Driving device and camera module

Abstract

The application discloses a driving device and a camera module, comprising: a shake reduction frame for coupling an optical element, the optical element defining an optical axis, the shake reduction frame comprising adjacent first and second surfaces; a base, the shake reduction frame being movably arranged on the base; a side spring part, the side spring part being connected to the shake reduction frame at the first surface, the side spring part being bent from the first surface to extend to the second surface and being connected to the base at the second surface, wherein the side spring part is parallel to the optical axis direction at the connection between the first surface and the second surface; and a driving assembly configured to drive the shake reduction frame to move.

Description

Technical Field

[0001] The present application relates to the technical field of camera modules, and in particular to a driving device and a camera module. Background Art

[0002] During filming, the camera is susceptible to external forces such as shaking caused by hand-held motion, vehicle movement, and environmental factors, which can lead to unclear or blurred images. Common shake compensation systems on mobile phones use lens shifting to compensate for optical path deviation. This compensation mechanism primarily utilizes spring wires to suspend and shift the active element to achieve optical path compensation. However, spring wires are complex to assemble and can break easily during use, resulting in motor failure or poor compensation effectiveness.

[0003] Therefore, an excellent driving device and camera module are expected to meet consumers' needs for focusing function and / or anti-shake function. Summary of the Invention

[0004] One purpose of the present application is to provide a driving device and a camera module that overcome the deficiencies of the prior art and meet consumers' demands for focusing function and / or anti-shake function.

[0005] According to one aspect of the present application, a driving device is provided, comprising:

[0006] An anti-shake frame, configured to couple with an optical element, wherein the optical element defines an optical axis, the anti-shake frame comprising a first surface and a second surface adjacent to each other;

[0007] a base, the anti-shake frame being movably disposed on the base;

[0008] a side elastic member connected to the anti-shake frame on the first surface, the side elastic member bends and extends from the first surface to the second surface, and is connected to the base on the second surface, wherein the side elastic member is parallel to the optical axis at the connection between the first surface and the second surface; and

[0009] A driving assembly is configured to drive the anti-shake frame to move.

[0010] In some embodiments, the side spring element component includes a first side spring element unit and a second side spring element unit, the first side spring element unit is connected to the base on the second surface, the second side spring element unit is connected to the anti-shake frame on the first surface, the first side spring element unit and the second side spring element unit are arranged on opposite sides, the first side spring element unit and the second side spring element unit are connected to each other, and the connection position between the first side spring element unit and the second side spring element unit is parallel to the optical axis direction.

[0011] In some embodiments, the first side spring sheet unit faces a first direction and the second side spring sheet unit faces a second direction. When the anti-shake frame is driven by the driving component to move along the first direction, the first side spring sheet unit is deformed and performs a stretching movement; when the anti-shake frame is driven by the driving component to move along the second direction, the second side spring sheet unit is deformed and performs a stretching movement, wherein the first direction is perpendicular to the second direction.

[0012] In some embodiments, the first side elastic sheet unit and the second side elastic sheet unit are an integrated structure, and there is only one bend between the first side elastic sheet unit and the second side elastic sheet unit, so that the first side elastic sheet unit and the second side elastic sheet unit are located in two adjacent different planes.

[0013] In some embodiments, the first side elastic sheet unit and the second side elastic sheet unit are split structures, and the first side elastic sheet unit and the second side elastic sheet unit are connected together at the connection position by bonding, welding, splicing, riveting, etc.

[0014] In some embodiments, one end of the first side spring piece unit has a first splicing interface, and one end of the second side spring piece unit has a second splicing interface, the opening directions of the first splicing interface and the second splicing interface are opposite, and the first splicing interface and the second splicing interface are spliced ​​together to connect the first side spring piece unit and the second side spring piece unit into one.

[0015] In some embodiments, the first side spring piece unit includes a first fixing portion, a first connecting portion, and at least three bent segments extending between the first fixing portion and the first connecting portion; the second side spring piece unit includes a second fixing portion, a second connecting portion, and at least three extending segments extending between the second fixing portion and the second connecting portion; the first fixing portion is fixedly connected to the base, the second fixing portion is fixedly connected to the anti-shake frame, and the first connecting portion and the second connecting portion are connected to each other.

[0016] In some embodiments, the first side spring piece unit includes the first fixed portion, the first bending section, the second bending section, the third bending section, the fourth bending section and the first connecting portion connected in sequence, wherein the first bending section extends from the first fixed portion along the optical axis toward the object side, the second bending section extends from the first bending section along the second direction, the third bending section extends from the second bending section along the optical axis toward the image side, and the fourth bending section extends from the third bending section along the second direction and is connected to the first connecting portion.

[0017] In some embodiments, the second side spring piece unit includes a second connecting portion, a first extension section, a second extension section, a third extension section, a fourth extension section and a second fixed portion connected in sequence, wherein the first connecting portion and the second connecting portion are connected as one body, the first extension section extends from the second connecting portion along the first direction, the second extension section extends from the first extension section along the optical axis toward the object side, the third extension section extends from the second extension section along the first direction, and the fourth extension section extends from the third extension section along the optical axis toward the image side and is connected to the second fixed portion.

[0018] In some embodiments, the second side elastic piece unit further includes a fifth extension segment, which extends from the second fixing portion along the optical axis toward the object side, wherein the extension directions of the first bending segment and the fifth extension segment are parallel to each other and in opposite directions.

[0019] In some embodiments, the position of the first fixing portion is lower than the position of the first connecting portion, and the position of the first fixing portion is lower than the position of the second fixing portion.

[0020] In some embodiments, the corner between the two bending sections of the first side elastic sheet unit may be rounded, and the corner between the two extending sections of the second side elastic sheet unit may be rounded.

[0021] In some embodiments, the driving device also includes a focusing carrier and a first spring element assembly, the first spring element assembly includes an upper spring element group and a lower spring element group, the upper spring element group and the lower spring element group are arranged at intervals along the optical axis direction, the upper spring element group is respectively connected to the top surface of the anti-shake frame and the top surface of the focusing carrier, the lower spring element group is respectively connected to the bottom surface of the anti-shake frame and the bottom surface of the focusing carrier to suspend the focusing carrier in the anti-shake frame, and the side spring element component is connected to the upper spring element group or the lower spring element group.

[0022] In some embodiments, the lower spring plate group includes at least one extension leg, the corner of the base includes a damping groove, along the height direction, the extension leg overlaps with the position of the damping groove, the damping groove is filled with damping glue, and at least one of the extension legs extends downward to extend into the damping glue.

[0023] In some embodiments, the anti-shake frame includes a damping component, which includes a supporting portion extending in a horizontal direction and a damping portion extending in a vertical direction. The supporting portion is integrally connected to the damping portion, and the supporting portion is fixed to the anti-shake frame. The damping portion is bent and extended from the supporting portion and covers the extension leg. The damping portion and the extension leg are overlapped and extend into the damping glue together to increase the thickness of the extension leg.

[0024] In some embodiments, the base includes a damping groove filled with damping glue, the anti-shake frame includes a damping component, the damping component and the anti-shake frame are integrally formed, the damping component includes a supporting portion extending in a horizontal direction and a damping portion extending in a vertical direction, at least a portion of the supporting portion is covered by the anti-shake frame, at least a portion of the damping portion is covered by the anti-shake frame, and at least a portion of the damping portion is exposed to the outside of the anti-shake frame and extends downward to extend into the damping glue.

[0025] In some embodiments, the driving component includes a focusing coil portion, a magnet portion and an anti-shake coil portion, the focusing coil portion is arranged on the focusing carrier, the magnet portion is arranged on the anti-shake frame, and the anti-shake coil portion is arranged on the base, the focusing coil portion and the magnet portion are arranged relative to each other in the horizontal direction, and the anti-shake coil portion and the magnet portion are arranged relative to each other in the height direction, the focusing coil portion and the magnet portion interact to drive the focusing carrier to move along the optical axis, and the anti-shake coil portion and the magnet portion interact to drive the anti-shake frame to move in a direction perpendicular to the optical axis.

[0026] According to another aspect of the present application, a camera module is provided, comprising:

[0027] Optical lens;

[0028] A photosensitive component, wherein the optical lens is located on a photosensitive path of the photosensitive component and is used to receive light emitted by the optical lens for imaging;

[0029] A driving device, wherein the driving device is suitable for driving the optical lens to move.

