Optical element driving mechanism

Abstract

An optical element driving mechanism comprises a fixed assembly, a movable assembly and a first driving assembly. The fixing assembly is connected to a first optical element. The movable assembly can move relative to the fixed assembly. The first driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The fixing assembly includes a first accommodating space configured to accommodate a second optical element.

Description

Technical Field

[0001] The utility model relates to an optical element driving mechanism, in particular to an optical element driving mechanism capable of carrying a heavier lens. Background Art

[0002] With the development of technology, many electronic devices (such as smart phones) now have the function of taking photos or recording videos. Through the camera module installed on the electronic device, the user can operate the electronic device to extract various photos.

[0003] The design of today's electronic devices is constantly developing towards the trend of miniaturization, so that various components or structures of camera modules must also be continuously reduced to achieve the purpose of miniaturization. Generally speaking, the driving mechanism in the camera module may have a lens carrier configured to carry a lens, and the driving mechanism may have the function of auto focusing or optical image stabilization. However, although the existing driving mechanism can achieve the aforementioned functions of taking pictures or recording videos, it still cannot meet all needs.

[0004] Therefore, how to design a camera module that can simultaneously perform autofocus and optical image stabilization and achieve miniaturization is a topic worth exploring and solving today. Utility Model Content

[0005] The purpose of the present disclosure is to provide an optical element driving mechanism to solve at least one of the above problems.

[0006] The present disclosure provides an optical element driving mechanism, comprising a fixed component, a movable component and a first driving component. The fixed component is connected to a first optical element. The movable component can move relative to the fixed component. The first driving component is configured to drive the movable component to move relative to the fixed component. The fixed component includes a first accommodating space configured to accommodate a second optical element.

[0007] According to some embodiments of the present disclosure, a fixed component includes a shell and a base. The shell is configured to be fixedly connected to the base. The shell and the base are arranged along a main axis. The fixed component also includes a first fixed portion fixed to the shell. The first fixed portion is configured to be connected to the first optical element. The movable component includes a first movable portion movably connected to the first fixed portion. The first fixed portion has a first side surface facing the first movable portion. The first movable portion has a first movable surface facing the first fixed portion. The shell has a side wall facing the first movable portion. When viewed along a second axial direction, the side wall, the first movable surface, the first side surface and the main axis are arranged in sequence along a first axial direction. The second axial direction, the first axial direction and the main axis are perpendicular to each other. When viewed along the main axis, the first movable portion surrounds the first fixed portion. When viewed along the main axis, the side wall surrounds the first movable portion and the first fixed portion.

[0008] According to some embodiments of the present disclosure, the fixing assembly also includes a second fixing portion fixed to the outer shell. The second fixing portion is arranged on the first fixing portion. The second fixing portion and the first fixing portion are arranged along the main axis. The second fixing portion has a third optical element. The second fixing portion has a second body and a plurality of second fixing structures. The plurality of second fixing structures extend from the second body along the first axial direction. Each of the plurality of second fixing structures has an external support portion and a downward pressure portion. The external support portion is connected between the second body and the downward pressure portion. When observed along the first axial direction, the external support portion overlaps with a top wall of the outer shell. When observed along the first axial direction, the downward pressure portion does not overlap with the top wall. When observed along the main axis, the downward pressure portion overlaps with the top wall. When observed along the main axis, the external support portion does not overlap with the top wall. When observed along the main axis, the external support portion has an arc-shaped structure.

[0009] According to some embodiments of the present disclosure, the first fixing portion has a first body and a first fixing structure. The first fixing structure is configured to be fixed to the shell. The first fixing structure has a plurality of abutting portions, which extend and protrude from the first body along the main axis. The plurality of abutting portions are configured to abut against a bottom surface of a top wall of the shell. The first fixing structure also has a plurality of buckle portions, which are respectively arranged on the plurality of abutting portions. Each of the plurality of buckle portions has a hook-shaped structure. The plurality of buckle portions are configured to abut against a top surface of the top wall. When viewed along the first axial direction, each buckle portion and the corresponding abutting portion are located on opposite sides of the top wall. Each of the plurality of abutting portions has a left section and a right section. When viewed along the main axis, the buckle portion is located between the left section and the right section.

[0010] According to some embodiments of the present disclosure, the optical element driving mechanism further includes an intermediate component. The movable component is movably connected to the fixed component through the intermediate component. The intermediate component includes a first elastic element configured to connect the first movable part and the first fixed part. The first elastic element has a first movable section, a first intermediate section and a first fixed section. The first intermediate section is connected between the first movable section and the first fixed section. The first movable section is fixedly connected to an upper surface of the first movable section. The first fixed section is fixedly connected to the first fixed section. The intermediate component includes a second elastic element configured to connect the first movable part and the first fixed part. The second elastic element has a second movable section, a second intermediate section and a second fixed section. The second intermediate section is connected between the second movable section and the second fixed section. The second movable section is fixedly connected to a first boss of the first movable part. The first boss protrudes from a lower surface of the first movable part. The second fixed section is fixedly connected to a second boss of the first fixed part. The second boss protrudes from a bottom surface of the first fixed part. When viewed along the first axial direction, the first elastic element and the second elastic element are not located between the side wall and the first active surface.

[0011] According to some embodiments of the present disclosure, the movable component further includes a second movable part configured to carry the second optical element. The intermediate component further includes an intermediate elastic element connected between the first movable section and the second movable part. The intermediate elastic element has a strip structure and extends along the main axis. The first driving component includes a first magnetic element and a second magnetic element. The first magnetic element is disposed on the first fixed part. The second magnetic element corresponds to the first magnetic element and is disposed on the first movable part. The first magnetic element is configured to induce a first driving force with the second magnetic element. The first driving force is configured to drive the first movable part and the second movable part to move along the main axis relative to the first fixed part. When the first movable part and the second movable part move along the main axis, the intermediate elastic element moves along the main axis at the same time, and the intermediate elastic element does not bend. The optical element driving mechanism also includes a second driving component configured to drive the second movable part to move relative to the first movable part and the first fixed part. The second driving component includes a third magnetic element disposed on the second movable part. The third magnetic element is configured to induce a second driving force with the second magnetic element. The second driving force is configured to drive the second movable part to move along the first axial direction and / or the second axial direction.

