Patent ID: 8350441

Claim:
A motor comprising: a shaft; a rotor fixed to the shaft; a tubular stator arranged to surround the rotor; and a housing arranged to contain the rotor and the stator and rotatably support the shaft; wherein the stator includes: a core including a plurality of teeth; a plurality of coils each of which is defined by a conductor wire wound around a separate one of the plurality of teeth; and electrically insulating tubes; the core is defined by a combination of a plurality of unit cores each of which includes a separate one of the plurality of teeth; the plurality of coils include two or more continuous coils defined by a single line of the conductor wire; each of the electrically insulating tubes is arranged to cover at least a portion of the conductor wire which passes between at least two of the continuous coils which are defined by the single line of the conductor wire; and at least one of the electrically insulating tubes is arranged to overlap a first one of the electrically insulating tubes and to also be overlapped by a second one of the electrically insulating tubes.