Optical element driving mechanism

Abstract

The utility model provides a kind of optical element driving mechanism, including a movable part, a fixed part and a driving assembly.The movable part is used to connect an optical element, and the movable part can move relative to the fixed part.The driving assembly is used to drive the movable part to move.

Description

Technical Field

[0001] This invention relates to an optical element driving mechanism. More specifically, this invention relates to an optical element driving mechanism for driving the movement of optical elements. Background Technology

[0002] With the development of technology, many electronic devices today (such as tablets or smartphones) are equipped with camera modules, enabling them to take photos or record videos. These electronic devices are becoming increasingly common and are evolving towards more convenient and slimmer designs to provide users with more choices.

[0003] When users operate electronic devices equipped with lens modules, shaking may occur, resulting in blurry images captured by the lens module. However, as people's demands for image quality increase, the zoom and image stabilization functions of lens modules are becoming increasingly important. Utility Model Content

[0004] This invention provides an optical element driving mechanism, including a movable part, a fixed part, and a driving assembly. The movable part is used to connect an optical element and is movable relative to the fixed part. The driving assembly is used to drive the movable part to move.

[0005] In some embodiments, the aforementioned optical element driving mechanism further includes a guiding assembly, through which the movable part moves relative to the fixed part. The guiding assembly includes a guiding element and a first corresponding unit. The guiding element includes a body having an elongated structure and a first fixing unit, and the first corresponding unit corresponds to the first fixing unit. The first fixing unit has a recessed structure, and the first corresponding unit has a protruding structure that enters the first fixing unit.

[0006] In some embodiments, the first fixing unit is formed on a body surface of the body.

[0007] In some embodiments, the guiding element includes a second fixing unit, and the guiding assembly includes a second corresponding unit corresponding to the second fixing unit, wherein the second corresponding unit has a recessed structure.

[0008] In some embodiments, the first fixing unit and the second fixing unit are respectively formed at both ends of the main body.

[0009] In some embodiments, the first corresponding unit and the second corresponding unit are made of different materials.

[0010] In some embodiments, the optical element driving mechanism further includes a frame on which a first driving element of the driving assembly is disposed, and the frame includes: a first connecting element; a first metal element having a metallic material and a plate-like structure; and a second metal element having a metallic material and a plate-like structure, wherein the first metal element and the second metal element are electrically independent of each other, wherein the first metal element is connected to the second metal element via the first connecting element, and wherein the first connecting element has a first stop unit for limiting the range of motion of the movable part.

[0011] In some embodiments, a first lead of the first driving element is electrically connected to the first metal element, the first metal element includes a first metal element surface, the second metal element includes a second metal element surface, the second metal element surface faces the first driving element, the first metal element surface and the second metal element surface are parallel to each other, the first metal element surface overlaps a first virtual plane, and the first virtual plane is parallel to the first metal element surface, and the first virtual plane and the second metal element surface do not overlap.

[0012] In some embodiments, the surfaces of the first metal element and the second metal element face the same direction.

[0013] In some embodiments, the frame further includes: a third metal element having a metallic material and a plate-like structure; and a second connecting element, wherein the second metal element is connected to the third metal element via the second connecting element, wherein the first metal element and the third metal element are electrically independent of each other, and wherein the second connecting element has a second stop unit for limiting the range of motion of the movable part.

[0014] In some embodiments, at least a portion of the first driving element is disposed between the first connecting element and the second connecting element.

[0015] In some embodiments, a second lead of the first driving element is electrically connected to the third metal element, the third metal element including a third metal element surface, the first metal element surface and the third metal element surface being parallel to each other, the third metal element surface overlapping a second virtual plane, and the second virtual plane being parallel to the third metal element surface, the second virtual plane and the second metal element surface not overlapping.

[0016] In some embodiments, the optical element has an optical axis along which the surfaces of the first metal element and the third metal element do not overlap when viewed along the optical axis; the surfaces of the first metal element and the third metal element do not overlap when viewed along a first direction; the surfaces of the first metal element and the third metal element do not overlap when viewed along a second direction; and the first direction, the second direction, and the optical axis are all perpendicular to each other.

[0017] In some embodiments, the fixing part includes a base, the base includes a base body, and the second corresponding unit is fixed to the base body, wherein at least a portion of the second corresponding unit is embedded in the base body and is not exposed from the base body.

