Rotor structure for electric machine assembly

An electric machine assembly for a vehicle is provided. The electric machine is in operational communication with a traction battery and includes a stator core defining a cavity and a rotor disposed within the cavity having an inner region defined by sets of triangle-shaped holes tessellated about r...

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Bibliographische Detailangaben
Hauptverfasser:	Ma, Zhichun, Xu, Wei, Liu, Shuzhen, Wang, Jiyao
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION INSTRUMENTATION OR DASHBOARDS FOR VEHICLES MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	An electric machine assembly for a vehicle is provided. The electric machine is in operational communication with a traction battery and includes a stator core defining a cavity and a rotor disposed within the cavity having an inner region defined by sets of triangle-shaped holes tessellated about respective central regions to form a truss structure such that the holes of the truss structure, during operational rotation, do not influence magnetic flux paths generated by magnets of the rotor. The rotor may have a strain energy value less than or equal to 16,100 Joules. The truss structure may include pairs of symmetrical portions each including segments arranged with adjacent rotor portions to define the triangle-shaped holes.