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 first driving mechanism, a second driving mechanism and a limiting structure. 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 first driving mechanism is used to drive the optical component to move along the optical axis. The second driving mechanism is used to drive the optical component to move in a direction away from the image sensor. The limiting structure is arranged between the optical component and the housing, and when the second driving mechanism is used to drive the optical component to move so that the limiting structure connects the optical component and the housing, the limiting structure limits the angle of deflection of the optical component relative to the optical axis. The second driving mechanism drives the optical component to move so that the limiting structure connects the optical component and the housing, which can control the angle of deflection of the optical component relative to the optical axis to ensure the clarity of imaging of the camera module, and can also ensure the miniaturization of the camera module.

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 the camera module in the electronic product, some existing products or solutions have a telescopic mechanism for realizing the pop-up and retracting function, thereby saving the internal space of the electronic product. In the related art, after the lens of the camera module is driven to move, the imaging surface of the lens is prone to deflection, resulting in low imaging quality of the lens. 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 first driving mechanism, a second driving mechanism and a limiting structure. 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 first driving mechanism is used to drive the optical component to move along the optical axis. The second driving mechanism is used to drive the optical component to move in a direction away from the image sensor. The limiting structure is arranged between the optical component and the housing, and when the second driving mechanism is used to drive the optical component to move so that the limiting structure connects the optical component and the housing, the limiting structure limits the angle of deflection of the optical component relative to the optical axis.

[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, by driving the optical component to move away from the image sensor through the second driving mechanism so that the limiting structure connects the optical component and the housing, the deflection angle of the optical component relative to the optical axis can be controlled, thereby ensuring the clarity of the imaging of the camera module while also ensuring the miniaturization of the camera module.

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

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

[0011] Figure 3 It is another structural schematic diagram of the camera module according to the implementation mode of the present application;

[0012] Figure 4 is a schematic diagram of a partial structure 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 a schematic structural diagram of an electronic device in another state according to an embodiment of the present application;

[0015] Figure 7 is a cross-sectional schematic diagram of a camera module according to an embodiment of the present application in one embodiment;

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

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

[0018] Fig.10 is a cross-sectional schematic diagram of a camera module according to an embodiment of the present application when it is at a predetermined position in one embodiment;

[0019] Fig.11 is a schematic top view of an optical component and a protrusion according to an embodiment of the present application;

[0020] Fig.12 is a cross-sectional schematic diagram of a camera module according to an embodiment of the present application when it is at a predetermined position in another embodiment;

[0021] Fig.13 is a cross-sectional schematic diagram of a camera module according to an embodiment of the present application when it is at a predetermined position in another embodiment;

[0022] Fig.14 is a 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 yet another embodiment;

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

[0025] Fig.17is a schematic diagram of an exploded view of a partial structure of a camera module according to an embodiment of the present application in another embodiment;

[0026] Fig.18 is a schematic diagram of the movement of the optical component under the first driving mechanism according to an embodiment of the present application;

[0027] Fig.19 It is a simplified schematic diagram of the movement of the optical component of the embodiment of the present application under the first driving mechanism and the second driving mechanism.

[0028] Explanation of the main component symbols: electronic device 1000, housing 200, camera module 100, image sensor 10, optical component 20, lens barrel 21, barrel body 211, flange 212, lens 22, first driving mechanism 30, outer shell 40, inner top surface 41, limiting structure 50, protrusion 51, second driving mechanism 60, electromagnetic component 61. 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 an image sensor 10, an optical component 20, a first driving mechanism 30, a housing 40, a limiting structure 50 and a second driving mechanism 60. The housing 40 has a receiving cavity 401. The image sensor 10 is arranged in the receiving cavity 401. The optical component 20 can move along the optical axis L1 of the optical component 20 relative to the image sensor 10. The first driving mechanism 30 is used to drive the optical component 20 to move along the optical axis L1. The second driving mechanism 60 is used to drive the optical component 20 to move in a direction away from the image sensor 10. The limiting structure 50 is arranged between the optical component 20 and the housing 40. When the second driving mechanism 60 is used to drive the optical component 20 to move so that the limiting structure 50 connects the optical component 20 and the housing 40, the limiting structure 50 limits the angle of deflection of the optical component 20 relative to the optical axis L1.

[0035] For the camera module in the electronic product, some existing products or solutions have a telescopic mechanism for realizing the pop-up and retracting function, thereby saving the internal space of the electronic product. In the related art, after the lens of the camera module is driven to move, the imaging surface of the lens is prone to deflection, resulting in low imaging quality of the lens.

