Driving device and camera module

Abstract

The application discloses a driving device and a camera module, wherein the driving device comprises a fixed part, a shake reduction frame movably connected to the fixed part, a focusing carrier movably connected to the shake reduction frame, a magnet part arranged on the shake reduction frame, a focusing coil part arranged on the focusing carrier and opposite to the magnet part, a shake reduction coil part arranged on the fixed part and opposite to the magnet part, and a focusing position sensing part comprising a focusing position sensing element and a focusing position sensing magnet, the focusing position sensing element being arranged on one of the focusing carrier and the shake reduction frame, the focusing position sensing magnet being arranged on the other one of the focusing carrier and the shake reduction frame, and the focusing position sensing element and the focusing position sensing magnet being oppositely arranged along a height direction.

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 using a mobile electronic device to photograph subjects at different distances, the focusing function is achieved by adjusting the distance between the optical lens and the photosensitive component through a drive device.

[0004] Furthermore, when using mobile electronic devices for video recording, the physiological tremors that occur at a certain frequency under normal circumstances and the shaking caused by movement can lead to a decrease in video quality. Therefore, mobile electronic devices are usually equipped with image stabilization devices, which allow the optical lens to be shifted or rotated relative to the photosensitive component to achieve image stabilization.

[0005] 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

[0006] One objective of this application is to provide a driving device and a camera module that overcomes the shortcomings of the prior art, has excellent focusing and / or image stabilization functions, and is suitable for achieving clear imaging.

[0007] According to a first aspect of this application, a driving device is provided, comprising:

[0008] Fixing part;

[0009] A stabilization frame, which is movably connected to the fixing part;

[0010] A focusing carrier, which is movably connected to the image stabilization frame;

[0011] A magnet part is disposed on the anti-shake frame;

[0012] A focusing coil section is disposed on the focusing carrier and is opposite to the magnet section;

[0013] The image stabilization coil portion is disposed on the fixing portion and opposite to the magnet portion; and

[0014] The focus position sensing unit includes a focus position sensing element and a focus position sensing magnet. The focus position sensing element is disposed in one of the focus carrier and the image stabilization frame, and the focus position sensing magnet is disposed in the other of the focus carrier and the image stabilization frame. The focus position sensing element and the focus position sensing magnet are disposed opposite to each other in the height direction.

[0015] In some embodiments, the focusing carrier includes a carrier body and a side extension, the side extension extending outward from the carrier body, the focusing position sensing element being fixed to the side extension, the focusing position sensing magnet being fixed to the top of the image stabilization frame, and the focusing position sensing element being located above the focusing position sensing magnet.

[0016] In some embodiments, the magnet portion includes a first magnet, the anti-shake coil portion includes a first anti-shake coil, and the first anti-shake coil is fixed to the fixing portion and is opposite to the first magnet.

[0017] In some embodiments, the magnet portion further includes a second magnet and a third magnet, the second magnet and the third magnet being disposed opposite each other on both sides of the first magnet; the focusing coil portion includes a first focusing coil and a second focusing coil, the first focusing coil being fixed to the focusing carrier and opposite to the second magnet, the second focusing coil being fixed to the focusing carrier and opposite to the third magnet; the image stabilization coil portion further includes a second image stabilization coil and a third image stabilization coil, the second image stabilization coil being fixed to the fixing portion and opposite to the second magnet, and the third image stabilization coil being fixed to the fixing portion and opposite to the third magnet.

[0018] In some embodiments, the focus position sensing unit and the first magnet are located on the same side of the focus carrier, and the focus position sensing magnet is disposed above the first magnet.

[0019] In some embodiments, the first magnet includes a first magnetic portion and a second magnetic portion, the first magnetic portion and the second magnetic portion are stacked, the second magnetic portion is located on the side of the first magnetic portion away from the focusing carrier, and the magnetic pole direction of the focusing position sensing magnet is the same as the magnetic pole direction of the first magnetic portion.

[0020] In some embodiments, the height of the top surface of the first magnet is lower than the height of the top surfaces of the second magnet and the third magnet.

[0021] In some embodiments, the image stabilization frame further includes a frame body and a first magnetic conductor fixed to the frame body, the first magnetic conductor being disposed between the focus position sensing magnet and the first magnet.

[0022] In some embodiments, the drive device further includes a suspension portion and a support portion, the suspension portion connecting the focusing carrier and the image stabilization frame so that the focusing carrier is suspended in the image stabilization frame, and the support portion being disposed between the image stabilization frame and the fixing portion, the image stabilization frame being supported by the support portion on the fixing portion.

[0023] According to a second aspect of this application, a camera module is provided, comprising:

[0024] Photosensitive components;

[0025] An optical lens, the optical lens being held in the light-sensing path of the photosensitive element; and

[0026] A driving device, wherein the driving device is adapted to drive the optical lens to move.

[0027] According to one aspect of this application, a driving device is provided, comprising:

[0028] A base, the base including a base body and a magnetic suction assembly disposed on the base body;

[0029] A stabilization frame, which is movably connected to the base;

[0030] The image stabilization coil is disposed on the base body; and

[0031] A magnet section is disposed on the image stabilization frame, and the magnet section is disposed opposite to the image stabilization coil section. 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.

[0032] The magnetic attraction component is positioned opposite the second magnet and the third magnet only along the height direction.

[0033] In some embodiments, the magnetic attraction assembly includes a first magnetic attraction part and a second magnetic attraction part, wherein the first magnetic attraction part and the second magnet are disposed opposite to each other along the height direction, and the second magnetic attraction part and the third magnet are disposed opposite to each other along the height direction.

[0034] In some embodiments, the first magnetic attraction part interacts with the second magnet to generate a first magnetic attraction force, and the second magnetic attraction part interacts with the third magnet to generate a second magnetic attraction force. The first magnetic attraction force and the second magnetic attraction force are mutually symmetrical forces.

[0035] In some embodiments, the first magnetic attraction part and the second magnetic attraction part are disposed on opposite sides of the base body and do not extend to the corners of the base body.

[0036] In some embodiments, the first magnetic attraction part and the second magnetic attraction part are provided on the side of the base body opposite to the second magnet and the third magnet, and the first magnetic attraction part and the second magnetic attraction part are not provided on the side of the base body opposite to the first magnet. The first magnetic attraction part and the second magnetic attraction part are only attracted by the magnetic force of the second magnet and the third magnet, and are not attracted by the magnetic force of the first magnet.

[0037] In some embodiments, the first magnetic attraction portion includes a first magnetic attractor and a second magnetic attractor, the first magnetic attractor and the second magnetic attractor being symmetrically disposed below the second magnet; the second magnetic attraction portion includes a third magnetic attractor and a fourth magnetic attractor, the third magnetic attractor and the fourth magnetic attractor being symmetrically disposed below the third magnet.

[0038] In some embodiments, the first magnetic attractor and the second magnetic attractor extend along the length direction of the second magnet, and the first magnetic attractor and the second magnetic attractor are disposed at intervals along the length direction of the second magnet; the third magnetic attractor and the fourth magnetic attractor extend along the length direction of the third magnet, and the third magnetic attractor and the fourth magnetic attractor are disposed at intervals along the length direction of the third magnet.

[0039] In some embodiments, along the length of the second magnet, the first magnetic attractor and the second magnetic attractor are separately disposed, and the first magnetic attractor and the second magnetic attractor are respectively located at both ends of the second magnet; along the length of the third magnet, the third magnetic attractor and the fourth magnetic attractor are separately disposed, and the third magnetic attractor and the fourth magnetic attractor are respectively located at both ends of the third magnet.

[0040] In some embodiments, the driving device further includes a focusing carrier and a focusing coil portion disposed on the focusing carrier. The focusing coil portion includes a first focusing coil and a second focusing coil. The first focusing coil and the second magnet are disposed opposite each other in a horizontal direction, and the second focusing coil and the third magnet are disposed opposite each other in a horizontal direction. The image stabilization coil includes a first image stabilization coil, a second image stabilization coil, and a third image stabilization coil. The first image stabilization coil and the first magnet are disposed opposite each other in a height direction, the second image stabilization coil and the second magnet are disposed opposite each other in a height direction, and the third image stabilization coil and the third magnet are disposed opposite each other in a height direction.

[0041] According to one aspect of this application, a camera module is provided, comprising:

[0042] Photosensitive components;

[0043] An optical lens, the optical lens being held in the light-sensing path of the photosensitive element; and

[0044] A driving device, wherein the driving device is adapted to drive the optical lens to move.

[0045] According to one aspect of this application, a driving device is provided, comprising:

[0046] Fixing part;

[0047] A stabilization frame, which is movably connected to the fixing part;

[0048] A focusing carrier, which is movably connected to the image stabilization frame;

[0049] A magnet part is disposed on the anti-shake frame;

[0050] A focusing coil section is disposed on the focusing carrier and is opposite to the magnet section;

[0051] The image stabilization coil portion is disposed on the fixing portion and opposite to the magnet portion; and

[0052] The focus position sensing unit includes a focus position sensing element and a focus position sensing magnet disposed opposite each other along the height direction. The image stabilization frame includes a frame body, which includes a first side, a second side, a third side, and a fourth side disposed sequentially in a counterclockwise direction. The second side and the fourth side are disposed opposite each other on both sides of the first side. The top surface of the first side is lower than the top surfaces of the second side and the fourth side. The focus position sensing magnet is disposed on the first side.

[0053] In some embodiments, the focusing carrier includes a carrier body and a side extension, the side extension extending outward from the carrier body, the focusing position sensing element being fixed to the side extension, the focusing position sensing magnet being fixed to the top of the first side, and the focusing position sensing element being located above the focusing position sensing magnet.

[0054] In some embodiments, the magnet portion includes a first magnet, a second magnet, and a third magnet. The first magnet is fixed to the first side portion, the second magnet is fixed to the second side portion, and the third magnet is fixed to the fourth side portion. 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 fixing portion and opposite to the first magnet. The second image stabilization coil is fixed to the fixing portion and opposite to the second magnet. The third image stabilization coil is fixed to the fixing portion and opposite to the third magnet. The focusing coil portion includes a first focusing coil and a second focusing coil. The first focusing coil is fixed to the focusing carrier and opposite to the second magnet. The second focusing coil is fixed to the focusing carrier and opposite to the third magnet.

