Patent ID: 7678494

Claim:
A cooling structure for a secondary battery adapted to cool a secondary battery in a battery pack by cooling air drawn in from a cabin of a vehicle, and discharge the air into said cabin via an exhaust duct, wherein said battery pack is arranged between a driver seat and a front passenger seat, said exhaust duct is provided to be led out from a front side of said battery pack to descend towards a floor side, and extend towards a rear side of the vehicle between said driver seat and said front passenger seat, running between a bottommost face of said battery pack and the floor of said vehicle, said battery pack comprises a first battery pack including a first battery assembly, and a second battery pack disposed above the first battery pack and including a second battery assembly, a first exhaust duct is connected to said first battery pack located at a lower side, a second exhaust duct is connected to said second battery pack located at an upper side, a first cooling fan is attached to said first exhaust duct at a region where said first exhaust duct is led out from the front side of said first battery pack, a direction of exhaust flow output from said first cooling fan crosses an extending direction of said exhaust duct at an angle greater than 90 degrees, a second cooling fan is attached to said second exhaust duct at a region where said second exhaust duct is led out from the front side of said second battery pack, and a direction of exhaust flow output from said second cooling fan is substantially parallel to an extending direction of said second exhaust duct.