CN214586186U - Optical element driving mechanism - Google Patents

Abstract

The present disclosure provides an optical element driving mechanism including: a fixed part, a movable part and a driving component. The movable part is connected with an optical element and moves relative to the fixed part. The driving component drives the movable part to move along a first direction relative to the fixed part along an optical axis. The optical element driving mechanism can effectively improve the stability and the durability of the optical element driving mechanism.

Description

Optical element driving mechanism

Technical Field

The present disclosure relates to a driving mechanism, and more particularly, to an optical element driving mechanism.

Background

With the development of technology, many electronic devices (such as notebook computers, smart phones, or digital cameras) have a function of taking pictures or recording videos. The use of these electronic devices is becoming more common and the design direction of these electronic devices is being developed to be more convenient and thinner to provide more choices for users.

The electronic device with the photographing or video recording function is usually provided with a driving mechanism to drive an Optical element (such as a lens) to move along an Optical axis, so as to achieve the functions of Auto Focus (AF) or Optical Image Stabilization (OIS). However, the trend of mobile devices is to have better stability and higher durability, so how to effectively improve the stability and durability is an important issue.

SUMMERY OF THE UTILITY MODEL

An embodiment of the present disclosure provides an optical element driving mechanism including: a fixed part, a movable part and a driving component. The movable part is connected with an optical element and moves relative to the fixed part. The driving component drives the movable part to move along a first direction relative to the fixed part along an optical axis.

According to some embodiments of the present disclosure, the fixing portion includes an outer cover and a base, the base includes a body and a plurality of protruding structures, and the base is connected to the outer cover through the protruding structures. In the first direction, the distance between a first surface of the body facing the movable part and the movable part is different from the distance between a second surface of the protruding structure facing the movable part and the movable part.

In some embodiments, the cover and the base are fixed by a first adhesive element and a second adhesive element, and the first adhesive element and the second adhesive element are made of different materials.

In some embodiments, the fixing portion further includes a conducting member disposed on the base, and the conducting member has a plurality of extending structures. The extension structure at least partially overlaps the projection structure as viewed in the first direction. In some embodiments, the extension structure is not exposed outside the projection structure.

According to some embodiments of the present disclosure, the optical element driving mechanism further comprises two sensing elements, wherein the conducting member comprises a first electrical connection element and a second electrical connection element. The sensing elements are arranged on the base and are respectively electrically connected with the first electrical connection assembly and the second electrical connection assembly. In the first direction, the distance between a third surface of the sensing element far away from the movable part and the movable part is different from the distance between a fourth surface of the body far away from the movable part and the movable part.

In some embodiments, the first electrical connection element and the second electrical connection element each have a connection portion, a lifting portion and an extension portion, and each connection portion is electrically connected to one of the sensing elements. One end of the lifting part is connected with the connecting part, and the other end of the lifting part is connected with the extending part. The connecting part and the extending part do not overlap when viewed along a second direction perpendicular to the first direction. When viewed along the second direction, each sensing element at least partially overlaps the respective lifting portion, each sensing element at least partially overlaps the respective extending portion, and each sensing element does not overlap the respective connecting portion.

In some embodiments, the conducting member further comprises a third electrical connection element electrically connected to the driving element. The first electrical connection assembly, the second electrical connection assembly and the third electrical connection assembly are electrically independent from each other.

In some embodiments, the optical element driving mechanism further includes a plurality of insulating elements disposed on the third surface of the sensing element and connecting the sensing element and the base. Viewed along the first direction and along a second direction perpendicular to the first direction, the insulating element overlaps the sensing element.

In some embodiments, the insulating element covers the ends of the third electrical connection assembly and connects the cover and the base.

According to some embodiments of the present disclosure, the driving assembly includes a coil member electrically connected to the conducting member. The coil component comprises a coil and a coil bearing seat, wherein the coil is arranged on the coil bearing seat, and the coil bearing seat is connected with the base of the fixing part. The coil bearing seat is provided with at least one winding post, and at least part of the coil is wound on the winding post. The portion of the coil wound on the winding post is connected to a conductive member provided on the base by welding.