[0012] According to some embodiments of the present disclosure, the second movable part has a movable body and at least one cantilever. The at least one cantilever is connected between the movable body and the shell. The at least one cantilever has a first end, a plurality of bends and a second end. The bends are connected between the first end and the second end. When observed along the main axis, the movable body has a rectangular structure. When observed along the main axis, the rectangular structure has a side. When observed along the main axis, the first end extends from a center of the side of the rectangular structure. The second end is disposed in a connecting opening of the shell. The connecting opening is formed by a depression in the top surface of the shell.

[0013] According to some embodiments of the present disclosure, the optical element driving mechanism also includes a first circuit component, which is arranged in a receiving groove of the housing. The receiving groove is connected to the connecting opening. The fixing component also includes a second fixing portion, which is fixed to the housing. The second fixing portion is arranged on the first fixing portion. A second circuit component is arranged on the second fixing portion, and the second circuit component and the second end of the second movable portion are electrically connected to an external circuit through the first circuit component. The receiving groove has a first receiving portion and a second receiving portion. The first receiving portion is formed by a depression of the top surface of the top wall. The second receiving portion is formed by a depression of an outer side surface of the side wall. The first circuit component has a first section and a second section. The second section is connected to the first section. The first section and the second section are respectively accommodated in the first receiving portion and the second receiving portion. When observed along the main axis, the first section has a U-shaped structure, surrounding a portion of the second fixing portion. The second end of at least one cantilever is fixedly connected to the first section. When observed along the main axis, the second section has an L-shaped structure.

[0014] According to some embodiments of the present disclosure, when observed along the main axis, the accommodating groove does not overlap with the first end. When observed along the first axial direction, the first end is located between the side wall and the accommodating groove. When observed along the second axial direction, the first end does not overlap with the accommodating groove. The second circuit component has a first electrical connection end and a second electrical connection end. When observed along the first axial direction, the first electrical connection end and the second electrical connection end are located on opposite sides of the second fixed portion. A plurality of first electrical contacts and a plurality of second electrical contacts are respectively provided on the first electrical connection end and the second electrical connection end, configured to be connected to the first circuit component. When observed along the first axial direction, the first section is located in the accommodating groove, and the top surface does not overlap with the first section of the first circuit component in the second axial direction. When observed along the first axial direction, on the main axis, the first section is closer to a light incident end of the optical element driving mechanism than the second optical element. A plurality of electrical contacts are formed on the second section, configured to be electrically connected to an external circuit. When viewed along the first axial direction, on the main axis, the electrical contacts are closer to a light emitting end of the optical element driving mechanism than the first section.

[0015] According to some embodiments of the present disclosure, the first fixing portion is integrally formed with the housing. The optical element driving mechanism further includes a plurality of circuit components embedded in the housing. The movable assembly further includes a second movable portion configured to carry a second optical element. The second optical element is electrically connected to the circuit components via at least one cantilever of the second movable portion. The circuit components have a plurality of electrical ends configured to be electrically connected to an external circuit.

[0016] The present disclosure provides an optical element driving mechanism, including a movable component, a fixed component, and two driving components. The fixed component has a first fixed portion configured to carry a first optical element. The movable component is movably connected to the first fixed portion and is configured to carry a second optical element, and the driving components are configured to drive the movable component to move relative to the fixed component. The fixed component includes a housing, and the movable component is suspended in the housing and surrounds the first fixed portion. Based on such a design, compared with the known driving mechanism, the present disclosure can carry a first optical element (lens) of greater weight, and more effectively reduce the weight of the movable portion and the driving component, thereby achieving the purpose of lightweighting.

[0017] In some embodiments, a receiving groove may be formed on the top surface of the housing, configured to receive a first circuit component, and the second movable portion of the movable component may be electrically connected to an external circuit through the first circuit component. The first circuit component and the second movable portion may be flexible circuit boards. In addition, a second circuit component may be disposed on the second fixed portion of the fixed component, and may also be electrically connected to an external circuit through the first circuit component.

[0018] When the first circuit assembly is disposed in the receiving groove, the first circuit assembly will not exceed the top surface of the housing, thereby achieving the purpose of miniaturization. In addition, the location of the receiving groove also avoids the first end of the cantilever of the second movable part, so when the second movable part moves, the first end will not hit the bottom surface of the housing, thereby avoiding the problem of damage to the cantilever of the second movable part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of an optical element driving mechanism according to an embodiment of the present disclosure.

[0020] Figure 2 Detailed description of the invention The figure is an exploded view of an optical element driving mechanism according to an embodiment of the present invention.

[0021] Figure 3 The optical element driving mechanism according to one embodiment of the present disclosure is Figure 1 Section view of line segment AA.

[0022] Figure 4It is a three-dimensional diagram of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0023] Figure 5 It is a stereoscopic diagram of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure at another viewing angle.

[0024] Figure 6 The optical element driving mechanism according to one embodiment of the present disclosure is Figure 1 Three-dimensional cross-section diagram of line segment BB in .

[0025] Figure 7 4 is a top view of an optical element driving mechanism according to an embodiment of the present disclosure.

[0026] Figure 8 The optical element driving mechanism according to one embodiment of the present disclosure is Figure 1 Three-dimensional cross-section diagram of line segment CC in .

[0027] Fig. 9 The optical element driving mechanism according to one embodiment of the present disclosure is Figure 1 Cross-section of line segment DD in .

[0028] Fig.10 It is a stereoscopic diagram of an optical element driving mechanism according to another embodiment of the present disclosure.

