Camera modules and electronic devices

Abstract

The present application discloses a camera module and an electronic device. The camera module includes a housing, an image sensor, an optical component, a driving component and a limiting component. The housing has a receiving cavity. The image sensor is arranged in the receiving cavity. The optical component can move along the optical axis of the optical component relative to the image sensor. The driving component is used to drive the optical component to move along the optical axis. The limiting component is arranged between the optical component and the housing. When the limiting component connects the optical component and the housing, the limiting component is used to adjust its own size in the direction of the optical axis to adjust the deflection angle of the optical component and / or adjust the position of the optical component. The limiting component can control the angle of deflection of the optical component relative to the optical axis, so that the imaging surface of the optical component falls on the image sensor to ensure that the image can be clearly imaged everywhere. At different temperatures, the limiting component can adjust the distance between the optical component and the image sensor so that the imaging surface falls on the image sensor to improve the imaging clarity.

Description

Technical Field

[0001] The present application relates to the field of electronic equipment, and in particular to a camera module and an electronic device. Background Art

[0002] For camera modules in electronic products, some existing products or solutions have telescopic mechanisms for realizing the pop-up and retracting functions, thereby saving the internal space of electronic products. Users may use the device to shoot in different environments. The physical focal length and mechanical length of the lens group used for imaging will change under different environmental conditions. When the changes are more obvious, the image quality will be significantly degraded. Summary of the invention

[0003] Embodiments of the present application provide a camera module and an electronic device.

[0004] The camera module provided in the embodiment of the present application includes a housing, an image sensor, an optical component, a drive component and a limiter component. The housing has a receiving cavity. The image sensor is arranged in the receiving cavity. The optical component can move along the optical axis of the optical component relative to the image sensor. The drive component is connected to the optical component, and the drive component is used to drive the optical component to move along the optical axis. The limiter component is arranged between the optical component and the housing. When the limiter component connects the optical component and the housing, the limiter component is used to adjust its own size in the direction of the optical axis to adjust the deflection angle of the optical component and / or adjust the position of the optical component.

[0005] The electronic device provided in the embodiment of the present application includes a housing and the above-mentioned camera module, wherein the camera module is movably arranged on the housing, and the camera module can be extended out of the housing or retracted into the housing.

[0006] In this way, the limit component can control the deflection angle of the optical component relative to the optical axis, so that the imaging surface of the optical component falls on the image sensor to ensure clear imaging everywhere. At different temperatures, the limit component can adjust the distance between the optical component and the image sensor so that the imaging surface falls on the image sensor to improve imaging clarity.

[0007] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0009] Figure 1is a cross-sectional schematic diagram of a camera module according to an embodiment of the present application;

[0010] Figure 2 is another schematic diagram of a camera module according to an embodiment of the present application;

[0011] Figure 3 is a structural schematic diagram of a camera module according to an embodiment of the present application;

[0012] Figure 4 is another schematic diagram of a camera module according to an embodiment of the present application;

[0013] Figure 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0014] Figure 6 is another structural schematic diagram of an electronic device according to an embodiment of the present application;

[0015] Figure 7 It is a schematic diagram of the structure of a camera module according to an embodiment of the present application;

[0016] Figure 8 is a partial cross-sectional schematic diagram of a camera module according to an embodiment of the present application in one embodiment;

[0017] Fig. 9 is a partial cross-sectional schematic diagram of a camera module according to an embodiment of the present application in another embodiment;

[0018] Fig.10 is a partial cross-sectional schematic diagram of a camera module according to another embodiment of the present application;

[0019] Fig.11 is a partial cross-sectional schematic diagram of a camera module according to an embodiment of the present application in yet another embodiment;

[0020] Fig.12 is a partial cross-sectional schematic diagram of a camera module according to an embodiment of the present application in yet another embodiment;

[0021] Fig.13 is a partial cross-sectional schematic diagram of a camera module according to an embodiment of the present application in yet another embodiment;

[0022] Fig.14 is a partial cross-sectional schematic diagram of a camera module according to an embodiment of the present application in yet another embodiment;

[0023] Fig.15 is a cross-sectional schematic diagram of a camera module according to an embodiment of the present application in another embodiment;

[0024] Fig.16 is a cross-sectional schematic diagram of a camera module according to an embodiment of the present application in another embodiment;

[0025] Fig.17 is a partial cross-sectional schematic diagram of a camera module according to an embodiment of the present application in yet another embodiment;

[0026] Fig.18 It is a partial cross-sectional schematic diagram of an optical component according to another embodiment of the present application.

