JPH047571B2 - - Google Patents
Info
- Publication number
- JPH047571B2 JPH047571B2 JP59111596A JP11159684A JPH047571B2 JP H047571 B2 JPH047571 B2 JP H047571B2 JP 59111596 A JP59111596 A JP 59111596A JP 11159684 A JP11159684 A JP 11159684A JP H047571 B2 JPH047571 B2 JP H047571B2
- Authority
- JP
- Japan
- Prior art keywords
- insulated winding
- conductor
- wire
- wires
- thin
- 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 - Lifetime
Links
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 23
- 239000004020 conductor Substances 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 18
- 239000005751 Copper oxide Substances 0.000 claims description 9
- 229910000431 copper oxide Inorganic materials 0.000 claims description 9
- 229960004643 cupric oxide Drugs 0.000 description 15
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 210000003298 dental enamel Anatomy 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 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
- 230000000694 effects Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002320 enamel (paints) Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coil Winding Methods And Apparatuses (AREA)
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、大容量変圧器等に用いて好適な絶
縁巻線とその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an insulated winding suitable for use in large-capacity transformers, etc., and a method for manufacturing the same.
第３図は、変圧器に用いられる従来の絶縁巻線
の構成を示す断面図である。
FIG. 3 is a cross-sectional view showing the structure of a conventional insulated winding used in a transformer.
絶縁巻線１は、素線２が複数本撚り合わされ、
外周に絶縁層３が設けられた構造となつており、
鉄心に巻回した場合、隣接する絶縁巻線１，１の
間に隙間が生じないように四角形に圧縮整形され
ている。また、素線２は、導体４と、その外周に
形成された絶縁皮膜５とからなるもので、絶縁皮
膜５としては、ホルマーエナメルが用いられ、そ
の厚さは50μｍ程度である。 The insulated winding 1 is made up of a plurality of wires 2 twisted together,
It has a structure in which an insulating layer 3 is provided on the outer periphery,
When wound around an iron core, it is compressed into a rectangular shape so that there is no gap between adjacent insulated windings 1, 1. The strand 2 is made up of a conductor 4 and an insulating film 5 formed on its outer periphery. The insulating film 5 is made of Former enamel and has a thickness of about 50 μm.
ここで、絶縁巻線１が、複数本の素線２，２…
によつて構成されている理由は、渦電流損を低減
させるためである。すなわち、絶縁巻線１を変圧
器の鉄心に巻回した場合、鉄心から発生する交番
漏れ磁束によつて導体４内には渦電流が生じる。
このため、導体４内の電流密度が一様でなくな
り、交流抵抗が増加して、損失が大きくなる。こ
の損失は、導体４の径の４乗に比例するので、径
の細い、かつ絶縁された導体４を多数撚り合わせ
ることにより、全体としての損失を低減させるこ
とができる。 Here, the insulated winding 1 includes a plurality of wires 2, 2...
The reason for this structure is to reduce eddy current loss. That is, when the insulated winding 1 is wound around the iron core of a transformer, an eddy current is generated in the conductor 4 due to alternating leakage magnetic flux generated from the iron core.
For this reason, the current density within the conductor 4 is no longer uniform, AC resistance increases, and loss increases. Since this loss is proportional to the fourth power of the diameter of the conductor 4, the overall loss can be reduced by twisting a large number of insulated conductors 4 with a small diameter.
ところで、従来、導体４には、径が２〜５mmの
ものが用いられているが、前述したように、渦電
流損を低減するためには、さらに径の細いもの、
例えば、0.5〜１mmφのものを用いた方が効果が
ある。しかし、このような細い導体４，４…の１
本１本にエナメル皮膜を施し、絶縁巻線１を構成
すると、径が大きくなつてしまい、変圧器本体お
よび製造装置が大型化するという問題があつた。
またエナメルを多量に使用するために製造コスト
が高くなるという問題もあつた。
By the way, conventionally, conductors 4 with diameters of 2 to 5 mm have been used, but as mentioned above, in order to reduce eddy current loss, conductors with even smaller diameters,
For example, it is more effective to use a diameter of 0.5 to 1 mm. However, one of these thin conductors 4, 4...
When the insulated winding 1 is constructed by applying an enamel coating to a single wire, the diameter becomes large, resulting in a problem that the transformer body and manufacturing equipment become large.
Another problem was that the manufacturing cost was high because a large amount of enamel was used.