[0018] In some embodiments, the base further includes: a first circuit element disposed on the base body; and a support portion corresponding to a solder portion of the first circuit element, wherein the support portion and the first circuit element are made of different materials, wherein the support portion and the base body are integrally formed, wherein the first circuit element is electrically connected to an external circuit via a circuit assembly, the circuit assembly having a first solder surface facing the solder portion, the solder portion having a second solder surface facing the first solder surface, at least a portion of the support portion being disposed between the first solder surface and the second solder surface, at least a portion of a solder element being disposed between the first solder surface and the second solder surface, the solder portion having an opening corresponding to the solder element.

[0019] In some embodiments, the surface of the first metal element faces the first circuit element, and the optical element driving mechanism further includes a reinforcing element. The reinforcing element is made of metal and is connected to the base. The second metal element is connected to the base via the reinforcing element, and the second corresponding unit and the reinforcing element are integrally formed.

[0020] In some embodiments, the movable part includes a magnetically conductive element made of metal, wherein the magnetically conductive element corresponds to a second driving element of the driving assembly, wherein the magnetically conductive element corresponds to a stabilizing element fixed to the fixed part, wherein a stabilizing force is generated between the stabilizing element and the magnetically conductive element to move the movable part toward the fixed part, wherein the optical element has an optical axis, and when viewed along a first direction perpendicular to the optical axis, the optical axis and the stabilizing element at least partially overlap.

[0021] In some embodiments, the reinforcing element has a reinforcing element surface facing the second metal element, and the stabilizing element is disposed on the reinforcing element surface.

[0022] In some embodiments, the optical element driving mechanism includes a sensing component, which includes a sensor and a sensing object. The sensor is connected to the fixed part, and the sensing object is disposed on the movable part. In a first direction, the position of the sensor corresponds to the position of the sensing object. The guiding component further includes another guiding element, which is substantially parallel to the first guiding element. In a second direction perpendicular to the first direction, the distance between the sensor and the guiding element is different from the distance between the sensor and the other guiding element.

[0023] In some embodiments, the driving assembly includes a second driving element disposed on the movable part, and the second driving element includes a first driving unit and a second driving unit, the first driving unit and the second driving unit being arranged along an optical axis of the optical element, wherein the size of the first driving unit is different from the size of the second driving unit, and wherein the magnetic pole direction of the first driving unit is opposite to the magnetic pole direction of the second driving unit. Attached Figure Description

[0024] Figure 1 This is a schematic diagram showing the optical element driving mechanism in an electronic device according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram illustrating the optical element driving mechanism in one embodiment of the present invention.

[0026] Figure 3 This is an exploded view showing the optical element driving mechanism in one embodiment of the present invention.

[0027] Figure 4 It means Figure 2 A cross-sectional view along the AA direction.

[0028] Figure 5 It means Figure 2 A cross-sectional view along the BB direction.

[0029] Figure 6A This is a schematic diagram showing the frame, the first circuit element, and the second circuit element in one embodiment of the present invention.

[0030] Figure 6B This is a schematic diagram showing the frame, first circuit element, second circuit element, and first driving element in one embodiment of the present invention.

[0031] Figure 6C This is a top view showing the frame, first circuit element, second circuit element, and first driving element in one embodiment of the present invention.

[0032] Figure 6DThis is a side view showing the frame, first circuit element, second circuit element, and first driving element in one embodiment of the present invention.

[0033] Figure 7 It means Figure 2 A cross-sectional view along the CC direction.

[0034] The reference numerals in the attached figures are explained as follows:

