Patent ID: 8354999

Claim:
A computer mouse comprising: a housing; and a button assembly, the button assembly comprising: a button exposed out of the housing; a circuit board received in the housing, the circuit board comprising a first contact and a second contact; a first conductive sheet with a first magnet fixed thereon and separated from the circuit board, and electrically connected to the first contact of the circuit board via a first connecting portion, wherein the first connecting portion is an elastic sheet for supporting the first conductive sheet and the first magnet; a second conductive sheet with a second magnet fixed thereon and electrically connected to the second contact of the circuit board, the second conductive sheet being fixed to the button and contactable with the first conductive sheet when the button is pressed, the second magnet and the first magnet forming a repulsive force therebetween, wherein the circuit board detects a connection between the first conductive sheet and the second conductive sheet when the button is pressed; and a third magnet mounted on the circuit board for applying a repulsive force to the first magnet.