Optical element driving mechanism

Abstract

An optical element driving mechanism comprises a fixed part, a movable part and a first driving assembly. The movable part is connected with an optical element with an optical axis. The movable part can move relative to the fixed part. The first driving assembly is configured to drive the movable part to move relative to the fixed part.

Description

Technical Field

[0001] The utility model relates to an optical element driving mechanism, and particularly to an optical element driving mechanism with a driving component. Background Art

[0002] With the development of technology, many current electronic devices (such as smart phones or digital cameras) have the functions of taking pictures or videos. The use of these electronic devices is becoming more and more common, and they are developing towards the design directions of convenience, thinness and lightness to provide users with more choices.

[0003] The aforementioned electronic devices with the functions of taking pictures or videos usually are provided with an optical element driving mechanism, and light can pass through optical elements (such as shutter blades, filters, lenses, etc.) to form an image on a photosensitive element. The current trend of mobile devices is miniaturization and light weight, so how to effectively miniaturize and lighten the optical element driving mechanism has become an important issue. Summary of the Utility Model

[0004] The purpose of the present disclosure is to propose an optical element driving mechanism to solve at least one of the above problems.

[0005] The present disclosure provides an optical element driving mechanism. The optical element driving mechanism includes a fixed part, a movable part, and a first driving component. The movable part is connected to an optical element having an optical axis. The movable part can move relative to the fixed part. The first driving component is configured to drive the movable part to move relative to the fixed part.

[0006] According to some embodiments of the present disclosure, the optical element driving mechanism further includes a guiding element. The movable part includes a first movable part and a second movable part. The second movable part can move relative to the first movable part. The guiding element guides the movement of the second movable part relative to the first movable part.

[0007] According to some embodiments of the present disclosure, the fixed part includes a base. When observed along the optical axis, at least a part of the base overlaps with the guiding element. During the assembly of the optical element driving mechanism, the guiding element is assembled to the first movable part from a direction opposite to the direction in which light enters the optical element driving mechanism.

[0008] According to some embodiments of the present disclosure, the first movable part includes a first stopping part, a second stopping part, and a groove. When the second movable part moves along the optical axis to a first limit position, it contacts the first stopping part, and when the second movable part moves along the optical axis to a second limit position, it contacts the second stopping part. The groove can accommodate the guiding element to fix the guiding element on the first movable part. The groove is located on the first stopping part of the first movable part.

[0009] According to some embodiments of the present disclosure, the optical element driving mechanism further includes a second driving assembly, a first circuit assembly, and a second circuit assembly. The second driving assembly is configured to drive the second movable part to move relative to the fixed part and the first movable part. The first driving assembly is electrically connected to the first circuit assembly. The first circuit assembly includes a first circuit element and a second circuit element. The first circuit element and the second circuit element are perpendicular to each other. The second driving assembly is electrically connected to an external circuit via the second circuit assembly. The first driving assembly includes a first magnetic conductive element, a second magnetic conductive element, and a third magnetic conductive element. The second driving assembly includes two magnetic conductive elements. The first magnetic conductive element and the second magnetic conductive element are disposed on the first movable part in parallel with each other. The third magnetic conductive element is disposed on the first movable part and perpendicular to the first magnetic conductive element and the second magnetic conductive element. The magnetic conductive elements are parallel to the third magnetic conductive element. One of the magnetic conductive elements is disposed on the first movable part, and the other magnetic conductive element is disposed on the second movable part.

[0010] According to some embodiments of the present disclosure, the second circuit assembly includes a circuit element, a connection element, an elastic element, and a support element. The second driving assembly is electrically connected to an external circuit via the circuit element, the connection element, the elastic element, and the support element in sequence. The connection element is embedded in the first movable part. The support element supports the movement of the movable part relative to the fixed part. The support element is substantially parallel to the optical axis, but the end of the support element closer to the elastic element is inclined towards the movable part at an angle less than 1 degree. The support element has a wire diameter of approximately 0.06 mm.

[0011] According to some embodiments of the present disclosure, during the assembly of the optical element driving mechanism, the circuit element is welded from the side facing away from the optical axis, so that the circuit element is electrically connected to the connection element.

[0012] According to some embodiments of the present disclosure, the elastic element includes a first connection point, a second connection point, and a connection line. The first connection point and the second connection point are respectively at both ends of the connection line. The first connection point is disposed on the second movable part. The second connection point is disposed on the first movable part.

[0013] According to some embodiments of the present disclosure, the aperture mechanism is disposed on the second movable part. The aperture mechanism is electrically connected to the elastic element via the first connection point of the elastic element. The circuit element is electrically connected to the second connection point of the elastic element via the connection element. The first connection point is disposed on the movable part on the side closer to the guiding element. The second connection point is disposed on the movable part on the side farther from the guiding element.

[0014] According to some embodiments of the present disclosure, the optical element driving mechanism further includes two elastic elements and a plurality of damping elements. The fixing part includes a base. The base includes an opening. During the assembly of the optical element driving mechanism, one of the damping elements can be applied from outside the base through the opening into the inside of the base. One of the damping elements is disposed between the elastic elements to prevent the elastic elements from hitting each other and causing damage.

