CN116055833A

CN116055833A - Driving assembly and camera module

Info

Publication number: CN116055833A
Application number: CN202111267254.6A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2023-05-02

Abstract

The invention discloses a driving assembly and an image pickup module, wherein the driving assembly comprises an anti-shake fixing part, an anti-shake movable part and an anti-shake driving part, wherein the anti-shake fixing part is provided with an accommodating cavity and a top opening communicated with the accommodating cavity, the anti-shake movable part is suspended in the accommodating cavity of the anti-shake fixing part, the anti-shake driving part comprises a plurality of anti-shake magnets and a plurality of anti-shake coils which are oppositely arranged, the anti-shake magnets are arranged on one of the anti-shake fixing part and the anti-shake movable part, the anti-shake coils are arranged on the other one of the anti-shake fixing part and the anti-shake movable part, the anti-shake coils form a first coil group, a second coil group and a third coil group, the first coil group is arranged at two opposite sides along the Y axis direction, and the second coil group and the third coil group are arranged at four corners along the X axis direction.

Description

Driving assembly and camera module

Technical Field

The present invention relates to optical imaging devices, and more particularly to a driving assembly and an image capturing module.

Background

With the continuous development of technology, portable electronic devices such as smartphones have replaced digital cameras to become the first choice for taking photos or videos in daily life, and in this context, consumers have put higher demands on the quality of taking photos of the portable electronic devices. When a consumer shoots by using a portable electronic device, a handheld mode is generally adopted, that is, the consumer shoots a photo or a video by using a shooting module arranged on the portable electronic device by holding the portable electronic device, the common consumer easily shakes the portable electronic device due to shake of arms or hands when shooting by holding the portable electronic device due to lack of professional training, and the shake of the portable electronic device can be fed back to an image shot by the shooting module to cause the problem of blurred shot pictures, so that how to solve the shake problem of the common consumer when shooting by using the portable electronic device is the research direction of the industry.

Disclosure of Invention

An objective of the present invention is to provide a driving assembly and an image capturing module, wherein an anti-shake driving portion of the driving assembly can drive an anti-shake movable portion to perform translational and/or rotational movement relative to an anti-shake fixing portion, so as to implement an anti-shake function of the image capturing module.

An object of the present invention is to provide a driving assembly and an image capturing module, wherein the anti-shake driving portion drives the anti-shake movable portion to perform a translational and/or rotational motion relative to the anti-shake fixing portion through a plurality of anti-shake coils and a plurality of anti-shake magnets disposed opposite to each other.

An object of the present invention is to provide a driving assembly and an image capturing module, wherein the anti-shake coils form a first coil set, a second coil set and a third coil set, the first coil set is configured to drive the anti-shake movable portion to translate in an X-axis direction to realize translational anti-shake, and the second coil set and the third coil set are configured to drive the anti-shake movable portion to translate in a Y-axis direction to realize translational anti-shake and drive the anti-shake movable portion to rotate around a Z-axis direction to realize rotational anti-shake.

An object of the present invention is to provide a driving assembly and an image pickup module, in which the geometric centers of the two anti-shake coils constituting the first coil group are identical to the centers of the anti-shake driving sections, in such a manner that the two anti-shake coils are reasonably still located at the centers of the anti-shake driving sections, so as to avoid unnecessary torque.

An object of the present invention is to provide a driving assembly and an image capturing module, in which a distance between the second coil set and the third coil set with respect to a center of the anti-shake driving portion is greater than a distance between the first coil set and the center of the anti-shake driving portion, so that the second coil set and the third coil set can more easily drive the anti-shake movable portion to perform a rotational motion with respect to the anti-shake driving portion.

An object of the present invention is to provide a driving assembly and an image capturing module, in which two anti-shake coils forming the first coil set have a larger size, so that the anti-shake driving portion can be ensured to provide a larger driving force to push the anti-shake movable portion to translate in the X-axis direction.

According to one aspect of the present invention, there is provided a driving assembly comprising:

the anti-shake fixing part is provided with an accommodating cavity and a top opening communicated with the accommodating cavity;

an anti-shake movable part suspended in the accommodation cavity of the anti-shake fixing part; and

an anti-shake driving part, wherein the anti-shake driving part comprises a plurality of anti-shake magnets and a plurality of anti-shake coils which are oppositely arranged, wherein the anti-shake magnets are arranged on one of the anti-shake fixing part and the anti-shake movable part, the anti-shake coils are arranged on the other one of the anti-shake fixing part and the anti-shake movable part, the anti-shake coils form a first coil group, a second coil group and a third coil group, the first coil group is arranged at two opposite sides along the Y-axis direction, and the second coil group and the third coil group are arranged at four corners along the X-axis direction.

According to an embodiment of the present invention, the geometric center of the two anti-shake coils constituting the first coil group coincides with the center of the anti-shake driving section.

According to an embodiment of the present invention, the size of the two anti-shake coils constituting the first coil group is larger than the size of the two anti-shake coils constituting the second coil group, and the size of the two anti-shake coils constituting the first coil group is larger than the size of the two anti-shake coils constituting the third coil group.

According to an embodiment of the present invention, the sizes of the two anti-shake coils constituting the second coil group and the sizes of the two anti-shake coils constituting the third coil group are identical.

According to an embodiment of the present invention, two of the anti-shake coils constituting the first coil group are defined as a first coil and a second coil, two of the anti-shake coils constituting the second coil group are defined as a third coil and a fourth coil, two of the anti-shake coils constituting the third coil group are defined as a fifth coil and a sixth coil, wherein the first coil and the second coil are disposed at opposite sides in the Y direction, the third coil, the fourth coil, the fifth coil and the sixth coil are disposed at four corners in the X direction, the first coil is disposed adjacent to the third coil and the fourth coil, respectively, and the first coil is perpendicular to the third coil and the fourth coil, respectively, the second coil is disposed adjacent to the fifth coil and the sixth coil, respectively, and the second coil is perpendicular to the fifth coil and the sixth coil, respectively.

According to an embodiment of the present invention, a line connecting a center of the first coil and a center of the second coil passes through a center of the anti-shake driving section and is parallel to an X-axis direction.

According to an embodiment of the present invention, a line connecting a center of the first coil and a center of the second coil passes through the center of the anti-shake driving section and is the same as an X-axis direction, and a distance from the center of the first coil to the X-axis is the same as a distance from the center of the second coil to the X-axis.

According to an embodiment of the present invention, the anti-shake magnets of the anti-shake driving section are respectively provided to the anti-shake fixing sections, and the anti-shake coils are respectively provided to the anti-shake movable sections.

According to an embodiment of the present invention, the anti-shake magnets of the anti-shake driving section are respectively provided to the anti-shake movable section, and the anti-shake coils are respectively provided to the anti-shake fixing section.

According to an embodiment of the present invention, the anti-shake movable portion includes a movable carrier and a set of balls rollably disposed between the movable carrier and the anti-shake fixing portion.

According to one embodiment of the present invention, the anti-shake movable portion includes an electrical connection portion, wherein the anti-shake coil is connected to the electrical connection portion, and the electrical connection portion is fixed to the movable carrier.

According to one embodiment of the present invention, the driving assembly further includes an electric connection part having a connection part opening, wherein the electric connection part is fixed to the anti-shake fixing part, and the connection part opening of the electric connection part and the top opening of the anti-shake fixing part correspond to and communicate with each other, wherein the anti-shake coil is connected to the electric connection part.

According to one embodiment of the present invention, the driving assembly further includes at least one magnetic attraction member, wherein the magnetic attraction member is disposed on the movable carrier, and a position of the magnetic attraction member corresponds to a position of the anti-shake magnet to generate a magnetic attraction force therebetween in a height direction.

According to one embodiment of the present invention, the driving assembly further includes at least one magnetic attraction member, wherein the magnetic attraction member is disposed at the electric connection portion or the magnetic attraction member is disposed between the electric connection portion and the movable carrier, and a position of the magnetic attraction member corresponds to a position of the anti-shake magnet to generate a magnetic attraction force in a height direction therebetween.

According to an embodiment of the present invention, the anti-shake movable portion includes a movable carrier and a set of balls rollably disposed between the movable carrier and the anti-shake fixing portion, wherein the driving assembly further includes at least one magnetic attraction member disposed at the anti-shake fixing portion or the magnetic attraction member is disposed at the electric connection portion or the magnetic attraction member is disposed between the anti-shake fixing portion and the electric connection portion, and a position of the magnetic attraction member corresponds to a position of the anti-shake magnet to generate a magnetic attraction force in a height direction therebetween.

According to another aspect of the present invention, the present invention further provides an image capturing module, which includes:

a photosensitive component;

a lens assembly, wherein the lens assembly comprises an optical lens, the optical lens being held in a photosensitive path of the photosensitive assembly; and

a drive assembly, wherein the drive assembly further comprises:

an anti-shake driving section, wherein the anti-shake driving section includes a plurality of anti-shake magnets and a plurality of anti-shake coils that are disposed opposite to each other, wherein the anti-shake magnets are disposed at one of the anti-shake fixing section and the anti-shake movable section, the anti-shake coils are disposed at the other of the anti-shake fixing section and the anti-shake movable section, wherein the anti-shake coils form a first coil group, a second coil group, and a third coil group, the first coil group is disposed at opposite sides in a Y-axis direction, and the second coil group and the third coil group are disposed at four corners in an X-axis direction; wherein the photosensitive assembly is disposed at the anti-shake movable portion, and wherein the top opening of the anti-shake fixing portion corresponds to the photosensitive assembly.

Drawings

FIG. 1 is a schematic cross-sectional view of an image capturing module according to a preferred embodiment of the present invention.

Fig. 2 shows a perspective view of a driving assembly of the camera module.

Fig. 3A and 3B show exploded views of the drive assembly of the camera module, respectively, from different perspectives.

Fig. 4A and 4B show cross-sectional views of different positions of the drive assembly of the camera module, respectively.

Fig. 5 is a perspective view showing a partial structure of the driving assembly of the camera module.

Fig. 6 shows a top view of a partial structure of the driving assembly of the camera module.

Fig. 7 shows a top view of a partial structure of a modified example of the driving assembly of the camera module.

Fig. 8A and 8B show exploded views of different views of another drive assembly of the camera module, respectively.

Fig. 9A and 9B show cross-sectional views of different positions of the drive assembly of the camera module, respectively.

Fig. 10 shows a cross-sectional view of a modified example of the driving assembly of the camera module.

Fig. 11 shows an exploded view of another modified example of the driving assembly of the camera module.

Fig. 12 shows an exploded view of another modified example of the driving assembly of the camera module.

Fig. 13 shows an exploded view of another modified example of the driving assembly of the camera module.

Fig. 14A shows the current direction and the force direction when an anti-shake movable portion of the driving assembly of the camera module translates in the X-axis direction.

