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US 2013/0278092 A1Published application
Stator cooling channel tolerant to localized blockage
AssigneeHamilton Sundstrand Corporation
InventorsJoseph Kenneth Coldwate, John M. Beck, Debabrata Pal
Life of this patent
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Abstract
A stator core of a motor or generator includes a stacked stator laminations that form a plurality of outwardly extending fins and a plurality of cooling channels between the fins. Each stator lamination includes a gap larger than a cooling channel. Each stator lamination is rotated relative to a previous stator lamination in the stack. The gaps of adjacent stator laminations overlap such to connect a cooling channel to adjacent cooling channels.
Claims17
A stator lamination comprising:
- a generally circular body;
- a plurality of teeth projecting inwardly from the body that provide a space to receive a winding;
- a plurality of fins projecting outwardly from the circular body and positioned in groups of equal spacing around an outer circumference of the circular body;
- wherein a cooling channel is defined between a first fin and a second adjacent fin within a group;
- and wherein adjacent groups of fins are separated by a gap having a width larger than a width of the cooling channel.
2 more elements
A stator core for use in a motor or generator comprising:
- a plurality of stacked stator laminations forming a plurality of outwardly extending fins and a plurality of cooling channels positioned between the fins;
- wherein each stator lamination includes at least one gap larger than a cooling channel;
- and
- wherein each stator lamination is rotated relative to a previous stator lamination in the stack, such that a gap of a first stator lamination overlaps a gap of a second, previous stator lamination, thereby connecting a cooling channel to adjacent cooling channels.
1 more element
A stator core comprising:
- a plurality of stacked stator laminations rotated relative to one another and each including a plurality of outwardly extending fins and a plurality of cooling channels positioned between the fins;
- wherein a portion of at least one fin is removed such that adjacent cooling channels are connected.
Dependencies are inferred from the claim text.