| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a stator for an electric motor designed such that, even in a case where a bracket and a stator iron core are separated from each other and fitted together during the maintenance inspection of a bearing, a decrease in the coaxial degree of the bracket and stator iron core is prevented, and hence performance degradation is prevented.SOLUTION: A stator comprises: a steel plate laminate formed in a cylindrical shape with a rotor accommodation hole therein, from a plurality of annular steel plates arranged in layers; end plates arranged at both ends of the steel plate laminate, which are provided with a plurality of through-holes communicating with the through holes of the steel plate laminate, which have a central hole, and which are also provided on the inner edge part with a ring-like fitting projecting part or fitting recessed part, which projects in the axial direction thereof; and a rivet pin inserted in the through-holes of the end plates and steel plate laminate and fastening both. The stator further comprises: a stator iron core in which the outer peripheral part of the fitting projecting part or the inner peripheral part of the fitting recessed part is finish processed after fastened with the rivet pin and then aligned with the rotor accommodation hole; and a bracket having a fitting recessed part or fitting projecting part fitted on the fitting projecting part or in the fitting recessed part, and a bearing hold part holding a bearing supporting a rotor.</p> |
