Disclosed in the present invention is a dust and water accumulation prevention and shielding-free self-cleaning photovoltaic assembly having support, comprising a solar panel; an aluminum alloy frame is fixedly connected to the edge of the solar panel, either side of the aluminum alloy frame is designed to have a track groove, a sliding block is provided in either of the track grooves, a cleaning member is fixedly connected to either of the sliding blocks, a solar panel clamp installation space is provided at either side of the aluminum alloy frame, a transverse rod is fixedly connected to one end of either of the track grooves, an electric motor is fixedly mounted on an outer surface of one end of the transverse rod, either end of the transverse rod is provided with a support, and either of the supports is rotatably connected to a through shaft by means of a bearing provided at the top end of the support, either end of the through shaft is provided with a transmission groove, and the middle of a backboard is provided with a support rod. The present invention has the function of remotely controlling the cleaning members to perform automatic cleaning, avoiding the problems of the power generation efficiency being reduced due to accumulation of excessive dust and the service life of the solar panel being affected due to water accumulation, which are easily incurred during long-term use.
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