Optical element driving mechanism

Abstract

The utility model provides an optical element driving mechanism. The optical element driving mechanism comprises a movable part, a fixed part and a driving assembly, the movable part is configured to be connected with an optical element. The movable part can move relative to the fixed part. The driving assembly is configured to drive the movable part to move relative to the fixed part. The fixing part comprises a base, and the base comprises a first side wall, a second side wall, a rear side wall and a bottom wall. The rear side wall is connected with the first side wall and the second side wall. The bottom wall is connected with the rear side wall, the first side wall and the second side wall.

Description

Technical Field

[0001] This utility model relates to an optical element driving mechanism, and more particularly to an optical element driving mechanism having a movable part, a fixed part, multiple sets of driving coils and magnetic elements. Background Technology

[0002] With the development of technology, many electronic devices today (such as laptops, smartphones, or digital cameras) have the function of taking pictures or recording videos. As the use of these electronic devices becomes more and more widespread, in addition to convenient and thin and light designs, there is also a need to develop more stable and better optical quality to provide users with more choices.

[0003] The aforementioned electronic devices with photographic or video recording functions typically include one or more lenses to achieve focusing, zooming, and / or optical image stabilization (OIS) functions. Therefore, the optical element driving mechanism usually includes multiple drive components that drive the optical elements to move. However, existing drive components often have at least one positioned in the direction in which light enters and / or leaves the optical element driving mechanism, resulting in an excessive distance between the overall center of mass and the center of rotation (e.g., the fulcrum), causing tilting or deflection problems. In view of this, how to accurately adjust the position of the optical elements and avoid tilting or deflection has become an important issue.

[0004] Furthermore, higher requirements are placed on the space utilization efficiency and structural strength of internal components. Coils, as a crucial component of driving or sensing elements, often need to be mounted on a base or fixed structure and connected to external circuits via wires. However, in existing related technologies, coil installation and lead configuration are generally quite cumbersome, often requiring multiple steps in the manufacturing process for positioning, wire arrangement, and fixing, leading to an increase in the number of process stations and consequently affecting production efficiency and yield.

[0005] In traditional designs, coil leads may be routed from different directions, increasing module size and adding to process variations and assembly complexity. Failure to properly protect the coil and leads can easily lead to coil detachment, lead breakage, or electrical abnormalities, further impacting product reliability and lifespan. Therefore, simplifying coil installation and wire configuration while simultaneously improving the overall structural strength and protection has become a crucial issue that urgently needs to be addressed in related technical fields. Utility Model Content

[0006] The terms used in the embodiments and similar terms (e.g., implementation, configuration, feature, example, and option) are intended to refer broadly to all objects of this invention and the following claims. Several statements containing these terms should be understood as not limiting the object described herein or limiting the meaning or scope of the following claims. The embodiments of the invention covered herein are defined by the following claims, not the contents of this invention. This description is a high-level overview of various features of the invention and introduces some concepts further described in the following description paragraphs. This description is not intended to identify key or essential features of the object of the claims, nor is it intended to be used independently to determine the scope of the object of the claims. The object of the invention should be understood through reference to appropriate portions of the complete specification of this invention, any or all of the drawings, and each claim.

[0007] According to certain features of this utility model, an optical element driving mechanism is provided, including a movable part, a fixed part, and a driving assembly. The movable part is configured to connect to an optical element. The movable part is movable relative to the fixed part. The driving assembly is configured to drive the movable part to move relative to the fixed part.

[0008] According to certain features of this utility model, the fixing part includes a base, which includes a first sidewall, a second sidewall, a rear sidewall, a bottom wall, and multiple circuit structures. The first sidewall has a first inner surface facing the optical element. A first coil of the driving assembly is disposed on the first inner surface. The second sidewall is parallel to the first sidewall. A second coil of the driving assembly is disposed on the second sidewall. The rear sidewall connects the first sidewall and the second sidewall. The bottom wall connects the rear sidewall, the first sidewall, and the second sidewall. The circuit structures are connected to the first coil.

[0009] According to certain features of this utility model, a first coil groove is provided on the first inner surface, the first coil is disposed in the first coil groove, and a filler material is disposed around the first coil and in the first coil groove. A second coil hole is provided on the second sidewall, the second coil is disposed in the second coil hole, and a filler material is disposed around the second coil and in the second coil hole. The filler material is an insulating adhesive.

[0010] According to certain features of this utility model, the first coil groove does not enclose the first coil, and when viewed in a direction parallel to the first sidewall and the rear sidewall, the first sidewall does not cover the first coil. The second coil hole does not enclose the second coil, and when viewed in a direction perpendicular to the second sidewall, the second sidewall does not cover the second coil; when viewed in a direction parallel to the second sidewall and the rear sidewall, the second sidewall covers the second coil.

