Twin coil claw pole rotor with segmented stator winding for electrical machine
A dynamoelectric machine including a stator with a stator winding composed of segmented conductors and representative of a first phase stator winding of multi-phase stator windings inserted in a plurality of slots defining the stator. A rotor is rotatable within the stator and is composed of more than two flux carrying segments, each segment having P/2 claw poles, wherein P is an even number.
1 . A dynamoelectric machine comprising:
a stator including a stator winding composed of segmented conductors, said stator winding representative of a first phase stator winding of multi-phase stator windings inserted in a plurality of slots defining said stator; and
a rotor rotatable within said stator, a rotor composed of more than two flux carrying segments, each segment having P/2 claw poles, wherein P is an even number.
2 . The machine of claim 1 , wherein a coil winding is disposed intermediate each of said more than two flux carrying segments.
3 . The machine of claim 2 , wherein each coil winding is energized providing a first magnetic polarity on outbound claw poles defining said rotor and a second polarity opposite said first polarity on claw poles intermediate said outbound claw poles.
4 . The machine of claim 1 , wherein permanent magnets are disposed between said each segment to enhance at least one of output and efficiency.
5 . The machine of claim 1 , wherein said first phase stator winding includes a conductor segmented into a first segment and a second segment, said first segment is inserted in a first slot of said plurality of slots and said second segment inserted in a second slot of said plurality of slots, said first and second slots having being spaced 180 electrical degrees apart.
6 . The machine of claim 5 , wherein said first and second segments extend from a first side of said stator to a second side defining said stator, said first segment returns to said first side through said second slot, said second segment returns to said first side through a third slot.
7 . The machine of claim 6 , wherein said first and second segments form respective loops on said second side before returning to said first side.
8 . The machine of claim 6 , wherein said third slot is three slots from said second slot and six slots from said first slot with said second slot therebetween.
9 . The machine of claim 6 , wherein said first and second segments combine after extending to said first side from said second side to form a single conductor.
10 . The machine of claim 1 , wherein said multi-phase stator windings include three-phase stator windings having said first phase stator winding, a second and a third phase stator winding.
11 . The machine of claim 10 , wherein each of said plurality of slots is occupied by a respective segmented conductor of one of said first, second, and third phase stator windings.
12 . The machine of claim 11 , wherein each slot is filled with a plurality of segments from a single phase conductor.
13 . An alternating current (AC) generator for a motor vehicle comprising:
a stator including a stator winding composed of segmented conductors, said stator winding representative of a first phase stator winding of multi-phase stator windings inserted in a plurality of slots defining said stator; and
a field rotor rotatable within said stator, said rotor including more than two flux carrying segments, each segment having P/2 claw poles, wherein P is an even number.
14 . The generator of claim 13 , wherein a coil winding is disposed intermediate each of said more than two flux carrying segments.
15 . The generator of claim 14 , wherein each coil winding is energized providing a first magnetic polarity on outbound claw poles defining said rotor and a second polarity opposite said first polarity on claw poles intermediate said outbound claw poles.
16 . The generator of claim 13 , wherein permanent magnets are disposed between said each segment to enhance at least one of output and efficiency.
17 . The generator of claim 13 , wherein said first phase stator winding includes a conductor segmented into a first segment and a second segment, said first segment is inserted in a first slot of said plurality of slots and said second segment inserted in a second slot of said plurality of slots, said first and second slots being spaced 180 electrical degrees apart.
18 . The generator of claim 17 , wherein said first and second segments extend from a first side of said stator to a second side defining said stator, said first segment returns to said first side through said second slot, said second segment returns to said first side through a third slot.
19 . The generator of claim 18 , wherein said first and second segments form respective loops on said second side before returning to said first side.
20 . The generator of claim 18 , wherein said third slot is three slots from said second slot and six slots from said first slot with said second slot therebetween.
21 . The generator of claim 18 , wherein said first and second segments combine after extending to said first side from said second side to form a single conductor.
22 . The generator of claim 13 , wherein said multi-phase stator windings include three-phase stator windings having said first phase stator winding, a second and a third phase stator winding.
23 . The generator of claim 22 , wherein each of said plurality of slots is occupied by a respective segmented conductor of one of said first, second, and third phase stator windings.
24 . The machine of claim 23 , wherein each slot is filled with a plurality of segments from a single phase conductor.