A compact electrically driven linear actuator

Details A compact electrically driven linear actuator A compact electrically driven linear actuator

H - Electricity

02

K

H02K 7/06 (2006.01) F16H 25/20 (2006.01)

Patent

CA 2052078

A compact electrically driven linear actuator having an electric motor disposed in a housing. The electric motor has a cylindrically-shaped rotor assembly which is attached to and circumscribes a threaded spindle. A portion of the threaded spindle is received in an axial bore of a non-rotatable extendable arm. A nut attached to one end of the non-rotatable extendable arm is threadably received on the threaded spindle. Rotation of the threaded spindle by the electric motor linearly displaces the nut and the non-rotatable extendable arm along the length of the threaded spindle. In the preferred embodiment, the threaded spindle has a helical ball groove and the nut is a mating ball nut.

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