CN219625774U - Optical element driving mechanism - Google Patents

Abstract

An optical element driving mechanism comprises a movable part, a fixed part and a driving assembly, wherein the movable part is used for connecting an optical element, the movable part can move relative to the fixed part, and the driving assembly is used for driving the movable part to move relative to the fixed part; the optical element driving mechanism can further comprise a first elastic element and a second elastic element, wherein the first elastic element is connected with the movable part and the fixed part and is used for electrically connecting the optical element driving mechanism and the optical module, and the second elastic element is arranged on the fixed part; the optical element driving mechanism may further include a first guide bar disposed on the fixing portion and a second guide bar disposed on the fixing portion; the optical element driving mechanism can further comprise a circuit component, a first conductive component and a second conductive component, wherein the circuit component surrounds the movable part, the first conductive component is embedded in the movable part, and the second conductive component is embedded in the base.

Description

Optical element driving mechanism

Technical Field

The present invention relates to an optical element driving mechanism.

Background

With the development of technology, many electronic devices (such as smart phones or digital cameras) have a camera or video recording function. The use of these electronic devices is becoming more and more popular and is evolving towards a convenient and light-weight design that provides more options for the user.

The electronic device with photographing or recording functions is generally provided with an optical element driving mechanism for driving an optical element (e.g. a lens) to move along an optical axis, so as to achieve an Auto Focus (AF) or optical anti-shake (Optical image stablization, OIS) function. The light can be imaged onto the photosensitive element through the aforementioned optical element. However, the trend of the mobile device is to have smaller volume and higher durability, so how to effectively reduce the size of the optical element driving mechanism and improve the durability thereof is an important issue.

Disclosure of Invention

The embodiment of the utility model provides an optical element driving mechanism, including movable part, fixed part and drive assembly. The movable part is used for connecting the optical element. The movable part can move relative to the fixed part. The driving component is used for driving the movable part to move relative to the fixed part.

In some embodiments, the optical element driving mechanism further includes a first elastic element, connecting the movable portion and the fixed portion, for electrically connecting the optical element driving mechanism and the optical module, and a second elastic element disposed on the fixed portion. The first elastic element and the second elastic element are arranged on two sides of the movable part. The thickness of the first elastic element is different from the thickness of the second elastic element.

In some embodiments, the thickness of the first resilient element is less than the thickness of the second resilient element. The fixing part comprises a first side edge, a second side edge, a third side edge and a fourth side edge. The driving component is arranged on the first side, the second side, the third side and the fourth side. The first side is opposite to the third side. The second side is opposite to the fourth side. The fixing part comprises a shell and a base, the shell and the base are arranged along a main shaft, and the main shaft extends in a first direction. The first elastic element comprises a first elastic unit, a second elastic unit, a third elastic unit, a second elastic unit, a fourth elastic unit, a third elastic unit, a fifth elastic unit, a third elastic unit, a sixth elastic unit and a fourth elastic unit, wherein the first elastic unit is arranged on the first side and the second side, the second elastic unit is arranged on the second side and the fourth side, and the third elastic unit is arranged on the third side and the fifth elastic unit. The first line segment passes through the main axis as viewed along the main axis. The first elastic unit and the sixth elastic unit are symmetrical to the first line segment. The second elastic unit and the fifth elastic unit are symmetrical to the first line segment. The third elastic unit and the fourth elastic unit are symmetrical to the first line segment.

In some embodiments, the optical element driving mechanism further includes a first guide bar disposed on the fixing portion, and a second guide bar disposed on the fixing portion. The first guide rod and the second guide rod are positioned at two sides of the movable part. The second line segment passes through the first guide rod and the second guide rod when observed along the main shaft. The first line segment and the second line segment are perpendicular to each other. The first elastic unit and the sixth elastic unit are positioned at one side of the second line segment, and the second elastic unit, the third elastic unit, the fourth elastic unit and the fifth elastic unit are positioned at the other side of the second line segment. The second line segment does not pass through the first elastic element.

In some embodiments, the first elastic unit includes a first movable portion connecting portion provided on the movable portion, a first fixed portion connecting portion provided on the fixed portion, and a first string connecting the first movable portion connecting portion and the first fixed portion connecting portion. The second elastic unit comprises a second movable part connecting part, a second fixed part connecting part and a second string wire, wherein the second movable part connecting part is arranged on the movable part, the second fixed part connecting part is arranged on the fixed part, and the second string wire is connected with the second movable part connecting part and the second fixed part connecting part. The third elastic unit comprises a third movable part connecting part, a third fixed part connecting part and a third chord line, wherein the third movable part connecting part is arranged on the movable part, the third fixed part connecting part is arranged on the fixed part, and the third chord line is connected with the third movable part connecting part and the third fixed part connecting part. The fourth elastic unit comprises a fourth movable part connecting part, a fourth fixed part connecting part and a fourth string wire, wherein the fourth movable part connecting part is arranged on the movable part, the fourth fixed part connecting part is arranged on the fixed part, and the fourth movable part connecting part and the fourth fixed part connecting part are connected. The fifth elastic unit comprises a fifth movable part connecting part, a fifth fixed part connecting part and a fifth string wire, wherein the fifth movable part connecting part is arranged on the movable part, the fifth fixed part connecting part is arranged on the fixed part, and the fifth string wire is connected with the fifth movable part connecting part and the fifth fixed part connecting part. The sixth elastic unit comprises a sixth movable part connecting part, a sixth fixed part connecting part and a sixth string, wherein the sixth movable part connecting part is arranged on the movable part, the sixth fixed part connecting part is arranged on the fixed part, and the sixth string is connected with the sixth movable part connecting part and the sixth fixed part connecting part. The distance between the first movable part connecting part and the first fixed part connecting part is greater than the distance between the second movable part connecting part and the second fixed part connecting part. The distance between the first movable part connecting part and the first fixed part connecting part is greater than the distance between the third movable part connecting part and the third fixed part connecting part. The distance between the sixth movable part connecting part and the sixth fixed part connecting part is greater than the distance between the fourth movable part connecting part and the fourth fixed part connecting part. The distance between the sixth movable part connecting part and the sixth fixed part connecting part is greater than the distance between the fifth movable part connecting part and the fifth fixed part connecting part.

In some embodiments, the second string includes a second string first portion, a second movable portion connection, a second string second portion, a second fixed portion connection, and a second string turn, the second string first portion and the second string second portion being connected. The second string first portion extends in a different direction than the second string second portion, and the angle between the second string first portion and the second string second portion is an acute angle. The distance between the second movable part connecting part and the second fixed part connecting part is smaller than the length of the first part of the second string. The distance between the second movable part connecting part and the second fixed part connecting part is smaller than the length of the second string line second part.

In some embodiments, the driving assembly includes a first driving magnetic element disposed on the first side, a second driving magnetic element disposed on the second side, a third driving magnetic element disposed on the third side, a fourth driving magnetic element disposed on the fourth side, a first driving coil disposed on the movable portion corresponding to the first driving magnetic element, the second driving coil disposed on the movable portion corresponding to the second driving magnetic element, the third driving coil disposed on the movable portion corresponding to the third driving magnetic element, and the fourth driving coil disposed on the movable portion corresponding to the fourth driving magnetic element. The first driving coil is connected in series with the second driving coil. The third driving coil is connected in series with the fourth driving coil. The first driving coil and the second driving coil are connected in parallel with the third driving coil and the fourth driving coil.

In some embodiments, the fixing portion further includes a fifth side, a sixth side, a seventh side, and an eighth side. The fifth side is located between the first side and the second side. The sixth side is located between the second side and the third side. The seventh side is located between the third side and the fourth side. The eighth side is located between the fourth side and the first side. The first movable part connecting part, the second fixed part connecting part and the second movable part connecting part are arranged on the fifth side edge. The third fixed part connecting part, the third movable part connecting part, the fourth fixed part connecting part and the fourth movable part connecting part are arranged on the sixth side edge. The fifth fixed part connecting part, the fifth movable part connecting part and the sixth movable part connecting part are arranged on the seventh side edge. The first fixing part connecting part and the sixth fixing part connecting part are arranged on the eighth side edge. The optical element driving mechanism further comprises an adhesion element, and the adhesion element is arranged on the first movable part connecting part, the first fixed part connecting part, the second movable part connecting part, the second fixed part connecting part, the third movable part connecting part, the third fixed part connecting part, the fourth movable part connecting part, the fourth fixed part connecting part, the fifth movable part connecting part, the fifth fixed part connecting part, the sixth movable part connecting part and the sixth fixed part connecting part.

In some embodiments, the optical element driving mechanism further includes a circuit component surrounding the movable portion and the first conductive component, and embedded in the movable portion, including the first conductive portion, the second conductive portion, the third conductive portion, the fourth conductive portion, and the second conductive component, and embedded in the base. The circuit assembly is electrically connected with the first driving coil and the second driving coil through the third elastic unit and the first conductive part. The circuit component is electrically connected with the third driving coil and the fourth driving coil through the fourth elastic unit and the second conductive part. The first driving coil and the second driving coil are connected with the third driving coil and the fourth driving coil in parallel through the third conductive part and the fourth conductive part. The optical module is electrically connected with the second conductive component through the first elastic unit, the second elastic unit, the fifth elastic unit and the sixth elastic unit. The first conductive component and the second conductive component are electrically insulated from each other. The third elastic unit and the fourth elastic unit are electrically insulated from the first elastic unit, the second elastic unit, the fifth elastic unit and the sixth elastic unit.

