Camera module and electronic device

Abstract

This application discloses a camera module and an electronic device. The camera module includes: a circuit board, the circuit board including a circuit board body, a carrier portion and an elastic component, the circuit board body having an annular space, the carrier portion being disposed within the annular space, and the outer periphery of the carrier portion being electrically connected to the circuit board body through the elastic component; a first magnetic component and a second magnetic component that are magnetically coupled, the first magnetic component being connected to the outer periphery of the carrier portion, and the second magnetic component being connected to the circuit board body and disposed opposite to the first magnetic component; and a photosensitive chip connected to the carrier portion.

Description

Technical Field

[0001] This application belongs to the field of photography technology, specifically relating to a camera module and an electronic device. Background Technology

[0002] Consumer electronics products are rapidly iterating and updating. Photography is a crucial aspect of the user experience, and people's demands for the camera functions of electronic products are constantly increasing, including the need for image stabilization. In related technologies, to improve image stabilization in electronic products, the camera module is designed with image stabilization features. Traditional image stabilization technologies mainly employ lens movement alignment schemes, correcting image shift caused by shaking by shifting or tilting the lens.

[0003] However, with technological advancements, camera modules are rapidly evolving towards larger sensors and higher pixel counts, leading to a significant increase in lens weight. To achieve greater thrust, the motor driving the lens requires more coils and larger magnets, resulting in a corresponding increase in motor size. This is not conducive to overall device stacking, and the motor also consumes more power when performing image stabilization. Summary of the Invention

[0004] This application aims to provide a camera module and electronic device that solves the problems of large size of the motor driving the lens, which is not conducive to the overall stacking of the device, and high power consumption when the motor is used for image stabilization.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a camera module, comprising:

[0007] A circuit board, comprising a circuit board body, a carrier portion and an elastic component, wherein the circuit board body is provided with an annular space, the carrier portion is disposed within the annular space, and the outer periphery of the carrier portion is electrically connected to the circuit board body through the elastic component;

[0008] A first magnetic component and a second magnetic component are magnetically coupled, wherein the first magnetic component is connected to the outer peripheral side of the carrier portion, and the second magnetic component is connected to the circuit board body and is disposed opposite to the first magnetic component;

[0009] A photosensitive chip, which is connected to the carrier portion.

[0010] Secondly, embodiments of this application provide an electronic device, including: a housing assembly and the aforementioned camera module;

[0011] The camera module is assembled into the housing assembly.

[0012] In this embodiment, the carrier portion is electrically connected to the circuit board body via the elastic member, enabling an electrical connection between the carrier portion and the circuit board body. Since the first magnetic element is connected to the outer periphery of the carrier portion, and the second magnetic element is connected to the circuit board body and disposed opposite to the first magnetic element, a magnetic force can be generated between the first and second magnetic elements when one is energized, thereby driving the carrier portion to move relative to the circuit board body. Furthermore, since the photosensitive chip is connected to the carrier portion, the carrier portion can drive the photosensitive chip to move, allowing this embodiment to achieve optical image stabilization by moving the photosensitive chip. In this embodiment, the driving force required for the photosensitive chip is relatively small, resulting in low power consumption when achieving image stabilization, and the size of the first and second magnetic elements can be designed to be small, which is beneficial for overall device stacking.

[0013] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the structure of a camera module according to an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the structure of a circuit board according to an embodiment of this application;

[0017] Figure 3 This is a schematic diagram of another circuit board structure in an embodiment of this application;

[0018] Figure 4 This is a schematic diagram of the structure of a track in one embodiment of this application;

[0019] Figure 5 This is a schematic diagram of another track structure in an embodiment of this application;

[0020] Figure 6 This is a schematic diagram illustrating the image stabilization process of a camera module in one embodiment of this application;

[0021] Figure 7 This is a distribution diagram of one type of moving part in an embodiment of this application;

[0022] Figure 8 This is a schematic diagram of a camera module without a limiting structure in an embodiment of this application;

[0023] Figure 9 This is a schematic diagram of the structure of another circuit board in an embodiment of this application;

