A lens assembly and a camera module

Abstract

The application discloses a lens assembly and a camera module, and belongs to the technical field of camera modules. The lens assembly comprises a shell, a lens movably arranged in the shell, a driving assembly connected with the shell and the lens to drive the lens to move relative to the shell, and a first buffer member comprising a main body and an elastic arm connected with each other. The main body is arranged on the shell, part of the elastic arm is configured to be elastically deformed and displaced relative to the main body, and the elastic arm is arranged between the lens and the inner wall of the shell to buffer the impact of the lens by deformation when the lens is pushed and moved. The lens assembly and the camera module provided by the application can limit the impact of the lens on the module shell and reduce abnormal sound.

Description

Technical Field

[0001] This application belongs to the field of camera module technology, and in particular relates to a lens assembly and a camera module. Background Technology

[0002] The camera module includes a lens and an image sensor. Imaging light enters the camera module through the lens, and after the lens adjusts the light path, it is projected onto the image sensor to complete the imaging operation. Simultaneously, the camera module also includes focusing or image stabilization motors to drive the lens to move along its optical axis or in a direction orthogonal to the optical axis, thereby achieving lens focusing or image stabilization.

[0003] However, in order to meet the shooting requirements of higher resolution, larger aperture lenses and longer image stabilization or focusing distances are often used, which makes the lens heavier and more prone to large-scale shaking. This increases the risk of the lens hitting the module housing and causing abnormal impact noise. Summary of the Invention

[0004] This application provides a lens assembly and a camera module, aiming to at least partially solve the technical problem of the lens of the camera module easily impacting the module housing, causing abnormal noise. Therefore,

[0005] One aspect of this application provides a lens assembly, including:

[0006] case;

[0007] The lens is movably mounted within the housing;

[0008] A drive assembly, connected to the housing and the lens, to drive the lens to move relative to the housing;

[0009] The first buffer includes a connected main body and an elastic arm. The main body is disposed on the housing. A portion of the elastic arm is configured to elastically deform and shift relative to the main body. The elastic arm is positioned between the lens and the inner wall of the housing to buffer the impact of the lens through deformation when pushed and moved by the lens.

[0010] In some embodiments, the body is provided with a window, and at least a portion of the deformation displacement trajectory of the elastic arm is located within the window.

[0011] In some embodiments, the elastic arm has a free state and a deformed state, and in the free state, a portion of the elastic arm is located outside the window.

[0012] In some embodiments, the resilient arm includes:

[0013] A stop is provided between the lens and the inner wall of the housing;

[0014] The bending part is connected to the stop part and the main body respectively. The bending part is configured as an elastic deformation structure, and the stop part simultaneously pulls the bending part to elastically deform during the lens push-up and displacement process.

[0015] In some embodiments, the lens is provided with a first impact portion that cooperates with the elastic arm. The first impact portion includes a first boss that abuts against the elastic arm.

[0016] In some embodiments, a clearance recess is provided on the side of the lens near the first buffer member, and the clearance recess is disposed opposite to the first buffer member in the direction of lens movement, and the first impact member is disposed in the clearance recess.

[0017] In some embodiments, the lens assembly further includes a second buffer disposed between the lens and the housing, and the distance from the second buffer to the lens is different from that of the first buffer in the direction of lens movement.

[0018] In some embodiments, the first buffer is a metal spring, and the second buffer is a soft silicone material.

[0019] In some embodiments, a plurality of second protrusions are spaced apart on the side surface of the second buffer member near the lens.

[0020] Another aspect of this application embodiment includes a camera module, including the aforementioned lens assembly.