[0015] The beneficial effects of the present utility model are that the special configuration of the driving assembly of the present utility model enables the optical element driving mechanism of the present utility model to push a relatively heavy moving part with a small and lightweight driving assembly. In addition, the aperture mechanism can be electrically connected to the moving part through the special structure of the miniaturized circuit assembly of the present utility model, and damping elements with different functions are provided in the optical element driving mechanism of the present utility model, which makes the overall structure more stable. Description of the Drawings

[0016] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in accordance with standard practices in the industry, various features are not shown to scale and are only for illustrative purposes. In fact, the dimensions of the elements may be arbitrarily enlarged or reduced to clearly show the features of the present disclosure.

[0017] Figure 1 is a perspective view of an optical element driving mechanism according to some embodiments of the present disclosure.

[0018] Figure 2 is an exploded view of an optical element driving mechanism according to some embodiments of the present disclosure.

[0019] Figure 3A is a perspective view showing a first driving assembly, a first circuit element, a second circuit element, and a position sensing element of a part disposed on the base.

[0020] Figure 3B is an exploded view showing a first driving assembly, a first circuit element, a second circuit element, and a position sensing element of a part disposed on the base.

[0021] Figure 4 is a side view schematic diagram showing a part of the first driving assembly.

[0022] Figure 5A is a perspective view showing the first moving part and the second moving part observed from the bottom up.

[0023] Figure 5B shows a bottom view of an optical element driving mechanism according to some embodiments of the present disclosure.

[0024] Figure 6AA perspective view showing a first movable part and first, second, third, and fourth magnetic elements, a connecting element embedded in the first movable part. For illustrative purposes, the first movable part is shown in dashed lines.

[0025] Figure 6B A perspective view showing an optical element driving mechanism according to some embodiments of the present disclosure.

[0026] Figure 6C An exploded view showing a second movable part, a position sensing element, a magnetic element, a coil, a magnetic element, and a circuit element.

[0027] Figure 7 A block diagram showing an optical element driving mechanism according to some embodiments of the present disclosure.

[0028] Figure 8 is Figure 6B a partial enlarged view of the optical element driving mechanism.

[0029] Figure 9 is Figure 1 a partial cross-sectional view of the optical element driving mechanism taken along line A-A’ of

[0030] The reference numerals are as follows:

[0031] 1000: Optical element driving mechanism

[0032] 1100: Fixed part

[0033] 1110: Upper cover

[0034] 1120: Base

[0035] 1121: Side wall

[0036] 1121-1: Opening

[0037] 1122, 1123: Retaining wall

[0038] 1124: Terminal

[0039] 1200: Movable part

[0040] 1210: First movable part

[0041] 1211: Groove

[0042] 1212: Receiving part

[0043] 1213: Opening

[0044] 1214: First stopping part

[0045] 1215: Second stopping part

[0046] 1220: Second movable part

[0047] 1221: Contact part

[0048] 1222: Accommodating part

[0049] 1300: Guide element

[0050] 1400: First driving component

[0051] 1411: First magnetic element

[0052] 1411-1: First surface

[0053] 1411-2: Second surface

[0054] 1412: First coil

[0055] 1413: Second coil

[0056] 1414: First magnetic conductive element

[0057] 1421: Second magnetic element

[0058] 1422: Third coil

[0059] 1423: Fourth coil

[0060] 1424: Second magnetic conductive element

[0061] 1431: Third magnetic element

[0062] 1432: Fifth coil

[0063] 1433: Sixth coil

[0064] 1434: Third magnetic conductive element

[0065] 1500: First circuit component

[0066] 1510: First circuit element

[0067] 1520: Second circuit element

[0068] 1610,1620,1630: Position sensing element

[0069] 1700: Second driving component

[0070] 1710: Magnetic element

[0071] 1720: Coil

[0072] 1730,1740: Magnetic conductive element

[0073] 1800: Second circuit component

[0074] 1811: Welding part

[0075] 1810: Circuit element

[0076] 1820: Connecting element

[0077] 1830: Elastic element

[0078] 1831: First connection point

[0079] 1832: Second connection point

[0080] 1833: Connecting wire

[0081] 1834: Extension part

[0082] 1840: Support element

[0083] 1910, 1920, 1930, 1940: Suppression element

[0084] 2000: Aperture mechanism

[0085] A - A’: Line

[0086] W1, W2, W3, W4, W5, W6: Winding axis

[0087] X, Y, Z: Axis

[0088] O: Optical axis Detailed implementation manner

[0089] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure belongs. It is understood that these terms, such as those defined in a commonly used dictionary, should be interpreted to have a meaning consistent with the relevant technology and the background or context of this disclosure, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0090] Furthermore, the ordinal numbers such as "first", "second", etc. used in the specification and claims are used to modify the elements of the claims, and do not themselves imply or represent that the claimed element has any previous ordinal number, nor do they represent the order of one claimed element and another claimed element, or the order in the manufacturing method. The use of multiple ordinal numbers is only used to clearly distinguish one claimed element with a certain name from another claimed element with the same name.