[0029] The reference numerals are as follows:

[0030] 100: Optical element driving mechanism

[0031] 101: Second fixing part

[0032] 101E: Third optical element

[0033] 1010: Second Body

[0034] 1011: Second fixed structure

[0035] 1012: External support

[0036] 1014: Downward pressure part

[0037] 102: Shell

[0038] 1021: Shell opening

[0039] 1023: Accommodation space

[0040] 1025: Accommodating groove

[0041] 1026: first accommodation portion

[0042] 1027: Second accommodating portion

[0043] 102H: Connecting opening

[0044] 104: First Activity Department

[0045] 1041: Groove

[0046] 1043: Central opening

[0047] 1045: Upper surface

[0048] 1046: Lower surface

[0049] 1047: First boss

[0050] 104S1: First active surface

[0051] 104S2: Second active surface

[0052] 105: Intermediary elastic element

[0053] 106: first elastic element

[0054] 1061: First activity section

[0055] 1062: First fixed section

[0056] 1063: First middle section

[0057] 108: first fixing part

[0058] 1080:First body

[0059] 1081: First fixed structure

[0060] 1082: Contact part

[0061] 1084: Buckle part

[0062] 1085: Left segment

[0063] 1086: right segment

[0064] 108S1: first side surface

[0065] 108P: Second boss

[0066] 108T:Through hole

[0067] 110: second elastic element

[0068] 1101: Second activity section

[0069] 1102: Second fixed section

[0070] 1103: Second middle section

[0071] 112: Base

[0072] 114: Second Activity Department

[0073] 1140:Activity

[0074] 1141, 1142: Cantilever

[0075] 1143: first end

[0076] 1144: bending part

[0077] 1145: Second end

[0078] 114C: Center

[0079] 114S: Side

[0080] 120: first circuit component

[0081] 121: The first section

[0082] 122: The second section

[0083] 1221: Electrical contact

[0084] 130: Second circuit component

[0085] 131: first electrical connection end

[0086] 1311: first electrical contact

[0087] 132: second electrical connection terminal

[0088] 1321: Second electrical contact

[0089] 150: Circuit components

[0090] 152: Electrical end

[0091] AX1: First axis

[0092] AX2: Second axis

[0093] BWS1: bottom surface

[0094] DA1: First drive assembly

[0095] DA2: Second drive assembly

[0096] FA:Fixed components

[0097] LE1: Light incident end

[0098] LE2: Light emitting end

[0099] MA:Active Components

[0100] ME1: First magnetic element

[0101] ME2: Second magnetic element

[0102] ME3: The third magnetic element

[0103] MX:Spindle

[0104] O: Optical axis

[0105] OE1: First optical element

[0106] OE2: Second Optical Element

[0107] SW1: Side wall

[0108] SW11: Outer side

[0109] TA: Intermediate Component

[0110] TW: Top wall

[0111] TWS1: bottom surface

[0112] TWS2: Top

[0113] X: X-axis

[0114] Y: Y axis

[0115] Z: Z axis DETAILED DESCRIPTION

[0116] Many different implementation methods or examples are disclosed below to implement the different features of the provided subject matter. The following describes specific embodiments of the components and their arrangements to illustrate the present disclosure. Of course, these embodiments are only for illustration and should not be used to limit the scope of the present disclosure. For example, it is mentioned in the specification that the first characteristic component is formed on the second characteristic component, which may include an embodiment in which the first characteristic component and the second characteristic component are in direct contact, and may also include an embodiment in which there are other features between the first characteristic component and the second characteristic component. In other words, the first characteristic component and the second characteristic component are not in direct contact.

[0117] In addition, repeated numbers or marks may be used in different embodiments, and these repetitions are only for the purpose of simply and clearly describing the present disclosure, and do not represent a specific relationship between the different embodiments and / or structures discussed. In addition, in the present disclosure, forming, connecting to and / or coupling to another feature component on another feature component may include an embodiment in which the feature component is formed to be in direct contact, and may also include an embodiment in which an additional feature component inserted into the above-mentioned feature component can be formed, so that the above-mentioned feature component may not be in direct contact. In addition, space-related words may be used, such as "vertical", "above", "up", "below", "bottom" and similar words (such as "downwardly", "upwardly", etc.), these space-related words are for the convenience of describing the relationship between one (some) element or feature and another (some) element or feature in the diagram, and these space-related words are intended to cover different directions of the device including the feature.

[0118] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as commonly understood by those skilled in the art to which this disclosure belongs. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant technology and the present disclosure, and should not be interpreted in an idealized or overly formal manner unless specifically defined herein.

[0119] Furthermore, the ordinal numbers used in the specification and claims, such as "first", "second", etc., to modify the elements of the claims, do not themselves imply or represent any previous ordinal number of the requested element, nor do they represent the order of one requested element and another requested element, or the order in the manufacturing method. The use of multiple ordinals is only used to clearly distinguish a requested element with a certain name from another requested element with the same name.

[0120] In addition, in some embodiments of the present disclosure, terms such as "connection" and "interconnection" may refer to two structures being in direct contact with each other, or two structures not being in direct contact with each other, and other structures being disposed between the two structures, unless otherwise specified. Such terms may also include situations where both structures are movable or both structures are fixed.

[0121] Please refer to Figures 1 to 3 , Figure 1 FIG. 1 is a three-dimensional schematic diagram of an optical element driving mechanism 100 according to an embodiment of the present disclosure. Figure 2 is an exploded view of an optical element driving mechanism 100 according to an embodiment of the present disclosure, and Figure 3 The optical element driving mechanism 100 according to an embodiment of the present disclosure is Figure 1Cross-sectional view of the AA line segment in the figure. The optical element driving mechanism 100 may be an optical camera module configured to carry and drive at least one optical element. The optical element driving mechanism 100 may be installed in various electronic devices or portable electronic devices, such as a smart phone, so that the user can perform image extraction functions. In this embodiment, the optical element driving mechanism 100 may be a voice coil motor (VCM) with an autofocus (AF) function, but the present disclosure is not limited to this. In other embodiments, the optical element driving mechanism 100 may also have autofocus (AF) and optical image stabilization (OIS) functions.

