Camera module and electronic device

Abstract

Embodiments of the present application relate to the technical field of camera modules, and specifically relate to a camera module and an electronic device. Embodiments of the present application provide a camera module, comprising: a shell, a lens assembly and a driving assembly, wherein the shell comprises an upper cover and a base arranged along a first direction, the lens assembly comprises a lens carrier and a lens, the lens carrier is arranged in the shell and can move relative to the shell, the lens carrier is provided with a first protruding structure and a second protruding structure, the first protruding structure is used for abutting against the upper cover, the second protruding structure is used for abutting against the base, the lens is arranged on the lens carrier, the driving assembly comprises a driving magnet and a driving coil, the driving magnet is arranged on the lens carrier, the driving coil is arranged on the shell, and the driving coil is used for driving the driving magnet to move the lens assembly, the lens carrier is formed by only one single component, which is conducive to reducing the size of the lens carrier, and further conducive to the miniaturization of the camera module and the electronic device.

Description

Technical Field

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

[0002] A camera module typically includes a lens carrier, a lens, a drive coil, and a drive magnet. The lens is mounted on the lens carrier and is used to converge light to collect light signals. The drive coil is located on the lens carrier and within the magnetic field of the drive magnet. The magnetic field of the drive magnet and the magnetic field generated by the drive coil interact to drive the movement of the lens carrier and lens, achieving focusing or image stabilization. However, camera modules are relatively large and occupy a significant amount of space. Utility Model Content

[0003] This application provides a camera module and an electronic device, which can reduce the size of the camera module and facilitate the miniaturization of the camera module and the electronic device.

[0004] This application provides a camera module, including: a housing, a lens assembly, and a driving assembly. The housing includes a top cover and a base, which are arranged along a first direction. The lens assembly includes a lens carrier and a lens. The lens carrier is disposed inside the housing and is movable relative to the housing. The lens carrier has a first protruding structure and a second protruding structure, which are spaced apart in the first direction. The first protruding structure is used to abut against the top cover, and the second protruding structure is used to abut against the base. The lens is disposed on the lens carrier. The driving assembly includes a driving magnet and a driving coil. The driving magnet is disposed on the lens carrier, and the driving coil is disposed on the housing. The driving coil is configured to generate a magnetic field so that the driving magnet drives the lens assembly to move under the action of the magnetic field. The first direction is parallel to the optical axis of the lens.

[0005] With the above configuration, the drive coil is located on the outer casing rather than on the lens carrier. Compared to having it on the lens carrier, the distance between the drive coil and the lens carrier and lens is greater when located on the outer casing. Therefore, the heat generated by the drive coil during operation has a smaller impact on the lens carrier and lens. Consequently, the lens carrier and lens deform less due to heat; in fact, they may be unaffected by the heat generated by the drive coil and remain undeformed, which helps ensure the optical performance of the lens. During the assembly of the camera module, the drive coil is wound around the outer casing instead of the lens carrier. The lens carrier will not deform due to the force exerted by the wound drive coil, which helps ensure the optical modulation transfer function characteristics of the lens carrier and the optical performance of the lens.

[0006] Furthermore, when the lens carrier moves relative to the outer shell, the first protruding structure can abut against the top cover, and the second protruding structure can abut against the base, so as to avoid collision between the lens carrier and the outer shell.

[0007] Furthermore, since the lens carrier is composed of only a single component, compared to assembling from two or more components, it avoids the gaps that arise during assembly, improving the fit accuracy between the lens carrier, lens, and other parts. It also reduces the number of assembly steps in the camera module, thus lowering labor costs. Additionally, it allows for a smaller lens carrier size, which in turn facilitates the miniaturization of the camera module.

[0008] In some embodiments that may include the above embodiments, the lens carrier is provided with a mounting groove, the driving magnet is located in the mounting groove, the first protruding structure, the mounting groove and the second protruding structure are arranged sequentially in the first direction, and the projection of the mounting groove and the projection of the first protruding structure overlap in a plane perpendicular to the first direction.

[0009] With the above configuration, at the location of the mounting slot, the first and second protruding structures increase the thickness of the lens carrier in the first direction, thereby increasing the structural strength of the lens carrier. Simultaneously, in the example where the lens carrier is injection molded, the first and second protruding structures minimize and stabilize the mold flow changes during injection molding, which helps ensure a high yield rate.

[0010] In some embodiments that may include the above-described embodiments, there are multiple first protruding structures, which are spaced apart circumferentially around the optical axis of the lens. This arrangement allows the lens carrier to abut against the top cover relatively stably.

[0011] In some embodiments that may include the above-described examples, there are multiple second protruding structures, which are spaced apart circumferentially around the optical axis of the lens. This arrangement allows the lens carrier to abut against the base relatively stably.

[0012] In some embodiments that may include the above embodiments, the housing includes an upper cover and a base connected to each other. The base includes a bottom plate and a seat disposed on the bottom plate. The bottom plate and the upper cover form an accommodating space, and the base is located within the accommodating space.

