insertion position of the conventional interlayer insulating paper, FIG. 1O is the X-X homeland in FIG. 9, and FIG. is the same X1l-X1
FIG. 1 is a sectional view.
図において、（１）は低圧コイル、（２）はコイルとし
ての高圧コイル、（３）は主絶縁層、（２）は層間絶縁
紙、（５１はモールド成形体、（６）は鉄心、（７）は
層間絶縁紙の挿入位置、因は係止突片である。In the figure, (1) is a low voltage coil, (2) is a high voltage coil as a coil, (3) is the main insulation layer, (2) is interlayer insulation paper, (51 is a molded product, (6) is an iron core, ( 7) is the insertion position of the interlayer insulating paper, and the cause is the locking protrusion.
なお、各図中同一符号は同一または相当部分を示す。Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
し、更に合成樹脂を含浸もしくは注型してなる樹脂モー
ルド形コイルにおいて、 上記層間絶縁紙をその端縁から所定の長さにわたり上記
コイルの巻幅に相当する幅で切り取り、その両側部を上
記コイルの線ずれを防止する係止突片としたことを特徴
とする樹脂モールド形コイル。[Claims] A resin-molded coil made by winding a conductive wire in multiple layers with a predetermined width through an interlayer insulating paper and further impregnating or casting a synthetic resin, wherein the interlayer insulating paper is applied from the edge of the coil. A resin-molded coil characterized in that it is cut out over a predetermined length with a width corresponding to the winding width of the coil, and has locking protrusions on both sides thereof to prevent line deviation of the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30535889A JPH03165016A (en) | 1989-11-22 | 1989-11-22 | Resin-molded coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30535889A JPH03165016A (en) | 1989-11-22 | 1989-11-22 | Resin-molded coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03165016A true JPH03165016A (en) | 1991-07-17 |
Family
ID=17944155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30535889A Pending JPH03165016A (en) | 1989-11-22 | 1989-11-22 | Resin-molded coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03165016A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62137814A (en) * | 1985-12-11 | 1987-06-20 | Mitsubishi Electric Corp | Resin mold type transformer |
-
1989
- 1989-11-22 JP JP30535889A patent/JPH03165016A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62137814A (en) * | 1985-12-11 | 1987-06-20 | Mitsubishi Electric Corp | Resin mold type transformer |
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