Patent ID: 7633187

Claim:
A stator for a reciprocating motor, comprising: an annular coil winding in which a coil is wound plural times; an insulation band formed in a circular band shape surrounding an outer circumferential surface of the coil winding; an annular bobbin coupled to remaining outer surfaces of the coil winding so as to enclose the coil winding together with the insulation band, wherein the bobbin comprises two separate parts that are coupled to respective opposite side surfaces of the coil winding; a plurality of core blocks coupled on the bobbin in a circumferential direction; and an inner core disposed within the bobbin, with a certain interval between an outer circumferential surface of the inner core and an inner circumferential surface of the bobbin, wherein the insulation band extends continuously in a longitudinal direction around the outer circumferential surface of the coil winding, and wherein a width of the insulation band that is transverse to the longitudinal direction is greater than that of the outer circumferential surface of the coil winding such that opposite end portions of the insulation band cover a portion of the opposite side surfaces of the coil winding, and wherein the annular coil winding is an annular solid comprising a bonding material that forms the insulation band positioned at an outermost layer of the coil winding and melted and then solidified within gaps between the plural windings so as to fix the annular shape of the coil winding prior to covering the plural windings with the insulation band and the two separate pieces of the bobbin.