[0013] In some embodiments that may include the above embodiments, the base may further include a reinforcing member disposed on the base plate, and the reinforcing member may be a metal part.

[0014] Through the above-mentioned design, the reinforcing component can improve the strength of the base plate, which is beneficial for protecting the components inside the housing. Furthermore, due to the high density of metal, the reinforcing component helps reduce the thickness of the base plate while ensuring its strength, thereby reducing the overall height of the camera module and facilitating its miniaturization.

[0015] In some embodiments that may include the above-described embodiments, the top cover is a metal part, the reinforcing member has a connecting portion extending out of the edge of the bottom plate, and the top cover is welded to the connecting portion.

[0016] The above settings help ensure a more stable connection between the top cover and the base, preventing the top cover and base from separating during reliability testing of the camera module.

[0017] In some embodiments that may include the above embodiments, the camera module further includes a flexible circuit board for electrical connection with external devices, the flexible circuit board is fixedly connected to the housing, and the drive coil is disposed on the flexible circuit board.

[0018] With the above setup, external devices can control the movement of the lens carrier by controlling the current in the input drive coil, thereby achieving functions such as focusing or image stabilization.

[0019] In some embodiments that may include the above embodiments, the flexible circuit board includes an electrical contact, the electrical contact and the drive coil are electrically connected, and are used for electrical connection with external devices. The camera module also includes a reinforcing member, which is attached to the flexible circuit board and located on the side of the electrical contact.

[0020] With the above-mentioned reinforcement, the structural strength of the flexible circuit board can be increased, including the flexible circuit board and electrical contacts, to prevent damage to the flexible circuit board and electrical contacts during operation.

[0021] In some embodiments that may include the above embodiments, the base is an in-mold injection molded part with an embedded conductive element, the drive coil is connected to the conductive element, and a portion of the conductive element is formed as an electrical connection terminal for electrical connection with external devices.

[0022] With the above setup, external devices can control the movement of the lens carrier by controlling the current in the input drive coil, thereby achieving functions such as focusing or image stabilization.

[0023] In some embodiments that may include the above embodiments, the driving magnet includes a first magnet and a second magnet. The first magnet is located on one side of the lens carrier, and the second magnet is located on the other side of the lens carrier. The first magnet and the second magnet are spaced apart in a second direction, which is perpendicular to the optical axis of the lens. The magnetic field direction of the first magnet is the same as that of the second magnet. The driving coil includes a first coil and a second coil. The first coil is used to drive the first magnet to move, and the second coil is used to drive the second magnet to move.

[0024] The above settings facilitate more stable movement of the lens carrier.

[0025] In some embodiments that may include the above-described embodiments, the camera module further includes an elastic element that connects the lens carrier and the housing, allowing the lens carrier and the housing to move relative to each other. With this configuration, when the elastic element undergoes elastic deformation, the lens carrier can move relative to the housing.

[0026] This application also provides an electronic device, including: an image sensor and a camera module as described in any of the above embodiments, wherein the image sensor and the camera module are arranged along the optical axis of the lens. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application;

[0028] Figure 2 A schematic diagram of the structure of the camera module provided in the embodiments of this application. Figure 1 ;

[0029] Figure 3 for Figure 2 A cross-sectional view of the camera module shown along direction AA;

[0030] Figure 4 for Figure 2 Another angle view of the camera module shown;

[0031] Figure 5 for Figure 2 An exploded view of the camera module shown.

[0032] Figure 6 for Figure 2 Another angled schematic diagram of the camera module shown;

[0033] Figure 7 for Figure 2 A schematic diagram of the lens, lens carrier, and driving magnet in the camera module shown;

[0034] Figure 8 for Figure 7 A cross-sectional view of the lens, lens carrier, and driving magnet along the BB direction.

[0035] Figure 9 for Figure 7 Another angled schematic diagram of the lens, lens carrier, and driving magnet shown.

[0036] Figure 10 for Figure 7 Another angled schematic diagram of the lens, lens carrier, and driving magnet shown;

[0037] Figure 11 for Figure 5 Another angled schematic diagram of the flexible circuit board and drive coil in the camera module shown;

[0038] Figure 12 for Figure 5 Another angle view of the base in the camera module shown;

[0039] Figure 13 A schematic diagram of the structure of the camera module provided in the embodiments of this application. Figure 2 ;

[0040] Figure 14 for Figure 13 An exploded view of the camera module shown.

[0041] Figure 15 for Figure 14 A schematic diagram of the conductive components in the camera module shown.

