Driving device and camera module

Abstract

The application discloses a driving device and a camera module. The driving device comprises a base, a shake reduction frame movably connected to the base, a focusing carrier movably connected to the shake reduction frame, a magnet part arranged on the shake reduction frame, the magnet part comprising a first magnet, a second magnet and a third magnet, the second magnet and the third magnet being arranged on two sides of the first magnet, a shake reduction coil part arranged on the base and opposite to the magnet part, and a focusing coil part arranged on the focusing carrier and opposite to the magnet part. The focusing coil part has a straight edge segment parallel to the length direction of the first magnet and an oblique edge segment connected to the straight edge segment and at a certain angle with the length direction of the first magnet.

Description

Technical Field

[0001] This application relates to the field of camera module technology, and in particular to a driving device and a camera module using the driving device. Background Technology

[0002] With the widespread adoption of mobile electronic devices, the technologies related to camera modules used in these devices to help users capture images have developed and progressed rapidly. Currently, consumers in the market have increasingly higher and more diverse requirements for the functions of camera modules configured in mobile electronic devices (e.g., smartphones), such as focusing and image stabilization.

[0003] When implementing the image stabilization function of a camera module, suspension cables are often used to suspend and move the moving parts. However, suspension cables have problems such as complicated assembly process and easy breakage, which can cause the motor to not work or the compensation effect to deteriorate.

[0004] Therefore, there is an expectation for a superior driving device and camera module to meet consumers' needs for focusing and / or image stabilization functions. Summary of the Invention

[0005] One objective of this application is to provide a driving device and a camera module that overcomes the shortcomings of the prior art and has excellent focusing and / or image stabilization functions.

[0006] According to a first aspect of this application, a driving device is provided, comprising:

[0007] Base;

[0008] A stabilization frame, which is movably connected to the base;

[0009] A focusing carrier, which is movably connected to the image stabilization frame;

[0010] A magnet section is disposed on the image stabilization frame. The magnet section includes a first magnet, a second magnet, and a third magnet, with the second magnet and the third magnet disposed opposite to each other on both sides of the first magnet.

[0011] A stabilization coil is disposed on the base and opposite to the magnet.

[0012] The focusing coil section is disposed on the focusing carrier and opposite to the magnet section. The focusing coil section has a straight side section that is parallel to the length direction of the first magnet, and an oblique side section that is connected to the straight side section and forms a certain angle with the length direction of the first magnet.

[0013] In some embodiments, the driving device includes a first side, a second side, a third side, and a fourth side arranged sequentially around its periphery, wherein a first magnet is disposed on the first side, a second magnet is disposed on the second side, a third magnet is disposed on the fourth side, and no magnet is disposed on the third side.

[0014] In some embodiments, the focusing coil includes a first focusing coil portion located on the first side, a second focusing coil portion located on the second side, a third focusing coil portion located on the third side, and a fourth focusing coil portion located on the fourth side. The first focusing coil portion is within the magnetic field range of the first magnet, the second focusing coil portion is within the magnetic field range of the second magnet, and the fourth focusing coil portion is within the magnetic field range of the third magnet.

[0015] In some embodiments, the first focusing coil portion includes a straight edge segment and at least two inclined edge segments connected to the straight edge segment, wherein the distance from the straight edge segment to the first magnet is less than the distance from the two inclined edge segments to the first magnet.

[0016] In some embodiments, the length of the straight side segment is less than the length of the inclined side segment to reduce the effective response between the first magnet and the first focusing coil portion.

[0017] In some embodiments, the focusing coil has a symmetrical structure, with the second focusing coil portion and the fourth focusing coil portion being symmetrically arranged, and the first focusing coil portion and the third focusing coil portion being symmetrically arranged.

[0018] In some embodiments, the image stabilization coil portion includes a first image stabilization coil, a second image stabilization coil, and a third image stabilization coil. The first image stabilization coil is fixed to the base and faces the first magnet. The second image stabilization coil is fixed to the base and faces the second magnet. The third image stabilization coil is fixed to the base and faces the third magnet.

[0019] In some embodiments, the driving device includes a magnetic guide, which includes a first magnetic guide, a second magnetic guide, and a third magnetic guide. The first magnetic guide is disposed on the side of the first magnet away from the first image stabilization coil, the second magnetic guide is disposed on the side of the second magnet away from the second focusing coil portion, and the third magnetic guide is disposed on the side of the third magnet away from the fourth focusing coil portion.

[0020] In some embodiments, the drive device includes a suspension portion, the suspension portion including a first suspension portion and a side suspension portion, the first suspension portion connecting the focusing carrier and the image stabilization frame, the focusing carrier being suspended within the image stabilization frame by the first suspension portion; the side suspension portion connecting the image stabilization frame and the base, the image stabilization frame being suspended within the base by the side suspension portion.

[0021] According to a second aspect of this application, a camera module is provided, comprising:

[0022] Photosensitive components;

[0023] An optical lens, the optical lens being held in the light-sensing path of the photosensitive element; and

[0024] A driving device adapted to drive the optical lens to move.

[0025] Compared with the prior art, this application has at least one of the following technical effects:

[0026] 1. Avoid the generation of asymmetric forces, thereby avoiding dynamic posture differences such as tilting or rotation of the focusing carrier under the action of asymmetric forces;

[0027] 2. By reducing the length of the straight edge section of the first focusing coil, the effective response between the first magnet and the focusing coil is reduced.

[0028] Further embodiments and features are set forth in part in the following description, and will be understood by those skilled in the art upon review of the specification or through practice of the disclosed subject matter. Further understanding of the features and advantages of this disclosure may be achieved by referring to the remainder of the specification and drawings, which form part of this application. Attached Figure Description

[0029] Figure 1 This is a cross-sectional schematic diagram of a camera module according to an embodiment of this application;

[0030] Figure 2 This is a three-dimensional exploded view of the driving device according to an embodiment of this application;

[0031] Figure 3 This is a three-dimensional exploded view of the focusing portion of the drive device according to an embodiment of this application;

[0032] Figure 4 This is a schematic diagram of the drive device after removing the housing according to an embodiment of the present application;

[0033] Figure 5This is a schematic diagram of the magnet section, focusing coil section and image stabilization coil section of the driving device according to an embodiment of this application;

[0034] Figure 6 This is a top view of the magnet section and the focusing coil section of the driving device according to an embodiment of this application;

[0035] Figure 7 This is a schematic diagram of the structure of the suspension part of the drive device according to an embodiment of this application;

[0036] Figure 8A This is a top view of the suspension part and magnet part of the drive device according to an embodiment of this application;

[0037] Figure 8B yes Figure 8A An enlarged schematic diagram of the circular region A;

[0038] Figure 9 This is a schematic diagram of the structure of the lower suspension assembly of the drive device according to an embodiment of this application;

[0039] Figure 10 This is a bottom view of the suspension part, focusing carrier, image stabilization frame, and magnet part of the drive device according to an embodiment of this application.

[0040] Figure 11 This is a schematic diagram of the structure of the suspension part, focusing carrier, image stabilization frame, base, and image stabilization circuit board of the drive device according to the embodiments of this application. Detailed Implementation

[0041] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0042] The term "comprising" is open-ended. As used in the appended claims, it does not exclude additional structures or steps.

[0043] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0044] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0045] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this 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 is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0046] It should be noted that, as used in this application, the terms “basically,” “approximately,” and similar terms are used to indicate approximation rather than degree, and are intended to describe inherent deviations in measured or calculated values ​​that would be recognized by a person skilled in the art.

[0047] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection, a contact connection, or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] "Configured as" refers to various units, circuits, or other components that can be described or stated as being "configured as" to perform one or more tasks. In such a context, "configured as" is used to imply a structure by indicating that the unit / circuit / component includes a structure (e.g., a circuit) that performs this one or more tasks during operation. Furthermore, "configured as" can include a general structure (e.g., a general-purpose circuit) manipulated by software and / or firmware to operate in a manner capable of performing one or more tasks to be solved. "Configured as" can 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.

[0049] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the specification and appended claims, the singular forms “a,” “an,” and “the” are intended to also cover the plural forms unless the context otherwise expressly indicates otherwise. It will also be understood that the term “and / or” as used herein refers to and covers any and all possible combinations of one or more of the items listed in connection with the description. It will also be understood that the terms “comprising” and / or “including” as used in this specification specify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0050] As used herein, depending on the context, the term "if" can be interpreted as meaning "when..." or "in response to determination" or "in response to detection". Similarly, depending on the context, the phrase "if it is determined..." or "if [the stated condition or event] is detected" can be interpreted as meaning "when it is determined..." or "in response to determination..." or "when [the stated condition or event] is detected" or "in response to detection".

[0051] Exemplary camera module

[0052] Figures 1 to 11 The driving device 20 and the camera module 1 of this application are shown, as follows: Figure 1 As shown, the camera module 1 according to the embodiment of this application is explained, which includes a photosensitive component 30, an optical lens 10 held on the photosensitive path of the photosensitive component 30, and a driving device 20 for driving the optical lens 10 to move to achieve optical performance adjustment, for example, for achieving functions such as image stabilization and focusing.

[0053] Accordingly, 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 30 is disposed opposite to the optical lens 10 along the optical axis direction. For ease of description, the side of the camera module 1 facing the subject is called the object side, and the side of the camera module 1 facing the photosensitive component 30 is called the image side. The optical axis direction includes the direction along the optical axis pointing to the image side (hereinafter referred to as the image side) and the direction along the optical axis pointing to the object side (hereinafter referred to as the object side). The horizontal direction is the direction perpendicular to the optical axis direction, and the vertical direction is the direction along the optical axis direction.

[0054] Continue to refer to Figure 1The optical lens 10 is fixed in the driving device 20, and the photosensitive component 30 is fixed on the image side of the driving device 20. Thus, the optical lens 10 can be held on the photosensitive path of the photosensitive component 30 by the driving device 20. The optical lens 10 is suitable to be driven by the driving device 20 to achieve functions such as image stabilization and focusing.

[0055] The photosensitive component 30 includes a chip circuit board 32, a photosensitive chip 31 electrically connected to the chip circuit board 32, and multiple electronic components 33. The photosensitive chip 31 is used to receive ambient light collected by the optical lens 10 for imaging and is electrically connected to an external mobile electronic device through the chip circuit board 32. In one embodiment of this application, the multiple electronic components 33 may be one or more of passive electronic devices such as resistors and capacitors, and active electronic devices such as driver chips and memory chips.

[0056] The photosensitive assembly 30 further includes a filter assembly 34, which includes a filter element 341. The filter element 341 is held on the photosensitive path of the photosensitive chip 31 and is disposed between the optical lens 10 and the photosensitive chip 31. It is used to filter the incident light entering the photosensitive chip 31 and filter out stray light that is not needed for imaging, such as infrared light.

