Voice coil motor having a bobbin, a coil, a magnet and an elastic member
AssigneeLG Innotek Co., Ltd.
InventorsSang Ok Park, Seong Min Lee, Jun Taek Lee
Life of this patent
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Abstract
A camera module according to an exemplary embodiment of the present disclosure is proposed, the camera module including a PCB (Printed Circuit Board) mounted with an image sensor, a housing member arranged at an upper surface of the PCB, a bobbin movably positioned at an inner side of the housing member, an upper elastic member connected to an upper surface of the housing member and to an upper surface of the bobbin, and a space forming part formed at one side of the housing member to provide a moving space to the upper elastic member when the bobbin makes a relatively vertical movement to the housing member.
Claims20
A VCM (Voice Coil Motor) comprising:
- a housing member comprising an upper plate and a lateral plate;
- a bobbin disposed in the housing member and configured to move in an optical axis direction;
- a coil disposed on the bobbin;
- a magnet disposed between the coil and the lateral plate of the housing member;
- a spacer member disposed between the magnet and the upper plate of the housing member;
- and
- an upper elastic member coupled to an upper surface of the bobbin,
- wherein the upper elastic member comprises a first fixing part disposed on the spacer member, a second fixing part disposed on the upper surface of the bobbin and a connection part connecting the first fixing part and the second fixing part,
- wherein the connection part is spaced apart from the magnet and overlapped with the magnet in the optical axis direction, and
- wherein the connection part is spaced apart from the spacer member and overlapped with the spacer member in the optical axis direction.
A VCM (Voice Coil Motor) comprising:
- a base;
- a housing member disposed on the base and comprising an upper plate and a lateral plate;
- a bobbin disposed in the housing member and configured to move in an optical axis direction;
- a coil disposed on the bobbin;
- a magnet disposed between the coil and the lateral plate of the housing member;
- a spacer member disposed between the magnet and the upper plate of the housing member;
- and
- an upper elastic member coupled to an upper surface of the bobbin,
- wherein the upper elastic member comprises a first fixing part disposed on the spacer member, a second fixing part disposed on the upper surface of the bobbin and a connection part connecting the first fixing part and the second fixing part,
- wherein the connection part is spaced apart from the magnet at an initial position when no driving current is supplied to the coil,
- wherein the connection part is overlapped with the magnet in the optical axis direction,
- wherein the connection part is spaced apart from the spacer member at the initial position, and
- wherein the connection part is overlapped with the spacer member in the optical axis direction.
A VCM (Voice Coil Motor) comprising:
- a housing member comprising an upper plate and a lateral plate extending from the upper plate;
- a bobbin disposed in the housing member;
- a coil disposed on the bobbin;
- a magnet disposed between the coil and the lateral plate of the housing member;
- a spacer between the magnet and the upper plate of the housing member, wherein the spacer comprises a protrusion that protrudes from a lower surface of the spacer;
- and
- an upper elastic member coupled with the bobbin,
- wherein the upper elastic member comprises a first fixing part disposed on the lower surface of the spacer, a second fixing part coupled with the bobbin, and a connection part coupled with the first fixing part and the second fixing part,
- wherein the connection part is spaced apart from the magnet,
- wherein the connection part is spaced apart from the spacer, and
- wherein a lower surface of the protrusion is disposed on the magnet.
Dependencies are inferred from the claim text.