[0011] According to certain features of this utility model, the fixing part further includes a flexible circuit board, wherein: the first coil has a first shaft and a plurality of first leads, the first shaft is parallel to a first sidewall, and the plurality of first leads extend on the same side of the first shaft and are connected to the flexible circuit board via a plurality of circuit structures. The second coil has a second shaft and a plurality of second leads, the second shaft is parallel to the first shaft, and the plurality of second leads extend on different sides of the second shaft and are directly connected to the flexible circuit board. The first coil and the second coil are flexible circuit board coils.

[0012] According to certain features of this utility model, the flexible circuit board includes a main body, a side plate, and multiple circuit board holes. The main body extends parallel to the bottom wall. The side plate is parallel to the second side wall, and the main body is fixedly connected to the side plate. The multiple circuit board holes are disposed in the main body, have different orientations, are configured to connect to the first coil via multiple circuit structures, and a filler material is disposed in the multiple circuit board holes.

[0013] According to certain features of this utility model, the fixing part further includes a housing and a metal plate. The metal plate is fixedly connected to the housing to accommodate the movable part and the base. The metal plate includes a metal plate opening that overlaps with a plurality of circuit board holes in the direction of the first axis.

[0014] According to certain features of this utility model, the movable part includes a protruding angle extending along the optical element. The bottom wall also includes a positioning part adjacent to the protruding angle, the positioning part being configured to be recessed on the side facing the protruding angle to accommodate the protruding angle, and configured to protrude toward the metal plate, and the shortest distance between the protruding angle and the positioning part is less than the shortest distance between the optical element and the positioning part.

[0015] According to certain features of this utility model, the optical element driving mechanism further includes a connecting assembly configured to movably connect the base and the movable part, wherein the connecting assembly includes multiple connecting elements. The movable part further includes a first movable groove, a second movable groove, and a third movable groove, wherein the extending direction of the first movable groove is different from that of the second movable groove, and the extending direction of the third movable groove is different from that of the second movable groove. The base further includes a first fixed groove and a second fixed groove, wherein the extending direction of the first fixed groove is parallel to that of the first movable groove, and the extending direction of the second fixed groove is parallel to that of the third movable groove. The first movable groove and the first fixed groove are movably connected by one connecting element of the multiple connecting elements. The second movable groove and the base are movably connected by another connecting element of the multiple connecting elements. The third movable groove and the second fixed groove are movably connected by yet another connecting element of the multiple connecting elements.

[0016] According to certain features of this utility model, the connecting assembly further includes a rotating element, wherein the driving assembly drives the movable part to rotate about the rotating element as the center. The movable part also includes a recessed portion disposed adjacent to the rotating element.

[0017] The foregoing description of this utility model is not intended to present every embodiment or feature of the present utility model. Rather, it provides only examples of some novel features and characteristics set forth herein. The above-described features and advantages, as well as other features and advantages, will become apparent to those skilled in the art from the following detailed description of representative embodiments and modes for carrying out the present utility model, taken in conjunction with the accompanying drawings and the appended claims. Additional features of the present utility model will be apparent to those skilled in the art from the following brief description of various embodiments with reference to the accompanying drawings and the provided symbols. Attached Figure Description

[0018] The present invention and its advantages, along with the accompanying drawings, will be better understood from the following description of exemplary embodiments in conjunction with the accompanying drawings. These drawings illustrate exemplary embodiments only and should therefore not be construed as limiting the various embodiments or claims.

[0019] Figure 1 A perspective view of an optical element driving mechanism and an optical element, according to certain aspects of the present invention.

[0020] Figure 2 To illustrate certain features of this utility model, a perspective view of the optical element driving mechanism and the optical element is provided, with the housing of the optical element driving mechanism removed for illustrative purposes.

[0021] Figure 3 An exploded view of the optical element drive mechanism and the optical element according to certain aspects of this utility model.

[0022] Figure 4 This is a perspective view of the base of the optical element driving mechanism and some of the driving components, according to certain aspects of the present invention.

[0023] Figure 5A This is a perspective view of the base of the optical element driving mechanism and the first coil of the driving assembly according to certain aspects of the present invention. For illustrative purposes, the base is shown as a dashed line.

[0024] Figure 5B This is a perspective view of the base of the optical element driving mechanism and the second coil of the driving assembly according to certain aspects of the present invention. For illustrative purposes, the base is shown as a dashed line.

[0025] Figure 6 This is a bottom view of the optical element driving mechanism according to certain aspects of the present invention.