FIG. 14B is a schematic cross-sectional view of the A-A position of FIG. 14A.

Fig. 15A shows a current direction and a force direction when the anti-shake movable portion of the driving assembly of the camera module translates in the Y-axis direction.

FIG. 15B is a schematic cross-sectional view of the B-B position of FIG. 15A.

Fig. 16A shows a current direction and a force receiving direction when the anti-shake movable portion of the driving assembly of the camera module rotates in the Z-axis direction.

FIG. 16B is a schematic cross-sectional view of the B-B position of FIG. 16A.

Detailed Description

Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Furthermore, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

Also, in the present disclosure, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus the above terms should not be construed as limiting the present disclosure; in a second aspect, the terms "a" and "an" should be understood as "at least one" or "one or more", i.e. in one embodiment the number of one element may be one, while in another embodiment the number of the element may be plural, the term "a" should not be construed as limiting the number.

Referring to fig. 1 to 6 of the drawings, a camera module according to a preferred embodiment of the present invention is disclosed and described in the following description, wherein the camera module includes a driving assembly 10, a lens assembly 20, and a photosensitive assembly 30.

Specifically, the driving assembly 10 includes an anti-shake fixing portion 11, an anti-shake movable portion 12, and an anti-shake driving portion 13. The anti-shake fixing portion 11 has a housing cavity 1101 and a top opening 1102 connected to the housing cavity 1101, wherein the photosensitive assembly 30 is disposed on the anti-shake movable portion 12, the anti-shake movable portion 12 is suspended in the housing cavity 1101 of the anti-shake fixing portion 11, and the top opening 1102 of the anti-shake fixing portion 11 corresponds to the photosensitive assembly 30, and the anti-shake driving portion 13 is configured to drive the anti-shake movable portion 12 to perform translational and/or rotational movement relative to the anti-shake fixing portion 11, so as to implement translational and/or rotational anti-shake of the camera module. Further, the anti-shake fixing portion 11 includes a base 111 and an upper cover 112, the top opening 1102 is formed in the upper cover 112, the base 111 and the upper cover 112 are snappingly mounted to form the receiving cavity 1101 between the base 111 and the upper cover 112, and the receiving cavity 1101 thus formed between the base 111 and the upper cover 112 communicates with the top opening 1102 formed in the upper cover 112.

The anti-shake movable portion 12 and the anti-shake driving portion 13 are respectively accommodated in the accommodating cavity 1101 of the anti-shake fixing portion 11, so that the anti-shake fixing portion 11 forms the appearance of the driving assembly 10, and in this way, on one hand, the anti-shake fixing portion 11 can prevent the anti-shake movable portion 12 and the anti-shake driving portion 13 from being collided, so as to play a role of protecting the anti-shake movable portion 12 and the anti-shake driving portion 13, and on the other hand, the base 111 and the upper cover 112 of the anti-shake fixing portion 11 cooperate with each other to form the closed accommodating cavity 1101, so as to prevent pollutants such as dust from entering the accommodating cavity 1101 of the anti-shake fixing portion 11 to pollute the photosensitive element 32 and reduce stray light.

Preferably, the materials of the base 111 and the upper cover 112 of the anti-shake fixing portion 11 may be metal materials to secure the strength of the driving assembly 10. For example, the materials of the base 111 and the upper cover 112 of the anti-shake fixing portion 11 may be stainless steel nonmagnetic materials.

It is understood that the base 111 and the upper cover 112 of the anti-shake fixing portion 11 remain stationary when the camera module performs an anti-shake function, so that the anti-shake fixing portion 11 forms a stator.

Referring to fig. 1, the lens assembly 20 includes a lens carrier 21 and an optical lens 22 disposed on the lens carrier 21, wherein the lens carrier 21 is attached to the upper cover 112 of the anti-shake fixing portion 11 to maintain the optical lens 22 on the photosensitive path of the photosensitive assembly 30, so that incident light can reach the photosensitive assembly 30 through the top opening 1102 of the anti-shake fixing portion 11 after being converged by the optical lens 22.

It should be noted that the type of the lens carrier 21 is not limited in the camera module of the present invention, for example, in the specific example of the camera module shown in fig. 1 to 6, the lens carrier 21 is a driving carrier for driving the optical lens 22 to move along the optical axis direction of the camera module to achieve zooming and/or focusing of the camera module, or for driving the optical lens 22 to translate to achieve anti-shake of the camera module. For example, the lens carrier 21 may drive the optical lens 22 by means of a coil and a magnet cooperating with each other. As another example, the lens carrier 21 may be, but is not limited to, a voice coil motor, a piezoelectric motor, a SMA (Shape Memory Alloy) motor. Alternatively, in some other specific examples of the image capturing module of the present invention, the lens carrier 21 may be a lens barrel for holding the optical lens 22 in the photosensitive path of the photosensitive assembly 30.

It should be noted that, in other specific examples of the image capturing module according to the present invention, the lens assembly 20 may be free of the lens carrier 21, and at this time, the optical lens 22 is directly attached to the upper cover 112 of the anti-shake fixing portion 11 and is held on the photosensitive path of the photosensitive assembly 30.

With continued reference to fig. 1 to 6, the photosensitive assembly 30 includes a circuit board 31 and a photosensitive element 32 connected to the circuit board 31, wherein the circuit board 31 is disposed on the anti-shake movable portion 12 to dispose the photosensitive assembly 30 on the anti-shake movable portion 12.

The photosensitive assembly 30 further includes a series of electronic components 33, which may be, but are not limited to, resistors, capacitors, processors, etc., wherein these electronic components 33 are mounted to the circuit board 31.

In addition, the photosensitive assembly 30 may also include a filter, such as an infrared cut filter, that is held in the photosensitive path of the photosensitive element 32.

Referring to fig. 1 to 3B, the circuit board 31 has two extension arms 311, and the two extension arms 311 extend to the outside of the anti-shake fixing portion 11 through the connection positions of the base 111 and the upper cover 112 at opposite sides of the circuit board 31 and further extend upwards, so that stability and resistance can be ensured and reduced when the anti-shake movable portion 12 is driven by the anti-shake driving portion 13 to perform translational and/or rotational movement in the receiving cavity 1101 of the anti-shake fixing portion 11. Alternatively, two of the extension arms 311 may extend to the outside of the anti-shake fixing portion 11 through the connection position of the base 111 and the upper cover 112 at the adjacent both sides of the circuit board 31 and further extend upward.

With continued reference to fig. 1 to 6, the anti-shake movable portion 12 includes a movable carrier 121 and a set of balls 122, wherein a set of balls 122 is rollably disposed between the movable carrier 121 and the upper cover 112, so that the anti-shake movable portion 12 and the anti-shake fixing portion 11 are in point friction contact, thereby ensuring that the anti-shake driving portion 13 smoothly drives the anti-shake movable portion 12 to perform translational and/or rotational movement with respect to the anti-shake fixing portion 11.

Specifically, the movable carrier 121 has a carrier front surface 1211, a carrier back surface 1212 opposite the carrier front surface 1211, and a carrier opening 1213 extending from the carrier front surface 1211 to the carrier back surface 1212. The circuit board 31 of the photosensitive assembly 30 is disposed on the carrier back 1212 of the movable carrier 121, and the photosensitive element 32 of the photosensitive assembly 30 corresponds to the carrier opening 1213 of the movable carrier 121, such that incident light is allowed to pass through the carrier opening 1213 of the movable carrier 121 to the photosensitive element 32.

The circuit board 31 of the photosensitive assembly 30 and the base 111 of the anti-shake fixing portion 11 have a gap therebetween, and a set of balls 122 are rollably disposed between the carrier front surface 1211 of the movable carrier 121 and the inner wall of the upper cover 112, so that the anti-shake movable portion 12 and the anti-shake fixing portion 11 are in point friction contact, and thus the anti-shake driving portion 13 smoothly drives the anti-shake movable portion 12 to perform translational and/or rotational movement with respect to the anti-shake fixing portion 11.

Alternatively, in some specific examples of the camera module of the present invention, the photosensitive member 30 can be inserted into the carrier opening 1213 of the movable carrier 121 to facilitate reducing the height dimension of the camera module. In other words, the movable carrier 121 is disposed around the photosensitive member 30. At this time, on the one hand, a gap is formed between the carrier back 1212 of the movable carrier 121 and the base 111 of the anti-shake fixing portion 11, and on the other hand, a set of rolling balls 122 is disposed between the carrier front 1211 of the movable carrier 121 and the inner wall of the upper cover 112 of the anti-shake fixing portion 11, so as to suspend the anti-shake movable portion 12 in the accommodating cavity 1101 of the anti-shake fixing portion 11, so as to ensure that the anti-shake driving portion 13 can smoothly drive the anti-shake movable portion 12 to perform translational and/or rotational movements relative to the anti-shake fixing portion 11.

Alternatively, in some specific examples of the camera module of the present invention, the circuit board 31 of the photosensitive assembly 30 is mounted to the carrier front surface 1211 of the movable carrier 121. At this time, on the one hand, a gap is provided between the carrier back surface 1212 of the movable carrier 121 and the base 111 of the anti-shake fixing portion 11, and on the other hand, a set of rolling balls 122 is provided between the carrier front surface 1211 of the movable carrier 121 and the inner wall of the upper cover 112 of the anti-shake fixing portion 11, and the set of rolling balls 122 ensure a gap between the photosensitive assembly 30 and the upper cover 112, so as to suspend the anti-shake movable portion 12 in the accommodating cavity 1101 of the anti-shake fixing portion 11, so as to ensure that the anti-shake driving portion 13 can smoothly drive the anti-shake movable portion 12 to perform translational and/or rotational movements with respect to the anti-shake fixing portion 11. It will be appreciated that in these examples where the circuit board 31 of the photosensitive assembly 30 is mounted to the carrier front surface 1211 of the movable carrier 121, the movable carrier 121 may not need to be provided with the carrier opening 1213.

With continued reference to fig. 1 to 6, the anti-shake driving portion 13 includes a plurality of anti-shake magnets 131 and a plurality of anti-shake coils 132, where the anti-shake magnets 131 are respectively disposed on the anti-shake fixing portion 11, the anti-shake coils 132 are respectively disposed on the anti-shake movable portion 12, and the anti-shake magnets 131 and the anti-shake coils 132 correspond to each other, and magnetic fields generated after the anti-shake coils 132 are energized and magnetic fields of the anti-shake magnets 131 can interact to drive the anti-shake movable portion 12 to perform translational and/or rotational movements with respect to the anti-shake fixing portion 11, so as to implement translational anti-shake and/or rotational anti-shake of the camera module. For example, the anti-shake magnets 131 and the anti-shake coils 132 of the anti-shake driving portion 13 can interact to drive the anti-shake movable portion 12 to generate a translational motion along the X-axis direction and/or the Y-axis direction relative to the anti-shake fixing portion 11 so as to implement a translational anti-shake of the camera module. The anti-shake magnets 131 and the anti-shake coils 132 of the anti-shake driving unit 13 can interact with each other to drive the anti-shake movable unit 12 to perform a rotational movement about the Z-axis direction with respect to the anti-shake fixing unit 11, thereby achieving rotational anti-shake of the image pickup module.

