Lens driving motor and elastic member of the same

Patent metadata

Field	Value
Publication number	US-2016116702-A1
Application number	US-201514986134-A
Country	US
Kind code	A1
Filing date	Dec 31, 2015
Priority date	Dec 2, 2005
Publication date	Apr 28, 2016
Grant date	—

Abstract

Provided are a lens driving motor and an elastic member of the lens driving motor. The elastic member of a lens driving motor, the elastic member includes a first spring and a second spring. The second spring is different from the first spring and disposed together with the first spring on one side of a carrier to support the carrier. A first lead line of a coil and a first external power source are connected to the first spring, and a second lead line of the coil and a second external power source are connected to the second spring to supply power to the coil. Since the carrier can be assembled to other part after a (+) lead line and a (−) lead line of the coil are connected to the first and second springs, respectively, using solder, a process is simple and convenient.

First claim

What is claimed is:

1 . A motor for driving a lens, the motor comprising:
a base; a yoke disposed on the base; a carrier disposed in the yoke and configured to move in a vertical direction; a magnet disposed at an inner surface of the yoke; a coil disposed at an outer peripheral surface of the carrier while facing the magnet; an upper elastic member coupled to an upper portion of the carrier; and a lower elastic member coupled to a lower side portion of the carrier, wherein the lower elastic member comprise a first spring and a second spring separated from the first spring, and wherein the first spring and the second spring each comprises an outer section coupled to the base, an inner section coupled to the carrier, and a connection section connecting the inner section and the outer section.

2 . The motor according to claim 1 , wherein the first spring and the second spring are disposed on a same horizontal plane,
wherein a portion of the inner section of the first spring is coupled to a first end portion of the coil, the portion of the inner section of the first spring disposed between the coil and the magnet when viewed from the top, wherein a portion of the inner section of the second spring is coupled to a second end of the coil, the portion of the inner section of the second spring disposed between the coil and the magnet when viewed from the top, wherein the outer section of the first spring includes a first terminal configured to be connected to a first external power source, and wherein the outer section of the second spring includes a second terminal configured to be connected to a second external power source.

3 . The motor according to claim 2 , wherein the first terminal is adjacent to the second terminal.

4 . The motor according to claim 2 , wherein the first terminal and the second terminal are adjacent to a side surface of the base.

5 . The motor according to claim 2 , wherein the first terminal extends in a first outward direction, and
wherein the second terminal extends in a second outward direction.

6 . The motor according to claim 5 , wherein the first outward direction is the same as the second outward direction.

7 . The motor according to claim 2 , wherein the first terminal and the second terminal are both within a boundary of the base when viewed from the top, such that the first terminal and the second terminal are both within the boundary of the base in a horizontal direction.

8 . The motor according to claim 2 , wherein a first portion of the inner section of the first spring, including the portion that is coupled to the first end portion of the coil, is protruded from the inner section of the first spring toward the outer section of the first spring, and
wherein a second portion of the inner section of the second spring, including the portion that is coupled to the second end portion of the coil, is protruded from the inner section of the second spring toward the outer section of the second spring.

9 . The motor according to claim 2 , wherein a first portion of the inner section of the first spring, including the portion that is coupled to the first end portion of the coil, is extended in a first outward direction from the inner section of the first spring, and
wherein a second portion of the inner section of the second spring, including the portion that is coupled to the second end portion of the coil, is extended in a second outward direction from the inner section of the second spring.

10 . The motor according to claim 9 , wherein the first outward direction is the same as the second outward direction.

11 . The motor according to claim 2 , wherein a first portion of the inner section of the first spring, including the portion that is coupled to the first end portion of the coil, is protruded from an outer surface of the carrier toward the outer section of the first spring, and
wherein a second portion of the inner section of the second spring, including the portion that is coupled to the second end portion of the coil, is protruded from the outer surface of the carrier toward the outer section of the second spring.

12 . The motor according to claim 2 , wherein a portion of the connection section of the first spring is disposed between the coil and the magnet when viewed from the top, such that the portion of the connection section of the first spring is disposed between the coil and the magnet in a horizontal direction, and
wherein a portion of the connection section of the second spring is disposed between the coil and the magnet when viewed from the top.

13 . The motor according to claim 2 , wherein the inner section of the first spring and the inner section of the second spring are coupled to a lower portion of the carrier.

14 . The motor according to claim 2 , wherein a portion of the first spring is overlapped with a portion of the second spring in a radial direction.

15 . The motor according to claim 2 , further comprising a spacer disposed on an upper surface of the yoke or under a lower surface of the yoke.

16 . The motor according to claim 2 , wherein the first terminal and the second terminal are separated from each other by a predetermined distance.

17 . The motor according to claim 2 , wherein the inner section of the first spring includes a curved portion, and
wherein the inner section of the second spring includes a curved portion.

18 . The motor according to claim 2 , wherein the base includes a plate having an opening and a supporter protruded from a peripheral portion of the plate in a direction from the carrier to the base.

19 . A camera comprising a lens and the motor for driving the lens according to claim 1 .

20 . A digital apparatus comprising the camera according to claim 19 .

Assignees

• Lg Innotek Co Ltd

Inventors

• Jung Soo Jin

Classifications

• G02B7/023 Primary

  permitting adjustment · CPC title

• G02B7/026

  using retaining rings or springs (G02B7/027 takes precedence) · CPC title

• G02B7/08 Primary

  adapted to co-operate with a remote control mechanism · CPC title

• H02K33/02 Primary

  with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs · CPC title

• G02B7/04

  with mechanism for focusing or varying magnification · CPC title