US Patent 9372511 Electronic device

An electronic device including a first body and a second body is provided. The first body has a first connection end. The second body has a second connection end, in which the second connection end has a first magnetic component and a first convex arc surface, and the second body is detachably connected to the first body through a magnetic attractive force between the first magnetic component and the first connection end. The first body and the second body are configured to rotate around a rotation axis relatively to each other, and the first convex arc surface faces the first connection end and extends along a direction parallel to the rotation axis.