The air cooled device which uses the piezoelectric fan and this piezoelectric fan

摘要

Topic When making the multiple blades oscillate with the piezo-electric device which is in common, amplitude variation of each blade is suppressed, the cooling effect and the piezoelectric fan which is superior in endurance are offered.SolutionsAs for piezoelectric fan 1, length direction one side the edge is locked is supported, the diaphragm it has with the piezo-electric device 3,3 where the inside and outside surface of 2 where length direction other edge side makes the free edge and the diaphragm is stuck at least all over. Bending section 2b of orthogonal direction is formed by the length direction intermediate section of diaphragm, 2 bends from the free edge of the diaphragm and the blade 2d which is split into multiple just specified length than the section S by forming slit 2e to position of free edge side, is formed. You bend piezo-electric device 3 and, from section 2b are stuck on fixed end side. Because of that, it can oscillate the blade efficiently with the piezo-electric device where variation of resonance frequency of each blade 2d becomes small, is in common. Choice figure Drawing 1