[0024] Figure 10 This is a schematic diagram of another camera module in the embodiments of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Circuit board; 11. Circuit board body; 111. First body part; 112. Second body part; 1121. Track; 12. Carrier part; 121. Light-transmitting hole; 13. Elastic component; 14. Movable component; 15. Limiting structure;

[0027] 21. First magnetic component; 22. Second magnetic component;

[0028] 30. Photosensitive chip;

[0029] 40. Sensor;

[0030] 50. Lens;

[0031] 60. Optical filters;

[0032] 71. Outer shell; 72. Base;

[0033] 80. Connector. Detailed Implementation

[0034] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0035] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] The following is combined with Figure 1 - Figure 10 This application describes the camera module and electronic device described in the embodiments.

[0039] like Figure 1 and Figure 2 As shown in the figure, this application discloses a camera module, which includes a circuit board 10. The circuit board 10 includes a circuit board body 11, a carrier portion 12, and an elastic member 13. The circuit board body 11 is provided with an annular space, and the carrier portion 12 is disposed in the annular space. The outer periphery of the carrier portion 12 is electrically connected to the circuit board body 11 through the elastic member 13. A first magnetic member 21 and a second magnetic member 22 are magnetically coupled. The first magnetic member 21 is connected to the outer periphery of the carrier portion 12, and the second magnetic member 22 is connected to the circuit board body 11 and disposed opposite to the first magnetic member 21. A photosensitive chip 30 is connected to the carrier portion 12.

[0040] In this embodiment, the carrier portion 12 is electrically connected to the circuit board body 11 via the elastic member 13, enabling an electrical connection between the carrier portion 12 and the circuit board body 11. Since the first magnetic member 21 is connected to the outer periphery of the carrier portion 12, and the second magnetic member 22 is connected to the circuit board body 11 and disposed opposite to the first magnetic member 21, a magnetic force can be generated between the first magnetic member 21 and the second magnetic member 22 when one is energized, thereby driving the carrier portion 12 to move relative to the circuit board body 11. Furthermore, since the photosensitive chip 30 is connected to the carrier portion 12, the carrier portion 12 can drive the photosensitive chip 30 to move, allowing this embodiment to achieve optical image stabilization by moving the photosensitive chip 30. In this embodiment, the driving force required for the photosensitive chip 30 is relatively small, resulting in lower power consumption when achieving image stabilization. Furthermore, the sizes of the first magnetic member 21 and the second magnetic member 22 can be designed to be smaller, which is beneficial for overall device stacking.

[0041] In this embodiment, the camera module is a crucial electronic device for image capture, used to achieve the shooting function. The camera module comprises a lens 50, a photosensitive chip 30, a filter 60, an image signal processor, and focusing and optical image stabilization components. The working principle of the camera module is as follows: light from an object passing through the lens 50 is converted into an electrical signal by the photosensitive chip 30 integrated circuit, then further converted into a digital image signal by the photosensitive chip 30, and finally processed by the digital signal processor, ultimately converting it into standard GRB, YUV, or other format image signals.

[0042] Specifically, the lens 50 may include several lenses, spacers, and a lens barrel, which are used to correct aberrations and improve image quality. Its aperture can control the amount of light entering the lens 50 and is responsible for focusing the light onto the image sensor 30, thus affecting image quality and field of view.

[0043] Specifically, the focusing assembly includes a voice coil motor, which can control the movement of the lens 50 via current to achieve fast, automatic focusing. The voice coil motor includes a housing 71, a reed, a magnet, a coil, a lens 50 carrier, and a base 72. The lens 50 can be mounted on the lens 50 carrier. The reed connects the housing 71 and the lens 50 carrier. Because the reed can elastically deform, the lens 50 carrier can move relative to the housing 71. One of the magnet and the coil is connected to the housing 71, and the other is connected to the lens 50 carrier. The magnet and the coil can provide a stable magnetic field for focusing, and the coil drives the magnet to move. The magnet can move the lens 50 carrier, which in turn can move the lens 50, thereby adjusting the position of the lens 50 and achieving autofocus. The base 72 and the outer shell 71 are connected to form an enclosure space, which can be used to arrange internal components such as the photosensitive chip 30, the filter 60, and the circuit board 10. The base 72 and the outer shell 71 can be made of iron or iron alloy, which gives them strong structural strength. Moreover, the base 72 can serve as the base of the camera module, supporting the entire structure of the camera module.

