| 摘要 |
<p>In the present invention, disclosed is a piezoelectric energy harvester which includes a first vibration member which includes a first elastic element which is fixed to a structure and a first weight element which is installed on the first elastic element, a second vibration member which includes a second elastic element whose one end is connected to the first elastic element and a second weight element which is installed on the other end of the second elastic element, and a piezoelectric device which is attached on the second elastic element of the second vibration member and generates electric energy according to the deformation of the second elastic element. According to the present invention, the first elastic element includes a pair of first extension parts which are extended from a fixture in parallel by interposing the second elastic element, a pair of second extension parts which is bent and extended from each end of the first extension part in the facing direction of the pair of the first extension parts, a pair of third extension parts which are bent and extended from each end of the second extension part in the location direction of the structure, and a base which provides the installation space of the first weight element by combining each end of the third extension part and is connected to the second elastic element.</p> |
