초록 ▼

A motor assembly comprises a first end frame, a second end frame including at least one air outlet aperture, an air shroud surrounding a 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

A motor assembly comprises a first end frame, a second end frame including at least one air outlet aperture, an air shroud surrounding a 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 motor assembly also comprises 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.

대표청구항 ▼

What is claimed is: 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 r

What is claimed is: 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. 2. The motor assembly as claimed in claim 1, wherein the shroud includes at least one baffle protruding from an inner surface of the shroud, the at least one baffle enclosed within the at least one air passage. 3. The motor assembly as claimed in claim 1, further comprising an adapter for connecting the motor assembly to a pump, the adapter coupled to the second end frame, wherein the fan is placed substantially between the second end frame and the adapter. 4. The motor assembly as claimed in claim 1, wherein the first end frame cooperates with the stator to form therebetween a first inner space for enclosing at least a portion of the windings, the first inner space restricted from fluid communication with the at least one air passage. 5. The motor assembly as claimed in claim 1, wherein the second end frame includes an annular tenon engaging the stator to form a second inner space therebetween, and a ring surrounding the tenon and defining therebetween the at least one air outlet aperture. 6. The motor assembly as claimed in claim 5, wherein the air outlet aperture is arcuate, and wherein the second end frame includes three additional arcuate air outlet apertures defined between the annular tenon and the ring. 7. The motor assembly as claimed in claim 1, wherein the shroud cooperates with the stator to form two air passages, the air passages located on opposite sides of the stator. 8. The motor assembly as claimed in claim 1, further comprising a pump wherein the second end frame is connected to the pump, the shaft is operable to drive the pump, and the fan is mounted on the shaft between the stator and the pump, the fan operable to generate the air flow by pulling ambient air through the motor assembly such that the air flow enters the motor assembly through the at least one air inlet aperture, flows through the at least one air passage, and exits the motor assembly through the at least one air outlet aperture. 9. The motor assembly as claimed in claim 8, further comprising an adapter between the second end frame and the pump, the adapter operable to couple the second end frame to the pump. 10. The motor assembly as claimed in claim 9, wherein the second end frame includes a plurality of legs with respective leg coupling portions, the legs extending axially in the direction away from the first end frame, and wherein the adapter includes, for each of the legs, a respective adapter coupling portion, each of the leg coupling portions and the associated adapter coupling portion having therethrough apertures for receiving an associated bolt for coupling the second end frame and the adapter to the pump. 11. 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; an air shroud mounted between the first end frame and the second end frame, the air shroud enclosing the stator; and a housing coupled to the air shroud and defining an inner space containing an electronic module operable to control the motor assembly, the housing including a cap that snaps onto the housing and is operable to permanently seal the inner space, a first wall with a downwardly facing shoulder, and a second wall with a protrusion, the second wall spaced from the first wall, wherein the cap includes a foot engaging the shoulder and an aperture receiving the protrusion. 12. The motor assembly as claimed in claim 11, wherein the housing includes an open bottom, and wherein the air shroud at least partially closes the open bottom. 13. The motor assembly as claimed in claim 12, wherein the housing includes a coupling portion with a coupling aperture therethough such that the coupling aperture aligns with a receiving aperture of the shroud and a screw is received in the coupling aperture and receiving aperture. 14. The motor assembly as claimed in claim 11, wherein the first end frame cooperates with the stator to form therebetween a second inner space for enclosing at least a portion of the windings, the second inner space restricted from fluid communication with ambient air. 15. The motor assembly as claimed in claim 14, further comprising at least one wiring element extending from the electric module to the second inner space. 16. The motor assembly as claimed in claim 15, further comprising a grommet between the housing and the first end frame, wherein the grommet at least partially closes the inner space of the housing, and wherein the grommet includes an aperture for allowing therethrough the at least one wiring element. 17. 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 rotatably supporting the shaft and coupled to the stator to form a first compartment enclosing at least one portion of the set of windings; and a thermostat coupled to the first end frame such that the thermostat is enclosed in the first compartment in thermal relationship with the at least one portion of the set of windings, wherein the thermostat includes a casing with at least one open end, and wherein the open end is coupled to the set of windings. 18. The motor assembly as claimed in claim 17, wherein the first end frame includes an opening, and wherein the thermostat extends through the opening. 19. The motor assembly as claimed in claim 18, further comprising a housing with an inner space containing an electronic module operable to control the motor assembly, wherein the first compartment is connected to the inner space via at least one wiring element. 20. The motor assembly as claimed in claim 19, further comprising a grommet between the first end frame and the housing, wherein the grommet to at least partially close the inner space of the housing, and wherein the grommet includes an aperture for allowing therethrough at least one wiring element connected to the electronic module.