JPS63314150A - Coreless armature - Google Patents
Coreless armatureInfo
- Publication number
- JPS63314150A JPS63314150A JP14843487A JP14843487A JPS63314150A JP S63314150 A JPS63314150 A JP S63314150A JP 14843487 A JP14843487 A JP 14843487A JP 14843487 A JP14843487 A JP 14843487A JP S63314150 A JPS63314150 A JP S63314150A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- coil body
- coating layer
- strands
- 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
- 239000011247 coating layer Substances 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical group [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Manufacture Of Motors, Generators (AREA)
- Dc Machiner (AREA)
Abstract
Description
【発明の詳細な説明】
［技術分野］
本発明は、複数本のコイル素線で形成された円筒状の複
数個のコイル体を、入子状に配置してコイル素線を適宜
接続することにより波巻きコイルとした無鉄芯電機子に
関するものである。[Detailed Description of the Invention] [Technical Field] The present invention relates to a method of arranging a plurality of cylindrical coil bodies formed of a plurality of coil wires in a nested manner and connecting the coil wires as appropriate. This invention relates to an iron-free core armature with wave-wound coils.
［背景技術１
従来より、第５図に示すように、絶縁被覆層を有する１
本の巻線１゛を波巻きコイルとして巻回することにより
形成された無鉄芯電機子が提供されている。この無鉄芯
′／ｌｉｍ子は、仮想的に設定した円筒の周面に１本の
巻線１゛を巻き付けるようにして形成されており、巻線
１゛を円筒の上縁から下縁に向かってたすきだけ状に巻
き付けるとともに、下縁で折り返して上縁に向かってた
すきかけ状に巻き付けることにより円筒の周面を略１周
し、さらに上縁で折り返して同じ操作を繰り返すことに
より、波巻きコイルとされているのである。[Background technology 1] Conventionally, as shown in FIG.
A coreless armature is provided which is formed by winding a book winding 1' as a wave-wound coil. This iron-free core'/limer is formed by winding one winding 1' around the peripheral surface of a hypothetically set cylinder, and the winding 1' is wound from the upper edge of the cylinder to the lower edge. By wrapping it in a sash-like shape toward the front, folding it back at the lower edge and wrapping it in a sash-like shape toward the upper edge, it goes around the circumference of the cylinder approximately once, then folds it back at the upper edge and repeats the same operation to create a wave. It is said to be a wound coil.
この無鉄芯電機子は、Ｐｔ５５図に示すように、巻線１
゛の折り返し部分である円筒の上縁部分で＠線１゛の絶
縁被覆層を除去して内部導体５を露出させ、この内部導
体５が露出した部分を整流子セグメントとしている。し
たがって、刷子との接触面積が比較的小さいとともに、
８線１゛の巻始端と巻終端とに他の部分とは異なる非連
続部分が形成されるから、刷子との接触の安定性が保ち
にくく、整流特性に問題がある。また、１ターン当たり
、もしくは、整流子セグメント間での抵抗値が変化する
から、リップル特性が悪化するという問題がある。This ironless core armature has winding 1 as shown in Pt55 diagram.
At the upper edge portion of the cylinder, which is the folded portion of ゛, the insulating coating layer of @ wire 1 ゛ is removed to expose the internal conductor 5, and the exposed portion of the internal conductor 5 is used as a commutator segment. Therefore, the contact area with the brush is relatively small, and
Since discontinuous parts different from other parts are formed at the winding start and end of the 8-wire 1' winding, it is difficult to maintain stability in contact with the brush, and there is a problem in rectifying characteristics. Furthermore, since the resistance value changes per turn or between commutator segments, there is a problem that ripple characteristics deteriorate.
［発明の目的］
本発明は上述の点に鑑みて為されたものであって、その
目的とするところは、整流子セグメントを周面に形成す
ることにより、別体として整流子を用いずに、安定した
整流特性が得られ、しかもリップルが少ない無鉄芯電機
子を提供することにある。[Object of the Invention] The present invention has been made in view of the above-mentioned points, and its object is to form commutator segments on the circumferential surface, thereby eliminating the need for using a separate commutator. The object of the present invention is to provide an iron-core armature that provides stable rectification characteristics and has less ripple.