[0044] Specifically, the filter 60 includes infrared cut-off filters, color filters, etc., used to filter unwanted light and absorb certain wavelengths of light to improve image quality. For example, an infrared cut-off filter can block infrared light and prevent color distortion. The filter 60 can be positioned between the lens 50 and the image sensor 30.

[0045] Specifically, the photosensitive chip 30 is the core module of the camera module. It mainly consists of two types: charge-coupled device (CCD) and complementary metal-oxide-semiconductor (CMOS). It can convert the light signal captured by the lens 50 into an electrical signal to generate image data.

[0046] Specifically, the image signal processor (ISP) performs noise reduction, color correction, and automatic exposure processing on the raw data output by the photosensitive chip 30. It can be used as a standalone chip or integrated into the system chip of an electronic device.

[0047] Specifically, the optical image stabilization component can compensate for hand tremors by moving the photosensitive chip 30, thereby improving imaging stability. The optical image stabilization component may include a circuit board 10, a first magnetic element 21, and a second magnetic element 22. The first magnetic element 21 and the second magnetic element 22 can provide a stable magnetic field for image stabilization. The circuit board 10 may be a printed circuit supported by a flexible insulating substrate, with internal circuitry to provide power to the camera module. It can achieve functions such as power signal transmission through internal circuit connections. The circuit board 10 may be a rigid board or a flexible board, etc., and this embodiment does not specifically limit its application.

[0048] like Figure 2 As shown, the circuit board 10 includes a circuit board body 11 and a carrier portion 12. Both the circuit board body 11 and the carrier portion 12 are provided with circuits to realize the transmission of electrical signals and electrical functions. The carrier portion 12 can be used to carry the photosensitive chip 30 and other components, and the carrier portion 12 can be electrically connected to the photosensitive chip 30 or other components. The surface of the carrier portion 12 can be designed with gold fingers to electrically connect the carrier portion 12 and the photosensitive chip 30 through flip chip technology or thermo-press bonding (TCB) technology.

[0049] Specifically, the circuit board body 11 may have an annular space, and the carrier portion 12 may be arranged within the annular space of the circuit board body 11. The carrier portion 12 may be an inner layer circuit, and the circuit board body 11 may be an outer layer circuit. The carrier portion 12 may be electrically connected to the circuit board body 11 via an elastic member 13, thereby achieving both electrical conduction and physical connection between the carrier portion 12 and the circuit board body 11. The elastic member 13 may undergo elastic deformation and possess elastic mobility, providing a margin of movement for the carrier portion 12, ensuring that the movement of the carrier portion 12 relative to the circuit board body 11 is not interfered with, and guaranteeing the reliability of the movement of the carrier portion 12 relative to the circuit board body 11.

[0050] Optionally, the camera module further includes a connector 80, which can be electrically connected to the circuit board body 11 and can serve to connect the circuit board 10 to external devices.

[0051] Specifically, the circuit board body 11 can be arranged within the receiving space, and the circuit board body 11 can be fixedly installed with the outer casing 71 or the base 72. The circuit board body 11 can be provided with an annular space, which can be a rectangular annular space or a circular annular space, etc., and this application embodiment does not specifically limit this.

[0052] Specifically, the middle area of ​​the circuit board body 11 can be hollowed out to form a ring-shaped space. Alternatively, the circuit board body 11 may also include a stacked through layer and a connecting layer, the middle area of ​​the through layer can be hollowed out to form a ring-shaped space, and the connecting layer can be sealed on one side of the ring-shaped space.

[0053] Specifically, the carrier portion 12 can be a rectangular ring structure or a circular ring structure, etc., and this embodiment does not specifically limit it.