[0030] In the following description, some additional embodiments and features are set forth, and those skilled in the art will understand after reviewing the specification or learn these embodiments and features through practice of the disclosed subject matter. A further understanding of the features and advantages of the present disclosure may be achieved by reference to the remainder of the specification and drawings, which constitute a part of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a cross-sectional schematic diagram of a camera module;

[0032] Figure 2 is an exploded schematic diagram of a drive device according to an embodiment of the present application;

[0033] Figure 3 is a schematic diagram of the three-dimensional structure of a driving device according to an embodiment of the present application;

[0034] Figure 4is an exploded schematic diagram of a focus carrier, an anti-shake frame, and a base according to an embodiment of the present application;

[0035] Figure 5 2 is a schematic structural diagram of an upper spring plate assembly, a focus carrier, and an anti-shake frame according to an embodiment of the present application;

[0036] Figure 6 2 is a schematic structural diagram of a lower spring assembly, a focus carrier, and an anti-shake frame according to an embodiment of the present application;

[0037] Figure 7A is a schematic cross-sectional view of a driving device according to an embodiment of the present application;

[0038] Figure 7B yes Figure 7A An enlarged schematic diagram of the circular area in FIG.

[0039] Figure 8A is a schematic cross-sectional view of a driving device according to another embodiment of the present application;

[0040] Figure 8B yes Figure 8A An enlarged schematic diagram of the circular area in FIG.

[0041] Figure 9 2 is a schematic structural diagram of an upper spring sheet assembly and a side spring sheet assembly according to an embodiment of the present application;

[0042] Figure 10 is a schematic structural diagram of an integrated side spring component according to an embodiment of the present application;

[0043] Figure 11 is a schematic structural diagram of a split side spring component according to an embodiment of the present application;

[0044] Figure 12 is an exploded schematic diagram of a base and side shrapnel assembly according to an embodiment of the present application; DETAILED DESCRIPTION

[0045] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0046] The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.

[0047] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0049] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0050] It should be noted that as used in the present application, the words "substantially", "approximately" and similar words are used as approximate words, not as words of degree, and are intended to indicate inherent deviations in measured or calculated values that will be recognized by those of ordinary skill in the art.

[0051] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] Various units, circuits, or other components may be described or stated as being "configured to" perform one or more tasks. In such contexts, "configured to" is used to imply a structure (e.g., a circuit) that performs the one or more tasks during operation by indicating that the unit / circuit / component includes that structure. Additionally, "configured to" may include general structures (e.g., general circuits) manipulated by software and / or firmware to operate in a manner capable of performing the one or more tasks to be addressed. "Configured to" may also include adjusting a manufacturing process (e.g., a semiconductor fabrication facility) to manufacture a device (e.g., an integrated circuit) suitable for implementing or performing the one or more tasks.

[0053] The terms used in this description are only for the purpose of describing specific embodiments and are not intended to be limiting. As used in the specification and the appended claims, the singular forms "a", "an" and "the" are intended to also encompass the plural form, unless the context clearly indicates otherwise. It will also be understood that the terms "and / or" used herein refer to and encompass any and all possible combinations of one or more items in the items listed in association. It will also be understood that the terms "comprises" and / or "comprising" when used in this specification specify the presence of stated features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or their groupings.

[0054] As used herein, the term "if" may be interpreted to mean "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined that" or "if [stated condition or event] is detected" may be interpreted to mean "upon determining that" or "in response to determining that" or "upon detecting [stated condition or event]" or "in response to detecting [stated condition or event]," depending on the context.

[0055] Figures 1 to 11 The driving device 30 and the camera module 1 of the present application are shown. Figure 1 As shown, a camera module 1 according to an embodiment of the present application is illustrated, which includes a photosensitive component 20, an optical lens 10 held on the photosensitive path of the photosensitive component 20, and a driving device 30 for driving the optical lens 10 to move to achieve optical performance adjustment, for example, for achieving anti-shake, focusing and other functions.

[0056] Correspondingly, the optical lens 10 includes a lens barrel and a plurality of optical lenses mounted on the lens barrel. The optical lens 10 has an optical axis, which is also the optical axis of the plurality of optical lenses. The photosensitive component 20 is arranged opposite to the optical lens 10 along the optical axis. For ease of description, the side of the camera module 1 facing the object is referred to as the object side, and the side of the camera module 1 facing the photosensitive component 20 is referred to as the image side. The optical axis direction includes the direction along the optical axis pointing to the image side and the direction along the optical axis pointing to the object side. The horizontal direction is the direction perpendicular to the optical axis direction, and the height direction is the direction parallel to the optical axis direction.

[0057] In one embodiment of the present application, the optical lens 10 is fixed in the driving device 30, and the photosensitive component 20 is fixed on the image side of the driving device 30, so that the optical lens 10 can be maintained on the photosensitive path of the photosensitive component 20 by the driving device 30. The optical lens 10 is suitable for being driven by the driving device 30 to achieve functions such as anti-shake and focusing.

[0058] The photosensitive assembly 20 includes a chip circuit board 22, a photosensitive chip 21 electrically connected to the chip circuit board 22, and a plurality of electronic components 24. The photosensitive chip 21 is used to receive the external light image collected by the optical lens 10 and is electrically connected to the external mobile electronic device through the chip circuit board 22. In one embodiment of the present application, the plurality of electronic components 24 can be one or more of passive electronic devices such as resistors and capacitors and active electronic devices such as driver chips and memory chips.

[0059] The photosensitive component 20 further includes a filter component 23, which includes a filter element 231. The filter element 231 is maintained on the photosensitive path of the photosensitive chip 21. The filter element 231 is arranged between the optical lens 10 and the photosensitive chip 21. It is used to filter the incident light entering the photosensitive chip 21 and filter out stray light that is not necessary for imaging, such as infrared light, in the incident light.

[0060] The filter assembly 23 also includes a filter element bracket 232. The filter element 231 is installed and fixed on the filter element bracket 232 and corresponds to at least the photosensitive area of ​​the photosensitive chip 21. The filter element bracket 232 has a light hole. The incident light passing through the optical lens 10 is incident on the photosensitive chip 21 through the light hole. The filter element 231 can be attached to the filter element bracket 232 upright or upside down.

[0061] Furthermore, the filter element bracket 232 is fixed to the chip circuit board 22. In one embodiment of the present application, the photosensitive component 20 is fixed to the image side of the driving device 30 through the filter element bracket 232. In another embodiment of the present application, the photosensitive component 20 can also be fixed to the image side of the driving device 30 through the chip circuit board 22.

[0062] The filter element bracket 232 may be prefabricated and then fixed to the chip circuit board 22 by, for example, bonding with an adhesive medium, or may be integrally formed on the chip circuit board 22 by, for example, a molding process, and directly fixed to the chip circuit board 22 by integral molding. The present application is not limited thereto.

[0063] like Figures 2 to 11 As shown, the driving device 30 of the present application can drive the optical lens 10 to move along the Z-axis direction to adjust the distance between the optical lens 10 and the photosensitive component 20 to achieve the focusing function; the driving device 30 can also drive the optical lens 10 to move in the X-axis direction and / or the Y-axis direction to make the optical lens 10 translate relative to the photosensitive component 20 to achieve the anti-shake function. In the embodiment of the present application, the X-axis direction and the Y-axis direction are perpendicular to each other, and the Z-axis direction is perpendicular to the X-axis direction and the Y-axis direction. In other words, the X-axis, Y-axis and Z-axis constitute a three-dimensional coordinate system, and the XOY plane where the X-axis direction and the Y-axis direction are located is also called the plane where the horizontal direction is located, and the Z-axis approaches the optical axis direction or the direction parallel to the optical axis. In the present application, the X-axis direction is the first direction, the Y-axis direction is the second direction, and the Z-axis direction is the optical axis direction, and the first direction and the second direction are perpendicular to each other.

[0064] In one embodiment of the present application, Figure 2 and Figure 3 As shown, the driving device 30 includes a fixed portion 31, a focus carrier 32, an anti-shake frame 33, a suspension portion 34, a magnet portion 351, a focus coil portion 352, and an anti-shake coil portion 353. The focus carrier 32 is used to carry an optical element, which can be implemented as an optical lens 10. For example, the optical lens 10 is fixed to the focus carrier 32. The focus carrier 32 is movably mounted on the anti-shake frame 33 via the suspension portion 34. The anti-shake frame 33 is movably mounted on the fixed portion 31 via the suspension portion 34. The magnet portion 351 interacts with the focus coil portion 352 to drive the focus carrier 32 to move along the optical axis to achieve the optical focus function. The magnet portion 351 interacts with the anti-shake coil portion 353 to drive the anti-shake frame 33 to move perpendicular to the optical axis to achieve the optical image stabilization function.

[0065] Specifically, in one embodiment of the present application, Figures 2 to 4 As shown, the fixing part 31 includes a shell 311 and a base 312. The shell 311 and the base 312 are interlocked to form a accommodating cavity of the fixing part 31 to accommodate components such as the focusing carrier 32, the anti-shake frame 33, the suspension part 34, the magnet part 351, the focusing coil part 352 and the anti-shake coil part 353. On the one hand, it can prevent dust from entering, and on the other hand, it can prevent the components from falling when impacted.

