JPS6111061B2 - - Google Patents
Info
- Publication number
- JPS6111061B2 JPS6111061B2 JP52000790A JP79077A JPS6111061B2 JP S6111061 B2 JPS6111061 B2 JP S6111061B2 JP 52000790 A JP52000790 A JP 52000790A JP 79077 A JP79077 A JP 79077A JP S6111061 B2 JPS6111061 B2 JP S6111061B2
- Authority
- JP
- Japan
- Prior art keywords
- mica tape
- laminated mica
- insulating layer
- resin
- 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.)
- Expired
Links
- 239000010445 mica Substances 0.000 claims description 24
- 229910052618 mica group Inorganic materials 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 241001251094 Formica Species 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Description
【発明の詳細な説明】 本発明は電気絶縁線輪の製造方法に関する。[Detailed description of the invention] The present invention relates to a method for manufacturing electrically insulated coils.
高電圧回転電機の電気絶縁線輪は通常成形され
た線輪表面にマイカテープを多重に巻回して絶縁
し、これを鉄心のスロツトに納めて組立てた後真
空加圧含浸法等によつて樹脂含浸を行なう。マイ
カテープは焼成集成マイカテープまたは無焼成集
成マイカテープのいずれかが使用されているが一
般に焼成集成マイカは無焼成集成マイカに比べて
密度が小さいために樹脂の保持性はよいが含浸時
樹脂が浸透しにくい難点がある（第１図参照）。
そのため高電圧絶縁線輪のようにマイカテープを
多重に巻回して絶縁する場合、無焼成集成マイカ
テープを用いて絶縁する方が樹脂の含浸に時間が
かからないし厚い絶縁層の最内層まで含浸できる
ので有利である。しかし絶縁表面は樹脂の保持性
が悪いので光沢がなくかつ表面に凹凸ができ易
い、従つて水分や汚損物質が付着し易く、絶縁特
性が悪くなり高電圧絶縁として十分な性能が得ら
れない欠点がある。 Electrical insulating wire rings for high-voltage rotating electric machines are usually insulated by winding mica tape multiple times around the surface of the molded wire wire, which is then placed into the slot of the iron core and assembled, and then insulated with resin by vacuum pressure impregnation method, etc. Perform impregnation. Either fired laminated mica tape or unfired laminated mica tape is used for mica tape, but in general, fired laminated mica has a lower density than unfired laminated mica, so it has better resin retention, but the resin retains more easily during impregnation. The problem is that it is difficult to penetrate (see Figure 1).
Therefore, when insulating by winding mica tape multiple times, such as in high-voltage insulating coils, it takes less time to impregnate the resin and allows it to be impregnated to the innermost layer of a thick insulating layer. Therefore, it is advantageous. However, the insulating surface has poor resin retention properties, so it lacks luster and is prone to uneven surfaces.Therefore, moisture and contaminants tend to adhere to the insulating surface, resulting in poor insulation properties and insufficient performance as high-voltage insulation. There is.
本発明は上記の欠点を除去し樹脂の浸透性がよ
く、しかも表面の樹脂の保持性がよく耐電圧特性
のよい電気絶縁輪線を提供するものである。 The present invention eliminates the above-mentioned drawbacks and provides an electrically insulating ring wire with good resin permeability, good retention of resin on the surface, and good withstand voltage characteristics.
以下本発明の電気絶縁輪の製造方法の一実施例
について説明する。 An embodiment of the method for manufacturing an electrically insulating ring according to the present invention will be described below.
本発明は第２図に示すごとく、成形された線輪
１の上に無焼成集成マイカテープを多重に重ね巻
きして形成した主絶縁層２を設け、この主絶縁層
２の上に焼成集成マイカテープを巻回して形成し
た薄い外被３を設け、全体に無溶剤樹脂を真空加
圧含浸するものである。外被３は焼成集成マイカ
テープを１回ないし２回程度巻回すればよい。焼
成集成マイカテープおよび無焼成集成マイカテー
プは夫々ガラス織布を裏打ちした通常のマイカテ
ープを使用することができる。含浸はエポキシ樹
脂等の無溶剤熱硬化性樹脂を用い、テープ巻きさ
れた線輪を鉄心に納めたのちにおこなう。 As shown in FIG. 2, the present invention provides a main insulating layer 2 formed by winding unfired laminated mica tape in multiple layers on a molded coil 1, and on this main insulating layer 2, a fired laminated mica tape is formed. A thin jacket 3 formed by winding mica tape is provided, and the entire body is impregnated with a solvent-free resin under vacuum pressure. The outer sheath 3 may be formed by wrapping a fired laminated mica tape around once or twice. As the fired laminated mica tape and the unfired laminated mica tape, ordinary mica tape lined with glass woven fabric can be used. Impregnation is performed using a solvent-free thermosetting resin such as epoxy resin after the tape-wrapped wire is placed in the iron core.