[0021] The embodiments of this application have at least the following beneficial effects:

[0022] The lens assembly and camera module provided in this application include a housing, a lens, a drive assembly, and a first buffer. The lens is movably disposed within the housing. The drive assembly is connected to the housing and the lens to drive the lens to move relative to the housing. The first buffer includes a connected main body and an elastic arm. The main body is disposed on the housing. A portion of the elastic arm is configured to elastically deform and shift relative to the main body. The elastic arm is positioned between the lens and the inner wall of the housing. During the process of the lens pushing the elastic arm to move, the elastic deformation and shift of the elastic arm absorbs the impact energy of the lens, reduces the moving speed of the lens, thereby reducing the impact intensity of the lens on the housing, and even preventing the lens from hitting the housing, thereby reducing or even eliminating impact noise. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the lens assembly in an embodiment of this application is shown;

[0025] Figure 2 It shows Figure 1 A schematic diagram of the structure of the first buffer component of the lens assembly;

[0026] Figure 3 It shows Figure 1 A first-direction cross-sectional view of the lens assembly in the image;

[0027] Figure 4 It shows Figure 1 A second-direction sectional view of the lens assembly in the image;

[0028] Figure 5 A schematic diagram of another structure of the lens assembly in the embodiment of the application is shown;

[0029] Figure 6 It shows Figure 5 A schematic diagram of the assembly of the first and second buffer components with the lens in the lens assembly.

[0030] Figure 7 It shows Figure 5 A schematic diagram of the assembly of another second buffer and the first buffer in the lens assembly.

[0031] Figure label:

[0032] 1-Housing shell, 11-Second guide groove;

[0033] 2-Lens, 21-First impact part, 211-First boss, 22-Second impact part, 23-First guide groove, 24-Avoidance recess;

[0034] 3-Drive assembly, 31-Drive magnet, 32-Drive coil, 33-Rolling element, 331-Ball;

[0035] 4-First buffer, 41-Main body, 411-Window, 42-Elastic arm, 421-Bending part, 422-Stop part;

[0036] 5-Second buffer, 51-Second boss;

[0037] 6-Third buffer. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0039] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] This application is described below with reference to the accompanying drawings and specific embodiments:

[0041] This application provides a lens assembly and a camera module, which aims to reduce the impact strength of lens movement on the module housing to a certain extent, reduce impact noise, and improve product quality.

[0042] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, the lens assembly includes a housing 1, a lens 2, a drive assembly 3, and a first buffer 4. The lens 2 is movably disposed within the housing 1. The drive assembly 3 is connected to the lens 2 and the housing 1 to drive the lens 2 to move relative to the housing 1 along a predetermined direction Z. The first buffer 4 is disposed between the lens 2 and the housing 1 to cushion the impact on the lens 2 and reduce impact noise from the lens 2.

[0043] Specifically, the first buffer 4 includes a main body 41 and an elastic arm 42. The main body 41 is disposed on the housing 1, and the elastic arm 42 is connected to the main body 41. The elastic arm 42 is an elastically deformable component that can absorb impact energy through elastic deformation, thereby realizing the buffer function.

[0044] Under the action of external force, the elastic arm 42 can deform and shift to a certain extent along the set direction Z and generate an elastic restoring force; after the external force is removed, the elastic arm 42 can be reset under the action of the elastic restoring force, so that the first buffer 4 can use the elastic deformation and shift of the elastic arm 42 to buffer external impact and weaken impact energy.

[0045] The main body 41 serves as a load-bearing base and can be fitted onto the housing 1, thereby mounting the first buffer 4 onto the housing 1. When the first buffer 4 is mounted onto the housing 1, the elastic arm 42 is positioned between the lens 2 and the housing 1. After the lens 2 moves a certain distance towards the housing 1 along the predetermined direction Z, it will contact and push against the elastic arm 42. Through the displacement and deformation of the elastic arm 42, the impact energy of the lens 2 is gradually absorbed, reducing the movement speed of the lens 2 and weakening the energy impacting the housing 1, thereby reducing or even eliminating lens impact noise.

