Cooling system for electronic components and led lamp having the same

摘要

The present invention is directed to a cooling system (1) for electronic components (4). The cooling system (1) comprises means (7) for producing cyclic air pressure fluctuations, wherein the electronic components (4) are distanced from the pressure producing means (7). In the vicinity of the electronic components (4) are situated means (5), preferably restrictions like holes, which are affected by the cyclic air pressure fluctuations, and which produce cyclic air jets (6). The air jets (6) affect the surface of the electronic component (4), and since the air jets (6) originate directly in the vicinity of the electronic components (4), an efficient heat transfer is affected. Preferably, the pressure producing means (7) actuate a pressure Pc inside a chamber (2), and turbulent air jets (6) are produced through holes (5) of a substrate (3), onto which electronic components (4) are mounted.

主权项

1. 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).