Preferably, in the camera module shown in fig. 1 to 6, the anti-shake magnets 131 of the anti-shake driving section 13 are respectively disposed on the upper cover 112 of the anti-shake fixing section 11, and correspondingly, the anti-shake coils 132 of the anti-shake driving section 13 are respectively disposed on the anti-shake movable section 12, and each of the anti-shake magnets 131 and each of the anti-shake coils 132 are in one-to-one correspondence. For example, as viewed from the direction shown in fig. 1, the anti-shake magnet 131 is located above the anti-shake coil 132, that is, the anti-shake magnet 131 and the anti-shake coil 132 are disposed up and down.

Further, the driving assembly 10 includes at least one magnetic conductive member 14, and the magnetic conductive member 14 is covered above the anti-shake magnet 131, so that: on the one hand, the magnetic conductive member 14 can strengthen the magnetic field strength downwards (i.e. the direction of the anti-shake coil 132), so that the anti-shake driving portion 13 has enough driving force to drive the anti-shake movable portion 12 to perform translational and/or rotational movement relative to the anti-shake fixing portion 11, and on the other hand, the magnetic conductive member 14 can avoid magnetic leakage towards the direction of the lens carrier 21 to interfere with the magnetic field of the lens carrier 21.

In other words, in the image capturing module in which magnets are provided on the lens carrier 21 to achieve focusing, zooming, and/or anti-shake functions, the magnetic field of the lens carrier 21 and the magnetic field of the anti-shake driving unit 13 can be isolated by covering the magnetic conductive member 14 above the anti-shake magnets 131 of the anti-shake driving unit 13, so that interference between the two is avoided and reliability and stability of the image capturing module are ensured.

Specifically, the magnetic conductive member 14 is disposed on the upper cover 112 of the anti-shake fixing portion 11, and the anti-shake magnet 131 is disposed on the magnetic conductive member 14, that is, the anti-shake magnet 131 is disposed on the upper cover 112 so as to be disposed on the magnetic conductive member 14, so that the magnetic conductive member 14 can be held between the anti-shake magnet 131 and the upper cover 112. By such a structural design, the magnetic conductive member 14 allows the magnetic force lines of the anti-shake magnet 131 to concentrate toward the anti-shake coil 132 to increase the magnetic field strength of the anti-shake driving section 13 while reducing the magnetic field strength of the lens carrier 21 that overflows, thereby avoiding magnetic interference to the lens carrier 21.

More specifically, the magnetic conductive member 14 has a quadrilateral structure when viewed along the optical axis of the camera module, the area of the magnetic conductive member 14 is greater than or equal to the area of the anti-shake magnet 131, and the magnetic conductive member 14 completely covers the magnetic conductive member 131, so that the magnetic conductive member 14 can effectively prevent the magnetic force of the anti-shake magnet 131 from leaking. In other words, the magnetic conductive member 14 covers the surface of the anti-shake magnet 131 facing the optical lens 22. For example, in a specific example of the image capturing module according to the present invention, the shape of the magnetic conductive member 14 is the same as the shape of the anti-shake magnet 131, that is, the magnetic conductive member 14 is a square flat plate, which is covered over the anti-shake magnet 131 to completely cover the upper surface of the anti-shake magnet 131.

Preferably, in this specific example of the image pickup module according to the present invention shown in fig. 1 to 6, the shape of the magnetically conductive member 14 is different from that of the anti-shake magnet 131, for example, the magnetically conductive member 14 has a "U" shape having an opening, which can cover not only the upper surface of the anti-shake magnet 131 but also at least a portion of the opposite sides of the anti-shake magnet 131 so as to concentrate magnetic lines of force of the anti-shake magnet 131 toward the anti-shake coil 132.

It should be noted that the correspondence between the number of the magnetic conductive members 14 and the number of the anti-shake magnets 131 is not limited in the image capturing module of the present invention. For example, in the specific example of the camera module of the present invention shown in fig. 1 to 6, the number of the magnetic conductive members 14 is identical to the number of the anti-shake magnets 131, so that one magnetic conductive member 14 may be respectively covered above each anti-shake magnet 131, and thus the magnetic conductive members 14 and the anti-shake magnets 131 may be in one-to-one correspondence. Alternatively, in other examples of the camera module of the present invention, the number of the magnetic conductive members 14 is smaller than the number of the anti-shake magnets 131, so that one magnetic conductive member 14 can be covered over at least two anti-shake magnets 131.

As will be appreciated by those skilled in the art, referring to fig. 5 and 6, the photosensitive element 32 of the photosensitive assembly 30 is rectangular in shape with four sides. For convenience of description and understanding, four sides of the photosensitive element 32 are sequentially defined as a first chip side 321, a second chip side 322, a third chip side 323, and a fourth chip side 324 in a clockwise direction, and a coordinate system is established with a center point of the photosensitive element 32 as an origin, a direction parallel to the first chip side 321 and the third chip side 323 as an X-axis direction, a direction parallel to the second chip side 322 and the fourth chip side 324 as a Y-axis direction, and a direction perpendicular to a photosensitive surface of the photosensitive element 32 as a Z-axis direction.

According to the arrangement positions of the anti-shake coils 132 of the anti-shake driving portion 13, the anti-shake coils 132 form a first coil set 133, a second coil set 134 and a third coil set 135, wherein the first coil set 133 is arranged along the Y-axis direction in the plane of the X-axis and the Y-axis, the second coil set 134 and the third coil set 135 are respectively arranged along the X-axis direction, and the second coil set 134 and the third coil set 135 are located on opposite sides of the photosensitive element 32, such that the anti-shake coils 132 of the anti-shake driving portion 13 are wound around the photosensitive element 32 of the photosensitive assembly 30. Preferably, the second coil set 134 and the third coil set 135 are symmetrical with respect to the Y-axis. It is understood that the second coil block 134 and the third coil block 135 are located at opposite sides of the top opening 1102 of the anti-shake fixing portion 11.

The number of the anti-shake coils 132 constituting the first coil group 133 is at least one, the number of the anti-shake coils 132 constituting the second coil group 134 is at least two, and the number of the anti-shake coils 132 constituting the third coil group 135 is at least two. Preferably, in this specific example of the camera module shown in fig. 1 to 6, the number of the anti-shake coils 132 constituting the first coil group 133, the second coil group 134, and the third coil group 135 is two.

Specifically, the two anti-shake coils 132 constituting the first coil group 133 are defined as a first coil 1321 and a second coil 1322, respectively, the first coil 1321 and the second coil 1322 being disposed opposite and parallel along the Y-axis direction; the two anti-shake coils 132 constituting the second coil set 134 are defined as a third coil 1323 and a fourth coil 1324, respectively, the third coil 1323 and the fourth coil 1324 being disposed opposite and parallel to each other along the X-axis direction; the two anti-shake coils 132 constituting the third coil set 135 are defined as a fifth coil 1325 and a sixth coil 1326, respectively, the fifth coil 1325 and the sixth coil 1326 being disposed opposite and in parallel.

In other words, the first coil 1321 and the second coil 1322 are disposed at the fourth chip side 324 and the second chip side 322 of the photosensitive element 32, respectively, and the first coil 1321 and the second coil 1322 are parallel to the fourth chip side 324 and the second chip side 322 of the photosensitive element 32, respectively. The third coil 1323 and the fifth coil 1325 are disposed on the first chip side 321 of the photosensitive element 32, respectively, and the third coil 1323 and the fifth coil 1325 are parallel to the first chip side 321 of the photosensitive element 32, respectively. The fourth coil 1324 and the sixth coil 1326 are disposed to the third chip side 324 of the photosensitive element 32, respectively, and the fourth coil 1324 and the sixth coil 1326 are parallel to the third chip side 323 of the photosensitive element 32, respectively.

In this specific example of the image pickup module of the present invention shown in fig. 1 to 6, the first coil 1321 and the second coil 1322 constituting the first coil group 133 are respectively disposed at opposite sides of the photosensitive element 32 in the Y-axis direction, and the third coil 1323 and the fourth coil 1324 constituting the second coil group 134 and the fifth coil 1325 and the sixth coil 1326 constituting the third coil group 135 are respectively disposed at four corners of the photosensitive element 32 in the X-axis direction. For example, the first coil 1321 is disposed adjacent to the third coil 1323 and the fourth coil 1324, respectively, and the first coil 1321 is perpendicular to the third coil 1323 and the fourth coil 1324, respectively, and accordingly, the second coil 1322 is disposed adjacent to the fifth coil 1325 and the sixth coil 1326, respectively, and the second coil 1322 is perpendicular to the fifth coil 1325 and the sixth coil 1326, respectively. In other words, the second coil set 134 and the third coil set 135 are further from the center of the photosensitive element 32 than the first coil set 133, and the moment is larger, so that the second coil set 134 and the third coil set 135 cooperate with each other to more easily drive the anti-shake movable portion 12 to perform a rotational movement with respect to the anti-shake fixing portion 11, so as to achieve a rotational anti-shake.

Specifically, the first coil 1321 and the second coil 1322 that make up the first coil group 133 are the same in size, the third coil 1323 and the fourth coil 1324 that make up the second coil group 134 and the fifth coil 1325 and the sixth coil 1326 that make up the third coil group 135 are the same in size, and the first coil 1321 and the second coil 1322 are larger in size than the third coil 1323, the fourth coil 1324, the fifth coil 1325 and the sixth coil 1326, wherein the first coil 1321 and the second coil 1322 cooperatively drive the anti-shake movable portion 12 in translational movement relative to the anti-shake fixed portion 11 in the X-axis direction, and the third coil 1323, the fourth coil 1324, the fifth coil 1325 and the sixth coil 1326 cooperatively drive the anti-shake movable portion 12 in translational movement relative to the anti-shake fixed portion 11 in the Y-axis direction and the anti-shake movable portion 12 in the Z-axis direction. It will be appreciated that the first coil 1321 and the second coil 1322 have larger dimensions to ensure that they have larger thrust to drive the anti-shake movable portion 12 to perform translational movement along the X-axis direction relative to the anti-shake fixing portion 11.

Alternatively, in other examples of the camera module of the present invention, the first and

second coils

1321 and 1322 constituting the first coil group 133, the third and

fourth coils

1323 and 1324 constituting the second coil group 134, and the fifth and

sixth coils

1325 and 1326 constituting the third coil group 135 may be the same size.

