A camera module

Abstract

The application discloses a camera module, characterized in that comprising: a photosensitive assembly; a lens assembly held on a photosensitive path of the photosensitive assembly, comprising a lens driving module and an optical lens mounted on the lens driving module, the optical lens having an optical axis; a light-transmitting cover plate, the light-transmitting cover plate covering the optical lens, the light-transmitting cover plate having a cover plate image side opposite to the optical lens; and a telescopic assembly, comprising: a sleeve module, the sleeve module comprising a limiting carrier, the light-transmitting cover plate being fixed to the limiting carrier, the limiting carrier having a limiting image side opposite to the lens driving module; and a telescopic driving module, the sleeve module being fixed to the telescopic driving module, the sleeve module being driven by the telescopic driving module to move along the optical axis; wherein the distance between the cover plate image side and the limiting image side is greater than the height of the optical lens protruding from the lens driving module.

Description

Technical Field

[0001] This application relates to the field of camera module technology, and more particularly to a retractable camera module. Background Technology

[0002] With the development and widespread adoption of mobile electronic devices, the technology related to camera modules used in these devices to help users acquire images has developed and progressed rapidly. Currently, in the market, as living standards improve, consumers have increasingly higher and more diverse requirements for the functions of camera modules configured in mobile electronic devices (e.g., smartphones). For example, they not only require camera modules to achieve wide-angle shooting to capture images of the subject from a larger angle within a relatively short shooting distance, but also to achieve telephoto shooting capabilities to capture clear images of the subject at different distances through optical focusing.

[0003] Furthermore, to meet increasingly diverse market demands, smaller size and thinner profiles are an irreversible development trend for existing camera modules. However, to achieve telephoto shooting capabilities, camera modules need to be equipped with telephoto lenses with long focal lengths. This means that camera modules capable of telephoto shooting are relatively large and tall. Thus, it is difficult for camera modules to meet the requirements of small size and thinness while simultaneously achieving telephoto shooting functionality.

[0004] To resolve the technical conflict between the height design of camera modules and high-magnification zoom capabilities, most manufacturers have adopted periscope camera modules to replace traditional vertical camera modules. Compared to traditional vertical camera modules, periscope camera modules incorporate light-deflecting elements (such as prisms and mirrors) to alter the imaging optical path, thereby achieving a reduction in the overall height of the camera module while meeting the optical design requirements for a larger effective focal length.

[0005] However, periscope camera modules have a more complex structure, which leads to both increased costs and greater manufacturing difficulty. In terms of optical performance, while periscope camera modules have a relatively large effective focal length, this effective focal length is fixed, meaning their optical performance has relatively poor adjustability. To meet diverse consumer demands for camera modules, multiple camera modules are typically required for electronic devices—that is, multi-camera modules—which not only significantly increases costs but also further complicates manufacturing.

[0006] Therefore, a new type of camera module solution is needed. Summary of the Invention

[0007] One objective of this application is to provide a camera module that overcomes the shortcomings of the prior art by designing the camera module to be able to switch between two states: extension and retraction, which helps to resolve the contradiction between the imaging quality and the height of the camera module.

[0008] According to one aspect of this application, a camera module is provided, comprising:

[0009] Photosensitive components;

[0010] A lens assembly held in the light-sensing path of the photosensitive component, comprising a lens driving module and an optical lens mounted on the lens driving module, the optical lens having an optical axis;

[0011] A light-transmitting cover plate, the light-transmitting cover plate covering the optical lens, the light-transmitting cover plate having an image-side surface opposite to the optical lens; and

[0012] Telescopic component, comprising:

[0013] A sleeve module, the sleeve module including a limiting carrier, the light-transmitting cover plate being fixed to the limiting carrier, the limiting carrier having a limiting image side side, the limiting image side side being opposite to the lens driving module;

[0014] A telescopic drive module, wherein the sleeve module is fixed to the telescopic drive module, and the sleeve module is driven by the telescopic drive module to move along the optical axis;

[0015] The distance between the cover plate image side and the limiting image side is greater than the height of the optical lens protruding from the lens drive module.

[0016] In some embodiments, the distance between the cover plate image side and the limiting image side is at least 0.15 mm greater than the height of the optical lens protruding from the lens drive module.

[0017] In some embodiments, the limiting carrier includes a carrier body and a limiting protrusion extending from the carrier body toward the image side, the limiting image side being formed on the image side of the limiting protrusion, and the orthographic projection of the limiting image side in the direction of the optical axis at least partially overlaps with the orthographic projection of the lens driving module in the direction of the optical axis.

[0018] In some embodiments, the limiting carrier includes a cover plate support portion that extends inward from the carrier body, and the light-transmitting cover plate is fixed to the cover plate support portion.

[0019] In some embodiments, the sleeve module includes a movable sleeve and a sleeve drive component, the sleeve drive component being fixed to the image side of the movable sleeve, the limiting carrier being fixed to the object side of the movable sleeve, and the sleeve module being fixed to the telescopic drive module via the sleeve drive component.

[0020] In some embodiments, the telescopic component includes a pop-up module, the pop-up module including a support base and an elastic member, the support base being fixed to the photosensitive component, the elastic member being clamped between the support base and the lens component, the lens component being driven by the pop-up module to move toward the object side, wherein the driving stroke of the pop-up module is less than the driving stroke of the telescopic driving module.

[0021] In some embodiments, the telescopic component includes a stop module, which includes a stop movable component and a fixing component. The stop movable component is fixed to the lens assembly, and the fixing component is fixed to the support base. The lens assembly is prevented from moving toward the object side by the abutment between the stop movable component and the fixing component.

[0022] In some embodiments, the telescopic assembly includes a retaining module, which includes a magnet portion and a yoke portion disposed opposite to the magnet portion. The magnet portion is fixed to one of the lens assembly or the fixing assembly, and the yoke portion is fixed to the other of the lens assembly or the fixing assembly. The magnet portion and the yoke portion are magnetically attracted to each other, so that the retaining module holds the lens assembly to one side of the telescopic assembly by magnetic attraction.

[0023] In some embodiments, the telescopic assembly includes a support module and a retaining module disposed on the same side of the lens assembly. The support module is clamped between the lens assembly and the fixing assembly by magnetic attraction between the magnet and the yoke.

[0024] In some embodiments, the telescopic assembly includes a housing, the housing including a cover, a base and a vent, the cover and the base engaging to form a receiving cavity to receive the sleeve module and the telescopic drive module, the cover having a vent formed on the side wall of the cover, and the vent covering the vent.

[0025] Compared with the prior art, this application has at least one of the following technical effects:

[0026] 1. By setting up a light-transmitting cover, light can be allowed to pass through while protecting the optical lens.

[0027] 2. The light-transmitting cover is fixed to the limiting carrier of the sleeve module, so that it moves with the sleeve module, thereby preventing the lens assembly from colliding with the light-transmitting cover during the extension process.

[0028] 3. By using the pop-up module, the lens assembly is provided with a force that keeps it away from the photosensitive assembly, thereby simplifying the design of the camera module's drive structure.

[0029] 4. The stop module limits the travel of the lens assembly toward the object side of the optical axis.

[0030] Further embodiments and features are set forth in part in the following description, and will be understood by those skilled in the art upon review of the specification or through practice of the disclosed subject matter. Further understanding of the features and advantages of this disclosure may be achieved by referring to the remainder of the specification and drawings, which form part of this application. Attached Figure Description

[0031] Figure 1A This is a schematic diagram of the non-working state of the camera module according to an embodiment of this application;

[0032] Figure 1B This is a structural schematic diagram of the working state of the camera module according to an embodiment of this application;

[0033] Figure 2A This is a cross-sectional schematic diagram of the camera module in its non-operating state according to an embodiment of this application;

[0034] Figure 2B This is a cross-sectional schematic diagram of the working state of the camera module according to the embodiments of this application;

[0035] Figure 3A , 3B 3C are schematic diagrams of the structures of three lens driving modules according to embodiments of this application;

[0036] Figure 4 This is a schematic diagram of the structure of an electrical connection assembly according to an embodiment of this application;

[0037] Figure 5 This is an exploded view of a camera module according to an embodiment of this application;

[0038] Figure 6A This is another exploded view of a camera module according to an embodiment of this application;

[0039] Figure 6B This is a structural schematic diagram of a sleeve transmission component according to an embodiment of this application;

[0040] Figure 7A , 7BThese are schematic diagrams of two pop-up modules according to embodiments of this application;

[0041] Figure 8A This is an exploded view of the sleeve module according to an embodiment of this application;

[0042] Figure 8B This is a structural schematic diagram of the sleeve module according to an embodiment of this application;

[0043] Figure 8C This is another structural schematic diagram of the sleeve module according to an embodiment of this application;

[0044] Figure 9A , 9B These are two exploded views of the holding module according to an embodiment of this application;

[0045] Figure 10A This is a top view of the stop module according to an embodiment of this application;

[0046] Figure 10B This is a structural schematic diagram of the stop module according to an embodiment of this application.

[0047] Figure 11A This is a cross-sectional schematic diagram of a camera module according to another embodiment of this application;

[0048] Figure 11B This is a side view of a camera module according to another embodiment of this application;

[0049] Figure 11C This is a bottom view of a camera module according to another embodiment of this application.

[0050] Figure 12A This is a cross-sectional schematic diagram of a camera module in a non-operating state according to another embodiment of this application;

[0051] Figure 12B This is a cross-sectional schematic diagram of the working state of a camera module according to another embodiment of this application;

[0052] Figure 13A , 13B These are two exploded views of a retaining module according to another embodiment of this application. Detailed Implementation

[0053] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0054] The term "comprising" is open-ended. As used in the appended claims, it does not exclude additional structures or steps.

[0055] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0056] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0057] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0058] It should be noted that, as used in this application, the terms “basically,” “approximately,” and similar terms are used to indicate approximation rather than degree, and are intended to describe inherent deviations in measured or calculated values ​​that would be recognized by a person skilled in the art.

[0059] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection, a contact connection, or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] "Configured as" refers to various units, circuits, or other components that can be described or stated as being "configured as" to perform one or more tasks. In such a context, "configured as" is used to imply a structure by indicating that the unit / circuit / component includes a structure (e.g., a circuit) that performs this one or more tasks during operation. Furthermore, "configured as" can include a general structure (e.g., a general-purpose circuit) manipulated by software and / or firmware to operate in a manner capable of performing one or more tasks to be solved. "Configured as" can also include adjusting a manufacturing process (e.g., a semiconductor fabrication facility) to manufacture a device (e.g., an integrated circuit) suitable for implementing or performing one or more tasks.

[0061] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the specification and appended claims, the singular forms “a,” “an,” and “the” are intended to also cover the plural forms unless the context otherwise expressly indicates otherwise. It will also be understood that the term “and / or” as used herein refers to and covers any and all possible combinations of one or more of the items listed in connection with the description. It will also be understood that the terms “comprising” and / or “including” as used in this specification specify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0062] As used herein, depending on the context, the term "if" can be interpreted as meaning "when..." or "in response to determination" or "in response to detection". Similarly, depending on the context, the phrase "if it is determined..." or "if [the stated condition or event] is detected" can be interpreted as meaning "when it is determined..." or "in response to determination..." or "when [the stated condition or event] is detected" or "in response to detection".

[0063] Application Overview

[0064] As mentioned earlier, in order to achieve telephoto shooting functionality, the camera module needs to be equipped with a telephoto lens with a long focal length. This means that the overall size and height of the camera module capable of telephoto shooting are relatively large. Thus, it is difficult for the camera module to meet the requirements of small size and thinness while achieving telephoto shooting functionality.

[0065] To address this, some camera modules are designed to switch between extended and retracted states, thereby reducing the overall height of the camera module. However, current retractable camera modules have some drawbacks in autofocus, such as short focusing distance and low focusing accuracy.

[0066] Specifically, the camera module mainly uses a driver to control the distance between its optical lens and the photosensitive element, enabling the camera module to switch between extended and retracted states and achieve focusing. However, during the focusing process of the camera module, the current drivers used to drive the optical lens either provide insufficient driving force to meet the focusing stroke of the camera module, or achieve low focusing accuracy, making it difficult for the camera module to produce clear images.

[0067] However, due to the different working principles of various drivers, their operating principles and structures inherently possess some limitations. For example, a stepper motor is a driver that converts electrical pulse signals into angular or linear displacement. The working principle of a stepper motor is: upon receiving a single pulse signal, its rotor rotates by a unit angle or advances a unit distance. The unit angle and unit distance depend on the stepper motor's step angle (the step angle refers to the angle the rotor rotates for each pulse signal received). Although stepper motors can provide significant driving force and a long drive stroke, their operating principle and structure make it difficult to achieve highly precise driving.

[0068] Therefore, it seems difficult to solve the problems of short focusing stroke and low focusing accuracy by improving the driving performance of the driver. The inventors of this application considered that since the inherent defects of different drivers are difficult to avoid, the advantages of different drivers in driving performance can be used to improve the overall driving performance of the optical lens, so as to meet the focusing performance requirements of the telescopic camera module.

[0069] Based on this, this application proposes a camera module, which includes: a photosensitive component, a lens component, and a telescopic component. The lens component is held on the photosensitive path of the photosensitive component, and the telescopic component is configured to drive the lens component to move relative to the photosensitive component, so that the camera module switches between an operating state and an inactive state.

[0070] After introducing the basic principles of this application, various non-limiting embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0071] Exemplary camera module

[0072] like Figures 1A to 11C As shown, a camera module 1 according to an embodiment of this application is illustrated. The camera module 1 includes a lens assembly 10, a telescopic assembly 20, and a photosensitive assembly 30. The lens assembly 10 is held on the photosensitive path of the photosensitive assembly 30, and the telescopic assembly 20 is configured to drive the lens assembly 10 to move relative to the photosensitive assembly 30, so that the camera module 1 switches between a working state and a non-working state.

