COIL FOR MOTOR, METHOD FOR MANUFACTURING COIL FOR MOTOR, AND MOTOR

A coil for a motor includes: a coil which is formed of a conductor wound around an axis; and a plurality of cooling portions which are provided to correspond to different winding layers in the conductor, wherein each of the cooling portions includes a primary portion protruding from the winding layer radially outward and a secondary portion extending from a tip of the primary portion toward a first side in a direction of the axis, wherein the primary portions are formed so that the protrusion length of one of the primary portions, which is located closer to a second side in the direction of the axis than another of the primary portions, is longer than that of the another of the primary portions, wherein the secondary portions are formed so that one of the secondary portions, which is joined to one of the primary portions located closer to the second side in the direction of the axis than another of the primary portions, is positioned further outside in the radial direction with respect to another of the secondary portions joined to the another of the primary portions, and wherein the plurality of secondary portions are arranged to overlap each other at intervals in a radial direction.