Wire-winding machine and a wire-winding method for making windings of a rotary electromechanical device

A wire-winding method for forming coils on an iron core of a rotary electromechanical device, wherein the iron core is constructed of a core member which is formed by joining a plurality of core segments, each of the core segments has a yoke portion and a magnetic pole tooth which is projectingly formed on an inside surface of the yoke portion, each of the coils is formed around the magnetic pole tooth, and the core member is formed by joining both ends of the individual yoke portions by means of connectors which serve as points of bending, said wire-winding method comprising the steps of:

• bending the core member in such a way that the magnetic pole teeth are positioned on the outside or inside of a bent structure;
• and
• forming the coils on one core segment while holding the core segments in positions where the core segments adjacent to said one core segment do not project in the direction of its magnetic pole tooth beyond a boundary surface including the inside surface of the yoke portion of said one core segment.

A wire-winding machine for forming coils on an iron core of a rotary electromechanical device, wherein the iron core is constructed of a core member which is formed by joining a plurality of core segments, each of the core segments has a yoke portion and a magnetic pole tooth which is projectingly formed on an inside surface of the yoke portion, each of the coils is formed around the magnetic pole tooth, and the core member is formed by joining both ends of the individual yoke portions by means of connectors which serve as points of bending, said wire-winding machine comprising:

• a wire feeder which is constructed to wind the coils on the magnetic pole teeth as wire outlet ends of the wire feeder turn around the individual magnetic pole teeth;
• and
• a core member positioner which causes the core member to bend at the connectors in such a way that the magnetic pole teeth are positioned on the outside of a bent structure, and holds the core member in positions where the core segments adjacent to each core segment which is currently a subject of wire-winding operation performed by the wire feeder do not project in the direction of its magnetic pole tooth beyond a boundary surface including the inside surface of the yoke portion of each core segment which is currently a subject of the wire-winding operation during the wire-winding operation.

A wire-winding method for forming coils on an iron core of a rotary electromechanical device, wherein the iron core is constructed of a core member which is formed by joining a plurality of core segments, each of the core segments has a yoke portion and a magnetic pole tooth which is projectingly formed on an inside surface of the yoke portion, each of the coils is formed around the magnetic pole tooth, and the core member is formed by joining both ends of the individual yoke portions by means of connectors which serve as points of bending, said wire-winding method comprising the steps of:

• bending the core member in such a way that the magnetic pole teeth are positioned on the outside of a bent structure;
• and
• forming the coils on one core segment while holding the core segments in positions where the core segments adjacent to said one core segment do not project in the direction of its magnetic pole tooth beyond a boundary surface including the inside surface of the yoke portion of said one core segment.