Invention Grant
- Patent Title: Vibration motor
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Application No.: US16527013Application Date: 2019-07-30
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Publication No.: US11025148B2Publication Date: 2021-06-01
- Inventor: Yun Tang , Lubin Mao
- Applicant: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
- Applicant Address: CN Shenzhen
- Assignee: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
- Current Assignee: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
- Current Assignee Address: CN Shenzhen
- Agency: W&G Law Group LLP
- Priority: CN201821255456.2 20180803
- Main IPC: H02K33/12
- IPC: H02K33/12 ; B06B1/04

Abstract:
A vibration motor includes a housing, a vibrator, a driving apparatus, and an elastic part. The housing includes a top wall, a bottom wall and a side wall. The vibrator includes a counterweight block and magnet steels disposed in the counterweight block. The vibration motor further includes a hollow portion penetrating through the counterweight block from an upper surface toward a lower surface, and inner walls defining the hollow portion. The driving apparatus is disposed in the hollow portion and drives the counterweight block to vibrate in vibrate directions parallel to the bottom wall. The inner walls include a first and a second inner wall, the magnet steels include a first magnet steel disposed on the first inner wall and a second magnet steel disposed on the second inner wall, which interact with the driving apparatus respectively to drive the vibrator to vibrate along the two vibrate directions.
Public/Granted literature
- US20200044535A1 VIBRATION MOTOR Public/Granted day:2020-02-06
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