Battery pack structure

An battery pack structure comprising:

• a battery module including a plurality of battery cells;
• a pack case in which a plurality of the battery modules are housed;
• a chamber that serves as an air flow passage to the battery module inside the pack case;
• a cooling duct that is arranged outside the pack case and serves as an air flow passage;
• and
• a connector that connects the cooling duct and the pack case with each other, the connector communicating the chamber and the cooling duct with each other as an air flow passage,
• wherein the connector includes an first opening, a second opening, a first sealing surface, and a second sealing surface,
• the first opening is connected with an inlet part of the chamber in a state of being sealed by a first sealing member,
• the second opening is connected with an outlet part of the cooling duct in a state of being sealed by a second sealing member,
• the first sealing surface is formed in a peripheral part of the first opening, the first sealing surface facing a chamber inlet surface through the first sealing member, the first sealing surface being one of a tube-shaped surface and a plane, the chamber inlet surface being formed in a peripheral part of the inlet part, and the chamber inlet surface being one of a tube-shaped surface and a plane, and
• the second sealing surface is formed in a peripheral part of the second opening, the second sealing surface facing a duct outlet surface through the second sealing member, the second sealing surface being one of a tube-shaped surface and a plane, the duct outlet surface being formed in a peripheral part of the outlet part, and the duct outlet surface being one of a tube-shaped surface and a plane.