CN220020000U - Optical element driving mechanism - Google Patents

Abstract

The utility model discloses an optical element driving mechanism, which comprises a base, a base and a carrier, wherein a first coil group is arranged in the base; the two sides of the base along the optical axis direction are respectively provided with a light shielding hole, and the light shielding holes are aligned with the imaging chip along the optical axis direction; the base is provided with a first magnet group, the first magnet group comprises at least two axial magnets and at least one radial magnet, at least two adjacent axial magnets are arranged along a first direction, the polarities of the axial magnets are reversely arranged along the direction of an optical axis, the radial magnets are positioned between the two axial magnets, the polarities of the radial magnets are arranged along the first direction, and the first direction and the direction of the optical axis are perpendicular to each other; the movable mounting is in accommodation space and with base elastic connection, and the carrier is used for installing the camera lens, and the camera lens aligns with imaging chip along the optical axis direction.

Description

Optical element driving mechanism

Technical Field

The present utility model relates to the field of optical driving, and in particular, to an optical element driving mechanism.

Background

Many electronic devices (such as smart phones or digital cameras) have photographing or video recording functions. The use of these electronic devices is becoming more common and advancing toward a convenient and lightweight design to provide more options for the user.

In general, such a slight shake phenomenon often occurs under a hand-held condition, thereby causing a lens shift of the image pickup apparatus, so that the quality of an image captured by the image sensor is deteriorated. Therefore, the requirements for developing the anti-shake technology function are relatively large in recent years.

However, in the prior art, the optical zooming and optical anti-shake functions are mostly realized through the movement of the carrier, the movement range of the carrier is limited by weight, volume and the like, and the trouble of taking a blurred picture due to hand shake in the shooting process cannot be effectively solved. In addition, the terminal electronic devices in the market are increasingly lightweight, and thus, it is required that the optical element driving mechanism not only can be adapted to the lightweight terminal electronic devices but also has a sufficient driving force, and thus, it is required to develop an optical element driving mechanism having a lightweight and large driving force.

Disclosure of Invention

The present utility model is directed to an optical element driving mechanism to solve the above-mentioned problems.

To solve the above-mentioned technical problem, an embodiment of the present utility model provides an optical element driving mechanism, including:

the imaging device comprises a base, wherein a first coil group is arranged in the base, and the base is used for installing an imaging chip;

the base is provided with an accommodating space and is positioned at the top of the base along the optical axis direction, and the base is movably connected with the base; light shielding holes are respectively formed in two sides of the base along the optical axis direction, and the light shielding holes are aligned with the imaging chip along the optical axis direction; the base is provided with a first magnet group, the first magnet group comprises at least two axial magnets and at least one radial magnet, at least two adjacent axial magnets are arranged along a first direction, the polarities of the axial magnets are reversely arranged along the optical axis direction, the radial magnets are positioned between the two axial magnets, the polarities of the radial magnets are arranged along the first direction, and the first direction and the optical axis direction are perpendicular to each other; and

the carrier can be movably arranged in the accommodating space and is elastically connected with the base, the carrier is used for mounting a lens, and the lens is aligned with the imaging chip along the optical axis direction.

In one embodiment, a plurality of the axial magnets and a plurality of the radial magnets are alternately arranged along the first direction, and polarities of two adjacent axial magnets are reversed.

In one embodiment, the two first magnet sets are located at two sides of the base opposite to each other and opposite to the two first coil sets along the optical axis direction respectively.

In one embodiment, further comprising:

a second coil set connected to one of the carrier and the base; and

the second magnet group is connected with the other one of the carrier and the base, is arranged opposite to the second coil group along a second direction, and has polarities distributed along the optical axis direction; the side face of the second magnet group, which faces the second coil group, is provided with a magnet groove, the magnet groove is positioned between two poles of the second magnet group, and the second direction is perpendicular to the optical axis direction.

In one embodiment, the second coil set is connected to the carrier, and the second magnet set is connected to the base.

In one embodiment, the second coil group surrounds the radial outer side of the carrier, two groups of the second magnet groups and two groups of the first magnet groups are alternately arranged at intervals around the second coil group, and the first direction, the second direction and the optical axis direction are perpendicular to each other.

