Optical element drive mechanism

Abstract

This disclosure provides an optical element driving mechanism. The optical element driving mechanism includes a fixed part, a movable part, a driving assembly, and a circuit assembly. The movable part is used to connect to an optical element. The movable part is movable relative to the fixed part. The driving assembly is used to drive the movable part to move relative to the fixed part. The circuit assembly is used to electrically connect to an external circuit. The fixed part includes a corresponding structure for the circuit assembly.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an optical element driving mechanism. BACKGROUND

[0002] With the development of technology, nowadays many electronic devices (e.g. smart phones or tablets) have the function of taking pictures or videos. Through the optical element and the optical element driving mechanism arranged on the electronic device, the user can operate the electronic device to take pictures. When the user uses the electronic device, it may produce shaking, vibration, so that the image taken is blurred. Therefore, it is necessary to improve the quality of the image taken. SUMMARY

[0003] The purpose of the present disclosure is to provide an optical element driving mechanism to solve at least one of the above problems.

[0004] The present disclosure provides an optical element driving mechanism. The optical element driving mechanism includes a fixed part, a movable part, a driving assembly, and a circuit assembly. The movable part is used to connect an optical element. The movable part can move relative to the fixed part. The driving assembly is used to drive the movable part to move relative to the fixed part. The circuit assembly is used to electrically connect an external circuit. The fixed part includes a corresponding structure corresponding to the circuit assembly.

[0005] In some embodiments, the optical element driving mechanism further includes a resilient element. The movable part is movably connected to the fixed part through the resilient element. The resilient element has a plate structure perpendicular to a main axis. The resilient element is electrically connected to the driving assembly and the circuit assembly. The driving assembly includes a coil, and the resilient element is electrically connected to the coil of the driving assembly.

[0006] In some embodiments, the fixed part further includes an outer frame, a base, and a frame. The outer frame has a top wall and a side wall. The top wall has a plate structure and is perpendicular to a main axis. The base forms an accommodation space with the outer frame to accommodate the movable part. The frame is fixedly connected to the base. The frame is located in the accommodation space. The outer frame has a metal material. The base has a plastic material. The frame has a plastic material. On the main axis, the shortest distance between the top wall and the frame is less than the shortest distance between the side wall and the part of the corresponding side wall of the base.

[0007] In some embodiments, the optical element driving mechanism further comprises a first adhesive element. The frame is fixedly connected to the outer frame via the first adhesive element. The first adhesive element directly contacts the outer frame, the frame, and the base. The outer frame comprises a first outer frame surface facing the frame and perpendicular to the main axis. The frame comprises a first frame surface facing the top wall and perpendicular to the main axis, and a second frame surface facing the base and perpendicular to the main axis. The base comprises a first base surface facing the frame and perpendicular to the main axis. The first outer frame surface, the first frame surface, the second frame surface, and the first base surface at least partially overlap when viewed along the main axis. A space is formed between the first outer frame surface and the first frame surface, and a groove is formed between the second frame surface and the first base surface, and the first adhesive element is disposed in the space and the groove.

[0008] In some embodiments, the corresponding structure further comprises a first opening for accommodating a first circuit element of the circuit assembly. The first opening is fixedly disposed in the base. The first opening comprises a first surface, a second surface, a third surface, a fourth surface, and a fixing structure. The first surface faces the first circuit element. The second surface faces the first circuit element, and the second surface faces in an opposite direction to the first surface. The third surface faces the first circuit element. The fourth surface faces the first circuit element. The fourth surface faces in an opposite direction to the third surface and is not parallel to the first surface, and the shortest distance between the fourth surface and the third surface is greater than the shortest distance between the first surface and the second surface. The fixing structure is used to fix the first circuit element and is fixedly disposed in the first surface. The fixing structure protrudes from the first surface and directly contacts the first circuit element. The shortest distance between the fixing structure and the second surface is less than the shortest distance between the first surface and the second surface.

[0009] In some embodiments, the shortest distance between the fixing structure and the second surface is less than the shortest distance between the fourth surface and the third surface. When viewed along a first axis perpendicular to the main axis, the first circuit element is exposed in the first opening. In the first axis, the maximum size of the first surface is greater than the maximum size of the second surface. The fixing structure has an elongated structure extending along the first axis. When viewed along the main axis, the fixing structure protrudes from the second surface.

