Abstract: Disclosed is an electric fluid pump wherein a radial outer circumferential surface of a stator and an insulating flat surface of an insulating base part, on which crossover wire guides are mounted and which is perpendicular to the outer circumferential surface of the stator, are covered with a synthetic resin coating of predetermined thickness. Since the insulating flat surface of the insulating base part on which the crossover wire guides are mounted and the outer circumferential surface of the stator are covered with the synthetic resin coating, it is possible that, even when a winding force is exerted in a radially inward direction of the stator by winding of crossover wires on the crossover wire guides, the synthetic resin coating on the outer circumferential surface of the stator suppresses changes in the mounting angles of the crossover wire guides and thereby prevents loosening of the crossover wires.

Abstract: An electric fluid pump includes at least one crossover guide including a guide groove to guide a takeout wire segment of a winding wire defining windings, to a connection terminal located on a radial inner side of the guide groove. The guide groove of the crossover guide includes a takeout groove segment extending in a direction decreasing a radial distance from a center axis of the stator gradually and thereby holding the takeout wire segment of one phase on a radial inner side of crossover wire segments of the other phases.

Abstract: Provided are a rotor structure capable of suppressing an increase in the number of process steps and an electric structure using the rotor structure. A rotor assembly 1 includes: a rotor core 9 having a plurality of electromagnetic steel sheets laminated together; a magnet insertion portion 10 formed in the electromagnetic steel sheets except the electromagnetic steel sheet 91 located at one axial end of the rotor core 9; a magnet 11 inserted in the magnetic insertion portion 10 from a side of the other axial end of the rotor core 9; a resin holder 12 arranged on the other axial end of the rotor core 9 so as to restrict axial movement of the magnet 11; and a resin mold part 13 formed integral with the resin holder 12 so as to cover the rotor core 9.