[0027] Description of main component symbols: Camera module 100

[0028] The outer shell 10, the accommodating cavity 101, the through hole 102, the inner top surface 111, the image sensor 20, the optical component 30, the lens barrel 31, the barrel body 311, the flange 312, the lens 32, the imaging surface 33, the limiting component 40, the limiting structure 41, the locking portion 411, the driving component 412, the electromagnetic component 4121, the permanent magnetic component 4122, the circuit board 50, the driving component 60, the elastic element 61, the driving component 62, the casing 200, and the camera module 1000. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that the terms, "length", "width", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] The terms "first" and "second" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0034] See also Figure 1-Figure 4 The camera module 100 provided in the embodiment of the present application includes a housing 10, an image sensor 20, an optical component 30, a driving component 60 and a limiting component 40. The housing 10 has a receiving cavity 101. The image sensor 20 is disposed in the receiving cavity 101. The optical component 30 can move along the optical axis L1 of the optical component 30 relative to the image sensor 20. The driving component 60 is connected to the optical component 30, and the driving component 60 is used to drive the optical component 30 to move along the optical axis L1. The limiting component 40 is disposed between the optical component 30 and the housing 10. When the limiting component 40 connects the optical component 30 and the housing 10, the limiting component 40 is used to adjust its own size in the direction of the optical axis L1 to adjust the deflection angle of the optical component 30 and / or adjust the position of the optical component 30.

[0035] At present, the autofocus motor of the camera module is often coupled with the optical image stabilization motor. Adding a temperature compensation mechanism will increase the overall size of the motor, especially in the thickness direction. On the other hand, using the autofocus motor to achieve temperature compensation requires that the relevant parameters be called according to the temperature during the autofocus process. And the autofocus motor can only adjust the lens position in one degree of freedom.

[0036] In the camera module 100 of the embodiment of the present application, the limit assembly 40 can control the angle of deflection of the optical assembly 30 relative to the optical axis L1, so that the imaging surface 33 of the optical assembly 30 falls on the image sensor 20 to ensure that the image can be clearly imaged everywhere. At different temperatures, the limit assembly 40 can adjust the distance between the optical assembly 30 and the image sensor 20 so that the imaging surface 33 falls on the image sensor 20 to improve the imaging clarity. At the same time, the camera module 100 provided in the embodiment of the present application avoids the increase in the thickness of the autofocus motor caused by directly adding a temperature compensation stroke to the autofocus motor, thereby realizing the miniaturization of the overall camera module 100. At the same time, the limit assembly 40 can make the optical assembly 30 rotate in two directions to compensate for the tilt of the optical axis L1 during imaging.

[0037] See also Figure 1 , Figure 5 and Figure 6 The camera module 100 provided in the embodiment of the present application can be used in an electronic device 1000, and the electronic device 1000 includes a housing 200 and a camera module 100, and the camera module 100 is movably arranged on the housing 200, and the camera module 100 can be extended out of the housing 200 or retracted into the housing 200.

[0038] Thus, when the electronic device 1000 activates the shooting function, the camera module 100 can extend out of the housing 200. Figure 5 As shown, the external space of the electronic device 1000 can be used to set up an optical component 30 with a larger total optical length, so that the optical component 30 can provide the user with better photo and video shooting effects; when the electronic device 1000 turns off the shooting function, the camera module 100 can be retracted into the housing 200, as shown in FIG. Figure 6 As shown, the height of the camera module 100 is reduced to achieve a lighter and thinner electronic device 1000 .

[0039] In some embodiments, along the thickness direction of the electronic device 1000, the outer surface of the outer shell 10 and the outer surface of the housing 200 are located at the same height. When the electronic device 1000 starts the shooting function, the optical component 30 can be extended to the outside of the outer shell 10, that is, outside the housing 200, so that the optical component 30 is in a working state; when the electronic device 1000 turns off the shooting function, the optical component 30 can be retracted into the outer shell 10, that is, into the housing 200, so that the optical component 30 is in a non-working state, and the electronic device 1000 can also be made flatter and more beautiful.

[0040] The driving assembly 60 is used to drive the optical assembly 30 to move along the optical axis L1 so that the optical assembly 30 extends out of the housing 10 and / or pops out of the housing 10. When the electronic device 1000 starts the shooting function, the driving assembly 60 can drive the optical assembly 30 to move along the optical axis L1 in a direction away from the image sensor 20, so that the optical assembly 30 at least partially extends out of the housing 200. When the electronic device 1000 turns off the shooting function, the driving assembly 60 can drive the optical assembly 30 to move along the optical axis L1 in a direction close to the image sensor 20, so that the optical assembly 30 retracts into the housing 200 to reduce the height of the camera module 100.

[0041] The driving assembly 60 may include a power member and a transmission assembly connected to the power member, the power member and the transmission assembly may be arranged in the accommodating cavity 101, and the transmission assembly is connected to the optical assembly 30. The stepping power member may be used to drive the transmission assembly to drive the optical assembly 30 to move along the optical axis L1, thereby realizing the ejection and retraction of the optical assembly 30. The power member may include but is not limited to a stepping motor, a piezoelectric motor or an electromagnetic motor, and the transmission assembly may include but is not limited to a gear set or a worm gear.