[0035] 10: Optical element driving mechanism

[0036] 20: Electronic devices

[0037] 21: Hole

[0038] 30: Optical components

[0039] 31: Optical axis

[0040] 40: Photosensitive element

[0041] 50: Reflective element

[0042] 100: Fixing part

[0043] 110: Outer shell

[0044] 120: Base

[0045] 121: Base Body

[0046] 122: Opening

[0047] 123: Support section

[0048] 130: First circuit element

[0049] 131: Welding section

[0050] 132: Second welding surface

[0051] 133: Opening

[0052] 140: Second circuit element

[0053] 200: Activities Department

[0054] 220: Guide groove

[0055] 210: Guide groove

[0056] 211: Side view

[0057] 212: Top surface

[0058] 221: Side view

[0059] 222: Top surface

[0060] 230: Magnetic conductive element

[0061] 240: The Activity Department

[0062] 250: Stop

[0063] 300: Guidance Component

[0064] 310: Guiding element

[0065] 311: Main Body

[0066] 311a: First end

[0067] 311b: Second end

[0068] 311s: Main body surface

[0069] 320: First fixed unit

[0070] 330: First corresponding unit

[0071] 340: Second fixed unit

[0072] 350: Second corresponding unit

[0073] 400: Driver Component

[0074] 410: First driving element

[0075] 411: First Lead

[0076] 412: Second lead

[0077] 420: Second driving element

[0078] 421: First drive unit

[0079] 422: Second drive unit

[0080] 430: Framework

[0081] 431: First metal element

[0082] 431s: Surface of the first metal component

[0083] 432: Second metal element

[0084] 432s: Surface of the second metal component

[0085] 433: Third metal component

[0086] 433s: Surface of the third metal component

[0087] 434: First connecting element

[0088] 434a: First stop unit

[0089] 435: Second connecting element

[0090] 435a: Second stop unit

[0091] 500: Reinforcing Components

[0092] 510: Base Plate

[0093] 511: Strengthen component surface

[0094] 520: Extension

[0095] 600: Circuit components

[0096] 610: First welding surface

[0097] 700: Sensing Components

[0098] 710: Sensor

[0099] 720: Sensor

[0100] 800: Stabilizing element

[0101] D1: First Direction

[0102] D2: Second Direction

[0103] P1: First Virtual Plane

[0104] P2: Second Virtual Plane

[0105] W: Welding components Detailed Implementation

[0106] The following describes the optical element driving mechanism of an embodiment of the present invention. However, it will be readily apparent that the embodiments of the present invention provide many suitable inventive concepts that can be implemented in a wide range of specific contexts. The specific embodiments disclosed are merely illustrative of the use of the present invention in a particular manner and are not intended to limit the scope of the present invention.

[0107] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant art and the context of this disclosure, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0108] The following disclosure of this specification describes specific examples of the various components and their arrangements to simplify the explanation. Of course, these specific examples are not intended to limit the present invention. For example, if the following disclosure describes a first feature formed on or above a second feature, it indicates that it includes embodiments where the first and second features are in direct contact, and also includes embodiments where additional features may be formed between the first and second features, so that the first and second features may not be in direct contact. Furthermore, to facilitate the description of the relationship between one feature and another in the drawings, spatial terms such as "below," "under," "below," "above," "above," and similar terms may be used. In addition to the orientations shown in the drawings, spatial terms cover different orientations of the device during use or operation. The device may also be positioned otherwise (rotated 90 degrees or in other orientations), and the spatial descriptions used herein can be interpreted accordingly.

[0109] Please see Figure 1 In one embodiment of this utility model, the optical element driving mechanism 10 can be installed in an electronic device 20 and can carry an optical element 30. During photography or videography, external light enters the electronic device 20 through a hole 21, and the external light entering the electronic device 20 can be reflected by a reflective element 50 and move along the optical axis 31 of the optical element 30, finally reaching the photosensitive element 40 in the electronic device 20 to form an image on the photosensitive element 40. The optical element driving mechanism 10 can drive the optical element 30 to move relative to the photosensitive element 40, thereby achieving the purpose of focusing, zooming, and / or optical image stabilization (OIS). For example, the aforementioned electronic device 20 can be a smartphone or digital camera with photography or videography functions, the aforementioned reflective element 50 can be a prism or a mirror, and the aforementioned optical element 30 can be a lens, but is not limited thereto.

[0110] Figure 2 This is a schematic diagram showing the aforementioned optical element driving mechanism 10, and Figure 3 This is an exploded view of the aforementioned optical element drive mechanism 10. (See diagram below.) Figure 2 and Figure 3As shown, the optical element driving mechanism 10 mainly includes a fixed part 100, a movable part 200, a guide assembly 300, a driving assembly 400, a reinforcing element 500, a circuit assembly 600, and a sensing assembly 700. The optical element 30 can be mounted on the movable part 200, and the movable part 200 can be movably connected to the fixed part 100 via the guide assembly 300. The driving assembly 400 can provide driving force to the movable part 200, causing the movable part 200 to move relative to the fixed part 100. The driving assembly 400 can be electrically connected to the circuit assembly 600, and can be electrically connected to external circuitry in the electronic device 20 via the circuit assembly 600.