In some embodiments, the coil carrier has two winding posts disposed on the same side of the coil carrier. The winding direction of the coil on the winding post is around the first direction.

In other embodiments, the winding direction of the coil on the winding post is around a second direction perpendicular to the first direction.

In some embodiments, the coil carrier has a winding structure. In the first direction, the distance between a fifth surface of the winding structure facing the movable part and the distance between a sixth surface of the coil facing the movable part and the movable part are different.

In some embodiments, the fifth surface of the winding structure is closer to the movable portion than the sixth surface of the coil.

In some embodiments, an adhesion element is arranged between the winding structure and the coil, and the winding structure is fixed with the coil through the adhesion element. Viewed along a second direction perpendicular to the first direction, the connecting element, the winding structure and the coil at least partially overlap.

The optical element driving mechanism can effectively improve the stability and the durability of the optical element driving mechanism.

Drawings

The present disclosure will become more apparent from the detailed description given below and the accompanying drawings. It is emphasized that, in accordance with the standard practice in the art, the various features are not drawn to scale and are used for illustrative purposes only. In fact, the dimensions of the various features may be arbitrarily expanded or reduced for clarity of presentation.

Fig. 1 is an exploded view of an optical element drive mechanism, according to some embodiments of the present disclosure.

Fig. 2 is a bottom view of an optical element drive mechanism, according to some embodiments of the present disclosure.

FIG. 3 is a cross-sectional view, taken along line 6-A-6-A' in FIG. 2, illustrating a sensing element disposed in a base, according to some embodiments of the present disclosure.

Fig. 4 is a partial schematic view of a base and a pass-through member according to some embodiments of the present disclosure.

Fig. 5 is a schematic view of a coil member disposed on a base, according to some embodiments of the present disclosure.

Fig. 6 is a cross-sectional view of the coil member taken along the line 6-B-6-B' in fig. 5, according to some embodiments of the present disclosure.

Description of reference numerals:

6-10 optical element driving mechanism

6-100 parts of fixing part

6-110 parts of outer cover

6-120 parts of base

6-121: main body

6-125 protruding structure

6-130 conducting member

6-131 first electrical connection assembly

6-131A connecting part

6-131B lifting part

6-131C extension

6-132 second electrical connection component

6-132A connecting part

6-132B lifting part

6-132C extension

6-133. third electrical connection assembly

6-135 of extension structure

6-137 insulating component

6-200 parts of movable part

6-210 lens bearing seat

6-300 drive assembly

6-310 coil component

6-311 coil

6-313 coil bearing seat

6-313A winding post

6-313B winding structure

6-320 driving magnetic element

6-330 circuit board

6-400 sense element

6-500 optical element

6-A1 following element

6-A2 following element

6-A3 following element

6-D1 first Direction

6-D2 second Direction

6-O optical axis

6-S1 first surface

6-S2 second surface

6-S3 third surface

6-S4 fourth surface

6-S5 fifth surface

6-S6 sixth surface

Detailed Description

The optical element driving mechanism of the embodiment of the present disclosure is explained below. However, it should be readily appreciated that the disclosed embodiments provide many suitable concepts that can be embodied in a wide variety of specific contexts. The specific embodiments disclosed are merely illustrative of specific ways to make and use the disclosure, and do not limit the scope of the disclosure.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Please first refer to fig. 1. Fig. 1 is an exploded view of optical element drive mechanisms 6-10, according to some embodiments of the present disclosure. As shown in FIG. 1, in some embodiments, the optical element driving mechanism 6-10 is used for driving an optical element 6-500, and mainly includes a fixed portion 6-100, a movable portion 6-200, a driving assembly 6-300, and two sensing elements 6-400. The movable part 6-200 comprises a lens bearing seat 6-210, the lens bearing seat 6-210 can be connected with the optical element 6-500, and the movable part 6-200 and the optical element 6-500 are driven to move relative to the fixed part 6-100 by a driving assembly 6-300. The moving direction of the movable part 6-200 and the optical element 6-500 is, for example, along the optical axis 6-O in the first direction 6-D1, so as to achieve the function of auto-focusing or optical anti-shake.