[0073] Optionally, this application defines the position where the distance between the lens assembly 10 and the photosensitive component 30 is the smallest as the retracted position, in which the lens assembly 10 is in a non-working state (also referred to as the retracted state, folded state, stored state, or retracted state, etc.). This application defines the position where the distance between the lens assembly 10 and the photosensitive component 30 is the largest as the extended position, in which the lens assembly 10 is in an extended state (also referred to as the pop-out state or extended state, etc.), and the camera module 1 is in a working state. Of course, the lens assembly 10 can also remain in a position between the extended position and the retracted position, that is, the lens assembly 10 can maintain its position during the extension process, which is also regarded as the intermediate extended position, and the camera module 1 works in the intermediate extended position, in which case the camera module 1 is in a working state. This application does not make a specific limitation on the number of intermediate extended positions, such as one intermediate extended position, three intermediate extended positions, etc., to realize that the camera module 1 can work in different working states at multiple focal lengths.

[0074] The lens assembly 10 has an optical axis. When the lens assembly 10 is not in operation, the distance between the lens assembly 10 and the photosensitive assembly 30 along the optical axis is small, and the total length of the camera module 1 is small, which makes it easier to store the camera module 1 in an electronic device with extremely limited space.

[0075] When the lens assembly 10 is in operation, the total optical length of the optical system formed by the lens assembly 10 and the photosensitive assembly 30 increases. This allows for a longer focal length in the optical design, which in turn improves the performance of the optical system and the optical bokeh effect beyond the depth of field. The optical bokeh effect produces a more realistic and stunning photo than the algorithmic bokeh effect because the optical bokeh effect varies entirely based on the distance of the actual scene and does not produce errors due to the complexity of the scene. Therefore, this embodiment of the application increases the focal length by designing the lens assembly 10 to be further away from the photosensitive assembly 30, thereby achieving a higher level of clarity and realism in the imaging effect.

[0076] like Figures 2A to 4As shown, in one embodiment of this application, the lens assembly 10 includes a lens driving module 12, an optical lens 11 mounted on the lens driving module 12, and an electrical connection assembly 13. The optical lens 11 is held on the light-sensing path of the photosensitive assembly 30 to receive imaging light from the target and to allow the imaging light to reach the photosensitive assembly 30 along the light-sensing path. The optical lens 11 has an optical axis, which is also the optical axis of the lens assembly 10. The optical lens 11 includes a lens group 111 and a lens barrel 112. The lens group 111 is housed in the lens barrel 112 along the optical axis direction. The photosensitive assembly 30 is disposed opposite to the optical lens 11 along the optical axis direction. The optical axis of the optical lens 11 is also the optical axis of the lens group 111, which is the axis passing through the geometric center point of the lens group 111 along the arrangement direction of the first lens. For ease of description, the side of the optical lens 11 facing the subject is called the object side, and the side of the optical lens 11 facing the photosensitive component 30 is called the image side. The optical axis direction includes the direction along the optical axis pointing towards the image side (hereinafter referred to as the image side direction) and the direction along the optical axis pointing towards the object side (hereinafter referred to as the object side direction).

[0077] The optical lens 11 is mounted on the lens drive module 12. The lens drive module 12 drives the optical lens 11 to translate in the Z-axis direction to adjust the distance between the optical lens 11 and the photosensitive component 30, thereby achieving optical focusing, and / or drives the optical lens 11 to translate in the X and Y-axis directions to achieve optical image stabilization. In this embodiment, the X and Y axes are perpendicular to each other, and the Z-axis is perpendicular to the plane containing the X and Y axes. In other words, the X, Y, and Z axes constitute a three-dimensional coordinate system. The XOY plane containing the X and Y axes is also called the horizontal plane, and the Z-axis is close to the direction of optical focusing / zoom or parallel to the optical axis. The electrical connection component 13 is electrically connected to the lens drive module 12 and the photosensitive component 30 to enable the circuit of the lens assembly 10.

[0078] like Figure 2A , Figure 2B as well as Figures 3A to 3CAs shown, the lens drive module 12 includes a fixed carrier 121, a movable carrier 122, and at least one lens drive unit 123. The fixed carrier 121 has a receiving cavity to accommodate the movable carrier 122 and the lens drive unit 123. The lens drive unit 123 is disposed between the fixed carrier 121 and the movable carrier 122, thereby adapting the lens drive unit 123 to drive the movable carrier 122 to move relative to the fixed carrier 121. The optical lens 11 is fixed to the movable carrier 122. Thus, by driving the movable carrier 122 to move relative to the fixed carrier 121 via the lens drive unit 123, the lens drive module 12 is adapted to drive the optical lens 11 to move. For example, the lens drive module 12 drives the optical lens 11 to move along its optical axis to achieve a focusing function; and / or, the lens drive module 12 drives the optical lens 11 to translate in a direction perpendicular to its optical axis or drives the optical lens 11 to rotate about a direction perpendicular to its optical axis to achieve an image stabilization function.

[0079] Furthermore, the lens driving module 12 also includes a suspension assembly 124 and a lens conductive assembly 125, which are housed within the receiving cavity of the fixed carrier 121. The suspension assembly 124 is disposed between the fixed carrier 121 and the movable carrier 122, and the movable carrier 122 is suspended in the fixed carrier 121 by the suspension assembly 124. The lens conductive assembly 125 provides driving power to the lens driving unit 123, enabling the lens driving unit 123 to drive the movable carrier 122 to move relative to the fixed carrier 121.

[0080] In some embodiments of this application, the lens driving module 12 further includes a lens position sensing component (not shown), which is used to acquire position information of the optical lens 11, thereby generating feedback on the process of the lens driving module 12 driving the optical lens 11 to move.

[0081] The mounting carrier 121 includes a top cover 1211 and a base 1212. The top cover 1211 and the base 1212 are interlocked to form a receiving cavity to accommodate the various components of the lens driving module 12, thereby protecting the components in the lens driving module 12 from damage due to impact and reducing the entry of dust, dirt, or stray light into the interior of the lens driving module 12. Furthermore, the top cover 1211 and the base 1212 are provided with openings corresponding to the optical lens 11, so that light reflected from an object can reach the photosensitive component 30 after passing through the optical lens 11.

[0082] The lens drive module 12 can be a voice coil motor, a piezoelectric motor, an SMA (shape memory alloy) motor, or other types of drive motors. When the lens drive module 12 is a voice coil motor, the lens drive unit 123 is a coil-magnet pair; when the lens drive module 12 is a piezoelectric motor, the lens drive unit 123 is a piezoelectric element; when the lens drive module 12 is an SMA motor, the lens drive unit 123 is an SMA wire. In one embodiment of this application, the lens drive module 12 is a voice coil motor, and the lens drive unit 123 is a coil-magnet pair. Specifically, as shown... Figures 3A to 3C As shown, the lens driving unit 123 includes at least one driving magnet 1231 and at least one driving coil 1232. The at least one driving magnet 1231 and at least one driving coil 1232 are arranged opposite to each other. When the driving coil 1232 is energized, it generates a magnetic field. By means of the magnetic force between the driving coil 1232 and the driving magnet 1231, the lens driving unit 123 drives the movable carrier 122 to move relative to the fixed carrier 121.

[0083] like Figure 3A In the illustrated embodiment, the lens driving module 12 includes a fixed carrier 121, a movable carrier 122, a lens driving unit 123, a lens conductive component 125, and a suspension component 124. The lens driving unit 123 of the lens driving module 12 includes at least one driving magnet 1231 and at least one driving coil 1232 disposed opposite to the at least one driving magnet 1231. The at least one driving magnet 1231 is fixed to the movable carrier 122, and the at least one driving coil 1232 is fixed to the fixed carrier 121. In other embodiments of this application, the at least one driving magnet 1231 may also be fixed to the fixed carrier 121, and the at least one driving coil 1232 may be disposed opposite to the at least one driving magnet 1231 and fixed to the movable carrier 122. In other words, at least one driving magnet 1231 is fixed to one of the movable carrier 122 or the fixed carrier 121, and at least one driving coil 1232 is disposed opposite to the at least one driving magnet 1231 and fixed to the other of the movable carrier 122 or the fixed carrier 121. In this application, the number of at least one driving magnet 1231 can be one, which is disposed on one side of the lens driving module 12. In other embodiments, the number of at least one driving magnet 1231 can also be multiple, and multiple driving magnets 1231 can be disposed on one or more sides of the lens driving module 12.

[0084] The lens conductive assembly 125 is electrically connected to at least one drive coil 1232, providing power to drive the at least one drive coil 1232. In a specific example, the lens conductive assembly 125 is fixed to the fixed carrier 121, and the at least one drive coil 1232 is fixed to the lens conductive assembly 125, thereby fixing the at least one drive coil 1232 to the fixed carrier 121.

[0085] The suspension assembly 124 includes at least three ball bearings 1241, which are disposed on both sides of the lens driving unit 123. The movable carrier 122 can be supported on the inner side of the fixed carrier 121 by the at least three ball bearings 1241, thereby achieving smooth sliding of the movable carrier 122. For example, under the drive of the lens driving unit 123, the movable carrier 122 is adapted to move relative to the fixed carrier 121 in the optical axis direction to achieve focusing. Further, the suspension assembly 124 also includes a magnetic attraction member (not shown), which is disposed on the fixed carrier 121 and attracts the driving magnet 1231 disposed on the movable carrier 122, thereby attracting the movable carrier 122 to the fixed carrier 121 by magnetic attraction. In other embodiments of this application, the suspension assembly 124 may also be a spring or a suspension wire, or other elements.

[0086] like Figure 3B In the illustrated embodiment, the lens driving module 12 includes a fixed carrier 121, a movable carrier 122, a lens driving unit 123, a lens conductive component 125, and a suspension component 124. The lens driving unit 123 includes at least two driving magnets 1231 and at least two driving coils 1232 disposed opposite to the at least two driving magnets 1231. The at least two driving magnets 1231 are fixed to the movable carrier 122, and the at least two driving coils 1232 are fixed to the fixed carrier 121. In other embodiments of this application, the at least two driving magnets 1231 may also be fixed to the fixed carrier 121, and the at least two driving coils 1232 may be disposed opposite to the at least two driving magnets 1231 and fixed to the movable carrier 122. In other words, at least two driving magnets 1231 are fixed to one of the movable carrier 122 or the fixed carrier 121, and at least two driving coils 1232 are arranged opposite to the at least two driving magnets 1231 and fixed to the other of the movable carrier 122 or the fixed carrier 121. In a specific example, there are two driving magnets 1231 and two driving coils 1232. The two driving magnets 1231 are arranged on adjacent sides of the lens drive module 12, and the two driving coils 1232 are arranged opposite to the two driving magnets 1231. Thus, the lens drive unit 123 can drive the movable carrier 122 to move relative to the fixed carrier 121 in a direction perpendicular to the optical axis, thereby achieving image stabilization.

[0087] The lens conductive assembly 125 is electrically connected to at least two drive coils 1232, providing power to drive the at least two drive coils 1232. In a specific example, the lens conductive assembly 125 is fixed to the fixed carrier 121, and the at least two drive coils 1232 are fixed to the lens conductive assembly 125, thereby fixing the at least two drive coils 1232 to the fixed carrier 121.

[0088] The suspension assembly 124 includes at least three ball bearings 1241, which are disposed between the bottom surface of the movable carrier 122 and the top surface of the fixed carrier 121. The movable carrier 122 is supported on the top surface of the fixed carrier 121 by the at least three ball bearings 1241, thereby realizing the smooth sliding of the movable carrier 122. For example, under the drive of the lens drive unit 123, the movable carrier 122 is adapted to move relative to the fixed carrier 121 in a direction perpendicular to the optical axis to achieve the image stabilization function.

[0089] like Figure 3C In the illustrated embodiment, the lens driving module 12 includes a fixed carrier 121, a movable carrier 122, a lens driving unit 123, a lens conductive component 125, and a suspension component 124. The movable carrier 122 includes a first movable carrier 1221 and a second movable carrier 1222, with the second movable carrier 1222 disposed inside the first movable carrier 1221. The optical lens 11 is fixed to the second movable carrier 1222. The lens driving unit 123 includes three driving magnets: a first driving magnet 1231a, a second driving magnet 1231b, and a third driving magnet 1231c, and three driving coils: a first driving coil 1232a, a second driving coil 1232b, and a third driving coil 1232c. The first driving magnet 1231a is fixed to the first movable carrier 1221. The driving coil 1232a is positioned opposite to the first driving magnet 1231a and fixed to the fixed carrier 121. The second driving magnet 1231b is fixed to the second movable carrier 1222. The second driving coil 1232b is positioned opposite to the second driving magnet 1231b and fixed to the first movable carrier 1221. The third driving magnet 1231c is positioned on the adjacent side of the second driving magnet 1231b and fixed to the second movable carrier 1222. The third driving coil 1232c is positioned opposite to the third driving magnet 1231c and fixed to the first movable carrier 1221.

[0090] The second driving magnet 1231b and the second driving coil 1232b drive the second movable carrier 1222 to move relative to the first movable carrier 1221 in a first direction perpendicular to the optical axis. The third driving magnet 1231c and the third driving coil 1232c drive the second movable carrier 1222 to move relative to the first movable carrier 1221 in a second direction perpendicular to both the optical axis and the first direction. This enables the lens driving module 12 to drive the optical lens 11 to achieve image stabilization. The first driving magnet 1231a and the second driving magnet 1231b drive the first movable carrier 1221 to move relative to the fixed carrier 121 along the optical axis, so that the second movable carrier 1222 moves together with the first movable carrier 1221 along the optical axis. This enables the lens driving module 12 to drive the optical lens 11 to achieve focusing.

[0091] The lens conductive assembly 125 includes three conductive units: a first conductive unit 1251, a second conductive unit 1252, and a third conductive unit 1253. The first conductive unit 1251 is electrically connected to the first driving coil 1232a and provides driving power to the first driving coil 1232a. The second conductive unit 1252 is electrically connected to the second driving coil 1232b and provides driving power to the second driving coil 1232b. The third conductive unit 1253 is electrically connected to the third driving coil 1232c and provides driving power to the third driving coil 1232c.

[0092] The suspension assembly 124 includes a first suspension component 1242 and a second suspension component 1243. The first suspension component 1242 includes at least three ball bearings 1241 disposed between a fixed carrier 121 and a first movable carrier 1221. The first movable carrier 1221 is supported on the inner side of the fixed carrier 121 by the first suspension component 1242, thereby reducing the frictional force when the first movable carrier 1221 moves relative to the fixed carrier 121 along the optical axis. The second suspension component 1243 includes at least three ball bearings 1241 disposed between the bottom surface of the second movable carrier 1222 and the top surface of the first movable carrier 1221. The second movable carrier 1222 is supported on the top surface of the first movable carrier 1221 by the second suspension component 1243, thereby reducing the frictional force when the second movable carrier 1222 moves relative to the first movable carrier 1221 in a plane perpendicular to the optical axis.