[0026] Figure 7For illustrative purposes, a perspective view of the optical element drive mechanism and the optical element is provided according to certain aspects of the present invention, with the housing removed and the optical element shown as dashed lines.

[0027] Figure 8 According to certain aspects of this utility model, the optical element drive mechanism passes through the optical element. Figure 1 A cross-sectional view of line C1-C1.

[0028] Figure 9A This is a right-side view of the optical element drive mechanism according to certain aspects of the present invention.

[0029] Figure 9B A front view of the optical element drive mechanism according to certain aspects of this utility model.

[0030] Figure 9C This is a top view of an optical element driving mechanism according to certain aspects of the present invention.

[0031] The reference numerals in the attached figures are explained as follows:

[0032] 1: Optical element driving mechanism

[0033] 10: Optical components

[0034] 11: Light-receiving surface

[0035] 12: Light-emitting surface

[0036] 13: Reflective surface

[0037] 100: Activities Department

[0038] 101: Incline

[0039] 110: First active groove

[0040] 120: Second movable groove

[0041] 130: Third active groove

[0042] 140: Depression

[0043] 150: Protruding angle

[0044] 200: Fixed part

[0045] 210: Outer shell

[0046] 220: Base

[0047] 221: First fixing groove

[0048] 222: Second fixing groove

[0049] 223: Circuit Structure

[0050] 230: First sidewall

[0051] 231: First inner surface

[0052] 232: First coil groove

[0053] 233: Adhesive repair materials

[0054] 240: Second sidewall

[0055] 242: Second coil hole

[0056] 250: Rear sidewall

[0057] 260: Bottom wall

[0058] 262: Third coil hole

[0059] 264: Positioning Department

[0060] 270: Flexible circuit board

[0061] 272: Main Body

[0062] 274: Side panel

[0063] 276: Circuit board hole

[0064] 278: Connecting part

[0065] 280: Metal plate

[0066] 282: Opening in metal plate

[0067] 290: Reinforcing plate

[0068] 300: Driver Component

[0069] 310: First coil

[0070] 311: First Lead

[0071] 320: First magnetic element

[0072] 330: Second coil

[0073] 331: Second lead

[0074] 340: Second magnetic element

[0075] 350: Third coil

[0076] 360: Third magnetic element

[0077] 400: Connection component

[0078] 410: Rotating element

[0079] 420: Elastic element

[0080] 421: First connection position

[0081] 422: Middle section

[0082] 423: Second connection position

[0083] 430: Connecting element

[0084] Op: Principal optical axis

[0085] O1: First Axis

[0086] O2: Second axis

[0087] C1-C1: Line

[0088] X, Y, Z: Axes Detailed Implementation

[0089] Various embodiments are described with reference to the accompanying drawings, throughout which similar reference numerals are used to designate similar or equivalent elements. The drawings are not drawn to scale and are provided solely to illustrate the features and characteristics of the invention. It should be understood that many specific details, relationships, and methods are set forth to provide a comprehensive understanding. However, those skilled in the art will readily appreciate that various embodiments may be practiced without one or more specific details or in other ways. In some cases, well-known structures or operations are not shown in detail for illustrative purposes. The various embodiments are not limited to the order in which actions or events are shown, as some actions may occur in different orders and / or simultaneously with other actions or events. Furthermore, not all actions or events shown are necessary to implement certain features and characteristics of the invention.

[0090] For the purposes of this embodiment, unless explicitly stated otherwise, the singular includes the plural and vice versa. The term "including" means "including but not limited to". Furthermore, approximate words such as "about (bout), almost, substantially, approximately)" and similar words may be meant herein as, for example, "at," "near, nearly at," "within 3-5% of," "within acceptable manufacturing tolerances," or any logical combination thereof. Additionally, the terms "vertical" or "horizontal" are intended to further include "within 3-5%" in the vertical or horizontal direction, respectively. Furthermore, directional words such as "top," "bottom," "left," "right," "above," and "below" are intended to relate to the equivalent directions depicted in the reference illustrations; to be understood from the context of the reference object or element, such as from its usual location; or other such descriptions.

[0091] It is understood that although terms such as "first," "second," etc., may be used herein to describe various elements, layers, and / or portions, these elements, layers, and / or portions should not be limited by these terms, and these terms are only used to distinguish different elements, layers, and / or portions. Therefore, a first element, layer, and / or portion discussed below may be referred to as a second element, layer, and / or portion without departing from the teachings of some embodiments of this utility model. Furthermore, for the sake of brevity, the terms "first," "second," etc., may not be used in the specification to distinguish different elements. Without departing from the scope defined by the appended claims, the first and / or second elements recited in the claims may be interpreted as any element described in the specification.

