STRUCTURE FOR FIXING LAMINATION SHEET OF CORE IN LINEAR MOTOR

摘要

PURPOSE: A lamination sheet fixing structure is provided to raise efficiency of a motor and save cost by reducing eddy current loss generated during the flow of magnetic flux. CONSTITUTION: A number of lamination sheets(1) are radially stacked in a cylindrical shape to define a stacked core(10). Each of the lamination sheets(1) has a bent portion(1e) with a certain width and height. The bent portions(1e) are bent in the same direction to define a ring-shaped structure. Each bent portion(1e) is placed on the next bent portion(1e) to fix the whole laminations sheets(1). Any additional parts for fix the stacked core(10) are not required, and eddy current loss generated during the flow of magnetic flux through the stacked core(10) is reduced when current is applied to a winding coil(20).