[0054] Furthermore, the first magnetic element 21 is connected to the outer periphery of the carrier portion 12, the carrier portion 12 is connected to the photosensitive chip 30, and the second magnetic element 22 is connected to the circuit board body 11 and is disposed opposite to the first magnetic element 21. Thus, when a magnetic force is generated between the first magnetic element 21 and the second magnetic element 22, the first magnetic element 21 can drive the carrier portion 12 to move, thereby driving the photosensitive chip 30 to move, achieving optical image stabilization. Compared to the prior art scheme of driving the lens 50 to achieve image stabilization, the scheme in this application that achieves image stabilization by driving the photosensitive chip 30 to move has lower power consumption and better response performance under high-frequency shaking conditions.

[0055] Specifically, the first magnetic component 21 and the second magnetic component 22 are magnetically coupled; one of them can be a coil, and the other can be a magnet. The coil can be fixed to the carrier portion 12 and electrically connected to it, or the coil can be fixed to the circuit board body 11 and electrically connected to it. When the coil is energized, it can generate magnetic force with the magnet, thereby enabling the photosensitive chip 30 to move via the carrier portion 12. Figure 2 As shown, the first magnetic component 21 is a magnet, and the magnet can move together with the carrier part 12; as Figure 3 As shown, the first magnetic component 21 is a coil, which can move together with the carrier part 12.

[0056] Specifically, the first magnetic element 21 and the second magnetic element 22 can be arranged in groups of the same number, and the first magnetic element 21 and the second magnetic element 22 in each group are arranged opposite to each other. When there are at least two first magnetic elements 21, the at least two first magnetic elements 21 can be arranged at intervals along the outer periphery of the carrier portion 12, so as to drive the carrier portion 12 to move in multiple directions and improve the reliability of the optical image stabilization function.

[0057] Optionally, the circuit board 10 further includes at least two movable parts 14, which are spaced apart along the outer periphery of the carrier portion 12. The circuit board body 11 is provided with a track 1121 corresponding to the movable parts 14. The track 1121 extends along the axial direction of the carrier portion 12 and is disposed opposite to the outer periphery of the carrier portion 12. The movable parts 14 are connected to the outer periphery of the carrier portion 12, and at least a portion of the movable parts 14 is embedded in the corresponding track 1121 and can move along the corresponding track 1121.

[0058] In this embodiment, the movement trajectory of the carrier 12 can be limited by the cooperation between the movable part 14 and the track 1121, which can improve the stability and reliability of the optical image stabilization function.

[0059] Specifically, at least a portion of the movable component 14 is embedded in the corresponding track 1121, which enables the movable component 14 to slide or roll along the track 1121, thereby reducing the friction between the carrier part 12 and the circuit board body 11.

[0060] Specifically, the movable component 14 can be in the form of a ball bearing or a slider. In some embodiments, the movable component 14 can be fixedly connected to the outer periphery of the carrier portion 12. In this case, the movable component 14 can be in the form of a slider, and the movable component 14 can slide along the axial direction of the carrier portion 12 and engage with the track 1121.

[0061] In some alternative embodiments, the outer periphery of the carrier portion 12 may be provided with a groove opposite to the track 1121; the movable component 14 may be a ball bearing, which may at least partially be embedded in the groove and roll within the groove.

[0062] In this embodiment, the movable component 14 can be presented in the form of a ball bearing and can roll along the axial direction of the carrier portion 12 with the track 1121, so that the friction between the movable component 14 and the circuit board body 11 is small, thereby reducing the friction of the carrier portion 12 moving on the predetermined track 1121.

[0063] Specifically, the ball can roll into the groove, and the groove can limit the ball to prevent it from separating from the carrier part 12.

[0064] Specifically, the track 1121 is formed on the circuit board body 11, and the track 1121 extends axially along the carrier portion 12, so that the track 1121 can restrict the movement of the movable part 14 along the axial direction of the carrier portion 12. Figure 4 As shown, the shape of track 1121 can be arc-shaped, or, as... Figure 5As shown, the shape of the track 1121 can be irregular, and the shape of the track 1121 can be adapted to the shape of the movable part 14 to ensure the reliability of the movable part 14 moving along the axial direction of the carrier part 12. The specific shape of the track 1121 is not limited in the embodiments of this application.

