Patent attributes
A battery pack includes: a battery; a battery case including: a battery tray which contains the battery; and a battery cover which is mounted on the battery tray; a cooling unit provided in an end part of the battery case in a first direction that is a longitudinal direction of the battery case, and supplying a cooling air into the battery case; an air flow passage provided above the battery and extending along the first direction, in a center part in a second direction perpendicular to the first direction inside the battery case, one end of the air flow passage connected to the cooling unit; and an electric cable arranged between the air flow passage and the battery cover, along the first direction, and supplying an electric power of the battery to a motor.