The fixing portion 6-100 includes a cover 6-110, a base 6-120 and a conducting member 6-130. In the embodiment of the present disclosure, the conduction member 6 to 130 is provided at the base 6 to 120, for example: by means of Insert Molding (Insert Molding). The conducting members 6-130 may be made of metal or other conductive materials, and may be connected to an external circuit assembly (not shown) to supply power to the optical element driving mechanism 6-10 for control and the like. In the embodiment shown in fig. 1, the two sensing elements 6-400 of the optical element driving mechanism 6-10 are disposed on the base 6-120, and power is supplied to the sensing elements 6-400 by connecting with the conducting members 6-130, so as to achieve the effect of sensing the moving parts 6-200. In some embodiments, the sensing device 6-400 can be used to sense the position of the movable portion 6-200 and the optical device 6-500, and the optical device driving mechanism 6-10 can be controlled according to the sensing result, so as to achieve auto-focusing or optical anti-shake. The sensing elements 6-400 may be, for example, Hall sensors (Hall sensors), magneto-resistive sensors (MR sensors), magnetic flux sensors (Fluxgate), Optical position sensors, Optical encoders (Optical encoders), etc. to detect the displacement of the Optical elements 6-500 for auto-focus or Optical anti-shake control.

Please refer to fig. 2. Fig. 2 is a bottom view of the optical element drive mechanism 6-10, according to some embodiments of the present disclosure. As shown in fig. 2, the conductive members 6-130 include a first electrical connection assembly 6-131, a second electrical connection assembly 6-132, and a third electrical connection assembly 6-133. The first electrical connection components 6-131 and the second electrical connection components 6-132 can be electrically connected to a sensing element 6-400 respectively, and the third electrical connection components 6-133 can be electrically connected to the driving components 6-300 respectively. As shown in FIG. 2, one end of the third electrical connection assembly 6-133 can be exposed at the opening in the center of the base 6-120, thereby electrically connecting the driving assembly 6-300 (e.g., the coil member 6-310 in FIG. 5).

The first electrical connection elements 6-131, the second electrical connection elements 6-132, and the third electrical connection elements 6-133 may be electrically independent from each other. However, in some other embodiments, the first electrical connection elements 6-131, the second electrical connection elements 6-132, and the third electrical connection elements 6-133 may also have electrical connection relationships therebetween, such as: the first electrical connection elements 6-131 and the second electrical connection elements 6-132 may be commonly connected to an external circuit (not shown).

Please refer to fig. 3. FIG. 3 is a cross-sectional view of the sensing element 6-400 disposed in the body 6-121 of the base 6-120, taken along line 6-A-6-A' of FIG. 2, according to some embodiments of the present disclosure. As shown in FIG. 3, in the first direction 6-D1, the end of the sensing element 6-400 away from the movable portion 6-200 has a third surface 6-S3, and the end of the body 6-121 of the base 6-120 away from the movable portion 6-200 has a fourth surface 6-S4. The distance between the third surface 6-S3 and the activity portion 6-200 and the distance between the fourth surface 6-S4 and the activity portion 6-200 are different, as viewed in the second direction 6-D2. In some embodiments according to the present disclosure, the third surface 6-S3 of the sensing element 6-400 is closer to the movable part 6-200 than the fourth surface 6-S4 of the body 6-121. It should be noted that in some embodiments of the present disclosure, both sensing elements 6-400 are arranged in the manner described above. In some other embodiments, the two sensing elements 6-400 may be arranged differently.