[0055] In some embodiments, the height of the top surface of the first magnet is lower than the height of the top surfaces of the second and third magnets, and the focus position sensing magnet is disposed above the first magnet.

[0056] In some embodiments, the first magnet includes a first magnetic portion and a second magnetic portion, the first magnetic portion and the second magnetic portion are stacked, the second magnetic portion is located on the side of the first magnetic portion away from the focusing carrier, and the magnetic pole direction of the focusing position sensing magnet is the same as the magnetic pole direction of the first magnetic portion.

[0057] In some embodiments, the image stabilization frame further includes a first magnetic conductor fixed to the first side, the first magnetic conductor being disposed between the focus position sensing magnet and the first magnet.

[0058] In some embodiments, the driving device further includes a first spring, which connects the focusing carrier and the image stabilization frame to suspend the focusing carrier in the image stabilization frame. The first spring includes a first part, a second part, a third part, and a fourth part arranged sequentially in a counterclockwise direction. The first part, the second part, the fourth part, and the third part are symmetrically arranged on both sides. The focusing position sensing element is disposed between the first part and the fourth part.

[0059] In some embodiments, the focus position sensing unit further includes a focus circuit board that provides a focus position sensing element conduction circuit, wherein the first part, the second part, the third part and the fourth part are respectively electrically connected to the focus circuit board.

[0060] In some embodiments, the drive device further includes a support portion disposed between the anti-shake frame and the fixing portion, wherein the anti-shake frame is supported by the support portion on the fixing portion.

[0061] According to one aspect of this application, a camera module is provided, comprising:

[0062] Photosensitive components;

[0063] An optical lens, the optical lens being held in the light-sensing path of the photosensitive element; and

[0064] A driving device, wherein the driving device is adapted to drive the optical lens to move.

[0065] Compared with the prior art, this application has at least one of the following technical effects:

[0066] 1. By arranging the focus position sensing element and the focus position sensing magnet along the height direction, the lateral dimension of the drive device is reduced.

[0067] 2. By reusing magnets, the second and third magnets can be used simultaneously to drive the image stabilization coil and the focus coil, thereby optimizing the internal structure of the drive device, simplifying the structure, and reducing the size of the drive device.

[0068] 3. The focus position sensing magnet is positioned above the first magnet, so that the top surface of the first magnet is lower than the top surface of the second or third magnet, thereby reducing the height of the drive device.

[0069] 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

[0070] Figure 1 This is a cross-sectional schematic diagram of a camera module according to an embodiment of this application;

[0071] Figure 2 This is a three-dimensional exploded view of the driving device according to an embodiment of this application;

[0072] Figure 3 This is a schematic diagram of the drive device after removing the housing according to an embodiment of this application;

[0073] Figure 4 This is a cross-sectional schematic diagram of a drive device according to an embodiment of this application;

[0074] Figure 5 This is another cross-sectional schematic diagram of the drive device according to an embodiment of this application;

[0075] Figure 6This 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;

[0076] Figure 7 This is a schematic diagram of the focusing carrier of the driving device according to an embodiment of this application;

[0077] Figure 8 This is a three-dimensional exploded view of the anti-shake frame of the drive device according to an embodiment of this application;

[0078] Figure 9 This is a three-dimensional exploded view of the base of the drive device according to an embodiment of this application;

[0079] Figure 10 This is a schematic diagram of the structure of the base, magnet part, focusing coil part and image stabilization coil part of the driving device according to an embodiment of this application;

[0080] Figure 11 This is a schematic diagram of the structure of the base, suspension part, position sensing part and side connection part of the drive device according to an embodiment of this application;

[0081] Figure 12 This is a top view schematic diagram of an array module according to an embodiment of this application. Detailed Implementation

[0082] 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.

[0083] The term "comprising" is open-ended. As used in the appended claims, it does not exclude additional structures or steps.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] "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.

[0090] 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.

[0091] 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".

[0092] Exemplary camera module

[0093] 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 optical image stabilization and optical focusing.

[0094] 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.

[0095] Continue to refer to Figure 1 The 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 optical image stabilization and optical focusing.

[0096] The photosensitive component 30 includes a chip circuit board 32 and a photosensitive chip 31 and an electronic component 33 electrically connected to the chip circuit board 32. 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 electronic component 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.

[0097] The photosensitive assembly 30 also 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.

[0098] The filter assembly 34 further includes a filter element bracket 342, on which the filter element 341 is mounted and fixed, corresponding 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 mounted upright or upside down on the filter element bracket 342. Further, the filter element bracket 342 is fixed to the chip circuit board 32. In one embodiment of this application, the photosensitive assembly 30 is fixed to the image side of the driving device 20 via the filter element bracket 342. In another embodiment of this application, the photosensitive assembly 30 can also be fixed to the image side of the driving device 20 via the chip circuit board 32. 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.

[0099] Exemplary drive device

[0100] 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 the embodiments of this application, 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, and the Z-axis is close to or parallel to the optical axis.

[0101] like Figures 1 to 11As shown, the drive device 20 includes a fixed part 21, a focusing carrier 22, an image stabilization frame 23, a suspension part 24, a support part 201, a magnet part 25, a focusing coil part 26, and an image stabilization coil part 27. The focusing carrier 22, image stabilization frame 23, suspension part 24, support part 201, magnet part 25, focusing coil part 26, and image stabilization coil part 27 are housed in the fixed part 21. The magnet part 25 is disposed on the image stabilization frame 23. The focusing coil part 26 is disposed on the focusing carrier 22 and opposite to the magnet part 25. The image stabilization coil part 27 is disposed on the fixed part 21 and opposite to the magnet part 25.

[0102] The fixing part 21 includes a housing 211 and a base 212. The housing 211 and the base 212 are interlocked to form a receiving cavity for the fixing part 21 to accommodate components such as the focusing carrier 22, the image stabilization frame 23, the suspension part 24, the support part 201, the magnet part 25, the focusing coil part 26, and the image stabilization coil part 27. This prevents dust from entering and prevents components from falling off upon impact. 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, allowing imaging light to enter the optical lens 10 fixed to the driving device 20 and exit the optical lens 10 to enter the photosensitive component 30.

[0103] The image stabilization frame 23 is movably connected to the fixing part 21, and the focusing carrier 22 is movably connected to the image stabilization frame 23. 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. In one embodiment of this application, the focusing carrier 22 has a through hole, and 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. The focusing carrier 22 is movably disposed inside the image stabilization frame 23, which 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, and the image stabilization frame 23 has a through hole in which the focusing carrier 22 is accommodated.

[0104] The focusing carrier 22 includes a carrier body 221 and a side extension 222 extending outward from the carrier body 221. 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 side extension 222 is located above the carrier body 221 (object side). The side extension 222 and the carrier body 221 form a space that can accommodate the image stabilization frame 23.

[0105] Reference Figures 2 to 4 The suspension part 24 is mounted on the image stabilization frame 23, and the focusing carrier 22 is suspended and mounted on the suspension part 24, so that the focusing carrier 22 is suspended in the image stabilization frame 23. In other words, the suspension part 24 connects the focusing carrier 22 and the image stabilization frame 23. The focusing carrier 22 and the image stabilization frame 23 are respectively fixed to the suspension part 24, and the focusing carrier 22 is suspended in the image stabilization frame 23. Thus, when the focusing carrier 22 moves relative to the image stabilization frame 23, friction between the focusing carrier 22 and the image stabilization frame 23 is avoided. The focusing carrier 22 is movably connected to the image stabilization frame 23.

[0106] In one embodiment of this application, the suspension portion 24 suspends the focusing carrier 22 within the image stabilization frame 23. The suspension portion 24 includes a first spring 241 and a second spring 242 spaced apart along the height direction in the drive device 20. The first spring 241 is located on the object side of the focusing carrier 22, and the second spring 242 is located on the image side of the focusing carrier 22, thereby repositionably suspending the focusing carrier 22 within the image stabilization frame 23.

[0107] Specifically, the first spring 241 and the second spring 242 are in the form of a thin sheet structure. The first spring 241 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 242 is connected to the bottom surface of the image stabilization frame 23 and the bottom surface of the focusing carrier 22, respectively, so as 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.

[0108] Specifically, in one embodiment of this application, the suspension portion 24 includes an outer contour fixed to the image stabilization frame 23, an inner contour fixed to the focusing carrier 22, and a deformable portion integrally connecting the outer contour and the inner contour. The deformable portion extends from the outer contour to the inner contour in a bent manner 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. It is understood that the longer the deformable portion and the more bends it undergoes, the smaller its deformation after deformation, and the easier it is to return to its original position after being stretched. In one specific example of this application, the deformable portion 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 can also be an elastic linear structure made of a rigid material (such as metal, etc.).

[0109] Furthermore, the outer contour of the first spring 241 is fixed to the top surface of the image stabilization frame 23, and the inner contour of the first spring 241 is fixed to the top surface of the focusing carrier 22. The deformable portion of the first spring 241 integrally connects the outer contour and the inner contour of the first spring 241. The outer contour of the second spring 242 is fixed to the bottom surface of the image stabilization frame 23, and the inner contour of the second spring 242 is fixed to the bottom surface of the focusing carrier 22. The deformable portion of the second spring 242 integrally connects the outer contour and the inner contour of the second spring 242. This arrangement allows the focusing carrier 22 to be clamped between the first spring 241 and the second spring 242, thus suspending the focusing carrier 22 within the image stabilization frame 23.

[0110] More specifically, in one embodiment of this application, the inner and outer contours of the first spring 241 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 and outer contours of the second spring 242 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 241 and the second spring 242 deform to accumulate elastic force. When the focusing carrier 22 is stopped from being driven, the elastic force accumulated by the first spring 241 and the second spring 242 is released, thereby causing the focusing carrier 22 to return to its original position.

[0111] Furthermore, in one embodiment of this application, the first spring 241 has a split structure, and the second spring 242 has an integral structure. The first spring 241 can be used to enable the circuit of the driving device 20; the second spring 242 can maintain good consistency during installation, resulting in less installation tolerance across its entire plane. In another embodiment of this application, the first spring 241 has an integral structure, and the second spring 242 has a split structure. The second spring 242 can be used to enable the circuit of the driving device 20; the first spring 241 can maintain good consistency during installation, resulting in less installation tolerance across its entire plane. In yet another embodiment of this application, both the first spring 241 and the second spring 242 have split structures, and both can be used to enable the circuit of the driving device 20. In another embodiment of this application, the first spring 241 and the second spring 242 both have an integral structure. The first spring 241 and the second spring 242 can always maintain good consistency during the installation process, so that the entire plane of the first spring 241 and the second spring 242 produces less installation tolerance.