[0122] In this embodiment, the optical element driving mechanism 100 may include a fixed component FA, a movable component MA, a first driving component DA1 and a second driving component DA2. The fixed component FA is configured to connect a first optical element OE1, the movable component MA is movably connected to the fixed component FA, and the movable component MA can move relative to the fixed component FA. The first driving component DA1 and the second driving component DA2 are configured to drive the movable component MA to move relative to the fixed component FA.

[0123] In this embodiment, if Figure 2 As shown, the fixing assembly FA includes a housing 102 and a base 112, the housing 102 is configured to be fixedly connected to the base 112, and the housing 102 and the base 112 are arranged along a main axis MX. The fixing assembly FA may also include a first fixing portion 108 fixed to the housing 102, and the first fixing portion 108 is configured to be connected to the aforementioned first optical element OE1.

[0124] Furthermore, the movable assembly MA may include a first movable portion 104 and a second movable portion 114. The first movable portion 104 is movably connected to the first fixed portion 108, and the second movable portion 114 is configured to carry a second optical element OE2. The first optical element OE1 is, for example, a lens, and the second optical element OE2 is, for example, an image sensor, but is not limited thereto.

[0125] like Figure 2 As shown, the housing 102 has a hollow structure and has a housing opening 1021 formed thereon, the center of which corresponds to the optical axis O of the first optical element OE1. The housing 102 may further have an accommodation space 1023 (or first accommodation space) for accommodating the movable assembly MA (including the second optical element OE2) and the driving assemblies.

[0126] like Figure 2As shown, the first fixing portion 108 has a hollow ring structure and a through hole 108T, wherein a corresponding locking screw structure (not shown) is disposed between the through hole 108T and the first optical element OE1, so that the first optical element OE1 can be locked in the through hole 108T.

[0127] Furthermore, the first driving assembly DA1 may include a first magnetic element ME1 (eg, a driving coil) and four second magnetic elements ME2. The first magnetic element ME1 may be disposed around the first fixed portion 108. The second magnetic elements ME2 correspond to the first magnetic element ME1 and are disposed on the first movable portion 104.

[0128] Specifically, the first movable portion 104 has a plurality of grooves 1041 and a central opening 1043. In this embodiment, the first movable portion 104 has four grooves 1041 for accommodating the four second magnetic elements ME2, but the number of the grooves 1041 and the second magnetic elements ME2 is not limited to this embodiment. In addition, the first fixed portion 108 and the first optical element OE1 are disposed in the central opening 1043.

[0129] Furthermore, the second driving assembly DA2 may include four third magnetic elements ME3 disposed on the second movable portion 114. The second movable portion 114 may be a flexible circuit board, and the four third magnetic elements ME3 may be induction coils electrically connected to the second movable portion 114. The number of the third magnetic elements ME3 is not limited to this embodiment.

[0130] The optical element driving mechanism 100 may further include an intermediate component TA, and the movable component MA is movably connected to the fixed component FA through the intermediate component TA. The intermediate component TA may include four first elastic elements 106 configured to connect the first movable part 104 and the first fixed part 108. Similarly, the intermediate component TA may further include four second elastic elements 110 configured to connect the first movable part 104 and the first fixed part 108.

[0131] The first elastic element 106 and the second elastic element 110 are, for example, elastic springs, but are not limited thereto. Based on the configuration of the intermediate assembly TA, the first movable portion 104 can be connected to the first fixed portion 108 through the first elastic element 106 and the second elastic element 110 and suspended in the accommodating space 1023 and surround the first fixed portion 108. Figure 1 and Figure 2 As shown, the first fixing portion 108 may have four first fixing structures 1081 fixed to the housing 102. The structures of these first fixing structures 1081 will be described in detail in the following paragraphs.

[0132] Furthermore, the intermediate assembly TA may further include four intermediate elastic elements 105, respectively connected between the four first elastic elements 106 and the second movable portion 114. Each intermediate elastic element 105 has a long strip structure, such as a columnar or linear structure, extending along the main axis MX, but not limited thereto.

[0133] Therefore, when the first magnetic element ME1 is energized, the four second magnetic elements ME2 will be induced by the first magnetic element ME1 to generate an electromagnetic driving force (first driving force) to drive the first movable part 104, the second movable part 114 and the second optical element OE2 to move along the main axis MX relative to the first fixed part 108, and the intermediate elastic element 105 also moves along the main axis MX relative to the first fixed part 108 at the same time to perform auto focusing.

[0134] One end of each intermediate elastic element 105 is connected to a first movable section 1061 of the corresponding first elastic element 106, and the other end of the intermediate elastic element 105 is connected to the second movable portion 114 and electrically connected to the second movable portion 114. Through the above-mentioned structural configuration, the second movable portion 114 and the second optical element OE2 can be displaced relative to the first fixed portion 108 and the first movable portion 104 along a direction parallel to the XY plane through the four flexible intermediate elastic elements 105.

[0135] That is to say, the second driving component DA2 is configured to drive the second movable portion 114 to move relative to the first movable portion 104 and the first fixed portion 108. Specifically, these third magnetic elements ME3 can be induction coils, and when the third magnetic element ME3 is energized and sensed by the corresponding second magnetic element ME2, another electromagnetic driving force (second driving force) is generated to drive the second movable portion 114 and the second optical element OE2 to move along a first axial direction AX1 and / or a second axial direction AX2. Therefore, when the optical element driving mechanism 100 is shaken, the second optical element OE2 can be driven by the aforementioned electromagnetic driving force to move on the XY plane to achieve the purpose of optical image stabilization.

[0136] It is worth noting that when the second movable portion 114 moves along the first axis AX1 and / or the second axis AX2, the intermediate elastic element 105 will bend, but when the first movable portion 104, the second movable portion 114 and the intermediate elastic element 105 move together along the main axis MX, the intermediate elastic element 105 will not bend.

