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US 11,906,809 B2Granted
Voice coil motor
AssigneeLG Innotek Co., Ltd.
InventorsSang Ok Park, Hyun Rae Cho, Seong Min Lee, Jun Taek Lee
Life of this patent
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Abstract
An exemplary embodiment of the present invention a rotor including a lens and formed with a first driving unit, a stator formed with a second driving unit driving the rotor in response to electromagnetic interaction with the first driving unit, and a base on which the stator is fixed, wherein the rotor is brought into contact with the base, in a case the lens is in a UP posture, and the rotor is distanced from the base, in a case the lens is in a DOWN posture.
Claims20
A VCM (Voice Coil Motor) comprising:
- a base;
- a case disposed on the base and comprising an upper plate and a lateral plate;
- a bobbin disposed in the case;
- a housing disposed between the bobbin and the case;
- a coil and a magnet disposed in the case and configured to move the bobbin;
- and
- an upper elastic member connecting the bobbin and the housing,
- wherein the bobbin is configured to move for an auto focus function and a handshake compensation function,
- wherein the upper elastic member comprises an inner elastic unit coupled to the bobbin, an outer elastic unit coupled to an upper surface of the housing, and an elastic connection unit connecting the inner elastic unit and the outer elastic unit,
- wherein the housing comprises a recess concavely formed on the upper surface of the housing, and
- wherein the recess of the housing is overlapped with the elastic connection unit of the upper elastic member.
8 more elements
A VCM (Voice Coil Motor) comprising:
- a base;
- a case disposed on the base and comprising an upper plate and a lateral plate;
- a bobbin disposed in the case;
- a housing disposed between the bobbin and the case;
- a coil and a magnet disposed in the case and configured to move the bobbin;
- and
- an upper elastic member connecting the bobbin and the housing,
- wherein the bobbin is configured to move for an auto focus function and a handshake compensation function,
- wherein the upper elastic member comprises an inner elastic unit coupled to the bobbin, an outer elastic unit coupled to an upper surface of the housing, and an elastic connection unit connecting the inner elastic unit and the outer elastic unit,
- wherein the housing comprises a recess formed on the upper surface of the housing, and
- wherein the recess of the housing forms a space for the inner elastic unit to move to a position lower than the outer elastic unit.
8 more elements
A VCM (Voice Coil Motor) comprising:
- a base;
- a case disposed on the base and comprising an upper plate and a lateral plate;
- a bobbin disposed in the case;
- a housing disposed between the bobbin and the case;
- a coil and a magnet disposed in the case and configured to move the bobbin;
- and
- an upper elastic member connecting the bobbin and the housing,
- wherein the upper elastic member comprises an inner elastic unit coupled to the bobbin, an outer elastic unit coupled to an upper surface of the housing, and an elastic connection unit connecting the inner elastic unit and the outer elastic unit,
- wherein the housing comprises a recess concavely formed on the upper surface of the housing,
- wherein the recess of the housing is overlapped with the elastic connection unit of the upper elastic member, and
- wherein the recess of the housing comprises a stepped portion.
8 more elements
Dependencies are inferred from the claim text.