[0093] Furthermore, continue to refer to Figures 3A to 3C When the lens driving module 12 is a voice coil motor, at least one driving magnet 1231 and at least one driving coil 1232 opposite to the at least one driving magnet 1231 are used as the lens driving unit 123. The number of at least one driving coil 1232 may be the same as or different from the number of at least one driving magnet 1231, and this application is not limited thereto. In one embodiment of this application, at least one driving magnet 1231 is disposed on one side of the lens driving module 12, such as... Figure 3A As shown; in another embodiment of this application, at least two driving magnets 1231 are disposed on both sides of the lens driving module 12, as shown. Figure 3B As shown; in another embodiment of this application, at least three driving magnets 1231 are disposed on three sides of the lens driving module 12; of course, in other embodiments of this application, the number of at least one driving magnet 1231 may be greater than three, and at least four driving magnets 1231 may be disposed on four sides of the lens driving module 12. Thus, different functions of the lens driving module 12 can be achieved by different numbers and orientations of magnets.

[0094] like Figure 4 and Figure 9AAs shown, the lens assembly 10 also includes an electrical connection component 13, which electrically connects the lens drive module 12 and the circuit board 31, so that the lens drive module 12 can obtain drive power through the circuit board 31.

[0095] Specifically, the electrical connection assembly 13 is disposed between the lens drive module 12 and the circuit board 31. The electrical connection assembly 13 includes a first electrical connection part 131, which includes a first movable end 1311, a first fixed end 1313, and a first deformable part 1312 connecting the first movable end 1311 and the first fixed end 1313. The first deformable part 1312 is electrically connected to the first movable end 1311 and the first fixed end 1313. The first electrical connection part 131 is electrically connected to the lens drive module 12 through the first movable end 1311 and electrically connected to the circuit board 31 through the first fixed end 1313. The first electrical connection part 131 is fixed to the circuit board 31 through the first fixed end 1313, and the first electrical connection part 131 is fixed to the lens drive module 12 through the first movable end 1311. The first deformable part 1312 is made of a material suitable for deformation. When the lens drive module 12 is driven to move by the telescopic component 20, the first movable end 1311 moves with the movement of the lens drive module 12. The first deformable part 1312 between the first movable end 1311 and the first fixed end 1313 deforms, thereby reducing the resistance of the first electrical connection part 131 on the movement of the lens drive module 12, and the first electrical connection part 131 is not easily damaged during the movement of the lens drive module 12.

[0096] In one embodiment of this application, the first deformation portion 1312 is a bent flexible circuit board, thereby reducing the resistance of the first electrical connection portion 131 to the lens drive module 12 by increasing or decreasing the degree of bending of the first deformation portion 1312 during the movement of the lens drive module 12 relative to the circuit board 31. Thus, the first electrical connection portion 131 can be entirely composed of a flexible circuit board that is easy to bend; or it can be composed of a rigid-flex board that can only be bent partially.

[0097] Furthermore, the electrical connection assembly 13 also includes a second electrical connection portion 132. Specifically, the second electrical connection portion 132 is disposed between the lens drive module 12 and the circuit board 31. The second electrical connection portion 132 includes a second movable end 1321, a second fixed end 1323, and a second deformable portion 1322 connecting the second movable end 1321 and the second fixed end 1323. The second deformable portion 1322 is electrically connected to the second movable end 1321 and the second fixed end 1323. The second electrical connection portion 132 is electrically connected to the lens drive module 12 through the second movable end 1321 and to the circuit board 31 through the second fixed end 1323. The second electrical connection part 132 is fixed to the circuit board 31 via the second fixed end 1323, and the second electrical connection part 132 is fixed to the lens drive module 12 via the second movable end 1321. The second deformable part 1322 is made of a material suitable for deformation. When the lens drive module 12 is driven to move by the telescopic component 20, the second movable end 1321 moves with the movement of the lens drive module 12. The second deformable part 1322 between the second movable end 1321 and the second fixed end 1323 deforms, thereby reducing the resistance of the second electrical connection part 132 on the movement of the lens drive module 12, and the second electrical connection part 132 is not easily damaged during the movement of the lens drive module 12.

[0098] In one embodiment of this application, the second deformable portion 1322 is a bent flexible circuit board, thereby reducing the resistance of the second electrical connection portion 132 to the lens drive module 12 by increasing or decreasing the degree of bending of the second deformable portion 1322 during the movement of the lens drive module 12 relative to the circuit board 31. Thus, the second electrical connection portion 132 can be entirely composed of a flexible circuit board that is easily bent; or it can be composed of a rigid-flex board that can only be bent partially.

[0099] In one embodiment of this application, the first electrical connection portion 131 and the second electrical connection portion 132 are respectively disposed on both sides of the lens driving module 12, thereby reducing the number of circuits that need to be connected between the lens driving module 12 and the circuit board 31 in the first electrical connection portion 131. As the width of the first electrical connection portion 131 increases, the resistance of the first electrical connection portion 131 to the movement of the lens driving module 12 increases sharply. By adding the second electrical connection portion 132, the width of the first electrical connection portion 131 can be designed to be narrower, especially the first deformable portion 1312 connecting the first movable end 1311 and the first fixed end 1313 can be designed to be narrower. In this way, the resistance of the first electrical connection portion 131 to the movement of the lens driving module 12 can be further reduced. Similarly, for similar reasons, the width of the second electrical connection portion 132 can also be designed to be narrower, that is, the widths of both the first electrical connection portion 131 and the second electrical connection portion 132 can be designed to be narrower.

[0100] In a specific example, the first electrical connection 131 and the second electrical connection 132 are disposed on opposite sides of the lens driving module 12. For example, the first electrical connection 131 is disposed on the second side 102 of the lens driving module 12, and the second electrical connection 132 is disposed on the fourth side 104 of the lens driving module 12.

[0101] like Figure 2A and Figure 2B As shown, in one embodiment of this application, the photosensitive component 30 includes a circuit board 31, a photosensitive chip 32 electrically connected to the circuit board 31, and at least one electronic component (not shown). The photosensitive chip 32 is used to receive external light collected by the lens assembly 10 to form an image and is electrically connected to an external mobile electronic device through the circuit board 31. In one embodiment of this application, the electronic component can be one or more of passive electronic devices such as resistors and capacitors, and active electronic devices such as driver chips and memory chips. The electronic component can be electrically connected to the front or back of the circuit board 31, depending on the design requirements of the camera module 1. The photosensitive chip 32 is directly or indirectly fixed to the circuit board 31. The photosensitive chip 32 includes a photosensitive area and a non-photosensitive area. The photosensitive chip 32 is electrically connected to the circuit board 31 through chip pads located in the non-photosensitive area.

[0102] In one embodiment of this application, the circuit board 31 can be implemented as a printed circuit board (PCB), a reinforced flexible printed circuit (FPC), or a rigid-flex board. The circuit board 31 includes a circuit board body 311, a connecting strip 312, and a connector 313. The connecting strip 312 connects and electrically conducts the circuit board body 311 and the connector 313, thereby transmitting the imaging information acquired by the circuit board body 311 from the photosensitive chip 32 to an external mobile electronic device via the connector 313. For ease of description, the camera module 1 includes a first side 101, a second side 102, a third side 103, and a fourth side 104 in a clockwise direction. In a specific example of this application, the connecting strip 312 is disposed on the fourth side 104 of the camera module 1.

[0103] The reinforced flexible circuit board includes a stacked flexible circuit board and a reinforcing plate 314 disposed below the flexible circuit board. The reinforcing plate 314 can be implemented as a steel sheet, which can not only strengthen the flexible circuit board but also improve the heat dissipation performance of the photosensitive component 30. In a specific example, the circuit board body 311 also has a recessed circuit board through hole 3110. The reinforcing plate 314 is fixed to the lower surface of the circuit board body 311 by means of, for example, adhesive bonding. The reinforcing plate 314 and the circuit board body 311 form a mounting cavity to accommodate the photosensitive chip 32, thereby avoiding the influence of the thickness of the circuit board body 311 on the thickness of the photosensitive component 30 and reducing the height of the camera module 1.

[0104] Furthermore, the photosensitive assembly 30 also includes a filter element 33, which is held on the photosensitive path of the photosensitive chip 32 to filter incident light entering the photosensitive chip 32. In a specific example, the photosensitive assembly 30 also includes a filter element holder 34, to which the filter element 33 is mounted and fixed, corresponding to at least the photosensitive area of ​​the photosensitive chip 32. The filter element 33 can be attached upright or upside down to the filter element holder 34. The filter element holder 34 has a light-transmitting hole, so that incident light passing through the lens assembly 10 can pass through the light-transmitting hole of the filter element holder 34 and enter the photosensitive chip 32.

[0105] In particular, such as Figures 5 to 10B As shown, in one embodiment of this application, the telescopic component 20 is configured to drive the camera module 1 to switch between a working state and a non-working state. When the camera module 1 is in the working state, the lens assembly 10 is driven to move along the object-side direction, at which time the lens assembly 10 is driven to extend; when the camera module 1 is in the non-working state, the lens assembly 10 is driven to move along the image-side direction, at which time the lens assembly 10 is driven to retract to its original position, thereby reducing the overall height of the camera module 1. It can be understood that when the camera module 1 is in the working state, the focal plane of the optical lens 11 is located on the imaging surface of the photosensitive chip 32, and when the camera module 1 is in the non-working state, the focal plane of the optical lens 11 is located on the image side of the imaging surface of the photosensitive chip 32.

[0106] More specifically, the telescopic component 20 drives the lens assembly 10 to move linearly. This linear movement can be along the image-side direction, the object-side direction, or an inclined direction intersecting the optical axis (as long as it has a certain motion component along the optical axis), thereby causing the lens assembly 10 to move relative to the photosensitive component 30 along the optical axis. Optionally, the telescopic component 20 drives the lens assembly 10 to move unidirectionally along the image-side direction, unidirectionally along the object-side direction, or reciprocating between the image-side and object-side directions. When the telescopic component 20 drives the lens assembly 10 to move linearly, the lens assembly 10 causes the optical lens 11 to move closer to or further away from the photosensitive component 30 along the optical axis. This change in distance between the lens assembly 10 and the photosensitive component 30 enables optical focusing of the camera module 1, improving the imaging quality of the camera module 1.

[0107] It should be noted that the lens assembly 10 moves in a straight line under the drive of the telescopic assembly 20. The straight line movement process is simple and can efficiently transmit the power generated by the telescopic assembly 20 to the lens assembly 10. It also has the characteristics of simple drive structure and high drive force transmission efficiency.

[0108] like Figure 5 and Figure 6A As shown, in one embodiment of this application, the telescopic assembly 20 includes a housing 21, a pop-out module 22, a telescopic drive module 23, and a sleeve module 24. The housing 21 has a receiving cavity that accommodates the pop-out module 22, the telescopic drive module 23, the sleeve module 24, and other components of the telescopic assembly 20. The sleeve module 24 connects to the lens assembly 10, and the connection method includes, but is not limited to, a fixed connection or a movable connection. Fixed connections include, but are not limited to, welding, screwing, snap-fitting, and bonding. Movable connections include, but are not limited to, the sleeve module 24 and the lens assembly 10 abutting in one direction, where the direction is not limited to the image side or the object side. The pop-out module 22 cooperates with the telescopic drive module 23 to drive the sleeve module 24 and the lens assembly 10 to extend, retract, or reciprocate in a single stroke.

[0109] Specifically, in one embodiment of this application, the camera module 1 drives the optical lens 11 to move through two drive modules with different driving advantages to meet the optical performance requirements of the camera module 1. Specifically, the telescopic drive module 23 is selected from drivers capable of generating a large drive stroke to meet the focusing stroke requirements of the camera module 1; the lens drive module 12 is selected from drivers with high driving precision to meet the focusing precision and / or optical image stabilization requirements of the camera module 1, thereby improving the imaging quality of the camera module 1.

[0110] In a specific example of this application, the telescopic drive module 23 is implemented as a stepper motor 2311, and the lens drive module 12 is implemented as a voice coil motor. It should be understood that the telescopic drive module 23 can also be other types of drivers capable of providing a long drive stroke, such as piezoelectric motors; this is not limited to this application. Similarly, the lens drive module 12 can also be other types of drivers with high drive precision, such as shape memory alloy motors; this is also not limited to this application. For ease of explanation and understanding, this application uses the example of the telescopic drive module 23 being implemented as a stepper motor 2311 and the lens drive module 12 being implemented as a voice coil motor to describe the camera module 1 of this embodiment.

[0111] like Figure 5 As shown, the pop-up module 22 and the telescopic drive module 23 are configured to drive the camera module 1 to switch between a working state and a non-working state. When the camera module 1 is in a non-working state, the lens assembly 10 is driven by the telescopic drive module 23 to move linearly toward the image side, and the distance between the lens assembly 10 and the photosensitive assembly 30 along the optical axis decreases; when the camera module 1 is in a working state, the lens assembly 10 is driven by the pop-up module 22 to move linearly toward the object side, and the distance between the lens assembly 10 and the photosensitive assembly 30 along the optical axis increases.

[0112] Furthermore, when the camera module 1 is in operation, the pop-up module 22 and the telescopic drive module 23 cooperate with each other. Under the action of the pop-up module 22, the lens assembly 10 moves towards the object side to achieve initial focusing of the camera module 1. The lens drive module 12 drives the optical lens 11 to continue moving along the optical axis and / or along a direction perpendicular to the optical axis to achieve precise focusing and / or optical image stabilization of the camera module 1. It can be understood that, in this application, initial focusing refers to the lens drive module 12 and the optical lens 11 moving together along the optical axis to a first position under the action of the pop-up module 22, so that the image sensor 32 can form an image. Precise focusing refers to the lens drive module 12 adjusting the distance between the optical lens 11 and the image sensor 32 according to the change in focus, and the optical lens 11 moving along the optical axis to a second position, so that the subject remains in sharp focus.

