Assemblies and Methods for Cooling Electric Machines
First Claim
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1. A cooling assembly for an electric machine, comprising:
- a stator core comprising a plurality of laminations and having;
a first end;
a second end; and
a bore extending from the first end to the second end of the stator core and configured to accommodate at least a portion of a rotor, the bore characterized by a longitudinal axis;
where at least some laminations in the plurality of laminations comprise at least one opening positioned at least between the first end and the second end of the stator core; and
at least one bar disposed in the at least one opening, where the at least one bar is not hollow and is electrically insulated from the at least some laminations.
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Accused Products
Abstract
Cooling assemblies and methods, including, for example, at least one bar (e.g., electrically insulated and/or thermally conductive bar(s)), members (e.g., i-beams, rectangular members, and the like), stator laminations, rotor laminations, and/or combinations thereof, such as those configured to cool electric machines (e.g., electric motors and generators).
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Citations
20 Claims
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1. A cooling assembly for an electric machine, comprising:
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a stator core comprising a plurality of laminations and having; a first end; a second end; and a bore extending from the first end to the second end of the stator core and configured to accommodate at least a portion of a rotor, the bore characterized by a longitudinal axis; where at least some laminations in the plurality of laminations comprise at least one opening positioned at least between the first end and the second end of the stator core; and at least one bar disposed in the at least one opening, where the at least one bar is not hollow and is electrically insulated from the at least some laminations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A cooling assembly for an electric machine, comprising:
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a rotor core comprising a plurality of laminations and having; a first end; a second end; a bore extending from the first end to the second end of the rotor core and configured to accommodate at least a portion of a rotor shaft, the bore characterized by a longitudinal axis; an end plate disposed at the first end; and an end plate disposed at the second end; where at least some laminations in the plurality of laminations comprise at least one opening positioned at least between the first end and the second end of the rotor core; and at least one bar disposed in the at least one opening, where the at least one bar is electrically insulated from the at least some laminations. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of manufacturing a cooling assembly for an electric machine, comprising:
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cutting at least one opening in at least some of a plurality of stator laminations such that when the at least some stator laminations are assembled, the at least one opening is positioned at least between a first end and a second end of a stator core; assembling the plurality of stator laminations to form at least a portion of a stator core; and disposing at least one bar in the at least one opening, where the at least one bar is not hollow and is electrically insulated from the at least some laminations. - View Dependent Claims (18, 19, 20)
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Specification