[0010] In some embodiments, the optical element driving mechanism further comprises a second adhesive element. The outer frame is fixedly connected to the base via the second adhesive element. The base comprises an adhesive element accommodating portion. The outer frame further comprises a protruding portion, an adhesive element accommodating portion, and an exposing portion. The protruding portion extends along the main axis by the side wall. The adhesive element accommodating portion corresponds to the second adhesive element. The second adhesive element is at least partially accommodated in the adhesive element accommodating portion of the outer frame and the adhesive element accommodating portion of the base. The exposing portion has an opening structure, and the first opening of the base and the first circuit element are exposed in the exposing portion. When viewed along the main axis, the exposing portion is located at a first corner of the optical element driving mechanism having a polygonal structure.

[0011] In some embodiments, the base further comprises a light shielding structure for shielding stray light from entering the accommodation space. The light shielding structure is located at the first corner when viewed along the main axis, and the light shielding structure is exposed to the exposed portion. The light shielding structure protrudes from a second base surface of the base, the second base surface being parallel to the main axis. The light shielding structure has a third base surface, the third base surface being perpendicular to the main axis. The sidewall of the outer frame at least partially overlaps the third base surface when viewed along the main axis. The sidewall does not contact the third base surface.

[0012] In some embodiments, the protrusion further comprises a third outer frame surface, the third outer frame surface being perpendicular to the main axis. The third outer frame surface at least partially overlaps the base when viewed along the first axis. The base further comprises a positioning portion for positioning an external module. The optical element driving mechanism is fixedly connected to the external module. The positioning portion has a plurality of protrusions extending along the main axis.

[0013] In some embodiments, the optical element driving mechanism further comprises a third adhesive element. The first circuit element is fixedly connected to the base via the third adhesive element. The third adhesive element is at least partially located in the first opening and exposed to the exposed portion, and the third adhesive element directly contacts the first surface, the third surface, the fourth surface, the fixing structure, the first circuit element.

[0014] The fixing structure of the present disclosure can be tightly fitted or interference fitted with the circuit assembly, so as to effectively position and fix the circuit assembly, and reduce the possibility of loosening of the circuit assembly. Therefore, the stability can be improved. In addition, in order to fit the circuit assembly, the base can comprise a corresponding light shielding structure to shield stray light from entering the inside of the optical element driving mechanism. Therefore, the quality of imaging can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to make the features or advantages of the present disclosure more apparent, some embodiments are described in detail below with reference to the accompanying drawings. It should be noted that various features are not necessarily drawn to scale. In fact, the size of various features can be arbitrarily enlarged or reduced, and can be schematically drawn.

[0016] Figure 1 is a schematic view of an electronic device, an optical element, and an optical element driving mechanism.

[0017] Figure 2 is a schematic view of an optical element and an optical element driving mechanism.

[0018] Figure 3 is a top view of an optical element driving mechanism.

[0019] Figure 4 is an exploded view of an optical element driving mechanism.

[0020] Figure 5is a schematic view of the outer frame, frame, base.

[0021] Figure 6 is a top view of the outer frame, frame, base.

[0022] Figure 7 is a side view of the outer frame, frame, base.

[0023] Figure 8 is a schematic view of the outer frame, frame, base upside down.

[0024] Figure 9 is a perspective view of the optical element driving mechanism omitting the outer frame.

[0025] Figure 10 is a perspective view of the carrier seat.

[0026] Figure 11 and Figure 12 are perspective views of the base from different angles.

[0027] Figure 13 and Figure 14 are partial enlarged views of the base from different angles.

[0028] Figure 15 and Figure 16 are perspective views of the base and the circuit assembly, wherein the angles are the same as Figure 11 and Figure 12 respectively.

[0029] Figure 17 and Figure 18 are partial enlarged views of the base and the circuit assembly, wherein the angles are the same as Figure 13 and Figure 14 respectively.

[0030] The reference signs are as follows:

[0031] 1: electronic device

[0032] 10: optical element

[0033] 100: optical element driving mechanism

[0034] 110: outer frame

[0035] 110S1: first outer frame surface

[0036] 110S2: second outer frame surface

[0037] 110S3: third outer frame surface

[0038] 111: top wall

[0039] 112: side wall

[0040] 113: protrusion

[0041] 114: adhesive element housing

[0042] 115: first exposed portion

[0043] 116: second exposed portion

[0044] 120: frame

[0045] 120S1: first frame surface

[0046] 120S2: second frame surface

[0047] 121: columnar structure

[0048] 130: base

[0049] 130S1: first base surface

[0050] 130S2: second base surface

[0051] 130S3: third base surface

[0052] 131: strut

[0053] 132: light blocking structure

[0054] 133: positioning portion

[0055] 134: adhesive element housing

[0056] 135: first opening

[0057] 136: second opening

[0058] 140: bearing seat

[0059] 141: upper connecting portion

[0060] 150: upper elastic element

[0061] 160: lower elastic element

[0062] 170: coil

[0063] 180: magnetic element

[0064] 190: first circuit element

[0065] 191: upper bent portion

[0066] 192: flat portion

[0067] 193: lower bent portion

[0068] 200: second circuit element

[0069] 210: first adhesive element

[0070] 211: space

[0071] 212: groove

[0072] 220: second adhesive element

[0073] 230: third adhesive element

[0074] 1001, 1002, 1003, 1004: corner

[0075] 1351: first surface

[0076] 1352: second surface

[0077] 1353: third surface

[0078] 1354: fourth surface

[0079] 1355: fixing structure

[0080] A1: first axis

[0081] A2: second axis

[0082] C: circuit component

[0083] D: driving component

[0084] E: elastic component

[0085] I: fixed part

[0086] M: movable part

[0087] MA: main axis

[0088] O: optical axis DETAILED DESCRIPTION

[0089] In the description, numerous different embodiments or examples are provided, and relative terms are used to describe particular examples of components and arrangements of components to implement different features of the present disclosure. For example, if a first feature is described as being formed "on" and / or "over" a second feature, this can include embodiments where the first feature is in direct contact with the second feature, as well as embodiments where additional features are formed between the first feature and the second feature such that the first feature is not in direct contact with the second feature. Relative terms are used to describe the relationship between elements or features in the drawings. In addition to the orientation shown in the drawings, these relative terms are intended to encompass different orientations of the device in use or operation, depending on the specific context. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the relative terms used herein are to be construed accordingly. In addition, the same or similar symbols or letters can be used in different examples of the present disclosure.

[0090] In the description, the terms "comprising" and / or "having" and the like are to be construed as open-ended terms, thus meaning "including, but not limited to..." Thus, when the terms "comprising" and / or "having" and the like are used in the description, the specification is to be interpreted as specifying the presence of the stated features, regions, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, regions, steps, operations, elements, and / or components.

[0091] Please refer to Figure 1 and Figure 2 . Figure 1 is a schematic view of an electronic device 1, an optical element 10, and an optical element driving mechanism 100. Figure 2 is a schematic view of the optical element 10 and the optical element driving mechanism 100. The electronic device 1 can be a tablet computer, a smart phone, or the like. The optical element 10 can be a lens, for example. The optical element 10 can be made of plastic or glass. The optical element 10 can be circular or other shapes. The optical element 10 and the optical element driving mechanism 100 can be mounted to the electronic device 1 for a user to take images. The optical element driving mechanism 100 can carry the optical element 10 and drive the optical element 10 to move, so as to adjust the position of the optical element 10 to take clear images. The optical element 10 and the optical element driving mechanism 100 can be disposed at a top region of the electronic device 1 to increase the range of the display region of the electronic device 1. The optical element driving mechanism 100 can further fixedly connect an external module, for example, a photosensitive element module (for example, a module including a charge-coupled detector (CCD)), so that light entering the optical element driving mechanism 100 is imaged on the external module.

[0092] The optical element 10 has an optical axis O. The optical axis O is an imaginary axis passing through the center of the optical element 10. The optical element driving mechanism 100 has a main axis MA. The main axis MA is an imaginary axis passing through the center of the optical element driving mechanism 100. When the optical element 10 is aligned with the optical element driving mechanism 100, the optical axis O of the optical element 10 and the main axis MA of the optical element driving mechanism 100 substantially coincide. Therefore, the relevant features of the optical element driving mechanism 100 can be described with the aid of the optical axis O of the optical element 10 or the main axis MA of the optical element driving mechanism 100 in the drawings and the specification. It should be understood that, since the optical element 10 is movably mounted in the optical element driving mechanism 100, the optical axis O of the optical element 10 and the main axis MA of the optical element driving mechanism 100 do not completely coincide due to the movement, shaking, rotation, tilting, etc. of the optical element driving mechanism 100.

[0093] When viewed along the main axis MA, the optical element driving mechanism 100 has a polygonal structure. For the convenience of description, the four corners of the optical element driving mechanism 100 are defined as a first corner 1001, a second corner 1002, a third corner 1003, and a fourth corner 1004. The first corner 1001 and the third corner 1003 are located on one diagonal, and the second corner 1002 and the fourth corner 1004 are located on the other diagonal. In addition, the side on which the first corner 1001 and the fourth corner 1004 are located is defined as parallel to a first axis A1, and the side on which the first corner 1001 and the second corner 1002 are located is defined as parallel to a second axis A2. The first axis A1 and the second axis A2 are both perpendicular to the main axis MA.

