The invention discloses a head-mounted device, which comprises a shell, a circuit board and a
damper, and is characterized in that the circuit board is located at the inner side of the shell; the
damper is arranged between the circuit board and the shell; the
damper comprises a cylinder body, a push rod and a
piston plate; an opening is formed in one end of the cylinder body, the first end of the push rod is connected with the shell, and the second end of the push rod is located at the opening; the
piston plate is arranged at the second end of the push rod, and the periphery of the
piston plate is in zero fit with the inner wall of the cylinder body; the piston plate can do
reciprocating motion in the cylinder body, and
vibration isolation is formed on the load transmitted to the circuit board from the shell. The damper is adopted to isolate vibration of the load transmitted to the circuit board from the shell, and compared with the mode that a
rigid body structure is adopted to
resist impact load in the prior art, the load transmitted to the circuit board is greatly reduced, and electronic devices on the circuit board can be effectively protected.