The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2020
Filed:
Dec. 15, 2015
Goertek Inc., WeiFang, CN;
Fenglei Zu, WeiFang, CN;
Chunfu Liu, WeiFang, CN;
GOERTEK INC., Weifang, Shandong, CN;
Abstract
A linear vibration motor comprises a vibrator and a stator arranged parallel to the vibrator. The vibrator comprises a counterweight block and a vibration block embedded and fixed in the counterweight block. Permanent magnets in the vibration block and electromagnets in the stator generate the push-pull forces acting on each other. The electromagnets in the stator generates a variable magnetic field after being energized, and drives the vibrator to move reciprocally along the direction parallel to the plane in which the stator is located by changing the direction of the magnetic field lines of the magnetic field. With the repulsive force between two ends the permanent magnets having the same polarity, the linear vibration motor allows the magnetic field lines of the permanent magnets to concentratedly pass through coils, thus obtaining a larger magnetic flux and a stronger vibration effect.