초록 ▼

A housing for coupling to a motor having an axis of rotation is provided. The housing includes an end cap having an outer surface and an inner surface. The housing also includes a plurality of first heat fins coupled to the outer surface. Each first heat fin of the plurality of first heat fins inclu

A housing for coupling to a motor having an axis of rotation is provided. The housing includes an end cap having an outer surface and an inner surface. The housing also includes a plurality of first heat fins coupled to the outer surface. Each first heat fin of the plurality of first heat fins includes a first portion extending radially from the axis of rotation. In addition, the housing includes a second portion coupled to first portion and extending parallel to the axis of rotation. The housing further includes a second heat fin coupled to the second portion.

대표청구항 ▼

1. A housing for enclosing electronics of a motor having an axis of rotation, said housing comprising: an end cap having a diameter and comprising: a shaft bore wall defining a shaft bore surrounding the axis of rotation;an outer surface and an inner surface;a plurality of first heat fins coupled to

1. A housing for enclosing electronics of a motor having an axis of rotation, said housing comprising: an end cap having a diameter and comprising: a shaft bore wall defining a shaft bore surrounding the axis of rotation;an outer surface and an inner surface;a plurality of first heat fins coupled to said outer surface, said plurality of first heat fins oriented perpendicular to the axis of rotation in a radial direction, each first heat fin of said plurality of first heat fins comprising: a first portion comprising a radially inner end and a radially outer end, wherein said first portion extends radially in a sinusoidal shape between said radially inner end and said radially outer end; anda second portion coupled to said first portion, said second portion extending radially beyond the end cap diameter, said second portion further extending parallel to the axis of rotation, said second portion comprising a first end and a second end; anda second heat fin comprising a second inner surface and a second outer surface opposite said second inner surface, said second inner surface and said second outer surface extending parallel to the axis of rotation, said second inner surface coupled to said second end, said second heat fin extending from said second end in the direction of the axis of rotation, wherein said second heat fin comprises a heat shield and extends circumferentially around at least a portion of said end cap. 2. The housing of claim 1, wherein said first portion comprises a first shape and said second portion comprises a second shape that is different than said first shape. 3. The housing of claim 1, wherein said second portion comprises a first end and a second end, said first end has a smaller width than said second end. 4. The housing of claim 1, wherein said first portion comprises a first side and a second side which define a channel there between. 5. The housing of claim 1, wherein a pair of adjacent first heat fins of said plurality of first heat fins define a channel there between. 6. The housing of claim 1, wherein said second heat fin is coupled to each second portion of said plurality of first heat fins. 7. The housing of claim 1, further comprising a third heat fin coupled to said inner surface. 8. The housing of claim 1, further comprising a third heat fin coupled to said inner surface, said third heat fin comprising a plurality of projections. 9. The housing of claim 1, further comprising a third heat fin coupled to said inner surface, said third heat fin comprising a plurality of first projections and a plurality of second projections, said plurality of first projections comprising a plurality of substantially square projections, said plurality of second projections having an elongated rectangular shape different than said plurality of first projections. 10. The housing of claim 1, wherein said plurality of first heat fins defines a channel between adjacent first portions of adjacent first heat fins, wherein said channel includes a plurality of alternating converging and diverging portions extending from said radially inner end to said radially outer end. 11. An electrical machine having an axis of rotation, said electrical machine comprising: a motor comprising a stator, a rotor coupled to said stator and a motor shaft coupled to said rotor along the axis of rotation;a housing coupled to and enclosing said motor; andan end cap having a diameter and comprising: a shaft bore wall defining a shaft bore surrounding the axis of rotation;an outer surface and an inner surface;a plurality of first heat fins coupled to said outer surface, said plurality of first heat fins oriented perpendicular to the axis of rotation in a radial direction, each first heat fin of said plurality of first heat fins comprising: a first portion comprising a radially inner end and a radially outer end, wherein said first portion extends radially in a sinusoidal shape between said radially inner end and said radially outer end; anda second portion coupled to said first portion, said second portion extending radially beyond the end cap diameter, said second portion further extending parallel to the axis of rotation, said second portion comprising a first end, a second end, and a first radially outer surface; anda second heat fin comprising a second inner surface and a second outer surface opposite said second inner surface, said second inner surface and said second outer surface extending parallel to the axis of rotation, said second inner surface coupled to said second end, said second heat fin extending from said second end in the direction of the axis of rotation, wherein said second heat fin extends circumferentially around at least a portion of said end cap, and wherein said second outer surface is radially flush with said first radially outer surface of said second portion. 