Voice coil motor having fine pattern coil
AssigneeHon Hai Precision Industry Co., Ltd.
InventorPing-Han Ku
Life of this patent
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Abstract
An exemplary voice coil motor includes a movable unit, a fixed unit, and a resilient plate. The movable unit includes a hollow lens barrel for accommodating a number of lenses, and at least one fine pattern coil fixed on a sidewall of the lens barrel and configured for electrical connection to a power source. The fixed unit includes a hollow frame structured bracket and a number of magnets mounted on the bracket. The bracket accommodates the movable unit. The magnets surround and are spaced apart from the at least one fine pattern coil. The resilient plate is resiliently connected between the bracket and the lens barrel to hold the lens barrel on the bracket.
Claims8
A voice coil motor, comprising:
- a movable unit comprising a hollow lens barrel for accommodating a plurality of lenses, and a plurality of separated fine pattern coils, the lens barrel comprising a plurality of side walls, the fine pattern coils respectively fixed on the sidewalls of the lens barrel and configured for electrical connection to a power source, each of the fine pattern coils mounted on the corresponding sidewall of the lens barrel, the fine pattern coils surrounding the lens barrel;
- a fixed unit comprising a hollow frame structured bracket and a plurality of magnets mounted on the bracket, the bracket accommodating the movable unit therein, the magnets surrounding and spaced apart from the pattern coils, each of the magnets facing the corresponding fine pattern coil;
- and
- a resilient plate resiliently connected between the bracket and the lens barrel to hold the lens barrel on the bracket.
A voice coil motor, comprising:
- a housing comprising a top panel and a plurality of side panels extending from peripheral edges of the top panel;
- a movable unit comprising a hollow lens barrel for accommodating a plurality of lenses, and a plurality of separated fine pattern coils, the lens barrel comprising a plurality of side walls, the fine pattern coils respectively fixed on the sidewalls of the lens barrel and configured for electrical connection to a power source, each of the fine pattern coils mounted on the corresponding sidewall of the lens barrel, the fine pattern coils surrounding the lens barrel;
- a resilient plate accommodated in the housing with edges thereof fixed on the side panels, the resilient plate resiliently connected with the lens barrel;
- and
- a plurality of magnets surrounding the fine pattern coils and spaced apart from the at least one fine pattern coil, each of the magnets mounted on an inner surface of the corresponding side panels and facing one of the fine pattern coils.
Dependencies are inferred from the claim text.