[0036] In some technologies, the protrusion of the lens carrier cooperates with the spiral guide structure to move the lens along the axial direction of the through hole. The spiral guide mechanism itself has good guiding properties, which can control the tilt angle of the image plane and ensure the clarity of the full-frame imaging. At present, the camera modules of electronic products all have optical image stabilization (OIS) and auto focus (AF) function modules. The shape of the lens component that integrates OIS and AF functions is usually no longer cylindrical but a square shell. If a spiral guide mechanism is used, the circumscribed circle of the existing square shell of the movable component must be matched as the size boundary, thereby increasing the volume. For optical image stabilization camera modules, the spiral guide mechanism will bring the disadvantage of excessive size and volume of the camera module.

[0037] In the embodiment of the present application, the optical component 20 is driven by the second driving mechanism 60 to move in a direction away from the image sensor 10 so that the limiting structure 50 connects the optical component 20 and the housing 40. The second driving mechanism 60 and the limiting structure 50 cooperate to control the deflection angle of the optical component 20 relative to the optical axis L1, thereby ensuring the clarity of the imaging of the camera module 100, avoiding excessive inclination angle of the optical component 20 relative to the plane where the image sensor 10 is located, and at the same time ensuring the miniaturization of the camera module 100.

[0038] 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.

[0039] 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 20 with a larger total optical length, so that the optical component 20 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 electronic device 1000 can be made thinner and lighter.

[0040] 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.

[0041] In some embodiments, the camera module 100 may further include a circuit board, and the image sensor 10 is disposed on the circuit board and electrically connected to the circuit board. A control circuit is arranged on the circuit board, and when the optical component 20 is in a working state, the circuit board is powered on, and the imaging surface of the optical component 20 is in the same position as the image sensor 10, and the image sensor 10 can convert the received optical signal into an electrical signal and output it to the electronic device 1000.

[0042] Specifically, the optical component 20 may include a lens, which may be used to collect external light signals and form an image on the imaging surface of the optical component 20. In some embodiments, the optical component 20 may also include a filter, which is disposed above the image sensor 10. The filter may be used to filter light of a certain wavelength band, so that the imaging effect of the optical component 20 is clearer.

[0043] The first driving mechanism 30 is used to drive the optical component 20 to move along the optical axis L1. When the electronic device 1000 starts the shooting function, the first driving mechanism 30 drives the optical component 20 to move in a direction away from the image sensor 10, so that the optical component 20 extends out of the housing 200; when the electronic device 1000 turns off the shooting function, the first driving mechanism 30 drives the optical component 20 to move in a direction close to the image sensor 10, so that the optical component 20 can be retracted into the housing 200, so as to achieve a thin and light electronic device 1000.

[0044] In some embodiments, the first driving mechanism 30 may include a power source and a transmission assembly connected to the power source, the transmission assembly is connected to the optical assembly 20, and the stepping power source may be used to drive the transmission assembly to drive the optical assembly 20 to move along the optical axis L1, thereby realizing the ejection and retraction of the optical assembly 20. The power source 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.

[0045] In one embodiment, the first driving mechanism 30 may include a stepper motor and a gearbox connected to the stepper motor. The gearbox is connected to the optical assembly 20, and the stepper motor can be used to drive the gearbox to drive the optical assembly 20 to move along the optical axis L1, thereby realizing the ejection and retraction of the optical assembly 20.

[0046] In another embodiment, the first driving mechanism 30 may include an elastic member, and the elastic member may be compressed or released to cause the optical component 20 to move along the optical axis L1 , so as to realize the ejection and retraction of the optical component 20 relative to the housing 200 .

[0047] In some embodiments, the first driving mechanism 30 may have autofocus and optical image stabilization functions, thereby ensuring that after the optical assembly 20 moves outside the housing 200 , the optical assembly 20 can have a better and more stable imaging effect.

[0048] Furthermore, the housing 40 can be made of metal or plastic. The housing cavity 401 of the housing 40 can be used to accommodate the image sensor 10, the optical component 20, the first driving mechanism 30, the limiting structure 50 and the second driving mechanism 60. It can be understood that a through hole is formed on the housing 40, and the through hole is coaxial with the optical axis L1. The first driving mechanism 30 can drive the optical component 20 to pass through the through hole so that the optical component 20 moves along the direction of the optical axis L1.

[0049] When the electronic device 1000 activates the shooting function, the first driving mechanism 30 drives the optical component 20 to move in a direction away from the image sensor 10 so that the optical component 20 extends out of the housing 200. After the optical component 20 is ejected, the imaging surface of the optical component 20 has a large inclination angle with the plane where the image sensor 10 is located. Then, the second driving mechanism 60 drives the optical component 20 to move in a direction away from the image sensor 10 so that the limiting structure 50 connects the optical component 20 and the housing 40. The limiting structure 50 can limit the angle of deflection of the optical component 20 relative to the optical axis L1, reduce the inclination angle between the imaging surface of the optical component 20 and the plane where the image sensor 10 is located, and thus improve the imaging effect of the optical component 20.