この発明は、酸化銅皮膜、詳しくは酸化第二銅
（CuO）の皮膜が、極めて薄く、（0.2〜3μｍ）か
つ絶縁性に優れていることに着眼してなされたも
ので、上記問題点を解決するために、複数本の細
素線を撚り合わせた後、前記各細素線の表面に前
記酸化銅皮膜を形成して１本の導体とし、これを
絶縁被覆したものを複数本撚り合わせて絶縁巻線
を構成したことを特徴とする。
This invention was made based on the fact that a copper oxide film, specifically a cupric oxide (CuO) film, is extremely thin (0.2 to 3 μm) and has excellent insulation properties, and it solves the above problems. In order to solve the problem, after twisting multiple thin wires together, the copper oxide film is formed on the surface of each thin wire to form a single conductor, and multiple wires with an insulation coating are twisted together. The invention is characterized in that the insulated winding is configured by
以下図面を参照し、この発明の一実施例につい
て説明する。
An embodiment of the present invention will be described below with reference to the drawings.
第１図および第２図は、各々この発明の一実施
例に係る素線１０、および絶縁巻線１１の構成を
示す断面図であり、これらは、以下に示す製造工
程により製造される。 FIGS. 1 and 2 are cross-sectional views showing the configurations of a strand 10 and an insulated winding 11, respectively, according to an embodiment of the present invention, which are manufactured by the manufacturing process described below.
0.2〜１mmφの銅の細素線１２を７〜61本同
心撚りして導体１３を構成する。 The conductor 13 is constructed by concentrically twisting 7 to 61 fine copper wires 12 having a diameter of 0.2 to 1 mm.
この導体１３に酸化処理を施し、各細素線１
２の表面に酸化第二銅の皮膜１４を形成する。
この処理は以下に示すように行なわれる。すな
わち導体１３を洗浄した後、亜塩素酸ナトリウ
ムとカセイソーダの各５％水溶液（90〜100℃）
などの酸化処理液の中に浸せきし、各細素線１
２の表面に酸化第二銅（CuO）の皮膜１４を形
成する。この場合、浸せき時間によつて前記酸
化第二銅の皮膜１４の厚みを変えることができ
るが、通常、0.2〜3μｍ程度の厚みにする。酸
化第二銅の体積抵抗率は105Ω−cmであるから、
この程度の厚みで十分絶縁効力を有する。 This conductor 13 is subjected to oxidation treatment, and each fine wire 1
A film 14 of cupric oxide is formed on the surface of 2.
This process is performed as shown below. That is, after cleaning the conductor 13, a 5% aqueous solution each of sodium chlorite and caustic soda (90 to 100°C)
Each fine wire 1
A film 14 of cupric oxide (CuO) is formed on the surface of 2. In this case, the thickness of the cupric oxide film 14 can be changed depending on the immersion time, but it is usually about 0.2 to 3 μm thick. Since the volume resistivity of cupric oxide is 10 5 Ω-cm,
This thickness has sufficient insulation effect.
導体１３の外周に、エナメル、プラスチツ
ク、紙等よりなる絶縁皮膜１５を設ける。 An insulating film 15 made of enamel, plastic, paper, etc. is provided around the outer periphery of the conductor 13.
以上〜の工程で、素線１０が製造される。 Through the above steps, the wire 10 is manufactured.
この素線１０を19〜91本同心撚りしながら、
所望の断面形状、例えば四角形に圧縮整形す
る。 While concentrically twisting 19 to 91 of these 10 wires,
It is compressed and shaped into a desired cross-sectional shape, for example, a square.
その外周にエナメル、プラスチツク、紙等よ
りなる絶縁層１６を設ける。 An insulating layer 16 made of enamel, plastic, paper, etc. is provided around its outer periphery.
以上〜の工程で絶縁巻線１１が製造され
る。この絶縁巻線１１において、細素線１２の径
を1.0mm、細素線１２の本数を７本、素線１０の
本数を37本とし、コイル巻（５層×10段＝50ター
ン）した。このコイルの直流抵抗と、50Hz200A
通電時における交流抵抗との比を測定すると、
1.04であつた。従来品の前記測定値が1.21である
から、渦電流損は著しく改善されていることにな
る。また、上述した方法によれば、従来に比べ、
非常に径の小さい細素線（実施例では、0.2〜１
mmφ）に酸化銅の被膜を形成することができる。
このため、各細素線を流れる電流を小さくできる
ので、各細素線に発生する磁界が小さくなる。し
たがつて、各細素線間に働く吸引力が小さくなる
ため、酸化銅被膜の摩擦が小さくなる。この結
果、各細素線に形成された酸化銅被膜の摩擦によ
る劣化を低減することができる。 The insulated winding 11 is manufactured through the above steps. In this insulated winding 11, the diameter of the thin wire 12 is 1.0 mm, the number of thin wires 12 is 7, the number of wires 10 is 37, and the coil is wound (5 layers x 10 stages = 50 turns). . DC resistance of this coil and 50Hz200A
When measuring the ratio to AC resistance when current is applied,
It was 1.04. Since the measured value of the conventional product is 1.21, it means that the eddy current loss has been significantly improved. Furthermore, according to the method described above, compared to the conventional method,
Thin wire with a very small diameter (0.2 to 1
mmφ) can be coated with copper oxide.