Preferably, the geometric centers of the first coil 1321 and the second coil 1322 constituting the first coil group 133 and the center of the anti-shake driving section 13 coincide, that is, the distance between the center of the first coil 1321 and the center of the photosensitive element 32 (origin of coordinate axes) and the distance between the center of the second coil 1322 and the center of the photosensitive element 32 coincide, so that it is possible to ensure that the resultant force generated by the first coil 1321 and the second coil 1322 is still located at the center of the anti-shake driving section 13 to avoid the first coil 1321 and the second coil 1322 from generating unnecessary torque.

For example, in a specific example of the image pickup module of the present invention, the center of the first coil 1321 and the center of the second coil 1322 coincide with each other when viewing the plane thereof along the optical axis side of the image pickup module, so that a line between the center of the first coil 1321 and the center of the second coil 1322 passes through the center of the photosensitive element 32 and is parallel to the X-axis direction.

In another specific example of the camera module of the present invention, when the plane is viewed along the optical axis side of the camera module, the center of the first coil 1321 and the center of the second coil 1322 have a certain eccentricity, and the eccentric direction of the center of the first coil 1321 and the center of the second coil 1322 may be the positive direction of the Y axis or the negative direction of the Y axis, wherein a line between the center of the first coil 1321 and the center of the second coil 1322 passes through the center of the photosensitive element 32 and intersects the X axis direction. That is, in this embodiment of the camera module of the present invention, the center of the first coil 1321 may be biased toward the positive direction of the Y-axis, and accordingly, the center of the second coil 1322 may be biased toward the negative direction of the Y-axis, and the distance from the center of the first coil 1321 to the X-axis and the distance from the center of the second coil 1322 to the X-axis are the same, so that it is possible to ensure that the resultant force generated by the first coil 1321 and the second coil 1322 is located at the center of the anti-shake driving section 13. Alternatively, the center of the first coil 1321 may be biased toward the negative Y-axis direction, and accordingly, the center of the second coil 1322 may be biased toward the positive Y-axis direction, and the distance from the center of the first coil 1321 to the X-axis is the same as the distance from the center of the second coil 1322 to the X-axis direction, so that the resultant force generated by the first coil 1321 and the second coil 1322 can be ensured to be located at the center of the anti-shake driving part 13.

In addition, the anti-shake coils 132 of the anti-shake driving section 13 are hollow plane coils, which form one coil plane 13201 and one coil space 13202. Preferably, the coil plane 13201 of the first coil 1321, the coil plane 13201 of the second coil 1322, the coil plane 13201 of the third coil 1323, the coil plane 13201 of the fourth coil 1324, the coil plane 13201 of the fifth coil 1325, and the coil plane 13201 of the sixth coil 1326 are flush, so that the anti-shake driving section 13 can drive the anti-shake movable section 12 to translate within a plane XOY formed by an X axis and a Y axis.

Further, the movable carrier 121 has a plurality of setting bits 1210, the number of setting bits 1210 is identical to the number of the anti-shake coils 132, and each setting bit 1210 is used for setting each anti-shake coil 132, respectively.

According to the arrangement positions of the arrangement bits 1210, these arrangement bits 1210 form a first position group 12101, a second position group 12102, and a third position group 12103, wherein each of the arrangement bits 1210 constituting the first position group 12101 is respectively arranged at opposite sides in the Y-axis direction, and each of the arrangement bits 1210 constituting the second position group 12102 and the third position group 12103 is respectively arranged at four corners in the X-axis direction.

Further, each of the placement bits 1210 constituting the first position group 12101 is disposed along the Y-axis direction, each of the placement bits 1210 constituting the second position group 12102 is disposed along the X-axis direction, each of the placement bits 1210 constituting the third position group 12103 is disposed along the X-axis direction, and each of the placement bits 1210 constituting the second position group 12102 is disposed opposite to each other along the Y-axis direction, each of the placement bits 1210 constituting the third position group 12103 is disposed opposite to each other along the Y-axis direction. Preferably, each of the placement bits 1210 constituting the second position group 12102 is symmetrical with respect to the Y-axis, and each of the placement bits 1210 constituting the third position group 12103 is symmetrical with respect to the Y-axis.

The shape of the mounting position 1210 is the same as that of the anti-shake coil 132 so that the anti-shake coil 132 is mounted on the mounting position 1210. The placement bits 1210 have a rectangular or approximately rectangular structure as viewed from the optical axis side of the camera module, wherein the long side of each placement bit 1210 constituting the first position group 12101 is parallel to the Y-axis direction, the long side of each placement bit 1210 constituting the second position group 12102 and the long side of each placement bit 1210 constituting the third position group 12103 are parallel to the X-axis direction, and the long side of each placement bit 1210 constituting the first position group 12101 is perpendicular to the long side of each placement bit 1210 constituting the second position group 12102 and the third position group 12103, respectively.

In some examples of the camera module of the present invention, the mounting location 1210 may be a planar mounting location, such that the anti-shake coil 132 can be directly disposed on a surface of the mounting location 1210. In other examples of the camera module of the present invention, the mounting locations 1210 may be recessed mounting locations such that the anti-shake coils 132 can be embedded in the mounting locations 1210 to reduce the height of the drive assembly 10. In other examples of the camera module of the present invention, the mounting locations 1210 may be through hole mounting locations such that the anti-shake coils 132 can be embedded in the mounting locations 1210 to reduce the height of the drive assembly 10.

According to the setting positions of the anti-shake magnets 131 of the anti-shake driving portion 13, the anti-shake magnets 131 form a first magnet set 136, a second magnet set 137 and a third magnet set 138, wherein the first magnet set 136 is disposed along the Y axis direction on the plane where the X axis and the Y axis are located, the second magnet set 137 and the third magnet set 138 are disposed along the X axis direction, and the second magnet set 137 and the third magnet set 138 are located on opposite sides of the photosensitive element 32, so that the anti-shake magnets 131 of the anti-shake driving portion 13 encircle the periphery of the photosensitive element 32 of the photosensitive assembly 30. Preferably, the second magnet group 137 and the third magnet group 138 are symmetrical with respect to the Y axis.

The number of the anti-shake magnets 131 constituting the first magnet group 136 is at least one, the number of the anti-shake magnets 131 constituting the second magnet group 137 is at least two, and the number of the anti-shake magnets 131 constituting the third magnet group 138 is at least two. Preferably, in this specific example of the camera module shown in fig. 1 to 6, the number of the anti-shake magnets 131 constituting the first magnet group 136, the second magnet group 137, and the third magnet group 138 is two.

Specifically, the two anti-shake magnets 131 constituting the first magnet group 136 are defined as a first magnet 1311 and a second magnet 1312, respectively, the first magnet 1311 and the second magnet 1312 being disposed opposite and parallel to each other along the Y-axis direction, and the first magnet 1311 and the first coil 1321 being disposed opposite, and the second magnet 1312 and the second coil 1322 being disposed opposite. The two anti-shake magnets 131 constituting the second magnet group 137 are defined as a third magnet 1313 and a fourth magnet 1314, respectively, the third magnet 1313 and the fourth magnet 1314 being disposed opposite and parallel to each other along the X-axis direction, and the third magnet 1313 and the third coil 1323 being disposed opposite, and the fourth magnet 1314 and the fourth coil 1324 being disposed opposite to each other. The two anti-shake magnets 131 constituting the third magnet group 138 are defined as a fifth magnet 1315 and a sixth magnet 1316, respectively, the fifth magnet 1315 and the sixth magnet 1316 being disposed opposite and parallel to each other along the X-axis direction, and the fifth magnet 1315 and the fifth coil 1325 being disposed opposite, and the sixth magnet 1316 and the sixth coil 1326 being disposed opposite.

In other words, the first magnet 1311 and the second magnet 1312 are disposed on the fourth chip side 324 and the second chip side 322 of the photosensitive element 32, respectively, and the first magnet 1311 and the second magnet 1312 are parallel to the fourth chip side 324 and the second chip side 322 of the photosensitive element 32, respectively. The third magnet 1313 and the fifth magnet 1315 are disposed on the first chip side 321 of the photosensitive element 32, respectively, and the third magnet 1313 and the fifth magnet 1315 are parallel to the first chip side 321 of the photosensitive element 32, respectively. The fourth magnet 1314 and the sixth magnet 1316 are respectively disposed at the third chip side 323 of the photosensitive element 32, and the fourth magnet 1314 and the sixth magnet 1316 are respectively parallel to the third chip side 323 of the photosensitive element 32.

In this specific example of the image pickup module of the present invention shown in fig. 1 to 6, the first magnet 1311 and the second magnet 1312 constituting the first magnet group 136 are respectively disposed at opposite sides of the photosensitive element 32 in the Y-axis direction, and the third magnet 1313 and the fourth magnet 1314 constituting the second magnet group 137 and the fifth magnet 1315 and the sixth magnet 1316 constituting the third magnet group 138 are respectively disposed at four corners of the photosensitive element 32 in the X-axis direction. For example, the first magnet 1311 is disposed adjacent to the third magnet 1313 and the fourth magnet 1314, respectively, and the first magnet 1311 is perpendicular to the third magnet 1313 and the fourth magnet 1314, respectively, and the second magnet 1312 is disposed adjacent to the fifth magnet 1315 and the sixth magnet 1316, respectively, and the second magnet 1312 is perpendicular to the fifth magnet 1315 and the sixth magnet 1316, respectively.

Specifically, the first magnet 1311 and the second magnet 1312 that constitute the first magnet group 136 have the same size, the third magnet 1313 and the fourth magnet 1314 that constitute the second magnet group 137, and the fifth magnet 1315 and the sixth magnet 1316 that constitute the third magnet group 138 have the same size, and the first magnet 1311 and the second magnet 1312 have larger sizes than the third magnet 1313, the fourth magnet 1314, the fifth magnet 1315, and the sixth magnet 1316, wherein the first magnet 1311 and the second magnet 1312 cooperatively drive the anti-shake driving portion 13 to perform translational movement in the X-axis direction relative to the anti-shake fixing portion 11, and the third magnet 1313, the fourth magnet 1314, the fifth magnet 1315, and the sixth magnet 1316 cooperatively drive the anti-shake driving portion 13 to perform translational movement in the Y-axis direction relative to the anti-shake fixing portion 11, or the anti-shake driving portion 13 to perform rotational movement in the Z-axis direction relative to the anti-shake driving portion 11. It will be appreciated that the first magnet 1311 and the second magnet 1312 have a larger size to ensure a larger thrust force to drive the anti-shake movable portion 12 to perform a translational movement along the X-axis direction relative to the anti-shake fixing portion 11.

Alternatively, in other examples of the camera module of the present invention, the first magnet 1311 and the second magnet 1312 that constitute the first magnet group 136, the third magnet 1313 and the fourth magnet 1314 that constitute the second magnet group 137, and the fifth magnet 1315 and the sixth magnet 1316 that constitute the third magnet group 138 may be the same size.