[0050] In some technologies, a linear pin-groove assembly guiding mechanism is used to control the tilt angle of the image plane and ensure the clarity of the full-frame imaging. However, the linear pin-groove assembly guiding mechanism is not sufficient to control the tilt, because a good guiding mechanism itself and the smoothness of the ejection and retraction are two contradictory points. A better guiding mechanism means that the movable freedom of the ejection part is low and it is more likely to get stuck during movement. On the contrary, by relaxing the degree of coordination between the guiding mechanisms, the movement can be smoother, but it will affect the tilt of the ejection part. In order to solve this problem, a permanent magnet can be added to the side wall to achieve positioning through magnetic force. However, during the lens retraction process, the permanent magnet will inevitably lead to an increase in the resistance to retraction, which increases the difficulty of retraction.

[0051] In the camera module 100 and the electronic device 1000 of the embodiment of the present application, when the shooting function of the electronic device 1000 is turned off, the first driving mechanism 30 can directly drive the optical assembly 20 to move in a direction close to the image sensor 10 so that the optical assembly 20 is retracted outside the housing 200. In this process, the second driving mechanism 60 and the limiting structure 50 do not interfere with the first driving mechanism 30, thereby ensuring that the process of retracting the optical assembly 20 into the housing 200 is smooth, and avoiding the optical assembly 20 from being subjected to resistance in the process of retracting into the housing 200.

[0052] In some embodiments, the imaging surface of the optical component 20 has an inclination angle less than 15' relative to the image sensor 10. In this way, the imaging surface of the optical component 20 is ensured to have an inclination angle less than 15' relative to the image sensor 10, so that the imaging effect of the optical component 20 is better.

[0053] When the first driving mechanism 30 drives the optical assembly 20 to move along the optical axis L1 and in a direction away from the mobile image sensor 10, and the second driving mechanism 60 drives the optical assembly 20 to move in a direction away from the image sensor 10 so that the limiting structure 50 connects the optical assembly 20 and the housing 40, due to the installation error of the limiting structure 50, the imaging surface of the optical assembly 20 will have an inclination angle with the plane where the image sensor 10 is located. By controlling the inclination angle of the imaging surface of the optical assembly 20 relative to the image sensor 10 to be less than 15', the optical assembly 20 can still have a good imaging effect, and the imaging effect is clearer.

[0054] It is understandable that when the inclination angle of the imaging surface of the optical component 20 relative to the image sensor 10 is equal to 0′, that is, when the imaging surface of the optical component 20 coincides with the plane where the image sensor 10 is located, the imaging effect of the optical component 20 is better.

[0055] See also Figure 7-Figure 9 In some embodiments, the limiting structure 50 is fixed on the housing 40 and / or the optical component 20. In this way, when the optical component 20 moves away from the image sensor 10 and the optical component 20 and the housing 40 are connected by the limiting structure 50, as shown in FIG. Fig.10 As shown, the limiting structure 50 limits the deflection angle of the optical component 20 relative to the optical axis L1 to ensure that the inclination angle of the imaging surface of the optical component 20 relative to the image sensor 10 is less than 15′.

[0056] In some embodiments, the limiting structure 50 can be fixed on the optical component 20, such as Figure 7 As shown, the number of the limiting structures 50 can be one or more.

[0057] In some embodiments, the limiting structure 50 is fixed to the housing 40, such as Figure 8 As shown, the number of the limiting structures 50 can be one or more.

[0058] In some embodiments, the number of the limiting structures 50 may be multiple, at least one limiting structure 50 is disposed on the housing 40, and at least one limiting structure 50 is disposed on the optical component 20, such as Fig. 9 shown.

[0059] See also Figure 1 as well as Figure 7-Figure 9In some embodiments, the housing 40 includes an inner top surface 41 facing the image sensor 10 , the optical assembly 20 includes a lens barrel 21 and a lens 22 disposed in the lens barrel 21 , and the limiting structure 50 is disposed on the inner top surface 41 and / or the lens barrel 21 .

[0060] Thus, when the optical assembly 20 moves in a direction away from the image sensor 10, the limiting structure 50 disposed on the inner top surface 41 and / or the lens barrel 21 can connect the optical assembly 20 and the housing 40, such as Fig.10 As shown, the limiting structure 50 is able to limit the deflection angle of the optical component 20 relative to the optical axis L1, thereby improving the imaging effect of the optical component 20.

[0061] The lens 22 may be used to collect external light signals and form an image on the imaging surface of the optical component 20 .

[0062] In some embodiments, the limiting structure 50 can be fixed on the lens barrel 21, such as Figure 7 As shown, the number of the limiting structures 50 can be one or more.

[0063] In some embodiments, the limiting structure 50 is fixed on the inner top surface 41, such as Figure 8 As shown, the number of the limiting structures 50 can be one or more.

