Motor having stator with generally planar windings
AssigneeDeere & Company
InventorsRonnie Dean Stahlhut, Jim Milton Shoemaker
Life of this patent
Estimating the term…
Abstract
An electric motor features liquid cooling capability. A rotor and a secondary rotor are coupled to a shaft for rotation therewith. The rotor comprises a first annular member and magnets secured to the first annular member. The secondary rotor comprises a second annular member and secondary magnets secured to the second annular member. A stator is spaced axially apart from the rotor and the secondary rotor. The stator comprises a plurality of generally planar windings secured to a magnetic core and a secondary planar windings secured to a secondary magnetic core. The magnetic core has at least one cooling channel.
Claims15
An electric motor comprising:
- a shaft,
- a rotor coupled to the shaft for rotation therewith, the rotor comprising a first annular member and magnets secured to the first annular member;
- a secondary rotor coupled to the shaft for rotation therewith, the secondary rotor comprising a second annular member and secondary magnets secured to the second annular member;
- a stator spaced axially apart from the rotor and the secondary rotor, the stator comprising a plurality of generally planar windings secured to a first outer side of a magnetic core and a secondary planar windings secured to a second opposite outer side of a secondary magnetic core, the magnetic core having at least one liquid cooling channel sealed at an inner side of the magnetic cores, wherein the at least one liquid cooling channel is spaced apart axially from the generally planar windings.
An electric motor comprising:
- a shaft,
- a rotor coupled to the shaft for rotation therewith, the rotor comprising a first annular member and magnets secured to the first annular member;
- a secondary rotor coupled to the shaft for rotation therewith, the secondary rotor comprising a second annular member and secondary magnets secured to the second annular member;
- a stator spaced axially apart from the rotor and the secondary rotor, the stator comprising a plurality of generally planar windings secured to a first outer side of a magnetic core and a secondary planar windings secured to a second opposite outer side of a secondary magnetic core, the magnetic core having at least one liquid cooling channel sealed at an inner side of the magnetic cores;
- and
- a sealing member, between the magnetic core and the secondary magnetic core, that provides a liquid-tight seal between the magnetic core and the secondary magnetic core.
Dependencies are inferred from the claim text.