EI硅钢片参数表
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a=2c=A/3b=(1~2)a c=d c=A/6h=3c=A/2H=4c=2A/3B=5c=5A/6
l c =[(a/4+c+d/2)+(e/2+f/2+h)]*2=[(A-l m =2*（a+b+2)+∏*c S C =a*b S M =c*h A P =S C *S M
A Z =S C 2*S M /l m l m 线圈平均匝长G C （=λ*铁
芯体积）
V铁芯=A*H*b
Model
A（总长）B（总高）a（舌宽）
b(叠厚）
d（脚宽）c（窗宽）h（窗高）
84
4
17
10121416EI-3030251010
5515EI-353529.51057.519.53529.59.67.719.5EI-38.438.432.212.8 6.4 6.419.2EI-38.438.45212.8 6.4 6.438.4EI-414127136821413313821EI-424235147721EI-484840168824EI-505042149925EI-545445189927EI-575747.5199.59.528.5EI-60605020101030EI-66665522111133EI-757562.52512.512.537.5EI-76.276.263.525.412.712.738.1EI-78786526131339EI-78786722141439EI-84847028141442EI-85.885.871.528.614.314.342.9EI-96968032161648EI-10510587.53544
17.517.552.5EI-1081089036
18
1854
EI系列矽钢片
EI-288
2825
EI-1141149538191957 EI-12012010040202060 EI-13213211044222266 EI-133.2133.211144.422.222.266.6 EI-14414412440262672 EI-15015012550252575 EI-152.4152.412750.825.425.476.2 EI-16216213554272781 EI-16816814056282884 EI-171171142.55728.528.585.5 EI-17417414558292987 EI-18018015060303090 EI-19219216064323296 EI-210210175703535105 EI-2402402008016040120
d/2)+(e/2+f/2+h)]*2=[(A-2c)/4+c+(B-h)/2+h]*2=[(A+2c)/4+(B+h)/2]*2=2(c+h)+∏*（√[（(A+2c)/4）2+（(B+h)/2）2]-√
m 线圈平均匝长
H*b
H（E高）
Hole
Size(ΦD)l C （磁路长度cm）l m （匝长cm）
叠厚系数K S C （截面积cm 2）S M （窗口面积cm 2）A P (面积积
cm 4）4.90.6080.4134.0
0.760.517
4.4
0.9120.620
4.8 1.0640.724
5.2
1.2160.827
20 6.1 6.00.950.950.750.713
24.57.57.525.77.845.511.5277.58.3
28 3.58.532 3.59.7
3410.3
36 3.510.938411.540 3.512.144 4.513.3
5015.1
50.8515.452515.753516.256517.057.2517.364 6.219.470621.221.70.9514.639.1875134.413
72
5.521.8
21
0.685.90.95
76723.0 80724.2 88726.6 88.8726.9 98730.0 100830.3 101.6830.8 108832.7 112933.9 114934.5 116935.1 1201036.3 1281038.8 1401042.4 1601048.5
（(A+2c)/4）2+（(B+h)/2）2]-√(c2+h2))
A Z（结构系数cm5）G C（铁芯重
量）
0.05236.0 0.09845.0 0.12954.0 0.16063.1 0.19372.1 0.11346.0 88.182