| 摘要 |
The present invention relates to an electric bicycle having an electric motor and a battery pack for driving the electric motor. The electric bicycle includes: a frame tube including a battery pack mounting unit of a concave structure so that the battery pack can be mounted on the outside and including a rolling shaft formed on one side of the battery pack mounting unit in the longitudinal direction such that the battery pack can be mounted by being rotated on the frame tube; and the battery pack wherein a rolling coupling unit corresponding to the rolling shaft is formed on one side of the lower surface to be mounted on the battery pack mounting unit of the frame tube. While the rolling coupling unit of the battery pack is coupled to the rolling shaft of the frame tube, the battery pack is rotated toward the frame tube. So, the battery pack is mounted on the battery pack mounting unit of the frame tube. The battery pack supplies stable electricity to the electric bicycle and has a compact structure integrally connected to the electric bicycle in a small size and a light weight. Moreover, the battery pack provides high safety against physical impacts from the outside. |
