COOLING STRUCTURE FOR ELECTRICITY STORAGE DEVICE

摘要

A cooling structure for an electricity storage device has a secondary battery (10) producing heat; a DC-DC converter (20) producing a quantity of heat different from that of the secondary battery (10); a gas discharge path (30n) in which air having cooled the secondary battery (10) producing a relatively small quantity of heat flows and that is communicated to the outside of a vehicle; a gas discharge path (35n) in which air having cooled the DC-DC converter (20) producing a relatively large quantity of heat flows and that merges into the gas discharge path (30n); and a circulation path (40) connected to the gas discharge path (30n) on the airflow upstream of the position (38) at which the gas discharge path (35n) merges. A rise in temperature in a vehicle compartment and a reduction in the pressure in the vehicle compartment are effectively suppressed at the same time.