[0057] The filter assembly 34 also includes a filter element bracket 342, on which the filter element 341 is mounted and fixed and corresponds to at least the photosensitive area of ​​the photosensitive chip 31. The filter element bracket 342 has a light-transmitting hole through which incident light passing through the optical lens 10 enters the photosensitive chip 31. The filter element 341 can be attached to the filter element bracket 342 either upright or upside down.

[0058] Furthermore, the filter element bracket 342 is fixed to the chip circuit board 32. In one embodiment of this application, the photosensitive component 30 is fixed to the image side of the driving device 20 through the filter element bracket 342. In another embodiment of this application, the photosensitive component 30 can also be fixed to the image side of the driving device 20 through the chip circuit board 32.

[0059] The filter element bracket 342 can be pre-formed and then fixed to the chip circuit board 32 by means of adhesive medium, or it can be integrally formed into the chip circuit board 32 by means of molding process, etc., and directly fixed to the chip circuit board 32 by integral forming. This application is not limited to this.

[0060] Exemplary drive device

[0061] like Figures 2 to 11As shown, the driving device 20 of this 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 30, thereby achieving focusing. The driving device 20 can also drive the optical lens 10 to move in the X-axis and / or Y-axis directions to translate the optical lens 10 relative to the photosensitive component 30, thereby achieving image stabilization. In this embodiment, the X-axis and Y-axis directions are perpendicular to each other, and the Z-axis direction is perpendicular to the plane containing the X-axis and Y-axis directions. In other words, the X-axis, Y-axis, and Z-axis constitute a three-dimensional coordinate system. The XOY plane containing the X-axis and Y-axis directions is also called the horizontal plane. The Z-axis is close to or parallel to the optical axis. In this application, due to assembly tolerance issues, perpendicularity includes two cases where the angle between two objects is 90° and close to 90°, and parallelism includes two cases where the angle between two objects is 0° and close to 0°. That is, approximately perpendicularity can also be considered perpendicularity, and approximately parallelism can also be considered parallelism. In one embodiment of this application, the driving device 20 includes a fixed portion 21, a focusing carrier 22, an image stabilization frame 23, a suspension portion 24, a magnet portion 25, a focusing coil portion 26, and an image stabilization coil portion 27. The focusing carrier 22, image stabilization frame 23, suspension portion 24, magnet portion 25, focusing coil portion 26, and image stabilization coil portion 27 are housed in the fixed portion 21. The magnet portion 25 is disposed on the image stabilization frame 23. The focusing coil portion 26 is disposed on the focusing carrier 22 and faces the magnet portion 25. The image stabilization coil portion 27 is disposed on the fixed portion 21 and faces the magnet portion 25. The driving device 20 includes a focusing portion and an image stabilization portion. The focusing portion is used to implement the focusing function of the driving device 20; the image stabilization portion is used to implement the image stabilization function of the driving device 20.

[0062] Specifically, in one embodiment of this application, the fixing part 21 includes a housing 211 and a base 212. The housing 211 and the base 212 are fastened together to form a receiving cavity of the fixing part 21 to accommodate components such as the focusing carrier 22, the image stabilization frame 23, the suspension part 24, the magnet part 25, the focusing coil part 26, and the image stabilization coil part 27. This can prevent dust from entering and prevent the components from falling off when impacted.

[0063] Furthermore, in one embodiment of this application, the base 212 includes a base body 2121 and a stabilization coil mounting position 2122 disposed on the base body 2121, wherein the stabilization coil mounting position 2122 is disposed on the top surface of the base body 2121, and the stabilization coil portion 27 is disposed within the stabilization coil mounting position 2122. The base 212 further includes a base boss 2123, which is integrally disposed on the base body 2121 and extends toward the object side, and is disposed near a corner of the base body 2121.

[0064] In this embodiment, both the housing 211 and the base 212 of the fixing part 21 are stators. When the driving device 20 drives the optical lens 10 to move, the fixing part 21 remains relatively fixed, while other components move relative to the fixing part 21. In one embodiment of this application, the photosensitive component 30 is fixed to the base 212 of the fixing part 21, thus the photosensitive component 30 also becomes a relatively fixed part. The housing 211 and the base 212 each have a light-transmitting hole, so that imaging light can enter the optical lens 10 fixed to the driving device 20 and exit the optical lens 10 to enter the photosensitive component 30.

[0065] like Figures 2 to 4 As shown, in one embodiment of this application, the image stabilization frame 23 is movably connected to the base 212 of the fixing part 21, the focusing carrier 22 is movably connected to the image stabilization frame 23, and the optical lens 10 is fixed to the focusing carrier 22, so that when the focusing carrier 22 is driven by the driving device 20, the optical lens 10 moves with the focusing carrier 22.

[0066] In one embodiment of this application, the focusing carrier 22 includes a carrier body 221, wherein the optical lens 10 is fixed to the carrier body 221. The carrier body 221 has a through hole suitable for accommodating the optical lens 10. The optical lens 10 is fixed in the through hole of the focusing carrier 22. Specifically, the optical lens 10 can be fixed to the focusing carrier 22 by means of, for example, adhesive bonding or welding, or by making the lens barrel of the optical lens 10 and the focusing carrier 22 integrally formed. This application is not limited to this.

[0067] The focusing carrier 22 is movably disposed inside the image stabilization frame 23, and the image stabilization frame 23 is movably disposed between the focusing carrier 22 and the fixing part 21. In one embodiment of this application, the image stabilization frame 23 is movably disposed above the base 212. The image stabilization frame 23 includes a frame body 231, and the frame body 231 has a receiving cavity 2310. The focusing carrier 22 is accommodated in the receiving cavity 2310 of the image stabilization frame 23.

[0068] It is understood that, in this embodiment, the focusing carrier 22 can be driven to move independently relative to the image stabilization frame 23, or it can move together with the image stabilization frame 23 under its influence. Furthermore, by driving the focusing carrier 22 and / or the image stabilization frame 23 to move, the optical lens 10 is moved to achieve focusing and / or image stabilization functions.

[0069] Specifically, when the image stabilization frame 23 remains stationary and the focusing carrier 22 is driven to move relative to the image stabilization frame 23, the focusing carrier 22 can drive the optical lens 10 to move along the optical axis to achieve focusing; when the image stabilization frame 23 is driven to move relative to the base 212, the image stabilization frame 23 can drive the focusing carrier 22 and the optical lens 10 to move in a plane perpendicular to the optical axis to achieve image stabilization.

[0070] Reference Figure 2 and Figure 3 As shown, in one embodiment of this application, the magnet part 25, the focusing coil part 26 and the image stabilization coil part 27 form a driving assembly of the driving device 20, which can drive the focusing carrier 22 and the image stabilization frame 23 to move.

[0071] A magnet 25 is disposed on the image stabilization frame 23, a focusing coil 26 is disposed on the focusing carrier 22 and opposite to the magnet 25, and an image stabilization coil 27 is disposed on the base 212 of the fixing part 21 and opposite to the magnet 25. In a specific example of this application, the magnet 25 is fixed to the image stabilization frame 23, the focusing coil 26 is fixed to the side of the focusing carrier 22, and the image stabilization coil 27 is fixed to the top surface of the base 212. That is, the focusing coil 26 and the magnet 25 are disposed opposite to each other in the horizontal direction, and the image stabilization coil 27 and the magnet 25 are disposed opposite to each other in the vertical direction.

[0072] In one embodiment of this application, the focusing carrier 22 further includes a focusing coil mounting position 223 disposed on the side wall of the carrier body 221, and the focusing coil portion 26 is disposed in the focusing coil mounting position 223. Of course, the focusing coil portion 26 can be directly wound around the side wall of the focusing carrier 22, or it can be pre-formed and then installed on the side wall of the focusing carrier 22; this application does not impose any restrictions on this.

[0073] It is understood that in this application, the focusing coil portion 26 can be a hollow spiral coil, that is, the focusing coil portion 26 is a single coil, which is disposed in a spiral manner on the side wall of the focusing carrier 22; the focusing coil portion 26 can also be a hollow planar coil, that is, the number of focusing coil portions 26 is at least one, which is disposed in a planar attachment manner on the side wall of the focusing carrier 22.

[0074] In a specific example of this application, the focusing coil mounting position 223 is formed by an inwardly recessed groove in the side wall of the carrier body 221, so that the focusing coil portion 26 does not protrude from the side wall of the carrier body 221 when it is positioned in the focusing coil mounting position 223, thereby avoiding an increase in the lateral dimension of the drive device 20.

[0075] Among them, in an embodiment of the present application, the anti-shake frame 23 further includes a magnet placement groove 232, and the magnet portion 25 is disposed in the magnet placement groove 232. The magnet placement groove 232 has an opening along the horizontal direction facing the focusing carrier 22 and an opening along the height direction facing the base 212, so that the side surface and the bottom surface of the magnet portion 25 disposed in the magnet placement groove 232 are exposed.

[0076] Furthermore, the side surface of the magnet portion 25 facing the focusing coil portion 26 is exposed and not covered by the anti-shake frame 23, so that the distance between the focusing coil portion 26 and the magnet portion 25 can be designed to be smaller, in order to reduce the lateral dimension (the dimension in the horizontal direction) of the driving device 20; the bottom surface of the magnet portion 25 facing the anti-shake coil portion 27 is exposed, so that the distance between the anti-shake coil portion 27 and the magnet portion 25 can be designed to be smaller, in order to reduce the height dimension (the dimension in the Z-axis direction) of the driving device 20.

[0077] The focusing coil portion 26 generates a magnetic field under current excitation and interacts with the magnetic field of the magnet portion 25. Then, the focusing coil portion 26 is driven, and the focusing coil portion 26 moves along the Z-axis direction. The focusing carrier 22 moves with the focusing coil portion 26, thereby realizing the focusing function; the anti-shake coil portion 27 generates a magnetic field under current excitation and interacts with the magnetic field of the magnet portion 25. Then, the magnet portion 25 is driven, and the magnet portion 25 moves in the X-axis direction and / or the Y-axis direction. The anti-shake frame 23 moves with the magnet portion 25, and the focusing carrier 22 disposed on the anti-shake frame 23 moves with the anti-shake frame 23, thereby realizing the anti-shake function.

[0078] In the embodiment of the present application, the magnet portion 25 is reused. The magnet portion 25 is used to interact with the focusing coil portion 26 during the process of realizing the focusing function and is also used to interact with the anti-shake coil portion 27 during the process of realizing the anti-shake function, making the structural design of the driving device 20 intensive and miniaturized.

[0079] As Figures 2 to 6 shown, in an embodiment of the present application, the magnet portion 25 includes a first magnet 251, a second magnet 252, and a third magnet 253. The first magnet 251, the second magnet 252, and the third magnet 253 are fixed in the magnet placement groove 232 of the anti-shake frame 23 in a counterclockwise order. The second magnet 252 and the third magnet 253 are relatively disposed on both sides of the first magnet 251, and the three are arranged in a substantially "匚"-shaped structure.