In some embodiments, the second conductive element includes a first wire outlet end, a second wire outlet end, a third wire outlet end, and a fourth wire outlet end, which are sequentially arranged at the first side. The first wire outlet end is electrically connected with the first elastic unit. The second wire outlet end is electrically connected with the sixth elastic unit. The third wire outlet end is electrically connected with the fifth elastic unit. The fourth wire outlet end is electrically connected with the second elastic unit. In the first direction, the first conductive part and the second conductive part are at different heights from the third conductive part and the fourth conductive part.

Drawings

Embodiments of the present invention will be described in detail below with reference to the drawings. It should be noted that various features are not shown to scale and are merely illustrative in accordance with practice standard in the industry. In fact, the dimensions of the elements may be arbitrarily expanded or reduced to improve the presently disclosed subject matter.

Fig. 1A is a schematic diagram of an optical element driving mechanism.

Fig. 1B is an exploded view of the optical element driving mechanism.

Fig. 1C is a top view of an optical element driving mechanism.

Fig. 1D is a side view of an optical element driving mechanism.

Fig. 1E is a cross-sectional view taken along line A-A of fig. 1C.

Fig. 1F is a sectional view taken along line B-B of fig. 1C.

Fig. 1G is a perspective view of an optical element driving mechanism.

Fig. 2A is a top view of some of the elements of the optical element drive mechanism.

Fig. 2B is a perspective view of some elements of the optical element driving mechanism.

FIG. 3A is a schematic diagram of a driving magnetic element.

Fig. 3B is a bottom view of the driving magnetic element.

Fig. 4A is a top view of a circuit assembly.

Fig. 4B is a schematic diagram of a circuit assembly.

Fig. 4C is a side view of the circuit assembly.

Fig. 5A is a schematic diagram of some elements of an optical element driving mechanism.

Fig. 5B is a schematic diagram of some elements of the optical element driving mechanism.

FIG. 5C is a schematic diagram of a position sensing element, sensing magnetic element.

Fig. 6A is a schematic view of the movable portion and the driving coil.

Fig. 6B is a plan view of the movable portion and the driving coil.

Fig. 6C is a side view of the movable portion and the driving coil.

Fig. 7A is a schematic view of a first elastic element.

Fig. 7B is an enlarged view of the second elastic unit.

Fig. 8 is a schematic diagram of some elements of an optical element driving mechanism.

Fig. 9A is a schematic diagram of some elements of an optical element driving mechanism.

Fig. 9B is an enlarged schematic view of some elements of the optical element driving mechanism.

Fig. 9C is an enlarged schematic view of a portion of the base.

Fig. 10A and 10B are schematic diagrams of the optical element driving mechanism switched between the first state and the second state by an external driving component.

Reference numerals illustrate:

1000: optical element driving mechanism

1100: fixing part

1110: outer casing

1120: frame

1130: base seat

1131: first guide rod setting part

1132: the first guide rod is provided with a groove

1133: first guide rod setting surface

1134: second guide rod setting part

1135: the second guide rod is provided with a groove

1140: bottom plate

1151: first side edge

1152: second side edge

1153: third side edge

1154: fourth side edge

1155: fifth side edge

1156: sixth side edge

1157: seventh side edge

1158: eighth side edge

1160: first guide rod

1161: first end of first guide rod

1162: second end of first guide rod

1170: second guide rod

1171: first end of second guide rod

1172: second end of second guide rod

1181: first connection opening

1182: second connection opening

1183: first bonding element

1184: second adhesive element

1200: movable part

1201: top surface of movable part

1210: main body

1221: first pressing part

1222: second pressing part

1223: third pressing part

1224: fourth pressing part

1231: first upper stop part

1232: second upper stop part

1233: third upper stop part

1234: fourth upper stop part

1235: fifth upper stop part

1236: sixth upper stop part

1241: first side stop part

1242: second side stop part

1243: third side stop

1244: fourth side stop

1251: a first opening

1252: a second opening

1261: first positioning magnetic element

1262: second positioning magnetic element

1270: connecting wire

1300: driving assembly

1310: driving magnetic element

1311: first driving magnetic element

1312: second driving magnetic element

1313: third driving magnetic element

1314: fourth driving magnetic element

1315: a first lower surface

1316: a second lower surface

1320: driving coil

1321: first driving coil

1322: second driving coil

1323: third driving coil

1324: fourth driving coil

1331: first magnetic conductive element

1332: second magnetic conductive element

1333: third magnetic conductive element

1334: fourth magnetic conductive element

1341: first magnetic conduction unit

1342: second magnetic conduction unit

1350: interface(s)

1351: first driving magnetic unit

1352: second driving magnetic unit

1353: first side surface

1354: second side surface

1355: a first lower surface

1356: a second lower surface

1400: first elastic element

1401: first elastic unit

1402: second elastic unit

1403: third elastic unit

1404: fourth elastic unit

1405: fifth elastic unit

1406: sixth elastic unit

1411: first movable part connecting part

1412: second movable part connecting part

1413: third movable part connecting part

1414: fourth movable part connecting part

1415: fifth movable part connecting part

1416: sixth movable part connecting part

1421: first fixing part connecting part

1422: second fixing part connecting part

1423: third fixing part connecting part

1424: fourth fixed part connecting part

1425: fifth fixed part connecting part

1426: sixth fixing portion connecting portion

1431: first string

1432: second string

1433: third chord line

1434: fourth string

1435: fifth string

1436: sixth string

1451: second string first portion

1452: second string second portion

1453: second string turning part

1461: first line segment

1462: second line segment

1500: second elastic element

1510: first base connecting part

1511: a first opening

1520: first string part

1530: second base connecting part

1531: a second opening

1540: second string part

1550: contact portion

1560: body

1561: first convex column

1562: second convex column

1563: third convex column

1564: fourth convex column

1571: first connecting element

1572: second connecting element

1573: third connecting element

1574: fourth connecting element

1600: circuit assembly

1610: surrounding part

1611: first segment

1612: second section part

1613: third section part

1614: fourth segment

1615: fifth section part

1620: first circuit connection part

1630: second circuit connection part

1641: first extension part

1642: second extension part

1643: flexible connecting part

1650: first conductive component

1651: first conductive part

1652: second conductive part

1653: third conductive part

1654: fourth conductive part

1660: conductive assembly

1661: first wire outlet end

1662: second outlet end

1663: third wire outlet end

1664: fourth wire outlet end

1671: first electronic component

1672: second electronic component

1681: memory cell

1682: processing unit

1700: sensing assembly

1710: position sensing element

1711: first sensing magnetic unit

1712: second sensing magnetic unit

1720: sensing magnetic element

1730: stiffening element

1800: optical element

1801: optical element surface

1900: main shaft

1910: virtual plane

1920: external drive assembly

D1: first distance

D2: second distance

D3: third distance

D4: fourth distance

D5: distance of

G1: spacing of

H1: first height of

H2: second height

And H3: third height

L1: first length

L2: second length

L3: third length

L4: fourth length

L5, L6: length of

W1, W2, W3, W4: width of (L)

θ: included angle

Detailed Description

Many different implementations or examples are disclosed below to implement the various features of the provided subject matter, and specific elements and examples of arrangements thereof are described below to illustrate the present invention. These examples are, of course, merely illustrative and are not intended to limit the scope of the present invention. For example, references in the specification to a first feature being formed over a second feature may include embodiments in which the first feature is in direct contact with the second feature, and may include embodiments in which other features may be present between the first feature and the second feature, in other words, the first feature is not in direct contact with the second feature.

Furthermore, repeated reference numerals or designations in the various embodiments may be used merely to simply and clearly describe the invention and do not represent a particular relationship between the various embodiments and/or structures in question. Furthermore, forming, connecting and/or coupling to another feature over, onto, and/or onto another feature in the present invention may include embodiments in which the feature is formed in direct contact, and may also include embodiments in which additional features inserted into the feature may be formed such that the feature may not be in direct contact. Furthermore, spatially relative terms, such as "vertical," "above," "upper," "lower," "bottom," and the like, may be used herein to describe various orientations of the device in the figures and to facilitate the relationship between the element(s) or feature(s) and the other element(s) or feature(s), unless otherwise indicated.

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

Furthermore, the use of ordinal numbers such as "first," "second," etc., in the description and the claims to modify a claim element does not by itself connote any preceding ordinal number for a particular claim element, nor does it connote an ordering of another claim element, or a method of manufacture, but rather the use of ordinal numbers merely serves to distinguish one claim element having a particular name from another claim element having a same name.

Furthermore, in some embodiments of the present invention, terms such as "connected," "interconnected," and the like, with respect to joined, connected, and the like, may refer to two structures as being in direct contact, or may refer to two structures as being not in direct contact, unless otherwise specified, with other structures disposed between the two structures. And the term coupled, connected, may also include situations where both structures are movable, or where both structures are fixed.

