Tactile actuator
AssigneeCk Materials Lab Co., Ltd.
InventorsHyeong Jun Kim, Jong Hyung Jung, Jong Hun Lee, Nam Seok Kim
Life of this patent
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Abstract
A tactile actuator, according to one embodiment, may comprise: a housing defining an accommodation space therein; an upper case for covering the upper part of the accommodation space; a vibration unit arranged inside the accommodation space; an upper elastic member connecting the upper side of the housing and the vibration unit; a lower elastic member for connecting the lower side of the housing and the vibration unit; and a coil for forming a magnetic field to drive the vibration unit, wherein one end of the upper elastic member may be fixed to a position on a side wall of the housing that is apart from the upper case.
Claims12
A tactile actuator comprising:
- a housing having an accommodation space therein;
- an upper case configured to cover an upper portion of the accommodation space;
- a vibrator disposed in the accommodation space;
- an upper elastic member configured to connect an upper side and the vibrator;
- and
- a coil configured to form a magnetic field to drive the vibrator, wherein one end portion of the upper elastic member is fixed at a position spaced apart from the upper case on a side wall of the housing,
- wherein the vibrator comprises:
- a mass body connected to the upper elastic member and having a magnetic property, and
- wherein the mass body comprises:
- a first stepped portion downwardly recessed from an edge of a top surface of the mass body, the first stepped portion being disposed outwardly from a center of a top surface of the mass body such that the first stepped portion does not overlap with the top surface of the mass body;
- and
- a second stepped portion downwardly recessed from the first stepped portion, the second stepped portion being disposed outwardly from the first stepped portion, and
- the upper elastic member comprises:
- an upper elastic fixer fixed to the upper side of the housing:
- an upper elastic support fit into the first stepped portion;
- and
- an upper elastic connector configured to connect the upper elastic fixer and the upper elastic support.
Dependencies are inferred from the claim text.