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US 11,081,913 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.
Claims17
An electric motor comprising:
- a stator comprising a plurality of stator teeth;
- a first rotor;
- a second rotor;
- the first rotor and the stator operatively configured to rotate relative to each other about a motor axis;
- the second rotor and the stator operatively configured to rotate relative to each other about the motor axis;
- the plurality of stator teeth positioned between the first rotor and the second rotor;
- a first gap between the first rotor and the plurality of stator teeth;
- a second gap between the second rotor and the plurality of stator teeth;
- 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 first rotor and the second edge of the folded tape at the rotor fold aligned adjacent the second rotor;
- and
- the motor operationally configured to conduct a magnetic flux from the first rotor across the first gap into the first edge of the folded tape at the rotor fold and to conduct a magnetic flux from the second rotor across the second gap into the second edge of the folded tape at the rotor fold.
11 more elements
Dependencies are inferred from the claim text.