[0042] In one embodiment, the driving assembly 60 may include a stepper motor and a gear box connected to the stepper motor. The gear box is connected to the optical assembly 30, and the stepper motor drives the gear box to drive the optical assembly 30 to move along the optical axis L1, so that the optical assembly 30 can be moved to a target position to enter a working state, and the optical assembly 30 can also be driven to move along the optical axis L1 to the housing 10 for storage.

[0043] For ease of description, a mobile phone may be used as a specific example of the electronic device 1000 of the embodiment of the present application. It is understood that in addition to a mobile phone, the electronic device 1000 may also be other devices with a camera, such as a tablet computer, an e-book reader, an MP3 player, an MP4 player, a car computer, a desktop computer, a smart TV, or a wearable device, etc.

[0044] Specifically, the housing 10 can be made of metal or plastic. The housing cavity 101 of the housing 10 can be used to accommodate the image sensor 20, the stopper assembly 40, and the optical assembly 30. It is understandable that the housing 10 can be formed with a through hole 102, the through hole 102 is coaxial with the optical axis L1, and the optical assembly 30 can be inserted into the through hole 102 and move along the optical axis L1. Among them, the through hole 102 can also limit the displacement of the optical assembly 30 in the horizontal direction.

[0045] When the optical component 30 enters the working state, the optical component 30 can move along the direction of the optical axis L1 and away from the image sensor 20 to pop out of the housing 10. At this time, the optical component 30 is in the target position. In this case, the limit component 40 can simultaneously connect the housing 10 and the optical component 30 so that the deflection angle of the optical component 30 and / or the position of the optical component 30 can be adjusted.

[0046] At the same time, at different temperatures, the focal length of the optical component 30 will change, so that the imaging surface 33 of the optical component 30 will not fall on the image sensor 20 after being offset, resulting in blurred images. The limit component 40 can adjust its own size in the direction of the optical axis L1, so that the limit position determined by the limit component 40 will change, so that the position of the optical component 30 can be adjusted to adjust the position of the imaging surface 33, ensuring that the imaging surface 33 can fall on the image sensor 20 so that the optical component 30 has a better imaging effect. In addition, the limit component 40 can also adjust the angle of deflection of the optical component 30 relative to the optical axis L1, avoid the imaging surface 33 of the optical component 30 and the image sensor 20 from generating an inclination angle, and ensure that the imaging surface 33 can fall on the image sensor 20 so that the image is clearer.

[0047] See also Figure 1 and Figure 7 In some embodiments, the limit assembly 40 includes at least two limit structures 41, each of which includes a locking portion 411 and a driving component 412 that drives the locking portion 411 to move. When the optical component 30 is in the target position, at least two locking portions 411 connect the housing 10 and the optical component 30 in the direction of the optical axis L1, and the driving component 412 drives the locking portion 411 to move along the direction of the optical axis L1 to limit the distance between the optical component 30 and the image sensor 20.

[0048] In this way, when the optical component 30 is in the target position, the driving component 412 can drive the locking portion 411 to move along the direction of the optical axis L1 to adjust the distance between the optical component 30 and the image sensor 20, so that the imaging surface 33 of the optical component 30 falls in the image sensor 20, thereby ensuring the convergence effect of light so that the imaging effect of the optical component 30 is clearer.

[0049] Specifically, the stopper 411 can be made of metal material so that the stopper 411 can have better wear resistance and stability. All the stopper 411 have the same height, and all the stopper 411 can form a limit surface. When the optical component 30 is in the target position, the optical component 30 contacts all the stopper 411, so that all the stopper 411 can jointly limit the position that the optical component 30 can finally reach when it moves along the optical axis L1 and away from the image sensor 20. When the driving component 412 drives the stopper 411 to move along the optical axis L1, the distance and angle of the limit surface relative to the image sensor 20 can be changed, thereby driving the distance and angle of the optical component 30 relative to the image sensor 20 to change, so that the imaging surface 33 of the optical component 30 can fall in the image sensor 20, thereby ensuring a clearer imaging effect.

[0050] In one embodiment, the number of the stopper parts 411 is three, and the three stopper parts 411 are arranged on the housing 10 at intervals, the three stopper parts 411 are not collinear, and the three stopper parts 411 form a triangular shape. The three stopper parts 411 form a limited position surface. When the optical component 30 enters the working state, the optical component 30 can move along the optical axis L1 direction and away from the image sensor 20 to reach the target position. At this time, the three stopper parts 411 arranged on the housing 10 are all connected to the optical component 30, so as to limit the position that the optical component 30 can finally reach when moving along the optical axis L1 direction and away from the image sensor 20. At different temperatures, the limit position determined by the limit component 40 will change, so as to change the position of the imaging surface 33 of the optical component 30, so that the optical component 30 can have a better imaging effect.

[0051] See also Figure 1 as well as Figure 8-Figure 11 In some embodiments, the limiting component 40 is used to adjust its own size in the direction of the optical axis L1 according to the ambient temperature around the optical component 30.