Therefore, the current flowing through each thin strand can be reduced, so that the magnetic field generated in each thin strand is reduced. Therefore, the attraction force acting between the fine wires becomes smaller, and the friction of the copper oxide coating becomes smaller. As a result, deterioration of the copper oxide coating formed on each thin wire due to friction can be reduced.
以上説明したようにこの発明によれば、複数本
の細素線を撚り合わせた後、前記各細素線の表面
に酸化銅皮膜を形成して一本の導体とし、これを
絶縁被膜したものを複数本撚り合わせて絶縁巻線
を構成したので、従来の絶縁巻線と占積率を変え
ずに、渦電流損を著しく低減させることができ、
かつ、絶縁銅被膜の摩擦による劣化を著しく低減
させることができるという利点が得られる。
As explained above, according to the present invention, after twisting a plurality of fine wires together, a copper oxide film is formed on the surface of each of the fine wires to form a single conductor, and this is coated with an insulating coating. Since the insulated winding wire is constructed by twisting multiple wires together, eddy current loss can be significantly reduced without changing the space factor compared to conventional insulated winding wires.
In addition, there is an advantage that deterioration of the insulating copper coating due to friction can be significantly reduced.
第１図は、この発明の一実施例に係る素線の構
成を示す断面図、第２図は同実施例による絶縁巻
線の構成を示す断面図、第３図は、従来の絶縁巻
線の構成を示す断面図である。
１，１１……絶縁巻線、２，１０……素線（絶
縁被覆した導体）、３，１６……絶縁層、４，１
３……導体、１２……細素線、１４……酸化第二
銅の皮膜（酸化銅皮膜）。
FIG. 1 is a sectional view showing the structure of a wire according to an embodiment of the present invention, FIG. 2 is a sectional view showing the structure of an insulated winding wire according to the same embodiment, and FIG. 3 is a sectional view showing the structure of a conventional insulated winding wire. FIG. 1,11...Insulated winding wire, 2,10...Element wire (conductor coated with insulation), 3,16...Insulating layer, 4,1
3...Conductor, 12...Fine wire, 14...Copper oxide film (copper oxide film).
Claims (1)
なる絶縁巻線において、前記導体は、細素線が撚
り合わされて構成され、かつ前記細素線の表面に
は酸化銅皮膜が形成されていることを特徴とする
絶縁巻線。1. In an insulated winding formed by twisting together a plurality of insulating coated conductors, the conductor is composed of fine wires twisted together, and a copper oxide film is formed on the surface of the fine wires. An insulated winding wire featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59111596A JPS60254714A (en) | 1984-05-31 | 1984-05-31 | Manufacture of insulated winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59111596A JPS60254714A (en) | 1984-05-31 | 1984-05-31 | Manufacture of insulated winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60254714A JPS60254714A (en) | 1985-12-16 |
| JPH047571B2 true JPH047571B2 (en) | 1992-02-12 |
Family
ID=14565363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59111596A Granted JPS60254714A (en) | 1984-05-31 | 1984-05-31 | Manufacture of insulated winding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60254714A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1319955A1 (en) * | 2001-12-13 | 2003-06-18 | Abb Research Ltd. | Method and apparatus for inspecting wire ropes for the production of coils |
| JP5814291B2 (en) * | 2013-04-11 | 2015-11-17 | トヨタ自動車株式会社 | Manufacturing method of assembly of strands |
| JP6000314B2 (en) * | 2013-10-22 | 2016-09-28 | サムソン エレクトロ−メカニックス カンパニーリミテッド． | Chip electronic component and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5780610A (en) * | 1980-11-10 | 1982-05-20 | Furukawa Electric Co Ltd | Method of producing strand insulated cable conductor |
| JPH033322A (en) * | 1989-05-31 | 1991-01-09 | Shin Etsu Handotai Co Ltd | Liquid phase epitaxy method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106670U (en) * | 1979-01-23 | 1980-07-25 |
-
1984
- 1984-05-31 JP JP59111596A patent/JPS60254714A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5780610A (en) * | 1980-11-10 | 1982-05-20 | Furukawa Electric Co Ltd | Method of producing strand insulated cable conductor |
| JPH033322A (en) * | 1989-05-31 | 1991-01-09 | Shin Etsu Handotai Co Ltd | Liquid phase epitaxy method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60254714A (en) | 1985-12-16 |
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