Electric machine rotor
AssigneeFord Global Technologies, LLC
InventorsJacob Krizan, Matthew Schmitt
Life of this patent
Estimating the term…
Abstract
An electric machine rotor includes a core, magnets, and a resin. The core defines pockets. The core defines notches extending from outer ends of each pocket. The core defines cavities each extending between inner ends of and connecting two of the pockets. The magnets are disposed within each of the pockets. The resin is disposed within each pocket and each cavity. The resin encases each magnet and secures each magnet to at least one of the plates. The gaskets are each disposed along an outer end of each pocket. The gaskets are configured to retain the resin within the pockets and the cavities. The gaskets are also configured to isolate the resin from the notches.
Claims20
An electric machine rotor comprising:
- a plurality of plates stacked along an axis, each of the plates defining
- pairs of pockets,
- notches extending from outer ends of each pocket to outer peripheries of the plates, and
- bridging cavities extending between and connecting inner ends of each pocket within each of the pairs of pockets;
- magnets disposed within each of the pockets;
- couplers disposed within each of the bridging cavities, and securing outer portions of each plate to a base portion of each plate, wherein each outer portion of each plate is separated from the base portion of each plate by an opening collectively formed by one of the pairs of pockets, two of the notches, and one of the bridging cavities, and wherein the couplers are dovetailed and engage corresponding dovetailed notches defined by the outer portions and base portion of each plate to secure the outer portions to a corresponding base portion:
- a molding compound d within each pocket and each bridging cavity, wherein the molding compound (i) encases each magnet and each coupler and (ii) secures each magnet and each coupler to at least one of the plates;
- and
- gaskets each disposed along an outer end of each pocket, wherein the gaskets are configured to (i) retain the molding compound within the pockets and the bridging cavities and (ii) isolate the molding compound from the notches.
An electric machine rotor comprising:
- a core defining (i) pockets, (ii) notches extending from outer ends of each pocket, and (iii) cavities each extending between inner ends of and connecting two of the pockets;
- magnets disposed within each of the pockets,
- a resin disposed v in each pocket and each cavity, wherein the resin (i) encases each magnet and (ii) secures each magnet to the core;
- and
- gaskets each disposed along an outer end of each pocket, wherein the gaskets are configured to (i) retain the resin within the pockets and the cavities and (ii) isolate the resin from the notches, wherein the gaskets have cross-sections that engage outer ends and lateral sides of the magnets.
An electric machine rotor comprising:
- stacked plates defining (i) pockets, (ii) notches extending from outer ends of each pocket to outer peripheries of the plates, and (iii) linking cavities each extending between inner ends of and connecting two of the pockets:
- magnets disposed within each of the pockets;
- connectors disposed within each of the linking cavities and securing outer portions of the plates to base portions of the plates
- a resin disposed within each pocket and each cavity, wherein the resin (i) encases each magnet and connector and (i) secures each magnet and connector to at least one of the plates;
- and
- gaskets each disposed between one of the pockets and one of the notches, wherein the gaskets are configured to (i) retain the resin within the pockets and the cavities and (ii) isolate the resin from the notches, wherein the plates define slots configured to receive the gaskets.
Dependencies are inferred from the claim text.