Patent ID: 7541701
Filing Date: 2009-06-02
Classification: H02K

Abstract:
1. A motor assembly comprising: a stator including a set of windings; a rotor mounted on a rotating shaft and operable to rotate with respect to the stator; a first end frame coupled to the stator and rotatably supporting the shaft; a second end frame coupled to the stator and rotatably supporting the shaft, the second end frame including at least one air outlet aperture; an air shroud surrounding the stator between the first end frame and the second end frame, the air shroud cooperating with the stator to form at least one air passage, and cooperating with the first end frame to form at least one air inlet aperture, the at least one air inlet aperture, the at least one air passage and the at least one air outlet aperture being in fluid communication with one another; and a fan mounted on the rotating shaft, the fan operable to generate an air flow of ambient air through the at least one air inlet aperture, the at least one air passage and the at least one air outlet aperture.