[0094] Next, in addition to Figure 2 , please refer to Figure 3 and Figure 4 to understand the optical element driving mechanism 100. Figure 3 is a top view of the optical element driving mechanism 100. Figure 4 is an exploded view of the optical element driving mechanism 100. The optical element driving mechanism 1 includes a fixed part I, a movable part M, an elastic assembly E, a driving assembly D, and a circuit assembly C. The movable part M is used to connect the optical element 10. The movable part M can move relative to the fixed part I. The driving assembly D is used to drive the movable part M to move relative to the fixed part I. The circuit assembly C is used to electrically connect an external circuit (not shown) to input and transmit current.

[0095] In this embodiment, the fixed part I includes an outer frame 110, a frame 120, and a base 130. The movable part M includes a bearing seat 140. The elastic component E includes an upper elastic element 150 and a lower elastic element 160. The driving component D includes a coil 170 and a plurality of magnetic elements 180. The circuit component C includes a first circuit element 190 and a second circuit element 200. It should be understood that elements can be added or deleted according to user needs. For the sake of clarity, some elements may

[0096] Next, in addition to Figure 2 to Figure 4 , please refer to Figure 5 to Figure 8 to understand the fixed part I. Figure 5 is a schematic view of the outer frame 110, the frame 120, and the base 130. Figure 6 is a top view of the outer frame 110, the frame 120, and the base 130. Figure 7 is a side view of the outer frame 110, the frame 120, and the base 130. Figure 8 is a schematic view of the outer frame 110, the frame 120, and the base 130 upside down. In Figure 5 to Figure 8 , the outer frame 110 is shown in dashed lines. In some embodiments, the outer frame 110 has a metal material. In some embodiments, the frame 120 has a plastic material. In some embodiments, the base 130 has a plastic material.

[0097] The outer frame 110, the frame 120, and the base 130 are arranged along the main axis MA. The outer frame 110 is disposed above the frame 120 and the base 130, and the frame 120 is disposed between the outer frame 110 and the base 130. The frame 120 is fixedly connected to the base 130. The outer frame 110 and the base 130 can form a containing space to contain the frame 120, the movable part M, the elastic component E, the driving component D, etc., to increase the overall structural strength of the optical element driving mechanism 100.

[0098] The outer frame 110 has a top wall 111, a plurality of side walls 112, a protruding part 113, an adhesive element containing part 114, a first exposed part 115, and a second exposed part 116. The frame 120 has four columnar structures 121. The base 130 has four support columns 131, two light shielding structures 132, a positioning part 133 (only shown in Figure 8 ), an adhesive element containing part 134, a first opening 135, and a second opening 136, wherein the first opening 135 and the second opening 136 can be regarded as a corresponding structure of the circuit component C in the fixed part I.

[0099] The top wall 111 has a plate-like structure and is perpendicular to the main axis MA. The side wall 112 extends from the edge of the top wall 111 in a direction parallel to the main axis MA. On the main axis MA, the shortest distance between the top wall 111 of the outer frame 110 and the frame 120 is smaller than the shortest distance between the side wall 112 of the outer frame 110 and the portion of the corresponding side wall 112 of the base 130. In other words, on the main axis MA, the outer frame 110 connects the base 130 via the frame 120, and thus can improve the structural strength of the optical element driving mechanism 100. The protruding portion 113 extends from the side wall 112 along the main axis MA. The adhesive element accommodating portion 114, the first exposed portion 115, and the second exposed portion 116 can have an open structure.

[0100] The columnar structures 121 of the frame 120 and the struts 131 of the base 130 are respectively arranged at the first corner 1001, the second corner 1002, the third corner 1003, and the fourth corner 1004, and extend toward each other in a direction parallel to the main axis MA. The columnar structures 121 of the frame 120 contact and connect the struts 131 of the base 130.

[0101] In some embodiments, the optical element driving mechanism 100 further includes a first adhesive element 210. The outer frame 110, the frame 120, and the base 130 can be connected by the first adhesive element 210 (only schematically shown in Figure 7 . That is, the outer frame 110 is fixedly connected to the frame 120 via the first adhesive element 210, and the first adhesive element 210 directly contacts the outer frame 110, the frame 120, and the base 130. The outer frame 110 includes a first outer frame surface 110S1 facing the frame 120 and perpendicular to the main axis MA. The frame 120 includes a first frame surface 120S1 facing the top wall 111 of the outer frame 110 and perpendicular to the main axis MA, and a second frame surface 120S2 facing the base 130 and perpendicular to the main axis MA. The base 130 has a first base surface 130S1 facing the frame 120 and perpendicular to the main axis MA.

