Armature of electric motor and electric motor

摘要

An armature of an electric motor includes a core and a winding. The core has a plurality of slots and a plurality of teeth formed between the slots. The winding is composed of a plurality of wires. The winding has a plurality of coil parts and connecting portions. The coil parts are inserted into the slots and wound around and across the teeth. The connecting portions connect the coil parts together. The winding has a twisted shape in the connecting portions.

主权项

1. An armature for an electric motor, the armature comprising:
a substantially cylindrical core including a plurality of slots and a plurality of teeth formed between the slots, the slots and teeth being arranged along a circumferential direction of the core; and a distributed winding made of a bundled plurality of wires, the winding including a plurality of coil parts arranged adjacent one another in the circumferential direction and a plurality of connecting portions connecting the coil parts together, each of the coil parts comprising a plurality of turns of the bundled plurality of wires around the teeth disposed between two non-adjacent slots among the slots such that the coil part is disposed in the two non-adjacent slots and spans across the teeth disposed circumferentially between the two non-adjacent slots, the winding having a twisted shape in each of the connecting portions.