The present invention provides an optical element driving mechanism for driving an optical element to move. For example, fig. 1A is a schematic diagram of an optical element driving mechanism 1000, fig. 1B is an exploded view of the optical element driving mechanism 1000, fig. 1C is a top view of the optical element driving mechanism 1000, fig. 1D is a side view of the optical element driving mechanism 1000, fig. 1E is a sectional view along a line A-A of fig. 1C, fig. 1F is a sectional view along a line B-B of fig. 1C, and fig. 1G is a perspective view of the optical element driving mechanism 1000.

As shown in fig. 1A to 1G, the optical element driving mechanism 1000 mainly includes a fixed portion 1100, a movable portion 1200, a driving component 1300, a first elastic element 1400, a second elastic element 1500, and a circuit component 1600, which are arranged along a main shaft 1900. The optical element driving mechanism 1000 may be used to drive the optical element 1800 for movement. Specifically, the optical element 1800 may be disposed on the movable portion 1200, and the driving assembly 1300 may be used to drive the movable portion 1200 and the optical element 1800 together to move relative to the fixed portion 1100, so as to achieve an Auto Focus (AF) function. The main shaft 1900 may extend in a first direction (Z direction).

In some embodiments, the optical element 1800 may be, for example, a lens (lens), a mirror (mirror), a prism (prism), a beam splitter (beam splitter), an aperture (aperture), a liquid lens (liquid lens), a photosensitive element (image sensor), a camera module (camera module), a ranging module (ranging module), and the like. It should be noted that the definition of optical element herein is not limited to elements related to visible light, elements related to invisible light (e.g., infrared light, ultraviolet light), etc. may also be included in the present invention.

In some embodiments, the stationary portion 1100 may include a housing 1110, a frame 1120, a base 1130, a bottom plate 1140, aligned along a main axis 1900. The housing 1110 and the base 1140 may be combined to form a housing of the optical element driving mechanism 1000 for accommodating and protecting other elements. The frame 1120 and the base 1130 may be disposed between the housing 1110 and the base 1140 to provide structural strength of the optical element driving mechanism 1000. In some embodiments, the base 1130 may have a polygonal shape when viewed along the main axis 1900.

In some embodiments, the driving assembly 1300 may include a driving magnetic element 1310 and a driving coil 1320, which are disposed on the fixed portion 1100 and the movable portion 1200, respectively, or the positions may be interchanged, depending on the design requirements. When current passes through the driving coil 1320, the driving coil 1320 acts with the magnetic field of the driving magnetic element 1310, and generates an electromagnetic driving force (electromagnetic force) to drive the movable portion 1200 and the optical element 1800 to move relative to the fixed portion 1100, so as to achieve the auto-focusing function. In some embodiments, the drive assembly 1300 may also include piezoelectric elements, shape memory alloys, and the like.

In some embodiments, the first elastic element 1400 and the second elastic element 1500 may be disposed at two sides of the movable portion 1200. The first elastic element 1400 can be elastically connected to the fixed portion 1100 (e.g. the base 1130) and the movable portion 1200, and can be electrically connected to the driving coil 1320 and the circuit assembly 1600, so as to input a current to the driving coil 1320. The second elastic member 1500 may be disposed on the fixed portion 1100 (e.g., the base 1130), and the movable portion 1200 may be spaced apart from or in contact with each other with the second elastic member 1500 to control the position of the movable portion 1200 (to be described later).

In some embodiments, the movable portion 1200 and the fixed portion 1100 may be movably connected by a first guide bar 1160 and a second guide bar 1170 disposed on the fixed portion 1100. First guide 1160 may have a first guide first end 1161, a first guide second end 1162 opposite each other, first guide first end 1161 may be fixedly coupled to base 1130, and first guide second end 1162 may be fixedly coupled to housing 1110. The second guide 1170 can have a second guide first end 1171, a second guide second end 1172 opposite each other, the second guide first end 1171 can be fixedly coupled to the base 1130, and the second guide second end 1172 can be fixedly coupled to the housing 1110, allowing the first guide 1160 and the second guide 1170 to be disposed on the fixed portion 1100.

In some embodiments, the first guide bar 1160 and the second guide bar 1170 may directly contact the movable portion 1200, as viewed along the main shaft 1900, to define a moving direction of the movable portion 1200 relative to the fixed portion 1100. The first guide bar 1160 and the second guide bar 1170 may comprise magnetically permeable materials.

In some embodiments, first guide first end 1161 may be coupled to base 1130 in a different manner than first guide second end 1162 is coupled to housing 1110, and second guide first end 1171 may be coupled to base 1130 in a different manner than second guide second end 1172 is coupled to housing 1110. For example, as shown in fig. 1F, first guide first end 1161, second guide first end 1171 may be adhered to housing 1110 by glue. In addition, the base 1130 may have a first connection opening 1181 and a second connection opening 1182. By designing the first connection opening 1181 and the second connection opening 1182, laser light can be applied from the back surface (the surface facing away from the outer shell 1110) of the base 1130 to the first guide rod second end 1162 and the second guide rod second end 1172 for heating, so that the first guide rod 1160 and the second guide rod 1170 can be respectively connected with the first connection opening 1181 and the second connection opening 1182 through laser welding.

In some embodiments, first and second attachment elements 1183 and 1184 may also be disposed in the first and second connection openings 1181 and 1182, respectively, to connect the base 1130 to the first and second guide rods 1160 and 1170. In other words, in the first direction (Z direction), the first bonding element 1183 at least partially overlaps the first guide bar 1160, the second bonding element 1184 at least partially overlaps the second guide bar 1170, the first guide bar 1160 is not exposed from the first connection opening 1181, and the second guide bar 1170 is not exposed from the second connection opening 1182, so as to ensure that there are enough first bonding element 1183 and second bonding element 1184 to further fix the base 1130 and the first guide bar 1160 and the second guide bar 1170.

Fig. 2A is a top view of some elements of the optical element driving mechanism 1000, and fig. 2B is a perspective view of some elements of the optical element driving mechanism 1000, wherein the housing 1110 is omitted to further show the positional relationship of other elements. As shown in fig. 1F and 2A, the first guide bar 1160 and the second guide bar 1170 may extend in the Z direction, the movable portion 1200 may contact the first guide bar 1160 and the second guide bar 1170, and the first guide bar 1160 and the second guide bar 1170 may be used to define a movement direction of the movable portion 1200, for example, the movable portion 1200 may slide in the Z direction relative to the first guide bar 1160 and the second guide bar 1170. In order to facilitate sliding, a first lubricious coating and a second lubricious coating may be provided on the surfaces of the first guide bar 1160 and the second guide bar 1170, respectively, and may comprise teflon, for example. In addition, additional lubrication elements (e.g., lubrication oil) may be further provided on the first and second guide rods 1160, 1170 and directly contact the aforementioned first and second lubrication coatings to further allow the movable portion 1200 to slide relative to the first and second guide rods 1160, 1170.

As shown in fig. 2A, the base 1130 of the fixing portion 1100 may have a first side 1151, a second side 1152, a third side 1153, a fourth side 1154, a fifth side 1155, a sixth side 1156, a seventh side 1157, and an eighth side 1158, wherein the first side 1151 is opposite to the third side 1153, the second side 1152 is opposite to the fourth side 1154, the fifth side 1155 is opposite to the sixth side 1156, and the seventh side 1157 is opposite to the eighth side 1158. The fifth side 1155 is located between the first side 1151 and the second side 1152, the sixth side 1156 is located between the second side 1152 and the third side 1153, the seventh side 1157 is located between the third side 1153 and the fourth side 1154, and the eighth side 1158 is located between the fourth side 1154 and the first side 1151. In some embodiments, the first guide bar 1160 may be located at the fifth side 1155 and the second guide bar 1170 may be located at the seventh side 1157, that is, the first guide bar 1160 and the second guide bar 1170 may be located at both sides of the movable portion 1200.

In some embodiments, the driving magnetic element 1310 may include a first driving magnetic element 1311, a second driving magnetic element 1312, a third driving magnetic element 1313, and a fourth driving magnetic element 1314 disposed on the first side 1151, the second side 1152, the third side 1153, and the fourth side 1154, respectively. The driving coils 1320 may include a first driving coil 1321, a second driving coil 1322, a third driving coil 1323, and a fourth driving coil 1324, which are disposed on the movable portion 1200 and correspond to the first driving magnetic element 1311, the second driving magnetic element 1312, the third driving magnetic element 1313, and the fourth driving magnetic element 1314, respectively. In addition, in some embodiments, a first magnetic conductive element 1331, a second magnetic conductive element 1332, a third magnetic conductive element 1333, and a fourth magnetic conductive element 1334 may be disposed on the base 1130, corresponding to the first driving magnetic element 1311, the second driving magnetic element 1312, the third driving magnetic element 1313, and the fourth driving magnetic element 1314, respectively.

In some embodiments, the first, second, third, and fourth driving magnetic elements 1311, 1312, 1313, 1314 may have similar structures. Taking the fourth driving magnetic element 1314 as an example, the fourth driving magnetic element 1314 may include a first driving magnetic unit 1351 and a second driving magnetic unit 1352, which are arranged in the first direction. As seen from a second direction (e.g., Y-direction), in some embodiments, as shown in fig. 2B, the first drive magnetic unit 1351, the fourth drive coil 1324 are at least partially exposed to the fourth magnetically permeable element 1334, and the second drive magnetic unit 1352 is not exposed to the fourth magnetically permeable element 1334. In addition, as shown in fig. 1E, in the third direction (for example, X direction), the first magnetic conductive element 1331 and the housing 1110 have a distance G1 greater than zero, and the second magnetic conductive element 1332, the third magnetic conductive element 1333, and the fourth magnetic conductive element 1334 may have a distance G greater than zero from the housing 1110.