[0137] Furthermore, if Figure 2As shown, the fixing assembly FA may further include a second fixing portion 101 fixed to the housing 102, and the second fixing portion 101 is disposed on the first fixing portion 108. The second fixing portion 101 and the first fixing portion 108 may be arranged along the main axis MX, and the second fixing portion 101 may have a third optical element 101E (e.g., an aperture structure).

[0138] The external light can pass through the aperture structure of the second fixing portion 101 and the first optical element OE1 along the optical axis O and then be received by the second optical element OE2. In this embodiment, the second optical element OE is the aforementioned image sensor, configured to generate a digital image signal after receiving the aforementioned external light.

[0139] Furthermore, if Figure 3 As shown, the first fixed portion 108 has a first side surface 108S1 facing the first movable portion 104, and the first movable portion 104 has a first movable surface 104S1 facing the first fixed portion 108. Furthermore, the housing 102 has a side wall SW1 facing the first movable portion 104.

[0140] like Figure 3 As shown, when viewed along the second axis AX2 (Y axis), the side wall SW1, the first active surface 104S1, the first side surface 108S1 and the main axis MX are sequentially arranged along the first axis AX1. The second axis AX2, the first axis AX1 and the main axis MX are perpendicular to each other.

[0141] When viewed along the main axis MX or the first axial direction AX1 , the first movable portion 104 surrounds the first fixed portion 108 . When viewed along the main axis MX or the first axial direction AX1 , the side wall SW1 surrounds the first movable portion 104 and the first fixed portion 108 .

[0142] That is, when the main axis MX is taken as the center, the fixed part (e.g., the first fixed part 108) of the optical element driving mechanism 100 is located at the center, and the movable part (the first movable part 104) is arranged outward from the center, and on the first axial direction AX1, there is no element between the first movable part 104 and the side wall SW1 that drives or guides the movement of the first movable part 104 and the second movable part 114. For example, when observed along the first axial direction AX1 or the second axial direction AX2, the first elastic element 106 and the second elastic element 110 are not located between the side wall SW1 and a second movable surface 104S2 of the first movable part 104.

[0143] Please refer to Figures 4 to 5 , Figure 4 is a perspective view of a partial structure of an optical element driving mechanism 100 according to an embodiment of the present disclosure, and Figure 5FIG. 1 is a three-dimensional diagram of a part of the structure of the optical element driving mechanism 100 according to an embodiment of the present disclosure at another viewing angle. In this embodiment, the first elastic element 106 has a first movable section 1061 , a first middle section 1063 and a first fixed section 1062 .

[0144] like Figure 4 As shown, the first middle section 1063 is connected between the first movable section 1061 and the first fixed section 1062 . The first movable section 1061 is fixedly connected to an upper surface 1045 of the first movable portion 104 , and the first fixed section 1062 is fixedly connected to the first fixed portion 108 .

[0145] Correspondingly, if Figure 5 As shown, the second elastic element 110 has a second active section 1101 , a second middle section 1103 and a second fixed section 1102 , and the second middle section 1103 is connected between the second active section 1101 and the second fixed section 1102 .

[0146] Specifically, the second movable section 1101 is fixedly connected to a first boss 1047 of the first movable portion 104 , and the first boss 1047 protrudes from a lower surface 1046 of the first movable portion 104 .

[0147] Similarly, the second fixed section 1102 is fixedly connected to a second boss 108P of the first fixed portion 108, and the second boss 108P protrudes from a bottom surface BWS1 of the first fixed portion 108. Based on such a configuration, the problem of the second elastic element 110 colliding with the first magnetic element ME1 when the first movable portion 104 moves along the main axis MX can be avoided.

[0148] Please refer to Figure 4 and Figure 6 , Figure 6 The optical element driving mechanism 100 according to an embodiment of the present disclosure is Figure 1 In this embodiment, the first fixing portion 108 may include a first body 1080 and the aforementioned four first fixing structures 1081. These first fixing structures 1081 are configured to be fixed to the housing 102. Specifically, each first fixing structure 1081 has an abutting portion 1082 protruding from the first body 1080 toward the housing 102 along the main axis MX.

[0149] Each abutting portion 1082 is configured to abut against a bottom surface TWS1 of the top wall TW of the housing 102. Figure 6 As shown, when viewed along the main axis MX, two left-right opposite abutting portions 1082 are symmetrically disposed on both sides of the first optical element OE1.

[0150] Furthermore, each first fixing structure 1081 further has a buckle portion 1084 disposed on the abutting portion 1082, and the buckle portion 1084 has a hook-shaped structure. The buckle portion 1084 is configured to abut against a top surface TWS2 of the top wall TW.

[0151] like Figure 6 As shown, when viewed along the first axial direction AX1, each buckle portion 1084 and the corresponding abutment portion 1082 are located on opposite sides of the top wall TW. Figure 4 As shown, each abutting portion 1082 may have a left section 1085 and a right section 1086 , and when viewed along the main axis MX, the locking portion 1084 is located between the left section 1085 and the right section 1086 .

[0152] Based on such a structural configuration, the first fixing portion 108 can be surely engaged and fixed to the housing 102 to carry the first optical element OE1 with a relatively large weight, and the weight of the components of these fixing parts will not affect the movement of the movable assembly MA. In addition, the number of the first fixing structures 1081 is not limited to this embodiment, and for example, there may be two.

[0153] Then please go back to Figure 1 as well as Figure 3 In this embodiment, the second fixing portion 101 has a second body 1010 and two second fixing structures 1011 , and the two second fixing structures 1011 extend from the second body 1010 along the first axial direction AX1 .

[0154] Each of the two second fixing structures 1011 has an outer supporting portion 1012 and a lower pressing portion 1014 , and the outer supporting portion 1012 is connected between the second body 1010 and the lower pressing portion 1014 .