[0111] The fixing part 100 may include a housing 110 and a base 120, which can be combined with each other. After the optical element driving mechanism 10 is assembled, the movable part 200, the guiding component 300, and the driving component 400 can be surrounded by the housing 110 and the base 120, thereby preventing the aforementioned components from colliding with other electronic components inside the electronic device 20 and causing damage when the electronic device 20 shakes. The reinforcing element 500 may be embedded in the base body 121 of the base 120 to enhance the structural strength of the fixing part 100. In this embodiment, the reinforcing element 500 may include metal, the base body 121 may include plastic, and the base body 121 may be formed by injection molding to cover the reinforcing element 500.

[0112] It should be noted that although the reinforcing element 500 is covered by the base body 121, the multiple extensions 520 extending from the base plate 510 of the reinforcing element 500 toward the outer casing 110 can still be exposed from the outer surface of the base body 121.

[0113] Figure 4 It means Figure 2 A cross-sectional view along the AA direction. (See example...) Figures 2 to 4As shown, the guide assembly 300 may include at least one guide element 310, and the body 311 of the guide element 310 may have an elongated structure extending along a direction parallel to the optical axis 31. A recessed structure may be formed on the body surface 311s of the body 311, and this recessed structure is adjacent to the first end 311a of the body 311. When the guide element 310 is mounted on the base 120, the adhesive may fill this recessed structure to adhere the body 311 and the base 120. Alternatively, in some embodiments, the base body 121 may cover the recessed structure during injection molding, such that a portion of the base body 121 enters the recessed structure. Therefore, the recessed structure on the main surface 311s of the main body 311 can serve as a first fixing unit 320 of the guide element 310, while the protruding structure (including the colloid and / or a part of the base body 121) that corresponds to the first fixing unit 320 and protrudes toward the main body 311 can serve as a first corresponding unit 330 of the guide element 310.

[0114] The second end 311b of the main body 311, opposite to the first end 311a, can be fixed to the reinforcing element 500 by welding. Specifically, in the direction of the optical axis 31, the base body 121 may have an opening 122 at a position corresponding to the main body 311, so that the reinforcing element 500 embedded therein is exposed through the opening 122, and the exposed reinforcing element 500 may have a corresponding recessed structure. The second end 311b of the guiding element 310 can pass through the opening 122 from the inside to contact the reinforcing element 500 and connect to the recessed structure on the reinforcing element 500. The laser can pass through the opening 122 from the outside to heat the reinforcing element 500 and the main body 311 of the guiding element 310, so that the two are welded together. Therefore, the part of the second end 311b of the main body 311 used for welding can serve as a second fixing unit 340 of the guiding element 310, while the part of the reinforcing element 500 containing the recessed structure can serve as a second corresponding unit 350 of the guiding element 310. It should be noted that, in this embodiment, the second corresponding unit 350 is still partially embedded in the base body 121 and is not exposed from the base body 121.

[0115] Since the first corresponding unit 330 includes a colloid and / or plastic, and the second corresponding unit 350 includes metal, the two will have different materials. By means of the aforementioned first fixing unit 320, first corresponding unit 330, second fixing unit 340, and second corresponding unit 350, the main body 311 of the guide element 310 can be securely fixed on the base 120.

[0116] In this embodiment, the second corresponding unit 350 and the reinforcing element 500 are integrally formed, but this is not a limitation. In some embodiments, the second corresponding unit 350 may be formed on another metal part embedded in the base body 121 and separate from the reinforcing element 500.

[0117] Please see Figure 4 and Figure 5 The movable part 200 can be slidably connected to the fixed part 100 via the guide assembly 300. In detail, a guide groove corresponding to the guide element 310 can be formed on the movable part 200. Therefore, when the drive assembly 400 drives the movable part 200 to move relative to the fixed part 100, the guide groove on the movable part 200 can move along the guide element 310, thereby ensuring the moving direction and moving stability of the movable part 200.