Fig. 3A is a schematic diagram of the driving magnetic element 1310, and fig. 3B is a bottom view of the driving magnetic element 1310. In some embodiments, the first driving magnetic unit 1351 includes a first side 1353, a second side 1354, and a first lower surface 1355, and the second driving magnetic unit 1352 includes a second lower surface 1356, the second side 1354 abuts the second lower surface 1356, and the first side 1353 is neither perpendicular nor parallel to the second side 1354. The first side 1354 is coupled to the second side 1355. In some embodiments, as shown in fig. 2B, the fourth magnetically permeable element 1334 at least partially overlaps the first side 1353, and the first and second sides 1353, 1354 are at least partially exposed from the fourth magnetically permeable element 1334, as viewed from the second direction. In some embodiments, the first lower surface 1355 faces in the same direction (e.g., -Z direction) as the second lower surface 1356, the second lower surface 1356 is at least partially exposed from the first drive magnet unit 1351, the first drive magnet unit 1351 has a polygonal shape, and the second drive magnet unit 1352 has a rectangular shape as viewed in the first direction. By providing the first driving magnet unit 1351 with a polygonal shape, the required volume space can be reduced, thereby achieving miniaturization. In addition, since the second driving magnetic unit 1352 has a rectangular shape, it has a larger size than the first driving magnetic unit 1351, and can provide a stronger magnetic force to enhance the performance of the optical element driving mechanism 1000.

In some embodiments, the first magnetic conductive element 1331, the second magnetic conductive element 1332, the third magnetic conductive element 1333, and the fourth magnetic conductive element 1334 may have similar structures. Taking the fourth magnetic conductive element 1334 as an example, as shown in fig. 2B, the fourth magnetic conductive element 1334 may include a first magnetic conductive unit 1341 and a second magnetic conductive unit 1342 connected to each other, where in the third direction, the first magnetic conductive unit 1341 has a first length L1, the second magnetic conductive unit 1342 has a second length L2, and the first length L1 is smaller than the second length L2. In some embodiments, the first magnetically permeable unit 1341 may at least partially overlap the first driving magnetic unit 1351, and the second magnetically permeable unit 1342 may at least partially overlap the first driving magnetic unit 1351, the second driving magnetic unit 1352 for magnetically permeable. In some embodiments, in the third direction, the first side 1353 has a third length L3, the second drive magnetic unit 1352 has a fourth length L4, and the second length L2> the fourth length L4> the third length L3> the first length L1.

Fig. 4A is a top view of circuit assembly 1600, fig. 4B is a schematic diagram of circuit assembly 1600, and fig. 4C is a side view of circuit assembly 1600. The circuit assembly 1600 may be disposed on the fixing portion 1100, and may include, for example, a surrounding portion 1610, a first circuit connecting portion 1620, a second circuit connecting portion 1630, a first extending portion 1641, a second extending portion 1642, and a flexible connecting portion 1643. The surrounding portion 1610 may surround the movable portion 1200 and the main shaft 1900, and may include a first segment 1611, a second segment 1612, a third segment 1613, a fourth segment 1614, and a fifth segment 1615 connected in sequence. In some embodiments, the first magnetic permeable element 1331, the second magnetic permeable element 1332, the third magnetic permeable element 1333, and the fourth magnetic permeable element 1334 may be disposed on the circuit assembly 1600. The surrounding portion 1610 and the second extending portion 1642 may at least partially overlap, and the first extending portion 1641 and the second extending portion 1642 may not overlap, the base 1130 and the circuit assembly 1600 may at least partially overlap, and the movable portion 1200 and the second extending portion 1642 may at least partially overlap, and not overlap, the surrounding portion 1610 when viewed along the main axis 1900.

As shown in fig. 2A, the first segment 1611 is located on the eighth side 1158, the second segment 1612 is located on the first side 1151, the third segment 1613 is located on the fifth side 1155, the fourth segment 1614 is located on the second side 1152, and the fifth segment 1615 is located on the sixth side 1156. The first extending portion 1641 is located on the first side 1151 and extends from the surrounding portion 1610 toward the second direction. In other words, the circuit assembly 1600 is not disposed on the fourth side 1154. The second extension 1642 may connect the second segment 1612 and is located between the base 1130 and the bottom plate 1140. The flexible connection part 1643 may connect to the first extension part 1641, and the first circuit connection part 1620 may connect to the flexible connection part 1643 and may extend in the third direction. The second circuit connection part 1630 may be connected to the second extension part 1642 and extend in the first direction.

In some embodiments, the normal direction of the second extension portion 1642 is parallel to the first direction, and the normal direction of the first, second, third, fourth, fifth segments 1611, 1612, 1613 is perpendicular to the first direction, and the flexible connection portion 1643 is spaced from the fixed portion 1100. Moreover, in some embodiments, in a third direction, the first and third magnetically permeable elements 1331, 1333 at least partially overlap the circuit assembly 1600, and in a second direction, the second magnetically permeable element 1332 at least partially overlaps the circuit assembly 1600. Further, as viewed from the second direction, as shown in fig. 1G, the fourth magnetically permeable element 1334 is exposed from the circuit assembly 1600 and is spaced apart from the circuit assembly 1600. In some embodiments, an insulating element (not shown), such as glue, may be provided between the circuit assembly 1600 and the housing 1110 to connect the circuit assembly 1600 and the housing 1110 and avoid shorting.

In some embodiments, as shown in fig. 2A and 4A, the circuit assembly 1600 may further include a first electronic component 1671 and a second electronic component 1672 disposed on the surrounding portion 1610, respectively located on the fifth side 1155 and the eighth side 1158, and located between the surrounding portion 1610 and the housing 1110.

In some embodiments, as shown in fig. 4C, the bottom surface of the second extension 1642 coincides with the virtual plane 1910. And the first extending portion 1641 and the surrounding portion 1610 are respectively located at two sides of the virtual plane 1910. In the first direction, the first extending portion 1641 has a first distance D1 from the virtual plane 1910, the first circuit connecting portion 1620 has a second distance D2 from the virtual plane 1910, the fourth segment 1614 has a third distance D3 from the virtual plane 1910, the fifth segment 1615 has a fourth distance D4 from the virtual plane 1910, and the second distance D2> the fourth distance D4> the third distance D3> the first distance D1. In some embodiments, the third distance D3 may also be smaller than the first distance D1, depending on design requirements. In some embodiments, in the first direction, the first segment 1611 has a first height H1, the fourth segment 1614 has a second height H2, the fifth segment 1615 has a third height H3, and the first height H1< the second height H2< the third height H3. In some embodiments, the first segment 1611 at least partially overlaps the third segment 1613 as viewed from the second direction. In addition, the third segment 1613 is at least partially exposed from the first segment 1611, and the second extension portion 1642 and the surrounding portion 1610 do not overlap, so as to achieve miniaturization.

Fig. 5A and 5B are schematic diagrams of some elements of the optical element driving mechanism 1000. As shown in fig. 2A, 5A, and 5B, the optical element driving mechanism 1000 further includes a sensing component 1700, and the sensing component 1700 may be located on a sixth sensing side 1156 and includes a position sensing element 1710, a sensing magnetic element 1720, and a stiffening element 1730. In some embodiments, the sensing assembly 1700 at least partially overlaps the second extension 1642, as viewed along the main axis 1900.

In some embodiments, the position sensing element 1710 may include, for example, a Hall effect Sensor (Hall Sensor), a magneto-resistive effect Sensor (Magnetoresistance Effect Sensor, MR Sensor), a giant magneto-resistive effect Sensor (Giant Magnetoresistance Effect Sensor, GMR Sensor), a tunneling magneto-resistive effect Sensor (Tunneling Magnetoresistance Effect Sensor, TMR Sensor), or a magnetic flux Sensor (Fluxgate Sensor). The position sensing element 1710 can be used to sense the magnetic field emitted by the sensing magnetic element 1720, and the position sensing element 1710 and the sensing magnetic element 1720 can be disposed on the fixed portion 1100 (or the circuit assembly 1600), the movable portion 1200, or the positions can be interchanged, so that the position of the movable portion 1200 relative to the fixed portion 1100 (or the circuit assembly 1600) can be sensed by the sensing assembly 1700. In some embodiments, the first electronic element 1671 and the sensing component 1700 may be disposed on opposite sides of the movable portion 1200 to avoid interfering with each other. In some embodiments, the first electronic component 1671 may include a plurality of connection pins, and at least one half of the connection pins are not electrically connected to the circuit assembly 1600.

In some embodiments, the stiffening element 1730 may be disposed on the fixed portion 1100 or the circuit assembly 1600, for example, may be disposed on the fifth segment 1615 of the surrounding portion 1610, and the circuit assembly 1600 may be located between the stiffening element 1730 and the position sensing element 1710, while the sensing magnetic element 1720 and the stiffening element 1730 may be disposed on either side of the position sensing element 1710. In some embodiments, the material of the stiffening element 1730 may include a magnetically non-conductive metal to provide structural strength.