[0064] In some embodiments, the number of the limiting structures 50 may be multiple, at least one limiting structure 50 is disposed on the inner top surface 41, and at least one limiting structure 50 is disposed on the lens barrel 21. Fig. 9 shown.

[0065] See also Figure 7-Figure 9 In some embodiments, the lens barrel 21 includes a barrel body 211 and a flange 212 connected to the barrel body 211 , and the limiting structure 50 is disposed on the inner top surface 41 and / or the flange 212 .

[0066] In this way, when the optical component 20 moves away from the image sensor 10, the limiting structure 50 disposed on the inner top surface 41 and / or the flange 212 can connect the optical component 20 and the housing 40, such as Fig.10 As shown, the limiting structure 50 is able to limit the deflection angle of the optical component 20 relative to the optical axis L1, thereby improving the imaging effect of the optical component 20.

[0067] In some embodiments, the limiting structure 50 can be fixed on the flange 212, such as Figure 7 As shown, the number of the limiting structures 50 can be one or more.

[0068] In some embodiments, the limiting structure 50 is fixed on the inner top surface 41, such as Figure 8As shown, the number of the limiting structures 50 can be one or more.

[0069] In some embodiments, the number of the limiting structures 50 may be multiple, at least one limiting structure 50 is disposed on the inner top surface 41, and at least one limiting structure 50 is disposed on the flange 212, such as Fig. 9 shown.

[0070] See also Fig.10 and Fig.11 In some embodiments, the limiting structure 50 includes at least three protrusions 51, and the at least three protrusions 51 are not collinear. When the optical component 20 is in a predetermined position, the at least three protrusions 51 connect the flange 212 and the inner top surface 41.

[0071] In this way, the optical component 20 and the housing 40 are connected by at least three protrusions 51, thereby determining the positional relationship between the optical component 20 and the housing 40 to limit the angle of deflection of the optical component 20 relative to the optical axis L1. At the same time, the protrusions 51 can also limit the degree of freedom of the optical component 20 to prevent the optical component 20 from moving after it is located at a predetermined position. The protrusions 51 can limit the translation of the optical component 20 along the optical axis L1, and limit the rotation of the optical component 20 in a plane perpendicular to the optical axis L1. At least three non-colinear protrusions 51 can fix the optical component 20 with high precision to provide a higher quality imaging effect.

[0072] Specifically, the protrusion 51 can be made of metal material so that the protrusion 51 can have better wear resistance and stability. When the flange 212 and the inner top surface 41 are both planes, the heights of all protrusions 51 are the same. When the optical component 20 is in a predetermined position, all protrusions 51 are arranged in a continuous plane. When the second driving mechanism 60 drives the optical component 20 to move to a predetermined position in a direction away from the image sensor 10, all protrusions 51 connect the optical component 20 and the housing 40. All protrusions 51 located on the same plane can limit the angle of deflection of the optical component 20 relative to the optical axis L1, that is, the protrusion 51 can limit the deflection of the optical component 20 perpendicular to the optical axis L1, so that the imaging surface of the optical component 20 coincides with the plane where the image sensor 10 is located to ensure that the optical component 20 has a better imaging effect.

[0073] See also Fig.10In one embodiment, the number of the protrusions 51 is three, and the three protrusions 51 are arranged at intervals on the inner top surface 41 of the housing 40, and the three protrusions 51 can form a triangle. When the optical assembly 20 is in a working state, the first driving mechanism 30 can drive the optical assembly 20 to move along the optical axis L1 and in a direction away from the mobile image sensor 10, and the second driving mechanism 60 drives the optical assembly 20 to move in a direction away from the image sensor 10 to a predetermined position so that the three protrusions 51 on the inner top surface 41 are connected to the flange 212. The connection between the three protrusions 51 on the inner top surface 41 and the flange 212 can limit the angle of deflection of the optical assembly 20 relative to the optical axis L1, ensuring that the imaging surface of the optical assembly 20 coincides with the plane where the image sensor 10 is located, so that the optical assembly 20 can have a better imaging effect.

[0074] See also Fig.10 and Fig.12 In some embodiments, the protrusion 51 is in point contact or surface contact with the contacting surface. Thus, the protrusion 51 can be connected with the flange 212 and the inner top surface 41 by point contact or surface contact.

[0075] In some embodiments, the protrusion 51 may be spherical or hemispherical, so that the protrusion 51 is in point contact with the surface of the inner top surface 41 and / or the flange 212. The protrusion 51 that achieves point contact with the inner top surface 41 and / or the flange 212 does not need to consider the surface tolerance or flatness of the contact point of the protrusion 51, and the protrusion 51 that achieves point contact with the inner top surface 41 and / or the flange 212 has a high assembly accuracy, which can fix the optical component 20 at a predetermined position and enable the optical component 20 to provide high-quality imaging effects.

