Cooling module for an electronically controlled engine
AssigneeSiemens Canada Limited
InventorsPeter A. Kershaw, Marek Horski
Life of this patent
Estimating the term…
Abstract
A cooling module 10 of short axial length includes a fan 18 having a plurality of blades 16. A shroud structure 12 is spaced from and generally adjacent to the blades 16. A brushless electric motor 22 rotates the blades 16. The motor 22 includes a heat sink structure 24 coupled to the shroud structure 12 and defines a base of the motor 22. A shaft 32 is fixed to the heat sink structure 24. A rotor 34 is mounted for rotation with respect to the shaft 32. The fan 18 is coupled to the rotor 34. Magnets 48 are fixed in relation to the rotor 34. A lamination core 56 is fixed to the heat sink structure 24. A winding is wound about the lamination core 56 and is operatively associated with the magnets 48.
Claims21
A cooling module comprising:
- a fan having a plurality of blades;
- a shroud structure spaced from and generally adjacent to said blades;
- and
- a brushless electric motor for rotating said fan, said electric motor comprising:
- a heat sink structure coupled to said shroud structure and defining a base of said motor;
- a shaft fixed to said heat sink structure;
- a rotor mounted for rotation with respect to said shaft, said fan being coupled to said rotor;
- magnets fixed in relation to said rotor so as to rotate with said rotor;
- a lamination core fixed to said heat sink structure;
- and
- a winding wound about said lamination core and operatively associated with said magnets.
A cooling module comprising:
- a fan having a fan hub and a plurality of blades extending from said fan hub;
- a shroud structure spaced from and generally adjacent to said blades;
- and
- a brushless electric motor for rotating said fan, said electric motor comprising:
- a heat sink structure having first and second opposing surfaces, said first surface including a boss extending therefrom, said boss having an aperture therein, said boss being adjacent to said shroud structure, said heat sink structure defining a base of said motor;
- a shaft fixed with respect to said aperture of said boss of said heat sink structure;
- a rotor mounted for rotation with respect to said shaft, said fan hub being coupled to said rotor;
- magnets fixed in relation to said rotor so as to rotate with said rotor;
- a lamination core fixed to at least one boss extending from said second surface of said heat sink structure;
- and
- a winding wound about said lamination core and operatively associated with said magnets.
A method of providing a cooling module comprising:
- providing a fan having a fan hub and a plurality of blades extending from said fan hub;
- providing a shroud structure spaced from and generally adjacent to said blades;
- and
- providing a brushless electric motor for rotating said fan, said electric motor comprising:
- a heat sink structure;
- a shaft fixed to said heat sink structure;
- a rotor mounted for rotation with respect to said shaft, magnets fixed in relation to said rotor so as to rotate with said rotor;
- a lamination core fixed to said heat sink structure;
- and
- a winding wound about said lamination core and operatively associated with said magnets;
- coupling said heat sink structure to said shroud structure;
- and
- coupling said fan hub to said rotor.
Dependencies are inferred from the claim text.