As shown in fig. 5B, the stiffening element 1730 at least partially overlaps the position sensing element 1710, the sense magnetic element 1720 at least partially exposed to the stiffening element 1730, the fifth segment 1615 at least partially overlaps the position sensing element 1710, the sense magnetic element 1720, the stiffening element 1730, and the flexible connection 1643 at least partially overlaps the base 1130, as viewed in a fourth direction perpendicular to the fifth segment 1615 (parallel to the normal of the fifth segment 1615). The fourth direction is perpendicular to the first direction. Further, the sensing magnetic element 1720 has a width W1, the position sensing element 1710 has a width W2, the stiffening element 1730 has a width W3, and the fifth segment 1615 has a width W4, and the width W4> width W3> width W1> width W2. In some embodiments, the circuit assembly 1600 at least partially overlaps the second and third magnetic conductive elements 1332 and 1333, and the second and third magnetic conductive elements 1332 and 1333 do not overlap the sensing assembly 1700, as viewed from the fourth direction, to achieve miniaturization.

Fig. 5C is a schematic diagram of a position sensing element 1710, sensing magnetic element 1720. In some embodiments, the sensing magnetic element 1710 may include a plurality of first sensing magnetic units 1711 and a plurality of second sensing magnetic units 1712, which are alternately arranged in a first direction, and the magnetic poles of the first sensing magnetic units 1711 and the second sensing magnetic units 1712 are opposite. Thereby, when the relative motion in the Z direction occurs between the position sensing element 1710 and the sensing magnetic element 1720, the position sensing element 1710 can sense the magnetic field change caused by the first sensing magnetic unit 1711 and the second sensing magnetic unit 1712 of the sensing magnetic element 1720, and thus the position of the movable portion 1200 relative to the fixed portion 1100 can be obtained.

In some embodiments, as shown in fig. 4A, the optical element driving mechanism 1000 may further include a storage unit 1681 and a processing unit 1682 disposed on the fixing portion 1100 or the circuit assembly 1600. In some embodiments, the storage unit 1681 can include, for example, a storage device such as a memory (e.g., dynamic random access memory (dynamic random access memory, DRAM) device, static random access memory (static random access memory, SRAM) device, high bandwidth memory (high bandwidth memory, HBM) device, etc.). In some embodiments, the processing unit 1682 may include, for example, a processing unit such as a logic device (e.g., a central processing unit (central processing units, CPUs), a graphics processing unit (graphics processing units, GPUs), a system-on-chip (SoCs), an application processor (application processors, APs), a microcontroller, an application-specific integrated circuit (ASIC) device, etc.

In some embodiments, the processing unit 1682 may be configured to determine the position of the movable portion 1200 relative to the fixed portion 110 based on the calibration information stored by the storage unit 1681. In some embodiments, since the components of the optical element driving mechanism 1000 may have tolerances in manufacturing, calibration information of the optical element driving mechanism 1000 may be obtained through the following steps. First, the movable portion 1200 is moved from the initial position to the final position, for example, by the entire movable stroke in the Z direction. Next, the magnetic field of the magnetic element 1720 is sensed by the position sensing element 1710 to obtain first position information including magnetic field values at different positions. Then, the first position information is analyzed to obtain calibration information.

In some embodiments, analyzing the first location information may include differentiating the first location information to obtain the second location information. Next, the number of the sensing magnetic elements passing through the first sensing magnetic unit 1711 and the second sensing magnetic unit 1712 is determined based on the number of times of positive-negative value transition of the second position information, and position section information is obtained based on the number. Then, according to the position interval information and the magnetic field of the sensing magnetic element sensed by the position sensing element, the detailed position of the movable portion relative to the fixed portion is determined, for example, if the positive and negative values are changed once, the relative distance between the movement of the sensing magnetic element 1720 and the movement of the position sensing element 1710 can be determined by the first sensing magnetic unit 1711 and the second sensing magnetic unit 1712. Finally, the calibration information can be obtained by the detailed position of the movable portion 1200 with respect to the fixed portion 1100, the position interval information, and the magnetic field.

Fig. 6A is a schematic diagram of the movable portion 1200 and the driving coil 1320, fig. 6B is a plan view of the movable portion 1200 and the driving coil 1320, and fig. 6C is a side view of the movable portion 1200 and the driving coil 1320. In some embodiments, as shown in fig. 6A to 6C, the movable part 1200 may mainly include a main body 1210, a first pressing part 1221, a second pressing part 1222, a third pressing part 1223, a fourth pressing part 1224, a first upper stopper 1231, a second upper stopper 1232, a third upper stopper 1233, a fourth upper stopper 1234, a fifth upper stopper 1235, a sixth upper stopper 1236, a first side stopper 1241, a second side stopper 1242, a third side stopper 1243, and a fourth side stopper 1244.

In some embodiments, the first, second, third, fourth, first, second, third, and fourth pressure portions 1221, 1222, 1223, 1224, 1231, 1232, 1233, 1234, 1235, 1236 may extend from the body 1210 in a first direction, and as shown in fig. 1C, 1D, the first, second, third, and fourth pressure portions 1221, 1222, 1223, 1224 are exposed to the housing 1110 when viewed in the first or second direction. The first, second, third, and fourth holding portions 1221, 1222, 1223, 1224 are arranged counterclockwise about the main axis 1900 as viewed in the first direction. In some embodiments, the material of the first, second, third, and fourth pressure portions 1221, 1222, 1223, 1224 comprises a flexible material (e.g., plastic).

In some embodiments, the first upper stop 1231 abuts the first hold-down 1221, the second upper stop 1232, the third upper stop 1233 abuts the second hold-down 1222, the fourth upper stop 1234 abuts the third hold-down 1223, and the fifth upper stop 1235, the sixth upper stop 1236 abut the fourth hold-down 1224. In some embodiments, the wire 1270 passes through the first and third pressing portions 1221 and 1232, and the first and fourth upper stoppers 1231 and 1234 are located on the same side of the wire 1270 as viewed in the first direction. In some embodiments, the first, second, third, fourth, fifth, and sixth upper stoppers 1231, 1232, 1233, 1234, 1235, 1236 are arranged counterclockwise about the main axis 1900 as viewed from the first direction. In some embodiments, the first, second, third, fourth, fifth, sixth upper stops 1231, 1232, 1233, 1234, 1235, 1236 may at least partially overlap the housing 1110 and not be exposed to the housing 1110.

That is, when the movable part 1200 moves in the Z direction, the first, second, third, fourth, fifth, and sixth upper stoppers 1231, 1232, 1233, 1234, 1235, 1236 may be used to limit the movable range of the movable part 1200, and the first, second, third, and fourth pressing parts 1221, 1222, 1223, 1224 may protrude from the housing 1110 to allow an external driving assembly to press the movable part 1200, thereby controlling the position of the movable part 1200 (described later).

In some embodiments, the movable portion 1200 may further include a first opening 1251, a second opening 1252, and the optical element driving mechanism 1000 may further include a first positioning magnetic element 1261, a second positioning magnetic element 1262 disposed in the first opening 1251, the second opening 1252, respectively. The first positioning magnetic element 1261, the second positioning magnetic element 1262 may be, for example, magnets and may be adjacent to the first guide bar 1160, the second guide bar 1170, respectively. Because the first guide bar 1160 and the second guide bar 1170 have magnetically conductive materials, the first positioning magnetic element 1261 and the second positioning magnetic element 1262 can generate magnetic force with the first guide bar 1160 and the second guide bar 1170, so that after the movable portion 1200 is moved to a specific position by using the driving assembly 1300, the position of the movable portion 1200 is fixed, and no power is always provided to the driving assembly 1300 to fix the position of the movable portion 1200, so that the energy is saved.

The first, second, third, and fourth side stoppers 1241, 1242, 1243, 1244 may be provided on the body 1210 and extend toward the X or Y direction. The first driving coil 1321, the second driving coil 1322, the third driving coil 1323, and the fourth driving coil 1324 may be disposed on the first side stopper 1241, the second side stopper 1242, the third side stopper 1243, and the fourth side stopper 1244, respectively, and the distances of the first side stopper 1241, the second side stopper 1242, the third side stopper 1243, and the fourth side stopper 1244 from the housing 1110 may be smaller than the distances of the first driving coil 1321, the second driving coil 1322, the third driving coil 1323, and the fourth driving coil 1324 from the housing 1110, so as to avoid the first driving coil 1321, the second driving coil 1322, the third driving coil 1323, and the fourth driving coil 1324 from directly colliding with the housing 1110.

In some embodiments, as shown in fig. 2A and 6B, the movable portion 1200 may include a movable portion top surface 1201 and the optical element 1800 may include an optical element surface 1801 facing in the same direction (e.g., toward the +z direction). Furthermore, in some embodiments, a dust catching element (not shown), such as dust catching glue, may be provided on the movable portion top surface 1201 or the optical element surface 1801 to catch debris that may be generated during operation of the optical element driving mechanism 1000 to avoid interfering with the photosensitive effect of the optical element driving mechanism 1000.