Further, FIG. 3 shows the arrangement relationship between the first electrical connection assembly 6-131 of the conducting members 6-130 and one of the sensing elements 6-400. The first electrical connection assembly 6-131 may have a connection portion 6-131A, a lifting portion 6-131B and an extension portion 6-131C. The connecting portion 6-131A is located near one end of the sensing element 6-400 and electrically connected to the sensing element 6-400. The lifting part 6-131B is positioned between the connecting part 6-131A and the extending part 6-131C, and two ends of the lifting part 6-131B are respectively connected with the connecting part 6-131A and the extending part 6-131C. The extensions 6-131C may be electrically connected to an external circuit (not shown), for example. As shown in FIG. 3, connecting portion 6-131A and extending portion 6-131C do not overlap, i.e., connecting portion 6-131A and extending portion 6-131C are located in different planes, as viewed along second direction 6-D2, which is perpendicular to first direction 6-D1. The connecting portion 6-131A of the first electrical connection assembly 6-131 is lifted to a plane different from the plane of the extending portion 6-131C in cooperation with the arrangement of the sensing element 6-400, so that the sensing element 6-400 is prevented from contacting other modules (not shown) which may be arranged below the base 6-120, and interference is avoided. As shown in FIG. 3, when viewed along the second direction 6-D2, the sensing element 6-400 at least partially overlaps the lifting portion 6-131B, the sensing element 6-400 also at least partially overlaps the extending portion 6-131C, and the sensing element 6-400 does not overlap the connecting portion 6-131A.

According to some embodiments of the present disclosure, the relationship between the other sensing element 6-400 and the second electrical connection element 6-132 is the same as the first electrical connection element 6-131 and the sensing element 6-400 shown in FIG. 3. The first electrical connection assembly 6-132 may have a connection portion 6-132A, a raised portion 6-132B, and an extension portion 6-132C. The connecting portion 6-132A is located near one end of the other sensing element 6-400 and is electrically connected with the other sensing element 6-400. The lifting parts 6-132B are positioned between the connecting parts 6-132A and the extending parts 6-132C, and two ends of the lifting parts 6-132B are respectively connected with the connecting parts 6-132A and the extending parts 6-132C. Viewed in a second direction 6-D2 perpendicular to the first direction 6-D1, the connecting portion 6-132A does not overlap the extending portion 6-132C, the other sensing element 6-400 at least partially overlaps the raised portion 6-132B, the other sensing element 6-400 also at least partially overlaps the extending portion 6-132C, and the other sensing element 6-400 does not overlap the connecting portion 6-132A.

In addition, as shown in fig. 2, in some embodiments of the present disclosure, the first electrical connection elements 6-131 and the second electrical connection elements 6-132 may each include four sets of connection portions 6-131A and 6-132A, lifting portions 6-131B and 6-132B, and extension portions 6-131C and 6-132C, and both are electrically connected to the sensing elements 6-400, providing control of different axial directions or different electrodes.

Please refer to fig. 2 and fig. 3. According to some embodiments of the present disclosure, a plurality of insulating members 6-137 are disposed on the base 6-120. Some of the insulating elements 6-137 are disposed at the end of the third electrical connection elements 6-133 near the outside of the optical element driving mechanism 6-10, so as to prevent the third electrical connection elements 6-133 from contacting other external elements (not shown) and causing interference, and to provide the connection between the cover 6-110 and the base 6-120. Additional insulating elements 6-137 are disposed on the third surface 6-S3 of the sensing element 6-400 to provide a connection between the sensing element 6-400 and the base 6-120 and to prevent the sensing element 6-400 from interfering with other components. The insulating member 6-137 disposed on the third surface 6-S3 of the sensing member 6-400 overlaps the sensing member 6-400 as viewed in the second direction 6-D2, and as shown in FIG. 3, the insulating member 6-137 does not protrude out of the base 6-120, which facilitates miniaturization of the optical element driving mechanism 6-10. In these embodiments, the insulating elements 6-137 may be materials without conductive properties, such as: glue, etc. The provision of the insulating member 6-137 helps to prevent a short-circuit situation of the optical element driving mechanism 6-10.

