MAGNETIC BALANCE STRUCTURE AND A MAGNETIC BALANCE LINEAR VIBRATION MOTOR

This invention provides a magnetic balance structure and a magnetic balance linear vibration motor, the structure comprises: a counter weight, a positioning element, a first positioning magnet, a shell and a shaft, the positioning element is set on the counter weight or the shell, and the positioning element is set with the first positioning magnet face-to-face; the shaft is set on the shell; the interaction of the positioning element with the first positioning magnet causes the counter weight to do reciprocating motion along the shaft at the same level. The motor comprises: a shell, the shell is internally provided with: a stator, a rotor and a shaft, the stator comprises a drive coil, when the drive coil is powered up, driving the rotor cutting its magnetic lines of force, generate driving force, and driving the rotor to do reciprocating linear motion along the shaft; the positioning element and the first positioning magnet are respectively set on the rotor or the shell; the rotor does reciprocating linear motion along the shaft at the same horizontal plane under the driving force and the interaction of the positioning element and the first positioning magnet. The invention using the magnetic principle to replace the mechanical spring to achieve good vibration, makes processing and assembly simple, prolongs the service life, and reduces the noise.