| 摘要 |
A magnetic fluid heat exchange LED lamp which is provided with a magnetic fluid radiator (2). The magnetic fluid radiator (2) is provided with a magnetic fluid (13) and a non-magnetic fluid (14). A controller (3) controls an electromagnetic coil (15) to generate a continuously alternating magnetic field so that the specific gravity of the magnetic fluid (13) changes continuously, and then the magnetic fluid (13) and the non-magnetic fluid (14) alternately exchange locations continuously. Using the magnetic fluid (13) and the non-magnetic fluid (14) as heat carriers, the heat of a PN junction (4) is continuously transferred from an aluminium substrate (11) to a radiating cover (12), thereby increasing the heat radiation efficiency of the LED lamp. |