Please refer to fig. 4. Fig. 4 is a partial schematic view of the base 6-120 and the pass device 6-130 according to some embodiments of the present disclosure. In the embodiment shown in FIG. 4, the base 6-120 includes a body 6-121 and a plurality of projection structures 6-125. The body 6-121 of the base 6-120 is formed integrally with the protruding structure 6-125, and the base 6-120 may for example be made of plastic. As shown in FIG. 4, in the first direction 6-D1, the body 6-121 of the base 6-120 has a first surface 6-S1 at the end facing the movable portion 6-200, and the protruding structure 6-125 has a second surface 6-S2 at the end facing the movable portion 6-200. The distance between the first surface 6-S1 and the mobile portion 6-200 and the distance between the second surface 6-S2 and the mobile portion 6-200 are different, as viewed in the second direction 6-D2. In some embodiments according to the present disclosure, the first surface 6-S1 of the body 6-121 is closer to the movable portion 6-200 than the second surface 6-S2 of the protruding structure 6-125. In some embodiments, the base 6-120 is connected to the cover 6-110 by the tab structure 6-125, for example, as shown in FIG. 2, the tab structure 6-125 and the cover 6-110 can be adhered by the adhesive element 6-A1 (the first adhesive element). In some embodiments of the present disclosure, then, the component 6-A1 may be solder or other suitable material.

The conducting member 6-130 includes a plurality of extending structures 6-135, and the extending structures 6-135 can extend outward from the first electrical connection assembly 6-131, the second electrical connection assembly 6-132, or the third electrical connection assembly 6-133 near the outside of the optical element driving mechanism 6-10. In some embodiments according to the present disclosure, the extension structure 6-135 is not exposed outside the protrusion structure 6-125 of the base 6-120, for example, the extension structure 6-135 may be bent downward according to the shape of the protrusion structure 6-125, so that the extension structure 6-135 may be completely embedded in the protrusion structure 6-125. In some embodiments, the extension structures 6-135 at least partially overlap the projection structures 6-125 as viewed in the first direction 6-D1. According to some embodiments of the present disclosure, the base 6-120 made of, for example, plastic may be strengthened by extending the extension structure 6-135 of the conducting member 6-130 made of, for example, metal into the protrusion structure 6-125 of the base 6-120, so that the optical element driving mechanism 6-10 may not be broken or damaged from the protrusion structure 6-125 of the base 6-120 when being collided or impacted.

It should be noted that, as shown in FIG. 2, in addition to being connected between the protrusion structures 6-125 and the covers 6-110 by the attachment member 6-A1, the seam between the cover 6-110 and the base 6-120 may be filled with an attachment member 6-A2 (second attachment member). The material of the following element 6-A2 is different from that of the following element 6-A1, for example, the following element 6-A2 has higher fluidity and can fill the gap between the cover 6-110 and the base 6-120, after the following element 6-A2 is cured, a high-sealing dustproof effect is achieved, and dust or impurities from the outside are prevented from entering the optical element driving mechanism 6-10 to affect the operation and the optical effect.

Please refer to fig. 1 and 5. As shown in FIG. 1, the driving assembly 6-300 includes a coil member 6-310, a driving magnetic element 6-320 and a circuit board 6-330. Fig. 5 is a schematic view of a coil member 6-310 disposed on a base 6-120, according to some embodiments of the present disclosure. As shown in FIG. 5, the coil member 6-310 may include a coil 6-311 and a coil carrier 6-313, the coil 6-311 being disposed on the coil carrier 6-313. In some embodiments of the present disclosure, the coil member 6-310 is connected to the circuit board 6-330 through the coil carrier 6-313, and the coil 6-311 is electrically connected to the circuit board 6-330, wherein the coil carrier 6-313 and the circuit board 6-330 can be connected through glue or similar adhesive. In some other embodiments, the coil carrier 6-313 may be directly disposed on the base 6-120 of the fixing portion 6-100 (e.g., by glue or the like), and the coil 6-311 may be electrically connected to the conducting member 6-130 on the base 6-120, for example: is electrically connected to the third electrical connection members 6-133 of the conductive members 6-130. The electrical connection of the coils 6-311 can be achieved by soldering or conductive silver paste, for example: the coil 6-311 may be soldered to the circuit board 6-330 or the conducting member 6-130.

