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US 7,923,875 B2Granted
Assembly for an electric machine
AssigneeA.O. Smith Corporation
InventorsJoseph A. Henry, A. Keith Pant
Life of this patent
Estimating the term…
Abstract
An electric machine includes a stator, a rotor positioned adjacent the stator and rotatable with respect to the stator, and a housing that at least partially surrounds the stator. An enclosure is coupled to the housing and includes a first compartment and a second compartment. A plurality of fins are positioned within the second compartment and a fan is coupled to the rotor and directs a flow of air through the second compartment.
Claims22
An electric machine, comprising:
- a stator;
- a rotor positioned adjacent the stator and rotatable with respect to the stator;
- a housing that at least partially surrounds the stator;
- an enclosure coupled to the housing and including a first compartment and a second compartment separate from the first compartment;
- a plurality of fins coupled to the enclosure and positioned within the second compartment;
- a fan coupled to the rotor and operable to direct a flow of air through the second compartment, wherein the first compartment includes a drive electronics space and a field wiring space;
- a first cover removably connected to the first compartment and cooperating with the enclosure to substantially enclose the field wiring space;
- and
- a second cover removably connected to the first compartment and cooperating with the enclosure to substantially enclose the drive electronics space.
6 more elements
An electric machine, comprising:
- a stator;
- a rotor positioned adjacent the stator and rotatable with respect to the stator;
- a housing that at least partially surrounds the stator;
- an enclosure coupled to the housing and including a base that at least partially defines a first compartment;
- an electromagnetic interference (EMI) shield disposed within the first compartment to divide the first compartment into a drive electronics space and a field wiring space;
- field wiring terminals disposed within the field wiring space;
- drive electronics disposed within the drive electronics space;
- a first cover removably connected to the enclosure adjacent the field wiring space and cooperating with the enclosure to substantially enclose the field wiring space;
- and
- a second cover removably connected to the enclosure adjacent the drive electronics space and cooperating with the enclosure to substantially enclose the drive electronics space.
7 more elements
An electric machine, comprising:
- a stator;
- a rotor positioned adjacent the stator and rotatable with respect to the stator;
- a housing that at least partially surrounds the stator;
- an enclosure coupled to the housing and including a first compartment, a second compartment and a third compartment;
- field wiring terminals disposed within the first compartment;
- drive electronics disposed within the second compartment;
- a plurality of fins positioned within the third compartment;
- a fan coupled to the rotor and operable to direct a flow of air through the third compartment;
- an electromagnetic interference (EMI) shield disposed between the first compartment and the second compartment;
- a first cover removably connected to the first compartment and cooperating with the enclosure to substantially enclose the field wiring terminals;
- and
- a second cover removably connected to the second compartment and cooperating with the enclosure to substantially enclose the drive electronics.
9 more elements
Dependencies are inferred from the claim text.