[0092] It should be noted that the technical solutions provided in the different embodiments below can be substituted for, combined or mixed with each other to form another embodiment without violating the concept of this utility model.

[0093] This utility model relates to an optical element driving mechanism, which has a movable part, multiple sets of driving coils and magnetic elements, and can provide a variety of movements. It has a simplified structural configuration and optimized driving connection design to improve driving efficiency, structural stability and circuit integration, so as to achieve more precise or diverse optical control, thereby adjusting the photographic imaging of the optical module to adapt to different photographic needs.

[0094] Please refer to the following: Figures 1 to 3 . Figure 1 A perspective view of an optical element driving mechanism 1 and an optical element 10, according to certain aspects of the present invention. Figure 2The perspective view of the optical element drive mechanism 1 and the optical element 10 is shown in accordance with certain features of the present invention. For illustrative purposes, the housing 210 of the optical element drive mechanism 1 has been removed. Figure 3 An exploded view of the optical element drive mechanism 1 and the optical element 10 according to certain aspects of the present invention.

[0095] The optical element driving mechanism 1 drives the optical element 10. The optical element driving mechanism 1 includes a movable part 100, a fixed part 200, a driving assembly 300, and a connecting assembly 400. The movable part 100 is configured to connect to the optical element 10. The movable part 100 is movable relative to the fixed part 200. The driving assembly 300 is configured to drive the movable part 100 to move relative to the fixed part 200. The connecting assembly 400 is configured to movably connect the fixed part 200 and the movable part 100.

[0096] The optical element 10 has a principal optical axis Op and includes an incident surface 11, an exit surface 12, and a reflecting surface 13. The optical element 10 is fixedly connected to the movable part 100, thereby allowing it to move relative to the fixed part 200 together with the movable part 100 to achieve the desired optical effect. The optical element 10 can be, for example, a prism, which has the function of changing the direction of light travel. Figure 3 In the illustrated embodiment, the light-incident surface 11 is the surface through which light enters the optical element driving mechanism 1, and is perpendicular to the principal optical axis Op. The light-exiting surface 12 is the surface through which light leaves the optical element driving mechanism 1, and is perpendicular to the light-incident surface 11. The reflecting surface 13 of the optical element 10 is parallel to an inclined surface 101 of the movable part. Through the optical characteristics of the optical element 10, the light changes its direction of travel after reaching the reflecting surface 13 to obtain the desired optical effect. In some embodiments, the light can enter the optical element driving mechanism 1 along the optical axis O through the light-incident surface 11, change its direction of travel via the reflecting surface 13 (e.g., from the Z direction to the X direction), and then leave the optical element driving mechanism 1 through the light-exiting surface 12.

[0097] The movable part 100 can rotate relative to the fixed part 200 with the connecting assembly 400 as the fulcrum. The movable part 100 includes a first movable groove 110, a second movable groove 120, and a third movable groove 130 (in... Figures 9A to 9C (as shown in the middle), a recessed portion 140 (in Figure 8 (as shown in the image), a protrusion angle 150, which extends along the optical element 10.

[0098] The first movable groove 110, the second movable groove 120, and the third movable groove 130 are configured to be movably connected to the fixing part 200 via the connecting assembly 400, and will be in the following relative to Figures 9A to 9CDetailed description. The recess 140 is configured to house the connecting assembly 400 such that the overall center of gravity of the movable portion 100 is close to the optical element 10. This configuration will be described below relative to... Figures 9A to 9C Detailed description.

[0099] The fixing part 200 includes a housing 210, a base 220, a flexible circuit board 270, a metal plate 280, and a reinforcing plate 290. The housing 210 and the metal plate 280 are fixedly connected to accommodate the movable part 100 and the base 220.

[0100] Please refer to the following: Figures 4 to 5B . Figure 4 The present invention provides a perspective view of the base 220 of the optical element driving mechanism 1 and a portion of the driving assembly 400, according to certain aspects of the present invention. Figure 5A The following is a perspective view of the base 220 of the optical element driving mechanism 1 and the first coil 310 of the driving assembly 400 according to certain aspects of the present invention. For illustrative purposes, the base 220 is shown as a dashed line. Figure 5B The following is a perspective view of the base 220 of the optical element driving mechanism 1 and the second coil 330 of the driving assembly 400 according to certain aspects of the present invention. For illustrative purposes, the base 220 is shown as a dashed line.

