Vertical linear vibration motor

Abstract

The present disclosure provides a vertical linear vibration motor, which includes a casing. A mover assembly and a stator assembly corresponding to the mover assembly are arranged in the casing. The stator assembly includes a coil and an FPC board for connecting the coil to an external circuit. The FPC board is provided with a first avoidance groove matching the lead of the coil and a buffer layermatching the mover assembly. The first avoidance groove is provided therein with a first connection portion connected to the lead of the coil. The vertical linear vibration motor can prevent the mover assembly from touching the FFC board and the lead of the coil, or even disconnecting the lead of the coil, so as to reduce noise, thereby ensuring the vibration frequency and the vibration effect ofa product. The vertical linear vibration motor is simple, compact and stable in structure, improves product vibration space, stability, reliability, and process yields, and facilitates product mass production.

Description

technical field [0001] The present disclosure relates to the technical field of linear motors, in particular to a vertical linear vibration motor. Background technique [0002] With the rapid development of electronic products, especially mobile terminal devices such as mobile phones and tablet computers, these electronic devices basically use vibration generators to prevent noise from electronic devices from disturbing others. The traditional vibration generating device uses a rotor motor based on eccentric rotation, which realizes mechanical vibration through the rotation of the eccentric vibrator. During the rotation of the eccentric vibrator, the commutator and brushes will generate mechanical friction and electric sparks, etc., which will affect The rotational speed of the eccentric vibrator further affects the vibration effect of the device. Therefore, the vibration generating device mostly uses a linear motor with better performance. [0003] Linear motors, also know...

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Problems solved by technology

[0004] However, due to certain defects in the design of some existing linear vibration motors, problems such as the moving subassembly hitting the FPC board and the lead wire of the coil, or even breaking the lead wire of the coil during the vibration process may occur. A certain amount of noise is generated, which affects the vibration effect and frequency of the motor, resulting in poor stability and reliability of the motor, low process yield, and difficulty in mass production, which in turn affects the application and development of linear vibration motors

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