Patent ID: 9496762
Filing Date: 2016-11-15
CPC Classification: H02K

Claim Text:
1. A motor, comprising: a stationary unit; and a rotary unit rotatably supported to rotate about a center axis extending in an axial direction; wherein the stationary unit includes a ring-shaped core-back, a plurality of teeth, a resin insulator, a coil, a metal terminal, a resin protection member, and a casing; the core-back is arranged to surround the center axis; the teeth protrude radially inward or radially outward from the core-back; the insulator includes a first insulating portion, a second insulating portion, a third insulating portion, and a protrusion portion; the first insulating portion is arranged to cover axial opposite end surfaces and circumferential opposite surfaces of the teeth; the second insulating portion is arranged to cover at least a portion of an upper surface of the core-back; the third insulating portion is arranged to cover at least a portion of a lower surface of the core-back; and the protrusion portion protrudes upward from the second insulating portion; the coil is defined by a lead wire wound around the teeth through the first insulating portion; the metal terminal is attached to the protrusion portion and provided with an upper end portion positioned axially above the protrusion portion, and the metal terminal is electrically connected to an end portion of the lead wire; the protection member is arranged to cover a portion of the metal terminal; the casing is a molded resin article in which the core-back, the teeth, the insulator, the coil, the metal terminal, and the protection member are arranged as inserts; the protection member includes a cover section through which the metal terminal penetrates in the axial direction; the upper end portion of the metal terminal is positioned axially above an upper surface of the cover section; the protection member or the insulator includes a post section positioned below the cover section and arranged to axially extend in a portion of a surrounding of the metal terminal; a connection space within which a connection point of the metal terminal and the lead wire is disposed is provided between the cover section and the insulator and at the side of the metal terminal from the post section; the post section includes an opening; the lead wire is arranged to reach the connection space through the opening; and the opening is at least larger in size than a cross section of the lead wire.