In one embodiment, the base includes:

the base body is movably connected with the base; and

the shell is detachably connected with the base body and forms the accommodating space, a built-in circuit is arranged in the shell, and the built-in circuit is electrically connected with the second coil assembly.

In one embodiment, further comprising:

the upper reed is positioned at the top of the carrier and is connected with the shell and the carrier;

the lower reed is positioned at the bottom of the carrier and is connected with the seat body and the carrier;

the upper reed is electrically connected with the built-in circuit and the second coil set.

In one embodiment, a damping gel mounting groove for mounting the damping gel is formed in the bottom of the carrier;

the top of pedestal is equipped with the convex cylinder, the cylinder is kept away from the tip of pedestal is located damping glue.

In one embodiment, the base and the base are rollably connected by balls.

By changing the implementation mode of the first magnet group and the shape of the second magnet group, the utility model not only can reduce the weight of the lens driving mechanism, but also can improve the driving force to the carrier and the base, thereby enabling the optical element driving mechanism to adapt to smaller electronic equipment and ensuring enough driving force.

Drawings

Fig. 1 is an exploded view of an optical element driving mechanism of one embodiment of the present utility model.

Fig. 2 is a top view of the housing of the embodiment of fig. 1.

Fig. 3 is a bottom view of the housing of the embodiment of fig. 1.

Fig. 4 is a top view of the housing of the embodiment of fig. 1.

FIG. 5 is an assembled view of the housing, first magnet set, second magnet set, carrier and upper reed of the embodiment of FIG. 1.

FIG. 6 is an assembled view of the housing, first magnet set, second magnet set, carrier and lower reed of the embodiment of FIG. 1.

Fig. 7 is a bottom view of the housing and the first magnet group in the embodiment of fig. 1.

Figure 8 is an assembled view of the housing, first magnet set, carrier and lower reed of the embodiment of figure 1.

Fig. 9 is a cross-sectional view of the lens driving mechanism of the embodiment shown in fig. 1 at different angles in the optical axis direction.

Fig. 10 is a schematic view of a first magnet group and a first coil group according to an embodiment of the present utility model.

Fig. 11 is a schematic diagram of a magnet and a coil in the prior art.

Fig. 12 is a schematic view of a second magnet group and a second coil group according to an embodiment of the present utility model.

Reference numerals: 100. an optical element driving mechanism; 1. a base; 11. a substrate; 12. a circuit board; 13. a first coil group; 14. a bottom ball groove; 15. a gasket; 2. a base; 21. a housing; 22. a base; 23. a top ball groove; 24. a metal sheet; 241. a column; 25. a mounting groove; 26. a built-in circuit; 3. a carrier; 31. a second coil group; 4. an upper reed; 5. a lower reed; 6. a first magnet group; 61. an axial magnet; 62. a radial magnet; 7. a ball; 8. a light shielding hole; 9. a second magnet group; 91. a magnet groove; 101. magnetic field lines; 102. a polarizing region; 103. a magnet; 104. a coil assembly.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present utility model, numerous technical details have been set forth in order to provide a better understanding of the present utility model. However, the technical solutions claimed in the claims of the present utility model can be realized without these technical details and various changes and modifications based on the following embodiments.

Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and variations such as "comprises" and "comprising" will be understood to be open-ended, meaning of inclusion, i.e. to be interpreted to mean "including, but not limited to.

The following detailed description of various embodiments of the present utility model will be provided in connection with the accompanying drawings to provide a clearer understanding of the objects, features and advantages of the present utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the utility model, but rather are merely illustrative of the true spirit of the utility model.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present utility model, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.

The utility model relates to an optical element driving mechanism 100, which comprises a base 1, a base 2, a carrier 3, a first magnet group 6 and a first coil group 13, wherein the base 1 is used for installing an imaging chip and can drive the imaging chip to move along the radial direction so as to realize optical anti-shake. The base 2 is used as a carrier 3. The carrier 3 is used for mounting the lens and can drive the lens to move along the optical axis direction. The first magnet group 6 and the first coil group 13 cooperate to drive the base 1 to move in the radial direction perpendicular to the optical axis direction.

