Flat brushless vibration motor

• Main Authors: LIU YULIAN, ZHU QUNXIN, JIAO WEICHAO
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2024
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The utility model relates to the technical field of vibration motors, and discloses a flat brushless vibration motor, which comprises a shell, an end cover, a stator assembly, a rotor assembly and a fixed shaft, the shell and the end cover are buckled to form an accommodating space, the stator assembly, the rotor assembly and the fixed shaft are accommodated in the accommodating space, and the fixed shaft is arranged in the accommodating space. The rotor assembly sleeves the fixed shaft and can rotate around the fixed shaft; the rotor assembly comprises a bracket, a bearing fixed on the bracket, an eccentric hammer fixed on the bearing in a sleeving manner and first magnets symmetrically arranged on two sides of the bearing; the stator assembly comprises a flexible circuit board, an annular coil and a magnet ring bonded and fixed to the inner surface of the coil, after the coil is powered on, the magnetic field of the first magnet is enhanced until the magnetic field intensity of the first magnet is larger th