[0080] The focusing coil section 26 includes a pair of focusing coils 261, which surround the side wall of the focusing carrier 22 and are disposed within the focusing coil mounting position 223 on the side wall of the focusing carrier 22. The focusing coils 261 are configured to be arranged horizontally opposite to the second magnet 252 and the third magnet 253. When excited by an electric current, the focusing coils 261 generate a magnetic field that interacts with the second magnet 252 and the third magnet 253, thereby driving the focusing coil section 26 and the focusing carrier 22 to move relative to the magnet section 25 and the image stabilization frame 23.

[0081] The image stabilization coil section 27 includes a first image stabilization coil 271, a second image stabilization coil 272, and a third image stabilization coil 273. The first image stabilization coil 271 is fixed in the image stabilization coil mounting position 2122 of the base 212, and the first image stabilization coil 271 is opposite to the first magnet 251 in the height direction. The second image stabilization coil 272 is fixed in the image stabilization coil mounting position 2122 of the base 212, and the second image stabilization coil 272 is opposite to the second magnet 252 in the height direction. The third image stabilization coil 273 is fixed in the image stabilization coil mounting position 2122 of the base 212, and the third image stabilization coil 273 is opposite to the third magnet 253 in the height direction.

[0082] Specifically, the first image stabilization coil 271, the second image stabilization coil 272, and the third image stabilization coil 273 are fixed to the top surface of the base 212 in a counterclockwise order. The second image stabilization coil 272 and the third image stabilization coil 273 are positioned on either side of the first image stabilization coil 271, and the three are arranged in a roughly "U"-shaped structure. Furthermore, the first image stabilization coil 271, the second image stabilization coil 272, and the third image stabilization coil 273 are laid flat on the top surface of the base 212.

[0083] The first image stabilization coil 271 is positioned opposite to the first magnet 251, the second image stabilization coil 272 is positioned opposite to the second magnet 252, and the third image stabilization coil 273 is positioned opposite to the third magnet 253. Thus, the first image stabilization coil 271, the second image stabilization coil 272, and the third image stabilization coil 273 generate magnetic fields under current excitation, which interact with the magnetic fields of the first magnet 251, the second magnet 252, and the third magnet 253, thereby driving the magnet part 25, the image stabilization frame 23, the focusing coil part 26, and the focusing carrier 22 to move relative to the base 212 of the fixed part 21.

[0084] When the image stabilization frame 23 is driven to move horizontally along the X-axis, the second magnet 252 interacts with the second image stabilization coil 272, and the third magnet 253 interacts with the third image stabilization coil 273 to generate a driving force along the X-axis. When the image stabilization frame 23 is driven to move horizontally along the Y-axis, the first magnet 251 interacts with the first image stabilization coil 271 to generate a driving force along the Y-axis. In this application, the length direction of the first magnet 251 is parallel to the X-axis, and the length directions of the second magnet 252 and the third magnet 253 are parallel to the Y-axis.

[0085] In other words, when the image stabilization frame 23 is driven to move horizontally along the X-axis, both the second magnet 252 and the third magnet 253 are engaged; when the image stabilization frame 23 is driven to move horizontally along the Y-axis, since no magnet is provided on the opposite side of the first magnet 251, only the first magnet 251 is engaged, resulting in a smaller driving force in that direction. To solve the above problem, in this application, the first magnet 251 is implemented as a multi-stage magnet to increase the magnetic thrust generated when the first magnet 251 interacts with the first image stabilization coil 271. For example, the first magnet 251 can be a quadrupole magnet.

[0086] like Figure 5 As shown, in one embodiment of this application, the first magnet 251 includes a first magnetic portion 251a and a second magnetic portion 251b. The first magnetic portion 251a and the second magnetic portion 251b are stacked in a horizontal direction (perpendicular to the optical axis). The second magnetic portion 251b is located on the side of the first magnetic portion 251a away from the optical axis and on the side of the first magnetic portion 251a away from the focusing carrier 22. The first magnetic portion 251a is located between the focusing carrier 22 and the second magnetic portion 251b. The upper part of the first magnetic portion 251a is the N pole, and the lower part is the S pole. The magnetic pole direction of the first magnetic portion 251a is downward. The upper part of the second magnetic portion 251b is the S pole, and the lower part is the N pole. The magnetic pole direction of the second magnetic portion 251b is upward. Thus, the side of the first magnet 251 facing the first image stabilization coil 271 has both N and S poles. It should be noted that in this application, the magnetic pole direction (NS) refers to the direction in which the N pole extends towards the S pole.

[0087] Of course, in this application, the second magnet 252 and the third magnet 253 can be implemented as bipolar magnets, with the side of the second magnet 252 closer to the optical axis being the N pole and the side farther from the optical axis being the S pole; similarly, the side of the third magnet 253 closer to the optical axis is the N pole and the side farther from the optical axis is the S pole. It is understood that in this application, the second magnet 252 and the third magnet 253 can also be multipolar magnets, such as quadrupole magnets, and this application does not impose any limitations on this.

[0088] Furthermore, in one embodiment of this application, the first anti-shake coil 271 is larger in length than the second anti-shake coil 272 and the third anti-shake coil 273 in length, so as to increase the magnetic thrust generated when the first magnet 251 interacts with the first anti-shake coil 271.

[0089] In this application, the second magnet 252 and the third magnet 253 of the magnet section 25 are reused. The second magnet 252 and the third magnet 253 are used to interact with the focusing coil section 26 during the focusing function and to interact with the image stabilization coil section 27 during the image stabilization function. That is, the second magnet 252 and the third magnet 253 can simultaneously provide the magnetic field required by the focusing coil section 26 and the image stabilization coil section 27.

[0090] Since the first magnet 251 is not used to drive the focusing coil section 26 and the focusing carrier 22 to move, the dimension of the first magnet 251 in the height direction is smaller than that of the second magnet 252 and the third magnet 253, and the height of the top surface of the first magnet 251 is also lower than that of the top surface of the second magnet 252 and the third magnet 253.

[0091] As mentioned above, the magnet section 25 includes three magnets: a first magnet 251, a second magnet 252, and a third magnet 253. The magnet section 25 is only disposed on three sides of the driving device 20; one side of the driving device 20 does not have the magnet section 25, and the side opposite to the first magnet 251 does not have a magnet. It is understood that when the driving device 20 in this embodiment is applied to an array module, the camera module unit of another array module can be disposed on the side of the driving device 20 without the magnet section 25. In this way, the magnet section 25 of the driving device 20 will not cause magnetic field interference to adjacent camera modules.

[0092] In another embodiment of this application, the magnet section 25 may also include only two magnets, the first magnet 251 and the second magnet 252. In this case, the image stabilization coil section 27 includes a first image stabilization coil 271 opposite to the first magnet 251 and a second image stabilization coil 272 opposite to the second magnet 252. Reducing one magnet (the third magnet 253) can further reduce the size of the drive device 20, but it also reduces the driving force of the drive device 20. As a result, when the focusing function is implemented, only one side is provided with the focusing coil 261 and the second magnet 252 for driving. Due to the interaction between the focusing coil 261 and the second magnet 252, the focusing carrier 22 is prone to tilting relative to the Z-axis (optical axis), ultimately causing the image of the camera module 1 to be blurred.

[0093] In another embodiment of this application, the magnet part 25 may further include a fourth magnet, so that magnets are provided on all four sides of the driving device 20. The magnet part 25 includes four magnets. However, when magnets are provided on all four sides of the driving device 20, when the driving device 20 is used in an array module, the side of the camera module adjacent to the driving device 20 and adjacent to the fourth magnet cannot be provided with a coil-magnet pair, so as to avoid electromagnetic interference between the fourth magnet pair and the coil-magnet pair of the camera module adjacent to the fourth magnet.

[0094] In one embodiment of this application, the driving device 20 includes a first side 201, a second side 202, a third side 203, and a fourth side 204 arranged sequentially around its periphery. A first magnet 251 is disposed on the first side 201 of the driving device 20, a second magnet 252 is disposed on the second side 202 of the driving device 20 adjacent to the first side 201, and a third magnet 253 is disposed on the fourth side 204 of the driving device 20 opposite to the second side 202. The third side 203 is not provided with a magnet.

[0095] like Figure 5 and Figure 6 As shown, the focusing coil 261 is arranged in a surrounding manner on the first side 201, the second side 202, the third side 203 and the fourth side 204 of the drive device 20. The focusing coil 261 includes a first focusing coil portion 2611 located on the first side 201, a second focusing coil portion 2612 located on the second side 202, a third focusing coil portion 2613 located on the third side 203 and a fourth focusing coil portion 2614 located on the fourth side 204. As can be seen, the first focusing coil section 2611, which is located on the same side, is within the magnetic field range of the first magnet 251, the second focusing coil section 2612 is within the magnetic field range of the second magnet 252, and the fourth focusing coil section 2614 is within the magnetic field range of the third magnet 253. That is to say, after the focusing coil 261 is energized, the magnetic field generated by the first focusing coil section 2611 interacts with the magnetic field of the first magnet 251, the magnetic field generated by the second focusing coil section 2612 interacts with the magnetic field of the second magnet 252, and the magnetic field generated by the fourth focusing coil section 2614 interacts with the magnetic field of the third magnet 253.

[0096] However, in this application, the magnet part 25 is only provided on three sides of the drive device 20, and no magnet is provided on the opposite side of the first magnet 251, that is, no magnet is provided on the third side 203 opposite to the first side 201. This causes only three sides of the focusing carrier 22 to be driven after the focusing coil 261 is energized, and the focusing carrier 22 will tilt under the action of asymmetrical force.

[0097] Furthermore, under the action of the driving force, the focusing carrier 22 will generate translational motion along the Z-axis and rotational motion around the Z-axis. That is, the focusing carrier 22 will be subjected to translational thrust and rotational thrust. When realizing the focusing function, the rotational motion around the Z-axis generated by the focusing carrier 22 should be minimized as much as possible. Since no magnet is provided on the opposite side of the first magnet 251, when one side of the focusing carrier 22 is driven by the interaction between the first magnet 251 and the first focusing coil part 2611, the other side of the focusing carrier 22 opposite to that side is not driven. That is, there is no symmetrical force on the opposite sides of the focusing carrier 22 to counteract the rotational force, which cannot reduce the rotational motion around the Z-axis generated by the focusing carrier 22, making the focusing carrier 22 prone to dynamic posture difference.

[0098] In this application, the second magnet 252 and the third magnet 253 of the magnet section 25 are reused, while the first magnet 251 of the magnet section 25 is not reused. That is, the first magnet 251 is only used to interact with the first image stabilization coil 271 during the process of realizing the image stabilization function. Therefore, by reducing the interaction between the first magnet 251 and the first focusing coil section 2611 of the focusing coil 261, the influence of the driving force generated by the first magnet 251 and the first focusing coil section 2611 on the focusing carrier 22 can be reduced, thereby avoiding dynamic posture differences such as tilting or rotation of the focusing carrier 22 under the action of asymmetric forces.

