Abstract: An electronic device, including a driving mechanism and a first housing and a second housing that are rotatably connected; the first housing is provided with a first magnetic mechanism; the second housing is provided with a second magnetic mechanism; the driving mechanism is connected to the second magnetic mechanism, and the driving mechanism is used to drive the second magnetic mechanism to move to have the second magnetic mechanism and the first magnetic mechanism mutually attracted together or mutually repelled to be separated from each other and thereby to drive the first housing and the second housing to rotate relatively to each other.

Abstract: A foldable housing assembly includes a first housing and a second housing rotatably connected thereto. The first housing and the second housing are rotatable relative to each other to reach a folded state. The second housing includes a main body configured to rotatably connect to the first housing, and an accommodating portion configured to connect to the main body. The accommodating portion protrudes relative to a surface of the main body, and the first housing is stacked on the main body and arranged side by side with the accommodating portion when the first housing and the second housing are overlapped. The foldable housing assembly further includes an angle detection unit comprising a magnet arranged in the first housing and a Hall device arranged in the accommodating portion for sensing a magnetic field strength of the magnet to obtain an angle between the first housing and the second housing.

Abstract: A rotating shaft mechanism includes: a rotating shaft bracket; a guide member, movably connected to the rotating shaft bracket; an elastic member, disposed between the guide member and the rotating shaft bracket; and two rotating arms. One of the two rotating arms is rotatably arranged on a first end of the rotating shaft bracket, and the other one is rotatably arranged on a second end of the rotating shaft bracket opposite to the first end. At least one of the two rotating arms abuts against the guide member. When the two rotating arms rotate relative to the rotating shaft bracket and move closer to each other, the guide member is driven to protrude out of the rotating shaft bracket.