Lens moving apparatus, camera module and optical appliance including the same
Embodiments provide a lens moving apparatus including a bobbin in which a lens is mounted, a first coil and a magnet configured to electromagnetically interact with each other so as to move the bobbin, a housing configured to accommodate the bobbin therein, an elastic member including an inner frame coupled to the bobbin, an outer frame coupled to the housing, and a frame connection portion configured to connect the inner frame and the outer frame to each other, and a support member connected to the elastic member and configured to support the housing, and the outer frame includes a first coupling portion coupled to the housing, a second coupling portion coupled to the support member, the second coupling portion being spaced apart from the first coupling portion, and a single connection portion configured to connect the first coupling portion and the second coupling portion to each other.
1. A lens moving apparatus comprising:
a housing;
a bobbin disposed in the housing;
a first coil disposed on the bobbin;
a magnet disposed on the housing and facing the first coil;
a second coil disposed under the magnet;
an upper elastic member coupled to an upper portion of the housing and comprising a first upper elastic member and a second upper elastic member separated from each other,
a first supporting member connected to the first upper elastic member; and
a second supporting member connected to the second upper elastic member,
wherein the first upper elastic member comprises an outer frame coupled to the upper portion of the housing, an inner frame coupled to an upper portion of the bobbin, and a frame connection portion connecting the inner frame and the outer frame,
wherein the outer frame of the first upper elastic member comprises:
a first coupling portion coupled to the upper portion of the housing;
a second coupling portion coupled to the first supporting member; and
a first connection portion connecting the first coupling portion and the second coupling portion,
wherein a width of the first connection portion is smaller than a width of the first coupling portion and a width of the second coupling portion,
wherein the first connection portion comprises a curved part,
wherein the second upper elastic member is coupled to the upper portion of the housing and spaced apart from both the first upper elastic member and the bobbin,
wherein the second upper elastic member comprises a third coupling portion coupled to the upper portion of the housing, a fourth coupling portion coupled to the second supporting member and a second connection portion connecting the third coupling portion and the fourth coupling portion, and
wherein the second connection portion comprises a curved part.
2. The lens moving apparatus according to claim 1 , wherein the first supporting member is disposed at a first corner of the housing, and the second supporting member is disposed at a second corner of the housing.
3. The lens moving apparatus according to claim 2 , further comprising:
a third upper elastic member coupled to the upper portion of the housing;
a fourth upper elastic member coupled to the upper portion of the housing,
a third supporting member connected to the third upper elastic member and disposed at the first corner of the housing; and
a fourth supporting member connected to the fourth upper elastic member and disposed at the second corner of the housing,
wherein the third upper elastic member is spaced apart from the first upper elastic member and the fourth upper elastic member is spaced apart from the second upper elastic member.
4. The lens moving apparatus according to claim 1 , wherein the curved part of the first connection portion is curved by being bent from the first connection portion.
5. The lens moving apparatus according to claim 1 , wherein a distance from an optical axis to an extreme point of the curved part of the first connection portion is greater than a distance from the optical axis to the second coupling portion.
6. The lens moving apparatus according to claim 1 , further comprising a circuit board comprising a first terminal electrically connected to the first supporting member; and a second terminal electrically connected to the second supporting member,
wherein the first supporting member is electrically connected between the first terminal and the second coupling portion, and the second supporting member is electrically connected between the second terminal and the fourth coupling portion, and
wherein the second coil is a circuit pattern formed on the circuit board.
7. The lens moving apparatus according to claim 1 , further comprising:
a first position sensor disposed between the housing and the bobbin,
a base disposed under the second coil;
a second position sensor disposed in a recess provided on an upper surface of the base, and
wherein the frame connection portion of the first upper elastic member has a width that is smaller width than a width of the first connection portion.
8. The lens moving apparatus according to claim 3 , wherein the fourth upper elastic member is spaced apart from both the fourth upper elastic member and the bobbin, and
wherein the first corner of the housing is disposed opposite to the second corner of the housing.
