Cup-shaped heat dissipater having heat conductive rib and flow guide hole and applied in electric luminous body

A cup-shaped heat dissipater (100) for an electric luminous body (200), the electric luminous body being accommodated on an exterior surface of a bottom (120) of the cup-shaped heat dissipater (100), comprising:

• a heat conductive rib structure (310) extending upwardly from an interior surface of the bottom (120) of the cup-shaped heat dissipater (100), said heat conductive rib structure (310) further extending laterally to an upwardly-extending outer periphery (101) of the cup-shaped heat dissipater (100) and forming one of:
• (i) a grid, and (ii) at least one central structure with radially extending connecting sections,
• wherein at least one flow guide hole is formed in the cup-shaped heat dissipater (100) to permit passage of air into the cup-shaped heat dissipater (100) and past surfaces of the heat conductive rib structure (310) to an exterior of the cup-shaped heat dissipater (100), said at least one flow guide hole having at least one of the following configurations:
• (a) the at least one flow guide hole includes a plurality of flow guide holes (301) annularly arranged in the bottom (120) of the cup-shaped heat dissipater (100);
• (b) the at least one flow guide hole includes at least one flow guide hole (302) at a center of the bottom (120) of the cup-shaped heat dissipater (100);
• (c) the at least one flow guide hole includes at least one radially-extending flow guide hole (303) in the outer periphery (101) of the cup-shaped heat dissipater (100);
• (d) the at least one flow guide hole includes at least one inclined flow guide hole at an edge of the bottom surface 120 of the cup-shaped heat dissipater (100).