JPH0124917Y2 - - Google Patents
Info
- Publication number
- JPH0124917Y2 JPH0124917Y2 JP9050483U JP9050483U JPH0124917Y2 JP H0124917 Y2 JPH0124917 Y2 JP H0124917Y2 JP 9050483 U JP9050483 U JP 9050483U JP 9050483 U JP9050483 U JP 9050483U JP H0124917 Y2 JPH0124917 Y2 JP H0124917Y2
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- insulating coating
- protrusion
- reactor
- fibers
- 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
- 239000011247 coating layer Substances 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 14
- 238000010125 resin casting Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims 1
- 230000008033 biological extinction Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は絶縁性樹脂注形リアクトルに関するも
のである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an insulating resin casting reactor.
従来の直流送電用サイリスタバルブに使用され
る絶縁性樹脂注形リアクトルの一例を第１図に示
す。サイリスタバルブに使われるリアクトル１
は、電流が数kAであり、耐電圧的には十数kVを
必要とし、インダクタンス値が数百μHを必要と
される。これらの要求をみたすため、従来よりコ
イル２は銅管銅管２ａを数十回巻き、発生する熱
を冷却するために液体を銅管２ａの中に通し、ま
た耐電圧の面からはエポキシ樹脂で注形し、絶縁
被覆層３を形成していた。
An example of an insulating resin casting reactor used in a conventional thyristor valve for direct current power transmission is shown in FIG. Reactor 1 used in thyristor valves
requires a current of several kA, a withstand voltage of more than ten kV, and an inductance value of several hundred μH. In order to meet these requirements, the coil 2 has traditionally been made of a copper tube 2a wound several tens of times, and a liquid is passed through the copper tube 2a to cool the generated heat. The insulating coating layer 3 was formed by casting.
またこの種のリアクトルには、事故時に数十
kAの電流がコイル２に流れるため、第２図に示
すように絶縁被覆層３の内部にフアイバー４をコ
イル２のターン間に挿入して過電流衝撃に耐えう
る構造となつており、底部には支持板５に取付け
るための金具６が埋込まれている。 In addition, this type of reactor has dozens of
Since a current of kA flows through the coil 2, a fiber 4 is inserted between the turns of the coil 2 inside the insulating coating layer 3, as shown in Figure 2, to create a structure that can withstand overcurrent shock. A metal fitting 6 for attaching to the support plate 5 is embedded.
しかし、絶縁被覆層３の内部にフアイバー４を
入れた場合、真空脱気して注形しても完全なボイ
ドレスにすることが非常に困難であつた。 However, when the fiber 4 is placed inside the insulating coating layer 3, it is very difficult to make it completely void-free even after vacuum evacuation and casting.
さらに、サイリスタバルブに印加される電圧波
形を第３図に示すが、このように多くの高周波分
を含むため、絶縁被覆層３内部にボイド７があれ
ば、パツシエンの法則によりコロナ放電が発生
し、高周波により放電回数は加速される。 Furthermore, the voltage waveform applied to the thyristor valve is shown in Figure 3, and since it contains many high frequency components, if there is a void 7 inside the insulating coating layer 3, corona discharge will occur according to Patsien's law. , the number of discharges is accelerated by high frequency.
コロナ放電が発生すると、隣接する電子機器へ
ノイズを与えるとともに、長期にわたつてコロナ
放電が発生すると、コロナ放電発生箇所で絶縁被
覆層３の絶縁劣化が起こる。この絶縁劣化が進む
と耐電圧値以下又は使用電圧値においても絶縁破
壊を起す。絶縁被壊した場合、本来のリアクトル
の性能はなくなり、回路機能を破壊し、大事故に
到る恐れがある。 When corona discharge occurs, it gives noise to adjacent electronic equipment, and when corona discharge occurs for a long period of time, insulation deterioration of the insulating coating layer 3 occurs at the location where corona discharge occurs. As this insulation deterioration progresses, dielectric breakdown occurs even at lower withstand voltage values or at working voltage values. If the insulation is damaged, the reactor's original performance will be lost, the circuit function will be destroyed, and there is a risk of a major accident.
このため従来は、内部のボイド７にかかる電圧
を低くするためフアイバー４を挿入した絶縁被覆
層３の厚さl1を大きくする方法が採用されてい
た。しかし、この方法では、絶縁被覆層を厚くす
ることで更にボイド７がふえるため、多くのエポ
キシ樹脂材を必要とし、製造費用も高く、重量、
体積も大きくなる欠点があり、この改善が望まれ
ていた。 For this reason, conventionally, in order to lower the voltage applied to the internal voids 7, a method has been adopted in which the thickness l1 of the insulating coating layer 3 into which the fibers 4 are inserted is increased. However, with this method, the number of voids 7 increases as the insulation coating layer becomes thicker, so a large amount of epoxy resin material is required, the manufacturing cost is high, and the weight and weight are increased.
There is also a drawback that the volume is large, and improvement of this problem has been desired.
なお第１図中符号９は端子を示す。 Note that the reference numeral 9 in FIG. 1 indicates a terminal.
本考案の目的は、絶縁被覆層を厚くすることな
くコロナ放電も抑制できる高信頼性の絶縁性樹脂
注形のリアクトルを提供することにある。
An object of the present invention is to provide a highly reliable insulating resin cast reactor that can suppress corona discharge without increasing the thickness of the insulating coating layer.
本考案は、フアイバーをコイルのターン間に挿
入し絶縁性樹脂を注形固化した絶縁被覆層を有す
るリアクトルに、フアイバーの混入しない突起部
を形成した点に特徴を有するものである。
The present invention is characterized in that a protrusion that does not contain fibers is formed on a reactor that has an insulating coating layer in which fibers are inserted between turns of a coil and an insulating resin is cast and solidified.
