JPH02271509A - Manufacture of wound magnetic core - Google Patents
Manufacture of wound magnetic coreInfo
- Publication number
- JPH02271509A JPH02271509A JP9181089A JP9181089A JPH02271509A JP H02271509 A JPH02271509 A JP H02271509A JP 9181089 A JP9181089 A JP 9181089A JP 9181089 A JP9181089 A JP 9181089A JP H02271509 A JPH02271509 A JP H02271509A
- Authority
- JP
- Japan
- Prior art keywords
- wound
- magnetic core
- magnetic
- core
- thin belt
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 3
- 239000000696 magnetic material Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 abstract description 5
- 229920002050 silicone resin Polymers 0.000 abstract description 5
- 239000000314 lubricant Substances 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011259 mixed solution Substances 0.000 abstract description 2
- 229920001296 polysiloxane Polymers 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 210000004709 eyebrow Anatomy 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 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
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
Landscapes
- Manufacturing Cores, Coils, And Magnets (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、電子機器等に用いられる巻磁心に関する
。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a wound magnetic core used in electrical machinery, electronic equipment, etc.
（従来の技術）
アモルファス磁性薄帯などの合金磁性材料を巻回してな
る巻磁心は、変圧器、リアクトルなどの電気機器用とし
て、あるいはスイッチング電源などの電子機器用として
広く使用されている。このような巻磁心に必要とされる
特性は次の通りであ■磁気特性が良好であること
■層問うず電流が生じないこと
■なるべく小型であること
アモルファス磁性薄帯は磁気特性がすぐれており、最近
は広く使用される様になってきた。しかしこの材料は一
般に表面に絶縁処理が施されていないことから、層問う
ず電流を防止する目的で、巻回成形時に、表面に絶縁物
を塗布するのが普通である６巻磁心は成形後に熱処理を
行なうことから、絶縁物は、絶縁性とともに耐熱性を必
要とする。そのため従来は、酸化マグネシウム粉末や、
酸化けい素粉束などの酸化物粒を表面に塗布したアモル
ファス磁性合金の薄帯を巻回して巻磁心を形成するよう
にしていた。(Prior Art) A wound magnetic core formed by winding an alloy magnetic material such as an amorphous magnetic ribbon is widely used for electrical equipment such as transformers and reactors, or for electronic equipment such as switching power supplies. The properties required for such a wound magnetic core are as follows: ■ It must have good magnetic properties. ■ It must not generate any current in any layer. ■ It must be as small as possible. Amorphous magnetic ribbons have excellent magnetic properties. Recently, it has become widely used. However, since this material generally does not have insulation treatment applied to its surface, an insulating material is usually applied to the surface during winding and forming to prevent electrical current from flowing in any layer. Since heat treatment is performed, the insulator needs to have both insulation and heat resistance. Therefore, conventionally, magnesium oxide powder,
A wound core was formed by winding a thin ribbon of amorphous magnetic alloy whose surface was coated with oxide grains such as silicon oxide powder bundles.
（発明が解決しようとする１１題）
しかしながら、このような従来の巻磁心においては層間
絶縁により占積率が低下してしまい、磁心寸法が大きく
なるという欠点がある。とくに、薄帯の幅が広くなると
きにこの傾向がいちじるしく、占積率は６０％台にまで
低下する。また、巻取時の張力を大きくしてもほとんど
効果が見られない。そのため、従来方法の欠点を改良し
た占積率の良い巻磁心が望まれていた。(11 Problems to be Solved by the Invention) However, such conventional wound magnetic cores have the disadvantage that the space factor decreases due to interlayer insulation and the core size increases. This tendency is particularly noticeable when the width of the ribbon becomes wide, and the space factor drops to about 60%. Further, even if the tension at the time of winding is increased, almost no effect is observed. Therefore, there has been a desire for a wound core with a good space factor that overcomes the drawbacks of the conventional method.