[0155] like Figure 1 and Figure 3 As shown, when viewed along the first axial direction AX1 , the outer support portion 1012 overlaps with the top wall TW of the housing 102 , and when viewed along the first axial direction AX1 , the pressing portion 1014 does not overlap with the top wall TW.

[0156] like Figure 3 As shown, when viewed along the main axis MX, the pressing portion 1014 overlaps the top wall TW, and when viewed along the main axis MX, the supporting portion 1012 does not overlap the top wall TW. Figure 1 As shown, when viewed along the main axis MX, the outer support portion 1012 may have an arc-shaped structure.

[0157] Please refer to Figure 4 and Figure 7 . Figure 7 FIG. 1 is a top view of an optical element driving mechanism 100 according to an embodiment of the present disclosure. In this embodiment, the second movable portion 114 has a movable body 1140 and two cantilevers 1141 , 1142 , and the cantilevers 1141 , 1142 are connected between the movable body 1140 and the housing 102 .

[0158] Since the cantilevers 1141 and 1142 are symmetrical, only the detailed structural features of the cantilever 1141 will be described below. The cantilever 1141 may have a first end 1143, a plurality of bent portions 1144 and a second end 1145, and the bent portions 1144 are connected between the first end 1143 and the second end 1145.

[0159] like Figure 7 As shown, when viewed along the main axis MX, the movable body 1140 has a rectangular structure. When viewed along the main axis MX, the rectangular structure has a side 114S, and the first end 1143 extends from the center 114C of the side 114S of the rectangular structure. The first end 1143 and the movable body 1140 are connected to each other, and due to the configuration that the first end 1143 is connected to the center 114C of the side 114S, the movable body 1140 can be more stable when moving along the first axial direction AX1 and / or the second axial direction AX2 without the problem of tilting (tile). Furthermore, as shown in FIG. Figure 2 As shown, the second end portion 1145 is disposed in a communication opening 102H of the housing 102. The communication opening 102H is formed by the top surface TWS2 of the housing 102.

[0160] Furthermore, if Figure 2 and Figure 7 As shown, the optical element driving mechanism 100 further includes a first circuit component 120 disposed in a receiving groove 1025 of the housing 102, and the receiving groove 1025 is connected to the connecting opening 102H.

[0161] In addition, in this embodiment, a second circuit component 130 may be disposed on the second fixed portion 101 , and the second circuit component 130 and the second end portion 1145 of the second movable portion 114 are electrically connected to an external circuit through the first circuit component 120 .

[0162] The first circuit component 120 and the second circuit component 130 are flexible circuit boards, and the external circuit is, for example, a control integrated circuit or a control chip of the electronic device, but is not limited thereto.

[0163] Based on the above electrical connection configuration, the external circuit can send a control signal through the circuits in the first circuit assembly 120 and the second circuit assembly 130 to control the aperture structure of the second fixing portion 101 to perform a switch action.

[0164] like Figure 2 As shown, the receiving groove 1025 may have a first receiving portion 1026 and a second receiving portion 1027. The first receiving portion 1026 is formed by a depression of the top surface TWS2 of the top wall TW, and the second receiving portion 1027 is formed by a depression of an outer side surface SW11 of the side wall SW1.

[0165] Correspondingly, the first circuit component 120 may have a first section 121 and a second section 122 , the second section 122 is connected to the first section 121 , and the first section 121 and the second section 122 are respectively accommodated in the first accommodation portion 1026 and the second accommodation portion 1027 .

[0166] like Figure 7 As shown, when viewed along the main axis MX, the first section 121 may have a U-shaped structure, surrounding a portion of the second fixing portion 101. Furthermore, when viewed along the main axis MX, the second section 122 may have an L-shaped structure.

[0167] Please refer to Figures 7 to 9 . Figure 8 The optical element driving mechanism 100 according to an embodiment of the present disclosure is Figure 1 The solid cross-section of line segment CC in Fig. 9 The optical element driving mechanism 100 according to an embodiment of the present disclosure is Figure 1 Cross-section of line segment DD in .

[0168] like Figure 7 and Figure 8 As shown, when viewed along the major axis MX, the receiving groove 1025 does not overlap the first end 1143. Fig. 9 As shown, when viewed along the first axial direction AX1, the first end portion 1143 is located between the side wall SW1 and the receiving groove 1025. Figure 8 and Fig. 9 As shown, when viewed along the second axial direction AX2 , the first end portion 1143 does not overlap the receiving groove 1025 , and the first end portion 1143 does not overlap the bottom surface TWS1 below the receiving groove 1025 .

[0169] Furthermore, if Figure 7 as well as Fig. 9As shown, the second circuit component 130 has a first electrical connection end 131 and a second electrical connection end 132, and when viewed along the first axial direction AX1, the first electrical connection end 131 and the second electrical connection end 132 are located on opposite sides of the second fixing portion 101, but other embodiments are not limited thereto. The first electrical connection end 131 and the second electrical connection end 132 are connected to the first section 121. Specifically, the first electrical connection end 131 and the second electrical connection end 132 may be respectively provided with two first electrical contacts 1311 and two second electrical contacts 1321, which may be connected to the first circuit component 120 by welding, but the connection method is not limited thereto.

[0170] like Fig. 9 As shown, when observed along the first axial direction AX1, the first segment 121 is located in the accommodating groove 1025, and the top surface TWS2 does not overlap the first segment 121 of the first circuit assembly 120 in the second axial direction AX2. In other words, according to the above structural configuration, the optical element driving mechanism 100 can be made more compact as a whole, and when the movable body 1140 of the second movable part 114 moves, the cantilever 1141 that moves along with it will not hit the top wall TW and cause damage.

[0171] In addition, if Fig. 9 As shown, when viewed along the first axial direction AX1, the first segment 121 is closer to a light incident end LE1 of the optical element driving mechanism 100 than the second optical element OE2 in the Z-axis direction.