[0101] The base 220 includes a first sidewall 230, a second sidewall 240, a rear sidewall 250, a bottom wall 260, multiple circuit structures 223, a first fixing groove 221, and a second fixing groove 222. The first sidewall 230, the second sidewall 240, the rear sidewall 250, and the bottom wall 260 constitute the base 220. The rear sidewall 250 connects the first sidewall 230 and the second sidewall 240. The bottom wall 260 connects the rear sidewall 250, the first sidewall 230, and the second sidewall 240.

[0102] Please refer to the following. Figure 4 as well as Figure 5A The first sidewall 230 has a first inner surface 231 facing the optical element 10, and a first coil 310 of the drive assembly 300 is disposed on the first inner surface 231. The first inner surface 231 has a first coil groove 232, such that the first coil 310 is disposed in the first coil groove 232. A filler material 233 can be disposed around the first coil 310 and in the first coil groove 232 to further fix the first coil 310. The filler material 233 is an insulating adhesive. The first coil groove 232 does not enclose the first coil 310. When viewed along a direction parallel to the first sidewall 230 and the rear sidewall 250, i.e., when viewed from top to bottom along the Z direction, the first sidewall 230 neither covers nor encloses the first coil 310.

[0103] The first coil 310 has a first axis O1 and a plurality of first leads 311. The first axis O1 is parallel to the first sidewall 240 and the main optical axis Op. The first leads 311 extend on the same side of the first axis O1. For example, in Figure 5A In the embodiment shown, facing the first coil 310, two first leads 311 extend to the left side of the first axis O1 and are electrically connected to the flexible circuit board 270 via respective circuit structures 223.

[0104] Please refer to the following: Figure 4 as well as Figure 5B The second sidewall 240 is parallel to the first sidewall 230. The second sidewall 240 has a second coil hole 242, and a second coil 330 of the drive assembly 300 is disposed in the second coil hole 242 of the second sidewall 240. A filler material 233 may be disposed around the second coil 330 and in the second coil hole 240. The second coil hole 242 does not enclose the second coil 330. When viewed in a direction perpendicular to the second sidewall 240, i.e., along the X direction, the second sidewall 240 does not cover the second coil 330. When viewed in a direction parallel to the second sidewall 240 and the rear sidewall 250, i.e., along the Z direction from top to bottom, the second sidewall 240 covers the second coil 330.

[0105] The second coil 330 has a second axis O2 and a plurality of second leads 331. The second axis O2 is parallel to the first axis O1. The second leads 331 extend on different sides of the second axis O2. For example, in Figure 5B In the embodiment shown, facing the second coil 330, two second leads 331 extend to the left and right sides of the second axis O3 respectively, and are directly connected to one side plate 274 of the flexible circuit board 270.

[0106] Please refer to the following: Figure 3 , Figure 4 , Figures 6 to 8 . Figure 6 A bottom view of the optical element driving mechanism 1 according to certain aspects of the present invention. Figure 7 The following is a perspective view of the optical element drive mechanism 1 and the optical element 10 according to certain aspects of the present invention. For illustrative purposes, the housing 210 has been removed, and the optical element 10 is shown as a dashed line. Figure 8 According to certain aspects of this utility model, the optical element drive mechanism 1 and the optical element 10 pass through... Figure 1 A cross-sectional view of line C1-C1.

[0107] The bottom wall 260 includes a third coil hole 262 and a positioning portion 264. A third coil 350 of the drive assembly 300 is disposed in the third coil hole 262 of the bottom wall 260. The positioning portion 264 is adjacent to the protrusion angle 150 of the movable portion 100. The positioning portion 264 is configured to be recessed on the side facing the protrusion angle 150 to receive the protrusion angle 150, and is configured to protrude toward the metal plate 280 (see [link]). Figure 7 as well as Figure 8 When viewed along the plane parallel to the metal plate 280 (i.e., the XY plane), the protruding angle 150 does not overlap with the positioning part 264 or the metal plate 280, and the positioning part 264 at least partially overlaps with the metal plate 280. Specifically, the protruding angle 150 extends towards the positioning part 264 along the direction parallel to the reflecting surface 13. The direction of extension of the protruding angle 150 is neither parallel nor perpendicular to the light-incident surface 11 and the light-exit surface 12, and the shortest distance between the protruding angle 150 and the positioning part 264 is less than the shortest distance between the optical element 10 and the positioning part 264. This structural design prevents the optical element 10 from colliding with the base 220 and thus avoids damage, thereby improving reliability.

[0108] The first fixing groove 221 of the base 220 extends parallel to the first movable groove 110, and the second fixing groove 222 extends parallel to the third movable groove 130. The connection between the first movable groove 110 and the first fixing groove 221, and between the third movable groove 130 and the second fixing groove 222, will be as follows relative to... Figures 9A to 9C Detailed description.

