Invention Grant
- Patent Title: Vibration motor with guide rail and rolling members and stopping magnet
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Application No.: US16994687Application Date: 2020-08-17
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Publication No.: US11569723B2Publication Date: 2023-01-31
- Inventor: Jie Ma
- Applicant: AAC Technologies Pte. Ltd.
- Applicant Address: SG Singapore
- Assignee: AAC Technologies Pte. Ltd.
- Current Assignee: AAC Technologies Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: W&G Law Group
- Main IPC: H02K33/18
- IPC: H02K33/18 ; G08B6/00

Abstract:
Provided is a vibration motor, including: a housing having a receiving space; a vibrator received in the receiving space; and a coil configured to drive the vibrator to reciprocate; and a guide rail received in the receiving space and fixed to the housing. The vibrator includes a rolling friction portion corresponding to the guide rail, and the rolling friction portion comprises a mass block spaced apart from and opposite to the guide rail, and a plurality of rolling members connected between the mass block and the guide rail in a slidable way. Compared with the related art, the vibration motor provided by the present invention can effectively reduce a friction force and improve a performance thereof.
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