Driving device and camera module

Abstract

The invention discloses a driving device and a camera module, and the driving device comprises an anti-vibration frame which is used for being coupled with an optical element, the optical element defines an optical axis, and the anti-vibration frame comprises a first surface and a second surface which are adjacent to each other; the anti-shake frame is movably arranged on the base; the side elastic piece component comprises at least one group of first side elastic piece unit and second side elastic piece unit, the first side elastic piece unit is connected with the base on the second surface, the second side elastic piece unit is connected with the anti-shake frame on the first surface, and a splicing port is formed in the connecting position of the first side elastic piece unit and the second side elastic piece unit; the first side elastic piece unit and the second side elastic piece unit are suitable for being connected into a whole through the splicing opening. And the driving assembly is configured to drive the anti-shake 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 the shooting process, it is easy to be shaken by external forces, such as hand-held, vehicle movement, and external environmental factors, which can cause the device to shake, resulting in unclear imaging or blurred images. The common shake compensation system on mobile phones on the market uses lens translation to compensate for the optical path offset problem. In this compensation mechanism, the active part is suspended and translated by a spring wire to achieve optical path compensation. However, the assembly process of the spring wire is complicated and it is easy to break during use, resulting in problems such as the motor not working or the compensation effect being poor.

[0003] Therefore, an excellent driving device and camera module are expected to meet consumers' demands 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, which 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, used for coupling with an optical element, wherein the optical element defines an optical axis, and the anti-shake frame comprises a first surface and a second surface adjacent to each other;

[0007] A base, wherein the anti-shake frame is movably arranged on the base;

[0008] A side elastic sheet component, the side elastic sheet component comprising at least one group of a first side elastic sheet unit and a second side elastic sheet unit, the first side elastic sheet unit being connected to the base at the second surface, and the second side elastic sheet unit being connected to the anti-shake frame at the first surface, wherein a splicing interface is provided at a connection position between the first side elastic sheet unit and the second side elastic sheet unit, and the first side elastic sheet unit and the second side elastic sheet unit are suitable for being connected as a whole through the splicing interface; and

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

[0010] In some embodiments, one end of the first side spring sheet unit has a first splicing interface, and one end of the second side spring sheet 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 suitable for splicing with each other; the first splicing interface and the second splicing interface are suitable for being reinforced by welding after splicing.

[0011] In some embodiments, the first side spring sheet unit and the second side spring sheet unit are arranged on opposite sides, and the connection position of the first side spring sheet unit and the second side spring sheet unit is parallel to the optical axis direction; the first side spring sheet unit faces the first direction, and the second side spring sheet unit faces the second direction, and 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 stretches; 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 stretches, wherein the first direction is perpendicular to the second direction.

[0012] In some embodiments, the first side spring sheet unit includes a first fixing portion, a first connecting portion, and at least three bending sections extending between the first fixing portion and the first connecting portion, the second side spring sheet unit includes a second fixing portion, a second connecting portion, and at least three extending sections 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.

[0013] In some embodiments, the first side spring piece unit includes the first fixed portion, a first bending section, a second bending section, a third bending section, a 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 direction 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 direction 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.

[0014] In some embodiments, the second side spring piece unit includes the second connecting portion, a first extension segment, a second extension segment, a third extension segment, a fourth extension segment and the second fixed portion which are connected in sequence, wherein the first connecting portion and the second connecting portion are connected as a whole, the first extension segment extends from the second connecting portion along the first direction, the second extension segment extends from the first extension segment along the optical axis direction toward the object side direction, the third extension segment extends from the second extension segment along the first direction, and the fourth extension segment extends from the third extension segment along the optical axis direction toward the image side direction and is connected to the second fixed portion.

[0015] In some embodiments, the second side elastic sheet unit further includes a fifth extension segment, which extends from the second fixing portion along the optical axis direction 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.

[0016] In some embodiments, the driving device also includes a focusing carrier and a first spring sheet assembly, the first spring sheet assembly includes an upper spring sheet group and a lower spring sheet group, the upper spring sheet group and the lower spring sheet group are arranged at intervals along the optical axis direction, the upper spring sheet group is respectively connected to the top surface of the anti-shake frame and the top surface of the focusing carrier, the lower spring sheet 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 sheet component is connected to the upper spring sheet group or the lower spring sheet group.

[0017] In some embodiments, the upper spring plate group includes a first outer profile fixed to the anti-shake frame, a first inner profile fixed to the focusing carrier, and a first deformation portion integrally connecting the first outer profile and the first inner profile, wherein the fifth extension section is suitable for being electrically connected to the first outer profile of the upper spring plate group.

[0018] According to another aspect of the present application, a camera module is provided, including:

[0019] Optical lens;

[0020] A photosensitive component, wherein the optical lens is located on a photosensitive path of the photosensitive component, and the photosensitive component is used to receive light emitted by the optical lens for imaging;

[0021] A driving device, wherein the driving device is suitable for driving the optical lens to move.

[0022] Other embodiments and features are partially described in the following description, 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 can be achieved by reference to the remainder of the specification and drawings which constitute a part of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a cross-sectional schematic diagram of a camera module;

[0024] Figure 2 is an exploded schematic diagram of a driving device according to an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the three-dimensional structure of a driving device according to an embodiment of the present application;

[0026] Figure 4 is an exploded schematic diagram of a focus carrier, an anti-shake frame and a base according to an embodiment of the present application;

[0027] Figure 5 It is a schematic structural diagram of an upper spring piece group, a focus carrier and an anti-shake frame according to an embodiment of the present application;

[0028] Figure 6 It is a schematic structural diagram of a lower spring piece group, a focus carrier and an anti-shake frame according to an embodiment of the present application;

[0029] Fig. 7A is a schematic cross-sectional view of a driving device according to an embodiment of the present application;

[0030] Figure 7B yes Fig. 7A An enlarged schematic diagram of the circular area in FIG.

[0031] Fig. 8A is a cross-sectional schematic diagram of a driving device according to another embodiment of the present application;

[0032] Figure 8B yes Fig. 8A An enlarged schematic diagram of the circular area in FIG.