[0102] When viewed along the main axis MA, the first outer frame surface 110S1, the first frame surface 120S1, the second frame surface 120S2, and the first base surface 130S1 at least partially overlap. A space 211 can be formed between the first outer frame surface 110S1 and the first frame surface 120S1, and the first adhesive element 210 is arranged in the space 211. In addition, a groove 212 can be formed between the second frame surface 120S2 and the first base surface 130S1, and the first adhesive element 210 is arranged in the groove 212. By the space 211 between the outer frame 110 and the frame 120, and the groove 212 between the frame 120 and the base 130, the contact area of the first adhesive element 210 with the outer frame 110, the frame 120, and the base 130 can be increased, so as to strengthen the connection strength between the outer frame 110, the frame 120, and the base 130.

[0103] In some embodiments, the optical element driving mechanism 100 further includes a second adhesive element 220. The second adhesive element 220 (only when...) Figure 7 (Schematally shown) Connecting the outer frame 110 and the base 130. That is, the outer frame 110 is fixedly connected to the base 130 via a second adhesive element 220, and the second adhesive element 220 directly contacts both the outer frame 110 and the base 130. Figure 7 As shown, the second adhesive element 220 is disposed in the adhesive element receiving portion 114 of the outer frame 110 and the adhesive element receiving portion 134 of the base 130.

[0104] The light-shielding structure 132 of the base 130 protrudes from a second base surface 130S2 of the base 130. The second base surface 130S2 is parallel to the main axis MA. When viewed along the main axis MA, the two light-shielding structures 132 (see reference) Figure 5 The light-shielding structures 1001 and 1002 are located at the first corner 1001 and the second corner 1002, respectively. The light-shielding structure 132 has a third base surface 130S3 facing the outer frame 110 and perpendicular to the main axis MA. When viewed along the main axis MA, the sidewall 112 of the outer frame 110 at least partially overlaps with the third base surface 130S3, but the sidewall 112 of the outer frame 110 does not contact the third base surface 130S3 (see reference). Figure 5 as well as Figure 6 The light-shielding structure 132 is exposed in the first exposed portion 115 and the second exposed portion 116 of the outer frame 110. The light-shielding structure 132 can be used to block stray light from entering the receiving space formed by the outer frame 110 and the base 130. Therefore, the image quality can be improved.

[0105] It should be noted that, such as Figure 8 As shown, the protrusion 113 of the outer frame 110 also includes a third outer frame surface 110S3 perpendicular to the main axis MA. When viewed along the first axis A1, the third outer frame surface 110S3 at least partially overlaps with the base 130. Figure 8 As shown in the diagram, when viewed along the first axis A1, the positioning portion 133 of the base 130 protrudes more than the third outer frame surface 110S3. In other words, the positioning portion 133 of the base 130 is the lowest part of the optical element drive mechanism 100. The positioning portion 133 has multiple protrusions extending along the main axis MA. In this embodiment, there are three protrusions, and the surfaces of the three protrusions can form a horizontal plane. When the optical element drive mechanism 100 is fixedly connected to an external module, the positioning portion 133 of the base 130 can be used to position the external module to reduce the possibility of external module misalignment.

[0106] The first exposed portion 115 of the outer frame 110 and the first opening 135 of the base 130 are located at the first corner 1001 when viewed along the main axis MA, while the second exposed portion 116 of the outer frame 110 and the second opening 136 of the base 130 are located at the second corner 1002. The first opening 135 of the base 130 is exposed to the first exposed portion 115 of the outer frame 110. The second opening 136 of the base 130 is exposed to the second exposed portion 116 of the outer frame 110. The first opening 135 and the second opening 136 are fixedly provided on the base 130. The first opening 135 and the second opening 136 are respectively configured to accommodate the first circuit element 190 and the second circuit element 200.

[0107] Next, in addition to Figure 2 to Figure 4 , reference is made to Figure 9 and Figure 10 to understand the movable portion M, the elastic assembly E, the driving assembly D, and the circuit assembly C. Figure 9 is a perspective view of the optical element driving mechanism 100 with the outer frame 110 omitted. Figure 10 is a perspective view of the carrier 140.

[0108] The carrier 140 is disposed between the frame 120 and the base 130, and the carrier 140 is spaced apart from the frame 120 and the base 130. That is, the carrier 140 does not directly contact the frame 120 and the base 130. The carrier 140 can be hollow to carry the optical element 10. In some embodiments, the carrier 140 comprises a plastic material. The carrier 140 comprises a plurality of upper connecting portions 141. The upper connecting portions 141 can be protrusions. Portions of the upper elastic element 150 are fixedly provided on a top surface of the carrier 140, and the upper connecting portions 141 can strengthen the connection between the upper elastic element 150 and the top surface of the carrier 140. The movable portion M is movably connected to the fixed portion I via the upper elastic element 150 and the lower elastic element 160. Specifically, the upper elastic element 150, the carrier 140, and the lower elastic element 160 are sequentially arranged along the main axis MA, and the carrier 140 is movably clamped by the upper elastic element 150 and the lower elastic element 160 to reduce the possibility of collision between the carrier 140 and the frame 120 and the base 130. The upper elastic element 150 and the lower elastic element 160 are made of elastic or ductile materials, such as metal. In the art, the upper elastic element 150 and the lower elastic element 160 can be referred to as "elastic sheets", "spring sheets", "leaf springs", etc.

