Invention Grant
- Patent Title: Vibration motor with movable portion having bearing with flange around a magnet and tactile device
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Application No.: US17371026Application Date: 2021-07-08
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Publication No.: US11673164B2Publication Date: 2023-06-13
- Inventor: Atsunori Hirata , Ryoichi Mitsuhata
- 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 2021013170 2021.01.29
- Main IPC: H02K33/16
- IPC: H02K33/16 ; B06B1/04 ; H02K33/02

Abstract:
A vibration motor and a tactile device are provided. The vibration motor has: a stationary portion; a movable portion, capable of vibrating with respect to the stationary portion along a central axis extending in an up-down direction; and an elastic member. The stationary portion has: a case including a housing disposed radially outside from the movable portion and having a cylindrical shape extending along the central axis; and a coil, capable of applying a driving force to the movable portion. The movable portion has: a magnet, extending along the central axis; and a holder, disposed above the magnet. The holder has: an upper portion, extending in a direction intersecting with the central axis and disposed above an upper surface of the magnet; and a side surface portion, extending downward from a radial outer edge part of the upper portion and fixed to a radial outer side surface of the magnet.
Public/Granted literature
- US20220008955A1 VIBRATION MOTOR AND TACTILE DEVICE Public/Granted day:2022-01-13
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