[0091] In addition, in some embodiments of the present disclosure, terms related to joining and connection, such as "connect" and "interconnect", unless otherwise specifically defined, may refer to two structures being in direct contact, or may also refer to two structures not being in direct contact, with other structures disposed between these two structures. And these terms related to joining and connection may also include cases where both structures are movable, or both structures are fixed.

[0092] Figure 1 is a perspective view of the optical element driving mechanism 1000 according to some embodiments of the present disclosure.

[0093] Figure 2 is an exploded view of the optical element driving mechanism 1000 according to some embodiments of the present disclosure. First, please refer to Figure 1 and Figure 2 .

[0094] As Figure 1 and Figure 2 shown, the optical element driving mechanism 1000 includes a fixed part 1100, a movable part 1200, a pair of guiding elements 1300, a first driving assembly 1400, a first circuit assembly 1500, three position sensing elements 1610, 1620, 1630, a second driving assembly 1700, a second circuit assembly 1800, and damping elements 1910 ( Figure 6C ), 1920 ( Figure 6B ), 1930 ( Figure 8 ), 1940 ( Figure 9 ).

[0095] According to some embodiments of the present disclosure, the fixed part 1100 includes an upper cover 1110 and a base 1120. The upper cover 1110 is fixedly connected to the base 1120 to form a space for accommodating other elements of the optical element driving mechanism 1000.

[0096] According to some embodiments of the present disclosure, the movable part 1200 is movable relative to the fixed part 1100. The movable part 1200 includes a first movable part 1210 and a second movable part 1220. The second movable part 1220 is movable relative to the first movable part 1210. The second movable part 1220 may be a carrier for connecting an optical element (not shown) having an optical axis O.

[0097] Specifically, the first movable part 1210 is movable relative to the fixed part 1100 to achieve the optical effect of optical image stabilization (OIS). The second movable part 1220 is movable relative to the first movable part 1210 and the fixed part 1100 to achieve the optical effect of auto focus (AF).

[0098] According to some embodiments of the present disclosure, the guiding element 1300 may be a pair of guide rods. The guiding element 1300 is fixedly disposed on the first movable part 1210. The guiding element 1300 can guide the movement of the second movable part 1220 relative to the first movable part 1210.

[0099] According to some embodiments of the present disclosure, the first driving assembly 1400 is used to drive the first movable part 1210 (which will drive the second movable part 1220 carrying the optical element (not shown) therewith) to move relative to the fixed part 1100.

[0100] According to some embodiments of the present disclosure, the first driving assembly 1400 is electrically connected to the first circuit assembly 1500. The first circuit assembly 1500 includes a first circuit element 1510 and a second circuit element 1520. The position sensing elements 1610 and 1620 are configured to sense the position of the first movable part 1210 relative to the fixed part 1100, and the details will be described in detail below.

[0101] According to some embodiments of the present disclosure, the first driving assembly 1400 includes a first magnetic element 1411 ( Figure 2 ), two first coils 1412 ( Figure 3A ), two second coils 1413 ( Figure 3A ), a first magnetic conductive element 1414 ( Figure 6A ), a second magnetic element 1421 ( Figure 5A ), two third coils 1422 ( Figure 3A ), two fourth coils 1423 ( Figure 3A ), a second magnetic conductive element 1424 ( Figure 6A ), a third magnetic element 1431 ( Figure 2 ), two fifth coils 1432 ( Figure 3A ), two sixth coils 1433 ( Figure 3A ) and a third magnetic conductive element 1434 ( Figure 6A ).

[0102] As Figure 2 shown, the first magnetic element 1411 and the third magnetic element 1431 are disposed on the first movable part 1210. Additionally, although the second magnetic element 1421 is blocked from view in Figure 2 's perspective, it can be seen in Figure 5A that the second magnetic element 1421 is also disposed on the first movable part 1210, and the second magnetic element 1421 is disposed on one side of the first movable part 1210 relative to the first magnetic element 1411. The first magnetic element 1411 is parallel to the second magnetic element 1421.

[0103] Please refer to Figure 2and Figure 3A , the third magnetic element 1431 is not parallel to the first magnetic element 1411 and the second magnetic element 1421. The first coil 1412 and the second coil 1413 correspond to the first magnetic element 1411. The third coil 1422 and the fourth coil 1423 correspond to the second magnetic element 1421. The fifth coil 1432 and the sixth coil 1433 correspond to the third magnetic element 1431.

[0104] According to some embodiments of the present disclosure, the first circuit element 1510 is perpendicular to the second circuit element 1520. The first coil 1412, the third coil 1422, and the fifth coil 1432 are disposed on different surfaces of the first circuit element 1510 facing the optical axis O( Figure 2 ). The second circuit element 1520 is located in a plane perpendicular to the optical axis O.