[0046] It is worth noting that the elastic deformation direction of the elastic arm 42 is adapted to the moving direction of the lens 2, enabling it to deform stably under the pushing force of the lens 2. Correspondingly, the lens 2 is provided with a first impact part 21, which is matched and aligned with the elastic arm 42. After the lens 2 moves a certain distance toward the elastic arm 42, the first impact part 21 makes stable contact with the elastic arm 42; as the lens 2 moves further, the first impact part 21 pushes the elastic arm 42, causing it to shift and deform.

[0047] In some embodiments, during the movement of the lens 2 toward the first buffer 4, after the lens 2 pushes against the elastic arm 42 and moves a certain distance, the main structure of the lens 2 may directly impact the main body 41, resulting in unsatisfactory buffering performance.

[0048] Therefore, the first impact portion 21 can be configured to protrude from a local surface of the lens 2 to correspondingly contact and push the elastic arm 42, thereby pushing the elastic arm 42 further and obtaining a larger deformation buffer stroke, thereby improving the buffering and noise reduction performance, and reducing the risk of the lens 2 directly colliding with the body 41.

[0049] Specifically, the first impact part 21 may include a first protrusion 211 protruding from a partial surface of the lens 2. The first protrusion 211 matches the specifications of the elastic arm 42 and can stably contact and push the elastic arm 42.

[0050] In some embodiments, taking the lens 2 as an example of focusing along the set direction Z, the elastic arm 42 can be blocked on one side of the movement direction of the lens 2, and correspondingly, the first protrusion 211 can be disposed on one side surface of the movement direction of the lens 2.

[0051] In other words, in order to limit the impact noise during the focusing operation of the moving lens, the first protrusion 211 can be provided on the light-inlet side or light-outlet side end face of the lens 2, and correspondingly, the elastic arm 42 can be provided on the light-inlet side or light-outlet side of the lens 2.

[0052] In some embodiments, taking the lens 2 moving in an orthogonal direction along the set direction Z as an example, in order to limit the impact noise during the lens stabilization operation, the first boss 211 may be provided on the circumferential side of the lens 2, and correspondingly, the elastic arm 42 may be provided on the circumferential outside of the lens 2.

[0053] See Figure 6 In some embodiments, since the first buffer 4 is installed and is positioned between the housing 1 and the lens 2, it will occupy the travel space of the lens 2 to a certain extent. If the specifications of the housing 1 remain unchanged, the travel of the lens 2 will be reduced to a certain extent, affecting the shooting performance.

[0054] Therefore, a clearance recess 24 can be provided on the side of the lens 2 near the first buffer 4, and the clearance recess 24 is disposed opposite to the first buffer 4 in the moving direction of the lens 2, thereby forming a clearance space on the lens 2 to accommodate the first buffer 4, thereby reducing the impact on the travel of the lens 2.

[0055] Correspondingly, the first impact part 21 can be disposed in the avoidance recess 24 to push against the elastic arm 42.

[0056] It is worth noting that, in the direction of movement of the lens 2, the depth of the avoidance recess 24 should be sufficient to accommodate the first buffer 4, thereby fully avoiding the first buffer 4. That is, in the set direction Z, the distance between the first impact part 21 and the first buffer 4 is greater than the travel of the lens 2.

[0057] In some embodiments, considering that the elastic arm 42 will shift to a certain extent when impacted by the lens 2, and there is a risk of it colliding with the main body 41, a window 411 can be provided on the main body 41 to leave a certain amount of movement space for the elastic arm 42, thereby reducing the risk of collision.

[0058] Generally, the position of the window 411 can be adapted to the deformation and movement trajectory of the elastic arm 42; that is, at least part of the movement trajectory of the elastic arm 42 is located within the window 411. When the elastic arm 42 is impacted by the lens 2 and deforms, part of the elastic arm 42 will be able to enter or even pass through the window 41, thereby avoiding contact with the main body 41 and ensuring the reliability of the buffering function.

[0059] In some embodiments, the elastic arm 42 can be configured to deform in a swinging manner, absorbing impact energy by swinging relative to the main body 41, thereby achieving a buffering and noise reduction effect. Of course, in other embodiments, the elastic arm 42 can be configured to deform in a telescopic manner.