[0113] like Figure 6A ,and Figure 6BAs shown, in one embodiment of this application, the housing 21 includes a cover 211 and a base 212, wherein the cover 211 and the base 212 can be interlocked to form a receiving cavity to accommodate various components of the camera module 1 (including but not limited to the pop-up module 22, the telescopic drive module 23, and the holding module 26). This not only protects the various components of the camera module 1 from falling off or being damaged due to external impact, but also prevents dust, dirt, etc. from entering the interior of the camera module 1. The base 212 includes a base body 2121 and a base structural member 2122, wherein the base structural member 2122 is disposed on the base body 2121 to reinforce the strength of the base body 2121. In a specific example of this application, the base structural member 2122 is integrally formed on the base body 2121 by an insert molding process, which not only reinforces the strength of the base body 2121, but also prevents an increase in the height of the base 212. Of course, in another specific example of this application, the base structure 2122 can also be fixed to the base body 2121 by other means such as bonding or welding, and this application does not limit this. In this application, the base 212 is fixed to the circuit board 31 of the photosensitive component 30. For example, in a specific example of this application, the circuit board 31 is upside down against the bottom surface of the base body 2121 to fix the base 212 and the circuit board 31 together. It should be understood that in this application, both the cover 211 and the base 212 are fixed parts or relatively fixed parts, that is, when the telescopic component 20 is working, the cover 211 and the base 212 remain stationary.

[0114] like Figure 5 , Figures 7A to 7B As shown, in one embodiment of this application, the pop-up module 22 is disposed between the lens assembly 10 and the photosensitive assembly 30. The pop-up module 22 is disposed on the image side of the lens assembly 10, and the lens assembly 10 is driven by the pop-up module 22 to move linearly toward the object side. The pop-up module 22 includes a support base 221 and an elastic member 222. The support base 221 is fixed to the photosensitive assembly 30. Specifically, the support base 221 is disposed on the circuit board 31 of the photosensitive assembly 30, and the circuit board 31 supports the support base 221. One end of the elastic member 222 is connected to the support base 221, and the other end of the elastic member 222 is connected to the lens assembly 10. That is, the elastic member 222 is clamped between the support base 221 and the lens assembly 10, and the lens assembly 10 is driven by the pop-up module 22 to move toward the object side of the optical axis.

[0115] like Figure 7AAs shown, in one embodiment of this application, the elastic member 222 may include at least one spring 2221, which can push the lens assembly 10 toward the movable sleeve 241 of the sleeve module 24. For example, in a specific example of this application, the elastic member 222 includes four springs 2221, which are respectively disposed at the four corners of the support base 221 to provide a more stable force on the lens assembly 10 and avoid tilting when the lens assembly 10 is moved by the elastic force of the elastic member 222. Of course, in another specific example of this application, the elastic member 222 may also include one spring 2221, two springs 2221, three springs 2221, etc., and this application is not limited in this regard. It is understood that the elastic member 222 may also be other elastic structures, such as spring sheets, and this application is not limited in this regard.

[0116] The sleeve module 24 is fixed to the telescopic drive module 23, and the sleeve module 24 is driven by the telescopic drive module 23 to move along the optical axis. When the camera module 1 is not in operation, the telescopic drive module 23 drives the sleeve module 24 to move along the optical axis toward the image side. The sleeve module 24 abuts against the lens assembly 10 and generates a contact force. Under the action of the contact force, the lens assembly 10 moves along the optical axis toward the image side, and the distance between the lens assembly 10 and the photosensitive component 30 decreases. The elastic member 222 is compressed between the lens assembly 10 and the support base 221, and the elastic force of the elastic member 222 is stored. When the camera module 1 is in operation, the telescopic drive module 23 drives the sleeve module 24 to move along the optical axis toward the object side, and the contact force between the sleeve module 24 and the lens assembly 10 disappears. At this time, the elastic force generated when the elastic member 222 is compressed is released, and the lens assembly 10 moves along the optical axis toward the object side under the action of the elastic force. The distance between the lens assembly 10 and the photosensitive component 30 increases, and the elastic member 222 is extended between the lens assembly 10 and the support base 221.

[0117] In one embodiment of this application, the support base 221 has at least one spring receiving groove 2211 disposed at its corner. The position and number of the at least one spring receiving groove 2211 correspond to the position and number of at least one spring 2221. One end of the at least one spring 2221 is disposed in the at least one spring receiving groove 2211. When the at least one spring 2221 is compressed, it can be compressed into the at least one spring receiving groove 2211, so that the distance between the lens assembly 10 and the photosensitive assembly 30 along the optical axis is minimized. In a specific example of this application, the number of spring receiving grooves 2211 is four, respectively disposed at the four corners of the support base 221.

[0118] In one embodiment of this application, the support base 221 further includes a base body 2212 and a support member 2213. In a specific example of this application, the support member 2213 is integrally formed on the base body 2212 by insert molding. In another specific example of this application, the support member 2213 is fixed to the base body 2212 by means of adhesive, welding, fitting, etc., so as to increase the strength of the base body 2212 through the support member 2213.

[0119] Specifically, the base body 2212 has a spring through hole 22120, and the support member 2213 includes a support portion 22131 and a connecting portion 22132, wherein the spring through hole 22120 and the support portion 22131 form the spring receiving groove 2211. That is, the support portion 22131 of the support member 2213 is exposed within the spring through hole 22120 of the base body 2212, and the spring 2221 is supported and fixed by the support portion 22131 of the support member 2213. It can be understood that the position and number of the spring through hole 22120 and the support portion 22131 correspond to the position and number of the spring 2221. In a specific example of this application, there are four spring through holes 22120 and four support portions 22131, which are respectively arranged at the four corners of the support base 221. The connecting portion 22132 of the support member 2213 connects to the support portion 22131 of the support member 2213 to enhance the strength of the base body 2212.

[0120] More specifically, in one embodiment of this application, the support portion 22131 of the support member 2213 further includes a support protrusion 221311, which extends integrally from the support portion 22131 toward the object side. The outer diameter of the support protrusion 221311 is smaller than the aperture of the elastic member 222, so that the support protrusion 221311 can extend into the elastic member 222 to prevent horizontal displacement when the elastic member 222 is compressed.

[0121] like Figure 7AAs shown, in one embodiment of this application, the lens driving module 12 further includes at least one protrusion 12122 formed on the substrate 1212. The at least one protrusion 12122 extends from the substrate 1212 toward the image side and is opposite to at least one spring receiving groove of the pop-up module 22. At least one spring 2221 is sleeved on the at least one protrusion 12122 and abuts against the base. The arrangement of the protrusion 12122 can reduce the degree of deformation of the spring 2221 in the direction perpendicular to the extension and retraction during the extension and retraction process. The number of at least one protrusion 12122 is the same as the number of at least one spring 2221. In a specific example of this application, the number of at least one protrusion 12122 is four. The four protrusions 12122 extend downward from the four corners of the substrate 1212 and are opposite to the four spring 2221 receiving grooves 2211 of the support base 221. The four springs 2221 are respectively sleeved on the four protrusions 12122 and abut against the substrate 1212 and the support base 221.

[0122] like Figure 7B As shown, in another embodiment of this application, the elastic member 222 may include a pair of opposing magnetic members 2222, wherein one of the magnetic members 2222 is disposed on the support base 221, and the other magnetic member 2222 is disposed on the lens assembly 10, and the two magnetic members 2222 repel each other. When the camera module 1 is in a non-working state, the telescopic drive module 23 drives the sleeve module 24 to move along the optical axis toward the image side. The sleeve module 24 abuts against the lens assembly 10. Under the action of the abutting force, the lens assembly 10 moves along the optical axis toward the image side. The distance between the lens assembly 10 and the photosensitive component 30 decreases, the distance between the pair of magnetic elements 2222 decreases, and the repulsive force between the pair of magnetic elements 2222 increases. When the camera module 1 is in a working state, the telescopic drive module 23 drives the sleeve module 24 to move along the optical axis toward the object side. The abutting force between the sleeve module 24 and the lens assembly 10 disappears. At this time, the lens assembly 10 moves along the optical axis toward the object side under the action of the repulsive force between the pair of magnetic elements 2222. The distance between the lens assembly 10 and the photosensitive component 30 increases.

[0123] Furthermore, in this embodiment, there are two pairs of magnetic elements 2222, each pair of which is respectively disposed on the support base 221 and the lens assembly 10, and each pair of magnetic elements 2222 repels each other. Of course, it is understood that there may be three or four pairs of magnetic elements 2222, etc., and this application does not limit this, in order to provide a more stable force on the lens assembly 10 and avoid tilting when the lens assembly 10 is moved by the elastic force of the elastic member 222.

[0124] like Figure 5 , Figure 6A , Figure 6B and9A As shown, in one embodiment of this application, the telescopic drive module 23 is disposed on the base 212. Specifically, the telescopic drive module 23 is disposed on the first side 101 of the camera module 1, that is, the telescopic drive module 23 and the connecting strip 312 of the circuit board 31 are disposed on opposite sides. In a specific example of this application, the telescopic drive module 23 is disposed on the side of the base 212 located on the first side 101 to provide sufficient placement space for the photosensitive component 30.

[0125] In one embodiment of this application, the telescopic drive module 23 includes a drive component 231 and a transmission component 232. The drive component 231 is used to generate driving force, and the transmission component 232 connects the drive component 231 and the sleeve module 24 to transmit the driving force generated by the drive component 231 to the sleeve module 24, and then to the lens assembly 10.

[0126] Specifically, in one embodiment of this application, the transmission mechanism includes a gear device 2322 coupled to the power output end of the drive assembly 231, a transmission screw 2323 meshing with the gear device 2322, and a transmission part 2324 meshing with the transmission screw 2323. The transmission part 2324 is tractably coupled to the sleeve module 24. The gear device 2322 includes at least one gear coupled to the power output end of the drive assembly 231 and coupled to the transmission screw 2323. It is understood that the number of gears in the gear device 2322 is not limited by this application.

[0127] Furthermore, the transmission screw 2323 is provided with an external thread, and the transmission part 2324 is provided with an internal thread. The external thread of the transmission screw 2323 and the internal thread of the transmission part 2324 mesh with each other. When the stepper motor 2311 receives an electrical pulse signal, at least one gear in the gear device 2322 coupled to the drive assembly 231 rotates accordingly. The rotated at least one gear drives the transmission screw 2323 to rotate, which in turn drives the transmission part 2324 meshing with the transmission screw 2323 to move, thereby driving the sleeve module 24 coupled to the transmission part 2324 to move. In this way, the driving force of the drive assembly 231 is transmitted to the sleeve module 24 to drive the sleeve module 24 to move along the optical axis towards the image side or towards the object side.

[0128] It should be understood that, in one embodiment of this application, as Figure 6BAs shown, the transmission part 2324 has a threaded hole formed therein, and the transmission screw 2323 is tractably coupled into the threaded hole. When the transmission screw 2323 rotates, it drives the transmission part 2324 to move along the optical axis, and drives the sleeve module 24 coupled to the transmission part 2324 to move along the optical axis. Since the transmission screw 2323 and the transmission part 2324 are connected by a thread, the telescopic component 20 can achieve a self-locking function. That is, when the transmission screw 2323 rotates, it can drive the transmission part 2324 to move along the optical axis; when the transmission screw 2323 stops rotating, the transmission part 2324 also stops moving. Due to the presence of the thread, the transmission part 2324 will not continue to move due to sliding friction, thereby keeping the transmission part 2324 in a stable position. Consequently, the sleeve module 24 can be stably maintained at the corresponding height, realizing the self-locking function of the telescopic component 20.

[0129] In a specific example of this application, the transmission part 2324 further includes a connector 23241 extending into the sleeve module 24. The transmission part 2324 is coupled to the sleeve module 24 through the connector 23241. In this application, the connection method between the connector 23241 and the sleeve module 24 includes, but is not limited to, fitting, bonding, welding, etc. It is worth mentioning that in this specific example, the transmission screw 2323 and the transmission part 2324 are made of the same material. For example, the transmission screw 2323 and the transmission part 2324 are made of metal or plastic. When the transmission part 2324 moves relative to the transmission screw 2323, the inner wall of the threaded hole of the transmission screw 2323 and the transmission part 2324 rub against each other. Different materials have different wear resistance and hardness, and are prone to generating debris during mutual friction. However, the transmission screw 2323 and the transmission part 2324 are made of the same material, which can avoid the generation of debris during friction.

[0130] In one embodiment of this application, the transmission assembly 232 further includes a protective member 2321, which has a receiving cavity to accommodate the gear device 2322, the transmission screw 2323, and the transmission part 2324. Alternatively, the protective member 2321 covers the gear device 2322, the transmission screw 2323, and the transmission part 2324 to protect them.

[0131] like Figures 8A to 8CAs shown, the sleeve module 24 includes a movable sleeve 241, a sleeve transmission component 243, and a limiting carrier 242. The sleeve transmission component 243 and the limiting carrier 242 are respectively fixed to the movable sleeve 241, and the fixing method can be bonding, welding, screwing, snap-fitting, integral molding, etc. In one embodiment of this application, the sleeve transmission component 243 and the limiting carrier 242 are respectively fixed to both ends of the movable sleeve 241, wherein the sleeve transmission component 243 is fixed to the image side (i.e., the side closer to the photosensitive component 30) of the movable sleeve 241, and the limiting carrier 242 is fixed to the object side (i.e., the side away from the photosensitive component 30) of the movable sleeve 241. The sleeve module 24 is fixed to the telescopic drive module 23 through the sleeve transmission component 243.

[0132] From the object side to the image side, the movable sleeve 241 includes a sleeve top 2411, a sleeve connecting portion 2412, a sleeve step, and a sleeve bottom 2414. The sleeve top 2411, sleeve connecting portion 2412, sleeve step, and sleeve bottom 2414 are interconnected and fixed to form a receiving cavity for the movable sleeve 241. The sleeve transmission component 243 and the limiting carrier 242 are accommodated and fixed in the movable sleeve 241. In a specific example of this application, the sleeve top 2411, sleeve connecting portion 2412, sleeve step, and sleeve bottom 2414 are connected by an integral molding process.