Fig. 7A is a schematic view of a first resilient element 1400. As shown in fig. 2A and 7A, the first elastic element 1400 may include a first elastic unit 1401, a second elastic unit 1402, a third elastic unit 1403, a fourth elastic unit 1404, a fifth elastic unit 1405, and a sixth elastic unit 1406. The first elastic unit 1401 may be disposed on the first side 1151, the second elastic unit 1402, the third elastic unit 1403 may be disposed on the second side 1152, the fourth elastic unit 1404, the fifth elastic unit 1405 may be disposed on the third side 1153, and the sixth elastic unit 1406 may be disposed on the fourth side 1154. The first line segment 1461 is symmetrical to the first line segment 1461 by the main shaft 1900, the first elastic unit 1401 and the sixth elastic unit 1406 are symmetrical to the first line segment 1461, the second elastic unit 1402 and the fifth elastic unit 1405 are symmetrical to the first line segment 1461, and the third elastic unit 1403 and the fourth elastic unit 1404 are symmetrical to the first line segment 1461 when viewed along the main shaft 1900. That is, the first wire segment 1461 may be a symmetry axis of the first elastic element 1400, and the first wire segment 1461 does not pass through the first guide bar 1160 and the second guide bar 1170.

In some embodiments, the second line segment 1462 passes through the first guide bar 1160, the second guide bar 1170, and the first line segment 1461 and the second line segment 1462 are perpendicular to each other. In some embodiments, the first elastic unit 1401, the sixth elastic unit 1406 are located on one side of the second line segment 1462, and the second elastic unit 1402, the third elastic unit 1403, the fourth elastic unit 1404, the fifth elastic unit 1405 are located on the other side of the second line segment 1462, as viewed along the main axis 1900. In addition, the second line segment 1462 does not pass through the first elastic element 1400.

The first elastic element 1400 can be electrically connected to the circuits in the fixed portion 1100 and the movable portion 1200. For example, the first elastic unit 1401 may include a first movable portion connecting portion 1411, a first fixed portion connecting portion 1421, and a first string 1431. The second elastic unit 1402 may include a second movable portion connecting portion 1412, a second fixed portion connecting portion 1422, and a second string 1432. The third elastic unit 1403 may include a third movable portion connecting portion 1413, a third fixed portion connecting portion 1423, and a third chord line 1433. The fourth elastic unit 1404 may include a fourth movable portion connecting portion 1414, a fourth fixed portion connecting portion 1424, and a fourth string 1434. The fifth elastic unit 1405 may include a fifth movable portion connecting portion 1415, a fifth fixed portion connecting portion 1425, and a fifth string 1435. The sixth elastic unit 1406 may include a sixth movable portion connection 1416, a sixth fixed portion connection 1426, and a sixth string 1436.

In some embodiments, the first movable portion connecting portion 1411, the second movable portion connecting portion 1412, the third movable portion connecting portion 1413, the fourth movable portion connecting portion 1414, the fifth movable portion connecting portion 1415, and the sixth movable portion connecting portion 1416 may be disposed on the movable portion 1200, and the first fixed portion connecting portion 1421, the second fixed portion connecting portion 1422, the third fixed portion connecting portion 1423, the fourth fixed portion connecting portion 1424, the fifth fixed portion connecting portion 1425, and the sixth fixed portion connecting portion 1426 may be disposed on the fixed portion 1100. Thereby, the circuits in the fixed portion 1100 and the movable portion 1200 can be electrically connected.

In some embodiments, the first string 1431 connects the first movable portion connection 1411 and the first fixed portion connection 1421. The second string 1432 connects the second movable portion connecting portion 1412 and the second fixed portion connecting portion 1422. The third chord line 1433 connects the third movable portion connecting portion 1413 and the third fixed portion connecting portion 1423. The fourth string 1434 connects the fourth movable portion connection 1414 and the fourth fixed portion connection 1424. The fifth string 1435 connects the fifth movable portion connecting portion 1415 and the fifth fixed portion connecting portion 1425. The sixth string 1436 connects the sixth movable portion connecting portion 1416 and the sixth fixed portion connecting portion 1426.

In some embodiments, the first elastic unit 1401, the sixth elastic unit 1406 may have a symmetrical structure, and the second elastic unit 1402, the third elastic unit 1403, the fourth elastic unit 1404, the fifth elastic unit 1405 may have a similar structure. For example, the distance between the first movable portion connecting portion 1411 and the first fixed portion connecting portion 1421 or the distance between the sixth movable portion connecting portion 1416 and the sixth fixed portion connecting portion 1426 may be greater than the distance between the second movable portion connecting portion 1412 and the second fixed portion connecting portion 1422, the distance between the third movable portion connecting portion 1413 and the third fixed portion connecting portion 1423, the distance between the fourth movable portion connecting portion 1414 and the fourth fixed portion connecting portion 1424, or the distance between the fifth movable portion connecting portion 1415 and the fifth fixed portion connecting portion 1425.

In some embodiments, since the second elastic unit 1402, the third elastic unit 1403, the fourth elastic unit 1404, and the fifth elastic unit 1405 may have similar structures, details of the structures are further described herein taking the second elastic unit 1402 as an example. Fig. 7B is an enlarged view of the second elastic unit 1402. The second string 1432 of the second elastic unit 1402 may further include a second string first portion 1451, a second string second portion 1452, a second string turn 1453. The second string first section 1451 may be connected to the second movable portion connecting portion 1412, the second string second section 1452 may be connected to the second fixed portion connecting portion 1422, and the second string turning portion 1453 may be connected to the second string first section 1451 and the second string second section 1452.

It should be noted that in some embodiments, the second string first section 1451 and the second string second section 1452 may extend in different directions, with the angle θ between the second string first section 1451 and the second string second section 1452 being an acute angle. In some embodiments, the included angle θ may be less than 45 degrees. In some embodiments, the distance D5 between the second movable portion connecting portion 1412 and the second fixed portion connecting portion 1422 is less than the length L5 of the second string first portion 1451 and the length L6 of the second string second portion 1452. In other words, the second elastic unit 1402 is not designed to bear load, but is used to conduct electricity, thereby reducing the size of the second elastic unit 1402 (and other similar elastic units) to achieve miniaturization.

In some embodiments, the first movable portion connecting portion 1411, the second fixed portion connecting portion 1422, and the second movable portion connecting portion 1412 may be disposed at the fifth side 1155, the third fixed portion connecting portion 1423, the third movable portion connecting portion 1413, the fourth fixed portion connecting portion 1424, and the fourth movable portion connecting portion 1414 may be disposed at the sixth side 1156, the fifth fixed portion connecting portion 1425, the fifth movable portion connecting portion 1415, and the sixth movable portion connecting portion 1416 may be disposed at the seventh side 1157, and the first fixed portion connecting portion 1421 and the sixth fixed portion connecting portion 1426 may be disposed at the eighth side 1158.

Fig. 8 is a schematic diagram of some elements of the optical element driving mechanism 1000, in which a first elastic element 1400, a circuit assembly 1600, a first conductive assembly 1650 embedded in the movable portion 1200, and a second conductive assembly 1660 embedded in the base 1130 are mainly shown. In some embodiments, first conductive element 1650, second conductive element 1660 may be electrically isolated from each other.

In some embodiments, the first conductive element 1650 may include a first conductive portion 1651, a second conductive portion 1652, a third conductive portion 1653, and a fourth conductive portion 1654, where the first conductive portion 1651, the second conductive portion 1652, and the third conductive portion 1653, and the fourth conductive portion 1654 are located at different heights in the first direction. The circuit assembly 1600 may be electrically connected to the first driving coil 1321 and the second driving coil 1322 through the third elastic unit 1403 and the first conductive portion 1651, and the circuit assembly 1600 may be electrically connected to the third driving coil 1323 and the fourth driving coil 1324 through the fourth elastic unit 1404 and the second conductive portion 1652, so as to allow the first driving coil 1321 to be connected in series with the second driving coil 1322, and the third driving coil 1323 to be connected in series with the fourth driving coil 1324. In some embodiments, the first and second drive coils 1321, 1322 are connected in parallel with the third and fourth drive coils 1323, 1324 by third and fourth conductive portions 1653, 1654.

In some embodiments, additional optical modules (not shown), such as optical modules, for example, diaphragms, may be provided on the optical element drive mechanism 1000. In addition, the optical module can be electrically connected to the second conductive element 1660 through the first elastic unit 1401, the second elastic unit 1402, the fifth elastic unit 1405, and the sixth elastic unit 1406 of the first elastic element 1400, so that the optical module can be controlled. In addition, the third elastic unit 1403, the fourth elastic unit 1404, the first elastic unit 1401, the second elastic unit 1402, the fifth elastic unit 1405, and the sixth elastic unit 1406 are electrically insulated from each other, so as to avoid interference between the signals controlling the optical element driving mechanism 1000 and the signals controlling the optical module.

In some embodiments, as shown in fig. 2A and 8, the second conductive element 1660 may include a first outlet 1661, a second outlet 1662, a third outlet 1663, and a fourth outlet 1664, arranged in sequence on the first side 1151. The first wire outlet 1661, the second wire outlet 1662, the third wire outlet 1663, and the fourth wire outlet 1664 are electrically connected to the first elastic unit 1401, the sixth elastic unit 1406, the fifth elastic unit 1405, and the second elastic unit 1402 in order to separately control each driving coil.