[0065] Specifically, the movable parts 14 and the tracks 1121 can be arranged in a one-to-one correspondence, with at least two movable parts 14 spaced apart along the outer periphery of the carrier portion 12, facilitating reliable tilt adjustment of the carrier portion 12. For example... Figure 6 As shown, from state a to state b, the left side of the carrier part 12 moves downward and the right side can move upward accordingly; from state b to state c, the left side of the carrier part 12 moves upward and the right side can move downward accordingly.

[0066] Specifically, the number of movable parts 14 can be two, three, four, or five, etc. Figure 7 As shown, this illustrates a case where there are four movable parts 14. Other cases can be set similarly, and will not be described in detail here in this embodiment.

[0067] Specifically, at least two movable parts 14 can be evenly spaced or evenly spaced along the outer periphery of the carrier part 12, and the specific choice can be made according to actual needs.

[0068] In some alternative embodiments, such as Figure 7 As shown, at least two moving parts 14 can have the same circumscribed circle, and the center of the circumscribed circle can be located on the axis of the carrier part 12. In this way, the carrier part 12 can move with its midpoint as the fulcrum, which can ensure the stability and reliability of the movement of the carrier part 12 relative to the circuit board body 11.

[0069] Specifically, with Figure 7 Taking the four movable parts 14 shown as an example, the four movable parts 14 are evenly spaced along the outer periphery of the carrier part 12, and the center of the common circumscribed circle of the four movable parts 14 is located on the axis of the carrier part 12. That is, the four movable parts 14 are symmetrically distributed with respect to the center of the circumscribed circle, and the carrier part 12 can move symmetrically with the center of the circumscribed circle. Figure 7 As shown, four symmetrical arc-shaped tracks 1121 are arranged around the corresponding carrier part 12. Each track 1121 can be arranged in a quadrant. In this way, the movable part 14 cooperates with the arc-shaped track 1121 so that the carrier part 12 can use its center point as a fulcrum and make stable and flexible anti-shaking movements around its center point.

[0070] Optionally, a limiting structure 15 is provided at both ends of the track 1121 along the axial direction of the carrier portion 12; the limiting structure 15 is connected to the circuit body and covers at least a portion of the track 1121.

[0071] In this embodiment, two limiting structures 15 are provided at both ends of the track 1121 along the axial direction of the carrier portion 12. The maximum range of motion of the movable part 14 can be limited by the limiting structures 15 to prevent the movable part 14 from moving out of the track 1121, thereby effectively preventing interference between the movable part 14 and the lens 50.

[0072] Specifically, such as Figure 8 As shown, without the limiting structure 15, the movable part 14 may at least partially move out of the track 1121 and interfere with the lens 50. Therefore, in this embodiment, by adding the limiting structure 15, the situation where the movable part 14 interferes with the lens 50 can be avoided.

[0073] Specifically, by adding limiting structures 15 at both ends of the track 1121 along the axial direction of the carrier portion 12, the movement range of the movable component 14 can be limited by the limiting structures 15, thereby controlling the maximum anti-shake angle.

[0074] Specifically, the limiting structure 15 can be fixedly connected to the circuit board body 11 by means of bonding or welding. The material of the limiting structure 15 can be plastics such as liquid crystal polymer (LCP), and the structural strength of the fiber structure can be freely adjusted by adding glass fiber. Alternatively, the material of the limiting structure 15 can also be metal. The limiting structure 15 can have a certain structural strength to meet mechanical reliability and ensure the limiting function of the moving part 14. The specific limitations of the limiting structure 15 in this application embodiment are not limited.

[0075] Optionally, the circuit board body 11 may include a first body portion 111 and at least two second body portions 112; the first body portion 111 is sleeved on the carrier portion 12, and the inner periphery of the first body portion 111 forms an annular space; at least two second body portions 112 are disposed in the annular space and surround the carrier portion 12, one end of the second body portion 112 is connected to the first body portion 111, and the other end of the second body portion 112 is provided with a track 1121; a second magnetic element 22 is connected to the first body portion 111 and / or the second body portion 112; along the circumference of the carrier portion 12, the second body portion 112 and the elastic element 13 are spaced apart.