The base 1 and the base 2 are distributed along the optical axis direction Z, and the base 2 is positioned at the top of the base 1 along the optical axis direction Z and can be movably connected with the base 2. The carrier 3 is mounted on the inner wall of the base 2, the lens is mounted on the carrier 3, and the lens and the imaging chip are aligned along the optical axis. When the carrier 3 moves along the optical axis direction, the lens can be driven to focus. The base 2 is provided with a light shielding hole 8 along two sides of the optical axis direction respectively, and under the condition that the lens does not shake, the light shielding hole 8 is aligned with the lens and the imaging chip along the optical axis direction Z and is used for avoiding light entering the lens. When the lens shakes, the first magnet group 6 and the first coil group 13 can be matched to drive the base 1 to move along the radial direction, so as to drive the imaging chip to align with the lens, and the anti-shake function is realized. An optical element driving mechanism 100 according to an embodiment of the present utility model is described in detail below with reference to the accompanying drawings.

The base 1 includes a base plate 11 and a circuit board 12, as shown in fig. 1 and 4, the base plate 11 is rectangular plate-shaped perpendicular to the optical axis direction Z, four corners of the base plate 11 are respectively provided with a boss, the top surface of the boss is provided with bottom ball grooves 14, and each bottom ball groove 14 is respectively provided with a metal gasket 15 attached to the bottom wall of the bottom ball groove 14, so that the balls 7 are prevented from wearing the base plate. It should be understood that no boss may be provided and the bottom ball groove 14 is formed by a depression in the top surface of the base plate 11.

The circuit board 12 is covered to the side of the substrate 11 in the optical axis direction close to the base 2, and in the embodiment shown in fig. 1, the optical axis direction Z is also a vertical direction, i.e., the circuit board 12 covers and is connected to the top surface of the substrate 11. Four corners of the circuit board 12 are respectively provided with avoidance grooves for avoiding four bosses of the substrate 11. In addition, the circuit board 12 is provided with a first coil group 13, and the first coil group 13 can be matched with the first magnet group 6 of the base 2 to drive the base 1 to move along the radial direction, so that the anti-shake effect is achieved. Alternatively, the first coil group 13 may be directly disposed on the top surface of the base 1, or the top surface of the base 1 may be provided with a cavity for accommodating the first coil group 13, so that the circuit board 12 is omitted.

The base 2 has an accommodation space and includes a base body 22 and a housing 21, the base body 22 and the housing 21 are clamped or otherwise connected to each other and form the accommodation space, and side portions of the base body 22 and the housing 21 in the optical axis direction Z are respectively provided with a light shielding hole 8. Wherein, the bottom surface of the seat body 22 is provided with a top ball groove 23, four balls 7 are positioned between the four top ball grooves 23 and the four bottom ball grooves 14, and the seat body 22 is movably connected with the base 1 through the four balls 7. Furthermore, in other embodiments, the base 1 and the base 2 may be slidably connected in the radial direction in other manners, for example, the base 1 and the base 2 are elastically connected by an elastic member, and the base 1 and the base 2 are spaced apart, and the elastic member may support the base 1 and the base 2 to be spaced apart and enable the base 1 to move in the radial direction relative to the base 2, and may also drive the base 1 to return, so the present utility model is not limited to the specific connection manner of the base 1 and the base 2.

A built-in circuit 26 is provided in the housing 21, and the built-in circuit 26 is electrically connectable to an external power source.

The first magnet group 6 is connected to a side portion of the base 22 or the housing 21, and in the embodiment shown in fig. 1 and 2, a mounting groove 25 is formed in the side portion of the base 22, and the mounting groove 25 extends to the bottom of the base 22 along the optical axis direction, and is used for mounting the first magnet group 6, so that the bottom end of the first magnet group 6 is close to the first coil group 13.

The bottom end of the first magnet group 6 in the optical axis direction Z is disposed opposite to the first coil group 13. The first magnet group 6 includes two axial magnets 61 and one radial magnet 62, the two axial magnets 61 are arranged along the first direction X and the polarities are reversely arranged along the optical axis direction Z, that is, the N pole of one axial magnet 61 is located at the bottom end of the axial magnet 61 along the optical axis direction Z, and the S pole of the other axial magnet 61 is located at the bottom end of the axial magnet 61 along the optical axis direction Z. The radial magnets 62 are located between the two axial magnets 61 and the polarities of the radial magnets 62 are distributed along the first direction X, i.e., the N-poles and S-poles of the radial magnets 62 are located at both ends of the first direction X.