[0076] The protrusion 51 may also be prism-shaped or cylindrical-shaped, and two parallel planes on the protrusion 51 of prism or cylindrical structure are used to connect the inner top surface 41 and the flange 212, so that the protrusion 51 is in surface contact with the inner top surface 41 and the flange 212. The protrusion 51 in surface contact with the inner top surface 41 and the flange 212 is easy to process.

[0077] See also Fig.14 In some embodiments, the second driving mechanism 60 includes an electromagnetic component 61, which is aligned with one of the protrusions 51 along the direction of the optical axis L1. One of the electromagnetic component 61 and the corresponding protrusion 51 is set on the flange 212, and the other is set on the inner top surface 41. The electromagnetic component 61 and the corresponding protrusion 51 cooperate to drive the optical component 20 to move to a predetermined position in a direction away from the image sensor 10.

[0078] In this way, the electromagnetic component 61 can not only drive the optical component 20 to move in a direction away from the image sensor 10, but also cooperate with the protrusion 51 to connect the optical component 20 and the housing 40, thereby determining the positional relationship between the optical component 20 and the housing 40 to limit the deflection angle of the optical component 20 relative to the optical axis L1. The electromagnetic component 61 and the protrusion 51 can also limit the degree of freedom of the optical component 20 to ensure that the optical component 20 can provide high-quality imaging effects.

[0079] Specifically, the electromagnetic component 61 may be a micro electromagnet, and a control chip is disposed in the electromagnetic component 61, and the control chip may be used to control the opening and closing of the magnetism of the electromagnetic component 61. The protrusion 51 corresponding to the electromagnetic component 61 may be made of a yoke material, and the protrusion 51 may be used to control the control chip of the electromagnetic component 61. The electromagnetic component 61 may be disposed on the flange 212 or the inner top surface 41, and the protrusion 51 corresponding to the electromagnetic component 61 may be disposed on the inner top surface 41 or the flange 212.

[0080] The specific process of the electromagnetic assembly 61 and the corresponding protrusion 51 cooperating to drive the optical assembly 20 to move to a predetermined position in a direction away from the image sensor 10 is as follows: when the electronic device 1000 starts the shooting function, the first driving mechanism 30 drives the optical assembly 20 to move along the optical axis L1 and in a direction away from the mobile image sensor 10, so that the optical assembly 20 partially extends out of the housing 200 of the electronic device 1000. After the optical assembly 20 pops out, the electronic device 1000 can send a signal instruction to the control chip of the electromagnetic assembly 61 through the internal I2C bus or GPIO pin, etc., so that the electromagnetic assembly 61 generates magnetic force through the control chip to attract the protrusion 51 corresponding to the electromagnetic assembly 61, so that the optical assembly 20 moves to a predetermined position in a direction away from the image sensor 10 so that the protrusion 51 connects the optical assembly 20 and the housing 40, and then the protrusion 51 is fully effective. At this time, the imaging surface of the optical assembly 20 is tilted at an angle of less than 15' relative to the image sensor 10, ensuring that the imaging effect of the optical assembly 20 is better.

[0081] When the control chip of the electromagnetic component 61 receives the instruction to retract into the housing 200 from the electronic device 1000, the control chip controls the electromagnetic component 61 to be powered off, and the electromagnetic component 61 loses its magnetism. The optical component 20 can move toward the direction close to the image sensor 10 under the driving action of the first driving mechanism 30, so as to be retracted into the housing 200. It can be understood that when the electromagnetic component 61 loses its magnetism, the magnetic force of the electromagnetic component 61 can be prevented from increasing the resistance of the optical component 20 when it moves toward the direction close to the image sensor 10 to be retracted, thereby ensuring that the process of retracting the optical component 20 into the housing 200 is smooth.

[0082] In some embodiments, the electromagnetic assembly 61 may be disposed on the flange 212, and the protrusion 51 corresponding to the electromagnetic assembly 61 may be disposed on the inner top surface 41. In some embodiments, the electromagnetic assembly 61 may be disposed on the inner top surface 41, and the protrusion 51 corresponding to the electromagnetic assembly 61 may be disposed on the flange 212. It should be noted that the electromagnetic assembly 61 may be accommodated on the flange 212 or the inner top surface 41, thereby reducing the overall size of the camera module 100.

[0083] In some embodiments, there are two electromagnetic components 61, one of which is disposed on the inner top surface 41 and the other is disposed on the flange 212, and the two electromagnetic components 61 are aligned along the direction of the optical axis L1. In this way, the optical component 20 can be driven by the magnetic force of the two electromagnetic components 61 to move to a predetermined position in a direction away from the image sensor 10.

