CN-119213779-B - Driving device and camera module

Abstract

The application discloses a driving device and an image pickup module, wherein the driving device comprises a base, a chip anti-shake part, an anti-shake driving part and a lens focusing part, wherein the chip anti-shake part comprises an anti-shake movable part, the anti-shake driving part comprises a plurality of anti-shake magnets and a plurality of anti-shake coils, the anti-shake magnets are arranged on the base, the anti-shake coils are arranged on the anti-shake movable part, the lens focusing part comprises a focusing movable part, the focusing driving part comprises a focusing magnet and a focusing coil, the focusing magnet is arranged on the base, the focusing coil is arranged on the focusing movable part, at least one of the anti-shake magnets extends to the object side to form a shared magnet with the focusing magnet, a focusing magnetic attraction component is arranged on the focusing movable part, and a focusing support component is arranged on one of the peripheral sides of the focusing movable part, wherein the focusing support component and the shared magnet are positioned on the different sides of the focusing movable part.

Inventors

• ZHAO BOJIE
• Wei Hangang
• JIANG YAOQING
• WANG QIN

Assignees

• 宁波舜宇光电信息有限公司

Dates

Publication Date

20260508

Application Date

20230530

Priority Date

20220531

Claims (20)

1. 1. A driving device, characterized by comprising: A base; a chip anti-shake portion, comprising: an anti-shake movable portion provided on an image side of the base; an anti-shake driving part including a plurality of anti-shake magnets and a plurality of anti-shake coils, the plurality of anti-shake magnets being disposed opposite to the plurality of anti-shake coils, the plurality of anti-shake magnets being disposed at the base, the plurality of anti-shake coils being disposed at the anti-shake movable part, and A lens focusing section comprising: a focusing movable part provided on an object side of the base, the focusing movable part having a peripheral side located between an image side and the object side of the focusing movable part; A focusing driving part including a focusing magnet and a focusing coil, the focusing magnet being disposed opposite to the focusing coil, the focusing magnet being disposed on the base, the focusing coil being disposed on the focusing movable part, wherein at least one of the plurality of anti-shake magnets extends toward the object side to form a common magnet with the focusing magnet, and A focusing magnetic attraction member provided to the focusing movable portion, the focusing magnetic attraction member and the common magnet attracting each other in a horizontal direction; And a focus support member provided on one of the peripheral sides of the focus movable portion, wherein the focus support member and the common magnet are located on the opposite side of the focus movable portion, and the focus support member is sandwiched between the focus movable portion and the base by the focus magnet member.
2. 2. The driving device according to claim 1, wherein the common magnet and the focusing magnetic attraction member are located on the same side of the focusing movable part, and the focusing magnetic attraction member and the focusing support member are located on different sides of the focusing movable part.
3. 3. The driving device according to claim 2, wherein the peripheral side of the focus movable portion includes a first side, a second side, a third side, and a fourth side that are sequentially provided in a clockwise direction, the focus magnetically attractive member is provided to the first side of the focus movable portion, and the focus support member is provided to the second side and the fourth side of the focus movable portion.
4. 4. A driving device according to claim 3, wherein the focusing coil and the common magnet are disposed opposite to each other in a horizontal direction, the anti-shake coil and the common magnet are disposed opposite to each other in a height direction, and the common magnet interacts with the focusing coil and the anti-shake coil, respectively, to drive the focusing carrier and the anti-shake movable carrier to move relative to the base.
5. 5. The driving device according to claim 4, wherein the focus support member includes a first ball mounting portion provided to the focus carrier, a second ball mounting portion provided to the base, and a focus ball sandwiched between the first ball mounting portion and the second ball mounting portion.
6. 6. The driving device according to claim 5, wherein the first ball mounting portion has an opening facing the common magnet, the second ball mounting portion has an opening facing away from the common magnet, and the focusing ball is sandwiched between the opening of the first ball mounting portion and the opening of the second ball mounting portion by the focusing magnetic member.
7. 7. The driving device according to claim 6, wherein the number of the first ball mounting portions is two, the number of the second ball mounting portions is two, and two of the first ball mounting portions and two of the second ball mounting portions are provided on the second side and the fourth side of the focusing movable portion, respectively.