In some embodiments, the optical element driving mechanism 1000 may further include an adhesive element 1470 (e.g. an adhesive element that is conductive such as solder ball, silver paste, etc.), and the adhesive element is disposed on the first fixing portion connecting portion 1421, the second fixing portion connecting portion 1422, the third movable portion connecting portion 1413, the third fixing portion connecting portion 1423, the fourth movable portion connecting portion 1414, the fourth fixing portion connecting portion 1424, the fifth fixing portion connecting portion 1425, and the sixth fixing portion connecting portion 1426 to electrically connect the first elastic element 1400, the first conductive component 1650, and the second conductive component 1660.

Fig. 9A is a schematic diagram of some elements of the optical element driving mechanism 1000, in which the base 1130, the second elastic element 1500 are mainly shown. Fig. 9B is an enlarged schematic view of some elements of the optical element driving mechanism 1000. In some embodiments, the second resilient element 1500 may generally include a first base connection 1510, a first string portion 1520, a second base connection 1530, a second string portion 1540, and a contact portion 1550. The first base connection 1510, the second base connection 1530 may be used to connect the base 1130, the first string portion 1520 may be used to connect the first base connection 1510 and the contact portion 1550, and the second string portion 1540 may be used to connect the second base connection 1530 and the contact portion 1550. In some embodiments, the first base connection 1510 and the second base connection 1530 may be located on both sides of the base 1130, as viewed in the first direction, and the first string 1520 and the second string 1540 may also be located on both sides of the base 1130. In addition, the first guide bar 1160, the second guide bar 1170, the first base connection 1510, and the second base connection 1520 may be located at different sides of the base 1130 to further utilize the space of the optical element driving mechanism 1000.

In some embodiments, the contact portion 1550 may be disposed on the first side 1151, the second side 1152, the third side 1153, the fourth side 1154, while the first base connection portion 1510, the first chord portion 1520 may be disposed on the sixth side 1156, and the second base connection portion 1530, the second chord portion 1540 may be disposed on the eighth side 1158. In other words, the first chassis connection portion 1510, the second chassis connection portion 1530, and the contact portion 1550 may be located on different sides of the chassis 1130. It should be noted that the first side 1151, the second side 1152, the third side 1153, the fourth side 1154, the fifth side 1155, and the seventh side 1157 are not in direct contact with the second elastic element 1500, but are spaced apart from the second elastic element 1500 in the first direction (as shown in fig. 1E and 1F).

In some embodiments, the base 1130 may further include a body 1560, a first post 1561, a second post 1562, a third post 1563, a fourth post 1564, a first coupling element 1571, a second coupling element 1572, a third coupling element 1573, a fourth coupling element 1574, may protrude from the body 1560 in a first direction. The first string portion 1520 may be positioned between the first and second lugs 1561, 1562, and the second string portion 1540 may be positioned between the third and fourth lugs 1563, 1564 to protect the first and second string portions 1520, 1540. The first and second connecting elements 1571 and 1572 may respectively pass through and over the first base connecting portion 1510, and the third and fourth connecting elements 1573 and 1574 may respectively pass through the second base connecting portion 1530 to fix the relative positions between the second resilient element 1500 and the base 1130.

In some embodiments, a wire 1280 may be threaded through the first string portion 1520, the second string portion 1540, the main shaft 1900, with the first and second connecting elements 1571, 1572 being located on either side of the wire 1280, and the third and fourth connecting elements 1573, 1574 also being located on either side of the wire 1280. In some embodiments, the first chassis connection 1510 may include a first opening 1511, the second chassis connection 1530 may include a second opening 1531, and the chassis 1130 is at least partially exposed from the first opening 1511, the second opening 1531, as viewed in the first direction. The first opening 1511 may be located between the first and second connection elements 1571, 1572, while the second opening 1531 may be located between the third and fourth connection elements 1573, 1574, and the wire 1280 may pass through the first and second openings 1511, 1531. In some embodiments, additional adhesive elements (not shown) may be provided at the first and second openings 1511, 1531 to directly contact the base 1130 and the second elastic element 1500 to further fix the relative positions of the base 1130 and the second elastic element 1500.

In some embodiments, the thickness of the first elastic element 1400 and the thickness of the second elastic element 1500 may be different from each other, e.g., the thickness of the first elastic element 1400 may be less than the thickness of the second elastic element 1500. In some embodiments, the ratio of the thickness 1400 of the first elastic element to the thickness of the second elastic element 1500 may be between about 0.5 to about 0.8 to allow the second elastic element 1500 to have a stronger mechanical strength.

Fig. 9C is an enlarged schematic view of a portion of the base 1130. As shown in fig. 1F and 9C, the base 1130 may include a first guide bar arrangement portion 1131 and a second guide bar arrangement portion 1134, the first guide bar arrangement portion 1131 may include a first guide bar arrangement groove 1132 and a first guide bar arrangement surface 1133, and the second guide bar arrangement portion 1134 may include a second guide bar arrangement groove 1135. In some embodiments, the first guide bar arrangement surface 1133 is disposed in the first guide bar arrangement groove 1132, and the first guide bar 1160 is disposed in and protrudes from the first guide bar arrangement groove 1132 and directly contacts the first guide bar arrangement surface 1133. The second guide 1170 may be disposed in the second guide placement groove 1135 to fix the relative positions of the first guide 1160, the second guide 1170, and the base 1130. In some embodiments, the first guide bar arrangement groove 1132 and the second guide bar arrangement groove 1135 may also include an open structure.

Fig. 10A and 10B are schematic diagrams of the optical element driving mechanism 1000 being switched between a first state (fig. 10A) and a second state (fig. 10B) by an external driving component 1920. As shown in fig. 10A, in the first state, the movable portion 1200 directly contacts the second elastic element 1500 and is spaced apart from the fixed portion 1100. At this time, the movable portion 1200 is located at the first position. It should be noted that the first driving magnetic unit 1351 of the driving magnetic element 1310 may contact the second driving magnetic unit 1352 at the interface 1350, i.e., the interface 1350 is located between the first driving magnetic unit 1351 and the second driving magnetic unit 1352, and in the first state, the driving coil 1320 at least partially overlaps the interface 1350 when viewed from the second direction.

In some embodiments, the pressing portion 1220 (e.g., the first pressing portion 1221, the second pressing portion 1222, the third pressing portion 1223, the fourth pressing portion 1224) of the movable portion 1200 may be at least partially exposed from the base 1130, and the external driving assembly 1920 may directly contact the pressing portion 1220 to apply a downward first force to the movable portion 1200 through the pressing portion 1220. Thereby, the movable portion 1200 may directly contact the contact portion of the second elastic element 1500, such that the first base connection portion 1510 (and the second base connection portion 1530) and the contact portion 1550 are located on different planes. At this time, the second elastic element 1500 is deformed, so that an upward second force is applied to the movable portion 1200 through the contact portion 1550, and the first force is opposite to the second force, so as to fix the movable portion 1200 in the first position.

Next, as shown in fig. 10B, the external driving component 1920 is separated from the pressing portion 1220, so that the movable portion 1200 only receives the second force provided by the second elastic element 1500, and the movable portion 1200 moves upward (+z direction) to move the movable portion 1200 along the main shaft 1900 to reach the second position. Next, an upward driving force is applied to the movable portion 1200 using the driving assembly 1300 to further drive the movable portion 1200 to the third position, which is referred to as a second state. The optical element driving mechanism 1000 can move in the second state to achieve the auto-focusing function. It should be noted that, in the second state, the first base connecting portion 1510 (and the second base connecting portion 1530) and the contact portion 1550 may be located on the same plane, that is, the movable portion 1200 and the second elastic element 1500 may be spaced apart from each other, so as to avoid the second elastic element 1500 from affecting the movement of the movable portion 1200. It should be noted that, when the optical element driving mechanism 1000 is operated later, the movable portion 1200 and the second elastic element 1500 may be separated from each other, and the pressing portion 1220 is at least partially exposed from the base 1130.

Then, when the movable portion 1200 is to be retracted into the fixed portion 1100, since the pressing portion 1220 is at least partially exposed from the base 1130, the external driving component 1920 can apply the first force to the pressing portion 1220 of the movable portion 1200 again to drive the movable portion 1200 to the first position so as to return to the state of fig. 10A, and at this time, most of the movable portion 1200 can be accommodated in the fixed portion 1100 to reduce the size of the optical element driving mechanism 1000 in the Z direction, thereby achieving miniaturization and protecting the movable portion 1200.

In summary, the present disclosure provides an optical element driving mechanism including a movable portion, a fixed portion, and a driving assembly. The movable part is used for connecting the optical element. The movable part can move relative to the fixed part. The driving component is used for driving the movable part to move relative to the fixed part. Thereby, the movable part can be allowed to be moved with the external driving assembly, so that the optical element having a large size can be pushed, and miniaturization can also be achieved.

The special relative position and the size relation of each element disclosed in the utility model not only can enable the driving mechanism to achieve the thinning and overall miniaturization of a specific direction, but also can enable the system to further improve the optical quality (such as shooting quality or depth sensing precision and the like) by matching with different optical modules, and further can utilize each optical module to achieve a multiple vibration-proof system so as to greatly improve the effect of preventing hand vibration.