[0076] In this embodiment, one end of the second body part 112 is connected to the first body part 111, and the other end is provided with a track 1121, so that the first body part 111 can be disposed between the first body part 111 and the carrier part 12, thereby realizing the transfer between the carrier part 12 and the first body part 111 and enhancing the fit strength between the carrier part 12 and the first body part 111.

[0077] Specifically, the number of second body parts 112 can be the same as the number of tracks 1121, and the second body parts 112 can serve as the carrier of tracks 1121.

[0078] Specifically, the first body portion 111 can be rectangular or circular. The first body portion 111 is fitted onto the carrier portion 12 and can be spaced apart from it. The shapes of the first body portion 111 and the carrier portion 12 are adapted to each other, so that an elastic member 13 and a second body portion 112 can be arranged between the first body portion 111 and the carrier portion 12. Along the circumference of the carrier portion 12, the second body portion 112 and the elastic member 13 are spaced apart, and both the second body portion 112 and the elastic member 13 can serve to transfer the carrier portion 12 to the first body portion 111.

[0079] Specifically, such as Figure 9 As shown, both the first body portion 111 and the carrier portion 12 are rectangular rings, with the apex corners of the first body portion 111 and the carrier portion 12 facing each other. The second body portion 112 can be connected to the apex corners of both the first body portion 111 and the carrier portion 12, and the elastic member 13 can be connected to the sides of both the first body portion 111 and the carrier portion 12. In other embodiments, the positions of the second body portion 112 and the elastic member 13 can be interchanged.

[0080] Specifically, the second body part 112 may include a connecting section and a mounting section. The connecting section may be connected between the first body part 111 and the mounting section. The connecting section may be integrally formed with the first body part 111, or the connecting section may be integrally formed with the mounting section, etc. The mounting section may have a track 1121, and the limiting structure 15 may be connected and fixed to the mounting section. The mounting section and the limiting structure 15 may be integrally formed or spliced ​​and fixed, etc.

[0081] Specifically, the second magnetic element 22 can be connected to the first body portion 111 and / or the second body portion 112, which can improve the convenience of arranging the second magnetic element 22.

[0082] Optionally, the number of the second body portion 112, the second magnetic element 22, the first magnetic element 21, and the elastic element 13 can be the same; the second magnetic element 22 is respectively provided corresponding to the second body portion 112 and the first magnetic element 21, and the second magnetic element 22 is connected to the corresponding second body portion 112; along the circumferential direction of the carrier portion 12, an elastic element 13 is provided between two adjacent second body portions 112.

[0083] In this embodiment, the second body part 112 can be used as a carrier for both the second magnetic element 22 and the track 1121. The second magnetic element 22 and the track 1121 are arranged close to each other, so that the first magnetic element 21 and the movable part 14 are arranged close to each other, which helps to reduce the driving force and improve the convenience of the movable part 14 moving along the track 1121.

[0084] Specifically, along the circumferential direction of the carrier portion 12, an elastic member 13 is provided between two adjacent second body portions 112 to improve the uniformity of the distribution of the elastic member 13 and the second body portion 112, thereby improving the connection reliability between the first body portion 111 and the carrier portion 12.

[0085] Specifically, such as Figure 9 As shown, the second body part 112 is connected to the top corner of the first body part 111, and the first magnetic component 21 and the movable component 14 are both connected to the top corner of the carrier part 12.

[0086] Optionally, such as Figure 9 and Figure 10 As shown, the elastic member 13 may include a bending suspension wire, one end of which may be electrically connected to the outer periphery of the carrier portion 12, and the other end of which may be electrically connected to the circuit board body 11.

[0087] In this embodiment, a bent suspension wire is used to connect the carrier part 12 and the circuit board body 11. The bent suspension wire can deform when the carrier part 12 moves relative to the circuit board body 11, so as to avoid interfering with the movement of the carrier part 12 and ensure the reliability of optical image stabilization.

[0088] Specifically, the bending suspension wire can serve to conduct the circuit between the carrier part 12 and the circuit board body 11, and has elastic mobility. When the carrier part 12 is subjected to force, the bending suspension wire can bend and deform at an angle.

