Patent ID: 11916457
Assignee: JINLONG MACHINERY & ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A moving-magnet-type linear vibration motor, comprising:
a housing, having an accommodation space;
two elastic members, oppositely connected on side walls of the housing;
a mass block, hung inside the accommodation space of the housing through circumferential wall respectively connected with the two elastic members;
two magnets, respectively fixedly connected with two sides of the mass block, and forming an acute angle or an obtuse angle with respect to a connection line between the centers of the two elastic members;
two coils fixed on the housing and respectively spaced apart from a corresponding one of the magnets, and forming an acute angle or an obtuse angle with respect to the connection line between the centers of the two elastic members;
the X direction is in the longitudinal extending direction of the mass block, the Y direction is along the connection line between the centers of the two elastic members, and the Z direction is a direction that is simultaneously perpendicular to both the X direction and the Y direction; the Lorentz force exerted on each of the two coils is decomposed into components in the Y direction and in the Z direction; and each of the two magnets is correspondingly acted on by two respective acting forces of equal size and opposite direction relative to the two force components of the Lorentz force exerted on each of the two coils;
wherein the magnets are Helbeck-structured magnetic steel assembly with a strong surface facing the coils.