[0118] In this embodiment, the guiding assembly 300 includes two parallel guiding elements 310, and the movable part 200 includes guide grooves 210 and 220 corresponding to the two guiding elements 310 respectively. Specifically, the guide grooves 210 and 220 have different cross-sectional shapes. The guide groove 210 has two side surfaces 211 and a top surface 212 located between the two side surfaces 211, and an obtuse angle is formed between the side surfaces 211 and the top surface 212. Therefore, at least two contact points can be formed between the guide groove 210 and the corresponding guiding element 310. The guide groove 220 has two side surfaces 221 and a top surface 222 located between the two side surfaces 221, and the side surfaces 221 and the top surface 222 are perpendicular to each other. Therefore, only a single contact point can be formed between the guide groove 220 and the corresponding guiding element 310. This facilitates the installation of the optical element driving mechanism 10 and the guidance of the movable part 200.

[0119] The movable part 200 may further include a magnetically conductive element 230 embedded in the movable part body 240 of the movable part 200. The optical element driving mechanism 10 may further include a stabilizing element 800 fixed to the reinforcing element surface 511 of the reinforcing element 500 facing the movable part 200. A stabilizing force (magnetic attraction) can be generated between the magnetically conductive element 230 and the stabilizing element 800. Therefore, the movable part 200 can move closer to the base plate 510 by the aforementioned stabilizing force, thereby ensuring contact between the guide grooves 210, 220 and the guide element 310.

[0120] In this embodiment, when viewed along a first direction D1 perpendicular to the optical axis 31 (parallel to the Z-axis in the diagram), the optical axis 31 overlaps with the stabilizing element 800 to prevent the movable part 200 from becoming skewed. The aforementioned magnetically conductive element 230 may include, for example, a ferromagnetic metal, the aforementioned stabilizing element 800 may include, for example, a magnet, and the aforementioned movable part body 240 may include, for example, plastic.

[0121] like Figure 4 As shown, stoppers 250 may be provided on both sides of the movable part body 240 in a direction parallel to the optical axis 31. The stoppers 250 may be made of an elastic material (e.g., rubber) to reduce the impact between the movable part 200 and the fixed part 100 during movement and reduce the noise of the optical element drive mechanism 10.

[0122] Please see Figure 3 and Figure 5 The drive assembly 400 may include at least one first drive element 410, at least one second drive element 420, and at least one frame 430, wherein the first drive element 410 is fixed to the base 120 via the frame 430, and the second drive element 420 is fixed to the movable part 200.

[0123] For example, the first driving element 410 may be a coil, and the second driving element 420 may be a magnetic element. When current flows through the first driving element 410, a driving force can be generated between the first driving element 410 and the second driving element 420 to push the movable part 200 to move relative to the fixed part 100.

[0124] The magnetically conductive element 230 embedded in the movable part body 240 can extend to the position corresponding to the second driving element 420, thereby facilitating the installation of the second driving element 420 and improving the driving effect of the driving assembly 400. In this embodiment, the second driving element 420 may include a first driving unit 421 and a second driving unit 422, which can be arranged along the optical axis 31. The first driving unit 421 is closer to the first end 311a of the guiding element 310, and the second driving unit 422 is closer to the second end 311b of the guiding element 310. The size of the first driving unit 421 is smaller than the size of the second driving unit 422, and the magnetic poles of the first driving unit 421 are opposite to the magnetic poles of the second driving unit 422.

[0125] Please see Figures 6A to 6D The frame 430 may include a first metal element 431, a second metal element 432, a third metal element 433, a first connecting element 434, and a second connecting element 435. The first metal element 431 may be connected to the second metal element 432 via the first connecting element 434, and the third metal element 433 may be connected to the second metal element 432 via the second connecting element 435. The first connecting element 434 and the second connecting element 435 are made of non-conductive material (e.g., plastic). Therefore, since the first metal element 431 and the second metal element 432 are separated by the first connecting element 434, and the third metal element 433 and the second metal element 432 are separated by the second connecting element 435, and the first metal element 431 does not contact the third metal element 433, the first metal element 431, the second metal element 432, and the third metal element 433 can each be electrically independent.

[0126] The second metal element 432 may include a flat plate-like structure that can be welded to the extension 520 of the reinforcing element 500, thereby securing it to the base 120. The second metal element 432 may have a second metal element surface 432s facing the first driving element 410 when the first driving element 410 is disposed on the frame 430, and the first driving element 410 is located between the first connecting element 434 and the second connecting element 435.