[0066] Further, in an embodiment of the present application, the base 312 comprises a base body 3121 and a vibration-isolating coil positioning member 3122 arranged on the base body 3121, wherein the vibration-isolating coil positioning member 3122 is arranged on the top surface of the base body 3121, and the vibration-isolating coil portion 353 is fixed to the vibration-isolating coil positioning member 3122 to fix the vibration-isolating coil portion 353 to the base body 3121. The vibration-isolating coil positioning member 3122 can be implemented as a protrusion extending in the height direction from the top surface of the base body 3121, and the vibration-isolating coil portion 353 is fixed to the circumferential side of the protrusion.

[0067] The housing 311 and the base 312 of the fixed portion 31 are both stators, that is, the fixed portion 31 remains relatively fixed when the driving device 30 drives the optical lens 10 to move, and other components move relative to the fixed portion 31. In an embodiment of the present application, the photosensitive assembly 20 is fixed to the base 312 of the fixed portion 31, and thus the photosensitive assembly 20 also becomes a relatively fixed part. The housing 311 and the base 312 each have a light passage hole to allow imaging light to be incident on the optical lens 10 fixed to the driving device 30 and to reach the photosensitive assembly 20 after being emitted by the optical lens 10.

[0068] In an embodiment of the present application, the focusing carrier 32 comprises a carrier body 321 and a focusing coil mounting groove 322, wherein the optical lens 10 is fixed to the carrier body 321, and the carrier body 321 has a through hole suitable for accommodating the optical lens 10, and the optical lens 10 is fixed in the through hole of the carrier body 321. Specifically, the optical lens 10 can be fixed to the focusing carrier 32 by, for example, bonding or welding, or the optical lens 10 can be fixed to the focusing carrier 32 by integrally forming the lens barrel of the optical lens 10 with the focusing carrier 32, and the present application is not limited in this regard.

[0069] Further, the focusing coil mounting groove 322 is located on the outer side wall of the carrier body 321, that is, the outer side wall of the carrier body 321 is recessed toward the optical axis direction to form the focusing coil mounting groove 322, and the focusing coil portion 352 is arranged in the focusing coil mounting groove 322. It should be understood that the focusing coil portion 352 can be directly wound in the focusing coil mounting groove 322, or the focusing coil portion 352 can be preformed and arranged in the focusing coil mounting groove 322, and the present application is not limited in this regard.

[0070] The focusing carrier 32 further comprises a pair of winding posts 323 located at opposite corners of the carrier body 321, and the winding posts 323 extend from the carrier body 321 toward the direction away from the optical axis. When the focusing coil portion 352 is implemented as a coil surrounding the carrier body 321, the two ends of the focusing coil portion 352 are wound on the pair of winding posts 323, respectively, to facilitate the conduction of the wire circuit of the focusing coil portion 352.

[0071] The focus carrier 32 is movably disposed inside the anti-shake frame 33. The anti-shake frame 33 is movably disposed between the focus carrier 32 and the fixed portion 31. In one embodiment of the present application, the anti-shake frame 33 is movably disposed above the base 312. The anti-shake frame 33 includes a frame body 331 and a magnet mounting groove 332. The frame body 331 has a housing in which the focus carrier 32 is accommodated. The magnet mounting groove 332 is located on a sidewall of the frame body 331. The inner sidewall of the frame body 331 has a magnet mounting groove 332 with an opening facing the focus coil portion 352 and the anti-shake coil portion 353. When the magnet portion 351 is positioned within the magnet mounting groove 332, the magnet portion 351 can be positioned opposite both the focus coil portion 352 and the anti-shake coil portion 353.

[0072] In one embodiment of the present application, the anti-shake frame 33 is used to couple with an optical element, and the optical element defines an optical axis; for example, the optical element can be implemented as an optical lens.

[0073] In one embodiment of the present application, the anti-shake frame 33 includes a top surface 3305, a bottom surface 3306, and side surfaces connected to the top surface 3305 and the bottom surface 3306, wherein the side surfaces include adjacent first surface 3301 and second surface 3302, and adjacent third surface 3303 and fourth surface 3304. In a specific example of the present application, the first surface 3301, the second surface 3302, the third surface 3303, and the fourth surface 3304 are connected end to end in a clockwise direction.

[0074] It is understood that in the embodiment of the present application, the focus carrier 32 can be driven to move relative to the anti-shake frame 33 alone, or it can be driven by the anti-shake frame 33 to move together with the anti-shake frame 33. Furthermore, by driving the focus carrier 32 and / or the anti-shake frame 33 to move, the optical lens 10 is driven to move to achieve the focusing and / or anti-shake functions. Specifically, when the anti-shake frame 33 remains stationary and the focus carrier 32 is driven to move relative to the anti-shake frame 33, the focus carrier 32 can drive the optical lens 10 to move along the optical axis to achieve the optical focusing function; when the anti-shake frame 33 is driven to move relative to the base 312, the anti-shake frame 33 can drive the focus carrier 32 and the optical lens 10 to move in a plane perpendicular to the optical axis to achieve the optical anti-shake function.

[0075] like Figures 3 to 6As shown, in one embodiment of the present application, the suspension portion 34 connects the focus carrier 32, the anti-shake frame 33, and the base 312, so that the focus carrier 32 is suspended in the anti-shake frame 33, and the anti-shake frame 33 is suspended in the base 312. The suspension portion 34 includes a first spring assembly 341 and a side spring assembly 342. The first spring assembly 341 connects the focus carrier 32 and the anti-shake frame 33, and the focus carrier 32 is suspended in the anti-shake frame 33 via the first spring assembly 341. The first spring piece assembly 341 includes an upper spring piece group 3411 and a lower spring piece group 3412. The upper spring piece group 3411 is arranged on the top surface of the anti-shake frame 33, the lower spring piece group 3412 is arranged on the bottom surface of the anti-shake frame 33, and the side spring piece assembly 342 is arranged on the side of the anti-shake frame 33, wherein the side spring piece assembly 342 can be connected to the upper spring piece group 3411 or the lower spring piece group 3412. The upper spring plate group 3411 and the lower spring plate group 3412 are respectively connected to the focusing carrier 32 and the anti-shake frame 33, and are used to support the movement of the focusing carrier 32 along the optical axis. The focusing carrier 32 is suspended in the anti-shake frame 33 by the upper spring plate group 3411 and the lower spring plate group 3412; the side spring plate assembly 342 connects the anti-shake frame 33 and the base 312, and the anti-shake frame 33 is suspended on the base 312 by the side spring plate assembly 342. The side spring plate assembly 342 is used to support the movement of the anti-shake frame 33 along the direction perpendicular to the optical axis (the first direction and the second direction).

[0076] In one embodiment of the present application, Figures 4 to 6 As shown, the upper spring plate group 3411 and the lower spring plate group 3412 are arranged at intervals along the optical axis direction, the upper spring plate group 3411 is arranged on the object side of the focusing carrier 32, and the lower spring plate group 3412 is arranged on the image side of the focusing carrier 32, so that the focusing carrier 32 can be resetably suspended in the anti-shake frame 33. The focusing carrier 32 is suspended in the anti-shake frame 33 under the action of the upper spring plate group 3411 and the lower spring plate group 3412.

[0077] The upper spring plate group 3411 and the lower spring plate group 3412 are generally thin-sheet structures. The upper spring plate group 3411 is connected to the top surface of the anti-shake frame 33 and the top surface of the focus carrier 32, respectively, while the lower spring plate group 3412 is connected to the bottom surface of the anti-shake frame 33 and the bottom surface of the focus carrier 32, respectively. These support and limit the movement of the focus carrier 32, not only helping to improve the structural stability of the drive device 30 but also allowing the focus carrier 32 to move within a certain range of travel. Thus, the focus carrier 32 is clamped between the upper spring plate group 3411 and the lower spring plate group 3412, so that the focus carrier 32 is suspended within the anti-shake frame 33.

[0078] Specifically, in one embodiment of the present application, the upper spring plate assembly 3411 includes a first outer profile 34111 fixed to the anti-shake frame 33, a first inner profile 34112 fixed to the focus carrier 32, and a first deformable portion 34113 integrally connecting the first outer profile 34111 and the first inner profile 34112. The first deformable portion 34113 extends in a curved manner from the first outer profile 34111 to the first inner profile 34112 to reserve sufficient space for the movement of the focus carrier 32. This not only ensures the movement range of the focus carrier 32, but also reduces the driving resistance of the focus carrier 32, thereby improving the optical focus sensitivity of the driving device 30.