In the prior art, as shown in fig. 11, a magnet 103 or a plurality of magnets 103 attracted to each other are generally disposed on a base 22 and aligned with a coil assembly 104 along the optical axis direction. Taking a single magnet 103 and a single coil assembly 104 as an example, as shown in fig. 11, the polarities of the magnet 103 are distributed along a first direction X, that is, the N pole and S pole of the magnet 103 are located at two ends of the first direction X of the magnet 103, and the magnetic field lines 101 formed by the two poles of the magnet 103 are bent downward at two ends far from the first direction X of the magnet 103, so in order to increase the magnetic field lines 101 of the magnet 103 passing vertically through the coil assembly 104, two sides of the coil assembly 104 along the first direction X need to exceed two sides of the magnet 103 along the first direction X.

In the present utility model, as shown in fig. 10, the magnetic field lines 101 formed by the two poles of the two axial magnets 61 at the bottom ends respectively extend from the bottom ends of the two axial magnets 61 directly in the vertical direction Z and then bend towards each other, so that the first coil set 13 is directly arranged at the bottom ends of the two axial magnets 61, so that a large number of magnetic field lines 101 can be received, the driving force to the base 1 is improved, the width of the first coil set 13 along the first direction X can be reduced, and the weight of the first coil set 13 can be further reduced. In addition, the N pole or S pole at the bottom ends of the two axial magnets 61 may form a magnetic field line 101 with the S pole and N pole of the radial magnet 62, and the magnetic field line 101 may also pass through the first coil group 13, thereby further increasing the magnetic flux of the first magnet group 6 passing through the first coil group 13, and the lorentz force between the first magnet group 6 and the first coil group 13, thereby further increasing the driving force to the base 1.

It should be understood that the first magnet group 6 may also include a plurality of axial magnets 61 and a plurality of radial magnets 62, where the plurality of axial magnets 61 and the plurality of radial magnets 62 are alternately arranged along the first direction X, and polarities of two adjacent axial magnets 61 are disposed reversely along the optical axis direction Z, and polarities of each radial magnet 62 are disposed along the first direction X, and the plurality of axial magnets 61 and the plurality of radial magnets 62 cooperate to form more magnetic field lines 101. In addition, a plurality of first coil groups 13 may be provided, each of the first coil groups 13 being disposed opposite to each other in the optical axis direction with respect to the adjacent two axial magnets 61, and the magnetic field lines 101 formed by the adjacent two axial magnets 61 and the radial magnets 62 located between the two axial magnets 61 passing through the corresponding first coil group 13, respectively, so that the lorentz force of the base 1 may be increased.

Further, a plurality of first magnet groups 6 and a plurality of first coil groups 13 may be provided in cooperation, each first magnet group 6 being connected to the base 2, each first coil group 13 being connected to the base 1 and aligned with each first magnet group 6 in the optical axis direction, each first magnet group 6 including at least two axial magnets 61 and at least one radial magnet 62, respectively, or including a plurality of axial magnets 61 and a plurality of radial magnets 62, the number of first magnet groups 6 and 13 being not limited by the present utility model.

In the embodiment shown in fig. 1, the two first magnet groups 6 and the two second magnet groups 9 are arranged at intervals around the optical axis direction Z, the two first magnet groups 6 are located at two sides of the base 2 opposite to each other and are respectively opposite to the two first coil groups 13 along the optical axis direction Z, the two first magnet groups 6 and the two first coil groups 13 cooperate to drive the base 1 to move in the radial direction, and the two second magnet groups 9 and the two second coil groups 31 cooperate to drive the carrier 3 to move in the optical axis direction to adjust the focal length.