［発明の開示１
（構成）
本発明に係る無鉄芯電機子は、絶縁被覆層を有した同じ
長さの複数本のコイル素線を互いに平イテに配列した状
態で仮想的な円筒の周面に巻き付けることにより、各コ
イル素線の両端がそれぞれ上記円筒の袖に直交する一対
の円の周上に略均等に配置されるようにした複数のコイ
ル体を有し、各コイル体を径方向において入子状に配置
するとともに内側のコイル体と外側のコイル体とのコイ
ル素線の走行方向を互いに交差するようにし、内側のコ
イル体と外側のコイル体との隣接する素線同士をコイル
素線の端部で電気的に接続することにより波巻きコイル
とした無鉄芯電機子において、コイル素線の適所の絶縁
被覆層をいずれかのコイル体の全周に亘って除去して内
部導体を露出させた部分を整流子セグメントとして成る
ものであり、周面に整流子セグメントを形成することに
より、刷子との接触面積が大きくとれるようにし、かつ
全周に亘って整流子セグメントな略滑らかにして刷子と
の接触の安定性をよくして整流特性を向上させたもので
ある。さらに、１本の巻線ではなく複数本のコイル素線
により波巻きコイルを形成することにより、各セグメン
ト間の抵抗値を略均等にしてリップルを抑制したもので
ある。[Disclosure of the Invention 1 (Structure) The ironless core armature according to the present invention is arranged around a virtual cylinder in which a plurality of coil wires having the same length and having an insulating coating layer are arranged in a flat manner with respect to each other. It has a plurality of coil bodies in which both ends of each coil wire are arranged approximately equally on the circumference of a pair of circles perpendicular to the sleeves of the cylinder by winding it around a surface, and each coil body has a diameter. The running directions of the coil wires of the inner coil body and the outer coil body are arranged in a nested manner in the direction, and the running directions of the coil wires of the inner coil body and the outer coil body are arranged to cross each other, and the adjacent wires of the inner coil body and the outer coil body are In iron-core armatures that are made into wave-wound coils by electrically connecting the ends of the coil wires, the insulation coating layer at appropriate locations on the coil wires is removed around the entire circumference of one of the coil bodies. The exposed part of the internal conductor is made up of commutator segments. By forming commutator segments on the circumference, a large contact area with the brush can be obtained, and the commutator segments are formed over the entire circumference. It is made substantially smooth to improve stability of contact with the brush and improve rectification characteristics. Furthermore, by forming the wave-wound coil with a plurality of coil wires instead of a single winding, the resistance values between the segments are made substantially equal, thereby suppressing ripples.