8. 8. The drive device according to claim 7, wherein the plurality of anti-shake magnets further include other magnets than the common magnet, and a height of the common magnet is higher than a height of the other magnets.
9. 9. The drive device according to claim 8, wherein a projected area of the common magnet in the height direction is smaller than a projected area of the other magnets in the height direction.
10. 10. A camera module, comprising: a photosensitive assembly; an optical lens held on a photosensitive path of the photosensitive assembly, and A drive arrangement as claimed in any one of claims 1 to 9, wherein the drive arrangement is adapted to drive the photosensitive assembly and the optical lens.
11. 11. A driving device, characterized by comprising: A base; A lens focusing section comprising: a focusing movable part provided on an object side of the base, the focusing movable part having a peripheral side located between an image side and the object side of the focusing movable part; A focus driving section including a focus magnet and a focus coil, the focus magnet being disposed opposite to the focus coil, the focus magnet being disposed at the base, the focus coil being disposed at the focus movable section; a focusing magnetic attraction member provided on one of the peripheral sides of the focusing movable portion, the focusing magnetic attraction member and the focusing magnet attracting each other in a horizontal direction, and And a focus support member provided on one of the peripheral sides of the focus movable portion, wherein the focus support member and the focus magnet member are provided on the opposite side of the focus movable portion, and the focus support member is sandwiched between the focus movable portion and the base by the focus magnet member.
12. 12. The driving device according to claim 11, wherein the peripheral side of the focus movable portion includes a first side, a second side, a third side, and a fourth side that are sequentially provided in a clockwise direction, the focus magnetically attractive member is provided to the first side of the focus movable portion, and the focus support member is provided to the second side and the fourth side of the focus movable portion.
13. 13. The driving device according to claim 12, wherein the focus magnetically attractive member and the focus driving portion are provided on the same side of the peripheral sides of the focus movable portion, and the focus support member and the focus driving portion are provided on different sides of the peripheral sides of the focus movable portion.
14. 14. The driving device according to claim 13, wherein the focusing coil has a side close to the focusing magnet and a side distant from the focusing magnet, the focusing magnet member being provided at a side of the focusing coil distant from the focusing magnet, the focusing magnet member being provided opposite to the focusing magnet.
15. 15. The driving device according to claim 14, wherein the focus support member includes a first ball mounting portion provided to the focus carrier, a second ball mounting portion provided to the base, and a focus ball sandwiched between the first ball mounting portion and the second ball mounting portion.
16. 16. The drive device according to claim 15, wherein the first ball mounting portion has an opening toward the focusing magnetic attraction member, the second ball mounting portion has an opening facing away from the focusing magnetic attraction member, and the force between the focusing magnetic attraction member and the focusing magnet is such that the focusing ball is sandwiched between the opening of the first ball mounting portion and the opening of the second ball mounting portion.
17. 17. The drive device according to claim 16, wherein a height of the second ball mount is higher than a height of the first ball mount.
18. 18. The drive device according to claim 17, wherein a distance from the first ball mount to the focusing magnetically attractive member is greater than a distance from the second ball mount to the focusing magnetically attractive member.
19. 19. The driving device according to claim 11, wherein the driving device further comprises a chip anti-shake portion including an anti-shake movable portion provided on an image side of the base, and an anti-shake driving portion including a plurality of anti-shake magnets provided opposite to the plurality of anti-shake coils, the plurality of anti-shake magnets being provided on the base, the plurality of anti-shake coils being provided on the anti-shake movable portion, at least one of the plurality of anti-shake magnets extending toward an object side to form a common magnet with the focusing magnet.
20. 20. A camera module, comprising: a photosensitive assembly; an optical lens held on a photosensitive path of the photosensitive assembly, and A drive arrangement as claimed in any one of claims 11 to 19 wherein the drive arrangement is adapted to drive the photosensitive assembly and the optical lens.