[0112] like Figure 2 and Figure 3 As shown, in one embodiment of this application, a first spring 241 connects the focusing carrier 22 and the image stabilization frame 23 so that the focusing carrier 22 is suspended in the image stabilization frame 23. The first spring 241 includes a first part 2411, a second part 2412, a third part 2413, and a fourth part 2414 arranged sequentially in a counterclockwise direction. The first part 2411, the second part 2412, the third part 2413, and the fourth part 2414 are respectively connected to 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.

[0113] Specifically, in one embodiment of this application, the first portion 2411, the second portion 2412, the third portion 2413, and the fourth portion 2414 are arranged axially symmetrically with respect to the X-axis or Y-axis direction. That is, the first spring piece 241 has an axially symmetrical structure. In other words, the first portion 2411, the second portion 2412, the fourth portion 2414, and the third portion 2413 are symmetrically arranged on both sides. When the focusing carrier 22 moves along the Z-axis direction, the axially symmetrical first spring piece 241 can suppress the focusing carrier 22 from rotating around the Z-axis. Furthermore, the axially symmetrical first spring piece 241 can further improve the flatness of the first spring piece 241, thereby reducing the tilt tolerance of the driving device 20 and improving the assembly accuracy of the driving device 20.

[0114] Further reference Figure 4 , Figure 9 and Figure 10 A support portion 201 is disposed between the anti-shake frame 23 and the fixing portion 21, with the anti-shake frame 23 supported by the support portion 201 on the fixing portion 21. Specifically, the support portion 201 is disposed between the anti-shake frame 23 and the base 212, with the anti-shake frame 23 supported by the support portion 201 on the base 212, thereby preventing friction between the anti-shake frame 23 and the base 212 when the anti-shake frame 23 moves relative to the base 212, and the anti-shake frame 23 is movably supported on the base 212. In a specific example, the support portion 201 provides a fixed-size air gap between the anti-shake frame 23 and the base 212, thereby reducing the frictional force that may be generated when the anti-shake frame 23 moves relative to the base 212.

[0115] During the movement of the stabilization frame 23 relative to the base 212, the support portion 201 can always provide support for the stabilization frame 23, enabling the stabilization frame 23 to move smoothly. Specifically, the support portion 201 includes at least three balls 2011, which are clamped between the top surface of the base 212 and the bottom surface of the stabilization frame 23, and move along the X-axis and Y-axis directions. In a specific example of this application, the base 212 includes a lower ball track 2122, and the stabilization frame 23 includes an upper ball track 232, wherein the upper ball track 232 is located on the bottom surface of the stabilization frame 23, and the lower ball track 2122 is located on the top surface of the base 212. The positions of the upper ball track 232 and the lower ball track 2122 correspond to each other, and the extension directions of the upper ball track 232 and the lower ball track 2122 are perpendicular to each other, forming a cross shape. In other embodiments of this application, the upper ball track 232 and the lower ball track 2122 may also be groove structures, in which the balls 2011 move horizontally.

[0116] Specifically, the ball bearing 2011 is housed between the upper ball bearing track 232 and the lower ball bearing track 2122, and is allowed to move along the upper ball bearing track 232 and the lower ball bearing track 2122, thus the ball bearing 2011 is movably held between the base 212 and the anti-shake frame 23 to always support the anti-shake frame 23. Furthermore, when the anti-shake frame 23 is driven to move relative to the base 212, the ball bearing 2011 moves between the cross-shaped upper ball bearing track 232 and the lower ball bearing track 2122 without interference.

[0117] More specifically, there are at least three upper ball bearing tracks 232 and at least three lower ball bearing tracks 2122, respectively located at the corners of the base 212 and the anti-shake frame 23. In a specific example of this application, there are four upper ball bearing tracks 232 and four lower ball bearing tracks 2122, respectively located at the four corners of the base 212 and the anti-shake frame 23. There are four balls 2011, which are respectively positioned between the four upper ball bearing tracks 232 and the four lower ball bearing tracks 2122 to provide more stable support for the anti-shake frame 23.

[0118] like Figures 1 to 7 As shown, 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. The focusing coil 26 generates a magnetic field under current excitation and interacts with the magnetic field of the magnet 25, thereby driving the focusing coil 26 to move along the Z-axis. The focusing carrier 22 moves with the focusing coil 26, thus achieving the focusing function. Similarly, the image stabilization coil 27 generates a magnetic field under current excitation and interacts with the magnetic field of the magnet 25, thereby driving the magnet 25 to move along the X-axis and / or Y-axis. The image stabilization frame 23 moves with the magnet 25, and the focusing carrier 22, suspended in the image stabilization frame 23, moves with the image stabilization frame 23, thus achieving the image stabilization function. In this embodiment, the magnet part 25 is reused. The magnet part 25 is used to interact with the focusing coil part 26 in the process of realizing the focusing function, and also to interact with the image stabilization coil part 27 in the process of realizing the image stabilization function, so that the structural design of the drive device 20 is compact and miniaturized.

[0119] In one embodiment of this application, the magnet portion 25 is fixed to the image stabilization frame 23, the focusing coil portion 26 is fixed to the side of the focusing carrier 22, and the image stabilization coil portion 27 is fixed to the top surface of the base 212. The side of the magnet portion 25 facing the focusing coil portion 26 is exposed and not covered by the image stabilization frame 23, so that the distance between the focusing coil portion 26 and the magnet portion 25 can be designed to be smaller, thereby reducing the lateral dimension (horizontal dimension) of the drive device 20; the bottom surface of the magnet portion 25 facing the image stabilization coil portion 27 is exposed, so that the distance between the image stabilization coil portion 27 and the magnet portion 25 can be designed to be smaller, thereby reducing the height dimension (Z-axis dimension) of the drive device 20.

[0120] In a specific example, the magnet part 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 to the anti-shake frame 23 in a counterclockwise order. The second magnet 252 and the third magnet 253 are disposed oppositely on both sides of the first magnet 251, and the three are arranged in a substantially "匚"-shaped structure.

[0121] The focusing coil part 26 includes a first focusing coil 261 and a second focusing coil 262. The first focusing coil 261 and the second focusing coil 262 are respectively fixed to opposite sides of the focusing carrier 22. Specifically, the first focusing coil 261 is fixed to the focusing carrier 22 and is opposite to the second magnet 252, and the second focusing coil 262 is fixed to the focusing carrier 22 and is opposite to the third magnet 253. Among them, the first focusing coil 261 and the second magnet 252 are disposed oppositely in the horizontal direction, and the second focusing coil 262 and the third magnet 253 are disposed oppositely in the horizontal direction. Both the first focusing coil 261 and the second focusing coil 262 can be coil windings. The axis direction of the winding of the first focusing coil 261 and the axis direction of the winding of the second focusing coil 262 are respectively perpendicular to the Z-axis direction (substantially perpendicular to the Z-axis (optical axis) direction), and the axis direction of the winding of the first focusing coil 261 and the axis direction of the winding of the second focusing coil 262 are parallel to each other. Among them, the first focusing coil 261 and the second magnet 252 are disposed oppositely, and the second focusing coil 262 and the third magnet 253 are disposed oppositely. Thus, the first focusing coil 261 and the second focusing coil 262 respectively generate magnetic fields under current excitation and interact with the second magnet 252 and the third magnet 253, thereby driving the focusing coil part 26 and the focusing carrier 22 to move relative to the magnet part 25 and the anti-shake frame 23.

[0122] 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 to the fixing part 21 and faces the first magnet 251. The second image stabilization coil 272 is fixed to the fixing part 21 and faces the second magnet 252. The third image stabilization coil 273 is fixed to the fixing part 21 and faces the third magnet 253. That is, the first image stabilization coil 271 and the first magnet 251 are arranged opposite each other in the height direction, the second image stabilization coil 272 and the second magnet 252 are arranged opposite each other in the height direction, and the third image stabilization coil 273 and the third magnet 253 are arranged opposite each other in the height direction. Specifically, the first stabilization coil 271, the second stabilization coil 272, and the third stabilization coil 273 are fixed to the top surface of the base 212 in a counterclockwise order. The second stabilization coil 272 and the third stabilization coil 273 are positioned on either side of the first stabilization coil 271, and the three are arranged in a roughly "U" shape. Each of the three stabilization coils can be a coil winding. The axial directions of the first stabilization coil 271, the second stabilization coil 272, and the third stabilization coil 273 are parallel to the Z-axis (roughly parallel to the Z-axis (optical axis)). These axial directions are also parallel to each other. The first stabilization coil 271, the second stabilization coil 272, and the third stabilization coil 273 are laid flat on the base 212. 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 and interact with 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.

[0123] 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 also to interact with the image stabilization coil section 27 during the image stabilization function. In one embodiment of this application, the second magnet 252 and the third magnet 253 are multipole magnets (such as...). Figure 6(As shown in the diagram, a quadrupole magnet), so that 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. Meanwhile, since the first magnet 251 is not used to drive the focusing coil section 26 and the focusing carrier 22, 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 the height of the top surfaces of the second magnet 252 and the third magnet 253.

[0124] In one embodiment of this application, as described 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, with no magnet section 25 on one side of the driving device 20, and no magnet on the side opposite to the first magnet 251. In this case, 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 the adjacent camera module.

[0125] 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 focusing coil section 26 also includes only the first focusing coil 261 disposed opposite to the second magnet 252, and the image stabilization coil section 27 includes the first image stabilization coil 271 opposite to the first magnet 251 and the 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 driving device 20, but it also reduces the driving force of the driving device 20. When the focusing function is realized, only one side is provided with the first focusing coil 261 and the second magnet 252 for driving. Due to the interaction between the first 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.

[0126] 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.

[0127] Continue to refer to Figures 1 to 3The drive device 20 also includes a position sensing unit 28 for acquiring position information of the optical lens 10. The position sensing unit 28 can acquire position information of the optical lens 10 in the Z-axis direction and / or the XY plane (the plane containing the X and Y axes) and provide it to the drive device 20 to adjust the position of the optical lens 10, forming a closed-loop control, thereby speeding up the focusing speed and improving the imaging quality.