[0133] Continue to refer to Figure 8BThe sleeve step portion 2413 and the sleeve bottom portion 2414 are interconnected to form a transmission component mounting cavity 24140. The sleeve transmission component 243 is installed in the transmission component mounting cavity 24140. For example, the sleeve transmission component 243 is installed in the transmission component mounting cavity 24140 formed by the interconnection of the sleeve step portion 2413 and the sleeve bottom portion 2414 by fixing it to the sleeve step portion 2413 or the sleeve bottom portion 2414. The sleeve top portion 2411 and the sleeve connecting portion 2412 are interconnected to form a lens assembly receiving cavity 24120. The lens assembly 10 is received in the lens assembly receiving cavity 24120. There is an air gap between the lens assembly receiving cavity 24120 and the lens assembly 10, so that the lens assembly 10 can move in the lens assembly receiving cavity 24120. The lens assembly receiving cavity 24120 and the transmission component mounting cavity 24140 are interconnected to form a receiving cavity for the movable sleeve 241. The lens assembly receiving cavity 24120 is located on the object side of the transmission component mounting cavity 24140. The transmission component mounting cavity 24140 has a larger radial dimension than the lens assembly receiving cavity 24120. Therefore, in addition to accommodating the lens assembly 10 and allowing it to move within it, the transmission component mounting cavity 24140 can also accommodate other components such as the sleeve transmission component 243. The sleeve step portion 2413 is connected and fixed to the sleeve connecting portion 2412. The outer surface of the sleeve step portion 2413 forms the sleeve step surface 24131 of the sleeve step portion 2413, which faces the top surface of the cover 211. It should be noted that in this application, the radial dimension refers to the dimension in the direction perpendicular to the optical axis of the optical lens 11 of the lens assembly 10.

[0134] The top 2411 and bottom 2414 of the sleeve each have a through hole, so that the lens assembly 10 can obtain the light reflected by the object on the object side through the through hole of the top 2411 of the sleeve, and transmit the converged light to the photosensitive assembly 30 on the image side through the through hole of the bottom 2414 of the sleeve.

[0135] Continue to refer to Figure 6B and Figure 8AThe sleeve drive component 243 is fixedly connected to the transmission part 2324 of the transmission assembly 232 by means of bonding, welding, screwing, snap-fitting, or integral molding, thereby the telescopic drive module 23 drives the sleeve module 24 to move through the fixed relationship between the transmission part 2324 and the sleeve drive component 243. In one embodiment of this application, the sleeve drive component 243 can be made of metal, thereby providing strong structural strength. In a specific example of this application, the sleeve drive component 243 has a ring-shaped structure, which surrounds the periphery of the lens assembly 10. The sleeve drive component 243 has a connecting hole 2431 and at least one guide rod through hole 2430. The sleeve drive component 243 is fixed to the transmission part of the transmission part 2324 through the connecting hole 2431, thereby the sleeve module 24 is fixed to the telescopic drive module 23 through the sleeve drive component 243. The function of the at least one guide rod through hole 2430 will be further described later.

[0136] Continue to refer to Figures 7A to 8B The limiting carrier 242 is housed in the lens assembly receiving cavity 24120, positioned between the top of the sleeve 2411 and the lens assembly 10. The limiting carrier 242 has at least one limiting image side 24220, which faces the lens driving module 12, thereby adapting the limiting carrier 242 to abut against the lens driving module 12 via the at least one limiting image side 24220. In one embodiment of this application, the orthographic projection of the at least one limiting image side 24220 along the optical axis at least partially overlaps with the orthographic projection of the lens driving module 12 along the optical axis.

[0137] The limiting carrier 242 includes a carrier body 2421 and at least one limiting protrusion 2422 and a cover plate support 2423 fixed to the carrier body 2421. The at least one limiting protrusion 2422 extends from the carrier body 2421 toward the image side, and a limiting image side 24220 is formed on the image side of the limiting protrusion 2422. The cover plate support 2423 extends inward from the carrier body 2421, and the light-transmitting cover plate 40 is fixed to the cover plate support 2423. It should be noted that the fixing method includes, but is not limited to, bonding, welding, or integral molding.

[0138] In one embodiment of this application, the limiting protrusion 2422 protrudes from the image side of the carrier body 2421, thereby limiting the carrier 242 to abut against the lens assembly 10 via the limiting protrusion 2422; the cover plate support 2423 protrudes from the inner side of the carrier body 2421, and the cover plate support 2423 is used to support the light-transmitting cover plate 40 further included in the camera module 1, that is, the light-transmitting cover plate 40 is fixed to the limiting carrier 242 by fixing it to the cover plate support 2423. Figure 2A , Figure 2B and Figure 7BAs shown, a light-transmitting cover plate 40 covers the optical lens 11. The light-transmitting cover plate 40 has a cover plate image side 400, which faces the optical lens 11. The light-transmitting cover plate 40 is used to protect the lens assembly 10 and is suitable for transmitting light used for imaging. The distance between the cover plate image side 400 and the limiting image side 24220 is greater than the height of the optical lens 11 protruding from the lens drive module 12 (i.e., the distance between the cover plate image side 400 and the limiting image side 24220 is greater than the distance between the top surface of the optical lens 11 and the top surface of the upper cover 1211). Therefore, when the limiting carrier 242 abuts against the top surface of the lens drive module 12, there is an air gap between the cover plate image side 400 of the light-transmitting cover plate 40 and the top surface of the optical lens 11 to avoid impact. In one specific example, the distance between the cover plate image side 400 and the limiting image side 24220 is at least 0.15 mm greater than the height of the optical lens 11 protruding from the lens drive module 12, thereby providing the distance by which the lens drive module 12 drives the optical lens 11 to move along the optical axis to the object side.

[0139] The limiting protrusion 2422 restricts the height of the lens assembly 10. When the limiting protrusion 2422 abuts against the lens assembly 10, there is a certain air gap between the optical lens 11 and the light-transmitting cover plate 40, preventing collision between them. Specifically, during the extension or retraction of the lens assembly 10, the limiting carrier 242 can abut against the upper cover 1211 of the lens drive module 12 through the limiting protrusion 2422, preventing collision between the optical lens 11 and the light-transmitting cover plate 40. For example, in the non-working state, the sleeve module 24 abuts against the upper cover 1211 of the lens drive module 12 through the limiting protrusion 2422 of the limiting carrier 242, preventing the lens assembly 10 from moving towards the object side. It should be noted that the limiting carrier 242 does not necessarily have to be in contact with the lens assembly 10 at all times. The limiting carrier 242 can be in contact with the lens assembly 10 at all times, or it can be in contact with the lens assembly 10 for part of the time. This depends on the structural design of the telescopic component 20. However, the setting of the limiting protrusion 2422 can effectively protect the optical lens 11 from impacting the light-transmitting cover plate 40. In one embodiment of this application, the limiting carrier 242 includes four limiting protrusions 2422 and has four limiting image sides 24220. The four limiting protrusions 2422 protrude from the carrier body 2421 with the same length, and the four limiting image sides 24220 have the same height. Thus, when the limiting protrusions 2422 abut against the lens assembly 10, the lens assembly 10 is kept horizontally positioned.

[0140] Continue to refer to Figure 8BIn the non-working state, the bottom surface of the lens assembly 10 is lower than the bottom surface of the sleeve module 24, so that the lens assembly 10 can be as close as possible to the photosensitive component 30 in the non-working state, thereby reducing the height of the camera module 1.

[0141] like Figure 8C As shown, in another embodiment of this application, the limiting carrier 242 further includes at least one pressing portion 2424, which extends from the carrier body 2421 toward the image side and is fixed to the carrier body 2421 by means of, for example, bonding or integral molding. The upper cover 1211 of the lens drive module 12 has at least one pressing opening 12110 corresponding to the at least one pressing portion 2424. The size of the pressing opening 12110 is larger than the size of the pressing portion 2424, so that the at least one pressing portion 2424 is adapted to extend toward the movable carrier 122 through the pressing opening 12110. When the camera module 1 is not in operation, the telescopic drive module 23 drives the sleeve module 24 to move towards the image side. The sleeve module 24 abuts against the upper cover 1211 of the lens drive module 12 through at least one limiting protrusion 2422 of the limiting carrier 242, and at least one pressing part 2424 abuts against the movable carrier 122 of the lens drive module 12, thereby restricting the movable carrier 122 from moving towards the object side and preventing the optical lens 11 from colliding with the light-transmitting cover plate 40. In a specific example, the limiting carrier 242 includes four pressing parts 2424 extending from the carrier body 2421 towards the image side. The upper cover 1211 of the lens drive module 12 has four pressing openings 12110 corresponding to the four pressing parts 2424. The size of the four pressing openings 12110 is larger than the size of the corresponding four pressing parts 2424, so that the four pressing parts 2424 are adapted to extend into the movable carrier 122 through the pressing openings 12110.

[0142] In one embodiment of this application, at least one pressing part 2424 extends toward the first movable carrier 1221 of the movable carrier 122 fixed to the optical lens 11, and abuts against the first movable carrier 1221 when the sleeve module 24 moves toward the image side, thereby restricting the first movable carrier 1221 from moving toward the object side and preventing the optical lens 11 from colliding with the light-transmitting cover plate 40.

[0143] Further reference Figures 2A to 2B ,and Figures 9A to 9BThe telescopic component 20 also includes a fixing component 252 and a retaining module 26. The fixing component 252 is fixed to the photosensitive component 30. It is understood that the fixing component 252 can be directly fixed to the photosensitive component 30 or indirectly fixed to it. In a specific example of this application, the fixing component 252 is fixed to the support base 221 by, for example, adhesive bonding, and the support base 221 is fixed to the photosensitive component 30 by, for example, adhesive bonding; that is, the fixing component 252 is fixed to the support base 221 and thus indirectly fixed to the photosensitive component 30. The retaining module 26 is disposed on one side of the lens assembly 10. The retaining module 26 includes a first retaining member 261 and a second retaining member 262. The first retaining member 261 is fixed to one of the fixing assembly 252 and the lens assembly 10, and the second retaining member 262 is fixed to the other of the fixing assembly 252 and the lens assembly 10. The force (magnetic attraction or magnetic repulsion) generated between the first retaining member 261 and the second retaining member 262 holds the lens assembly 10 to one side of the telescopic assembly 20. In one specific example of this application, the first retaining member 261 is disposed on the lens assembly 10, and the second retaining member 262 is disposed on the fixing assembly 252. The second retaining member 262 is disposed opposite to the first retaining member 261. In one specific example of this application, the first retaining member 261 and the second retaining member 262 can attract each other to generate a force perpendicular to the optical axis (magnetic attraction); in another specific example of this application, the first retaining member 261 and the second retaining member 262 can repel each other to generate a force perpendicular to the optical axis (magnetic repulsion).

[0144] Specifically, in one embodiment of this application, the height of the first retaining member 261 is smaller than the height of the second retaining member 262, that is, the height of the second retaining member 262 is greater than the height of the first retaining member 261, so that when the lens assembly 10 is driven by the telescopic assembly 20, the force between the first retaining member 261 and the second retaining member 262 can be maintained to a greater extent.

[0145] More specifically, in one embodiment of this application, the first holding member 261 includes a magnet portion 2611, and the second holding member 262 includes a yoke portion 2621 disposed opposite to the magnet portion 2611. The magnet portion 2611 and the yoke portion 2621 magnetically attract each other to generate a force (magnetic attraction force) perpendicular to the optical axis. The magnet 2611 is fixed to one of the lens assembly 10 or the fixing assembly 252, and the yoke 2621 is fixed to the other of the lens assembly 10 or the fixing assembly 252. The magnet 2611 and the yoke 2621 are magnetically attracted to each other, thereby keeping the module 26 holding the lens assembly 10 on one side of the telescopic assembly 20 by magnetic attraction. In this way, when the camera module 1 is assembled, the position of the lens assembly 10 can remain stable during the alignment of the lens assembly 10 and the photosensitive assembly 30. When the lens assembly 10 is driven to move by the telescopic assembly 20, the lens assembly 10 is less likely to wobble relative to the telescopic assembly 20, reducing the offset of the optical axis of the lens assembly 10 relative to the center of the photosensitive assembly 30, so that the lens assembly 10 is aligned with the photosensitive assembly 30 during the movement along the optical axis. In one embodiment of this application, the first retaining member 261 further includes a magnetically conductive portion 2612. The magnetically conductive portion 2612 is fixed to the side of the magnet portion 2611 away from the yoke portion 2621, that is, the magnet portion 2611 is disposed between the yoke portion 2621 and the magnetically conductive portion 2612. The magnetically conductive portion 2612 is adapted to enhance the magnetic field of the magnet portion 2611 facing the yoke portion 2621, thereby increasing the magnetic attraction between the magnet portion 2611 and the yoke portion 2621. In this application, the yoke portion 2621 can be a component that can be attracted by a magnet, such as an iron sheet.

[0146] In one embodiment of this application, the direction of the magnetic attraction force generated between the magnet portion 2611 and the yoke portion 2621 is perpendicular to the optical axis direction, and the magnetic attraction force keeps the lens assembly 10 on one side of the telescopic assembly 20; in another embodiment of this application, the angle between the direction of the magnetic attraction force generated between the magnet portion 2611 and the yoke portion 2621 and the optical axis direction is an acute angle, and the component of the magnetic attraction force perpendicular to the optical axis direction keeps the lens assembly 10 on one side of the telescopic assembly 20.

[0147] In one embodiment of this application, in the moving direction of the lens assembly 10 (i.e., in the optical axis direction), the height dimension of the yoke portion 2621 is greater than the height dimension of the magnet portion 2611, so that when the lens assembly 10 is driven by the telescopic component 20, the magnetic attraction between the magnet portion 2611 and the yoke portion 2621 can be maintained at a greater level. Furthermore, in the moving direction of the lens assembly 10, the height dimension of the yoke portion 2621 is greater than or equal to the sum of the height of the magnet portion 2611 and the moving stroke of the lens assembly 10, so that when the lens assembly 10 is driven by the telescopic component 20, the magnetic attraction between the magnet portion 2611 and the yoke portion 2621 can be maintained at its maximum.

[0148] In a specific example of this application, the magnet portion 2611 is fixed to the lens assembly 10, and the yoke portion 2621 is fixed to the fixing component 252. This way, the lens assembly 10 only needs to leave a small space for the magnet portion 2611, and the size of the magnet portion 2611 does not need to be large. Therefore, the driving force required for the telescopic component 20 to move the lens assembly 10 is not excessive. Specifically, the lens drive module 12 of the lens assembly 10 has a magnet groove 12121 formed on the base 1212 of the fixing carrier 121. The magnet portion 2611 is fixed in the magnet groove 12121, opposite to the yoke portion 2621 fixed to the fixing component 252. By placing the magnet part 2611 in the magnet groove 12121, the size of the camera module 1 is reduced; the fixing component 252 includes a yoke mounting part 2523, the yoke part 2621 is fixed to the yoke mounting part 2523, and the yoke mounting part 2523 can be a groove to reduce the overall size of the camera module 1.