[0109] The flexible circuit board 270 includes a main body 272, a side panel 274, a plurality of circuit board holes 276, and a connecting portion 278. The main body 272 and the side panel 274 are integrally formed. The main body 272 extends parallel to the bottom wall 260. Please refer to... Figure 6 Multiple circuit board holes 276 are provided in the body 272. The circuit board holes 276 have different orientations, for example, in Figure 6 In this circuit board, one circuit board hole 276 faces the X direction, while the other circuit board hole 276 faces the Y direction. This is because the first coil 310 is electrically connected to the body 272 of the flexible circuit board 270 via the circuit structure 223, and is soldered to each other at the circuit board hole 276. A reinforcing material 233 may also be provided at the circuit board hole 276 to enhance insulation and secure the connection. The connecting portion 278 of the flexible circuit board 270 extends from the body 272 to the outside of the base 220 for connection to an external component, such as a control module.

[0110] The metal plate 280 includes a metal plate opening 282, which overlaps with the circuit board hole 276 in the direction of the first axis O1 (i.e., the Z direction) of the first coil 310. The edge of the metal plate 280 can be fastened to the housing 310 by means of welding, for example, to form a protective space. The components of the optical element driving mechanism 1 (moving part 100, base 220, connecting assembly 400, driving assembly 300) can all be accommodated in the above-mentioned protective space to effectively prevent interference from dust and other external environmental factors. The metal plate 280 can further strengthen its bottom structure to support its weight and prevent it from being deformed by external forces.

[0111] The reinforcing plate 290 is parallel to the second sidewall 240. The main body 272 of the flexible circuit board 270 is fixedly connected to the reinforcing plate 290. The reinforcing plate 290 is disposed between the flexible circuit board 270 and the outer shell 210 and attached to the second sidewall 240 to strengthen the structure of the flexible circuit board 270 and make it less susceptible to deformation by external forces.

[0112] Next, please continue to refer to Figure 3 The drive assembly 300 includes a first coil 310, a first magnetic element 320, a second coil 330, a second magnetic element 340, a third coil 350, and a third magnetic element 360. The first coil 310, the second coil 330, and the third coil 350 are disposed on the base 220, while the first magnetic element 320, the second magnetic element 340, and the third magnetic element 360 are disposed on the movable part 100. The first coil 310, the second coil 330, and the third coil 350 are flexible circuit board coils.

[0113] The first coil 310 and the first magnetic element 320 form a group and jointly drive the movable part 100 to move in one direction. The electromagnetic driving force generated between the first coil 310 and the first magnetic element 320 drives the movable part 100 to perform a first movement relative to the fixed part 200. The first movement of the movable part 100 is a rotational movement with its rotation axis parallel to the Z direction.

[0114] The second magnetic element 340 and the second coil 330 form a group, jointly driving the movable part 100 to move in another direction. By means of the electromagnetic driving force generated between the second coil 330 and the second magnetic element 340, the movable part 100 is driven to perform a second movement relative to the fixed part 200.

[0115] The third coil 350 and the third magnetic element 360 form a group, jointly driving the movable part 100 to move in another direction. The electromagnetic driving force generated between the third coil 350 and the third magnetic element 360 drives the movable part 100 to perform a third movement relative to the fixed part 200. This third movement of the movable part 100 is a rotational movement with its axis of rotation parallel to the Y direction.

[0116] The direction of the first motion is perpendicular to the direction of the third motion. The direction of the second motion is parallel to the direction of the first motion.

[0117] Next, please refer to the following: Figure 3 as well as Figure 8 The connecting assembly 400 includes a rotating element 410, an elastic element 420, and a plurality of connecting elements 430 (shown in...). Figures 9A to 9C The connecting assembly 400 connects the movable part 100 and the base 220. The driving assembly 300 drives the movable part 100 to rotate around the rotating element 410.

[0118] A rotating element 410 is disposed between the movable part 100 and the fixed part 220 to provide support when the movable part 100 moves relative to the fixed part 220. The support element 410 may be spherical to provide stable support when the movable part 100 moves relative to the fixed part 220 in various directions, and to make this movement smooth and stable.

[0119] exist Figure 8 In this embodiment, the recess 140 of the movable part 100 has a stepped structure and is disposed adjacent to the rotating element 410. The rotating element 410 or the elastic element 420 can both be disposed within the recess 140. The recess 140 can be designed with any structure depending on requirements or other process constraints. The rotating element 410 is disposed deep within the recess 140, i.e., closer to the light-emitting surface 12, while the elastic element 420 is disposed shallower within the recess 140. This configuration effectively brings the overall center of mass of the movable part 100 close to the optical element 10, and the rotation center of the movable part 100 relative to the fixed part 200 is close to the overall center of mass of the movable part 100. This ensures that the movable part 100, when not powered, will not be deflected or tilted due to gravity or the restoring force provided by the elastic element 420. Furthermore, the recess 140 allows for a reduction in the size of the optical element drive mechanism 1 in the X direction, simultaneously achieving improved mechanism stability and miniaturization.