[0033] Fig. 9 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;

[0034] Fig.10 is a schematic structural diagram of an integrated side spring piece component according to an embodiment of the present application;

[0035] Fig.11 is a schematic structural diagram of a split side spring sheet component according to an embodiment of the present application;

[0036] Fig.12 is an exploded schematic diagram of a base and a side shrapnel assembly according to an embodiment of the present application; DETAILED DESCRIPTION

[0037] 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.

[0038] The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.

[0039] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0040] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0041] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0042] It should be noted that, as used in this application, the terms "substantially", "approximately" and similar terms are used as terms to express approximation rather than as terms to express degree, and are intended to account for the inherent deviations in measurements or calculations that would be recognized by a person of ordinary skill in the art.

[0043] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, a contact connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] "Configured to" various units, circuits, or other components may be described or recited as "configured to" perform one or more tasks. In such contexts, "configured to" is used to imply a structure (e.g., circuitry) by indicating that the unit / circuit / component includes the structure that performs the one or more tasks during operation. In addition, "configured to" may include general structures (e.g., general circuitry) manipulated by software and / or firmware to operate in a manner that is capable of performing the one or more tasks to be solved. "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 one or more tasks.

[0045] The terms used in the description herein are only for describing specific embodiments and are not intended to be limiting. As used in the specification and the appended claims, the singular forms of "one", "a kind of" and "the" are intended to also cover the plural forms, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" used herein refers to and covers any and all possible combinations of one or more items in the items listed in association. It will also be understood that the terms "including" 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 grouping.

[0046] 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 phrases "if it is determined that" or "if [a stated condition or event] is detected" may be interpreted to mean "upon determining that" or "in response to determining that" or "upon detecting [a stated condition or event]" or "in response to detecting [a stated condition or event]," depending on the context.

[0047] 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, focus and other functions.

[0048] 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, the optical axis of the optical lens 10 is also the optical axis of the plurality of optical lenses, and the photosensitive component 20 is arranged opposite to the optical lens 10 along the optical axis direction. For ease of description, the side of the camera module 1 facing the object is the object side, the side of the camera module 1 facing the photosensitive component 20 is 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.

[0049] 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, and the optical lens 10 is suitable for being driven by the driving device 30 to achieve functions such as anti-shake and focusing.

[0050] The photosensitive component 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 storage chips.

[0051] 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, and 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.

[0052] The filter assembly 23 also includes a filter element bracket 232, and 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, and 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.

[0053] 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.

[0054] Among them, the filter element bracket 232 can be prefabricated and then fixed to the chip circuit board 22 by, for example, bonding with an adhesive medium, or it can 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 to this.

[0055] 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, the Y-axis and the 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.

[0056] In one embodiment of the present application, Figure 2 and Figure 3 As shown, the driving device 30 includes a fixed part 31, a focus carrier 32, an anti-shake frame 33, a suspension part 34, a magnet part 351, a focus coil part 352 and an anti-shake coil part 353. Among them, the focus carrier 32 is used to carry an optical element, and the optical element 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 arranged on the anti-shake frame 33 through the suspension part 34, and the anti-shake frame 33 is movably arranged on the fixed part 31 through the suspension part 34. The magnet part 351 interacts with the focus coil part 352 to drive the focus carrier 32 to move along the optical axis direction to achieve the optical focus function; the magnet part 351 interacts with the anti-shake coil part 353 to drive the anti-shake frame 33 to move along the direction perpendicular to the optical axis to achieve the optical anti-shake function.

[0057] Specifically, in one embodiment of the present application, Figures 2 to 4 As shown, the fixed 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 fixed part 31 to accommodate components such as the focus carrier 32, the anti-shake frame 33, the suspension part 34, the magnet part 351, the focus 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 off when impacted.

[0058] Further, in one embodiment of the present application, the base 312 includes a base body 3121 and an anti-shake coil positioning member 3122 disposed on the base body 3121, wherein the anti-shake coil positioning member 3122 is disposed on the top surface of the base body 3121, and the anti-shake coil portion 353 is fixed to the anti-shake coil positioning member 3122 to fix the anti-shake coil portion 353 to the base body 3121. The anti-shake coil positioning member 3122 can be implemented as a protrusion extending from the top surface of the base body 3121 in the height direction, and the anti-shake coil portion 353 is fixed to the circumferential side of the protrusion.

[0059] Among them, the housing 311 and the base 312 of the fixed part 31 are both stators, that is, when the driving device 30 drives the optical lens 10 to move, the fixed part 31 remains relatively fixed, and other components move relative to the fixed part 31. In one embodiment of the present application, the photosensitive component 20 is fixed to the base 312 of the fixed part 31, and then the photosensitive component 20 also becomes a relatively fixed part. The housing 311 and the base 312 each have a light hole, so that the imaging light can be incident on the optical lens 10 fixed to the driving device 30, and reach the photosensitive component 20 after the optical lens 10 is emitted.

[0060] In one embodiment of the present application, the focusing carrier 32 includes a carrier body 321 and a focusing coil mounting groove 322, wherein the optical lens 10 is fixed to the carrier body 321, 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 with an adhesive medium, or can be fixed to the focusing carrier 32 by integrally forming the lens barrel of the optical lens 10 and the focusing carrier 32. The present application is not limited thereto.

[0061] Further, the focus coil installation 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 focus coil installation groove 322, and the focus coil portion 352 is disposed in the focus coil installation groove 322. It should be understood that the focus coil portion 352 can be directly wound in the focus coil installation groove 322, or can be prefabricated and placed in the focus coil installation groove 322, and the present application does not limit this.

[0062] The focus carrier 32 further includes 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 in a direction away from the optical axis. When the focus coil portion 352 is implemented as a coil surrounding the carrier body 321, the two ends of the focus coil portion 352 are respectively wound around the pair of winding posts 323, so that the circuit of the focus coil portion 352 is conductive.