[0042] Icon labels:

[0043] 1. Electronic equipment;

[0044] 10. Camera module; 20. Image sensor;

[0045] 100. Lens; 110. Optical axis; 200. Housing; 210. Top cover; 211. Top plate; 212. First side plate; 213. Second side plate; 214. Third side plate; 215. Fourth side plate; 220. Base; 221. Base plate; 222. Seat; 223. Reinforcing member; 2231. Connecting part; 2232. Third opening; 224. Mounting protrusion; 230. Accommodation space; 240. First opening; 250. Second opening; 300. Lens carrier; 310. Lens cavity; 320. First window; 330. Second window; 340. Gasket; 350. Mounting groove; 360. 370. A protruding structure; 400. A second protruding structure; 500. An elastic element; 510. A driving assembly; 511. A driving magnet; 512. A second magnet; 520. A driving coil; 521. A first coil; 522. A second coil; 610. A magnetic field sensor; 620. A positioning magnet; 700. A flexible circuit board; 710. A capacitor; 720. An electrical contact; 730. A mounting hole; 740. A first circuit board; 750. A second circuit board; 760. A third circuit board; 800. A reinforcing element; 900. A conductive element; 910. An electrical connection terminal; 920. An elastic part; 930. A reinforcing part. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all possible embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0048] As used herein, terms such as “equal,” “parallel,” and “perpendicular” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equal items less than or equal to 5% of either one.

[0049] In the embodiments of this application, the directional indications used to explain the structure and movement of different components, such as up, down, left, right, front, and back, are relative. These indications are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, these directional indications will also change accordingly.

[0050] This application provides a camera module and electronic device. The lens carrier, which mounts the lens, is constructed from a single component. Compared to assembling from two or more components, the lens carrier avoids gaps caused by assembly between components, improves the fitting accuracy between the lens carrier, lens, and other parts, and reduces the assembly steps of the camera module, thus lowering labor costs. Furthermore, it facilitates the reduction of the lens carrier's size, thereby contributing to the miniaturization of the camera module and electronic device.

[0051] This application provides an electronic device, which may include at least one of the following: mobile phone, camera, webcam, tablet computer, laptop computer, in-vehicle device, wearable device, virtual reality (VR) device, or augmented reality (AR) device. This application does not limit the type of electronic device. The electronic device includes a camera module, which can capture images to achieve functions such as taking photos, videos, or recording videos.

[0052] For example, in embodiments where the electronic device includes a mobile phone, the camera module can serve as the front-facing camera module of the mobile phone, or it can serve as the rear-facing camera module. Of course, the electronic device in this application is not limited to a mobile phone.

[0053] Please refer to Figure 1 The electronic device 1 includes a camera module 10 and an image sensor 20. The camera module 10 includes a lens 100, which may include at least one of a convex lens or a concave lens. The camera module 10 and the image sensor 20 are spaced apart along the optical axis 110 of the lens 100. The lens 100 in the camera module 10 is used to refract and converge light reflected from the scene to collect light signals and transmit the light signals to the image sensor 20. The image sensor 20 is used to convert the light signals into electrical signals to realize functions such as taking pictures, taking pictures, or recording videos. In some implementations, the image sensor 20 may include at least one of a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) device.

[0054] Please refer to Figure 2 This application provides a camera module 10. For ease of explanation, the height direction of the camera module 10 is defined as the first direction x, the length direction of the camera module 10 is defined as the second direction y, and the width direction of the camera module 10 is defined as the third direction z. Of course, in other examples, the second direction y can also be the width direction of the camera module 10, and the third direction z can also be the length direction of the camera module 10; this application does not impose any limitations on this.

[0055] Wherein, the first direction x is parallel to the optical axis 110 of the lens 100 in the camera module 10 (e.g., Figure 1 (As shown) Parallel. The second direction y intersects the first direction x; for example, the second direction y can be perpendicular or approximately perpendicular to the first direction x. The third direction z intersects the plane containing the first direction x and the second direction y; for example, the third direction z can be perpendicular or approximately perpendicular to the plane containing the first direction x and the second direction y.

[0056] The camera module 10 includes a housing 200, which supports and secures other components within the camera module 10. Simultaneously, the housing 200 protects these components, ensuring the camera module 10 operates normally and stably. This application does not limit the shape of the housing 200; for example, it can be rectangular or approximately rectangular, or it can be cubic, cylindrical, or other shapes.

[0057] Please combine Figure 2 and Figure 3The outer casing 200 includes a top cover 210 and a base 220 arranged along a first direction x. The materials used to make the top cover 210 and the base 220 may include at least one of plastic, metal, glass, or rubber. The top cover 210 and the base 220 are fixedly connected and form an accommodating space 230. For example, the top cover 210 and the base 220 may be fixedly connected by at least one of the following methods: bolt connection, snap-fit, adhesive bonding, or welding.

[0058] In some implementation methods, please combine Figure 2 , Figure 3 as well as Figure 4 The upper cover 210 may include a top plate 211, a first side plate 212, a second side plate 213, a third side plate 214, and a fourth side plate 215. The top plate 211 is rectangular, and the first side plate 212, second side plate 213, third side plate 214, and fourth side plate 215 are connected to different sides of the top plate 211. The first side plate 212 and third side plate 214 are spaced apart in the second direction y and are both perpendicular to the second direction y. The second side plate 213 and fourth side plate 215 are spaced apart in the third direction z, both perpendicular to the third direction z, and are both connected between the first side plate 212 and the third side plate 214.

