• Patent Title: Linear vibration motor
  • Application No.: US16075560
    Application Date: 2016-05-18
  • Publication No.: US11133735B2
    Publication Date: 2021-09-28
  • Inventor: Fenglei ZuChunfa Liu
  • Applicant: GOERTEK INC.
  • Applicant Address: CN WeiFang
  • Assignee: GOERTEK INC.
  • Current Assignee: GOERTEK INC.
  • Current Assignee Address: CN WeiFang
  • Priority: CN201610082381.1 20160205
  • International Application: PCT/CN2016/082479 WO 20160518
  • International Announcement: WO2017/133132 WO 20170810
  • Main IPC: H02K33/16
  • IPC: H02K33/16
Linear vibration motor
Abstract:
The vibrator comprises a vibration block, and the vibration block comprises at least one permanent magnet, the stator comprises conductive blocks, and the conductive blocks are subjected to the effect of a magnetic field force which is the same as and/or opposite to the vibration direction of the vibrator. When the vibrator is in a balanced state, the resultant force of the magnetic field force is zero. When the magnetic conductive blocks are subjected to the effect of an excitation force to perform a relative displacement relative to the vibrator in the vibration direction of the vibrator, a direction of the resultant force of the magnetic field forces is the same as the direction of the relative displacement, a magnitude of the resultant force of the magnetic field forces has a proportional relationship with a magnitude of the relative displacement. The conductive blocks are used to replace the stator coils.
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