Electric motor having a stator
AssigneeA. O. Smith Corporation
InventorsDan M. Ionel, Stephen J. Dellinger, Alan E. Lesak
Life of this patent
Estimating the term…
Abstract
An electric motor stator including a yoke having a plurality of yoke laminations. A body portion is formed as part of each of the plurality of yoke laminations. A first tooth is continuous with the body portion and is formed as part of at least a portion of the plurality of yoke laminations. The first tooth defines a first tooth profile. A first tooth attachment portion is formed as part of the plurality of yoke laminations. A second tooth includes a plurality of tooth laminations. Each tooth lamination of the second tooth includes a second tooth attachment portion and defines a second tooth profile that differs from the first tooth profile. The second tooth attachment portion is engaged with the first tooth attachment portion.
Claims14
A stator comprising:
- a yoke comprising a plurality of yoke laminations;
- a body portion formed as part of each of the plurality of yoke laminations;
- a first tooth continuous with the body portion and formed as part of at least a portion of the plurality of yoke laminations, the first tooth comprising a coil-receiving portion comprising a first coil-receiving width and a free end comprising a first free end width, and wherein the first free end width is no greater than the first coil-receiving width;
- a first tooth attachment portion formed as part of the plurality of yoke laminations;
- a second tooth comprising a plurality of tooth laminations, each tooth lamination of the second tooth comprising a second tooth attachment portion and defining a second tooth profile that differs from the first tooth profile, the second tooth attachment portion engaged with the first tooth attachment portion, the second tooth comprising a second free end comprising a second free end width and a second coil-receiving portion comprising a second coil-receiving width, the second free end width being greater than the second coil-receiving width, the first tooth and the second tooth cooperating to define a slot therebetween;
- and
- a coil disposed only around the second tooth.
A stator comprising:
- a yoke comprising a plurality of yoke laminations;
- a body portion formed as part of each of the plurality of yoke laminations;
- a first tooth continuous with the body portion and formed as part of at least a portion of the plurality of yoke laminations, the first tooth comprising a coil-receiving portion comprising a first coil-receiving width and a free end comprising a first free end width, and wherein the first free end width is no greater than the first coil-receiving width;
- a first tooth attachment portion formed as part of the plurality of yoke laminations;
- a second tooth comprising a plurality of tooth laminations, each tooth lamination of the second tooth comprising a second tooth attachment portion and defining a second tooth profile that differs from the first tooth profile, the second tooth attachment portion engaged with the first tooth attachment portion, the second tooth comprising a second free end comprising a second free end width and a second coil-receiving portion comprising a second coil-receiving width, the second free end width being greater than the second coil-receiving width;
- and
- a liner comprising an outer wall that comprises alternating high spots and low spots that contact the first tooth and the second tooth, and an inner wall that includes alternating second high spots and second low spots.
Dependencies are inferred from the claim text.