圧粉軟磁性材料の応用 Applications of Powder Soft Magnetic Core

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
●