Patent ID: 6646536
Filing Date: 2003-11-11
Classification: H02K

Abstract:
A single coil of a coil unit for a linear motor, whereinan entire coil has an approximately rectangular ring-like shape, two sides of said rectangle opposing to each other function as a pair of effective conductors for contributing to generating a thrust force for a moving body of the linear motor, and the other two sides opposing to each other function as a pair of connecting conductors for connecting between the effective conductors, parts close to ends on the effective conductors are bent at an approximately right angle with respect to a coil plane such that the pair of connecting conductors are offset from the coil plane, and extend in parallel with the coil plane, where the coil plane is defined as a plane including individual axial centers of the pair of effective conductors, and a transverse section of said connecting conductors is in an approximately trapezoidal shape including parallel sides approximately perpendicular to the coil plane, and a tilted side opposing to the coil plane and tilted in a direction opposite to the direction of the offset of the connecting conductors in this extending state.