[0063] The focus carrier 32 is movably disposed on the inner side of the anti-shake frame 33. The anti-shake frame 33 is movably disposed between the focus carrier 32 and the fixed part 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 installation groove 332. The frame body 331 has a receiving cavity. The focus carrier 32 is received in the receiving cavity of the anti-shake frame 33. The magnet installation groove 332 is located on the side wall of the frame body 331. The inner side wall of the frame body 331 has a magnet installation groove 332. The magnet installation groove 332 has an opening facing the focus coil part 352 and the anti-shake coil part 353, so that when the magnet part 351 is placed in the magnet installation groove 332, the magnet part 351 can be arranged opposite to the focus coil part 352 and the anti-shake coil part 353 at the same time.

[0064] In one embodiment of the present application, the anti-shake frame 33 is used to couple an optical element, and the optical element defines an optical axis; for example, the optical element can be implemented as an optical lens.

[0065] In one embodiment of the present application, the anti-shake frame 33 includes a top surface 3305, a bottom surface 3306, and a side surface connected to the top surface 3305 and the bottom surface 3306, wherein the side surface includes 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.

[0066] It can be 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 can be driven by the anti-shake frame 33 to move together with the anti-shake frame 33. Further, the optical lens 10 is driven to move by driving the focus carrier 32 and / or the anti-shake frame 33 to move, so as to achieve the focusing and / or anti-shake function. 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 direction 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 direction to achieve the optical anti-shake function.

[0067] like Figures 3 to 6As shown, in one embodiment of the present application, the suspension part 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 part 34 includes a first spring component 341 and a side spring component 342, the first spring component 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 by the first spring component 341. The first spring sheet assembly 341 includes an upper spring sheet group 3411 and a lower spring sheet group 3412, the upper spring sheet group 3411 is arranged on the top surface of the anti-shake frame 33, the lower spring sheet group 3412 is arranged on the bottom surface of the anti-shake frame 33, and the side spring sheet assembly 342 is arranged on the side of the anti-shake frame 33, wherein the side spring sheet assembly 342 can be connected to the upper spring sheet group 3411 or the lower spring sheet group 3412. The upper spring plate group 3411 and the lower spring plate group 3412 are respectively connected to the focus carrier 32 and the anti-shake frame 33, and are used to support the movement of the focus carrier 32 along the optical axis direction. The focus carrier 32 is suspended in the anti-shake frame 33 by means of 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 means of the side spring plate assembly 342, and 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).

[0068] 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 focus carrier 32, and the lower spring plate group 3412 is arranged on the image side of the focus carrier 32, so that the focus carrier 32 can be resettably suspended in the anti-shake frame 33. The focus 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.

[0069] The upper spring sheet group 3411 and the lower spring sheet group 3412 are in a thin sheet structure. The upper spring sheet group 3411 is connected to the top surface of the anti-shake frame 33 and the top surface of the focus carrier 32, respectively. The lower spring sheet group 3412 is connected to the bottom surface of the anti-shake frame 33 and the bottom surface of the focus carrier 32, respectively, to support and limit the movement of the focus carrier 32, which not only helps to improve the structural stability of the driving device 30, but also enables the focus carrier 32 to move within a certain range of travel. In this way, the focus carrier 32 is clamped between the upper spring sheet group 3411 and the lower spring sheet group 3412, so that the focus carrier 32 is suspended in the anti-shake frame 33.

[0070] Specifically, in one embodiment of the present application, the upper spring piece group 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 deformation portion 34113 integrally connecting the first outer profile 34111 and the first inner profile 34112. The first deformation portion 34113 extends from the first outer profile 34111 to the first inner profile 34112 in a bent manner, so as to reserve enough space for the movement of the focus carrier 32, which can not only provide a guarantee for the movement stroke of the focus carrier 32, but also reduce the driving resistance of the focus carrier 32, and improve the optical focus sensitivity of the driving device 30.

[0071] 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.

[0072] Specifically, in one embodiment of the present application, the lower spring piece group 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 deformation portion 34123 integrally connecting the second outer profile 34121 and the second inner profile 34122. The second deformation portion 34123 extends from the second outer profile 34121 to the second inner profile 34122 in a bent manner, so as to reserve enough space for the movement of the focus carrier 32, which can not only provide a guarantee for the movement stroke of the focus carrier 32, but also reduce the driving resistance of the focus carrier 32, and improve the optical focus sensitivity of the driving device 30.

[0073] In a specific example of the present application, the second deformation 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 deformation 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 deformation portion 34123 is implemented as a single string, and the two ends of the single string are respectively connected to the second outer profile 34121 and the second inner profile 34122.

[0074] Further, the top surface of the focusing carrier 32 has a carrier top surface concave portion 3211, which is formed by being recessed downward from the top surface of the carrier body 321, and the bottom surface of the focusing carrier 32 has a carrier bottom surface concave portion 3212, which is formed by being recessed upward from the bottom surface of the carrier body 321. Along the optical axis direction, at least a portion of the first deformable portion 34113 overlaps with the carrier top surface concave portion 3211 of the focusing carrier 32, and at least a portion of the second deformable portion 34123 overlaps with the carrier bottom surface concave portion 3212 of the focusing carrier 32, so as to avoid collision with the first deformable portion 34113 and the second deformable portion 34123 when the focusing carrier 32 moves along the optical axis direction, thereby preventing damage to the upper spring sheet group 3411 and the lower spring sheet group 3412.

[0075] Furthermore, the top surface of the anti-shake frame 33 has a frame top surface concave portion 3311, which is formed by being recessed downward from the top surface of the frame body 331, and the bottom surface of the anti-shake frame 33 has a frame bottom surface concave portion 3312, which is formed by being recessed upward from the bottom surface of the frame body 331. Along the optical axis direction, at least a portion of the first deformable portion 34113 overlaps with the frame top surface concave portion 3311 of the anti-shake frame 33, and at least a portion of the second deformable portion 34123 overlaps with the frame bottom surface concave portion 3312 of the anti-shake frame 33, so as to avoid the first deformable portion 34113 and the second deformable portion 34123 from colliding with the anti-shake frame 33 when the focus carrier 32 moves along the optical axis direction to cause the first deformable portion 34113 and the second deformable portion 34123 to be deformed, thereby causing damage to the upper spring sheet group 3411 and the lower spring sheet group 3412.