[0120] The elastic element 420 connects the fixed portion 200 and the movable portion 100, and is designed to mate with the recessed portion 140. It is positioned perpendicular to the light-incident surface 11 of the optical element 10, i.e., parallel to the light-outceasing surface 12. The elastic element 420 can be an elastic element, spring, reed, etc., providing a restoring force for the movable portion 100 relative to the fixed portion 200. The elastic element 420 has a first connecting position 421, a second connecting position 423, and a middle portion 422. The first connecting position 421 is connected to the second connecting position 423 via the middle portion 422. The first connecting position 421 is closer to the center of the elastic element 420 than the second connecting position 423; that is, the distance between the first connecting position 421 and the center of the elastic element 420 is smaller than the distance between the second connecting position 423 and the center of the elastic element 420.

[0121] The elastic element 420 is connected to the fixed part 200 at the first connection position 421 and to the movable part 100 at the second connection position 423. The connection position between the elastic element 420 and the fixed part 200 is closer to the center of the elastic element 420 than the connection position between the elastic element 420 and the movable part 100. Since the center of mass of the movable part 100 is close to the optical element 10, by placing the elastic element 420 and the rotating element 410 closer to the optical element 10 in the X direction, the rotation center (i.e., the fulcrum, which is where the rotating element 410 contacts the fixed part 200) of the movable part 100 relative to the fixed part 200 is closer to the center of mass of the movable part 100. This prevents the movable part 100 from deflecting or tilting due to gravity or the restoring force provided by the elastic element 420 when no power is applied. Furthermore, it reduces the size of the optical element drive mechanism 1 in the X direction, thereby improving the stability and miniaturization of the mechanism.

[0122] Please refer to the following: Figures 9A to 9C . Figure 9A The right-side view of the optical element drive mechanism 1 according to certain aspects of the present invention. Figure 9B A front view of the optical element drive mechanism 1 according to certain aspects of the present invention. Figure 9C The optical element driving mechanism 1 is shown as a top view according to certain aspects of the present invention.

[0123] Multiple connecting elements 430 are each located in the first movable groove 110. The extension direction of the first movable groove 110 is different from that of the second movable groove 120. The extension direction of the third movable groove 130 is different from that of the second movable groove 120. The first movable groove 110 is movably connected to the first fixed groove 221 by connecting elements 430. The second movable groove 120 is movably connected to the base 220 by connecting elements 430. The third movable groove 130 is movably connected to the second fixed groove 222 by connecting elements 430.

[0124] This invention provides an optical element driving mechanism, including a fixed part, a driving assembly, a movable part for rotational movement, a connecting element, and a support element serving as a fulcrum for rotational movement. In the configuration provided by this invention, the center of mass of the driving assembly and the movable part is close to the location of the support element. Furthermore, by changing the configuration of the connecting element and the movable part, the movable part is less susceptible to deflection or tilting due to gravity or external impacts when not powered.

[0125] In summary, the optical element driving mechanism of this utility model, through the aforementioned integrated design, uses insulating adhesive as the bonding material to enhance the fixing strength of the first coil 310 and the second coil 330 and prevent coil detachment or short circuit. The second coil hole 242 does not completely enclose the second coil 330; it is partially exposed when viewed from different directions, facilitating assembly and testing. The positioning part enhances the overall structural stability and precision. The groove corresponds to the connecting element 430, forming a movable connection that allows the moving part to move freely in multiple directions. This not only effectively improves the accuracy and stability of optical element adjustment but also simplifies the assembly process, enhances structural reliability, and improves the miniaturization and process integration of the overall module. This allows for adjustment of the optical element's position to provide more stable optical quality. It enables complex optical adjustment actions with fewer parts within a limited space, making it suitable for applications such as camera modules and optical instruments.

[0126] Although embodiments of the present invention have been shown and described with respect to one or more implementations, equivalents and modifications will arise in those skilled in the art upon reading and understanding this specification and the accompanying drawings. Furthermore, while specific features of the present invention may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous for any given or particular application.

[0127] While various embodiments of the present invention have been described above, it should be understood that they are presented by way of example only and not as limiting. Various changes may be made to the embodiments disclosed herein without departing from the concept or scope of the present invention. Therefore, the breadth and scope of the present invention should not be limited by any of the foregoing embodiments. Rather, the scope of the present invention should be defined by the following claims and their equivalents.

