Cooling system for electronic components and led lamp having the same

A cooling system (1) for electronic components (4) comprising

• means (7) for producing cyclic air pressure fluctuations, wherein the electronic components (4) are distanced from the pressure producing means (7);
• converting means (5) for converting the cyclic air pressure fluctuations into cyclic air jets (6), wherein the converting means (5) are arranged in the vicinity of the electronic components (4), so that the cyclic air jets (6) are turbulent air streams and produced directly at the location of the electronic components (4) in order to increase the heat transfer at the surface of the electronic components (4), and
• wherein the converting means (5) comprises at least one opening in a range of 100 μm to 8 mm and wherein a distance between the electronic components (4) and the converting means (5) is less than 10 mm
• wherein the cooling system (1) further comprises
• a chamber (2), wherein the pressure producing means (7) are provided and produce a cyclic chamber air pressure (Pc), which is alternately higher and lower than the air pressure (Po) outside of the chamber (2);
• a substrate (3) constituting one side wall of the chamber (2), the electronic components (4) being attached to a surface of the substrate (3);
• wherein the substrate (3) is provided with at least one hole (5), which produces the cyclic air jets (6) due to the cyclic chamber air pressure (Pc).