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US 6,954,010 B2Granted
Lamination cooling system
AssigneeAeroVironment, Inc.
InventorsWally E. Rippel, Daryl M. Kobayashi
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AssigneeAeroVironment, Inc.
InventorsWally E. Rippel, Daryl M. Kobayashi
Estimating the term…
An electric motor, transformer or inductor having a lamination cooling system including a stack of laminations, each defining a plurality of apertures at least partially coincident with apertures of adjacent laminations. The apertures define a plurality of cooling-fluid passageways through the lamination stack, and gaps between the adjacent laminations are sealed to prevent a liquid cooling fluid in the passageways from escaping between the laminations. The gaps are sealed by injecting a heat-cured sealant into the passageways, expelling excess sealant, and heat-curing the lamination stack. The apertures of each lamination can be coincident with the same-sized apertures of adjacent laminations to form straight passageways, or they can vary in size, shape and/or position to form non-axial passageways, angled passageways, bidirectional passageways, and manifold sections of passageways that connect a plurality of different passageway sections. Manifold members adjoin opposite ends of the lamination stack, and each is configured with one or more cavities to act as a manifold to adjacent passageway ends. Complex manifold arrangements can create bidirectional flow in a variety of patterns.
A lamination cooling system comprising a lamination stack including a plurality of laminations, each lamination defining an aperture, wherein the aperture of each lamination is at least partially coincident with the apertures of adjacent laminations such that the apertures define a cooling-fluid passageway through the lamination stack, and wherein gaps between the adjacent laminations are sealed to prevent a liquid cooling fluid in the passageway from exiting the lamination stack between adjacent laminations wherein the laminations are planar, and wherein the apertures of some adjacent laminations are only partially coincident such that the passageway extends in one or more directions that are not normal to the plane of the laminations.
A lamination cooling system comprising a lamination stack including a plurality of laminations, each lamination defining an aperture, wherein the aperture of each lamination is at least partially coincident with the apertures of adjacent laminations such that the apertures define a first cooling-fluid passageway through the lamination stack, and wherein gaps between the adjacent laminations are sealed to prevent a liquid cooling fluid in the passageway from exiting the lamination stack between adjacent laminations, wherein:
A lamination cooling system comprising a lamination stack including a plurality of laminations, each lamination defining an aperture, wherein the aperture of each lamination is at least partially coincident with the apertures of adjacent laminations such that the apertures define a first cooling-fluid passageway through the lamination stack, and wherein gaps between the adjacent laminations are sealed to prevent a liquid cooling fluid in the passageway from exiting the lamination stack between adjacent laminations, wherein each lamination defines a second aperture, wherein the second aperture of each lamination is at least partially coincident with the second apertures of adjacent laminations such that the second apertures define a second cooling-fluid passageway through the lamination stack, and wherein gaps between the adjacent laminations are sealed to prevent a liquid cooling fluid in the second passageway from exiting the lamination stack between adjacent laminations.
Dependencies are inferred from the claim text.