Patent ID: 8399143

Claim:
A fuel cell stack including: a supporting mechanism 1 including a first stacking unit 110 including slots 15 defined therein and boards 114 for separating the slots 15 from one another, wherein the lowermost board 114 includes positioning apertures 16 in communication with the lowermost slot 15 ; a first gas-distributing unit 11 connected to the first stacking unit 110 and formed with an inlet pipe 111 and an outlet pipe 112 ; a second stacking unit 120 including slots 15 defined therein and boards 124 for separating the slots 15 thereof from one another, wherein the uppermost board 124 of the second stacking unit 120 includes positioning apertures 16 in communication with the uppermost slot 15 of the of the second stacking unit 120 , wherein the lowermost board 124 of the second stacking unit 120 includes positioning apertures 16 in communication with the lowermost slot 15 of the second stacking unit 120 ; a second gas-distributing unit 12 connected to the second stacking unit 120 and formed with an inlet pipe 121 and an outlet pipe 122 ; a third stacking unit 130 including slots 15 defined therein and boards 134 for separating the slots 15 thereof from one another, wherein the uppermost board 134 of the third stacking unit 130 includes positioning apertures 16 in communication with the uppermost slot 15 of the third stacking unit 130 ; a third gas-distributing unit 13 connected to the third stacking unit 130 and formed with an inlet pipe 111 and an outlet pipe 112 ; a first pressing and conducting unit 2 including: an upper plate 24 inserted in the lowermost slot 15 of the first stacking unit 110 ; a lower plate 26 inserted in the uppermost slot 15 of the second stacking unit 120 ; and conductive elastic elements 21 inserted through the positioning apertures defined in the lowermost board 114 of the first stacking unit 110 and the positioning apertures 16 defined in the uppermost board 124 of the second stacking unit 120 and compressed between the upper and lower plates 24 , 26 thereof; a second pressing and conducting unit 2 including: an upper plate 24 inserted in the lowermost slot 15 of the second stacking unit 120 ; a lower plate 26 inserted in the uppermost slot 15 of the third stacking unit 130 ; and conductive elastic elements 21 inserted through the positioning apertures 16 defined in the lowermost board 124 of the second stacking unit 120 and the positioning apertures 15 defined in the uppermost board 134 of the third stacking unit 130 and compressed between the upper and lower plates 24 , 26 thereof; and fuel cell units 3 each inserted in a related one of the slots 15 .