[0060] That is, one end of the elastic arm 42 is connected to the main body 41, and the other end of the elastic arm 42 is a free end that can swing under the impact of the lens 2.

[0061] In some embodiments, considering that the swing deformation energy absorption and buffering performance of the elastic arm 42 is approximately positively correlated with the range of motion, the initial position of the elastic arm 42 can be set so that the elastic arm 42 has a larger swing stroke.

[0062] Specifically, the elastic arm 42, as an elastic element, has a free state and a deformed state. In order to obtain a larger swing stroke, in the free state, part of the elastic arm 42 is located outside the window 411. Under the push of the first impact part 21 or the first protrusion 211 on the lens 2, the elastic arm 42 can move towards the window 411, and then enter the window 411, and even reach the other side of the window 411, to achieve large stroke displacement deformation energy absorption.

[0063] In some embodiments, considering that the swing deformation energy absorption has a large range of movement and there is a risk of interference with the surrounding structure, in order to maintain the reliability of the buffer function, the elastic arm 42 can be correspondingly set inside the window 411, and the main body 41 can surround the elastic arm 42 to a certain extent, blocking the interference of the external structure and ensuring the stability of the structure and function of the elastic arm 42.

[0064] One end of the elastic arm 42 can be disposed on one side edge of the window 411, and the other end can be movably disposed within the window 411, so that it can move and absorb energy within the window 411 under the push of the lens 2.

[0065] In some embodiments, the elastic arm 42 needs to stably abut against the lens 21 and be able to deform stably. For this purpose, the elastic arm 42 may include at least two functional parts, namely, the part that abuts against the lens 21 and the swinging deformation part.

[0066] Specifically, the elastic arm 42 may include a bending portion 421 and a stop portion 422. One end of the bending portion 421 is connected to the main body 41, and the other end of the bending portion 421 is connected to the stop portion 422.

[0067] The stop 422 can be positioned on one side of the lens 2 in the direction of movement, so that when the lens 2 moves to a position abutting the stop 422, the bent part undergoes a slight deformation and applies resistance to the movement of the lens 2 through the stop 422; and when the lens 2 moves further, it will push the stop 422 to move and force the bent part 421 to undergo a greater degree of deformation and displacement, thereby applying greater resistance to the lens 2 through the stop 422 and continuously buffering and absorbing energy to reduce impact noise.

[0068] When the lens 2 moves in the opposite direction, the bent part 421 will naturally reset under the drive of the elastic reset force.

[0069] Generally, the swing arm 421 can be configured as a long strip, and the stop portion 422 can be configured as one end region of the bending portion 421, that is, the stop portion 422 and the bending portion 421 are integrally configured, thereby ensuring the mechanical properties of the elastic arm 42 are stable and possessing good structural strength and stability. Of course, the stop portion 422 can also be configured as an independent component and fixedly installed on the swing arm 421; no specific limitation is made here. The integral configuration in this application can be integrally formed, such as by stamping in one piece; or the stop portion 422 and the bending portion 421 can be fixedly connected as one piece by welding or other connection methods.

[0070] In some embodiments, considering that the bending portion 421 needs to deform and absorb energy, and the stop portion 422 needs to stably abut against the lens 2 and move approximately along a straight line trajectory, the bending portion 421 can be configured as a reciprocating bending form, thereby the bending portion 421 can obtain stronger deformation energy absorption performance.

[0071] On the other hand, since the bending part 421 is a reciprocating bending part, it has a larger deformation range, which can adapt to the linear movement of the lens 2. The large stretching deformation of the bending part 421 can satisfy the stop part 422 to follow the lens 2 in a roughly straight line and maintain a stable contact state.

[0072] Generally, the reciprocating bending direction of the bending portion 421 is approximately orthogonal to the length direction of the bending portion 421, and the reciprocating bending direction of the bending portion 421 and the length direction of the bending portion 421 are approximately orthogonal to the moving direction of the lens 2.