以下本考案の一実施例を図面について説明す
る。
An embodiment of the present invention will be described below with reference to the drawings.
第１図及び第２図と同一部分に同符号を付して
説明を省略した第４図に於て、絶縁被覆層３の下
部にフアイバー４の混入しない突起部１２を設け
る。 In FIG. 4, in which the same parts as in FIGS. 1 and 2 are given the same reference numerals and their explanations are omitted, a protrusion 12 in which no fibers 4 are mixed is provided at the lower part of the insulating coating layer 3.
ここで突起部１２にフアイバー４を混入させな
いために、第５図に示すように凹部１３ａが形成
された底面の型１３に、絶縁布（又は紙）１４を
のせ、その上にフアイバー４で包まれたコイル２
をのせ、真空脱気した後、エポキシ樹脂を流し込
む。 In order to prevent the fibers 4 from getting mixed into the protrusion 12, as shown in FIG. coil 2
After vacuum degassing, pour in the epoxy resin.
このようにフアイバー４の混入しない突起部１
２を設けることにより、ボイドレスの絶縁被覆層
を付加したこととなり、フアイバー４の混入した
絶縁被覆層内のボイドにかかる電圧は低減され
る。本考案者らの実験結果によれば、フアイバー
の混入した絶縁被覆層の厚さl1が３mmの場合の突
起部１２の長さｌとコロナ放電消滅電圧の関係は
第６図に示すようになつた。突起部１２の長さが
０の場合（従来例と同じ）ではコロナ消滅電圧は
1kVと低いが突起部１２の長さが大きくなるにつ
れてコロナ消滅電圧は上昇する。AC8kVでコロ
ナフリーの絶縁性樹脂注形リアクトルを得たい場
合には、フアイバー４の混入しない突起部１２
は、６mm以上あればよい。 In this way, the protrusion 1 that does not contain the fiber 4
2, a void-free insulating coating layer is added, and the voltage applied to the voids in the insulating coating layer in which the fibers 4 are mixed is reduced. According to the experimental results of the present inventors, the relationship between the length l of the protrusion 12 and the corona discharge extinction voltage when the thickness l 1 of the insulating coating layer containing fibers is 3 mm is as shown in Figure 6. Summer. When the length of the protrusion 12 is 0 (same as the conventional example), the corona extinction voltage is
Although it is as low as 1 kV, the corona extinction voltage increases as the length of the protrusion 12 increases. If you want to obtain a corona-free insulating resin casting reactor at AC8kV, the protrusion 12 that does not contain the fiber 4
should be at least 6 mm.
以上のように本考案は構成されているから、ボ
イドのコロナ抑制し、長期にわたり高信頼性を有
する絶縁性樹脂注形リアクトルを提供することが
できる。
Since the present invention is configured as described above, it is possible to provide an insulating resin casting reactor that suppresses the corona of voids and has high reliability over a long period of time.
第１図は従来の絶縁性樹脂注形のリアクトルを
示す斜視図、第２図は第１図のＡ−Ａ線に沿つて
矢印方向に示す断面図、第３図は直流送電用のサ
イリスタバルブ用に使用したときリアクトルにか
かる代表的な電圧波形を示す説明図、第４図は本
考案の一実施例を示す斜視図、第５図は本考案の
一実施例の製造方法を示す説明図、第６図は本考
案の一実施例に関連する突起部の長さとコロナ消
滅電圧との関係を示す線図である。
２……コイル、３……絶縁被覆層、４……フア
イバ、１２……突起部。
Figure 1 is a perspective view showing a conventional insulating resin cast reactor, Figure 2 is a sectional view taken along line A-A in Figure 1 in the direction of the arrow, and Figure 3 is a thyristor valve for DC power transmission. Fig. 4 is a perspective view showing an embodiment of the present invention, and Fig. 5 is an explanatory diagram showing a manufacturing method of an embodiment of the present invention. , FIG. 6 is a diagram showing the relationship between the length of the protrusion and the corona extinction voltage related to one embodiment of the present invention. 2...Coil, 3...Insulating coating layer, 4...Fiber, 12...Protrusion.
Claims (1)
た絶縁被覆層を形成させたものにおいて、この絶
縁被覆層の接地面と接触する外側部に前記フアイ
バーの混入しない突起部を形成したことを特徴と
する絶縁性樹脂注形リアクトル。 A coil in which a conductor is wound is formed with an insulating coating layer containing fibers, characterized in that a protrusion that does not contain the fibers is formed on the outer side of the insulating coating layer that contacts the ground plane. Insulating resin casting reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9050483U JPS59195726U (en) | 1983-06-15 | 1983-06-15 | Insulating resin casting reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9050483U JPS59195726U (en) | 1983-06-15 | 1983-06-15 | Insulating resin casting reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59195726U JPS59195726U (en) | 1984-12-26 |
| JPH0124917Y2 true JPH0124917Y2 (en) | 1989-07-27 |
Family
ID=30220431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9050483U Granted JPS59195726U (en) | 1983-06-15 | 1983-06-15 | Insulating resin casting reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59195726U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4968626B2 (en) * | 2008-03-07 | 2012-07-04 | 住友電気工業株式会社 | Coil molded body and reactor |
| JP5092848B2 (en) * | 2008-04-03 | 2012-12-05 | 住友電気工業株式会社 | Reactor and reactor coils |
| JP4973890B2 (en) * | 2009-01-16 | 2012-07-11 | 住友電気工業株式会社 | Reactor and coil molding |
| JP2014146657A (en) * | 2013-01-28 | 2014-08-14 | Toyota Industries Corp | Guidance system |
-
1983
- 1983-06-15 JP JP9050483U patent/JPS59195726U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59195726U (en) | 1984-12-26 |
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