Distributed photovoltaic controller

The utility model relates to the technical field of photovoltaic energy, and discloses a distributed photovoltaic controller which comprises a controller body, a back plate, a fixing block, a first sliding groove, a second sliding groove, fixing strips, a limiting plate, a dust removal box, a filter screen, a motor and a fan, and the top end and the bottom end of the back face of the controller body are fixedly provided with the fixing strips. Fixing blocks are arranged at the four corners of the back plate, first sliding grooves are formed in the top end and the bottom end of the front face of the back plate, second sliding grooves are formed in the middle end of the inner wall of the top face and the middle end of the inner wall of the bottom face of each first sliding groove, and limiting plates are arranged at the top end and the bottom end of the side face of the controller body. According to the distributed photovoltaic controller, a fixing strip is aligned with a first sliding groove to push a controll