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US 10,305,357 B2Granted
Vibration generator having swing unit, frame and elastic member
AssigneeMinebea Co., Ltd.
InventorManabu Nakamura
Life of this patent
Estimating the term…
Abstract
A vibrator includes a frame, a swing unit, and an elastic member. The swing unit is disposed within the frame and holds a magnet. The elastic member connects the swing unit and the frame. The swing unit is movable with respect to the frame while deforming the elastic member. The frame, the swing unit, and the elastic member are integrally molded with each other.
Claims20
A vibrator generator comprising:
- a top plate;
- a bottom plate;
- a frame arranged between the top plate and the bottom plate;
- a swing unit arranged inside the frame;
- an elastic member coupling the swing unit and the frame;
- and
- a coil having a flat plated shape;
- wherein:
- the coil faces the swing unit,
- the swing unit includes a magnet and a weight arranged around the magnet,
- an inner side surface of the frame extends in a swing direction of the swing unit,
- an outer circumferential surface of the weight faces the inner side surface of the frame,
- the outer circumferential surface of the weight has a recessed portion, and
- the elastic member is arranged between the recessed portion and the inner side surface of the frame,
- a groove is provided in a jointing surface between the elastic member and the weight, and
- the jointing surface between the elastic member and the weight is uneven between a surface of the weight facing the top plate and a surface of the weight facing the bottom plate.
13 more elements
A vibrator generator comprising:
- a top plate;
- a bottom plate;
- a frame arranged between the top plate and the bottom plate;
- a swing unit;
- and
- an elastic member supporting displaceably the swing unit with respect to the frame in a horizontal direction,
- wherein:
- the swing unit includes a weight including a first joint jointed to the elastic member,
- a part in an outer circumferential surface of the weight facing the frame forms the first joint,
- the elastic member includes a second joint jointed to the weight,
- a jointing surface is formed with the part in the outer circumferential surface of the first joint facing the frame and a part in an outer circumferential surface of the second joint,
- the part in the outer circumferential surface of the first joint forming the jointing surface or the part of the outer circumferential surface of the second joint forming the jointing surface is inclined and uneven between a surface of the weight facing the top plate and a surface of the weight facing the bottom plate,
- the surface of the first joint facing the top plate and the surface of the second joint facing the top plate are arranged in a line in the horizontal direction,
- the surface of the first joint facing the bottom plate and the surface of the second joint facing the bottom plate are arranged in a line in the horizontal direction.
11 more elements
A vibrator generator comprising a plurality of elastic members including the elastic member, wherein
- the plurality of elastic members includes a plurality of second joints including the second joint,
- the weight includes a plurality of first joints including the first joint,
- jointing surfaces including the jointing surface are formed with the part in the outer circumferential surface of the first joint facing the frame and the part in the outer circumferential surfaces of the second joints.
Dependencies are inferred from the claim text.