12. The electrical machine of claim 11, wherein said first portion comprises a first shape and said second portion comprises a second shape that is different than said first shape. 13. The electrical machine of claim 11, wherein said second portion comprises a first end and a second end, said first end has a smaller width than said second end. 14. The electrical machine of claim 11, wherein said second portion comprises a first end and a second end and said second heat fin is coupled to said second end. 15. The electrical machine of claim 11, further comprising a third heat fin coupled to said inner surface, said third heat fin comprising a third shape that is different than at least one of said first shape and said second shape. 16. The electrical machine of claim 11, further comprising a third heat fin coupled to said inner surface, said third heat fin comprising a plurality of first projections and a plurality of second projections that include an elongated rectangular shape different than said plurality of first projections, said plurality of first projections comprising a plurality of substantially square projections. 17. The electrical machine of claim 11, wherein said plurality of first heat fins defines a channel between adjacent first portions of adjacent first heat fins, wherein said channel includes a plurality of alternating converging and diverging portions extending from said radially inner end to said radially outer end. 18. A method of assembling an electrical machine, said method comprising: coupling a plurality of first heat fins of an end cap to an outer surface of the end cap of the electrical machine, the end cap having an end cap diameter and comprising an axis of rotation, the plurality of first heat fins oriented perpendicular to the axis of rotation in a radial direction, each first heat fin of the plurality of first heat fins comprising: a first portion comprising a radially inner end and a radially outer end, wherein the first portion extends radially in a sinusoidal shape between the radially inner end and the radially outer end; anda second portion coupled to the first portion and having a second shape that is different than the first shape, the second portion extending radially beyond the end cap diameter, the second portion further extending parallel to the axis of rotation, the second portion comprising a first end and a second end; andcoupling a second heat fin of the end cap to the second end, the second heat fin includes a second inner surface opposite a second outer surface, the second inner surface and the second outer surface extending parallel to the axis of rotation, the second inner surface coupled to the second end, the second heat fin including a heat shield and extending from the second end in the direction of the axis of rotation beyond the second end of a plurality of the plurality of first heat fins, wherein the second heat fin extends circumferentially around at least a portion of the end cap. 19. The method of claim 18, further comprising coupling a third heat fin to an inner surface of the end cap. 20. A housing for enclosing electronics of a motor having an axis of rotation, said housing comprising: an end cap having an end cap diameter and comprising: a shaft bore wall defining a shaft bore surrounding the axis of rotation;an outer surface and an inner surface; anda plurality of sets of heat fins, wherein each set of heat fins comprises: a plurality of first heat fins coupled to said outer surface, said plurality of first heat fins oriented perpendicular to the axis of rotation in a radial direction, each first heat fin of said plurality of first heat fins comprising: a first portion comprising a first end and a second end, wherein said first portion extends radially in a sinusoidal shape between said first end and said second end; anda second portion coupled to said first portion and extending parallel to the axis of rotation and beyond said end cap diameter, said second portion comprising a first end and a second end, said second portion having a divergent shape; anda second heat fin comprising a second inner surface and a second outer surface opposite said second inner surface, said second inner surface and said second outer surface extending parallel to the axis of rotation, said second inner surface coupled to said second end, said second heat fin extending from said second end in the direction of the axis of rotation, wherein said second heat fin extends circumferentially around at least a portion of said end cap. 21. The housing of claim 20, wherein said plurality of first heat fins defines a channel between adjacent first portions of adjacent first heat fins, wherein said channel includes a plurality of alternating converging and diverging portions extending from said radially inner end to said radially outer end.