[0084] In one embodiment, one of the two electromagnetic assemblies 61 is a cylindrical structure and the other is a disc-shaped structure. A mounting hole is formed on the flange 212, and the disc-shaped electromagnetic assembly 61 is arranged in the mounting hole. The height of the disc-shaped electromagnetic assembly 61 is the same as the height of the flange 212. The cylindrical electromagnetic assembly 61 can be arranged on the inner top surface 41. Three protrusions 51 arranged at intervals are arranged on the flange 212, and the three protrusions 51 are not colinear. The protrusions 51 and the electromagnetic assembly 61 on the flange 212 are arranged at intervals. It should be noted that the electromagnetic assembly 61 on the flange 212 and the protrusion 51 have the same height, so that the electromagnetic assembly 61 on the flange 212 and the protrusion 51 are arranged in a continuous plane.

[0085] When the electronic device 1000 starts the shooting function, the first driving mechanism 30 drives the optical component 20 to move along the optical axis L1 and in a direction away from the mobile image sensor 10, so that the optical component 20 partially extends out of the housing 200 of the electronic device 1000. When the optical component 20 pops out, the electronic device 1000 can send a signal instruction to the control chip of the electromagnetic component 61 through the internal I2C bus or GPIO pin, etc., and the electromagnetic component 61 generates magnetic force through the control chip. The two electromagnetic components 61 attract each other, so that the optical component 20 moves to a predetermined position away from the image sensor 10 so that the protrusion 51 connects the optical component 20 and the housing 40, and then the protrusion 51 is fully effective. At this time, the imaging surface of the optical component 20 is tilted at an angle of less than 15' relative to the image sensor 10, ensuring that the imaging effect of the optical component 20 is better.

[0086] See also Figure 1 , Figure 14-16The second driving mechanism 60 includes an electromagnetic component 61, which can be set on the flange 212 and / or the inner top surface 41. When the electromagnetic component 61 is set on the flange 212, the electromagnetic component 61 adsorbs the outer shell 40 to move the optical component 20 to a predetermined position in a direction away from the image sensor 10; when the electromagnetic component 61 is set on the inner top surface 41, the electromagnetic component 61 adsorbs the lens barrel 21 to move the optical component 20 to a predetermined position in a direction away from the image sensor 10.

[0087] In this way, when the electronic device 1000 activates the shooting function, after the first driving mechanism 30 drives the optical component 20 to move along the optical axis L1 and away from the mobile image sensor 10, the electromagnetic component 61 on the flange 212 and / or the inner top surface 41 can drive the optical component 20 to move to a predetermined position in a direction away from the image sensor 10.

[0088] In some embodiments, there is one electromagnetic component 61, which is disposed on the flange 212. The electromagnetic component 61 adsorbs the metal shell 40 to move the optical component 20 to a predetermined position away from the image sensor 10, so that the protrusion 51 connects the optical component 20 and the shell 40, thereby making the limiting effect of the protrusion 51 fully effective, thereby ensuring that the imaging surface of the optical component 20 is tilted at an angle less than 15′ relative to the image sensor 10, thereby ensuring that the imaging effect of the optical component 20 is better.

[0089] In some embodiments, there is one electromagnetic component 61, which is disposed on the inner top surface 41. The electromagnetic component 61 adsorbs the flange 212 of the metal material to move the optical component 20 to a predetermined position away from the image sensor 10, so that the protrusion 51 connects the optical component 20 and the outer shell 40, thereby making the limiting effect of the protrusion 51 fully effective, thereby ensuring that the imaging surface of the optical component 20 is tilted at an angle less than 15′ relative to the image sensor 10, thereby ensuring that the imaging effect of the optical component 20 is better.

[0090] In some embodiments, there may be two electromagnetic components 61, one of which is disposed on the flange 212, and the other is disposed on the inner top surface 41. When the first driving mechanism 30 drives the optical component 20 to move in a direction away from the image sensor 10, the two electromagnetic components 61 are energized to have magnetism and attract each other. Since the housing 40 remains stationary relative to the image sensor 10, the electromagnetic component 61 on the flange 212 adsorbs the electromagnetic component 61 on the inner top surface 41, so that the optical component 20 moves to a predetermined position in a direction away from the image sensor 10, so that the protrusion 51 connects the optical component 20 and the housing 40, and the limiting function of the protrusion 51 is fully effective, so as to ensure that the imaging surface of the optical component 20 is tilted at an angle of less than 15' relative to the image sensor 10, and ensure that the imaging effect of the optical component 20 is better.

[0091] There may be multiple groups of electromagnetic components 61, each group of which has two electromagnetic components 61. One electromagnetic component 61 of each group of electromagnetic components 61 is disposed on the flange 212, and another electromagnetic component 61 is disposed on the inner top surface 41. Multiple groups of electromagnetic components 61 can better drive the optical component 20 to move in a direction away from the image sensor 10.

[0092] See also Fig.14 and Fig.16 In some embodiments, when the electromagnetic component 61 is set on the flange 212, the distance S1 between the electromagnetic component 61 and the inner top surface 41 is greater than the distance S2 between the protrusion 51 and the surface toward which the protrusion 51 protrudes; when the electromagnetic component 61 is set on the inner top surface 41, the distance between the electromagnetic component 61 and the flange 212 is greater than the distance between the protrusion 51 and the surface toward which the protrusion 51 protrudes.

