该变压器模型采用EE型铁芯,通入单向交流电,通过maxwell的3D模型构建为两层,分为初级和次级同轴绕制。 1.建模(Model)
Project > Insert Maxwell 3D Design File>Save as> transformer
选择求解器类型:Maxwell > Solution Type> Magnetostatic
创建变压器铁芯框架
Draw > Box
Position: (-5.5,-15,0)
Box尺寸:(XSize, YSize, ZSize)>(11,30,26) Draw > Box
Position: (-5.5,5.5 ,5)
Box尺寸:(XSize, YSize, ZSize)>(11,4.5,16) 选中Box2
Edit > Duplicate > Around Axis
Axis: Z
Angle: 180 deg Total number: 2
选中Box1 ,Box2,Box2_1 Modeler > Boolean > Subtract Blank Parts: Box1
Tool Parts: Box2,Box2_1
不要选:“Clone tool objectsbefore subtracting” Draw > Box(创建Gap(缺口)) Position: (-5.5,15 ,12.98)
Box尺寸:(XSize, YSize, ZSize)>(11,30,0.04) 选中Box1 ,Box3
Modeler > Boolean > Subtract Blank Parts: Box1 Tool Parts: Box3
不要选:“Clone tool objectsbefore subtracting” 选中Box1
Modeler > Boolean > Separate Bodies
将分离后的模型分别重命名为:“Core_up”(原Box1)和“Core_down” 将两者的材料重设为:“ferrite”为铁氧体的材料属性。 创建线圈 初级绕组
Modeler > Grid Plane > YZ Draw > Rectangle
Position: (0,6 ,5.5)
Box尺寸:(XSize, YSize, ZSize)>(0,1,15) Modeler > Grid Plane > XY Draw > Rectangle
Position: (-6,-6 ,13)
Box尺寸:(XSize, YSize, ZSize)>(12,12,0)
选中Rectangle2
Modeler > Delete Last Operation(形成Rectangle1围绕的轨迹)
选中Rectangle1,Rectangle2
Draw > Sweep > Along Path(可以形成环形线圈) Angle of twist: 0deg Draft Angle: 0deg Draft type: Round 次级绕组
Modeler > Grid Plane > YZ Draw > Rectangle
Position: (0,7.5 ,5.5)
Box尺寸:(XSize, YSize, ZSize)>(0,2,15) Modeler > Grid Plane > XY Draw > Rectangle
Position: (-7.5,-7.5 ,13)
Box尺寸:(XSize, YSize, ZSize)>(15,15,0)
选中Rectangle4
Modeler > Delete Last Operation 选中Rectangle3,Rectangle4 Draw > Sweep > Along Path Angle of twist: 0deg Draft Angle: 0deg Draft type: Round
将Rectangle2和 Rectangle4重命名为:Coil_in, Coil_out