| 摘要 |
<p>PURPOSE: A mobile tool equipped with a secondary battery is provided to improve efficiency of a secondary battery by using a member for cooling a secondary battery. CONSTITUTION: A mobile tool comprises a rotating unit, a driving-power transmitting element, a battery pack(100), and a cooling part. The rotating unit is a wheel of a mobile tool. The rotating unit is a motor driven with the battery pack. The rotating part is a pedal transmitted the driving force by a user. The driving-power transmitting element changes the rotational motion of the rotating unit into linear motion. The cooling part is transmitted power by the driving-power transmitting element and cools the battery pack.</p> |
