Core for a Primary of a Linear Induction Motor
AssigneeBombardier Transportation GmbH
InventorAlireza Safaee
Life of this patent
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Abstract
A core for a primary of a liner induction motor. The core includes a number of laminate sheets positioned between two walls of a frame. Each laminate sheet of the plurality of laminate sheets includes a number of heat dissipating projections positioned in a spaced apart manner along a longitudinal edge of the laminate sheet. The heat dissipating projections of each pair of adjacent laminate sheets are staggered from one another such that the core upper surface includes interleaving heat dissipating projections.
Claims20
1) A core for a primary of a linear induction motor, the core comprising a plurality of laminate sheets of a first type and a plurality of laminate sheets of a second type, wherein:
- a) each laminate sheet of the first type comprises a first set of coil-receiving slots and a first set of heat dissipating projections;
- and
- b) each laminate sheet of the second type comprises a second set of coil-receiving slots and a second set of heat dissipating projections;
- wherein the core is formed by stacking the plurality of laminate sheets of the first type and the plurality of laminate sheets of the second type in an alternating arrangement, wherein when the first set of coil-receiving slots and the second set of coil-receiving slots are aligned with one another, the first set of heat dissipating projections and the second set of heat dissipating projections are staggered with respect to each other along a longitudinal surface of the core.
17) A core for a primary of a linear induction motor, the core comprising a plurality of laminate sheets that are positioned in a stacked arrangement, wherein each of the laminate sheets comprises:
- a) a plurality of coil-receiving slots for receiving coil windings of the linear induction motor;
- b) a plurality of heat dissipating projections, wherein each heat dissipating projection has a base portion and a top portion, wherein the top portion has a surface area of between 6 mm2 and 16 mm2 and the base portion has a surface area that is at least double that of the top portion.
19) A core for a primary of a linear induction motor, the core comprising a plurality of laminate sheets positioned between two walls of a frame, each laminate sheet of the plurality of laminate sheets comprising a plurality of heat dissipating projections positioned in a spaced apart manner along a longitudinal edge of the laminate sheet, wherein the heat dissipating projections of each pair of adjacent laminate sheets are staggered from one another such that the core comprises an upper surface defined by a plurality of interleaving heat dissipating projections.
Dependencies are inferred from the claim text.