Motor rotor bearing with temperature-activated stabilizers

摘要

A bearing assembly for use in an electric motor has a temperature-activated stabilizer to reduce vibration. The electric motor has a stator assembly and a rotor assembly and the bearing assembly includes a collar that has an outer diameter that is less than an inner diameter of the stator assembly. The bearing assembly further includes a temperature-activated stabilizer assembly that includes an extensible member positioned within the stabilizer recess. Under a first temperature the extensible member has a first volume and under a second temperature the extensible member expands to a second volume that is larger than the first volume. As the extensible member expands, the extensible member comes into contact with the stator assembly.

主权项

1. A bearing assembly for use in an electric motor having a stator assembly and a rotor assembly, the bearing assembly comprising:
a collar having an outer diameter less than an inner diameter of the stator assembly; and a stabilizer assembly, wherein the stabilizer assembly comprises:
a stabilizer recess formed within the collar; andan extensible member positioned within the stabilizer recess, wherein under a first temperature the extensible member has a first volume and wherein under a second temperature the extensible member expands to a second volume that is larger than the first volume.