[0076] The first inner profile 34112 and the first outer profile 34111 of the upper spring sheet group 3411 may be fixedly attached to the focus carrier 32 and the anti-shake frame 33 by means of, but not limited to, bonding or hot riveting; the second inner profile 34122 and the second outer profile 34121 of the lower spring sheet group 3412 may be fixedly attached to the focus carrier 32 and the anti-shake frame 33 by means of, but not limited to, bonding or hot riveting. When the focus carrier 32 is driven to move along the optical axis, the upper spring sheet group 3411 and the lower spring sheet group 3412 are deformed to accumulate elastic force, and when the focus carrier 32 stops being driven, the elastic force accumulated by the upper spring sheet group 3411 and the lower spring sheet group 3412 is released, thereby driving the focus carrier 32 to return to its original position.

[0077] Further, in one embodiment of the present application, the upper spring sheet group 3411 may have a split structure, the lower spring sheet group 3412 may have an integrated structure, and the upper spring sheet group 3411 may be used to realize the circuit conduction of the drive device 30; the lower spring sheet group 3412 may always maintain good consistency during the installation process, so that the entire plane of the lower spring sheet group 3412 produces less installation tolerance. In another embodiment of the present application, the upper spring sheet group 3411 has an integrated structure, the lower spring sheet group 3412 has a split structure, and the lower spring sheet group 3412 may be used to realize the circuit conduction of the drive device 30. Of course, in another embodiment of the present application, the upper spring sheet group 3411 has a split structure, the lower spring sheet group 3412 has a split structure, and both the upper spring sheet group 3411 and the lower spring sheet group 3412 may be used to realize the circuit conduction of the drive device 30.

[0078] like Figures 3 to 5 As shown, in one embodiment of the present application, the upper spring sheet group 3411 is a split structure, which includes a first upper spring sheet component 34114, a second upper spring sheet component 34115, a third upper spring sheet component 34116 and a fourth upper spring sheet component 34117 which are arranged at the four corners of the focus carrier 32 and the anti-shake frame 33. Among them, the two upper spring sheet components located at the diagonal corners are arranged rotationally symmetrically, for example, the first upper spring sheet component 34114 and the third upper spring sheet component 34116 are arranged rotationally symmetrically, and the second upper spring sheet component 34115 and the fourth upper spring sheet component 34117 are arranged rotationally symmetrically, when the focus carrier 32 moves along the Z-axis direction, it is possible to suppress the focus carrier 32 from rotating around the Z-axis.

[0079] In one embodiment of the present application, Figure 6 As shown, the lower spring piece group 3412 is an integrated structure, which has a common circular second inner profile 34122, four second outer profiles 34121, and four second deformation parts 34123 respectively connecting the second inner profile 34122 and the second outer profile 34121. The lower spring piece group 3412 is a central symmetrical structure, and when the focus carrier 32 moves along the Z-axis direction, the symmetrical lower spring piece group 3412 can suppress the focus carrier 32 from rotating around the Z-axis.

[0080] Further references Figures 6 to 7BIn one embodiment of the present application, the lower spring sheet group 3412 includes at least one extension leg 34124, the corner of the base 312 includes a damping groove 3123, along the height direction, the extension leg 34124 overlaps with the damping groove 3123, the damping groove 3123 is filled with damping glue 3125, and at least one extension leg 34124 extends downward to extend into the damping glue 3125. Specifically, the second outer profile 34121 of the lower spring sheet group 3412 is bent and extended 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 plate group 3412 can extend into the damping glue 3125. On the one hand, the movement of the anti-shake frame 33 can be buffered, and on the other hand, vibration can be isolated to eliminate the shaking of the anti-shake frame 33 caused by vibration.

[0081] Furthermore, the extension leg 34124 of the lower spring sheet group 3412 is a sheet-like cubic structure with a certain thickness. It should be understood that if the extension leg 34124 is implemented as a thinner sharp-angle structure, when the anti-shake frame 33 moves, the extension leg 34124 will move in the damping glue 3125, and the extension leg 34124 may split the damping glue 3125, affecting the damping effect. Moreover, after the damping glue 3125 is split, the extension leg 34124 and the damping glue 3125 rub against each other, which may cause dirt, affecting the imaging effect.

[0082] In one embodiment of the present application, a damping member 333 is further included on the anti-shake frame 33, and the damping member 333 includes a support portion 3331 extending in the horizontal direction and a damping portion 3332 extending in the vertical direction, the support portion 3331 and the damping portion 3332 are integrally connected, the support portion 3331 is fixed to the anti-shake frame 33, the damping portion 3332 is bent and extended from the support portion 3331 and covers the extension leg 34124, the damping portion 3332 and the extension leg 34124 are overlapped and extend into the damping glue 3125 together to increase the thickness of the extension leg 34124. That is, the support portion 3331 extends in the horizontal direction, and the damping member 333 is fixed to the anti-shake frame 33 through the support portion 3331, and the damping portion 3332 is bent from the support portion 3331 and extends along the optical axis direction to extend into the damping glue 3125.

[0083] 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 sheet group 3412, and the damping portion 3332 overlaps with the extension leg 34124 and extends into the damping glue 3125 to increase the thickness of the extension leg 34124 and avoid the damping glue 3125 being split due to the extension leg 34124 being too thin. In another embodiment of the present application, the support portion 3331 is fixed to the second outer profile 34121 of the lower spring sheet group 3412, that is, the second outer profile 34121 of the lower spring sheet is fixed between the bottom surface of the anti-shake frame 33 and the top surface of the support portion 3331, and the damping portion 3332 overlaps with the extension leg 34124 and extends into the damping glue 3125 to increase the thickness of the extension leg 34124 and avoid the damping glue 3125 being split due to the extension leg 34124 being too thin.