[0059] The base 220 may include a base plate 221 and a seat 222 disposed on the base plate 221. The base plate 221 may be rectangular. The base plate 221 and the top cover 210 are connected and together form an accommodating space 230, within which the base 220 is located. For example, the base plate 221 and the top plate 211 may be arranged in a first direction x, and a first side plate 212, a second side plate 213, a third side plate 214, and a fourth side plate 215 may be connected between the top cover 210 and the base plate 221.

[0060] In one embodiment, please combine Figure 4 and Figure 5 The base 220 also includes a reinforcing member 223, which is disposed on the base plate 221. The base plate 221 is made of plastic, while the reinforcing member 223 is made of metal. For example, the material used to make the reinforcing member 223 may include at least one of stainless steel, aluminum, magnesium, or titanium. Through this arrangement, the reinforcing member 223 can improve the strength of the base plate 221, which is beneficial for protecting the components inside the housing 200. Furthermore, due to the high density of metal, while ensuring the strength of the base plate 221, the reinforcing member 223 helps to reduce the thickness of the base plate 221, thereby helping to reduce the overall height of the camera module 10.

[0061] In some implementations, the reinforcing member 223 can be installed within the base plate 221 through a secondary injection molding process, forming an integral structure with the base 220. This arrangement reduces the number of components in the camera module 10 and the number of assembly steps, thus lowering labor costs.

[0062] In other implementations, the reinforcing member 223 can be fixedly connected to the base plate 221 by at least one of the following connection methods: adhesive bonding, snap-fitting, or bolt connection.

[0063] In one embodiment, please refer to Figure 5 and Figure 6 The reinforcing member 223 has a connecting portion 2231 extending beyond the edge of the base plate 221. The upper cover 210 is a metal part, and the connecting portion 2231 is welded to the upper cover 210, thereby fixing the upper cover 210 and the base 220 together. For example, the connecting portion 2231 can be welded to at least one of the first side plate 212, the second side plate 213, the third side plate 214, or the fourth side plate 215. This arrangement helps to ensure a relatively stable connection between the upper cover 210 and the base 220, preventing the upper cover 210 and the base 220 from separating during reliability testing of the camera module 10.

[0064] In the above embodiments, multiple connecting portions 2231 can be provided, with each portion spaced apart and welded to the upper cover 210, thus ensuring a relatively stable connection between the upper cover 210 and the base 220. For example, four connecting portions 2231 can be provided. Two of the four connecting portions 2231 are located on one side of the reinforcing member 223 and can be welded to the second side plate 213. The other two of the four connecting portions 2231 are located on the other side of the reinforcing member 223 and can be welded to the fourth side plate 215. Of course, in other examples, six, eight, or more connecting portions 2231 can be provided; this application does not limit the number of connecting portions 2231.

[0065] Please refer to Figure 7 and Figure 8 The camera module 10 includes a lens carrier 300. The lens carrier 300 may be made of at least one of the following materials: metal, plastic, or rubber. For example, the lens carrier 300 may be a plastic part manufactured by injection molding. The lens carrier 300 has a lens cavity 310, in which the lens 100 is mounted. The lens carrier 300 also has a first window 320 and a second window 330 communicating with the lens cavity 310. The first window 320 and the second window 330 are spaced apart along a first direction x, and the lens cavity 310 is located between the first window 320 and the second window 330.

[0066] Correspondingly, please refer to Figure 3 and Figure 5The housing 200 has a first opening 240 and a second opening 250, which are spaced apart along a first direction x, and both the first opening 240 and the second opening 250 communicate with the receiving space 230. The lens carrier 300 is located within the receiving space 230, and at least a portion of the lens carrier 300 can extend out of the housing 200 through the first opening 240. A first window 320 is provided on the lens carrier 300 extending out of the housing 200, and a second window 330 faces the second opening 250, which in turn faces the image sensor 20 (e.g., ...). Figure 1 (As shown) The setup allows light to pass through the first window 320, the second window 330, and the second opening 250, through the camera module 10 and the lens 100 within the lens carrier 300, and to the image sensor 20.

[0067] For example, the first opening 240 may be provided on the top plate 211, and the second opening 250 may be provided on the bottom plate 221. In an embodiment where the base 220 includes a reinforcing member 223, the reinforcing member 223 may be provided with a third opening 2232, which communicates with the second opening 250, so that light can pass through the reinforcing member 223.

[0068] In the above example, along the direction from the first window 320 to the second window 330, the area of ​​the cross-section of the lens cavity 310 perpendicular to the first direction x gradually increases. Multiple lenses 100 may be provided, and each lens 100 may include at least one of a convex lens or a concave lens. The shape, material, or surface curvature of each lens 100 may differ from the other lenses 100. The multiple lenses 100 are spaced apart within the lens carrier 300 along the first direction x. In two adjacent lenses 100, the diameter of the lens 100 closer to the second window 330 is larger than the diameter of the lens 100 closer to the first window 320.