[0127] The first metal element 431 has a plate-like structure and can be bent into a Z-shaped shape. One end of the first metal element 431 can be connected to a first connecting element 434, and the first lead 411 of the first driving element 410 can be connected to the first metal element 431 here, so that the first driving element 410 is electrically connected to the first metal element 431. The first metal element 431 may have a first metal element surface 431s adjacent to the other end of the first metal element 431 and parallel to a second metal element surface 432s. Therefore, this first metal element surface 431s can overlap and be parallel to a first virtual plane P1, and the first virtual plane P1 does not overlap the second metal element surface 432s. The first metal element surface 431s can be electrically connected to a first circuit element 130 embedded in the base body 121.

[0128] Similarly, the third metal element 433 may have a plate-like structure and can be bent into a Z-shaped shape. One end of the third metal element 433 may be connected to the second connecting element 435, and the second lead 412 of the first driving element 410 may be connected to the third metal element 433 here, so that the first driving element 410 is electrically connected to the third metal element 433. The third metal element 433 may have a third metal element surface 433s adjacent to the other end of the third metal element 433 and parallel to the second metal element surface 432s, and the third metal element surface 433s and the first metal element surface 431s face the same direction. Therefore, this third metal element surface 433s may overlap and be parallel to a second virtual plane P2, and the second virtual plane P2 does not overlap the second metal element surface 432s. The third metal element surface 433s may be electrically connected to a second circuit element 140 embedded in the base body 121. In this embodiment, the first virtual plane P1 and the second virtual plane P2 may be coplanar.

[0129] In this embodiment, the distance between the first metal element 431 and the base plate 510 of the reinforcing element 500 is different from the distance between the third metal element 433 and the base plate 510 of the reinforcing element 500. Therefore, when viewed along the optical axis 31, along the first direction D1 perpendicular to the optical axis 31, and along the second direction D2 perpendicular to both the optical axis 31 and the first direction D1, the surfaces 431s and 433s of the first metal element do not overlap.

[0130] The first connecting element 434 and the second connecting element 435 may each have a first stop unit 434a and a second stop unit 435a. When the first driving element 410 is disposed on the second metal element 432, the maximum distance between the first and second connecting elements 434 and 435 and the surface 432s of the second metal element will be greater than the maximum distance between the first driving element 410 and the surface 432s of the second metal element. In this way, the range of motion of the movable part 200 in the second direction D2 can be limited, which can prevent the movable part 200 or the second driving element 420 from colliding with the first driving element 410 when the electronic device 20 shakes.

[0131] Please see Figure 3 and Figure 7 The circuit assembly 600 can be connected to the base 120 and disposed below the base 120. The first circuit element 130 embedded in the base body 121 may include a solder part 131 for connecting the circuit assembly 600. The base 120 may further include a support part 123 corresponding to the aforementioned solder part 131.

[0132] The circuit assembly 600 may have a first soldering surface 610 facing the soldering portion 131 of the first circuit element 130. The soldering portion 131 may have a second soldering surface 132 facing the first soldering surface 610. When a user wants to connect the circuit assembly 600 to the first circuit element 130, a soldering element W (e.g., a solder ball) can be placed on the first soldering surface 610, and then the circuit assembly 600 can be attached to the base 120, so that the soldering element W contacts the second soldering surface 132. In particular, in this embodiment, the soldering portion 131 may have an opening 133, so when the circuit assembly 600 is attached to the base 120, the user can use this opening 133 to confirm whether the soldering element W and the soldering portion 131 have made contact.

[0133] After the circuit assembly 600 is connected to the first circuit element 130, the welding element W will be disposed between the first welding surface 610 and the second welding surface 132, and the support portion 123 may be located between the first welding surface 610 and the second welding surface 132 to enhance the structural strength. In this embodiment, the support portion 123 and the base body 121 may be integrally formed.

[0134] The connection between the second circuit element 140 and the circuit assembly 600 can have a substantially similar structure, so it will not be described in detail here.

[0135] Please continue reading. Figure 3 and Figure 7 The sensing component 700 may include a sensor 710 and a sensing element 720. The sensor 710 is disposed on the circuit component 600, and the sensing element 720 is disposed on the movable part body 240. In the first direction D1, the positions of the sensor 710 and the sensing element 720 correspond to each other.

