JPH03277147A - Armature coil winding - Google Patents
Armature coil windingInfo
- Publication number
- JPH03277147A JPH03277147A JP7345290A JP7345290A JPH03277147A JP H03277147 A JPH03277147 A JP H03277147A JP 7345290 A JP7345290 A JP 7345290A JP 7345290 A JP7345290 A JP 7345290A JP H03277147 A JPH03277147 A JP H03277147A
- Authority
- JP
- Japan
- Prior art keywords
- strand
- corner
- coil
- wire
- corner radius
- 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
- 238000004804 winding Methods 0.000 title claims abstract description 25
- 238000009413 insulation Methods 0.000 abstract description 9
- 230000005684 electric field Effects 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000017105 transposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Windings For Motors And Generators (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は電機子巻線の絶縁性能向上に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to improving the insulation performance of armature windings.
（従来の技術）
一般に、電機子巻線は巻線を構成する素線コイルの外周
部に絶縁か施されている。巻線の絶縁性能を代表する絶
縁耐力は素線コイルのコーナー半径が大きいほどコーナ
ー部の電界緩和が出来て性能向上を計ることが出来る。(Prior Art) Generally, an armature winding is insulated on the outer periphery of a wire coil that constitutes the winding. Regarding the dielectric strength, which represents the insulation performance of the winding, the larger the corner radius of the wire coil, the more the electric field at the corner can be relaxed, and the performance can be improved.
素線コイルのコーナー半径は、素線コイルを構成する素
線のコーナ半径に制限され任意に大きく出来なかった。The corner radius of the wire coil is limited by the corner radius of the wires constituting the wire coil, and cannot be increased arbitrarily.
最大でも素線厚さの半分まである。その為素線コイルの
コーナー半径を大きくしようとしても、最大でも素線厚
さの半分までであり、又素線のコーナ半径を大きくする
ことにより、素線の有効面積か減少し、素線の占積率か
低下する。At most, it is half the thickness of the strand. Therefore, even if you try to increase the corner radius of the strand coil, the maximum is half the thickness of the strand, and by increasing the corner radius of the strand, the effective area of the strand decreases, The occupancy rate will decrease.
第３図は従来の電機子巻線の断面図であり、般的なレー
ヘル転位を有する電機子巻線である。FIG. 3 is a sectional view of a conventional armature winding, which is an armature winding having a general Leher dislocation.
第４図は第３図の上部の拡大図であり、第５図は素線コ
イルのコーナー半径を大きくする目的で素線のコーナー
半径を最大まで大きくした時の図であり、第４図と比較
するために示した。Figure 4 is an enlarged view of the upper part of Figure 3, and Figure 5 is a diagram when the corner radius of the wire is maximized for the purpose of increasing the corner radius of the wire coil. Shown for comparison.
第４図、第５図は共に、素線コイルを構成する素線は全
て同一形状で、素線のコーナー半径と素線コイルのコー
ナー半径は同一である。In both FIGS. 4 and 5, the wires constituting the wire coil have the same shape, and the corner radius of the wire and the corner radius of the wire coil are the same.
（発明か解決しようとする課題）
大型の発電機の様に、大電流、高電圧の巻線が要求され
る電気機械では、大電流の為、素線数を多くし、かつ素
線の占積率向上の為、素線のコ−ナー半径をより小さく
したい要求がある。(Problem to be solved by the invention) In electric machines such as large generators that require large current and high voltage windings, the number of strands is increased and the proportion of strands is increased due to the large current. There is a demand for a smaller corner radius of the wire in order to improve the bulk factor.
反面、高電圧の為、絶縁性能向上という要求から、素線
コイルのコーナー半径は電界緩和の面からより大きくし
たいという要求がある。On the other hand, due to the high voltage, there is a demand for improved insulation performance, and there is a demand for the corner radius of the bare wire coil to be larger in terms of electric field relaxation.
電機子巻線の絶縁性能向上の為、第５図の様に素線のコ
ーナー半径を最大の素線厚さの半分まで大きくすると、
素線の占積率が低下してしまう。In order to improve the insulation performance of the armature winding, increasing the corner radius of the wire to half the maximum wire thickness as shown in Figure 5,
The space factor of the strands decreases.
これを補うには素線数を増すことになり、より不経済な
機械となる。しかも素線厚さの半分までのコーナー半径
と成り、素線厚さの半分以上の任意のコーナー半径は望
めない。To compensate for this, the number of strands has to be increased, making the machine even more uneconomical. Moreover, the corner radius is up to half the thickness of the strand, and an arbitrary corner radius of more than half the thickness of the strand cannot be expected.