In a specific example of the image pickup module of the present invention, the anti-shake magnet 131 of the anti-shake driving section 13 is a single pole magnet having one N pole and one S pole, which are disposed in the horizontal direction and face the anti-shake coil 132. Alternatively, in some other examples of the camera module of the present invention, the anti-shake magnet 131 of the anti-shake driving section 13 is a bipolar magnet having two N poles and two S poles, the N poles and the S poles of the first set of poles being disposed in a horizontal direction and facing the anti-shake coil 132, the S poles of the second set of poles being disposed at the bottom of the N poles of the first set of poles, the N poles of the second set of poles being disposed at the bottom of the S poles of the first set of poles, such that the S poles and the N poles of the second set of poles are disposed in a horizontal direction and distant from the anti-shake coil 132.

It should be noted that, in this specific example of the image capturing module of the present invention, the first coil 1321 and the second coil 1322 that constitute the first coil group 133 correspond to the first magnet 1311 and the second magnet 1312 that constitute the first magnet group 136, respectively, such that when the first coil 1321 and the second coil 1322 are energized, the magnetic field generated by the first coil 1321 and the magnetic field of the first magnet 1311 cooperate with each other and the magnetic field generated by the second coil 1322 and the magnetic field of the second magnet 1312 cooperate with each other to enable the anti-shake movable section 12 to be driven to translate in the X-axis direction, so as to achieve translational anti-shake in the X-axis direction. The third coil 1323 and the fourth coil 1324 which constitute the second coil group 134 correspond to the third magnet 1313 and the fourth magnet 1314 which constitute the second magnet group 137, respectively, the fifth coil 1325 and the sixth coil 1326 which constitute the third coil group 135 correspond to the fifth magnet 1315 and the sixth magnet 1316 which constitute the third coil group 138, respectively, such that when the second coil group 134 and the third coil group 135 are energized with the same current and the same value, the second coil group 134 and the second magnet group 137 cooperate with each other and the third coil group 135 and the third magnet group 138 cooperate with each other to be able to drive the anti-shake movable portion 12 to translate in the Y-axis direction to achieve translational anti-shake in the Y-axis direction, and when the second coil group 134 and the third coil group 135 are energized with the current of opposite directions but the same value, the second coil group 134 and the third coil group 135 cooperate with each other to be able to drive the anti-shake movable portion 12 to rotate around the Z-axis direction, respectively, the second coil group 134 and the third coil group 135 cooperate with each other to achieve anti-shake in the Z-axis direction.

Preferably, the anti-shake driving section 13 has a translational stroke of ±235 μm in the X-axis and Y-axis directions and a rotational stroke of ±1° around the Z-axis direction.

With continued reference to fig. 1 to 6, the anti-shake movable portion 12 further includes an electrical connection portion 123, wherein the anti-shake coils 132 of the anti-shake driving portion 13 are respectively connected to the electrical connection portion 123 to supply power to the anti-shake coils 132 through the electrical connection portion 123. Preferably, the electrical connection portion 123 is electrically connected to the circuit board 31 of the photosensitive assembly 30.

Preferably, the electric connection part 123 is a frame-shaped structure forming a connection part opening 1231, wherein the electric connection part 123 is attached to the carrier back surface 1212 of the movable carrier 121, and the connection part opening 1231 of the electric connection part 123 and the carrier opening 1213 of the movable carrier 121 correspond to and communicate with each other, wherein the circuit board 31 of the photosensitive assembly 30 is fixed to the electric connection part 123 such that incident light is allowed to reach the photosensitive element 32 through the carrier opening 1213 of the movable carrier 121 and the connection part opening 1231 of the electric connection part 123.

Alternatively, in other examples of the image capturing module of the present invention, the anti-shake movable section 12 may be provided without the electrical connection section 123, and the anti-shake coils 132 of the anti-shake driving section 13 may be respectively attached to the circuit board 31 of the photosensitive assembly 30 to supply power to the anti-shake coils 132 through the circuit board 31. At this time, the circuit board 31 of the photosensitive assembly 30 may be directly attached to the carrier back 1212 of the movable carrier 121.

With continued reference to fig. 1 to 6, the movable carrier 121 has a plurality of carrier notches 1214, the carrier notches 1214 respectively extending from the carrier front surface 1211 to the carrier back surface 1212, wherein the anti-shake coils 132 of the anti-shake driving section 13 are respectively held at the carrier notches 1214 of the movable carrier 121, such that the anti-shake coils 132 of the anti-shake driving section 13 can extend toward the anti-shake magnet 131 through the plurality of carrier notches 1214 of the movable carrier 121 on the basis that the electrical connection section 123 is attached to the carrier back surface 1212 of the movable carrier 121. That is, these carrier notches 1214 of the movable carrier 121 can form the seating positions 1210 for seating the anti-shake coils 132, respectively.

It should be noted that the shape of the carrier notch 1214 of the movable carrier 121 is not limited in the camera module of the present invention.

Preferably, in this embodiment of the camera module of the present invention, the anti-shake coils 132 of the anti-shake driving unit 13 are respectively attached to the electrical connection units 123, and the anti-shake coils 132 can be respectively held by the carrier notches 1214 of the movable carrier 121 by attaching the electrical connection units 123 to the carrier back surface 1212 of the movable carrier 121.

Alternatively, in other examples of the image pickup module of the present invention, the anti-shake coils 132 of the anti-shake driving section 13 are fixed to the movable carrier 121, respectively, and the anti-shake coils 132 may be connected to the electrical connection section 123 or to the circuit board 31 by connection lines. At this time, the movable carrier 121 may not be provided with the carrier notch 1214.

With continued reference to fig. 1 to 6, the driving assembly 10 further includes at least one magnetic attraction member 15, wherein the magnetic attraction member 15 is disposed on the anti-shake movable portion 12, and a position of the magnetic attraction member 15 corresponds to a position of the anti-shake magnet 131 of the anti-shake driving portion 13, so that the magnetic attraction member 15 and the anti-shake magnet 131 can cooperate with each other to generate a magnetic attraction force in a Z-axis direction so as to suspend the anti-shake movable portion 12 in the accommodating cavity 1101 of the anti-shake fixing portion 11.

In other words, the magnetic attraction force generated by the magnetic attraction member 15 and the anti-shake magnet 131 of the anti-shake driving portion 13 in the Z-axis direction can ensure that a set of the balls 122 of the anti-shake movable portion 12 always abuts against the upper cover 112 of the anti-shake fixing portion 11, and since the anti-shake movable portion 12 is provided with a set of the balls 122 capable of rolling between the carrier front surface 1211 of the movable carrier 121 and the inner wall of the upper cover 112, point friction contact is made between the anti-shake movable portion 12 and the anti-shake fixing portion 11, in this way, the anti-shake driving portion 13 can smoothly drive the anti-shake movable portion 12 to perform translational and/or rotational movement with respect to the anti-shake fixing portion 11, so as to achieve translational anti-shake and/or rotational anti-shake of the camera module.

Preferably, the movable carrier 121 has a set of holding grooves 1215 formed on the carrier front surface 1211 of the movable carrier 121, wherein the balls 122 are rollably held in the holding grooves 1215 of the movable carrier 121, in such a manner that the balls 122 are prevented from being disengaged from between the movable carrier 121 and the upper cover 112 when the anti-shake driving part 13 drives the anti-shake movable part 12 to perform translational and/or rotational movement with respect to the anti-shake fixing part 11, thereby ensuring reliability and stability of the camera module. Specifically, when the driving portion 13 drives the movable carrier 121 of the anti-shake movable portion 12 to perform translational and/or rotational movement with respect to the anti-shake fixing portion 11, the movement locus of the balls 122 can be restricted within the holding groove 1215 of the movable carrier 121 so that the balls 122 always support the movable carrier 121 and the upper cover 112 of the anti-shake fixing portion 11.

That is, the holding groove 1215 and the ball 122 of the movable carrier 121 can form a supporting portion 17 of the driving assembly 10, that is, the supporting portion 17 includes a set of the balls 122 and has a set of the holding grooves 1215, wherein a set of the holding grooves 1215 are respectively formed in the carrier front face 122 of the movable carrier 121, and a set of the balls 122 are respectively rollably held in the holding grooves 1215 between the movable carrier 121 and the upper cover 112, so that the supporting portion 17 can support the movable carrier 121 and the upper cover 112. The balls 122 are movable along a plane formed in the X-axis and the Y-axis within the holding groove 1215 to provide a moving space for the movement of the anti-shake movable portion 12.

Further, the movable carrier 121 has at least one extension post 1216, the holding groove 1215 is formed in the extension post 1216, and an opening of the holding groove 1215 is directed toward the upper cover 112 of the anti-shake fixing portion 11. The depth of the holding groove 1215 is less than or equal to the diameter of the ball 122, so that at least a portion of the ball 122 may protrude from the holding groove 1215, and the height position of the ball 122 is greater than the height position of the anti-shake coil 132, so that the ball 122 can be in point friction contact with the extension post 1216 and the upper cover 112 of the movable carrier 121, respectively.

It will be appreciated that by such a structural design as described above, the upper portion of the ball 122 faces the plane formed by the inner wall of the upper cover 112, and the lower portion of the ball 122 faces the recess formed by the holding groove 1215, so that: on the one hand, the balls 122 can roll between the movable carrier 121 and the upper cover 112, and on the other hand, the holding grooves 1215 can limit the balls 122, so as to prevent the balls 122 from falling off, thereby ensuring the reliability of the camera module.

It is understood that the balls 122 allow a gap between the anti-shake magnet 131 and the anti-shake coil 132 to avoid direct contact between the anti-shake magnet 131 and the anti-shake coil 132. Preferably, a gap formed between the anti-shake magnet 131 and the anti-shake coil 132 is in a range of 0.05mm to 0.5mm to ensure good electromagnetic induction between the anti-shake magnet 131 and the anti-shake coil 132.

Further, the driving assembly 10 includes at least three of the supporting parts 17 to ensure smooth translation and rotation of the anti-shake movable part 12 along the X-axis and the Y-axis, and around the Z-axis. That is, the anti-shake movable portion 12 includes at least three of the balls 122, and the movable carrier 121 has at least three of the holding grooves 1215.

Preferably, in this specific example of the camera module shown in fig. 1 to 6, the driving assembly 10 includes four supporting portions 17, which are disposed between the first position group 12101 and the second position group 12102 and between the second position group 12102 and the third position group 12103, respectively. That is, the four supporting portions 17 of the driving unit 10 are respectively located at the four corners of the anti-shake movable portion 12 to provide a smoother support for the anti-shake movable portion 12, and make full use of the internal space of the driving unit 10 to make the structure of the driving unit 10 more compact. Alternatively, in still other examples of the camera module of the present invention, the supporting portion 17 of the driving assembly 10 may be a slider slidably held between the movable carrier 121 and the upper cover 112 for smoothly supporting the anti-shake movable portion 12. With continued reference to fig. 1 to 6, the driving assembly 10 includes four magnetic attraction members 15, and each magnetic attraction member 15 is disposed at each corner of the anti-shake movable portion 12, so that the flatness of the anti-shake movable portion 12 can be ensured and the optical axis of the image capturing module can be perpendicular to the photosensitive surface of the photosensitive element 32 of the photosensitive assembly 30.