The carrier 3 is movably arranged in the accommodating space of the base 2 and is elastically connected with the base 2 through a reset piece. Specifically, the carrier 3 is ring-shaped for mounting a lens, and the lens is aligned with the imaging chip in the optical axis direction. The reset member includes an upper reed 4 and a lower reed 5, the upper reed 4 and the lower reed 5 having elasticity, respectively, the upper reed 4 being located between the upper side of the carrier 3 and the top wall of the housing 21, as shown in fig. 5, the upper reed 4 being connected to the top of the carrier 3 and the inner wall of the housing 21. The lower reed 5 is located between the lower side of the carrier 3 and the housing 22 as shown in fig. 6 and 8, and is connected to the bottom of the carrier 3 and the housing 22. The second coil group 31 is connected to the radially outer side of the carrier 3 and cooperates with the second magnet group 9 of the housing 22 to drive the carrier 3 to move in the optical axis direction. After the carrier 3 moves, the upper reed 4 and the lower reed 5 can drive the carrier 3 to reset in cooperation.

The upper reed 4 is also electrically connected to the built-in circuit 26 and the second coil set 31, and after the built-in circuit 26 of the housing 21 is energized, current can flow into the second coil set 31 via the built-in circuit 26 and the upper reed 4.

It should be understood that the second coil assembly 31 may be connected to the base 2, and the second magnet assembly 9 may be connected to the carrier 3, so long as the carrier 3 can be driven to move.

As a preferred solution, the second coil group 31 is connected to the radial outer side of the carrier 3, or is wound around the outer side of the carrier 3, and the second magnet group 9 is connected to the inner wall of the housing 21 of the base 2 or the side of the base 22, as shown in fig. 12, and the second magnet group 9 is disposed opposite to the second coil group 31 along the second direction Y, and the polarities of the second magnet group 9 are distributed along the optical axis direction Z, that is, the top and bottom ends of the second magnet group 9 along the optical axis direction form polarized regions 102, where the two polarized regions 102 are two poles of the second magnet group 9, and the second direction Y is perpendicular to the optical axis direction Z. In addition, the second magnet group 9 is provided with a magnet groove 91 along the second direction facing the side surface of the second coil group 31, the magnet groove 91 extends along the third direction and is located between two poles of the second magnet group 9, and the third direction is the length direction of the second magnet group 9 and is perpendicular to the second direction and the optical axis direction.

The second magnet group 9 has polarized regions 102 at the top and bottom ends in the optical axis direction, respectively, and magnetic field lines 101 formed by the two polarized regions 102 can pass through the second coil group 31. In addition, two polarized regions 102 having opposite polarities are also provided near the magnet slot 91, and the two polarized regions 102 may form magnetic field lines 101 with the polarized regions 102 at the top and bottom ends of the second magnet group 9 in the optical axis direction, respectively, and the magnetic field lines 101 also pass through the second coil group 31. Now, for the prior art, the magnet slot 91 of the present utility model not only can reduce the weight of the second magnet set 9, but also can increase the magnetic field lines 101 of the second magnet set 9 passing through the second coil set 31, so as to further increase the lorentz magnetic force between the second magnet set 9 and the second coil set 31, thereby improving the driving force to the carrier 3.

In the embodiment shown in fig. 1, the base 2 is in a cuboid shape, and the two first magnet groups 6 and the two second magnet groups 9 are uniformly arranged at intervals around the optical axis direction, that is, the two first magnet groups 6 are connected to two sides of the base 2 that are disposed opposite to each other, and the two second magnet groups 9 are connected to two sides of the base 2 that are disposed opposite to each other, that is, the length extending direction of the first magnet groups 6 is perpendicular to the length extending direction of the second magnet groups 9. In this case, the third direction and the first direction are parallel, i.e., the first direction, the second direction, and the optical axis direction are perpendicular to each other. It should be understood that in other embodiments, for example, the base 2 is a cylinder having an accommodating space, that is, the side of the base 2 is a frame shape of a cylinder, and the plurality of second magnet groups 9 and the plurality of first magnet groups 6 are connected to the inner wall of the housing 21, at which time the third direction intersects the first direction. That is, no matter how the second magnet group 9 is arranged, as long as the two poles thereof are located at the top and bottom ends in the optical axis direction, the magnet grooves 91 may be located at the side of the second magnet group 9 facing the second coil group 31 and between the two poles.

