Photovoltaic module, frame, mounting pressing block and photovoltaic system

The utility model discloses a photovoltaic module, a frame, a mounting pressing block and a photovoltaic system. The photovoltaic system comprises a photovoltaic support, a plurality of photovoltaic modules and a plurality of mounting pressing blocks, the photovoltaic modules are arranged on the photovoltaic support side by side, each photovoltaic module comprises a battery laminated part and at least one frame arranged on the peripheral side of the battery laminated part, each frame comprises a surface B and a surface C connected with the surface B, each frame is provided with at least one clamping groove, and the clamping grooves are arranged in the clamping grooves. The clamping groove forms a first opening in the face C, the clamping groove forms a second opening in the face B, and the length of the second opening is larger than that of the first opening. The installation pressing block comprises a clamping part, an extension rod and a connecting rod, the clamping part is suitable for being clamped on the