| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling plate which has sufficient structural strength for resisting a stress added to a cooling liquid passage in relation to a lamination and loses little pressure. SOLUTION: A cooling liquid passage 27 of a separator 20 comprises a lead-in part 271 which is connected with a cooling liquid supply opening 21, a lead-out part 272 which is connected with a cooling liquid exhaust opening 24, and a middle part 273 which connects the lead-in part 271 with the lead-out part 272. Two first ribs 40 are formed over the full length of the middle part 273. An independent second rib 50, which is different from the first ribs 40, is formed at almost the center portion of the lead-in part 271. A clearance is made between the counterposing sides of the first ribs 40 of the second rib and the counterposing side of the second rib 50 of the first ribs 40. |