占積率を改善するための通常の手段は、巻回時の張力を
増大させることである。しかし、アモルファス磁性薄帯
のように１表面かやへ粗い場合には、そして更に、酸化
マグネシウム粉末などの酸化物粉末を表面に塗布した場
合には、面と面との接触部がすべりにくいことから、磁
心巻回時の張力を大きくしても、占積率の向上にはほと
んど効果がない。A common means to improve the space factor is to increase the tension during winding. However, when one surface is rough, such as an amorphous magnetic ribbon, and when an oxide powder such as magnesium oxide powder is applied to the surface, the contact area between the surfaces becomes difficult to slip. Therefore, increasing the tension when winding the magnetic core has little effect on improving the space factor.
したがって、もし占積率が改善できるとすれば、磁性薄
帯の面に潤滑材を塗布することによって、面間のすベリ
を容易にすることが必要であろう。Therefore, if the space factor could be improved, it would be necessary to apply a lubricant to the surface of the magnetic ribbon to make it easier to slip between the surfaces.
そのためには、絶縁物が潤滑材を兼ねればよい。For this purpose, the insulator may also serve as a lubricant.
本発明は、上記の課題を解決するため占積率の良好な巻
磁心を製作する方法を提供することを目的としている。An object of the present invention is to provide a method of manufacturing a wound core with a good space factor in order to solve the above problems.
〔発明の構成〕
（ａ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においては、合金磁性材
料からなる薄帯を巻回して磁心を形成する巻磁心の製造
方法において、前記薄帯の表面に潤滑性の良い略球状の
絶縁物粒を塗布したのち巻回して磁心を形成するように
する。[Structure of the Invention] (Means for Solving Problem a) In order to achieve the above object, the present invention provides a method for manufacturing a wound magnetic core in which a magnetic core is formed by winding a thin ribbon made of an alloy magnetic material. Approximately spherical insulating particles with good lubricity are applied to the surface of the band and then wound to form a magnetic core.
（作用）
表面に塗布された球状粒子は、磁性薄帯の眉間に介在し
て潤滑剤として作用し、すべりを良くする。その結果、
巻回時の張力によって、磁心を密に巻回することが出来
、したがって磁心の占積率を向上させることが出来る。(Function) The spherical particles applied to the surface act as a lubricant between the eyebrows of the magnetic ribbon and improve sliding. the result,
The tension during winding allows the magnetic core to be tightly wound, thereby improving the space factor of the magnetic core.
（実施例）
以下本発明の一実施例について図面を参照して説明する
。(Example) An example of the present invention will be described below with reference to the drawings.
第１図に本発明の巻磁心の製作手順を示す。素材である
アモルファス磁性薄帯１は、ローラー２によって塗料３
が塗布される。塗料３は１球状シリコーン樹脂粉末７を
、水とアルコールの混合液に分散させたものを使用した
。塗布後のアモルファス磁性薄帯は乾燥器４を通過する
間に乾燥され。FIG. 1 shows the manufacturing procedure of the wound magnetic core of the present invention. The amorphous magnetic ribbon 1, which is the raw material, is coated with paint 3 by a roller 2.
is applied. The paint 3 used was one in which a spherical silicone resin powder 7 was dispersed in a mixed solution of water and alcohol. The amorphous magnetic ribbon after coating is dried while passing through the dryer 4.
ガイドローラー５に導びかれた後巻磁心６として巻き取
られる。It is guided by a guide roller 5 and wound up as a post-wound magnetic core 6.
巻磁心６において、アモルファス磁性薄帯１の眉間には
、球状のシリコーン粒子７が介在している。したがって
第２図に示すように、巻取り時に張力Ｐを加えたとき、
アモルファス磁性薄帯は容易にすべりを１するようにな
る。In the wound magnetic core 6, spherical silicone particles 7 are interposed between the eyebrows of the amorphous magnetic ribbon 1. Therefore, as shown in Fig. 2, when tension P is applied during winding,
Amorphous magnetic ribbons easily become slippery.