[0105] For example, the first coil 1412 is located on the surface of the first circuit element 1510 opposite to the third coil 1422, and the fifth coil 1432 is located on the surface of the first circuit element 1510 perpendicular to the first coil 1412 and the third coil 1422.

[0106] Similarly, the second coil 1413 is located on one side of the second circuit element 1520 opposite to the fourth coil 1423, and the sixth coil 1433 is located on one side of the second circuit element 1520 adjacent to the second coil 1413 and the fourth coil 1423.

[0107] Please refer back to Figure 2 , the position sensing elements 1610, 1620 are respectively disposed on different sides of the first circuit element 1510. The position sensing elements 1610, 1620 are used to sense the movement of the first movable part 1210 relative to the fixed part 1100. The position sensing element 1610 corresponds to the first magnetic element 1411. The position sensing element 1620 corresponds to the third magnetic element 1431.

[0108] In detail, the position sensing element 1610 can sense the magnetic field change of the first magnetic element 1411, and determine the position of the first movable part 1210 on the X-axis through a control element (not shown). The position sensing element 1620 can sense the magnetic field change of the third magnetic element 1431, and determine the position of the first movable part 1210 on the Y-axis through the control element (not shown).

[0109] According to some embodiments of the present disclosure, the second driving assembly 1700 is configured to drive the second movable part 1220 to move relative to the fixed part 1100 and the first movable part 1210. The second driving assembly 1700 includes a magnetic element 1710, a coil 1720, and two magnetic conduction elements 1730( Figure 6C ), 1740(Figure 6C )。

[0110] As Figure 2 shown, the magnetic element 1710 is disposed on the second movable part 1220, and the coil 1720 is disposed on the first movable part 1210. In this way, when a driving signal is applied to the second driving component 1700 (for example, current is applied through an external power source), an electromagnetic induction force is generated between the coil 1720 and the magnetic element 1710, driving the second movable part 1220 to move relative to the first movable part 1210, and further relative to the fixed part 1100, so as to achieve the desired optical effect.

[0111] According to some embodiments of the present disclosure, the second driving component 1700 is electrically connected to an external circuit (not shown) via the second circuit component 1800. The second circuit component 1800 includes a circuit element 1810, a connecting element 1820( Figure 6A ), four elastic elements 1830 and four supporting elements 1840.

[0112] As Figure 2 shown, the circuit element 1810 is disposed on the side of the first movable part 1210 opposite to the third magnetic element 1431. The position sensing element 1630 and the coil 1720 are disposed on the circuit element 1810. The position sensing element 1630 is used to sense the movement of the second movable part 1220 relative to the first movable part 1210.

[0113] Specifically, the position sensing element 1630 corresponds to the magnetic element 1710 disposed on the second movable part 1220. The position sensing element 1630 can be an all-in-one integrated circuit (All-in-one IC) that packages a sensing integrated circuit and a control integrated circuit in the same package, so that the position sensing element 1630 determines the position of the second movable part 1220 by sensing the magnetic field change of the magnetic element 1710, and then controls the second movable part 1220 to move to the desired position to achieve closed-loop control.

[0114] According to some embodiments of the present disclosure, the elastic element 1830 can be a spring piece. The elastic element 1830 is movably connected to the first movable part 1210 and the second movable part 1220. The supporting element 1840 can be a set of suspension lines. The supporting element 1840 supports the movement of the movable part 1200 relative to the fixed part 1100. The supporting element 1840 has a wire diameter of approximately 0.06 mm.

[0115] It should be noted that although the support element 1840 is generally parallel to the optical axis O, the "generally parallel" as described herein includes a deviation within less than 5 degrees. Specifically, the end of the support element 1840 closer to the elastic element 1830 is inclined towards the movable part 1200 at an angle of less than 1 degree to provide a more stable support for the movable part 1200. The upper end of the support element 1840 is connected to the elastic element 1830 by soldering. The lower end of the support element 1840 is fixed to the base 1120.

[0116] Figure 3A A perspective view showing the first drive assembly 1400, the first circuit element 1510, the second circuit element 1520, and the position sensing elements 1610, 1620 of the part disposed on the base 1120. Figure 3B An exploded view showing the first drive assembly 1400, the first circuit element 1510, the second circuit element 1520, and the position sensing elements 1610, 1620 of the part disposed on the base 1120.

[0117] As Figure 3A shown, when viewed along the optical axis O (Z-axis), the first coil 1412 and the second coil 1413 at least partially overlap. As Figure 3B shown, the winding axis W1 of the first coil 1412 and the winding axis W2 of the second coil 1413 are not parallel to each other. In detail, the winding axis W1 of the first coil 1412 and the winding axis W2 of the second coil 1413 are perpendicular to each other. For example, the winding axis W1 of the first coil 1412 is parallel to the X-axis, and the winding axis W2 of the second coil 1413 is parallel to the Z-axis.

