Invention Grant
- Patent Title: Vibration motor
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Application No.: US17369983Application Date: 2021-07-08
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Publication No.: US11670997B2Publication Date: 2023-06-06
- Inventor: Atsunori Hirata , Tomohiro Hasegawa , Daisuke Adachi , Hiroaki Hirano , Hideki Nishimura
- Applicant: NIDEC CORPORATION
- Applicant Address: JP Kyoto
- Assignee: NIDEC CORPORATION
- Current Assignee: NIDEC CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: JCIPRNET
- Priority: JP 2020119456 2020.07.10 JP 2021013174 2021.01.29
- Main IPC: H02K33/02
- IPC: H02K33/02

Abstract:
A vibration motor includes a stationary part, and a movable element which has a magnet and can vibrate in one direction. The stationary part includes a coil which applies a driving force to the magnet due to energization, a housing which houses the movable element and the coil therein, a first lid part which closes an end portion of the housing on one side in the one direction, and a first bearing part. The first bearing part is disposed inside the housing on the other side in the one direction from the first lid part. The first bearing part includes a bearing inner circumferential surface disposed with a gap therebetween with respect to an outer circumferential surface of a portion of the movable element on one side in the one direction.
Public/Granted literature
- US20220014082A1 VIBRATION MOTOR Public/Granted day:2022-01-13
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