[0084] In one embodiment of the present application, in order to make the structure of the driving device 30 simpler, the number of components in the driving device 30 can be reduced. For example, the extension leg 34124 may not be provided on the second outer profile 34121 of the lower spring sheet group 3412, and only the damping member 333 may be provided to extend into the damping rubber 3125, so that the vibration isolation function is achieved only by the damping member 333.

[0085] like FIG. 8A to FIG. 8B As shown, in one embodiment of the present application, the damping member 333 is integrally formed with the anti-shake frame 33. On the one hand, it can reduce the number of components, such as reducing the number of extension legs 34124, making the structure of the driving device 30 simpler; on the other hand, it can increase the structural strength of the anti-shake frame 33 and the damping member 333; on the other hand, the damping member 333 is integrally formed with the anti-shake frame 33 to ensure the consistency of movement, thereby achieving a better vibration isolation effect and eliminating the shaking phenomenon of the anti-shake frame 33 caused by vibration. 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 is a metal material and the anti-shake frame 33 is a resin material.

[0086] 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 in the horizontal direction inside the frame body 331. The support portion 3331 may be completely covered by the frame body 331, that is, the support portion 3331 is completely embedded in the frame body 331. Of course, the support portion 3331 may also be partially covered by the frame body 331, that is, at least a portion of the support portion 3331 is exposed outside the frame body 331.

[0087] At least a portion of the damping portion 3332 is covered by the frame body 331, and at least a portion of the damping portion 3332 is exposed outside the frame body 331. That is, 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, and at least a portion of the damping portion 3332 is exposed outside the frame body 331 and extends toward the damping groove 3123 of the base 312, and the damping groove 3123 is filled with the damping glue 3125, so that the damping portion 3332 can extend into the damping glue 3125.

[0088] 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 direction.

[0089] In a specific example of the present application, a bending structure is provided between the portion of the damping portion 3332 embedded in the frame body 331 and the portion exposed outside the frame body 331. In this way, the damping portion 3332 can be closer to the middle of the damping groove 3123, thereby preventing the damping portion 3332 from colliding with the side wall of the damping groove 3123 when the anti-shake frame 33 and the damping member 333 move together.

[0090] 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, and the extension plane of the damping portion 3332 of the damping member 333 is not parallel to the plane of the two side walls adjacent to the corner of the anti-shake frame 33, so that the contact surface between the damping portion 3332 and the damping rubber 3125 can be increased, and a better vibration reduction effect can be achieved when the anti-shake frame 33 moves. In other words, there is a certain angle between the extension plane of the damping portion 3332 and the plane of the two side walls adjacent to the corner of the anti-shake frame 33.

[0091] Of course, correspondingly, the plane where the extension leg 34124 is located is not parallel to the plane where the two side walls adjacent to the corner of the anti-shake frame 33 are located. That is, the extension leg 34124 and the damping part 3332 are set at the same position and angle, so that the extension leg 34124 and the damping part 3332 can be overlapped and the thickness of the extension leg 34124 is increased.

[0092] like Figure 3 , Figures 9 to 11As shown, in one embodiment of the present application, the side spring assembly 342 is arranged on the side of the anti-shake frame 33 to connect the anti-shake frame 33 and the base 312. Among them, 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, which not only helps to 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 structure. Compared with the spring wire that is easy to break, 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. On the other hand, the side spring assembly has better ductility and is easy to bend.

[0093] In one embodiment of the present application, the side spring sheet assembly 342 includes a side spring sheet component, which is connected to the anti-shake frame 33 on the first surface 3301, and is bent from the first surface 3301 to extend to the second surface 3302, and is connected to the base 312 on the second surface 3302, wherein the connection between the side spring sheet component and the first surface 3301 and the second surface 3302 is parallel to the optical axis direction. The place where the side spring sheet component is bent between the first surface 3301 and the second surface 3302 is called a connection.

[0094] There are four side elastic sheet components, including a first side elastic sheet component 3421, a second side elastic sheet component 3422, a third side elastic sheet component 3423, and a fourth side elastic sheet component 3424. The four side elastic sheet components are respectively arranged at the four corners of the anti-shake frame 33. Further, at least one of the four side elastic sheet components extends from the corner position of the anti-shake frame 33 toward two side walls adjacent to the corner. For example, the side elastic sheet component extends from the corner position 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 formed by being recessed from the frame body 331 toward the optical axis direction. There are four side recesses 3313 in number, so that the four side spring sheet 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 sheet components, causing damage to the side spring sheet assembly 342.

[0095] The first side elastic sheet component 3421 and the second side elastic sheet component 3422 are symmetrically arranged about the Y axis, the third side elastic sheet component 3423 and the fourth side elastic sheet component 3424 are symmetrically arranged about the Y axis, the first side elastic sheet component 3421 and the fourth side elastic sheet component 3424 are symmetrically arranged about the X axis, and the second side elastic sheet component 3422 and the third side elastic sheet component 3423 are symmetrically arranged about the X axis. In this way, the anti-shake frame 33 can be supported more stably. When the anti-shake frame 33 is driven to move along the X axis direction (first direction) and / or the Y axis direction (second direction), the first side elastic sheet component 3421, the second side elastic sheet component 3422, the third side elastic sheet component 3423, and the fourth side elastic sheet component 3424 can suppress the anti-shake frame 33 from rotating along the Z axis direction.

[0096] Further references Figures 9 to 11 The side spring piece component includes a first side spring piece unit 3425 and a second side spring piece unit 3426. The first side spring piece unit 3425 is connected to the base 312 on the second surface 3302, and the second side spring piece unit 3426 is connected to the anti-shake frame 33 on the first surface 3301. The first side spring piece unit 3425 and the second side spring piece unit 3426 are arranged on opposite sides, and the first side spring piece unit 3425 and the second side spring piece unit 3426 are connected to each other. The connection position of the first side spring piece unit 3425 and the second side spring piece unit 3426 is parallel to the optical axis direction.