[0128] The position sensing unit 28 includes a pair of focus position sensing units 281, which are disposed on one side of the focusing carrier 22 along the height direction (Z-axis direction). The focus position sensing unit 281 includes a pair of focus position sensing elements 2811 and a pair of focus position sensing magnets 2813. The focus position sensing elements 2811 can be elements that can sense magnetic fields, such as Hall elements, driver ICs, and TMRs. A focus position sensing element 2811 and a focus position sensing magnet 2813 are disposed on one side of the focus carrier 22 along the height direction. The focus position sensing element 2811 is disposed in one of the focus carrier 22 and the image stabilization frame 23, and the focus position sensing magnet 2813 is disposed in the other of the focus carrier 22 and the image stabilization frame 23. The focus position sensing element 2811 and the focus position sensing magnet 2813 are disposed opposite each other along the height direction. The focus position sensing element 2811 is disposed in the magnetic field of the focus position sensing magnet 2813. Thus, the focus position sensing element 2811 obtains the position information of the focus position sensing element 2811 relative to the focus position sensing magnet 2813 by sensing the magnetic field information of the focus position sensing magnet 2813, or obtains the position information of the focus position sensing magnet 2813 relative to the focus position sensing element 2811.

[0129] In this application, the focus position sensing magnet 2813 cannot be replaced by the first magnet 251, the second magnet 252, or the third magnet 253 in the magnet section 25. When the focus position sensing element 2811 is directly facing the first magnet 251, the second magnet 252, or the third magnet 253 along the height direction, the magnetic field direction of the first magnet 251, the second magnet 252, and the third magnet 253 is difficult to meet the working requirements of the focus position sensing element 2811. The detailed reasons will be explained further below.

[0130] In one embodiment of this application, a focus position sensing element 2811 is fixed to the side extension 222 of a focus carrier 22, and a focus position sensing magnet 2813 is fixed to the top of an image stabilization frame 23. The focus position sensing element 2811 is located above the focus position sensing magnet 2813, so that the focus position sensing element 2811 and the focus position sensing magnet 2813 are disposed on one side of the focus carrier 22 along the height direction, with the focus position sensing element 2811 disposed above the side extension 222 and the focus position sensing magnet 2813 disposed below the side extension 222. When the focusing carrier 22 is driven to move along the height direction (Z-axis direction) by the focusing coil part 26 and the magnet part 25, the focusing position sensing element 2811 moves relative to the focusing position sensing magnet 2813 in the height direction. The focusing position sensing element 2811 moves away from or closer to the focusing position sensing magnet 2813 in the Z-axis direction. The focusing position sensing element 2811 senses the change in the magnetic field of the focusing position sensing magnet 2813, and then obtains the position information change of the focusing position sensing element 2811 and the focusing carrier 22.

[0131] In one embodiment of this application, the projection of the focus position sensing element 2811 along the height direction at least partially falls within the focus position sensing magnet 2813. In a specific example, the projection of the focus position sensing element 2811 along the height direction falls within the focus position sensing magnet 2813, thereby enabling the focus position sensing element 2811 to acquire stronger magnetic field information.

[0132] The focus position sensing unit 281 also includes a focus circuit board 2812 that provides a circuit for the focus position sensing element 2811 to conduct. The focus position sensing element 2811 is electrically connected to the focus circuit board 2812, and the focus circuit board 2812 is fixed to the side extension 222 of the focus carrier 22. In a specific example of this application, the focusing circuit board 2812 is fixed above the side extension 222 (object side direction), the focusing position sensing element 2811 is fixed above the focusing circuit board 2812, and thus the focusing position sensing element 2811 is fixed above the side extension 222. The focusing position sensing magnet 2813 is located below the focusing position sensing element 2811 and is fixed to the top of the image stabilization frame 23. Thus, the distance between the focusing position sensing element 2811 and the focusing position sensing magnet 2813 can be designed to be large. When the focusing carrier 22 is driven to move along the height direction by the focusing coil part 26 and the magnet part 25, the focusing position sensing element 2811 moves away from or closer to the focusing position sensing magnet 2813. In another specific example of this application, the focus position sensing element 2811 can be fixed below the focus circuit board 2812, thereby fixing the focus position sensing element 2811 below the side extension 222. The focus position sensing magnet 2813 is located below the focus position sensing element 2811 and fixed to the top of the image stabilization frame 23, so that the focus position sensing element 2811 can be closer to the focus position sensing magnet 2813, and the position sensing magnet can provide stronger magnetic field information for the focus position sensing element 2811.

[0133] like Figure 3 and Figure 7 As shown, the focusing carrier 22 also includes a focusing conductive component 223 fixed to the carrier body 221. The focusing conductive component 223 includes a first focusing conductive element 2231 and a second focusing conductive element 2232. The first focusing conductive element 2231 and the second focusing conductive element 2232 are fitted into the carrier body 221 by, for example, insert molding. The focusing conductive component 223 is electrically connected to the focusing circuit board 2812 and the focusing coil part 26. Specifically, the first focusing conductive element 2231 is electrically connected to the focusing circuit board 2812 and the first focusing coil 261, and the second focusing conductive element 2232 is electrically connected to the focusing circuit board 2812 and the second focusing coil 262, thereby making the focusing position sensing element 2811 and the first focusing coil 261 and the second focusing coil 262 of the focusing coil section 26 electrically connected. The first focusing coil 261 and the second focusing coil 262 are connected in series through leads, and the first focusing coil 261 is electrically connected to the second focusing coil 262. Thus, the focusing position sensing element 2811 can adjust the current direction and / or current magnitude of the first focusing coil 261 and the second focusing coil 262 of the focusing coil section 26.

[0134] Continue to refer to Figure 3A focus position sensing element 2811 is disposed between a first portion 2411 and a fourth portion 2414. The first portion 2411, the second portion 2412, the third portion 2413, and the fourth portion 2414 of the first spring 241 are electrically connected to the focus circuit board 2812, thereby providing circuit conduction for the focus circuit board 2812. The focus position sensing element 2811 is electrically connected to the focus circuit board 2812. The first portion 2411, the second portion 2412, the fourth portion 2414, and the third portion 2413 are located on both sides of the focus position sensing element 2811 and are electrically connected to the focus circuit board 2812. The first portion 2411, the second portion 2412, the third portion 2413, and the fourth portion 2414 are not connected to each other to avoid short circuits.

[0135] In one embodiment of this application, the focus position sensing unit 281 and the first magnet 251 are located on the same side of the focus carrier 22, and the focus position sensing unit 281 is disposed above the first magnet 251, so that at least one side of the driving device 20 is not provided with a magnet. This allows the camera module unit of another array module to be disposed on the side of the driving device 20 without the magnet part 25 when the driving device 20 is used in the array module. In this way, the magnet part 25 of the driving device 20 will not cause magnetic field interference to the adjacent camera module.

[0136] In one embodiment of this application, the focus position sensing magnet 2813 is disposed above the first magnet 251. Since the top surface of the first magnet 251 is lower than the top surface of the second magnet 252 and the third magnet 253, there is a large space above the first magnet 251 for disposing of the focus position sensing magnet 2813, and the height of the drive device 20 can be reduced.

[0137] Because the focus position sensing magnet 2813 and the first magnet 251 are positioned close together, in order to ensure that both the focus position sensing magnet 2813 and the first magnet 251 can be securely fixed to the image stabilization frame 23, the focus position sensing magnet 2813 is implemented as a bipolar magnet, while the first magnet 251 is implemented as a multipolar magnet; for example, the first magnet 251 can be a quadrupole magnet. Specifically, refer to... Figure 6As shown in the figure, viewed from the direction shown, the focus position sensing magnet 2813 has an S pole (south pole) at the top and an N pole (north pole) at the bottom. The magnetic pole direction (NS) of the focus position sensing magnet 2813 is upward and parallel to the height direction. In this way, the focus position sensing element 2811 can acquire effective magnetic field information. The first magnet 251 includes a first magnetic force portion 2511 and a second magnetic force portion 2512. The first magnetic force portion 2511 and the second magnetic force portion 2512 are stacked in a horizontal direction (perpendicular to the optical axis). The second magnetic force portion 2512 is located on top of the first magnetic force portion 2512. On the side of the first magnetic part 2511 away from the optical axis, the second magnetic part 2512 is located on the side of the first magnetic part 2511 away from the focusing carrier 22. The first magnetic part 2511 is located between the focusing carrier 22 and the second magnetic part 2512. Viewed in the figure, the upper part of the first magnetic part 2511 is the S pole, and the lower part is the N pole, with the magnetic poles pointing upwards. Similarly, the upper part of the second magnetic part 2512 is the N pole, and the lower part is the S pole, with the magnetic poles pointing downwards. 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.

[0138] In one embodiment of this application, the magnetic pole direction of the focus position sensing magnet 2813 is the same as the magnetic pole direction of the first magnetic force portion 2511 of the first magnet 251. In this way, the focus position sensing magnet 2813 can be disposed closer to the inner side of the focus carrier 22, and the focus position sensing element 2811 is also disposed on the inner side of the focus carrier 22 closer to the optical axis, corresponding to the focus position sensing magnet 2813. As a result, the size of the drive device 20 can be designed to be smaller.

[0139] Continue to refer to Figure 6In one embodiment of this application, the second magnet 252 includes a third magnetic portion 2521 and a fourth magnetic portion 2522. The third magnetic portion 2521 and the fourth magnetic portion 2522 are stacked in a direction parallel to the optical axis. The third magnetic portion 2521 is located on the side of the fourth magnetic portion 2522 away from the second image stabilization coil 272, and the fourth magnetic portion 2522 is located between the third magnetic portion 2521 and the second image stabilization coil 272. Viewed in the direction shown in the figure, the left side of the third magnetic portion 2521 is... The side closest to the first focusing coil 261 is the N pole, the right side of the third magnetic part 2521 (the side away from the first focusing coil 261) is the S pole, the left side of the fourth magnetic part 2522 (the side closest to the first focusing coil 261) is the S pole, and the right side of the fourth magnetic part 2522 (the side away from the first focusing coil 261) is the N pole. Thus, the side of the second magnet 252 facing the second image stabilization coil 272 has both N and S poles, and the side of the second magnet 252 facing the first focusing coil 261 also has both N and S poles.