[0109] The upper elastic member 150 and the lower elastic member 160 have a plate-like structure perpendicular to the main axis MA. The upper elastic member 150 and the lower elastic member 160 are electrically connected to the driving assembly D and the circuit assembly C. In some embodiments, the upper elastic member 150 and the lower elastic member 160 are electrically connected to the coil 170 of the driving assembly D to transmit the current from the circuit assembly C to the coil 170.

[0110] The coil 170 has a polygonal shape and surrounds the carrier 140. The magnetic member 180 surrounds the coil 170. Specifically, when the coil 170 of the driving assembly D is energized, a magnetic force is generated between the coil 170 and the magnetic member 180 to drive the carrier 140 to move. For example, the carrier 140 can move along a direction parallel to the optical axis O, so that the optical element 10 in the carrier 140 focuses on the object being photographed to achieve auto focus (AF) to improve the quality of the photographed image.

[0111] When viewed along the main axis MA, the first circuit member 190 is located at the first corner 1001, and the second circuit member 200 is located at the second corner 1002. In other words, the first circuit member 190 and the second circuit member 200 are located on the same side of the optical element driving mechanism 100. The first circuit member 190 is exposed to the first exposure portion 115 of the outer frame 110 and the first opening 135 of the base 130. The second circuit member 200 is exposed to the second exposure portion 116 of the outer frame 110 and the second opening 136 of the base 130. The first circuit member 190 includes an upper bent portion 191, a flat portion 192, and a lower bent portion 193 (see Figure 17 and Figure 18 ). The flat portion 192 is located between the upper bent portion 191 and the lower bent portion 193. The first circuit member 190 and the second circuit member 200 can be electrically connected to an external circuit, so that current can be passed into the optical element driving mechanism 100.

[0112] Next, please refer to Figure 11 to Figure 18 to understand how the first opening 135 and the second opening 136 of the base 130 accommodate the first circuit member 190 and the second circuit member 200. Figure 11 and Figure 12 are perspective views of the base 130 from different angles. Figure 13 and Figure 14 are partially enlarged views of the base 130 from different angles. Figure 15 and Figure 16 are perspective views of the base 130 and the circuit assembly C, which have the same angles as Figure 11 and Figure 12 , respectively. Figure 17 and Figure 18is a partial enlarged view of the base 130 and the circuit assembly C, in which the viewing angle is the same as Figure 13 and Figure 14 For simplicity, only the first opening 135 and the first circuit element 190 are taken as examples, but the second opening 136 and the second circuit element 200 can also have similar or identical configurations.

[0113] The first opening 135 includes a first surface 1351, a second surface 1352, a third surface 1353, and a fourth surface 1354. The first surface 1351, the second surface 1352, the third surface 1353, and the fourth surface 1354 all face the first circuit element 190. The first surface 1351 is opposite and substantially parallel to the second surface 1352, and the first surface 1351 and the second surface 1352 face in opposite directions. The third surface 1353 is opposite and substantially parallel to the fourth surface 1354, and the third surface 1353 and the fourth surface 1354 face in opposite directions. The third surface 1353 and the fourth surface 1354 are not parallel to the first surface 1351 and the second surface 1352. Specifically, when viewed along the first axis Al, the first surface 1351 and the second surface 1352 extend along the second axis A2, while the third surface 1352 and the fourth surface 1354 extend along the major axis MA. On the first axis Al, a maximum dimension of the first surface 1351 is greater than a maximum dimension of the second surface 1352. That is, the long side of the first surface 1351 is longer than the long side of the second surface 1352. A shortest distance between the third surface 1353 and the fourth surface 1354 is greater than a shortest distance between the first surface 1351 and the second surface 1352. That is, when the first opening 135 accommodates the first circuit element 190, the flat portion 192 of the first circuit element 190 can be subjected to a greater contact force than the upper curved portion 191 of the first circuit element 190.

[0114] In some embodiments, the first opening 135 further includes a fixing structure 1355. The fixing structure 1355 is used to fix the first circuit element 190. The fixing structure 1355 protrudes from the first surface 1351 and has a long strip-shaped structure extending along the first axis Al. A shortest distance between the fixing structure 1355 and the second surface 1352 is less than the shortest distance between the first surface 1351 and the second surface 1352. In addition, because the shortest distance between the third surface 1353 and the fourth surface 1354 is greater than the shortest distance between the first surface 1351 and the second surface 1352, the shortest distance between the third surface 1353 and the fourth surface 1354 is also greater than the shortest distance between the fixing structure 1355 and the second surface 1352. Furthermore, when viewed along the major axis MA, the boundary of the fixing structure 1355 exceeds the boundary of the second surface 1352.