[0073] In other words, when the stop part 422 is impacted, the pushing force is approximately orthogonal to the bending direction and length direction of the bending part 421. The bending part 421 causes the stop part 422 to move with the lens 2 through stretching deformation and swing deformation along the length direction.

[0074] In some embodiments, the number of bending portions 421 can be set to multiple, which are spaced apart and connected to the circumferential side of the stop portion 422, thereby suspending the stop portion 422 within the window 411. When impacted by the lens 2, the stop portion 422 can move slowly under the combined traction of the multiple bending portions 421, absorbing the impact energy, slowing down the movement speed of the lens 2, and ensuring that the stop portion 422 remains stably pressed against the lens 2.

[0075] Generally, the surface of the stop part 422 can be orthogonal to the moving direction of the lens 2. Under the traction of the multiple bending parts 421, it can maintain the stability of the spatial posture, thereby ensuring stable contact with the lens 2.

[0076] In some embodiments, the bending portion 421 may be configured as a plate, the bending direction of the bending portion 421 is along the width direction X of the plate, and the moving direction of the lens 2 is approximately along the thickness direction Z of the plate, so that when impacted by the lens 2, the bending portion 421 can be stretched and deformed along the length direction Y of the plate and swing along the thickness direction Z.

[0077] In some embodiments, considering that the stop 422 needs to move within the window 411, i.e., along Figure 2 The width direction X is slightly shifted, the length direction Y is slightly shifted, and more importantly, it moves along the thickness direction Z. The length and width of the first boss 211 can be smaller than the length and width of the window 411.

[0078] Furthermore, the first boss 211 in this application is approximately the same size as or slightly smaller than the stop portion 422, thereby reducing the risk of contact interference with the edge of the window 411.

[0079] In some embodiments, the bending portion 421 serves as a connection between the stop portion 422 and the main body 41, as well as a deformation portion, and may also be made of elastic material such as a spring with elastic deformation capability.

[0080] An extension may also be integrally provided on one side of the stop portion 422 as a connection portion with the main body 41, that is, the bending portion 421 is not provided, and the elastic deformation force is provided by the extension portion of the stop portion 422.

[0081] In some embodiments, the elastic arm 4 may also be configured as a spring that can be compressed and deformed along the axial direction, so as to withstand the impact of the lens 2 from the front and absorb energy through compression deformation, thereby reducing the abnormal noise of the impact of the lens 2.

[0082] In some embodiments, the first buffer 4 may be configured as an elastic metal material that can deform under external pressure and then generate an elastic restoring force.

[0083] It is worth noting that the elastic coefficient of the first buffer 4 can be flexibly selected according to the buffer stroke of the first buffer 4. That is, the first buffer 4 can reduce the speed of the impacting lens 2 to below a set value, thereby reducing the abnormal noise of the lens 2 hitting the module housing.

[0084] See Figure 5 , Figure 6 and Figure 7 In some embodiments, considering that some large aperture lenses are large in size and weight, and have correspondingly large inertia, in order to obtain an efficient buffering deceleration effect, the swing stroke of the elastic arm 42 is also correspondingly large, which requires a larger working space and increases the risk of interference between the elastic arm 42 and the surrounding structure.

[0085] To this end, a second buffer 5 can be provided inside the housing 1 to cooperate with the first buffer 4 to form a two-stage buffer structure, thereby enhancing the energy absorption performance and reducing the impact noise of large-format lenses.

[0086] Specifically, the second buffer 5 can be positioned between the lens 2 and the housing 1. The lens 2 is provided with a second impact part 22 that cooperates with the second buffer 5. When the lens 1 moves toward the second buffer 5 and contacts and abuts the second buffer 5, the second buffer 5 absorbs the impact energy and reduces the moving speed of the lens 2.

[0087] In other words, the second buffer 5 contacts the first buffer 4 to absorb the impact energy of the lens 2, thereby obtaining greater buffering and noise reduction capabilities and reducing the impact noise of large aperture, large-format lenses.

