Dynamo-electric machine having winding phase groups of series-connected windings connected in parallel

A dynamo-electric machine comprising:

• an armature including an armature core provided with a plurality of slots extending in an axial direction of the armature core and disposed alongside each other in a circumferential direction of the armature core, and armature winding mounted in the slots provided on the armature core,
• wherein two slots per pole per phase are formed in the armature core;
• wherein the armature winding comprises two alternating windings, each formed by connecting winding phase groups for each phase into an alternating connection;
• wherein each of the winding phase groups for each phases is formed by connecting in parallel two windings each having n-turns, where n is a natural number, the windings being constructed by winding a strand of wire in the armature core so as to dispose 2n in-slot-received portions of the strand of wire within each of the slots alongside each other in the slot-depth direction and so as to connect each in-slot-received portion in a first slot to other in-slot-received portions occupying addresses, in the slots individually separated from the first slot by a predetermined number of slots, differing in the slot-depth direction from that which is occupied by the in-slot-received portion in the first slot, at the outside of the slots;
• wherein n-rows of coil ends, each coil end being formed by connecting the in-slot-received portion in the first slots to the other in-slot-received portion occupying addresses, in the slots individually separated from the first slot by the predetermined number of slots, differing in the slot-depth direction from that which is occupied by the in-slot-received portion in the first slot, are formed on at least one of the axial ends of the armature core, and the protrusion, in the axial direction, of the n-rows of the coil ends decreases gradually toward the outside in the radial direction of the armature core;
• and
• wherein the individual alternating current outputs from the two alternating windings are rectified by first and second rectifiers, respectively, and outputted by being combined with each other.

A dynamo-electric machine comprising:

• an armature including an armature core provided with a plurality of slots extending in an axial direction of the armature core and disposed alongside each other in a circumferential direction of the armature core, and armature winding mounted in the slots provided on the armature core,
• wherein two slots per pole per phase are formed in the armature core;
• wherein the armature winding comprises two alternating windings, each formed by connecting winding phase groups for each phase into a alternating connection;
• wherein each of the winding phase groups for each phases is formed by connecting in parallel two windings each having n-turns and including a lap winding and a wave winding connected in series, where n is a natural number, the windings being constructed by winding a strand of wire in the armature core so as to dispose 2n in-slot-received portions of the strand of wire within each of the slots alongside each other in the slot-depth direction and so as to connect each in-slot-received portion in a first slots to other in-slot-received portions occupying addresses, in the slots individually separated from the first slot by a predetermined number of slots, differing in the slot-depth direction from that which is occupied by the in-slot-received portion in the first slot, at the outside of the slots;
• and
• wherein the individual alternating current outputs from the two alternating windings are rectified by first and second rectifiers, respectively, and outputted by being combined with each other.