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US 12,732,043 B2Granted
Rotor for an external rotor motor
AssigneeBorgWarner Inc.
InventorsSilvio Koch, Thomas Ramb
Life of this patent
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Abstract
A rotor for an external rotor motor is described. The rotor has a back iron ring made of ferromagnetic steel, permanent magnets which are fastened to an inner side of the back iron ring, and a carrier made of non-ferromagnetic material which has a hub for a shaft and is fastened to the back iron ring. According to this disclosure, the carrier has a slot into which the back iron ring is inserted.
Claims15
A rotor for an external rotor motor, comprising:
- a back iron ring made of ferromagnetic steel;
- permanent magnets fixed to an inner side of the back iron ring;
- and
- a carrier made of material, which has a hub for a shaft and is attached to the back iron ring, wherein the carrier has a slot into which the back iron ring is inserted and wherein the carrier has outer protrusions which extend in the axial direction on the outside of the back iron ring.
1 more element
Dependencies are inferred from the claim text.