| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack in which a secondary battery can be highly efficiently cooled.SOLUTION: A battery pack 30 includes a counter weight 31 functioning as a heat absorption part. The counter weight 31 is provided with a square shape battery 51. A mounting plate 38 formed of a thermal insulation material is fixed to a notch 32 formed in the counter weight 31. A housing case 61 in which control equipment 65 is stored is mounted on the mounding plate 38. The mounting plate 38 is disposed between the control equipment 65 and the counter weight 31. |