[0149] In another specific example of this application, the magnet part 2611 is fixed to the fixing component 252, and the magnetic yoke part 2621 is fixed to the lens assembly 10, so that the driving force required for the telescopic component 20 to drive the lens assembly 10 to move is not too large.

[0150] It should be noted that when the lens drive module 12 is a voice coil motor, regardless of whether the magnet part 2611 is fixed to the lens assembly 10 or the fixing component 252, the magnet part 2611 is preferably disposed on the side of the lens assembly 10 where the drive magnet 1231 is not disposed. In other words, the magnet part 2611 and at least one drive magnet 1231 of the lens assembly 10 are disposed on different sides of the lens assembly 10, that is, at least one drive magnet 1231 and the first holding component 261 (holding module 26) are disposed on different sides of the lens assembly. For example, the magnet part 2611 is fixed to the first side 101 of the lens assembly 10, while at least one drive magnet 1231 is disposed on at least one of the second side 102, the third side 103, and the fourth side 104 of the lens assembly 10. If the magnet part 2611 is disposed on the same side as at least one drive magnet 1231, the magnetic field of the magnet part 2611 will affect the operation between the drive magnet 1231 and the drive coil 1232. In a specific example of this application, the magnet part 2611 is fixed to the lens drive module 12, and at least one drive magnet 1231 and the magnet part 2611 are disposed on different sides of the lens assembly 10.

[0151] Further reference Figures 9A to 9BThe telescopic assembly 20 also includes a support module 27, which is located between the lens assembly 10 and the fixing assembly 252 to reduce the frictional force experienced by the lens assembly 10 during movement. The support module 27 is disposed on one side of the lens assembly 10, and the retaining module 26 is disposed on one side of the lens assembly 26. The retaining module 26 generates a force perpendicular to the optical axis so that the lens assembly 10 is supported by the support module 27 against the fixing assembly 252 during linear movement. That is, the lens assembly 10 is supported by the support module 27 against the fixing assembly 252. The retaining module 26 and the support module 27 are located on the same side or opposite side of the lens assembly 10, and the support module 27 is clamped between the lens assembly 10 and the fixing assembly 252. In one embodiment of this application, the support module 27 and the holding module 26 (first holding member 261 and second holding member 262) are disposed on the same side of the lens assembly 10. The support module 27 is clamped between the lens assembly 10 and the fixing component 252 by the magnetic attraction between the magnet part 2611 and the yoke part 2621.

[0152] In one embodiment of this application, the support module 27 includes at least three ball bearings 271 disposed between the lens assembly 10 and the fixing component 252, wherein the lens assembly 10 is supported on the fixing component 252 by the at least three ball bearings 271. Further, the support module 27 also includes at least one inner ball bearing groove 272 formed on the outer surface of the lens assembly 10 and at least one outer guide rail 273 formed on the inner surface of the fixing component 252, wherein the at least one inner ball bearing groove 272 and the at least one outer guide rail 273 are disposed opposite to each other and clamp the at least three ball bearings 271. In a specific example, the inner ball bearing groove 272 is formed on the outer surface of the fixing carrier 121 of the lens drive module 12.

[0153] In one specific embodiment of this application, at least one outer guide rail 273 includes a first guide rail 2731 and a second guide rail 2732, at least one inner ball groove 272 includes a first ball groove 2721, a second ball groove 2722, a third ball groove 2723 and a fourth ball groove 2724, and at least three balls include a first ball 2711, a second ball 2712, a third ball 2713 and a fourth ball 2714. The first guide rail 2731 and the second guide rail 2732 are formed on the inner side of the fixing assembly 252 and distributed on both sides of the magnetic yoke 2621. The first ball groove 2721 and the second ball groove 2722 are disposed opposite to the first guide rail 2731, and the third ball groove 2723 and the fourth ball groove 2724 are disposed opposite to the second guide rail 2732. The first ball 2711 is disposed in the first ball groove 2721, the second ball 2712 is disposed in the second ball groove 2722, the third ball 2713 is disposed in the third ball groove 2723, and the fourth ball 2714 is disposed in the fourth ball groove 2724. The extending direction of the first guide rail 2731 and the second guide rail 2732 is parallel to the moving direction of the lens assembly 10. The lens assembly 10 moves along the optical axis through the first guide rail 2731 and the second guide rail 2732.

[0154] In one embodiment of this application, at least three balls 271 are fixed in at least one inner ball groove 272, and the at least three balls 271 slide relative to at least one outer guide rail 273. In another embodiment of this application, the at least three balls 271 can be replaced by at least three sliders, which are formed on the outer surface of the lens assembly 10 and opposite to the at least one outer guide rail 273. The lens assembly 10 is supported on the fixing component 252 by the at least three sliders, and the sliding of the at least three sliders on the at least one outer guide rail 273 reduces frictional resistance.

[0155] like Figure 10A , Figure 10B As shown, in order to limit the maximum extension stroke of the lens assembly 10 and reduce the risk of the lens assembly 10 colliding with the sleeve module 24 under the drive of the pop-out module 22 when the sleeve module 24 is in the maximum extension state, the telescopic assembly 20 also includes a stop module 25, which can limit the extension distance of the lens assembly 10.

[0156] The stop module 25 includes a fixed component 252 and a stop movable component 251. The fixed component 252 is fixed to the support base 221 by means of, for example, adhesive bonding, thereby being fixed to the photosensitive component 30. The stop movable component 251 is fixed to at least one side of the lens assembly 10 and moves with the movement of the lens assembly 10. Through the abutment between the stop movable component 251 and the fixed component 252, the movement of the stop movable component 251 toward the object side is blocked, thereby limiting the further extension of the lens assembly 10, limiting the travel of the lens assembly 10 toward the object side, and limiting the driving travel of the pop-up module 22. In one embodiment of this application, the stop movable component 251 extends outward (i.e., away from the optical axis) from the fixed carrier 121 of the lens drive module 12.

[0157] Specifically, the stop movable component 251 includes at least one stop extension 2511, which extends integrally outward (i.e. away from the optical axis) from the base 1212 of the lens drive module 12, and the at least one stop extension 2511 protrudes from the base 1212; the fixing component 252 includes a fixing upper part 2521 and a fixing lower part 2522, which are fixed together by means of, for example, bonding, welding, fitting, integral molding, etc., and the fixing lower part 2522 is fixed to the support base 221 by means of, for example, bonding. The upper fixed portion 2521 has at least one stop surface 25210, which is not covered by the lower fixed portion 2522. At least one stop extension 2511 is stopped by the upper fixed portion 2521 of the fixing assembly 252 by abutting against the at least one stop surface 25210, thereby limiting the extension stroke of the lens assembly 10.

[0158] In one embodiment of this application, at least one stop extension 2511 and the magnet portion 2611 are not located on the same side of the lens assembly 10, and at least one stop surface 25210 is not located on the same side of the fixing assembly 252 as the magnetic yoke mounting portion 2523. In other words, when the magnet portion 2611 of the retaining module 26 is disposed on the first side 101 of the lens assembly 10, at least one stop extension 2511 is disposed on one, two, or three sides of the second side 102, third side 103, and fourth side 104 of the lens assembly 10. That is, the retaining module 26 and the stop movable assembly 251 are disposed on different sides of the lens assembly 10, thereby reducing interference between the retaining module 26 and the stop movable assembly 251.

[0159] In one embodiment of this application, in at least one direction perpendicular to the optical axis, the inner diameter of the upper fixing portion 2521 is smaller than the inner diameter of the lower fixing portion 2522, thereby exposing at least one stop surface 25210 of the upper fixing portion 2521, which is adapted to abut against at least one stop extension 2511. In one example, the fixing component 252 has a stepped outer surface.

[0160] In one embodiment of this application, the lower fixing portion 2522 has at least one stop groove 25221, the number of stop grooves 25221 is the same as the number of stop extension portions 2511. By providing the stop grooves 25221, the bottom surface of the upper fixing portion 2521 is not covered by the lower fixing portion 2522 to form at least one stop surface 25210 of the upper fixing portion 2521.

[0161] In one specific embodiment of this application, the number of stop extension portions 2511 is three. These three stop extension portions 2511 extend integrally outward (i.e., away from the optical axis) from the second side 102, third side 103, and fourth side 104 of the base 1212 of the lens drive module 12. At this time, the magnet portion 2611 of the retaining module 26 is disposed on the first side 101 of the lens drive module 12. The retaining module 26 and the three stop extension portions 2511 are disposed on different sides of the lens assembly to prevent interference and reduce the overall size of the camera module. The fixing lower portion 2522 has three stop grooves 25221 located on the second side 102, third side 103, and fourth side 104, respectively, so that the bottom surface of the fixing upper portion 2521 is not covered by the fixing lower portion 2522 on the second side 102, third side 103, and fourth side 104, forming three stop surfaces 25210. The extension stroke of the lens drive module 12 is limited by the three stop surfaces 25210 of the fixing component 252 stopping the three stop extensions 2511 respectively.

[0162] It is understood that in one embodiment of this application, the driving stroke of the pop-up module 22 is less than the driving stroke of the telescopic driving module 23. That is, the stroke by which the pop-up module 22 pushes the lens assembly 10 to move is less than the stroke by which the telescopic driving module 23 drives the sleeve module 24 to move. This arrangement leaves a certain gap between the lens assembly 10 and the sleeve module 24, thereby providing a certain space for the lens driving module 12 to drive the optical lens 11 to translate along the Z-axis and / or along the X and Y axes. This not only meets the requirements of the camera module 1 for telephoto but also meets the requirements of the camera module 1 for focusing accuracy and / or optical image stabilization. The drive stroke of the pop-up module 22 is less than that of the telescopic drive module 23, which makes the sleeve module 24 extend a longer distance relative to the lens assembly 10. As a result, when the camera module 1 is in the working state, the gap between the light-transmitting cover plate 40 and the optical lens 11 of the lens assembly 10 is larger than that in the non-working state. Thus, in the working state, the telescopic component 20 provides more space for the lens drive module 12 of the lens assembly 10, making it less likely for the lens drive module 12 to collide with the light-transmitting cover plate 40 when driving the optical lens 11 to focus along the optical axis. Correspondingly, when the camera module 1 is in the non-working state, the distance between the light-transmitting cover plate 40 and the optical lens 11 can be designed to be smaller, so that the height of the camera module 1 can be designed to be smaller in the non-working state.

[0163] Specifically, when the camera module 1 is in a non-working state, the telescopic drive module 23 drives the sleeve module 24 to move along the optical axis toward the image side. The sleeve module 24 abuts against the lens drive module 12 of the lens assembly 10. Under the action of the abutment force, the lens drive module 12 moves along the optical axis toward the image side. The elastic member 222 is compressed under the action of the lens drive module 12. At this time, the elastic force of the elastic member 222 is accumulated. The stop movable component 251 of the stop module 25 moves along the optical axis toward the image side. At this time, the stop movable component 251 and the fixed component 252 of the stop module 25 are separated from each other.

[0164] When the camera module 1 is in working state, the telescopic drive module 23 drives the sleeve module 24 to move along the optical axis toward the object side. The contact force between the sleeve module 24 and the lens assembly 10 disappears. At this time, the elastic force generated when the elastic member 222 is compressed is released. Under the action of the elastic force, the lens drive module 12 moves along the optical axis toward the object side. The stop movable component 251 of the stop module 25 moves along the optical axis toward the object side. When the stop movable component 251 and the fixed component 252 of the stop module 25 abut against each other, the fixed component 252 restricts the movement stroke of the stop movable component 251, so that the stop movable component 251 cannot continue to move, thus restricting the drive stroke of the pop-up module 22. Furthermore, the telescopic drive module 23 continues to drive the sleeve module 24 to move along the optical axis toward the image side, so that a certain gap is generated between the sleeve module 24 and the lens drive module 12, so as to allow sufficient travel for the lens drive module 12 to drive the optical lens 11 to translate along the Z-axis and / or along the X and Y axes.

[0165] More specifically, in one embodiment of this application, when the camera module 1 is in a non-working state, the drive component 231 of the telescopic drive module 23 drives the transmission component 232 to move along the optical axis toward the image side. The transmission component 232 drives the sleeve module 24 to move along the optical axis toward the image side. During this process, the limiting protrusion 2422 of the limiting carrier 242 of the sleeve module 24 and the upper cover 1211 of the fixing carrier 121 of the lens drive module 12 are always in contact. The contact force on the lens drive module 12 is directed toward the image side. The elastic member 222 is compressed under the action of the lens drive module 12. At this time, the elastic force of the elastic member 222 is accumulated. The stopping movable component 251 of the stopping module 25 moves along the optical axis toward the image side, that is, the stopping movable component 251 of the stopping module 25 moves toward the fixed upper part 2521 away from the fixed component 252 of the stopping module 25. At this time, the stopping movable component 251 and the fixed upper part 2521 are separated from each other.

[0166] When the camera module 1 is in working condition, the drive component 231 of the telescopic drive module 23 drives the transmission component 232 to move along the optical axis toward the object side. The transmission component 232 drives the sleeve module 24 to move along the optical axis toward the object side. During this process, the contact force between the limiting protrusion 2422 of the limiting carrier 242 of the sleeve module 24 and the upper cover 1211 of the fixing carrier 121 of the lens drive module 12 disappears. At this time, the elastic force generated when the elastic member 222 is compressed is released, and the lens drive module 12 moves in the direction of the elastic component 222. Under the action of force, it moves along the optical axis toward the object side. The stop movable component 251 of the stop module 25 also moves along the optical axis toward the object side under the action of elastic force. That is, the stop movable component 251 of the stop module 25 moves toward the fixed upper part 2521 of the fixed component 252 of the stop module 25. When the stop movable component 251 and the fixed upper part 2521 come into contact with each other, the movement of the stop movable component 251 is blocked by the fixed upper part 2521, so that the stop movable component 251 cannot continue to move. Furthermore, the drive component 231 of the telescopic drive module 23 continues to drive the transmission component 232 to move along the optical axis toward the object side. The transmission component 232 continues to drive the sleeve module 24 to move along the optical axis toward the object side, so that a certain gap is generated between the limiting protrusion 2422 of the limiting carrier 242 of the sleeve module 24 and the upper cover 1211 of the fixing carrier 121 of the lens drive module 12, so as to provide sufficient travel for the lens drive module 12 to drive the optical lens 11 to translate along the Z-axis and / or along the X and Y axes. In one embodiment of this application, when the sleeve module 24 moves to the farthest travel in the object side direction, the gap between the light-transmitting cover plate 40 and the optical lens 11 is the largest. At this time, the gap is greater than or equal to 0.5 mm, thereby providing a sufficiently large movement space for the lens drive module 12 to drive the optical lens 11 to move along the optical axis toward the object side.