In the embodiment shown in fig. 5, the coil carrier 6-313 has two winding legs 6-313A, it being understood that the number of winding legs 6-313A is not intended to be limiting, and in other embodiments the coil carrier 6-313 may have one, three or any number of winding legs 6-313A. The ends of the coil 6-311 may be wound on the winding legs 6-313A, for example: the starting end and the terminal end of the coil 6-311 can be wound on the two winding posts 6-313A, respectively. The coil 6-311 may be soldered to the conductive member 6-130 provided at the base 6-120 or to the circuit board 6-330 by a portion wound on the bobbin 6-313A. In some embodiments of the present disclosure, the two winding posts 6-313A are disposed on the same side of the coil supporting base 6-313, and the two winding posts 6-313A are disposed in parallel with each other. In some other embodiments, the winding posts 6-313A can be disposed on different sides of the coil carrier 6-313, and the winding posts 6-313A can be disposed non-parallel. Further, in the embodiment shown in fig. 5, the winding direction of the coil 6-311 on the winding leg 6-313A is around the second direction 6-D2. In other embodiments, the winding direction of the coil 6-311 on the winding leg 6-313A may be around the first direction 6-D1. Also, in an embodiment including a plurality of winding posts 6-313A, the winding direction of each winding post 6-313A may be uniform. In some other embodiments including a plurality of winding legs 6-313A, the winding direction of each winding leg 6-313A may not be uniform.

In the embodiment shown in fig. 5, the optical element driving mechanism 6-10 has only a single substantially rectangular coil member 6-310, it being understood that the number and shape of the coil members 6-310 is not intended to be limiting, in other embodiments the optical element driving mechanism 6-10 may comprise one or more coil members 6-310, and the coil members 6-310 may have different shapes. For example, in some embodiments, there may be two coil members 6-310 disposed on opposite or adjacent sides of the base 6-120 or circuit board 6-330; in other embodiments, there may be four coil members 6-310 disposed on four sides of the base 6-120 or the circuit board 6-330. Further, in some embodiments, the coil members 6-310 may be L-shaped and disposed on adjacent sides of the base 6-120 or the circuit board 6-330. In other words, a suitable solution can be provided according to different requirements in practice by changing the shape or number of the coil carriers 6-313 of the coil members 6-310. Also, the coil carrier 6-313 can be made of, for example, plastic, so that the design can be changed relatively easily without excessively complicated manufacturing processes.

Please refer to fig. 6. Fig. 6 is a cross-sectional side view of the coil member 6-310 taken along line 6-B-6-B' in fig. 5, according to some embodiments of the present disclosure. In the embodiment shown in fig. 6, the coil carrier 6-313 of the coil member 6-310 has a winding structure 6-313B, and the coil 6-311 may be wound on the winding structure 6-313B in any suitable direction. In the first direction 6-D1, the end of the winding structure 6-313B facing the movable part 6-200 has a fifth surface 6-S5, and the end of the coil 6-311 facing the movable part 6-200 has a sixth surface 6-S6. The distance between the fifth surface 6-S5 and the movable part 6-200 and the distance between the sixth surface 6-S6 and the movable part 6-200 are different as viewed in the second direction 6-D2. In some embodiments according to the present disclosure, the fifth surface 6-S5 of the winding structure 6-313B is closer to the movable part 6-200 than the sixth surface 6-S6 of the coil 6-311. In these embodiments, for example, when the driving magnetic element 6-320 connected to the movable portion 6-200 moves along with the movable portion 6-200 relative to the fixed portion 6-100 (and thus relative to the coil member 6-310 disposed on the fixed portion 6-100), even if the driving magnetic element 6-320 is located closest to the coil member 6-310, the driving magnetic element 6-320 will not collide with the coil 6-311, but will only contact the portion of the winding structure 6-313B protruding from the coil 6-311. Therefore, unnecessary friction and collision can be avoided, the integrity of the coils 6-311 in the operation process can be kept, and the stability and the durability of the optical element driving mechanism 6-10 can be improved. In some embodiments, the coils 6-311 may be made of metal wire or may be other suitable materials.