[0140] The third magnet 253 includes a fifth magnetic part 2531 and a sixth magnetic part 2532. The fifth magnetic part 2531 and the sixth magnetic part 2532 are stacked in a direction parallel to the optical axis. The fifth magnetic part 2531 is located on the side of the sixth magnetic part 2532 away from the third image stabilization coil 273. The sixth magnetic part 2532 is located between the fifth magnetic part 2531 and the third image stabilization coil 273. Viewed in the direction shown in the figure, the left side of the fifth magnetic part 2531 (away from the second focus) The first magnetic coil 262 has an S pole on one side, the right side of the fifth magnetic part 2531 (closer to the first focusing coil 261) has an N pole, the left side of the sixth magnetic part 2532 (away from the first focusing coil 261) has an N pole, and the right side of the sixth magnetic part 2532 (closer to the first focusing coil 261) has an S pole. Thus, the second magnet 252 has both an N pole and an S pole on the side facing the second image stabilization coil 272, and also has both an N pole and an S pole on the side facing the first focusing coil 261.

[0141] In another embodiment of this application, the magnetic pole direction of the focusing position sensing magnet 2813 can also be the same as... Figure 6The directions are reversed. The magnetic poles of the focus position sensing magnet 2813 can point downwards, meaning the upper magnetic pole of the focus position sensing magnet 2813 is the N pole, and the lower magnetic pole is the S pole. Correspondingly, the upper part of the first magnetic force portion 2511 of the first magnet 251 is the N pole, and the lower part is the S pole. The upper part of the second magnetic force portion 2512 of the first magnet 251 is the S pole, and the lower part is the N pole. The magnetic poles of the first magnetic force portion 2511 point downwards, and the magnetic poles of the second magnetic force portion 2512 point upwards. In other words, the magnetic pole direction of the focus position sensing magnet 2813 is consistent with the magnetic pole direction of the first magnetic force portion 2511 located inside the first magnet 251, so that the focus position sensing magnet 2813 can be placed closer to the inner side where the focusing carrier 22 is located. Similarly, the directions of the magnetic poles in the second magnet 252 and the third magnet 253 can also be reversed, depending on the design requirements.

[0142] In one embodiment of this application, such as Figure 1 , Figure 5 and Figure 8 As shown, the image stabilization frame 23 includes a frame body 231 and a first magnetic conductor 233 fixed to the frame body 231. The first magnetic conductor 233 is disposed between the focus position sensing magnet 2813 and the first magnet 251. The first magnetic conductor 233 is made of a material with magnetic properties, such as stainless steel (SUS430). By providing the first magnetic conductor 233, the influence of the magnetic field of the first magnet 251 on the focus position sensing element 2811 is reduced. In a specific example of this application, the first magnetic conductor 233 is fitted into the frame body 231 through a process such as insert molding, with the focus position sensing magnet 2813 disposed above the first magnetic conductor 233 and the first magnet 251 disposed below the first magnetic conductor 233. Specifically, the focus position sensing magnet 2813 and the first magnet 251 can also be fixed by the first magnetic conductive element 233. The focus position sensing magnet 2813 is fixed above the first magnetic conductive element 233 by magnetic attraction, and the first magnet 251 is fixed below the first magnetic conductive element 233 by magnetic attraction. The focus position sensing magnet 2813 can be in close contact with the upper surface of the first magnetic conductive element 233, and the first magnet 251 can be in close contact with the lower surface of the first magnetic conductive element 233.

[0143] Continue to refer to Figure 5 and Figure 8The image stabilization frame 23 also includes a second magnetic conductor 234 and a third magnetic conductor 235 fixed to the frame body 231. The second magnetic conductor 234 and the third magnetic conductor 235 can be fitted into the frame body 231 using processes such as insert molding. The second magnetic conductor 234 is disposed on the side of the second magnet 252 away from the first focusing coil 261, thereby enhancing the magnetic field strength of the second magnet 252 facing the first focusing coil 261. The third magnetic conductor 235 is disposed on the side of the third magnet 253 away from the second focusing coil 262, thereby enhancing the magnetic field strength of the third magnet 253 facing the second focusing coil 262. Specifically, the second magnet 252 can also be fixed to the second magnetic conductor 234 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 235 or more firmly attracted to the frame body 231 by magnetic attraction with the third magnetic conductor 235.

[0144] The second magnetic conductive element 234 and the third magnetic conductive element 235 are disposed on both sides of the first magnetic conductive element 233. The second magnetic conductive element 234 and the third magnetic conductive element 235 can be connected to both ends of the first magnetic conductive element 233 respectively. The second magnetic conductive element 234 and the third magnetic conductive element 235 extend integrally from both ends of the first magnetic conductive element 233, so that the first magnetic conductive element 233, the second magnetic conductive element 234 and the third magnetic conductive element 235 can be fixed in the frame body 231 as a single component, simplifying the manufacturing process. In one embodiment of this application, the image stabilization frame 23 further includes a connector 236 connecting the second magnetic conductor 234 and the third magnetic conductor 235. The connector 236 is fixed to the opposite side of the first magnetic conductor 233. By means of the connector 236, the first magnetic conductor 233, the second magnetic conductor 234, the third magnetic conductor 235 and the connector 236 form a ring structure. The ring structure is then fitted into the frame body 231 by a process such as insert molding, which can enhance the structural strength of the frame body 231. The shape of the ring structure is close to a rectangle.

[0145] In one embodiment of this application, the frame body 231 includes a first side portion 2311, a second side portion 2312, a third side portion 2313, and a fourth side portion 2314 arranged sequentially in a counterclockwise direction. The second side portion 2312 and the fourth side portion 2314 are disposed opposite each other on both sides of the first side portion 2311, and the third side portion 2313 is located opposite the first side portion 2311. The first side portion 2311, the second side portion 2312, the third side portion 2313, and the fourth side portion 2314 are integrally connected. The top surface of the first side portion 2311 is lower than the top surfaces of the second side portion 2312 and the fourth side portion 2314. The focus position sensing unit 281 includes a focus position sensing element 2811 and a focus position sensing magnet 2813 disposed opposite each other in the height direction. The focus position sensing magnet 2813 is disposed on the first side portion 2311.

[0146] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 8 As shown, the first magnet 251 is fixed to the first side portion 2311, the second magnet 252 is fixed to the second side portion 2312, and the third magnet 253 is fixed to the fourth side portion 2314. The height of the top surface of the first magnet 251 is lower than the height of the top surfaces of the second magnet 252 and the third magnet 253. The focus position sensing magnet 2813 is disposed above the first magnet 251. Because the first side portion 2311 has a lower top surface, there is sufficient space above the first side portion 2311 to accommodate the focus position sensing magnet 2813 and the focus position sensing element 2811 without causing the drive device 20 to be designed to be too large in the height direction.

[0147] The first magnetic conductive element 233 is fixed to the first side 2311 and thus fixed to the frame body 231; the second magnetic conductive element 234 is fixed to the second side 2312 and thus fixed to the frame body 231; the third magnetic conductive element 235 is fixed to the fourth side 2314 and thus fixed to the frame body 231; and the connector 236 is fixed to the third side 2313 and thus fixed to the frame body 231.

[0148] like Figure 1 , Figure 2 and Figure 11As shown, in one embodiment of this application, the position sensing unit 28 further includes an image stabilization position sensing unit 282. The image stabilization position sensing unit 282 is disposed opposite to the magnet unit 25 along the height direction. The image stabilization position sensing unit 282 is mounted on the base 212. When the image stabilization frame 23 moves, the relative position of the image stabilization position sensing unit 282 and the magnet unit 25 changes. Based on the strength of the magnetic field of the magnet unit 25 sensed by the image stabilization position sensing unit 282, the position of the image stabilization frame 23 can be determined, and the current of the focusing coil unit 26 and the image stabilization coil unit 27 can be adjusted so that the image stabilization frame 23 moves to the desired position. In this application, the image stabilization position sensing unit 282 can be a Hall element, a driver IC, a TMR, or other components capable of sensing magnetic fields.

[0149] Specifically, in one embodiment of this application, the image stabilization position sensing unit 282 includes a first image stabilization position sensing element 2821 and a second image stabilization position sensing element 2822. The first image stabilization position sensing element 2821 is disposed opposite to the first magnet 251 along the height direction, and the second image stabilization position sensing element 2822 is disposed opposite to the second magnet 252 or the third magnet 253 along the height direction. The first image stabilization position sensing element 2821 and the second position sensing element sense the position information of the image stabilization frame 23 moving along the X-axis and Y-axis directions. For example, in a specific example of this application, the first image stabilization position sensing element 2821 is disposed within the first image stabilization coil 271 so as to be disposed opposite to the first magnet 251 along the height direction, and the second image stabilization position sensing element 2822 is disposed within the third image stabilization coil 273 so as to be disposed opposite to the third magnet 253 along the height direction.

[0150] More specifically, in one embodiment of this application, a groove is provided on the base 212, and the first anti-shake position sensing element 2821 and the second anti-shake position sensing element 2822 are disposed in the groove of the base 212 to avoid the first anti-shake position sensing element 2821 and the second anti-shake position sensing element 2822 protruding from the top surface of the base 212, thereby increasing the height of the drive device 20.

[0151] In one embodiment of this application, the base 212 includes a base body 2121, a magnetic attraction component 2123, and a base conductive component 2124. The magnetic attraction component 2123 and the base conductive component 2124 are disposed on the base body 2121, and have a certain height difference on the base body 2121 to avoid interference. For example, in one specific example of this application, the magnetic attraction component 2123 is positioned higher than the base conductive component 2124. This not only prevents interference between the magnetic attraction component 2123 and the base conductive component 2124 but also allows the distance between the magnetic attraction component 2123 and the magnet portion 25 to be closer, resulting in a better magnetic attraction effect. In another specific example of this application, the magnetic attraction component 2123 may be positioned lower than the base conductive component 2124; this application does not impose any limitations on this.