[0099] like Figure 6 As shown, in one embodiment of this application, the first focusing coil portion 2611 of the focusing coil 261 includes a straight edge segment 2611a parallel to the length direction of the first magnet 251, and inclined edge segments 2611b and 2611c connected to the straight edge segment 2611a and forming a certain angle with the length direction of the first magnet 251. The number of inclined edge segments 2611b and 2611c is two, and the two inclined edge segments 2611b and 2611c extend from both ends of the straight edge segment 2611a toward the optical axis. That is, the first focusing coil portion 2611 includes a straight edge segment 2611a and two inclined edge segments 2611b and 2611c connected to the straight edge segment 2611a. In a specific example of this application, the inclined edge segments 2611b and 2611c can be straight line segments or curved segments; this application does not impose any limitations on this.

[0100] Understandably, on the one hand, when the magnetic field lines of the magnet are perpendicular to the plane of the coil, the magnetic flux through the coil is at its maximum, and the effective reaction between the magnet and the coil is strongest. Therefore, since the straight edge segment 2611a of the first focusing coil portion 2611 is perpendicular to the magnetic field lines of the first magnet 251, the longer the straight edge segment 2611a of the first focusing coil portion 2611, the more magnetic field lines pass through the focusing coil 261, the greater the magnetic flux through the focusing coil 261, the stronger the effective reaction between the focusing coil 261 and the first magnet 251, the stronger the interaction between the focusing coil 261 and the first magnet 251, and the greater the impact on the focusing carrier 22.

[0101] On the other hand, looking at its plane along the optical axis, that is, from the top view, the straight edge segment 2611a of the first focusing coil portion 2611 is closer to the first magnet 251, while the oblique edge segments 2611b and 2611c of the first focusing coil portion 2611 are farther from the first magnet 251. That is, the distance from the straight edge segment 2611a to the first magnet 251 is less than the distance from the two oblique edge segments 2611b and 2611c to the first magnet 251, and the effective response between the straight edge segment 2611a of the first focusing coil portion 2611 and the first magnet 251 is greater. The longer the length of the straight edge segment 2611a of the first focusing coil section 2611, the shorter the lengths of the two inclined edge segments 2611b and 2611c connected to it. The stronger the interaction between the straight edge segment 2611a of the first focusing coil section 2611 and the first magnet 251, the stronger the interaction between the focusing coil 261 and the first magnet 251, and the greater the impact on the focusing carrier 22.

[0102] In summary, this application reduces the effective interaction between the first magnet 251 and the focusing coil 261 by shortening the length of the straight edge segment 2611a of the first focusing coil portion 2611. In a specific example of this application, the length of the straight edge segment 2611a of the first focusing coil portion 2611 is less than the length of the inclined edges 2611b and 2611c, wherein the length of the straight edge segment 2611a is shortened to its minimum dimension. In a specific example of this application, the length of the straight edge segment 2611a ranges from 0.1mm to 1mm; further, the length of the straight edge segment 2611a ranges from 0.2mm to 0.4mm. On the one hand, this reduces the magnetic field lines traversed by the focusing coil 261, thus reducing the effective interaction between the focusing coil 261 and the first magnet 251; on the other hand, it allows the first coil portion to be further away from the first magnet 251, weakening the interaction between the focusing coil 261 and the first magnet 251, thereby reducing the impact of asymmetric forces on the focusing carrier 22. Furthermore, this design can effectively reduce the resistance value in unused areas. Understandably, the size of the straight edge segment 2611a cannot be infinitely small to avoid making the manufacturing of the focusing coil 261 more difficult.

[0103] In another specific example of this application, the first focusing coil portion 2611 of the focusing coil 261 is an arc-shaped structure or a near-arc-shaped structure. In this case, the first focusing coil portion 2611 does not have a straight edge segment 2611a, which can better achieve the effect of reducing the effective reaction between the first magnet 251 and the focusing coil 261.

[0104] Continue to refer to Figure 6 In one embodiment of this application, the focusing coil 261 has a symmetrical structure, that is, the second focusing coil portion 2612 and the fourth focusing coil portion 2614 are symmetrically arranged, and the first focusing coil portion 2611 and the third focusing coil portion 2613 are symmetrically arranged. In a specific example of this application, the second focusing coil portion 2612 of the focusing coil 261 has only a straight edge segment and no oblique edge segment, that is, the second focusing coil portion 2612 extends along the length direction of the second magnet 252 and is arranged parallel to the length direction of the second magnet 252; the fourth focusing coil portion 2614 of the focusing coil 261 has only a straight edge segment and no oblique edge segment, that is, the fourth focusing coil portion 2614 extends along the length direction of the third magnet 253 and is arranged parallel to the length direction of the third magnet 253.

[0105] The magnetic thrust F2 generated by the interaction between the second focusing coil section 2612 and the second magnet 252, and the magnetic thrust F3 generated by the interaction between the fourth focusing coil section 2614 and the third magnet 253, are together more than 20 times the magnetic thrust F1 generated by the interaction between the first focusing coil section 2611 and the first magnet 251. In other words, the larger the ratio of the sum of F2 and F3 to F1, the smaller the interaction between the first focusing coil section 2611 and the first magnet 251, and the smaller the asymmetric force generated by the focusing carrier 22, thereby avoiding the focusing carrier 22 from undergoing slanting or rotating movements.

[0106] It is understandable that the lengths of the first magnet 251, the second magnet 252, the third magnet 253, and the second and fourth focusing coil sections 2612 and 2614 are determined by the dimensions of the drive device 20. In this application, the magnitude of the magnetic thrust F1 generated by the interaction between the first focusing coil section 2611 and the first magnet 251 is adjusted by adjusting the length of the straight edge segment 2611a of the first focusing coil section 2611.

[0107] In one embodiment of this application, the carrier body 221 includes a first sidewall 2210, a second sidewall 2211, a third sidewall 2212 and a fourth sidewall 2213 arranged sequentially around its periphery, wherein the first sidewall 2210 and the third sidewall 2212 are opposite to each other, and the second sidewall 2211 and the fourth sidewall 2213 are opposite to each other. The focusing coil 261 is arranged around the first sidewall 2210, the second sidewall 2211, the third sidewall 2212, and the fourth sidewall 2213 of the carrier body 221. The first focusing coil portion 2611 of the focusing coil 261 is located on the first sidewall 2210, the second focusing coil portion 2612 of the focusing coil 261 is located on the second sidewall 2211, the third focusing coil portion 2613 of the focusing coil 261 is located on the third sidewall 2212, and the fourth focusing coil portion 2614 of the focusing coil 261 is located on the fourth sidewall 2213. The first focusing coil portion 2611, the second focusing coil portion 2612, the third focusing coil portion 2613, and the fourth focusing coil portion 2614 of the focusing carrier 221 are adapted to the shapes of the first sidewall 2210, the second sidewall 2211, the third sidewall 2212, and the fourth sidewall 2213.

[0108] In a specific example of this application, the first sidewall 2210 and the third sidewall 2212 are concave structures, and the first sidewall 2210 and the third sidewall 2212 have openings facing the optical axis. The first sidewall 2210 and the third sidewall 2212 are symmetrically arranged with respect to the through holes of the focusing carrier 22. The second sidewall 2211 and the fourth sidewall 2213 are planar structures, and the second sidewall 2211 and the fourth sidewall 2213 are symmetrically arranged with respect to the through holes of the focusing carrier 22.

[0109] Furthermore, such as Figure 2 As shown, in one embodiment of this application, the driving device 20 further includes a magnetic conductor 28, which is disposed between the magnet portion 25 and the anti-shake frame 23 to enhance the magnetic field strength of the magnet portion 25. The magnetic conductor 28 includes a first magnetic conductor 281, a second magnetic conductor 282, and a third magnetic conductor 283. The first magnetic conductor 281 acts on the first magnet 251, the second magnetic conductor 282 acts on the second magnet 252, and the third magnetic conductor 283 acts on the third magnet 253. In one specific example of this application, the magnetic conductor 28 is fixed to the magnet mounting groove 232 of the anti-shake frame 23 by means of bonding or the like; in another specific example of this application, the magnetic conductor 28 is embedded into the frame body 231 of the anti-shake frame 23 by processes such as insert molding.

[0110] The first magnetic conductive element 281 is disposed on the side of the first magnet 251 away from the first image stabilization coil 271, that is, the first magnetic conductive element 281 is disposed above the first magnet 251. This arrangement allows the magnetic field lines of the first magnet 251 to concentrate downwards, thereby increasing the magnetic field strength of the first magnet 251. It also prevents the magnetic force of the first magnet 251 from overflowing, thus avoiding interaction between the first magnet 251 and the focusing coil 261 and preventing asymmetric forces on the focusing carrier 22. In one specific example of this application, the first magnetic conductive element 281 has a U-shaped structure with an opening facing the first image stabilization coil 271. The first magnetic conductive element 281 can cover the top and sides of the first magnet 251 to prevent the magnetic force of the first magnet 251 from overflowing. In another specific example of this application, the first magnetic conductive element 281 has a planar structure, only covering the top surface of the first magnet 251.

[0111] The second magnetic conductor 282 is disposed on the side of the second magnet 252 away from the focusing coil 261, that is, the second magnetic conductor 282 is disposed on the side of the second magnet 252 away from the second focusing coil portion 2612, thereby increasing the magnetic field strength of the side of the second magnet 252 facing the focusing coil 261. The third magnetic conductor 283 is disposed on the side of the third magnet 253 away from the focusing coil 261, that is, the third magnetic conductor 283 is disposed on the side of the third magnet 253 away from the fourth focusing coil portion 2614, thereby increasing the magnetic field strength of the side of the third magnet 253 facing the focusing coil 261. Furthermore, the second magnet 252 can also be fixed to the second magnetic conductor 282 by magnetic attraction, or the second magnet 252 can be more firmly attracted to the frame body 231 by magnetic attraction. The third magnet 253 can also be fixed to the third magnetic conductor 283 or more firmly attracted to the frame body 231 by magnetic attraction.

[0112] It is understood that in this application, the magnetic conductive element 28 may not contain magnetism. For example, the magnetic conductive element 28 may be made of ferrite, or the magnetic conductive element 28 itself may be a permanent magnet. This application does not impose any restrictions on this.