[0118] Similarly, the winding axis W3 of the third coil 1422 and the winding axis W4 of the fourth coil 1423 are not parallel to each other, but perpendicular to each other, and when viewed along the optical axis O, the third coil 1422 and the fourth coil 1423 at least partially overlap. The winding axis W5 of the fifth coil 1432 and the winding axis W6 of the sixth coil 1433 are not parallel to each other, but perpendicular to each other, and when viewed along the optical axis O, the fifth coil 1432 and the sixth coil 1433 at least partially overlap.

[0119] As Figure 3A and Figure 3B shown, the position sensing element 1610 is disposed in the hollow position of the annular structure of the first coil 1412, and the position sensing element 1620 is disposed in the hollow position of the annular structure of the fifth coil 1432. When viewed along the optical axis O direction, the first coil 1412 and the position sensing element 1610 at least partially overlap. When viewed along the optical axis O direction, the fifth coil 1432 and the position sensing element 1620 at least partially overlap.

[0120] It should be noted that by disposing the position sensing elements 1610 and 1620 on the side of the optical element driving mechanism 1000 (e.g., on the first circuit element 1510) instead of the bottom (e.g., on the second circuit element 1520), the following effects are achieved: Even when the movable part 1200 of the optical element driving mechanism 1000 ( Figure 2 ) has a flipping situation, it does not affect the position judgment of the position sensing elements 1610 and 1620 in the X-axis and Y-axis, and more accurate position information can be sensed compared to the case of being disposed at the bottom.

[0121] According to some embodiments of the present disclosure, the first coil 1412 and the second coil 1413 are respectively used to generate a driving force to move the movable part 1200 ( Figure 2 ) relative to the fixed part 1100 ( Figure 2 ) in a first dimension. The first dimension movement in this embodiment refers to the movement on the X-axis.

[0122] Similarly, the third coil 1422 and the fourth coil 1423 are also respectively used to generate a driving force to move the movable part 1200 ( Figure 2 ) relative to the fixed part 1100 ( Figure 2 ) in a first dimension. The first dimension movement in this embodiment refers to the movement on the X-axis. The first coil 1412, the second coil 1413, the third coil 1422, and the fourth coil 1423 are electrically connected in series. In this way, the first coil 1412, the second coil 1413, the third coil 1422, and the fourth coil 1423 can be driven and controlled simultaneously.

[0123] In addition, the fifth coil 1432 and the sixth coil 1433 are respectively used to generate a driving force to move the movable part 1200 ( Figure 2 ) relative to the fixed part 1100 ( Figure 2 ) in a second dimension. The second dimension movement is different from the first dimension movement. The second dimension movement in this embodiment refers to the movement on the Y-axis.

[0124] As shown in Figure 3A and Figure 3B , the base 1120 includes a side wall 1121, two retaining walls 1122, 1123, and a terminal 1124. The side wall 1121 is located on the side opposite to the fifth coil 1432. The retaining walls 1122, 1123 are respectively located at two adjacent corners of the base 1120. The terminal 1124 can electrically connect the first circuit element 1510 and the second circuit element 1520 to an external circuit (not shown).

[0125] According to some embodiments of the present disclosure, the first coil 1412 is positioned between one end of the sidewall 1121 and one end of the retaining wall 1122. The third coil 1422 is positioned between one end of the sidewall 1121 and one end of the retaining wall 1123. The fifth coil 1432 is positioned between one end of the retaining wall 1122 and one end of the retaining wall 1123.

[0126] Figure 4 A side view schematic diagram of the first driving assembly 1400 of the display portion. For illustrative purposes, the first magnetic element 1411 can be considered to include a first surface 1411-1 and a second surface 1411-2. The first surface 1411-1 and the second surface 1411-2 face different directions. The first surface 1411-1 faces the first coil 1412, and the second surface 1411-2 faces the second coil 1413.

[0127] As Figure 4 shown, the first surface 1411-1 of the first magnetic element 1411 faces the position sensing element 1610 ( Figure 3B ). The shortest distance between the first coil 1412 and the first magnetic element 1411 is different from the shortest distance between the second coil 1413 and the first magnetic element 1411.

[0128] It should be noted that when the movable part 1200 ( Figure 2 ) moves in the first dimension (movement on the X-axis), the shortest distance between the first surface 1411-1 of the first magnetic element 1411 and the first coil 1412 changes accordingly. When the movable part 1200 moves in the first dimension (movement on the X-axis), the shortest distance between the second surface 1411-2 of the first magnetic element 1411 and the second coil 1413 does not change accordingly.

[0129] According to some embodiments of the present disclosure, the structures of the first coil 1412 and the second coil 1413 are different, and the thicknesses of the first coil 1412 and the second coil 1413 are different. For example, in some embodiments, the first coil 1412 can be a flat panel coil (FPCoil), while the second coil 1413 can be a well-known wound coil.