[0079] It is understandable that when the length of the first deformation portion 34113 is longer and the first deformation portion 34113 has more bends, the deformation of the first deformation portion 34113 itself is very small after the deformation occurs, and it is easier to reset after the first deformation portion 34113 is stretched. In a specific example of the present application, the first deformation portion 34113 is an elastic linear structure made of an elastic material (such as rubber, plastic, etc.); in another specific example of the present application, the first deformation portion 34113 can also be an elastic linear structure made of a rigid material (such as metal, etc.). In one embodiment of the present application, the first deformation portion 34113 is implemented as a single string, and the two ends of the single string are respectively connected to the first outer profile 34111 and the first inner profile 34112.

[0080] Specifically, in one embodiment of the present application, the lower spring assembly 3412 includes a second outer profile 34121 fixed to the anti-shake frame 33, a second inner profile 34122 fixed to the focus carrier 32, and a second deformable portion 34123 integrally connecting the second outer profile 34121 and the second inner profile 34122. The second deformable portion 34123 extends in a curved manner from the second outer profile 34121 to the second inner profile 34122 to reserve sufficient space for the movement of the focus carrier 32. This not only ensures the movement range of the focus carrier 32, but also reduces the driving resistance of the focus carrier 32, thereby improving the optical focus sensitivity of the driving device 30.

[0081] In one specific example of the present application, the second deformable portion 34123 is an elastic linear structure made of an elastic material (such as rubber, plastic, etc.); in another specific example of the present application, the second deformable portion 34123 can also be an elastic linear structure made of a rigid material (such as metal, etc.). In one embodiment of the present application, the second deformable portion 34123 is implemented as a single string, with the two ends of the single string respectively connecting the second outer profile 34121 and the second inner profile 34122.

[0082] Furthermore, the top surface of the focusing carrier 32 has a carrier top surface recess 3211, which is recessed downward from the top surface of the carrier body 321. The bottom surface of the focusing carrier 32 has a carrier bottom surface recess 3212, which is recessed upward from the bottom surface of the carrier body 321. Along the optical axis, at least a portion of the first deformable portion 34113 overlaps with the carrier top surface recess 3211 of the focusing carrier 32, and at least a portion of the second deformable portion 34123 overlaps with the carrier bottom surface recess 3212 of the focusing carrier 32. This prevents the focusing carrier 32 from colliding with the first deformable portion 34113 and the second deformable portion 34123 when moving along the optical axis, which could damage the upper and lower spring fragment groups 3411 and 3412.

[0083] Furthermore, the top surface of the anti-shake frame 33 has a frame top surface recess 3311, which is recessed downward from the top surface of the frame body 331. The bottom surface of the anti-shake frame 33 has a frame bottom surface recess 3312, which is recessed upward from the bottom surface of the frame body 331. Along the optical axis, at least a portion of the first deformable portion 34113 overlaps with the frame top surface recess 3311 of the anti-shake frame 33, and at least a portion of the second deformable portion 34123 overlaps with the frame bottom surface recess 3312 of the anti-shake frame 33. This prevents the first and second deformable portions 34113, 34123 from colliding with the anti-shake frame 33 and damaging the upper and lower spring plate groups 3411, 3412 when the focus carrier 32 moves along the optical axis, causing deformation.

[0084] The first inner profile 34112 and the first outer profile 34111 of the upper spring plate group 3411 can be fixedly attached to the focus carrier 32 and the anti-shake frame 33 by means such as, but not limited to, bonding or heat riveting. The second inner profile 34122 and the second outer profile 34121 of the lower spring plate group 3412 can be fixedly attached to the focus carrier 32 and the anti-shake frame 33 by means such as, but not limited to, bonding or heat riveting. When the focus carrier 32 is driven to move along the optical axis, the upper spring plate group 3411 and the lower spring plate group 3412 deform to accumulate elastic force. When the focus carrier 32 stops being driven, the accumulated elastic force of the upper spring plate group 3411 and the lower spring plate group 3412 is released, thereby causing the focus carrier 32 to return to its original position.

[0085] Furthermore, in one embodiment of the present application, the upper spring plate group 3411 can have a split structure, and the lower spring plate group 3412 can have an integrated structure, and the upper spring plate group 3411 can be used to achieve circuit conduction of the drive device 30; the lower spring plate group 3412 can always maintain good consistency during installation, so that the entire plane of the lower spring plate group 3412 produces less installation tolerance. In another embodiment of the present application, the upper spring plate group 3411 has an integrated structure, and the lower spring plate group 3412 has a split structure, and the lower spring plate group 3412 can be used to achieve circuit conduction of the drive device 30. Of course, in another embodiment of the present application, the upper spring plate group 3411 has a split structure, and the lower spring plate group 3412 has a split structure, and both the upper spring plate group 3411 and the lower spring plate group 3412 can be used to achieve circuit conduction of the drive device 30.

[0086] like Figures 3 to 5 As shown, in one embodiment of the present application, the upper spring piece assembly 3411 is a split structure, which includes a first upper spring piece component 34114, a second upper spring piece component 34115, a third upper spring piece component 34116, and a fourth upper spring piece component 34117, which are arranged at the four corners of the focus carrier 32 and the anti-shake frame 33. The two upper spring piece components located at opposite corners are rotationally symmetrically arranged. For example, the first upper spring piece component 34114 and the third upper spring piece component 34116 are rotationally symmetrically arranged, and the second upper spring piece component 34115 and the fourth upper spring piece component 34117 are rotationally symmetrically arranged. When the focus carrier 32 moves along the Z-axis, it can suppress the focus carrier 32 from rotating about the Z-axis.

[0087] In one embodiment of the present application, Figure 6 As shown, the lower spring plate assembly 3412 is an integrated structure having a common circular second inner profile 34122, four second outer profiles 34121, and four second deforming portions 34123 respectively connecting the second inner profile 34122 and the second outer profile 34121. The lower spring plate assembly 3412 is a centrosymmetrical structure. When the focus carrier 32 moves along the Z-axis, the symmetric lower spring plate assembly 3412 can suppress the focus carrier 32 from rotating about the Z-axis.

[0088] Further references Figures 6 to 7BIn one embodiment of the present application, the lower spring plate assembly 3412 includes at least one extension leg 34124. A corner of the base 312 includes a damping groove 3123. Along the height direction, the extension leg 34124 overlaps the damping groove 3123. The damping groove 3123 is filled with damping adhesive 3125. The at least one extension leg 34124 extends downward to extend into the damping adhesive 3125. Specifically, the second outer profile 34121 of the lower spring plate assembly 3412 bends and extends toward the base 312 to form the extension leg 34124. The four corners of the base 312 also include four damping grooves 3123, which are formed by being recessed downward from the top surface of the base body 3121. The damping grooves 3123 are filled with damping glue 3125 so that the extension legs 34124 of the lower spring group 3412 can extend into the damping glue 3125. On the one hand, they can buffer the movement of the anti-shake frame 33, and on the other hand, they can isolate vibrations and eliminate the shaking of the anti-shake frame 33 caused by vibration.

[0089] Furthermore, the extension legs 34124 of the lower spring assembly 3412 are formed into a sheet-like, cubic structure of a certain thickness. It should be understood that if the extension legs 34124 were implemented as a thinner, pointed structure, when the anti-shake frame 33 moves, the extension legs 34124 would move within the damping glue 3125, potentially breaking the damping glue 3125 and affecting the damping effect. Furthermore, after the damping glue 3125 is broken, friction between the extension legs 34124 and the damping glue 3125 could cause contamination, potentially affecting imaging quality.

[0090] In one embodiment of the present application, the anti-shake frame 33 further includes a damping member 333. The damping member 333 includes a support portion 3331 extending horizontally and a damping portion 3332 extending vertically. The support portion 3331 and the damping portion 3332 are integrally connected and fixed to the anti-shake frame 33. The damping portion 3332 bends and extends from the support portion 3331, covering the extension leg 34124. The damping portion 3332 overlaps the extension leg 34124 and extends into the damping adhesive 3125, thereby increasing the thickness of the extension leg 34124. In other words, the support portion 3331 extends horizontally and secures the damping member 333 to the anti-shake frame 33. The damping portion 3332 bends from the support portion 3331 and extends along the optical axis to extend into the damping adhesive 3125.

[0091] Specifically, in one embodiment of the present application, the support portion 3331 is fixed between the bottom surface of the anti-shake frame 33 and the second outer profile 34121 of the lower spring plate assembly 3412. The damping portion 3332 overlaps with the extension leg 34124 and extends into the damping adhesive 3125, thereby increasing the thickness of the extension leg 34124 and preventing the damping adhesive 3125 from being split due to the thin extension leg 34124. In another embodiment of the present application, the support portion 3331 is fixed to the second outer profile 34121 of the lower spring plate assembly 3412 (i.e., the second outer profile 34121 of the lower spring plate is fixed between the bottom surface of the anti-shake frame 33 and the top surface of the support portion 3331). The damping portion 3332 overlaps with the extension leg 34124 and extends into the damping adhesive 3125, thereby increasing the thickness of the extension leg 34124 and preventing the damping adhesive 3125 from being split due to the thin extension leg 34124.

