Heat dissipater with axial and radial air aperture and application device thereof

摘要

The present invention is characterized in that the heat generated by the electric illumination device cannot only be dissipated to the exterior through the surface of the heat dissipater, but also enabled to be further dissipated by the air flowing capable of assisting heat dissipation through the hot airflow in a heat dissipater (101) with axial and radial air aperture generating a hot ascent/cold descent effect for introducing airflow from an air inlet port formed near a light projection side to pass an axial tubular flowpath (102) then be discharged from a radial air outlet hole (107) formed near a connection side (104) of the heat dissipater (101) with axial and radial air aperture.

主权项

1. A heat dissipation assembly with axial and radial air apertures, comprising:
a heat dissipater (101) having axial and radial convection apertures, wherein: said heat dissipater is thermally conductive, hollow, and has a first axial end and a second axial end, said heat dissipater includes an axial flowpath (102) that extends centrally through the heat dissipater, said first axial end is a light projection side (103) having an axial end surface on which a plurality of electric luminous bodies (111) are installed, said second axial end is a connection side (104), at least one of said convection apertures that is adjacent said connection end (104) is a radial air outlet port (107), the light projection side (103) includes a plurality of said convection apertures that serve as air inlet ports (109 and 110), said air inlet ports including at least one central air inlet port (109) that extends through a center of the axial end surface of the light projection side (103), and at least one peripheral air inlet port (110) extending through a periphery of the axial end surface of the light projection side (103), wherein said plurality of electric luminous bodies (111) installed on said axial end surface are annularly provided in at least one circle around the at least one central air inlet port (109) between said central air inlet port (109) and said at least one peripheral air inlet port (110), a light-pervious lampshade (113) is respectively provided for each said circle of electric luminous bodies (111), at least one of the respectively-provided light-pervious lampshades (113) covering the at least one circle of electric luminous bodies between the at least one central air inlet port (109) and the at least one peripheral air inlet port (110), heat generated by the plurality of electric luminous bodies (111) and transferred to the airflow on two sides of each of the plurality of electric luminous bodies (111) and two sides of the respectively-provided light-pervious lampshade (113) covering the at least one circle of electric luminous bodies (111) causes convection and a resulting airflow, said airflow entering the heat dissipater through both the central and peripheral air inlet ports that extend through said axial end surface before passing through the axial flow path (102) and exiting the heat dissipater through the radial air outlet aperture (107), and the thermal energy of said airflow transferred from the heat at the two sides of the plurality of electric luminous bodies (111) and respectively-provided light-pervious lampshade (113) covering the at least one circle of electric luminous bodies (111) is discharged to an exterior of the heat dissipation assembly by heat transfer between internal and external heat dissipation surfaces (106,105), and by said airflow that enters the heat dissipater through both the central and peripheral air inlet ports, passes along said axial airflow path extending centrally through the heat dissipater, and exits the heat dissipater through said at least one radial air outlet port (107).