Micro vibration motor

Abstract

The invention discloses a micro vibration motor. The motor includes a motor body, an eccentric hammer arranged on one end of the motor body, a terminal arranged on the other end, a rubber sleeve coated on the outer peripheral face of the motor body and an FPC plate fixedly and electrically connected to the terminal; the FPC plate includes a fixing end bended from an end cover side and extending tothe flat horizontal surface of the motor body and a free end extending out of the motor body; one side on the fixing end of the FPC plate is pasted on the flat horizontal surface; the rubber sleeve covers the fixing end of the FPC; the other side of the FPC is provided with at least one conduction region; and a metal adhesive tape is arranged between the rubber sleeve and the FPC plate and electrically communicates with the motor body and the conduction region. The metal adhesive tape includes an arc-shaped surface, a flat horizontal surface and an extension part and wraps the motor body, sothat electromagnetic shielding can be formed, and therefore, the influences of electromagnetic interference on client products caused by the motor body and the FPC can be effectively reduced or completely eradicated.

Description

Technical field: [0001] The invention relates to the field of micro vibration motors, in particular to a micro vibration motor. Background technique: [0002] Micro vibration motors are mainly used in electronic products such as mobile phones, Smart-watches, Bluetooth devices, PADs, Notebooks, etc., to function as silent vibration reminders. [0003] FPC type iron core vibration motor is generally composed of motor body plus FPC and rubber sleeve. Add a ground wire through the FPC or add a window on the flat surface of the rubber sleeve to achieve electrical conduction. [0004] However, in the prior art, the area of ​​the conductive area where the FPC ground wire is in contact with the casing is small, and the conduction performance is poor, so the effect of reducing the influence of electromagnetic interference is poor. The rubber sleeve is open, and the motor body is in full contact with the conductive foam attached by the customer to achieve conduction, but the electro...

AI Technical Summary

Problems solved by technology

[0004] However, under the existing technology, the area of ​​the conductive area where the FPC ground wire contacts the shell is small, the conduction performance is poor, and the effect of reducing the influence of electromagnetic interference is poor.

The rubber sleeve is open, and the motor body is in full contact with the conductive foam attached by the customer to achieve conduction, but the electromagnetic interference that may be caused by the FPC cannot be avoided

[0005] In order to solve the above problems, it is urgent to develop a new iron core vibration motor, which can improve the problem of electromagnetic interference while ensuring the vibration quality, conduction performance and customer size requirements of the vibration motor.

Images