The bottom surface of the carrier 3 facing the seat body 22 is also provided with a plurality of damping glue mounting grooves, and damping glue is arranged in each damping glue mounting groove. The metal sheet 24 is further disposed in the base 22, a portion of the metal sheet 24 is mounted in the base 22, a portion of the metal sheet extends from the top surface of the base 22 along the direction perpendicular to the base 22 to form a plurality of protruding columns 241, the ends of the columns 241 away from the base 22 are respectively inserted into damping members in the damping glue mounting grooves, and when the carrier 3 moves along the optical axis direction, the columns 241 and the damping glue cooperate to buffer the movement of the carrier 3, so that the carrier 3 is prevented from touching the base 22.

In addition, the other part of the metal sheet 24 is exposed to the inside of the top ball groove 23 and forms the top wall of the top ball groove 23, and the balls 7 can be prevented from wearing the seat body 22 when the balls 7 are rotated.

The present utility model can reduce the weight of the optical element driving mechanism 100 and can improve the driving force to the carrier 3 and the base 1 by changing the shape of the first magnet group 6 and the second magnet group 9, thereby adapting the optical element driving mechanism 100 to smaller electronic devices and ensuring sufficient driving force.

While the preferred embodiments of the present utility model have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims (10)

1. An optical element driving mechanism, comprising:

the imaging device comprises a base, wherein a first coil group is arranged in the base, and the base is used for installing an imaging chip;

the base is provided with an accommodating space and is positioned at the top of the base along the optical axis direction, and the base is movably connected with the base; light shielding holes are respectively formed in two sides of the base along the optical axis direction, and the light shielding holes are aligned with the imaging chip along the optical axis direction; the base is provided with a first magnet group, the first magnet group comprises at least two axial magnets and at least one radial magnet, at least two adjacent axial magnets are arranged along a first direction, the polarities of the axial magnets are reversely arranged along the optical axis direction, the radial magnets are positioned between the two axial magnets, the polarities of the radial magnets are arranged along the first direction, and the first direction and the optical axis direction are perpendicular to each other; and

the carrier can be movably arranged in the accommodating space and is elastically connected with the base, the carrier is used for mounting a lens, and the lens is aligned with the imaging chip along the optical axis direction.

2. The optical element driving mechanism according to claim 1, wherein a plurality of the axial magnets and a plurality of the radial magnets are alternately arranged in the first direction, and polarities of two adjacent axial magnets are reversed.

3. The optical element driving mechanism according to claim 2, wherein the two first magnet groups are located on both sides of the base opposite to each other and opposite to the two first coil groups in the optical axis direction, respectively.

4. The optical element driving mechanism according to claim 1, further comprising:

a second coil set connected to one of the carrier and the base; and

the second magnet group is connected with the other one of the carrier and the base, is arranged opposite to the second coil group along a second direction, and has polarities distributed along the optical axis direction; the side face of the second magnet group, which faces the second coil group, is provided with a magnet groove, the magnet groove is positioned between two poles of the second magnet group, and the second direction is perpendicular to the optical axis direction.

5. The optical element driving mechanism according to claim 4, wherein the second coil group is connected to the carrier, and the second magnet group is connected to the base.

6. The optical element driving mechanism according to claim 5, wherein the second coil group surrounds a radially outer side of the carrier, two sets of the second magnet group and two sets of the first magnet group are alternately arranged at intervals around the second coil group, and the first direction, the second direction, and the optical axis direction are perpendicular to each other.

7. The optical element driving mechanism according to claim 6, wherein the base includes:

the base body is movably connected with the base; and

the shell is detachably connected with the base body and forms the accommodating space, a built-in circuit is arranged in the shell, and the built-in circuit is electrically connected with the second coil assembly.

8. The optical element driving mechanism according to claim 7, further comprising:

the upper reed is positioned at the top of the carrier and is connected with the shell and the carrier;

the lower reed is positioned at the bottom of the carrier and is connected with the seat body and the carrier;

the upper reed is electrically connected with the built-in circuit and the second coil set.

9. The optical element driving mechanism according to claim 7, wherein a damping gel mounting groove for mounting a damping gel is provided at a bottom of the carrier;

the top of pedestal is equipped with the convex cylinder, the cylinder is kept away from the tip of pedestal is located damping glue.

10. The optical element driving mechanism according to claim 9, wherein the base and the base are rollably connected by balls.