エンジンルーム、他 Engine Compartment, etc. 圧粉軟磁性材料の応用 Applications of Powder Soft Magnetic Core 圧粉軟磁性材料の特長 Features of Powder Soft Magnetic Core ● 高周波領域での低損失 ● 磁気等方性、 3D形状成形 Low Core-loss at High-frequency Magnetic Isotropy, 3-dimensional Formation 【鉄損の周波数依存性】 圧粉軟磁性材料 : 【Frequency dependency of iron loss】 電磁鋼板:Laminated steel Powder soft magnetic core 巻線(Winding) 圧粉軟磁性材料 (Powder soft magnetic core) 電磁鋼板(35A360) 磁束 (Magnetic Flux) コア (Core) (Laminated steel) 過電流損 Eddy current loss 3次元磁気回路 (3-dimensional magnetic circuit) ヒステリシス損 Hysteresis loss デッドスペース (Dead space) 巻線長の低減:銅損低減 (reducing winding length, Cupper loss) 渦電流の抑制能が高く、 高周波域での鉄損増大を抑えることが可能 ● ● Powder soft magnetic core shows low iron loss in high frequency region because of low eddy current loss characteristic. 開発材の特長 全方向で磁力一定 = 設計自由度が高い 設計により占積率向上、銅線使用量低減が可能 Constant magnetic flux density in all direction enables 3D-Design, so improvement of lamination factor and reduction of usage of copper wire is possible for Powder soft magnetic core. Features of Developed Material Inverse of resistivity(normalized value) 開発絶縁皮膜断面TEM像 TEM image of developed insulated layer Silicone resin Phosphate glass (enhanced heat-proof) Fe 低鉄損化効果 Coreloss reduction effect 12 鉄損変化 Reduction of Core Loss ● 10 8 Limit for conventional layer 6 Limit for developed layer 4 2 0 300 400 500 600 700 Effective temperature range for stress relief Limit for conventional layer 応用ターゲット Target Applications Iron loss, W 10/f(W/kg) Conventional Material 100 Laminated steel(0.50mmt) 80 Laminated steel(0.35mmt) 60 40 Developed Material 20 0 0 200 400 600 800 1000 Frequency, (Hz) f Iron loss, W 1/f(W/kg) 200 Bm=1.0T Conventional Material 150 Laminated steel(0.10mmt) Magneric Flux Density, Bm(Tesla) 開発材の諸特性 Bm=1.0T Laminated Steel tran sfor mer Ta (Hi rget gh B )( Mot or GneFirst nra tion Conventional Material T Hig arg h F et req .) Sendust Permalloy Sen sor , Ac tua tor Amorphous core I Chnver alk ter Co , il Ferrite 100 Driving frequency, (Hz) f 50 Developed Material 0 0 10 20 30 40 Frequency, (Hz) f [email protected] 15 Heat treatment temperature, T(℃) Characteristics of developed Material 120 (300℃焼鈍を100) 800 Heat treatment temperature, T(℃) 140 Limit for developed layer 50 高速モータ(High frequency motor) ● 小型・高出力リアクトル (Small size and High power Reactor) ex. Reactor for Boost Converter ●
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