Patent ID: 8704395

Claim:
A wave activated power generator comprising: a case 10 sealingly accommodating a power generation unit 40 which generates power by generating induced electromotive force in a coil 48 through relative movement of a permanent magnet 46 and the coil 48 ; a floating body 50 enclosing a lower portion of the case 10 while exposing an upper portion of the case 10 ; a pile 20 installed on a sea bed; and a chain 30 secured at opposite ends thereof to the floating body 50 and the pile 20 , respectively, wherein the floating body 50 has a tumbler shape with a mass 51 inserted into a lower portion of the floating body 50 to have a center of gravity placed a center of a bottom of the floating body 50 , the power generation unit 40 is provided with an elastic spring supporting a weight member 47 in the power generation unit 40 and having an undamped natural frequency corresponding to an average frequency of waves, the pile 20 comprises a tubular portion 22 having an open bottom and a closed ceiling 21 , a link 23 disposed at a center of the ceiling 21 to be coupled to a lower end of the chain 30 , and a through-hole 24 formed in the ceiling 21 , the chain 30 is inserted into a flexible tube 60 and extends in a longitudinal direction of the tube 60 , with the opposite ends of the chain 30 exposed from the tube 60 , the tube 60 is provided therein with a flexible suction pipe 70 extending in the longitudinal direction of the tube 60 , the flexible suction pipe 70 being connected at a lower end thereof to the through-hole 24 of the pile 20 through a lower end of the tube 60 to communicate with the pipe 20 and being secured at an upper end thereof to a side wall of the floating body 50 through an upper end of the tube 60 , and the tube 60 is connected at the upper end thereof to a lower end of an air supply pipe 90 to communicate with the air supply pipe 90 , an upper end of which is connected to the side wall of the floating body 50 , the air supply pipe 90 and the suction pipe 70 being detachably coupled at the upper ends thereof to caps 91 , 71 to be sealed by the caps 91 , 71 , respectively.