[0088] In some embodiments, the second buffer 5 and the first buffer 4 adopt a relay mode. By configuring the distance between the second buffer 5 and the second impact part 22 and the distance between the first buffer 4 and the first impact part 21, the second buffer 5 and the first buffer 4 asynchronously contact each other to buffer the impact of the lens 2, thereby realizing the relay buffering working mode to gradually increase the energy absorption intensity of the buffer, enhance the buffering effect, and reduce the impact noise of large-format lenses.

[0089] Generally, the distance from the first buffer 4 to the first impact part 21 can be set to be smaller than the distance from the second buffer 5 to the second impact part 22, so that the first buffer 4 can first perform buffering, energy absorption and deceleration, and then the second buffer 5 can perform buffering, energy absorption and deceleration, thereby enhancing the buffering and energy absorption capacity.

[0090] It is worth noting that the relay-engagement buffering mode of the second buffer 5 and the first buffer 4 can, to a certain extent, slow down the deceleration of the lens 2, and prevent the lens 2 from vibrating violently due to the rapid change in speed of the lens 2 when the two buffers are engaged at high speed, thus affecting the stability of the module structure. At the same time, the second buffer 5 can be engaged after the speed of the lens 2 has decreased to a certain level, further enhancing the energy absorption performance of the buffer and reducing impact noise.

[0091] In some embodiments, the second buffer 5 may be made of a flexible energy-absorbing material, such as soft silicone, which can be used to cushion the impact of the lens 2 by compressing and deforming the soft silicone material, thereby reducing the impact intensity and suppressing impact noise.

[0092] Of course, the material of the second buffer 5 can also be a rubber part with a certain hardness, or other material parts with a certain deformation capability.

[0093] In some embodiments, in order to improve the buffering effect, a plurality of second protrusions 51 may be provided at intervals on one side surface of the second buffer member 5 for contacting and buffering the impact of the lens 2.

[0094] The surfaces of the plurality of second protrusions 51 are directly opposite the lens 2, and a certain gap is left between the plurality of second protrusions 51. When the lens 2 impacts the second protrusions 51, the second protrusions 51 can fully deform to the gap areas on both sides to absorb the impact energy and ensure the buffering effect.

[0095] See Figure 1 , Figure 4 and Figure 5 In some embodiments, considering that the focusing movement or image stabilization movement of the lens 2 is a reciprocating movement mode, in order to ensure the reliability of the buffer noise reduction function, a third buffer 6 can be provided on the other side of the movement stroke of the lens 2 to achieve reset buffer noise reduction. That is to say, buffer anti-collision structures are built at both ends of the movement stroke of the lens 2 to reduce impact noise.

[0096] Generally, the third buffer 6 can adopt the structural form of the first buffer 4 or the second buffer 5, and no specific limitation is made here.

[0097] See Figure 5 , Figure 6 and Figure 7 In some embodiments, in order to meet the lens configuration requirements of certain camera modules, multiple lens assemblies are usually provided, including one or more fixed lenses and movable lenses, and they need to be spaced apart along the optical axis.

[0098] Therefore, to avoid impacts between adjacent movable lenses, second protrusions 51 can be provided on both sides of the second buffer 5, forming two buffer surfaces to cope with impacts from lenses on both sides. If only impacts from one side of the lens are required, only one buffer surface and the second protrusion 51 can be provided, and the configuration can be flexibly adjusted according to actual needs.

[0099] In some embodiments, the driving component 3 may employ a driving mechanism based on the voice coil motor principle, utilizing the force exerted by an energized coil in a magnetic field as the driving force to achieve non-contact driving, thereby reducing the complexity of the mechanism. Specifically, the driving component 3 includes a driving magnet 31 and a driving coil 32 disposed opposite to each other. The driving magnet 31 is disposed on the lens 2, and the driving coil 32 is disposed on the housing 1. The force between the energized driving coil 32 and the driving magnet 31 can be set along the moving direction of the lens 2.