このようにして構成された電気絶縁線輪におい
ては外被として含浸に影響しない程度に焼成集成
マイカテープを薄く巻回し、その内側に浸透性の
よい無焼成集成マイカテープを巻回した主絶縁層
を形成したので、樹脂の浸透に支障なく最内層ま
で完全に含浸することができる。また外被として
巻回された焼成集成マイカテープのシール効果に
より無焼成集成マイカ層の樹脂含有率が向上し緻
密な主絶縁層を形成するための絶縁性能が向上す
る。また、絶縁表面が滑らかに仕上るので水分や
汚損物質の付着を防止でき耐電圧特性が向上す
る。 In the electrical insulating coil constructed in this way, the main insulating layer is a fired laminated mica tape that is wound thinly as an outer covering to the extent that it does not affect impregnation, and an unfired laminated mica tape with good permeability is wound inside the main insulating layer. As a result, the innermost layer can be completely impregnated without any problem in resin penetration. In addition, the sealing effect of the fired laminated mica tape wound as an outer covering improves the resin content of the unfired laminated mica layer, improving the insulation performance for forming a dense main insulating layer. Furthermore, since the insulating surface is finished smoothly, moisture and contaminants can be prevented from adhering, and the withstand voltage characteristics are improved.
本発明による電気絶縁線輪と、従来の無焼成集
成マイカテープのみを用いて絶縁した電気絶縁線
輪の各試料について、その耐電圧特性の比較試験
を実施した結果、後者の絶縁破壊電圧値が20〜25
KV/mmであるのに対し前者の絶縁破壊電圧値が25
〜30KV/mmに達することを確認した。 As a result of conducting a comparative test of the withstand voltage characteristics of each sample of the electrically insulating wire according to the present invention and the electrically insulating wire insulated using only conventional unfired laminated mica tape, the dielectric breakdown voltage value of the latter was found to be 20-25
The dielectric breakdown voltage value of the former is 25 KV/mm.
It was confirmed that it reached ~30KV/mm.
以上のように本発明よれば、無焼成集成マイカ
テープを用いた主絶縁層の上に焼成集成マイカテ
ープを用いた薄い外被を設けたという簡単な構成
で絶縁性能が顕著に向上する効果がある。 As described above, according to the present invention, insulation performance can be significantly improved with a simple structure in which a thin outer cover made of fired laminated mica tape is provided on the main insulation layer made of unfired laminated mica tape. be.
第１図は焼成集成マイカと無焼成集成マイカの
樹脂浸透性の特性図、第２図は本発明の方法によ
つて製造された電気絶縁輪の一例を示す断面図で
ある。
１……線輪、２……主絶縁層、３……外被。
FIG. 1 is a characteristic diagram of resin permeability of fired laminated mica and unfired laminated mica, and FIG. 2 is a sectional view showing an example of an electrically insulating ring manufactured by the method of the present invention. 1... wire ring, 2... main insulating layer, 3... outer covering.
Claims (1)
して主絶縁層を形成し、この主絶縁層の上に焼成
集成マイカテープを巻回して薄い外被を形成し、
この外被と前記主絶縁層に無溶剤樹脂を真空加圧
含浸することを特徴とする電気絶縁線輪の製造方
法。1. Wrap an unfired laminated mica tape around the surface of the wire to form a main insulating layer, wrap a fired laminated mica tape on top of this main insulating layer to form a thin outer covering,
A method for manufacturing an electrically insulating coil, comprising impregnating the outer cover and the main insulating layer with a solvent-free resin under vacuum pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP79077A JPS5386401A (en) | 1977-01-10 | 1977-01-10 | Electrical insulation coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP79077A JPS5386401A (en) | 1977-01-10 | 1977-01-10 | Electrical insulation coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5386401A JPS5386401A (en) | 1978-07-29 |
| JPS6111061B2 true JPS6111061B2 (en) | 1986-04-01 |
Family
ID=11483474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP79077A Granted JPS5386401A (en) | 1977-01-10 | 1977-01-10 | Electrical insulation coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5386401A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732611A (en) * | 1980-08-04 | 1982-02-22 | Shinko Electric Co Ltd | Insulating process of coil in enclosed machine for high temperature use |
| JPS5829340A (en) * | 1981-08-17 | 1983-02-21 | Meidensha Electric Mfg Co Ltd | Coil for rotary machine |
| JPS5836146A (en) * | 1981-08-28 | 1983-03-03 | Meidensha Electric Mfg Co Ltd | High voltage rotary electric machine coil |
| JPS62117211A (en) * | 1985-11-15 | 1987-05-28 | 富士電機株式会社 | High voltage insulated conductor |
| JPH0685283B2 (en) * | 1986-07-10 | 1994-10-26 | 富士電機株式会社 | High voltage insulated conductor consisting of shaped conductor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50153300A (en) * | 1974-05-31 | 1975-12-10 |
-
1977
- 1977-01-10 JP JP79077A patent/JPS5386401A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50153300A (en) * | 1974-05-31 | 1975-12-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5386401A (en) | 1978-07-29 |
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