（実施例）
まず、第３図を用いて本発明の基本的な構成を示す。絶
縁被覆層３を有する複数本のコイル素線１を互いに平行
に配列して密着させたコイル線束２を複数本用い、第３
図（ａ）に示すように、仮想的な円筒の周面を形成する
ように、コイル線束２を円筒の軸方向に対して平行に配
列する。この状態から、円筒の上下両端部を周方向にお
いて互いに逆向きにねじることにより、第３図（ｂ）に
示すように、コイル線束２間を密接させた状態の円筒状
の内コイル体４ａを形成する。ここに、コイル線束２の
両端部では、コイル線束２間士を互いに離間させてギャ
ップＧを形成しておく。一方、第３図（ｅ）に示すよう
に、内コイル体４ａと同様にして、コイル線束２を仮想
的な円筒の周面を形成するように配列し、円筒の上下両
端部を周方向において互いに逆向きかつ内コイル体４ａ
とは反対にねじることにより、第３図（ｄ）に示すよう
に、コイル線束２間が密接した外コイル体４ｂを形成す
る。外コイル体４ｂにおいても、コイル線束２の両ｉ部
では、コイル線束２間士を互いに離間させてギャップＧ
を形成しておく。ここに、外コイル体４ｂの内径は、内
コイル体４ａの外径に略等しく設定されている。このよ
うにして形成された内コイル体４ａと外コイル体４ｂと
を、第３図（ｅ）に示すように、ギャップＧをほぼ一致
させる形で入子状に配置する。内コイル体４ａと外コイ
ル体４ｂとにおいてギャップＧを合わせる部分は、」二
端部側では第３図（ｆ）に示すように、ギヤツブＧ同士
をまったく一致させ、下端部側では第３図（ｇ）に示す
ように、ギャップＧをコイル素＃Ｘ１の１本分だけ周方
向にずらして位置させる。この状態で、内コイル体４ａ
と外コイル体４ｂとの径方向に隣接するコイル素Ｍｌ同
士をレーザ溶接等により電気的に接続して、ｔｊｔＪ２
図に示すような形状の波巻きコイルを形成するのである
。(Example) First, the basic configuration of the present invention will be shown using FIG. Using a plurality of coil wire bundles 2 in which a plurality of coil wires 1 each having an insulating coating layer 3 are arranged parallel to each other and brought into close contact with each other, a third coil wire bundle 2 is used.
As shown in Figure (a), the coil wire bundle 2 is arranged parallel to the axial direction of the cylinder so as to form the peripheral surface of a virtual cylinder. From this state, by twisting the upper and lower ends of the cylinder in opposite directions in the circumferential direction, the cylindrical inner coil body 4a is formed with the coil wire bundle 2 brought into close contact with each other, as shown in FIG. 3(b). Form. Here, at both ends of the coil wire bundle 2, a gap G is formed by separating the two coil wire bundles from each other. On the other hand, as shown in FIG. 3(e), similarly to the inner coil body 4a, the coil wire bundle 2 is arranged to form the peripheral surface of a virtual cylinder, and both upper and lower ends of the cylinder are aligned in the circumferential direction. mutually opposite and inner coil body 4a
By twisting in the opposite direction, as shown in FIG. 3(d), an outer coil body 4b in which the coil wire bundles 2 are closely spaced is formed. Also in the outer coil body 4b, in both i parts of the coil wire bundle 2, the two coil wire bundles are separated from each other to form a gap G.
Form it. Here, the inner diameter of the outer coil body 4b is set to be approximately equal to the outer diameter of the inner coil body 4a. The inner coil body 4a and outer coil body 4b thus formed are arranged in a nested manner so that the gaps G are substantially the same, as shown in FIG. 3(e). The gap G between the inner coil body 4a and the outer coil body 4b is matched as shown in FIG. As shown in (g), the gap G is shifted in the circumferential direction by one coil element #X1. In this state, the inner coil body 4a
The coil elements Ml adjacent in the radial direction of the outer coil body 4b are electrically connected to each other by laser welding or the like, and tjtJ2
A wave-wound coil with the shape shown in the figure is formed.
このようにして形成された無鉄芯電機子は、外コイル体
４ｂの外周面の適所で、第１図に示すように全周に亘っ
て各コイル素＃ｉ１の絶縁被覆層３が除去されるのであ
り、このようにしてコイル素・＠１の内部導体５を露出
させ、内部導体５の露出部分を９！流子セグメントとし
て利用するのである。In the thus formed ironless core armature, the insulating coating layer 3 of each coil element #i1 is removed at appropriate locations on the outer peripheral surface of the outer coil body 4b over the entire circumference, as shown in FIG. In this way, the internal conductor 5 of the coil element @1 is exposed, and the exposed portion of the internal conductor 5 is 9! It is used as a flow segment.
