Abstract: The present invention relates to an organic solar cell for a current-voltage test and a preparation method thereof. The disclosed organic solar cell for the current-voltage test comprises a substrate with a preset ITO pattern, wherein ITO on the substrate with the preset ITO pattern is used as the anode layer, and a hole transport layer, an active layer, an electron transport layer and a cathode layer are stacked successively to form a solar cell. A plurality of cell positions are designed on the substrate in the present invention. Each cell has an independent cathode test site and an anode test site. The distance between the test site of each cell and the cell is kept the same and the distance is short enough; and the cells are distributed evenly on the substrate discretely. The present invention has high substrate utilization rate, high data accuracy and good parallelism.

Abstract: A soundbox is disclosed in the disclosure, including a guiding pillar (1) and a guiding sleeve (3) within the soundbox, the guiding sleeve (3) being sleeved outside the guiding pillar (1), a shockproof sleeve (2) being sleeved outside the guiding pillar (1), the shockproof sleeve (2) being positioned between the outer wall surface of the guiding pillar (1) and the inner wall surface of the guiding sleeve (3), to fill the gap between the guiding pillar (1) and the guiding sleeve (3).

Abstract: A soundbox is disclosed in the embodiments of the disclosure, wherein the soundbox comprises a soundbox main body, an easily-easily-detachable guiding device is arranged on the soundbox main body (1), the easily-detachable guiding device comprises PCB plate fixed mount (3) and PCB plates (2), the PCB plates (2) are fixed in the inner side of the PCB plate fixed mount (3), and the PCB plates (2) are placed within the soundbox main body (1) by connecting the PCB plate fixed mount (3) and soundbox main body (1).