[0097] The first side spring sheet unit 3425 and the second side spring sheet unit 3426 are connected to each other, and the connection position of the first side spring sheet unit 3425 and the second side spring sheet unit 3426 is located at the corner position of the anti-shake frame 33. The first side spring sheet 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 sheet 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 are perpendicular to each other, including two situations where the angle between the first plane and the second plane is 90°, and the angle between the first plane and the second plane is approximately perpendicular in the range of 89° to 91°. The situation where the first plane and the second plane are approximately perpendicular is caused by assembly tolerance or manufacturing tolerance.

[0098] Further, in one embodiment of the present application, the upper spring sheet group 3411 extends only in the horizontal direction, and the side spring sheet assembly 342 extends only in the vertical direction. That is, the plane where the upper spring sheet group 3411 is located is perpendicular to the optical axis direction, and the plane where the side spring sheet assembly 342 is located is parallel to the optical axis direction. In other words, the plane where the upper spring sheet group 3411 is located is perpendicular to the plane where the side spring sheet assembly 342 is located. It should be understood that, on the one hand, the spring sheet extending only in one direction has a higher consistency, which can avoid the assembly tolerance generated between different planes; on the other hand, the spring sheet extending only in one direction is simpler to manufacture and has a higher manufacturing yield.

[0099] In one embodiment of the present application, the first side spring sheet unit 3425 and the second side spring sheet unit 3426 are arranged on opposite sides, the first side spring sheet unit 3425 and the second side spring sheet unit 3426 are connected to each other, and the connection position of the first side spring sheet unit 3425 and the second side spring sheet unit 3426 is parallel to the optical axis direction. In other words, the first side spring sheet unit 3425 and the second side spring sheet unit 3426 are respectively located in two different planes. For example, in a specific example of the present application, the first side spring sheet unit 3425 faces the first direction, and the second side spring sheet unit 3426 faces the second direction. When the anti-shake frame 33 is driven to move along the first direction, the first side spring sheet unit 3425 is deformed and stretched; when the anti-shake frame 33 is driven to move along the second direction, the second side spring sheet unit 3426 is deformed and stretched.

[0100] 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 is elastically deformed 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 is elastically deformed in a direction perpendicular to the second plane to support the movement of the anti-shake frame 33 in the second direction.

[0101] In another embodiment of the present application, when the anti-shake frame 33 is driven to move in the first direction, the first side spring sheet unit 3425 is elastically deformed in a direction perpendicular to the first plane, and the second side spring sheet unit 3426 is elastically deformed in a direction parallel to the first plane to support the movement of the anti-shake frame 33 in the first direction. The elastic deformation degree of the first side spring sheet unit 3425 is greater than the elastic deformation degree of the second side spring sheet unit 3426.

[0102] When the anti-shake frame 33 is driven to move in the second direction, the second side spring sheet unit 3426 is elastically deformed in a direction perpendicular to the second plane, and the first side spring sheet unit 3425 is elastically deformed 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 degree of the second side spring sheet unit 3426 is greater than that of the first side spring sheet unit 3425.

[0103] Further, in one embodiment of the present application, Fig.10 As shown, the first side spring sheet unit 3425 and the second side spring sheet 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 sheet unit 3425 and the second side spring sheet unit 3426 can be an integrated structure, which is bent by 90 degrees, that is, there is only one bend between the first side spring sheet unit 3425 and the second side spring sheet unit 3426, so that the first side spring sheet unit 3425 and the second side spring sheet unit 3426 are located in two adjacent different planes.

[0104] It is understandable that the more times the spring is bent, the more difficult the process is to form. The surface of the spring is easily damaged during the forming process, and the process yield is low. Moreover, the performance of the spring structure that has been bent multiple times is unstable and is prone to breakage, which affects 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.

[0105] In one embodiment of the present application, the bending angle of the side elastic sheet component of the integrated structure can be 90° or approximately 90°, which can ensure that the side elastic sheet component has good performance and avoid damage caused by excessive bending of the side elastic sheet component. Approximately 90° means that the angle between the first side elastic sheet unit 3425 and the second side elastic sheet unit 3426 is between 89° and 91°.

[0106] In another embodiment of the present application, Fig.11As shown, the first side spring sheet unit 3425 and the second side spring sheet unit 3426 can be a split structure, and the first side spring sheet unit 3425 and the second side spring sheet unit 3426 are connected together by bonding, welding, splicing, riveting, etc. It should be understood that, on the one hand, the structure formed by splicing the split first side spring sheet unit 3425 and the second side spring sheet unit 3426 is simpler and faster to manufacture; on the other hand, the splicing molding method makes the variation of the spring sheet structure small and the performance of the spring sheet is more stable; on the other hand, the splicing molding method makes the structure of the spring sheet more complete and avoids breakage.

[0107] Specifically, the connection position of the first side spring sheet unit 3425 and the second side spring sheet unit 3426 has an opening interface with opposite opening directions, and the first side spring sheet unit 3425 and the second side spring sheet unit 3426 can be spliced ​​into one body through the two splicing interfaces. For example, one end of the first side spring sheet unit 3425 has a first splicing interface, and the opening of the first splicing interface faces the object side direction, and the adjacent end of the second side spring sheet unit 3426 has a second splicing interface, and the opening of the second splicing interface faces the image side direction, 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 spring sheet unit 3425 and the second side spring sheet unit 3426 into one body. In order to increase the structural strength of the side spring sheet component, welding can be performed at the position of the splicing interface after the first side spring sheet unit 3425 and the second side spring sheet unit 3426 are spliced.

[0108] Specifically, continue to refer to Fig.10 and Fig.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 sections 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 which are 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.

[0109] Further, the second side elastic piece unit 3426 is in a "Π"-shaped structure, and the second side elastic piece unit 3426 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 a second fixing portion 34261 connected in sequence. Among them, the first connecting portion 34256 is connected to the second connecting portion 34267 as a whole, the first extension section 34262 extends from the second connecting portion 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 portion 34261, and the second fixed portion 34261 is fixedly connected to the anti-shake frame 33.

[0110] In one embodiment of the present application, the second side elastic sheet unit 3426 further includes a fifth extension section 34266, which extends from the second fixing portion 34261 along the optical axis direction toward the object side direction, and the fifth extension section 34266 is electrically connected to the first outer profile 34111 of the upper elastic sheet group 3411 to achieve circuit conduction between the upper elastic sheet group 3411 and the side elastic sheet assembly 342. Of course, the fifth extension section 34266 and the first outer profile 34111 of the upper elastic sheet group 3411 may also be only connected but not conduct the circuit.