[0089] Specifically, the elastic component 13 may include multiple bent suspension wires, and the number of bent suspension wires is not specifically limited in this embodiment. The bent suspension wires may be Z-shaped or wavy, etc.

[0090] In some optional embodiments of this application, the camera module further includes a sensor 40. Along the axial direction of the carrier portion 12, the sensor 40 and the photosensitive chip 30 can be electrically connected to opposite sides of the carrier portion 12, respectively; or, the sensor 40 is disposed on the outer periphery of the carrier portion 12.

[0091] In this embodiment, the sensor 40 and the photosensitive chip 30 can be located on opposite sides or adjacent sides of the carrier portion 12, which can avoid interference between the sensor 40 and the photosensitive chip 30 and improve the rationality of the layout of the carrier portion 12. Moreover, the sensor 40 is electrically connected to the carrier portion 12, and the position of the carrier portion 12 can be obtained through the sensor 40, which plays a role in driving the closed loop in the process of realizing the optical image stabilization function.

[0092] Specifically, the sensor 40 may include a Hall effect sensor (HLL), a tunnel magnetoresistance element (TMR), or a gyroscope (Gyro), etc. The magnets in the first magnetic element 21 and the second magnetic element 22 create a magnetic field space. The sensor 40 senses its own position in the magnetic field. When the position of the carrier portion 12 changes, the sensor 40 can detect the change in its own position, thereby providing feedback on the positions of the carrier portion 12 and the photosensitive chip 30, thus achieving closed-loop feedback.

[0093] Specifically, the sensor 40 can be positioned close to the coil, or the sensor 40 can be positioned within a recess.

[0094] When the camera module is activated, the sensor 40 detects vibration and feeds it back to the driver IC of the electronic device. Under the control of a control algorithm (PID control program) that combines proportional, integral and derivative functions, the coils in the first magnetic component 21 and the second magnetic component 22 are energized. The energization of these coils generates a current magnetic effect. Since the first magnetic component 21 is connected to the carrier part 12, the carrier part 12 moves under the action of Ampere force, which is reflected in the movement along the track 1121 along the movable part 14, thereby driving the photosensitive chip 30 to move and achieve tilt anti-shake.

[0095] Specifically, such as Figure 6 As shown, along the axial direction of the carrier portion 12, that is, in the Z direction, the sensor 40 senses that the left side is slightly higher and the right side is slightly lower. For example, the left side is the N pole of the magnetic field and the right side is the S pole of the magnetic field. Through software algorithm, a clockwise current is supplied to the coil on the left and a counterclockwise current is supplied to the coil on the right. According to the right-hand rule of Lorentz force, the left side of the carrier portion 12 moves downward and the right side moves upward, thereby controlling the photosensitive chip 30 to tilt and move in the Z direction to achieve the anti-shake function.

[0096] In some alternative embodiments, the camera module includes a lens 50, and along the axial direction of the carrier portion 12, the lens 50 and the photosensitive chip 30 are disposed on opposite sides of the carrier portion 12; the carrier portion 12 has an annular structure, and the inner periphery of the carrier portion 12 forms a light-transmitting hole 121, which is opposite to the lens 50 and the photosensitive chip 30 respectively.

[0097] In this embodiment, the light collected by the lens 50 can pass through the light-transmitting hole 121 and be directed to the photosensitive chip 30, thereby achieving imaging.

[0098] Specifically, the shape of the light-transmitting hole 121 can be designed with reference to the shape of the lens 50, or with reference to the light-sensitive area on the photosensitive chip 30, etc. The light-transmitting hole 121 can be a circular hole or a rectangular hole, etc. In this embodiment, the shape of the light-transmitting hole 121 is not specifically limited.

[0099] The camera module described in this application embodiment has at least the following advantages:

[0100] In this embodiment, the carrier portion is electrically connected to the circuit board body via the elastic member, enabling an electrical connection between the carrier portion and the circuit board body. Since the first magnetic element is connected to the outer periphery of the carrier portion, and the second magnetic element is connected to the circuit board body and disposed opposite to the first magnetic element, a magnetic force can be generated between the first and second magnetic elements when one is energized, thereby driving the carrier portion to move relative to the circuit board body. Furthermore, since the photosensitive chip is connected to the carrier portion, the carrier portion can drive the photosensitive chip to move, allowing this embodiment to achieve optical image stabilization by moving the photosensitive chip. In this embodiment, the driving force required for the photosensitive chip is relatively small, resulting in low power consumption when achieving image stabilization, and the size of the first and second magnetic elements can be designed to be small, which is beneficial for overall device stacking.

