Camera actuator and camera module comprising same

Patent metadata

Field	Value
Publication number	US-12585164-B2
Application number	US-202118017542-A
Country	US
Kind code	B2
Filing date	Jul 23, 2021
Priority date	Jul 23, 2020
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

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.

First claim

The invention claimed is:

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.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Sung Guk

Classifications

• H04N23/51

  Housings · CPC title

• H02K41/0354

  Lorentz force motors, e.g. voice coil motors · CPC title

• G03B2205/0023

  by tilting or inclining one or more optical elements with respect to the optical axis · CPC title

• G03B17/17

  with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera · CPC title

• H02K11/0141

  Shields associated with casings, enclosures or brackets · CPC title