[0152] More specifically, in one embodiment of this application, the magnetic suction component 2123 is fitted into the base body 2121 using an insert molding process. The magnetic suction component 2123 is only disposed opposite to the second magnet 252 and the third magnet 253 of the magnet part 25 along the height direction, so that a magnetic attraction force along the height direction (Z-axis direction) is generated between the magnetic suction component 2123 and the second magnet 252 and the third magnet 253. On the one hand, the support part 201 is clamped between the base body 2121 and the anti-shake frame 23 by the action of the magnetic attraction force; on the other hand, after the anti-shake frame 23 moves, the anti-shake frame 23 is held in a position by the action of the magnetic attraction force, wherein the position can be the initial position of the anti-shake frame 23 before it is driven. In another embodiment of this application, the magnetic suction component 2123 can also be fixed to the base body 2121 by means of adhesive or welding, etc., and this application does not limit this.

[0153] Of course, it can also be said that the magnetic attraction component 2123 is provided on the side of the base body 2121 opposite to the second magnet 252 and the third magnet 253, and the magnetic attraction component 2123 is not provided on the side of the base body 2121 opposite to the first magnet 251.

[0154] Furthermore, the magnetic component 2123 may not contain magnetism; for example, it may be made of ferrite, or it may be a permanent magnet. When the magnetic component 2123 is located in the magnetic field of the second magnet 252 and the third magnet 253, it is subjected to the magnetic forces of the second magnet 252 and the third magnet 253. The magnetic component 2123 forms mutual attractive forces with the second magnet 252 and the third magnet 253 respectively to limit the position of the second magnet 252 and the third magnet 253 relative to the magnetic component 2123 (base body 2121), so that the second magnet 252 and the third magnet 253 will not detach from the drive device 20 when not subjected to the force of the focusing coil part 26.

[0155] like Figure 9 and Figure 10 As shown, in one embodiment of this application, the magnetic attraction component 2123 includes a first magnetic attraction part 21231 and a second magnetic attraction part 21232. The first magnetic attraction part 21231 and the second magnet 252 are disposed opposite each other along the height direction, and the second magnetic attraction part 21232 and the third magnet 253 are disposed opposite each other along the height direction. The first magnetic attraction part 21231 and the second magnetic attraction part 21232 are disposed on opposite sides of the base body 2121, that is, the first magnetic attraction part 21231 and the second magnetic attraction part 21232 are disposed opposite each other with respect to the X-axis direction or the Y-axis direction. This arrangement ensures that the first magnetic attraction force F1 generated by the interaction between the first magnetic attraction part 21231 and the second magnet 252, and the second magnetic attraction force F2 generated by the interaction between the second magnetic attraction part 21232 and the third magnet 253, are symmetrical. In other words, the first magnetic attraction force F1 and the second magnetic attraction force F2 are symmetrical forces. The anti-shake frame 23 remains balanced under the action of the symmetrical magnetic attraction forces (the first magnetic attraction force F1 and the second magnetic attraction force F2) located on opposite sides, preventing tilting. Furthermore, in a specific example of this application, the first magnetic attraction part 21231 and the second magnetic attraction part 21232 are symmetrically arranged with respect to the X-axis or Y-axis direction.

[0156] Furthermore, as mentioned above, the first magnetic part 21231 of the magnetic component 2123 generates a first magnetic attraction force along the height direction between the first magnetic part 21231 and the second magnet 252, and the second magnetic part 21232 of the magnetic component 2123 generates a second magnetic attraction force along the height direction between the third magnet 253. Under the action of the first and second magnetic attraction forces, the ball 2011 is always held between the base body 2121 and the anti-shake frame 23. The lower ball track 2122 is located on the top surface of the base body 2121. In other words, the ball 2011 always supports the anti-shake frame 23 through the action of the magnetic attraction force.

[0157] Specifically, the magnetic attraction component 2123 is only positioned opposite to the second magnet 252 and the third magnet 253 of the magnet part 25 along the height direction, and not opposite to the first magnet 251 of the magnet part 25 along the height direction. That is to say, the magnetic attraction force is only generated between the first magnetic attraction part 21231 and the second magnet 252, and between the second magnetic attraction part 21232 and the third magnet 253. In other words, the magnetic attraction component 2123 is provided on the side of the base body 2121 opposite to the second magnet 252 and the third magnet 253, and not on the side of the base body 2121 opposite to the first magnet 251. This is because, in this application, the first magnet 251, the second magnet 252, and the third magnet 253 are respectively disposed on three sides of the image stabilization frame 23. When the first magnet 251, the second magnet 252, and the third magnet 253 all generate magnetic attraction with the magnetic attraction component 2123, only three sides of the image stabilization frame 23 are subjected to magnetic attraction, which causes the image stabilization frame 23 to tilt under the action of asymmetrical magnetic attraction. To avoid this situation, only the second magnet 252 and the third magnet 253 generate symmetrical magnetic attraction with the magnetic attraction component 2123, so that the image stabilization frame 23 can remain stable under the action of symmetrical magnetic attraction.

[0158] More specifically, the first magnetic attraction part 21231 and the second magnetic attraction part 21232 are only disposed on opposite sides of the base body 2121, and do not extend to the corners of the base body 2121. That is, the first magnetic attraction part 21231 and the second magnetic attraction part 21232 will only be attracted by the magnetic force of the second magnet 252 and the third magnet 253, and will not be attracted by the magnetic force of the first magnet 251, thereby generating an asymmetrical magnetic attraction force. Furthermore, the structural arrangement that the first magnetic attraction part 21231 and the second magnetic attraction part 21232 do not extend to the corners of the base body 2121 can also provide a certain placement position for the support part 201, making the structure of the drive device 20 more compact.

[0159] Furthermore, in one embodiment of this application, the magnetic attraction component 2123 includes an even number of magnetic attractors 21233, which are symmetrically arranged on opposite sides of the base body 2121 to generate symmetrical magnetic attraction. The even number of magnetic attractors 21233 are identical in shape, thereby providing a uniform and stable magnetic attraction, allowing the anti-shake frame 23 to be smoothly attracted to the base 212. In a specific example of this application, the number of magnetic attractors 21233 is four: the first magnetic attraction part 21231 includes two magnetic attractors 21233, the second magnetic attraction part 21232 includes two magnetic attractors 21233, and the four magnetic attractors 21233 are symmetrically arranged below the second and third magnets. In another specific example of this application, there are two magnetic attractors 21233. The first magnetic attractor 21231 includes one magnetic attractor 21233, and the second magnetic attractor 21232 includes one magnetic attractor 21233. The two magnetic attractors 21233 are symmetrically arranged below the second magnet and the third magnet.

[0160] In one embodiment of this application, the magnetic attraction component 2123 has a split structure, comprising a first magnetic attraction element 21233a, a second magnetic attraction element 21233b, a third magnetic attraction element 21233c, and a fourth magnetic attraction element 21233d. The first magnetic attraction portion 21231 includes the first magnetic attraction element 21233a and the second magnetic attraction element 21233b, which are symmetrically disposed below the second magnet 252; the second magnetic attraction portion 21232 includes the third magnetic attraction element 21233c and the fourth magnetic attraction element 21233d, which are symmetrically disposed below the third magnet 253. The first magnetic attractor 21233a and the second magnetic attractor 21233b extend along the length direction of the second magnet 252. The first magnetic attractor 21233a and the second magnetic attractor 21233b are spaced apart along the length direction of the second magnet 252. The first magnetic attractor 21233a and the second magnetic attractor 21233b are spaced apart in the extending direction to prevent them from contacting each other. This avoids the first magnetic attractor 21233a and the second magnetic attractor 21233b from becoming a single unit, which would result in excessive magnetic attraction with the second magnet 252 and thus affect the driving function of the driving device 20. Effect: The third magnetic attractor 21233c and the fourth magnetic attractor 21233d extend along the length direction of the third magnet 253. The third magnetic attractor 21233c and the fourth magnetic attractor 21233d are spaced apart along the length direction of the third magnet 253. The third magnetic attractor 21233c and the fourth magnetic attractor 21233d have a certain distance in the extension direction so that the third magnetic attractor 21233c and the fourth magnetic attractor 21233d do not contact each other. The third magnetic attractor 21233c and the fourth magnetic attractor 21233d are connected as one unit, resulting in excessive magnetic attraction between them and the third magnet 253, which in turn affects the driving effect of the driving device 20.

[0161] Furthermore, the first magnetic attractor 21233a and the second magnetic attractor 21233b are separately arranged, and along the length direction of the second magnet 252, the first magnetic attractor 21233a and the second magnetic attractor 21233b are respectively located at both ends of the second magnet 252; the third magnetic attractor 21233c and the fourth magnetic attractor 21233d are separately arranged, and along the length direction of the third magnet 252, the third magnetic attractor 21233c and the fourth magnetic attractor 21233d are respectively located at both ends of the third magnet 253. The length direction of the second magnet 252 and the third magnet 253 is the X-axis direction, and the width direction of the second magnet 252 and the third magnet 253 is the Y-axis direction. Understandably, below the second magnet 252, the first magnetic attracting element 21233a and the second magnetic attracting element 21233b are symmetrically arranged along the Y-axis; below the third magnet 253, the third magnetic attracting element 21233c and the fourth magnetic attracting element 21233d are symmetrically arranged along the Y-axis; the first magnetic attracting element 21233a and the third magnetic attracting element 21233c are arranged opposite each other along the X-axis; the second magnetic attracting element 21233b and the fourth magnetic attracting element 21233d are arranged opposite each other along the X-axis. This arrangement allows the second magnet 252 and the third magnet 253 to generate magnetic attraction forces along the X-axis and / or along the Y-axis with the four magnetic attracting elements 21233, or in other words, the second magnet 252 and the third magnet 253 to generate magnetic attraction forces with component forces along the X-axis and / or along the Y-axis with the four magnetic attracting elements 21233.

[0162] When the image stabilization coil 27 is not energized by current, the split magnetic traction assembly 2123 allows magnetic attraction forces (or component forces along the X-axis and Y-axis) to be generated between the first magnetic traction member 21233a, the second magnetic traction member 21233b and the second magnet 252, and between the third magnetic traction member 21233c, the fourth magnetic traction member 21233d and the third magnet 253. Under the action of the magnetic attraction force, the image stabilization frame 23 can be maintained at the center position of the drive device 20 (i.e., a position approximately coinciding with the optical axis). In other words, the image stabilization frame 23 can be reset to the center position of the drive device 20 under the action of the magnetic attraction force.