[0052] In this way, under different temperature conditions, the limit assembly 40 adjusts its own size in the direction of the optical axis L1, and then adjusts the distance between the optical assembly 30 and the image sensor 20 to compensate for the changes in the imaging surface 33 of the optical assembly 30 caused by temperature changes, so that the imaging surface 33 falls on the image sensor 20 to ensure clearer imaging.

[0053] In one embodiment, when the ambient temperature increases the focal length of the optical component 30, the imaging surface 33 of the optical component 30 will fall below the image sensor 20, causing the imaging surface 33 to deviate from the imaging plane of the image sensor 20, so that the light cannot be well focused on the image sensor 20, causing the captured image to become blurred. Figure 8 The size of the driving component 412 can be controlled to increase so that the optical component 30 moves upward, so that the imaging surface 33 moves upward and falls on the image sensor 20, as shown in FIG. Fig. 9 As shown, the imaging effect can be made clearer.

[0054] In another embodiment, when the ambient temperature causes the focal length of the optical component 30 to decrease, the imaging surface 33 of the optical component 30 will fall above the image sensor 20, causing the imaging surface 33 to deviate from the imaging plane of the image sensor 20, so that the light cannot be well focused on the image sensor 20, causing the captured image to become blurred. Fig.10 The size of the driving component 412 can be controlled to decrease so that the optical component 30 moves upward, so that the imaging surface 33 moves downward and falls on the image sensor 20, as shown in FIG. Figure 1 As shown, the imaging effect can be made clearer.

[0055] In summary, the limiting component 40 of the embodiment of the present application can adjust its size in the direction of the optical axis L1 according to different ambient temperatures around the optical component 30, so that the imaging surface 33 falls on the image sensor 20 to ensure a clear imaging effect.

[0056] See also Figure 1 as well as Figure 12-14 In some embodiments, each driving component 412 can individually drive the corresponding locking portion 411 to move to change the posture of the optical component 30, thereby adjusting the angle between the optical axis L1 and the image sensor 20.

[0057] In this way, when the optical axis L1 is tilted, the driving component 412 and the locking portion 411 can be used to change the posture of the optical component 30 to adjust the angle between the optical axis L1 of the optical component 30 and the image sensor 20, so that the imaging surface 33 of the optical component 30 and the image sensor 20 are in the same plane, so that clear images can be obtained everywhere on the screen.

[0058] See also Fig.12 In the normal state of the camera module 100, the optical axis L1 of the optical component 30 falls in the normal direction of the image sensor 20, so that the light can be better converged on the imaging surface 33 of the optical component 30 and the plane where the image sensor 20 is located, and at this time, the image can be better imaged on the image sensor 20.

[0059] Specifically, in the actual production module, due to the existence of assembly tolerance and deformation, when the optical component 30 is in the working state, the optical axis L1 of the optical component 30 will be tilted, so that there is an angle between the imaging surface 33 of the optical component 30 and the image sensor 20. If the center of the picture is automatically focused, the edge of the picture will be out of focus and blurred. Each driving component 412 drives the corresponding stopper 411 to move, so that the limiting plane formed by the multiple stoppers 411 can be tilted to a certain extent, thereby compensating for the tilt of the optical axis L1, so that the optical axis L1 falls in the normal direction of the image sensor 20.

[0060] In one embodiment, due to the assembly tolerance of the camera module 100, the optical axis L1 of the optical component 30 is deflected, that is, there is an angle between the imaging surface 33 of the optical component 30 and the image sensor 20, such as Fig.13As shown, if the center of the picture is automatically focused at this time, the edge of the picture will be blurred due to defocus. Each driving component 412 drives the corresponding stopper 411 to move, so that the limiting plane formed by the multiple stoppers 411 is tilted to a certain extent, so as to drive the optical component 30 to tilt accordingly, so as to compensate for the tilt of the optical axis L1, so that the optical axis L1 falls in the normal direction of the image sensor 20, as shown in FIG. Fig.14 As shown, at this time, clear images can be obtained everywhere on the screen.

[0061] It can be understood that the limit assembly 40 is used to adjust the temperature compensation mechanism of its own size in the direction of the optical axis L1 according to the ambient temperature around the optical assembly 30. Each driving component 412 can individually drive the corresponding locking portion 411 to move to change the posture of the optical assembly 30, thereby adjusting the optical axis L1 tilt compensation mechanism for the angle between the optical axis L1 and the image sensor 20. The temperature compensation mechanism and the optical axis L1 tilt compensation mechanism can take effect at the same time, thereby ensuring the effectiveness of the camera module 100.

[0062] See also Figure 2 , Fig.15 and Fig.16 In some embodiments, the driving component 412 is fixed to the housing 10 and / or the optical assembly 30 .

[0063] In this way, when the optical component 30 moves to the target position along the direction of the optical axis L1 and away from the image sensor 20, the driving component 412 can connect the optical component 30 and the housing 10, and the driving component 412 and the locking portion 411 can control the deflection angle of the optical component 30 relative to the optical axis L1, so that the imaging surface 33 of the optical component 30 falls on the image sensor 20 to ensure that clear images can be obtained everywhere on the screen. At the same time, under different ambient temperatures, the limit component 40 can also adjust the distance between the optical component 30 and the image sensor 20 so that the imaging surface 33 falls on the image sensor 20 to improve the imaging clarity.