[0172] Furthermore, if Figure 7 As shown, a plurality of electrical contacts 1221 may be formed on the second section 122, and configured to be electrically connected to the aforementioned external circuit. Fig. 9 As shown, when viewed along the first axis AX1 , the electrical contacts 1221 are closer to a light emitting end LE2 of the optical element driving mechanism 100 than the first segment 121 in the Z-axis direction.

[0173] Please refer to Fig.10 , Fig.10 FIG. 1 is a perspective view of an optical element driving mechanism 100A according to another embodiment of the present disclosure. In this embodiment, the first fixing portion 108 and the housing 102 are integrally formed and can be made of, for example, a plastic material. Based on such a design, the connection strength between the first fixing portion 108 and the housing 102 can be increased to carry the heavier first optical element OE1.

[0174] Furthermore, in this embodiment, the optical element driving mechanism 100A may include a plurality of circuit components 150 embedded in the housing 102, for example, by insert molding technology. The circuit components 150 may be made of a conductive metal material.

[0175] In this embodiment, the second optical element OE2 is electrically connected to the circuit components 150 via the cantilevers 1141 and 1142 of the second movable portion 114, and the circuit components 150 have a plurality of exposed electrical ends 152 configured to be electrically connected to the external circuit. In other words, the second optical element OE2 can be directly electrically connected to the external circuit through the circuit components 150.

[0176] Since the first circuit component 120 of the aforementioned embodiment is omitted, the design of this embodiment can increase the convenience of assembling the optical element driving mechanism 100A, and can further increase the overall structural strength, thereby avoiding the problem of some components detaching when the optical element driving mechanism 100A is impacted.

[0177] In summary, the present disclosure provides an optical element driving mechanism, including a movable component, a fixed component, and two driving components. The fixed component has a first fixed portion, configured to carry a first optical element. The movable component is movably connected to the first fixed portion and is configured to carry a second optical element, and the driving components are configured to drive the movable component to move relative to the fixed component. The fixed component includes a housing, and the movable component is suspended in the housing and surrounds the first fixed portion. Based on such a design, compared with the known driving mechanism, the present disclosure can carry a first optical element (lens) of greater weight, and more effectively reduce the weight of the movable portion and the driving component, thereby achieving the purpose of lightweighting.

[0178] In some embodiments, a receiving groove may be formed on the top surface of the housing, configured to receive a first circuit component, and the second movable portion of the movable component may be electrically connected to an external circuit through the first circuit component. The first circuit component and the second movable portion may be flexible circuit boards. In addition, a second circuit component may be disposed on the second fixed portion of the fixed component, and may also be electrically connected to an external circuit through the first circuit component.

[0179] When the first circuit assembly is disposed in the receiving groove, the first circuit assembly will not exceed the top surface of the housing, thereby achieving the purpose of miniaturization. In addition, the location of the receiving groove also avoids the first end of the cantilever of the second movable part, so when the second movable part moves, the first end will not hit the bottom surface of the housing, thereby avoiding the problem of damage to the cantilever of the second movable part.

[0180] Although the embodiments and advantages of the present disclosure have been disclosed as above, it should be understood that those skilled in the art may make changes, substitutions and modifications without departing from the spirit and scope of the present disclosure. In addition, the scope of protection of the present disclosure is not limited to the processes, machines, manufactures, material compositions, devices, methods and steps in the specific embodiments described in the specification. Any technician in the relevant technical field can understand the current or future developed processes, machines, manufactures, material compositions, devices, methods and steps from the disclosure of the present disclosure. As long as they can implement substantially the same functions or obtain substantially the same results in the embodiments described herein, they can be used according to the present disclosure. Therefore, the scope of protection of the present disclosure includes the above-mentioned processes, machines, manufactures, material compositions, devices, methods and steps. In addition, each claim constitutes an individual embodiment, and the scope of protection of the present disclosure also includes the combination of each claim and embodiment.

Claims

1. An optical element driving mechanism, characterized in that: include: a fixing assembly configured to be connected to a first optical element; a movable component, movable relative to the fixed component; as well as a first driving assembly configured to drive the movable assembly to move relative to the fixed assembly; The fixing assembly includes a first accommodation space configured to accommodate a second optical element.

2. The optical element driving mechanism according to claim 1, wherein: The fixing assembly includes a housing and a base; The housing is configured to be fixedly connected to the base; The housing and the base are arranged along a main axis; The fixing assembly also includes a first fixing portion fixed to the housing; The first fixing portion is configured to be connected to the first optical element; The movable assembly includes a first movable portion movably connected to the first fixed portion; The first fixed portion has a first side surface facing the first movable portion; The first movable portion has a first movable surface facing the first fixed portion; The housing has a side wall facing the first movable part; When viewed along a second axial direction, the side wall, the first active surface, the first side surface and the main axis are arranged in sequence along a first axial direction; The second axial direction, the first axial direction and the main axis are perpendicular to each other; When viewed along the main axis, the first movable portion surrounds the first fixed portion; When viewed along the main axis, the side wall surrounds the first movable portion and the first fixed portion.

3. The optical element driving mechanism according to claim 2, wherein: The fixing assembly also includes a second fixing portion fixed to the housing; The second fixing portion is disposed on the first fixing portion; The second fixing portion and the first fixing portion are arranged along the main axis; The second fixing portion has a third optical element; The second fixing portion has a second body and a plurality of second fixing structures; The plurality of second fixing structures extend from the second body along the first axial direction; Each of the plurality of second fixing structures has an outer supporting portion and a lower pressing portion; The outer supporting portion is connected between the second body and the pressing portion; When viewed along the first axial direction, the outer support portion overlaps a top wall of the housing; When viewed along the first axial direction, the pressing portion does not overlap the top wall; When viewed along the main axis, the pressing portion overlaps the top wall; When viewed along the major axis, the outer support portion does not overlap the top wall; When viewed along the main axis, the outer support portion has an arc-shaped structure.