[0092] In one embodiment of the present application, in order to simplify the structure of the drive device 30, the number of components in the drive device 30 can be reduced. For example, the extension legs 34124 may not be provided on the second outer profile 34121 of the lower spring plate assembly 3412, and only the damping member 333 may be provided to extend into the damping rubber 3125, so that the vibration isolation function can be achieved solely by the damping member 333.

[0093] like Figures 8A to 8B As shown, in one embodiment of the present application, the damping member 333 is integrally formed with the anti-shake frame 33. This can, on the one hand, reduce the number of components, such as the number of extension legs 34124, thus simplifying the structure of the drive device 30. On the other hand, it can increase the structural strength of the anti-shake frame 33 and the damping member 333. Furthermore, the integral formation of the damping member 333 and the anti-shake frame 33 ensures consistent movement, thereby achieving a better vibration isolation effect and eliminating vibration-induced shaking of the anti-shake frame 33. It should be understood that the damping member 333 and the anti-shake frame 33 can be made of the same material or different materials, for example, the damping member 333 can be made of metal and the anti-shake frame 33 can be made of resin.

[0094] Specifically, the support portion 3331 of the damping member 333 is integrally formed with the frame body 331 of the anti-shake frame 33 and extends horizontally within the frame body 331. The support portion 3331 can be entirely enclosed by the frame body 331, i.e., the support portion 3331 is completely embedded within the frame body 331. Alternatively, the support portion 3331 can be partially enclosed by the frame body 331, i.e., at least a portion of the support portion 3331 is exposed outside the frame body 331.

[0095] At least a portion of the damping portion 3332 is covered by the frame body 331 and is exposed outside the frame body 331. Specifically, at least a portion of the damping portion 3332 of the damping member 333 is integrally formed with the frame body 331 of the anti-shake frame 33, is exposed outside the frame body 331, and extends toward the damping groove 3123 of the base 312. The damping groove 3123 is filled with damping adhesive 3125, allowing the damping portion 3332 to extend into the damping adhesive 3125.

[0096] Furthermore, the damping portion 3332 is located below the supporting portion 3331 and is bent from the supporting portion 3331 extending in the horizontal direction to extend toward the damping groove 3123 of the base 312 along the optical axis.

[0097] In a specific example of the present application, a bend is formed between the portion of the damping portion 3332 embedded in the frame body 331 and the portion exposed outside the frame body 331. This allows the damping portion 3332 to be closer to the center of the damping groove 3123, preventing the damping portion 3332 from colliding with the sidewalls of the damping groove 3123 when the anti-shake frame 33 and the damping member 333 move together.

[0098] In one embodiment of the present application, Figure 3 As shown, the damping member 333 is disposed at at least one corner of the anti-shake frame 33. The extension plane of the damping portion 3332 of the damping member 333 is not parallel to the planes of the two side walls of the anti-shake frame 33 adjacent to the corner. This increases the contact surface between the damping portion 3332 and the damping rubber 3125, resulting in a greater vibration reduction effect when the anti-shake frame 33 moves. In other words, the extension plane of the damping portion 3332 forms a certain angle with the planes of the two side walls of the anti-shake frame 33 adjacent to the corner.

[0099] Of course, correspondingly, the plane on which the extension leg 34124 lies is also not parallel to the planes on which the two side walls adjacent to the corner of the anti-shake frame 33 lie. That is, the extension leg 34124 and the damping portion 3332 are disposed at the same position and angle, so that the extension leg 34124 and the damping portion 3332 can overlap, thereby increasing the thickness of the extension leg 34124.

[0100] like Figure 3 、 Figures 9 to 11As shown, in one embodiment of the present application, a side spring assembly 342 is disposed on the side of the anti-shake frame 33 to connect the anti-shake frame 33 and the base 312. One end of the side spring assembly 342 is connected to the anti-shake frame 33, and the other end of the side spring assembly 342 is connected to the base 312 to support and limit the anti-shake frame 33. This not only helps improve the structural stability of the drive device 30, but also enables the anti-shake frame 33 to move and reset within a certain range of travel. It should be understood that the side spring assembly 342 in the present application is a sheet-like structure. Compared to the easily broken suspension spring wire, the side spring assembly 342 in the present application is wider. On the one hand, it is not easy to break. On the other hand, it can provide more stable support for the anti-shake frame 33. In addition, the side spring assembly has better ductility and is easy to bend.

[0101] In one embodiment of the present application, the side spring assembly 342 includes a side spring component. The side spring component is connected to the anti-shake frame 33 on the first surface 3301. The side spring component bends and extends from the first surface 3301 to the second surface 3302, and is connected to the base 312 on the second surface 3302. The junction between the first surface 3301 and the second surface 3302 of the side spring component is parallel to the optical axis. The junction between the first surface 3301 and the second surface 3302 is referred to as the junction.

[0102] There are four side spring components, including a first side spring component 3421, a second side spring component 3422, a third side spring component 3423, and a fourth side spring component 3424. The four side spring components are respectively arranged at the four corners of the anti-shake frame 33. Furthermore, at least one of the four side spring components extends from a corner of the anti-shake frame 33 toward two side walls adjacent to the corner. For example, a side spring component extends from a corner of the anti-shake frame 33 toward the first surface 3301 and the second surface 3302. Among them, the anti-shake frame 33 has side recesses 3313 at its corners and two side walls adjacent to the corners. The side recesses 3313 are recessed from the frame body 331 toward the optical axis. There are four side recesses 3313 in number, so that the four side spring components are respectively arranged in the four side recesses 3313. When the anti-shake frame 33 is driven to move in a direction perpendicular to the optical axis, the anti-shake frame 33 will not collide with the four side spring components, causing damage to the side spring assembly 342.

[0103] The first side spring part 3421 and the second side spring part 3422 are symmetrically arranged about the Y axis, the third side spring part 3423 and the fourth side spring part 3424 are symmetrically arranged about the Y axis, the first side spring part 3421 and the fourth side spring part 3424 are symmetrically arranged about the X axis, and the second side spring part 3422 and the third side spring part 3423 are symmetrically arranged about the X axis. In this way, the anti-shake frame 33 can be more stably supported, and when the anti-shake frame 33 is driven to move in the X axis direction (the first direction) and / or the Y axis direction (the second direction), the first side spring part 3421, the second side spring part 3422, the third side spring part 3423, and the fourth side spring part 3424 can inhibit the anti-shake frame 33 from generating a movement of rotating in the Z axis direction.

[0104] Further referring to Figures 9 to 11 The side spring part includes a first side spring unit 3425 and a second side spring unit 3426, the first side spring unit 3425 is connected to the base 312 at the second surface 3302, and the second side spring unit 3426 is connected to the anti-shake frame 33 at the first surface 3301. The first side spring unit 3425 and the second side spring unit 3426 are arranged on opposite sides, are connected to each other, and are parallel to the optical axis direction at the connection position.

[0105] The first side spring unit 3425 and the second side spring unit 3426 are connected to each other, and the connection position of the first side spring unit 3425 and the second side spring unit 3426 is located at the corner position of the anti-shake frame 33. The first side spring unit 3425 forms a first plane, and the first plane is parallel to the second surface 3302 of the anti-shake frame 33. The second side spring unit 3426 forms a second plane, and the second plane is parallel to the first surface 3301 of the anti-shake frame 33. In other words, the first plane and the second plane are parallel to the optical axis direction, and the first plane and the second plane are perpendicular to each other. The first plane and the second plane being perpendicular to each other includes two cases: the included angle between the first plane and the second plane is 90°, and the included angle between the first plane and the second plane ranges from 89° to 91°. The case that the first plane and the second plane are approximately perpendicular is caused by assembly tolerance or manufacturing tolerance.

[0106] Furthermore, in one embodiment of the present application, the upper spring plate assembly 3411 extends only in the horizontal direction, while the side spring plate assembly 342 extends only in the vertical direction. That is, the plane on which the upper spring plate assembly 3411 lies is perpendicular to the optical axis, while the plane on which the side spring plate assembly 342 lies is parallel to the optical axis. In other words, the plane on which the upper spring plate assembly 3411 lies is perpendicular to the plane on which the side spring plate assembly 342 lies. It should be understood that, on the one hand, spring plates extending only in one direction provide greater consistency, thus avoiding assembly tolerances between different planes. On the other hand, spring plates extending only in one direction are simpler to manufacture, resulting in a higher manufacturing yield.