[0069] In some implementations, the lens carrier 300 may also include multiple washers 340, which may be disposed between two adjacent lenses 100 to limit the movement of the lenses 100 and prevent the two adjacent lenses 100 from contacting or bumping.

[0070] In the above example, the lens carrier 300 is constructed from a single component. Therefore, compared to assembling from two or more components, the lens carrier 300 avoids gaps in the fit between components due to assembly, improving the fitting accuracy between the lens carrier 300, the lens 100, and other components. It also reduces the assembly steps of the camera module 10, thus reducing labor costs. Simultaneously, it facilitates a reduction in the size of the lens carrier 300, which in turn facilitates a reduction in the size of the camera module 10 and the electronic device 1. For example, the dimensions of the lens carrier 300 in the second direction y and the third direction z can be reduced. In some implementations, the lens carrier 300 can be a single-piece molded component.

[0071] Please refer to Figure 3 and Figure 5 The lens carrier 300 is connected to the housing 200 and is movable relative to the housing 200. Therefore, the lens carrier 300 can move the lens 100 relative to the image sensor 20 (e.g., ...). Figure 1 (As shown), to achieve functions such as focusing or image stabilization.

[0072] In one embodiment, the camera module 10 further includes an elastic element 400. The material used to make the elastic element 400 may include at least one of the following materials capable of elastic deformation: metal, plastic, rubber, etc. The lens carrier 300 is connected to the housing 200 via the elastic element 400 and moves relative to the housing 200 via the elastic element 400. In some implementations, the elastic element 400 is disposed on the housing 200, elastically connecting the housing 200 and the lens carrier 300. For example, the elastic element 400 may be disposed on the base 220, or it may also be disposed on the top cover 210. With the above configuration, when the elastic element 400 undergoes elastic deformation, the lens carrier 300 can move relative to the housing 200, thereby causing the lens 100 to move relative to the image sensor 20.

[0073] In the above embodiments, multiple elastic elements 400 may be provided, and all multiple elastic elements 400 are elastically connected to the housing 200 and the lens carrier 300. This arrangement helps to ensure the stability of the lens carrier 300's movement, improve the focusing effect of the camera module 10, or improve the image stabilization effect of the camera module 10.

[0074] In another embodiment, the camera module 10 may include a guide rail and a slider, with the slider slidably connected to the guide rail. The lens carrier 300 is connected to the housing 200 via the guide rail and the slider, and moves relative to the housing 200 via the guide rail and the slider. Specifically, the guide rail may be connected to the housing 200, and the slider may be connected to the lens carrier 300. Alternatively, the guide rail may be connected to the lens carrier 300, and the slider may be connected to the housing 200. With this configuration, the sliding of the slider relative to the guide rail can cause the lens carrier 300 to move relative to the housing 200, thereby causing the lens 100 to move relative to the image sensor 20.

[0075] Please refer to Figure 3 The camera module 10 also includes a drive assembly 500, which is located within the accommodating space 230 and is used to drive the lens carrier 300 to move relative to the housing 200. The drive assembly 500 includes a drive magnet 510 and a drive coil 520, wherein the drive magnet 510 is disposed on the lens carrier 300 and the drive coil 520 is disposed on the housing 200. For example, the drive coil 520 can be disposed on the base 220, and in other examples, the drive coil 520 can also be disposed on the top cover 210.

[0076] The drive coil 520 is configured to receive an input current to generate a magnetic field. The magnetic field generated by the drive coil 520 interacts with the magnetic field of the drive magnet 510, resulting in an electromagnetic interaction force between the drive coil 520 and the drive magnet 510. Specifically, the drive coil 520 applies a driving force to the drive magnet 510, causing the drive magnet 510 to move relative to the drive coil 520, thereby moving the lens carrier 300 relative to the housing 200 to achieve functions such as focusing or image stabilization.

[0077] In the above embodiment, the drive coil 520 is disposed on the housing 200 instead of on the lens carrier 300. Compared to being disposed on the lens carrier 300, being disposed on the housing 200 results in a greater distance between the drive coil 520 and the lens carrier 300 and lens 100. Therefore, the heat generated by the drive coil 520 during operation has a smaller impact on the lens carrier 300 and lens 100. Consequently, the degree of deformation of the lens carrier 300 and lens 100 due to heat is smaller; in fact, the lens carrier 300 and lens 100 may be unaffected by the heat generated by the drive coil 520 during operation and may not deform, which is beneficial for ensuring the optical performance of the lens 100.

[0078] Meanwhile, during the assembly of the camera module 10, the drive coil 520 is wound around the housing 200 instead of the lens carrier 300. The lens carrier 300 will not deform due to the force exerted by the wound drive coil 520, which is beneficial to ensuring the optical modulation transfer function (MTF) characteristics of the lens carrier 300 and the optical performance of the lens 100.