In the embodiment of the present disclosure, the winding structure 6-313B has three convex structures with gaps therebetween, as shown in fig. 6. The component 6-A3 can be filled into the gap, thereby fixing the winding structure 6-313B and the coil 6-311 wound on the periphery. Viewed in the second direction 6-D2, the element 6-A3, the wire winding structure 6-313B and the coil 6-311 at least partially overlap. It should be appreciated that although the winding structure 6-313B is shown in fig. 6 as having three raised projections, in some other embodiments, the winding structure 6-313B may have one, two, or any suitable number of raised projections.

According to some embodiments of the present disclosure, disposing the coil 6-311 on the coil carrier 6-313 can reduce the manufacturing cost, for example: compared with the method of etching the coil on a Flexible Printed Circuit (FPC), the method has the advantage of low cost of directly winding the wire on the coil carrier 6-313. In addition, since the coils 6-311 according to the present disclosure do not need to be subjected to an etching process, the wire diameters of the coils 6-311 are relatively uniform, the number of turns of the coils can be increased, and the resistance is low. With low resistance, the driving force of the motor can be increased, so that the optical element driving mechanism 6-10 has better performance. Further, according to some embodiments of the present disclosure, in the assembly process, the coil 6-311 is first disposed on the coil bearing seat 6-313, and then the coil bearing seat 6-313 is disposed on the base 6-120 or the circuit board 6-330, thereby avoiding a cumbersome assembly process of directly disposing or winding the coil 6-311 on the base 6-120 or the circuit board 6-330, and improving the assembly efficiency. Moreover, the coils 6-311 can be provided in different sizes or shapes by changing the shape or design of the coil carrier 6-313, which can provide beneficial solutions according to different requirements.

In the optical element driving mechanism 6-10 according to the present disclosure, the sensing element 6-400 is disposed on a surface different from the surface of the base 6-120, the extending structure 6-135 of the conducting member 6-130 is extended into the protruding structure 6-125 of the base 6-120, and the coil bearing seat 6-313 of the coil member 6-310, so as to prevent the optical element driving mechanism 6-10 from short-circuiting and enhance the strength of the whole structure, and provide a suitable solution according to different requirements, thereby achieving the purpose of improving the stability and durability of the optical element driving mechanism 6-10.

Although embodiments of the present disclosure and their advantages have been disclosed above, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the disclosure. Moreover, the scope of the present disclosure is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification, but rather, the process, machine, manufacture, composition of matter, means, methods and steps, presently existing or later to be developed, that will be obvious to one having the benefit of the present disclosure, may be utilized in the practice of the present disclosure. Accordingly, the scope of the present disclosure includes the processes, machines, manufacture, compositions of matter, means, methods, and steps described above. In addition, each claim constitutes a separate embodiment, and the scope of protection of the present disclosure also includes combinations of the respective claims and embodiments.

Claims (20)

1. An optical element driving mechanism, comprising:

a fixed part; the method comprises the following steps:

an outer cover including a sidewall having a plate-like structure; and

a base including a body and a plurality of protruding structures corresponding to the sidewalls;

a movable part connected with an optical element and moving relative to the fixed part; and

the driving component drives the movable part to move along an optical axis in a first direction relative to the fixed part.

2. The optical element driving mechanism as claimed in claim 1, wherein the base is connected to the cover by the plurality of protruding structures, and in the first direction, a distance between a first surface of the body facing the movable portion and the movable portion is different from a distance between a second surface of the plurality of protruding structures facing the movable portion and the movable portion.

3. The optical element driving mechanism as claimed in claim 2, wherein the cover and the base are fixed by a first adhesive member and a second adhesive member, the first adhesive member and the second adhesive member having different materials.

