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An electrical apparatus that is cooled via natural convection includes an electrical component, a vertical heat dissipation surface in thermal communication with the electrical component, and a diverter extending from the heat dissipation surface. The diverter disrupts vertical airflow over the heat

An electrical apparatus that is cooled via natural convection includes an electrical component, a vertical heat dissipation surface in thermal communication with the electrical component, and a diverter extending from the heat dissipation surface. The diverter disrupts vertical airflow over the heat dissipation surface.

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The invention claimed is: 1. A refrigerated apparatus comprising: a refrigerated compartment; a heat sink disposed in the refrigerated compartment, the heat sink including a heat dissipation surface having a vertical dimension greater than a horizontal dimension; an LED mounted to and in thermal co

The invention claimed is: 1. A refrigerated apparatus comprising: a refrigerated compartment; a heat sink disposed in the refrigerated compartment, the heat sink including a heat dissipation surface having a vertical dimension greater than a horizontal dimension; an LED mounted to and in thermal communication with the heat sink; and a diverter extending from the heat dissipation surface, the diverter being positioned to disrupt vertical airflow over the heat dissipation surface and being shaped to generate turbulent airflow outside of a boundary layer of vertical airflow over the heat dissipation surface generated by natural convection. 2. The apparatus of claim 1, wherein the vertical dimension is at least about 10 times a first horizontal dimension of the heat dissipation surface. 3. The apparatus of claim 2, wherein the vertical dimension is at least about 10 times a second horizontal dimension of the heat dissipation surface. 4. The apparatus of claim 1, wherein the diverter extends substantially horizontally on the heat dissipation surface. 5. The apparatus of claim 1, wherein the diverter comprises a ramp. 6. The apparatus of claim 5, wherein the ramp comprises a curved upstream surface. 7. The apparatus of claim 1, wherein the diverter comprises a thin planar member or a thin curved member. 8. The apparatus of claim 1, further comprising a plurality of diverters extending from the heat dissipation surface. 9. The apparatus of claim 1, wherein the heat dissipation surface includes a plurality of designated diverter mounting locations. 10. The apparatus of claim 9, wherein the diverter mounting locations comprise openings in the heat dissipation surface. 11. The apparatus of claim 9, wherein the diverter is selectively removable from the diverter mounting location. 12. The apparatus of claim 1, further comprising a plurality of long, vertical heat dissipation surfaces in thermal communication with the LED, wherein at least some of the heat dissipation surfaces have diverters extending therefrom. 13. A method for cooling an electrical component using natural convection, the method comprising: attaching an electrical component to a vertically oriented heat sink including a heat dissipation surface having a vertical dimension greater than a horizontal dimension; introducing power into the electrical component such that the electrical component heats the heat sink generating upward laminar flow via natural convection over the heat dissipating surface; and absent forced convection, disrupting the upward laminar flow over the heat dissipating surface to generate turbulent airflow outside of a boundary layer of the upward laminar flow. 14. The method of claim 13, wherein the step of disrupting the upward laminar flow further comprises passing air through a diverter in thermal communication with the heat sink and directing air that is spaced a predetermined distance from the heat sink toward the heat sink and directing air that is adjacent the heat sink away from the heat sink. 15. A heat sink for an electrical component comprising: a heat sink body adapted to have an associated electrical component mounted to the heat sink body; and a diverter in thermal communication with the heat sink body, wherein the diverter includes a first curved surface shaped to direct airflow toward the heat sink body and a second curved surface shaped to direct airflow away from the heat sink body. 16. The heat sink of claim 15, wherein the first curved surface and the second curved surface emanate from a common line. 17. The heat sink of claim 15, wherein the diverter includes first and second side walls attached to the first curved surface and the second curved surface. 18. The heat sink of claim 17, wherein the diverter includes a third side wall connected to and generally perpendicular with the first and second side walls.