Patent ID: 9209659
Filing Date: 2015-12-08
Classification: H02K

Abstract:
1. An armature for a rotating electric machine, the armature comprising: an armature core including a substantially annular main body to be disposed in radial opposition to a rotor of the rotating electric machine, the armature core also including a plurality of teeth each extending from the main body radially toward the rotor and spaced from one another in a circumferential direction of the main body; and an armature coil arranged between the teeth of the armature core, wherein for each of the teeth of the armature core, there are formed a protrusion and a pair of claws at a distal end of the tooth, the protrusion protrudes from a circumferentially central part of the distal end of the tooth radially toward the rotor and toward a rotating shaft that rotates together with the rotor, the claws extend, respectively on opposite circumferential sides of the protrusion, from the distal end of the tooth toward the rotor, each of the claws has a smaller width at its distal end than at its proximal end and is arcuate-shaped so as to engage with and thereby retain the armature coil, the protrusion has a distal end surface that is curved so as to lie in an imaginary cylindrical plane, the imaginary cylindrical plane being coaxial with a center of rotation of the rotor, and each of the claws has a distal end portion falling on the imaginary cylindrical plane.