Torque tunnel halbach array electric machine

Abstract

Disclosed are various embodiments for Torque Tunnel Halbach Array electric machines having a rotor comprising a plurality of rotor assemblies configured to form a magnetic torque tunnel having at least a first magnetic pole tunnel segment and a second magnetic pole tunnel segment, each of the rotor assemblies having a plurality of flux shaping Halbach Arrays configured to focus the Flux Density Distribution in the magnetic torque tunnel and a stator having a plurality of coils configured to form a coil winding assembly, the coil winding assembly positioned within the magnetic torque tunnel, such that at least one of the plurality of coils is surrounded by the first magnetic pole tunnel segment or the second magnetic pole tunnel segment, alternatively the rotor may be the coil winding assembly and the stator may be the magnetic torque tunnel.

1 . A system for an electric machine comprising:
 a stator comprising a set of coil assemblies arranged radially about a motor axis and defining:
 an inner radial facet; 
 an outer radial facet; 
 a first axial facet; and 
 a second axial facet opposite the first axial facet; 
   a rotor comprising:
 a set of inner radial magnetic elements arranged in a radial pattern about the inner radial facet of the stator and defining a first flux density distribution focused toward the inner radial facet; 
 a set of outer radial magnetic elements arranged in a radial pattern about the outer radial facet of the stator and defining a second flux density distribution focused toward the outer radial facet; 
 a first set of axial magnetic elements arranged in a radial pattern about the first axial facet of the stator and defining a third flux density distribution focused toward the first axial facet; and 
 a second set of axial magnetic elements arranged in a radial pattern about the second axial facet of the stator and defining a fourth flux density distribution focused toward the second axial facet; and 
   a housing:
 coupled to the rotor; and 
 comprising a shaft coaxial with the motor axis. 
   
     
     
         2 . The system of  claim 1 , further comprising a controller configured to drive current through the set of coil assemblies to generate a toroidal magnetic field tunnel configured to sequentially and magnetically couple the set of inner radial magnetic elements, the set of outer radial magnetic elements, the first set of axial magnetic elements, and the second set of axial magnetic elements.