Description

Driving device and camera module Technical Field The present application relates to the field of camera modules, and in particular, to a driving device and a camera module. Background With the popularity of mobile electronic devices, related technologies of camera modules applied to mobile electronic devices for helping users acquire images have been rapidly developed and advanced. Currently, in the market, consumers have increasingly high and diversified functions, such as a focusing function and an anti-shake function, of a camera module configured in a mobile electronic device (e.g., a smart phone). When the mobile electronic equipment is used for shooting objects with different distances, the driving device drives the optical lens to move along the optical axis, so that a focusing function is realized to realize clear shooting with different distances. And when the mobile electronic device is used for shooting, the shooting effect is reduced due to physiological tremble with a certain frequency and tremble generated by movement of a human body under normal conditions, so that the mobile electronic device is usually provided with an anti-tremble device to drive a lens or a photosensitive chip to move so as to realize an anti-tremble function. Various schemes have been applied to the implementation of the above functions of the camera module, wherein a major technical difficulty is that the complexity and size of the mechanism of the camera module are increased while the above functions are implemented, which is contrary to the trend of the mobile electronic device toward light weight and thin profile. Therefore, an optimized driving device and camera module are desired to satisfy a focusing function and/or an anti-shake function while the size is controlled to be small. Disclosure of Invention An object of the present application is to provide a driving device and an image capturing module, which overcome the shortcomings of the prior art, and the size of the image capturing module is controlled to be smaller while the focusing function and/or the anti-shake function of the image capturing module are satisfied. According to a first aspect of the present application, there is provided a driving apparatus comprising: A base; a chip anti-shake portion, comprising: an anti-shake movable portion provided on an image side of the base; an anti-shake driving part including a plurality of anti-shake magnets and a plurality of anti-shake coils, the plurality of anti-shake magnets being disposed opposite to the plurality of anti-shake coils, the plurality of anti-shake magnets being disposed at the base, the plurality of anti-shake coils being disposed at the anti-shake movable part, and A lens focusing section comprising: a focusing movable part provided on an object side of the base, the focusing movable part having a peripheral side located between an image side and the object side of the focusing movable part; A focus driving part including a focus magnet and a focus coil, the focus magnet being disposed opposite to the focus coil, the focus magnet being disposed at the base, the focus coil being disposed at the focus movable part, wherein at least one of the plurality of anti-shake magnets extends toward an object side to form a common magnet with the focus magnet; A focusing magnetic attraction member provided to the focusing movable portion, the focusing magnetic attraction member and the common magnet attracting each other in a horizontal direction, and And a focus support member provided on one of the peripheral sides of the focus movable portion, wherein the focus support member and the common magnet are located on the opposite side of the focus movable portion, and the focus support member is sandwiched between the focus movable portion and the base by the focus magnet member. In some embodiments, the common magnet and the focusing magnet are located on the same side of the focusing movable part, and the focusing magnet and the focusing support member are located on different sides of the focusing movable part. In some embodiments, wherein the peripheral side of the focus movable portion includes a first side, a second side, a third side, and a fourth side that are sequentially disposed in a clockwise direction, the focus magnetically attractive member is disposed at the first side of the focus movable portion, and the focus support member is disposed at the second side and the fourth side of the focus movable portion. In some embodiments, the focusing coil and the common magnet are arranged opposite to each other in a horizontal direction, the anti-shake coil and the common magnet are arranged opposite to each other in a height direction, and the common magnet interacts with the focusing coil and the anti-shake coil respectively to drive the focusing carrier and the anti-shake movable carrier to move relative to the base. In some embodiments, the focus support member includes a first ball mount, a secon