Camera actuator and camera module comprising same
Disclosed according to an embodiment of the present invention is a camera actuator comprising: a housing; a mover which is disposed in the housing; a tilting guide unit which is disposed between the housing and the mover; a driving unit which is disposed in the housing to drive the mover; an elastic member by which the tilting guide unit and the mover come into close contact with each other; and a damper member which is disposed between the elastic member and at least one of the mover and the housing.
1 . A camera actuator comprising:
a housing;
a mover disposed in the housing;
a tilting guide unit disposed between the housing and the mover;
a first member disposed outside the tilting guide unit, the first member being coupled to the mover;
a driving unit disposed in the housing and configured to drive the mover;
an elastic member that allows the tilting guide unit to be in close contact with the mover, the elastic member including:
a first bonding portion connected to the housing;
a second bonding portion connected to the first member; and
a connecting portion connecting the first bonding portion and the second bonding portion;
a damper member disposed between the elastic member and at least one of the mover and the housing; and
a second member, at least a portion of which is disposed between the tilting guide unit and the first member and coupled to the housing,
wherein the mover includes a seating groove configured to accommodate the tilting guide unit, and
wherein the first member and the second member are accommodated in the seating groove.
2 . The camera actuator of claim 1 , wherein the mover includes a plurality of mover protrusions protruding toward the elastic member, and
wherein the damper member is disposed in a mover groove positioned between the plurality of mover protrusions and is in contact with the mover.
3 . The camera actuator of claim 2 , wherein at least a portion of the connecting portion is disposed in the mover groove, and the connecting portion is in contact with the damper member.
4 . The camera actuator of claim 2 , wherein the plurality of mover protrusions include a first mover protrusion and a second mover protrusion disposed to be separated in a first direction,
wherein the connecting portion passes through the mover groove, and
wherein the mover groove is positioned between the first mover protrusion and the second mover protrusion.
5 . The camera actuator of claim 4 , wherein the plurality of mover protrusions include a third mover protrusion disposed inside the mover groove.
6 . The camera actuator of claim 5 , wherein a height of the third mover protrusion is smaller than a height of the first mover protrusion or the second mover protrusion.
7 . The camera actuator of claim 1 , wherein the first member includes a member protrusion disposed adjacent to the connecting portion.
8 . The camera actuator of claim 7 , wherein at least a portion of the member protrusion overlaps the connecting portion in an optical axis direction, and
wherein at least a portion of the connecting portion is curved to correspond to an outer surface of the member protrusion.
9 . The camera actuator of claim 7 , wherein the damper member is coupled to the member protrusion and the connecting portion.
10 . The camera actuator of claim 9 , wherein the member protrusion is positioned between the first bonding portion and the second bonding portion.
11 . The camera actuator of claim 10 , wherein the second member includes a housing protrusion disposed adjacent to the connecting portion.
12 . The camera actuator of claim 11 , wherein at least a portion of the housing protrusion overlaps the connecting portion in an optical axis direction.
13 . The camera actuator of claim 11 , wherein at least a portion of the connecting portion is curved to correspond to an outer surface of the housing protrusion.
14 . The camera actuator of claim 13 , wherein the damper member is coupled to the housing protrusion and the connecting portion.
15 . The camera actuator of claim 14 , wherein at least a portion of the housing protrusion overlaps the damper member in a first direction.
16 . The camera actuator of claim 1 , wherein the damper member is coupled to legs of the connecting portion.