4. The optical element driving mechanism according to claim 2, wherein: The first fixing portion has a first body and a first fixing structure; The first fixing structure is configured to be fixed to the housing; The first fixing structure has a plurality of abutment portions extending and protruding from the first body along the main axis; The plurality of abutting portions are configured to abut against a bottom surface of a top wall of the housing; The first fixing structure also has a plurality of buckle parts, which are respectively arranged on the plurality of abutment parts; Each of the plurality of buckle portions has a hook-shaped structure; The plurality of buckle portions are configured to abut against a top surface of the top wall; When viewed along the first axial direction, each buckle portion and the corresponding abutment portion are located on opposite sides of the top wall; Each of the plurality of abutting portions has a left section and a right section; When viewed along the main axis, the buckle portion is located between the left section and the right section.

5. The optical element driving mechanism according to claim 4, characterized in that: The optical element driving mechanism also includes an intermediate component; The movable component is movably connected to the fixed component through the intermediate component; The intermediate component includes a first elastic element configured to connect the first movable portion and the first fixed portion; The first elastic element has a first movable section, a first middle section and a first fixed section; The first middle section is connected between the first movable section and the first fixed section; The first movable section is fixedly connected to an upper surface of the first movable portion; The first fixing section is fixedly connected to the first fixing portion; The intermediate component includes a second elastic element configured to connect the first movable portion and the first fixed portion; The second elastic element has a second active section, a second middle section and a second fixed section; The second middle section is connected between the second movable section and the second fixed section; The second movable section is fixedly connected to a first boss of the first movable portion; The first boss protrudes from a lower surface of the first movable part; The second fixing section is fixedly connected to a second boss of the first fixing portion; The second boss protrudes from a bottom surface of the first fixing portion; When viewed along the first axial direction, the first elastic element and the second elastic element are not located between the side wall and the first active surface.

6. The optical element driving mechanism according to claim 5, characterized in that: The movable assembly further includes a second movable portion configured to carry the second optical element; The intermediate component also includes an intermediate elastic element connected between the first movable section and the second movable portion; The intermediate elastic element has a strip-shaped structure and extends along the main axis; The first driving assembly includes a first magnetic element and a second magnetic element; The first magnetic element is disposed on the first fixing portion; The second magnetic element corresponds to the first magnetic element and is disposed on the first movable portion; The first magnetic element is configured to induce a first driving force with the second magnetic element; The first driving force is configured to drive the first movable portion and the second movable portion to move along the main axis relative to the first fixed portion; When the first movable portion and the second movable portion move along the main axis, the intermediate elastic element moves along the main axis at the same time, and the intermediate elastic element does not bend; The optical element driving mechanism further includes a second driving assembly configured to drive the second movable portion to move relative to the first movable portion and the first fixed portion; The second driving assembly includes a third magnetic element disposed on the second movable portion; The third magnetic element is configured to induce a second driving force with the second magnetic element; The second driving force is configured to drive the second movable portion to move along the first axial direction and / or the second axial direction.

7. The optical element driving mechanism according to claim 6, wherein: The second movable part has a movable body and at least one cantilever; The at least one cantilever is connected between the movable body and the housing; The at least one cantilever has a first end, a plurality of bent portions and a second end; A plurality of the bending portions are connected between the first end portion and the second end portion; When viewed along the main axis, the movable body has a rectangular structure; The rectangular structure has a side when viewed along the major axis; When viewed along the major axis, the first end extends from a center of the side of the rectangular structure; The second end is disposed in a communication opening of the housing; The communication opening is formed by the top surface of the housing.

8. The optical element driving mechanism according to claim 7, wherein: The optical element driving mechanism also includes a first circuit component disposed in a receiving groove of the housing; The accommodating groove is communicated with the communicating opening; The fixing assembly also includes a second fixing portion fixed to the housing; The second fixing portion is disposed on the first fixing portion; A second circuit component is disposed on the second fixed portion, and the second circuit component and the second end of the second movable portion are electrically connected to an external circuit through the first circuit component; The accommodating groove has a first accommodating portion and a second accommodating portion; The first accommodation portion is formed by being recessed from the top surface of the top wall; The second accommodating portion is formed by being recessed from an outer side surface of the side wall; The first circuit component has a first section and a second section; The second section is connected to the first section; The first section and the second section are respectively accommodated in the first accommodation portion and the second accommodation portion; When viewed along the main axis, the first section has a U-shaped structure surrounding a portion of the second fixing portion; The second end of the at least one cantilever is fixedly connected to the first section; When viewed along the major axis, the second section has an L-shaped structure.

9. The optical element driving mechanism according to claim 8, wherein: When viewed along the major axis, the receiving groove does not overlap the first end; When viewed along the first axial direction, the first end portion is located between the side wall and the accommodating groove; When viewed along the second axial direction, the first end portion does not overlap the accommodating groove; The second circuit component has a first electrical connection end and a second electrical connection end; When viewed along the first axial direction, the first electrical connection end and the second electrical connection end are located on opposite sides of the second fixing portion; The first electrical connection end and the second electrical connection end are respectively provided with a plurality of first electrical contacts and a plurality of second electrical contacts, configured to be connected to the first circuit component; When viewed along the first axial direction, the first section is located in the accommodating groove, and the top surface does not overlap the first section of the first circuit component in the second axial direction; When observed along the first axial direction, on the main axis, the first section is closer to a light incident end of the optical element driving mechanism than the second optical element; The second section is formed with a plurality of electrical contacts configured to be electrically connected to the external circuit; When observed along the first axial direction, on the main axis, the plurality of electrical contacts are closer to a light emitting end of the optical element driving mechanism than the first section.

10. The optical element driving mechanism according to claim 2, wherein: The first fixing portion and the housing are formed integrally; The optical element driving mechanism also includes a plurality of circuit components embedded in the housing; The movable assembly further includes a second movable portion configured to carry the second optical element; The second optical element is electrically connected to the plurality of circuit components via at least one cantilever of the second movable portion; The circuit components have a plurality of electrical ends configured to be electrically connected to an external circuit.

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