[0079] In one embodiment, please refer to Figure 5 The lens carrier 300 has a mounting groove 350, and the driving magnet 510 is installed in the mounting groove 350. For example, the driving magnet 510 can be bonded to the groove wall of the mounting groove 350, or the driving magnet 510 can also be snapped into the groove wall of the mounting groove 350. With the above arrangement, at least part of the driving magnet 510 is located in the mounting groove 350, which helps to reduce the size of the camera module 10.

[0080] In the above example, multiple driving coils 520 and driving magnets 510 can be provided, with each driving coil 520 used to drive different driving magnets 510 to move. The multiple driving coils 520 and multiple driving magnets 510 can be arranged circumferentially around the optical axis 110 of the lens 100.

[0081] For example, such as Figure 3 As shown, both the drive coil 520 and the drive magnet 510 can be provided in duplicate. The two drive coils 520 include a first coil 521 and a second coil 522, and the two drive magnets 510 include a first magnet 511 and a second magnet 512. The first coil 521 is used to drive the first magnet 511 to move, and the second coil 522 is used to drive the second magnet 512 to move. The first magnet 511 and the second magnet 512 are spaced apart in the second direction y, and are located on opposite sides of the lens carrier 300. The first magnet 511 can be located on the side of the lens carrier 300 closest to the first side plate 212, and the second magnet 512 can be located on the side of the lens carrier 300 closest to the third side plate 214. Correspondingly, the first coil 521 and the second coil 522 can also be spaced apart in the second direction y. In the example where the driving coil 520 is located on the base 220, the first coil 521 can be located on the side of the base 220 near the first side plate 212, and the second coil 522 can be located on the side of the base 220 near the third side plate 214. Of course, the first magnet 511 and the second magnet 512 can also be spaced apart in the third direction z, and correspondingly, the first coil 521 and the second coil 522 can also be spaced apart in the third direction z.

[0082] In the above embodiment, the magnetic field direction of the first magnet 511 is equal to the magnetic field direction of the second magnet 512. In other examples, the magnetic field direction of the first magnet 511 and the magnetic field direction of the second magnet 512 may not be equal.

[0083] In some other embodiments, the drive coil 520 and the drive magnet 510 may each be provided in three or more forms. The embodiments of this application do not limit the number of drive coils 520 and drive magnets 510.

[0084] Please combine Figure 3 , Figure 7 and Figure 9 The lens carrier 300 is provided with a first protruding structure 360 ​​and a second protruding structure 370. Both the first protruding structure 360 ​​and the second protruding structure 370 are located within the accommodating space 230, and the first protruding structure 360 ​​and the second protruding structure 370 can be spaced apart in the first direction x. The first protruding structure 360 ​​is located on the side of the lens carrier 300 near the top plate 211. When the lens carrier 300 moves along the direction from the bottom plate 221 to the top plate 211, the first protruding structure 360 ​​can be used to abut against the top cover 210. For example, the first protruding structure 360 ​​can be used to abut against the top plate 211 to prevent other parts of the lens carrier 300 from bumping against the top cover 210. The second protruding structure 370 is located on the side of the lens carrier 300 near the base plate 221. When the lens carrier 300 moves along the direction from the top plate 211 to the base plate 221, the second protruding structure 370 is used to abut against the base 220. For example, the second protruding structure 370 can abut against the base plate 221 to prevent other parts of the lens carrier 300 from colliding with the base 220.

[0085] In one embodiment, multiple first protrusions 360 may be provided, and these multiple first protrusions 360 may be circumferentially spaced around the optical axis 110 of the lens 100. Multiple second protrusions 370 may also be provided, and these multiple second protrusions 370 may be circumferentially spaced around the optical axis 110 of the lens 100. With the above arrangement, the lens carrier 300 can be stably abutted against the top cover 210 or the base 220.

[0086] In the above example, the number of first protruding structures 360 can be equal to the number of second protruding structures 370, and multiple first protruding structures 360 are spaced apart from different second protruding structures 370 in the first direction x. For example, there can be four first protruding structures 360 and four second protruding structures 370. The four first protruding structures 360 are arranged around the optical axis 110 of the lens 100 at equal central angles, and the four second protruding structures 370 are also arranged around the optical axis 110 of the lens 100 at equal central angles. Of course, in other examples, the number of first protruding structures 360 and second protruding structures 370 can also be other than those specified in this application.

[0087] In one embodiment, the first protruding structure 360, the mounting groove 350, and the second protruding structure 370 are arranged sequentially in the first direction x. In a plane perpendicular to the first direction, the projections of the mounting groove 350 and the first protruding structure 360 ​​overlap. Through this arrangement, at the location of the mounting groove 350, the first protruding structure 360 ​​and the second protruding structure 370 increase the thickness of the lens carrier 300 in the first direction x, thereby increasing the structural strength of the lens carrier 300. Simultaneously, in the example where the lens carrier 300 is injection molded, the first protruding structure 360 ​​and the second protruding structure 370 minimize and stabilize the mold flow changes during injection molding, which helps ensure a high yield rate in injection molding.

