A rotor includes a first rotor core and a second rotor core that are axially stacked; the first rotor core includes a first core body and a first teeth protruding from an outer circumferential surface of the first core body; the second rotor core includes a second core body and a second teeth protruding from an outer circumferential surface of the second core body; wherein each of the first teeth includes a first extension protruding axially in a first direction past a first surface of the first core body, and each of the second teeth includes a second extension protruding axially in a second direction opposite the first direction past a first surface of the second core body, wherein the first extension includes a first protrusion provided on a first inner circumferential surface of the first extension, wherein the second extension includes a second protrusion provided on a second inner circumferential surface of the second extension, wherein the first protrusion includes a third inner circumferential surface of the first protrusion, wherein the second protrusion includes a fourth inner circumferential surface of the second protrusion, the third inner circumferential surface of the first protrusion, spaced apart radially inward from the second inner circumferential surface of the second extension, the fourth inner circumferential surface of the second protrusion, spaced apart radially inward from the first inner circumferential surface of the first extension.
ROTOR AND MOTOR HAVING THE SAME
09.04.2020
Patent
Elektronische Ressource
Englisch