With continued reference to fig. 1 to 6, in this specific example of the camera module of the present invention, the magnetic attraction member 15 is provided to the electrical connection portion 123 to optimize the structure of the camera module. Alternatively, in other examples of the image capturing module of the present invention, the magnetic attraction member 15 may be disposed on the movable carrier 121, or the magnetic attraction member 15 may be disposed on the circuit board 31 of the photosensitive assembly 30, or the magnetic attraction member 15 may be disposed between the movable carrier 121 and the electrical connection section 123, or the magnetic attraction member 15 may be disposed between the electrical connection section 123 and the circuit board 31.

In addition, in some examples of the image capturing module of the present invention, the magnetic attraction member 15 and the anti-shake magnet 131 of the anti-shake driving section 13 may be perfectly aligned, that is, the magnetic attraction member 15 may be located directly below the anti-shake magnet 131 of the anti-shake driving section 13. In other examples of the image capturing module according to the present invention, the magnet 15 and the anti-shake magnet 131 of the anti-shake driving section 13 may not be perfectly aligned, and there may be some deviation therebetween.

It will be appreciated that, when the anti-shake driving portion 13 drives the anti-shake movable portion 12 to perform translational and/or rotational movement with respect to the anti-shake fixing portion 11, the magnetic attraction member 15 may perform translational and/or rotational movement with respect to the anti-shake fixing portion 11 synchronously, and at this time, some deviation may also occur between the magnetic attraction member 15 and the anti-shake magnet 131, but the plane of the magnetic attraction member 15 and the plane of the anti-shake magnet 131 are always parallel, that is, the plane of the magnetic attraction member 15 and the plane of the anti-shake magnet 131 are always orthogonal to the Z axis, so that the magnetic attraction force generated by the magnetic attraction member 15 and the anti-shake magnet 131 in the Z axis direction may refer to magnetic attraction force between the plane of the magnetic attraction member 15 and the plane of the anti-shake magnet 131, including, but not limited to, magnetic attraction force in the vertical direction, and oblique magnetic attraction force in the vertical direction.

With continued reference to fig. 1 to 6, the driving assembly 10 further includes at least three anti-shake position sensing elements 16 that sense the position information of the anti-shake movable portion 12 in the X-axis direction translation, the Y-axis direction translation, and the Z-axis direction rotation by sensing the position information of the first magnet set 136, the second magnet set 137, and the third magnet set 138, respectively.

Preferably, three of the anti-shake position sensing elements 16 are defined as a first sensing element 161, a second sensing element 162 and a third sensing element 163, respectively. The first sensing element 161 is disposed in the coil space 13202 of the first coil 1321 to correspond to the first magnet 1311, wherein the first sensing element 161 is configured to sense a magnetic field change when translating in the X-axis direction. The second sensing element 162 is disposed in the coil space 13202 of the fourth coil 1324 to correspond to the fourth magnet 1314, wherein the second sensing element 162 is configured to sense a magnetic field change during translation in the Y-axis direction. The third sensing element 163 is disposed in the coil space 13202 of the fifth coil 1325 to correspond to the fifth magnet 1315, wherein the second sensing element 162 and the third sensing element 163 are configured to sense a change in a magnetic field when rotated in the Z-axis direction.

Preferably, the anti-shake position sensing element 16 is attached to the electrical connection 123.

In the camera module of the present invention, the first coil set 133, the second coil set 134 and the third coil set 135 of the anti-shake driving part 13 are coil sets that are independently controlled, so only three anti-shake position sensing elements 16 are needed, which not only can reduce the number of elements of the driving assembly 10, but also can make full use of the internal space of the driving assembly 10 to make the driving assembly 10 compact.

It should be noted that, in some embodiments of the camera module of the present invention, the anti-shake position sensing element 16 may be a hall element. In other embodiments of the camera module of the present invention, the anti-shake position sensing element 16 may be a driving IC adapted to control the current of the anti-shake coil 132 while acquiring the position change of the anti-shake magnet 131. Specifically, after the camera module has turned on the anti-shake function, the anti-shake position sensing element 16 is capable of sensing the current positions of the first magnet set 136, the second magnet set 137 and the third magnet set 138, and driving the anti-shake movable portion 12 to move to the sensed central position by controlling the currents of the first coil set 133, the second coil set 134 and the third coil set 135, and after the camera module has turned off the anti-shake function, returning the anti-shake movable portion 12 to the initial position by the reactive force of the circuit board 31 of the photosensitive assembly 30 (i.e., the elastic force accumulated by the circuit board 31 due to the elastic deformation when the circuit board 31 is translated and/or rotated).

Fig. 7 shows a modified example of the camera module of the present invention, unlike the camera module shown in fig. 1 to 6, in this modified example of the camera module shown in fig. 7, the first coil group 133 includes four anti-shake coils 132, wherein two of the anti-shake coils 132 constituting the first coil group 133 are disposed symmetrically with respect to each other at one end of the second chip side 322 and the fourth chip side 324 of the photosensitive element 32, and the other two of the anti-shake coils 132 are disposed symmetrically with respect to each other at the other end of the second chip side 322 and the fourth chip side 324 of the photosensitive element 32. The four holding grooves 1215 of the movable carrier 121 are formed in the middle portions of the first chip side 321, the second chip side 322, the third chip side 323, and the fourth chip side 324 of the photosensitive element 32, respectively, such that the four balls 122 are rollably held between the carrier front surface 1211 of the movable carrier 121 and the inner wall of the upper cover 112 in the middle portions of the first chip side 321, the second chip side 322, the third chip side 323, and the fourth chip side 324 of the photosensitive element 32, respectively.

Fig. 8A to 9B show another embodiment of the camera module according to the present invention, which is different from the camera module shown in fig. 1 to 6 in the specific structure of the driving assembly 10. Specifically, in this specific example of the camera module shown in fig. 8A to 9B, the anti-shake magnets 131 of the anti-shake driving section 13 are respectively provided to the anti-shake movable section 12, the anti-shake coils 132 are respectively provided to the anti-shake fixing section 11, and the anti-shake magnets 131 and the anti-shake coils 132 correspond to each other, wherein magnetic fields generated after the anti-shake coils 132 are energized and magnetic fields of the anti-shake magnets 131 can interact to drive the anti-shake movable section 12 to perform translational and/or rotational movements with respect to the anti-shake fixing section 11, thereby achieving translational and/or rotational anti-shake of the camera module. For example, the anti-shake magnets 131 and the anti-shake coils 132 of the anti-shake driving portion 13 can interact to drive the anti-shake movable portion 12 to generate a translational motion along the X-axis direction and/or the Y-axis direction relative to the anti-shake fixing portion 11 so as to implement a translational anti-shake of the camera module. The anti-shake magnets 131 and the anti-shake coils 132 of the anti-shake driving unit 13 can interact with each other to drive the anti-shake movable unit 12 to perform a rotational movement about the Z-axis direction with respect to the anti-shake fixing unit 11, thereby achieving rotational anti-shake of the image pickup module.

Preferably, in the image pickup module shown in fig. 8A to 9B, the anti-shake magnets 131 of the anti-shake driving section 13 are respectively provided to the movable carrier 121 of the anti-shake movable section 12, and accordingly, the anti-shake coils 132 of the anti-shake driving section 13 are respectively provided to the upper cover 112 of the anti-shake fixing section 11, and each of the anti-shake magnets 131 and each of the anti-shake coils 132 are in one-to-one correspondence.

Preferably, the anti-shake magnets 131 of the anti-shake driving section 13 are mounted to the mounting positions 1210 of the movable carrier 121, respectively.

With continued reference to fig. 8A to 9B, the electrical connection portion 123 is attached to the inner wall of the upper cover 112, and the connection portion opening 1231 of the electrical connection portion 123 and the top opening 1102 of the anti-shake fixing portion 11 correspond to and communicate with each other, so as to avoid that the electrical connection portion 123 blocks light entering the inside of the driving assembly 10 through the top opening 1102 of the anti-shake fixing portion 11. The anti-shake coils 132 of the anti-shake driving part 13 may be respectively attached to the electric connection parts 123 so as to provide the anti-shake coils 132 on the upper cover 112 through the electric connection parts 123.

In addition, the electrical connection part 123 may have a plurality of escape positions 1232, and the size of the escape positions 1232 is larger than that of the extension posts 1216 of the movable carrier 121 to ensure that the anti-shake movable part 12 can be driven to translate in the X-axis and/or Y-axis directions and/or rotate about the Z-axis directions.

Alternatively, in other examples of the image pickup module of the present invention, the image pickup module may not be provided with the electric connection portion 123, but the anti-shake coils 132 of the anti-shake driving portion 13 may be directly provided to the upper cover 112, and the anti-shake coils 132 may be connected to the circuit board 31 of the photosensitive assembly 30 through connection lines.

With continued reference to fig. 8A to 9B, the magnetic attraction members 15 of the driving assembly 10 are respectively disposed on the upper cover 112 of the anti-shake fixing portion 11, and the positions of the magnetic attraction members 15 correspond to the positions of the anti-shake magnets 131 of the anti-shake driving portion 13, so that the magnetic attraction members 15 and the anti-shake magnets 131 can cooperate with each other to generate a magnetic attraction force in the Z-axis direction so as to suspend the anti-shake movable portion 12 in the accommodating cavity 1101 of the anti-shake fixing portion 11.

Alternatively, in other examples of the camera module of the present invention, the magnetic attraction members 15 of the driving assembly 10 may be disposed at the electrical connection 123, or the magnetic attraction members 15 may be disposed between the electrical connection 123 and the upper cover 112.

In this modified example of the camera module shown in fig. 10, the magnetically conductive member 14 of the driving assembly 10 is located below the anti-shake magnet 131, so that: on the one hand, the magnetic conductive member 14 can strengthen the magnetic field strength upward (i.e., in the direction in which the anti-shake coil 132 is located), so that the anti-shake driving portion 13 has sufficient driving force to drive the anti-shake movable portion 12 to perform translational and/or rotational movement with respect to the anti-shake fixing portion 11; on the other hand, the magnetic conductive member 14 can prevent the magnetic field of the anti-shake magnet 131 from leaking out, and avoid interfering with the circuit board 31 and the photosensitive element 32 of the photosensitive assembly 30.

Specifically, the magnetic conductive member 14 is provided to the movable carrier 121, and the anti-shake magnet 131 is provided to the magnetic conductive member 14, that is, the anti-shake magnet 131 is provided to the movable carrier 121 so as to be provided to the magnetic conductive member 14.

