Main field winding and connections for a dynamoelectric machine
First Claim
1. A precision wound rotor comprising:
- a magnetic core having a longitudinal axis and axially spaced core ends; and
a winding having a plurality of continuously connected turns of wire, with said turns of wire extending around the core in an axial direction and forming a plurality of end turns at the axially spaced core ends;
said winding further having at a one electrical end thereof an exciter lead portion, whereby the winding may be connected to a source of electrical power;
said exciter lead portion including a crossover section oriented in a direction generally mutually transverse to the axis and to the end turns, with said crossover section being disposed between the end turns and one of the core ends, the end turns thereby constraining the crossover section between the end turns and the one of the core ends.
0 Assignments
0 Petitions
Accused Products
Abstract
An improved rotor for a dynamoelectric machine which includes a rotor core of magnetizable material having a longitudinal axis and axially spaced core ends, winding end supports of electrically insulating material at the core ends, and a winding having a plurality of layers of continuously connected turns of wire and first and second exciter lead portions at electrically opposite ends of the winding. The first exciter lead portion includes a crossover section oriented generally transverse to the longitudinal axis and located at one of the core ends. The winding is oriented generally parallel to the longitudinal axis and extends around the core, over the crossover section of the first exciter lead portion of the winding, and over both winding end supports, forming a plurality of end turns at the core ends and thereby maintaining the core and the winding end supports fixed relative to each other and constraining the crossover section of the first exciter lead portion between the end turns and the winding end support. A slot and a recessed area are incorporated into the winding end support, with the slot allowing the crossover section of the first exciter lead portion of the winding to be conveniently routed between the end turns and the winding end support, and the recessed area providing constraint for the end turns, thereby preventing deformation of the end turns due to centrifugal forces incident with rotation of the rotor.
22 Citations
17 Claims
-
1. A precision wound rotor comprising:
-
a magnetic core having a longitudinal axis and axially spaced core ends; and a winding having a plurality of continuously connected turns of wire, with said turns of wire extending around the core in an axial direction and forming a plurality of end turns at the axially spaced core ends; said winding further having at a one electrical end thereof an exciter lead portion, whereby the winding may be connected to a source of electrical power; said exciter lead portion including a crossover section oriented in a direction generally mutually transverse to the axis and to the end turns, with said crossover section being disposed between the end turns and one of the core ends, the end turns thereby constraining the crossover section between the end turns and the one of the core ends.
-
-
2. A precision wound rotor comprising:
-
a magnetic core having a longitudinal axis and axially spaced core ends; a winding end support made of electrically insulating material at one of the core ends; and a winding having a plurality of continuously connected turns of wire, with said turns of wire extending around the core and over the winding end support in a generally axial direction, with said turns of wire forming a plurality of end turns extending transverse to the axis across the winding end support and constraining the winding end support against the one of the core ends; said winding further having at one electrical end thereof an exciter lead portion, whereby the winding may be connected to a source of electrical power; said exciter lead portion including a crossover section oriented in a direction generally mutually transverse to the axis and to the end turns, with said crossover section being disposed between the end turns and the winding end support, the end turns thereby constraining the crossover section between the end turns and the winding end support. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A precision wound rotor comprising:
-
a magnetic core having a longitudinal axis and axially spaced core ends; a winding end support made of electrically insulating material at one of the core ends; a winding having a plurality of continuously connected turns of wire, with said turns of wire extending around the core and over the winding end support in a generally axial direction with said turns of wire forming a plurality of end turns extending transverse to the axis across the winding end support and constraining the winding end support against the one of the core ends; said winding further having at one electrical end thereof an exciter lead portion terminating in a lug whereby the winding may be connected to a source of electrical power; said winding end support including in a surface thereof a groove and a relief for receipt respectively therein of the exciter lead portion and the lug, the groove and the relief thereby providing means by which the exciter lead portion and the lug may be at least partially recessed below the surface of the winding end support. - View Dependent Claims (14, 15, 16, 17)
-
Specification