US 2025/0385584 A1Published application

Linear Motor

AssigneeAAC Microtech (Changzhou) Co., Ltd.

InventorsPeng Cai, Junsheng Wang, Jie Wu, Fali Zhong

Life of this patent

Estimating the term…

Loading patent…

Abstract

The present invention provides a linear motor having a housing with an accommodating cavity, a vibrator component and a stator component accommodated in the accommodating cavity. The stator component includes a guiding member and a coil unit for driving the vibrator component to reciprocate along a first direction. The vibrator component includes a magnet component having at least two magnets with magnetization directions opposite to each other. The stator component further includes auxiliary magnet components to form magnetic repulsion forces. The present invention replaces the traditional spring with a magnetic spring that forms a magnetic repulsion force between the magnets, improving the vibration performance and reliability of the linear motor

Claims10

Dependent claims

A linear motor comprising:

a housing with an accommodating cavity;
a stator component accommodated in the accommodating cavity, the stator component comprising a guiding member fixed to the housing for supporting the vibrator component, and a coil unit for driving the vibrator component to reciprocate in a first direction;
a vibrator component received in the accommodating cavity, the vibrator component comprising a magnet component arranged along the first direction, the magnet component comprising at least two magnets arranged along the first direction, each of the magnets being magnetized along the first direction and magnetization directions of adjacent two magnets being opposite to each other;
wherein
the stator component further comprises an auxiliary magnet component positioned near to adjacent ends of the at least two adjacent magnets;
the auxiliary magnet component is magnetized along a second direction perpendicular to the first direction and forms magnetic repulsion with the corresponding the at least two magnets.

3 more elements

Dependencies are inferred from the claim text.