[0107] In one embodiment of the present application, the first side spring element 3425 and the second side spring element 3426 are disposed on opposite sides of the camera, are interconnected, and the connection between the first side spring element 3425 and the second side spring element 3426 is parallel to the optical axis. In other words, the first side spring element 3425 and the second side spring element 3426 are located on two different planes. For example, in a specific example of the present application, the first side spring element 3425 is oriented in a first direction, and the second side spring element 3426 is oriented in a second direction. When the anti-shake frame 33 is driven to move in the first direction, the first side spring element 3425 deforms and stretches; when the anti-shake frame 33 is driven to move in the second direction, the second side spring element 3426 deforms and stretches.

[0108] Specifically, when the anti-shake frame 33 is driven by the driving component 35 to move along the first direction, the first side spring unit 3425 undergoes elastic deformation in a direction perpendicular to the first plane to support the movement of the anti-shake frame 33 in the first direction; when the anti-shake frame 33 is driven by the driving component 35 to move along the second direction, the second side spring unit 3426 undergoes elastic deformation in a direction perpendicular to the second plane to support the movement of the anti-shake frame 33 in the second direction.

[0109] In another embodiment of the present application, when the anti-shake frame 33 is driven to move in a first direction, the first side spring element 3425 undergoes elastic deformation in a direction perpendicular to the first plane, and the second side spring element 3426 undergoes elastic deformation in a direction parallel to the first plane, thereby supporting the movement of the anti-shake frame 33 in the first direction. The elastic deformation degree of the first side spring element 3425 is greater than that of the second side spring element 3426.

[0110] When the anti-shake frame 33 is driven to move in the second direction, the second side spring unit 3426 elastically deforms in a direction perpendicular to the second plane, and the first side spring unit 3425 elastically deforms in a direction parallel to the second plane to support the movement of the anti-shake frame 33 in the second direction. The elastic deformation of the second side spring unit 3426 is greater than that of the first side spring unit 3425.

[0111] Furthermore, in one embodiment of the present application, Figure 10 As shown, the first side spring piece unit 3425 and the second side spring piece unit 3426 are connected as one body, which can effectively support the movement of the anti-shake frame 33 and achieve a better anti-shake effect. Specifically, in one embodiment of the present application, the first side spring piece unit 3425 and the second side spring piece unit 3426 can be an integrated structure, which is bent 90 degrees. That is, there is only one bend between the first side spring piece unit 3425 and the second side spring piece unit 3426, so that the first side spring piece unit 3425 and the second side spring piece unit 3426 are located in two adjacent different planes.

[0112] It is understandable that the more times the spring is bent, the more difficult the process of forming becomes. The surface of the spring is easily damaged during the forming process, resulting in a low process yield. Moreover, the structural performance of the spring that has been bent multiple times is unstable and it is prone to breakage, affecting the performance of the drive device 30. Furthermore, the cumulative tolerance of the spring that has been bent multiple times is large, resulting in a low yield of the spring. To solve the above problems, in the present application, each side spring component is bent only once, that is, each side spring component is bent only once to form the first side spring unit 3425 and the second side spring unit 3426. In this way, each side spring component has a tolerance only in the bent portion, and the manufacturing yield of the spring is higher. Moreover, the manufacture of each side spring component is simpler and the performance is more stable.

[0113] In one embodiment of the present application, the bending angle of the integrated side spring member can be 90° or approximately 90°, which can ensure good performance of the side spring member while preventing damage caused by excessive bending. Approximately 90° refers to the angle between the first side spring unit 3425 and the second side spring unit 3426 being between 89° and 91°.

[0114] In another embodiment of the present application, Figure 11As shown, the first side spring element 3425 and the second side spring element 3426 can be a separate structure, and the first side spring element 3425 and the second side spring element 3426 are connected to each other by bonding, welding, splicing, riveting, etc. It should be understood that, on the one hand, the structure of the separate first side spring element 3425 and the second side spring element 3426 spliced ​​together is simpler and faster to manufacture; on the other hand, the splicing method reduces the variation of the spring element structure and makes the spring element performance more stable; and on the other hand, the splicing method makes the spring element structure more complete and avoids breakage.

[0115] Specifically, the connection position of the first side elastic fragment unit 3425 and the second side elastic fragment unit 3426 has a splicing interface with openings in opposite directions, and the first side elastic fragment unit 3425 and the second side elastic fragment unit 3426 can be spliced ​​together through the two splicing interfaces. For example, one end of the first side elastic fragment unit 3425 has a first splicing interface, the opening of the first splicing interface faces the object side, and the adjacent end of the second side elastic fragment unit 3426 has a second splicing interface, the opening of the second splicing interface faces the image side, and the opening directions of the first splicing interface and the second splicing interface are opposite. The first splicing interface and the second splicing interface are spliced ​​together to connect the first side elastic fragment unit 3425 and the second side elastic fragment unit 3426 together. To increase the structural strength of the side elastic fragment components, welding can be performed at the location of the splicing interface after the first side elastic fragment unit 3425 and the second side elastic fragment unit 3426 are spliced ​​together.

[0116] Specifically, continue to refer to Figure 10 and Figure 11 The first side spring piece unit 3425 has a "Π"-shaped structure, and the first side spring piece unit 3425 includes a first fixing portion 34251, a first connecting portion 34256, and at least three bending segments extending between the first fixing portion 34251 and the first connecting portion 34256. For example, in a specific example of the present application, the first side spring piece unit 3425 includes a first fixed portion 34251, a first bending section 34252, a second bending section 34253, a third bending section 34254, a fourth bending section 34255 and a first connecting portion 34256 connected in sequence, wherein the first fixed portion 34251 is fixedly connected to the base 312, the first bending section 34252 extends from the first fixed portion 34251 along the optical axis direction toward the object side, the second bending section 34253 extends from the first bending section 34252 along the second direction, the third bending section 34254 extends from the second bending section 34253 along the optical axis direction toward the image side, and the fourth bending section 34255 extends from the third bending section 34254 along the second direction and is connected to the first connecting portion 34256.

[0117] Furthermore, the second side elastic piece unit 3426 has a "Π"-shaped structure, and includes a second fixing portion 34261, a second connecting portion 34267, and at least three extending segments extending between the second fixing portion 34261 and the second connecting portion 34267. For example, in a specific example of the present application, the second side elastic piece unit 3426 includes a second connecting portion 34267, a first extending segment 34262, a second extending segment 34263, a third extending segment 34264, a fourth extending segment 34265, and the second fixing portion 34261, which are connected in sequence. Among them, the first connecting part 34256 and the second connecting part 34267 are connected as a whole, the first extension section 34262 extends from the second connecting part 34267 along the first direction, the second extension section 34263 extends from the first extension section 34262 along the optical axis direction toward the object side, the third extension section 34264 extends from the second extension section 34263 along the first direction, the fourth extension section 34265 extends from the third extension section 34264 along the optical axis direction toward the image side and is connected to the second fixed part 34261, and the second fixed part 34261 is fixedly connected to the anti-shake frame 33.

[0118] In one embodiment of the present application, the second side spring element 3426 further includes a fifth extension 34266, which extends from the second fixing portion 34261 along the optical axis toward the object side. The fifth extension 34266 is electrically connected to the first outer profile 34111 of the upper spring element assembly 3411, thereby achieving electrical continuity between the upper spring element assembly 3411 and the side spring element assembly 342. Alternatively, the fifth extension 34266 may be merely connected to the first outer profile 34111 of the upper spring element assembly 3411 without providing electrical continuity.

[0119] The first bent section 34252 of the first side elastic piece unit 3425 and the fifth extending section 34266 of the second side elastic piece unit 3426 extend in parallel and opposite directions. Specifically, the first bent section 34252 extends along the optical axis toward the image side, while the fifth extending section 34266 extends along the optical axis toward the object side. Because the base 312 is located below the upper elastic piece assembly 3411 along the optical axis, the connection point between the base 312 and the first side elastic piece unit 3425 is lower than the connection point between the upper elastic piece assembly 3411 and the second side elastic piece unit 3426. The first bent section 34252 and the fifth extending section 34266 extend in parallel and opposite directions, enabling the first side elastic piece unit 3425 to be connected to the base 312 and the second side elastic piece unit 3426 to be connected to the upper elastic piece assembly 3411. In this way, when the focusing coil part 352 is conductive through the upper spring plate group 3411, it can be electrically connected to the embedded circuit of the upper spring plate group 3411 and the base 312 through the first side spring plate unit 3425 and the second side spring plate unit 3426 of the side spring plate component to achieve circuit conduction.

[0120] In one embodiment of the present application, the position of the first fixing portion 34251 is lower than the position of the first connecting portion 34256 .

[0121] In one embodiment of the present application, the position of the first fixing portion 34251 is lower than the position of the second fixing portion 34261 .

