| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of the conventional fuel cell stacks in which the number of components is increased to obtain a structure for suppressing vibration of a laminate.SOLUTION: A fuel cell stack FS comprises: a laminate 1 formed by lamination of a plurality of rectangular plate-like unit cells FC; end plates 2 disposed on both end surfaces in the laminating direction of the cells of the laminate 1; and a pair of fastening plates 3 which, when four surfaces of the laminate 1 parallel to the laminating direction of the cells are referred to as first to fourth outer circumferential surfaces in the circumferential direction, are disposed on the second and the fourth outer circumferential surfaces. The both end plates 2 and each fastening plate 3 are coupled, and at least one of the pair of fastening plates 3 is provided with a rib 3B which is parallel to the laminating direction of the cells and presses the laminate 1. By this configuration, spring elements are mounted in the displacement direction of the laminate 1, and thereby the resonance frequency of the laminate 1 is increased and the resistance against vibration is enhanced without increasing the number of components. |