[0113] like Figure 2 , Figure 4 , Figures 7 to 11As shown, in one embodiment of this application, a suspension portion 24 is disposed in the focusing carrier 22, the image stabilization frame 23, and the base 212, such that the focusing carrier 22 is suspended in the image stabilization frame 23, and the image stabilization frame 23 is suspended in the base 212. The suspension portion 24 includes a first suspension portion 241 and a side suspension portion 242. The first suspension portion 241 connects the focusing carrier 22 and the image stabilization frame 23, and is used to restrict the movement of the focusing carrier 22 along the optical axis direction. The focusing carrier 22 is suspended within the image stabilization frame 23 by the first suspension portion 241. The side suspension portion 242 connects the image stabilization frame 23 and the base 212, and is used to restrict the movement of the image stabilization frame 23 along directions perpendicular to the optical axis (X-axis and Y-axis directions). The image stabilization frame 23 is suspended within the base 212 by the side suspension portion 242.

[0114] Specifically, in one embodiment of this application, the first suspension portion 241 includes a first spring 2414 and a second spring 2415 disposed at intervals along the optical axis in the driving device 20. The first spring 2414 is disposed on the object side of the focusing carrier 22, and the second spring 2415 is disposed on the image side of the focusing carrier 22, so as to repositionably suspend the focusing carrier 22 in the image stabilization frame 23. The focusing carrier 22 is suspended in the image stabilization frame 23 under the action of the first spring 2414 and the second spring 2415.

[0115] The first spring 2414 and the second spring 2415 are in the form of a thin sheet structure. The first spring 2414 is connected to the top surface of the image stabilization frame 23 and the top surface of the focusing carrier 22, respectively. The second spring 2415 is connected to the bottom surface of the image stabilization frame 23 and the bottom surface of the focusing carrier 22, respectively, to support and limit the movement of the focusing carrier 22. This not only helps to improve the structural stability of the drive device 20, but also enables the focusing carrier 22 to move within a certain range of stroke.

[0116] More specifically, in one embodiment of this application, the first suspension portion 241 includes an outer contour 2411 fixed to the image stabilization frame 23, an inner contour 2412 fixed to the focusing carrier 22, and a deformable portion 2413 integrally connecting the outer contour 2411 and the inner contour 2412. The deformable portion 2413 extends bently from the outer contour 2411 to the inner contour 2412 to provide sufficient space for the movement of the focusing carrier 22. This not only ensures the movement range of the focusing carrier 22 but also reduces the driving resistance of the focusing carrier 22 and improves the optical focusing sensitivity of the driving device 20.

[0117] It is understandable that the longer the deformable portion 2413 is, the more bends it undergoes. Consequently, the deformation of the deformable portion 2413 after deformation is minimal, and it is easier for it to return to its original position after being stretched. In one specific example of this application, the deformable portion 2413 is an elastic linear structure made of an elastic material (such as rubber, plastic, etc.); in another specific example of this application, the deformable portion 2413 can also be an elastic linear structure made of a rigid material (such as metal, etc.).

[0118] The outer contour 2411 of the first spring 2414 is fixed to the top surface of the image stabilization frame 23, and the inner contour 2412 of the first spring 2414 is fixed to the top surface of the focusing carrier 22. The deformable portion 2413 of the first spring 2414 integrally connects the outer contour 2411 and the inner contour 2412 of the first spring 2414. The outer contour 2411 of the second spring 2415 is fixed to the bottom surface of the image stabilization frame 23, and the inner contour 2412 of the second spring 2415 is fixed to the bottom surface of the focusing carrier 22. The deformable portion 2413 of the second spring 2415 integrally connects the outer contour 2411 and the inner contour 2412 of the second spring 2415. This arrangement allows the focusing carrier 22 to be clamped between the first spring 2414 and the second spring 2415, thus suspending the focusing carrier 22 within the image stabilization frame 23.

[0119] The inner contour 2412 and outer contour 2411 of the first spring 2414 can be fixedly attached to the focusing carrier 22 and the image stabilization frame 23 by means of, but not limited to, bonding or thermal riveting; the inner contour 2412 and outer contour 2411 of the second spring 2415 can be fixedly attached to the focusing carrier 22 and the image stabilization frame 23 by means of, but not limited to, bonding or thermal riveting. When the focusing carrier 22 is driven to move along the Z-axis, the first spring 2414 and the second spring 2415 deform to accumulate elastic force. When the focusing carrier 22 is stopped from moving, the elastic force accumulated by the first spring 2414 and the second spring 2415 is released, thereby driving the focusing carrier 22 back to its original position.

[0120] Furthermore, in one embodiment of this application, the first spring 2414 may have an integral structure, while the second spring 2415 may have a separate structure. The second spring 2415 can be used to enable the circuit of the driving device 20. During installation, the first spring 2414 can maintain good consistency, resulting in less installation tolerance across its entire plane. In another embodiment of this application, the first spring 2414 and the second spring 2415 may both have separate structures, and both can be used to enable the circuit of the driving device 20.

[0121] The first spring 2414 has a symmetrical structure. When the focusing carrier 22 moves along the Z-axis, the symmetrical first spring 2414 can suppress the focusing carrier 22 from rotating around the Z-axis. In one specific example of this application, the first spring 2414 has a split structure, which includes four first spring components disposed at the four corners of the focusing carrier 22 and the image stabilization frame 23 to provide more stable support for the focusing carrier 22 and to provide symmetrical restoring force for the focusing carrier 22. In another specific example of this application, the first spring 2414 has a split structure, which includes two first spring components symmetrically disposed between the focusing carrier 22 and the image stabilization frame 23; or, in yet another specific example of this application, the first spring 2414 has an integral structure, which has a common inner contour 2412, four outer contours 2411, and four deformable parts 2413.

[0122] The second spring 2415 has a symmetrical structure. When the focusing carrier 22 moves along the Z-axis, the symmetrical second spring 2415 can suppress the focusing carrier 22 from rotating around the Z-axis. In a specific example of this application, the second spring 2415 has a split structure, which includes two axisymmetrically arranged parts, namely the first lower spring 24151 and the second lower spring 24152. The axisymmetric second spring 2415 can further improve the flatness of the second spring 2415, thereby reducing the tilt tolerance of the driving device 20 and improving the assembly accuracy of the driving device 20. In a specific example of this application, the first lower spring 24151 and the second lower spring 24152 extend along the length direction of the second magnet 252 and the third magnet 253, and the first lower spring 24151 and the second lower spring 24152 are symmetrically distributed with respect to the centerline of the first magnet 251. That is, the first lower spring 24151 and the second lower spring 24152 are symmetrically arranged on the bottom surface of the focusing carrier 22.

[0123] In one embodiment of this application, each part of the second spring 2415, namely the first lower spring 24151 and the second lower spring 24152, has two outer contours 2411, two deformable portions 2413, and one inner contour 2412. One end of the inner contour 2412 is connected to a deformable portion 2413, and the other end of the deformable portion 2413 is connected to an outer contour 2411. The other end of the inner contour 2412 is connected to another deformable portion 2413, and the other end of the deformable portion 2413 is connected to another outer contour 2411. That is, the structure of the first lower spring 24151 and the second lower spring 24152 is: outer contour 2411, deformable portion 2413, inner contour 2412, deformable portion 2413, and outer contour 2411.

[0124] Specifically, the first lower spring 24151 of the second spring 2415 includes a first outer contour 2411a, a second outer contour 2411b, a first inner contour 2412a, a first deformable portion 2413a connecting the first inner contour 2412a and the first outer contour 2411a, and a second deformable portion 2413b connecting the first inner contour 2412a and the second outer contour 2411b.

[0125] The first inner contour 2412a is fixed to the focusing carrier 22, and the first outer contour 2411a and the second outer contour 2411b are fixed to the image stabilization frame 23. In a specific example of this application, the first outer contour 2411a and the second outer contour 2411b are fixed to opposite sides of the image stabilization frame 23, such as the first side 201 and the opposite third side 203.

[0126] The second lower spring 24152 of the second spring 2415 includes a third outer contour 2411c, a fourth outer contour 2411d, a second inner contour 2412b, a third deformable portion 2413c connecting the second inner contour 2412b and the third outer contour 2411c, and a fourth deformable portion 2413d connecting the second inner contour 2412b and the fourth outer contour 2411d. The second inner contour 2412b is fixed to the focusing carrier 22, and the third outer contour 2411c and the fourth outer contour 2411d are fixed to the image stabilization frame 23. In a specific example of this application, the third outer contour 2411c and the fourth outer contour 2411d are fixed to opposite sides of the image stabilization frame 23, such as the first side 201 and the opposite third side 203.

[0127] The first lower spring 24151 and the second lower spring 24152 of the second spring 2415 are positioned opposite each other on the side near the second magnet 252 and the third magnet 253. The second magnet 252 and the third magnet 253 are positioned on opposite sides of the focusing coil 261. When the focusing coil 261 is energized, the second magnet 252 and the third magnet 253 interact with the focusing coil 261, generating a symmetrical force that drives the focusing coil 261 and the focusing carrier 22 to move along the optical axis. The first lower spring 24151 and the second lower spring 24152 of the second spring 2415 can thus generate a symmetrical restoring force, allowing the focusing carrier 22 to move smoothly.

[0128] like Figure 10 and Figure 11As shown, in one embodiment of this application, a side suspension portion 242 is disposed on the sidewall of the anti-shake frame 23 and the base 212. A first spring piece 2414 is disposed on the top surface of the anti-shake frame 23, and a second spring piece 2415 is disposed on the bottom surface of the anti-shake frame 23. The side suspension portion 242 extends from the bottom surface of the anti-shake frame 23 to the side surface of the anti-shake frame 23. One end of the side suspension portion 242 is connected to the anti-shake frame 23, and the other end of the side suspension portion 242 is connected to the base 212 to support and limit the anti-shake frame 23. This not only helps to improve the structural stability of the drive device 20, but also enables the anti-shake frame 23 to move and reset within a certain stroke range.

[0129] Among them, reference Figures 7 to 10 The side suspension portion 242 includes at least two side springs. Each side spring includes a first connecting end 2425 connected to the image stabilization frame 23, a second connecting end 2426 connected to the base 212, and an elastic deformation portion 2427 integrally connected to the first connecting end 2425 and the second connecting end 2426. The elastic deformation portion 2427 includes multiple interconnected bending segments extending in the X direction and multiple interconnected bending segments extending in the Y direction, wherein the multiple interconnected bending segments extending in the X direction and the multiple interconnected bending segments extending in the Y direction are interconnected. When the elastic deformation portion 2427 is stretched in the X and Y directions, it deforms to generate corresponding restoring forces in the X and Y directions, causing the image stabilization frame 23 to return to its original position (the original position being the position of the image stabilization frame 23 before movement) under the action of the side suspension portion 242.

[0130] The side suspension portion 242 has a planar structure 242a and a vertical structure 242b that are perpendicular or approximately perpendicular to each other. A first connecting end 2425 and a second connecting end 2426 extend horizontally to form the planar structure 242a, and an elastically deformable portion 2427 extends vertically to form the vertical structure 242b. That is, the side suspension portion 242 includes a planar structure 242a connecting the anti-shake frame 23 and the base 212, and a vertical structure 242b that bends from the planar structure 242a and extends vertically. In a specific example of this application, the planar structure 242a extends horizontally and integrally connects to the second spring piece 2415, while the vertical structure 242b bends from the planar structure 242a and extends vertically. Alternatively, multiple side spring pieces are formed by bending upwards along the vertical direction from the horizontal plane where the second spring piece 2415 is located.