[0093] In this way, it can be ensured that when the electromagnetic component 61 drives the optical component 20 to move to a predetermined position in a direction away from the image sensor 10, the protrusion 51 can connect the optical component 20 and the housing 40. Therefore, it is ensured that the protrusion 51 limits the angle of deflection of the optical component 20 relative to the optical axis L1, and avoids the electromagnetic component 61 connecting the optical component 20 and the housing 40, which causes the limiting structure 50 to be unable to connect the optical component 20 and the housing 40.

[0094] It can be understood that when the protrusion 51 is disposed on the flange 212 , the surface toward which the protrusion 51 protrudes is the inner top surface 41 ; when the protrusion 51 is disposed on the inner top surface 41 , the surface toward which the protrusion 51 protrudes is the flange 212 .

[0095] In one embodiment, when the electromagnetic assembly 61 and the protrusion 51 are both disposed on the flange 212, the distance S1 between the electromagnetic assembly 61 and the inner top surface 41 is greater than the distance S2 between the protrusion 51 and the inner top surface 41. When the electromagnetic assembly 61 drives the optical assembly 20 to a predetermined position, the protrusion 51 on the flange 212 cooperates with the flange 212 to achieve the connection between the optical assembly 20 and the housing 40.

[0096] In another embodiment, when the electromagnetic assembly 61 is disposed on the flange 212 and the protrusion 51 is disposed on the inner top surface 41, the distance S1 between the electromagnetic assembly 61 and the inner top surface 41 is greater than the distance S2 between the protrusion 51 and the flange 212. Fig.14 When the electromagnetic assembly 61 drives the optical assembly 20 to a predetermined position, the protrusion 51 on the inner top surface 41 cooperates with the flange 212 to achieve the connection between the optical assembly 20 and the housing 40 .

[0097] In another embodiment, when the electromagnetic assembly 61 and the protrusion 51 are disposed on the inner top surface 41, the distance S1 between the electromagnetic assembly 61 and the flange 212 is greater than the distance S2 between the protrusion 51 and the flange 212. Fig.15 When the electromagnetic assembly 61 drives the optical assembly 20 to a predetermined position, the protrusion 51 on the inner top surface 41 cooperates with the flange 212 to achieve the connection between the optical assembly 20 and the housing 40 .

[0098] In another embodiment, when the electromagnetic assembly 61 is disposed on the inner top surface 41, the protrusion 51 is disposed on the flange 212, and the distance between the electromagnetic assembly 61 and the flange 212 is greater than the distance between the protrusion 51 and the inner top surface 41. When the electromagnetic assembly 61 drives the optical assembly 20 to a predetermined position, the protrusion 51 on the flange 212 cooperates with the flange 212 to achieve the connection between the optical assembly 20 and the housing 40.

[0099] See also Fig.17 In some embodiments, the electromagnetic assembly 61 is an annular structure surrounding the optical axis L1. In this way, the electromagnetic assembly 61 of the annular structure can be set on the flange 212 of the lens barrel 21. When the optical assembly 20 is in a working state, the electromagnetic assembly 61 can better drive the entire optical assembly 20 to move toward the direction close to the inner top surface 41 of the housing 40, so that the limiting structure 50 connects the optical assembly 20 and the housing 40. The limiting structure 50 controls the angle of deflection of the optical assembly 20 relative to the optical axis L1 to prevent the optical assembly 20 from deflecting, thereby ensuring the clarity of the imaging of the camera module 100.

[0100] In some embodiments, the number of the electromagnetic components 61 of the annular structure may be two, wherein one electromagnetic component 61 is disposed around the lens barrel 21 and is mounted on the flange 212 of the lens barrel 21, and the other electromagnetic component 61 is disposed on the inner top surface 41 of the housing 40. The electromagnetic component 61 may be a circular annular structure, or a rectangular annular structure, etc., and the two electromagnetic components 61 of the annular structure may be the same or different.

[0101] The two electromagnetic components 61 are adsorbed against each other, so that the electromagnetic component 61 located on the flange 212 can move the optical component 20 to a predetermined position in a direction away from the image sensor 10 by adsorbing the electromagnetic component 61 on the inner top surface 41, so that the protrusion 51 connects the optical component 20 and the outer shell 40, and the limiting effect of the protrusion 51 is fully effective, so as to ensure that the imaging surface of the optical component 20 is tilted at an angle less than 15′ relative to the image sensor 10, thereby ensuring that the imaging effect of the optical component 20 is better.

