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US 10,320,246 B2Granted
Metal ribbon stator and motor comprising same
AssigneeMoog Inc.
InventorDavid Calley
Life of this patent
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Abstract
A stator made from a ribbon of metal having multiple layers of slit metal, and motors made therefrom are described. A ribbon having multiple layers of metal is formed into a stator such as by flattening or pleating the ribbon to form each pole of a stator having a plurality of stator teeth, or poles. The stator formed from the metal ribbon may be configured into any suitable type of motor, such as an axial transverse flu motor. A magnetic flu return may also be made out of metal ribbon.
Claims26
An electric motor comprising:
- a stator comprising a plurality of stator teeth;
- a rotor;
- the rotor and the stator operatively configured to rotate relative to each other about a motor axis;
- a gap between the rotor and the stator teeth;
- a magnetic flux return;
- the plurality of stator teeth comprising folded tape;
- the folded tape comprising a plurality of ribbon layers of magnetic flux conducting material having a width between a first edge and a second edge;
- the folded tape comprising a rotor fold and a return fold;
- the first edge of the folded tape at the rotor fold aligned adjacent the rotor and the first edge of the folded tape at the return fold aligned adjacent the magnetic flux return;
- and
- wherein the motor is operationally configured to conduct a magnetic flux from the rotor across the gap into the first edge of the folded tape at the rotor fold and back out of the first edge of the folded tape into the magnetic flux return at the return fold.
8 more elements
Dependencies are inferred from the claim text.