It should be noted that the manner in which the magnetic conductive member 14 is disposed on the movable carrier 121 is not limited in the camera module of the present invention. For example, in some embodiments of the camera module of the present invention, after the magnetic conductive member 14 and the movable carrier 121 are formed separately, the magnetic conductive member 14 may be disposed on the movable carrier 121 by means of glue bonding. In other embodiments of the camera module of the present invention, the movable carrier 121 may be injection molded to allow the movable carrier 121 to be integrally formed with the magnetic conductive member 14, so that the magnetic conductive member 14 is disposed on the movable carrier 121.

Unlike the camera module shown in fig. 1 to 6, in this modified example of the camera module shown in fig. 11, the driving assembly 10 may not be provided with the magnet member 15 and the balls 122 may not be provided between the movable carrier 121 and the upper cover 112. Specifically, the driving assembly 10 further includes a suspension portion 18 for suspending the anti-shake movable portion 12 from the receiving cavity 1101 of the anti-shake fixing portion 11.

Specifically, the suspension portion 18 includes at least three suspension elements 181 having elasticity, the top end of each suspension element 181 is connected to the upper cover 112 of the anti-shake fixing portion 11, and the bottom end of each suspension element 181 is connected to the movable carrier 121 of the anti-shake movable portion 12, so that the suspension elements 181 suspend the anti-shake movable portion 12 in the accommodating cavity 1101 of the anti-shake fixing portion 11.

When the anti-shake coil 132 of the anti-shake driving portion 13 is energized to allow the anti-shake coil 132 and the anti-shake magnet 131 to cooperate with each other to drive the anti-shake movable portion 12 to perform translational and/or rotational movement relative to the anti-shake fixing portion 11, the anti-shake fixing portion 11 drives the suspension elements 181 to deform the suspension elements 181. Accordingly, when the anti-shake coil 132 of the anti-shake driving portion 13 is powered off, the suspension elements 181 can drive the anti-shake movable portion 12 to return to the initial position during the process of restoring to the initial state.

Preferably, the suspension portion 18 includes four suspension elements 181, the top ends of the four suspension elements 181 are respectively connected to four corners of the upper cover 112, and the bottom ends of the four suspension elements 181 are respectively connected to four corners of the movable carrier 121, so that the four suspension elements 181 of the suspension portion 18 can cooperate with each other to ensure that the anti-shake movable portion 12 translates and/or rotates stably in the accommodating cavity 1101 of the anti-shake fixing portion 11. At this time, each of the anti-shake coils 132 of the anti-shake driving section 13 is provided at each side of the anti-shake movable section 12, respectively, to form avoidance.

Optionally, in other examples of the camera module of the present invention, top ends of the four suspension elements 181 of the suspension 18 are respectively connected to middle portions of four sides of the upper cover 112, and bottom ends of the four suspension elements 181 are respectively connected to middle portions of four sides of the movable carrier 121, so that the four suspension elements 181 of the suspension 18 can cooperate with each other to ensure that the anti-shake movable portion 12 translates and/or rotates stably in the accommodating cavity 1101 of the anti-shake fixing portion 11. At this time, each of the anti-shake coils 132 of the anti-shake driving section 13 is provided at each corner of the anti-shake movable section 12, respectively, to form avoidance.

It should be noted that the type of the suspension element 181 of the suspension 18 is not limited in the camera module of the present invention, and for example, the suspension element 181 may be a suspension wire, a spring, a shrapnel, a fold line body, or the like. Unlike the image pickup module shown in fig. 8A to 9B, in this modified example of the image pickup module shown in fig. 12, the driving assembly 10 may not be provided with the magnetic attraction member 15 and the balls 122 may not be provided between the movable carrier 121 and the upper cover 112. Specifically, similarly to the camera module shown in fig. 11, in this specific example of the camera module shown in fig. 12, the driving assembly 10 suspends the anti-shake movable portion 12 in the accommodation chamber 1101 of the anti-shake fixing portion 11 by the suspending portion 18.

Alternatively, in another example of the camera module of the present invention, the driving assembly 10 includes two suspension portions 18, wherein the top ends of the suspension elements 181 of one suspension portion 18 are connected to the upper cover 112, the bottom ends are connected to the movable carrier 121, the top ends of the suspension elements 181 of the other suspension portion 18 are connected to the movable carrier 1212, and the bottom ends are connected to the base 111, so that the two suspension portions 18 cooperate with each other to be capable of suspending the anti-shake movable portion 12 in the housing cavity 1101 of the anti-shake fixing portion 11.

Fig. 13 shows another preferred example of the camera module of the present invention, the magnetic attraction member 15 is disposed on the anti-shake movable portion 12, and the magnetic attraction member 15 and the anti-shake magnet 131 correspond to each other to generate a magnetic attraction in the Z-axis direction so that the anti-shake movable portion 12 has a tendency to approach the upper cover 112 of the anti-shake fixing portion 11, wherein the top ends of the suspension elements 181 of the suspension portion 18 are connected to the movable carrier 121 of the anti-shake movable portion 12, and the bottom ends are connected to the base 111 of the anti-shake fixing portion 11 to prevent the anti-shake movable portion 12 from moving in the direction of the anti-shake fixing portion 11, in such a manner that the anti-shake movable portion 12 can be suspended in the housing chamber 1101 of the anti-shake fixing portion 11.

Fig. 14A to 16B show the current direction and the force receiving direction of each of the anti-shake coils 132 of the anti-shake driving section 13 when the anti-shake movable section 12 is translated in the X-axis direction, translated in the Y-axis direction, and rotated about the Z-axis direction, wherein the first coil 1321 and the second coil 1322 are connected in series, the third coil 1323 and the fourth coil 1324 are connected in series, and the fifth coil 1325 and the sixth coil 1326 are connected in series.

Referring to fig. 14A and 14B, when the first coil 1321 is energized with a clockwise current and the second coil 1322 is energized with a counterclockwise current, the first coil 1321 and the second coil 1322 receive lorentz force under the action of a magnetic field, so that the anti-shake movable portion 12 drives the photosensitive assembly 30 to translate along the negative direction of the X axis to compensate, so as to implement the translation anti-shake of the camera module in the X axis direction.

With continued reference to fig. 14A, arrow I indicates the current direction and symbol F indicates the force applied to the anti-shake coil 132. In the process of translational anti-shake in the X-axis direction, the magnitudes of currents flowing through the first coil 1321 and the second coil 1322 are the same, and at this time, the magnitudes of stresses of the first coil 1321 and the second coil 1322 are the same and the directions are the same.

Conversely, when the first coil 1321 is energized with a counterclockwise current and the second coil 1322 is energized with a clockwise current, the first coil 1321 and the second coil 1322 are subjected to lorentz force under the action of the magnetic field, so that the anti-shake movable portion 12 drives the photosensitive assembly 30 to translate along the positive direction of the X axis to compensate, so as to realize the translation anti-shake of the image capturing module in the X axis direction.

Referring to fig. 15A and 15B, when the third coil 1323 is energized with a clockwise current, the fourth coil 1324 is energized with a counterclockwise current, the fifth coil 1325 is energized with a clockwise current, and the sixth coil 1326 is energized with a counterclockwise current, the third coil 1323, the fourth coil 1324, the fifth coil 1325, and the sixth coil 1326 are subjected to lorentz force under the action of a magnetic field, so that the anti-shake movable portion 12 drives the photosensitive assembly 30 to translate along the positive direction of the Y axis to compensate, so as to implement the translation anti-shake of the image capturing module in the Y axis direction.

With continued reference to fig. 15A, arrow I indicates the current direction and symbol F indicates the force applied to the anti-shake coil 132. In the process of the translational shake prevention in the Y-axis direction, the magnitudes of currents flowing through the third coil 1323, the fourth coil 1324, the fifth coil 1325 and the sixth coil 1326 are the same, and at this time, the magnitudes of stresses of the third coil 1323, the fourth coil 1324, the fifth coil 1325 and the sixth coil 1326 are the same and the directions are the same.

Conversely, when the third coil 1323 is energized with a counterclockwise current, the fourth coil 1324 is energized with a clockwise current, the fifth coil 1325 is energized with a counterclockwise current, and the sixth coil 1326 is energized with a clockwise current, the third coil 1323, the fourth coil 1324, the fifth coil 1325, and the sixth coil 1326 are subjected to lorentz force under the action of the magnetic field, so that the anti-shake movable portion 12 drives the photosensitive assembly 30 to translate in the negative direction of the Y axis to compensate, so as to implement the translation anti-shake in the Y axis direction of the camera module.

Referring to fig. 16A and 16B, when the third coil 1323 is energized with a clockwise current, the fourth coil 1324 is energized with a counterclockwise current, the fifth coil 1325 is energized with a counterclockwise current, and the sixth coil 1326 is energized with a clockwise current, the third coil 1323, the fourth coil 1324, the fifth coil 1325, and the sixth coil 1326 are subjected to lorentz force under the action of a magnetic field, so that the anti-shake movable portion 12 drives the photosensitive assembly 30 to rotate clockwise around the Z-axis direction to compensate for rotational anti-shake in the Z-axis direction of the camera module.

With continued reference to fig. 16A, arrow I indicates the current direction and symbol F indicates the force applied to the anti-shake coil 132. In the process of rotation anti-shake in the Z-axis direction, the currents flowing into the third coil 1323 and the fifth coil 1325 are the same and opposite in direction, the currents flowing into the fourth coil 1324 and the sixth coil 1326 are the same and opposite in direction, so that the second coil group 134 located on the fourth chip side 324 of the photosensitive element 32 and the third coil group 135 located on the second chip side 322 of the photosensitive element 32 are stressed by the same magnitude but opposite in direction, that is, the fifth coil 1325 and the sixth coil 1326 located on the second chip side 322 of the photosensitive element 32 are stressed by the force along the negative direction of the Y-axis, and the third coil 1323 and the fourth coil 1324 located on the fourth chip side 324 of the photosensitive element 32 are stressed by the force along the positive direction of the Y-axis, thereby realizing the rotation movement of the anti-shake movable portion 12 around the Z-axis direction, and further realizing the rotation anti-shake of the camera module.

Conversely, when the third coil 1323 is energized with a counterclockwise current, the fourth coil 1324 is energized with a clockwise current, the fifth coil 1325 is energized with a clockwise current, and the sixth coil 1326 is energized with a reverse pointer current, the third coil 1323, the fourth coil 1324, the fifth coil 1325, and the sixth coil 1326 are subjected to lorentz force under the action of a magnetic field, so that the anti-shake movable portion 12 drives the photosensitive assembly 30 to rotate counterclockwise around the Z axis direction to compensate, thereby realizing the rotation anti-shake of the camera module in the Z axis direction.