[0131] A bend 2428 is provided between the first connecting end 2425 and the elastic deformation part 2427, and a bend 2428 is provided between the second connecting end 2426 and the elastic deformation part 2427, so as to bend the side suspension part 242 from the horizontal direction to the vertical direction.

[0132] In one embodiment of this application, the side suspension portion 242 includes four side springs. Two of the four side springs are disposed on one side of the image stabilization frame 23, and the other two side springs are symmetrically disposed on the opposite side of the image stabilization frame 23. For example, in a specific example of this application, two of the four side springs are disposed on a first side 201, and the other two side springs are symmetrically disposed on a third side 203 opposite to the first side 201.

[0133] Furthermore, in one embodiment of this application, the elastic deformation portions 2427 of the four side springs are symmetrically arranged on one side of the anti-shake frame 23 where the first magnet 251 is located and on the other side opposite to that side, such as the first side 201 and the third side 203.

[0134] In this embodiment, the planes containing the elastic deformation portions 2427 of two side springs located on the same side coincide with each other; the planes containing the elastic deformation portions 2427 of two side springs located on opposite sides are parallel to each other. For example, in a specific example of this application, the elastic deformation portions 2427 of two of the four side springs are located on the first side 201, and the elastic deformation portions 2427 of the two side springs on this side coincide with each other; the elastic deformation portions 2427 of the other two of the four side springs are located on the third side 203, and the elastic deformation portions 2427 of the two side springs on this side coincide with each other; the plane containing the elastic deformation portion 2427 of one side spring located on the first side 201 is parallel to the plane containing the elastic deformation portion 2427 of one side spring located on the third side 203.

[0135] The plane containing the vertical structure 242b formed by the elastic deformation portion 2427 of each side spring is parallel to the length direction of the first magnet 251. Viewed along the height direction, the length direction of the vertical structure 242b formed by the elastic deformation portion 2427 of each side spring is the same as the length direction of the first magnet 251.

[0136] like Figure 8A and Figure 8B As shown, Figure 8B yes Figure 8A An enlarged schematic diagram of the circular region A, viewed from the height direction (i.e., from a top-down perspective), shows that the vertical structure 242b has a certain width W1 along the length direction of the first magnet 251, and a certain width W2 along the width direction of the first magnet 252 (or along the length direction of the second magnet 252 and the third magnet 253). The width W1 of the vertical structure 242b along the length direction of the first magnet 251 is greater than the width W2 of the vertical structure 242b along the length direction of the second magnet 252 or the third magnet 253, that is, W1 > W2.

[0137] The length direction of the first magnet 251 is the X-axis direction, and the length direction of the second magnet 252 or the third magnet 253 is the Y-axis direction. Therefore, the width of the elastically deformable portion 2427 of the side suspension portion 242 is different along the X-axis and Y-axis directions. Consequently, the K-value of the elastically deformable portion 2427 in the X-axis direction and the K-value in the Y-axis direction differ significantly. Looking at its plane along the height direction, the K-value is smaller in the direction where the elastically deformable portion 2427 has a smaller width, and larger in the direction where the elastically deformable portion has a larger width.

[0138] Specifically, when viewed from above along the height direction, the direction in which the elastic deformation portion 2427 has a smaller width is the same as the direction in which the anti-shake coil portion 27 drives the first magnet 251 to move; the direction in which the elastic deformation portion 2427 has a larger width is the same as the direction in which the anti-shake coil portion 27 drives the second magnet 252 or the third magnet 253 to move.

[0139] In a specific example of this application, the elastic deformation portion 2427 of the side suspension portion 242 has a smaller width along the Y-axis direction and a smaller K value, so it can deform under a smaller driving force. Therefore, a first magnet 251 is arranged along the X-axis direction, and the first magnet 251 and the first anti-shake coil 271 interact to generate a driving force along the Y-axis direction to drive the elastic deformation portion 2427 to deform. The elastic deformation portion 2427 of the side suspension portion 242 has a larger width along the X-axis direction, so it can deform under a larger driving force. Therefore, a second magnet 252 and a third magnet 253 are arranged along the Y-axis direction, and the second magnet 252 and the third magnet 253 interact with the second anti-shake coil 272 and the third anti-shake coil 273 to generate a driving force along the X-axis direction to drive the elastic deformation portion 2427 to deform.

[0140] Furthermore, looking at its plane along the height direction, the direction in which the elastic deformation portion 2427 has a smaller width is the same as the direction in which the first magnet 251 is driven; the direction in which the elastic deformation portion 2427 has a larger width is the same as the direction in which the second magnet 252 or the third magnet 253 is driven. In a specific example of this application, the direction in which the elastic deformation portion 2427 has a smaller width is the Y-axis direction, and the direction in which the driving force generated by the interaction between the first magnet 251 and the first anti-shake coil 271 is the Y-axis direction; the direction in which the elastic deformation portion 2427 has a larger width is the X-axis direction, and the direction in which the driving force generated by the interaction between the second magnet 252, the third magnet 253, and the second anti-shake coil 272, the third anti-shake coil 273 is the X-axis direction.

[0141] This arrangement allows the magnets positioned in the X and Y axes to be determined based on the thickness of the elastically deformable portion 2427. On one hand, this makes fuller use of the functions of each part of the side suspension portion 242. On the other hand, when the drive device 20 in this embodiment is applied to the array module, the camera module 1 in this embodiment can place the camera module unit of another array module at close range without interference. This arrangement also helps to reduce costs.

[0142] In this application, each side spring of the side suspension portion 242 can be integrally connected to the first spring 2414 or the second spring 2415. It is understood that each side spring of the side suspension portion 242 can be formed by bending it again after being integrally formed with the first spring 2414 or the second spring 2415, or each side spring of the side suspension portion 242 can be manufactured first and then connected to the first spring 2414 or the second spring 2415 by welding or other means. This application does not limit this.

[0143] However, when the side suspension portion 242 is integrated with the first spring piece 2414, the side suspension portion 242 is closer to the object side of the drive device 20, and the bearing surface of the side suspension portion 242 is higher. If the height of the base 212 is low, the elastic deformation portion 2427 of the side suspension portion 242 needs to be extended to a longer length so that the second connecting end 2426 of the side suspension portion 242 can be connected to the base 212. This would result in a very long extension of the elastic deformation portion 2427 of the side suspension portion 242, which would have lower controllability and be more difficult to manufacture. If the height of the base 212 is increased and extended towards the object side, the reliability of the base 212 would be lower, which would in turn reduce the reliability of the entire drive device 20. Furthermore, if the circuit of the drive device 20 is connected through the first spring piece 2414 and the side suspension portion 242, the conductive structure would be more complex, increasing the cost.

[0144] In this application, a structure is adopted in which the side suspension part 242 and the second spring piece 2415 are connected as one unit. That is, the side suspension part 242 and the second spring piece 2415 are connected as one unit. The side suspension part 242 extends from the image side of the drive device 20 towards the object side. The side suspension part 242 extends from the bottom surface of the image stabilization frame 23 to the side surface of the image stabilization frame 23. The image stabilization frame 23 is suspended in the base 212 under the action of the side suspension part 242. Further, the second connecting end 2426 of the side suspension part 242 is fixedly attached to the base boss 2123 of the base 212 by means of, but not limited to, bonding or thermal riveting. The first connecting end 2425 of the side suspension part 242 is indirectly fixed to the image stabilization frame 23 by connecting to the second spring piece 2415.

[0145] Specifically, the plane on the base boss 2123 where the second connecting end 2426 is located is lower than the plane on the anti-shake frame 23 where the first connecting end 2425 is located. This arrangement allows the side suspension part 242 to rest on the base 212 at a lower position, making the molding of the base 212 simpler and more reliable.

[0146] Furthermore, the side suspension portion 242 extends to a height lower than the top surface of the anti-shake frame 23 on the side of the anti-shake frame 23. This means that when the side suspension portion 242 is integrated with the second spring piece 2415, the extension length of the elastic deformation portion 2427 of the side suspension portion 242 along the height direction can be further shortened, thereby increasing the controllability of the side suspension portion 242 and simplifying its manufacturing process. Of course, since the second spring piece 2415 is closer to the base 212, a simpler conductive structure can be used to achieve circuit conduction of the drive device 20.

[0147] It is understood that the elastic deformation portion 2427 of the side suspension portion 242 in this application extends toward the object side in the height direction. Since the extension height of the elastic deformation portion 2427 is relatively short, compared with the prior art, this application eliminates the need to provide damping glue at the top of the elastic deformation portion 2427, thereby reducing the space required to provide damping glue in the drive device 20, and thus realizing the reduction of the size of the drive device 20.

[0148] The side suspension portion 242 and the second spring piece 2415 are an integral structure. Bending the side suspension portion 242 can significantly increase the K-value (elastic coefficient) of both the side suspension portion 242 and the second spring piece 2415, thereby supporting the entire image stabilization frame 23 and suspending it within the base 212. Furthermore, the elastic deformation portion 2427 of the side suspension portion 242 can extend to a smaller height, which helps reduce costs.

[0149] like Figure 7 and Figure 9As shown, in one embodiment of this application, the side suspension portion 242 includes a first side spring 2421, a second side spring 2422, a third side spring 2423, and a fourth side spring 2424. The first side spring 2421, the second side spring 2422, and the first lower spring 24151 of the second spring 2415 are connected together to form a first lower suspension assembly 2401. The third side spring 2423, the fourth side spring 2424, and the second lower spring 24152 of the second spring 2415 are connected together to form a second lower suspension assembly 2402. The first lower suspension assembly 2401 and the second lower suspension assembly 2402 are symmetrically arranged. Specifically, the first side spring 2421 and the second side spring 2422 are disposed on one side of the driving device 20, and the third side spring 2423 and the fourth side spring 2424 are disposed on the opposite side of the driving device 20, so that the anti-shake frame 23 is subjected to a symmetrical restoring force after movement. In a specific example of this application, the first side spring 2421 and the second side spring 2422 are respectively located on the side closer to the second magnet 252, and the third side spring 2423 and the fourth side spring 2424 are respectively located on the side closer to the third magnet 253. That is, the first lower suspension assembly 2401 extends along the length direction of the second magnet 252, the second lower suspension assembly 2402 extends along the length direction of the third magnet 253, and the first lower suspension assembly 2401 and the second lower suspension assembly 2402 are symmetrical to each other.