[0167] In one embodiment of this application, in order to ensure that the sleeve module 24 moves smoothly under the drive of the telescopic drive module 23, the telescopic assembly 20 further includes a guide module 28. The guide module 28 can be used to guide the sleeve module 24 to move along the optical axis towards the image side or towards the object side. When the drive screw 2323 rotates, the drive part 2324 coupled to the drive screw 2323 drives the sleeve module 24 to not only move along the optical axis, but also to rotate around the drive screw 2323. The guide module 28 can further be used to prevent the sleeve module 24 from rotating around the drive screw 2323.

[0168] like Figure 5 and Figure 6AAs shown, in one embodiment of this application, the guide module 28 includes a first guide member 281 and a second guide member 282. The first guide member 281 is adjacent to the transmission screw 2323 and is mainly used to guide the movement direction of the sleeve module 24. The second guide member 282 is disposed opposite to the first guide member 281 and is mainly used to prevent the sleeve module 24 from rotating during movement. The first guide member 281 and the second guide member 282 work together to guide the sleeve module 24 to move smoothly along the optical axis. One end of the first guide member 281 can be fixed to the base 212 and the other end can be fixed to the outer shell. Similarly, one end of the second guide member 282 can be fixed to the base 212 and the other end can be fixed to the outer shell. This arrangement ensures that the first guide member 281 and the second guide member 282 will not shake during the guidance process.

[0169] It is understood that, in one embodiment of this application, the transmission part 2324 further has a guide through hole 23240, and the first guide member 281 is disposed through the guide through hole 23240. The transmission part 2324 moves along the first guide member 281 through the guide through hole 23240 to guide the movement direction of the sleeve module 24. Furthermore, the second guide member 282 is disposed through the guide rod through hole 2430 of the sleeve transmission member 243 to prevent the sleeve module 24 from rotating during movement.

[0170] In one embodiment of this application, the number of the first guide member 281 is at least one, and the at least one first guide member 281 is disposed near the transmission screw 2323 so that the structure of the telescopic assembly 20 is more compact; the number of the second guide member 282 is at least one, and the at least one second guide member 282 is disposed at the corner of the base 212. In a specific example of this application, the number of the second guide member 282 is three, which are disposed at the three corners of the base 212 respectively.

[0171] like Figure 5 , Figure 6A and Figure 8BAs shown, in one embodiment of this application, the telescopic assembly 20 further includes a sealing member 29, which connects the fixed cover 211 and the movable sleeve 241. The sealing member 29 includes a first sealing fixing part 291, a second sealing fixing part 293, and a folding part 292 disposed between the first sealing fixing part 291 and the second sealing fixing part 293. The first sealing fixing part 291 is fixed to the cover 211, the second sealing fixing part 293 is fixed to the movable sleeve 241 of the sleeve module 24, and the folding part 292 connects the first sealing fixing part 291 and the second sealing fixing part 293. When the camera module 1 is in the working state, the movable sleeve 241 moves towards the object side under the drive of the telescopic module, causing the folding part 292 to be in a retracted state; when the camera module 1 is in the non-working state, the movable sleeve 241 moves towards the image side under the drive of the telescopic module, causing the folding part 292 to be in a stretched state.

[0172] To allow the folded portion 292 of the seal 29 to extend and retract more flexibly, the folded portion 292 is made of a flexible material, such as rubber. The materials used to make the first sealing fixing portion 291 and the second sealing fixing portion 293 may be the same as or different from the materials used to make the folded portion 292, and this is not limited to the present application.

[0173] In one specific example of this application, the first sealing fixing part 291 and the second sealing fixing part 293 are made of flexible materials, meaning the entire sealing element 29 is made of flexible materials. For example, the first sealing fixing part 291, the second sealing fixing part 293, and the folding part 292 can all be made of rubber. Specifically, an integral rubber sealing element 29 can be formed through injection molding, resulting in a simpler structure. In another specific example of this application, the first sealing fixing part 291 and the second sealing fixing part 293 are made of materials with higher hardness. For example, the first sealing fixing part 291 and the second sealing fixing part 293 are made of metal, and the folding part 292 is made of rubber. This satisfies the requirements for the flexibility of the sealing element 29's expansion and contraction, and also improves the stability of the connection between the sealing element 29, the movable sleeve 241, and the cover 211.

[0174] It is worth mentioning that, in one embodiment of this application, the sealing element 29, the cover 211 and the movable sleeve 241 are connected to each other to form a sealed space. The telescopic component 20 and the lens component 10 of the camera module 1 are both disposed in the sealed space. That is, the sealing element 29 is used to seal the camera module 1 to achieve the effect of waterproofing and dustproofing.

[0175] It is worth mentioning that the cover 211 further includes a vent 2110, which is formed on the side wall of the cover 211. The vent 2110 can connect the inside and outside of the camera module 1. During the switching between the working state and the non-working state of the camera module 1, gas can enter and exit the camera module 1 through the vent 2110 to keep the internal and external air pressure of the camera module 1 consistent. In one embodiment of this application, the housing 21 further includes a vent 213, which covers the vent 2110 of the cover 211. When gas enters and exits the camera module 1, the vent 213 can filter the gas to prevent dust, particles and other impurities in the gas from entering the camera module 1. In a specific example of this application, the vent 213 can be implemented as a breathable membrane 2131.

[0176] like Figures 11A to 11C As shown, this application provides another embodiment of a camera module 1, in which the photosensitive component 30 protrudes from the telescopic component 20, that is, the bottom surface of the photosensitive component 30 and the bottom surface of the telescopic component 20 have a certain height difference, or in other words, the plane where the circuit board 31 of the photosensitive component 30 is located has a certain height difference from the plane where the base 212 of the telescopic component 20 is located. In a specific example of this application, the photosensitive component 30 extends toward the image side, and when viewed along the optical axis, the bottom surface of the photosensitive component 30 is lower than the bottom surface of the telescopic component 20, or in other words, the plane where the circuit board 31 of the photosensitive component 30 is located is lower than the plane where the base 212 of the telescopic component 20 is located. When the camera module 1 is configured in a mobile electronic device (e.g., a smartphone), by protruding the photosensitive component 30 from the telescopic component 20, the downward-extending portion of the camera module 1 can extend into the motherboard (not shown) of the mobile electronic device, so that the photosensitive component 30 can pass through the motherboard of the mobile electronic device, such as a mobile phone, without occupying the height space of the telescopic component 20, thereby reducing the height dimension of the camera module 1 protruding from the surface of the mobile electronic device and reducing the thickness dimension of the electronic device.

[0177] Specifically, please refer to Figure 11A The circuit board 31 of the photosensitive component 30 is indirectly fixed to the housing 21 of the telescopic component 20. In a specific example of this application, the photosensitive component 30 is indirectly fixed to the base 212 of the telescopic component 20 via the stop module 25 and the pop-out module 22, to satisfy the structure of the photosensitive component 30 protruding from the telescopic component 20. Specifically, the base 212 of the housing 21 is fixedly connected to the fixing component 252 of the stop module 25, the fixing component 252 of the stop module 25 is fixed to the support base 221 of the pop-out module 22, and the circuit board 31 of the photosensitive component 30 is fixedly connected to the support base 221 of the pop-out module 22. In this way, the circuit board 31 of the photosensitive component 30 is indirectly fixed to the base 212 of the housing 21.

[0178] Furthermore, looking along the optical axis, the height of the photosensitive component 30 relative to the base 212 of the housing 21 decreases, which in turn causes the height of the sleeve module 24, the stop module 25, and the pop-out module 22 of the telescopic component 20 relative to the base 212 to also decrease further. As mentioned above, the sleeve module 24, the stop module 25, and the pop-out module 22 are directly or indirectly disposed on the circuit board 31 of the photosensitive component 30, and the height of the sleeve module 24, the stop module 25, and the pop-out module 22 changes with the height of the photosensitive component 30. This configuration allows the movable sleeve 241 of the sleeve module 24 to retract more when the camera module 1 is not in operation. In other words, the movable sleeve 241 protrudes less from the cover 211, and the distance between the top surface of the sleeve 2411 and the top surface of the cover 211 is smaller. This not only reduces the height of the camera module 1 protruding from the surface of the mobile electronic device when it is not in operation, but also makes the mobile electronic device (e.g., a smartphone) equipped with the camera module 1 more aesthetically pleasing.

[0179] like Figure 11B and Figure 11C As shown, in one embodiment of this application, in at least one direction perpendicular to the optical axis, the radial dimension of the photosensitive component 30 is smaller than the radial dimension of the telescopic component 20. That is, the radial dimension of the downwardly extending portion of the camera module 1 is smaller than the maximum outer diameter of the telescopic module. When the camera module 1 is configured in a mobile electronic device (e.g., a smartphone), the smaller radial dimension of the photosensitive component 30 compared to the radial dimension of the telescopic component 20, i.e., the smaller radial dimension of the downwardly extending portion of the camera module 1, allows for a smaller opening at the corresponding location on the motherboard of the mobile electronic device, enabling a larger working area on the motherboard for setting circuitry.

[0180] More specifically, in a specific example of this application, the radial dimension of the circuit board body 311 of the circuit board 31 of the photosensitive component 30 in two directions perpendicular to the optical axis (e.g., the X-axis and Y-axis directions) is smaller than the radial dimension of the telescopic component 20 in two directions perpendicular to the optical axis (e.g., the X-axis and Y-axis directions). The photosensitive component 30 can extend downward and pass through the motherboard of the mobile electronic device, thereby reducing the height dimension of the camera module 1 protruding from the surface of the mobile electronic device.

[0181] Figure 12A and Figure 12B , Figure 13A and Figure 13BThe illustration shows a camera module 1 in another embodiment of this application. The structure of the camera module 1 can be referred to above. Unlike the above embodiments, the holding module 26 includes a first holding member 261 and a second holding member 262. The first holding member 261 is disposed on the lens assembly 10, and the second holding member 262 is disposed on the fixing assembly 252. In one specific example of this application, the first holding member 261 and the second holding member 262 can attract each other to generate a force perpendicular to the optical axis (magnetic attraction); in another specific example of this application, the first holding member 261 and the second holding member 262 can repel each other to generate a force perpendicular to the optical axis (magnetic repulsion).

[0182] Specifically, in one embodiment of this application, the height of the first retaining member 261 is smaller than the height of the second retaining member 262, that is, the height of the second retaining member 262 is greater than the height of the first retaining member 261, so that when the lens assembly 10 is driven by the telescopic assembly 20, the force between the first retaining member 261 and the second retaining member 262 can be maintained to a greater extent.

[0183] More specifically, in one embodiment of this application, the first holding member 261 includes a first magnet portion 2613, and the second holding member 262 includes a second magnet portion 2622 disposed opposite to the first magnet portion 2613. The first magnet portion 2613 and the second magnet portion 2622 repel each other magnetically, generating a force (magnetic repulsion force) perpendicular to the optical axis. The first magnet 2613 is fixed to one of the lens assembly 10 or the fixing assembly 252, and the second magnet 2622 is fixed to the other of the lens assembly 10 or the fixing assembly 252. The first magnet 2613 and the second magnet 2622 repel each other, thereby holding the lens assembly 10 to one side. Thus, during the assembly of the camera module 1, the position of the lens assembly 10 remains stable during the alignment of the lens assembly 10 and the photosensitive assembly 30. When the lens assembly 10 is driven to move by the telescopic assembly 20, the lens assembly 10 is less likely to wobble relative to the telescopic assembly 20, reducing the offset of the optical axis of the lens assembly 10 relative to the center of the photosensitive assembly 30, and ensuring that the lens assembly 10 is aligned with the photosensitive assembly 30 during movement along the optical axis. In one embodiment of this application, the magnetic poles of the opposing surfaces of the first magnet 2613 and the second magnet 2622 are the same. In other words, the holding module 26 holds the lens assembly 10 on the side opposite to the telescopic assembly 20 and the holding module 26 through magnetic repulsion.

[0184] In one embodiment of this application, the direction of the magnetic repulsion force generated between the first magnet portion 2613 and the second magnet portion 2622 is perpendicular to the optical axis direction, and the magnetic repulsion force causes the lens assembly 10 to be held on one side of the telescopic assembly 20; in another embodiment of this application, the angle between the direction of the magnetic repulsion force generated between the first magnet portion 2613 and the second magnet portion 2622 and the optical axis direction is an acute angle, and the component of the magnetic repulsion force perpendicular to the optical axis direction causes the lens assembly 10 to be held on one side of the telescopic assembly 20.

[0185] Furthermore, in one embodiment of this application, the first retaining member 261 further includes a first magnetically conductive portion 2614, and the second retaining member 262 further includes a second magnetically conductive portion 2623. The first magnetically conductive portion 2614 is disposed on the side of the first magnetic portion 2613 away from the second magnetic portion 2622, i.e., the first magnetic portion 2613 is disposed between the second magnetic portion 2622 and the first magnetically conductive portion 2614; the second magnetically conductive portion 2623 is disposed on the side of the second magnetic portion 2622 away from the first magnetic portion 2613, i.e., the second magnetic portion 2622 is disposed between the first magnetic portion 2613 and the second magnetically conductive portion 2623. The first magnetically conductive portion 2614 and the second magnetically conductive portion 2623 are adapted to enhance the magnetic field in the opposite direction of the first magnetic portion 2613 and the second magnetic portion 2622, thereby enhancing the magnetic repulsion between the first magnetic portion 2613 and the second magnetic portion 2622. In another embodiment of this application, the retaining module 26 may include only the first magnetic part 2614 or only the second magnetic part 2623, and this application does not limit this.