[0163] In one embodiment of this application, the upper surface of the magnetic member 21233 is wrapped by the base body 2121, such as... Figure 10 As shown; in other embodiments of this application, the upper surface of the magnetic member 21233 may also be exposed and not covered by the base body 2121, and this application is not limited to this.

[0164] Continue to refer to Figure 9As shown, in one embodiment of this application, the base conductive component 2124 is embedded into the base body 2121 by, for example, insert molding, to provide a base 212 with conductive function, so that the image stabilization coil 27 and the image stabilization position sensing unit 282 can be electrically connected to the chip circuit board 32 of the photosensitive component 30 through the base conductive component 2124 of the base 212. Furthermore, the base conductive component 2124 is embedded into the base body 2121 by insert molding, and the base 212 is adapted to provide two flat mounting surfaces for mounting and fixing the image stabilization coil 27, the image stabilization position sensing unit 282, and the photosensitive component 30. This not only reduces the number of components in the driving device 20 and the assembly complexity of the driving device 20, but also protects the base conductive component 2124.

[0165] Specifically, in one embodiment of this application, the magnetic attraction component 2123 and the base conductive component 2124 are made of different materials. The magnetic attraction component 2123 is made of a magnetically conductive material so that it can generate a magnetic attraction force with the second magnet 252 and the third magnet 253 of the magnet part 25. The base conductive component 2124 is made of a non-magnetically conductive material for signal conduction, thereby achieving the advantages of independent function and simplified assembly of the drive device 20. In other words, the base conductive component 2124 cannot generate a magnetic attraction force with the magnet part 25 to attract each other.

[0166] More specifically, the base conductive assembly 2124 includes a conductive portion 21241 and multiple pins 21242, which are integrally formed from a conductive material. The conductive portion 21241 is embedded in the base body 2121 via, for example, insert molding. The multiple pins 21242 are exposed and not covered by the base body 2121, and are electrically connected to the chip circuit board 32 of the photosensitive assembly 30, thereby electrically connecting the image stabilization coil 27, the image stabilization position sensing unit 282, and the chip circuit board 32. It is understood that the number of conductive portions 21241 and the number of pins 21242 are related to the number of circuits required for the image stabilization coil 27 and the image stabilization position sensing unit 282, and this application does not impose any limitations on this.

[0167] like Figure 2 , Figure 3 and Figure 11As shown, in one embodiment of this application, the drive device 20 further includes a side connection portion 29, which is disposed on the side wall of the anti-shake frame 23 and the base 212. The side connection portion 29 has a thin sheet-like structure. One end of the side connection portion 29 is connected to the side wall of the anti-shake frame 23, and the other end of the side connection portion 29 is connected to the side wall of 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 range of stroke.

[0168] Specifically, in one embodiment of this application, the side connecting portion 29 includes a first connecting end fixed to the image stabilization frame 23, a second connecting end fixed to the base 212, and an elastically deformable portion integrally connected to the first and second connecting ends. The elastically deformable portion 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 elastically deformable portion 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 connecting portion 29.

[0169] More specifically, such as Figure 11 As shown, in one embodiment of this application, the side connecting portion 29 includes a first side spring 291, a second side spring 292, a third side spring 293, and a fourth side spring 294. The first side spring 291 and the second side spring 292 are disposed on one side of the driving device 20, while the third side spring 293 and the fourth side spring 294 are disposed on the opposite side of the driving device 20, so that the anti-shake frame 23 receives a symmetrical restoring force after movement. Alternatively, it can be said that the first side spring 291, the second side spring 292, the third side spring 293, and the fourth side spring 294 are symmetrically arranged with respect to the X-axis or Y-axis direction.

[0170] Further, in one embodiment of this application, the first connecting end of the first side spring 291 is electrically connected to the first portion 2411 of the first spring 241, and the second connecting end of the first side spring 291 is electrically connected to the base conductive component 2124 of the base 212; the first connecting end of the second side spring 292 is electrically connected to the second portion 2412 of the first spring 241, and the second connecting end of the second side spring 292 is electrically connected to the base conductive component 2124 of the base 212; the first connecting end of the third side spring 293 is electrically connected to the third portion 2413 of the first spring 241, and the second connecting end of the third side spring 293 is electrically connected to the base conductive component 2124 of the base 212; the first connecting end of the fourth side spring 294 is electrically connected to the fourth portion 2414 of the first spring 241, and the second connecting end of the fourth side spring 294 is electrically connected to the base conductive component 2124 of the base 212, so as to realize the circuit conduction of the driving device 20. In other words, the first spring 241 is electrically connected to the focusing circuit board 2812 and the side connection part 29, and the side connection part 29 is electrically connected to the first spring 241 and the base conductive assembly 2124. The circuit of the driving device 20 is turned on through the first spring 241 and the side connection part 29.

[0171] Understandably, the side connection 29 can provide a more symmetrical restoring force for the anti-shake frame 23 and can also realize the electrical connection of the drive device 20. Furthermore, the side connection 29 is disposed on the side wall of the drive device 20, and the first spring piece 241 is disposed on the top of the drive device 20, which avoids interference or short circuit between the two, thereby avoiding affecting the driving effect.

[0172] Array module

[0173] An array module includes a multi-camera module consisting of two or more camera module units. For example, an array module may include two camera module units and thus be referred to as a dual-camera module, or an array module may include three camera module units and thus be referred to as a triple-camera module. In this application, the array module may also include four, five or more camera module units, but this application is not limited thereto.

[0174] Figure 12The diagram shows a top view of the array module 2 of this application. The array module 2 includes a first camera module 20a and a second camera module 20b. The first camera module 20a includes a first photosensitive component, a first optical lens 22a held in the photosensitive path of the first photosensitive component, and a first driving device 21a for driving the first optical lens 22a to move to achieve optical performance adjustment. The second camera module 20b includes a second photosensitive component, a second optical lens 22b held in the photosensitive path of the second photosensitive component, and a second driving device 21b for driving the second optical lens 22b to move to achieve optical performance adjustment. The first camera module 20a uses the aforementioned driving device 20 as the first driving device 21a. In other words, the first driving device 21a is implemented as the aforementioned driving device 20, and the first camera module 20a is the aforementioned camera module 1 equipped with the driving device 20.

[0175] In one embodiment of this application, the array module 2 further includes a module bracket 20c. The first camera module 20a and the second camera module 20b are housed in and fixed to the module bracket 20c. In a specific example of this application, the module bracket 20c includes a bracket frame portion 21c and a bracket connecting portion 22c. The bracket connecting portion 22c is integrally connected to the bracket frame portion 21c and divides the bracket frame portion 21c into two module receiving areas. The first camera module 20a and the second camera module 20b are respectively installed in the two module receiving areas of the module bracket 20c.

[0176] like Figure 12 As shown, the first camera module 20a and the second camera module 20b are adjacent to each other. The adjacent sides of the first camera module 20a and the second camera module 20b are not provided with magnet parts 25. In other words, the first magnet 251 of the magnet part 25 is provided on the opposite side of the adjacent side of the driving device 20 (first driving device 21a), and the second magnet 252 and the third magnet 253 are respectively provided on the adjacent sides of the adjacent side of the driving device 20.

[0177] The second driving device 21b includes at least one driving magnet 211b and a driving coil disposed opposite to the at least one driving magnet 211b. The driving magnet 211b cooperates with the driving coil to drive the second optical lens 22b to move. In one embodiment of this application, the at least one driving magnet 211b includes a driving magnet 211b disposed on the adjacent side of the second driving device 21b and the driving device 20. Since no magnet part 25 is disposed on the adjacent side of the driving device 20, the electromagnetic interference generated by the magnet part 25 of the driving device 20 to the driving magnet 211b and the driving coil of the second driving device 21b is low or even non-existent. The electromagnetic interference generated by the driving magnet 211b of the second driving device 21b to the magnet part 25, the focusing coil part 26 and the image stabilization coil part 27 of the driving device 20 is low or even non-existent.

[0178] For suitability for use in array module 2, refer to Figures 1 to 11 The driving device 20 (first driving device 21a) described in this application may further have the following characteristics. In one embodiment of this application, the connector 236, which is fixed to the third side 2313, is disposed on the side of the driving device 20 near the second driving device 21b. The connector 236 may be made of a material with magnetic properties, so that the connector 236 can play a role in magnetic isolation and reduce electromagnetic interference between the driving device 20 and the second driving device 21b.

[0179] In one embodiment of this application, such as Figure 3 and Figure 11 As shown, since the focus position sensing element 2811 and the focus circuit board 2812 are disposed above the first magnet 251, and the focus position sensing element 2811, the focus circuit board 2812, and the first magnet 251 are located in the extension direction of the first camera module 20a and the second camera module 20b, in order for the first part 2411, the second part 2412, the third part 2413, and the fourth part 2414 of the first spring 241 to provide the focus position sensing element 2811 and the focus circuit board 2812 respectively to conduct the circuit, the first spring 241 is symmetrical about the extension direction of the first camera module 20a and the second camera module 20b. In particular, the second part 2412 and the third part 2413 are symmetrical about the extension direction of the first camera module 20a and the second camera module 20b, so that the second part 2412 and the third part 2413 can be electrically connected to the focus circuit board 2812.

[0180] Furthermore, the side connecting portion 29 is also symmetrical about the direction of extension of the first camera module 20a and the second camera module 20b, such that the first side spring 291, the second side spring 292, the third side spring 293, and the fourth side spring 294 of the side connecting portion 29 can be electrically connected to the first part 2411, the second part 2412, the third part 2413, and the fourth part 2414 of the first spring, respectively. The first side spring 291 and the fourth side spring 294 are symmetrical about the direction of extension of the first camera module 20a and the second camera module 20b, and the second side spring 292 and the third side spring 293 are symmetrical about the direction of extension of the first camera module 20a and the second camera module 20b. Specifically, the first side spring 291 and the second side spring 292 are disposed on the side of the driving device 20 where the second magnet 252 is disposed, and the third side spring 293 and the fourth side spring 294 are disposed on the side of the driving device 20 where the third magnet 253 is disposed. The arrangement of the side connection part 29 can also provide sufficient space for the ball bearing 2011 and optimize the spatial structure of the drive device 20.