[0111] The first bending section 34252 of the first side elastic sheet unit 3425 and the fifth extension section 34266 of the second side elastic sheet unit 3426 extend in parallel and opposite directions. Specifically, the first bending section 34252 extends along the optical axis toward the image side, and the fifth extension section 34266 extends along the optical axis toward the object side. Since the base 312 is located below the upper elastic sheet group 3411 along the optical axis, the position where the base 312 is connected to the first side elastic sheet unit 3425 is lower than the position where the upper elastic sheet group 3411 is connected to the second side elastic sheet unit 3426. The first bending section 34252 and the fifth extension section 34266 extend in parallel and opposite directions, so that the first side elastic sheet unit 3425 is connected to the base 312, and the second side elastic sheet unit 3426 is connected to the upper elastic sheet group 3411. In this way, when the focus 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.

[0112] 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 .

[0113] 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 .

[0114] Furthermore, the corner between the two bending sections of the first side spring sheet unit 3425 can be rounded, and the corner between the two extending sections of the second side spring sheet unit 3426 can be rounded. In this way, the ductility of the first side spring sheet unit 3425 and the second side spring sheet unit 3426 can be increased on the one hand; on the other hand, the bending resistance of the first side spring sheet unit 3425 and the second side spring sheet unit 3426 can be effectively improved, and the possibility of spring sheet breakage due to stress concentration can be reduced.

[0115] 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.

[0116] Reference Figure 1 and Figure 2 As shown, in one embodiment of the present application, the magnet part 351, the focus coil part 352 and the anti-shake coil part 353 form a driving component 35 of the driving device 30, and the driving component 35 can drive the focus carrier 32 and the anti-shake frame 33 to move. The magnet part 351 is arranged on the anti-shake frame 33, the focus coil part 352 is arranged on the focus carrier 32 and is arranged opposite to the magnet part 351 in the horizontal direction, and the anti-shake coil part 353 is arranged on the base 312 of the fixed part 31 and is arranged opposite to the magnet part 351 in the optical axis direction. In a specific example of the present application, the magnet part 351 is fixed to the anti-shake frame 33, the focus coil part 352 is fixed to the side of the focus carrier 32, and the anti-shake coil part 353 is fixed to the top surface of the base 312.

[0117] 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 the focusing coil portion 352 is at least one, which is arranged in a planar attached manner on the side wall of the focusing carrier 32.

[0118] 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.

[0119] 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.

[0120] The focusing coil portion 352 generates a magnetic field under current excitation, which interacts with the magnetic field of the magnet portion 351, so that the focusing coil portion 352 is driven, 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, so that the magnet portion 351 is driven, 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.

[0121] 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 focus 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.

[0122] like Figures 2 to 6 As shown, in one embodiment of the present application, the magnet 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.

[0123] 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 which are 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 and the first magnet 3511 are arranged opposite to each other in the height direction, the second anti-shake coil 3532 and the second magnet 3512 are arranged opposite to each other in the height direction, the third anti-shake coil 3533 and the third magnet 3513 are arranged opposite to each other in the height direction, and the fourth anti-shake coil 3534 and the fourth magnet 3514 are arranged opposite to each other in the height direction.

[0124] When the anti-shake frame 33 is driven to move horizontally in the 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 to generate a driving force in the first direction; when the anti-shake frame 33 is driven to move horizontally in the 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 to generate a driving force in the second direction. In the present application, the length direction of the first magnet 3511 and the third magnet 3513 is parallel to the second direction, and the length direction of the second magnet 3512 and the fourth magnet 3514 is parallel to the first direction.

[0125] like Fig.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 is convenient for 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 be electrically connected to the chip circuit board 22 of the photosensitive component 20.

[0126] The conductive part 3124 includes a plurality of first conductive members 31241 extending in the horizontal direction, and a plurality of second conductive members 31242 extending in the vertical direction, and the second conductive members 31242 extend from the plane where the first conductive members 31241 are located in the height direction in the direction opposite to the plurality of pins 31243. The first conductive member 31241 forms a plurality of pads on the exposed portion of the top surface of the base 312, which are electrically connected to the anti-shake coil part 353. The plurality of second conductive members 31242 form a plurality of pads on the exposed portion of the side wall of the base 312, which are electrically connected to the first fixing portion 34251 of the first side spring sheet unit 3425.

[0127] As mentioned above, the two ends of the focus coil part 352 are respectively wound on the winding post 323 of the focus carrier 32. Along the optical axis direction, the first inner profile 34112 of the upper spring sheet group 3411 overlaps the winding post 323, and the first inner profile 34112 of the upper spring sheet group 3411 contacts the focus coil part 352 wound on the winding post 323, so as to realize the electrical connection between the upper spring sheet group 3411 and the focus coil part 352. Specifically, two upper spring sheet parts located at opposite angles among the four upper spring sheet parts contact the focus coil part 352, for example, the first inner profile 34112 of the first upper spring sheet part 34114 covers one winding post 323 and contacts the focus coil part 352 wound on the winding post 323; the first inner profile 34112 of the third upper spring sheet part 34116 covers another winding post 323 and contacts the focus coil part 352 wound on the winding post 323.

[0128] That is to say, in the present application, only two of the four upper spring sheet components are electrically connected to the focus coil portion 352 , and the other two of the four upper spring sheet components are not electrically connected to the focus coil portion 352 .

[0129] Furthermore, two of the four side spring sheet components are electrically connected to the conductive portion 3124 of the base 312 and the upper spring sheet assembly 3411, respectively, that is, the focus coil portion 352 is connected to the conductive portion 3124 of the base 312 through the side spring sheet assembly 342. It should be understood that in the present application, the focus coil portion 352 and the anti-shake coil portion 353 are all centrally connected to the conductive portion 3124 of the base 312, and are electrically connected to the chip circuit board 22 through the conductive portion 3124 of the base 312, and the conductive structure is simpler.