[0064] In one embodiment, the driving components 412 are all disposed on the housing 10. Figure 2 As shown, when the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20 , the driving component 412 may be connected to the optical assembly 30 .

[0065] In another embodiment, the driving components 412 are all disposed on the optical assembly 30, such as Fig.15 As shown, when the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20 , the driving component 412 may be connected to the housing 10 .

[0066] In one embodiment, part of the driving component 412 is disposed on the housing 10, and part of the driving component 412 is disposed on the optical component 30. Fig.16 As shown, when the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20 , the driving component 412 may be connected to the optical assembly 30 and the housing 10 .

[0067] See also Figure 1 , Figure 2 , Fig.15 and Fig.16 In some embodiments, the housing 10 includes an inner top surface 111 facing the image sensor 20 , the optical assembly 30 includes a lens barrel 31 and a lens 32 disposed in the lens barrel 31 , and the driving component 412 is disposed on the inner top surface 111 and / or the lens barrel 31 .

[0068] In this way, when the optical component 30 moves to the target position along the optical axis L1 and away from the image sensor 20, the driving component 412 arranged on the inner top surface 111 and / or the lens barrel 31 can connect the optical component 30 and the outer housing 10. The driving component 412 and the locking portion 411 can control the deflection angle of the optical component 30 relative to the optical axis L1, so that the imaging surface 33 of the optical component 30 falls on the image sensor 20 to ensure that clear images can be obtained everywhere on the screen. At the same time, under different ambient temperatures, the limit component 40 can also adjust the distance between the optical component 30 and the image sensor 20 so that the imaging surface 33 falls on the image sensor 20 to improve the imaging clarity.

[0069] Specifically, in some embodiments, a voice coil motor may be provided in the barrel 311, and the voice coil motor has autofocus and optical image stabilization functions, thereby ensuring that after the optical component 30 moves outside the housing 200 to work, the optical component 30 can have a better and more stable imaging effect.

[0070] In one embodiment, the driving components 412 are all disposed on the inner top surface 111 of the housing 10. Figure 1 and Figure 2 As shown, when the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20 , the driving component 412 may be connected to the lens barrel 31 .

[0071] In another embodiment, the driving components 412 are all disposed on the lens barrel 31, and the driving components 412 are spaced apart from the barrel 311. Fig.15 As shown, when the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20 , the driving component 412 may be connected to the inner top surface 111 .

[0072] In another embodiment, the driving component 412 is disposed on the inner top surface 111 of the housing 10, and the driving component 412 is also disposed on the lens barrel 31. Fig.16 As shown, when the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20 , the driving component 412 may be connected to the lens barrel 31 and the inner top surface 111 .

[0073] See also Figure 1 , Figure 2 , Fig.15 and Fig.16 In some embodiments, the lens barrel 31 includes a barrel body 311 and a flange 312 connected to the barrel body 311, and the driving component 412 is arranged on the inner top surface 111 and / or the flange 312. When the optical component 30 is in the target position, at least two locking portions 411 connect the flange 312 and the inner top surface 111 in the direction of the optical axis L1.

[0074] In this way, when the optical component 30 moves to the target position in the direction away from the image sensor 20, the driving component 412 arranged on the inner top surface 11141 and / or the flange 312 can connect the optical component 30 and the outer shell 10, and the driving component 412 and the locking portion 411 can control the deflection angle of the optical component 30 relative to the optical axis L1, so that the imaging surface 33 of the optical component 30 falls on the image sensor 20 to ensure that clear images can be obtained everywhere on the screen. At the same time, under different ambient temperatures, the limit component 40 can also adjust the distance between the optical component 30 and the image sensor 20 so that the imaging surface 33 falls on the image sensor 20 to improve the imaging clarity.

[0075] In one embodiment, the driving components 412 are all disposed on the inner top surface 111 of the housing 10. Figure 1 and Figure 2 As shown, when the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20 , the driving component 412 may be connected to the flange 312 .

[0076] In another embodiment, the driving components 412 are all disposed on the flange 312, and the driving components 412 are spaced apart from the cylinder 311, such as Fig.15 As shown, when the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20 , the driving component 412 may be connected to the inner top surface 111 .

[0077] In yet another embodiment, the driving component 412 is disposed on the inner top surface 111 of the housing 10, and the driving component 412 is also disposed on the flange 312. Fig.16As shown, when the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20 , the driving component 412 may be connected to the flange 312 and the inner top surface 111 .

[0078] See also Figure 1 In some embodiments, the driving component 412 includes an electromagnetic component 4121 and a permanent magnetic component 4122, one of the electromagnetic component 4121 and the permanent magnetic component 4122 is arranged between the housing 10 and the optical component 30, and the other is fixedly connected to the locking portion 411, and the electromagnetic component 4121 and the permanent magnetic component 4122 cooperate to drive the locking portion 411 to move along the direction of the optical axis L1.

