Lens driving device, camera device, and optical apparatus including same

Patent metadata

Field	Value
Publication number	US-12302506-B2
Application number	US-202418412020-A
Country	US
Kind code	B2
Filing date	Jan 12, 2024
Priority date	May 29, 2018
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

A lend moving apparatus includes a circuit board including a mounting groove, an image sensor arranged within the mounting groove of the circuit board, and a first epoxy arranged within the mounting groove. The mounting groove includes a first side surface and a second side surface that face each other, and a third side surface and a fourth side surface that face each other. The circuit board includes at least one application groove provided on the first side surface and/or the second side surface of the mounting groove. The at least one application groove includes an opening opened toward the upper surface of the circuit board. At least a portion of the first epoxy is arranged in the at least one application groove.

First claim

What is claimed is:

1. A lens moving apparatus comprising:
a base;
a circuit board disposed on the base;
a coil board disposed on the circuit board and comprising a first bore and a second coil;
a housing disposed on the coil board;
a bobbin disposed in the housing;
a first magnet disposed at the housing so as to be opposite to the second coil in an optical axis direction; and
a conductive adhesive member connecting the coil board and the circuit board,
wherein the coil board comprises a terminal disposed to contact an inner circumferential surface thereof, and the circuit board comprises a pad disposed to contact an inner circumferential surface thereof, and
wherein the conductive adhesive member connects the terminal of the coil board and the pad of the circuit board.

2. The lens moving apparatus according to claim 1 , wherein the terminal of the coil board comprise a side surface exposed to the inner circumferential surface of the coil board.

3. The lens moving apparatus according to claim 1 , wherein the circuit board comprises a second bore corresponding to the first bore, and the pad of the circuit board comprises a side surface exposed to the inner circumferential surface of the circuit board.

4. The lens moving apparatus according to claim 2 , wherein the conductive adhesive member contacts the exposed side surface of the terminal of the coil board and the pad of the circuit board.

5. The lens moving apparatus according to claim 3 , wherein a diameter of the first bore is smaller than a diameter of the second bore.

6. The lens moving apparatus according to claim 1 , wherein a groove is formed in the inner circumferential surface of the circuit board, and the pad of the circuit board comprises a portion formed in the groove.

7. The lens moving apparatus according to claim 1 , wherein the exposed side surface of the terminal of the coil board forms the same surface as the inner circumferential surface of the coil board.

8. The lens moving apparatus according to claim 1 , wherein the terminal of the coil board is exposed from a lower surface of the coil board.

9. The lens moving apparatus according to claim 1 , wherein at least a portion of the terminal of the coil board overlaps the pad of the circuit board in the optical axis direction.

10. The lens moving apparatus according to claim 1 , wherein the pad of the circuit board comprises a first portion exposed to an upper surface of the circuit board.

11. The lens moving apparatus according to claim 10 , wherein the pad of the circuit board comprises a second portion exposed to a lower surface of the circuit board and a third portion connecting the first portion and the second portion.

12. The lens moving apparatus according to claim 1 , wherein the terminal of the coil board comprises a plurality of terminals spaced apart from each other, and the pad of the circuit board comprises a plurality of pads corresponding to the plurality of terminals, and
wherein the conductive adhesive member comprises a plurality of conductive adhesive members connecting the plurality of terminals and the plurality of pads.

13. The lens moving apparatus according to claim 1 , further comprising a first coil disposed on the bobbin,
wherein the bobbin is configured to move in the optical axis direction by an interaction between the first coil and the first magnet, and
wherein the housing is configured to move in a direction perpendicular to the optical axis direction by an interaction between the second coil and the first magnet.

14. The lens moving apparatus according to claim 1 , further comprising:
an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing; and
a support member coupled to the upper elastic member and electrically connected to the circuit board.

15. The lens moving apparatus according to claim 1 , wherein the second coil is disposed between the first bore of the coil board and an outer circumferential surface of the coil board.

16. The lens moving apparatus according to claim 1 , further comprising first and second sensors electrically connected to the circuit board and configured to detect a displacement of the housing.

17. A lens moving apparatus comprising:
a base;
a circuit board disposed on the base and comprising a first bore;
a coil board disposed on the circuit board and comprising a second bore corresponding to the first bore and a second coil;
a housing disposed on the coil board;
a bobbin disposed in the housing;
a first magnet disposed at the housing so as to be opposite to the second coil in an optical axis direction; and
a conductive adhesive member connecting the coil board and the circuit board,
wherein the coil board comprises a terminal having a side surface exposed to an inner circumferential surface thereof, and the circuit board comprises a pad including a first portion exposed from an upper surface thereof, and
wherein the conductive adhesive member connects the terminal of the coil board and the pad of the circuit board.

18. The lens moving apparatus according to claim 17 , further comprising:
a first coil disposed on the bobbin;
an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing; and
a support member coupled to the upper elastic member and electrically connected to the circuit board,
wherein the bobbin is configured to move in the optical axis direction by an interaction between the first coil and the first magnet, and
wherein the housing is configured to move in a direction perpendicular to the optical axis direction by an interaction between the second coil and the first magnet.

19. A camera module comprising:
a lens;
the lens moving apparatus according to claim 1 ; and
an image sensor.

20. A portable terminal comprising:
a wireless communicator;
a display;
an input and output unit for generating data to control the terminal; and
a lens moving apparatus including:
a base;
a circuit board disposed on the base;
a coil board disposed on the circuit board and comprising a first bore and a second coil;
a housing disposed on the coil board;
a bobbin disposed in the housing;
a first magnet disposed at the housing so as to be opposite to the second coil in an optical axis direction; and
a conductive adhesive member connecting the coil board and the circuit board,

wherein the coil board comprises a terminal disposed to contact an inner circumferential surface thereof, and the circuit board comprises a pad disposed to contact an inner circumferential surface thereof, and
wherein the conductive adhesive member connects the terminal of the coil board and the pad of the circuit board.

Assignees

• Lg Innotek Co Ltd

Inventors

• Kim Do Yun
• Lee Seong Min
• Kim Eun Mi
• Park Sang Ok

Classifications

• H04N23/60

  Control of cameras or camera modules · CPC title

• H04N23/54

  Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title

• H05K1/11

  Printed elements for providing electric connections to or between printed circuits · CPC title

• G03B17/12

  with means for supporting objectives, supplementary lenses, filters, masks, or turrets · CPC title

• G02B7/02 Primary

  for lenses {(supports for magnifying lenses G02B25/002)} · CPC title