[0130] It should be noted that under the foregoing coil configuration of the present utility model, a magnetic element (for example, the first magnetic element 1411) will correspond to two coils arranged perpendicular to each other (for example, the first coil 1412 and the second coil 1413). In the prior art, coils are usually only arranged on the side or the lower part of the magnetic element (that is, on one side of the magnetic element). To achieve the driving force realized by the configuration of the present utility model, the prior art needs to use thicker magnets and larger-sized coils. Therefore, through the configuration of the first driving assembly 1400 of the present utility model, miniaturization and lightweight of the optical element driving mechanism 1000 with a large driving force can be achieved.

[0131] Figure 5A A perspective view showing the first movable part 1210 and the second movable part 1220 as viewed from below. As Figure 5A shown, when viewed along the optical axis O (Z-axis), the first magnetic element 1411 and the second magnetic element 1421 are located on both sides of the optical axis. It should be noted that during the assembly of the optical element driving mechanism 1000, the guiding element 1300 is assembled into the first movable part 1210 from the direction opposite to the direction (-Z direction) in which light enters the optical element driving mechanism 1000 (+Z direction).

[0132] Figure 5B A bottom view showing the optical element driving mechanism 1000 according to some embodiments of the present disclosure. As Figure 5B shown, when viewed along the optical axis O, the base 1120 at least partially overlaps with the guiding element 1300.

[0133] Figure 6A A perspective view showing the first movable part 1210 and the first magnetic guiding element 1414, the second magnetic guiding element 1424, the third magnetic guiding element 1434, the magnetic guiding element 1730, and the connecting element 1820 embedded in the first movable part 1210, wherein for illustrative purposes, the first movable part 1210 is shown in dashed lines.

[0134] As Figure 6A shown, the first magnetic guiding element 1414 and the second magnetic guiding element 1424 are arranged parallel to each other on the first movable part 1210. The third magnetic guiding element 1434 is arranged on the first movable part 1210 and is perpendicular to the first magnetic guiding element 1414 and the second magnetic guiding element 1424. The magnetic guiding element 1730 is parallel to the third magnetic guiding element 1434. The connecting element 1820 can be a terminal embedded in the first movable part 1210.

[0135] Figure 6B A perspective view showing a part of the optical element driving mechanism 1000 according to some embodiments of the present disclosure. Figure 6CExploded views of the second movable part 1220, the position sensing element 1630, the magnetic element 1710, the coil 1720, the magnetic conductive elements 1730, 1740, and the circuit element 1810 are shown.

[0136] Please refer to Figure 6B , each of the elastic elements 1830 includes a first connection point 1831, a second connection point 1832, a connecting wire 1833, and an extension part 1834. The first connection point 1831 and the second connection point 1832 are respectively at two ends of the connecting wire 1833. The first connection point 1831 is disposed on the second movable part 1220, and the second connection point 1832 is disposed on the first movable part 1210.

[0137] It can be noted that the first connection point 1831 is disposed on the second movable part 1220 on a side closer to the guiding element 1300, while the second connection point 1832 is disposed on the first movable part 1210 on a side farther from the guiding element 1300. The connecting wire 1833 is connected to the extension part 1834 by the second connection point 1832. The supporting element 1840 is connected to the extension part 1834.

[0138] Please refer to Figure 6A and Figure 6B , the first movable part 1210 includes a pair of grooves 1211 ( Figure 6B ), a receiving part 1212 ( Figure 6A ), a pair of openings 1213 ( Figure 6B ), a first stopping part 1214 ( Figure 6A ), and a second stopping part 1215 ( Figure 6A ).

[0139] According to some embodiments of the present disclosure, the grooves 1211 of the first movable part 1210 can accommodate the guiding element 1300 to fix the guiding element 1300 on the first movable part 1210. The grooves 1211 are located on the first stopping part 1214 of the first movable part 1210.

[0140] According to some embodiments of the present disclosure, the receiving part 1212 of the first movable part 1210 receives the circuit element 1810 ( Figure 6C ) disposed thereon. As shown in Figure 6A , part of the magnetic conductive element 1730 is buried in the receiving part 1212 of the first movable part 1210. It should be noted that Figure 6A only shows a part of the magnetic conductive element 1730, and its overall view is shown in Figure 6C .

[0141] As shown in Figure 6CAs shown, the position sensing element 1630 and the coil 1720 are disposed on the circuit element 1810 and electrically connected to the circuit element 1810. The circuit element 1810 is disposed in the receiving portion 1212 of the first movable portion 1210( Figure 6A ). The circuit element 1810 includes four welding portions 1811.

[0142] As Figure 6B shown, the welding portions 1811 of the circuit element 1810 and the connecting element 1820 connected thereto can be seen through the opening 1213 of the first movable portion 1210. In this way, during the assembly of the optical element driving mechanism 1000, by welding the welding portions 1811 of the circuit element 1810 and the connecting element 1820 through the opening 1213 of the first movable portion 1210, the circuit element 1810 can be electrically connected to the connecting element 1820.

[0143] In other words, during the assembly of the optical element driving mechanism, the circuit element 1810 can be welded from the side facing away from the optical axis O, so that the circuit element 1810 is electrically connected to the connecting element 1820.