[0136] The sensor 710 may be, for example, a Hall effect sensor, a magnetoresistive effect sensor (MR sensor), a giant magnetoresistive effect sensor (GMR sensor), a tunneling magnetoresistive effect sensor (TMR sensor), or a fluxgate sensor, while the sensing object 720 may be, for example, a magnet. Therefore, the sensor 710 can obtain the position of the movable part 200 relative to the fixed part 100 by detecting the movement of the sensing object 720.

[0137] In this embodiment, the sensor 710 and the sensing object 720 are positioned away from the optical axis 31, so the distances between the two guiding elements and the sensor 710 will be different.

[0138] In summary, this utility model provides an optical element driving mechanism, including a movable part, a fixed part, and a driving assembly. The movable part is used to connect an optical element, and the movable part is movable relative to the fixed part. The driving assembly is used to drive the movable part to move.

[0139] The aforementioned optical element driving mechanism further includes a guiding assembly, through which the movable part moves relative to the fixed part. The guiding assembly includes a guiding element and a first corresponding unit. The guiding element includes a main body with an elongated structure and a first fixing unit, and the first corresponding unit corresponds to the first fixing unit. The first fixing unit has a recessed structure, and the first corresponding unit has a protruding structure that enters the first fixing unit.

[0140] While the embodiments and advantages of this utility model have been disclosed above, it should be understood that anyone skilled in the art can make modifications, substitutions, and refinements without departing from the spirit and scope of this utility model. Furthermore, the scope of protection of this utility model is not limited to the processes, machines, manufacturing, material composition, apparatus, methods, and steps described in the specific embodiments of the specification. Anyone skilled in the art can understand from the disclosure of this utility model any existing or future developed processes, machines, manufacturing, material composition, apparatus, methods, and steps, as long as they can perform substantially the same function or obtain substantially the same results in the embodiments described herein, and can be used according to this utility model. Therefore, the scope of protection of this utility model includes the aforementioned processes, machines, manufacturing, material composition, apparatus, methods, and steps. In addition, each claim constitutes an individual embodiment, and the scope of protection of this utility model also includes combinations of the various claims and embodiments.

[0141] Although the present invention has been disclosed above with reference to several preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims. Furthermore, each claim constitutes an independent embodiment, and all combinations of claims and embodiments fall within the scope of the present invention.

Claims

1. An optical element driving mechanism, characterized in that, include: A movable part for connecting an optical element; A fixed part, wherein the movable part is movable relative to the fixed part; as well as A drive component is used to drive the movement of the moving part.

2. The optical element drive mechanism according to claim 1, wherein The optical element driving mechanism further includes a guide assembly, through which the movable part moves relative to the fixed part, and the guide assembly includes: A guiding element, comprising: One main body, with a long, narrow structure; and A first fixed unit; and The first corresponding unit corresponds to the first fixed unit. The first fixing unit has a recessed structure, and the first corresponding unit has a protruding structure that enters the first fixing unit.

3. The optical element drive mechanism according to claim 2, wherein The first fixing unit is formed on a main body surface of the main body.

4. The optical element drive mechanism according to claim 2, wherein The guiding element includes a second fixing unit, and the guiding assembly includes a second corresponding unit corresponding to the second fixing unit, wherein the second corresponding unit has a recessed structure.

5. The optical element drive mechanism according to claim 4, wherein The first fixing unit and the second fixing unit are respectively formed at both ends of the main body.

6. The optical element drive mechanism according to claim 4, wherein The first corresponding unit and the second corresponding unit have different materials.

7. The optical element drive mechanism according to claim 4, wherein The optical element driving mechanism further includes a frame, on which a first driving element of the driving assembly is disposed, and the frame includes: A first connecting element; A first metal element, having a metallic material and a plate-like structure; and A second metal component, which is made of metal and has a plate-like structure. The first metal element and the second metal element are electrically independent of each other. The first metal element is connected to the second metal element via the first connecting element. The first connecting element has a first stop unit to limit the range of motion of the moving part.

8. The optical element driving mechanism as described in claim 7, characterized in that, A first lead of the first driving element is electrically connected to the first metal element. The first metal element includes a first metal element surface. The second metal element includes a second metal element surface, which faces the first driving element. The surfaces of the first metal element and the second metal element are parallel to each other. The surface of the first metal element overlaps with a first virtual plane, and the first virtual plane is parallel to the surface of the first metal element. The first virtual plane and the surface of the second metal element do not overlap.

