| 摘要 |
PURPOSE:To provide optimum temp. rise and cooling for cells by supplying much high-temp. cooling air to cells at the ends rather than cells at the central part in starting the cells and by supplying much low-temp. cooling air to the cells at the central part rather than the ends during cell operation, respectively. CONSTITUTION:In starting cells, cooling air is heated to up to a predetermined temp. and a purge gas is supplied in a balloon 10 through a rubber tube 12 to expand the balloon 10. Paths for supplying the cooling air mainly to cells 1b at the central part side out of cooling air paths in a manifold 6 are then blocked. High-temp. cooling air supplied from a cooling air-supplying tube 8 is concentratedly supplied to cells 1a at the ends. When cell temp. has reached nearby cell operating temp., the temp. of the cooling air is dropped down to a predetermined temp. and the purge gas in the balloon 10 is sucked to contract the balloon 10. The blocked cooling air paths at the central part in the manifold 6 are then secured to concentratedly supply low-temp. cooling air to the cells 1b at the central part side. |
