Patent ID: 11962982
Assignee: GOERTEK INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A vibration exciter for an electronic product, the vibration exciter comprising:
a first vibration assembly comprising a first casing and a magnetic circuit assembly disposed below the first casing; and
a second vibration assembly comprising a second casing and at least two groups of coils disposed above the second casing,
wherein the at least two groups of coils are disposed on two sides of the magnetic circuit assembly,
wherein the magnetic circuit assembly comprises a central magnet and at least two side magnets, the at least two side magnets are distributed parallel to a vibration direction, and the central magnet is disposed between the at least two side magnets,
wherein magnetizing directions of the at least two side magnets are parallel to an axial direction of the coils, and directions of magnetic poles of the at least two side magnets are opposite, and
wherein the central magnet comprises at least two magnets distributed in sequence perpendicular to the vibration direction, magnetizing directions of the at least two magnets are parallel to the vibration direction, and the directions of the magnetic poles of the adjacent magnets are opposite.