Charming appearance and behaviour vibration energy harvester based on polycylindser wake flow excitation

The utility model relates to a charming appearance and behaviour vibration energy harvester, especially a charming appearance and behaviour vibration energy harvester based on polycylindser wake flow excitation are applicable to need such as sensor acquireed the energy from external environment low -power consumption electronic equipment, the device comprises external frame post, central cylinder, piezoelectric transducer, contact spring, frame rod, the utility model discloses utilizing wind in the environment to carry and acting on the external frame post, the air current is at external frame post nappe separation, produces the swirl that comes off in turn at external frame post afterbody, and central cylinder is at frame post wake flow effect oscillation generation down, and the cylindrical vibration drives the deformation of arc sheetmetal, and the piezoelectric element who pastes on the arc sheetmetal takes place deformation and polarizes external output voltage, the utility model discloses an external fr