9. The lens moving apparatus according to claim 8 , wherein the third upper elastic member comprises:
a fifth coupling portion coupled to the upper portion of the housing;
a sixth coupling portion coupled to the third supporting member; and
a third connection portion connecting the fifth coupling portion and the sixth coupling portion, and
wherein the fourth upper elastic member comprises:
a seventh coupling portion coupled to the upper portion of the housing;
an eighth coupling portion coupled to the fourth supporting member; and
a fourth connection portion connecting the seventh coupling portion and the eighth coupling portion.
10. The lens moving apparatus according to claim 8 , further comprising:
a fifth upper elastic member coupled to the upper portion of the housing;
a sixth upper elastic member coupled to the upper portion of the housing;
a fifth supporting member connected to the fifth upper elastic member and disposed at a third corner of the housing; and
a sixth supporting member connected to the sixth upper elastic member and disposed at a fourth corner of the housing,
wherein the third corner of the housing is disposed opposite to the fourth corner of the housing.
11. The lens moving apparatus according to claim 10 , wherein the fifth upper elastic member comprises an outer frame coupled to the upper portion of the housing, an inner frame coupled to an upper portion of the bobbin, and a frame connection portion connecting the inner frame and the outer frame, and
wherein the sixth upper elastic member comprises an outer frame coupled to the upper portion of the housing, an inner frame coupled to an upper portion of the bobbin, and a frame connection portion connecting the inner frame and the outer frame.
12. The lens moving apparatus according to claim 10 , wherein two of the first to sixth upper elastic members are electrically connected to the first coil.
13. The lens moving apparatus according to claim 12 , further comprising a first position sensor disposed between the housing and the bobbin, and
wherein the remaining four of the first to sixth upper elastic members are electrically connected to the first position sensor.
14. The lens moving apparatus according to claim 10 , further comprising:
a seventh upper elastic member coupled to the upper portion of the housing;
an eight upper elastic member coupled to the upper portion of the housing;
a seventh supporting member connected to the seventh upper elastic member; and
an eighth supporting member connected to the eighth upper elastic member.
15. A lens moving apparatus comprising:
a housing;
a bobbin disposed in the housing;
a first coil disposed on the bobbin;
a magnet disposed on the housing and facing the first coil;
a second coil disposed under the magnet;
an upper elastic member coupled to an upper portion of the housing and comprising a first upper elastic member and a second upper elastic member separated from each other,
a first supporting member connected to the first upper elastic member; and
a second supporting member connected to the second upper elastic member,
wherein the first upper elastic member comprises a first outer frame coupled to the upper portion of the housing, a first inner frame coupled to an upper portion of the bobbin, and a first frame connection portion connecting the first inner frame and the first outer frame,
wherein the first outer frame comprises a first coupling portion coupled to the upper portion of the housing, a second coupling portion coupled to the first supporting member and a first connection portion connecting the first coupling portion and the second coupling portion,
wherein the second upper elastic member is coupled to the upper portion of the housing and spaced apart from both the first upper elastic member and the bobbin,
wherein the second upper elastic member comprises a fourth coupling portion coupled to the upper portion of the housing, a fifth coupling portion coupled to the second supporting member and a second connection portion connecting the fourth coupling portion and the fifth coupling portion, and
wherein the second connection portion comprises a curved part.
16. The lens moving apparatus according to claim 15 , wherein the first supporting member is disposed at a first corner of the housing, and the second supporting member is disposed at a second corner of the housing.
17. The lens moving apparatus according to claim 16 , further comprising:
a third upper elastic member coupled to the upper portion of the housing;
a fourth upper elastic member coupled to the upper portion of the housing,
a third supporting member connected to the third upper elastic member and disposed at the first corner of the housing; and
a fourth supporting member connected to the fourth upper elastic member and disposed at the second corner of the housing,
wherein the third upper elastic member is spaced apart from the first upper elastic member and the fourth upper elastic member is spaced apart from the second upper elastic member.
18. The lens moving apparatus according to claim 15 , wherein the curved part of the first connection portion is curved by being bent from the first connection portion.
19. The lens moving apparatus according to claim 15 , wherein a distance from an optical axis to an extreme point of the curved part of the first connection portion is greater than a distance from the optical axis to the second coupling portion.
20. A camera module comprising:
the lens moving apparatus according to claim 1 ;
a lens barrel coupled to the bobbin of the lens moving apparatus;
an image sensor; and
a motion sensor.