絶縁被覆層３の除去にあたっては、化Ｔ的、物理的ない
し機械的な除去方法のいずれの方法でもよいが、研削に
よる機械的な除去方法が簡単であるからこの方法で十分
である。このようにして形成された整流子セグメントが
刷子と安定性よく接触できるように、露出した内部導体
５の表面に酸化しにくい金や以等の貴金属をコーティン
グすればさらに望ましいものとなる。また、整流子セグ
メントの数が最大でコイル素線１の数だけとれるから、
分割数が非常に多くなり、リップルを低減することがで
きるのである。理論的には、整流子セグメントが５セグ
メントの場合にはリップルは約５％、３５セグメント以
上であればリップルは０゜１％以下となるのであり、本
発明ではこの程度にリップルを抑制するのはきわめて容
易に行なえるものである。The insulating coating layer 3 may be removed by chemical, physical, or mechanical methods, but mechanical removal by grinding is simple and sufficient. It would be more desirable if the surface of the exposed internal conductor 5 be coated with a noble metal such as gold or the like which is difficult to oxidize, so that the commutator segments formed in this manner can come into stable contact with the brushes. Also, since the maximum number of commutator segments is the number of coil wires 1,
The number of divisions becomes extremely large, and ripples can be reduced. Theoretically, if the number of commutator segments is 5, the ripple will be approximately 5%, and if the commutator has 35 or more segments, the ripple will be 0.1% or less.The present invention suppresses the ripple to this extent. is extremely easy to do.
上述の実施例では外コイル体４ｂの外周面に整流子セグ
メントを形成するようにしていたが、第４図に示すよう
に、内コイル体４ａの内周面において絶縁被覆／！３を
除去して整流子セグメントを形成しても同等の効果が得
られるものである。In the above-mentioned embodiment, the commutator segments were formed on the outer peripheral surface of the outer coil body 4b, but as shown in FIG. 4, the insulation coating /! Even if the commutator segment is formed by removing 3, the same effect can be obtained.
［発明の効果］
本発明は上述のように、絶縁被覆層を有した同じ長さの
複数本のコイル素線を互いに平行に配列した状態で仮想
的な円筒の周面に巻き付けることにより、各コイル素線
の両端がそれぞれ上記円筒の軸に直交する一対の円の周
上に略均等に配置されるようにした複数のコイル体を有
し、各コイル体を径方向において入子状に配置するとと
もに内側のコイル体と外側のコイル体とのコイル素線の
走行方向を互いに交差するようにし、内側のコイル体と
外側のコイル体との隣接する素線同士をコイル素線の端
部で電気的に接続することにより波巻きコイルとした無
鉄芯電槻子において、コイル素線の適所の絶縁被覆層を
いずれかのコイル体の全周に亘って除去して内部導体を
露出させた部分を整流子セグメントとして成るものであ
り、周面に整流子セグメントを形成しているから、刷子
との接触面積が大きくとれ、かつ全周に亘って整流子セ
グメントを略滑らかにして刷子との接触の安定性がよく
なり、整流特性が向上するという利点を有する。また、
１本の巻線ではなく複数本のコイル素線により波巻きコ
イルを形成しているので、各セグメント間の抵抗値を略
均等にするとともに、整流子セグメントの数を多くする
ことができ、リップルの抑制効果が高いという利点を有
する。[Effects of the Invention] As described above, the present invention has a plurality of coil wires of the same length each having an insulating coating layer arranged in parallel to each other and wound around the peripheral surface of a virtual cylinder. It has a plurality of coil bodies in which both ends of the coil wire are arranged approximately equally on the circumference of a pair of circles perpendicular to the axis of the cylinder, and each coil body is arranged nested in the radial direction. At the same time, the running directions of the coil wires of the inner coil body and the outer coil body are made to cross each other, and the adjacent wires of the inner coil body and the outer coil body are connected at the ends of the coil wires. In a non-ferrous core electric wire that is made into a wave-wound coil by electrical connection, the insulation coating layer of the coil wire is removed from the appropriate locations around the entire circumference of one of the coil bodies to expose the internal conductor. Since the commutator segments are formed on the circumferential surface, the contact area with the brush is large, and the commutator segments are almost smooth over the entire circumference, making it easy to contact the brush. This has the advantage of improved contact stability and improved rectification characteristics. Also,
Since the wave-wound coil is formed from multiple coil wires instead of a single winding, the resistance values between each segment can be made approximately equal, and the number of commutator segments can be increased, reducing ripple. It has the advantage of having a high suppressive effect.