Further, when the anti-shake movable portion 12 drives the photosensitive assembly 30 to translate along the X-axis direction, the first sensing element 161 can sense a significant magnetic field change and feed back the magnetic field change. When the anti-shake movable portion 12 drives the photosensitive assembly 30 to translate along the Y-axis direction and rotate around the Z-axis direction, the first sensing element 161 fails to sense a significant magnetic field change, the second sensing element 162 and the third sensing element 163 can sense a significant magnetic field change, an average value of the sum of the sensing values of the second sensing element 162 and the third sensing element 163 is taken as a compensation value for the magnetic field change translated along the Y-axis direction, and an average value of the difference of the sensing values of the second sensing element 162 and the third sensing element 163 is taken as a compensation value for the magnetic field change rotated around the Z-axis direction, wherein the sensing value is taken as a positive value in the positive direction and a negative value in the negative direction.

According to another aspect of the present invention, there is further provided a driving method of the driving unit 10, wherein the anti-shake movable portion 12 of the driving unit 10 is suspended in the housing chamber 1101 of the anti-shake fixing portion 11, the anti-shake magnet 131 and the anti-shake coil 132 of the anti-shake driving portion 13 are respectively provided in one of the anti-shake fixing portion 11 and the anti-shake movable portion 12, that is, if the anti-shake magnet 131 is provided in the anti-shake fixing portion 11, the anti-shake coil 132 is provided in the anti-shake movable portion 12, and if the anti-shake magnet 131 is provided in the anti-shake movable portion 12, the anti-shake coil 132 is provided in the anti-shake fixing portion 11, wherein the driving method comprises the steps of:

(a) When a current in one direction is applied to the first coil 1321 and a current in the opposite direction is applied to the second coil 1322, the anti-shake movable portion 12 is driven to translate along the X-axis direction in the housing chamber 1101 of the anti-shake fixing portion 11;

(b) When a current in one direction is applied to the third coil 1323 and the fifth coil 1325 and a current in the opposite direction is applied to the fourth coil 1324 and the sixth coil 1326, the anti-shake movable portion 12 is driven to translate in the Y-axis direction in the housing chamber 1101 of the anti-shake fixing portion 11; and

(c) When a current in one direction is applied to the third coil 1323 and the sixth coil 1326 and a current in the opposite direction is applied to the fourth coil 1324 and the fifth coil 1325, the anti-shake movable section 12 is driven to rotate around the Z-axis direction in the housing chamber 1101 of the anti-shake fixing section 11.

According to another aspect of the present invention, the present invention further provides a method for assembling the driving assembly 10, wherein the method comprises the steps of:

(A) Providing a plurality of the anti-shake magnets 131 to one of the anti-shake fixing portion 11 and the anti-shake movable portion 12, and providing a plurality of the anti-shake coils 132 to the other of the anti-shake fixing portion 11 and the anti-shake movable portion 12; and

(B) Suspending the anti-shake movable portion 12 in the housing chamber 1101 of the anti-shake fixing portion 11, and each of the anti-shake magnets 131 and each of the anti-shake coils 132 correspond to each other, to assemble the driving assembly 10.

For example, in the preferred example of the image pickup module shown in fig. 1 to 6, a plurality of the anti-shake magnets 131 are provided to the anti-shake fixing portion 11, respectively, and a plurality of the anti-shake coils 132 are provided to the anti-shake movable portion 12, respectively. In this preferred example of the camera module shown in fig. 8A to 9B, a plurality of the anti-shake magnets 131 are provided to the anti-shake movable portion 12, respectively, and a plurality of the anti-shake coils 132 are provided to the anti-shake fixing portion 11, respectively.

Further, in a preferred example in which the plurality of anti-shake magnets 131 are provided to the anti-shake fixing portion 11 and the plurality of anti-shake coils 132 are provided to the anti-shake movable portion 12, the step (a) further includes the steps of: firstly, the electric connection part 123 and the anti-shake coil 132 are provided on the movable carrier 121, respectively, and secondly, the anti-shake coil 132 is electrically connected to the electric connection part 123. Specifically, the electrical connection portion 123 may be attached to the carrier back surface 1212 of the movable carrier 121, and the anti-shake coil 132 may be attached to the carrier front surface 1212 of the movable carrier 121, and the anti-shake coil 132 and the electrical connection portion 123 may be connected by a connection line.

Alternatively, in a preferred example in which a plurality of the anti-shake magnets 131 are respectively provided to the anti-shake fixing portion 11 and a plurality of the anti-shake coils 132 are respectively provided to the anti-shake movable portion 12, the step (a) further includes the steps of: firstly, the anti-shake coil 132 is attached to the electrical connection portion 123, and secondly, the electrical connection portion 123 is attached to the movable carrier 121. For example, the electrical connection 123 may be attached to the carrier backside 1212 of the movable carrier 121.

Preferably, the assembling method of the present invention further comprises: (C) The magnetic conductive member 14 is covered on the back surface of the anti-shake magnet 131 so as to face the anti-shake coil 132, so that the magnetic field is enhanced by the magnetic conductive member 14 in the direction of the anti-shake coil 132.

For example, in the preferred example of the camera module shown in fig. 1 to 6, the magnetic conductive member 14 is covered over the anti-shake magnet 131, so that the magnetic conductive member 14 can not only strengthen the magnetic field in the direction of the anti-shake coil 132, but also reduce the intensity of the magnetic field that overflows to the lens carrier 21, thereby avoiding magnetic interference to the lens carrier 21. In the preferred example of the camera module shown in fig. 10, the magnetically conductive member 14 is covered under the anti-shake magnet 131, so that the magnetically conductive member 14 can strengthen the magnetic field in the direction of the anti-shake coil 132.

In the step (B), the driving unit 10 may suspend the anti-shake movable portion 12 in the receiving cavity 1101 of the anti-shake fixing portion 11 by means of the magnetic attraction member 15 and the supporting portion 17 cooperating with each other.

For example, in a preferred example in which a plurality of the anti-shake magnets 131 are provided to the anti-shake fixing portion 11 and a plurality of the anti-shake coils 132 are provided to the anti-shake movable portion 12, on the one hand, the driving unit 109 may provide a plurality of the magnetic members 15 on the anti-shake movable portion 12, and these magnetic members 15 and the anti-shake magnets 131 cooperate with each other to generate magnetic attraction in the Z-axis direction, and on the other hand, the holding grooves 1215 of the supporting portion 17 are formed in the movable carrier 121 of the anti-shake movable portion 12, and a part of the balls 122 of the supporting portion 17 are held in the holding grooves 1215, and the other part thereof abuts against the anti-shake fixing portion 11, so that the anti-shake movable portion 12 can be suspended in the housing chamber 1101 of the anti-shake fixing portion 11 by the magnetic members 15 and the supporting portion 17 cooperating with each other.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.

Claims

1. A drive assembly, comprising:

2. The drive assembly according to claim 1, wherein geometric centers of the two anti-shake coils constituting the first coil group coincide with a center of the anti-shake drive section.

3. The drive assembly according to claim 1, wherein the two anti-shake coils constituting the first coil group have a larger size than the two anti-shake coils constituting the second coil group, and the two anti-shake coils constituting the first coil group have a larger size than the two anti-shake coils constituting the third coil group.

4. A drive assembly according to claim 3, wherein the sizes of the two anti-shake coils constituting the second coil group and the sizes of the two anti-shake coils constituting the third coil group are identical.

5. The drive assembly according to claim 1, wherein two of the anti-shake coils constituting the first coil group are defined as a first coil and a second coil, two of the anti-shake coils constituting the second coil group are defined as a third coil and a fourth coil, two of the anti-shake coils constituting the third coil group are defined as a fifth coil and a sixth coil, wherein the first coil and the second coil are disposed at opposite sides in the Y direction, the third coil, the fourth coil, the fifth coil and the sixth coil are disposed at four corners in the X direction, the first coil is disposed perpendicularly to the third coil and the fourth coil, respectively, the second coil is disposed perpendicularly to the fifth coil and the sixth coil, respectively, and the second coil is disposed perpendicularly to the fifth coil and the sixth coil, respectively.

6. The driving assembly according to claim 5, wherein a line connecting a center of the first coil and a center of the second coil passes through a center of the anti-shake driving section and is parallel to an X-axis direction.

7. The drive assembly according to claim 5, wherein a line connecting a center of the first coil and a center of the second coil passes through a center of the anti-shake drive section and is the same as an X-axis direction, and a center of the first coil and a center of the second coil are the same as the X-axis distance.

8. The drive assembly according to any one of claims 1 to 7, wherein the anti-shake magnets of the anti-shake drive section are provided to the anti-shake fixing sections, respectively, and the anti-shake coils are provided to the anti-shake movable sections, respectively.

9. The drive assembly according to any one of claims 1 to 7, wherein the anti-shake magnets of the anti-shake drive section are provided to the anti-shake movable sections, respectively, and the anti-shake coils are provided to the anti-shake fixing sections, respectively.

10. The drive assembly of claim 8, wherein the anti-shake movable portion includes a movable carrier and a set of balls rollably disposed between the movable carrier and the anti-shake fixed portion.

11. The drive assembly of claim 10, wherein the anti-shake movable portion includes an electrical connection portion, wherein the anti-shake coil is connected to the electrical connection portion, the electrical connection portion being secured to the movable carrier.

12. The drive assembly of claim 9, further comprising an electrical connection having a connection opening, wherein the electrical connection is secured to the anti-shake mount, and the connection opening of the electrical connection corresponds to and communicates with the top opening of the anti-shake mount, wherein the anti-shake coil is connected to the electrical connection.

13. The drive assembly of claim 10, further comprising at least one magnetic attraction member, wherein the magnetic attraction member is disposed on the movable carrier, and a position of the magnetic attraction member corresponds to a position of the anti-shake magnet to generate a magnetic attraction force therebetween in a height direction.

14. The drive assembly of claim 11, further comprising at least one magnetic attraction member, wherein the magnetic attraction member is disposed at the electrical connection portion or the magnetic attraction member is disposed between the electrical connection portion and the movable carrier, and a position of the magnetic attraction member corresponds to a position of the anti-shake magnet to generate a magnetic attraction force in a height direction therebetween.

15. The drive assembly of claim 12, wherein the anti-shake movable portion includes a movable carrier and a set of balls rollably disposed between the movable carrier and the anti-shake fixing portion, wherein the drive assembly further includes at least one magnetic attraction member disposed at the anti-shake fixing portion or the magnetic attraction member disposed at the electrical connection portion or the magnetic attraction member disposed between the anti-shake fixing portion and the electrical connection portion, and a position of the magnetic attraction member corresponds to a position of the anti-shake magnet to generate a magnetic attraction force in a height direction therebetween.

16. A camera module, its characterized in that includes:

a photosensitive component;

the drive assembly according to any one of claims 1 to 15, wherein the photosensitive assembly is provided to the anti-shake movable portion, wherein the top opening of the anti-shake fixing portion corresponds to the photosensitive assembly.