Patent ID: 8615278

Claim:
An electrical device, comprising: a first main body; a second main body being rotatable relative to the first main body, and comprising a housing, the housing defining a slot; and a rotation mechanism received in the housing and configured to connect the first main body to the second main body; the rotation mechanism comprising a spindle disposed in the housing, a driving element and a driven element, the driving element fitted around the spindle and comprising a holding portion protruding out of the housing via the slot, the driving element being movable along opposite linear directions, the driven element being fastened on the first main body and being driven by the driving element when the driving element moves along one of the opposite directions from a first position to a second position, and the driven element defining a rotation axis, and comprising a central body and two cam portions, the two cam portions being rotationally symmetric about an axis of the central body, and the central body fitted around the spindle; wherein the electrical device is capable of being adjusted to be in a folded state or an unfolded state; and in an initial state of the electrical device, the driving element is at the first position; and when external force is applied on the holding portion to drive the driving element to move along said one of the opposite directions from the first position to the second position, the driving element drives the driven element to rotate, and the first main body rotates in unison with the driven element to switch the electrical device from one of the folded state and the unfolded state to the other one of the folded state and the unfolded state.