その為、第６図に示す様に、素線コイルの上下部と絶縁
層３との間に素線のコーナー半径より大きいコーナー半
径を有する絶縁物又は半導電性の部材層からなる充填物
２を備えた構成の電機子巻線が発明され、素線の占積率
を低下させること無く、素線コイルのコーナー半径を大
きく成形することが出来る。Therefore, as shown in FIG. 6, between the upper and lower parts of the wire coil and the insulating layer 3, there is a filling 2 made of an insulating or semiconductive material layer having a corner radius larger than the corner radius of the wire. An armature winding having a configuration has been invented, and the corner radius of the wire coil can be formed to be large without reducing the space factor of the wire.
しかしこの発明でも素線コイルに占める素線の占積率は
充填物２の分だけ低下してしまう。However, even in this invention, the space factor of the wire in the wire coil is reduced by the amount of the filler 2.
本発明は上記の欠点に鑑みなされたものであり、素線コ
イルのコーナー部に位置する素線のコーナー半径のみを
大きくし、他の素線のコーナー半径は従来のままとし、
占積率を確保して、絶縁層の電界緩和がはかれる電機子
巻線を提供することを目的とする。The present invention was made in view of the above-mentioned drawbacks, and only the corner radius of the strands located at the corners of the strand coil is increased, while the corner radii of the other strands are left as they were before.
It is an object of the present invention to provide an armature winding in which a space factor is ensured and an electric field in an insulating layer is relaxed.
［発明の構成コ
（課題を解決するための手段）
上記目的を達成するため本発明の電機子巻線は、複数の
素線を配列して構成した素線コイルの外周を絶縁部材で
覆った電機子巻線において、前記素線コイルのコーナー
部に位置する素線のコナー半径を他の素線のコーナー半
径より大きくする。[Structure of the Invention (Means for Solving the Problems) In order to achieve the above object, the armature winding of the present invention includes an insulating member covering the outer periphery of a strand coil formed by arranging a plurality of strands. In the armature winding, the corner radius of the wire located at the corner of the wire coil is made larger than the corner radius of the other wires.
（作 用）
本発明は以上の様に構成されており素線コイルのコーナ
ー部に位置する素線のコーナー半径のみを大きくしたの
で、使用するすべての素線のコーナー半径を大きくする
ことによる素線の占積率の低下、素線コイルの上下部に
余分な充填物を設けることによる素線コイルの素線占積
率の低下等を改善し使用する素線のコーナー半径より十
分大きな任意のコーナー半径を形成することが可能であ
り、絶縁層の電界緩和をはかることが出来る。(Function) The present invention is constructed as described above, and only the corner radius of the strands located at the corner portions of the strand coil is increased. To improve the reduction in the wire space factor of the wire and the reduction in the wire space factor of the wire coil due to the provision of extra fillers at the top and bottom of the wire coil, we can provide an arbitrary corner radius that is sufficiently larger than the corner radius of the wire to be used. It is possible to form a corner radius, and the electric field of the insulating layer can be relaxed.
（実施例） 本発明の一実施例について図を用いて説明する。(Example) An embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例に係る電機子巻線の断面図を
示すものであり、複数の素線１を縦セパレータ５を介し
て配列し、さらにクロス部絶縁４を介して素線コイルコ
ーナー部素線６を上下に配し、さらにこれらの上下部に
形成される凹凸部に充填物２を配し素線コイルを形成し
、素線コイル全体を絶縁層３で覆い電機子巻線が構成さ
れている。FIG. 1 shows a cross-sectional view of an armature winding according to an embodiment of the present invention, in which a plurality of strands 1 are arranged with a vertical separator 5 in between, and the strands are further arranged with a cross section insulator 4 in between. Coil corner portion strands 6 are placed one above the other, and fillers 2 are placed in the uneven parts formed at the top and bottom of these to form a strand coil, and the entire strand coil is covered with an insulating layer 3 for armature winding. lines are constructed.
充填物２は絶縁物でも良いが半導電性の充填物の方が電
界緩和効果が大である。The filler 2 may be an insulating material, but a semiconductive filler has a greater electric field relaxation effect.
この様な電機子巻線を構成するには、従来の素線コイル
をモールド成形した後、鉄心挿入範囲に位置する素線コ
イルのコーナーを連続的に任意のコーナー半径で削すり
形成することが出来る。To construct such an armature winding, after molding a conventional wire coil, the corners of the wire coil located in the core insertion range are continuously ground to a desired corner radius. I can do it.