[0122] Furthermore, the corner between the two bent sections of the first side spring element 3425 can be rounded, and the corner between the two extended sections of the second side spring element 3426 can be rounded. This can increase the ductility of the first side spring element 3425 and the second side spring element 3426, and effectively improve the bending resistance of the first side spring element 3425 and the second side spring element 3426, thereby reducing the possibility of spring element breakage due to stress concentration.

[0123] It should be understood that in the present application, the four side elastic sheet components may have the same structure, or the four side elastic sheet components may have different structures, and the present application does not impose any limitation on this.

[0124] Reference Figure 1 and Figure 2 As shown, in one embodiment of the present application, the magnet portion 351, the focus coil portion 352, and the anti-shake coil portion 353 form the drive assembly 35 of the drive device 30. The drive assembly 35 is capable of driving the focus carrier 32 and the anti-shake frame 33 to move. The magnet portion 351 is disposed on the anti-shake frame 33, the focus coil portion 352 is disposed on the focus carrier 32 and is arranged horizontally opposite to the magnet portion 351, and the anti-shake coil portion 353 is disposed on the base 312 of the fixed portion 31 and is arranged opposite to the magnet portion 351 along the optical axis. In a specific example of the present application, the magnet portion 351 is fixed to the anti-shake frame 33, the focus coil portion 352 is fixed to the side of the focus carrier 32, and the anti-shake coil portion 353 is fixed to the top surface of the base 312.

[0125] It can be understood that in the present application, the focusing coil portion 352 can be a hollow surrounding coil, that is, the focusing coil portion 352 is a single coil, which is arranged in a surrounding manner on the side wall of the focusing carrier 32; the focusing coil portion 352 can also be a hollow planar coil, that is, the number of focusing coil portions 352 is at least one, which is arranged in a planar attachment manner on the side wall of the focusing carrier 32.

[0126] Furthermore, the focus coil portion 352 is disposed in the focus coil mounting groove 322 so that the focus coil portion 352 does not protrude from the side wall of the carrier body 321, thereby avoiding an increase in the lateral size of the driving device 30.

[0127] When the magnet part 351 is placed in the magnet mounting groove 332, the side of the magnet part 351 facing the focus coil part 352 is exposed and is not covered by the anti-shake frame 33, so that the distance between the focus coil part 352 and the magnet part 351 can be designed to be smaller, so as to reduce the lateral dimension (horizontal dimension) of the driving device 30; the bottom surface of the magnet part 351 facing the anti-shake coil part 353 is exposed, so that the distance between the anti-shake coil part 353 and the magnet part 351 can be designed to be smaller, so as to reduce the height dimension (dimension in the optical axis direction) of the driving device 30.

[0128] The focusing coil portion 352 generates a magnetic field under current excitation, which interacts with the magnetic field of the magnet portion 351, and then the focusing coil portion 352 is driven, and the focusing coil portion 352 moves along the optical axis, and the focusing carrier 32 moves with the focusing coil portion 352, thereby realizing the focusing function; the anti-shake coil portion 353 generates a magnetic field under current excitation, which interacts with the magnetic field of the magnet portion 351, and then the magnet portion 351 is driven, and the magnet portion 351 moves in the first direction and / or the second direction, the anti-shake frame 33 moves with the magnet portion 351, and the focusing carrier 32 arranged on the anti-shake frame 33 moves with the anti-shake frame 33, thereby realizing the optical anti-shake function.

[0129] In the embodiment of the present application, the magnet portion 351 is reused. The magnet portion 351 is used to interact with the focus coil portion 352 in the process of realizing the focusing function, and is also used to interact with the anti-shake coil portion 353 in the process of realizing the anti-shake function, so that the structural design of the driving device 30 is intensive and miniaturized.

[0130] like Figures 2 to 6 As shown, in one embodiment of the present application, the magnetic portion 351 includes a first magnet 3511, a second magnet 3512, a third magnet 3513 and a fourth magnet 3514 arranged in sequence in a counterclockwise direction, and the first magnet 3511, the second magnet 3512, the third magnet 3513 and the fourth magnet 3514 are respectively arranged on the four sides of the anti-shake frame 33.

[0131] The anti-shake coil part 353 includes a first anti-shake coil 3531, a second anti-shake coil 3532, a third anti-shake coil 3533 and a fourth anti-shake coil 3534 arranged in counterclockwise order. The first anti-shake coil 3531, the second anti-shake coil 3532, the third anti-shake coil 3533 and the fourth anti-shake coil 3534 are respectively arranged on the four sides of the base 312, so that the first anti-shake coil 3531 is arranged opposite to the first magnet 3511 in the height direction, the second anti-shake coil 3532 is arranged opposite to the second magnet 3512 in the height direction, the third anti-shake coil 3533 is arranged opposite to the third magnet 3513 in the height direction, and the fourth anti-shake coil 3534 is arranged opposite to the fourth magnet 3514 in the height direction.

[0132] When the anti-shake frame 33 is driven to move horizontally in a first direction, the first magnet 3511 interacts with the first anti-shake coil 3531, and the third magnet 3513 interacts with the third anti-shake coil 3533, generating a driving force in the first direction. When the anti-shake frame 33 is driven to move horizontally in a second direction, the second magnet 3512 interacts with the second anti-shake coil 3532, and the fourth magnet 3514 interacts with the fourth anti-shake coil 3534, generating a driving force in the second direction. In this application, the lengths of the first magnet 3511 and the third magnet 3513 are parallel to the second direction, while the lengths of the second magnet 3512 and the fourth magnet 3514 are parallel to the first direction.

[0133] like Figure 12 As shown, in one embodiment of the present application, a conductive portion 3124 is provided in the base 312, and the conductive portion 3124 is embedded in the base 312 by, for example, insert molding, and can be electrically connected to the anti-shake coil portion 353 and the focus coil portion 352. In this way, the anti-shake coil portion 353 and the focus coil portion 352 can be centrally connected to the conductive portion 3124 of the base 312, which facilitates the circuit structure of the driving device 30. Furthermore, only a portion of the conductive portion 3124 is wrapped by the base 312, and the portion of the conductive portion 3124 extending toward the image side and protruding from the base 312 forms a plurality of pins 31243, which are used to electrically connect to the chip circuit board 22 of the photosensitive component 20.

[0134] The conductive portion 3124 includes multiple first conductive members 31241 extending horizontally, and multiple second conductive members 31242 extending vertically. The second conductive members 31242 extend vertically from the plane of the first conductive members 31241 in a direction opposite to the multiple pins 31243. The first conductive members 31241 form multiple solder pads on the exposed portion of the top surface of the base 312, electrically connected to the anti-shake coil portion 353. The multiple second conductive members 31242 form multiple solder pads on the exposed portion of the sidewall of the base 312, electrically connected to the first fixing portion 34251 of the first side spring element 3425.

[0135] As previously described, the focus coil 352 is wound around the winding pins 323 of the focus carrier 32 at both ends. Along the optical axis, the first inner profile 34112 of the upper spring element assembly 3411 overlaps the winding pins 323 and contacts the focus coil 352 wound around the winding pins 323, thereby electrically connecting the upper spring element assembly 3411 to the focus coil 352. Specifically, two of the four upper spring element components located at opposite corners contact the focus coil 352. For example, the first inner profile 34112 of the first upper spring element assembly 34114 covers one winding pin 323 and contacts the focus coil 352 wound around the winding pin 323. The first inner profile 34112 of the third upper spring element assembly 34116 covers another winding pin 323 and contacts the focus coil 352 wound around that winding pin 323.

[0136] That is to say, in the present application, only two of the four upper spring pieces are electrically connected to the focus coil portion 352 , and the other two of the four upper spring pieces are not electrically connected to the focus coil portion 352 .

[0137] Furthermore, two of the four side spring elements are electrically connected to the conductive portion 3124 of the base 312 and the upper spring element assembly 3411, respectively. This means that the focus coil 352 is electrically connected to the conductive portion 3124 of the base 312 via the side spring element assembly 342. It should be understood that, in this application, both the focus coil 352 and the image stabilization coil 353 are electrically connected to the conductive portion 3124 of the base 312 and are electrically connected to the chip circuit board 22 via the conductive portion 3124 of the base 312, simplifying the conductive structure.

[0138] Specifically, the first side spring element 3425 of the first side spring element 3421 is electrically connected to the second conductive element 31242 of the conductive portion 3124 of the base 312, and the second side spring element 3426 of the first side spring element 3421 is electrically connected to the first outer profile 34111 of the first upper spring element 34114. The first side spring element 3425 of the third side spring element 3423 is electrically connected to the second conductive element 31242 of the conductive portion 3124 of the base 312, and the second side spring element 3426 of the third side spring element 3423 is electrically connected to the first outer profile 34111 of the third upper spring element 34116. In this way, electrical conduction is achieved between the upper spring element assembly 3411 and the side spring element assembly 342.