[0181] 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: Fixing part; A stabilization frame, which is movably connected to the fixing part; A focusing carrier, which is movably connected to the image stabilization frame; A magnet part is disposed on the anti-shake frame; A focusing coil section is disposed on the focusing carrier and is opposite to the magnet section; A stabilization coil portion is disposed on the fixing portion and is opposite to the magnet portion; as well as A focus position sensing unit, the focus position sensing unit including a focus position sensing element and a focus position sensing magnet, the focus position sensing element being disposed in one of the focus carrier and the image stabilization frame, the focus position sensing magnet being disposed in the other of the focus carrier and the image stabilization frame, the focus position sensing element and the focus position sensing magnet being disposed opposite to each other along the height direction. The focusing carrier includes a carrier body and a side extension. The side extension extends outward from the carrier body. The focusing position sensing element is fixed to the side extension. The focusing position sensing magnet is fixed to the top of the image stabilization frame. The focusing position sensing element is located above the focusing position sensing magnet.

2. The driving device according to claim 1, wherein, The magnet part includes a first magnet, and the anti-shake coil part includes a first anti-shake coil, which is fixed to the fixing part and is opposite to the first magnet.

3. The driving device according to claim 2, wherein, The magnet section further includes a second magnet and a third magnet, which are disposed opposite to each other on both sides of the first magnet. The focusing coil section includes a first focusing coil and a second focusing coil. The first focusing coil is fixed to the focusing carrier and is opposite to the second magnet. The second focusing coil is fixed to the focusing carrier and is opposite to the third magnet. The image stabilization coil section further includes a second image stabilization coil and a third image stabilization coil. The second image stabilization coil is fixed to the fixing part and is opposite to the second magnet. The third image stabilization coil is fixed to the fixing part and is opposite to the third magnet.

4. The driving device according to claim 3, wherein, The focus position sensing unit and the first magnet are located on the same side of the focus carrier, and the focus position sensing magnet is disposed above the first magnet.

5. The driving device according to claim 4, wherein, The first magnet includes a first magnetic part and a second magnetic part, which are stacked together. The second magnetic part is located on the side of the first magnetic part away from the focusing carrier. The magnetic pole direction of the focusing position sensing magnet is the same as the magnetic pole direction of the first magnetic part.

6. The driving device according to claim 4, wherein, The height of the top surface of the first magnet is lower than the height of the top surfaces of the second and third magnets.

7. The driving device according to claim 4, wherein, The image stabilization frame also includes a frame body and a first magnetic conductor fixed to the frame body, wherein the first magnetic conductor is disposed between the focus position sensing magnet and the first magnet.

8. The driving device according to claim 7, wherein, The drive device further includes a suspension part and a support part. The suspension part connects the focusing carrier and the image stabilization frame so that the focusing carrier is suspended in the image stabilization frame. The support part is disposed between the image stabilization frame and the fixing part, and the image stabilization frame is supported by the support part on the fixing part.

9. 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 8, wherein the driving device is adapted to drive the optical lens to move.

10. A driving device, characterized in that, include: A base, the base including a base body and a magnetic suction assembly disposed on the base body; A stabilization frame, which is movably connected to the base; A stabilization coil is disposed on the base body; as well as A magnet section is disposed on the image stabilization frame and is disposed opposite to the image stabilization coil section. The magnet section includes a first magnet, a second magnet, and a third magnet. The second magnet and the third magnet are disposed opposite to each other on both sides of the first magnet. The magnetic attraction component is disposed opposite to the second magnet and the third magnet only along the height direction. A focusing carrier, which is movably connected to the image stabilization frame; A focusing coil section is disposed on the focusing carrier and is opposite to the magnet section; A focus position sensing unit, the focus position sensing unit including a focus position sensing element and a focus position sensing magnet, the focus position sensing element being disposed in one of the focus carrier and the image stabilization frame, the focus position sensing magnet being disposed in the other of the focus carrier and the image stabilization frame, the focus position sensing element and the focus position sensing magnet being disposed opposite to each other along the height direction. The focusing carrier includes a carrier body and a side extension. The side extension extends outward from the carrier body. The focusing position sensing element is fixed to the side extension. The focusing position sensing magnet is fixed to the top of the image stabilization frame. The focusing position sensing element is located above the focusing position sensing magnet.

11. The driving device according to claim 10, wherein, The magnetic attraction component includes a first magnetic attraction part and a second magnetic attraction part. The first magnetic attraction part and the second magnet are arranged opposite each other along the height direction, and the second magnetic attraction part and the third magnet are arranged opposite each other along the height direction.

12. The driving device according to claim 11, wherein, The first magnetic attraction part interacts with the second magnet to generate a first magnetic attraction force, and the second magnetic attraction part interacts with the third magnet to generate a second magnetic attraction force. The first magnetic attraction force and the second magnetic attraction force are mutually symmetrical forces.

13. The driving device according to claim 12, wherein, The first magnetic attraction part and the second magnetic attraction part are disposed on opposite sides of the base body and do not extend to the corners of the base body.

14. The driving device according to claim 13, wherein, The first magnetic attraction part and the second magnetic attraction part are provided on the side of the base body opposite to the second magnet and the third magnet, and the first magnetic attraction part and the second magnetic attraction part are not provided on the side of the base body opposite to the first magnet. The first magnetic attraction part and the second magnetic attraction part will only be attracted by the magnetic force of the second magnet and the third magnet, and will not be attracted by the magnetic force of the first magnet.

15. The driving device according to claim 14, wherein, The first magnetic attraction part includes a first magnetic attraction element and a second magnetic attraction element, which are symmetrically arranged below the second magnet; the second magnetic attraction part includes a third magnetic attraction element and a fourth magnetic attraction element, which are symmetrically arranged below the third magnet.

16. The driving device according to claim 15, wherein, The first magnetic attractor and the second magnetic attractor extend along the length direction of the second magnet, and the first magnetic attractor and the second magnetic attractor are disposed at intervals along the length direction of the second magnet; the third magnetic attractor and the fourth magnetic attractor extend along the length direction of the third magnet, and the third magnetic attractor and the fourth magnetic attractor are disposed at intervals along the length direction of the third magnet.

17. The driving device according to claim 16, wherein, Along the length of the second magnet, the first magnetic attractor and the second magnetic attractor are separately arranged, and the first magnetic attractor and the second magnetic attractor are respectively located at both ends of the second magnet; along the length of the third magnet, the third magnetic attractor and the fourth magnetic attractor are separately arranged, and the third magnetic attractor and the fourth magnetic attractor are respectively located at both ends of the third magnet.

18. The driving device according to claim 17, wherein, The driving device further includes a focusing carrier and a focusing coil portion disposed on the focusing carrier. The focusing coil portion includes a first focusing coil and a second focusing coil. The first focusing coil and the second magnet are disposed opposite each other in the horizontal direction, and the second focusing coil and the third magnet are disposed opposite each other in the horizontal direction. The image stabilization coil includes a first image stabilization coil, a second image stabilization coil, and a third image stabilization coil. The first image stabilization coil and the first magnet are disposed opposite each other in the height direction, the second image stabilization coil and the second magnet are disposed opposite each other in the height direction, and the third image stabilization coil and the third magnet are disposed opposite each other in the height direction.

19. 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 10 to 18, wherein the driving device is adapted to drive the optical lens to move.

20. A driving device, characterized in that, include: Fixing part; A stabilization frame, which is movably connected to the fixing part; A focusing carrier, which is movably connected to the image stabilization frame; A magnet part is disposed on the anti-shake frame; A focusing coil section is disposed on the focusing carrier and is opposite to the magnet section; A stabilization coil portion is disposed on the fixing portion and is opposite to the magnet portion; as well as The focus position sensing unit includes a focus position sensing element and a focus position sensing magnet arranged opposite each other along the height direction. The image stabilization frame includes a frame body, which includes a first side, a second side, a third side and a fourth side arranged sequentially in a counterclockwise direction. The second side and the fourth side are arranged opposite each other on both sides of the first side, and the top surface of the first side is lower than the top surfaces of the second side and the fourth side. The focusing carrier includes a carrier body and a side extension. The side extension extends outward from the carrier body. The focusing position sensing element is fixed to the side extension. The focusing position sensing magnet is fixed to the top of the first side extension. The focusing position sensing element is located above the focusing position sensing magnet.

21. The driving device according to claim 20, wherein, The magnet section includes a first magnet, a second magnet, and a third magnet. The first magnet is fixed to the first side portion, the second magnet is fixed to the second side portion, and the third magnet is fixed to the fourth side portion. 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 fixing portion and faces the first magnet. The second image stabilization coil is fixed to the fixing portion and faces the second magnet. The third image stabilization coil is fixed to the fixing portion and faces the third magnet. The focusing coil section includes a first focusing coil and a second focusing coil. The first focusing coil is fixed to the focusing carrier and faces the second magnet. The second focusing coil is fixed to the focusing carrier and faces the third magnet.

22. The driving device according to claim 21, wherein, The top surface of the first magnet is lower than the top surfaces of the second and third magnets, and the focus position sensing magnet is positioned above the first magnet.

23. The driving device according to claim 21, wherein, The first magnet includes a first magnetic part and a second magnetic part, which are stacked together. The second magnetic part is located on the side of the first magnetic part away from the focusing carrier. The magnetic pole direction of the focusing position sensing magnet is the same as the magnetic pole direction of the first magnetic part.

24. The driving device according to claim 21, wherein, The image stabilization frame also includes a first magnetic conductor fixed to the first side, the first magnetic conductor being disposed between the focus position sensing magnet and the first magnet.

25. The driving device according to any one of claims 20 to 24, wherein, The driving device further includes a first spring, which connects the focusing carrier and the image stabilization frame so that the focusing carrier is suspended in the image stabilization frame. The first spring includes a first part, a second part, a third part and a fourth part arranged in a counterclockwise direction. The first part, the second part and the fourth part and the third part are symmetrically arranged on both sides. The focusing position sensing element is disposed between the first part and the fourth part.

26. The driving device according to claim 25, wherein, The focus position sensing unit further includes a focus circuit board that provides a focus position sensing element conduction circuit, wherein the first part, the second part, the third part and the fourth part are respectively electrically connected to the focus circuit board.

27. The driving device according to claim 26, wherein, The drive device further includes a support portion disposed between the anti-shake frame and the fixing portion, wherein the anti-shake frame is supported by the support portion on the fixing portion.

28. 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 20 to 27, wherein the driving device is adapted to drive the optical lens to move.

Images