[0128] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a” and “the” as used herein are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, the terms “including”, “having”, “has”, or variations thereof used in the embodiments and / or claims are intended to be included in a manner similar to the word “comprising”.

Claims

1. An optical element driving mechanism, characterized in that, include: A movable part, configured to connect to an optical element; A fixed part, and the movable part can move relative to the fixed part; as well as A drive component configured to drive the movable part to move relative to the fixed part.

2. The optical element driving mechanism as described in claim 1, characterized in that, The fixing part includes a base, the base including: A first sidewall has a first inner surface facing the optical element, and a first coil of the drive assembly is disposed on the first inner surface; A second sidewall is parallel to the first sidewall, and a second coil of the drive assembly is disposed on the second sidewall; A rear sidewall, connecting the first sidewall and the second sidewall; A bottom wall, connecting the rear side wall, the first side wall, and the second side wall; and Multiple circuit structures are connected to the first coil.

3. The optical element driving mechanism as described in claim 2, characterized in that: A first coil groove is provided on the first inner surface, the first coil is disposed in the first coil groove, and a filler material is provided around the first coil and in the first coil groove; The second sidewall has a second coil hole, the second coil is disposed in the second coil hole, and the filler material is disposed around the second coil and in the second coil hole; and The adhesive used for repair is an insulating adhesive.

4. The optical element driving mechanism as described in claim 3, characterized in that: The first coil groove does not enclose the first coil, and when viewed along a direction parallel to the first sidewall and the rear sidewall, the first sidewall does not cover the first coil; The second coil hole does not enclose the second coil. When viewed in a direction perpendicular to the second sidewall, the second sidewall does not cover the second coil. When viewed in a direction parallel to the second sidewall and the rear sidewall, the second sidewall covers the second coil.

5. The optical element driving mechanism as described in claim 2, characterized in that, The fixing part also includes a flexible circuit board, wherein: The first coil has a first shaft and a plurality of first leads. The first shaft is parallel to the first sidewall. The plurality of first leads extend on the same side of the first shaft and are connected to the flexible circuit board via the plurality of circuit structures. The second coil has a second shaft and a plurality of second leads. The second shaft is parallel to the first shaft, and the plurality of second leads extend on different sides of the second shaft and are directly connected to the flexible circuit board; and The first coil and the second coil are flexible circuit board coils.

6. The optical element driving mechanism as described in claim 5, characterized in that, The flexible circuit board includes: A main body extends parallel to the bottom wall; One side panel, parallel to the second side wall, is fixedly connected to the main body; and Multiple circuit board holes are provided in the main body, have different orientations, are configured to connect the first coil via the multiple circuit structures, and the multiple circuit board holes are provided with a filler material.

7. The optical element driving mechanism as described in claim 6, characterized in that, The fixing part also includes: A shell; and A metal plate is fixedly connected to the housing to accommodate the movable part and the base. The metal plate includes a metal plate opening that overlaps with the plurality of circuit board holes in the direction of the first axis.

8. The optical element driving mechanism as described in claim 7, characterized in that: The movable part includes a protruding angle extending along the optical element; and The bottom wall also includes a positioning portion adjacent to the protruding angle. The positioning portion is configured to be recessed on the side facing the protruding angle to accommodate the protruding angle, and is configured to protrude toward the metal plate. The shortest distance between the protruding angle and the positioning portion is less than the shortest distance between the optical element and the positioning portion.

9. The optical element driving mechanism as described in claim 2, characterized in that, It also includes a connecting assembly configured to movably connect the base and the movable part, wherein the connecting assembly includes a plurality of connecting elements: The movable part also includes a first movable groove, a second movable groove, and a third movable groove, wherein the extension direction of the first movable groove is different from that of the second movable groove, and the extension direction of the third movable groove is different from that of the second movable groove. The base also includes a first fixing groove and a second fixing groove, the extension direction of the first fixing groove being parallel to the first movable groove, and the extension direction of the second fixing groove being parallel to the third movable groove. The first movable groove and the first fixed groove are movably connected by a connecting element of the plurality of connecting elements; The second movable groove is movably connected to the base via another connecting element of the plurality of connecting elements; The third movable groove is movably connected to the second fixed groove by another connecting element of the plurality of connecting elements.

10. The optical element driving mechanism as described in claim 9, characterized in that, The connecting assembly also includes a rotating element, wherein: The drive assembly drives the movable part to rotate around the rotating element as the center; and The movable part also includes a recess located adjacent to the rotating element.

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