[0100] In some embodiments, in order to ensure the smoothness of the lens 2, a rolling element 33 may be provided between the lens 2 and the housing 1 to support the lens 2 in a rolling manner.

[0101] Correspondingly, a first guide groove 23 can be provided on the lens 2, and a second guide groove 11 can be provided on the housing 1. The first guide groove 23 and the second guide groove 11 are arranged opposite to each other. The rolling element 33 can be rolled in the first guide groove 23 and the second guide groove 11 to ensure the stability of the rolling direction, thereby stably supporting the lens 2.

[0102] Generally, the rolling element 33 can be configured as a ball bearing, thereby having better adaptability and reducing frictional damage with the first guide groove 23 and the second guide groove 11.

[0103] In some embodiments, a camera module is also provided, including the lens assembly described above.

[0104] The embodiments of this application have at least the following beneficial effects:

[0105] The lens assembly and camera module provided in this application include a housing, a lens, a drive assembly, and a first buffer. The lens is movably disposed within the housing. The drive assembly is connected to the housing and the lens to drive the lens to move relative to the housing. The first buffer includes a connected main body and an elastic arm. The main body is disposed on the housing. A portion of the elastic arm is configured to elastically deform and shift relative to the main body. The elastic arm is positioned between the lens and the inner wall of the housing. During the process of the lens pushing the elastic arm to move, the elastic deformation and shift of the elastic arm absorbs the impact energy of the lens, reduces the moving speed of the lens, thereby reducing the impact intensity of the lens on the housing, and even preventing the lens from hitting the housing, thereby reducing or even eliminating impact noise.

[0106] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0107] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0108] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0109] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0110] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0111] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0112] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0113] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A lens assembly, characterized in that, include: case; The lens is movably mounted within the housing; A drive assembly, connected to the housing and the lens, to drive the lens to move relative to the housing; The first buffer includes a connected main body and an elastic arm. The main body is disposed on the housing. A portion of the elastic arm is configured to elastically deform and shift relative to the main body. The elastic arm is positioned between the lens and the inner wall of the housing to buffer the impact of the lens through deformation when pushed and moved by the lens. The main body is provided with a window, one end of the elastic arm is disposed on one side of the window, and the other end is movably disposed within the window area.

2. The lens assembly as claimed in claim 1, characterized in that, At least a portion of the deformation displacement trajectory of the elastic arm lies within the window.

3. The lens assembly as described in claim 2, characterized in that, The elastic arm has a free state and a deformed state, and in the free state, a portion of the elastic arm is located outside the window.

4. The lens assembly as claimed in claim 1, characterized in that, The elastic arm includes: A stop is provided between the lens and the inner wall of the housing; The bending part is connected to the stop part and the main body respectively. The bending part is configured as an elastic deformation structure, and the stop part simultaneously pulls the bending part to elastically deform during the lens push-up and displacement process.

5. The lens assembly as claimed in claim 1, characterized in that, The lens is provided with a first impact part that cooperates with the elastic arm. The first impact part includes a first protrusion, which is in a state of abutting against the elastic arm.

6. The lens assembly as claimed in claim 5, characterized in that, A clearance recess is provided on the side of the lens near the first buffer member, and the clearance recess is disposed opposite to the first buffer member in the direction of lens movement, and the first impact member is disposed in the clearance recess.

7. The lens assembly as described in any one of claims 1 to 6, characterized in that, The lens assembly further includes a second buffer member disposed between the lens and the housing, and the distance from the second buffer member to the lens is different from that of the first buffer member in the direction of lens movement.

8. The lens assembly as claimed in claim 7, characterized in that, The first buffer is a metal spring, and the second buffer is a soft silicone material.

9. The lens assembly as claimed in claim 8, characterized in that, The second buffer has a plurality of second protrusions spaced apart on the side surface near the lens.

10. A camera module, characterized in that, Includes the lens assembly as described in any one of claims 1 to 9.

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