コイルを構成する素線の一部分、すなわち素線コイルの
コーナーに位置する素線を第１図に示す様に他の素線１
のコーナー半径より大きい任意のコーナー半径に形成す
るものである。A part of the wire constituting the coil, that is, the wire located at the corner of the wire coil, is connected to other wire 1 as shown in FIG.
The corner radius can be any radius greater than the radius of the corner.
以上はレーベル転位を有する電機子巻線の実施例である
か、マルチターンコイルの様にレーベル転位を行なわな
い電機子巻線の場合は、本発明の主旨を生かし形成する
ことが出来る。すなわち第２図に示す様に、素線コイル
のコーナーに位置すル素線のコーナーの一部を、素線コ
イルのモールド成形後任意のコーナー半径で削すり、素
線のコナー半径よりも大きい任意のコーナー半径を形成
することが出来る。The above is an example of an armature winding having a Label transposition, or in the case of an armature winding without a Label transposition such as a multi-turn coil, it can be formed by taking advantage of the gist of the present invention. In other words, as shown in Fig. 2, after molding the bare wire coil, a part of the corner of the bare wire located at the corner of the bare wire coil is ground with an arbitrary corner radius that is larger than the corner radius of the bare wire. Any corner radius can be formed.
［発明の効果］
以上述べたように本発明は素線コイルの上下部に位置す
る素線コイルのコーナーを他の素線のコーナー半径より
大きくして素線コイルのコーナー半径を大きく形成する
ようにしたので、素線の占積率に優れ、絶縁性能に優れ
た電機子巻線を提供することか出来る。[Effects of the Invention] As described above, the present invention makes the corners of the wire coil located at the upper and lower portions of the wire coil larger than the corner radii of other wires, so that the corner radius of the wire coil is formed to be large. Therefore, it is possible to provide an armature winding having an excellent wire space factor and excellent insulation performance.
第１図は本発明の一実施例の電機子巻線の主要部断面図
、第２図は本発明の他の実施例のマルチターンコイルを
示す断面図、第３図ないし第６図は従来の電機子巻線の
構成を示す断面図である。
１・・・素線 ２・・・充填物３・・・絶縁
層 ４・・・クロス部絶縁５・・・縦セパレー
タ
６・・・素線コイルコーナー部素線
７・・・ターン絶縁FIG. 1 is a cross-sectional view of the main parts of an armature winding according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a multi-turn coil according to another embodiment of the present invention, and FIGS. 3 to 6 are conventional FIG. 3 is a cross-sectional view showing the configuration of an armature winding. 1... Element wire 2... Filler 3... Insulating layer 4... Cross part insulation 5... Vertical separator 6... Element wire coil corner part element wire 7... Turn insulation
Claims (1)
部材で覆った電機子巻線において、前記素線コイルのコ
ーナー部に位置する素線のコーナー半径を他の素線のコ
ーナー半径より大きくしたことを特徴とする電機子巻線
。In an armature winding in which the outer periphery of a strand coil made up of a plurality of strands arranged is covered with an insulating member, the corner radius of the strand located at the corner of the strand coil is the corner radius of the other strands. An armature winding characterized by being larger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7345290A JPH03277147A (en) | 1990-03-26 | 1990-03-26 | Armature coil winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7345290A JPH03277147A (en) | 1990-03-26 | 1990-03-26 | Armature coil winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03277147A true JPH03277147A (en) | 1991-12-09 |
Family
ID=13518641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7345290A Pending JPH03277147A (en) | 1990-03-26 | 1990-03-26 | Armature coil winding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03277147A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0981139A1 (en) * | 1998-08-20 | 2000-02-23 | ASTA Elektrodraht GmbH | Electrical conductor |
| US20140062248A1 (en) * | 2012-08-30 | 2014-03-06 | Denso Corporation | Electric rotating machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5617856B2 (en) * | 1976-07-27 | 1981-04-24 |
-
1990
- 1990-03-26 JP JP7345290A patent/JPH03277147A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5617856B2 (en) * | 1976-07-27 | 1981-04-24 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0981139A1 (en) * | 1998-08-20 | 2000-02-23 | ASTA Elektrodraht GmbH | Electrical conductor |
| US20140062248A1 (en) * | 2012-08-30 | 2014-03-06 | Denso Corporation | Electric rotating machine |
| US9531228B2 (en) * | 2012-08-30 | 2016-12-27 | Denso Corporation | Electric rotating machine |
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