[0115] The fixing structure 1355 directly contacts the flat portion 192 of the first circuit element 190. In some embodiments, the fixing structure 1355 has a close fit with the first circuit element 190. In some embodiments, the fixing structure 1355 has an interference fit with the first circuit element 190. Thus, the fixing structure 1355 can effectively position and fix the first circuit element 190, reducing the possibility of the first circuit element 190 loosening. Thus, the stability can be improved.

[0116] In Figure 11 to Figure 18 In the illustrated embodiment, the fixing structure 1355 is located at the first surface 1351. However, it should be understood that the fixing structure 1355 can also be located at the second surface 1352 or the third surface 1353 or the fourth surface 1354. In addition, the number of the fixing structure 1355 can be one or more. In other words, one or more fixing structures 1355 can be fixedly disposed at at least one of the first surface 1351, the second surface 1352, the third surface 1353, or the fourth surface 1354.

[0117] In some embodiments, the optical element driving mechanism 100 further comprises a third adhesive element 230. The first circuit element 190 can be connected to the base 130 through the third adhesive element 230 (only schematically shown in Figure 17 In some embodiments, the optical element driving mechanism 100 further comprises a third adhesive element 230. The first circuit element 190 can be connected to the base 130 through the third adhesive element 230 (only schematically shown in

[0118] It should be noted that the first adhesive element 210, the second adhesive element 220, and the third adhesive element 230 can be made of the same or different materials. The first adhesive element 210, the second adhesive element 220, and the third adhesive element 230 can be made of an adhesive material, a conductive material, or an insulating material, such as a resin material, optical glue, etc. The first adhesive element 210, the second adhesive element 220, and the third adhesive element 230 can adhere to different elements to strengthen the connection between the elements. In addition, the first adhesive element 210, the second adhesive element 220, and the third adhesive element 230 generally have good elasticity and covering force, and the application of the first adhesive element 210, the second adhesive element 220, and the third adhesive element 230 to the elements can protect the elements and reduce the probability of impurities such as dust and moisture entering the elements. If the first adhesive element 210, the second adhesive element 220, and the third adhesive element 230 are insulating materials, an insulating effect can be achieved. The connection between the outer frame 110, the frame 120, and the base 130 can be strengthened by the structure of the outer frame 110, the frame 120, and the base 130 itself and / or the application of the first adhesive element 210, the second adhesive element 220, and the third adhesive element 230. Therefore, the overall structural strength of the optical element driving mechanism can be improved.

[0119] In summary, the fixing structure of the present disclosure can be tightly fitted or interference fitted with the circuit assembly, so as to effectively position and fix the circuit assembly and reduce the possibility of loosening of the circuit assembly. Therefore, the stability can be improved. In addition, in order to fit the circuit assembly, the base can include a corresponding light shielding structure to shield stray light from entering the inside of the optical element driving mechanism. Therefore, the quality of imaging can be improved. In addition, the connection between the outer frame, the frame, and the base can be strengthened by the structure of the outer frame, the frame, and the base itself and / or the application of the first adhesive element, the second adhesive element, and the third adhesive element. Therefore, the overall structural strength of the optical element driving mechanism can be improved.

[0120] The foregoing outlines features of several embodiments so that those skilled in the art can better understand the aspects of the present disclosure. Those skilled in the art should appreciate that they can readily use the present disclosure as a basis for designing or modifying other processes and structures for carrying out the same purposes and / or achieving the same advantages that the embodiments introduced herein are designed to achieve. Those skilled in the art should appreciate that such equivalent constructions do not depart from the spirit and scope of the present disclosure, and that various changes, substitutions, and alterations can be made therein without departing from the spirit and scope of the present disclosure. In addition, features of the various embodiments can be arbitrarily mixed and used in combination, as long as they do not conflict with each other or the spirit of the present disclosure.