[0079] In this way, under different ambient temperatures, the repulsive magnetic force generated between the electromagnetic component 4121 and the permanent magnetic component 4122 can be used to drive the locking portion 411 to move along the direction of the optical axis L1, thereby adjusting the distance between the optical component 30 and the image sensor 20 to ensure that the external light collected by the optical component 30 can be better converged on the image sensor 20, thereby making the imaging effect clear.

[0080] Specifically, the electromagnetic member 4121 can be used to receive the electronic signal input by the electronic device 1000 and generate electromagnetic force. The permanent magnet 4122 and the electromagnetic member 4121 can generate a repulsive magnetic force to change the position of the locking portion 411 when the locking portion 411 is connected to the optical component 30.

[0081] In one embodiment, the electromagnetic member 4121 is mounted on the inner top surface 111 of the housing 10, and the permanent magnet member 4122 is disposed on the stop portion 411 and spaced apart from the electromagnetic member 4121. The magnitude of the current flowing through the electromagnetic member 4121 is controlled by the application processor or the driver chip of the electronic device 1000, thereby changing the electromagnetic force generated by the electromagnetic pole 4121, so as to drive the permanent magnet member 4122 to drive the stop portion 411 and the optical assembly 30 to move along the direction of the optical axis L1.

[0082] When the ambient temperature increases the focal length of the optical component 30, the imaging surface 33 of the lens will fall below the image sensor 20, so that the light cannot be well focused on the image sensor 20, resulting in blurred captured images. Figure 8 At this time, the current flowing through the electromagnetic element 4121 can be increased to increase the repulsive force between the electromagnetic element 4121 and the permanent magnet element 4122, so that the permanent magnet element 4122 moves toward the back of the electromagnetic element 4121, thereby increasing the size of the driving component 412 to move the optical component 30 upward, so that the imaging surface 33 moves upward and falls on the image sensor 20, as shown in FIG. Fig. 9 As shown, the imaging effect can be clear.

[0083] When the ambient temperature causes the focal length of the optical component 30 to decrease, the imaging surface 33 of the lens will fall above the image sensor 20, so that the light cannot be well focused on the image sensor 20, causing the captured image to become blurred. Fig.10 At this time, the current flowing through the electromagnetic member 4121 can be reduced to increase the repulsive force between the electromagnetic member 4121 and the permanent magnet member 4122, so that the permanent magnet member 4122 moves toward the direction of the back electromagnetic member 4121, thereby increasing the size of the driving component 412 to move the optical component 30 downward, so that the imaging surface 33 moves downward and falls on the image sensor 20, as shown in FIG. Fig.11 As shown, the imaging effect can be clear.

[0084] When there is an assembly tolerance in the camera module 100, the optical axis L1 of the optical component 30 is deflected, that is, there is an angle between the imaging surface 33 of the optical component 30 and the image sensor 20, such as Fig.13 As shown, if the center of the picture is automatically focused, the edge of the picture will be blurred due to defocus. The application processor or driver chip of the electronic device 1000 controls the current passing through each electromagnetic member 4121, drives the corresponding stopper 411 to move, so that the limiting plane formed by the multiple stoppers 411 is tilted to a certain extent, so as to drive the optical component 30 to tilt accordingly, so that the optical axis L1 can fall in the normal direction of the image sensor 20, as shown in FIG. Fig.14 As shown, at this time, clear images can be obtained everywhere on the screen.

[0085] It can be understood that the temperature compensation mechanism that adjusts the distance between the electromagnetic component 4121 and the permanent magnet component 4122 in the direction of the optical axis L1 according to the ambient temperature around the optical component 30, and the optical axis L1 tilt compensation mechanism in which each driving component 412 can individually drive the corresponding locking portion 411 to move to change the posture of the optical component 30 can be superimposed at the same time, so that the temperature compensation mechanism and the optical axis L1 tilt compensation mechanism can take effect at the same time to ensure the effectiveness of the camera module 100.

[0086] In another embodiment, the permanent magnet 4122 is mounted on the inner top surface 111 of the housing 10, and the electromagnetic member 4121 is disposed on the stopper 411 and spaced apart from the permanent magnet 4122. The magnitude of the current flowing through the electromagnetic member 4121 is controlled by the application processor or driver chip of the electronic device 1000 to change the electromagnetic force generated by the electromagnetic pole 4121, thereby driving the electromagnet to drive the stopper 411 to move along the direction of the optical axis L1. At this time, by controlling the magnitude of the current flowing through the electromagnetic member 4121 to change the electromagnetic force generated by the electromagnetic pole 4121, the electromagnetic member 4121 is driven to drive the stopper 411 and the optical assembly 30 to move along the direction of the optical axis L1, so that the imaging surface 33 moves and can fall on the image sensor 20, thereby improving the clarity of the imaging effect.

