MOTOR CORE PART AND MOTOR PART

摘要

It is possible to provide a core part capable of increasing the volume occupied by a lead in a containing portion, a motor part having the core part, and a method for forming the motor part. The motor part includes a core part (10) having a T-shaped cross section and a lead (200) wound around teeth (11) of the core part (10). The core part (10) has the teeth (11), an outer circumference piece (12) arranged at one end of the teeth (11), and an inner circumference piece (13) arranged at the other end. A coil containing portion (14) is a space surrounded by the outer circumference of the teeth (11), an opposing surface (12a) of the outer circumference piece (12) against the inner circumference piece, and an opposing surface (13a) of the inner circumference piece (13) against the outer circumference piece. The outer circumference of the teeth (11) has a stepped portion having a height satisfying {D × (v3/2 × n (wherein D represents a diameter of the lead and n represents a natural number). The stepped planes (11a, 11b) forming the step are made parallel to a virtual plane (14a) forming the outer shape of the containing portion (14).