Although embodiments of the present invention and their advantages have been disclosed above, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the invention. Furthermore, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification, unless otherwise indicated herein, unless otherwise clearly indicated by the context of the present disclosure, all the processes, machines, manufacture, compositions of matter, means, methods and steps described herein, for performing the same function or achieving the same result as the described embodiments may be practiced according to the present disclosure. Accordingly, the present invention includes within its scope the above-described processes, machines, manufacture, compositions of matter, means, methods, or steps. In addition, each claim constitutes a separate embodiment, and the scope of protection of the present invention also includes combinations of the individual claims and embodiments.

Claims (10)

1. An optical element driving mechanism, comprising:

a movable part for connecting an optical element;

a fixed part, the movable part can move relative to the fixed part;

A driving component for driving the movable part to move relative to the fixed part;

the first elastic element is connected with the movable part and the fixed part and is used for electrically connecting the optical element driving mechanism and an optical module; and

a second elastic element arranged on the fixing part;

wherein the first elastic element and the second elastic element are arranged at two sides of the movable part.

2. The optical element driving mechanism as claimed in claim 1, wherein:

the first elastic element and the second elastic element are arranged in a first direction;

the fixed part and the movable part are arranged along a main shaft;

the extending direction of the main shaft is parallel to the first direction;

the thickness of the first elastic element is different from the thickness of the second elastic element.

3. The optical element driving mechanism as claimed in claim 2, wherein:

the thickness of the first elastic element is smaller than that of the second elastic element;

the fixing part comprises a first side edge, a second side edge, a third side edge and a fourth side edge;

the driving component is arranged on the first side, the second side, the third side and the fourth side;

the first side edge is opposite to the third side edge;

The second side is opposite to the fourth side;

the fixing part comprises a shell and a base, the shell and the base are arranged along the main shaft, and the main shaft extends in the first direction;

the first elastic element comprises, viewed along the main axis:

the first elastic unit is arranged on the first side edge;

the second elastic unit is arranged on the second side edge;

a third elastic unit arranged on the second side;

a fourth elastic unit arranged on the third side;

a fifth elastic unit arranged on the third side; and

a sixth elastic unit disposed at the fourth side;

a first line segment passing through the spindle as viewed along the spindle;

the first elastic unit and the sixth elastic unit are symmetrical to the first line segment;

the second elastic unit and the fifth elastic unit are symmetrical to the first line segment;

the third elastic unit and the fourth elastic unit are symmetrical to the first line segment.

4. The optical element driving mechanism as claimed in claim 3, further comprising: the first guide rod is arranged on the fixed part; and

the second guide rod is arranged on the fixed part;

wherein:

the first guide rod and the second guide rod are positioned at two sides of the movable part;

A second line segment passes through the first guide rod and the second guide rod when being observed along the main shaft;

the first line segment and the second line segment are perpendicular to each other;

the first elastic unit and the sixth elastic unit are positioned at one side of the second line segment, and the second elastic unit, the third elastic unit, the fourth elastic unit and the fifth elastic unit are positioned at the other side of the second line segment;

the second line segment does not pass through the first elastic element.

5. The optical element driving mechanism as recited in claim 4, wherein:

the first elastic unit includes:

the first movable part connecting part is arranged on the movable part;

the first fixing part connecting part is arranged on the fixing part; and

a first string connected to the first movable portion and the first fixed portion; the second elastic unit includes:

the second movable part connecting part is arranged on the movable part;

the second fixing part connecting part is arranged on the fixing part; and

a second string connected to the second movable portion and the second fixed portion; the third elastic unit includes:

the third movable part connecting part is arranged on the movable part;

The third fixing part connecting part is arranged on the fixing part; and

a third string connected to the third movable portion and the third fixed portion; the fourth elastic unit includes:

a fourth movable part connecting part arranged on the movable part;

a fourth fixed part connecting part arranged on the fixed part; and

a fourth string connected to the fourth movable portion connecting portion and the fourth fixed portion connecting portion;

the fifth elastic unit includes:

a fifth movable part connecting part arranged on the movable part;

a fifth fixing part connecting part arranged on the fixing part; and

a fifth string connected to the fifth movable portion connecting portion and the fifth fixed portion connecting portion; the sixth elastic unit includes:

a sixth movable part connecting part arranged on the movable part;

a sixth fixing part connecting part arranged on the fixing part; and

a sixth string connected to the sixth movable portion and the sixth fixed portion; the distance between the first movable part connecting part and the first fixed part connecting part is larger than the distance between the second movable part connecting part and the second fixed part connecting part;

The distance between the first movable part connecting part and the first fixed part connecting part is larger than the distance between the third movable part connecting part and the third fixed part connecting part;

the distance between the sixth movable part connecting part and the sixth fixed part connecting part is larger than the distance between the fourth movable part connecting part and the fourth fixed part connecting part;

the distance between the sixth movable part connecting part and the sixth fixed part connecting part is larger than the distance between the fifth movable part connecting part and the fifth fixed part connecting part.

6. The optical element driving mechanism as recited in claim 5, wherein:

the second string includes:

a second string first portion connected to the second movable portion connecting portion;

a second string second portion connected to the second fixing portion connecting portion; and

a second string turning portion connecting the second string first portion and the second string second portion;

the first portion of the second string and the second portion of the second string extend in different directions, and an included angle between the first portion of the second string and the second portion of the second string is an acute angle;

the distance between the second movable part connecting part and the second fixed part connecting part is smaller than the length of the first part of the second string;

The distance between the second movable part connecting part and the second fixed part connecting part is smaller than the length of the second string wire second part.

7. The optical element driving mechanism as recited in claim 6, wherein:

the drive assembly includes:

a first driving magnetic element arranged on the first side;

a second driving magnetic element arranged on the second side;

a third driving magnetic element arranged on the third side;

a fourth driving magnetic element arranged on the fourth side;

the first driving coil is arranged on the movable part and corresponds to the first driving magnetic element;

the second driving coil is arranged on the movable part and corresponds to the second driving magnetic element;

a third driving coil arranged on the movable part and corresponding to the third driving magnetic element; and

a fourth driving coil disposed at the movable portion and corresponding to the fourth driving magnetic element;

the first driving coil is connected with the second driving coil in series;

the third driving coil is connected with the fourth driving coil in series;

the first driving coil and the second driving coil are connected in parallel with the third driving coil and the fourth driving coil.

8. The optical element driving mechanism as recited in claim 7, wherein:

The fixing part also comprises a fifth side edge, a sixth side edge, a seventh side edge and an eighth side edge;

the fifth side edge is positioned between the first side edge and the second side edge;

the sixth side is located between the second side and the third side;

the seventh side is located between the third side and the fourth side;

the eighth side is located between the fourth side and the first side;

the first movable part connecting part, the second fixed part connecting part and the second movable part connecting part are arranged on the fifth side edge;

the third fixed part connecting part, the third movable part connecting part, the fourth fixed part connecting part and the fourth movable part connecting part are arranged on the sixth side edge;

the fifth fixed part connecting part, the fifth movable part connecting part and the sixth movable part connecting part are arranged on the seventh side edge;

the first fixing part connecting part and the sixth fixing part connecting part are arranged on the eighth side edge;

the optical element driving mechanism further comprises an adhesive element, which is arranged on the first movable part connecting part, the first fixed part connecting part, the second movable part connecting part, the second fixed part connecting part, the third movable part connecting part, the third fixed part connecting part, the fourth movable part connecting part, the fourth fixed part connecting part, the fifth movable part connecting part, the fifth fixed part connecting part, the sixth movable part connecting part and the sixth fixed part connecting part.

9. The optical element driving mechanism as recited in claim 8, further comprising:

a circuit assembly surrounding the movable portion;

the first conductive component is embedded in the movable part and comprises a first conductive part, a second conductive part, a third conductive part and a fourth conductive part; and

a second conductive component embedded in the base;

wherein:

the circuit component is electrically connected with the first driving coil and the second driving coil through the third elastic unit and the first conductive part;

the circuit component is electrically connected with the third driving coil and the fourth driving coil through the fourth elastic unit and the second conductive part;

the first driving coil and the second driving coil are connected in parallel with the third driving coil and the fourth driving coil through the third conductive part and the fourth conductive part;

an optical module electrically connected to the second conductive component via the first elastic unit, the second elastic unit, the fifth elastic unit, and the sixth elastic unit;

the first conductive component and the second conductive component are electrically insulated from each other;

the third elastic unit, the fourth elastic unit, the first elastic unit, the second elastic unit, the fifth elastic unit and the sixth elastic unit are electrically insulated.

10. The optical element driving mechanism as recited in claim 9, wherein:

the second conductive component comprises a first wire outlet end, a second wire outlet end, a third wire outlet end and a fourth wire outlet end which are sequentially arranged at the first side edge;

the first wire outlet end is electrically connected with the first elastic unit;

the second wire outlet end is electrically connected with the sixth elastic unit;

the third wire outlet end is electrically connected with the fifth elastic unit;

the fourth wire outlet end is electrically connected with the second elastic unit;

in the first direction, the first conductive portion and the second conductive portion are at different heights from the third conductive portion and the fourth conductive portion.