[0087] In some embodiments, a mounting groove may be formed on the locking portion 411, and the electromagnetic component 4121 or the permanent magnetic component 4122 may be fixed in the mounting groove, thereby reducing the overall height of the driving component 412 to achieve miniaturization.

[0088] In some embodiments, the position limiting assembly 40 may further include a mounting member, which is disposed in the accommodating cavity 101 and may be connected to the housing 10 or the optical assembly 30. The electromagnetic member 4121, the permanent magnetic member 4122, and the stopper 411 are all clamped in the mounting member, thereby preventing the position limiting assembly 40 from falling off from the housing 10 or the optical assembly 30 when adjusting its own size in the direction of the optical axis L1.

[0089] In another embodiment, the mounting member is fixed on the inner top surface 111 of the housing 10, and the electromagnetic member 4121 is also fixed on the inner fixed surface and is clamped in the mounting member. The permanent magnetic member 4122 is arranged on the stopper 411 and is spaced apart from the electromagnetic member 4121, and the permanent magnetic member 4122 and the stopper 411 are both clamped in the mounting member. Figure 1 The application processor or driver chip of the electronic device 1000 controls the current flowing through the electromagnetic member 4121, thereby changing the electromagnetic force generated by the electromagnetic pole 4121 to drive the electromagnet to drive the stopper 411 and the optical component 30 to move along the direction of the optical axis L1.

[0090] See also Figure 1 , Figure 2 , Fig.17 and Fig.18 In some embodiments, the stopper 411 is in point contact or surface contact with the contacting surface. In this way, the stopper 411 can be connected to the optical component 30 or the housing 10 through point contact or surface contact.

[0091] In some embodiments, the stopper 411 may be prism-shaped, cylindrical-shaped, or spherical-shaped after cutting, and the plane of the stopper 411 is used to connect the inner top surface 111 and / or the flange 312 of the housing 10, so that the stopper 411 is in surface contact with the inner top surface 111 and the flange 312 and / or the flange 312. The stopper 411 that can achieve surface contact is easy to process and can also avoid limit displacement caused by wear.

[0092] In one embodiment, the stopper 411 is disposed on the inner top surface 111 of the housing 10. When the optical assembly 30 moves to a target position along the optical axis L1 and away from the image sensor 20, the stopper 411 and the flange 312 of the optical assembly 30 are in surface contact. Figure 1 and Figure 2 shown.

[0093] Of course, in some embodiments, the stopper 411 may also be spherical or hemispherical, so that the stopper 411 is in point contact with the inner top surface 111 of the housing 10 and / or the surface of the flange 312. The stopper 411 that achieves point contact does not need to consider the surface tolerance or flatness of the contact point of the stopper 411, and the stopper 411 that achieves point contact has a high assembly accuracy, which can provide high-quality imaging effects.

[0094] In another embodiment, the stopper 411 is disposed on the flange 312 of the housing 10. When the optical assembly 30 moves to the target position along the optical axis L1 and away from the image sensor 20, the contact between the boss and the inner top surface 111 is point-to-surface contact. Fig.17 shown.

[0095] In another embodiment, the stopper 411 is disposed on the inner top surface 111 and the flange 312. When the optical assembly 30 moves to the target position along the optical axis L1 and away from the image sensor 20, the contact between the stopper 411, the flange 312 and the inner top surface 111 is point contact and surface contact. Fig.18 shown.

[0096] See also Figure 1 and Figure 2 In some embodiments, the camera module 100 may further include a circuit board 50, the driving component 60 may include an elastic element 61, the image sensor 20 is disposed on the circuit board 50, the elastic element 61 connects the circuit board 50 and the optical component 30, and the elastic element 61 is used to provide a force to the optical component 30 to pop the optical component 30 out of the housing 10.

[0097] In this way, the elastic element 61 can be used to drive the optical component 30 to move along the optical axis L1 and in a direction away from the image sensor 20 , so that the optical component 30 is partially ejected into the housing 10 to reach a target position for operation.

[0098] Specifically, the image sensor 20 is disposed on and electrically connected to the circuit board 50. The circuit board 50 is provided with a control circuit. When the optical assembly 30 is in the working state, the circuit board 50 is powered on. The imaging surface 33 of the optical assembly 30 is in the same position as the image sensor 20. The image sensor 20 can convert the received optical signal into an electrical signal and output it to the electronic device 1000. When the elastic element 61 is compressed under the action of an external force, the optical assembly 30 retracts into the housing 10 to be in a non-working state; when the external force is removed so that the elastic element 61 is no longer compressed, the optical assembly 30 can protrude out of the housing 10 to be in a working state. In one embodiment, the elastic element 61 can be a spring.

[0099] In some embodiments, the camera module 100 may further include a constraint mechanism (not shown) connected to the optical assembly 30, and the constraint mechanism may move along the optical axis L1 relative to the image sensor 20. When the constraint mechanism moves along the optical axis L1 and in a direction close to the image sensor 20, the constraint mechanism may compress the elastic element 61 to retract the optical assembly 30 into the housing 10 to be in a non-working state, thereby reducing the height of the camera module 100 and achieving the purpose of miniaturization of the camera module 100.