その結果、磁心は締って巻き取られることになり、占積
率は向上する。本実施例においては占積率は７５％であ
った。As a result, the magnetic core is tightly wound and the space factor is improved. In this example, the space factor was 75%.
次に本発明の他の実施例について述べる。Next, other embodiments of the present invention will be described.
上記実施例においては、球状の絶縁物粒としてシリコー
ン樹脂を用いたが１球状のセラミックス粒子など潤滑性
葡良い他の絶縁材料を用いるようにしても同様の効果を
有することはもちろんである。In the above embodiment, silicone resin is used as the spherical insulating particles, but it goes without saying that other insulating materials with good lubricity, such as spherical ceramic particles, can also be used with the same effect.
以上述べたように、アモルファス磁性薄帯等の合金磁性
材料からなる薄帯の表面に１球状シリコーン樹脂等の潤
滑性の良い略球状の絶縁物粒を塗布したことにより、磁
心の巻取りにおいて張力が有効に作用し、占積率が高く
、かつ眉間絶縁性の良い巻磁心を得ることが出来る。As mentioned above, by applying approximately spherical insulating particles with good lubricity, such as spherical silicone resin, to the surface of a ribbon made of alloyed magnetic material such as an amorphous magnetic ribbon, the tension can be increased during winding of the magnetic core. It is possible to obtain a wound core that functions effectively, has a high space factor, and has good glabellar insulation.
第１図は本発明の一実施例による巻磁心の製作手順の説
明図、第２図は第１図の巻磁心部分の部分断面図である
。
１・・・アモルファス磁性薄帯 ２・・・ローラー３
・・・塗料 ４・・・乾燥器５・・・ガイ
ドローラー ６・・・巻磁心７・・・シリコーン樹脂
粉末
代理人 弁理士 則 近 憲 佑
同 第子丸 健FIG. 1 is an explanatory diagram of the manufacturing procedure of a wound magnetic core according to an embodiment of the present invention, and FIG. 2 is a partial sectional view of the wound magnetic core portion of FIG. 1. 1... Amorphous magnetic ribbon 2... Roller 3
...Paint 4...Dryer 5...Guide roller 6...Wound magnetic core 7...Silicone resin powder agent Patent attorney Nori Chika Ken Yudo Ken Daishimaru
Claims (1)
磁心の製造方法において、前記薄帯の表面に潤滑性の良
い略球状の絶縁物粒を塗布したのち巻回して磁心を形成
することを特徴とする巻磁心の製造方法。A method for manufacturing a wound magnetic core in which a magnetic core is formed by winding a thin ribbon made of an alloy magnetic material, in which approximately spherical insulating particles with good lubricity are applied to the surface of the thin ribbon and then wound to form a magnetic core. A method of manufacturing a wound magnetic core characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9181089A JPH02271509A (en) | 1989-04-13 | 1989-04-13 | Manufacture of wound magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9181089A JPH02271509A (en) | 1989-04-13 | 1989-04-13 | Manufacture of wound magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02271509A true JPH02271509A (en) | 1990-11-06 |
Family
ID=14036984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9181089A Pending JPH02271509A (en) | 1989-04-13 | 1989-04-13 | Manufacture of wound magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02271509A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2453673B (en) * | 2006-04-25 | 2010-12-15 | Vacuumschmelze Gmbh & Co Kg | Magnet core, process for producing a magnet core and residual current device |
| JP2021077677A (en) * | 2019-11-05 | 2021-05-20 | 日本製鉄株式会社 | Wound iron core, silicon steel plate, and manufacturing method thereof |
-
1989
- 1989-04-13 JP JP9181089A patent/JPH02271509A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2453673B (en) * | 2006-04-25 | 2010-12-15 | Vacuumschmelze Gmbh & Co Kg | Magnet core, process for producing a magnet core and residual current device |
| JP2021077677A (en) * | 2019-11-05 | 2021-05-20 | 日本製鉄株式会社 | Wound iron core, silicon steel plate, and manufacturing method thereof |
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