[0186] It is understood that, in one embodiment of this application, the first magnet portion 2613 and the second magnet portion 2622 have different height dimensions in the moving direction (i.e., the optical axis direction) of the lens assembly 10. For example, in a specific example of this application, the second magnet portion 2622 is disposed on the fixing component 252, and the first magnet portion 2613 is disposed on the lens assembly 10. The height dimension of the second magnet portion 2622 is greater than the height dimension of the first magnet portion 2613. Therefore, when the lens assembly 10 is driven by the telescopic component 20, the magnetic repulsion force between the first magnet portion 2613 and the second magnet portion 2622 can be maintained more strongly, and the size and weight of the first magnet portion 2613 fixed to the lens assembly 10 can be designed to be smaller. Furthermore, in the moving direction of the lens assembly 10, the height of the second magnet portion 2622 is greater than or equal to the sum of the height of the first magnet portion 2613 and the moving stroke of the lens assembly 10. Therefore, when the lens assembly 10 is driven by the telescopic component 20, the magnetic repulsion between the first magnet portion 2613 and the second magnet portion 2622 can be maintained at its maximum. Of course, in another specific example of this application, the first magnet portion 2613 is disposed on the fixed component 252, and the second magnet portion 2622 is disposed on the lens assembly 10. The height of the first magnet portion 2613 is greater than the height of the second magnet portion 2622. Therefore, when the lens assembly 10 is driven by the telescopic component 20, the magnetic repulsion between the first magnet portion 2613 and the second magnet portion 2622 can be maintained at a greater extent. This application does not impose any limitations on this aspect.

[0187] In one embodiment of this application, the lens drive module 12 of the lens assembly 10 has a magnetic groove 12121 formed on the base 1212 of the fixing carrier 121, and a first magnetic part 2613 or a second magnetic part 2622 is disposed in the magnetic groove 12121; correspondingly, the fixing assembly 252 may also have a magnetic groove 12121, and a first magnetic part 2613 or a second magnetic part 2622 is disposed in the magnetic groove 12121. By disposing the first magnetic part 2613 and the second magnetic part 2622 in the magnetic groove 12121, the size of the camera module is reduced.

[0188] It should be noted that when the lens drive module is a voice coil motor, regardless of whether the first magnet part 2613 and the second magnet part 2622 are fixed to the lens assembly 10 or the fixing component 252, the first magnet part 2613 and the second magnet part 2622 are preferably disposed on the side of the lens assembly 10 where the drive magnet 1231 is not disposed. In other words, the first magnet part 2613 and the second magnet part 2622 are disposed on different sides of the lens assembly 10 from at least one drive magnet 1231 of the lens assembly 10, that is, at least one drive magnet 1231 is disposed on different sides of the lens assembly 10 from the first holding component 261 (holding module 26). For example, the first magnet part 2613 and the second magnet part 2622 are fixed to the first side 101 of the lens assembly 10, while at least one drive magnet 1231 is disposed on at least one of the second side 102, the third side 103, and the fourth side 104 of the lens assembly 10. If the first magnet portion 2613 and the second magnet portion 2622 are disposed on the same side as at least one driving magnet 1231, the magnetic fields of the first magnet portion 2613 and the second magnet portion 2622 will affect the operation between the driving magnet 1231 and the driving coil 1232. In a specific example of this application, the first magnet portion 2613 is fixed to the lens driving module 12, and at least one driving magnet 1231 is disposed on a different side of the lens assembly 10 from the first magnet portion 2613.

[0189] Further reference Figures 13A to 12B The telescopic component 20 also includes a support module 27, which is disposed between the lens assembly 10 and the fixing component 252 to reduce the frictional force experienced by the lens assembly 10 during movement. The lens assembly 10 is supported by the fixing component 252 via the support module 27. In one embodiment of this application, the support module 27 and the retaining module 26 (first retaining member 261, second retaining member 262) are disposed on opposite sides of the lens assembly 10. The support module 27 is clamped between the lens assembly 10 and the fixing component 252 by the mutual repulsion between the first magnet portion 2613 and the second magnet portion 2622. For example, the first magnet portion 2613 and the second magnet portion 2622 are disposed on the first side 101 of the lens assembly 10, and the support module 27 is disposed on the third side 103 of the lens assembly 10 opposite to the first side 101.

[0190] In one embodiment of this application, the support module 27 includes at least three ball bearings 271 disposed between the lens assembly 10 and the fixing component 252, wherein the lens assembly 10 is supported on the fixing component 252 by the at least three ball bearings 271. Further, the support module 27 also includes at least one inner ball bearing groove 272 formed on the outer surface of the lens assembly 10 and at least one outer guide rail 273 formed on the inner surface of the fixing component 252, wherein the at least one inner ball bearing groove 272 and the at least one outer guide rail 273 are disposed opposite to each other and clamp the at least three ball bearings 271. In a specific example, the inner ball bearing groove 272 is formed on the outer surface of the fixing carrier 121 of the lens drive module 12.

[0191] In one specific embodiment of this application, at least one outer guide rail 273 includes a first guide rail 2731 and a second guide rail 2732, at least one inner ball groove 272 includes a first ball groove 2721, a second ball groove 2722, a third ball groove 2723 and a fourth ball groove 2724, and at least three balls include a first ball 2711, a second ball 2712, a third ball 2713 and a fourth ball 2714. The first guide rail 2731 and the second guide rail 2732 are formed on the inner side of the fixing assembly 252 and distributed on both sides of the magnetic yoke 262. The first ball groove 2721 and the second ball groove 2722 are disposed opposite to the first guide rail 2731, and the third ball groove 2723 and the fourth ball groove 2724 are disposed opposite to the second guide rail 2732. The first ball 2711 is disposed in the first ball groove 2721, the second ball 2712 is disposed in the second ball groove 2722, the third ball 2713 is disposed in the third ball groove 2723, and the fourth ball 2714 is disposed in the fourth ball groove 2724. The extending direction of the first guide rail 2731 and the second guide rail 2732 is parallel to the moving direction of the lens assembly 10. The lens assembly 10 moves along the optical axis through the first guide rail 2731 and the second guide rail 2732.

[0192] In one embodiment of this application, at least three balls 271 are fixed in at least one inner ball groove 272, and the at least three balls 271 slide relative to at least one outer guide rail 273. In another embodiment of this application, the at least three balls 271 can be replaced by at least three sliders, which are formed on the outer surface of the lens assembly 10 and opposite to the at least one outer guide rail 273. The lens assembly 10 is supported on the fixing component 252 by the at least three sliders, and the sliding of the at least three sliders on the at least one outer guide rail 273 reduces frictional resistance.

[0193] In order to limit the maximum extension stroke of the lens assembly 10 and reduce the risk of the lens assembly 10 colliding with the sleeve module 24 when the sleeve module 24 is in the maximum extension state under the drive of the pop-out module 22, the telescopic assembly 20 also includes a stop module 25, which can limit the extension distance of the lens assembly 10.

[0194] The stop module 25 includes a fixed component 252 and a stop movable component 251. The fixed component 252 is fixed to the support base 221 by means of, for example, adhesive bonding. The stop movable component 251 is fixed to the lens assembly 10 and moves with the movement of the lens assembly 10. Through the abutment between the stop movable component 251 and the fixed component 252, the stop movable component 251 is prevented from moving towards the object side of the optical axis, thereby preventing the lens assembly 10 from moving towards the object side, thus limiting the continued extension of the lens assembly 10, limiting the travel of the lens assembly 10 towards the object side of the optical axis, and limiting the driving stroke of the pop-up module 22. In one embodiment of this application, the stop movable component 251 extends outward (i.e., away from the optical axis) from the fixed carrier 121 of the lens drive module 12.

[0195] Specifically, the stop movable component 251 includes at least one stop extension 2511, which extends integrally outward (i.e. away from the optical axis) from the base 1212 of the lens drive module 12, and the at least one stop extension 2511 protrudes from the base 1212; the fixing component 252 includes a fixing upper part 2521 and a fixing lower part 2522, which are fixed together by means of, for example, bonding, welding, fitting, integral molding, etc., and the fixing lower part 2522 is fixed to the support base 221 by means of, for example, bonding. The upper fixed portion 2521 has at least one stop surface 25210, which is not covered by the lower fixed portion 2522. At least one stop extension 2511 is stopped by the upper fixed portion 2521 of the fixing assembly 252 by abutting against the at least one stop surface 25210, thereby limiting the extension stroke of the lens assembly 10.

[0196] In one embodiment of this application, at least one stop extension 2511 is not located on the same side of the lens assembly 10 as the support module 27 and the retaining module 26 (first retaining member 261, second retaining member 262). In other words, when the first magnet portion 2613 and the second magnet portion 2622 of the retaining module 26 are disposed on the first side 101 of the lens assembly 10, the support module 27 is disposed on the third side 103 of the lens assembly 10 opposite to the first side 101, and at least one stop extension 2511 is disposed on one or both sides of the second side 102 and the fourth side 104 of the lens assembly 10. That is, the retaining module 26 and the stop movable component 251 are disposed on different sides of the lens assembly 10, thereby reducing the interference between the retaining module 26 and the stop movable component 251.

[0197] In one embodiment of this application, in at least one direction perpendicular to the optical axis, the inner diameter of the upper fixing portion 2521 is smaller than the inner diameter of the lower fixing portion 2522, thereby exposing at least one stop surface 25210 of the upper fixing portion 2521, which is adapted to abut against at least one stop extension 2511. In one example, the fixing component 252 has a stepped outer surface.

[0198] In one embodiment of this application, the lower fixing portion 2522 has at least one stop groove 25221, the number of stop grooves 25221 is the same as the number of stop extension portions 2511. By providing the stop grooves 25221, the bottom surface of the upper fixing portion 2521 is not covered by the lower fixing portion 2522 to form at least one stop surface 25210 of the upper fixing portion 2521.

[0199] In one specific embodiment of this application, there are two stop extension portions 2511, which extend outward (i.e., away from the optical axis) from the second side 102 and the fourth side 104 of the base 1212 of the lens drive module 12. At this time, the first magnet portion 2613 and the second magnet portion 2622 of the retaining module 26 are disposed on the first side 101 of the lens drive module 12, and the support module 27 is disposed on the third side 103 of the lens assembly 10 opposite to the first side 101. The fixing lower portion 2522 has two stop grooves 25221 located on the second side 102 and the fourth side 104 respectively, so that the bottom surface of the fixing upper portion 2521 is not covered by the fixing lower portion 2522 on the second side 102 and the fourth side 104, forming two stop surfaces 25210. The extension stroke of the lens drive module 12 is limited by the two stop surfaces 25210 of the fixing component 252 stopping the two stop extensions 2511 respectively.

[0200] Other structures in the camera module 1 can be found in the embodiments described above, and will not be repeated here.

[0201] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A camera module, characterized in that, include: Photosensitive components; A lens assembly held in the light-sensing path of the photosensitive component, comprising a lens driving module and an optical lens mounted on the lens driving module, the optical lens having an optical axis; A light-transmitting cover plate covers the top of the optical lens, the light-transmitting cover plate having a cover plate image side, the cover plate image side being opposite to the optical lens; as well as Telescopic component, comprising: A sleeve module, the sleeve module including a limiting carrier, the light-transmitting cover plate being fixed to the limiting carrier, the limiting carrier having a limiting image side side, the limiting image side side being opposite to the lens driving module; A telescopic drive module, wherein the sleeve module is fixed to the telescopic drive module, and the sleeve module is driven by the telescopic drive module to move along the optical axis; The distance between the cover plate image side and the limiting image side is greater than the height of the optical lens protruding from the lens drive module.

2. The camera module according to claim 1, wherein, The distance between the cover plate image side and the limiting image side is at least 0.15 mm greater than the height of the optical lens protruding from the lens drive module.

3. The camera module according to claim 1, wherein, The limiting carrier includes a carrier body and a limiting protrusion extending from the carrier body toward the image side. The limiting image side is formed on the image side of the limiting protrusion, and the orthographic projection of the limiting image side in the direction of the optical axis at least partially overlaps with the orthographic projection of the lens driving module in the direction of the optical axis.

4. The camera module according to claim 3, wherein, The limiting carrier includes a cover plate support portion, which extends inward from the carrier body, and the light-transmitting cover plate is fixed to the cover plate support portion.

5. The camera module according to claim 1, wherein, The sleeve module includes a movable sleeve and a sleeve transmission component. The sleeve transmission component is fixed to the image side of the movable sleeve, and the limiting carrier is fixed to the object side of the movable sleeve. The sleeve module is fixed to the telescopic drive module through the sleeve transmission component.

6. The camera module according to any one of claims 1-5, wherein, The telescopic component includes a pop-up module, which includes a support base and an elastic member. The support base is fixed to the photosensitive component, and the elastic member is clamped between the support base and the lens component. The lens component is driven by the pop-up module to move toward the object side, wherein the driving stroke of the pop-up module is less than the driving stroke of the telescopic driving module.

7. The camera module according to claim 6, wherein, The telescopic component includes a stop module, which includes a stop movable component and a fixing component. The stop movable component is fixed to the lens assembly, and the fixing component is fixed to the support base. The lens assembly is prevented from moving toward the object side by the abutment between the stop movable component and the fixing component.

8. The camera module according to claim 7, wherein, The telescopic assembly includes a retaining module, which includes a magnet part and a magnetic yoke part disposed opposite to the magnet part. The magnet part is fixed to one of the lens assembly or the fixing assembly, and the magnetic yoke part is fixed to the other of the lens assembly or the fixing assembly. The magnet part and the magnetic yoke part are magnetically attracted to each other, so that the retaining module holds the lens assembly to one side of the telescopic assembly by magnetic attraction.

9. The camera module according to claim 8, wherein, The telescopic component includes a support module, which and the retaining module are disposed on the same side of the lens assembly. The support module is clamped between the lens assembly and the fixing component by the magnetic attraction between the magnet part and the yoke part.

10. The camera module according to claim 5, wherein, The telescopic assembly includes a housing, which includes a cover, a base, and a vent. The cover and the base are interlocked to form a receiving cavity to accommodate the sleeve module and the telescopic drive module. The cover has a vent hole formed on the side wall of the cover, and the vent covers the vent hole.

Images