Stator for reciprocating motor and fabrication method thereof

A stator of a reciprocating motor comprising:

• a coil winding in which a coil is wound plural times, and fixed and insulated by a bonding material distributed between gaps of the wound coil;
• an insulation band formed in a circular band shape along an outer circumferential surface of the coil winding;
• an annular bobbin coupled to both side surfaces of the coil winding and covering the coil winding together with the insulation band;
• and
• a plurality of core blocks coupled on the bobbin in a circumferential direction.

A fabrication method of a stator for a reciprocating motor comprising:

• a first step of winding a coil around a jig;
• a second step of heating the wound coil and melting a bonding material positioned at an exterior thereof and an insulation band covering an outer circumferential surface of the coil winding, to thereby be coupled to the coil;
• a third step of inserting an annular bobbin so as to cover an inner circumference and both sides of the annular coil winding;
• a fourth step of forming lamination sheets with predetermined shapes;
• a fifth step of forming first and second core block halves by laminating the sheets formed in the fourth step;
• a sixth step of forming a core block by coupling the first and second core block halves to both side surfaces of the bobbin, respectively;
• and
• a seventh step of inserting an inner core so as to maintain a certain interval between the inner core and an inner circumferential surface which is formed by disposing the plurality of core blocks in a circumferential direction of the bobbin, and coupling a first cover and a second cover to outer sides of the core block, respectively, in an axial direction of the coil winding.