Claims

1. An optical element driving mechanism, comprising: a fixed part; a movable part, configured to connect an optical element, and movable relative to the fixed part; a driving assembly, configured to drive the movable part to move relative to the fixed part; and a circuit assembly, configured to electrically connect an external circuit; wherein the fixed part comprises: a frame, having a top wall and a side wall, the top wall having a plate structure and being perpendicular to an axis; a base, forming a receiving space with the frame, to receive the movable part; a frame body, fixedly connected to the base, wherein the frame body is located in the receiving space; and a corresponding structure corresponding to the circuit assembly, and comprising a first opening, configured to receive a first circuit element of the circuit assembly, wherein the first opening is fixedly arranged on the base, and comprises: a first surface, facing the first circuit element; a second surface, facing the first circuit element, and the second surface faces in an opposite direction to the first surface; a third surface, facing the first circuit element; a fourth surface, facing the first circuit element, wherein the fourth surface faces in an opposite direction to the third surface and is not parallel to the first surface, and a shortest distance between the fourth surface and the third surface is greater than a shortest distance between the first surface and the second surface; and a fixing structure, configured to fix the first circuit element and fixedly arranged on the first surface, wherein the fixing structure protrudes from the first surface and directly contacts the first circuit element; wherein a shortest distance between the fixing structure and the second surface is less than the shortest distance between the first surface and the second surface.

2. The optical element driving mechanism of claim 1, further comprising a resilient element, the movable part is movably connected to the fixed part via the resilient element, wherein the resilient element has a plate structure perpendicular to an axis, wherein the resilient element is electrically connected to the driving assembly and the circuit assembly, wherein the driving assembly comprises a coil, and the resilient element is electrically connected to the coil of the driving assembly.

3. The optical element driving mechanism of claim 1, wherein the frame has a metal material, the base has a plastic material, and the frame body has a plastic material; wherein along the axis, a shortest distance between the top wall and the frame body is less than a shortest distance between the side wall and a portion of the base corresponding to the side wall.

4. The optical element driving mechanism of claim 3, further comprising a first adhesive element, wherein the frame body is fixedly connected to the frame via the first adhesive element, the first adhesive element directly contacts the frame, the frame body and the base; wherein the frame comprises a first frame surface facing the top wall and being perpendicular to the axis, and a second frame surface facing the base and being perpendicular to the axis; wherein the base comprises a first base surface facing the frame body and being perpendicular to the axis; wherein along the axis, the first frame surface, the second frame surface and the first base surface at least partially overlap. ​ ​ Wherein a space is formed between the first outer frame surface and the first frame surface, and a groove is formed between the second frame surface and the first base surface, and the first adhesive element is disposed in the space and the groove.

5. The optical element driving mechanism of claim 1, wherein the shortest distance between the fixing structure and the second surface is less than the shortest distance between the fourth surface and the third surface, wherein the first circuit element is exposed to the first opening when viewed along a first axis perpendicular to the main axis, wherein the maximum dimension of the first surface is greater than the maximum dimension of the second surface on the first axis, wherein the fixing structure has an elongated shape extending along the first axis, and wherein a boundary of the fixing structure exceeds a boundary of the second surface when viewed along the main axis.

6. The optical element driving mechanism of claim 1, further comprising a second adhesive element, wherein the outer frame fixedly connects the base via the second adhesive element, wherein the base comprises an adhesive element receiving portion, and wherein the outer frame further comprises: a protruding portion extending from the sidewall along the main axis; an adhesive element receiving portion corresponding to the second adhesive element, wherein the second adhesive element is at least partially received in the adhesive element receiving portion of the outer frame and the adhesive element receiving portion of the base; and an exposing portion having an opening structure, wherein the first opening of the base and the first circuit element are exposed to the exposing portion.

7. The optical element driving mechanism of claim 6, wherein the base further comprises a light shielding structure for shielding a stray light from entering the receiving space, wherein the light shielding structure is located at the first corner of the optical element driving mechanism having a polygonal shape and is exposed to the exposing portion when viewed along the main axis, wherein the light shielding structure protrudes from a second base surface of the base, the second base surface being parallel to the main axis, wherein the light shielding structure has a third base surface, the third base surface being perpendicular to the main axis, wherein the sidewall of the outer frame at least partially overlaps the third base surface when viewed along the main axis, and wherein the sidewall does not contact the third base surface.

8. The optical element driving mechanism of claim 6, wherein the protruding portion further comprises a third outer frame surface, the third outer frame surface being perpendicular to the main axis, wherein the third outer frame surface at least partially overlaps the base when viewed along a first axis perpendicular to the main axis, wherein the base further comprises a positioning portion for positioning an external module, wherein the optical element driving mechanism fixedly connects the external module, and wherein the positioning portion has a plurality of protrusions extending along the main axis.

9. The optical element driving mechanism of claim 6, further comprising a third adhesive element, wherein the first circuit element is fixedly connected to the base via the third adhesive element, wherein the third adhesive element is at least partially located in the first opening and exposed to the exposing portion, and wherein the third adhesive element directly contacts the first surface, the third surface, the fourth surface, the fixing structure, and the first circuit element. ​ ​ ​ ​ ​

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