公开(公告)号：US20200227993A1

公开(公告)日：2020-07-16

申请号：US16638329

申请日：2017-11-21

Applicant: GOERTEK INC.

Inventor： Weiye ZANG ,  Xinzhong ZHANG

IPC: H02K33/02 ,  G06F3/01

Abstract: A linear vibration motor, comprising: a stator assembly comprising a housing (1) having a receiving cavity, and a magnet (2) located in the receiving cavity and jointly fixed to an inside surface of the housing (1), wherein the magnet (2) comprises a hollow portion (21); a vibrator assembly comprising a coil (3) and a mass (4); a resilient support member (5) configured to suspend the vibrator assembly in the receiving cavity of the housing (1), wherein the housing (1) comprises a fixing portion (10) corresponding to the magnet (2), and the top surface of the magnet (2) is jointly fixed to the bottom surface of the fixing portion (10). The efficiency of utilizing the magnetic force line of the coil and magnet is improved.

公开(公告)号：US20200169156A1

公开(公告)日：2020-05-28

申请号：US16638353

申请日：2017-11-21

Applicant: GOERTEK INC.

Inventor： Weiye ZANG ,  Dongsheng MAO

IPC: H02K33/18 ,  B06B1/04

Abstract: A linear vibration motor, comprising a stator assembly and a vibrator assembly. The stator assembly comprises a housing (1) having a receiving cavity, a. magnet (2) located in the receiving cavity and jointly fixed to the housing (1), and a central magnetic yoke (3) of which at least one end is jointly fixed to the housing (1). The magnet (2) comprises a hollow portion (21) extending along the vibration direction of the vibrator assembly. The vibrator assembly comprises a coil (4) and a mass block (9). When the vibrator assembly vibrates, the coil (4) vibrates along with the vibrator assembly and is inserted into the hollow portion (21) of the magnet (2). The central magnetic yoke (3) runs through the coil (4). An resilient support member (5) is configured to suspend the vibrator assembly in the receiving cavity of the housing (1). According to the linear vibration motor, the magnetism of the magnet can be utilized to the greatest extent, thereby improving the efficiency of utilizing the magnetic line of force of the magnet by the coil, the central magnetic yoke functions as a guide shaft, thereby ensuring the vibration coaxiality of the vibrator assembly.