Patent ID: 7329959

Claim:
A micro power generator, comprising: a high-temperature heat source; a low-temperature heat source; an enclosed body containing a working substance therein, the enclosed body being deformable by means of a phase change of the working substance between a first shape wherein heat can be transferred from the high-temperature heat source and a second shape wherein heat can be transferred to the low-temperature heat source; a permanent magnet constituting the enclosed body, the permanent magnet being maintained in a first position when the enclosed body has the first shape and in a second position when the enclosed body has the second shape; and a wire in which an electric current is induced by a movement of the permanent magnet, wherein the enclosed body comprises a membrane movable in a manner of a bi-stable behavior, the membrane being liquid-tightly coupled to the permanent magnet, and wherein the micro power generator further comprises a supporting member coupled to a central portion of the membrane for supporting the enclosed body with respect to the high-temperature heat source.