[0101] Secondly, embodiments of this application also disclose an electronic device, which includes a housing assembly and the aforementioned camera module, wherein the camera module can be mounted on the housing assembly.

[0102] In this application embodiment, the electronic device includes, but is not limited to, mobile phones, tablets, laptops, smartwatches, or drones.

[0103] Specifically, the housing assembly is the external structure of the electronic device, used to protect the internal components of the electronic device.

[0104] Specifically, the electronic device described in the embodiments of this application can achieve the same beneficial effects as the camera module described above, and will not be repeated here.

[0105] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0106] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An image capturing module, comprising: include: A circuit board, comprising a circuit board body, a carrier portion and an elastic component, wherein the circuit board body is provided with an annular space, the carrier portion is disposed within the annular space, and the outer periphery of the carrier portion is electrically connected to the circuit board body through the elastic component; A first magnetic component and a second magnetic component are magnetically coupled, wherein the first magnetic component is connected to the outer peripheral side of the carrier portion, and the second magnetic component is connected to the circuit board body and is disposed opposite to the first magnetic component; A photosensitive chip, which is connected to the carrier portion.

2. The camera module of claim 1, wherein, The circuit board further includes at least two movable parts, which are spaced apart along the outer periphery of the carrier portion. The circuit board body is provided with a track corresponding to the movable parts, which extends along the axial direction of the carrier portion and is disposed opposite to the outer periphery of the carrier portion. The movable component is connected to the outer periphery of the carrier portion, and at least a portion of the movable component is embedded in the corresponding track and can move along the corresponding track.

3. The camera module of claim 2, wherein, Limiting structures are provided at both ends of the track along the axial direction of the carrier portion; The limiting structure is connected to the circuit board body and covers at least a portion of the track.

4. The camera module of claim 2, wherein, The circuit board body includes a first body portion and at least two second body portions; The first body portion is sleeved on the carrier portion, and the inner periphery of the first body portion is closed to form the annular space; The at least two second body parts are disposed within the annular space and surround the carrier part. One end of the second body part is connected to the first body part, and the other end of the second body part is provided with the track. The second magnetic element is connected to the first body portion and / or the second body portion; Along the circumferential direction of the carrier portion, the second body portion and the elastic member are spaced apart.

5. The camera module of claim 4, wherein, The number of the second body part, the second magnetic element, the first magnetic element, and the elastic element are the same; The second magnetic element is respectively disposed corresponding to the second body part and the first magnetic element, and the second magnetic element is connected to the corresponding second body part; Along the circumference of the carrier portion, an elastic member is disposed between two adjacent second body portions.

6. The camera module of claim 2, wherein, The outer periphery of the carrier portion is provided with a groove opposite to the track; The movable component is a ball bearing, which is at least partially embedded in the groove and can roll within the groove.

7. The camera module of claim 1, wherein, The elastic component includes a bending suspension wire, one end of which is electrically connected to the outer periphery of the carrier portion, and the other end of which is electrically connected to the circuit board body.

8. The camera module of claim 1, wherein, The camera module also includes a sensor, and the sensor and the photosensitive chip are electrically connected to opposite sides of the carrier portion along the axial direction of the carrier portion; Alternatively, the sensor may be disposed on the outer periphery of the carrier portion.

9. The camera module of claim 1, wherein, The camera module includes a lens, and the lens and the photosensitive chip are disposed on opposite sides of the carrier portion along the axial direction of the carrier portion; The carrier portion has a ring-shaped structure, and the inner periphery of the carrier portion forms a light-transmitting hole, which is respectively opposite to the lens and the photosensitive chip.

10. An electronic device, characterized in that, Includes: a housing assembly and the camera module according to any one of claims 1-9; The camera module is assembled into the housing assembly.

Images