[0139] The driving device 30 further comprises a magnetic conducting member (not shown) arranged between the magnet part 351 and the anti-shake frame 33, for enhancing the magnetic field strength of the magnet part 351 and avoiding the magnetic field of the magnet part 351 from overflowing. In one specific example of the present application, the magnetic conducting member is fixed in the magnet mounting groove 332 of the anti-shake frame 33 by means of adhesion or the like; in another specific example of the present application, the magnetic conducting member is embedded in the frame main body 331 of the anti-shake frame 33 by means of insert molding or the like. It can be understood that, in the present application, the magnetic conducting member can not contain magnetism, for example, the magnetic conducting member can be made of ferrite, or the magnetic conducting member itself can be a permanent magnet, which is not limited in the present application.

[0140] In one embodiment of the present application, the driving device 30 further comprises a position sensing part 36, and the position sensing element can be a Hall element, a driving IC or a TMR. The position sensing part 36 comprises a first position sensing element 361 and a second position sensing element 362. The first position sensing element 361 and the second position sensing element 362 are embedded in the base 312 and electrically connected to the conductive part 3124 of the base 312.

[0141] The first position sensing element 361 and the second position sensing element 362 are respectively located on two adjacent sides of the base 312. The first position sensing element 361 is arranged opposite to the first magnet 3511 (or the third magnet 3513) in the height direction, for sensing the magnetic field strength of the first magnet 3511 (or the third magnet 3513) and determining the position of the anti-shake frame 33. The second position sensing element 362 is arranged opposite to the second magnet 3512 (or the fourth magnet 3514) in the height direction, for sensing the magnetic field strength of the second magnet 3512 (or the fourth magnet 3514) and determining the position of the anti-shake frame 33.

[0142] The above describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A driving device, characterized in that: include: An anti-shake frame, configured to couple with an optical element, wherein the optical element defines an optical axis, the anti-shake frame comprising a first surface and a second surface adjacent to each other; a base, the anti-shake frame being movably disposed on the base; a side elastic member connected to the anti-shake frame on the first surface, the side elastic member bends and extends from the first surface to the second surface, and is connected to the base on the second surface, wherein the side elastic member is parallel to the optical axis at the connection between the first surface and the second surface; as well as A driving assembly is configured to drive the anti-shake frame to move.

2. The driving device according to claim 1, characterized in that The side spring piece component includes a first side spring piece unit and a second side spring piece unit, the first side spring piece unit is connected to the base on the second surface, and the second side spring piece unit is connected to the anti-shake frame on the first surface. The first side spring piece unit and the second side spring piece unit are arranged on opposite sides, and the first side spring piece unit and the second side spring piece unit are connected to each other. The connection position of the first side spring piece unit and the second side spring piece unit is parallel to the optical axis direction.

3. The driving device according to claim 2, characterized in that The first side spring sheet unit faces a first direction, and the second side spring sheet unit faces a second direction. When the anti-shake frame is driven by the driving component to move along the first direction, the first side spring sheet unit is deformed and performs a stretching movement; when the anti-shake frame is driven by the driving component to move along the second direction, the second side spring sheet unit is deformed and performs a stretching movement, wherein the first direction is perpendicular to the second direction.

4. The driving device according to claim 3, characterized in that The first side elastic sheet unit and the second side elastic sheet unit are an integrated structure, and there is only one bend between the first side elastic sheet unit and the second side elastic sheet unit, so that the first side elastic sheet unit and the second side elastic sheet unit are located in two adjacent different planes.

5. The driving device according to claim 3, characterized in that The first side elastic sheet unit and the second side elastic sheet unit are split structures, and the first side elastic sheet unit and the second side elastic sheet unit are connected together at a connection position by bonding, welding, splicing or riveting.

6. The driving device according to claim 5, characterized in that One end of the first side elastic sheet unit has a first splicing interface, and one end of the second side elastic sheet unit has a second splicing interface. The opening directions of the first splicing interface and the second splicing interface are opposite. The first splicing interface and the second splicing interface are spliced ​​together to connect the first side elastic sheet unit and the second side elastic sheet unit into one.

7. The driving device according to any one of claims 4 or 5, characterized in that: The first side spring piece unit includes a first fixing portion, a first connecting portion, and at least three bent segments extending between the first fixing portion and the first connecting portion; the second side spring piece unit includes a second fixing portion, a second connecting portion, and at least three extending segments extending between the second fixing portion and the second connecting portion; the first fixing portion is fixedly connected to the base, the second fixing portion is fixedly connected to the anti-shake frame, and the first connecting portion and the second connecting portion are connected to each other.

8. The driving device according to claim 7, characterized in that The first side spring piece unit includes the first fixing portion, the first bending section, the second bending section, the third bending section, the fourth bending section and the first connecting portion connected in sequence, wherein the first bending section extends from the first fixing portion along the optical axis toward the object side, the second bending section extends from the first bending section along the second direction, the third bending section extends from the second bending section along the optical axis toward the image side, and the fourth bending section extends from the third bending section along the second direction and is connected to the first connecting portion.

9. The driving device according to claim 8, characterized in that The second side spring piece unit includes the second connecting portion, the first extension section, the second extension section, the third extension section, the fourth extension section and the second fixing portion connected in sequence, wherein the first connecting portion and the second connecting portion are connected as a whole, the first extension section extends from the second connecting portion along the first direction, the second extension section extends from the first extension section along the optical axis toward the object side, the third extension section extends from the second extension section along the first direction, and the fourth extension section extends from the third extension section along the optical axis toward the image side and is connected to the second fixing portion.

10. The driving device according to claim 9, characterized in that The second side elastic piece unit further includes a fifth extending segment, which extends from the second fixing portion along the optical axis toward the object side, wherein the first bending segment and the fifth extending segment extend in parallel and in opposite directions.

11. The driving device according to claim 10, characterized in that: The first fixing portion is located at a position lower than the first connecting portion, and the first fixing portion is located at a position lower than the second fixing portion.

12. The driving device according to claim 11, characterized in that The corner between the two bending sections of the first side elastic piece unit is a rounded corner, and the corner between the two extending sections of the second side elastic piece unit is a rounded corner.

13. The driving device according to claim 1, characterized in that The driving device also includes a focusing carrier and a first spring element assembly, the first spring element assembly includes an upper spring element group and a lower spring element group, the upper spring element group and the lower spring element group are arranged at intervals along the optical axis direction, the upper spring element group is respectively connected to the top surface of the anti-shake frame and the top surface of the focusing carrier, the lower spring element group is respectively connected to the bottom surface of the anti-shake frame and the bottom surface of the focusing carrier to suspend the focusing carrier in the anti-shake frame, and the side spring element component is connected to the upper spring element group or the lower spring element group.

14. The driving device according to claim 13, characterized in that The lower spring plate group includes at least one extension leg, and the corner of the base includes a damping groove. Along the height direction, the extension leg overlaps with the damping groove. The damping groove is filled with damping glue, and at least one extension leg extends downward to extend into the damping glue.

15. The driving device according to claim 14, characterized in that The anti-shake frame includes a damping component, which includes a supporting portion extending in a horizontal direction and a damping portion extending in a vertical direction. The supporting portion and the damping portion are integrally connected, and the supporting portion is fixed to the anti-shake frame. The damping portion is bent and extended from the supporting portion and covers the extension leg. The damping portion and the extension leg are overlapped and extend into the damping rubber together to increase the thickness of the extension leg.

16. The driving device according to claim 13, characterized in that The base includes a damping groove filled with damping glue, the anti-shake frame includes a damping component, the damping component and the anti-shake frame are integrally formed, the damping component includes a support portion extending in a horizontal direction and a damping portion extending in a vertical direction, at least a portion of the support portion is covered by the anti-shake frame, at least a portion of the damping portion is covered by the anti-shake frame, and at least a portion of the damping portion is exposed to the outside of the anti-shake frame and extends downward to extend into the damping glue.

17. The driving device according to claim 13, characterized in that The driving component includes a focusing coil part, a magnet part and an anti-shake coil part, the focusing coil part is arranged on the focusing carrier, the magnet part is arranged on the anti-shake frame, and the anti-shake coil part is arranged on the base, the focusing coil part and the magnet part are arranged opposite to each other in the horizontal direction, and the anti-shake coil part and the magnet part are arranged opposite to each other in the height direction, the focusing coil part and the magnet part interact to drive the focusing carrier to move along the optical axis direction, and the anti-shake coil part and the magnet part interact to drive the anti-shake frame to move in the direction perpendicular to the optical axis.

18. A camera module, characterized in that: include: Optical lens; A photosensitive component, wherein the optical lens is located on a light-sensing path of the photosensitive component and is used to receive light emitted by the optical lens for imaging; The driving device according to any one of claims 1 to 17, wherein: The driving device is suitable for driving the optical lens to move.

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