[0102] See also Figure 17-Figure 18 In some embodiments, the combined force F of the forces exerted on the optical component 20 by the first driving mechanism 30 and the second driving mechanism 60 passes through the area surrounded by at least three protrusions 51. In this way, the image plane of the optical component 20 can be prevented from being deflected after the combined force exerted on the optical component 20 by the first driving mechanism 30 and the second driving mechanism 60 can be avoided.

[0103] Specifically, when the force F1 generated by the first driving mechanism 30 on the optical component 20 acts on one side of the optical component 20, and the force F2 generated by the second driving mechanism 60 on the optical component 20 acts on the other side of the optical component 20, the combined force F of the forces generated by the first driving mechanism 30 and the second driving mechanism 60 on the optical component 20 can pass through the area surrounded by at least three protrusions 51.

[0104] More specifically, when the electronic device 1000 activates the shooting function, the first driving mechanism 30 can drive the optical component 20 to move along the optical axis L1 in a direction away from the image sensor 10, so that the optical component 20 extends out of the housing 200. Since the force exerted by the first driving mechanism 30 on the optical component 20 causes the optical component 20 to be subjected to uneven force or unilateral force, after the optical component 20 completes the ejection action, the optical component 20 has a large tilt angle relative to the image sensor 10, such as Fig.18 shown.

[0105] Furthermore, the second driving mechanism 60 drives the optical component 20 to move along the optical axis L1 in a direction away from the image sensor 10, and the combined force F exerted on the optical component 20 by the first driving mechanism 30 and the second driving mechanism 60 passes through the area surrounded by at least three protrusions 51, so that the imaging surface of the optical component 20 has a smaller inclination angle relative to the image sensor 10, such as Fig.19 As shown, the tilt angle of the optical component 20 relative to the image sensor 10 can be improved to ensure that the imaging of the optical component 20 is clearer.

[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, wherein the housing has a receiving cavity and includes an inner top surface facing the image sensor; An image sensor, wherein the image sensor is disposed in the accommodating cavity; An optical assembly, wherein the optical assembly is movable relative to the image sensor along an optical axis of the optical assembly, wherein the optical assembly comprises a lens barrel, and the lens barrel comprises a barrel body and a flange connected to the barrel body; a first driving mechanism, the first driving mechanism being used to drive the optical component to move along the optical axis; a second driving mechanism, the second driving mechanism being used to drive the optical component to move in a direction away from the image sensor; A limiting structure is arranged between the flange and the inner top surface. When the second driving mechanism is used to drive the optical component to move so that the opposite sides of the limiting structure respectively contact the flange and the inner top surface, the limiting structure limits the angle of deflection of the optical component relative to the optical axis.

2. The camera module according to claim 1, characterized in that: The limiting structure is arranged on the inner top surface and / or the flange.

3. The camera module according to claim 2, characterized in that: The limiting structure includes at least three protrusions, the at least three protrusions are not collinear, and when the optical component is in a predetermined position, the at least three protrusions connect the flange and the inner top surface.

4. The camera module according to claim 3, characterized in that: The second driving mechanism includes an electromagnetic component, which is aligned with one of the protrusions along the direction of the optical axis. One of the electromagnetic component and the corresponding protrusion is arranged on the flange, and the other is arranged on the inner top surface. The electromagnetic component and the corresponding protrusion cooperate to drive the optical component to move in a direction away from the image sensor to a predetermined position.

5. The camera module according to claim 3, characterized in that: The second driving mechanism comprises an electromagnetic component, and the electromagnetic component is arranged on the flange and / or the inner top surface. In the case where the electromagnetic component is disposed on the flange, the electromagnetic component moves the optical component to a predetermined position in a direction away from the image sensor by adsorbing the housing; In the case where the electromagnetic component is disposed on the inner top surface, the electromagnetic component can move the optical component to a predetermined position in a direction away from the image sensor by adsorbing the lens barrel.

6. The camera module according to claim 5, characterized in that: In the case where the electromagnetic assembly is arranged on the flange, the distance between the electromagnetic assembly and the inner top surface is greater than the distance between the protrusion and the surface toward which the protrusion protrudes; In the case where the electromagnetic assembly is disposed on the inner top surface, the distance between the electromagnetic assembly and the flange is greater than the distance between the protrusion and the surface toward which the protrusion protrudes.

7. The camera module according to claim 5, characterized in that: The electromagnetic component is in a ring structure surrounding the optical axis.

8. The camera module according to claim 3, characterized in that: The protrusion is in point contact or surface contact with the contacting surface.

9. The camera module according to claim 3, characterized in that: The combined force of the forces exerted on the optical component by the first driving mechanism and the second driving mechanism passes through the interior of the area surrounded by the at least three protrusions.

10. The camera module according to claim 1, characterized in that: The imaging surface of the optical component is tilted at an angle less than 15' relative to the image sensor.

11. An electronic device, characterized in that: include: chassis; and The camera module described in any one of claims 1-10 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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