Lens moving apparatus

Patent metadata

Field	Value
Publication number	US-12411353-B2
Application number	US-202217814059-A
Country	US
Kind code	B2
Filing date	Jul 21, 2022
Priority date	Oct 17, 2014
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

A lens moving apparatus includes a bobbin on which a first coil is disposed, a first magnet disposed around the bobbin to face the first coil, and a housing, which is disposed to surround at least a portion of the bobbin and has a first magnet mounting seat, which receives the first magnet, wherein the housing is provided with an adhesive inlet, which allows a side portion of the first magnet mounting seat to communicate with an outside surface of the housing.

First claim

What is claimed is:

1. A lens moving apparatus comprising:
a base;
a circuit board disposed on the base and comprising a terminal portion disposed on an outer side surface of the base;
a bobbin disposed above the base and configured to move in an optical axis direction;
a cover member comprising an upper plate and a side plate connecting the upper plate and configured to accommodate the bobbin and at least a portion of the circuit board; and
a first adhesive bonding the base, the circuit board, and the cover member,
wherein the terminal portion of the circuit board comprises a curved surface formed at a side of an upper portion thereof, and the curved surface is recessed away from a portion of the outer side surface of the base,
wherein a first recess is formed and is surrounded by the side plate of the cover member, the curved surface of the terminal portion of the circuit board, and the portion of the outer side surface of the base, and
wherein the base comprises a protrusion formed on the portion of the outer side surface of the base, and the first adhesive is disposed in the first recess.

2. The lens moving apparatus according to claim 1 , wherein a first gap exists between the terminal portion of the circuit board and the protrusion of the base, and a portion of the first adhesive is disposed in the first gap.

3. The lens moving apparatus according to claim 1 , wherein a second gap exists between the side plate of the cover member and the protrusion of the base, and a portion of the first adhesive is disposed in the second gap.

4. The lens moving apparatus according to claim 1 , wherein a third gap exists between the end of the base and the protrusion of the base, and a portion of the first adhesive is disposed in the third gap.

5. The lens moving apparatus according to claim 1 , wherein a first gap exists between the terminal portion of the circuit board and the protrusion of the base, and wherein a second gap exists between the side plate of the cover member and the protrusion of base, and a third gap exists between the end of the base and the protrusion of the base, and a portion of the first adhesive is disposed in the third gap, and
wherein the first adhesive is disposed in the first to third gaps.

6. The lens moving apparatus according to claim 1 , wherein the first recess is formed at each of both sides of the terminal portion of the circuit board.

7. The lens moving apparatus according to claim 1 , wherein the first recess is open at a front side thereof and closed at a rear side thereof by an outer side surface of the base.

8. The lens moving apparatus according to claim 1 , wherein the terminal portion of the circuit board comprises a plurality of terminals.

9. The lens moving apparatus according to claim 1 , wherein the base comprises a second recess in a portion of a bottom surface thereof for applying a second adhesive for bonding the circuit board to the base.

10. The lens moving apparatus according to claim 9 , wherein the base has a square shape contour and the second recess is provided at each side of the bottom surface of the base.

11. The lens moving apparatus according to claim 1 , wherein the base comprises a support recess formed in the outer side surface thereof, and the terminal portion of the circuit board is disposed in the support recess.

12. The lens moving apparatus according to claim 1 , comprising:
a housing disposed above the circuit board and configured to accommodate the bobbin;
a magnet disposed on the housing;
a first coil disposed on the bobbin and configured to move the bobbin in the optical axis direction by an interaction with the magnet.

13. The lens moving apparatus according to claim 12 , comprising:
an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing;
a second coil configured to move the housing by an interaction with the magnet; and
a support member electrically connecting the upper elastic member and the circuit board.

14. The lens moving apparatus according to claim 13 , wherein the second coil is electrically connected to the circuit board.

15. A lens moving apparatus comprising:
a base;
a circuit board disposed on the base and comprising a terminal portion disposed on an outer side surface of the base and a terminal disposed on the terminal portion;
a bobbin disposed above the circuit board and configured to move in an optical axis direction;
a cover member comprising an upper plate and a side plate connecting the upper plate and configured to accommodate the bobbin and at least a portion of the circuit board; and
a first adhesive bonding the base, the circuit board, and the cover member,
wherein the terminal portion of the circuit board comprises a curved surface formed at a side of an upper portion thereof, and the curved surface is recessed away from a portion of the outer side surface of the base,
wherein a first recess is formed and is surrounded by one end of the side plate of the cover member, the curved surface of the terminal portion of the circuit board, and the portion of the outer side surface of the base,
wherein the base comprises a protrusion formed on the portion of the outer side surface of the base,
wherein a first gap is formed between the one end of the terminal portion of the circuit board and the protrusion of the base, and
wherein a first portion of the first adhesive is disposed in the first gap.

16. The lens moving apparatus according to claim 15 , wherein a second gap is formed between the one end of the side plate of the cover member and the protrusion of the base, and
wherein a second portion of the first adhesive is disposed in the second gap.

17. The lens moving apparatus according to claim 15 , wherein a third gap is formed between the one end of the base and the protrusion of the base, and
wherein a third portion of the first adhesive is disposed in the third gap.

18. The lens moving apparatus according to claim 15 , comprising:
a housing disposed above the circuit board and configured to accommodate the bobbin;
a magnet disposed on the housing;
a first coil disposed on the bobbin and configured to move the bobbin in the optical axis direction by an interaction with the magnet;
an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing;
a second coil configured to move the housing by an interaction with the magnet; and
a support member electrically connecting the upper elastic member and the circuit board.

19. The lens moving apparatus according to claim 15 , wherein the base comprises a second recess formed in a portion of a bottom surface of the base, and the second recess is for applying a second adhesive for bonding the circuit board to base.

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

Assignees

• Lg Innotek Co Ltd

Inventors

• Cho Jae Hong
• Shin Seung Taek
• Yeo In Jae
• Lee Sang Hee
• Han Jin Suk
• Kim Jung Cheol

Classifications

• G03B2205/0007

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

• G03B2205/0069

  using electromagnetic actuators, e.g. voice coils · CPC title

• G03B3/10 Primary

  Power-operated focusing · CPC title

• G03B5/00

  Adjustment of optical system relative to image or object surface other than for focusing · CPC title

• G02B7/09 Primary

  adapted for automatic focusing or varying magnification · CPC title