ｆ５１図（ａ）（ｂ）はそれぞれ本発明の一実施例を示
す斜視図と断面図、ｆＩＳ２図（ａ）（ｂ）は同上の整
流子セグメントを形成する前の斜視図と断面図、第３図
（ａ）〜（ビ）は同上の製造工程を示す工程図、第４図
は本発明の他の実施例を示す斜視図、ｔｊＳ５図は従来
例を示す斜視図、第６図は同上の要部斜視図である。
１はコイル素線、３は絶縁被覆層、４ａは内コイル体、
４ｂは外コイル体、５は内部導体である。
代理人 弁理士 石 １）艮 七
１・・・コイル素線
第３〜
（ｆ）
斧５！Ｊ
唱６：゛１Figures f51 (a) and (b) are a perspective view and a cross-sectional view showing one embodiment of the present invention, respectively, Figures fIS2 (a) and (b) are a perspective view and a cross-sectional view of the same commutator segments before forming them, and 3(a) to 3(b) are process diagrams showing the same manufacturing process as above, FIG. 4 is a perspective view showing another embodiment of the present invention, tjS5 is a perspective view showing a conventional example, and FIG. 6 is same as above. FIG. 1 is a coil wire, 3 is an insulating coating layer, 4a is an inner coil body,
4b is an outer coil body, and 5 is an inner conductor. Agent Patent Attorney Ishi 1) Ai 71...Coil Wire No. 3~ (f) Ax 5! J chant 6:゛1
Claims (1)
線を互いに平行に配列した状態で仮想的な円筒の周面に
巻き付けることにより、各コイル素線の両端がそれぞれ
上記円筒の軸に直交する一対の円の周上に略均等に配置
されるようにした複数のコイル体を有し、各コイル体を
径方向において入子状に配置するとともに内側のコイル
体と外側のコイル体とのコイル素線の走行方向を互いに
交差するようにし、内側のコイル体と外側のコイル体と
の隣接する素線同士をコイル素線の端部で電気的に接続
することにより波巻きコイルとした無鉄芯電機子におい
て、コイル素線の適所の絶縁被覆層をいずれかのコイル
体の全周に亘って除去して内部導体を露出させた部分を
整流子セグメントとして成ることを特徴とする無鉄芯電
機子。(1) By arranging multiple coil wires of the same length and having an insulating coating layer in parallel to each other and winding them around the circumferential surface of a virtual cylinder, both ends of each coil wire are connected to the cylinder. It has a plurality of coil bodies arranged approximately equally on the circumference of a pair of circles perpendicular to the axis, and each coil body is arranged nested in the radial direction, and an inner coil body and an outer coil are arranged. A wave-wound coil is created by making the running directions of the coil strands cross each other and electrically connecting adjacent strands of the inner coil body and outer coil body at the ends of the coil strands. In the ironless core armature, the insulation coating layer of the coil wire is removed from the entire circumference of one of the coil bodies to expose the internal conductor, and the commutator segment is formed by Iron-free core armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14843487A JPS63314150A (en) | 1987-06-15 | 1987-06-15 | Coreless armature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14843487A JPS63314150A (en) | 1987-06-15 | 1987-06-15 | Coreless armature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63314150A true JPS63314150A (en) | 1988-12-22 |
Family
ID=15452706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14843487A Pending JPS63314150A (en) | 1987-06-15 | 1987-06-15 | Coreless armature |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63314150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ310049B6 (en) * | 2016-01-26 | 2024-06-19 | Mitsubishi Electric Corporation | An electric motor and a method of its manufacture |
-
1987
- 1987-06-15 JP JP14843487A patent/JPS63314150A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ310049B6 (en) * | 2016-01-26 | 2024-06-19 | Mitsubishi Electric Corporation | An electric motor and a method of its manufacture |
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