[0144] According to some embodiments of the present disclosure, when the second movable portion 1220 moves along the optical axis O to a first limit position, the second movable portion 1220 contacts the first stopper 1214. Specifically, before the second movable portion 1220 contacts the first stopper 1214, the damping element 1910( Figure 6C ) disposed on the second movable portion 1220 will first contact the lower surface of the first stopper 1214( Figure 6B ) to achieve a buffering effect. The damping element 1910 described herein can be made of a material such as rubber.

[0145] Similarly, when the second movable portion 1220 moves along the optical axis O to a second limit position, the second movable portion 1220 contacts the second stopper 1215. Specifically, before the second movable portion 1220 contacts the second stopper 1215, the damping element (not shown) disposed on the second movable portion 1220 will first contact the upper surface of the second stopper 1215( Figure 6A ) to achieve a buffering effect. The damping element described herein can be made of a material such as rubber.

[0146] As Figure 6C shown, the second movable portion 1220 includes a pair of contact portions 1221 and a receiving portion 1222. The two contact portions 1221 are respectively located on both sides of the receiving portion 1222. The contact portion 1221 contacts the guiding element 1300( Figure 2 ) serving as a guide rod, so that the second movable portion 1220 is relative to the first movable portion 1210 under the support of the guiding element 1300(Figure 2 ) has smoother movement.

[0147] According to some embodiments of the present disclosure, the magnetic conductive element 1740 is buried in the accommodating portion 1222 of the second movable portion 1220. The magnetic element 1710 is located in the accommodating portion 1222 of the second movable portion 1220. The magnetic conductive element 1730 is partially buried in the first movable portion 1210( Figure 6A ), and the circuit element 1810 is connected to the magnetic conductive element 1730.

[0148] In this way, an attractive force is generated between the magnetic element 1710 provided on the second movable portion 1220 and the magnetic conductive element 1730 provided on the first movable portion 1210, causing the second movable portion 1220 to abut against the guiding element 1300( Figure 6B ) in a direction, and making the movement of the second movable portion 1220 relative to the first movable portion 1210 smoother and less likely to shake, overturn, etc.

[0149] As Figure 6B shown, a suppressing element 1920 is provided on one side of the opening 1213 of the first movable portion 1210 to buffer the possible impact between the first movable portion 1210 and the fixing portion 1100( Figure 2 ). In detail, the suppressing elements 1910( Figure 6C ), 1920 of the present disclosure have a hollow structure and are made of materials such as rubber, and can be used to suppress noise and buffer the impact force.

[0150] As Figure 6A well as Figure 6C shown, the first magnetic conductive element 1414, the second magnetic conductive element 1424, the third magnetic conductive element 1434, and the magnetic conductive element 1740 can enhance the magnetic force of the corresponding first magnetic element 1411, second magnetic element 1421, third magnetic element 1431, and magnetic element 1710.

[0151] It should be understood that the coil 1720( Figure 6C ) of the second driving assembly 1700 is electrically connected to an external circuit (not shown) via the circuit element 1810( Figure 6C ), the connecting element 1820( Figure 6A ), the elastic element 1830( Figure 6B ), and the supporting element 1840( Figure 6B ) in sequence.

[0152] Figure 7A block diagram showing an optical element driving mechanism 1000 according to some embodiments of the present disclosure, wherein a diaphragm mechanism 2000 is assembled on the second movable part 1220. That is to say, the diaphragm mechanism 2000 is disposed on the second movable part 1220 to control the amount of light entering the second movable part 1220, so as to achieve the desired optical effect.

[0153] It should be noted that the diaphragm mechanism 2000 is electrically connected to the elastic element 1830 via the first connection point 1831 ( Figure 6B ) of the elastic element 1830. The circuit element 1810 ( Figure 6B ) is electrically connected to the second connection point 1832 ( Figure 6B ) of the elastic element 1830 via the connection element 1820 ( Figure 6B ).

[0154] Figure 8 For Figure 6B a partial enlarged view of the optical element driving mechanism 1000. As Figure 8 shown, a suppression element 1930 is disposed between the connecting lines 1833 of the two elastic elements 1830 respectively to prevent the connecting lines 1833 of the elastic elements 1830 from hitting each other and causing damage (for example, to avoid the situation where the elastic element 1830 is short-circuited due to impact). It should be noted that the suppression element 1930 described herein may be a gel. In some embodiments, the suppression element 1930 may be a non-conductive material. While the suppression element 1930 is disposed on the connecting lines 1833 of the two elastic elements 1830 respectively, it may also contact at least one of the first movable part 1210 and the second movable part 1220.

[0155] Figure 9 For Figure 1 a partial cross-sectional view of the optical element driving mechanism 1000 taken along the line A-A' of Figure 3A and Figure 3B . It should be noted that although not shown in Figure 9 , the side wall 1121 of the base 1120 may include an opening 1121-1 as shown in

[0156] . During the assembly of the optical element driving mechanism 1000, the suppression element 1940 can be applied to the inside of the base 1120 through the opening 1121-1 from the outside of the base 1120. The suppression element 1940 described herein may be a gel. Figure 2) In this way, the damping element 1940 can suppress the swaying or flipping of the support element 1840 caused by the aforementioned natural resonance frequency by absorbing the resonance frequency naturally generated in the optical element driving mechanism 1000, thereby achieving the effect of stabilizing the structure.