[0088] Please refer to Figure 5 and Figure 10 The camera module 10 also includes a magnetic field sensor 610 and a positioning magnet 620, which are respectively disposed on the housing 200 and the lens carrier 300. For example, the magnetic field sensor 610 can be disposed on the base 220, and the positioning magnet 620 can be disposed on the lens carrier 300. Alternatively, the positioning magnet 620 can be disposed on the base 220, and the corresponding magnetic field sensor 610 can be disposed on the lens carrier 300. The magnetic field sensor 610 is used to detect the magnetic field generated by the positioning magnet 620, and to determine the position of the positioning magnet 620 relative to the magnetic field sensor 610 based on the magnetic field of the positioning magnet 620, thereby obtaining the position information of the positioning magnet 620 and the lens carrier 300.

[0089] With the above settings, the drive coil 520 is controlled to generate a magnetic field based on the position information of the lens carrier 300 to drive the lens carrier 300 to move, which helps to improve the effect of focusing or image stabilization functions.

[0090] Please refer to Figure 5 In one embodiment, the camera module 10 includes a flexible circuit board 700. The flexible circuit board 700 may be equipped with electronic components such as capacitors 710 and resistors. The flexible circuit board 700 can be used to electrically connect the drive coil 520 to external devices. For example, the drive coil 520 can be disposed on and electrically connected to the flexible circuit board 700. The flexible circuit board 700 can also be electrically connected to external devices to connect the drive coil 520 to the external devices. Thus, the external devices can control the movement of the lens carrier 300 by controlling the current input to the drive coil 520, thereby achieving functions such as focusing or image stabilization.

[0091] In some implementations, the flexible circuit board 700 also includes electrical contacts 720, which may include at least one of edge connectors, board-to-board connectors, or pin header / female connectors. At least a portion of the electrical contacts 720 are exposed outside the housing to facilitate electrical connection between the flexible circuit board 700 and external devices.

[0092] The flexible circuit board 700 is located within the accommodating space 230 and is fixedly connected to the housing 200. For example, the flexible circuit board 700 can be fixedly connected to at least one of the top cover 210 or the base 220.

[0093] For some implementation methods, please refer to Figure 11 and Figure 12 The flexible circuit board 700 and the housing 200 can be fixedly connected by mounting protrusions 224 and mounting holes 730. The mounting protrusions 224 are located in one of the flexible circuit board 700 and the housing 200, and the mounting holes 730 are located in the other. The mounting protrusions 224 pass through the mounting holes 730 to mount the flexible circuit board 700 onto the housing 200. In one example, the flexible circuit board 700 has mounting holes 730, and the housing 200 has mounting protrusions 224. The mounting protrusions 224 can be located on at least one of the top cover 210 or the base 220. In another example, the flexible circuit board 700 has mounting protrusions 224, and the housing 200 has mounting holes 730. The mounting holes 730 can be located on at least one of the top cover 210 or the base 220.

[0094] In other implementations, the flexible circuit board 700 and the housing 200 can also be mounted on the housing 200 by at least one of other connection methods such as adhesive bonding or snap-fit ​​connection.

[0095] In one embodiment, please refer back to Figure 5 The camera module 10 also includes a reinforcing member 800. The material used to make the reinforcing member 800 may include at least one of the following metals: stainless steel, aluminum, or copper. The material used to make the reinforcing member 800 may also include at least one of the following materials: plastic, glass fiber, or carbon fiber. This application does not limit the shape of the reinforcing member 800; for example, the reinforcing member 800 may be plate-shaped, or it may be other shapes. The reinforcing member 800 is disposed on the flexible circuit board 700, and at least a portion of the reinforcing member 800 is located on the side of the electrical contact 720.

[0096] With the above configuration, the reinforcing member 800 can increase the structural strength of the flexible circuit board 700, including the flexible circuit board 700 and the electrical contact 720, and prevent the flexible circuit board 700 and the electrical contact 720 from being damaged during operation.

[0097] In one embodiment, the flexible circuit board 700 includes a first circuit board 740, a second circuit board 750, and a third circuit board 760, which are disposed around the lens carrier 300. The first circuit board 740 and the third circuit board 760 are both perpendicular to a second direction y and are spaced apart in the second direction y. The second circuit board 750 is perpendicular to a third direction z and is connected between the first circuit board 740 and the third circuit board 760. The first circuit board 740 is located between a first side plate 212 and a base 220, the second circuit board 750 is located between a second side plate 213 and a base 220, and the third circuit board 760 is located between a third side plate 214 and a base 220. The first coil 521 can be disposed on the first circuit board 740, the second coil 522 can be disposed on the third circuit board 760, the electrical contact 720 and the reinforcing member 800 can be disposed on the second circuit board 750, the electrical contact 720 is located on one side of the second circuit board 750, and the reinforcing member 800 is located on the other side of the second circuit board 750.

