Earphone box and earphone assembly

The invention discloses an earphone box and an earphone assembly, and belongs to the technical field of communication. The earphone box comprises a box body, a cover body and a locking mechanism, the box body is provided with a containing cavity used for containing an earphone and an opening communicated with the containing cavity, the cover body is movably arranged at the opening to open or close the opening, the locking mechanism comprises a locking piece and a swing arm, the locking piece is arranged on the box body, the swing arm is rotatably arranged on the cover body, and the locking piece is movably arranged on the box body. One of the locking piece and the swing arm is provided with a locking groove, the other one of the locking piece and the swing arm is provided with a locking protrusion, and the swing arm is fixed relative to the cover body under the condition that the movement acceleration of the cover body is smaller than the first acceleration; under the condition that the motion acceleration of