[0157] In summary, the special configuration of the driving assembly of the present utility model enables the optical element driving mechanism of the present utility model to push a movable part with a relatively large mass by means of a small and lightweight driving assembly. In addition, the aperture mechanism can be electrically connected to the movable part through the special structure of the miniaturized circuit assembly of the present utility model, and damping elements with different functions are provided in the optical element driving mechanism of the present utility model, making the overall structure more stable.

[0158] Although the embodiments of the present utility model and their advantages have been disclosed as above, it should be understood that those skilled in the art can make changes, substitutions and modifications without departing from the spirit and scope of the present disclosure. In addition, each claim constitutes an individual embodiment, and the protection scope of the present disclosure also includes the combination of each claim and embodiment.

Claims

1. An optical element driving mechanism, characterized in that, Comprising: A fixed part; A movable part, connected to an optical element having an optical axis, and the movable part is movable relative to the fixed part; And A first driving component for driving the movable part to move relative to the fixed part; Wherein, the movable part includes a first movable part and a second movable part, and the second movable part is movable relative to the first movable part; Wherein, the optical element driving mechanism further includes a first circuit component, the first driving component is electrically connected to the first circuit component, the first driving component includes a first magnetic guiding element, a second magnetic guiding element and a third magnetic guiding element, the first magnetic guiding element and the second magnetic guiding element are arranged on the first movable part in parallel with each other, and the third magnetic guiding element is arranged on the first movable part and perpendicular to the first magnetic guiding element and the second magnetic guiding element.

2. The optical element driving mechanism according to claim 1, wherein, Further included is a guiding element for guiding the movement of the second movable part relative to the first movable part.

3. The optical element driving mechanism according to claim 2, characterized in that The fixed part includes a base, and when observed along the optical axis, at least a part of the base overlaps with the guiding element; During the assembly of the optical element driving mechanism, the guiding element is assembled to the first movable part from a direction opposite to the direction in which light enters the optical element driving mechanism.

4. The optical element driving mechanism according to claim 2, characterized in that The first movable part includes a first stopping part, a second stopping part and a groove. When the second movable part moves along the optical axis to a first limit position, it will contact the first stopping part, and when the second movable part moves along the optical axis to a second limit position, it will contact the second stopping part. The groove can accommodate the guiding element to fix the guiding element on the first movable part, and the groove is located on the first stopping part of the first movable part.

5. The optical element driving mechanism according to claim 2, wherein Further included is a second driving component and a second circuit component. The second driving component is configured to drive the second movable part to move relative to the fixed part and the first movable part. The first circuit component includes a first circuit element and a second circuit element, and the first circuit element and the second circuit element are perpendicular to each other. The second driving component is electrically connected to an external circuit via the second circuit component; Wherein, the second driving component includes two magnetic guiding elements, the two magnetic guiding elements are parallel to the third magnetic guiding element, and one of the two magnetic guiding elements is arranged on the first movable part, and the other of the two magnetic guiding elements is arranged on the second movable part.

6. The optical element driving mechanism according to claim 5, wherein, The second circuit component includes a circuit element, a connecting element, an elastic element and a supporting element. The second driving component is electrically connected to the external circuit in sequence via the circuit element, the connecting element, the elastic element and the supporting element. The connecting element is buried in the first movable part. The supporting element supports the movement of the movable part relative to the fixed part. The supporting element is substantially parallel to the optical axis, but the end of the supporting element closer to the elastic element is inclined towards the movable part at an angle less than 1 degree, and the supporting element has a wire diameter of approximately 0.06 mm.

7. The optical element driving mechanism according to claim 6, characterized in that, During the assembly of the optical element driving mechanism, the circuit element is welded from the side facing away from the optical axis, so that the circuit element is electrically connected to the connection element.

8. The optical element driving mechanism according to claim 6, characterized in that, The elastic element includes a first connection point, a second connection point, and a connecting line. The first connection point and the second connection point are respectively at both ends of the connecting line. The first connection point is provided on the second movable part, and the second connection point is provided on the first movable part.

9. The optical element driving mechanism according to claim 8, wherein, An aperture mechanism is provided on the second movable part. The aperture mechanism is electrically connected to the elastic element via the first connection point of the elastic element. The circuit element is electrically connected to the second connection point of the elastic element via the connection element. The first connection point is provided on the movable part on the side closer to the guiding element, and the second connection point is provided on the movable part on the side farther from the guiding element.

10. The optical element driving mechanism according to claim 1, wherein, It further includes two elastic elements and a plurality of restraining elements. The fixing part includes a base, and the base includes an opening. During the assembly of the optical element driving mechanism, one of the plurality of restraining elements can be applied from outside the base into the base through the opening, and one of the two restraining elements is provided between the two elastic elements.

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