A solar protection device Stirling engine heat sink, protection method

The present invention discloses a protective device for a solar absorber of a Stirling engine, the Stirling engine comprises a heat sink, the heat sink having a daylight opening (2); said protective means comprises at least one impervious light cover plate (3), the cover plate (3) and the precursor of the heat sink (16) rotatably connected to the cover plate (3) to flip the light blocking opening (2) a first position, or to flip open the light opening (2) a second position. With this structure, when it is in an emergency situation in a first position by turning the cover plate, to achieve the purpose of blocking daylight opening, cutting condenser converge light on the absorber tube, the absorber tube serves to protect , greatly improving the life of the heat sink. The present invention also discloses a method for protecting a solar absorber of the Stirling engine.