[0150] Specifically, the first connecting end 2425 of the first side spring 2421 is indirectly connected to the image stabilization frame 23 via the first outer contour 2411a of the second spring 2415, and the second connecting end 2426 of the first side spring 2421 is directly connected to the base 212; the first connecting end 2425 of the second side spring 2422 is indirectly connected to the image stabilization frame 23 via the second outer contour 2411b of the second spring 2415, and the second connecting end 2426 of the second side spring 2422 is connected to the base 212. The first connecting end 2425 of the third side spring 2423 is indirectly connected to the image stabilization frame 23 through the third outer contour 2411c of the second spring 2415, and the second connecting end 2426 of the third side spring 2423 is directly connected to the base 212; the first connecting end 2425 of the fourth side spring 2424 is indirectly connected to the image stabilization frame 23 through the fourth outer contour 2411d of the second spring 2415, and the second connecting end 2426 of the fourth side spring 2424 is directly connected to the base 212.

[0151] The second connecting end 2426 of the first side spring 2421, the second connecting end 2426 of the second side spring 2422, the second connecting end 2426 of the third side spring 2423, and the second connecting end 2426 of the fourth side spring 2424 are fixed to the base boss 2123, so that the first side spring 2421, the second side spring 2422, the third side spring 2423, and the fourth side spring 2424 are connected to the base 212.

[0152] refer to Figure 9 In one embodiment of this application, at least a portion of the second spring 2415 and at least a portion of the side suspension portion 242 form a lower suspension assembly. Alternatively, the drive device 20 includes at least one lower suspension assembly, which includes a lower spring and at least two side springs integrally connected to the lower spring. The at least one lower suspension assembly is disposed between the base 212 and the anti-shake frame 23 to support and limit the anti-shake frame 23. It is understood that in this application, the structures of the lower spring and the two side springs can all utilize the aforementioned structures of the side suspension portion 242 and the second spring 2415.

[0153] The device comprises at least two lower suspension components, which are symmetrically arranged on the bottom surface of the stabilization frame 23. The stabilization frame 23 is suspended within the base 212 by the lower suspension components. When the drive component moves the stabilization frame 23 relative to the base 212, at least two side springs of the lower suspension components deform to accumulate elastic force. When the drive on the stabilization frame 23 is stopped, the elastic force accumulated by the at least two side springs of the lower suspension components is released, thereby causing the stabilization frame 23 to return to its original position.

[0154] In a specific example of this application, there are two lower suspension components, including a first lower suspension component 2401 and a second lower suspension component 2402. The lower spring includes a first lower spring 24151 and a second lower spring 24152, and at least two side springs include a first side spring 2421, a second side spring 2422, a third side spring 2423, and a fourth side spring 2424. The first side spring 2421, the second side spring 2422, and the first lower spring 24151 are connected together to form the first lower suspension component 2401; the third side spring 2423, the fourth side spring 2424, and the second lower spring 24152 are connected together to form the second lower suspension component 2402. The first lower suspension component 2401 and the second lower suspension component 2402 are symmetrically arranged between the image stabilization frame 23 and the base 212 to provide a more symmetrical restoring force for the image stabilization frame 23.

[0155] It is understood that in this application, at least two side springs include a planar structure 242a connecting the base 212 and the lower spring, an upright structure 242b bending from the planar structure 242a and extending along the height direction, and a bent portion 2428 connecting the planar structure 242a and the upright structure 242b, wherein the planar structures 242a of at least two side springs are located on the same side of the bent portion 2428. Alternatively, when at least one suspension assembly is laid flat on a horizontal surface, the planar structure 242a of each side spring is positioned on the same side of the upright structure 242b, and the upright structure 242b of each side spring is bent from the same side of the planar structure 242a in the same direction. This arrangement can improve the consistency and flatness of the at least one suspension assembly.

[0156] The lower spring is disposed between at least two side springs. The lower spring includes an inner contour 2412, two deformable portions 2413 connected to the inner contour 2412, and two outer contours 2411 connected to the two deformable portions 2413. The planar structures 242a of the two side springs extend in the same direction and are respectively connected to the two outer contours 2411.

[0157] Specifically, each side spring includes a first connecting end 2425 connected to the outer contour 2411 of the lower spring 2415, a second connecting end 2426 connected to the base 212, and an elastic deformation portion 2427 integrally connecting the first connecting end 2425 and the second connecting end 2426. The first connecting end 2425 and the second connecting end 2426 extend in the horizontal direction to form a planar structure 242a, and the elastic deformation portion 2427 extends in the height direction to form a vertical structure 242b.

[0158] More specifically, a bending portion 2428 is provided between the first connecting end 2425 and the elastic deformation portion 2427, and a bending portion 2428 is provided between the second connecting end 2426 and the elastic deformation portion 2427. The bending portion 2428 bends each side spring piece from the horizontal direction to the same direction to extend in the height direction.

[0159] Continue to refer to Figure 9In one embodiment of this application, the planar structures 242a of the first side spring 2421 and the second side spring 2422 are both located on the same side of the bending portion 2428, and the first side spring 2421 and the second side spring 2422 are bent in the same direction; the planar structures 242a of the third side spring 2423 and the fourth side spring 2424 are both located on the same side of the bending portion 2428, and the third side spring 2423 and the fourth side spring 2424 are bent in the same direction. In another embodiment of this application, the planar structures 242a of the first side spring 2421, the second side spring 2422, the third side spring 2423, and the fourth side spring 2424 are all located on the same side of the bending portion 2428, and the first side spring 2421, the second side spring 2422, the third side spring 2423, and the fourth side spring 2424 are all bent in the same direction.

[0160] In this embodiment, two side springs integrated with the lower spring extend in the same direction, and the elastic deformation portions 2427 of the two side springs are located on the same side of the first connecting end 2425 and the second connecting end 2426. In other words, the bending directions of the elastic deformation portions 2427 of the two side springs are consistent. For example, in a specific example of this application, the planar structure 242a of the first side spring 2421 and the second side spring 2422 forming the first lower suspension assembly 2401 is disposed on the same side of the vertical structure 242b, that is, the first side spring 2421 and the second side spring 2422 bend in the same direction; the planar structure 242a of the third side spring 2423 and the fourth side spring 2424 forming the second lower suspension assembly 2402 is disposed on the same side of the vertical structure 242b, that is, the third side spring 2423 and the fourth side spring 2424 bend in the same direction.

[0161] It is understood that in this application, the planar structure 242a of the first side spring 2421, the second side spring 2422, the third side spring 2423, and the fourth side spring 2424 can also be set on the same side of the vertical structure 242b, that is, the first side spring 2421, the second side spring 2422, the third side spring 2423, and the fourth side spring 2424 are all bent in the same direction.

[0162] The structural design of bending in the same direction in this application effectively reduces the design difficulty of the bending fixture, making it easier to demold the side suspension part 242 or at least two side springs or lower suspension components, thereby improving yield and reducing cost. This is because in order to ensure that the elastic deformation part 2427 can be bent within 90°±3°, the fixture design must be bent more than 100° so that the elastic deformation part 2427 can be controlled to be around 90° after springback; if the bending direction of the elastic deformation part 2427 is inconsistent, it will cause demolding failure due to different bending directions of the fixture, resulting in a decrease in yield and an increase in cost.

[0163] In a specific example of this application, the first side spring 2421 and the second side spring 2422 extend along the Y-axis direction. The vertical structure 242b of the first side spring 2421 is located on the left side of the planar structure 242a, and the bent portion 2428 of the first side spring 2421 is located on the left side of the planar structure 242a. The vertical structure 242b of the second side spring 2422 is located on the left side of the planar structure 242a, and the bent portion 2428 of the second side spring 2422 is located on the left side of the planar structure 242a. The vertical structure 242b of the first side spring 2421 and the vertical structure 242b of the second side spring 2422 are bent from the left side of the planar structure 242a in the horizontal direction toward the height direction. In other words, the elastic deformation portion 2427 of the first side spring 2421 is located to the left of the first connecting end 2425 and the second connecting end 2426 of the first side spring 2421, and the elastic deformation portion 2427 of the second side spring 2422 is located to the left of the first connecting end 2425 and the second connecting end 2426 of the second side spring 2422. Both the elastic deformation portions 2427 of the first side spring 2421 and the elastic deformation portions 2427 of the second side spring 2422 are bent from the left side along the horizontal direction toward the height direction. Of course, the elastic deformation portions 2427 of the first side spring 2421 and the elastic deformation portions 2427 of the second side spring 2422 can also be bent from the right side along the horizontal direction toward the height direction, and this application does not limit this.

[0164] Similarly, the third side spring 2423 and the fourth side spring 2424 extend along the Y-axis. The vertical structure 242b of the third side spring 2423 is located on the left side of the planar structure 242a, and the bent portion 2428 of the third side spring 2423 is located on the left side of the planar structure 242a. The vertical structure 242b of the fourth side spring 2424 is located on the left side of the planar structure 242a, and the bent portion 2428 of the fourth side spring 2424 is located on the left side of the planar structure 242a. The vertical structures 242b of the third side spring 2423 and the fourth side spring 2424 bend from the left side of the planar structure 242a in the horizontal direction toward the height direction. In other words, the elastic deformation portion 2427 of the third side spring 2423 is located to the left of the first connecting end 2425 and the second connecting end 2426 of the third side spring 2423, and the elastic deformation portion 2427 of the fourth side spring 2424 is located to the left of the first connecting end 2425 and the second connecting end 2426 of the fourth side spring 2424. Both the elastic deformation portions 2427 of the third side spring 2423 and the fourth side spring 2424 are bent from the left side along the horizontal direction toward the height direction. Of course, the elastic deformation portions 2427 of the third side spring 2423 and the fourth side spring 2424 can also be bent from the right side along the horizontal direction toward the height direction; this application does not limit this. Figure 7 , Figure 8A and Figure 10As shown, the plane where the elastic deformation portion 2427 of the first side spring 2421 is located is parallel to the plane where the elastic deformation portion 2427 of the second side spring 2422 is located, the plane where the elastic deformation portion 2427 of the third side spring 2423 is located is parallel to the plane where the elastic deformation portion 2427 of the fourth side spring 2424 is located, and the elastic deformation portions 2427 of the four side springs are provided on one side where the first magnet 251 is located and on the other side opposite to that side.

[0165] The elastic deformation portion 2427 of the first side spring 2421 is located on the side where the first magnet 251 is located, for example, the first side 201. The plane where the elastic deformation portion 2427 of the first side spring 2421 is located is parallel to the length direction of the first magnet 251. The elastic deformation portion 2427 of the second side spring 2422 is located on the opposite side to the side where the first magnet 251 is located, for example, the third side 203 opposite to the first side 201. The plane where the elastic deformation portion 2427 of the second side spring 2422 is located is parallel to the plane where the elastic deformation portion 2427 of the first side spring 2421 is located. The first lower spring 24152 is located on the bottom surface of the image stabilization frame 23 and close to the fourth side 204.