[0098] In one embodiment, please combine Figure 13 , Figure 14 as well as Figure 15 The camera module 10 includes a conductive element 900. The material used to make the conductive element 900 may include at least one of conductive metals such as copper, silver, or aluminum. The conductive element 900 can be used to electrically connect the drive coil 520 to an external device. For example, the drive coil 520 may be disposed on the base 220 and electrically connected to the conductive element 900. The conductive element 900 can also be electrically connected to an external device to connect the drive coil 520 to the external device. Thus, the external device can control the movement of the lens carrier 300 by controlling the current input to the drive coil 520, thereby achieving functions such as focusing or image stabilization.

[0099] The conductive element 900 has an electrical connection end 910, which is formed at the end of the conductive element 900 and includes at least a portion of the conductive element 900. At least a portion of the electrical connection end 910 is exposed outside the housing and is used for electrical connection with external devices.

[0100] In the above embodiments, the conductive component 900 is disposed on the base 220. In some implementations, the conductive component 900 can be embedded in the base 220 through a continuous compression molding (CCMI) process, forming an integral molded structure with the base 220. That is, the base 220 is an in-mold injection molded part with the conductive component 900 embedded inside. This reduces the number of parts in the camera module 10 and the number of assembly steps, which helps to reduce labor costs. In other implementations, the conductive component 900 can also be installed on the base 220 by at least one of the following connection methods: bonding, snap-fitting, or welding.

[0101] In one embodiment, the conductive element 900 further includes an elastic portion 920, which comprises at least a portion of the conductive element 900 and is capable of elastic deformation. The elastic portion 920 is used to connect with the lens carrier 300, thereby elastically connecting the lens carrier 300 to the base 220, allowing the lens carrier 300 to move relative to the base 220. This configuration avoids the need for an elastic element 400 to connect the lens carrier 300 and the housing 200, reducing the number of components in the camera module 10 and the number of assembly steps, thus reducing labor costs.

[0102] In one embodiment, the conductive element 900 further includes a reinforcing portion 930, which comprises at least a portion of the conductive element 900. The reinforcing portion 930 is disposed on the base plate 221 and serves to increase the strength of the base plate 221, and can also be used to reduce the thickness of the base plate 221. With the above arrangement, the use of the reinforcing element 223 can be avoided, reducing the number of components in the camera module 10 and the number of assembly steps for the camera module 10, thus helping to reduce labor costs.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A camera module, characterized in that, include: Housing, the housing comprising: A top cover and a base, the top cover and the base being arranged along a first direction; Lens assembly, the lens assembly comprising: A lens carrier is disposed inside the housing and is movable relative to the housing. The lens carrier is provided with a first protruding structure and a second protruding structure. The first protruding structure and the second protruding structure are spaced apart in the first direction. The first protruding structure is used to abut against the upper cover, and the second protruding structure is used to abut against the base. Lens, the lens being disposed on the lens carrier; and The driver component includes: A driving magnet, wherein the driving magnet is disposed on the lens carrier; A drive coil is disposed in the housing and is configured to generate a magnetic field so that the drive magnet moves the lens assembly under the action of the magnetic field. The first direction is parallel to the optical axis of the lens.

2. The camera module according to claim 1, characterized in that, The lens carrier is provided with a mounting slot, and the driving magnet is located in the mounting slot; The first protruding structure, the mounting groove, and the second protruding structure are arranged sequentially in the first direction, and the projection of the mounting groove and the projection of the first protruding structure overlap in a plane perpendicular to the first direction.

3. The camera module according to claim 1 or 2, characterized in that, The first protruding structure is multiple, and the multiple first protruding structures are arranged circumferentially around the optical axis of the lens; and / or The second protruding structure is multiple, and the multiple second protruding structures are arranged circumferentially around the optical axis of the lens.

4. The camera module according to claim 1 or 2, characterized in that, The base includes a base plate and a seat body disposed on the base plate. The base plate and the upper cover form an accommodating space, and the base is located within the accommodating space.

5. The camera module according to claim 4, characterized in that, The base also includes a reinforcing member, which is disposed on the base plate and is made of metal.

6. The camera module according to claim 5, characterized in that, The top cover is a metal part, and the reinforcing member has a connecting part that extends out of the edge of the bottom plate. The top cover is welded to the connecting part.

7. The camera module according to claim 4, characterized in that, The camera module also includes a flexible circuit board for electrical connection with external devices. The flexible circuit board is fixedly connected to the housing, and the drive coil is disposed on the flexible circuit board.

8. The camera module according to claim 7, characterized in that, The flexible circuit board includes electrical contacts, which are electrically connected to the drive coil and used for electrical connection with external devices. The camera module also includes a reinforcing member, which is attached to the flexible circuit board and located on the side of the electrical contact.

9. The camera module according to claim 4, characterized in that, The base is an in-mold injection molded part with an embedded conductive component. The drive coil is connected to the conductive component, and a portion of the conductive component is formed as an electrical connection terminal for electrical connection with external devices.

10. An electronic device, characterized in that, include: An image sensor and a camera module according to any one of claims 1 to 9, wherein the image sensor and the camera module are arranged along the optical axis of the lens.

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