4. The optical element driving mechanism as claimed in claim 2, wherein the fixing portion further comprises a conducting member disposed on the base, and the conducting member has a plurality of extending structures, wherein the plurality of extending structures at least partially overlap with the plurality of protruding structures as viewed along the first direction.

5. The optical element driving mechanism as claimed in claim 4, wherein the plurality of extending structures are not exposed outside the plurality of protruding structures.

6. The optical element driving mechanism as claimed in claim 4, further comprising two sensing elements, wherein the conducting member comprises a first electrical connection component and a second electrical connection component, the two sensing elements are disposed on the base and electrically connected to the first electrical connection component and the second electrical connection component, respectively, and wherein a distance between a third surface of the two sensing elements away from the movable portion and a distance between a fourth surface of the body away from the movable portion and the movable portion are different in the first direction.

7. The optical element driving mechanism according to claim 6, wherein the first electrical connecting element and the second electrical connecting element each have a connecting portion, a lifting portion and an extending portion, each connecting portion is electrically connected to one of the two sensing elements, one end of the lifting portion is connected to the connecting portion, the other end of the lifting portion is connected to the extending portion, and the connecting portion and the extending portion do not overlap when viewed along a second direction perpendicular to the first direction.

8. The optical element driving mechanism as claimed in claim 7, wherein each of the two sensing elements at least partially overlaps the respective lifting portion and each of the two sensing elements at least partially overlaps the respective extending portion as viewed in the second direction.

9. An optical element driving mechanism according to claim 7, wherein each of the two sensing elements does not overlap the respective connecting portion as viewed in the second direction.

10. The optical element driving mechanism according to claim 6, wherein the conducting member further comprises a third electrical connection element electrically connected to the driving element, wherein the first electrical connection element, the second electrical connection element and the third electrical connection element are electrically independent from each other.

11. The optical element driving mechanism as claimed in claim 10, further comprising a plurality of insulating elements disposed on the third surfaces of the two sensing elements, connecting the two sensing elements and the base, and overlapping the two sensing elements as viewed in the first direction and in a second direction perpendicular to the first direction.

12. The optical element driving mechanism as claimed in claim 11, wherein the plurality of insulating elements cover a plurality of ends of the third electrical connecting element and connect the cover and the base.

13. The optical element driving mechanism as claimed in claim 4, wherein the driving assembly comprises a coil member electrically connected to the conducting member, and the coil member comprises a coil and a coil carrier, wherein the coil is disposed on the coil carrier, and the coil carrier is connected to the base of the fixing portion.

14. The optical element driving mechanism as claimed in claim 13, wherein the coil carrier has at least one winding post, at least a portion of the coil is wound on the winding post, and wherein the portion of the coil wound on the winding post is connected to the conducting member disposed on the base by welding.

15. The optical element driving mechanism according to claim 14, wherein the coil carrier has two winding posts, and the winding posts are disposed on the same side of the coil carrier.

16. The optical element driving mechanism as claimed in claim 15, wherein a winding direction of the coil on the plurality of winding legs is around the first direction.

17. The optical element driving mechanism as claimed in claim 15, wherein a winding direction of the coil on the plurality of winding legs is around a second direction perpendicular to the first direction.

18. The optical element driving mechanism as claimed in claim 13, wherein the coil carrier has a winding structure, wherein in the first direction, a distance between a fifth surface of the winding structure facing the movable portion and the movable portion is different from a distance between a sixth surface of the coil facing the movable portion and the movable portion.

19. The optical element driving mechanism as claimed in claim 18, wherein the fifth surface of the winding structure is closer to the movable portion than the sixth surface of the coil.

20. The optical element driving mechanism as claimed in claim 18, wherein an engaging element is provided between the winding structure and the coil, the winding structure is fixed to the coil by the engaging element, and the engaging element, the winding structure and the coil at least partially overlap as viewed in a second direction perpendicular to the first direction.

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