[0166] Furthermore, the elastic deformation portion 2427 of the third side spring 2423 is located on the side where the first magnet 251 is located, for example, the first side 201, and the plane where the elastic deformation portion 2427 of the third side spring 2423 is located is parallel to the length direction of the first magnet 251; the elastic deformation portion 2427 of the fourth side spring 2424 is located on the side opposite to the side where the first magnet 251 is located, for example, the third side 203 opposite to the first side 201, and the plane where the elastic deformation portion 2427 of the fourth side spring 2424 is located is parallel to the plane where the elastic deformation portion 2427 of the third side spring 2423 is located; the second lower spring 24151 is located on the bottom surface of the image stabilization frame 23 and close to the second side 202.

[0167] In other words, the first side spring 2421 and the third side spring 2423 are disposed on the same side of the first magnet 251, and the second side spring 2422 and the fourth side spring 2424 are disposed on the opposite side of the first magnet 251. The planes where the elastic deformation portion 2427 of the first side spring 2421, the second side spring 2422, the third side spring 2423, and the fourth side spring 2424 are located are parallel to the length direction of the first magnet 251, so as to provide a more symmetrical restoring force for the image stabilization frame 23.

[0168] It is worth mentioning that, in this application, the circuit of the driving device 20 can be turned on by the second side spring 2422 and the fourth side spring 2424 disposed on the opposite side of the first magnet 251, which can improve the space utilization of the driving device 20. Of course, the circuit of the driving device 20 can also be turned on by the first side spring 2421, the second side spring 2422, the third side spring 2423 and the fourth side spring 2424, and this application does not limit it.

[0169] Among them, such as Figure 4 As shown, the frame body 231 further includes a first constriction 2311, a second constriction 2312, a third constriction 2313, and a fourth constriction 2314 disposed at its four corners. The first constriction 2311, the second constriction 2312, the third constriction 2313, and the fourth constriction 2314 can be formed by inward recesses from the first side 201 and the third side 203, or by inward recesses from the second side 202 and the fourth side 204. The first constriction 2311, the second constriction 2312, the third constriction 2313, and the fourth constriction 2314 can provide placement space for the first side spring piece 2421, the second side spring piece 2422, the third side spring piece 2423, and the fourth side spring piece 2424, that is, the concave direction of the constriction is the same as the extension direction of the first side spring piece 2421, the second side spring piece 2422, the third side spring piece 2423, and the fourth side spring piece 2424.

[0170] Furthermore, the elastic deformation portions 2427 of the first side spring 2421, the second side spring 2422, the third side spring 2423, and the fourth side spring 2424 are disposed within the first constriction 2311, the second constriction 2312, the third constriction 2313, and the fourth constriction 2314 of the frame body 231 to prevent the elastic deformation portions 2427 of the four side springs from being damaged due to contact with the anti-shake frame 23 during deformation. That is, each side spring has only two fixed ends, and the endpoints of the elastic deformation portions 2427 of each side spring are suspended and do not contact other structures.

[0171] In summary, the focusing carrier 22 has a first spring 2414 extending horizontally on its object side, and a second spring 2415 extending horizontally and multiple side springs extending vertically and connected to the second spring 2415 on its image side. The multiple side springs are formed by bending upwards along the vertical direction from the horizontal plane containing the second spring 2415. The plane containing the multiple side springs is parallel to the focusing axis of the optical lens 10 installed in the driving device 20, i.e., parallel to the optical axis. Therefore, the elastic deformation direction of the multiple side springs is consistent with the radial direction of the optical lens 10, thus achieving image stabilization. Similarly, the first spring 2414 and the second spring 2415 are arranged along the radial direction of the optical lens 10, and their elastic deformation direction is consistent with the optical axis of the optical lens 10, thus achieving focusing.

[0172] like Figure 1 , Figure 2 , Figure 4 and Figure 11 As shown, in one embodiment of this application, the driving device 20 further includes a stabilization circuit board 29, which is disposed on the base 212. The stabilization coil part 27 is disposed on and electrically connected to the stabilization circuit board 29 to realize the circuit connection between the stabilization coil part 27 and the stabilization circuit board 29.

[0173] Furthermore, in one embodiment of this application, the side suspension portion 242 further includes an electrical connection portion 2429, which is integrally bent downward from the second connection end 2426 and extends to the image stabilization circuit board 29, so as to realize the circuit connection between the focus coil 261 and the image stabilization circuit board 29 through the second spring 2415 and the side suspension portion 242.

[0174] A focusing coil 261 is disposed on a focusing carrier 22. The side wall of the focusing carrier 22 has at least two winding posts 222. One end of the focusing coil 261 is wound around the focusing carrier 22, and the other end of the focusing coil 261 is wound around the winding posts 222. The focusing coil 261 disposed on the winding posts 222 can contact the second spring 2415. The second spring 2415 is integrally connected to the first connecting end 2425 of the side suspension part 242. The side suspension part 242 conducts current from the image stabilization circuit board 29 to the focusing coil 261 through the integrally connected second connecting end 2426 and the electrical connecting part 2429.

[0175] At least two side springs in the side suspension portion 242 are provided with electrical connection portions 2429. The side springs with electrical connection portions 2429 can be provided on the side opposite to the first magnet 251 to avoid interference with the placement of the first magnet 251 and improve the space utilization of the drive device 20. In a specific example of this application, the second side spring 2422 and the fourth side spring 2424, which are provided on the side opposite to the first magnet 251, are provided with electrical connection portions 2429. That is, the electrical connection portion 2429 of the second side spring 2422 extends downward integrally from the second connection end 2426 of the second side spring 2422 and is electrically connected to the anti-shake circuit board 29; the electrical connection portion 2429 of the fourth side spring 2424 extends downward integrally from the second connection end 2426 of the fourth side spring 2424 and is electrically connected to the anti-shake circuit board 29.

[0176] Since the second spring 2415 and multiple side springs are closer to the anti-shake circuit board 29, the complexity of the drive device 20 circuit can be reduced, thereby reducing costs.

[0177] Understandably, the image stabilization circuit board 29 can extend downwards and be electrically connected to the chip circuit board 32 of the photosensitive component 30 to enable circuit conduction of the driving device 20. Of course, the image stabilization circuit board 29 can also extend directly outwards to the motherboard of an electronic device (such as a mobile phone) and be directly electrically connected to the motherboard of the electronic device to enable separate control of the driving device 20 and the photosensitive component 30.

[0178] In one embodiment of this application, the driving device 20 further includes a position sensing unit (not shown), which may be a Hall element, a driving IC, or a TMR. The position sensing unit includes a focus position sensing unit (not shown) and an image stabilization position sensing unit (not shown). The focus position sensing unit is disposed opposite to the second magnet 252 or the third magnet 253. When the focusing carrier 22 moves, the relative position between the focus position sensing unit and the second magnet 252 or the third magnet 253 changes. Based on the strength of the magnetic field of the second magnet 252 or the third magnet 253 sensed by the focus position sensing unit, the position of the focusing carrier 22 can be determined, and the current of the focusing coil 261 can be adjusted to move the focusing carrier 22 to the desired position.

[0179] The image stabilization position sensing unit is disposed opposite to the first magnet 251 and opposite to the second magnet 252 or the third magnet 253. When the image stabilization frame 23 moves, the relative position of the image stabilization position sensing unit with the first magnet 251, the second magnet 252 or the third magnet 253 changes. Based on the strength of the magnetic field of the first magnet 251, the second magnet 252 or the third magnet 253 sensed by the image stabilization position sensing unit, the position of the image stabilization frame 23 can be determined, and then the current of the image stabilization coil unit 27 can be adjusted so that the image stabilization frame 23 moves to the required position.

[0180] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A driving device, characterized in that, include: Base; A stabilization frame, which is movably connected to the base; A focusing carrier, which is movably connected to the image stabilization frame; A magnet section is disposed on the image stabilization frame. The magnet section includes a first magnet, a second magnet, and a third magnet, with the second magnet and the third magnet disposed opposite to each other on both sides of the first magnet. A stabilization coil is disposed on the base and opposite to the magnet. The focusing coil section is disposed on the focusing carrier and opposite to the magnet section. The focusing coil section has a straight side section that is parallel to the length direction of the first magnet, and an oblique side section that is connected to the straight side section and forms a certain angle with the length direction of the first magnet.

2. The driving device according to claim 1, wherein, The driving device includes a first side, a second side, a third side and a fourth side arranged sequentially around its periphery. The first magnet is disposed on the first side, the second magnet is disposed on the second side, the third magnet is disposed on the fourth side, and the third side is not disposed on the fourth side.

3. The driving device according to claim 2, wherein, The focusing coil includes a first focusing coil portion located on the first side, a second focusing coil portion located on the second side, a third focusing coil portion located on the third side, and a fourth focusing coil portion located on the fourth side. The first focusing coil portion is within the magnetic field range of the first magnet, the second focusing coil portion is within the magnetic field range of the second magnet, and the fourth focusing coil portion is within the magnetic field range of the third magnet.

4. The driving device according to claim 3, wherein, The first focusing coil portion includes a straight edge segment and at least two inclined edge segments connected to the straight edge segment, wherein the distance from the straight edge segment to the first magnet is less than the distance from the two inclined edge segments to the first magnet.

5. The driving device according to claim 4, wherein, The length of the straight side segment is less than the length of the inclined side segment to reduce the effective reaction between the first magnet and the first focusing coil section.

6. The driving device according to claim 5, wherein, The focusing coil has a symmetrical structure, with the second focusing coil portion and the fourth focusing coil portion arranged symmetrically, and the first focusing coil portion and the third focusing coil portion arranged symmetrically.

7. The driving device according to claim 6, wherein, The image stabilization coil section includes a first image stabilization coil, a second image stabilization coil, and a third image stabilization coil. The first image stabilization coil is fixed to the base and faces the first magnet. The second image stabilization coil is fixed to the base and faces the second magnet. The third image stabilization coil is fixed to the base and faces the third magnet.

8. The driving device according to claim 7, wherein, The driving device includes a magnetic guide, which includes a first magnetic guide, a second magnetic guide, and a third magnetic guide. The first magnetic guide is disposed on the side of the first magnet away from the first image stabilization coil. The second magnetic guide is disposed on the side of the second magnet away from the second focusing coil portion. The third magnetic guide is disposed on the side of the third magnet away from the fourth focusing coil portion.

9. The driving device according to claim 8, wherein, The drive device includes a suspension part, which includes a first suspension part and a side suspension part. The first suspension part connects the focusing carrier and the image stabilization frame, and the focusing carrier is suspended in the image stabilization frame by the first suspension part. The side suspension part connects the image stabilization frame and the base, and the image stabilization frame is suspended in the base by the side suspension part.

10. A camera module, characterized in that, include: Photosensitive components; An optical lens, which is positioned on the light-sensing path of the photosensitive element; as well as The driving device according to any one of claims 1 to 9, wherein the driving device is adapted to drive the optical lens to move.

Images