Underwater sealed cabin heat dissipation structure convenient to maintain

The utility model discloses an underwater sealed cabin heat dissipation structure convenient to maintain, and belongs to the technical field of underwater equipment, a heat dissipation structure is arranged in an underwater sealed cabin shell, the heat dissipation structure comprises a mounting frame, the mounting frame is fixed on an upper cover of an underwater sealed cabin, a power supply mounting plate is arranged at the lower part of the mounting frame, and a power supply is arranged on the power supply mounting plate. The power source mounting plate is in contact with the inner wall face of the underwater sealed cabin shell, the inner wall face and the upper cover are oppositely arranged in the axial direction of the underwater sealed cabin, and an adjusting structure for applying extrusion force to the power source mounting plate is arranged between the power source mounting plate and the mounting frame. The direction of the extrusion force is parallel to the axial direction of the underwater sealed ca