RESIN BOBBIN FOR ELECTRIC MOTOR, AND ELECTRIC MOTOR

摘要

Provided is a stator of an electric motor having a resin bobbin capable of preventing damage to the bobbin teeth, even when a load is applied via a coil during a magnetizing step. The resin bobbin (10), which is mounted on stator teeth disposed in an annular shape on the stator (1) of the electric motor, is characterized in comprising: teeth (13) for wrapping a winding wire; a frame part (11) for supporting the teeth (13); and front edge parts (14) for retaining the wrapped winding wire, provided at the end of the teeth (13), the teeth (13) having a plurality of concave grooves (18) along the rotation direction of the axis of rotation of the electric motor on the face contacting the stator teeth, or on the back face of the face contacting the stator teeth, and the concave grooves (18) extending substantially perpendicularly in relation to the axis of rotation of the electric motor. This type of configuration enables prevention of damage to the teeth (13) by a high load force applied via the winding wire during the magnetizing step.