9. The optical element driving mechanism as described in claim 8, characterized in that, The surfaces of the first metal element and the second metal element face the same direction.

10. The optical element drive mechanism according to claim 8, wherein The framework further includes: A third metal element, which is made of metal and has a plate-like structure; and A second connecting element, wherein the second metal element is connected to the third metal element via the second connecting element. The first metal element and the third metal element are electrically independent of each other. The second connecting element has a second stop unit to limit the range of motion of the moving part.

11. The optical element drive mechanism according to claim 10, wherein At least a portion of the first drive element is disposed between the first connecting element and the second connecting element.

12. The optical element driving mechanism as described in claim 10, characterized in that, A second lead of the first driving element is electrically connected to the third metal element. The third metal component includes a third metal component surface. The surfaces of the first metal element and the third metal element are parallel to each other. The surface of the third metal component overlaps with a second virtual plane, and the second virtual plane is parallel to the surface of the third metal component. The second virtual plane and the surface of the second metal element do not overlap.

13. The optical element driving mechanism as described in claim 12, characterized in that, This optical element has an optical axis. When viewed along the optical axis, the surfaces of the first metal element and the third metal element do not overlap. When viewed along a first direction, the surfaces of the first metal element and the third metal element do not overlap. When viewed along a second direction, the surfaces of the first and third metal components do not overlap. The first direction, the second direction, and the optical axis are all perpendicular to each other.

14. The optical element driving mechanism as described in claim 7, characterized in that, The fixing part includes a base, the base includes a base body, and the second corresponding unit is fixed to the base body, wherein at least a portion of the second corresponding unit is embedded in the base body and is not exposed from the base body.

15. The optical element drive mechanism according to claim 14, wherein The base also includes: A first circuit element is disposed on the base body; and A support portion corresponds to a solder portion of the first circuit element, and the support portion and the first circuit element are made of different materials. The support and the base body are integrally formed. The first circuit element is electrically connected to an external circuit via a circuit assembly. The circuit assembly has a first soldering surface facing the solder joint. The welded part has a second welding surface facing the first welding surface. At least a portion of the support is disposed between the first welding surface and the second welding surface. At least a portion of a welding element is disposed between the first welding surface and the second welding surface. The welded part has an opening corresponding to the welded element.

16. The optical element driving mechanism as described in claim 15, characterized in that, The surface of the first metal element faces the first circuit element. The optical element drive mechanism further includes a reinforcing element, which is made of metal and connected to the base. The second metal component is connected to the base via the reinforcing component. The second corresponding unit and the reinforcing element are integrally formed.

17. The optical element drive mechanism of claim 16, wherein, The active part includes a magnetically conductive element made of metal. The magnetic conductive element corresponds to a second driving element of the driving assembly. The magnetic conductive element corresponds to a stabilizing element, which is fixed to the fixing part. A stabilizing force is generated between the stabilizing element and the magnetically conductive element, causing the movable part to move towards the fixed part. The optical element has an optical axis, and when viewed along a first direction perpendicular to the optical axis, the optical axis and the stabilizing element at least partially overlap.

18. The optical element drive mechanism of claim 17, wherein, The reinforcing element has a reinforcing element surface facing the second metal element, and the stabilizing element is disposed on the reinforcing element surface.

19. The optical element drive mechanism of claim 2, wherein The optical element driving mechanism includes a sensing assembly, which includes a sensor and a sensing object. The sensor is connected to the fixed part, and the sensing object is disposed on the movable part. In a first direction, the position of the sensor corresponds to the position of the sensed object. The guiding assembly further includes another guiding element that is substantially parallel to the first guiding element, and the distance between the sensor and the guiding element is different from the distance between the sensor and the other guiding element in a second direction perpendicular to the first direction.

20. The optical element driving mechanism as described in claim 2, characterized in that, The driving assembly includes a second driving element disposed on the movable part, and the second driving element includes a first driving unit and a second driving unit, the first driving unit and the second driving unit being arranged along an optical axis of the optical element. The size of the first drive unit is different from the size of the second drive unit. The magnetic pole direction of the first driving unit is opposite to that of the magnetic pole direction of the second driving unit.

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