Lens Moving Apparatus, Camera Module and Optical Appliance Including the Same

Patent metadata

Field	Value
Publication number	US-2017146813-A1
Application number	US-201715424235-A
Country	US
Kind code	A1
Filing date	Feb 3, 2017
Priority date	Mar 18, 2015
Publication date	May 25, 2017
Grant date	—

Abstract

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.

First claim

What is claimed is:

1 . A lens moving apparatus comprising:
a bobbin configured to mount a lens; a housing accommodating the bobbin therein and including a first corner; 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; a base disposed under the second coil; an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing, wherein the upper elastic member comprises an outer frame; and a support member supporting the housing, wherein the support member comprises a first wire connected to the upper elastic member, wherein the first corner is disposed on a first quadrant of xy plane of xyz coordinate system, and a z-axis of the xyz coordinate system is an optical axis of the lens, wherein the outer frame of the upper elastic member comprises a first outer frame and a second outer frame separated from the first outer frame, and the first outer frame and the second outer frame are disposed on the first quadrant, wherein the first outer frame including: a first coupling portion coupled to the housing; a second coupling portion disposed on the first corner of the housing and coupled to the first wire, wherein the second coupling portion is spaced away from the second outer frame; and a first connection portion connecting the first coupling portion and the second coupling portion, wherein the first connection portion includes a first bent portion or a first curved portion.

2 . The lens moving apparatus according to claim 1 , wherein the first connection portion and the second coupling portion distribute a stress applied to the upper elastic member and the support member.

3 . The lens moving apparatus according to claim wherein the first outer frame has the first connection portion which is single.

4 . The lens moving apparatus according to claim 1 , wherein the second outer frame includes a third coupling portion coupled to the housing.

5 . The lens moving apparatus according to claim 4 , wherein the support member further comprises a second wire spaced away from the first wire and disposed on the first corner, and
wherein the second outer frame further includes a fourth coupling portion coupled to the second wire, and a second connection portion connecting the third coupling portion and the fourth coupling portion.

6 . The lens moving apparatus according to claim 1 , wherein the first coupling portion includes a first coupling region and a second coupling portion coupled to the upper portion of the housing, and
wherein the first coupling region is closer to a reference line than the second coupling region, and the reference line is a straight line passing through a center of the bobbin and the first corner of the housing.

7 . The lens moving apparatus according to claim 4 , wherein the third coupling portion includes a third coupling region and a fourth coupling region coupled to the upper portion of the housing, and
wherein the third coupling region is closer to a reference line than the fourth coupling region, and the reference line is a straight line passing through a center of the bobbin and the first corner of the housing.

8 . The lens moving apparatus according to claim 1 , wherein the upper elastic member further comprises an inner frame coupled to the bobbin, and a frame connection portion connecting the inner frame and the first coupling portion.

9 . The lens moving apparatus according to claim 6 , wherein the housing includes a first upper support boss and a second upper support boss,
wherein the first coupling portion includes a first through-hole coupled to the first upper support boss and a second through-hole coupled to the second upper support boss, wherein the first coupling region is a portion which the first upper support boss and the first through-hole are coupled each other, and wherein the second coupling region is a portion which the second upper support boss and the second through-hole are coupled each other.

10 . The lens moving apparatus according to claim 7 , wherein the housing further includes a third upper support boss and a fourth upper support boss,
wherein the third coupling portion includes a third through-hole coupled to the third upper support boss and a fourth through-hole coupled to the fourth upper support boss, wherein the third coupling region is a portion which the third upper support boss and the third through-hole are coupled each other, and wherein the fourth coupling region is a portion which the fourth upper support boss and the fourth through-hole are coupled each other.

11 . The lens moving apparatus according to claim 5 , further comprises a circuit board disposed under the second coil and including a first terminal and a second terminal,
wherein the first wire is electrically connected between the first terminal and the second coupling portion, and the second wire is electrically connected between the second terminal and the fourth coupling portion.

12 . The lens moving apparatus according to claim 1 , further comprising a position sensor disposed on a first load recess provided on an upper surface of the base.

13 . The lens moving apparatus according to claim 5 , wherein the second connection portion includes a second bent portion or a second curved portion.

14 . A lens moving apparatus comprising:
a bobbin configured to mount a lens; a housing accommodating the bobbin therein and including a first corner; 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; a base disposed under the second coil; an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing, wherein the upper elastic member comprises an outer frame; and a support member supporting the housing, wherein the support member comprises a first wire and a second wire, wherein the outer frame of the upper elastic member comprises a first outer frame and a second outer frame separated from each other, wherein the first outer frame comprises: a first coupling portion coupled to the housing; a second coupling portion disposed on the first corner of the housing and coupled to the first wire, wherein the second coupling portion is spaced away from the second outer frame; and, a first connection portion connecting the first coupling portion and the second coupling portion, wherein the second outer frame comprises: a third coupling portion coupled to the housing; a fourth coupling portion disposed on the first corner of the housing and coupled to the second wire; and a second connection portion connecting the third coupling portion and the fourth coupling portion, and wherein each of the first connection portion and the second connection portion includes a bent portion or a curved portion.

15 . The lens moving apparatus according to claim 14 , further comprises a circuit board including:
a first terminal electrically connected to the first wire; and a second terminal electrically connected to the second wire.

16 . The lens moving apparatus according to claim 14 , wherein the first corner of the housing is disposed on a first quadrant of xy plane of xyz coordinate system, and z-axis of the xyz coordinate system is an optical axis of the lens, and
wherein the first outer frame and the second outer frame is disposed on the upper portion of the housing in the first quadrant.

17 . The lens moving apparatus according to claim 14 , wherein

Assignees

• Lg Innotek Co Ltd

Inventors

• Park Sang Ok
• Min Sang Jun

Classifications

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• G03B3/10

  Power-operated focusing · CPC title

• H04M1/0264

  for a camera module assembly · CPC title

• H02K33/18

  with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets · CPC title

• G03B2205/0007

  Movement of one or more optical elements for control of motion blur · CPC title