[0130] Specifically, the first side spring sheet unit 3425 of the first side spring sheet component 3421 is electrically connected to the second conductive member 31242 of the conductive portion 3124 of the base 312, and the second side spring sheet unit 3426 of the first side spring sheet component 3421 is electrically connected to the first outer profile 34111 of the first upper spring sheet component 34114; the first side spring sheet unit 3425 of the third side spring sheet component 3423 is electrically connected to the second conductive member 31242 of the conductive portion 3124 of the base 312, and the second side spring sheet unit 3426 of the third side spring sheet component 3423 is electrically connected to the first outer profile 34111 of the third upper spring sheet component 34116. In this way, the circuit conduction between the upper spring sheet assembly 3411 and the side spring sheet assembly 342 can be achieved.

[0131] The driving device 30 further includes a magnetic conductive member (not shown), which is arranged between the magnet part 351 and the anti-shake frame 33, and is used to enhance the magnetic field strength of the magnet part 351 and prevent the magnetic field of the magnet part 351 from overflowing. In a specific example of the present application, the magnetic conductive member is fixed in the magnet mounting groove 332 of the anti-shake frame 33 by bonding or the like; in another specific example of the present application, the magnetic conductive member is embedded in the frame body 331 of the anti-shake frame 33 by processes such as insert molding. It can be understood that in the present application, the magnetic conductive member may not contain magnetism, such as the magnetic conductive member may be made of ferrite, or the magnetic conductive member itself may be a permanent magnet, and the present application does not limit this.

[0132] In one embodiment of the present application, the driving device 30 further includes a position sensing unit 36, and the position sensing element may be a Hall element, a driving IC or a TMR. The position sensing unit 36 ​​includes 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 portion 3124 of the base 312.

[0133] The first position sensing element 361 and the second position sensing element 362 are respectively disposed on two adjacent sides of the base 312, wherein the first position sensing element 361 and the first magnet 3511 (or the third magnet 3513) are arranged relative to each other in the height direction to sense the strength of the magnetic field of the first magnet 3511 (or the third magnet 3513), thereby determining the position of the anti-shake frame 33. The second position sensing element 362 and the second magnet 3512 (or the fourth magnet 3514) are arranged relative to each other in the height direction to sense the strength of the magnetic field of the second magnet 3512 (or the fourth magnet 3514), thereby determining the position of the anti-shake frame 33.

[0134] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A driving device, characterized in that: include: An anti-shake frame, used for coupling with an optical element, wherein the optical element defines an optical axis, and the anti-shake frame comprises a first surface and a second surface adjacent to each other; A base, wherein the anti-shake frame is movably disposed on the base; A side elastic sheet component, the side elastic sheet component comprising at least one group of a first side elastic sheet unit and a second side elastic sheet unit, the first side elastic sheet unit being connected to the base at the second surface, and the second side elastic sheet unit being connected to the anti-shake frame at the first surface, wherein a splicing interface is provided at a connection position between the first side elastic sheet unit and the second side elastic sheet unit, and the first side elastic sheet unit and the second side elastic sheet unit are suitable for being connected as a whole through the splicing interface; and A driving component is configured to drive the anti-shake frame to move.

2. The driving device according to claim 1, characterized in that: One end of the first side spring sheet unit has a first splicing interface, and one end of the second side spring sheet 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 suitable for splicing with each other; the first splicing interface and the second splicing interface are suitable for being reinforced by welding after splicing.

3. The driving device according to claim 1, characterized in that: The first side spring sheet unit and the second side spring sheet unit are arranged on opposite sides, and the connection position of the first side spring sheet unit and the second side spring sheet unit is parallel to the optical axis direction; the first side spring sheet unit faces the first direction, and the second side spring sheet unit faces the 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 stretches; 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 stretches, wherein the first direction is perpendicular to the second direction.

4. The driving device according to claim 1, characterized in that: The first side spring sheet unit includes a first fixing portion, a first connecting portion, and at least three bending sections extending between the first fixing portion and the first connecting portion; the second side spring sheet unit includes a second fixing portion, a second connecting portion, and at least three extending sections 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.

5. The driving device according to claim 4, characterized in that: 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 which are connected in sequence, wherein the first bending section extends from the first fixed portion along the optical axis direction 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 direction 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.

6. The driving device according to claim 5, characterized in that: The second side spring piece unit includes the second connecting portion, a first extension section, a second extension section, a third extension section, a fourth extension section and the second fixing portion which are 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 direction toward the object side direction, 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 direction toward the image side direction and is connected to the second fixing portion.

7. The driving device according to claim 6, characterized in that: The second side elastic piece unit further includes a fifth extension segment, which extends from the second fixing portion along the optical axis direction 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.

8. The driving device according to claim 7, characterized in that: The driving device also includes a focus carrier and a first spring sheet assembly, the first spring sheet assembly includes an upper spring sheet group and a lower spring sheet group, the upper spring sheet group and the lower spring sheet group are arranged at intervals along the optical axis direction, the upper spring sheet group is respectively connected to the top surface of the anti-shake frame and the top surface of the focus carrier, the lower spring sheet group is respectively connected to the bottom surface of the anti-shake frame and the bottom surface of the focus carrier, so as to suspend the focus carrier in the anti-shake frame, and the side spring sheet component is connected to the upper spring sheet group or the lower spring sheet group.

9. The driving device according to claim 8, characterized in that: The upper spring sheet group includes a first outer profile fixed to the anti-shake frame, a first inner profile fixed to the focus carrier, and a first deformation portion integrally connecting the first outer profile and the first inner profile, wherein the fifth extension section is suitable for being electrically connected to the first outer profile of the upper spring sheet group.

10. A camera module, characterized in that: include: Optical lens; A photosensitive component, wherein the optical lens is located on a photosensitive path of the photosensitive component, and the photosensitive component is used to receive light emitted by the optical lens for imaging; The driving device according to any one of claims 1 to 9, wherein: The driving device is suitable for driving the optical lens to move.

Images