[0100] It can be understood that when the constraint mechanism moves along the optical axis L1 and in a direction away from the image sensor 20, the elastic element 61 is no longer compressed, and the elastic force of the elastic element 61 in the process of restoring deformation can move the optical component 30 in a direction away from the image sensor 20, and finally stop under the limit of the limit component 40, so that the optical component 30 partially protrudes out of the housing 10 to be in a working state.

[0101] See also Figure 1 In some embodiments, the driving assembly 60 further includes a driving member 62, which is used to drive the optical assembly 30 to move along the optical axis L1 so that the optical assembly 30 is retracted into the housing 10. In this way, the driving member 62 can be used to control the optical assembly 30 to move along the optical axis L1 so that the optical assembly 30 is retracted into the housing 10, so as to reduce the overall height of the camera module 100 and achieve the purpose of miniaturization of the camera module 100.

[0102] Specifically, the driving member 62 is installed in the accommodating cavity 101 and can be connected to the lens barrel 31 of the optical assembly 30. The driving member 62 can drive the optical assembly 30 to move along the optical axis L1 and toward the image sensor 20 so that the optical assembly 30 is retracted into the housing 10.

[0103] In some embodiments, the driving member 62 can also be used to drive the optical assembly 30 to move in a direction away from the image sensor 20 along the optical axis L1 so that the optical assembly 30 protrudes into the housing 10. That is, under such conditions, the driving member 62 can be used to drive the optical assembly 30 to move along the optical axis L1 in a direction away from the image sensor 20 so that the optical assembly 30 protrudes out of the housing 10, and can also drive the optical assembly 30 to move along the optical axis L1 in a direction close to the image sensor 20 so that the optical assembly 30 retracts into the housing 10.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0105] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0107] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A camera module, characterized in that: include: A housing having a receiving cavity; An image sensor, wherein the image sensor is disposed in the accommodating cavity; an optical assembly movable relative to the image sensor along an optical axis of the optical assembly; A driving assembly, the driving assembly is connected to the optical assembly, and the driving assembly is used to drive the optical assembly to move along the optical axis; and a limit assembly, the limit assembly being arranged between the optical assembly and the housing, and being used to adjust its own dimension in the direction of the optical axis in order to adjust the deflection angle of the optical assembly and / or adjust the position of the optical assembly when the limit assembly is connected to the housing; The limiting assembly includes at least two limiting structures, each of which includes a locking portion and a driving component for driving the locking portion to move. When the optical assembly is at a target position, at least two of the locking portions connect the housing and the optical assembly in the direction of the optical axis, and the driving component drives the locking portions to move along the direction of the optical axis to limit the distance between the optical assembly and the image sensor. The number of the stop parts is three, the three stop parts are arranged on the housing at intervals, the three stop parts are not collinear, the three stop parts form a triangle shape, the three stop parts form a limited position surface, and the limited position surface is parallel to the imaging surface of the optical component; The driving component is fixed on the housing and / or the optical assembly, the housing includes an inner top surface facing the image sensor, the optical assembly includes a lens barrel and a lens arranged in the lens barrel, and the driving component is arranged on the inner top surface and / or the lens barrel; The lens barrel includes a barrel body and a flange connected to the barrel body, the driving component is arranged on the inner top surface and / or the flange, and when the optical component is in the target position, the at least two locking parts connect the flange and the inner top surface in the direction of the optical axis.

2. The camera module according to claim 1, characterized in that: Each of the driving components can independently drive the corresponding locking portion to move to change the posture of the optical component, thereby adjusting the angle between the optical axis and the image sensor.

3. The camera module according to claim 1, characterized in that: The driving component includes an electromagnetic component and a permanent magnetic component, one of which is arranged between the housing and the optical component, and the other is fixedly connected to the locking portion, and the electromagnetic component and the permanent magnetic component cooperate to drive the locking portion to move along the direction of the optical axis.

4. The camera module according to claim 1, characterized in that: The locking portion is in point contact or surface contact with the contacting surface.

5. The camera module according to claim 1, characterized in that: The camera module includes a circuit board, the driving component includes an elastic element, the image sensor is arranged on the circuit board, the elastic element connects the circuit board and the optical component, and the elastic element is used to provide the optical component with a force to pop the optical component out of the housing.

6. The camera module according to claim 5, characterized in that: The driving assembly further includes a driving member, which is used to drive the optical assembly to move along the optical axis so as to retract the optical assembly into the housing.

7. The camera module according to claim 1, characterized in that: The limiting component is used to adjust its own size in the direction of the optical axis according to the ambient temperature around the optical component.

8. An electronic device, characterized in that: include: chassis; and The camera module described in any one of claims 1-7 is movably arranged on the casing, and the camera module can be extended out of the casing or retracted into the casing.

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